Mechanical arm force feedback system, method, control method and control terminal

A feedback system and robotic arm technology, applied in the field of medical devices, can solve the problems of difficult control, limited application, complex structure, etc., and achieve the effect of expanding the scope of application

Active Publication Date: 2022-06-07
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a mechanical arm force feedback system, method, control method and control terminal, which are used to solve the problem of relatively mature surgical assistance functions that have not been seen in the prior art. Medical robots, similar to other medical robots, have many problems such as complex structure, difficult control, large size, and high cost; in addition, conventional medical robots are rarely equipped with force feedback systems for precise operations , so the application in related fields of otology is relatively limited.

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
  • Mechanical arm force feedback system, method, control method and control terminal
  • Mechanical arm force feedback system, method, control method and control terminal
  • Mechanical arm force feedback system, method, control method and control terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: External-mounted robotic arm force feedback system for assisted surgery, such as image 3 A schematic diagram of the structure of the system is shown.

[0055] The system includes: a force detection fixing ring 31 , a main control system 32 , a force feedback adjustment mechanism 33 and a mechanical arm 34 .

[0056] The force feedback adjustment mechanism 33 is respectively connected with the force detection fixing ring 31 , the main control system 32 and the mechanical arm 34 , and the force detection fixing ring 31 is connected with the main control system 32 . The force detection fixing ring 31 is used to fix the operator's upper arm and collect the operator's force application data and transmit it to the main control system 32 , so that the main control system 32 can judge whether the operator is in a state of autonomous force application through an algorithm. The distal end of the robotic arm 34 is provided with an electrical interface for directly con...

specific Embodiment

[0059] like Figure 4 Shown is a schematic flowchart of a method for force feedback of a robotic arm in an embodiment of the present invention.

[0060] The method includes:

[0061] Step S41: Determine the force applying state of the operator according to the force applying data collected by the force detection and fixing module, wherein the force applying state includes an active force applying state and a non-active force applying state.

[0062] Optionally, the force application state of the operator is determined according to the force application data collected by the received force detection and fixing module, wherein the force application state includes: an active force application state and a non-active force application state; wherein, The force application data is the force application data of any part of the operator, which is not limited in this application; for example, the force application data at the wrist.

[0063] Optionally, the force detection fixing mod...

Embodiment 2

[0072] Example 2: The external mechanical arm force feedback method for assisted surgery, such as Figure 5 A schematic diagram of the structure of the system is shown.

[0073] The method includes: fixing the wristband to collect the force application data of the operator; based on the force application threshold, the control system judges the force application situation of the operator based on the force application threshold value received by the force detection and fixing module, that is, whether the operator is in the force application state. The state of autonomous force is judged; if the operator is in the state of active force, the force feedback adjustment mechanism is activated, and the braking mechanism of the mechanical arm is unlocked at the same time; if the operator is in the state of involuntary force, the force feedback adjustment The mechanism remains locked, so that the robotic arm also maintains the braking state synchronously, so that the robotic arm can h...

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 mechanical arm force feedback system, method, control method, and control terminal of the present invention include: a force detection and fixing module for collecting force application data of the operator; a control module for judging the force application data according to the received force application data. The force application state of the operator, wherein the force application state includes: an active force application state and a non-active force application state; a force feedback state adjustment module, which is used to adjust its own working state according to the force application state; the mechanical arm, It is used to adjust the working state of the module according to the force feedback state, and transform it into a state of the mechanical arm adapted to the working state. The invention can realize the real-time movement and hovering of the mechanical arm through algorithm control and according to the force applied by the operator, which meets the actual clinical needs of the surgeon who needs to relax and rest the upper limbs under long-term operation conditions. The present invention can be used not only in conjunction with a surgical robot, but also as an independent surgical instrument, which expands its scope of application.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a mechanical arm force feedback system, method, control method and control terminal. Background technique [0002] In a surgical operation, the time for a surgeon to perform an operation is not fixed, ranging from tens of minutes to as many as 10 hours. When performing a complex operation that lasts more than 3 hours, because the operator needs to perform the operation for a long time, it will inevitably cause fatigue of the upper limbs, and even cause involuntary shaking and convulsions, which will bring huge labor to the surgeon. At the same time, it also indirectly increases the risk of surgery. Among the existing technologies, the most suitable technology for solving the above problems is the related technology of robots. Surgical robots can achieve very powerful functions because of the principle of assisting the user. However, due to the complexity of the design and the hi...

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): A61B34/30
Inventor 贾欢吴皓
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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