Patent DE874231C successfully refreshed from Google Patents.

Patent FR1250852A successfully refreshed from Google Patents.

US7563273B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Methods and devices for capturing and fixing leaflets in valve repair

Assignee: Evalve Inc

•

Filing: 2004-03-17

•

Granted: 2009-07-21

•

Expires: 2024-03-17

📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention provides methods and devices for grasping, and optional repositioning and fixation of the valve leaflets to treat cardiac valve regurgitation, particularly mitral valve regurgitation. Such grasping will typically be atraumatic providing a number of benefits. For example, atraumatic grasping may allow repositioning of the devices relative to the leaflets and repositioning of the leaflets themselves without damage to the leaflets. However, in some cases it may be necessary or desired to include grasping which pierces or otherwise permanently affects the leaflets. In some of these cases, the grasping step includes fixation.

Inventors

👤 Eric A. Goldfarb
👤 Kent D. Dell
👤 Sylvia Wen-Chin Fan
👤 Brian B. Martin
👤 Ferolyn T. Powell
👤 Alfred H. Raschdorf
👤 Troy L. Thornton

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-24 17:11

CPC Classifications

A; A61; A61B; A61B17/00; A61B17/00234; A61B17/04; A61B17/0469; A61B17/06; A61B17/062; A61B17/0625; A61B17/12; A61B17/122; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B50/00; A61B50/30; A61B17/0401; A61B17/0482; A61B17/0487; A61B17/064; A61B17/0643; A61B17/0644; A61B17/068; A61B17/072; A61B17/07207; A61B17/08; A61B17/1227; A61B17/128; A61B17/1285; A61B17/28; A61B17/29; A61B18/18; A61B18/20; A61B2017/00238; A61B2017/00243; A61B17/0057; A61B2017/00575; A61B2017/00579; A61B2017/00588; A61B2017/00592; A61B2017/00606; A61B2017/00623; A61B2017/00743; A61B2017/00778; A61B2017/00783; A61B2017/00831; A61B2017/00867; A61B2017/00982; A61B2017/00986; A61B2017/0404; A61B2017/0409; A61B2017/0417; A61B2017/0419; A61B2017/044; A61B2017/0443; A61B2017/0446; A61B2017/0458; A61B2017/0464; A61B2017/047; A61B2017/0472; A61B2017/0474; A61B2017/0488; A61B2017/0496; A61B2017/06052; A61B2017/06057; A61B17/06066; A61B2017/06076; A61B2017/061; A61B17/06166; A61B2017/06171; A61B2017/0641; A61B2017/088; A61B2017/2901; A61B2017/2908; A61B2017/2926; A61B8/00; A61B8/10; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/246; A61F2/2463

Claims Analysis

Total Claims: 33

Claim 1

Independent Claim 276 words

An interventional tool for repairing a cardiac valve of a patient having leaflets, said tool comprising: a catheter having an inner shaft, a proximal portion and a distal portion adapted for placement through vasculature of the patient to a location near the cardiac valve; and a capture device detachably connected to the catheter comprising at least two extendable distal elements and at least two extendable proximal elements, each of the proximal and distal elements having a proximal end adjacent the shaft and a distal end, wherein the at least two extendable distal elements and the at least two extendable proximal elements are disposed near the distal portion of said shaft and held in a retracted position adjacent to the shaft, and wherein the at least two extendable distal elements and the at least two extendable proximal elements are independently deployable and self-expand in an outward radial direction from the shaft to a deployed position further away from the shaft than the retracted position and to positions in between the retracted position and the deployed position, so as to capture the valve leaflets between the at least two extendable distal elements and the at least two extendable proximal elements, wherein extending the at least two distal and at least two proximal elements adjusts a length in each of the elements protruding from the shaft, the length traversing from the distal end of the element to a distal end of the shaft, wherein the shaft is movable relative to the catheter so that the at least two proximal elements in the deployed position are moved into engagement with the at least two distal elements in the deployed position.

Claim 2

Dependent Claim 276 words

Claim 3

Dependent Claim 29 words

A device as in claim 1 , wherein the at least two proximal elements and the at least two distal elements are adapted to atraumatically capture the valve leaflets.

Claim 4

Dependent Claim 26 words

A device as in claim 2 , wherein the at least two distal elements and/or the at least two proximal elements further include a frictional accessory.

Claim 5

Dependent Claim 39 words

A device as in claim 1 , wherein the at least two proximal elements and/or the at least two distal elements are adapted to be adjusted angularly after capturing the valve leaflets to adjust the position of the leaflets.

Claim 6

Dependent Claim 22 words

A device as in claim 1 , wherein the at least two distal elements are disposed on opposite sides of the shaft.

Claim 7

Dependent Claim 17 words

A device as in claim 5 , wherein the at least two distal elements are simultaneously deployable.

Claim 8

Dependent Claim 22 words

A device as in claim 1 , wherein the at least two proximal elements are disposed on opposite sides of the shaft.

Claim 9

Dependent Claim 17 words

A device as in claim 7 , wherein the at least two proximal elements are simultaneously deployable.

Claim 10

Dependent Claim 27 words

A device as in claim 1 , wherein the at least two proximal elements and/or the at least two distal elements have a loop shape when deployed.

Claim 11

Dependent Claim 38 words

A device as in claim 1 , wherein the at least two proximal elements and/or the at least two distal elements are comprised of stainless steel, metals, nitinol, shape-memory alloy, polymer, silk, polyester, nylon or a combination thereof.

Claim 12

Dependent Claim 30 words

A device as in claim 1 , wherein the at least two distal elements and the at least two proximal elements are adapted to fixedly hold the leaflets as captured.

Claim 13

Dependent Claim 50 words

A device as in claim 1 , wherein the at least two proximal elements are configured to be disposed within the edges of the corresponding at least two distal elements when both the at least two proximal elements and corresponding at least two distal elements are in a deployed position.

Claim 14

Dependent Claim 31 words

A device as in claim 1 , wherein the at least two extendable distal elements and/or the at least two extendable proximal elements are held in the retracted position under tension.

Claim 15

Dependent Claim 33 words

A device as in claim 13 , wherein the tension is provided by a strand of material coupled to the at least two extendable distal elements and/or the at least two proximal elements.

Claim 16

Dependent Claim 15 words

A device as in claim 14 , wherein the strand of material comprises a suture.

Claim 17

Independent Claim 241 words

A method of repairing a cardiac valve of a patient having leaflets, said method comprising: providing an interventional tool comprising a catheter having a shaft, a proximal portion, a distal portion and a capture device detachably connected to the catheter, the capture device comprising at least two extendable distal elements and at least two extendable proximal elements, each of the elements having a proximal end adjacent the shaft and a distal end, wherein the at least two extendable distal elements and the at least two extendable proximal elements are disposed near the distal portion of said shaft and held in a retracted position adjacent to the shaft; advancing the distal portion through the vasculature to a location near the cardiac valve; deploying the at least two extendable distal elements and the at least two extendable proximal elements so the extendable proximal and distal elements self-expand either independently or together, in an outward radial direction from the shaft to a deployed position further away from the shaft than the retracted position or to positions therebetween so as to capture the valve leaflets; adjusting a length of the at least two extendable distal elements and the at least two extendable proximal elements protruding from the shaft, wherein the length traverses from the distal end of the element to a distal end of the shaft; and detaching the capture device from the interventional tool while said shaft is in the vasculature of the patient.

Claim 18

Independent Claim 241 words

Claim 19

Dependent Claim 30 words

A method as in claim 16 , wherein the deploying step comprises advancing the at least two distal elements or the at least two proximal elements outwardly from the shaft.

Claim 20

Dependent Claim 48 words

A method as in claim 16 , wherein the deploying step comprises angularly moving the at least two distal elements and/or the at least two proximal elements so that the at least two distal elements and/or the at least two proximal elements form an angle with the shaft.

Claim 21

Dependent Claim 36 words

A method as in claim 16 , further comprising angularly adjusting the at least two proximal elements and/or the at least two distal elements after capturing the valve leaflets to adjust the position of the leaflets.

Claim 22

Dependent Claim 22 words

A method as in claim 16 , wherein the at least two distal elements are disposed on opposite sides of the shaft.

Claim 23

Dependent Claim 24 words

A method as in claim 20 , wherein deploying the at least two distal elements comprises simultaneously deploying the at least two distal elements.

Claim 24

Dependent Claim 24 words

A method as in claim 16 , wherein each of the at least two proximal elements are disposed on opposite sides of the shaft.

Claim 25

Dependent Claim 24 words

A method as in claim 22 , wherein deploying the at least two proximal elements comprises simultaneously deploying the at least two proximal elements.

Claim 26

Dependent Claim 23 words

A method as in claim 16 , further comprising retracting the at least two distal elements and/or the at least two proximal elements.

Claim 27

Dependent Claim 41 words

A method as in claim 24 , further comprising repositioning the capture device in relation to the leaflets and redeploying the at least two distal elements and the at least two proximal element so that the valve leaflets are captured therebetween.

Claim 28

Dependent Claim 20 words

A method as in claim 16 , further comprising evaluating the cardiac valve for regurgitation while the leaflets are captured.

Claim 29

Dependent Claim 15 words

A method as in claim 16 , further comprising fixing the captured leaflets in place.

Claim 30

Dependent Claim 31 words

A method as in claim 16 , wherein the at least two extendable distal elements and/or the at least two extendable proximal elements are held in the retracted position under tension.

Claim 31

Dependent Claim 30 words

A method as in claim 28 , wherein the step of deploying the at least two extendable distal elements and the at least two proximal elements comprises releasing the tension.

Claim 32

Dependent Claim 33 words

A method as in claim 28 , wherein the tension is provided by a strand of material coupled to the at least two extendable distal elements and/or the at least two proximal elements.

Claim 33

Dependent Claim 15 words

A method as in claim 30 , wherein the strand of material comprises a suture.

References Cited (Backward Citations)

US2108206A Cited

US3378010A Cited

US3671979A Cited

US3874338A Cited

US3874388A Cited

US4056854A Cited

GB1598111A Cited

US4297749A Cited

WO1981000668A1 Cited

US4809695A Cited

US4425908A Cited

US4484579A Cited

GB2151142B Cited

EP0179562B1 Cited

DE3504292C1 Cited

US5478353A Cited

US5542949A Cited

US4917089A Cited

US5069679A Cited

US4994077A Cited

WO1991001689A1 Cited

US5209756A Cited

US5049153A Cited

US5411552A Cited

US5840081A Cited

WO1991018881A1 Cited

US5282845A Cited

US5042707A Cited

WO1992012690A1 Cited

US5171252A Cited

US5226429A Cited

US5769812A Cited

US5226911A Cited

US5261916A Cited

US5234437A Cited

US5423882A Cited

US5522873A Cited

EP0558031B1 Cited

US5417700A Cited

US5190554A Cited

US5254130A Cited

US5332402A Cited

US5571137A Cited

US5713910A Cited

US5312415A Cited

US5250071A Cited

US5383886A Cited

US5350397A Cited

US5718725A Cited

US5403326A Cited

US5855614A Cited

US5829447A Cited

WO1994018881A1 Cited

US5980455A Cited

US5571215A Cited

WO1994018893A1 Cited

US5797960A Cited

US5823956A Cited

US5536251A Cited

US5520701A Cited

US5450860A Cited

US5423858A Cited

US5741280A Cited

US5618306A Cited

US5478309A Cited

EP0684012A2 Cited

US5947363A Cited

US5554185A Cited

US5769863A Cited

US20030233038A1 Cited

US20050251001A1 Cited

US5690671A Cited

US5810847A Cited

US5640955A Cited

US5562678A Cited

US5836955A Cited

US6117144A Cited

US5797927A Cited

US5634932A Cited

US5716367A Cited

US5709707A Cited

US5719725A Cited

US5824065A Cited

US5879307A Cited

WO1997039688A3 Cited

US5833671A Cited

US5827237A Cited

WO1998007375A1 Cited

US6406420B1 Cited

US6755777B2 Cited

US20040133063A1 Cited

WO1998030153A1 Cited

WO1998032382A1 Cited

US5928224A Cited

US5989284A Cited

US5885271A Cited

US6269819B1 Cited

WO1999000059A1 Cited

US20050004583A1 Cited

WO1999001377A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2012-07-20	2013-01-19	2013-07-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2016-07-20	2017-01-19	2017-07-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2020-07-20	2021-01-19	2021-07-21	$7700.00	Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag

Select Category

Notes (Optional)