1

UNITED STATES DISTRICT COURT

FOR THE DISTRICT OF COLUMBIA

__________________________________________

)

COVIDIEN LP f/k/a TYCO HEALTHCARE )

GROUP LP, a Delaware limited partnership, )

)

Plaintiff, ) 

)

v. ) 

) 

ADVANCED SKELETAL INNOVATIONS LLC, ) Civil Action No. 13-1213 (RBW)

a Texas limited liability company; and )

BONUTTI SKELETAL INNOVATIONS LLC, )

a Delaware limited liability company, )

)

Defendants. )

__________________________________________)

)

ADVANCED SKELETAL INNOVATIONS LLC, )

a Texas limited liability company; and )

BONUTTI SKELETAL INNOVATIONS LLC, )

a Delaware limited liability company, )

)

Counter-Plaintiffs, )

v. )

)

COVIDIEN LP f/k/a TYCO HEALTHCARE )

GROUP LP, a Delaware limited partnership, )

)

Counter-Defendant. )

__________________________________________)

MEMORANDUM OPINION

The plaintiff, Covidien LP, formerly known as Tyco Healthcare Group LP, filed this civil 

action against the defendants, Advanced Skeletal Innovations LLC and Bonutti Skeletal 

Innovations LLC, seeking declaratory relief. Complaint (“Compl.”) ¶¶ 1, 4. Specifically, the 

plaintiff seeks a declaration that its surgical products do not infringe certain patents owned and 

licensed by the defendants: U.S. Patent No. 5,674,240 (filed June 6, 1995) (“’240 Patent”), U.S. 

Patent No. 5,961,499 (filed June 6, 1995) (“’499 Patent”), and U.S. Patent No. 6,338,730 (filed 
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June 6, 1995) (“’730 Patent”) (collectively, “patents-in-suit”). See id. ¶¶ 1-4. This matter is 

currently before the Court for the resolution of the construction of certain disputed claim terms in 

the patents-in-suit. To assist the Court in resolving these disputes, a claim construction hearing 

was held on December 10, 2014. See December 10, 2014 Transcript of Markman Hearing 

(“Hr’g Tr.”) at 1. Upon careful consideration of the parties’ submissions,1as well as their oral 

arguments presented during the hearing, the Court adopts the constructions as described below. 

I. FACTUAL BACKGROUND

The patents-in-suit “generally relate to cannulas for surgical and medical use.” Defs.’ 

Mem. at 2; see also Pl.’s Mem. at 4. Cannulas are “tube[s] that can be inserted into the body, 

often for the delivery or removal of fluid, to create a bigger workspace, or for the gathering of 

data.” Defs.’ Mem. at 2; see also Pl.’s Mem. at 4. Specifically, the patents-in-suit claim 

expandable cannulas, see, e.g.,’240 Patent, at [54], as well as methods of using expandable 

cannulas, see ’730 Patent, at [54]. The patents-in-suit are in the same patent family—that is, they 

share a common parent application and patent: U.S. Patent Application No. 08/013,942, which is 

now U.S. Patent No. 5,320,611 (filed Feb. 4, 1993) (“’611 Patent”). See ’240 Patent, at [60]; 

’499 Patent, at [60]; ’730 Patent, at [60]; see also Corrected Answer and Counterclaim 

(“Countercl.”) at 10, 24-25.

This action came to the Court by way of a dispute between the parties regarding whether 

the plaintiff owed the defendants certain royalties under a particular licensing agreement 

 

1

 In addition to the documents already mentioned, the Court considered the following filings in rendering its 

opinion: (1) the Joint Claim Construction and Prehearing Statement (“Joint Statement”); (2) the Defendants’/ 

Counter-Plaintiffs’ Opening Claim Construction Memorandum (“Defs.’ Mem.”); (3) the Plaintiff and CounterDefendant Covidien LP’s Claim Construction Brief (“Pl.’s Mem.”); (4) the Defendants’/Counter-Plaintiffs’ Reply 

Claim Construction Memorandum (“Defs.’ Reply”); (5) the Plaintiff and Counter-Defendant Covidien LP’s Surreply 

Claim Construction Brief (“Pl.’s Surreply”); and (6) the Joint Appendix of File Histories (“J.A.”).
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involving the patents-in-suit.2 See Compl. ¶¶ 1-4; see also id. ¶¶ 16-26. The defendants have 

filed counterclaims against the plaintiff, alleging infringement of the patents-in-suit and breach 

of contract. See Countercl. at 28-32. The chart below identifies the claims of the patents-in-suit

that have been asserted by the defendants against the plaintiff. E.g., Hr’g Tr. at 6:5-19.

Patent Asserted Claims

’240 Patent 1, 8, 12, 13, 15, 16

’499 Patent 23, 28

’730 Patent 45, 46, 47, 49, 51, 54, 55, 57

II. LEGAL STANDARD

“It is a ‘bedrock principle’ of patent law that ‘the claims of a patent define the invention 

to which the patentee is entitled the right to exclude.’” Phillips v. AWH Corp., 415 F.3d 1303, 

1312 (Fed. Cir. 2005) (en banc) (quoting Innova/Pure Water, Inc. v. Safari Water Filtration Sys., 

Inc., 381 F.3d 1111, 1115 (Fed. Cir. 2004)). In return for that exclusionary right, the patentee 

must precisely define the invention. See id. And the Court cannot construe the invention “in a 

manner different from the plain import of its terms.” Id.; see also Inpro II Licensing, S.A.R.L. v. 

T-Mobile USA, Inc., 450 F.3d 1350, 1355 (Fed. Cir. 2006) (“[T]he claims [cannot] enlarge what 

is patented beyond what the inventor has described as the invention.” (internal quotation marks 

omitted)).

In construing the parties’ disputed claim terms, the Court must afford the terms their 

“ordinary and customary meaning” as understood by “a person of ordinary skill in the art in 

question at the time of the invention.” Phillips, 415 F.3d at 1312-13. A person of ordinary skill 

in the art is “deemed to read the claim term[s] not only in the context of the particular claim in 

 

2 U.S. Patent No. 5,573,517 (filed June 6, 1994) (“’517 Patent”) is also at issue in this case. Compl. ¶ 4. Although 

the plaintiff seeks a declaratory judgment of non-infringement of the ’517 Patent, the defendants have not asserted 

any claims of the ’517 Patent against the plaintiff. Pl.’s Mem. at 4 n.2. 
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which the disputed term[s] appear[], but in the context of the entire patent, including the 

specification” and the prosecution history. Id. at 1313; see also Vitronics Corp. v. Conceptronic, 

Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996) (“[I]n interpreting an asserted claim, the court should 

look first to the intrinsic evidence of record, i.e., the patent itself, including the claims, the 

specification and, if in evidence, the prosecution history.”). The specification “is the single best 

guide to the meaning of . . . disputed [claim] term[s].” Vitronics, 90 F.3d at 1582. 

It can also be appropriate to use extrinsic evidence to determine a term’s meaning. See

Phillips, 415 F.3d at 1317; see also Hormone Research Found., Inc. v. Genentech, Inc., 904 F.2d 

1558, 1562 (Fed. Cir. 1990) (“Claim interpretation involves a review of the specification, the 

prosecution history, the claims (including unasserted as well as asserted claims), and, if 

necessary, other extrinsic evidence . . . .” (emphasis added)). Extrinsic evidence “consists of all 

evidence external to the patent and prosecution history, including expert and inventor testimony, 

dictionaries, and learned treatises.” Phillips, 415 F.3d at 1317 (internal quotations omitted). But 

“while extrinsic evidence can shed useful light on the relevant art, . . . it is less significant than 

the intrinsic record in determining the legally operative meaning of claim language.” Id.

(citations and internal quotation marks omitted).

Claim terms are not afforded their ordinary and customary meaning in only two 

circumstances: “(1) when a patentee sets out a definition and acts as his own lexicographer, or 

(2) when the patentee disavows the full scope of the claim term either in the specification or 

during prosecution.” Thorner v. Sony Computer Entm’t Am. LLC, 669 F.3d 1362, 1365 (Fed. 

Cir. 2012) (citing Vitronics, 90 F.3d at 1580); see also Edwards Lifesciences LLC v. Cook Inc., 

582 F.3d 1322, 1329 (Fed. Cir. 2009) (explaining that ordinary meaning of claim terms controls 

unless “the intrinsic evidence shows that the patentee distinguished that term from prior art on 
5

the basis of a particular embodiment, expressly disclaimed subject matter, or described a 

particular embodiment as important to the invention.” (internal quotation marks omitted)). 

Where the patents-in-suit are derived from the same parent application, sharing many common 

terms, claim terms must be construed consistently across the patents-in-suit. See, e.g., Microsoft 

Corp. v. Multi-Tech Sys., Inc., 357 F.3d 1340, 1349-50 (Fed. Cir. 2004).

III. LEGAL ANALYSIS

A. Undisputed Terms

The following claim terms and constructions have been agreed to by the parties. Joint 

Statement at 2; Pl.’s Mem. at 45; see also Defendants’ Argument: PowerPoint Slides and 

Corresponding Transcript at 20. 

Claim Term Construction

Flexible Portion No construction required

Longitudinal/Longitudinally Extending in the direction of the length of a 

thing

Sheath A case or covering

Side wall of the vessel Plain and ordinary meaning

Wires being disposed in a longitudinally 

extending array

An arrangement of wires extending in the 

direction of the length of the cannula

B. Disputed Terms

1. Pierce/Piercing

Disputed Terms Plaintiff’s Proposal Defendants’ Proposal

Pierce/Piercing

’240 Patent (claim 1)

’499 Patent (claim 28)

’730 Patent (claims 45, 49, 51, 

54)

Initiate/Initiating formation of an 

opening where there is no 

opening

Pushing, or forming an 

opening, through

The parties’ dispute here boils down to whether the terms “pierce” and “piercing” in the 

context of the patents-in-suit are necessarily limited to the formation of an opening, or if the 
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terms may also include the “pushing through” of a pre-existing opening. See Pl.’s Mem. at 11. 

The intrinsic evidence supports the limiting construction proposed by the plaintiff. Id. 

First, particularly instructive is asserted method claim 45 of the ’730 Patent. Claim 45 

distinguishes between the formation of an opening, i.e., “piercing,” and the movement through 

that opening. Claim 45 reads:

A method of establishing communication with the interior of a vessel in a human 

body, said method comprising the steps of providing a cannula having a tubular 

sheath enclosing a plurality of wires, piercing a side wall of the vessel in the human 

body with leading end portions of the sheath and the wires, thereafter, moving the 

sheath and the wires into the vessel through an opening formed during performance 

of said step of piercing the side wall of the vessel with the leading end portions of 

the sheath and wires, and, thereafter, expanding the portion of the sheath disposed 

in the vessel.

’730 Patent col. 25 l. 66 - col. 26 l. 9 (emphasis added). Claim 45 states that only after the 

cannula has “pierc[ed]” the side wall of a vessel, can the sheath and wires of the cannula then be 

“mov[ed]” through the vessel. Id. The use of the term “thereafter” indicates that the act of 

“piercing” the vessel is a separate step that precedes the actual movement of the sheath and wires 

of the cannula through the vessel. If “piercing” included movement of the sheath and wires of 

the cannula through a pre-existing hole, there would be no need to include the “thereafter” clause 

regarding the movement through the vessel. See, e.g., Digital-Vending Servs. Int’l, LLC v. 

Univ. of Phoenix, Inc., 672 F.3d 1270, 1275 (Fed. Cir. 2012) (explaining that it is important to 

construe “claim terms in light of the surrounding claim language, such that words in a claim are 

not rendered superfluous”); Lexion Med., LLC v. Northgate Techs., Inc., 641 F.3d 1352, 1356 

(Fed. Cir. 2011) (preferring “a claim interpretation that harmonizes the various elements of the 

claim to define a workable invention”).
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Second, the specification is likewise informative on the meaning of the terms “pierce”

and “piercing.” In the Summary of the Invention, the inventors explained that “pierce” means

the following:

In accordance with another feature of the invention, a leading end portion of the 

cannula is constructed to pierce human body tissue. This enables the cannula to 

form its own opening in body tissue as the cannula is inserted into the tissue.

 

’730 Patent col. 1 ll. 40-44 (emphasis added); see also id. col. 12 ll. 35-46, col. 16 ll. 8-15. Thus, 

in providing an overview of the claimed invention, the inventors used “pierce” to describe only 

the formation of an opening.3 See C.R. Bard, Inc. v. U.S. Surgical Corp., 388 F.3d 858, 864 

(Fed. Cir. 2004) (“Although a statement’s location is not determinative, the location can signal 

the likelihood that the statement will support a limiting definition of a claim term. Statements 

that describe the invention as a whole, rather than statements that describe only preferred 

embodiments, are more likely to support a limiting definition of a claim term.” (internal 

quotation marks omitted)); see also Bell Atl. Network Servs., Inc. v. Covad Commc’ns Grp., 

Inc., 262 F.3d 1258, 1268 (Fed. Cir. 2001) (“[T]he specification may define claim terms ‘by 

implication’ such that the meaning may be ‘found in or ascertained by a reading of the patent 

documents.’” (quoting Vitronics, 90 F.3d at 1582, 1584 n.6)); Phillips, 415 F.3d at 1316 (“The 

construction that stays true to the claim language and most naturally aligns with the patent’s 

 

3

 The proper construction of “pierce” becomes more apparent when the summary of the invention is read in 

conjunction with the background of the invention. See ResQNet.com, Inc. v. Lansa, Inc., 346 F.3d 1374, 1380-81 

(Fed. Cir. 2003) (explaining that although there is a “general rule that limitations should not be imported from the 

specification based solely on overcoming problems in the prior art,” there can be instances where “the specification, 

including those portions relating to extant problems in prior art, properly confirms the meaning of claim language”). 

In the background, the specification states that an obstacle in the prior art was that a “surgeon must first make an 

incision the full[-]depth of the cannula in order to insert the cannula” and so it was “desirable to provide cannulas 

which do not require a full[-]depth incision, or at least require only a needle-size entrance opening . . . .” ’730 

Patent col. 1 ll. 20-27. The specification then indicates that the claimed invention overcomes this obstacle because 

there is “a leading end portion of the cannula” that can “pierce human body tissue,” and thus “enable the cannula to 

form its own opening in body tissue as the cannula is inserted into the tissue.” Id. col. 1 ll. 40-44.
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description of the invention will be, in the end, the correct construction.” (quoting Renishaw 

PLC v. Marposs Societa’ Per Azioni, 158 F.3d 1243, 1250 (Fed. Cir. 1995))).

Also informative is Figure 26 in the specification, which is described as “a fragmentary 

schematic illustration depicting the relationship between the contracted cannula and a blood 

vessel after the cannula has pierced skin and body tissue adjacent to the blood vessel and prior to 

piercing of a side wall of the blood vessel.” ’730 Patent col. 2 ll. 56-60 (emphasis added). The 

specification goes on to explain in detail that

[a]fter penetrating body tissue 460 beneath the skin, the pointed end portion 446 of 

the cannula 400 pierces an imperforate surface area on a side wall 456 of a vein or 

blood vessel 458 (FIGS. 26, 27, and 28). Thus, the cannula 400 is used to initiate 

the formation of openings in the skin 454 and side wall 456 of the blood vessel 458 

at locations where there is no naturally occurring opening and without the necessity 

of making an incision prior to insertion of the cannula.

Id. col. 12 ll. 38-46 (emphasis added); see also id. col. 13 ll. 25-29 (“Since the cannula 400 is in 

the contracted condition of FIG. 22 when the side wall 456 of the blood vessel 458 is pierced, a 

relatively small opening 476 is formed in the side wall 456 of the blood vessel 456 by the 

cannula 400.” (emphasis added)). Together, these two descriptions of Figure 26 indicate that 

“pierce” means, in the context of the ’730 patent, to form an opening where none exists. 

The defendants, in a somewhat convoluted fashion, maintain that “pierce” must also 

encompass “push through” because while Figure 32 is said to illustrate the relationship between 

the cannula and the skin “immediately prior to piercing of the skin,” id. col. 3 ll. 15-20, it 

actually depicts the cannula as “already initiat[ing] . . . [an] opening in the skin,” and so it would 

be inconsistent for the Court to construe “pierce” or “piercing” to mean initiate or initiating the 
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formation of an opening.4 Defs.’ Mem. at 14. But Figure 32 does in fact show a cannula

immediately before it “pierces” the skin. To the extent there is any ambiguity as to what Figure 

32 depicts, it is clarified by the following explanation of Figure 32:

When the contracted cannula 400b is to be used to form an opening in skin 454b, 

the pointed end portion 484 of the wire core 410b engages the outer side surface 

464b of the skin before the sheath 402b engages the skin. This results in the sharp 

outer end portion 484 of the core 410b piercing the outer side surface 464b of the 

skin 454b before the skin is engaged by the sheath 402b. By piercing the outer side 

surface 464b of the skin 454b with the pointed end portion 484 of the core 410b, 

the forming of an opening in the skin by the contracted cannula 400b is facilitated. 

’730 Patent col. 15 ll. 17-26 (emphasis added). This passage confirms that Figure 32 depicts a 

cannula “immediately prior to piercing of the skin,” id. col. 3 ll. 15-20, because the cannula must 

first pierce the outer side surface of the skin “before” it can do the same to the skin, id. col. 15 ll.

17-26. 

Third, the plaintiff’s limiting construction is buttressed further by the prosecution history 

of the ’730 Patent. Bell Atl. Network Servs., 262 F.3d at 1268 (“The prosecution history is 

considered to determine whether or not there were any express representations made in obtaining 

the patent regarding the scope and meaning of the claims.” (citing Vitronics, 90 F.3d at 1582)); 

see also 800 Adept, Inc. v. Murex Sec., Ltd., 539 F.3d 1354, 1364-65 (Fed. Cir. 2008) 

(consulting prosecution history to “use . . . as support for the construction already discerned from 

the claim language”); Dunhall Pharm., Inc. v. Discus Dental, Inc., 243 F.3d 564, 2000 WL 

1608803, at *4 (Fed. Cir. 2000) (unpublished) (“The exchange between the patentee and the 

patent examiner often reveals representations made in obtaining the patent from the Patent and 

 

4

 The Court notes that the defendants’ position in their brief that Figure 32 demonstrates that “the patents are using 

the term ‘piercing’ to refer to pushing through . . . [and] not initiating the formation of an opening,” Defs.’ Mem. at 

14 (emphasis added), is somewhat inconsistent with the one they took during the Markman hearing, where they 

posited that “piercing” is broad and can mean “initiating an opening,” as well as “pushing through,” see, e.g., Hr’g 

Tr. at 56:15-18. 
10

Trademark Office . . . regarding the scope and meaning of claim terms, even those with 

definitions provided for in the specification.”). During the prosecution of the ’730 Patent, both 

the PTO examiner and the inventors shared a common understanding that “pierce” meant to 

“initiate an opening where there is no opening,” which is consistent with the plain language of 

asserted claim 45, as well as the specification. See Saffran v. Johnson & Johnson, 712 F.3d 549, 

559 (Fed. Cir. 2013) (limiting claim term because, inter alia, “the examiner shared” the 

patentee’s “stated view of the claimed device”), cert. denied, _ U.S. _, 134 S. Ct. 1023 (2014);

ERBE Elektromedizin GmbH v. Canady Tech. LLC, 629 F.3d 1278, 1286-87 (Fed. Cir. 2010) 

(“Arguments made during prosecution regarding the meaning of a claim term are relevant to the 

interpretation of that term in every claim of the patent absent a clear indication to the contrary.” 

(alteration and internal quotation marks omitted)); see also Honeywell Inc. v. Victor Co. of 

Japan, 298 F.3d 1317, 1324 (Fed. Cir. 2002) (highlighting significance of prosecution history in 

determining the meaning of claim terms). In rejecting a proposed claim, the examiner stated:

As to the rejection of claim 70 based upon Lee et al., the Lee et al. sheath 10 and 

wires 20 are moved through an opening (which was) formed in the side wall of the 

blood vessel during performance of the step of piercing a side wall of the blood 

vessel with the leading portion of the cannula as claimed. The phrase “during 

performance of the step of piercing a side wall of the blood vessel” refers to the 

time the opening was formed in the side wall of the blood vessel. 

’730 Patent Prosecution History (“’730 Patent History”), August 12, 1997 Examiner’s Answer 

(“Examiner Ans.”), J.A. at FH 1237-38.5 The inventors responded to the examiner’s statement 

by acknowledging that it was “correct in that the step of piercing a side wall of the blood vessel 

refers to the time the opening was formed in the side wall of the blood vessel.” ’730 Patent 

 

5

 The parties provided courtesy copies of file histories to various patents and applications, including those for the 

patents-in-suit. See J.A. In doing so, the parties designated their own Bates numbers to the file histories. For ease 

of reference, the Court will cite the Bates numbers assigned to the file histories by the parties.
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Prosecution History, September 2, 1997 Reply Brief (“Reply”), J.A. at FH 1531-32 (emphasis 

added); see also id. at FH 1532 (“[I]t is clear that the needle 11 of Lee et al. performs the 

function of piercing a side wall of the blood vessel at the time the opening is formed.”). And 

they highlighted for the examiner that “the statement [wa]s incorrect in stating the sheath 10 and 

wires 20 are moved through an opening in the side wall of a blood vessel during piercing of the 

side wall of the blood vessel with a leading end portion of the cannula as claimed.”6 Id. at FH 

1531-32 (second emphasis added); see also ’730 Patent Prosecution History, June 5, 1997 

Appeal Brief (“Appeal”), J.A. at FH 1270 (“Therefore, Lee et al. can not [sic] move a sheath and

wires through an opening formed in a side wall of a blood vessel during piercing of the blood 

vessel as set forth in claim 70.”); ’730 Patent Prosecution History, Reply, J.A. at FH 1532 (“The 

sheath 10 and wires 20 of Lee et al. are not moved through the opening in the side wall of the 

blood vessel during piercing of the side wall of the blood vessel . . . .”). Thus, the specification 

and the prosecution history of the ’730 Patent comport with the plain language of asserted claim 

 

6

 The defendants would have the Court ignore this exchange between the inventors and the PTO examiner because 

they were not discussing a claim at issue in this case. See Defs.’ Reply at 10 (noting that the communications 

concerned claim 14 of the ’730 Patent). But substantially similar claim language is found in both claims 14 and 45 

of the ’730 Patent, compare ’730 Patent col. 21 ll. 43-51 (“piercing a side wall of the blood vessel with a leading end 

portion of the cannula, moving the sheath and the plurality wires of the cannula through an opening, formed in the 

side wall of the blood vessel during performance of said step of piercing a side wall of the blood vessel with the 

leading end portion of the cannula), with id. col. 26 ll. 2-8 (“piercing a side wall of the vessel in the human body 

with leading end portions of the sheath and the wires, thereafter, moving the sheath and the wires into the vessel 

through an opening formed during performance of said step of piercing the side wall of the vessel with the leading 

end portions of the sheath and wires), and claim terms must be construed consistently within the patent, see, e.g., 

Frank’s Casing Crew & Rental Tools, Inc. v. Weatherford Int’l, Inc., 389 F.3d 1370, 1377 (Fed. Cir. 2004) (“This 

court recognizes that the principle of consistency within claims operates within the framework of related claims.”). 

In any event, claim 14 also supports the notion that “piercing” and “pushing through” an opening are not one and the 

same. ’730 Patent col. 21 ll. 43-51 (“piercing a side wall of the blood vessel with a leading end portion of the 

cannula, moving the sheath and the plurality wires of the cannula through an opening, formed in the side wall of the 

blood vessel during performance of said step of piercing a side wall of the blood vessel with the leading end portion 

of the cannula” (emphasis added)). 
12

45, demonstrating that “pierce” means to “initiate formation of an opening where there is no 

opening.”7

Also relevant is the prosecution history of U.S. Patent Application No. 11/169/475 (“’475 

Application”), an application that is related to the patents-in-suit, as they all belong to the same 

patent family.8 In response to an office action, and similar to the prosecution of the ’730 Patent, 

the PTO examiner’s understanding of the term “piercing” was corrected by the inventor. The 

examiner was told the following:

In the Final Office Action, “piercing” is interpreted to be “penetrating into or 

running through.” Applicant disagrees with this interpretation. . . . [A]s used in the 

specification and consistent with the ordinary dictionary definition, “piercing” as 

set forth in the claims means to form an opening or hole.”

 

7

 Although the defendants concede this line of reasoning for the ’730 Patent, see Hr’g Tr. at 106:13-107:1, they 

argue that the term “pierce” is nevertheless entitled to a broad construction because other claims in related patents, 

such as claim one of the ’240 Patent, purportedly use “pierce” more broadly than claim 45 of the ’730 Patent, see id.

at 107:1-3; see also id. at 59:4-24. The defendants’ contention is neither compelling nor consistent with the case 

authority that instructs the Court to construe terms consistently across patents in the same family. See, e.g.,

Microsoft Corp., 357 F.3d at 1349-50; Omega Eng’g, Inc, v. Raytek Corp., 334 F.3d 1314, 1334 (Fed. Cir. 2003)

(“[W]e presume, unless otherwise compelled, that the same claim term in the same patent or related patents carries 

the same construed meaning.”). If the Court embraced the broader meaning of “pierce,” it would undoubtedly 

render certain claim terms superfluous in the ’730 Patent, which would also be contrary to case authority. See, e.g., 

Digital-Vending, 672 F.3d at 1275. And as the Court will soon explain, “pierce” is not used broadly in other claims

of related patents, as it otherwise refers to the initiation of an opening where there is none. 

8

 The defendants claim that the ’475 Application is “irrelevant” to the Court’s analysis of the terms “pierce” and 

“piercing” because the subject matter of the application is completely “different” than the subject matter of the 

patents-in-suit. See Defs.’ Reply at 10-11. But that does not appear to be the case. The subject matter of both the 

’475 Application and the patents-in-suit are related, as there is no dispute that the ’475 Application and the patentsin-suit belong to the same patent family. See, e.g., Hr’g Tr. at 96:1-97:19 (plaintiff contending that ’475 Application 

is part of the same family as the patents-in-suit); id. at 104:1-109:3 (no dispute); see also ’475 Application, June 29, 

2005 BIB Data Sheet (“Data Sheet”), J.A. at FH 7206 (showing that ’475 Application bears relation to the patentsin-suit). 

Further, the applicant went so far as to acknowledge that the ’611 Patent—the parent patent of the patentsin-suit—was “material to the examination” of the ’475 Application. ’475 Application, June 29, 2005 Information 

Disclosure Statement Pursuant to 37 C.F.R. § 1.56 (“IDS”), J.A. at FH 7297, 7300. Thus, the Court cannot 

disregard the ’475 Application when construing the disputed claim terms. See, e.g., Capital Mach. Co. v. Miller 

Veneers, Inc., 524 F. App’x 644, 649 (Fed. Cir. 2013) (holding “that the prosecution history regarding a claim term 

is pertinent when interpreting the same term in both later-issued and earlier-issued patents in the same family”); 

Ventana Med. Sys., Inc. v. Biogenex Labs., Inc., 473 F.3d 1173, 1184 (Fed. Cir. 2006) (holding that “statements 

made by the inventor during continued prosecution of a related patent application can, in some circumstances, be 

relevant to claim construction”); see also V-Formation, Inc. v. Benetton Grp. SpA, 401 F.3d 1307, 1311 (Fed. Cir. 

2005) (“This court has established that ‘prior art cited in a patent or cited in the prosecution history of the patent 

constitutes intrinsic evidence.’” (quoting Kumar v. Ovonic Battery Co., 351 F.3d 1364, 1368 (Fed. Cir. 2003))).
13

 

’475 Application, September 17, 2009 Response to Final Office Action and Request for 

Continued Examination Pursuant to 37 C.F.R. § 1.114 (“Response”), J.A. at FH 7149-50. The 

plaintiff’s narrow construction of “pierce” and “piercing” is therefore supported by compelling 

intrinsic evidence.

The Court is unmoved by the defendants’ efforts to undermine the intrinsic evidence, 

which strongly demonstrates that their construction is overbroad and incorrect. First, the 

defendants’ invoke the doctrine of claim differentiation. Defs.’ Mem. at 12. Specifically, they 

argue that because independent claim 23 of the ’240 Patent has the following limitation—“said 

cannula having a pointed end portion to pierce body tissue,” and because its dependent claim 25 

further adds the following limitation—“during insertion of said pointed end portion of said 

cannula through an imperforate surface on body tissue,” then the term “pierce” must include 

passing or moving through a perforate surface, otherwise there would be no need to add the word 

“imperforate” to dependent claim 25. Id. The defendants’ claim differentiation argument has 

little appeal. 

Claim differentiation is the “presumption that each claim in a patent has a different 

scope.” Curtiss-Wright Flow Control Corp. v. Velan, Inc., 438 F.3d 1374, 1380 (Fed. Cir. 2006)

(internal quotation marks omitted). It “refers to the presumption that an independent claim 

should not be construed as requiring a limitation added by a dependent claim.” Id. The 

presumption is “especially strong” where “the limitation in dispute is the only meaningful 

difference between an independent and dependent claim, and one party is urging that the 

limitation in the dependent claim should be read into the independent claim.” SunRace Roots 

Enter. Co. v. SRAM Corp., 336 F.3d 1298, 1303 (Fed. Cir. 2003) (emphasis added) (citing 

Ecolab Inc. v. Paraclipse, Inc., 285 F.3d 1362, 1375 (Fed. Cir. 2002)). This presumption, 
14

however, is rebuttable. Id. (explaining that the presence of a dependent claim that adds a 

particular limitation raises a rebuttable presumption that the limitation at issue is absent from the 

independent claim).

Here, although reading independent claim 23 and dependent claim 25 of the ’240 Patent 

in conjunction could potentially impose an additional limitation on the term “pierce,” such that 

the term is as broad as the defendants suggest, there is an additional limitation unrelated to the 

term “pierce” that is found in dependent claim 25. See ’240 Patent col. 23 ll. 14-18 (“wherein 

said sheath has an outer end surface which engages body tissue at locations between adjacent 

wires”). And where, as here, the dependent claim has multiple limitations, claim differentiation 

arguments are routinely discounted in claim construction analyses. See, e.g, Telemac Cellular 

Corp. v. Topp Telecom, Inc., 247 F.3d 1316, 1326 (Fed. Cir. 2001) (noting that because the 

dependent claim “embraces additional limitations not encompassed within” the independent 

claim, the claim differentiation argument was unpersuasive); see also GeoTag, Inc. v. Frontier 

Commc’ns Corp., No. 10-cv-265(JRG), 2013 WL 693852, at *10 (E.D. Tex. Feb. 26, 2013) 

(reasoning that claim differentiation argument is inapplicable where the dependent claim at issue 

contains more than just the limitation in dispute); Premier Int’l Assocs. v. Apple Computer, Inc., 

512 F. Supp. 2d 737, 743 (E.D. Tex. 2007) (finding that “claim differentiation argument fail[ed]

because the relevant dependent claims . . . add[ed] additional limitations other than the 

limitation” in dispute). Even if the doctrine of claim differentiation assisted the defendants in 

creating the rebuttable presumption, the presumption is defeated by the aforementioned intrinsic 

evidence. Marine Polymer Techs., Inc. v. HemCon, Inc., 672 F.3d 1350, 1359 (Fed. Cir. 2012) 

(en banc) (“[C]laim differentiation is ‘not a hard and fast rule and will be overcome by a 

contrary construction dictated by the written description or prosecution history.’” (quoting 
15

Seachange Int’l, Inc. v. C-COR, Inc., 413 F.3d 1361, 1369 (Fed. Cir. 2005)); InterDigital 

Commc’ns, LLC v. Int’l Trade Comm’n, 690 F.3d 1318, 1324 (Fed. Cir. 2012), on reh’g, 707 

F.3d 1295 (Fed. Cir. 2013) (“[T]he doctrine of claim differentiation creates only a presumption, 

which can be overcome by strong contrary evidence such as definitional language in the patent 

or a clear disavowal of claim scope . . . .”); Backyard Nature Prods., Inc. v. Woodlink, Ltd., 81 F. 

App’x 729, 731-32 (Fed. Cir. 2003) (finding intrinsic evidence overcame presumption created by 

claim differentiation). 

The defendants also direct the Court’s attention to certain portions of the ’240 Patent 

specification where they contend “pierce” entails activities in addition to the formation of an 

opening where none existed because “the specification distinguishes between initiating an 

opening and ‘piercing.’” Defs.’ Mem. at 12-13. In light of the intrinsic evidence outlined

earlier, however, the Court does not read these portions of the specification in the same manner 

as the defendants. Rather, they demonstrate that references to the forming of an opening and 

“pierce” or “piercing” are used to describe the same activity. See Curtiss-Wright, 438 F.3d at 

1380 (“[C]laim drafters can also use different terms to define the exact same subject matter.”); 

see also Baran v. Med. Device Techs., Inc., 616 F.3d 1309, 1316 (Fed. Cir. 2010) (explaining 

that the “implication” that different terms have different meanings can be overcome by evidence 

to the contrary); Edwards Lifesciences, 582 F.3d at 1329 (“The interchangeable use of the two 

terms is akin to a definition equating the two.”); Advanced Cardiovascular Sys., Inc. v. 

Medtronic Vascular, Inc., 182 F. App’x 994, 997 (Fed. Cir. 2006).

Lastly, the Court finds it unnecessary to consult extrinsic evidence in construing the 

terms “pierce” and “piercing,” as the intrinsic evidence clearly demonstrates that the terms are
16

not entitled to the broad construction proposed by the defendants.9 E.g., Vitronics, 90 F.3d at 

1583 (“In those cases where the public record unambiguously describes the scope of the patented 

invention, reliance on any extrinsic evidence is improper. The claims, specification, and file 

history, rather than extrinsic evidence, constitute the public record of the patentee’s claim, a 

record on which the public is entitled to rely.”). In short, the Court adopts the plaintiff’s 

construction of the terms “pierce” and “piercing,” which is to “initiate” or “initiating” the 

“formation of an opening where there is no opening.” 

2. Wires Having Longitudinal Central Axes Which Are Disposed in a 

Parallel Relationship

Disputed Terms Plaintiff’s Proposal Defendants’ Proposal

Wires having longitudinal 

central axes which are 

disposed in a parallel 

relationship

’499 Patent (claim 23)

Wires that have parallel central axes

extending in the length of the wires—

this excludes tubular braids

At least two wires that 

have parallel central 

axes extending in the 

length of the wires10

The heart of the parties’ conflicting positions here is whether the scope of the disputed 

term, found only in asserted claim 23 of the ’499 Patent, encompasses wires in the orientation of 

tubular braids. See Pl.’s Mem. at 25. Otherwise, their proposed constructions are nearly 

identical. See Hr’g Tr. at 4:20-5:9, 20:2-16, 110:17-111:20, 112:23-113:11; see also Hr’g Tr. at 

111:3-10 (suggesting scope of term is disputed, but not the meaning). 

The determination of claim scope is a function for the Court. See O2 Micro Int’l Ltd. v. 

Beyond Innovation Tech. Co., 521 F.3d 1351, 1361-62 (Fed. Cir. 2008) (explaining that where 

 

9

 The Court need not rely on extrinsic evidence for any of the disputed claims terms, as the intrinsic evidence 

clearly sheds light on their proper constructions. 

10

 The defendants’ proposed construction was amended at the claim construction hearing. See Hr’g Tr. at 111:3-25 

(defendants’ counsel stating that “at this point, we propose a definition that’s almost the same as [the plaintiff’s 

definition], the only difference is we add the words ‘at least two’ before wires . . . . And we get rid of the last part, 

which is this excludes a tubular braid.”); id. at 113:1-11.
17

parties agree on a “common meaning” of a disputed claim term, “but then proceed[] to dispute 

the scope of that claim term . . .[,] claim construction requires the court to determine what claim

scope is appropriate in the context of the patents-in-suit. . . . When the parties present a 

fundamental dispute regarding the scope of a claim term, it is the court’s duty to resolve it.”). In 

accordance with this duty, scrutiny by the Court of the ’499 Patent prosecution history reveals

that the inventors disavowed tubular braids from their claimed invention. See World Class Tech. 

Corp. v. Ormco Corp., 769 F.3d 1120, 1123 (Fed. Cir. 2014) (explaining that although claim 

terms are generally given “their ordinary meaning in the context of the claim and the whole 

patent document; the specification particularly, but also the prosecution history, informs the 

determination of claim meaning in context, including by resolving ambiguities; and even if the 

meaning is plain on the face of the claim language, the patentee can, by acting with sufficient 

clarity, disclaim such a plain meaning or prescribe a special definition.”); see also Dunhall, 2000 

WL 1608803, at *4 (“[W]hether or not a specific definition of a term is present in the 

specification, ‘the prosecution history (or file wrapper) limits the interpretation of claims so as to 

exclude any interpretation that may have been disclaimed or disavowed during prosecution in 

order to obtain claim allowance.’” (quoting Standard Oil Co. v. Am. Cyanamid Co., 774 F.2d 

448, 452 (Fed. Cir. 1985))). 

During the prosecution of the ’499 Patent, asserted claim 23 was initially rejected by the 

PTO examiner as being “unpatentable over Fogarty et al. in view of Leckrone.”

11

 ’499 Patent 

Prosecution History (“’499 Patent History”), November 15, 1996 Final Office Action (“Office 

Action”), J.A. at FH 0713. The inventors appealed to the Board of Patent Appeals and 

 

11

 Claim 23 began as claim 34 when the inventor prosecuted the patent. See ’499 Patent Prosecution History (“’499 

Patent History”), October 7, 1996 Amendment (“Amendment”), J.A. at FH 0687. 
18

Interferences (“Appeals Board”) in hopes of overturning that rejection. See ’499 Patent History, 

December 9, 1996 Notice of Appeal (“Notice”), J.A. at FH 0721. In their appeal, the inventors 

distinguished claim 23 from the prior art and brought to the Appeals Board’s attention that:

Claim [23] further defines over the patent to Fogarty et al. and Leckrone by setting 

forth the wires as having longitudinal central axes which are disposed in a parallel

relationship when the sheath is in the contracted condition and when the sheath is 

in the expanded condition. The tubular braid 38 is illustrated in Fig. 3 of the patent 

to Fogarty et al. It is clear that the monofilaments or wires 42 in the tubular braid 

38 of Fogarty et al. do not have longitudinal central axes which are disposed in a 

parallel relationship.[12] 

’499 Patent History, January 7, 1997 Appellant’s Brief (“App. Br.”), J.A. at FH 0751; see also

’499 Patent History, October 7, 1996 Amendment (“Amendment”), J.A. at FH 0701 (“Claim 34 

defines over the prior art by setting forth the plurality of wires which are enclosed by the sheath 

and are disposed in a longitudinally extending array along an inner side of the sheath. . . . The 

wires have longitudinal central axes which are disposed in a parallel relationship when the sheath 

is in the contracted condition and when the sheath is in the expanded condition. In the patents to 

Fogarty et al. and Gold et al., the wires do not have longitudinal central axes which are disposed 

in a parallel relationship.”); Defs.’ Mem. at 19 (explaining that “the patent to Gold et al.” is an 

 

12

 The defendants initially contended that the emphasis on “parallel” was a “mistake” during the prosecution of the 

’499 Patent, Defs.’ Reply at 19, but then “stepped back” from that argument at the claim construction hearing, Hr’g 

Tr. at 132:14. This was a wise strategy by the defendants, because to the extent the revisionist history is accurate, 

the defendants must live with the alleged “mistake.” See Springs Window Fashions LP v. Novo Indus., L.P., 323 

F.3d 989, 995 (Fed. Cir. 2003) (“In this case, a reasonable competitor, reviewing the amendments and statements 

made by the applicant to distinguish the claimed invention from [the prior art], would conclude that the claimed 

invention did not cover a device like [the one in the prior art]. If the applicant mistakenly disclaimed coverage of 

the claimed invention, then the applicant should have amended the file to reflect the error, as the applicant is the 

party in the best position to do so.”); Hockerson-Halberstadt, Inc. v. Avia Grp. Int’l, Inc., 222 F.3d 951, 956-57 

(Fed. Cir. 2000) (refusing to excuse “erroneous” statements made during prosecution that lead to disclaimers 

because to entertain such an argument would be commensurate “to a request for a mulligan that would erase from 

the prosecution history the inventor’s disavowal of a particular aspect of a claim term’s meaning” and “inimical to 

the public notice function provided by the prosecution history,” as “[t]he prosecution history constitutes a public 

record of the patentee’s representations concerning the scope and meaning of the claims, and competitors are 

entitled to rely on those representations when ascertaining the degree of lawful conduct, such as designing around 

the claimed invention.”).
19

example of a “tubular braid”). After considering the inventors’ explanation as to how claim 23 

defined over the prior art, the examiner withdrew the rejection. See ’499 Patent History, 

February 5, 1997 Examiner’s Answer (“Answer”) at FH 0820. This is a clear and unambiguous 

disavowal of claim scope. E.g., Saffran, 712 F.3d at 559.

The defendants’ primary response is to invoke the “exacting” standard necessary to prove

prosecution disclaimer, Thorner, 669 F.3d at 1366, and insist that it has not been satisfied, see

Defs.’ Mem. at 18-20, 23. But the inventors were not required to state precisely that “tubular 

braids are not within the scope of the invention” during the prosecution of the patent, id. at 23 

(emphasis omitted), see also Defs.’ Reply at 18, in order for the Court to find that they 

sufficiently disavowed tubular braids from their claimed invention, Saffran, 712 F.3d at 559 

(“[A]pplicants rarely submit affirmative disclaimers along the lines of ‘I hereby disclaim the 

following . . .’ during prosecution and need not do so to meet the applicable standard.”); see also

Ballard Med. Prods. v. Allegiance Healthcare Corp., 268 F.3d 1352, 1361 (Fed. Cir. 2001) 

(“[T]he scope of the disclaimer must be determined by what a competitor would reasonably 

believe that the applicant had surrendered.” (internal quotation marks omitted)). The inventors’ 

distinction of the claimed invention over the prior art was sufficient for the prosecution 

disclaimer.13 See Saffran, 712 F.3d at 559 (“[A]n applicant’s argument that a prior art reference 

is distinguishable on a particular ground can serve as a disclaimer of claim scope even if the 

 

13

 The defendants maintain that there is no clear and unmistakable disclaimer because the inventors never explain 

why the tubular braids in the patent to Fogarty et al. are not wires that have longitudinal central axes, which are 

disposed of in a parallel relationship. See Hr’g Tr. at 114:15-117:25. But the inventors were not required to provide 

a rationale for why the prior art is distinguishable from the claimed invention, so long as they did distinguish it. See

Ekchian v. Home Depot, Inc., 104 F.3d 1299, 1304 (Fed. Cir. 1997) (“[B]y distinguishing the claimed invention 

over the prior art, an applicant is indicating what the claims do not cover, he is by implication surrendering such 

protection.”); All Dental Prodx, LLC v. Advantage Dental Prods., Inc., 309 F.3d 774, 780 (Fed. Cir. 2002) (finding 

disclaimer of shape where applicant distinguished over prior art by explaining that shape found in prior art was not

shape in the claimed invention).
20

applicant distinguishes the reference on other grounds as well.” (internal quotation marks

omitted)); see also Uship Intellectual Props., LLC v. United States, 714 F.3d 1311, 1315 (Fed. 

Cir. 2013) (noting that case authority “broadly state[s] that an applicant’s statements to the PTO 

characterizing its invention may give rise to a prosecution disclaimer”). Therefore, the Court 

adopts the plaintiff’s construction of the disputed term, i.e., “wires that have parallel central axes 

extending in the length of the wires,”14 and finds that the scope of the term does not encompass 

“tubular braids.”

3. Expandable/Expanded/Expanding

Disputed Terms Plaintiff’s Proposal Defendants’ 

Proposal

Expandable/Expanded/Expanding

’240 Patent (claims 1, 8, 12, 13, 15-

16)

’499 Patent (claim 23)

’730 Patent (claims 45-47, 49, 55, 57)

Able to be 

stretched/stretched/stretching, 

without breaking, to a larger 

cross-sectional area

Plain and ordinary 

meaning

The parties dispute these derivatives of the word expand. While the defendants propose 

the plain and ordinary meaning for the proper construction of these terms, Defs.’ Mem. at 24, the 

plaintiff seeks to narrow the defendants’ construction, such that the terms only encompass 

“stretching” (or some derivative of this word) “without breaking, to a larger cross-sectional 

area,” Pl.’s Mem. at 33. But the plaintiff’s proposed construction is convoluted and without 

intrinsic support, so the Court will reject it for several reasons. 

First, the notion that the expandable cannula must have a “larger cross-sectional area” 

upon expansion is already captured by other terms in the asserted claims. E.g., ’240 Patent col.

20 ll. 2-19 (“said expandable cannula comprising a longitudinally extending tubular sheath 

 

14

 The defendants’ desire to include the words “at least two” before the word “wires” is unnecessary, as the term 

“wires” itself connotes “at least two.” See Hr’g Tr. at 111:11-20. Because “wires” inherently means at least two 

wires, it would be redundant to have the words “at least two” precede the word “wires.” 
21

formed of a material capable of being extended from a condition in which a longitudinally 

extending passage through the tubular sheath has a relatively small cross sectional size to a 

condition in which the passage has a relatively large cross sectional size upon expansion of said 

cannula from the contracted condition to the expanded condition” (emphasis added)); ’499 Patent 

col. 22 ll. 9-13 (“said longitudinally extending array of wires having a relatively small cross 

sectional size when said sheath is in the contracted condition and a relatively large cross 

sectional size when said sheath is in the expanded condition” (emphasis added)). Thus, the 

plaintiff’s proposed construction, which includes other claim terms, introduces redundancies into 

the asserted claims. See Rozbicki v. Chiang, _ F. App’x _, _, 2014 WL 6434870, at *5 (Fed. Cir. 

2014) (rejecting claim construction that did “not make any sense” or would “at least be 

redundant”); Digital-Vending Servs. Int’l, LLC v. Univ. of Phx., Inc., 672 F.3d 1270, 1275 (Fed. 

Cir. 2012) (“[C]laims are interpreted with an eye toward giving effect to all terms in the claim.

In Phillips, [415 F.3d at 1314,] this court reinforced the importance of construing claim terms in 

light of the surrounding claim language, such that words in a claim are not rendered 

superfluous.” (internal citation and quotation marks omitted)); IGT v. Bally Gaming Int’l, 

Inc., 659 F.3d 1109, 1117 (Fed. Cir. 2011) (“Extracting a single word from a claim divorced 

from the surrounding limitations can lead construction astray.”); Lexion Med., 641 F.3d at 1356 

(preferring “a claim interpretation that harmonizes the various elements of the claim to define a 

workable invention”).

Second, the plaintiff fails to cite any intrinsic evidence that supports importing a “without 

breaking” limitation into the disputed term. While the plaintiff points out that the specification 

teaches that certain “portions” of the expandable cannula are “resilient,” permitting it to return to 

its contracted position after expansion, Pl.’s Mem. at 35, “resilient” and “without breaking” are 
22

not necessarily synonymous. And the plaintiff has cited no aspect of the specification or the 

prosecution history showing otherwise. The plaintiff appears to be attempting to narrow the 

scope of the claimed inventions through its proposed construction, so as to require the 

expandable cannulas to not only expand, but also retract to its unexpanded condition after 

expansion. See id. But the Court cannot accept the plaintiff’s construction as it would be 

impermissibly reading into the claims a limitation from the preferred embodiments. See, 

e.g., Callicrate v. Wadsworth Mfg., Inc., 427 F.3d 1361, 1368 (Fed. Cir. 2005) (importing 

limitation from single embodiment was error); Phillips, 415 F.3d at 1323 (noting that limitations 

should not be imported from the specification into the claims). The Court, therefore, adopts the 

plain and ordinary meaning of the terms “expandable/expanded/expanding.”

4. Leading End Portion(s)/Pointed End Portion

Disputed Terms Plaintiff’s Proposal Defendants’ Proposal

Leading End Portion(s)

’730 Patent (claims 45, 51, 57)

Sections including the distal-most 

sharp tips

Plain and ordinary 

meaning

Pointed end portion

’240 Patent (claims 1, 15)

’499 Patent (claim 28)

Section including a sharp tip Plain and ordinary 

meaning, or tapered end 

part

Close examination of the parties’ disputes regarding these terms reveals that the crux of 

these disputes is whether these terms should be construed in a manner such that the “leading end 

portion” of the cannula or the “pointed end portion” of the cannula is “sharp,” and thus capable 

of either cutting or severing body tissue. See Pl.’s Mem. at 38, 41. The patents-in-suit broadly 

claim leading end portions or pointed end portions of the cannula that can pierce body tissue. 

E.g., ’730 Patent col. 26 ll. 2-4; ’240 Patent col. 20 ll. 16-19; ’499 Patent col. 22 ll. 39-42. 

Neither the claims nor the specifications of the patents-in-suit, however, explicitly place 

limitations on whether these portions of the cannula must be sharp. Although the specifications
23

of the patents-in-suit cited by the plaintiff discuss the use of sharp leading end portions and 

pointed end portions to pierce body tissue, the discussion is in the context of preferred 

embodiments. See Pl.’s Mem. at 40, 42. And contrary to settled law, the plaintiff has 

improperly imported limitations from the specifications of the patents-in-suit again.15 See, 

e.g., Callicrate, 427 F.3d at 1368; Phillips, 415 F.3d at 1323. Thus, the Court agrees with the 

defendants that these terms should be given their plain and ordinary meaning. 

5. Integrally Formed as One Piece

Disputed Terms Plaintiff’s Proposal Defendants’ Proposal

Integrally formed as one 

piece

’240 Patent (claim 8)

Made together from the same material Formed as a unit with 

other parts

The parties’ proposed constructions of these terms are vastly different. Essentially, the 

plaintiff’s construction would require that the wires and the sheath of the cannula be made from 

the same material, i.e., same composition, while the defendants’ construction would only require 

that the wires and the sheath be formed as a unit, i.e., that the wires and the sheath be integrated. 

 

15

 The plaintiff appears to conflate the issue of claim construction with others issues that are not currently before the 

Court: (1) infringement and (2) enablement. First, in light of the fact that the asserted claims require the ability to

“pierce” before there can be infringement of these claims, it is difficult to see how the plaintiff’s accused products 

can infringe the asserted claims if the accused products are unable to “pierce” body tissue as the claims require. 

Whether an accused product with either a “leading end portion” or “pointed end portion” that is either “dull” or 

“blunt” can “pierce” body tissue as required in the asserted claims is a question of fact and invites the Court to 

engage in an infringement analysis that cannot be made at this juncture in the case. See, e.g., ADC Telecomms., 

Inc. v. Switchcraft, Inc., 281 F. App’x 989, 992 (Fed. Cir. 2008) (reasoning that a factual question of infringement 

existed as to whether a particular limitation was covered by the claims (citing Union Carbide Chems. & Plastics 

Tech. Corp. v. Shell Oil Co., 425 F.3d 1366, 1377 (Fed. Cir. 2005))). And the defendants are “not arguing [that] a 

claim requiring a ‘pointed end portion’ covers a device with a blunt end.” Defs.’ Reply at 23. 

Second, whether the specifications “teach” that “dull” “leading end portions” and “pointed end portions” 

can cut or sever body tissue, Pl.’s Mem. at 40, is an enablement question that is also not currently before the Court, 

see, e.g., Ormco Corp. v. Align Tech., Inc., 498 F.3d 1307, 1318 (Fed. Cir. 2007) (explaining that a patent is invalid 

for lack of enablement where the “challenged patent fails to teach one of ordinary skill in the art how to make the 

invention”); Hill-Rom Servs., Inc. v. Stryker Corp., 755 F.3d 1367, 1374 (Fed. Cir. 2014) (“Courts should be 

cautious not to allow claim construction to morph into a mini-trial on validity. Claim terms should be given their 

plain and ordinary meaning to one of skill in the art at the relevant time and cannot be rewritten by the courts to save 

their validity.”), cert. denied, _ U.S. _, 135 S. Ct. 719 (2014).
24

Review of the intrinsic evidence strongly suggests that for several reasons the defendants’ 

construction must prevail over the plaintiff’s construction, which again seeks to import 

limitations from the specification of the ’240 Patent. 

First, according to the language of asserted claim 8 of the ’240 Patent, the purpose of 

having the wires and the sheath “integrally formed” is “to interconnect” them. ’240 Patent col.

20 ll. 51-54. This language is consistent with the defendants’ proposed construction, more so 

than the plaintiff’s proposal, as the “formation” of the wires and the sheath as “a unit” would 

ensure that the wires and sheath are interconnected. And second, portions of the ’240 Patent 

specification also reveal that “integrally formed” alludes to the integration, as opposed to the 

composition, of the wires and the sheath. For example, the specification states:

The elastic sheath 18 is preferably secured to the wires 16 at both proximal and 

distal ends, to prevent the sheath’s sliding off the wires during insertion and 

removal of the cannula 10. Rubber cement or cyanoacrylate or a similar adhesive 

can be used to bond the sheath 18 to the wires 16 as shown schematically at 24.

Id. col. 4 ll. 8-13 (emphasis added). And as another example, the specification notes: 

Since the jackets 412 are integrally formed as one piece with the sheath 402, there 

is no precise line of demarcation between the jackets and the sheath. However, the 

jackets 412 extend inward from the sheath 402 toward the central axis 418 of the 

cannula 400 and cooperate with the sheath to enclose each of the cores 410. If 

desired, the jackets 412 could extend completely around the cores 410. 

Id. col. 9. ll. 31-38 (emphasis added); see also id. col. 9 ll. 2-5 (“Since the jackets 412 are 

integrally formed as one piece with the sheath 402, the wires 404 are maintained in a parallel 

relationship with the longitudinal central axis 418 of the cannula 400.” (emphasis added); id. col.

15 ll. 5-7 (“The jacket 412b is integrally formed as one piece with the sheath 402b and 

cooperates with the sheath to enclose one of the cores 410b.” (emphasis added)). Because the 
25

intrinsic evidence supports the defendants’ proposed construction, the Court construes the phrase 

“integrally formed” to mean “formed as a unit.”16

IV. CONCLUSION

For the foregoing reasons, the Court construes the disputed claim terms in this case in the 

manner set forth above.17

SO ORDERED this 25th day of February, 2015.

REGGIE B. WALTON

United States District Judge

 

16

 Adopting additional words from the defendants’ proposed construction—“with other parts”—is unnecessary.

17

 The Court has contemporaneously issued an Order consistent with this Memorandum Opinion.