The article is devoted to the study of the device for assessing the distribution of pressure receptacle on the tissues of the limb. The urgency of this topic is the need to improve the prosthetics and increase the effectiveness of rehabilitation of patients with lost limbs. The analysis of this problem testifies that the main complexity of the prosthetics is the pressure at the spatial points of support. To obtain an anatomically proper receiver of the cult, it is necessary to try to transfer the load to certain paradise-they are a cult or evenly distribute the load on the cult. Most often, the mismatch of the receiver of the cult is a problem of poor performance, rather than the concept of a prosthetic. This match may be the result of a bad duct sleeve or poor alignment of the receiver of the cult. It should be taken into account that the parameters causing the physiological damage to the cult are the normal pressure and the shear stress at the boundary between the prosthesis and the limb.
This article presents data on the design of the apparatus, which is based on the tensorezosive sensors. Resistive pressure sensors are essentially resistors that change the value of their resistance (in ohms), depending on the force of pressing on the sensitive element. 201These sensors are inexpensive, easy to use, but have a slight margin of error. Since the task is not the maximum accurate measurement, but the ability to get the value of pressure and minimize it, then the data sensors absolutely satisfy our requirements.
The operating system of the device is based on the Arduino platform, which allows you to safely reproduce the required number of devices without spending a lot of money. The data visualization procedure is intuitively simple and user-friendly. Due to the ability to measure the pressure of the cult on the cult receptacle, the device allows the prosthetist to reduce the time for anatomical adjustment of the prosthesis under the patient.
The device was tested in the conditions of the hospital of the Kiev state-owned experimental Prosthetic and orthopedic enterprise. The difficulties encountered in installing sensors on the cult will be solved by creating a cuff, which will be a compression stocking with pockets to change the position of the sensors, which will make it versatile.