Radial artery blood flow monitoring device

Abstract

A radial artery blood flow monitoring device relates to the technical field of cardiovascular medicine. The radial artery blood flow monitoring device is based on a radial artery air bag compressor, an air bag is installed on the lower surface of the radial artery air bag compressor, the radial artery blood flow monitoring device comprises an air pump, a blood flow monitoring probe and a signal processor, the air pump is communicated with the air bag through an air supply pipe, and the blood flow monitoring probe is of an inverted-Y-shaped structure; the blood flow monitoring probes are embedded in the two sides of the radial artery air bag compressor, a first B-ultrasonic probe is arranged on one side of the lower end of each blood flow monitoring probe, a second B-ultrasonic probe is arranged on the other side of the lower end of each blood flow monitoring probe, one B-ultrasonic probe is used for monitoring the blood flow condition of the proximal end, and the other B-ultrasonic probe is used for monitoring the blood flow condition of the telecentric end. The upper end of the blood flow monitoring probe is connected with the signal processor through a wire. According to the scheme, the problems that in the operation process of an existing pneumatic compression device, the hemostasis pressure needs to be frequently evaluated and adjusted, the workload of nursing staff is large, and use and popularization are inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of cardiovascular medicine technology, specifically a radial artery blood flow monitoring device. Background Technology

[0002] In clinical practice, transradial artery intervention (TRA) is widely used in interventional therapy, but it carries the risk of radial artery occlusion (RAO). RAO is a common complication of TRA, which can lead to limb ischemia, nerve damage, and make subsequent radial artery treatment less effective. To reduce the risk of RAO, patency hemostasis is considered crucial, as it effectively reduces pressure and damage to the radial artery. However, studies show that 20% to 50% of patients struggle to achieve non-occlusive hemostasis during the procedure. Pneumatic compression devices (radial artery balloon compressors) have proven effective in this area.

[0003] However, existing pneumatic compression devices mainly use syringes to inflate and deflate the compression cuff, requiring frequent assessment and adjustment of the hemostatic pressure during operation. This results in a heavy workload for nursing staff and inconveniences for their use and promotion. Therefore, we propose a radial artery blood flow monitoring device to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a radial artery blood flow monitoring device to solve the problem mentioned in the background art that the existing pneumatic compression device requires frequent assessment and adjustment of hemostasis pressure during operation, which increases the workload of nursing staff and causes inconvenience to its use and promotion.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a radial artery blood flow monitoring device, based on a radial artery balloon compressor, wherein a balloon is installed on the lower surface of the radial artery balloon compressor, and the radial artery blood flow monitoring device includes an air supply pipe, an air pump, a blood flow monitoring probe, and a signal processor. The air pump is connected to the balloon through the air supply pipe. The blood flow monitoring probe has an inverted Y-shaped structure and is nested on both sides of the radial artery balloon compressor. A first ultrasound probe is provided on one side of the lower end of the blood flow monitoring probe, and a second ultrasound probe is provided on the other side of the lower end of the blood flow monitoring probe. One probe is used to monitor the blood flow at the proximal end, and the other probe is used to monitor the blood flow at the distal end. The upper ends of the first and second ultrasound probes are connected to the signal processor through wires.

[0006] Preferably, one end of the air supply pipe is connected to the air pump, and the other end is provided with an interface. An air inlet pipe is provided on one side of the airbag, and an airbag one-way valve is provided at the tail end of the air inlet pipe. The interface is movably and sealingly connected to the airbag one-way valve.

[0007] Preferably, the output terminal of the blood flow monitoring probe (i.e., the first ultrasound probe and the second ultrasound probe) is electrically connected to the input terminal of the signal processor, and the output terminal of the signal processor is electrically connected to the input terminal of the air pump.

[0008] Preferably, a touch screen is provided on the outer wall of the signal processor.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention relates to a blood flow monitoring probe, a signal processor, and an air pump. The blood flow monitoring probe consists of a first ultrasound probe and a second ultrasound probe, which can be used to monitor the blood flow at the proximal and distal ends of the radial artery balloon compressor, respectively. The signal processor can determine the radial artery balloon pressure based on the signals collected by the first and second ultrasound probes, thereby determining whether to inflate or deflate the balloon. This allows for precise control of the pressure applied to the radial artery balloon, preventing excessive pressure from causing radial artery occlusion. This improves the adoption rate and success rate of unobstructed hemostasis and solves the problem that existing pneumatic compression devices require frequent assessment and adjustment of hemostasis pressure during operation, resulting in a heavy workload for nursing staff and inconvenience for use and promotion. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the monitoring status of this utility model;

[0013] Figure 3 This is a schematic diagram of the present invention;

[0014] In the diagram: 1. Radial artery balloon compressor; 2. Balloon; 3. Air supply tube; 4. Air pump; 5. Blood flow monitoring probe; 501. First ultrasound probe; 502. Second ultrasound probe; 6. Signal processor; 7. Touch screen. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figure 1-3This utility model provides an embodiment of a radial artery blood flow monitoring device, based on a radial artery balloon compressor 1. An airbag 2 is installed on the lower surface of the radial artery balloon compressor 1. The radial artery blood flow monitoring device includes an air supply pipe 3, an air pump 4, a blood flow monitoring probe 5, and a signal processor 6. The air pump 4 is connected to the airbag 2 through the air supply pipe 3. The blood flow monitoring probe 5 has an inverted Y-shaped structure and is nested on both sides of the radial artery balloon compressor 1. A first ultrasound probe 501 is provided on one side of the lower end of the blood flow monitoring probe 5, and a second ultrasound probe 502 is provided on the other side of the lower end of the blood flow monitoring probe 5. One is used to monitor the blood flow at the proximal end, and the other is used to monitor the blood flow at the distal end. The upper end of the blood flow monitoring probe 5 is connected to the signal processor 6 through a wire.

[0017] One end of the air supply pipe 3 is connected to the air pump 4, and the other end is provided with an interface. An air inlet pipe is provided on one side of the airbag 2, and an airbag one-way valve is provided at the tail end of the air inlet pipe. The interface is movably and sealingly connected to the airbag one-way valve.

[0018] Please see Figure 1 and Figure 3 The output end of the blood flow monitoring probe 5 is electrically connected to the input end of the signal processor 6, and the output end of the signal processor 6 is electrically connected to the input end of the air pump 4. A touch screen 7 is provided on the outer wall of the signal processor 6. The signal processor 6 can control the inflation and deflation of the air pump 4 according to the feedback signals of the first ultrasound probe 501 and the second ultrasound probe 502, thereby accurately controlling the pressure applied by the radial artery balloon 2 and preventing the radial artery from being compressed due to excessive pressure.

[0019] Working principle: The radial artery balloon compressor 1 is fixed to the radial artery in the patient's forearm. This novel radial artery blood flow monitoring device is used when monitoring hemostatic pressure is required. The specific usage method is as follows: Connect the air pump 4 to the ventilation tube 8, seal the interface of the ventilation tube 8 to the one-way valve on one side of the balloon 2, then hold the blood flow monitoring probe 5 and secure the probe portion to both sides of the radial artery balloon compressor 1. Monitor the proximal / distal blood flow through the blood flow monitoring probe 5 and feed the signal back to the signal processor 6. In this embodiment, the first ultrasound probe 501 is used to monitor the proximal blood flow, and the second ultrasound probe 502 is used to monitor the distal blood flow. The signal processor 6 determines the radial artery balloon pressure based on the signals collected by the first ultrasound probe 501 and the second ultrasound probe 502. If unobstructed hemostasis can be achieved, the new radial artery blood flow monitoring device can be removed. If unobstructed hemostasis cannot be achieved, the balloon 2 is slowly deflated and monitoring continues. Once the radial artery blood flow is restored, deflation is stopped, and the radial artery blood flow monitoring device is removed.

[0020] For example, when the first ultrasound probe 501 detects blood flow from the proximal end to the distal end, and the second ultrasound probe also detects blood flow from the proximal end to the distal end, it indicates that the radial artery is patent and the radial artery balloon compressor 1 can achieve unobstructed hemostasis. Remove the blood flow monitoring probe 5 and disconnect the interface of the ventilation tube 8 from the balloon one-way valve.

[0021] When the first ultrasound probe 501 detects blood flow from the proximal to the distal end, while the second ultrasound probe either does not detect blood flow or detects blood flow from the distal to the proximal end (due to the communicating branches between the ulnar and radial arteries), it indicates that the radial artery balloon pressure is too high and there is a risk of radial artery occlusion. The signal processor 6 sends a signal to the air pump 4, instructing it to slowly deflate the balloon while continuing to monitor blood flow. If the second ultrasound probe 502 shows blood flow from the proximal to the distal end, it indicates that the radial artery has regained patency. At this point, the signal processor 6 sends a signal to the air pump 4 to stop deflation. The blood flow monitoring probe 5 is then removed, and the interface at the ventilation tube 8 is disconnected from the one-way valve of the balloon, completing the monitoring process.

[0022] In the prior art, the radial artery balloon compressor 1 is generally fixed to the patient's forearm for postoperative care of cardiac surgery patients to achieve unobstructed hemostasis.

[0023] The radial artery blood flow monitoring device provided by this utility model is used to monitor the radial artery blood flow of cardiac surgery patients during hemostasis using a radial artery balloon compressor. By monitoring the blood flow at the distal end, it can determine whether the blood vessel is blocked. It can assess and adjust the pressure of the balloon 2 in the radial artery balloon compressor 1 within 1-2 minutes to avoid excessive pressure causing the radial artery to be compressed and to improve the adoption rate and success rate of unobstructed hemostasis.

[0024] 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.

Claims

1. A radial artery blood flow monitoring device based on a radial artery pneumatic cuff (1) having a pneumatic bladder (2) mounted on its lower surface, characterized in that: The radial artery blood flow monitoring device comprises a gas supply pipe (3), a gas pump (4), a blood flow monitoring probe (5) and a signal processor (6), the gas pump (4) is communicated with the air bag (2) through the gas supply pipe (3), the blood flow monitoring probe (5) is a reverse Y-shaped structure, is nested on both sides of the radial artery air bag compressor (1), one side of the lower end of the blood flow monitoring probe (5) is provided with a first B-ultrasound probe (501), the other side of the lower end of the blood flow monitoring probe (5) is provided with a second B-ultrasound probe (502), one is used for monitoring the blood flow condition of the proximal end, and the other is used for monitoring the blood flow condition of the distal end, the upper end of the blood flow monitoring probe (5) is connected with the signal processor (6) through a wire.

2. The radial artery blood flow monitoring device of claim 1, wherein: One end of the gas supply pipe (3) is connected with the gas pump (4), the other end is provided with a connector, one side of the air bag (2) is provided with an air inlet pipe, the tail end of the air inlet pipe is provided with an air bag one-way valve, and the connector and the air bag one-way valve are movably and sealingly connected.

3. The radial artery blood flow monitoring device of claim 1, wherein: The output end of the blood flow monitoring probe (5) is electrically connected with the input end of the signal processor (6), and the output end of the signal processor (6) is electrically connected with the input end of the gas pump (4).

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