Electronic radial artery hemostat
By introducing a pneumatic pressure detection circuit and a display screen into the radial artery hemostat, the problem of inaccurate pressure adjustment in the prior art has been solved, achieving precise hemostasis and easy operation, and improving the safety and user experience of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东千舒达医疗科技有限公司
- Filing Date
- 2025-03-10
- Publication Date
- 2026-06-30
AI Technical Summary
Existing radial artery compression hemostats rely on experience and patient feedback when adjusting pressure, which cannot be precisely controlled and can easily lead to insufficient or excessive pressure, resulting in hemostasis failure or skin damage. In addition, the devices are large and complicated to wear.
An electronic radial artery hemostat was designed, which uses a pressure detection circuit and a microcontroller combined with a display screen to monitor and display the airbag pressure in real time. It connects to an external inflation device through a Luer connector to achieve precise adjustment of the airbag pressure. The wristband is connected using a Velcro buckle to simplify operation.
It achieves precise pressure adjustment and ease of operation, avoids skin damage and arterial blockage, and improves hemostasis and safety.
Smart Images
Figure CN224421076U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the field of auxiliary hemostasis devices, specifically an electronic radial artery hemostat that is structurally sound, easy to operate, and provides reliable hemostasis. Background technology:
[0002] Coronary intervention surgery typically involves puncturing the right radial artery. Post-operatively, hemostasis at the puncture site is achieved through bandaging or compression. Common compression methods include elastic bandages and tourniquets. Post-operatively, the tourniquet is routinely loosened every 2 or 4 hours, depending on the patient's condition, such as patient complaints of pain at the compression point, blood flow to the distal limb, skin temperature, and pulse near the compression site. Currently, doctors often adjust the tightness based on experience and patient complaints, which can easily lead to insufficient pressure applied to the puncture site, resulting in hemostasis failure. Conversely, excessive pressure can cause skin damage and blisters due to the tourniquet being too tight. Furthermore, prolonged compression of the punctured artery without timely adjustment can lead to occlusion of the punctured artery.
[0003] The most effective existing radial artery compression hemostat is the balloon-type hemostat. This device applies pressure to the puncture site via a balloon, evenly covering the puncture site and conforming to the skin of the wrist to achieve hemostasis. However, the pressure applied to the puncture site needs to be adjusted based on the patient's experience to avoid excessive or insufficient pressure. Clearly, the air pressure inside the balloon is highly correlated with the pressure applied to the puncture site. Higher air pressure results in a higher pressure value, while deflation lowers the pressure, requiring adjustment. Currently, pressure sensors are used to measure the balloon pressure to provide operators with a basis for adjusting the wristband tightness. However, the pressure value is related not only to the inflation and deflation of the balloon but also to the length of the wristband. This means that currently, after the hemostat is in place, operators rely primarily on experience and patient feedback to adjust the pressure, making it difficult to precisely adjust the pressure applied to the puncture site. Furthermore, existing balloon-type hemostats also suffer from problems such as large size and complex wearing procedures. Summary of the Invention:
[0004] This invention addresses the shortcomings and deficiencies of existing technologies by proposing an electronic radial artery hemostat that is structurally sound, easy to operate, and provides reliable hemostasis.
[0005] This utility model achieves its purpose through the following measures:
[0006] An electronic radial artery hemostat includes a wristband and a main unit. The wristband includes a compression hemostatic bladder and a first wristband and a second wristband respectively connected to both ends of the compression hemostatic bladder. The ends of the first wristband and the second wristband are provided with matching connecting parts. The main unit is connected to the outside of the wristband. The main unit includes an inflation / deflation air passage connected to the compression hemostatic bladder, an air pressure detection circuit connected to the inflation / deflation air passage, a microcontroller connected to the air pressure detection circuit, and a display component connected to the microcontroller.
[0007] One end of the inflation / deflation air circuit of this utility model is connected to the compression hemostasis airbag, and the other end is connected to the inflation interface. In order to improve the inflation efficiency, the inflation interface can adopt a Luer connector to facilitate connection with external inflation equipment. The inflation / deflation air circuit is provided with a T-connector and a detection branch connected to the air pressure detection circuit. The front end of the detection branch is connected to the inflation / deflation air circuit via the T-connector.
[0008] The connecting component of the wristband described in this utility model can be a matching adhesive buckle.
[0009] The air pressure detection circuit of this utility model is equipped with an air pressure sensor. The detection signal input terminal of the air pressure sensor is connected to the charging and discharging air path through the detection branch pipe. The air pressure sensor can be a CPS123 from Consensic, and the microcontroller is an STM32F103CBT6 from STMicroelectronics.
[0010] The hemostat main unit of this utility model has a housing, which consists of a snap-fit upper cover and a base. A control circuit board is fixed inside the housing. The air pressure detection circuit and microcontroller are mounted on the control circuit board. The display component is implemented using a display screen, which is also located inside the housing. The upper cover has a display window adapted to the display screen. A battery for power supply is also provided on the control circuit board. Furthermore, in order to improve the fixing effect of the internal components of the housing, a control circuit board bracket is also provided inside the housing. The control circuit board bracket has a contour similar to the shape of the housing and has an annular hollow area. The control circuit board bracket is fixedly connected to the housing by screws, specifically, it is mounted on the base by screws.
[0011] In use, this invention can be connected to an external inflation device via a Luer connector. When the inflation device inflates the compression hemostasis cuff through the inflation / deflation air path, the air pressure detection circuit can monitor the current air pressure in real time as the amount of gas in the cuff increases. This is achieved by the air pressure sensor working in conjunction with the detection branch tube connected to the inflation / deflation air path. The pressure value is displayed on the screen in real time, and the operator can accurately adjust the inflation / deflation operation based on the pressure data to achieve effective compression hemostasis at the puncture site without damaging the skin or causing arterial blockage.
[0012] Compared with the prior art, this utility model has significant advantages such as accurate monitoring, simple operation, and safety and reliability. Attached image description:
[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Appendix Figure 2 This is an exploded structural diagram of the main unit of the hemostat of this utility model.
[0015] Reference numerals: 1. Compression hemostasis airbag; 2. First wristband; 3. Second wristband; 4. Connecting component; 5. Hemostat main unit; 6. Inflation / depression air passage; 7. Inflation interface; 8. Control circuit board bracket; 9. Detection branch tube; 14. Pressure sensor; 10. Top cover; 11. Base; 12. Control circuit board; 13. Display component; 15. Battery. Detailed implementation method:
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Example:
[0018] As attached Figure 1 , 2 As shown, this example provides an electronic radial artery hemostat, which includes a wristband and a hemostat main unit 5. The wristband includes a compression hemostat bladder 1 and a first wristband 2 and a second wristband 3 respectively connected to the two ends of the compression hemostat bladder 1. The ends of the first wristband 2 and the second wristband 3 are provided with matching connecting parts 4. The hemostat main unit 5 is connected to the outside of the wristband. The hemostat main unit 5 is provided with an inflation / deflation air passage 6 connected to the compression hemostat bladder 1, an air pressure detection circuit connected to the inflation / deflation air passage, a microcontroller connected to the air pressure detection circuit, and a display component connected to the microcontroller.
[0019] In this example, one end of the inflation / deflation airway 6 is connected to the compression hemostasis airbag 1, and the other end is connected to the inflation port 7. In order to improve inflation efficiency and facilitate sealing after inflation, the inflation port 7 can be a Luer connector to facilitate connection with external inflation equipment. The inflation / deflation airway 6 is equipped with a T-connector and a detection branch pipe 9 connected to the air pressure detection circuit. The front end of the detection branch pipe 9 is connected to the inflation / deflation airway 6 via the T-connector.
[0020] The connecting component 4 of the wristband described in this example can be a matching Velcro fastener.
[0021] The air pressure detection circuit described in this example is equipped with an air pressure sensor 14. The detection signal input terminal of the air pressure sensor is connected to the charging and discharging air path through the detection branch pipe. The air pressure sensor can be a CPS123 from Consensic, and the microcontroller is an STM32F103CBT6 from STMicroelectronics.
[0022] The hemostat host 5 described in this example has a housing, which consists of a snap-fit upper cover 10 and a base 11. A control circuit board 12 is fixed inside the housing. The air pressure detection circuit and the microcontroller are set on the control circuit board 12. The display component 13 is implemented by a display screen, which is also set inside the housing. The upper cover has a display window adapted to the display screen. A battery 15 for power supply is also provided on the control circuit board.
[0023] To improve the fixation effect on the internal components of the housing, a control circuit board bracket 8 is also provided inside the housing in this example. The control circuit board bracket 8 has a similar outline to the housing and has an annular hollow area. The control circuit board bracket 8 is fixedly connected to the housing by screws, specifically, it is installed on the base by screws.
[0024] When in use, it can be connected to an external inflation device via a Luer connector. When the inflation device inflates the compression hemostasis cuff through the inflation / deflation air path, the air pressure detection circuit can monitor the current air pressure in real time as the amount of gas in the cuff increases. This is achieved by a pressure sensor in conjunction with a detection branch tube connected to the inflation / deflation air path. The pressure value is displayed on the screen in real time, and the operator can accurately adjust the inflation / deflation operation based on the pressure data to achieve effective compression hemostasis at the puncture site without damaging the skin at the puncture site or causing arterial blockage.
[0025] Compared with the prior art, this utility model has significant advantages such as accurate monitoring, simple operation, and safety and reliability.
Claims
1. An electronic radial artery hemostat, characterized in that, The device includes a wristband and a hemostat main unit. The wristband includes a compression hemostat airbag and a first wristband and a second wristband respectively connected to both ends of the compression hemostat airbag. The ends of the first wristband and the second wristband are provided with matching connecting parts. The hemostat main unit is connected to the outside of the wristband. The hemostat main unit is provided with an inflation / deflation air passage connected to the compression hemostat airbag, an air pressure detection circuit connected to the inflation / deflation air passage, a microcontroller connected to the air pressure detection circuit, and a display component connected to the microcontroller.
2. The electronic radial artery occlusion device of claim 1, wherein, One end of the inflation / deflation air passage is connected to the compression hemostasis airbag, and the other end is connected to the inflation port.
3. The electronic radial artery occlusion device of claim 2, wherein the occlusion device is configured to be worn on the wrist of the patient. The inflation interface uses a Luer connector.
4. The electronic radial artery hemostat according to claim 2, characterized in that, The charging / discharging air circuit is equipped with a T-connector and a detection branch pipe connected to the air pressure detection circuit. The front end of the detection branch pipe is connected to the charging / discharging air circuit via the T-connector.
5. An electronic radial artery hemostat according to claim 1, characterized in that, The wristband's connecting component uses a matching Velcro closure.
6. The electronic radial artery hemostat according to claim 1, characterized in that, The air pressure detection circuit is equipped with an air pressure sensor. The detection signal input terminal of the air pressure sensor is connected to the charging and discharging air path through the detection branch pipe. The air pressure sensor is a CPS123, and the microcontroller is an ST STM32F103CBT6.
7. The electronic radial artery hemostat according to claim 1, characterized in that, The hemostat main unit has a housing, which consists of a snap-fit top cover and a base. A control circuit board is fixed inside the housing. The air pressure detection circuit and microcontroller are mounted on the control circuit board. The display component is implemented using a display screen, which is also mounted inside the housing. The top cover has a display window adapted to the display screen. A battery for power supply is also mounted on the control circuit board.
8. An electronic radial artery hemostat according to claim 7, characterized in that, The housing also contains a control circuit board bracket, which has a similar outline to the housing and has an annular hollow area. The control circuit board bracket is fixedly connected to the housing by screws.