Patent US3821950A successfully refreshed from Google Patents.
US6863671B1
Expired / Lapsed
US
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Biodegradable fixation element
Assignee: Karl Storz SE and Co KG
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Filing: 2000-10-20
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Granted: 2005-03-08
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Expires: 2020-10-20
Abstract
Abstract A biodegradable fixation element is provided for anchoring a transplant on bone. A rigid body is made of a biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body. Numerous perforations are provided in said wall of said body for allowing growth of bone material into said interior of said body via said numerous perforations. It is proposed that the perforations are formed between said anchoring members and said perforations are formed as holes passing through said wall of said body (FIG. 1 ).
Inventors
- 👤 Michael Strobel
- 👤 Andreas Weiler
- 👤 Andre Timmermans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61F2002/0817; A61F2002/0841; A61F2002/0847; A61F2002/0858; A61F2002/0876; A61F2002/0882; A61F2210/00; A61F2210/0004; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/908
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
Interference screw for anchoring a tendon transplant within a bore channel in a bone by laterally urging said tendon transplant within said bore channel via said interference screw against a wall of said bore channel, comprising a rigid body made of biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body, a threading provided at said outer side of said rigid body for anchoring with said wall of said bore, numerous holes passing through said wall of said body, said holes are provided between said threading in said body, and wherein said screw body tapers in a penetrating end region extending from a penetrating end to a maximum core diameter, said tapering penetrating end region having at least one winding of said threading.
Claim 2
Dependent Claim
132 words
Interference screw for anchoring a tendon transplant within a bore channel in a bone by laterally urging said tendon transplant within said bore channel via said interference screw against a wall of said bore channel, comprising a rigid body made of biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body, a threading provided at said outer side of said rigid body for anchoring with said wall of said bore, numerous holes passing through said wall of said body, said holes are provided between said threading in said body, and wherein said screw body tapers in a penetrating end region extending from a penetrating end to a maximum core diameter, said tapering penetrating end region having at least one winding of said threading.
Claim 3
Dependent Claim
23 words
The interference screw of claim 1 , wherein no holes are provided up until a first complete winding in said penetrating end region.
Claim 4
Independent Claim
177 words
A method for anchoring a tendon transplant within a bore channel in a bone comprising the steps of: providing a bore channel in a bone, placing a tendon transplant within said bore channel, said tendon transplant having an outer diameter smaller than a diameter of said bore channel, screwing an interference screw into a space between said bore channel and said tendon transplant for laterally urging said tendon transplant between said interference screw and said bore channel, said interference screw comprising: a rigid body made of biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body, a threading provided at said outer side of said rigid body for anchoring with said wall of said bore, numerous holes passing through said wall of said body, said holes are provided between said threading in said body, and wherein said screw body tapers in a penetrating end region extending from a penetrating end to a maximum core diameter, said tapering penetrating end region having at east one winding of said threading.
Claim 5
Independent Claim
177 words
A method for anchoring a tendon transplant within a bore channel in a bone comprising the steps of: providing a bore channel in a bone, placing a tendon transplant within said bore channel, said tendon transplant having an outer diameter smaller than a diameter of said bore channel, screwing an interference screw into a space between said bore channel and said tendon transplant for laterally urging said tendon transplant between said interference screw and said bore channel, said interference screw comprising: a rigid body made of biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body, a threading provided at said outer side of said rigid body for anchoring with said wall of said bore, numerous holes passing through said wall of said body, said holes are provided between said threading in said body, and wherein said screw body tapers in a penetrating end region extending from a penetrating end to a maximum core diameter, said tapering penetrating end region having at east one winding of said threading.
References Cited (Backward Citations)
DE3027138A1
Cited
US4484570A
Cited
US5084050A
Cited
US5129904A
Cited
US5047030A
Cited
US5470334A
Cited
EP0502698B1
Cited
WO1993015694A1
Cited
US5860973A
Cited
JPH09110220A
Cited
WO1997037603A1
Cited
US5968047A
Cited
WO1999044544A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-03-07 | 2008-09-06 | 2009-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-07 | 2012-09-06 | 2013-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-07 | 2016-09-06 | 2017-03-08 | $7700.00 | Window Closed / Lapsed |