Cup impactor

a technology of impactor and cup, which is applied in the field of surgical cup impactor, can solve the problems of patient inconvenience and considerable strain

Active Publication Date: 2018-05-31
INCIPIO DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]A cup impactor is provided, adapted to assist a surgeon in controlling implantation of a cup prosthesis. The impactor has an impactor body, a drive train assembly, an impactor nose, and a clamping handle. The impactor body has on its proximal end, an impaction plate connected thereto, and an impactor handle formed thereon for handling by the surgeon and, on the distal end, an impactor cup support portion having a receiver recess therein. A drive train assembly has a prosthesis engaging interface at a distal end thereof, and a proximal end on which a positioning knob is formed. The assembly is received and rotatably mounted in the receiver recess of the body so as to expose the prosthesis engaging surface. An impactor nose mounts on the distal end of the impactor body, through which the prosthesis engaging interface extends. A clamping handle pulls distal portion of the drive train assembly and therefore any cup prosthesis attached to the engaging interface against the impactor nose so as not to strain the proximal end of the drive train assembly.

Problems solved by technology

Typically, therefore, the entire drive train is pulled by the clamping handle, which results in considerable strain.
The universal joint often fails due to this strain, which may result in inconvenience to the patient via complications in the surgical procedure.

Method used

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Examples

Experimental program
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Effect test

second embodiment

[0043]Referring now to FIG. 9A, in a second embodiment, a clamping slide 91 having a concave kidney bean shape is shown. Movement of the clamping lever 31 induced rotation of the clamping slide 91 around the pivoting pin 93. The retaining section 92 of distal drive train shaft 94, which slides on the concave face of the clamping slide 91, follows the movement of the clamping slide and is pulled backward. As described above, the backward displacement of the distal drive train shaft 94 locks the acetabular cup prosthesis against the impactor nose.

third embodiment

[0044]Referring now to FIG. 9B, in a third embodiment, a clamping slide 95 is shown having a convex kidney bean shape. Movement of the clamping lever 31 induced rotation of the clamping slide 95 around the pivoting pin 97. The spherical retaining section 96 of distal drive train shaft 98, which slides on the convex face of the clamping slide 95, follows the movement of the clamping slide and is pulled backward. As described above, the backward displacement of the distal drive train shaft 98 locks the acetabular cup prosthesis against the impactor nose.

[0045]Referring now to FIGS. 10, 11 and 12 a variant of the embodiment of FIGS. 2, 3 and 4 is shown in which the clamping handle 5′ of the cup impactor l′ is located on the top of the impactor body 8′. Pulling on the clamping handle 5′ releases the cup 9 (by moving the threaded tip 37 forward), and pushing on the clamping handle 5′ locks the cup 9 (by moving the threaded tip 37 backward).

[0046]Referring now to FIGS. 13 and 14, differen...

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Abstract

A cup impactor (1, 1′, 1″) is provided, adapted to assist a surgeon in controlling implantation of a cup prosthesis (9). The impactor has an impactor body (8), a drive train assembly (71), an impactor nose (38), and a clamping handle (5). The impactor body (8) has on its proximal end, an impaction plate (7) connected thereto, and an impactor handle (6) formed thereon for handling by the surgeon and, on the distal end, an impactor cup support portion (8a) having a receiver recess (8b) therein. A drive train assembly (71) has a prosthesis engaging interface (11) at a distal end thereof, and a proximal end on which a positioning knob (2) is formed. The assembly (71) received and rotatably mounted in the receiver recess (8b) of the body (8) so as to expose the prosthesis engaging surface (11). An impactor nose (38) mounts on the distal end of the impactor body (8), through which the prosthesis engaging interface (11) extends. A clamping handle (5) pulls distal portion of the drive train assembly (71) and therefore any cup prosthesis (9) attached to the engaging interface (11) against the impactor nose (38) so as not to strain the proximal end of the drive train assembly (71).

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 062,166, filed Oct. 10, 2014, entitled: “ACETABULAR CUP IMPACTOR”, the contents of which are incorporated herein by reference thereto.COPYRIGHT & LEGAL NOTICE[0002]A portion of the disclosure of this patent document contains material which is subject to copyright protection. The Applicant has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. Further, no references to third party patents or articles made herein is to be construed as an admission that the present invention is not entitled to antedate such material by virtue of prior invention.FIELD OF THE INVENTION[0003]This invention relates to a surgical cup impactor, method, kit, surgical system and surgical apparatus for use in insertin...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/46A61F2/34A61F2/30
CPCA61F2/4609A61F2002/30329A61F2002/30535A61F2/34A61F2002/30635A61F2002/30604A61F2002/30471A61F2002/30428A61F2002/4681A61F2002/4635A61F2002/4629A61F2002/3403A61F2/4603
Inventor CHENAUX, FABRICE
Owner INCIPIO DEVICES
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