Methods and apparatus having bowstring-like staple delivery to a target tissue
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/04
A61B-017/10
A61B-017/068
A61B-017/064
A61F-002/00
A61F-002/08
A61F-002/30
출원번호
US-0703347
(2015-05-04)
등록번호
US-9931119
(2018-04-03)
발명자
/ 주소
Euteneuer, Charles L.
McCarville, Rebecca
Frion, Duane
Zenz-Olson, Nathaniel
Feehan, Diane M.
출원인 / 주소
Rotation Medical, Inc.
대리인 / 주소
Seager, Tufte & Wickhem LLP
인용정보
피인용 횟수 :
0인용 특허 :
329
초록▼
Devices for attaching a sheet-like implant to a target tissue include a sheath and a staple push rod. The sheath has a distal end configured to be pressed against the target tissue. The staple push rod is disposed within at least a portion of the sheath and is slidable relative thereto. The staple p
Devices for attaching a sheet-like implant to a target tissue include a sheath and a staple push rod. The sheath has a distal end configured to be pressed against the target tissue. The staple push rod is disposed within at least a portion of the sheath and is slidable relative thereto. The staple push rod includes a pair of stakes. Each stake is dimensioned to abut a surface of a staple to apply pushing forces thereto. The stakes are biased to assume a bow-like shape such that an intermediate portion of a staple extends tautly between the first stake and the second stake when the stakes are extending beyond the distal end of the tubular member. Methods for attaching a sheet-like implant to a target tissue are also disclosed.
대표청구항▼
1. A device for attaching a sheet-like implant to a target tissue, comprising: a sheath having a proximal end and a distal end; anda staple push rod disposed within at least a portion of the sheath and slidable relative thereto, the staple push rod including a pair of stakes,the pair of stakes engag
1. A device for attaching a sheet-like implant to a target tissue, comprising: a sheath having a proximal end and a distal end; anda staple push rod disposed within at least a portion of the sheath and slidable relative thereto, the staple push rod including a pair of stakes,the pair of stakes engageable with a staple to apply pushing forces thereto,wherein the first stake and the second stake extend away from each other when the stakes are extending beyond the distal end of the sheath;wherein an intermediate portion of the staple extends tautly in tension between the first stake and the second stake when the stakes are extending beyond the distal end of the sheath. 2. The device of claim 1, wherein each stake has a distal portion and a proximal portion, each distal portion being dimensioned to extend into a passage defined by the staple, each proximal portion having a width larger than a width of each distal portion so that a shoulder of each proximal portion contacts a proximal surface of the staple to apply pushing forces thereto. 3. The device of claim 1, wherein, when disposed within the sheath, the stakes are biased to expand against an inner surface of the sheath. 4. The device of claim 1, wherein the intermediate portion of the staple includes a first arm, a second arm, and a bridge. 5. The device of claim 1, wherein: the sheath defines a distal opening; andrelative movement between the stakes and the sheath causes the stakes to advance through the distal opening defined by the sheath. 6. The device of claim 1, wherein: the stakes have a first lateral extent when the stakes are extending beyond the distal end of the sheath; andthe stakes have a second, smaller lateral extent when disposed within the sheath. 7. The device of claim 1, wherein: each staple includes a pair of arms ending in flukes; anda distal-most portion of each stake extends beyond a leading edge of each fluke. 8. A device for attaching a sheet-like implant to a target tissue, comprising: a sheath having a proximal end and a distal end;a staple push rod disposed within at least a portion of the sheath and slidable relative thereto, the staple push rod including a plurality of stakes,wherein the stakes are biased to diverge from one another; anda staple having a first arm having a distal end and a second arm having a distal end, wherein each stake is dimensioned to contact a portion of the staple and apply pushing forces thereto;wherein, when the stakes extend distally beyond the sheath, the stakes cause the distal ends of the first and second arms of the staple to diverge from one another. 9. The device of claim 8, wherein the stakes cause the distal ends of the staple to diverge from one another so an intermediate portion of the staple extends tautly in tension between the stakes. 10. The device of claim 8, wherein, when the stakes are disposed within the sheath, the stakes diverge to contact an inner surface of the sheath. 11. The device of claim 8, wherein each stake has a distal portion and a proximal portion, each distal portion being dimensioned to extend into a passage defined by the staple. 12. The device of claim 8, wherein: when the stakes are disposed within the sheath, the stakes are positioned away from each other a first distance, andwhen the stakes are uncovered by the sheath, the stakes diverge from each other a second, greater distance. 13. An apparatus for attaching a sheet-like implant to a target tissue, comprising: a sheath having a proximal end and a distal end;a staple push rod disposed within at least a portion of the sheath and slidable relative thereto, the staple push rod including a plurality of stakes,wherein the stakes are biased to diverge from one another; anda staple engageable with the plurality of stakes, the staple including a first arm having a distal end and a second arm having a distal end;wherein: each stake is dimensioned to contact a portion of the staple and apply pushing forces thereto,the staple has a deployed configuration and an undeployed configuration,in the undeployed configuration, the distal ends of the staple are spaced apart from each other a first distance,in the deployed configuration, the distal ends of the staple are spaced apart from each other a second, greater distance, andwhen the stakes are uncovered by the sheath, the stakes cause the staple to transition from the undeployed configuration to the deployed configuration. 14. The apparatus of claim 13, wherein in the deployed configuration, the ends of the staple diverge such that an intermediate portion of the staple extends tautly in tension between the ends of the staple. 15. The apparatus of claim 13, wherein: when the stakes are disposed within the sheath, the stakes are positioned away from each other a first distance, andwhen the stakes are uncovered by the sheath, the stakes diverge from each other by a second, greater distance. 16. The apparatus of claim 13, wherein each stake has a distal portion and a proximal portion, each distal portion being dimensioned to extend into a passage defined by the staple. 17. The apparatus of claim 13, wherein: the staple includes a fluke located at the distal end of each of the first and second arms; anda distal-most portion of each stake extends beyond a leading edge of each fluke.
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