US5885299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for implant insertion
Assignee: Howmedica Osteonics Corp
•
Filing: 1996-03-14
•
Granted: 1999-03-23
•
Expires: 2016-03-14
Abstract
Abstract Apparatus for and methods of inserting implants are disclosed wherein the apparatus includes a handle portion and a body portion attached to the handle portion and defining a longitudinal axis. The body portion includes an outer tubular member fixed relative to the handle portion for rotation therewith about the longitudinal axis. The outer tube member has first implant engaging structure adjacent a distal end. An inner tubular member is disposed at least partially within the outer tubular member and is mounted for longitudinal motion relative to the outer tubular member. Second implant engaging structure is positioned adjacent a distal end of the inner tubular member. The body portion further includes an inner shaft, coaxially mounted at least partially within the inner tubular member for independent rotation relative to the inner and outer tubular members, the inner shaft having third implant engaging structure adjacent a distal end. In a method for inserting an implant having a hollow portion with a closed distal end and a removable cap, the first, second and third implant engaging structures are attached to the implant with at least one of the engaging structure attached to the removable cap and another of the engaging structure attached to the hollow portion. The implant is preferably preloaded with bone chips and/or bone growth inducing substances prior to attachment. Thereafter, the preloaded implant is inserted into the desired surgical location.
Inventors
- 👤 Charles J. Winslow
- 👤 Steven T. Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4611; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/8605; A61B17/861; A61B17/88; A61B17/8875; A61B17/8877; A61B17/8886; A61B17/8888; A61F2/44; A61F2/4455; A61F2/446; A61F2/4601; A61F2/4637; A61F2/30721; A61F2/30744; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30121; A61F2002/30138; A61F2002/30143; A61F2002/30154; A61F2002/30199; A61F2002/30205; A61F2002/3021; A61F2002/30217; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30317; A61F2002/30327; A61F2002/30329; A61F2002/30331; A61F2002/30405; A61F2002/30535; A61F2002/30593; A61F2002/30617; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/30795; A61F2002/30797; A61F2002/30813; A61F2002/3082; A61F2002/3085; A61F2002/30863; A61F2002/30873; A61F2/3094; A61F2002/30968; A61F2002/448; A61F2002/4625; A61F2002/4627; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0017; A61F2230/0021; A61F2230/0063; A61F2230/0067; A61F2230/0069; A61F2250/00; A61F2250/0014; A61F2250/0039; A61F2250/0058; A61F2250/0096; A61F2250/0097; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
166 words
Apparatus for implant insertion comprising: a housing portion; a body portion attached to the housing portion and defining a longitudinal axis, the body portion including: an outer member mounted to the housing portion, the outer member having first implant engaging structure adjacent a distal end thereof; an inner member mounted within the outer member and being rotatable independent of the outer member, the inner member having second implant engaging structure adjacent a distal end thereof; an inner shaft coaxially mounted at least partially within the inner member for independent rotation relative to the inner and outer members, the inner shaft having third implant engaging structure adjacent a distal end thereof; and a first actuator mounted adjacent the housing and operatively connected to the inner member, the first actuator movable to cause corresponding longitudinal movement of the inner member; and a second actuator mounted adjacent the housing and operatively connected to the inner shaft, the second actuator movable to cause corresponding rotational movement of the inner shaft.
Claim 2
Dependent Claim
166 words
Apparatus for implant insertion comprising: a housing portion; a body portion attached to the housing portion and defining a longitudinal axis, the body portion including: an outer member mounted to the housing portion, the outer member having first implant engaging structure adjacent a distal end thereof; an inner member mounted within the outer member and being rotatable independent of the outer member, the inner member having second implant engaging structure adjacent a distal end thereof; an inner shaft coaxially mounted at least partially within the inner member for independent rotation relative to the inner and outer members, the inner shaft having third implant engaging structure adjacent a distal end thereof; and a first actuator mounted adjacent the housing and operatively connected to the inner member, the first actuator movable to cause corresponding longitudinal movement of the inner member; and a second actuator mounted adjacent the housing and operatively connected to the inner shaft, the second actuator movable to cause corresponding rotational movement of the inner shaft.
Claim 3
Dependent Claim
21 words
Apparatus as in claim 1 including a handle portion releasably attached to one of the housing portion and the body portion.
Claim 4
Dependent Claim
11 words
Apparatus as in claim 2 wherein the handle portion is T-shaped.
Claim 5
Dependent Claim
26 words
Apparatus as in claim 1 wherein the first actuator includes a wheel positioned on the inner member for independent rotation thereof relative to the outer member.
Claim 6
Dependent Claim
28 words
Apparatus as in claim 1 wherein the second actuator includes a wheel positioned on the inner shaft for independent rotation thereof relative to the outer and inner members.
Claim 7
Dependent Claim
25 words
Apparatus as in claim 1 wherein the first implant engaging structure comprises a pair of tabs projecting from the distal end of the outer member.
Claim 8
Dependent Claim
24 words
Apparatus as in claim 1 wherein the second implant engaging structure comprises a polygonal structure extending from the distal end of the inner member.
Claim 9
Dependent Claim
24 words
Apparatus as in claim 1 wherein the third implant engaging structure comprises a threaded portion formed on the distal end of the inner shaft.
Claim 10
Dependent Claim
18 words
Apparatus as in claim 1 wherein the first implant engaging structure is removably mounted to the outer member.
Claim 11
Dependent Claim
207 words
Apparatus for implant insertion comprising: a handle portion; and a body portion defining a longitudinal axis and having a proximal end configured to engage the handle portion, a distal end configured to engage an implant, and a housing fixed relative to the proximal end and positioned intermediate the proximal and distal ends, the body portion including an outer tubular member fixed to the housing and extending distally therefrom, the outer tubular member having first implant engaging structure at a distal end, an inner tubular member disposed at least partially within the outer tubular member and mounted for longitudinal motion relative to the outer tubular member, the inner tubular member including a first wheel confined at least partially within a first cavity in the housing for rotating the inner tubular member relative to the outer tubular member, the inner tubular member having second implant engaging structure adjacent a distal end and an inner shaft, coaxially mounted at least partially within the inner tubular member, the inner shaft including a second wheel confined at least partially within a second cavity in the housing for independently rotating the inner shaft relative to the inner and outer tubular members, the inner shaft having third implant engaging structure adjacent a distal end.
Claim 12
Dependent Claim
207 words
Apparatus for implant insertion comprising: a handle portion; and a body portion defining a longitudinal axis and having a proximal end configured to engage the handle portion, a distal end configured to engage an implant, and a housing fixed relative to the proximal end and positioned intermediate the proximal and distal ends, the body portion including an outer tubular member fixed to the housing and extending distally therefrom, the outer tubular member having first implant engaging structure at a distal end, an inner tubular member disposed at least partially within the outer tubular member and mounted for longitudinal motion relative to the outer tubular member, the inner tubular member including a first wheel confined at least partially within a first cavity in the housing for rotating the inner tubular member relative to the outer tubular member, the inner tubular member having second implant engaging structure adjacent a distal end and an inner shaft, coaxially mounted at least partially within the inner tubular member, the inner shaft including a second wheel confined at least partially within a second cavity in the housing for independently rotating the inner shaft relative to the inner and outer tubular members, the inner shaft having third implant engaging structure adjacent a distal end.
Claim 13
Dependent Claim
26 words
Apparatus as in claim 10 wherein the first implant engaging structure comprises a pair of tabs projecting from the distal end of the outer tubular member.
Claim 14
Dependent Claim
29 words
Apparatus as in claim 11 wherein the tabs are on radially opposed sides of the longitudinal axis and are configured to engage an outer peripheral wall of an implant.
Claim 15
Dependent Claim
25 words
Apparatus as in claim 10 wherein the second implant engaging structure comprises a polygonal structure extending from the distal end of the inner tubular member.
Claim 16
Dependent Claim
24 words
Apparatus as in claim 10 wherein the third implant engaging structure comprises a threaded portion formed on the distal end of the inner shaft.
Claim 17
Dependent Claim
18 words
Apparatus as in claim 10 wherein the first implant engaging structure is removably mounted to the body portion.
Claim 18
Dependent Claim
11 words
Apparatus as in claim 10 wherein the handle portion is T-shaped.
Claim 19
Independent Claim
202 words
An apparatus for facilitating placement of an intervertebral implant, which comprises: a housing; an elongated body portion connected to the housing and extending at least distally therefrom, the elongated body including: an outer member fixedly mounted to the housing and having first implant engaging structure at a distal end thereof; an inner member disposed at least partially within the outer member and having second implant engaging structure at a distal end thereof, the inner member mounted for rotational and longitudinal movement relative to the outer member; a shaft member at least partially disposed within the inner member and having third implant engaging structure at a distal end thereof, the shaft member mounted for rotational movement relative to the inner member; a first manually rotatable member mounted adjacent the housing and operatively connected to the inner member, the first rotatable member being rotatable and longitudinally movable relative to the housing to cause corresponding respective rotational and longitudinal movement of the inner member relative to the outer member; and a second manually rotatable member mounted adjacent the housing and operatively connected to the shaft member, the second rotatable member being rotatable relative to the housing to cause corresponding rotational movement of the shaft member.
Claim 20
Independent Claim
202 words
An apparatus for facilitating placement of an intervertebral implant, which comprises: a housing; an elongated body portion connected to the housing and extending at least distally therefrom, the elongated body including: an outer member fixedly mounted to the housing and having first implant engaging structure at a distal end thereof; an inner member disposed at least partially within the outer member and having second implant engaging structure at a distal end thereof, the inner member mounted for rotational and longitudinal movement relative to the outer member; a shaft member at least partially disposed within the inner member and having third implant engaging structure at a distal end thereof, the shaft member mounted for rotational movement relative to the inner member; a first manually rotatable member mounted adjacent the housing and operatively connected to the inner member, the first rotatable member being rotatable and longitudinally movable relative to the housing to cause corresponding respective rotational and longitudinal movement of the inner member relative to the outer member; and a second manually rotatable member mounted adjacent the housing and operatively connected to the shaft member, the second rotatable member being rotatable relative to the housing to cause corresponding rotational movement of the shaft member.
Claim 21
Dependent Claim
24 words
Apparatus as in claim 17 wherein the first implant engaging structure includes a projecting member extending from the distal end of the outer member.
Claim 22
Dependent Claim
27 words
Apparatus as in claim 18 wherein the first implant engaging structure includes a pair of opposed projecting members extending from the distal end of the outer member.
Claim 23
Dependent Claim
24 words
Apparatus as in claim 17 wherein the second implant engaging structure includes a polygonal member extending from the distal end of the inner member.
Claim 24
Dependent Claim
24 words
Apparatus as in claim 17 wherein the third implant engaging structure includes a threaded potion disposed on the distal end of the shaft member.
Claim 25
Dependent Claim
29 words
Apparatus as in claim 17 wherein the second rotatable member is mounted for longitudinal movement relative to the housing portion to cause corresponding longitudinal movement of the shaft member.
Claim 26
Independent Claim
255 words
A system for facilitating fusion of adjacent vertebrae, which comprises: an implant including an implant body defining leading and trailing ends, and an end cap mountable to the trailing end of the implant body, the implant body having at least one recess adjacent the trailing end, the end cap defining an indenture in an outer surface thereof and an internally threaded bore; and an insertion tool for facilitating positioning of the implant within the adjacent vertebrae, the insertion tool, including: an elongated body defining a longitudinal axis and having proximal and distal ends, the elongated body including: an outer member having at least one tab extending from a distal end of the outer member, the tab being dimensioned to be accommodated within the recess of the implant body; an inner member at least partially disposed within the outer member, the inner member having projecting structure extending from a distal end of the inner member, the projecting structure being dimensioned to be received within the indenture of the end cap of the implant; an inner shaft at least partially disposed within the inner member and having a threaded portion adjacent a distal end thereof, the threaded portion dimensioned to threadably engage the threaded bore of the end cap of the implant; wherein the tab, projecting structure and the threaded portion of the insertion tool cooperatively engage the respective recess, indenture and threaded bore of the implant to releasably engage the implant to the insertion tool to thereby facilitate placement of the implant within the adjacent vertebrae.
Claim 27
Independent Claim
255 words
A system for facilitating fusion of adjacent vertebrae, which comprises: an implant including an implant body defining leading and trailing ends, and an end cap mountable to the trailing end of the implant body, the implant body having at least one recess adjacent the trailing end, the end cap defining an indenture in an outer surface thereof and an internally threaded bore; and an insertion tool for facilitating positioning of the implant within the adjacent vertebrae, the insertion tool, including: an elongated body defining a longitudinal axis and having proximal and distal ends, the elongated body including: an outer member having at least one tab extending from a distal end of the outer member, the tab being dimensioned to be accommodated within the recess of the implant body; an inner member at least partially disposed within the outer member, the inner member having projecting structure extending from a distal end of the inner member, the projecting structure being dimensioned to be received within the indenture of the end cap of the implant; an inner shaft at least partially disposed within the inner member and having a threaded portion adjacent a distal end thereof, the threaded portion dimensioned to threadably engage the threaded bore of the end cap of the implant; wherein the tab, projecting structure and the threaded portion of the insertion tool cooperatively engage the respective recess, indenture and threaded bore of the implant to releasably engage the implant to the insertion tool to thereby facilitate placement of the implant within the adjacent vertebrae.
Claim 28
Dependent Claim
18 words
The system as in claim 23 wherein the insertion tool includes a housing mounted to the elongated body.
Claim 29
Dependent Claim
56 words
The system as in claim 24 further including a first actuator operatively connected to the inner member and mounted with respect to the housing, the first actuator mounted for longitudinal movement relative to the housing to at least retract the inner member to cause release of the projecting structure from the indenture of the end cap.
Claim 30
Dependent Claim
35 words
The system as in claim 25 wherein the first actuator is rotatably mounted relative to the housing to facilitate alignment of the projecting structure of the inner member with the indenture of the end cap.
Claim 31
Dependent Claim
56 words
The system as in claim 26 including a second actuator connected to the inner shaft and rotatably mounted with respect to the housing, the second actuator rotatable to cause corresponding rotation of the inner shaft to thereby cause selective engagement of the threaded portion of the inner shaft with the threaded bore of the end cap.
Claim 32
Dependent Claim
38 words
The system as in claim 27 including a handle operatively connected to the outer member to facilitate rotation of the outer member and the implant to thereby enhance positioning of the implant with respect to the adjacent vertebrae.
References Cited (Backward Citations)
US2537070A
Cited
US3112743A
Cited
DE1961531U
Cited
US3298372A
Cited
USRE31628E
Cited
US3426364A
Cited
US3486505A
Cited
US3514791A
Cited
US3625198A
Cited
US3855638A
Cited
US3720959A
Cited
US3719186A
Cited
US3871031A
Cited
US3867728A
Cited
US3848601A
Cited
US3852045A
Cited
US3783860A
Cited
US3849805A
Cited
US3905047A
Cited
US3906550A
Cited
US3916907A
Cited
US4016651A
Cited
US4013071A
Cited
FR2295729B1
Cited
US4086701A
Cited
US3986212A
Cited
US4185383A
Cited
US4124026A
Cited
US4177524A
Cited
US4059115A
Cited
US4259072A
Cited
US4180910A
Cited
USRE31865E
Cited
US4492226A
Cited
US4328593A
Cited
US4289123A
Cited
US4484570A
Cited
US4349921A
Cited
US4401112A
Cited
US4309777A
Cited
US4493317A
Cited
US4406623A
Cited
US4513744A
Cited
EP0073177B1
Cited
US4501269A
Cited
US4511336A
Cited
US4549319A
Cited
US4545374A
Cited
US4468200A
Cited
US4525145A
Cited
US4599084A
Cited
US4537185A
Cited
US4522200A
Cited
US4863474A
Cited
US4573448A
Cited
US4662891A
Cited
US4553273A
Cited
US4611581A
Cited
US4569338A
Cited
US4653486A
Cited
US4673409A
Cited
US4736738A
Cited
US4802468A
Cited
US4877020A
Cited
DE3505567A1
Cited
ES283078Y
Cited
US4657550A
Cited
US4721103A
Cited
US4677972A
Cited
US4655199A
Cited
US4636217A
Cited
US4599086A
Cited
US4743260A
Cited
US4769041A
Cited
US4653481A
Cited
US4743256A
Cited
US4725280A
Cited
EP0260222B1
Cited
EP0260044B1
Cited
US4820305A
Cited
EP0269175B1
Cited
EP0269176B1
Cited
US4842517A
Cited
US4878915A
Cited
US4834757A
Cited
US4759768A
Cited
US4714469A
Cited
US4790303A
Cited
US5358511A
Cited
US4790297A
Cited
US4904261A
Cited
US4904260A
Cited
US4772287A
Cited
US4863430A
Cited
US5400805A
Cited
US5015247A
Cited
US5484437A
Cited
US4936851A
Cited
US5026373A
Cited
US4961740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |