Unlock instant, AI-driven research and patent intelligence for your innovation.

A High-Precision Virtual Remote Motion Center Mechanism

A remote motion center and high-precision technology, which is applied in ophthalmic surgery and other fields, can solve the problems of cumbersome operation, complicated structure, and increased volume of surgical devices, and achieve the effects of improving mechanism accuracy, reducing mechanism clearance, and improving motion accuracy

Active Publication Date: 2022-01-11
BEIHANG UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of the RCM point fixed relative to the mechanism makes the movement of the instrument not flexible enough. Before the operation, the auxiliary mechanism needs to be moved to a suitable position to ensure that the puncture point coincides with the RCM point of the mechanism accurately. The advanced translation stage also increases the volume of the entire surgical device, and the structure is complicated, which is not easy to apply to ordinary operating rooms

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 High-Precision Virtual Remote Motion Center Mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] see figure 1 , a high-precision virtual remote motion center mechanism, including a base 5, a second linear drive module 2 and a fourth linear drive module 4 are fixedly installed on the base 5, and the second linear drive module 2 is connected to the first linear drive Module 1, the fourth linear drive module 4 is connected to the third linear drive module 3; the third linear drive module 3 is connected to the second connecting rod 6, and the first linear drive module 1 is connected to the first connecting rod 19; The end portion of the rod 19 and the second connecting rod 6 is clamped up and down; the first connecting rod 19 is connected with the first outer U-shaped rod 17 through the first rotating pair 18, and the second connecting rod 6 is rotated through the second rotation. The pair 7 is connected with a second outer U-shaped bar 8; the inner two sides of the second outer U-shaped bar 8 are connected to the second inner U-shaped bar 9 through the fourth rotating...

Embodiment 2

[0023] A high-precision virtual remote motion center mechanism, including a base 5, a second linear drive module 2 and a fourth linear drive module 4 are fixedly installed on the base 5, and the second linear drive module 2 is connected to the first linear drive module 1. The fourth linear drive module 4 is connected to the third linear drive module 3; the third linear drive module 3 is connected to the second connecting rod 6; the first linear drive module 1 is connected to the first connecting rod 19; the first connecting rod 19 and the end of the second connecting rod 6 are clamped up and down; the first connecting rod 19 is connected with the first outer U-shaped bar 17 through the first rotating pair 18, and the second connecting rod 6 is connected with the first outer U-shaped bar 17 through the second rotating pair 7 is connected with a second outer U-shaped bar 8; the inner two sides of the second outer U-shaped bar 8 are connected to the second inner U-shaped bar 9 thr...

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 high-precision virtual remote motion center mechanism. The second linear drive module and the fourth linear drive module are fixed on the base, and the first linear drive module and the third linear drive module are connected with the second linear drive module respectively. module and the fourth linear drive module, the first connecting rod and the second connecting rod are respectively connected with the first linear drive module and the third linear drive module, and the first outer U-shaped rod and the second outer U-shaped rod respectively pass through the second A rotary pair and the second rotary pair are connected with the first connecting rod and the second connecting rod. The first inner U-shaped bar and the second inner U-shaped bar are respectively connected to the first outer U-shaped bar and the second outer U-shaped bar through the third rotating pair and the fourth rotating pair, and the first inner U-shaped bar It is connected with the second inner U-shaped bar through a moving pair. The fifth linear drive module is fixed on the first inner U-shaped rod, the rotary drive module is connected to the fifth linear drive module, and the instrument is connected to the rotary drive module. The invention has the advantages of high motion precision, stability and the like.

Description

technical field [0001] The invention relates to the technical field of ophthalmic surgery auxiliary operations, in particular to a high-precision virtual remote motion center mechanism. Background technique [0002] The operation space of ophthalmic surgery is narrow, the movement precision is high, and the operation is difficult. After the instrument is inserted into the eye, subsequent operations must be carried out around the insertion point to reduce damage to the tissues around the insertion point. The difficulty of manual operation by doctors has been greatly improved. Most of the current auxiliary mechanisms for ophthalmic surgery use mechanical constraints to make the instrument move around a fixed point relative to the mechanism, which is called the remote motion center (Remote Motion Center, RCM). The stabbing point stabilizes the movement. However, the use of the RCM point fixed relative to the mechanism makes the movement of the instrument not flexible enough....

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): A61F9/007
CPCA61F9/007
Inventor 杨洋陈子路广晨汉郑昱
Owner BEIHANG UNIV