US4927425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical rod pusher instrument
Assignee: Zimmer Technology Inc
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Filing: 1988-12-21
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Granted: 1990-05-22
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Expires: 2008-12-21
Abstract
Abstract A surgical rod pusher instrument for application of a force against a rod. The instrument has a distal tip which includes a plurality of rod locator recesses, each having a different directional orientation. The rod can be located in the desired recess for application of force against the rod. The plurality of recesses enables the user to apply force to the rod in multiple, selectable directions.
Inventors
- 👤 Antony J. Lozier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7074; A61B17/7083
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
62 words
A surgical rod pusher instrument for application of force against a rod, the instrument comprising a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, the cavity including a plurality of discrete rod locator recesses wherein each discrete recess is substantially semi-cylindrical and each discrete recess has a different directional orientation.
Claim 2
Dependent Claim
62 words
A surgical rod pusher instrument for application of force against a rod, the instrument comprising a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, the cavity including a plurality of discrete rod locator recesses wherein each discrete recess is substantially semi-cylindrical and each discrete recess has a different directional orientation.
Claim 3
Dependent Claim
89 words
The instrument of claim 1 wherein the cavity includes at least a first, a second, and a third rod locator recess, with the first locator recess located adjacent the second recess and the second locator recess also located adjacent the third recess, wherein an extended portion is formed in the instrument between the first and second recesses and between the second and third recess, the extended portions extending from the instrument in toward the cavity, assisting in preventing the rod from slipping from one recess to an adjacent recess.
Claim 4
Dependent Claim
78 words
The instrument of claim 1 wherein the cavity includes at least a first, a second, and a third rod locator recess, each recess having a different directional orientation, with the first recess adapted for application of force in a first generally sideways direction, the second recess adapted for application of force in a generally downward direction, and the third recess adapted for application of force in a second generally sideways direction substantially opposite to the first sideways direction.
Claim 5
Dependent Claim
20 words
The instrument of claim 1 wherein the handle angles in relation to the distal tip at about a 150° angle.
Claim 6
Dependent Claim
83 words
A surgical rod pusher instrument comprising a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the enlarged cavity including a plurality of discrete curved rod locator recesses, each recess having a different center of curvature.
Claim 7
Dependent Claim
83 words
A surgical rod pusher instrument comprising a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the enlarged cavity including a plurality of discrete curved rod locator recesses, each recess having a different center of curvature.
Claim 8
Independent Claim
140 words
A method of utilizing a surgical rod pusher instrument which provides for application of force to a rod in multiple, selectable directions, in which the instrument comprises a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the cavity including a plurality of rod locator recesses, wherein the method includes the following steps: (a) passing the rod through the narrower rod receiving opening into the enlarged cavity; (b) selecting one of the plurality of rod locator recesses and locating the rod therein; and (c) applying force against the rod in the desired direction.
Claim 9
Independent Claim
140 words
A method of utilizing a surgical rod pusher instrument which provides for application of force to a rod in multiple, selectable directions, in which the instrument comprises a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the cavity including a plurality of rod locator recesses, wherein the method includes the following steps: (a) passing the rod through the narrower rod receiving opening into the enlarged cavity; (b) selecting one of the plurality of rod locator recesses and locating the rod therein; and (c) applying force against the rod in the desired direction.
Claim 10
Independent Claim
209 words
A method of utilizing a surgical rod pusher instrument for application of force to a rod in multiple, selectable directions in which the instrument comprises a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the cavity including at least a first, a second, and a third rod locator recess, each recess having a different directional orientation, wherein the method includes the following steps: (a) passing the rod through the narrower rod receiving opening into the enlarged cavity; (b) selecting from one of the following rod locator recesses: the first recess for application of force against the rod in a first generally sideways direction, the second recess for application of force against the rod in a generally downward direction, and the third recess for application of force against the rod in a second generally sideways direction substantially opposite to the first sideways direction; (c) locating the rod in the selected recess; and (d) applying force to the rod in the desired direction.
Claim 11
Independent Claim
209 words
A method of utilizing a surgical rod pusher instrument for application of force to a rod in multiple, selectable directions in which the instrument comprises a distal tip and an elongated handle extending therefrom, the tip including a rod receiving opening leading into an enlarged cavity, and wherein the rod receiving opening has a width and the enlarged cavity has a widest portion and wherein the width of the rod receiving opening is narrower than the widest portion of the enlarged cavity, the cavity including at least a first, a second, and a third rod locator recess, each recess having a different directional orientation, wherein the method includes the following steps: (a) passing the rod through the narrower rod receiving opening into the enlarged cavity; (b) selecting from one of the following rod locator recesses: the first recess for application of force against the rod in a first generally sideways direction, the second recess for application of force against the rod in a generally downward direction, and the third recess for application of force against the rod in a second generally sideways direction substantially opposite to the first sideways direction; (c) locating the rod in the selected recess; and (d) applying force to the rod in the desired direction.
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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) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |