Automatic injection mechanism fused with tactile perception

A technology of tactile perception and automatic injection, which is applied in the field of medical devices, can solve problems such as nurses' energy and physical strength requirements, and achieve the effects of improving injection safety, reducing acupuncture position deviation, and reducing pain

Pending Publication Date: 2022-07-12
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, under special circumstances such as a large number of patients or an epidemic, nurses need to repeat the operation many times in a row, which not only requires the nurse's energy and physical strength, but also may make individual mistakes

Method used

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  • Automatic injection mechanism fused with tactile perception
  • Automatic injection mechanism fused with tactile perception
  • Automatic injection mechanism fused with tactile perception

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specific Embodiment approach

[0027] DETAILED DESCRIPTION: Take the intravenous injection operation incorporating tactile perception as an example, such as Figure 4 , its working principle is as follows: after the patient's body surface is sterilized, the position of the basic needle entry point is determined, and then the present invention is moved to the vicinity of the needle entry point through the control of the robotic arm, and the surface of the gel elastomer 20 of the touch sensor 1 is in contact with the body surface. , the image of the contact surface is captured by the camera 18 and transmitted to the computer for analysis, and then the position of the subcutaneous blood vessel is accurately sensed. When it is determined that the position of the needle insertion point is at the center of the gel elastomer 20, the screw motor 6 is powered on to drive The screw 8 rotates, thereby controlling the needle 17 to perform linear motion, extending out and passing through the tactile sensor 1, and piercin...

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Abstract

The invention provides an automatic injection mechanism fused with tactile perception. The automatic injection mechanism comprises a tactile sensor and an automatic injection mechanism body. Wherein the touch sensor is arranged at the front end of the mechanism and can read human skin surface information. A main body of the injection mechanism controls linear motion of a needle through a lead screw motor and a sliding block, controls rotary motion of the needle through a speed reduction direct current motor, and detects mechanical information borne by the needle through a torque sensor. The needle head penetrates through the frame and the gel part of the touch sensor and pierces out from the center, when approaching the skin surface, the needle head is driven by the air cylinder to accelerate and rapidly pierce into the skin, and then the electric push rod is started to push the injector to complete injection operation of medicine. The automatic injection mechanism fused with tactile perception can be combined with a mechanical arm technology, deformation and movement of internal blood vessels in the injection process are perceived in real time through external deformation, then the injection strategy is optimized in real time, visual shielding is avoided, the injection success rate is increased, and the automatic injection mechanism is simple in structure, low in cost and easy to manufacture and popularize.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to an automatic injection mechanism integrating tactile perception. Background technique [0002] Injection refers to the injection of liquid or gas into the human body with the help of a medical device such as a syringe to achieve the purpose of diagnosis, treatment and prevention of diseases. It's not the same as taking medicine. After the drug is injected, it can quickly reach the blood and have an effect. Its types mainly include intradermal injection, subcutaneous injection, intramuscular injection, intravenous injection, etc. [0003] For different patients, nurses will choose different injection methods, but the injection operation has certain requirements on the nurses' experience and skills. Taking intravenous injection as an example, if the nurse fails to locate the blood vessel correctly many times, it will not only increase the patient's pain, but may also lead to a con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/42A61M5/20
CPCA61M5/427A61M5/2053A61M2005/2026
Inventor 汤卿徐光宇李衡金
Owner SICHUAN UNIV
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