Title:
MOTION AXIS POSITIONER FOR ARTIFICIAL KNEE REPLACEMENT
Document Type and Number:
WIPO Patent Application WO/2022/040952
Kind Code:
A1
Abstract:
A motion axis positioner (10) for an artificial knee replacement, comprising two spoon arms (10, 20) and a connecting body (30); the two spoon arms (10, 20) can be placed between the proximal tibia (T) and the distal femur (F); in addition, the proximal tibia (T) and the distal femur (F) are restrained by a ligament (L), so that the inner condyle (IC) and the outer condyle (OC) of the femur clamp against the two spoon arms (10, 20) on the tibial plateau (P) at corresponding curvatures; the connecting body (30) naturally positions a reference axis (X) according to the positions of the two spoon arms (10, 20) when clamped, the reference axis (X) is approximately parallel to a motion axis (K) about which the inner condyle (IC) and the outer condyle (OC) pivot relative to one another on the tibial plateau (P), and articular surface trimming is carried out between the proximal tibia (T) and the distal femur (F) according to the reference axis (X).
Inventors:
WANG CHIH CHIEN (CN)
Application Number:
PCT/CN2020/111205
Publication Date:
March 03, 2022
Filing Date:
August 26, 2020
Export Citation:
Assignee:
WANG CHIH CHIEN (CN)
International Classes:
A61B17/15; A61B17/56
Foreign References:
| US8900242B2 | 2014-12-02 | |||
| US20200093502A1 | 2020-03-26 | |||
| US20190290451A1 | 2019-09-26 | |||
| US20200015977A1 | 2020-01-16 | |||
| US20190336141A1 | 2019-11-07 | |||
| US20160008143A1 | 2016-01-14 | |||
| US10405871B1 | 2019-09-10 | |||
| US10709458B1 | 2020-07-14 | |||
| CN106037872A | 2016-10-26 |
Attorney, Agent or Firm:
BEIJING HC-IP AGENCY CO., LTD. (GENERALPARTNERSHIP) (CN)
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