Patent US4946462A successfully refreshed from Google Patents.
US4946462A
Expired / Lapsed
US
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Arthroscopic guide and method
Assignee: Individual
•
Filing: 1988-12-12
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Granted: 1990-08-07
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Expires: 2008-12-12
Abstract
Abstract A guide and method for use in arthroscopic knee surgery for the repair and reconstruction of the anterior cruciate ligament. The guide is in the form of a elongated flexible wire, and it enables the semitendinosus and the gracilas tendons to be pulled through the knee joint in an expeditious manner in order to replace the anterior cruciate ligament.
Inventors
- 👤 Robert S. Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0805
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
A guide for use in arthroscopic knee surgery for the repair and reconstruction of the anterior cruciate ligament comprising: an elongated flexible wire, means attached to one end of the wire for receiving the end of a tendon to be pulled through the patient's knee by the guide and a receiver for receiving the other end of the wire to facilitate pulling the wire and tendon through the knee joint.
Claim 2
Dependent Claim
70 words
A guide for use in arthroscopic knee surgery for the repair and reconstruction of the anterior cruciate ligament comprising: an elongated flexible wire, means attached to one end of the wire for receiving the end of a tendon to be pulled through the patient's knee by the guide and a receiver for receiving the other end of the wire to facilitate pulling the wire and tendon through the knee joint.
Claim 3
Dependent Claim
29 words
The guide defined in claim 1, in which said means has a loop formed at said one end of the wire to permit the tendon to be sutured thereto.
Claim 4
Dependent Claim
28 words
The guide defined in claim 2, and which includes a plastic cone slidably mounted on said wire to serve as a cover for the loop and sutured tendon.
Claim 5
Dependent Claim
41 words
The guide defined in claim 1, in which said receiver is of the cannula type, and which includes a ball mounted on the other end of the wire to permit the wire to be inserted and held into said cannula-type receiver.
Claim 6
Independent Claim
86 words
A method for implanting a tendon into the knee joint of a patient which comprises drilling holes in the capsule of the femur and tibia, affixing the tendon to one end of a flexible wire, passing the flexible wire through one of the holes, passing a receiver through the other of the holes, manipulating the other end of the wire into the receiver, and pulling the receiver out of the other hole to cause the tendon to pass through the holes and through the knee joint.
Claim 7
Independent Claim
86 words
A method for implanting a tendon into the knee joint of a patient which comprises drilling holes in the capsule of the femur and tibia, affixing the tendon to one end of a flexible wire, passing the flexible wire through one of the holes, passing a receiver through the other of the holes, manipulating the other end of the wire into the receiver, and pulling the receiver out of the other hole to cause the tendon to pass through the holes and through the knee joint.
Claim 8
Dependent Claim
36 words
The method defined in claim 5, in which comprises the step of pulling the tendon until its end protrudes through the hole in the tibia, and suturing the protruding end of the tendon to the tibia.
Claim 9
Dependent Claim
61 words
The method defined in claim 5, in which the receiver is of the cannula type, and which includes the step of inserting the wire through the hole in the femur, inserting the cannula-type receiver through the hole in the tibia, and pulling the receiver out of the hole in the tibia to pull the wire and tendon through the knee joint.
Claim 10
Dependent Claim
26 words
The method defined in claim 5, and which includes the step of using a wire grasper to manipulate the end of the wire into the receiver.
Claim 11
Dependent Claim
36 words
The method defined in claim 7, and which comprises the step of pulling the tendon until its end protrudes through the hole in the tibia, and suturing the protruding end of the tendon to the tibia.
References Cited (Backward Citations)
US2833284A
Cited
US4461281A
Cited
US4172458A
Cited
US4450835A
Cited
US4580563A
Cited
US4643178A
Cited
US4622960A
Cited
US4712542A
Cited
US4796626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |