System and method for measurement of clinical parameters of the knee for use during knee replacement surgery

A technology for surgery and navigation systems, which is applied to surgical navigation systems, surgery, diagnostic recording/measurement, etc., and can solve problems such as ineffective installation technology, large tracking sensors, and damage.

Inactive Publication Date: 2008-09-03
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often, prior art tracking sensors are too large, and mounting techniques are ineffective and can cause damage

Method used

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  • System and method for measurement of clinical parameters of the knee for use during knee replacement surgery
  • System and method for measurement of clinical parameters of the knee for use during knee replacement surgery
  • System and method for measurement of clinical parameters of the knee for use during knee replacement surgery

Examples

Experimental program
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Embodiment Construction

[0023] With reference to the accompanying drawings, figure 1 A preoperative knee joint 10 is illustrated with three miniature transducers 12 , 14 , 16 attached to the femur 18 , tibia 20 and patella 22 . These miniature sensors 12, 14, 16 are part of a navigation system 36 for tracking the motion of the femur 18, tibia 20, and patella 22 and measuring biomechanical parameters of the knee joint 10 prior to the TKR procedure. The biomechanical parameters allow the surgeon to implant the knee prosthesis by taking into account the size, shape, and motion of the femur 18, tibia 20, and patella 22, and taking into account femorotibial and patellofemoral kinematics.

[0024] The microsensors 12, 14, 16 are electromagnetic (EM) field generators comprising microcoils for generating magnetic fields. At least one EM field sensor 34 is brought adjacent to the microsensor 12 , 14 , 16 to receive magnetic field measurements from the microsensor 12 , 14 , 16 for use in calculating the posi...

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PUM

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Abstract

The invention discloses a system for measuring the clinic parameter of the knee used during the knee replacement operation and a method thereof. The system (30) foe measuring the biomechanics parameters of the knee joint before the whole knee joint replacement (TKR) operation and a method (40, 70) include a plurality of micro transducers (12, 14, 16, 32) for removably attached on the thighbone (18), the shin (20) and the patella (22); at least a sensor (34) for communicating with a plurality of micro transducers (32); a navigational system (36) coupled to at least a sensor (34); an imaging system (38) coupled to the navigational system (36) for executing the imaging of the knee joint; at least a display (35) for displaying the image and tracking the data.

Description

technical field [0001] The present invention relates generally to a system and method for measuring parameters of a knee joint, and more particularly to a system and method for incising biomechanical parameters of a knee joint used during total knee replacement (TKR) surgery. Intraoperative systems and methods for pre-measurement. Background technique [0002] Cross-references to related applications [0003] This application claims priority from (and claims benefit from) US Provisional Patent Application No. 60 / 864,748, filed November 7, 2006, the disclosure of which is incorporated herein by reference. Background of the invention [0004] TKR surgery removes damaged and painful areas of the femur (thigh bone), tibia (shin bone), and patella (knee). These areas are then replaced with specially designed metal and polyethylene prosthetic components. [0005] During TKR surgery, damaged parts of the femur and cartilage are removed. The end of the femur is shaped to allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/103A61B5/22
CPCA61B2019/507A61B2019/505A61B2019/5289A61F2002/4658A61B2019/524A61B2019/5291A61B19/5244A61B2019/5236A61B2019/5238A61B17/154A61B19/52A61B5/1122A61F2/461A61B5/4528A61B2562/043A61B2019/5251A61B5/1114A61B5/1121A61B19/50A61B2505/05A61B5/4585A61B90/36A61B34/20A61B2090/364A61B2090/376A61B34/10A61B2034/105A61B2034/107A61B2090/374A61B2090/3762A61B2034/2051A61B2090/365
Inventor L·J·N·朗日瓦
Owner GENERAL ELECTRIC CO
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