Passive human body cavity pressure measuring method and system based on multistable cell string

CN119112143AActive Publication Date: 2024-12-13PEKING UNIVERSITY FIRST HOSPITAL (PEKING UNIVERSITY FIRST CLINICAL MEDICAL COLLEGE)
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Patent Information

Application Number
CN202411219466.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2024-12-13
Estimated Expiration
2044-09-02

AI Technical Summary

Technical Problem

The existing human cavity pressure measurement method is bulky and complex, and cannot meet the needs of portability and intuitiveness. Moreover, multi-stable cell cells have few clinical applications in the medical field, so it is necessary to develop passive human cavity pressure measurement method to reflect the pressure in the human cavity. change.

Method used

Through the deformation data reception, stress analysis, and the mapping relationship between the deformation field and the pressure field of the multi-stable state cell string are established, the pressure inversion is carried out, the pressure data of the cavity to be tested is obtained, and multiple multi-stable state cell numbers are connected in series to form The structure of the solid-branched Euler Bernoulli beam is simulated for stress analysis, establishing the mapping relationship between deformation field and pressure field under the nonlinear external force field, and realizing the pressure measurement of passive human cavity.

Benefits of technology

It realizes high-precision measurement of pressure in the human cavity without external power supply or complex electronic equipment, improves the safety and comfort of measurement, simplifies the equipment structure, is easy to integrate into medical equipment, provides continuous dynamic diagnostic information, and improves the Accuracy and efficiency of pressure measurement.

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Abstract

The invention provides a passive human body cavity pressure measuring method and system based on a multistable cell string, and the method comprises the steps: receiving the deformation data of the multistable cell string, and enabling the multistable cell string to deform according to the pressure change of a to-be-measured cavity; carrying out stress analysis on the deformation of the multistable cell element string to obtain cell element stress data; establishing a mapping relation between a deformation field and a pressure field based on the cell element stress data; and according to the mapping relationship, performing pressure inversion on the deformation data of the multistable cell element string to obtain pressure data of the cavity to be measured. The pressure change in the human body cavity can be responded through deformation of the multistable cell element string, then calibration or conversion of pressure data and deformation data is carried out through the mapping relation between the deformation field and the pressure field, all pressure indexes obtained after pressure measurement are rapidly read and converted, and the pressure measurement efficiency of the human body cavity is improved.
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Citation Information

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