Patent US5795353A successfully refreshed from Google Patents.
US5795353A
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Joint resurfacing system
Assignee: Advanced Bio Surfaces Inc
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Filing: 1996-11-02
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Granted: 1998-08-18
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Expires: 2016-11-02
Abstract
Abstract A system for resurfacing orthopedic joints by arthroscopic means. The system involves a method that includes the delivery of a curable biomaterial, and the use of minimally invasive means to prepare an injury site, and then deliver, cure and shape a curable biomaterial at the site of injury.
Inventors
- 👤 Jeffrey C. Felt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:12
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/04; A61L29/041; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1739; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30756; A61F2/44; A61F2/441; A61F2/46; A61F2/4601; A61F2/4603; A61F2/4611; A61L27/00; A61L27/14; A61L27/18; A61L29/06; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/4854; C08G18/67; C08G18/69; A61B1/00; A61B1/00163; A61B1/00165; A61B17/00234; A61B17/1662; A61B17/1675; A61B17/1682; A61B17/1686; A61B2017/00535; A61F2/28; A61F2/30767; A61F2/30988; A61F2/3099; A61F2/32; A61F2/38; A61F2/40; A61F2/4081; A61F2/42; A61F2/4202; A61F2/442; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30024; A61F2002/30316; A61F2002/30535; A61F2002/30581; A61F2002/30583; A61F2/3094; A61F2/30942; A61F2002/30957; A61F2/4225; A61F2002/4233; A61F2002/4635; A61F2210/00; A61F2210/0085; A61F2250/00; A61F2250/0014; A61F2250/0021; A61L2430/00; A61L2430/38; Y; Y10; Y10S; Y10S623/00; Y10S623/915; Y10S623/919; Y10S623/92; Y10S623/923
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A system comprising: (a) a plurality of components adapted to be mixed to form a flowable polyurethane biomaterial for delivery to the surface of a knee joint where the biomaterial would cure to provide a permanent replacement material for natural bone or cartilage of the joint, and (b) a delivery instrument for delivery of the biomaterial to the knee joint, the instrument being adapted to mix the plurality of components at the time of use and to inject the mixed components through a cannula adapted to be inserted through a tissue access site and operated under arthroscopic control and visualization, and (c) an arthroscopic drill bit for use in drilling one or more anchor points into subchondral bone of the knee wherein the anchor points formed by the drill bit prevent rotational or translational movement of the cured biomaterial within the knee joint.
Claim 2
Independent Claim
143 words
A system comprising: (a) a plurality of components adapted to be mixed to form a flowable polyurethane biomaterial for delivery to the surface of a knee joint where the biomaterial would cure to provide a permanent replacement material for natural bone or cartilage of the joint, and (b) a delivery instrument for delivery of the biomaterial to the knee joint, the instrument being adapted to mix the plurality of components at the time of use and to inject the mixed components through a cannula adapted to be inserted through a tissue access site and operated under arthroscopic control and visualization, and (c) an arthroscopic drill bit for use in drilling one or more anchor points into subchondral bone of the knee wherein the anchor points formed by the drill bit prevent rotational or translational movement of the cured biomaterial within the knee joint.
Claim 3
Dependent Claim
29 words
A system according to claim 1 wherein the cannula is adapted to deliver the curable biomaterial into one or more anchor points in the subchondral bone of the knee.
Claim 4
Dependent Claim
22 words
A system according to claim 1 wherein the delivery cannula has an inner diameter of about 2 mm to about 6 mm.
Claim 5
Dependent Claim
22 words
A system according to claim 1 wherein the cured biomaterial is adapted for use in permanent engagement with the natural joint tissue.
Claim 6
Dependent Claim
45 words
A system according to claim 1 wherein the cannula is adapted to deliver the curable biomaterial into one or more anchor points in the subchondral bone of the knee and the delivery cannula has an inner diameter of about 2 mm to about 6 mm.
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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) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |