EP0504915A1
Expired / Lapsed
EP
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Orthopaedic fastener
Assignee: United States Surgical Corp
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Filing: 1992-03-20
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Granted: —
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Expires: 2012-03-20
Abstract
Abstract Soft tissue is secured to bone with a surgical fastener 100 having expandable legs 115. The surgical fastener is implanted into a predrilled hole in the bone and the legs are expanded by pulling a slidable pin 200 with a flared distal end 206. The pin includes a breakaway notch 205. The fastener may be fabricated from resorbable material and may be implanted arthroscopically.
Inventors
- 👤 Thomas W. Sander
- 👤 Daniel R. Lee
- 👤 Robert Gangnath
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 14:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61L; A61L31/00; A61L31/14; A61L31/148; A61B; A61B17/00; A61B17/04; A61B17/0401; A61B2017/0408; A61B2017/042; A61B2017/0422; A61B2017/0424; A61B2017/0438; A61B17/06; A61B17/06114; A61B2017/06142; A61F2/0805; A61F2002/0817; A61F2002/0823; A61F2002/0835; A61F2002/0847; A61F2002/0858; A61F2002/0876; A61F2002/0888
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
72 words
l. A surgical fastener for securing soft tissue to bone, which comprises: a) a rivet having an axial bore, distal locking means for frictionally engaging the bone to secure the rivet thereto and a proximal head portion; and b) a pin receivable into said bore and proximally slidable therein, said pin having means for activating said rivet locking means in response to a proximal locking movement of said pin within said bore.
Claim 2
Dependent Claim
13 words
A fastener as claimed in claim l and fabricated from a resorbable material.
Claim 3
Dependent Claim
75 words
A surgical fastener for securing soft tissue to bone, which comprises: a) a rivet of resorbable material, having an axial bore, distal locking means for frictionally engaging the bone to secure the rivet thereto, and a proximal head portion; and b) a pin of resorbable material receivable into said bore and slidable therein, said pin having means for activating said rivet locking means in response to a locking movement of said pin within said bore.
Claim 4
Dependent Claim
13 words
A fastener as claimed in claim 3, wherein said locking movement is proximal.
Claim 5
Dependent Claim
23 words
A fastener as claimed in any one of the preceding claims, wherein said locking means comprises a radially expandable part of said rivet.
Claim 6
Dependent Claim
16 words
A fastener as claimed in claim 5 wherein the expandable part comprises at least two legs.
Claim 7
Dependent Claim
18 words
A fastener as claimed in any one of the preceding claims wherein the distal locking means comprises barbs.
Claim 8
Dependent Claim
37 words
A fastener as claimed in any one of the preceding claims wherein said head portion comprises means for holding soft tissue, said holding means comprising a plurality of tissue engaging barbs projecting distally from said head portion.
Claim 9
Dependent Claim
32 words
A fastener as claimed in any one of the preceding claims wherein said means for activating the rivet locking means comprises a flared portion at the distal end portion of said pin.
Claim 10
Dependent Claim
25 words
l0. A fastener as claimed in claim 9, wherein said pin further comprises a portion of substantially uniform diameter disposed distally of said flared portion.
Claim 11
Dependent Claim
31 words
ll. A fastener as claimed in claim 9 or l0, wherein said flared portion is engageable with an inner surface of said locking means to expand said locking means radially outward.
Claim 12
Dependent Claim
25 words
l2. A fastener as claimed in claim 9, l0 or ll, wherein said flared portion has a diameter greater than the diameter of said bore.
Claim 13
Dependent Claim
61 words
l3. A fastener as claimed in any one of the preceding claims, wherein the locking movement is proximal and the pin includes a circumferential notch defining a proximal portion and a distal portion, said notch providing a breaking means for separating said proximal portion from said distal portion when a pulling force of sufficient magnitude is applied to said proximal portion.
Claim 14
Dependent Claim
56 words
l4. A fastener as claimed in any one of the preceding claims wherein said pin comprises at least one rib formed on an outer surface, and said bore comprises a complementary surface to engage said at least one rib of said pin to restrict movement of said pin in a direction opposite to the locking movement.
Claim 15
Dependent Claim
29 words
l5. A fastener as claimed in any one of the preceding claims, with an eyelet positioned over the proximal end of the pin to facilitate gripping of said pin.
Claim 16
Dependent Claim
24 words
l6. A fastener as claimed in any one of the preceding claims, wherein said pin has a rounded conical tip at the distal end.
Claim 17
Dependent Claim
82 words
l7. A surgical fastener for securing soft tissue to bone comprising: a rivet having an axial bore, a proximal head portion and an expandable distal portion, said rivet being composed of a resorbable material; and a pin slidably received in said bore, said pin having a distal portion having a diameter greater that a diameter of said distal portion of said rivet to thereby expand said distal portion upon sliding movement of said pin, said pin being composed of a resorbable material.
References Cited (Backward Citations)
GB2084468A
Cited
EP0232049A1
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EP0238223A2
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DE8633339U1
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FR2622430A1
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EP0409364B1
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