Device for simulating arterial blood pressure to fill arterial hemostix

Abstract

The utility model discloses a device for simulating arterial blood pressure to fill an arterial hemostix, and relates to the technical field of medical teaching instruments. The device structurally comprises an equipment outer box, a flip box, a reagent bottle, a peristaltic pump, a peristaltic pump operation panel, a joint mounting seat and a hose matched with the peristaltic pump, the peristaltic pump operation panel is mounted on the equipment outer box; a round hole for taking and placing a reagent bottle is formed in the top surface of the equipment outer box; the peristaltic pump penetrates through the side surface of the equipment outer box. According to the utility model, the pressurized surging process of the artery blood can be simply and quickly simulated through the peristaltic pump and the hose system, so that the blood sampling in the disposable artery collector is closer to the real condition; the whole system design avoids air mixing and test plasma pollution, and ensures the purity of the collected sample and the test accuracy; the defects in the prior art can be effectively avoided, the simulation accuracy and the operation convenience are improved, and meanwhile, the cleanness and safety of the experiment process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical teaching instruments, and particularly relates to a device for simulating arterial blood pressure to fill an arterial blood sampler. Background Technique

[0002] In medical education and clinical training, devices for simulating arterial blood pressure are one of the indispensable tools. These devices can help students and medical staff better understand the importance of arterial blood pressure and how to perform operations such as arterial blood sampling under different blood pressure conditions. However, existing simulated arterial blood sampling devices have some limitations, mainly in the following aspects:

[0003] First of all, many existing devices use compressed air to simulate arterial static pressure. This method may cause direct contact between synthetic blood and compressed air, thus posing a risk of contamination. If there are impurities in the compressed air, it may contaminate the synthetic blood and affect the accuracy of experimental results.

[0004] Secondly, some simulation devices may not be easy to remove air from the system during operation. The mixing of air will not only affect the authenticity of the blood sampling process but also may cause sample contamination, thus affecting subsequent experimental analysis and diagnostic results.

[0005] Furthermore, regarding the cleaning and maintenance of the device, the complexity of some designs makes cleaning difficult, which may become a breeding ground for bacteria and viruses, increasing the risk of cross-infection. At the same time, it also increases the difficulty and cost of device maintenance.

[0006] Finally, for devices that can simulate different arterial pressure conditions, there is often a lack of flexibility and adjustability, which limits the user's ability to adjust according to different teaching and training needs and reduces the applicability and practicality of the device.

[0007] Therefore, it is particularly important to develop a new device for simulating arterial blood pressure to fill an arterial blood sampler. Content of the Utility Model

[0008] The purpose of the utility model is to provide a device for simulating arterial blood pressure to fill an arterial blood sampler. By combining a reagent bottle, a peristaltic pump, a joint mounting seat, a hose, etc., the problem of large-scale contact between existing compressed air and synthetic blood contaminating the synthetic blood is solved.

[0009] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0010] The utility model relates to a device for simulating the filling of an arterial blood sampler with arterial blood pressure, which comprises an equipment outer box, a flip-top box, a reagent bottle, a peristaltic pump, a peristaltic pump operation panel, a connector mounting seat and a hose cooperating with the peristaltic pump; the peristaltic pump operation panel is installed on the equipment outer box; a round hole for taking and placing the reagent bottle is formed in the top surface of the equipment outer box; the equipment outer box and the flip-top box are hinged by a hinge; the peristaltic pump is installed through the side surface of the equipment outer box, and the peristaltic pump is arranged inside the flip-top box; one end of the hose is connected with the reagent bottle, and the other end of the hose is connected with the connector mounting seat; the connector mounting seat is fixedly penetrated through the top surface of the flip-top box; a U-shaped notch for the hose to pass through is formed in the side of the top surface of the flip-top box which is rotatably connected with the equipment outer box.

[0011] As a preferred technical solution of the utility model, the peristaltic pump operation panel is provided with a display screen, a start-stop switch, a forward-reverse switch and a speed regulator.

[0012] As a preferred technical solution of the utility model, the reagent bottle comprises a bottle body and a bottle cap which are integrally connected by screw threads; a conduit penetrating through to the inner bottom thereof is fixedly penetrated through the bottle cap; a ventilation switch is also fixedly penetrated through the bottle cap; the upper end of the conduit is connected with the hose.

[0013] As a preferred technical solution of the utility model, an observation window vertically arranged is formed in one side surface of the equipment outer box close to the round hole.

[0014] As a preferred technical solution of the utility model, at least six supporting feet are arranged on the bottom surface of the equipment outer box; the bottom surface of the flip-top box is flush with the bottom surface of the equipment outer box, and an inward concave handle groove is arranged on the bottom surface of the flip-top box.

[0015] The utility model has the following beneficial effects:

[0016] 1. Through the peristaltic pump and the hose system, the utility model can simply and quickly simulate the pressurized surging process of arterial blood, making the blood sampling in a disposable arterial sampler closer to the real situation.

[0017] 2. The overall system design of the utility model avoids the mixing of air and the pollution of test plasma, ensuring the purity of the collected sample and the accuracy of the test.

[0018] 3. By adjusting the rotation speed of the peristaltic pump, the utility model can simulate different arterial static pressures, facilitating the study of the blood sampling time and efficiency under different arterial pressure conditions.

[0019] 4. The utility model takes into account the convenience of cleaning and maintenance. The hose can be cleaned by circulating clear water, or the hose can be removed by opening the flip-top box for cleaning, ensuring the hygiene of the equipment and its long-term use.

[0020] 5. The design of the outer box and the flip box of the device of the present utility model, as well as the fixing method of the reagent bottle, all increase the stability and safety during the experiment process, and reduce the risk of tipping and damage.

[0021] 6. The present utility model is provided with an observation window, which is convenient for monitoring the remaining amount of test plasma in the reagent bottle, replenishing or replacing it in a timely manner, and ensuring the continuity of the experiment.

[0022] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the device for simulating arterial blood pressure to fill an arterial blood collector of the present utility model.

[0025] Figure 2 For Figure 1 Partial structural perspective view.

[0026] Figure 3 It is a schematic structural diagram when the flip box is turned upwards.

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1 - Outer box of the device, 2 - Flip box, 3 - Reagent bottle, 4 - Peristaltic pump, 5 - Peristaltic pump operation panel, 6 - Connector mounting seat, 7 - Hose, 8 - Disposable arterial blood collector, 11 - Round hole, 12 - Observation window, 13 - Support feet, 21 - U - shaped notch, 22 - Handle groove, 31 - Bottle body, 32 - Bottle cap, 33 - Conduit, 34 - Ventilation switch, 51 - Display screen, 52 - Start - stop switch, 53 - Forward - reverse switch, 54 - Speed regulator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Specific Embodiment 1:

[0031] Please refer to Figures 1-3 As shown, the utility model is a device for simulating arterial blood pressure to fill an arterial blood sampler, which includes an equipment outer box 1, a flip-top box 2, a reagent bottle 3, a peristaltic pump 4, a peristaltic pump operation panel 5, a joint mounting seat 6, and a hose 7 that cooperates with the peristaltic pump 4. The peristaltic pump operation panel 5 is installed on the equipment outer box 1. Among them, the peristaltic pump operation panel 5 is provided with a display screen 51, a start / stop switch 52, a forward / reverse switch 53, and a speed regulator 54. The joint mounting seat 6 is fixedly penetrated through the top surface of the flip-top box 2. A U-shaped notch 21 for the hose 7 to pass through is opened on one side of the top surface of the flip-top box 2 where it is rotatably connected to the equipment outer box 1. One end of the hose 7 is connected to the reagent bottle 3, and the other end of the hose 7 is connected to the joint mounting seat 6.

[0032] When used for the first time, use a large syringe to draw a tube of test plasma, and then connect the large syringe to the joint mounting seat 6. Turn on the start / stop switch 52, adjust the forward / reverse switch 53 to the reverse mode, and slowly push the piston rod of the large syringe during the start-up process of the peristaltic pump 4 until the liquid level in the reagent bottle 3 reaches 90%, then turn off the start / stop switch 52, and at the same time adjust the forward / reverse switch 53 to the forward mode.

[0033] When simulating arterial blood collection, first install a disposable arterial blood collector 8 on the joint mounting seat 6, and then start the start / stop switch 52. The peristaltic pump 4 drives the hose 7 to supply test plasma with pressure to the joint mounting seat 6, and automatically rushes into the disposable arterial blood collector 8 under the action of the test plasma pressure. When the amount of plasma entering the disposable arterial blood collector 8 reaches the expected amount, turn off the start / stop switch 52, and record the time when the simulated arterial blood pressure fills the arterial blood sampler and the rotation speed displayed on the display screen 51.

[0034] After replacing with the next disposable arterial blood collector 8, first rotate the knob of the speed regulator 54 to adjust the rotation speed of the peristaltic pump 4. The pressure output by the hose 7 of the peristaltic pump 4 is different at different rotation speeds, so as to simulate different real-time arterial static pressures. Continuously record the time when the simulated arterial blood pressure fills the arterial blood sampler and the rotation speed displayed on the display screen 51, which is convenient for analyzing and understanding the time difference of blood collection by the disposable arterial blood collector 8 under different arterial pressures.

[0035] In addition, the test plasma can also be poured in by opening the reagent bottle cap. When used for the first time, the air in the hose 7 and the joint mounting seat 6 needs to be emptied. A large syringe can be used to insert into the joint mounting seat 6 first, and the start / stop switch 52 is started to collect air.

[0036] This utility model uses a peristaltic pump 4 to drive the blood in the hose 7 to surge, simulating the pressurized surging process of arterial blood. The hose 7 and the disposable arterial collector 8 are respectively inserted at both ends of the joint mounting seat 6 to simulate the arterial blood collection process. During the process, no air will be mixed in, and the test plasma collected by the disposable arterial collector 8 will not be contaminated.

[0037] When cleaning the device, the peristaltic pump 4 can be used to circulate clear water to clean the hose 7, or the flip-top box 2 can be opened to remove the hose 7 for cleaning.

[0038] A circular hole 11 for taking and placing the reagent bottle 3 is provided on the top surface of the outer box 1 of the device. The reagent bottle 3 passes through the circular hole 11 and is placed inside the outer box 1 of the device, effectively preventing the reagent bottle 3 from tipping over and being damaged during the test process.

[0039] The outer box 1 of the device is hinged to the flip-top box 2 by a hinge. The peristaltic pump 4 is installed through the side surface of the outer box 1 of the device, and the peristaltic pump 4 is placed inside the flip-top box 2. Among them, at least six support feet 13 are provided on the bottom surface of the outer box 1 of the device. The bottom surface of the flip-top box 2 is flush with the bottom surface of the outer box 1 of the device, and an inwardly concave handle groove 22 is provided on the bottom surface of the flip-top box 2. The settable flip-top box 2 is convenient for removing the hose 7, and thus convenient for the cleaning work of the hose 7.

[0040] Among them, the reagent bottle 3 includes a bottle body 31 and a bottle cap 32 that are threadedly connected as a whole. A conduit 33 that penetrates through to its inner bottom is fixedly installed on the bottle cap 32. An air vent switch 34 is also fixedly installed through the bottle cap 32. The upper end of the conduit 33 is connected to the hose 7. When the air vent switch 34 is opened, it is used to offset the internal and external pressure difference of the bottle body 31.

[0041] In order to facilitate observing the remaining amount of the test plasma in the reagent bottle 3 from outside the outer box 1 of the device, a vertically arranged observation window 12 is provided on one side surface of the outer box 1 of the device close to the circular hole 11.

[0042] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A device for simulating arterial blood pressure to fill an arterial blood sampling device, characterized in that: It comprises an equipment outer box (1), a flip-top box (2), a reagent bottle (3), a peristaltic pump (4), a peristaltic pump operating panel (5), a connector mounting seat (6), and a hose (7) that matches the peristaltic pump (4); the peristaltic pump operating panel (5) is mounted on the equipment outer box (1); The top surface of the equipment outer box (1) is provided with a circular hole (11) for taking in and placing the reagent bottle (3); The device outer box (1) and the flip box (2) are hingedly connected via hinges; the peristaltic pump (4) is installed through the side of the device outer box (1), and the peristaltic pump (4) is placed on the inner side of the flip box (2); One end of the hose (7) is connected to the reagent bottle (3), and the other end of the hose (7) is connected to the connector mounting seat (6); The joint mounting seat (6) is fixedly connected to the top surface of the flip box (2); a U-shaped notch (21) for the hose (7) to pass through is provided on one side of the top surface of the flip box (2) that is rotatably connected to the equipment outer box (1).

2. The device for filling an arterial blood sampling device with simulated arterial blood pressure according to claim 1, characterized in that: The peristaltic pump operation panel (5) is provided with a display screen (51), a start / stop switch (52), a forward / reverse switch (53), and a speed regulator (54).

3. The device for filling an arterial blood sampling device with simulated arterial blood pressure according to claim 1, characterized in that: The reagent bottle (3) comprises a bottle body (31) and a bottle cap (32) which are connected as one body by threads; a conduit (33) which passes through the bottle cap (32) and reaches the inner bottom thereof is fixedly penetrated; a ventilation switch (34) is also fixedly penetrated through the bottle cap (32); the upper end of the conduit (33) is connected to the hose (7).

4. The device for filling an arterial blood sampling device with simulated arterial blood pressure according to claim 1, characterized in that: A vertically arranged observation window (12) is provided on a side surface of the equipment outer box (1) close to the circular hole (11).

5. The device for filling an arterial blood sampling device with simulated arterial blood pressure according to claim 1, characterized in that: The bottom surface of the device outer box (1) is provided with at least six supporting feet (13); the bottom surface of the flip box (2) is flush with the bottom surface of the device outer box (1), and the bottom surface of the flip box (2) is provided with an inwardly concave handle groove (22).

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