Source: http://www.google.com/patents/US5840063?dq=4182933
Timestamp: 2014-07-11 19:22:32
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Patent US5840063 - Septumless implantable treatment material device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA septumless implantable access device suitable for delivering a liquid medication to a site remote from the site of implantation is disclosed. The device includes a biocompatible housing having at least one resealable entry port and a cylindrical reservoir in communication with the entry port. An outlet...http://www.google.com/patents/US5840063?utm_source=gb-gplus-sharePatent US5840063 - Septumless implantable treatment material deviceAdvanced Patent SearchPublication numberUS5840063 APublication typeGrantApplication numberUS 08/868,389Publication dateNov 24, 1998Filing dateJun 3, 1997Priority dateJun 7, 1995Fee statusPaidAlso published asCA2221847A1, EP0830172A1, US5702363, WO1996040358A1Publication number08868389, 868389, US 5840063 A, US 5840063A, US-A-5840063, US5840063 A, US5840063AInventorsChristopher J. FlahertyOriginal AssigneeProgrammable Pump Technologies, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (24), Non-Patent Citations (6), Referenced by (23), Classifications (9), Legal Events (9) External Links: USPTO, USPTO Assignment, EspacenetSeptumless implantable treatment material deviceUS 5840063 AAbstract A septumless implantable access device suitable for delivering a liquid medication to a site remote from the site of implantation is disclosed. The device includes a biocompatible housing having at least one resealable entry port and a cylindrical reservoir in communication with the entry port. An outlet extends from the reservoir to the housing. A filter assembly is disposed within the reservoir for removing particulate material from fluid injected into the entry port. The implantable access device may also include an infusion pump apparatus coupled to the access device.
What is claimed is: 1. An implantable access device comprising:A. a biocompatible housing having at least one septumless resealable entry port and an internal substantially cylindrical reservoir in the housing, said reservoir being defined by a lateral surface extending about a central axis and a bottom surface and being in communication with said entry port; B. an outlet extending through said housing along an outlet channel axis from a point on said lateral surface of said reservoir, and C. a filter assembly disposed in said reservoir, said filter assembly including a substantially cylindrical fluid permeable first wall interior to and spaced apart from said lateral surface of said reservoir, said first wall establishing a first annular chamber between said first wall and said lateral surface and a first reservoir chamber interior to said first wall, said first annular chamber and said first reservoir chamber being in fluid communication only through said first wall, and said outlet being in direct fluid communication with said first annular chamber. 2. The implantable access device according to claim 1 further comprising a cannula extending at a first end thereof from said outlet and having a second end thereof adapted to receive a catheter, said outlet cannula further defining an internal channel extending from said first end, along said channel axis to said second end.
3. The implantable access device according to claim 1, wherein said filter assembly further includes:a substantially cylindrical fluid permeable second wall interior to and spaced apart from said first wall, said second wall establishing within said first reservoir chamber:i. a second annular chamber between said second wall and said first wall; and ii. at least one reservoir sub-chamber interior to said second wall; said second annular chamber being in fluid communication with said reservoir sub-chamber only through said second wall and being in fluid communication with said first annular chamber only through said first wall. 4. The implantable access device according to claim 3 wherein said filter assembly includes a substrate extending about said central axis, said substrate forming said second wall and supporting said first wall.
11. The device according to claim 1 wherein said outlet is adapted to be connected to a catheter, a graft, or an implanted medical device.
12. The implantable access device of claim 1, further comprising an infusion pump apparatus, said infusion pump apparatus including an input, an output and a pump for selectively driving fluid entering said input to exit said output, and coupling means for coupling at least one of said input and said output of said pump apparatus to said implantable access device.
13. The implantable access device of claim 12, wherein said coupling means includes means for coupling said outlet port of said implantable access device to said input of said infusion pump apparatus.
14. The implantable access device of claim 12, wherein said implantable access device and said infusion pump apparatus are contained within a common housing.
This is a divisional of application Ser. No. 08/475,773 filed on Jun. 7, 1995 now U.S. Pat. No. 5,702,363.
BACKGROUND OF THE INVENTION Implantable devices have been developed for infusion or delivery of medications into a specific body site, for example, to avoid repeated intravenous, intrathecal, or epidural injections and thereby to minimize discomfort to a patient. Such devices generally include a housing containing an internal reservoir or chamber with an outlet cannula for connection to a catheter, and a penetrable resealable septum, all of which are biocompatible. The devices may be implanted subcutaneously, with the septum oriented just under the skin to provide easy access to repeated needle penetration. A catheter generally connects the outlet cannula of the device to a site remote from the site of implantation. Medication may be injected through the septum into the reservoir of the device, thus allowing delivery of the medication directly to the remote treatment site.
Intraspinal access devices of the prior art may develop blockages from particulate matter such as metal filings from needles and other metal present or from parts of the septum which may slough off as a result of needle puncture. Presently available intraspinal access devices and systems include filters which may be between the syringe and the needle or in the device itself.
SUMMARY OF THE INVENTION The present invention provides a septumless multi-chambered implantable device including an access device having improved filtering capabilities. The implantable access device of the invention includes a biocompatible housing having at least one entry port and at least one aperture with a passageway extending therebetween. The housing further includes a valve assembly disposed in the passageway, and the valve assembly includes a valve and a sealing element. In use, a filament, such as a needle, is introduced through the entry port, activating (opening) the valve to allow access through the passageway. Independent of the activation of the valve, a seal is created about the filament by the sealing element before the valve opens. The aperture communicates with an internal substantially cylindrical reservoir in the housing, the reservoir being defined by a lateral surface extending about a central axis and a bottom surface. An outlet cannula defining an internal channel extending from a point on the internal wall of the reservoir extends from the housing and is adapted to receive a catheter. A filter assembly is disposed in the reservoir.
A. a biocompatible housing having at least one entry port and at least one aperture with a passageway extending-therebetween, said entry port being adapted to receive a filament for passage into said passageway, said housing further including and disposed in said passageway a valve assembly comprising a valve and a sealing element, said valve assembly adapted to be activated by said filament after passage of said filament through said entry port whereupon a seal, independent of activation of said valve, is created by said sealing element about said filament before said valve opens to allow access through said passageway, said aperture communicating with an internal substantially cylindrical reservoir in the housing, said reservoir being defined by a lateral surface extending about a central axis and a bottom surface;
DESCRIPTION OF THE PREFERRED EMBODIMENTS The device 10 of the present invention as depicted in FIGS. 1A, 1B, and 2, includes a biocompatible housing 2 having a radially extending base flange plate 7. For ease of manufacture, housing 2 may be comprised of several parts, e.g., part 2', part 2", and part 2'". The housing 2 includes an interior reservoir 9 principally disposed in part 2'" defined by lateral surface 5 and bottom surface 6. As shown, reservoir 9 is cylindrical (having diameter D), extending along central axis A, with a circular cross-section perpendicular to central axis A. In other embodiments, reservoir 9 may be "substantially cylindrical", including functionally equivalent geometries, such as having an elliptical or polygonal cross-section perpendicular to central axis A. Flange plate 7 may include a multiplicity of apertures through which sutures may pass to anchor the device to the patient's muscle fascia. The parts 2' and 2" include a septumless access port and valve/seal assembly 3 which is coupled to an aperture 22'.
The reservoir 9 is in fluid communication with aperture 22' of the access port and valve/seal assembly 3. Part 2'" includes an outlet P from which an outlet cannula 11 extends. In the illustrated embodiment, cannula 11 extends from part 2'" at a first end 11A (where it is integral with part 2'" at outlet P) to a second end 11B which receives a catheter 13.
In the embodiment of FIGS. 1A, 1B and 2, second wall 27 is shaped to create an upper cylindrical reservoir sub-chamber 36a and a lower cylindrical reservoir subchamber 36b, respectively, within first reservoir chamber 30. The right-circular cylindrical geometry of those reservoir sub-chambers provides sharp right angle corners within first reservoir chamber 30. During the injection of fluid into the port through passageway 22', accumulation of particulate material or other debris in those corners is promoted and, in some cases, particulate material and other debris is held in those corners by eddy currents.
Additional embodiments of the filter assembly of the device of the present invention, including both single and double stage filters, are described more fully in U.S. patent application Ser. No. 08/472,544, "Implantable Treatment Material Device", attorney docket number SML-194, filed on even date herewith and incorporated herein by reference.
As shown in FIG. 1B, device 10 may be accessed by inserting a filament 240, such as a cannulated needle, into elastomeric member 220 positioned within a housing insert 230 which is disposed in passageway 222. Housing insert 230 is employed for ease of manufacture, but it should be understood that it could also be integral in the geometry of housing 2. Elastomeric member 220, in this embodiment, includes a plug 226 and an opening 242, terminating in a cap 224. Cap 224 may be titanium, stainless steel or any other suitable resilient metal. Elastomeric member 220 further has a transition region 232 along which the outer diameter of the elastomeric member 220 decreases from a first larger diameter to a second smaller diameter.
In other forms of the invention, one or more access devices with internal filter assemblies of the type described above may also be functional components of an infusate pump apparatus, such as that disclosed in U.S. Pat. No. 4,496,343, incorporated herein by reference. In this embodiment, the filter assembly may be contained within a common housing, or the infusate pump apparatus and the side access port may be connected but not contained within a common housing, as discussed in detail in the above-referenced U.S. patent application Ser. No. 08/472,544 ("Implantable Treatment Material Device", attorney docket number SML-194) and in U.S. patent application Ser. No. 08/390,014 "Implantable Access Device."
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3951147 *Apr 7, 1975Apr 20, 1976Metal Bellows CompanyImplantable infusate pumpUS4496343 *Feb 6, 1984Jan 29, 1985Infusaid CorporationInfusate pumpUS4573994 *Dec 7, 1981Mar 4, 1986The Johns Hopkins UniversityRefillable medication infusion apparatusUS4645495 *Jun 26, 1985Feb 24, 1987Vaillancourt Vincent LVascular access implant needle patchUS4654033 *Apr 1, 1985Mar 31, 1987BiomasysDevice for atraumatic access to the blood circuitUS5053013 *Jun 18, 1990Oct 1, 1991The Regents Of The University Of MichiganImplantable infusion deviceUS5057084 *Mar 1, 1990Oct 15, 1991The Regents Of The University Of MichiganImplantable infusion deviceUS5137529 *Apr 2, 1991Aug 11, 1992Pudenz-Schulte Medical Research CorporationInjection portUS5180365 *Feb 15, 1991Jan 19, 1993Ensminger William DImplantable infusion deviceUS5185003 *Feb 11, 1992Feb 9, 1993B. Braun Melsungen AgPort for injecting medicamentsUS5228879 *Aug 19, 1992Jul 20, 1993Fromm Wayne GToy mirror assemblyUS5263930 *Sep 4, 1992Nov 23, 1993William D. EnsmingerImplantable access devicesUS5281199 *Sep 4, 1992Jan 25, 1994Michigan Transtech CorporationImplantable access devicesUS5306255 *Sep 3, 1992Apr 26, 1994Hans HaindlPortcatheterUS5308336 *Sep 28, 1982May 3, 1994Applied Medical ResourcesSeal protection mechanismUS5324270 *Oct 29, 1992Jun 28, 1994General Surgical Innovations, Inc.Cannula with improved valve and skin sealUS5350360 *Oct 8, 1993Sep 27, 1994Michigan Transtech CorporationImplantable access devicesUS5356381 *Nov 24, 1993Oct 18, 1994Ensminger William DImplantable access devices *DE4129782A Title not availableEP0110117A2 *Oct 24, 1983Jun 13, 1984Cordis CorporationImplantable microinfusion pump systemEP0159260A1 *Apr 1, 1985Oct 23, 1985BIOMASYS Soci�t� dite:Atraumatic blood access deviceWO1983002063A1 *Dec 7, 1982Jun 23, 1983Univ Johns HopkinsRefillable medication infusion apparatusWO1994005246A1 *Sep 2, 1993Mar 17, 1994Michigan Transtech CorpImplantable access devicesWO1994005351A1 *Sep 2, 1993Mar 17, 1994William D EnsmingerImplantable access devices* Cited by examinerNon-Patent CitationsReference1 *Port A Cath Epidural Implantable Access System Instructions for Use, 1991 Pharmacia Deltec Inc., St. Paul, MN 55112.2 *Port A Cath Epidural Implantable Access System, Patient Information, 1991 Pharmacia Deltec Inc., St. Paul, MN 55112.3 *Port A Cath Implantable Epidural Access System, Journal Ad, 1991 Pharmacia Deltec Inc., St. Paul, MN 55112.4Port-A-Cath� Epidural Implantable Access System Instructions for Use, �1991 Pharmacia Deltec Inc., St. Paul, MN 55112.5Port-A-Cath� Epidural Implantable Access System, Patient Information, �1991 Pharmacia Deltec Inc., St. Paul, MN 55112.6Port-A-Cath� Implantable Epidural Access System, Journal Ad, �1991 Pharmacia Deltec Inc., St. Paul, MN 55112.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6013051 *Oct 22, 1998Jan 11, 2000Medtronic, Inc.Filtered access port with filter bypass for accessing body fluid samplesUS6485461Apr 4, 2000Nov 26, 2002Insulet, Inc.Disposable infusion deviceUS6663609 *Oct 22, 2001Dec 16, 2003Medtronic, Inc.Implantable pump catheter access port denial deviceUS6699218Nov 9, 2001Mar 2, 2004Insulet CorporationTranscutaneous delivery meansUS6805687Mar 22, 2002Oct 19, 2004Codman & Shurtleff, Inc.Infusion pump with access regulatorUS6960185Apr 13, 2001Nov 1, 2005Alphaport, LlcSubcutaneous access portUS6997914Apr 2, 2002Feb 14, 2006Horizon Medical Products, Inc.Implantable access portUS7497850Feb 28, 2005Mar 3, 2009Infusion Systems, LlcMedical device needle receiving portUS7637892Nov 17, 2006Dec 29, 2009Palyon Medical (Bvi) LimitedVariable flow infusion pump systemUS7708730Jan 30, 2006May 4, 2010Palyon Medical (Bvi) LimitedTemplate system for multi-reservoir implantable pumpUS7914510Mar 2, 2010Mar 29, 2011Palyon Medical (Bvi) LimitedTemplate system for multi-reservoir implantable pumpUS8034029May 25, 2005Oct 11, 2011Palyon Medical (Bvi) LimitedMulti-reservoir implantable pump with patient controlled actuationUS8034030May 25, 2005Oct 11, 2011Palyon Medical (Bvi) LimitedMulti-reservoir implantable pump with variable flow rate capabilitiesUS8114055May 10, 2005Feb 14, 2012Palyon Medical (Bvi) LimitedImplantable pump with infinitely variable resistorUS8177750Nov 19, 2009May 15, 2012Palyon Medical (Bvi) LimitedVariable flow infusion pump systemUS8211060May 10, 2005Jul 3, 2012Palyon Medical (Bvi) LimitedReduced size implantable pumpUS8568360Dec 28, 2011Oct 29, 2013Palyon Medical (Bvi) LimitedProgrammable implantable pump designUS8591456Dec 28, 2011Nov 26, 2013Palyon Medical (Bvi) LimitedMultiple reservoir programmable pumpUS8591478Jun 7, 2012Nov 26, 2013Palyon Medical (Bvi) LimitedReduced size implantable pumpUS8740925Oct 5, 2009Jun 3, 2014Covidien LpTrocar assemblyUS20120215178 *Feb 17, 2012Aug 23, 2012Medtronic Minimed, Inc.Pressure vented fluid reservoir having a movable septumEP1346737A1 *Mar 21, 2003Sep 24, 2003CODMAN &amp; SHURTLEFF, INC.Infusion pump with access regulatorWO2000053245A1 *Mar 9, 2000Sep 14, 2000Biolink CorpPort device for subcutaneous access to the vascular system of a patient* Cited by examinerClassifications U.S. Classification604/93.01, 604/175International ClassificationA61M37/00, A61M39/02, A61M5/165Cooperative ClassificationA61M2039/0241, A61M39/0208, A61M5/165European ClassificationA61M39/02BLegal EventsDateCodeEventDescriptionApr 10, 2012ASAssignmentFree format text: CHANGE OF NAME;ASSIGNOR:MEDASYS INCORPORATED;REEL/FRAME:028023/0921Owner name: FLOWONIX MEDICAL INCORPORATED, NEW JERSEYEffective date: 20120224Jun 16, 2010ASAssignmentEffective date: 20100323Owner name: MEDASYS INCORPORATED,NEW JERSEYFree format text: CHANGE OF NAME;ASSIGNOR:INSET TECHNOLOGIES INCORPORATED;REEL/FRAME:24547/43Free format text: CHANGE OF NAME;ASSIGNOR:INSET TECHNOLOGIES INCORPORATED;REEL/FRAME:024547/0043May 14, 2010FPAYFee paymentYear of fee payment: 12May 5, 2010ASAssignmentOwner name: STRATO/INFUSAID, INC.,MASSACHUSETTSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FLAHERTY, J. 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