US5304181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for arthroscopic prosthetic knee replacement
Assignee: Zimmer Technology Inc
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Filing: 1991-10-09
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Granted: 1994-04-19
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Expires: 2011-10-09
Abstract
Abstract Methods and apparatus for prosthetic knee replacement permit preparation of tibial plateau and femoral condyle surfaces and implant of tibial and femoral protheses components with the use of arthroscopic surgical techniques. The bone surfaces are resected by moving a rotating milling cutter longitudinally across the bone surface and moving the rotating milling cutter substantially laterally across the bone. Cement is supplied between the prostheses and the bone surfaces after positioning of the prostheses on the bone, and cement bonding is enhanced by applying suction to the bone to draw the cement into the bone. The apparatus for resecting the bone surfaces includes a rotating milling cutter having a body with cutting edges and holes extending through the body communicating with the interior of the body. Suction is applied to the end of the body to draw out tissue fragments through the holes and out of the body.
Inventors
- 👤 Richard B. Caspari
- 👤 Jeffrey G. Roberts
- 👤 James T. Treace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1675; A61B17/1613; A61B17/1622; A61B17/1624; A61B17/17; A61B17/1739; A61B17/1764; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/38; A61B17/14; A61B17/15; A61B17/1615; A61B17/32; A61B17/320016; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7097; A61B17/7098; A61B17/88; A61B17/8802; A61B17/8805; A61B17/8822; A61B2017/00535; A61B2017/00544; A61B2017/1602; A61M; A61M1/00; A61M1/84; A61M2205/00; A61M2205/10; A61M2205/103; Y; Y10; Y10S; Y10S623/00; Y10S623/915; Y10S623/919; Y10T; Y10T407/00; Y10T407/19; Y10T407/1946; Y10T407/1948
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
105 words
Apparatus for resecting bone in the body of a patient comprising a rotatable elongate milling cutter having a body terminating at a distal end, a plurality of radially extending end cutting edges disposed on said distal end and a plurality of side cutting edges extending along said milling cutter body for resecting bone externally of said milling cutter body whereby bone chips are produced externally thereof, and an interior passage in said milling cutter body; and means on said milling cutter for evacuating bone chips from externally of said milling cutter body to said interior passage for evacuation from the patient's body through said passage.
Claim 2
Dependent Claim
105 words
Apparatus for resecting bone in the body of a patient comprising a rotatable elongate milling cutter having a body terminating at a distal end, a plurality of radially extending end cutting edges disposed on said distal end and a plurality of side cutting edges extending along said milling cutter body for resecting bone externally of said milling cutter body whereby bone chips are produced externally thereof, and an interior passage in said milling cutter body; and means on said milling cutter for evacuating bone chips from externally of said milling cutter body to said interior passage for evacuation from the patient's body through said passage.
Claim 3
Dependent Claim
36 words
Apparatus for resecting bone as recited in claim 1 wherein said milling cutter is hollow and said evacuating means includes at least one aperture disposed in said milling cutter body and communicating with said interior passage.
Claim 4
Dependent Claim
31 words
Apparatus for resecting bone as recited in claim 2 including a plurality of said apertures with at least one of said apertures disposed between each pair of said side cutting edges.
Claim 5
Dependent Claim
57 words
Apparatus for resecting bone as recited in claim 3 wherein said milling cutter includes a longitudinal axis, said distal end cutting edges are disposed in a plane extending transverse to said longitudinal axis of said milling cutter and said side cutting edges each extend from one of said distal end cutting edges and having a helical configuration.
Claim 6
Dependent Claim
91 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; means for mounting said platform means relative to the bone; and longitudinal adjustment means coupled with said platform means for moving said platform means and said cutting plane relative to said mounting means in a direction perpendicular to said cutting plane.
Claim 7
Dependent Claim
91 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; means for mounting said platform means relative to the bone; and longitudinal adjustment means coupled with said platform means for moving said platform means and said cutting plane relative to said mounting means in a direction perpendicular to said cutting plane.
Claim 8
Dependent Claim
28 words
Apparatus for resecting bone as recited in claim 5 wherein said platform means includes a pivotally mounted slide member supporting said milling cutter means for sliding movement therealong.
Claim 9
Dependent Claim
24 words
Apparatus for resecting bone as recited in claim 6 wherein said platform means includes stop means for limiting pivotal movement of said slide member.
Claim 10
Dependent Claim
42 words
Apparatus for resecting bone as recited in claim 6 wherein said platform means includes a support member pivotally mounting said slide member and selectively engageable clamp means for securing said slide member at a selected angular position relative to said support member.
Claim 11
Dependent Claim
55 words
Apparatus for resecting a bone as recited in claim 8 wherein said slide member supports said milling cutter means for movement in said cutting plane, said support member is movably mounted to adjust the position of said milling cutter means in said cutting plane, and said longitudinal adjustment means is coupled with said support member.
Claim 12
Dependent Claim
31 words
Apparatus for resecting bone as recited in claim 9 wherein said platform means includes angular adjustment means coupled with said support member for adjusting the angular orientation of said cutting plane.
Claim 13
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the angular position of said platform means relative to said jig.
Claim 14
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the angular position of said platform means relative to said jig.
Claim 15
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the longitudinal position of said platform means relative to said jig.
Claim 16
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the longitudinal position of said platform means relative to said jig.
Claim 17
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the lateral position of said platform means relative to said jig.
Claim 18
Dependent Claim
93 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the lateral position of said platform means relative to said jig.
Claim 19
Dependent Claim
95 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the longitudinal and lateral positions of said platform means relative to said jig.
Claim 20
Dependent Claim
95 words
Apparatus for resecting a bone in the body comprising milling cutter means; platform means for supporting said milling cutter means for movements therealong in a cutting plane and including means for supporting said milling cutter means for longitudinal and pivotal movements relative to said platform means in said cutting plane; and means for mounting said platform means relative to the bone, said mounting means including a jig for attachment to the bone and adjustment means coupled with said platform means for adjusting the longitudinal and lateral positions of said platform means relative to said jig.
References Cited (Backward Citations)
US1869514A
Cited
US3037264A
Cited
US3229427A
Cited
US3456316A
Cited
US3548476A
Cited
US3694099A
Cited
US4349018A
Cited
US4567885A
Cited
US4487203A
Cited
US4738254A
Cited
US4738253A
Cited
US4524766A
Cited
US4646729A
Cited
US4653488A
Cited
US4825857A
Cited
US4421112A
Cited
US4457307A
Cited
US4567886A
Cited
US4502483A
Cited
US4467801A
Cited
US4574794A
Cited
US4791919A
Cited
US4677973A
Cited
US4721104A
Cited
US4787383A
Cited
US4703751A
Cited
US4736737A
Cited
US4722330A
Cited
US4757810A
Cited
US4773407A
Cited
US4719908A
Cited
US4759350A
Cited
US4718413A
Cited
US4822362A
Cited
US4921375A
Cited
US5047032A
Cited
US4936313A
Cited
US4893968A
Cited
EP0333651A1
Cited
US4862881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-18 | 1997-10-18 | 1998-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-18 | 2001-10-18 | 2002-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-18 | 2005-10-18 | 2006-04-19 | $7700.00 | Window Closed / Lapsed |