IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0794540
(2010-06-04)
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등록번호 |
US-8668718
(2014-03-11)
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발명자
/ 주소 |
- Euteneuer, Charles L.
- McCarville, Rebecca
- Frion, Duane
- Zenz-Olson, Nathaniel
- Feehan, Diane M.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
284 |
초록
▼
A staple for attaching a sheet-like implant to tissue or bone may, include first and second arms, and first and second flukes. In some embodiments, the first arm has a proximal end and a distal end, and the second arm has a proximal end and a distal end. A bridge extends from the proximal end of the
A staple for attaching a sheet-like implant to tissue or bone may, include first and second arms, and first and second flukes. In some embodiments, the first arm has a proximal end and a distal end, and the second arm has a proximal end and a distal end. A bridge extends from the proximal end of the first arm to the proximal end of the second arm. The first fluke has a proximal end abutting the distal end of the first arm, and the first fluke extends distally from the first arm. The first fluke has a lateral extent larger than a lateral extent of the first arm and is mounted eccentrically thereto. The first fluke includes a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when inserted therein. The second fluke has similar features. This arrangement causes the first and second flukes to rotate in response to a pullout force on the bridge. Methods for attaching a sheet-like implant to a target tissue are also disclosed.
대표청구항
▼
1. A staple for attaching a sheet-like implant to tissue or bone comprising: a first arm, having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm;a first fluke
1. A staple for attaching a sheet-like implant to tissue or bone comprising: a first arm, having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm;a first fluke having a proximal end abutting the distal end of the first arm, the first fluke extending distally from the first arm, the first fluke having a lateral extent larger than a lateral extent of the first arm and mounted eccentrically thereto, the first fluke including a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when inserted therein, the first fluke including a distal pointed surface, wherein there are no barbs or projections extending from the first arm towards the second arm, thereby causing the first fluke to rotate in response to a pullout force on the bridge; and,a second fluke having a proximal end abutting the distal end of the second arm and extending distally, the second fluke having a lateral extent larger than the lateral extent of the second arm and mounted eccentrically thereto with the second fluke including a proximal surface projecting at an outward angle in a proximal direction and away from the second arm near the proximal end of the second fluke to engage the tissue or bone when inserted therein, the second fluke including a distal pointed surface, wherein there are no barbs or projections extending from the second arm towards the first arm, thereby causing the second fluke to rotate in response to a pullout force on the bridge, wherein each of the first fluke and the second fluke include a lumen extending from the proximal end to the distal end thereof spaced laterally from the respective arm mounted thereto. 2. The staple of claim 1, wherein the lateral extent of each of the flukes is at least about three times the lateral extent of the arm adjacent thereto. 3. The staple of claim 2, wherein the lateral extent of the first arm and the second arm is about 0.3 mm to about 3.0 mm. 4. The staple of claim 2, wherein the first arm, second arm, first fluke, second fluke, proximal surfaces and bridge are integrally formed of a polymeric material. 5. The staple of claim 4, wherein the polymeric material is bioresorbable. 6. The staple of claim 1, wherein each lumen of the first and the second fluke is sized to receive a first stake and a second stake, respectively, of a staple delivery device therethrough. 7. The staple of claim 1, wherein the proximal surface of the first fluke engages the first stake and the proximal surface of the second fluke engages the second stake to receive pushing forces for inserting the staple into the tissue. 8. The staple of claim 1, wherein at least a portion of each of the lengths of the first and the second arms is flexible to allow flexing of the first and second flukes relative thereto to achieve rotational engagement of each fluke to the tissue or bone. 9. The staple of claim 1, wherein the proximal surface projecting at an outward angle of the first fluke includes a first notch that divides a portion of the proximal surface projecting at an outward angle into a first barb and a second barb. 10. The staple of claim 9, wherein when viewed along a longitudinal axis of the first arm the first notch bifurcates the portion of the proximal surface projecting at an outward angle to form the first barb and second barb. 11. The staple of claim 1, wherein the proximal surface projecting at an outward angle of the second fluke includes a first notch that divides a portion of the proximal surface projecting at an outward angle into a first barb and a second barb. 12. The staple of claim 11, wherein when viewed along a longitudinal axis of the second arm the first notch bifurcates the portion of the proximal surface projecting at an outward angle to form the first barb and second barb. 13. The staple of claim 1, the distal pointed surface of the first fluke including a distal surface projecting at an outward angle in a distal direction away from the distal end of the first arm to engage the tissue or bone when inserted therein, the distal pointed surface of the second fluke including a distal surface projecting at an outward angle in a distal direction away from the distal end of the second arm to engage the tissue or bone when inserted therein. 14. The staple of claim 1, wherein the distal pointed surface of the first fluke is asymmetrical relative to a longitudinal axis of the first fluke. 15. The staple of claim 1, wherein the distal pointed surface of the second fluke is asymmetrical relative to a longitudinal axis of the second fluke.
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