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Prosthesis extraction system

A prosthesis and component technology, applied in the field of femoral stem prosthesis extractor components, which can solve problems such as thread cross-threading, damage or failure of instruments

Pending Publication Date: 2021-05-11
DEPUY (IRELAND) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can cause problems such as cross-threading, general damage or malfunction of the device

Method used

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  • Prosthesis extraction system
  • Prosthesis extraction system
  • Prosthesis extraction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] Devices as described herein can be used to remove femoral stems during primary surgery and can also be used in revision surgery. The configuration as described herein allows the device to be adapted for use in all methods and Cutout size.

[0064] figure 1 A device 2 for extracting a prosthetic component from a patient is shown, connected to a sliding hammer 4 and connectable to a prosthetic component (not shown) for prosthetic extraction. The device is basically a ball joint to allow what is usually a long axis to pivot to avoid hitting tissue. The second part is attached to the femoral implant eg by means of a thread, but in principle it can be attached in numerous ways according to methods and variants. The first part has a socket detachable from the ball by means of a cutout or opening. The first component is permanently integrated or removably connected to the force transmission part of the device system. The force transmission device can be as figure 1 Slidi...

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PUM

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Abstract

A surgical device (2) for extraction of a prosthetic component from a patient during surgery. The surgical device comprises a first component (8) having a female coupling portion at a first end, and a second end configured to be connected to one of a prosthetic component or a surgical extraction instrument. The first component further includes a retainer. The surgical device further comprises a second component (10) with a first end defining a male coupling portion, a stem (30, 130) extending from the male coupling portion, and a second end configured to be connected to the other of the prosthetic component or the surgical extraction instrument. The male coupling portion of the second component is configured to be disposed within the female coupling portion of the first component and retained within the female coupling portion by the retainer, with the stem of the second component extending away from the female coupling portion of the first component. The male coupling portion of the second component and the retainer of the first component are configured such that the male coupling portion is held in the female coupling portion while allowing articulation of the first component relative to the second component. The first and second components form an articulating joint allowing a user to connect the surgical extraction instrument to the prosthetic component in a patient, articulate a portion of the surgical extraction instrument which resides external from the operating site, and transfer extraction forces to enable removal of the prosthetic component from the patient.

Description

technical field [0001] The present disclosure relates to an apparatus for extracting a prosthetic component from a patient during a surgical procedure. A particular configuration relates to a femoral stem extractor component for removing a femoral stem of a prosthetic hip joint from a patient's femur during a surgical procedure. A system for extracting a device component of a prosthesis from a patient during a surgical procedure is also described. Additionally, the present disclosure describes methods of extracting a prosthetic component, such as a femoral stem prosthesis, from a patient and methods of implanting the prosthetic component during a surgical procedure. Background technique [0002] Prosthetic implants such as prosthetic hip joints are well known in the art. Typically, at least one component of the prosthetic implant is anchored in the patient's bone. For example, in the case of a prosthetic hip joint, a femoral stem component is inserted and anchored in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/4607A61F2002/4625A61F2002/4629A61F2002/4619A61F2002/4627A61F2002/4681A61F2/4603
Inventor J·阿特金G·达顿G·穆尔
Owner DEPUY (IRELAND) LTD