US4671280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical fastening device and method for manufacture
Assignee: Ethicon Inc
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Filing: 1985-05-13
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Granted: 1987-06-09
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Expires: 2005-05-13
Abstract
Abstract A tissue fastening device comprising (a) a fastener member having a pair of legs extending from the same side of a connecting cross piece, said fastener member adapted to be placed on one side of the tissue to be joined with the legs penetrating the tissue, said fastener member being an oriented cystalline polymeric material, whereby the fastener member has sufficient inherent strength and stiffness so said legs can penetrate the tissue to be fastened, and (b) a receiver member to secure said fastener member in place.
Inventors
- 👤 Glen C. Dorband
- 👤 Alfred Liland
- 👤 Edgar Menezes
- 👤 Peter Steinheuser
- 👤 Nicholas M. Popadiuk
- 👤 Stephen J. Failla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/02; A; A61; A61B; A61B17/00; A61B17/064; A61B17/0643; A61L; A61L31/00; A61L31/04; A61L31/06; A61L31/14; A61L31/148; B29C55/00; B29C55/005; B29C69/00; B29C69/001; B29C69/002; B29C69/003; A61F; A61F2/00; A61F2/0059; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30084; B29K; B29K2067/00; B29L; B29L2031/00; B29L2031/727; B29L2031/753
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
A tissue fastening device comprising (a) a fastener member having a pair of legs extending from the same side of a connecting cross piece, said fastener member adapted to be placed on one side of the tissue to be joined with the legs penetrating the tissue, said fastener member being an oriented crystalline polymeric material, whereby the fastener member has sufficient inherent strength and stiffness so said legs can penetrate the tissue to be fastened, and (b) a receiver member to secure said fastener member in place, whereby said tissue fastening device retains measurable separation strength after 21 days immersion in physiological saline solution at 37° C. and a pH of 7.2, wherein the said oriented crystalline polymeric material has a degree of orientation such that it has a birefringence Δn of at least 0.005 and a degree of crystallinity of at least 10 percent, as determined by X-ray diffraction.
Claim 2
Dependent Claim
150 words
A tissue fastening device comprising (a) a fastener member having a pair of legs extending from the same side of a connecting cross piece, said fastener member adapted to be placed on one side of the tissue to be joined with the legs penetrating the tissue, said fastener member being an oriented crystalline polymeric material, whereby the fastener member has sufficient inherent strength and stiffness so said legs can penetrate the tissue to be fastened, and (b) a receiver member to secure said fastener member in place, whereby said tissue fastening device retains measurable separation strength after 21 days immersion in physiological saline solution at 37° C. and a pH of 7.2, wherein the said oriented crystalline polymeric material has a degree of orientation such that it has a birefringence Δn of at least 0.005 and a degree of crystallinity of at least 10 percent, as determined by X-ray diffraction.
Claim 3
Dependent Claim
168 words
A tissue fastening device comprising (a) a fastener member having a pair of legs extending from the said side of a connecting cross piece, said fastener member adapted to be placed on one side of the tissue to be joined with the legs of said fastener member penetrating the tissue, and (b) a receiver member adapted to be placed on the opposite side of the tissue to be joined and engaging said legs of said fastener member to secure the device in place, said fastener member being an oriented crystalline polymeric material, whereby the fastener member has sufficient inherent strength so said legs can penetrate the tissue and said fastener member remains secured to said receiver member with measurable strength for at least seven days after implantation in said tissue, wherein the said oriented crystalline polymeric material has a degree of orientation such that it has a birefringence Δn of at least 0.005 and a degree of crystallinity of at least 10 percent, as determined by X-ray diffraction.
Claim 4
Dependent Claim
168 words
A tissue fastening device comprising (a) a fastener member having a pair of legs extending from the said side of a connecting cross piece, said fastener member adapted to be placed on one side of the tissue to be joined with the legs of said fastener member penetrating the tissue, and (b) a receiver member adapted to be placed on the opposite side of the tissue to be joined and engaging said legs of said fastener member to secure the device in place, said fastener member being an oriented crystalline polymeric material, whereby the fastener member has sufficient inherent strength so said legs can penetrate the tissue and said fastener member remains secured to said receiver member with measurable strength for at least seven days after implantation in said tissue, wherein the said oriented crystalline polymeric material has a degree of orientation such that it has a birefringence Δn of at least 0.005 and a degree of crystallinity of at least 10 percent, as determined by X-ray diffraction.
Claim 5
Dependent Claim
15 words
The tissue fastening device of claim 1 wherein said polymeric material is an absorbable polymer.
Claim 6
Dependent Claim
15 words
The tissue fastening device of claim 2 wherein said polymeric material is an absorbable polymer.
Claim 7
Dependent Claim
22 words
The tissue fastening device of claim 3 wherein said absorbable polymer is a lactide polymer, a glycolide polymer, or a lactide/glycolide copolymer.
Claim 8
Dependent Claim
22 words
The tissue fastenting device of claim 4 wherein said absorbable polymer is a lactide polymer, a glycolide polymer, or a lactide/glycolide copolymer.
Claim 9
Dependent Claim
24 words
The tissue fastening device of claim 5 wherein the fastener member is made of a lactide/glycolide copolymer and wherein the receiver member is poly(p-dioxanone).
Claim 10
Dependent Claim
24 words
The tissue fastening device of claim 6 wherein the fastener member is made of a lactide/glycolide copolymer and wherein the receiver member is poly(p-dioxanone).
Claim 11
Dependent Claim
19 words
The tissue fastening device of claim 7 wherein said copolymer is made from a 90/10 (mol percent) glycolide/lactide mixture.
Claim 12
Dependent Claim
19 words
The tissue fastening device of claim 8 wherein said copolymer is made from a 90/10 (mole percent) glycolide/lactide mixture.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |