Source: http://www.google.com/patents/US7722523?dq=No.+6,411,949&ei=AUR7T-LGJqSr0AHy2aSiBg
Timestamp: 2014-07-26 06:06:35
Document Index: 192583244

Matched Legal Cases: ['art.\n2', 'art.\n3', 'art.\n7', 'art.\n13', 'art.\n14', 'art.\n31', 'art.\n35', 'art.\n38', 'art.\n41', 'Application No. 09165200']

Patent US7722523 - Transventricular implant tools and devices - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA method and implantation tools for placing a transventricular splint including a tension member. The method includes gaining access to the patient's hearts and identifying entry or exit points for the tension member, marking those locations and delivering the tension member. Anchors for the tension...http://www.google.com/patents/US7722523?utm_source=gb-gplus-sharePatent US7722523 - Transventricular implant tools and devicesAdvanced Patent SearchPublication numberUS7722523 B2Publication typeGrantApplication numberUS 10/191,379Publication dateMay 25, 2010Filing dateJul 9, 2002Priority dateJul 29, 1998Fee statusPaidAlso published asDE69941392D1, EP1100378A1, EP1100378B1, US6260552, US6746471, US7981020, US8540620, US20010025171, US20030032979, US20050148815, US20080319256, US20110271967, US20140100420, WO2000006028A1, WO2000006028A9Publication number10191379, 191379, US 7722523 B2, US 7722523B2, US-B2-7722523, US7722523 B2, US7722523B2InventorsTodd J. Mortier, Cyril J. Schweich, Jr., Robert M. Vidlund, Peter T. Keith, Thomas M. Paulson, David A. KuszOriginal AssigneeEdwards Lifesciences LlcExport CitationBiBTeX, EndNote, RefManPatent Citations (99), Non-Patent Citations (90), Referenced by (1), Classifications (21), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetTransventricular implant tools and devicesUS 7722523 B2Abstract A method and implantation tools for placing a transventricular splint including a tension member. The method includes gaining access to the patient's hearts and identifying entry or exit points for the tension member, marking those locations and delivering the tension member. Anchors for the tension member are also delivered. The length of the tensions member is measured and the walls of the heart drawn together. The pads are secured to the tension member and the tension member is trimmed to length. The pads are secured to the heart surface.
1. A method for reducing ventricular volume, comprising:
deploying a tensile member from a leading end of said catheter;
attaching said tensile member to the patient's heart; and
exerting tension on said tensile member to draw walls of the patient's heart towards one another to reduce the volume of at least one ventricle of the patient's heart.
2. The method defined in claim 1, wherein said tensile member is provided with at least one anchoring mechanism at a leading end, the attaching of said tensile member to the patient's heart including embedding said anchoring mechanism in the patient's heart.
3. The method defined in claim 2, wherein the anchoring mechanism is screw-shaped.
4. The method defined in claim 2, wherein the anchoring mechanism includes at least one projection approximately transverse to an axis of the tensile member.
5. The method defined in claim 1, wherein the tensile member is one of two tensile members.
6. The method defined in claim 5, further comprising attaching the other tensile member to the patient's heart.
7. The method defined in claim 1, wherein inserting the catheter into the ventricle includes inserting the catheter through a heart valve leading to the ventricle.
8. The method defined in claim 7, wherein the ventricle is the left ventricle and the heart valve is the mitral valve.
9. The method defined in claim 7, wherein the ventricle is the left ventricle and the heart valve is the aortic valve.
10. The method defined in claim 9, wherein inserting the catheter through the aortic valve includes guiding the catheter through the aorta from an arterial access point.
11. The method defined in claim 1, wherein inserting the catheter into the ventricle includes inserting the catheter through a wall of the ventricle.
12. The method defined in claim 11, wherein inserting the catheter through a wall of the ventricle includes inserting the catheter through a wall at the apex of the heart.
13. The method defined in claim 1, wherein deploying the tensile member from the leading end of said catheter includes extending the tensile member through a heart wall to exterior the heart.
14. The method defined in claim 13, wherein attaching said tensile member to the patient's heart includes providing an anchoring mechanism on an end of the tensile member.
15. The method defined in claim 1, wherein said tensile member is provided with at least one anchoring mechanism at a leading end of the tensile member.
16. The method defined in claim 15, wherein the anchoring mechanism is expandable.
17. The method defined in claim 16, wherein the anchoring mechanism is a balloon.
18. The method defined in claim 15, wherein the anchoring mechanism includes a pad.
19. The method defined in claim 18, wherein the pad is coiled.
20. The method defined in claim 15, wherein the anchoring mechanism includes hinged arms.
21. The method defined in claim 15, wherein the anchoring mechanism includes an adhesive.
22. The method defined in claim 1, wherein the ventricle is the left ventricle.
23. The method defined in claim 1, wherein the ventricle is the right ventricle.
24. The method defined in claim 1, wherein drawing walls of the heart towards one another alters the geometric shape of the at least one ventricle.
25. The method defined in claim 1, wherein drawing walls of the heart towards one another reduces a radius of curvature of the at least one ventricle.
26. The method defined in claim 1, wherein the catheter includes an elongate shaft defining a lumen.
27. The method defined in claim 26, wherein deploying the tensile member includes advancing the tensile member through the lumen.
28. The method defined in claim 1, wherein the tensile member includes a distal end sharpened to permit advancement through a wall of the ventricle.
29. A method for reducing ventricular volume, comprising:
attaching said tensile member to the patient's heart so that said tensile member is contained completely within the patient's heart and does not protrude therefrom; and
30. The method defined in claim 29, wherein said tensile member is provided with at least one anchoring mechanism at a leading end, the attaching of said tensile member to the patient's heart including embedding said anchoring mechanism in the patient's heart.
31. The method defined in claim 30, wherein the anchoring mechanism is screw-shaped.
32. The method defined in claim 30, wherein the anchoring mechanism includes at least one projection approximately transverse to an axis of the tensile member.
33. The method defined in claim 29, wherein the tensile member is one of two tensile members.
34. The method defined in claim 33, further comprising attaching the other tensile member to the patient's heart.
35. The method defined in claim 29, wherein said walls are outer walls of the patient's heart, the attaching of said tensile member to the patient's heart and the exerting tension on said tensile member serving to compress and at least partially close portions of the at least one ventricle.
36. The method defined in claim 29, wherein at least one of said walls is an outer wall of the patient's heart, the attaching of said tensile member to the patient's heart and the exerting tension on said tensile member serving to compress and at least partially close a portion of exactly one ventricle.
37. A surgical method for assisting cardiac function, comprising:
inserting a device into a patient;
applying said device to a portion of the patient's heart so as to compress and at least partially close a portion of at least one ventricle of the heart, said device including a wire provided at a free end with at least one anchoring mechanism, the applying of said device to the portion of the patient's heart including:
ejecting said free end of said wire from said catheter into the patient's myocardium so that said free end and said at least one anchoring mechanism are embedded in the myocardium, surrounded thereby; and
exerting tension on said wire to pull walls of the patient's heart towards one another so as to compress said portion of said at least one ventricle of the heart.
38. The method defined in claim 37, wherein the anchoring mechanism is screw-shaped.
39. The method defined in claim 37, wherein the anchoring mechanism includes at least one projection approximately transverse to an axis of the tensile member.
40. The method defined in claim 37, wherein said free end of said wire is one of a pair of free wire ends each provided with at least one anchoring mechanism, the applying of said device to the portion of the patient's heart including:
ejecting said free wire ends from said catheter into the patient's myocardium so that said free ends and the respective anchoring mechanism thereof are embedded in the myocardium, surrounded thereby, and
exerting tension on said wire ends to pull said walls of the patient's heart towards one another so as to compress said portion of said at least one ventricle of the heart.
41. The method defined in claim 40, wherein said wire ends are terminal portions of wire segments.
42. The method defined in claim 40, wherein said walls are outer walls of the patient's heart, the applying of said device serving to compress and at least partially close portions of said at least one ventricle.
43. The method defined in claim 40, wherein one of said walls is an outer wall of the patient's heart, the applying of said device serving to compress and at least partially close a lower portion of exactly one ventricle.
44. The method defined in claim 37, wherein the ejecting said free end of said wire from said catheter into the patient's myocardium includes forcing said free end of said wire into an outer wall of the patient's heart, said walls including said outer wall, the applying of said device serving to compress and at least partially close a lower portion of exactly one ventricle.
45. The method defined in claim 37, wherein the inserting of said device includes inserting said device through a trocar. Description
RELATED APPLICATIONS This application is related to U.S. application Ser. No. 09/124,321, filed Jul. 29, 1998, entitled �Stress Reduction Apparatus and Method,� issued as U.S. Pat. No. 6,077,214, and U.S. application Ser. No. 09/124,286, filed Jul. 29, 1998, entitled �Heart Wall Tension Reduction Apparatus and Method,� issued as U.S. Pat. No. 6,045,497, both of which are incorporated herein by reference.
This application is a continuation of U.S. application Ser. No. 09/864,320, filed on May 25, 2001, now U.S. Pat. No. 6,746,471, which is a continuation of U.S. application Ser. No. 09/123,077, filed on Jul. 29, 1998, now U.S. Pat. No. 6,260,552.
FIELD OF THE INVENTION The present invention pertains to the field of apparatus for treatment of a failing heart. In particular, the apparatus of the present invention is directed toward implanting a device for reducing wall stress in the failing heart.
SUMMARY OF THE INVENTION The present invention relates to methods and devices for placing a transventricular splint to reduce mechanical heart wall muscle stress. Heart wall muscle stress is a stimulus for the initiation and progressive enlargement of the left ventricle in heart failure. Although the primary focus of the methods of the present invention is heart failure and thus placement of a splint on the left ventricle, the methods and devices of the present invention could be used to place a splint or reduce stress in the heart's other chambers.
BRIEF DESCRIPTION OF THE FIGURES Referring now to the drawings wherein like reference numerals refer to like elements throughout the several views, FIG. 1 is a cross sectional view of the left ventricle including a transventricular splint;
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to methods and tools for implanting a transventricular splint. The transventricular splint reduces heart wall stress by changing ventricular geometry. A splint can be full cycle or restrictive. If a splint is full cycle, it engages, i.e., alters the generally globular ventricular shape throughout the cardiac cycle. If the splint is restrictive, it does not change the generally globular shape of the ventricle at end systole.
FIG. 1 is a vertical cross sectional view of a left ventricle view B of a heart A. A typical transventricular splint 10 is disposed across ventricle B. Splint 10 includes a tension member 12. Connected to opposite ends of tension member 12 are anchors 14. Anchors 14 engage the walls of ventricle B to create a shape change either full cycle or restrictively. FIG. 1A is a horizontal cross sectional view of left ventricle B taken from FIG. 1 showing left ventricle B in a bi-lobe shape as a result of the implantation of splint 10. FIG. 2 is a vertical exterior view of heart A showing splint 10, one end of tension member 12 and an anchor 14.
Rather than using a tension member guide and/or tension alignment device to align the tension member for delivery through the preselected exit and entry points, tubular members 250 such as those shown in FIG. 35 can be advanced into the left ventricle from oppositely disposed predetermined entry points on the heart wall to form a splint 253′. Members 250 preferably have ends 250′ which are sufficiently sharp mat members 250 can advance through the heart wall without excessively injuring the wall. Members 250 preferably have anchor pads 252′ fixed at their opposite ends 250′. Members 250 preferably have a lumen defined therethrough in fluid communication with a lumen defined through pads 252′.
After members 250 are advanced into the ventricle through the predetermined entrance points, a wire hook 253 is advanced from one member 250 and a wire loop 251 is advanced from the opposite member 250. Hook 253 is then guided into loop 251 either by feel, or by echo imagery or fluoroscopy. Loop 251 preferably has a hook guide 252 to channel hook 253 into the member 250 disposed to the left in FIG. 35, as loop 251 is drawn through that member 250 by pulling ends 251′ of loop 251 to the left. Loop 251 is preferably drawn through member 250 disposed to the left in drawing FIG. 35 such that it can be knotted to the left of pad 252′ to form a tension member. The knot will restrain hook 253 from being pulled back in the heart. The opposite ends 253′ of hook 253 can be knotted to the right of pad 252′ disposed to the right in FIG. 35. The knot should be sufficiently large to prevent ends 253′ from being pulled into ventricle B.
FIG. 75 is yet another embodiment of an anchor pad 565 which can be placed from inside the heart to outside by the methods applicable to the device of FIG. 72. Pad 565 includes two arms 564 hingably connected to tension member 562. Arms 564 include a hinge 566. Pad 565 can be advanced through the heart wall while arms 564 are parallel and adjacent to each other. Once arms 564 have been advanced to the outside of the heart, a wire or line 568 connected to the distal end of arms 566 and extending proximally through tension member 562 car be pulled proximately to shorten the distance between the ends of arms 564 and bend arms 564 outward at hinges 566.
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Surg., 1991:52:506-13.90Westaby with Bosher, "Landmarks in Cardiac Surgery," 1997, pp. 198-199.Referenced byCiting PatentFiling datePublication dateApplicantTitleWO2013049708A1 *Sep 28, 2012Apr 4, 2013Bioventrix, Inc.Trans-catheter ventricular reconstruction structures, methods, and systems for treatment of congestive heart failure and other conditions* Cited by examinerClassifications U.S. Classification600/16, 600/37, 606/232International ClassificationA61B17/04, A61N1/362, A61F2/00, A61B17/122, A61B19/00, A61B17/00Cooperative ClassificationA61B17/00234, A61B17/1227, A61B19/54, A61B2017/00243, A61B2017/0404, A61B2017/0441, A61B2017/048, A61B2017/0496, A61B2019/464, A61F2/2487European ClassificationA61F2/24W4, A61B17/00ELegal EventsDateCodeEventDescriptionNov 25, 2013FPAYFee paymentYear of fee payment: 4Dec 14, 2010CCCertificate of correctionOct 15, 2010ASAssignmentOwner name: MYOCOR, INC., MINNESOTAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MORTIER, TODD J.;SCHWEICH, CYRIL J., JR.;VIDLUND, ROBERTM.;AND OTHERS;REEL/FRAME:025146/0854Effective date: 19981020Feb 16, 2009ASAssignmentOwner name: EDWARDS LIFESCIENCES LLC, CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;REEL/FRAME:022277/0011Effective date: 20081029Owner name: EDWARDS LIFESCIENCES LLC,CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100223;REEL/FRAME:22277/11Owner name: EDWARDS LIFESCIENCES LLC,CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100225;REEL/FRAME:22277/11Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100316;REEL/FRAME:22277/11Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100413;REEL/FRAME:22277/11Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100525;REEL/FRAME:22277/11Sep 5, 2007ASAssignmentOwner name: VENTURE LENDING & LEASING IV, INC., CALIFORNIAFree format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;REEL/FRAME:019805/0072Effective date: 20070820Owner name: VENTURE LENDING & LEASING IV, INC.,CALIFORNIAFree format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100223;REEL/FRAME:19805/72Free format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100225;REEL/FRAME:19805/72Free format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100316;REEL/FRAME:19805/72Free format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100413;REEL/FRAME:19805/72Free format text: SECURITY AGREEMMENT;ASSIGNOR:MYOCOR, INC.;US-ASSIGNMENT DATABASE UPDATED:20100525;REEL/FRAME:19805/72RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google