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CN-122004854-A - Human implantation depth self-adaptive sensor

CN122004854ACN 122004854 ACN122004854 ACN 122004854ACN-122004854-A

Abstract

The invention relates to the field of medical detection instruments, in particular to a human implantation depth self-adaptive sensor. The sensor comprises a sensor shell and a probe fixedly connected with the sensor shell, wherein a plurality of reaction areas positioned at different axial positions are arranged on the probe, biological enzymes which are in contact reaction with human tissue fluid are arranged outside the probe in the reaction areas, and an induction antenna is arranged on the sensor shell and is used for transmitting detection electric signals to a human body and receiving feedback electric signals formed by reflection or conduction of different tissue layers of the human body. According to the invention, through the cooperative work of probe multiple reaction areas, induction antenna positioning and main board screening, after the battery is powered, the antenna probe signals identify the tissue layers of the reaction areas, the main board collects the ideal layer current output results, the problems of low detection efficiency caused by complicated operation and time consumption of manual adjustment of the detection depth by medical staff are solved, the detection stability is improved, the operation threshold is reduced, and the individual difference is adapted.

Inventors

  • LUO DUO
  • CAO GUANG
  • Zeng Xiaoe

Assignees

  • 重庆道普医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20251231

Claims (10)

  1. 1. The human implantation depth self-adaptive sensor is characterized by comprising a sensor shell and a probe fixedly connected with the sensor shell; A plurality of reaction areas are sequentially distributed on the probe along the axial direction, and biological enzymes which are in contact reaction with human tissue fluid are arranged on the outer side of the probe of each reaction area; The sensor shell is provided with an induction antenna which is used for transmitting detection electric signals to a human body and receiving feedback electric signals formed by reflection or conduction of different tissue layers of the human body; The sensor shell is internally and fixedly connected with a battery and a sensor main board, the battery is electrically connected with the sensor main board, the induction antenna is electrically connected with the battery through the sensor main board, and the sensor main board is respectively and electrically connected with the induction antenna and a probe in the reaction zone; The sensor main board is used for processing feedback electric signals transmitted by the induction antenna into tissue layer positions of the reaction areas, collecting current signals of the reaction areas in the preset ideal tissue layer according to the tissue layer positions of the reaction areas as detection signals, and processing the detection signals into detection results.
  2. 2. The human body implantation depth self-adaptive sensor of claim 1, wherein a depth interval which can cover a preset ideal tissue layer of all subjects is determined as an ideal detection range by relying on pre-stored clinical experiment data, and when the probe is implanted into a human body, the axial position of each reaction area on the probe comprises any depth point in the ideal detection range.
  3. 3. The sensor of claim 1, wherein four sensing antennas are fixedly connected in the sensor housing and are uniformly distributed in four directions.
  4. 4. The sensor of claim 3, wherein when any one of the sensing antennas transmits a detection signal to the human body, the other three sensing antennas receive feedback signals.
  5. 5. The sensor of claim 1, wherein the sensor housing is fixedly connected with a rubberized fabric on one side, and the rubberized fabric is attached to the skin surface of the human body when the probe is implanted into the human body.
  6. 6. The human body implantation depth self-adaptive sensor of claim 1, wherein the sensor housing comprises a circular cap and a circular chassis, the cap is coaxial with the chassis, the edge of the cap is fixedly connected with one side of the chassis, an internal cavity is formed between the chassis and the cap when the chassis is fixedly connected with the cap, the sensor main board and the battery are fixedly connected with the sensor housing in the internal cavity, the other side of the chassis is fixedly connected with an adhesive tape, the radius of the chassis is larger than the maximum depth of the probe implanted into a human body, and the radius of the chassis is larger than the radius of the cap.
  7. 7. The sensor of claim 6, wherein one end of the sensing antenna passes through the sensor housing and is electrically connected with the sensor main board in the internal cavity, and the other end of the sensing antenna passes through the sensor housing and extends to the edge of the chassis in a meandering manner.
  8. 8. The sensor of claim 6, wherein the probe connector is further fixedly connected to the inner cavity of the sensor housing and electrically connected to the sensor main board; the two ends of the probe are mutually perpendicular and are L-shaped, one end of the probe is fixedly connected with the probe connector in the inner cavity, and the other end of the probe penetrates through the center of the chassis to extend outwards and is perpendicular to the chassis; The contact area of the probe and the probe connector is provided with a plurality of reaction interfaces, and the reaction interfaces are in one-to-one correspondence with the reaction areas and are electrically connected with the reaction areas; The probe connector takes the position information of the reaction area corresponding to the reaction interface on the probe as a detection position, the probe connector collects a current signal passing through the reaction interface as a detection signal, and the detection signal is associated with the detection position and is transmitted to the sensor main board.
  9. 9. The human body implantation depth self-adaptive sensor of claim 6, wherein the chassis is provided with a round groove clamped with the edge of the cap, a fixed shaft penetrating through the sensor main board and fixedly connected with the center of the cap is arranged in the center of the round groove, fixing columns fixedly connected with the sensor main board are arranged in four directions on the edge of the round groove, the battery is a button battery, the sensor main board is sheet-shaped, the sensor main board is provided with a mounting hole matched with the shape of the button battery, and the probe connector is positioned between the sensor main board and the chassis and fixedly connected with the chassis.
  10. 10. The human implant depth adaptive sensor according to claim 1, comprising the following application steps: s10, penetrating the probe into a human body, and pressing the sensor shell to enable the adhesive tape to be attached to the skin surface of the human body; S20, the probe connector takes the position information of the reaction area corresponding to the reaction interface on the probe as a detection position, the probe connector collects a current signal passing through the reaction interface as a detection signal, and the detection signal is associated with the detection position and is transmitted to the sensor main board; s30, regulating the current output by the battery to the induction antenna by the sensor main board so that the induction antenna emits detection electric signals to the human body, receiving feedback electric signals formed by reflection or conduction of different tissue layers of the human body by the induction antenna, and transmitting the feedback electric signals to the sensor main board; And S40, analyzing the feedback electric signals by the sensor main board to obtain the depth of each tissue layer, acquiring a depth range of a preset ideal tissue layer as an acquisition depth range, acquiring detection signals associated with detection positions in the acquisition depth range, marking the detection signals as target detection signals, and processing the target detection signals as detection results.

Description

Human implantation depth self-adaptive sensor Technical Field The invention relates to the field of medical detection instruments, in particular to a human implantation depth self-adaptive sensor. Background The detection of the human implantation probe is one of important development branches of medical instruments, and the core consists of a probe containing specific enzyme liquid, a sensor main board responsible for signal processing and a protective shell. After the probe is implanted into a human body, enzyme in a reaction area of the probe can perform biochemical reaction with human body fluid, the concentration of a detected object is positively correlated with the current formed by the reaction, and the sensor main board converts the current signal into readable detection data so as to realize minimally invasive monitoring of the physiological index. The conventional implantation probe is provided with only a single fixed reaction area, and the implantation depth cannot be adjusted. However, the thickness of different tissue layers (including fat layers, epidermis layers, muscle layers, etc.) of different individuals and different parts of the same body is different, and the probe with fixed depth is easy to be implanted in a non-ideal way, for example, deep fat or muscle tissue which is too deep and possibly enters into blood vessels to be sparse, and too shallow stays in the epidermis tissue, and the detection precision is greatly reduced due to the difference of the concentration and the quantity of body fluids with different depths. In order to solve the defect that the traditional fixed depth probe is easy to be implanted in a non-ideal way due to the thickness difference of the fat layers of the human body, part of the implanted probe starts to adopt a structure capable of flexibly adjusting the penetration depth so as to dynamically adapt to the optimal detection depth of the reaction area. For example, according to the emitter disclosed in the chinese patent application CN111657962a, depth adjustment and control are achieved by cooperation of a positioning component and a sliding component, wherein the positioning component (including a clamping rib and a groove) and the sliding component (including a sliding rail and a sliding block) are respectively integrated with a bracket and a base, the bracket is indirectly connected with a probe, the base is used as a fixed reference, when a medical staff rotates an upper cover, the upper cover drives the bracket to rotate relative to the base through a clamping structure, at the moment, the sliding rail on the bracket slides in cooperation with the sliding block on the base, and the probe is synchronously driven to extend or retract along the axial direction, so that the implantation depth of a probe reaction area is changed. However, the adjustment mode of the emitter still depends on manual operation of medical staff, when the emitter is used, the medical staff needs to fix the base by one hand, rotate the upper cover to align the mark by the other hand, the process needs to observe and subjectively judge whether the adjustment is in place or not in real time, the adjustment range is limited by the length of the sliding rail and the number of the grooves, the single adjustment range is small, and the probe can reach the optimal depth only by multiple times of trial rotation for individuals with large fat layer thickness differences or medical staff with insufficient experience, so that the operation complexity is increased, the implantation time is prolonged, and the clinical high-efficiency requirement is difficult to meet. Disclosure of Invention The invention provides a human implantation depth self-adaptive sensor, which aims to solve the problems of high operation times and long time and low clinical detection efficiency caused by manual adjustment of the probe penetration depth by medical staff. In order to solve the technical problems, the application provides the following technical scheme: The human implantation depth self-adaptive sensor comprises a sensor shell and probes fixedly connected with the sensor shell, wherein a plurality of reaction areas are sequentially distributed on the probes along the axial direction, biological enzymes which are in contact with human tissue fluid for reaction are arranged on the outer sides of the probes of the reaction areas, an induction antenna is arranged on the sensor shell and is used for transmitting detection electric signals to a human body and receiving feedback electric signals formed by reflection or conduction of different tissue layers of the human body, a battery and a sensor main board are fixedly connected in the sensor shell, the battery is electrically connected with the sensor main board, the induction antenna is electrically connected with the battery through the sensor main board, the sensor main board is respectively electrically connected with the induction antenna and the probe