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US5499986A Expired / Lapsed US ⏱️ 0.0 years remaining

Quick release handle apparatus for removing and inserting intramedullary nails

Assignee: Smith and Nephew Inc
•
Filing: 1994-01-07
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Granted: 1996-03-19
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Expires: 2014-01-07
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Abstract

Abstract A quick release handle apparatus for pulling an intramedullary nail includes a handle body with a sliding pushrod that moves an outer cylindrical member over an inner cylindrical member having locking elements. The locking elements engage an annular groove on a nail puller element that attaches to an intramedullary nail. The outer cylinder overlaps the inner cylinder at the locking balls to define the locking position.

Inventors

  • 👤 Donna M. Dimarco

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:31
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/92; A61B17/921; A61B2017/0046

Claims Analysis

Total Claims: 27
Claim 1
Independent Claim 167 words
A combination intramedullary nail and insertion and removal apparatus for inserting and pulling the intramedullary nail having a longitudinal bore from a patient's intramedullary canal, comprising: a) a handle body having proximal and distal end portions; b) the handle body supporting a trigger that is movably disposed relative to the handle between locking and releasing positions; c) the proximal end of the handle body having a socket with a central axis; d) an intramedullary nail having proximal and distal end portions and a hollow bore; e) a separate nail puller element having spaced apart proximal and distal end portions, each of said proximal and distal end portions having a connector that enables a connection to be formed respectively with the handle body distal end and the intramedullary nail proximal end portion; and f) the distal end of the handle body having means for forming a releasable connection with the nail puller at the socket when the trigger is moved between releasing and locking positions by a user.
Claim 2
Dependent Claim 167 words
A combination intramedullary nail and insertion and removal apparatus for inserting and pulling the intramedullary nail having a longitudinal bore from a patient's intramedullary canal, comprising: a) a handle body having proximal and distal end portions; b) the handle body supporting a trigger that is movably disposed relative to the handle between locking and releasing positions; c) the proximal end of the handle body having a socket with a central axis; d) an intramedullary nail having proximal and distal end portions and a hollow bore; e) a separate nail puller element having spaced apart proximal and distal end portions, each of said proximal and distal end portions having a connector that enables a connection to be formed respectively with the handle body distal end and the intramedullary nail proximal end portion; and f) the distal end of the handle body having means for forming a releasable connection with the nail puller at the socket when the trigger is moved between releasing and locking positions by a user.
Claim 3
Dependent Claim 17 words
The apparatus of claim 1 wherein the nail puller element is a tubular member with a bore.
Claim 4
Dependent Claim 18 words
The apparatus of claim 1 further comprising an anvil mounted at the distal end of the handle body.
Claim 5
Dependent Claim 24 words
The handle apparatus of claim 1 wherein the handle body has a longitudinally extending slot, and the trigger is movably mounted in the slot.
Claim 6
Dependent Claim 37 words
The handle apparatus of claim 4 wherein the handle body has a longitudinal axis, and the trigger includes an elongated rod that has a longitudinal axis that is generally parallel to the axis of the handle body.
Claim 7
Dependent Claim 22 words
The handle apparatus of claim 2 wherein the second tubular member is rigidly attached to the distal end of the handle body.
Claim 8
Dependent Claim 41 words
The handle apparatus of claim 6 wherein the socket is in the second tubular member, and the socket has a shaped portion that receives a correspondingly shaped head portion of the nail puller at the proximal end of the nail puller.
Claim 9
Dependent Claim 26 words
The handle apparatus of claim 7 wherein the socket of the second tubular member includes a larger diameter socket portion and a smaller diameter socket portion.
Claim 10
Dependent Claim 25 words
The handle apparatus of claim 8 wherein the handle body has a passageway with an axis that is coaxial with the axis of the socket.
Claim 11
Dependent Claim 21 words
The handle apparatus of claim 9 wherein the passageway forms an acute angle with the longitudinal axis of the handle body.
Claim 12
Dependent Claim 181 words
A combination quick release handle apparatus and intramedullary nail for pulling the intramedullary nail with a longitudinal bore from a patient's intramedullary canal, comprising: a) a handle body having proximal and distal end portions; b) the handle body supporting a pushrod that is movably disposed relative to the handle between locking and releasing positions; c) the proximal end of the handle body having a socket with a central axis; d) an intramedullary nail having proximal and distal end portions and a hollow bore; e) a nail puller element having a distal end portion with means for forming a connection with the intramedullary nail at the proximate end of the nail at the nail longitudinal bore; f) the nail puller element having a proximal end portion with an annular portion; and g) the distal end of the handle body having means, comprising at least in part a plurality of circumferentially spaced locking elements, for forming a releasable connection with the annular portion of the nail puller at the socket when the pushrod is moved between releasing and locking positions by a user.
Claim 13
Dependent Claim 181 words
A combination quick release handle apparatus and intramedullary nail for pulling the intramedullary nail with a longitudinal bore from a patient's intramedullary canal, comprising: a) a handle body having proximal and distal end portions; b) the handle body supporting a pushrod that is movably disposed relative to the handle between locking and releasing positions; c) the proximal end of the handle body having a socket with a central axis; d) an intramedullary nail having proximal and distal end portions and a hollow bore; e) a nail puller element having a distal end portion with means for forming a connection with the intramedullary nail at the proximate end of the nail at the nail longitudinal bore; f) the nail puller element having a proximal end portion with an annular portion; and g) the distal end of the handle body having means, comprising at least in part a plurality of circumferentially spaced locking elements, for forming a releasable connection with the annular portion of the nail puller at the socket when the pushrod is moved between releasing and locking positions by a user.
Claim 14
Dependent Claim 32 words
The apparatus of claim 11 wherein the releasable connection means includes a first tubular member with a bore and a second tubular member disposed within the bore of the first tubular member.
Claim 15
Dependent Claim 21 words
The apparatus of claim 11 further comprising a trigger mounted to the pushrod at the distal end of the handle body.
Claim 16
Dependent Claim 32 words
The handle apparatus of claim 11 wherein the handle body has a longitudinally extending slot, and the pushrod is movably mounted in the slot, extending substantially the length of the handle body.
Claim 17
Dependent Claim 37 words
The handle apparatus of claim 14 wherein the handle body has a longitudinal axis, and the pushrod includes an elongated rod that has a longitudinal axis that is generally parallel to the axis of the handle body.
Claim 18
Dependent Claim 22 words
The handle apparatus of claim 12 wherein the second tubular member is rigidly attached to the distal end of the handle body.
Claim 19
Dependent Claim 41 words
The handle apparatus of claim 16 wherein the socket is in the second tubular member, and the socket has a shaped portion that receives a correspondingly shaped head portion of the nail puller at the proximal end of the nail puller.
Claim 20
Dependent Claim 26 words
The handle apparatus of claim 17 wherein the socket of the second tubular member includes a larger diameter socket portion and a smaller diameter socket portion.
Claim 21
Dependent Claim 25 words
The handle apparatus of claim 18 wherein the handle body has a passageway with an axis that is coaxial with the axis of the socket.
Claim 22
Dependent Claim 21 words
The handle apparatus of claim 19 wherein the passageway forms an acute angle with the longitudinal axis of the handle body.
Claim 23
Dependent Claim 32 words
The handle apparatus of claim 11 wherein the nail puller element has an enlarged head with an annular groove and the releasable connection forming means attaches to the head at the groove.
Claim 24
Dependent Claim 16 words
The handle apparatus of claim 21 wherein the enlarged head is hexagonally shaped in transverse section.
Claim 25
Dependent Claim 14 words
The apparatus of claim 10 wherein the nail puller element has a longitudinal bore
Claim 26
Dependent Claim 23 words
The apparatus of claim 11 wherein the nail puller element has a threaded portion thereon for forming a connection with the intramedullary nail.
Claim 27
Dependent Claim 30 words
The apparatus of claim 11 wherein the annular portion includes an annular groove and the releasable connection forming means comprises in part locking elements that nest in the annular groove.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-03-19 1999-09-18 2000-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-03-19 2003-09-18 2004-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-03-19 2007-09-18 2008-03-19 $7700.00 Window Closed / Lapsed

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