Pressure-blood flow characteristic relation measuring instrument for soles at standing positions and sitting postures

Abstract

The invention relates to a pressure-blood flow characteristic relation measuring instrument for soles at standing positions and sitting postures. The pressure-blood flow characteristic relation measuring instrument comprises a support platform, a hand rod, a load bearing table, a seat table, a dynamic pressure loading device, laser speckle blood flow measuring equipment and a control and computation unit. The support platform is a cuboid panel supported by cuboid columns; the hand rod, the load bearing table and the seat table are respectively sequentially mounted on the upper side of the support platform; the dynamic pressure loading device and the laser speckle blood flow measuring equipment are fixed to the lower side of the support platform; the dynamic pressure loading device comprises a cylindrical support rotary arm, a telescopic rod and a pressure sensor and is used for applying pressures to sole tissues of test persons; the laser speckle blood flow measuring equipment comprises a support rotary arm and a laser probe and is used for measuring the blood flow volumes of the sole tissues of the test persons; the applied pressures can be controlled by the control and computation unit, measured blood flow volume data can be recorded by the control and computation unit, and pressure-blood flow characteristic relations can be computed and displayed by the control and computation unit.

Description

[0001] 【Technical field】 [0002] The invention relates to medical equipment, in particular to a measuring instrument for the relationship between plantar pressure and blood flow characteristics in standing and sitting positions. [0003] 【Background technique】 [0004] Blood flow to the feet plays an important role in providing nutrients to the foot tissues, removing waste products, and maintaining healthy skin. Plantar compression is a common cause of foot tissue ischemia. Standing or sitting for a long time will exert excessive pressure on the foot tissue, which may cause tissue ischemia damage. Especially for diabetic patients, excessive plantar pressure is the main external stress factor causing foot ulcers in patients. In addition, medical shoes are a common conservative treatment for foot ulcer disease. It redistributes the pressure on the patient's sole, thereby changing the blood flow of the soft tissue in the patient's plantar pressure-increased area and pressure-unl...

AI Technical Summary

Problems solved by technology

[0005] At present, in the measurement of foot blood flow in healthy adults or patients with foot ulcers, the main focus is on the measurement of blood flow changes in a single area of ​​the human foot and the measurement of the blood flow response of the foot under single-area pressurization. Missing measurements of blood flow in multiple regions of the plantar tissue under zero or pressurized conditions

At the same time, in order to measure the change of plantar blood flow, the state of the subject in the supine position is mainly used, and the measurement of the multi-regional blood flow of the plantar of the human body in the weight-bearing position (such as standing position, sitting position) is lacking.

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