US7001391B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument with rotary cutting member and quick release coupling arrangement
Assignee: Medtronic PS Medical Inc
•
Filing: 2002-07-22
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Granted: 2006-02-21
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Expires: 2022-07-22
Abstract
Abstract A surgical instrument for the dissection of bone and other tissue includes a spindle, a dissection tool and an adaptor disposed between the spindle and the dissection tool. The spindle includes a cavity and a male member projecting into the cavity. The adaptor includes a drive shaft that extends along an axis and includes a first end having a generally cylindrical cross-section and a centrally located aperture partially extending along the axis. The male member is carried by the spindle and extends into the aperture of the dissection tool. The cavity may define a drive portion and a tool receiving aperture. One or more alignment projections may extend from the drive portion into the tool receiving aperture.
Inventors
- 👤 Larry Dale Estes
- 👤 Danny C. Riedel
- 👤 Allen P. Hilton
- 👤 James Q. Spitler
- 👤 Rex Wesley Shores
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B17/16; A61B17/1613; A61B17/162; A61B17/1633; A61B17/1622; A61B2017/00477; A61B2017/320032
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A surgical tool for use in the dissection of bone, biomaterials, and/or other tissue, the surgical tool comprising: a rotary shaft including a cavity having a longitudinal axis; a drive shaft assembly having a first end coupled to a dissection element and a second end having a centrally located aperture extending along at least a portion of the drive shaft, the second end configured for insertion into the cavity; and a male member carried by said rotary shaft and extending along the longitudinal axis, the male member configured to extend into the aperture of the drive shaft assembly.
Claim 2
Dependent Claim
98 words
A surgical tool for use in the dissection of bone, biomaterials, and/or other tissue, the surgical tool comprising: a rotary shaft including a cavity having a longitudinal axis; a drive shaft assembly having a first end coupled to a dissection element and a second end having a centrally located aperture extending along at least a portion of the drive shaft, the second end configured for insertion into the cavity; and a male member carried by said rotary shaft and extending along the longitudinal axis, the male member configured to extend into the aperture of the drive shaft assembly.
Claim 3
Dependent Claim
28 words
The surgical tool of claim 1 , wherein the drive shaft assembly is housed in an adaptor housing and the adaptor housing including a dissection tool coupling assembly.
Claim 4
Dependent Claim
35 words
The surgical tool of claim 2 , wherein the adaptor housing includes a first portion in substantial alignment with the rotary shaft and a second portion extending at an offset angle from the first portion.
Claim 5
Dependent Claim
18 words
The surgical tool of claim 2 , wherein the dissection element is releasably coupled to the drive shaft.
Claim 6
Dependent Claim
31 words
The surgical tool of claim 2 , wherein the rotary shaft is coupled to a motor having a motor housing and the adaptor housing is selectively coupled to the motor housing.
Claim 7
Dependent Claim
25 words
The surgical tool of claim 5 , wherein the adaptor housing includes a locking member releasably engageable with the motor housing to resist longitudinal movement.
Claim 8
Dependent Claim
24 words
The surgical tool of claim 6 , wherein locking member is actuated by rotation of the adaptor housing with respect to the motor housing.
Claim 9
Dependent Claim
28 words
The surgical tool of claim 7 , wherein the rotary shaft further includes a tool coupling assembly for releasably interconnecting the rotary shaft and the drive shaft assembly.
Claim 10
Dependent Claim
26 words
The surgical tool of claim 8 , wherein the tool coupling assembly is actuated by rotation of the adaptor housing with respect to the motor housing.
Claim 11
Dependent Claim
111 words
An adaptor for use with a surgical dissection instrument having a rotary drive shaft assembly with an axis of rotation and an alignment member, the adaptor comprising: a drive train assembly having a first end with a first axis and an opposite second end; an alignment channel defined in said first end and extending along the first axis, said alignment channel configured to engage the alignment member of the rotary drive shaft assembly to align said first axis and the axis of rotation; and a drive surface defined adjacent said first end and configured to couple with the rotary drive shaft assembly, the drive surface facing outwardly from the first axis.
Claim 12
Dependent Claim
111 words
An adaptor for use with a surgical dissection instrument having a rotary drive shaft assembly with an axis of rotation and an alignment member, the adaptor comprising: a drive train assembly having a first end with a first axis and an opposite second end; an alignment channel defined in said first end and extending along the first axis, said alignment channel configured to engage the alignment member of the rotary drive shaft assembly to align said first axis and the axis of rotation; and a drive surface defined adjacent said first end and configured to couple with the rotary drive shaft assembly, the drive surface facing outwardly from the first axis.
Claim 13
Dependent Claim
23 words
The adaptor of claim 10 , further including a tool coupling assembly adjacent the opposite second end for coupling with a dissection tool.
Claim 14
Dependent Claim
19 words
The apparatus of claim 11 , further including a dissection tool configured for coupling with the tool coupling assembly.
Claim 15
Dependent Claim
13 words
The apparatus of claim 10 , wherein the drive surface is substantially triangular.
Claim 16
Dependent Claim
25 words
The apparatus of claim 10 , wherein the first end and the second end are disposed at an offset angle with respect to each other.
Claim 17
Dependent Claim
43 words
The apparatus of claim 10 , wherein the surgical dissection instrument includes a housing and the adaptor further includes an adaptor housing surrounding the drive trains assembly, the adaptor housing including a locking member for releasably engaging the housing to inhibit longitudinal movement.
Claim 18
Dependent Claim
31 words
The apparatus of claim 15 , wherein the locking member is urged to releasably engage the housing by rotation of the adaptor housing with respect to the surgical dissection instrument housing.
Claim 19
Dependent Claim
165 words
An adaptor for use with a surgical dissection instrument having a rotary drive shaft assembly with an axis of rotation and an alignment member, the adaptor comprising: a drive train assembly having a first end with a first axis and an opposite second end; an alignment channel defined in said first end and extending along the first axis, said alignment channel configured to engage the alignment member of the rotary drive shaft assembly to align said first axis and the axis of rotation; and a drive surface defined adjacent said first end and configured to couple with the rotary drive shaft assembly; wherein the surgical dissection instrument includes a housing and the adaptor further includes an adaptor housing surrounding the drive trains assembly, the adaptor housing including a locking member for releasably engaging the housing to inhibit longitudinal movement, and wherein the locking member is urged to relcasably engage the housing by rotation of the adaptor housing with respect to the surgical dissection instrument housing.
Claim 20
Dependent Claim
165 words
An adaptor for use with a surgical dissection instrument having a rotary drive shaft assembly with an axis of rotation and an alignment member, the adaptor comprising: a drive train assembly having a first end with a first axis and an opposite second end; an alignment channel defined in said first end and extending along the first axis, said alignment channel configured to engage the alignment member of the rotary drive shaft assembly to align said first axis and the axis of rotation; and a drive surface defined adjacent said first end and configured to couple with the rotary drive shaft assembly; wherein the surgical dissection instrument includes a housing and the adaptor further includes an adaptor housing surrounding the drive trains assembly, the adaptor housing including a locking member for releasably engaging the housing to inhibit longitudinal movement, and wherein the locking member is urged to relcasably engage the housing by rotation of the adaptor housing with respect to the surgical dissection instrument housing.
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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) | 2009-02-20 | 2009-08-22 | 2010-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-02-20 | 2013-08-22 | 2014-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-02-20 | 2017-08-22 | 2018-02-21 | $7700.00 | Window Closed / Lapsed |