Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Femoral stem prosthesis implantation device

A technology of prosthesis implantation and femoral stem, applied in the direction of prosthesis, femoral head, joint implants, etc., can solve the problems of uneven thickness of cement sheath, poor fixation effect, prone to gaps, and inability to achieve bone cement fixation, etc. , to achieve the effect of improving the fixing effect and reducing the vibration conduction

Pending Publication Date: 2020-11-10
TIANJIN ZHENGTIAN MEDICAL INSTR CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during operation, the implanter tends to shake with the operator's hand, which causes the shaking to be transmitted to the bone cement around the prosthesis, making the fixation effect poor and prone to gaps, and resulting in uneven thickness of the cement sheath. Therefore, the traditional implanter Optimum cemented fixation cannot be achieved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Femoral stem prosthesis implantation device
  • Femoral stem prosthesis implantation device
  • Femoral stem prosthesis implantation device

Examples

Experimental program
Comparison scheme
Effect test

other Embodiment approach

[0032] In other embodiments, the connector 2 may include two petal structures 21 or more than three petal structures 21, which are selected according to specific situations.

[0033] In this embodiment, three connecting shafts are provided at one end of the main body 1 of the implanter connected to the connecting head 2 , and the three connecting shafts are respectively hinged to the three petal structures 21 .

[0034] Such as image 3 As shown, when the three petal-shaped structures 21 of the connector 2 are implanted into the rod 11 and the femoral stem prosthesis 0 through the connector 2 and the holding hole 01, when the implanter main body 1 can be positioned at 0° relative to the femoral stem prosthesis 0 Swing within the range of -30° included angle, and the swing direction can be realized within the entire circumference. During the implantation process, the operator can avoid more flexibly, and the operation is more convenient.

[0035] Such as Figure 6 As shown, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a femoral stem prosthesis implantation device, and relates to the technical field of orthopedic surgical instruments. The femoral stem prosthesis implantation device comprisesan implantation device main body; when in use, the implantation device main body is connected to a femoral stem prosthesis; a connector is arranged at the lower end of the implantation device main body; the connector comprises at least two valvular structures; when the valvular structures are closed together, the outside surface of the connector is of a sphere structure; an operating rod is arranged in the implantation device main body in the axial direction; the operating rod can reciprocate along the axial direction of the implantation device main body; when the operating rod moves towards the connector, each valvular structure can be driven to open outwardly; the connector cannot pass through the opening of a holding hole in the femoral stem prosthesis; when the operating rod moves in the direction away from the connector, the valvular structures are closed together, and the connector can get in and out of the holding hole. According to the femoral stem prosthesis implantation device in the invention, the valvular structures with the spherical surfaces can reduce shaking conduction between the implantation device and the femoral stem prosthesis; and the fixing effect of the bonecement femoral stem prosthesis can be easily improved.

Description

technical field [0001] The invention relates to the technical field of orthopedic surgical instruments, in particular to a femoral stem prosthesis implanter. Background technique [0002] In hip joint surgery, the cement stem prosthesis needs to cooperate with its matching implanter to complete implantation and maintain the curing effect of bone cement. The traditional implant and the femoral prosthesis are locked and fixed by threads. During the operation, multiple turns of the thread must be twisted and the prosthesis and the implant are firmly integrated after being locked. However, during operation, the implanter tends to shake with the operator's hand, which causes the shaking to be transmitted to the bone cement around the prosthesis, making the fixation effect poor and prone to gaps, and resulting in uneven thickness of the cement sheath. Therefore, the traditional implanter Optimal cemented fixation cannot be achieved. Contents of the invention [0003] In order ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/4601A61F2/4607
Inventor 胡森元韩永台王飞许书富宋雪峰程磊张勋孟天宇
Owner TIANJIN ZHENGTIAN MEDICAL INSTR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com