Air bag type intelligent radial artery compression hemostat

Abstract

The utility model discloses an air bag type intelligent radial artery compression hemostat, which relates to the technical field of medical instruments and comprises a transparent substrate, a wrist strap, a pulse wave detection module, a compression air bag, an inflation and deflation module, a lithium battery and a circuit control board. The transparent base plate is fixed to a radial artery puncture opening of a patient through the wrist strap, the compression air bag is fixed to the lower portion of the transparent base plate in a pasted mode, the pulse wave detection module is fixed to the lower portion of the compression air bag in a pasted mode, and the inflation and deflation module is installed on the upper portion of the transparent base plate and communicated with the compression air bag below the transparent base plate through a pipeline. The circuit control board is fixedly installed above the inflation and deflation module and the lithium battery and electrically connected with the inflation and deflation module, the lithium battery and the pulse wave detection module. By detecting and analyzing pulse wave changes of a puncture opening of a patient under different compression degrees, the pressure of the compression air bag is automatically adjusted to stop bleeding, and the occurrence rate of radial artery embolism (RAO) is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an airbag-type intelligent radial artery compression hemostat. Background Technology

[0002] The radial artery approach is an important access route for interventional diagnosis and treatment, offering advantages such as minimal invasiveness, simple bandaging, minimal impact on patient activity post-operatively, and less patient discomfort, leading to its widespread use in interventional procedures. Post-radial artery intervention, hemostasis requires compression of the puncture site, a process that is time-consuming. The magnitude of the pressure applied during hemostasis is crucial; excessive pressure can cause ischemia in surrounding tissues, swelling and bleeding in distal limbs, and even nerve damage; insufficient pressure will not achieve hemostasis.

[0003] Postoperatively, radial artery puncture surgery initially uses elastic bandages for hemostasis. A cylindrical gauze pad is placed along the radial artery at the puncture site, and pressure is applied while the sheath is removed. Gauze and an elastic bandage are then applied on top, and the bandage is loosened periodically as needed. However, bandage hemostasis is relatively complex and time-consuming. It can also compress veins, obstructing blood flow and causing swelling in the affected limb, leading to poor patient tolerance. With advancements in coronary artery disease treatment, specialized radial artery hemostatic devices have become increasingly available. Currently, commonly used radial artery compression hemostatic devices fall into two main categories: pressure plate compression devices and pneumatic compression devices. However, in practice, doctors often rely on experience to apply appropriate pressure, which can sometimes lead to excessive pressure and radial artery occlusion, causing a series of postoperative complications. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a pneumatic intelligent radial artery compression hemostat that can monitor the amplitude of the radial artery pulse wave in real time and analyze and judge the degree of compression on the radial artery based on this, so as to achieve the function of compression hemostasis of the radial artery and effectively reduce the incidence of postoperative RAO.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: an airbag-type intelligent radial artery compression hemostat, including a transparent substrate, a wristband, a compression airbag, a pulse wave detection module, an inflation / deflation module, a lithium battery, and a circuit control board.

[0006] The transparent substrate is fixed to the patient's radial artery puncture site by a wristband, and a through hole is provided on the transparent substrate. The wristband is connected to both sides of the transparent substrate and its tightness can be adjusted. The compression airbag is attached and fixed to the bottom of the transparent substrate. The pulse wave detection module is attached and fixed to the bottom of the compression airbag and abuts against the patient's radial artery puncture site. The inflation / deflation module is installed above the transparent substrate and is connected to the compression airbag below the transparent substrate through a pipe. The pipe passes vertically through the through hole on the transparent substrate. The lithium battery is located above the transparent substrate and is arranged in parallel with the inflation / deflation module. The circuit control board is installed and fixed above the inflation / deflation module and the lithium battery, and is electrically connected to the inflation / deflation module, the lithium battery, and the pulse wave detection module.

[0007] The transparent substrate is fixed to the patient's hand by a wristband. Both ends of the transparent substrate have slots. One end of the wristband is fixed to the slot at one end of the transparent substrate, and the other end of the wristband passes through the other end of the transparent substrate and wraps around it for adhesion.

[0008] The transparent substrate has a concave "inverted" shaped structure on one side, and a piece of silicone is attached directly below the "inverted" shaped structure. There is a rectangular protrusion below the transparent substrate, and a through hole is formed on the transparent substrate.

[0009] The pulse wave detection module includes silicone and a flexible piezoelectric pressure sensor. The flexible piezoelectric pressure sensor is attached directly below the silicone and abuts against the patient's radial artery puncture site. The pulse wave detection module is electrically connected to the circuit control board via wires.

[0010] The inflation / deflation module includes an air pump, a solenoid valve, and a "T"-shaped pipe. The air pump and solenoid valve are arranged in parallel and fixed above the transparent substrate, and are respectively connected to the left and right ends of the "T"-shaped pipe. The lower end of the "T"-shaped pipe passes through a through hole on the transparent substrate and is connected to the compression airbag. The control ends of the air pump and solenoid valve are electrically connected to the circuit control board through wires.

[0011] The circuit control board includes: a power management circuit, a microcontroller, a signal acquisition and conditioning circuit, and a button control circuit.

[0012] The beneficial effects of this invention are as follows: The transparent substrate is fixed to the puncture site on the patient's hand via a wristband. The amplitude of the radial artery pulse wave is monitored in real time by a pulse wave detection module, and the measurement data is transmitted to the microcontroller on the circuit control board. After analysis and processing, the microcontroller determines the degree of radial artery compression. When the radial artery compression is insufficient, the microcontroller controls the air pump to inflate the compression bladder, thereby increasing the compression of the radial artery and enhancing the hemostatic effect. When the radial artery compression is excessive, the microcontroller controls the solenoid valve to deflate the compression bladder, thereby reducing the pressure applied to the radial artery and preventing excessive pressure on the radial artery from causing radial artery occlusion. In summary, the airbag-type intelligent radial artery compression hemostasis device proposed in this invention is an effective, safe, and scientific method for hemostasis after coronary intervention. It can achieve open hemostasis, maintaining normal radial artery flow while simultaneously achieving hemostasis at the coronary intervention site, avoiding radial artery damage and reducing the incidence of radial artery embolism (RAO). It is of great significance for saving medical resources, efficiently treating the condition, and reducing the workload of medical staff. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 For the Figure 1 Vertical unfolded diagram of each component;

[0015] In the diagram: 1 Transparent substrate, 2 Wristband, 3 Compression airbag, 4 Pulse wave detection module, 5 Inflation / depression module, 6 Lithium battery, 7 Circuit control board, 11 Uterine artery silicone, 41 Sensor silicone, 42 Flexible piezoelectric pressure sensor, 51 Air pump, 52 Solenoid valve, 53 Connecting pipe. Detailed Implementation

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, a pneumatic radial artery compression hemostat includes a transparent substrate (1), a wristband (2), a compression pneumatic balloon (3), a pulse wave detection module (4), an inflation / deflation module (5), a lithium battery (6), and a circuit control board (7).

[0018] A transparent substrate (1) is fixed to the patient's radial artery puncture site by a wristband, and a through hole is opened on the transparent substrate (1). The wristband (2) is connected to both sides of the transparent substrate (1) and can be adjusted in tightness. The compression airbag (3) is pasted and fixed below the transparent substrate (1). The pulse wave detection module (4) is pasted and fixed below the compression airbag (3) and abuts against the patient's radial artery puncture site. The inflation and deflation module (5) is installed above the transparent substrate (1) and is connected to the compression airbag (3) below the transparent substrate (1) through a connecting pipe (53). The connecting pipe (53) passes vertically through the through hole on the transparent substrate (1). The lithium battery (6) is located above the transparent substrate (1) and is arranged in parallel with the inflation and deflation module (5). The circuit control board (7) is installed and fixed above the inflation and deflation module (5) and the lithium battery (6) and is electrically connected to the inflation and deflation module (5), the lithium battery (6) and the pulse wave detection module (4).

[0019] In this utility model, the transparent substrate (1) is fixed to the patient's hand by the wristband (2). Both ends of the transparent substrate (1) are provided with slots. One end of the wristband is fixed to the slot at one end of the transparent substrate (1), and the other end of the wristband (2) passes through the other end of the transparent substrate (1) and wraps around to attach it. The wristband is sewn with Velcro, which can adjust the tightness and adapt to patients with different wrist sizes.

[0020] The transparent substrate (1) has a concave "inverted" shaped structure on one side, and a piece of ulnar artery silicone (11) is attached directly below the "inverted" shaped structure to compress the ulnar artery and achieve open hemostasis; there is a rectangular protrusion below the transparent substrate (1), which increases the thickness of the substrate directly above the puncture point so that the compression balloon (3) can apply sufficient pressure to the radial artery puncture point; a through hole is opened on the transparent substrate (1) so that the connecting pipe (53) connecting the balloon (3) and the inflation / deflation module (5) passes through the substrate.

[0021] The pulse wave detection module (4) includes a sensor silicone (41) and a flexible piezoelectric pressure sensor (42). The flexible piezoelectric pressure sensor (42) is attached directly below the sensor silicone (41) and abuts against the patient's radial artery puncture site. The soft silicone helps to enhance the sensitivity of the flexible piezoelectric pressure sensor (42) and reduce the impact of the air pump (51) vibration on the sensor. The flexible piezoelectric pressure sensor uses a flexible organic polymer as the sensitive material, which can fit closely to the patient's skin and improve the patient's wearing comfort.

[0022] The inflation / deflation module (5) includes an air pump (51), a solenoid valve (52), and a “T”-shaped connecting pipe (53). The air pump (51) and the solenoid valve (52) are arranged in parallel and fixed above the transparent substrate (1), and are respectively connected to the left and right ends of the “T”-shaped connecting pipe (53). The lower end of the “T”-shaped connecting pipe (53) passes through the through hole on the transparent substrate (1) and is connected to the compression airbag (3). The control ends of the air pump (51) and the solenoid valve (52) are electrically connected to the circuit control board (7) through wires.

[0023] The circuit control board (7) includes: a power management circuit, a microcontroller, a signal acquisition and conditioning circuit, and a button control circuit. The power management circuit includes a lithium battery (6) charging circuit and a switching power supply circuit, which are used to charge the lithium battery (6) and supply power to the microcontroller and other chips on the circuit board. The microcontroller serves as the control core of the entire circuit board to realize automatic control of each part of the circuit. The signal acquisition and conditioning circuit is used to acquire, amplify and filter the signal output by the piezoelectric pressure sensor. The button control circuit is used to control the opening and closing of the entire circuit system.

[0024] The working principle of this utility model is as follows: When in use, the transparent substrate (1) is fixed to the puncture site on the patient's hand by the wrist strap. The amplitude of the radial artery pulse wave is monitored in real time by the pulse wave detection module (4), and the measurement data is transmitted to the microcontroller on the circuit control board (7). After the microcontroller analyzes and processes the data, it determines the degree of radial artery compression. When the degree of radial artery compression is insufficient, the microcontroller controls the air pump (51) to inflate the compression airbag (3), thereby increasing the degree of radial artery compression and enhancing the hemostasis effect. When the degree of radial artery compression is too high, the microcontroller controls the solenoid valve (52) to deflate the compression airbag (3), thereby reducing the pressure applied to the radial artery and preventing the patient's radial artery from being compressed too much and causing radial artery occlusion.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pneumatic intelligent radial artery compression hemostat, characterized in that: It includes a transparent substrate (1), a wristband (2), a compression airbag (3), a pulse wave detection module (4), an inflation / deflation module (5), a lithium battery (6), and a circuit control board (7); The transparent substrate (1) is fixed to the patient's radial artery puncture site by a wristband, and a through hole is opened on the transparent substrate (1). The wristband (2) is connected to both sides of the transparent substrate (1) and can be adjusted in tightness. The compression airbag (3) is pasted and fixed below the transparent substrate (1). The pulse wave detection module (4) is pasted and fixed below the compression airbag (3) and abuts against the patient's radial artery puncture site. The inflation and deflation module (5) is installed above the transparent substrate (1) and is connected to the compression airbag (3) below the transparent substrate (1) through a pipe. The pipe passes vertically through the through hole on the transparent substrate (1). The lithium battery (6) is located above the transparent substrate (1) and is arranged in parallel with the inflation and deflation module (5). The circuit control board (7) is installed and fixed above the inflation and deflation module (5) and the lithium battery (6) and is electrically connected to the inflation and deflation module (5), the lithium battery (6) and the pulse wave detection module (4).

2. The pneumatic intelligent radial artery compression hemostat according to claim 1, characterized in that: The transparent substrate (1) is fixed to the patient's hand by a wristband. Both ends of the transparent substrate (1) have openings. One end of the wristband is fixed to the opening at one end of the transparent substrate (1), and the other end of the wristband passes through the other end of the transparent substrate (1) and wraps around to bond it.

3. The pneumatic intelligent radial artery compression hemostat according to claim 1, characterized in that: The transparent substrate (1) has a concave "inverted" shaped structure on one side, and a piece of silicone is pasted directly below the "inverted" shaped structure. The transparent substrate (1) has a rectangular protrusion below it, and a through hole is opened on the transparent substrate (1).

4. The pneumatic intelligent radial artery compression hemostat according to claim 1, characterized in that: The pulse wave detection module (4) includes silicone (41) and a flexible piezoelectric pressure sensor (42). The flexible piezoelectric pressure sensor (42) is attached directly below the silicone (41) and abuts against the radial artery puncture site of the patient. The pulse wave detection module (4) is electrically connected to the circuit control board (7) through wires.

5. The pneumatic intelligent radial artery compression hemostat according to claim 1, characterized in that: The inflation / deflation module (5) includes an air pump (51), a solenoid valve (52), and a "T"-shaped pipe (53). The air pump (51) and the solenoid valve (52) are arranged in parallel and fixed above the transparent substrate (1), and are respectively connected to the left and right ends of the "T"-shaped pipe (53). The lower end of the "T"-shaped pipe (53) passes through the through hole on the transparent substrate (1) and is connected to the compression airbag (3). The control ends of the air pump (51) and the solenoid valve (52) are electrically connected to the circuit control board (7) through wires.

6. The pneumatic intelligent radial artery compression hemostat according to claim 1, characterized in that: The circuit control board (7) includes: a power management circuit, a microcontroller, a signal acquisition and conditioning circuit, and a key control circuit.

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