Pressing main body and cardio-pulmonary resuscitation machine
By using a combination of linear magnetic sensitive elements and magnetic steel in the cardiopulmonary resuscitation machine, the non-contact high-precision linear measurement is achieved, which solves the problems of poor durability and poor linearity in the contact displacement sensor in the prior art, and achieves high-precision and long-life pressing depth control.
CN222657442UActive Publication Date: 2025-03-25SHENZHEN COMEN MEDICAL INSTR
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Patent Information
- Application Number
- CN202420584344.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-22
AI Technical Summary
Technical Problem
The existing cardiopulmonary resuscitation machines use contact displacement sensors, which have problems with poor durability and poor linearity.
Method used
The linear magnetic sensitive element is used as the displacement sensor to realize non-contact high-precision linear measurement through the magnetic field change information generated during the movement of the magnet, and detect the moving distance of the sheath, thereby detecting the pressing depth of the pressing assembly.
Benefits of technology
It realizes the pressing depth control with good linearity and high accuracy, avoids the reduction of durability due to wear, and is less affected by the environment and has a longer service life.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a pressing main body and a cardio-pulmonary resuscitation machine. The pressing main body comprises a supporting seat, a driving assembly, a sheath, a mounting sleeve, a detection assembly, a pressing assembly and a control assembly. The detection assembly comprises linear magneto-sensitive elements and magnetic steel, the multiple linear magneto-sensitive elements are fixed to the mounting sleeve and distributed at equal intervals in the sliding direction of the sheath, the magnetic steel is fixed to the sheath, the magnetic steel and the linear magneto-sensitive elements are arranged at intervals, and at least three linear magneto-sensitive elements are located in the range of a magnetic field generated by the magnetic steel. Since the linear magneto-sensitive element is adopted as the displacement sensor, magnetic field change information generated in the moving process of the magnetic steel is collected, non-contact high-precision linear measurement of the displacement of the magnetic steel is realized, the moving distance of the sheath is detected, the pressing depth of the pressing assembly is detected, the pressing depth is controlled by adopting the non-contact displacement sensor, and the pressing accuracy is improved. The linear degree is good, the precision is high, the durability is not reduced due to abrasion, the environmental influence is small, and the service life is long.
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