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

A sheave extension device

A bone extension and sheave technology, applied in the field of sheave bone extension devices, can solve the problems of inability to constantly control the length of extension, poor reliability and controllability, and increase the time for callus formation, so as to achieve the problem of excessive extension and applicability Strong, shortening effect of treatment time

Active Publication Date: 2021-01-01
盐城市湛安智感科技有限公司
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the device is adjusted, the extension length cannot be constantly controlled, and the extension length has great randomness. Once the extension length is too long or too short, it will increase the callus formation time, thereby prolonging the patient's treatment time. The efficiency is low and reliable. less controllable

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
  • A sheave extension device
  • A sheave extension device
  • A sheave extension device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0015] Specific implementation mode one: as Figure 1~Figure 6 As shown, the present invention discloses a sheave bone extension device, which includes a fixed osseointegration part 1, a movable osseointegrated part 3, a fixed osseointegrated part 24, a lead screw 5, a cover plate bushing 6, and a sheave drive frame And two guide rods 1, the two guide rods 1 are arranged side by side and fixedly installed between the fixed bone joint part 1 and the fixed bone joint part 2 4, and the movable bone joint part 3 is slidably installed on the two guide rods 1, the lead screw 5 is arranged axially between the two guide rods 1, and one end of the lead screw 5 is inserted into the shaft hole preset at the corresponding position of the fixed osseointegration part 1 through a thrust ball bearing 5-1 , the movable osseointegration part 3 is provided with a screw hole matched with the lead screw 5 and threadedly connected with the lead screw 5, and the outer surface of the fixed osseointeg...

specific Embodiment approach 2

[0016] Specific implementation mode two: as figure 2 , 3 As shown, this embodiment is a further description of Embodiment 1. The sheave drive frame includes a rope drum 7, a hand-rotated rope rod 8 and two steel wire ropes 9. The bottom end of the rope drum 7 and the cover plate portion 6-1 is fixedly connected, and the top of the rope drum 7 is fixedly installed with a rope rod shaft seat 7-1, and the middle position of the hand-rotated rope rod 8 is rotationally connected with the rope rod shaft seat 7-1, and the two steel wire ropes 9 One end is respectively fixed and tightly wound on both sides of the hand-rotating rope rod 8, and the other ends of the two steel wire ropes 9 are penetrated into the cover plate part 6-1 through the rope drum 7, and are respectively fixed and tightly wound on the other end of the lead screw 5. Corresponding position.

specific Embodiment approach 3

[0017] Specific implementation mode three: as Figure 5 As shown, this embodiment is a further description of the second specific embodiment. The two steel wire ropes 9 are respectively wound in spring-like directions on both sides. The winding direction is the same.

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 utility model relates to a novel rope pulley bone lengthening device, which relates to an orthopaedic medical device. The two guide rods are fixedly arranged between the fixing bone joint part 1 and the fixing bone joint part 2, a movable bone joint is slidably mounted on the two guide rods, one end of the screw is inserted into a preset shaft hole at a corresponding position of the fixing bone joint 1 through a thrust ball bearing, the movable bone joint is provided with a screw hole matched with the lead screw and is threadably connected with the lead screw, an arch-shaped shaft groove is concave on that out surface of the fixing bone joint 2 along the axial direction of the lead screw, the cover plate shaft sleeve comprises a cover plate part and a shaft sleeve part, wherein the cover plate part is fixed on the two outer surfaces of the fixing bone joint 2 by screws, the shaft sleeve part is inserted into the arc-shaped shaft groove correspondingly, the other end of the screw isrotatably arranged in the shaft sleeve part, and the rope pulley transmission frame is fixed on the cover plate part and can drive the other end of the screw to rotate in both positive and negative directions. Can always carry on the skeletal stretch elongation, shortens the treatment time, alleviates the patient's pain.

Description

technical field [0001] The invention relates to an orthopedic medical device, in particular to a sheave bone extension device. Background technique [0002] Bone lengthening is currently an effective method to treat limb shortening deformity and restore or improve limb function. Among them, callus extension of metaphysis of long tubular bone is a common osteotomy extension method with large extension length, fast bone healing, less injury, relatively few complications, and simple operation. It means that the periosteum is reserved behind the metaphyseal bone, and the mesenchymal cells in the periosteum with strong osteogenic ability will heal the bone through the formation of callus. At this time, a slow and continuous traction force is applied through the bone extension device, which can make the The callus formed at the osteotomy is slowly extended to achieve the purpose of bone lengthening. [0003] The current bone extension devices generally use external fixation meth...

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 Patents(China)
IPC IPC(8): A61B17/66
CPCA61B17/66
Inventor 刘济源刘学广周日同周求湛刘萍萍王俊
Owner 盐城市湛安智感科技有限公司
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