Discrete bioelectrical impedance identification device

Abstract

The invention discloses a discrete bioelectrical impedance identification device, which comprises a shell, a control processing circuit arranged in the shell, and a detection device, wherein the shell is provided with conductive points which are partially exposed out of the shell; the conductive points are electrically connected with the control processing circuit; the detection device comprises a probe and a connecting rod; an accommodating cavity for accommodating the probe is arranged in the connecting rod to sleeve the outside of the probe, and a conductive needle is arranged at one end, far away from the probe, of the connecting rod; one end of the conductive needle is electrically connected with the probe and the other end is electrically connected with the control processing circuit through a mode of propping against the conductive points; the shell is fixedly connected with the connecting rod through a detachable connection mode; when the shell is fixedly connected with the connecting rod, the conductive needle props against the conductive points; when the shell is separated from the connecting rod, the conductive needle is separated from the conductive points. Compared with an integral bioelectrical impedance identification device in the prior art, on one hand, the utilization rate of a product is improved and the use cost is reduced; and on the other hand, waste is avoided and the product is more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a discrete bioelectrical impedance identification device. Background technique [0002] In the prior art, in surgical operations, especially spinal surgery and neurosurgery, it is necessary to fix the spine after laminectomy, and the built-in screws used in the fixation need to be driven into the vertebral body along the pedicle by the doctor. This kind of operation is generally a blind operation, and success depends on the experience of the doctor. Screws are knocked crookedly and enter the spinal canal to cause medical accidents. [0003] At present, there are two methods of assisting screw observation. One is to use intraoperative X-ray fluoroscopy to observe the position of the screw, but the disadvantage of this observation method is that it will cause radiation damage to the patient and cannot be used frequently; the other is to use evoked potential. The instrument...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in surgical operations, especially spinal surgery and neurosurgery, it is necessary to fix the spine after laminectomy, and the built-in screws used in the fixation need to be driven into the vertebral body along the pedicle by the doctor. This kind of operation is generally a blind operation, and its success depends on the experience of the doctor. Medical accidents often occur when the screw is crooked and enters the spinal canal.

[0003] At present, there are two methods of assisting screw observation. One is to use intraoperative X-ray fluoroscopy to observe the position of the screw, but the disadvantage of this observation method is that it will cause radiation damage to the patient and cannot be used frequently; the other is to use evoked potential. The instrument detects the sealing of the screw to the nerve root, and then judges whether the direction of the screw deviates, but its disadvantages are that the preoperative preparation time is long, the measurement accuracy is poor, and the evoked potential equipment is relatively expensive, not all hospital operating rooms standard configuration

[0004] The current identification device based on bioelectrical impedance technology can effectively avoid the shortcomings of the above two methods, and is faster and safer, but most of the current products are designed as a whole. figure 1 As shown, since the device is a battery-powered electronic device, it is not easy to clean and sterilize the product after use, so it can only be a disposable product, which not only causes a lot of waste, but also increases the cost of the operation

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