Search

CN-121987154-A - Non-implanted bone healing monitoring sensor

CN121987154ACN 121987154 ACN121987154 ACN 121987154ACN-121987154-A

Abstract

The invention discloses an implantable bone healing monitoring sensor, which relates to the technical field of medical monitoring and comprises a sensor main body, wherein a signal acquisition end is arranged at the bottom of the sensor main body, a transmission end is arranged at one side of the top of the sensor main body, a first threshold interval, a second threshold interval and a third threshold interval which respectively correspond to different fracture healing stages are prestored in a main control chip, and the main control chip is configured to control an indicator lamp to display different on-off states after comparing an acquired physiological signal with the threshold intervals, so that a patient can intuitively know the current fracture healing stage only by observing the color and the flickering mode of the indicator lamp without understanding complex impedance values, blood oxygen values and other professional data, thereby greatly reducing the use threshold of home monitoring of the patient and solving the problem that the prior monitoring equipment can acquire effective information only by professional interpretation.

Inventors

  • CUI MANYI

Assignees

  • 淮安市淮安医院（淮安市肿瘤医院）

Dates

Publication Date
20260508
Application Date
20260318

Claims (9)

  1. 1. The implantable bone healing monitoring sensor comprises a sensor main body (1), and is characterized in that a signal acquisition end (2) is arranged at the bottom of the sensor main body (1), a transmission end (3) is arranged at one side of the top of the sensor main body (1), and a plurality of groups of indicator lamps (4) are arranged at one side of the top of the sensor main body (1) which is positioned at the transmission end (3); A circuit board (5) is arranged in the sensor main body (1), and a main control chip (51), a signal acquisition module (52) and an indicator lamp driving module (53) are integrated on the circuit board (5); A first threshold interval and a second threshold interval which respectively correspond to different fracture healing stages are prestored in the main control chip (51); The input end of the signal acquisition module (52) is electrically connected with the signal acquisition end (2), and the output end of the signal acquisition module (52) is electrically connected with the main control chip (51) and is used for acquiring physiological signals of fracture parts and transmitting the physiological signals to the main control chip (51); the input end of the indicator light driving module (53) is electrically connected with the main control chip (51), and the output end of the indicator light driving module (53) is electrically connected with a plurality of groups of indicator lights (4); The main control chip (51) is configured to receive physiological signals acquired by the signal acquisition module (52), compare the physiological signals with a first threshold interval and a second threshold interval respectively, control the indicator lamp driving module (53) to drive the multiple groups of indicator lamps (4) to display a first on-off state when the physiological signals fall into the first threshold interval, and control the indicator lamp driving module (53) to drive the multiple groups of indicator lamps (4) to display a second on-off state when the physiological signals fall into the second threshold interval.
  2. 2. The implantable bone healing monitoring sensor according to claim 1, wherein a third threshold interval is pre-stored in the main control chip (51), and when the physiological signal falls into the third threshold interval, the main control chip (51) controls the indicator light driving module (53) to drive the plurality of groups of indicator lights (4) to display a third on-off state.
  3. 3. The implantable bone healing monitoring sensor according to claim 1, wherein the signal acquisition module (52) comprises an impedance measurement unit (521) and a photoelectric measurement unit (522), wherein input ends of the impedance measurement unit (521) and the photoelectric measurement unit (522) are electrically connected with the signal acquisition end (2), output ends of the impedance measurement unit (521) and the photoelectric measurement unit (522) are electrically connected with the main control chip (51), and the main control chip (51) is configured to simultaneously receive an impedance signal acquired by the impedance measurement unit (521) and a photoelectric signal acquired by the photoelectric measurement unit (522), perform weighted fusion processing on the impedance signal and the photoelectric signal, generate a fused physiological signal, and compare the fused physiological signal with a first threshold interval and a second threshold interval.
  4. 4. The implantable bone healing monitoring sensor according to claim 1, wherein the main control chip (51) is pre-stored with a first weight coefficient and a second weight coefficient, and the weighted fusion process is fusion physiological signal=first weight coefficient×impedance signal+second weight coefficient×photoelectric signal.
  5. 5. The implantable bone healing monitoring sensor according to claim 1, wherein the main control chip (51) is configured to perform a time alignment process on the impedance signal and the photoelectric signal when the acquisition times of the impedance signal and the photoelectric signal are not synchronized, the time alignment process including interpolation or resampling.
  6. 6. The implantable bone healing monitoring sensor according to claim 1, wherein an attaching pad (6) is mounted at the bottom of the sensor body (1), a protective layer (7) is attached and connected to the bottom of the attaching pad (6), and the inner side wall of the attaching pad (6) is sleeved on the surface of the signal acquisition end (2).
  7. 7. An implantable bone healing monitoring sensor according to claim 1, wherein a first strap (8) is mounted on one side of the sensor body (1), and a collar (9) is mounted on a front end of the first strap (8).
  8. 8. An implantable bone healing monitoring sensor according to claim 1, wherein a second strap (10) is mounted on the other side of the sensor body (1), and an elastic band (11) is mounted on the front end of the second strap (10).
  9. 9. The implantable bone healing monitoring sensor according to claim 8, wherein a velcro is mounted on the back of the elastic band (11), and the surface of the elastic band (11) is inserted into the inner wall of the collar (9).

Description

Non-implanted bone healing monitoring sensor Technical Field The invention relates to the technical field of medical monitoring, in particular to an implantable bone healing monitoring sensor. Background In the fields of biomedical engineering and bone surgery monitoring, monitoring of fracture healing is important for evaluating treatment effects and making a rehabilitation plan. With the rapid development of sensor technology and microelectronic technology, implantable physiological signal monitoring technology has great potential in fracture healing monitoring due to the advantages of non-invasiveness, convenience and the like. The technology provides indirect information about the fracture healing process for doctors by monitoring physiological parameters such as bioelectrical impedance, blood oxygen saturation and the like of fracture parts, is beneficial to timely adjusting treatment schemes and promotes recovery of patients. However, the existing implantable bone healing monitoring technology still faces a problem in practical application that the stability and accuracy of the monitoring signal are easily limited by a single signal source. Current techniques rely mostly on a single type of physiological signal to monitor, such as assessing fracture healing status by bioelectrical impedance or blood oxygen saturation alone. However, a single signal source is extremely easy to be influenced by various factors such as the skin state of a patient, muscle contraction, external environment interference and the like in the monitoring process, so that the monitoring signal fluctuates, and the accuracy of fracture healing process assessment is further influenced. For example, muscle contractions in a patient's daily activities may cause a transient change in bioelectrical impedance that is not a direct reflection of the fracture healing process, but may be misread as a change in healing status, and thus improvements are needed. Disclosure of Invention The invention aims to provide an implantable bone healing monitoring sensor, which is used for solving the problem that the stability and accuracy of monitoring signals in the prior art are easily limited by a single signal source. In order to achieve the aim, the invention provides the technical scheme that the implantable bone healing monitoring sensor comprises a sensor main body, wherein a signal acquisition end is arranged at the bottom of the sensor main body, a transmission end is arranged at one side of the top of the sensor main body, and a plurality of groups of indicator lamps are arranged at one side of the top of the sensor main body, which is positioned at the transmission end; A circuit board is arranged in the sensor main body, and a main control chip, a signal acquisition module and an indicator lamp driving module are integrated on the circuit board; A first threshold interval and a second threshold interval which respectively correspond to different fracture healing stages are prestored in the main control chip; The input end of the signal acquisition module is electrically connected with the signal acquisition end, and the output end of the signal acquisition module is electrically connected with the main control chip and is used for acquiring physiological signals of the fracture part and transmitting the physiological signals to the main control chip; The input end of the indicator light driving module is electrically connected with the main control chip, and the output end of the indicator light driving module is electrically connected with a plurality of groups of indicator lights; The main control chip is configured to receive the physiological signals acquired by the signal acquisition module, compare the physiological signals with a first threshold interval and a second threshold interval respectively, control the indicator lamp driving module to drive the multiple groups of indicator lamps to display a first on-off state when the physiological signals fall into the first threshold interval, and control the indicator lamp driving module to drive the multiple groups of indicator lamps to display a second on-off state when the physiological signals fall into the second threshold interval. Further, a third threshold interval is pre-stored in the main control chip, and when the physiological signal falls into the third threshold interval, the main control chip controls the indicator lamp driving module to drive the plurality of groups of indicator lamps to display a third on-off state. Further, the signal acquisition module comprises an impedance measurement unit and a photoelectric measurement unit, wherein the input ends of the impedance measurement unit and the photoelectric measurement unit are electrically connected with the signal acquisition end, the output ends of the impedance measurement unit and the photoelectric measurement unit are electrically connected with a main control chip, and the main control chip is configured to rece