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Flexible joint

A technology of flexible joints and joints, applied in the field of medical devices, can solve the problems of flexibility and bending strength, and achieve the effects of convenient operation, increased flexibility, and guaranteed stability

Pending Publication Date: 2020-10-16
江苏木偶医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, flexible joints are widely used in minimally invasive surgery. When the existing flexible joints are used to drive the front end of minimally invasive surgical forceps, because the front end of the chuck needs to be stressed, there is a very high requirement for the bending strength of the entire flexible joint. At the same time This flexible joint needs to be controlled by the doctor, and it also has high requirements for the flexibility of the flexible joint. At present, the flexible joints on the market cannot take into account both flexibility and bending strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A flexible joint comprising:

[0065] A joint head 1, the joint end is provided with a positioning through hole 101; the lower surface of the joint head 1 is provided with a head end groove 102, and the head end groove 102 is extended with a head end limit boss 103;

[0066] A joint tail end 2, the outer surface of the joint tail end 2 is provided with a tail end positioning groove 201 corresponding to the positioning through hole 101; the upper side surface of the joint tail end 2 is provided with a tail end boss 202;

[0067] A joint, the outer surface of the joint corresponds to the positioning through hole 101 and is provided with a joint positioning groove 301, the joint head 1, the joint tail 2, and the joint are correspondingly provided with a positioning groove 3; the upper surface of the joint is provided with two a boss, two grooves are provided on the lower side surface, and the groove extends to limit the boss; the line connecting the center points of the bo...

Embodiment 2

[0076] The rest are consistent with the scheme of Embodiment 1. The joint head end 1, joint parts, and joint tail end 2 of the present invention complete the detachable movable connection through the cooperation of the head end groove 102, the boss, the groove, and the tail end boss 202. , and under the limit of the outer layer 7, the joint head end 1, the joint part, and the joint tail end 2 are fixed in the left and right radial directions, and the front and rear radial directions are in an adjustable state.

Embodiment 3

[0078] The rest are consistent with the scheme of Embodiment 1 or 2. There are at least three driving wires in the present invention. One end of the driving wire is used for external force traction, and the other end forms a fixed connection with the joint head end 1 or the joint tail end 2. The fixed connection includes welding or Adhesive bonding.

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Abstract

The invention discloses a flexible joint. The joint comprises a joint head end (1), a joint tail end (2), a joint piece, a driving wire (6) and an outer layer (7), the joint head end (1), the joint piece and the joint tail end (2) are detachably and movably connected through cooperation of a head end groove (102), a boss, a groove and a tail end boss (202) in sequence, and the movable connection part is limited through a head end limiting boss (103), a limiting boss and the outer layer (7). Therefore, the joint head end (1) and the joint piece are movable, and under the redeployment of the driving wire (6), the adjacent joint pieces, the joint piece and the joint tail end (2) can only move in the radial direction relative to the movable connection part, and the adjustment movement of the flexible joint is completed. The flexible joint provided by the invention can meet the requirements of movement of the medical endoscope camera in all directions for shooting at different angles.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a flexible joint. Background technique [0002] At present, flexible joints are widely used in minimally invasive surgery. When the existing flexible joints are used to drive the front end of minimally invasive surgical forceps, because the front end of the chuck needs to be stressed, there is a very high requirement for the bending strength of the entire flexible joint. At the same time This section of flexible joint also needs to meet the doctor's control, and also has high requirements for the flexibility of the flexible joint. At present, the flexible joints on the market cannot take into account both flexibility and bending strength. Contents of the invention [0003] In view of this, it is necessary to provide a flexible joint for the problems existing in the prior art. [0004] A kind of flexible joint of the present invention comprises: [0005] A joint head e...

Claims

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Application Information

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IPC IPC(8): A61B17/29A61B1/008
CPCA61B1/0055A61B1/0057A61B1/008A61B17/29A61B2017/2908A61B2017/2932
Inventor 李晓贞徐欣良宜王屹初禹久泓朱鸿
Owner 江苏木偶医疗器械有限公司