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Thighbone far end clamp component and thighbone far end cutting instrument with same

A femoral and distal technology, applied in the field of distal femoral fixture components, can solve problems such as troubles, achieve the effects of reducing costs, reducing the number of parts, and simplifying the operation process

Active Publication Date: 2014-10-15
DEPUY (IRELAND) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, if the doctor wishes to adjust the valgus angle of the instrument relative to the patient's anatomical axis, he / she must replace the corresponding parts of the instrument on site, which is cumbersome for surgical procedures

Method used

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  • Thighbone far end clamp component and thighbone far end cutting instrument with same
  • Thighbone far end clamp component and thighbone far end cutting instrument with same
  • Thighbone far end clamp component and thighbone far end cutting instrument with same

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Embodiment Construction

[0036] Embodiments of the invention are shown in the drawings for illustration. It will be understood by those skilled in the art, however, that the invention is not limited to the precise arrangements and instrumentalities shown therein. Various modifications and changes within the spirit and scope of the invention will become apparent to those skilled in the art from the description. Throughout the specification, like reference numerals are used to refer to like elements.

[0037] Unless defined otherwise, all technical and scientific terms used in various grammatical forms herein have the same meaning as commonly understood by one of ordinary skill in the art. The terms anterior, posterior, proximal, distal, medial, lateral, sagittal, coronal and transverse are used herein in their traditional medical / anatomical meaning. When used in connection with a distal femoral cutting instrument, the terms proximal and distal refer to the physician using the instrument. Conversely,...

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Abstract

The invention discloses a cutting instrument for cutting a thighbone far side surface before a thighbone component for full knee joint replacement is implanted. The cutting instrument comprises: a, a long and thin rod suitable for being inserted into a marrow inner cavity of a thighbone, b, a thighbone far end cutting block capable of guiding the cutting of the far side surface of the thighbone, and c, a thighbone far end clamp component capable of positioning the thighbone far end cutting block on a left leg or a right leg, wherein the thighbone far end clamp component comprises a thighbone far end clamp; the thighbone far end clamp comprises at least one channel used for glidingly receiving the rod at a preset valgus angle, and a far end surface suitable for being propped against the thighbone far side surface of the left leg or the right leg according to two turning directions; in the first turning direction, the rod is inserted in one of the at least one channel with a preset valgus angle used for one of the left leg and the right leg; in the second turning direction, the thighbone far end clamp turns about 180 degrees around the longitudinal axis of the clamp, and then the rod can be inserted into one of the at least one channel with a valgus angle used for the other of the left leg and the right leg.

Description

technical field [0001] The present invention relates to a distal femoral cutting instrument for resecting the distal aspect of a femur at a predetermined valgus angle relative to a patient's intramedullary cavity prior to implantation of a femoral component for total knee replacement. [0002] The present invention also relates to a distal femoral jig assembly for said distal femoral cutting instrument. Background technique [0003] The knee joint is the largest and most complex joint in the human body. Total knee replacement (TKR) is used for badly damaged knee joints. As knee replacement becomes the most popular procedure for severe knee injuries, research on TKR is receiving increasing attention. [0004] The TKR procedure involves implanting articulating femoral and tibial components into the distal femur and proximal tibia, respectively. Since the femur protrudes distally at a valgus angle relative to the anatomical axis in a medial manner, and the distal face of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/15A61B17/56A61B17/32
CPCA61B17/155A61B17/14A61B2017/0046
Inventor S·格兰特董晓晖
Owner DEPUY (IRELAND) LTD
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