Mini-type metacarpal bone and finger bone external fixing support

A metacarpophalangeal and external fixation technology, applied in the field of external fixation devices, can solve problems such as affecting the function and the inability of early exercise of fingers, and achieves the effects of firm fixation, satisfactory recovery of appearance and function, and reduction of tendon adhesions.

Inactive Publication Date: 2013-05-15
SHANGHAI SIXTH PEOPLES HOSPITAL
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The current fracture reduction and fixation method often requires two-stage joint fusion because the fingers cannot be exercised early after surgery, or because

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
  • Mini-type metacarpal bone and finger bone external fixing support
  • Mini-type metacarpal bone and finger bone external fixing support
  • Mini-type metacarpal bone and finger bone external fixing support

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] Reference figure 1 In this embodiment, the miniature palm and phalanx fracture external fixation bracket includes a first clamp block 1 and a second clamp block 2, and the first clamp block 1 and the second clamp block 2 are connected by a connecting rod 3.

[0027] The second clamping block 2 is provided with a through hole, the connecting rod 3 passes through the through hole, and one end is connected to the clamping block 1.

[0028] The second clamping block 2 is provided with a threaded hole to communicate with the through hole and the outside, and a pressing screw 22 is screwed in from the threaded hole to fix the connecting rod 3.

[0029] When in use, the bone pin is fixed on the bone, and the outer end is clamped by the first clamp block 1 and the second clamp block 2, thereby realizing the connection of the broken bone.

Example Embodiment

[0030] Example 2

[0031] On the basis of Example 1, refer to figure 1 , The connecting rod 3 is connected with a fixing block 5 at the outer end of the second clamping block 2, and the fixing block 5 is provided with a through adjusting screw hole 52 on the side of the connecting rod 3.

[0032] The second clamping block 2 is also provided with a protrusion 21 on the side of the through hole. The protrusion 21 is provided with a through adjusting screw hole. The adjusting screw hole 52 of the fixing block 5 and the adjusting screw screw of the second clamping block 2 The holes are on the same line.

[0033] The adjusting screw 4 passes through the adjusting screw hole 52 of the fixed block 5 and the adjusting screw screw hole of the second clamping block 2 in sequence.

[0034] Rotate the adjusting screw 4, the second clamp block 2 can move back and forth, thereby driving the bone nail clamped by the second clamp block 2 to move back and forth. Therefore, the adjustment screw 4 can ...

Example Embodiment

[0036] Example 3

[0037] On the basis of Example 1 or 2, refer to figure 1 , The first clamping block 1 is provided with a spherical cavity, one end of the connecting rod 3 inserted into the first clamping block 1 is a spherical end 31, and the spherical end 31 is placed in the spherical cavity and forms a universal joint with the spherical cavity .

[0038] The connection between the connecting rod 3 and the first clamp block 1 is designed as a universal joint, which has good adjustability and can effectively correct the rotation or angled deformity of the fracture. If the fracture is found to be angled or rotated after the operation, it can be obtained by manual adjustment The fracture is well aligned.

[0039] In this case, the back end of the spherical cavity is provided with a camber block 11, and the back end of the camber block 11 is a clamping screw 12 for better control of the universal joint.

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 mini-type metacarpal bone and finger bone external fixing support, in order to seek a simple, convenient-to-implement and effective treatment method for metacarpal bone and finger bone fractures of a hand portion, and particularly for infected open fractures near joints and combined local traumas. Through holding force of a fixing pin to a bone, mechanical reset force and firm fixing force of an external connecting rod are transmitted to interior bones to enable the connecting rod to be moved or fixed according to the needs of fracture or joint reset. The mini-type metacarpal bone and finger bone external fixing support has the advantages of being little in trauma, and stable and reliable in fixing.

Description

technical field [0001] The invention relates to a fracture fixation device, in particular to an external fixation device which can be used for human palm and phalanx fractures. Background technique [0002] Metacarpal and phalanx fractures are the result of direct violence from hand trauma. They have a high incidence in fractures and are often accompanied by combined injuries of tendons, nerves, and blood vessels. Metacarpal and phalanx fractures have the common characteristics of tubular fractures of limbs, and there are also Its particularity is that the metacarpal and phalanx bones are short, participate in many joints, have high functional requirements, have a great impact on the shape, and the tissue structure around the bone is complex. Small displacement and angulation after fracture will affect the function of the hand. [0003] Therefore, the treatment of complex metacarpal and phalanx fractures involving the articular surface has always been a difficult point in or...

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
IPC IPC(8): A61B17/66
Inventor 王挺郑宪友柴益民
Owner SHANGHAI SIXTH PEOPLES HOSPITAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap