|Publication number||US3795246 A|
|Publication date||Mar 5, 1974|
|Filing date||Jan 26, 1973|
|Priority date||Jan 26, 1973|
|Publication number||US 3795246 A, US 3795246A, US-A-3795246, US3795246 A, US3795246A|
|Original Assignee||Bard Inc C R|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Non-Patent Citations (2), Referenced by (151), Classifications (9) |
|External Links: USPTO, USPTO Assignment, Espacenet|
US 3795246 A
A device designed to be implanted in a blood vessel such as the inferior vena cava, as a substitute for a tying or clamping operation on such vessel, the device being inserted in deflated condition through a simple incision, moved to the desired location, inflated to engage securely the wall of the vessel and then detached from the inserting means. The device comprises a generally cylindrical core body containing one or more one-way valves and having around its outer surface an inflatable balloon, the device being initially mounted on and inserted by an elongated catheter traversed by a needle through which inflation fluid is fed to the balloon; withdrawal of the needle after inflation permits the valve or valves to close and simultaneously separates the device from the catheter.
United States Patent 1191 Sturgeon 1 Man-5, 1974 VENOCCLUSION DEVICE  Inventor: John F. Sturgeon, Glens Falls, N.Y.  Assignee: C. R. Bard, ]nc., Murray Hill, NJ. 221 Filed: "Jan. 26, 1973  Appl. No.: 326,647
OTHER PUBLICATIONS Hughes; Carl W., Use of Intra-Aortic Balloon Catheter Tamponade For Controlling lntra-Abdominal Hunter; James A. et al., Experimental Balloon Obstri ction of Inferior Vena Cava," Annals of Surgery, 171 33-320, 1970.
Primary ExaminerChanning L. Pace Attorney, Agent, or FirmChester E. Martine, Jr.
 ABSTRACT A device designed to be implanted in a blood vessel such as the inferior vena cava, as a substitute for a tying or clamping operation on such vessel, the device being inserted in deflated condition through a simple incision, moved to the desired location, inflated to engage securely the wall of the vessel and then detached from the inserting means. The device comprises a generally cylindrical core body containing one or more one-way valves and having around its outer surface an 1 inflatable balloon, the device being initially mounted on and inserted by an elongated catheter traversed by a needle through which inflation fluid is fed to the balloon; withdrawal of the needle after inflation permits the valve or valves to close and simultaneously separates the device from the catheter.
10 Claims, 4 Drawing Figures VENOCCLUSION DEVICE The problem of migration of clots from veins in the legs toward the heart has been met heretofore by a dangerous major operation in which the inferior vena cava is tied, causing blood to return to the heart by way of collateral circulation. The background of the present invention is clearly set forth in Mobin-Uddin U. S. Pat. No. 3,540,431, wherein an umbrella-like device is proposed, to serve as a permanently implanted filter. That patent also suggests that the canopy part of the umbrella may be impervious, for complete occlusion, and it is known that the filter commonly becomes clogged sooner or later so that the passageway is completely blocked, either intentionally or otherwise. Other forms of occlusion devices are shown in Hunter and Sessions application Ser. No. 878,813, filed Nov. 21, I969, (and continuation application Ser. No. 232,323, filed Feb. 23, 1972) under which applicants assignee is licensed, and the present invention being specifically an improvement on the Hunter and Sessions devices.
Objects of the present invention are the provision of an occlusion device with a balloon assembly in which the balloon material'is practically impervious to the inflating fluid, in which a spring-loaded mechanical valve is in series with a plug of self-sealing material under compression, and in which the balloon assembly is detachably secured to the end of the inserting catheter only by means of the inflating needle. Additionally, the catheter is provided with a passage, an inlet fitting and outlet holes for feeding radiopaque dye to a point in the vessel, as an aid in the precise location of the occlusion device.
A practical embodiment of the invention is shown in the drawings, wherein:
FIG. 1, represents a longitudinal axial section ofthe occlusion device, needle and distal end of the insertion catheter with valve open;
FIG. 2 represents a similar longitudinal axial section with the balloon inflated and valve closed;
FIG. 3 represents an elevation of the occlusion device and insertion catheter, with fittings, part of the length being indicated by a broken line;
FIG. 4 represents a detail elevation, on an enlarged scale, of the proximal end of the catheter and its fitting, parts being in section and parts being broken away.
Referring to the drawings, the occlusion device is shown as comprising cylindrical body portion 11 having a tapered distal end 12 and a proximally open axial bore 13, the distal portion 14 of said bore having a smaller diameter than the proximal portion thereof and said portions being defined by an annular shoulder 15 forming a proximally facing seat.
A distally recessed annular retainer 16 rests against the shoulder 15 and an O-ring 17 is seated in the recess. Proximally of the retainer 16, the bore 13 is filled with a self-sealing rubber compound 18 held in the bore 13 by a tight fitting plug 19 having a small axial bore 20. A valve 21 having a beveled face 22 isslidable in the portion 14 of the bore, constituting a valve compart ment, the valve being urged by a spring 23 under compression toward engagement with the O-ring 17. One or more radial holes 24 extend outward from the portion 14 at points near the proximal end of said portion.
The latex rubber balloon 25 is applied to the outer surface of the body 10, preferably, by first stretching the end 26 of a cylindrical rubber sleeve or sheath over the proximal end of said body, wrapping said end tightly with thread (Dacron) 27, reversing the sleeve to cover the thread, as shown, and securing the distal end 28 of the sleeve against the tapered distal end 12 of the body 10 by means of an internally tapered ring 29 which is, held in place by a round-headed screw 30 threaded into the distal end of the body 10. The ring 29 and screw 30 are very precisely proportioned to hold the sleeve end 28 securely in sealing contact with the tapered end 12 of the body but without undue compression, and the diameters of said ring and screw are the same so that a comparatively smooth edge is formed at their juncture. In addition to the fastenings just described the balloon sleeve or sheath may be cemented to the body 10 at any desired areas in order to predetermine the size and shape of the balloon when inflated.
The insertion catheter 35 is an elongated plastic tube having a small bore 36, a simple adapter fitting 37 at its distal end and a multi-purpose fitting 38 at its proximal end. The fitting 37 has a plug portion 39 seated within the end of the catheter, a socket 40 (which may be slightly flaring) to receive the proximal end of the body portion 10 and a cylindrical or slightly tapering outer surface 41 which is flush, proximally, with the outer surface of the catheter and distally with the wrapped proximal end 26 of the rubber balloon 25.
The proximal fitting 38 is traversed by an axial bore 42 and has a plug portion 43 seated within the end of the catheter, a Luer lock '44 on a separate base 45 at its proximal end with valve 46' and a side-arm two-way Luer lock 47 with valve 48, communicating with the bore 36. An annular flange 49 extends radially outward from the bushing 50 which is threaded on the proximal end of the fitting 38.
The needle 31 has an outside diameter smaller than the bore 36 of the catheter, and a lumen extending from the proximal end Luer lock fitting 44 to a lateral opening 52 spaced from the distal tip 53, the needle being securely fixed to the base 45. The length of the needle is such that, when the base 45 is engaged against the fitting 38 and bushing 50, the sharply pointed tip end 53 will extend through and beyond the self-sealing material 18 to a position within the valve bore 14 where it holds the valve 21 wide open (FIG. 1), with the opening 52 in the bore 14 more or less opposite the opening or openings 24. The base 45 is held non-rotatably in its set position by means of pins 55 mounted in the base and extending into holes in the fitting 38.
With the parts assembled in the position of FIG. 1, the occlusion device 10 is introduced into a selected vessel and advanced to the desired location, such as the inferior vena cava, the position and progress of the device being monitored radioscopically, with or without the injection of dye and/or heparin saline through the side-arm 47, lumen 36 and radial passages 56 near the distal end of the catheter 35. During introduction of the occlusion device the body 10 is held firmly in the socket 40 on the end of the catheter by the engagement of the needle 31 in the compressed mass of self-sealing material 18, this engagement being secure enough to permit the occlusion device to be adjusted in either direction to its optimum position. Upon reaching that position, inflation of the balloon 25 is effected by injecting an inflation fluid from a syringe (not shown) through the luer lock fitting 44, the lumen of the needle and the opening 52.
The fluid acts through the opening 24 to inflate the balloon 25 to-a diameter sufficient to engage securely the adjacent wall of the vessel to be occluded, the size of said-vessel being generally both known and observable. When satisfactory engagement has been effected, inflation is stopped, the base 45 is disengaged from the fitting 38 and the needle is carefully withdrawn, as by screwing in a proximal direction the bushing 50.
As the needle is withdrawn from the open position of FIG. 1 to the closed position of FIG. 2 the valve 21 is moved proximally by the spring 23 until the surface 22 comes to a rest on the O-ring l7, creating a tight seal as the O-ring is compressed into the recess of retainer 16. Further retraction of the needle eventually frees its tip portion from the material 18, the hole made by original insertion of the needle closing tightly in the wake.
of the needle point to create a second seal, preventing leakage of the inflation fluid in the event that any is able to pass the O-ring. The cylindrical body of the valve 21 may be so proportioned that its surface will, in the closed position, seal off the opening 24, as an additional precaution against leakage.
For optimum results, the balloon has to be scientifically compounded to reduce the effect of osmolarity imbalance, prevent premature deflation, and transfer of liquid and salts from inside the balloon to the surrounding tissue. The balloon must be of a sufficient modulus to prevent premature rupture while under tension.
The balloon shape is substantially spherical when unrestricted, but becomes somewhat elongated when inflated against the wall of the inferior vena'cava. Its proportions can be designed for use in occluding vessels from 4F through 22F.
It will be understood that various changes may be made in the form, construction and arrangement of the several parts without departing from the spirit and scope of the invention and hence l do not intend to be limited to the details shown or described herein except as the same are included in the claims or may be required by disclosures of the prior art.
What I claim is: g
l. A blood vessel occluding device comprising, a rigid cylindrical body having distal and proximal ends and an axial bore, means closing the distal end of said bore, a valve seat spaced from said closing means, to define a valve compartment between said closing means and said seat, a valve movable in said compartment toward and away from said seat, a passage extending outward from said compartment through the body wall, resilient means urging said valve toward engagement with said seat, a mass of self-sealing material substantially filling said bore proximally of said valve seat, means at the proximal end of said body for retaining said mass in said bore, and a sheath of stretchable fluid-impervious material sealed to said body distally and proximally of said passage and adapted to be inflated to form a balloon around said body.
2. A blood vessel occluding device according to claim 1 which includes a ring engaging the distal end portion of the sheath to hold it in sealing contact with the body surface.
3. A blood vessel occluding deviceaccording to claim 2 which includes a smoothly rounded. distal tip element adapted to hold the ring in sheath engaging position.
4. A blood vessel occluding device according to claim 1 wherein the valve seat and the mass retaining means are traversed axially by openings to permit passage of an inflating needle.
5. In combination, the occluding device as claimed in claim 1 and a positioning device comprising an elongated flexible catheter, a fitting on the distal end of the catheter having a socket adapted to receive the proximal end of the body and an axial opening, an elongated needle having a bore and a distal end, the bore terminating distally in an opening adjacent said distal end, and means for moving said needle axially relative to said catheter, the occluding device being associated with the positioning device with the proximal end of the body seated in the socket and the needle passing through the mass of material and projecting distally therefrom sufficiently to hold the valve off its seat and provide communication between the distal opening in theneedle and the outwardly extending passage.
6. The combination according to claim 5 wherein the outer surface of the fitting forms a smooth continuation of the outer surface of the catheter at the distal end of the latter.
7. The combination according to claim 5 wherein the outer surface of the fitting forms a smooth continuation of the outer surface of the balloon sheath at the proximal end of the latter.
8. The combination according to claim 5 wherein the needle moving means includes a fitting on the proximal end of the catheter and a separate base element, the needle having its proximal end connected to said base element and passing through said proximal catheter fitting, and said base element being adapted to rest against said latter fitting.
9. The combination according to claim 8 which includes a flanged bushing threaded to the proximal catheter fitting and adapted to be positioned to determine the axial position of the separate base element relative to said latter fitting.
10. The combination according to claim 8 which includes means preventing rotation of said base element relative to said proximal catheter fitting.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2493326 *||Mar 1, 1949||Jan 3, 1950||John H Trinder||Tampon for control of intractable nasal hemorrhages|
|US2930377 *||Jun 2, 1958||Mar 29, 1960||Baxter Don Inc||Surgical tube|
|US3334629 *||Nov 9, 1964||Aug 8, 1967||Bertram D Cohn||Occlusive device for inferior vena cava|
|US3540431 *||Apr 4, 1968||Nov 17, 1970||Kazi Mobin Uddin||Collapsible filter for fluid flowing in closed passageway|
|US3642004 *||Jan 5, 1970||Feb 15, 1972||Life Support Equipment Corp||Urethral valve|
|1|| *||Hughes; Carl W., Use of Intra Aortic Balloon Catheter Tamponade For Controlling Intra Abdominal Hemorrhage In Man. Surg. 36 ;65 68,1954.|
|2|| *||Hunter; James A. et al., Experimental Balloon Obstruction of Inferior Vena Cava, Annals of Surgery, 171 : 315 320, 1970.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3923065 *||Sep 9, 1974||Dec 2, 1975||Jerome Nozick||Embolectomy catheter|
|US4130119 *||Apr 1, 1977||Dec 19, 1978||Barlow Mfg. Corp.||Occlusion device|
|US4395806 *||Nov 12, 1981||Aug 2, 1983||Sorenson Research Co., Inc.||Method of manufacturing a detachable balloon catheter assembly|
|US4471779 *||Aug 25, 1976||Sep 18, 1984||Becton, Dickinson And Company||Miniature balloon catheter|
|US4570685 *||Jun 24, 1985||Feb 18, 1986||Taylor Julian S||Vacuum tube engine oil sampler|
|US4581020 *||Jul 18, 1983||Apr 8, 1986||Trimedyne, Inc.||Medication delivery device and system for percutaneous administration of medication|
|US4686962 *||Jul 3, 1986||Aug 18, 1987||Habley Medical Technology Corporation||Disposable cartridge assembly for hypodermically implanting a genitourinary prosthesis|
|US4723556 *||Apr 14, 1986||Feb 9, 1988||Cordis Corporation||Intracranial ventricular catheter assembly|
|US4793351 *||Jun 15, 1987||Dec 27, 1988||Mansfield Scientific, Inc.||Multi-lumen balloon catheter|
|US4802479 *||Oct 31, 1986||Feb 7, 1989||C. R. Bard, Inc.||Hand-held instrument for implanting, dispensing, and inflating an inflatable membrane|
|US4832680 *||Jul 3, 1986||May 23, 1989||C.R. Bard, Inc.||Apparatus for hypodermically implanting a genitourinary prosthesis|
|US5330498 *||Dec 17, 1991||Jul 19, 1994||Hill John D||Blood vessel occlusion trocar|
|US5499996 *||Mar 14, 1994||Mar 19, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5522838 *||Jun 7, 1995||Jun 4, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5533957 *||May 18, 1995||Jul 9, 1996||Trustees Of Boston University||Method of tissue retroperfusion|
|US5556412 *||Jun 7, 1995||Sep 17, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5597377 *||May 6, 1994||Jan 28, 1997||Trustees Of Boston University||Coronary sinus reperfusion catheter|
|US5683410 *||Nov 4, 1993||Nov 4, 1997||Target Therapeutics, Inc.||Single-lumen balloon catheter having a directional valve|
|US5830228 *||May 29, 1996||Nov 3, 1998||Urosurge, Inc.||Methods and systems for deployment of a detachable balloon at a target site in vivo|
|US5935103 *||Jul 18, 1997||Aug 10, 1999||Heartport, Inc.||Blood vessel occlusion device|
|US5941894 *||Jul 18, 1997||Aug 24, 1999||Heartport, Inc.||Blood vessel occlusion device|
|US5997505 *||Jul 18, 1997||Dec 7, 1999||Heartport, Inc.||Method of cannulating an ascending aorta using a blood vessel occlusion device|
|US6096055 *||Jun 18, 1997||Aug 1, 2000||Target Therapuetics, Inc.||Single-lumen balloon catheter having a directional valve|
|US6224619||Sep 17, 1996||May 1, 2001||Heartport, Inc.||Blood vessel occlusion trocar having size and shape varying insertion body|
|US6458096 *||Apr 5, 1996||Oct 1, 2002||Medtronic, Inc.||Catheter with autoinflating, autoregulating balloon|
|US6749583||Sep 5, 2002||Jun 15, 2004||Medtronic, Inc.||Catheter with autoinflating, autoregulating balloon|
|US6964669||Apr 12, 2000||Nov 15, 2005||Ams Research Corporation||Linear delivery system for deployment of a detachable balloon at a target site in vivo|
|US7160325||Jun 1, 2001||Jan 9, 2007||Ams Research Corporation||Implantable medical balloon and valve|
|US7186265||Dec 3, 2004||Mar 6, 2007||Medtronic, Inc.||Prosthetic cardiac valves and systems and methods for implanting thereof|
|US7329279||Jul 15, 2004||Feb 12, 2008||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US7381219||Dec 23, 2003||Jun 3, 2008||Sadra Medical, Inc.||Low profile heart valve and delivery system|
|US7445631||Jul 15, 2004||Nov 4, 2008||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US7503930||Feb 16, 2007||Mar 17, 2009||Medtronic, Inc.||Prosthetic cardiac valves and systems and methods for implanting thereof|
|US7524331||Apr 6, 2006||Apr 28, 2009||Medtronic Vascular, Inc.||Catheter delivered valve having a barrier to provide an enhanced seal|
|US7544206||Jul 19, 2004||Jun 9, 2009||Medtronic, Inc.||Method and apparatus for resecting and replacing an aortic valve|
|US7591848||Apr 6, 2006||Sep 22, 2009||Medtronic Vascular, Inc.||Riveted stent valve for percutaneous use|
|US7611535||Jun 29, 2006||Nov 3, 2009||Medtronic, Inc.||Fixation band for affixing a prosthetic heart valve to tissue|
|US7625403||Apr 4, 2006||Dec 1, 2009||Medtronic Vascular, Inc.||Valved conduit designed for subsequent catheter delivered valve therapy|
|US7682390||Jul 30, 2002||Mar 23, 2010||Medtronic, Inc.||Assembly for setting a valve prosthesis in a corporeal duct|
|US7712606||Feb 2, 2006||May 11, 2010||Sadra Medical, Inc.||Two-part package for medical implant|
|US7740655||Apr 6, 2006||Jun 22, 2010||Medtronic Vascular, Inc.||Reinforced surgical conduit for implantation of a stented valve therein|
|US7748389||Oct 21, 2004||Jul 6, 2010||Sadra Medical, Inc.||Leaflet engagement elements and methods for use thereof|
|US7758606||Feb 5, 2004||Jul 20, 2010||Medtronic, Inc.||Intravascular filter with debris entrapment mechanism|
|US7780725||Jun 16, 2004||Aug 24, 2010||Sadra Medical, Inc.||Everting heart valve|
|US7780726||Aug 24, 2010||Medtronic, Inc.||Assembly for placing a prosthetic valve in a duct in the body|
|US7824442||Nov 5, 2004||Nov 2, 2010||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a heart valve|
|US7824443||Feb 2, 2006||Nov 2, 2010||Sadra Medical, Inc.||Medical implant delivery and deployment tool|
|US7871436||Feb 15, 2008||Jan 18, 2011||Medtronic, Inc.||Replacement prosthetic heart valves and methods of implantation|
|US7892281||Feb 22, 2011||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US7909794||Jun 1, 2004||Mar 22, 2011||Medtronic, Inc.||Catheter with autoinflating, autoregulating balloon|
|US7914569||May 13, 2005||Mar 29, 2011||Medtronics Corevalve Llc||Heart valve prosthesis and methods of manufacture and use|
|US7959666||Nov 5, 2004||Jun 14, 2011||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a heart valve|
|US7959672||Aug 3, 2004||Jun 14, 2011||Sadra Medical||Replacement valve and anchor|
|US7972378||Jan 23, 2009||Jul 5, 2011||Medtronic, Inc.||Stents for prosthetic heart valves|
|US7988724||Feb 14, 2007||Aug 2, 2011||Sadra Medical, Inc.||Systems and methods for delivering a medical implant|
|US8002826||Oct 14, 2009||Aug 23, 2011||Medtronic Corevalve Llc||Assembly for placing a prosthetic valve in a duct in the body|
|US8016877||Jun 29, 2009||Sep 13, 2011||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US8048153||Nov 1, 2011||Sadra Medical, Inc.||Low profile heart valve and delivery system|
|US8052749||Sep 20, 2005||Nov 8, 2011||Sadra Medical, Inc.||Methods and apparatus for endovascular heart valve replacement comprising tissue grasping elements|
|US8052750||Mar 23, 2007||Nov 8, 2011||Medtronic Ventor Technologies Ltd||Valve prosthesis fixation techniques using sandwiching|
|US8070801||Feb 23, 2009||Dec 6, 2011||Medtronic, Inc.||Method and apparatus for resecting and replacing an aortic valve|
|US8075615||Mar 28, 2007||Dec 13, 2011||Medtronic, Inc.||Prosthetic cardiac valve formed from pericardium material and methods of making same|
|US8092487||Jun 14, 2010||Jan 10, 2012||Medtronic, Inc.||Intravascular filter with debris entrapment mechanism|
|US8109996||Feb 25, 2005||Feb 7, 2012||Sorin Biomedica Cardio, S.R.L.||Minimally-invasive cardiac-valve prosthesis|
|US8136659||May 10, 2010||Mar 20, 2012||Sadra Medical, Inc.||Two-part package for medical implant|
|US8157852||Jan 22, 2009||Apr 17, 2012||Medtronic, Inc.||Delivery systems and methods of implantation for prosthetic heart valves|
|US8157853||Jan 22, 2009||Apr 17, 2012||Medtronic, Inc.||Delivery systems and methods of implantation for prosthetic heart valves|
|US8182528||Dec 23, 2003||May 22, 2012||Sadra Medical, Inc.||Locking heart valve anchor|
|US8226710||Mar 25, 2011||Jul 24, 2012||Medtronic Corevalve, Inc.||Heart valve prosthesis and methods of manufacture and use|
|US8231670||Nov 3, 2008||Jul 31, 2012||Sadra Medical, Inc.||Repositionable heart valve and method|
|US8246678||Mar 9, 2007||Aug 21, 2012||Sadra Medicl, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US8252052||Feb 8, 2008||Aug 28, 2012||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US8287584||Nov 14, 2005||Oct 16, 2012||Sadra Medical, Inc.||Medical implant deployment tool|
|US8313525||Mar 18, 2008||Nov 20, 2012||Medtronic Ventor Technologies, Ltd.||Valve suturing and implantation procedures|
|US8328868||Oct 13, 2009||Dec 11, 2012||Sadra Medical, Inc.||Medical devices and delivery systems for delivering medical devices|
|US8343213||Oct 21, 2004||Jan 1, 2013||Sadra Medical, Inc.||Leaflet engagement elements and methods for use thereof|
|US8348995||Mar 23, 2007||Jan 8, 2013||Medtronic Ventor Technologies, Ltd.||Axial-force fixation member for valve|
|US8348996||Mar 23, 2007||Jan 8, 2013||Medtronic Ventor Technologies Ltd.||Valve prosthesis implantation techniques|
|US8414643||Mar 23, 2007||Apr 9, 2013||Medtronic Ventor Technologies Ltd.||Sinus-engaging valve fixation member|
|US8430927||Feb 2, 2009||Apr 30, 2013||Medtronic, Inc.||Multiple orifice implantable heart valve and methods of implantation|
|US8512397||Apr 27, 2009||Aug 20, 2013||Sorin Group Italia S.R.L.||Prosthetic vascular conduit|
|US8535373||Jun 16, 2008||Sep 17, 2013||Sorin Group Italia S.R.L.||Minimally-invasive cardiac-valve prosthesis|
|US8539662||Jun 16, 2008||Sep 24, 2013||Sorin Group Italia S.R.L.||Cardiac-valve prosthesis|
|US8540768||Dec 30, 2011||Sep 24, 2013||Sorin Group Italia S.R.L.||Cardiac valve prosthesis|
|US8562672||Nov 18, 2005||Oct 22, 2013||Medtronic, Inc.||Apparatus for treatment of cardiac valves and method of its manufacture|
|US8579962||Dec 20, 2005||Nov 12, 2013||Sadra Medical, Inc.||Methods and apparatus for performing valvuloplasty|
|US8579966||Feb 4, 2004||Nov 12, 2013||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US8591570||Mar 14, 2008||Nov 26, 2013||Medtronic, Inc.||Prosthetic heart valve for replacing previously implanted heart valve|
|US8603159||Dec 11, 2009||Dec 10, 2013||Medtronic Corevalve, Llc||Prosthetic valve for transluminal delivery|
|US8603160||Dec 23, 2003||Dec 10, 2013||Sadra Medical, Inc.||Method of using a retrievable heart valve anchor with a sheath|
|US8617236||Nov 2, 2011||Dec 31, 2013||Sadra Medical, Inc.||Medical devices and delivery systems for delivering medical devices|
|US8623076||Sep 22, 2011||Jan 7, 2014||Sadra Medical, Inc.||Low profile heart valve and delivery system|
|US8623077||Dec 5, 2011||Jan 7, 2014||Medtronic, Inc.||Apparatus for replacing a cardiac valve|
|US8623078||Jun 8, 2011||Jan 7, 2014||Sadra Medical, Inc.||Replacement valve and anchor|
|US8628570||Aug 18, 2011||Jan 14, 2014||Medtronic Corevalve Llc||Assembly for placing a prosthetic valve in a duct in the body|
|US8652204||Jul 30, 2010||Feb 18, 2014||Medtronic, Inc.||Transcatheter valve with torsion spring fixation and related systems and methods|
|US8668733||Nov 12, 2008||Mar 11, 2014||Sadra Medical, Inc.||Everting heart valve|
|US8673000||May 20, 2011||Mar 18, 2014||Medtronic, Inc.||Stents for prosthetic heart valves|
|US8685077||Mar 14, 2012||Apr 1, 2014||Medtronics, Inc.||Delivery systems and methods of implantation for prosthetic heart valves|
|US8685084||Dec 28, 2012||Apr 1, 2014||Sorin Group Italia S.R.L.||Prosthetic vascular conduit and assembly method|
|US8721708||Sep 23, 2011||May 13, 2014||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US8721714||Sep 17, 2008||May 13, 2014||Medtronic Corevalve Llc||Delivery system for deployment of medical devices|
|US8728155||Sep 20, 2013||May 20, 2014||Cephea Valve Technologies, Inc.||Disk-based valve apparatus and method for the treatment of valve dysfunction|
|US8747458||Aug 20, 2007||Jun 10, 2014||Medtronic Ventor Technologies Ltd.||Stent loading tool and method for use thereof|
|US8747460||Dec 23, 2011||Jun 10, 2014||Medtronic Ventor Technologies Ltd.||Methods for implanting a valve prothesis|
|US8771302||Apr 6, 2007||Jul 8, 2014||Medtronic, Inc.||Method and apparatus for resecting and replacing an aortic valve|
|US8771345||Oct 31, 2011||Jul 8, 2014||Medtronic Ventor Technologies Ltd.||Valve prosthesis fixation techniques using sandwiching|
|US8771346||Jul 25, 2011||Jul 8, 2014||Medtronic Ventor Technologies Ltd.||Valve prosthetic fixation techniques using sandwiching|
|US8777980||Dec 23, 2011||Jul 15, 2014||Medtronic, Inc.||Intravascular filter with debris entrapment mechanism|
|US8801779||May 10, 2011||Aug 12, 2014||Medtronic Corevalve, Llc||Prosthetic valve for transluminal delivery|
|US8808369||Oct 5, 2010||Aug 19, 2014||Mayo Foundation For Medical Education And Research||Minimally invasive aortic valve replacement|
|US8828078||Sep 20, 2005||Sep 9, 2014||Sadra Medical, Inc.||Methods and apparatus for endovascular heart valve replacement comprising tissue grasping elements|
|US8834563||Dec 16, 2009||Sep 16, 2014||Sorin Group Italia S.R.L.||Expandable prosthetic valve having anchoring appendages|
|US8834564||Mar 11, 2010||Sep 16, 2014||Medtronic, Inc.||Sinus-engaging valve fixation member|
|US8840661||May 13, 2009||Sep 23, 2014||Sorin Group Italia S.R.L.||Atraumatic prosthetic heart valve prosthesis|
|US8840662||Oct 27, 2011||Sep 23, 2014||Sadra Medical, Inc.||Repositionable heart valve and method|
|US8840663||Dec 23, 2003||Sep 23, 2014||Sadra Medical, Inc.||Repositionable heart valve method|
|US8858619||May 12, 2006||Oct 14, 2014||Medtronic, Inc.||System and method for implanting a replacement valve|
|US8858620||Jun 10, 2011||Oct 14, 2014||Sadra Medical Inc.||Methods and apparatus for endovascularly replacing a heart valve|
|US8870948||Jan 31, 2014||Oct 28, 2014||Cephea Valve Technologies, Inc.||System and method for cardiac valve repair and replacement|
|US8876894||Mar 23, 2007||Nov 4, 2014||Medtronic Ventor Technologies Ltd.||Leaflet-sensitive valve fixation member|
|US8876895||Mar 23, 2007||Nov 4, 2014||Medtronic Ventor Technologies Ltd.||Valve fixation member having engagement arms|
|US8876896||Dec 7, 2011||Nov 4, 2014||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US8894703||Jun 22, 2011||Nov 25, 2014||Sadra Medical, Inc.||Systems and methods for delivering a medical implant|
|US8920492||Aug 21, 2013||Dec 30, 2014||Sorin Group Italia S.R.L.||Cardiac valve prosthesis|
|US8940014||Nov 14, 2012||Jan 27, 2015||Boston Scientific Scimed, Inc.||Bond between components of a medical device|
|US8951243||Nov 29, 2012||Feb 10, 2015||Boston Scientific Scimed, Inc.||Medical device handle|
|US8951299||Oct 13, 2009||Feb 10, 2015||Sadra Medical, Inc.||Medical devices and delivery systems for delivering medical devices|
|US8956402||Sep 14, 2012||Feb 17, 2015||Medtronic, Inc.||Apparatus for replacing a cardiac valve|
|US8986329||Oct 28, 2013||Mar 24, 2015||Medtronic Corevalve Llc||Methods for transluminal delivery of prosthetic valves|
|US8986361||Oct 17, 2008||Mar 24, 2015||Medtronic Corevalve, Inc.||Delivery system for deployment of medical devices|
|US8992608||Jun 26, 2009||Mar 31, 2015||Sadra Medical, Inc.||Everting heart valve|
|US8998976||Jul 12, 2012||Apr 7, 2015||Boston Scientific Scimed, Inc.||Coupling system for medical devices|
|US8998979||Feb 11, 2014||Apr 7, 2015||Medtronic Corevalve Llc||Transcatheter heart valves|
|US8998981||Sep 15, 2009||Apr 7, 2015||Medtronic, Inc.||Prosthetic heart valve having identifiers for aiding in radiographic positioning|
|US9005273||Apr 4, 2007||Apr 14, 2015||Sadra Medical, Inc.||Assessing the location and performance of replacement heart valves|
|US9011521||Dec 13, 2011||Apr 21, 2015||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US9060856||Feb 11, 2014||Jun 23, 2015||Medtronic Corevalve Llc||Transcatheter heart valves|
|US9060857||Jun 19, 2012||Jun 23, 2015||Medtronic Corevalve Llc||Heart valve prosthesis and methods of manufacture and use|
|US9066799||Jan 20, 2011||Jun 30, 2015||Medtronic Corevalve Llc||Prosthetic valve for transluminal delivery|
|US9078781||Jan 11, 2006||Jul 14, 2015||Medtronic, Inc.||Sterile cover for compressible stents used in percutaneous device delivery systems|
|US20040210304 *||Feb 4, 2004||Oct 21, 2004||Corevalve, S.A.||Prosthetic valve for transluminal delivery|
|US20040220522 *||Jun 1, 2004||Nov 4, 2004||Medtronic, Inc.||Catheter with autoinflating, autoregulating balloon|
|US20050010246 *||Feb 5, 2004||Jan 13, 2005||Streeter Richard B.||Intravascular filter with debris entrapment mechanism|
|US20070162107||Mar 9, 2007||Jul 12, 2007||Sadra Medical, Inc.||Methods and apparatus for endovascularly replacing a patient's heart valve|
|US20130304182 *||May 14, 2012||Nov 14, 2013||Abbott Cardiovascular Systems Inc.||Flow regulation valve for controlling inflation rate of a balloon deploying a scaffold|
|USRE32348 *||Dec 31, 1979||Feb 10, 1987|| ||Miniature balloon catheter method and apparatus|
|EP0654253A1 *||Oct 28, 1994||May 24, 1995||C.R. Bard, Inc.||Improved inflatable prosthesis|
|WO1981003120A1 *||Apr 24, 1981||Nov 12, 1981||Sorenson Res Co Inc||Detachable balloon catheter apparatus and method|
|WO1988000028A1 *||Jul 2, 1987||Jan 14, 1988||Habley Medical Technology Corp||Assembly for hypodermically implanting a genitourinary prosthesis|
|WO1988000070A1 *||Jul 2, 1987||Jan 14, 1988||Habley Medical Technology Corp||Apparatus for hypodermically implanting a genitourinary prosthesis|