US5795353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint resurfacing system
Assignee: Advanced Bio Surfaces Inc
•
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 04:25
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.
References Cited (Backward Citations)
US29345A
Cited
US3879767A
Cited
US3805767A
Cited
US4085466A
Cited
US4052753A
Cited
US4203444B1
Cited
US4203444A
Cited
US4245623A
Cited
US4274414A
Cited
US4385404A
Cited
US4292972A
Cited
US4446578A
Cited
US4570270A
Cited
US4722948A
Cited
US4705038A
Cited
US4842578A
Cited
US4834729A
Cited
US4983179A
Cited
US4880610A
Cited
US5278201A
Cited
US5007940A
Cited
US5082803A
Cited
US5067964A
Cited
US5228459A
Cited
US5263498A
Cited
US5171244A
Cited
US5304181A
Cited
US5395376A
Cited
US5385469A
Cited
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 |