Anti-virus device of high-pressure injection device system kit
By using a three-way valve and a dual anti-backflow valve structure in the high-pressure injection device system kit, the problems of backflow caused by anti-backflow valve failure and low blood pressure are solved, achieving safe drug injection and prevention of cross-infection.
Patent Information
- Application Number
- CN202520159925.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing high-pressure injection device system kits, the anti-backflow valve may fail or low blood pressure may cause backflow, posing a risk of cross-infection.
A three-way valve is used to connect the system tubing to the patient tubing, and two anti-backflow valves are installed on the patient tubing to enhance the anti-backflow effect. At the same time, medication is injected through a syringe connected to the three-way valve.
It effectively prevents small viruses from flowing back into the system pipeline, avoids cross-infection, and enables convenient and safe drug injection.
Smart Images

Figure CN223831526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-pressure injection technology, specifically to an anti-virus device for a high-pressure injection device system kit. Background Technology
[0002] The high-pressure infusion system kit is an instrument used for injecting contrast agents and normal saline during CT, MRI, ultrasound, and cardiovascular angiography using a high-pressure infusion pump. The system tubing within the kit connects to the patient tubing, utilizing the pressure of the infusion pump to deliver the contrast agent or normal saline into the patient's body. The patient tubing is typically an indwelling needle or an intravenous infusion needle. Because the high-pressure infusion system kit needs to administer contrast agents or normal saline to different patients multiple times, a backflow prevention valve is often installed on the patient tubing to prevent small viruses carried by different patients from flowing back into the system tubing and potentially infecting other patients.
[0003] While installing an anti-backflow valve on the patient's tubing provides some protection, when the anti-backflow valve malfunctions or the patient's blood pressure drops below 2 kPa, the anti-backflow disc inside the valve cannot effectively prevent backflow. This means that fluid from the patient's tubing can pass through the anti-backflow valve and enter the system tubing, posing a risk of cross-infection. To address these issues, this invention provides an antiviral device for a high-pressure injection device system kit. Utility Model Content
[0004] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide an antiviral device for a high-pressure injection device system kit, wherein the system tubing is connected to the patient tubing via a three-way valve; this avoids the occurrence of backflow through the anti-backflow valve due to failure of the anti-backflow valve and low blood pressure; and by setting two anti-backflow valves, the technical problems mentioned in the background art are solved.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an antiviral device for a high-pressure injection device system kit, wherein the system pipeline in the high-pressure injection device system kit is connected to the patient pipeline through a three-way valve, and one inlet end of the three-way valve is sealed by a plug.
[0006] Preferably, the patient tubing is provided with anti-backflow valve A and anti-backflow valve B in the forward and backward directions.
[0007] Preferably, after the plug is removed, the inlet end of the three-way valve is connected to the drug injection syringe to inject drugs into the patient's tubing.
[0008] Preferably, the system pipeline is a Y-shaped pipeline with two inlets and one outlet. The outlet pipe of the system pipeline is connected to one inlet end of the three-way valve. The two inlet pipes of the system pipeline are respectively connected to the contrast agent syringe and the saline syringe. A stop clamp C is installed on the outlet pipe of the system pipeline.
[0009] Preferably, one inlet pipe of the system pipeline is connected to the contrast agent syringe through a three-way connector A, and the other outlet end of the three-way connector A is connected to the contrast agent bottle through a branch pipe A, with a stop clamp A installed on the branch pipe A.
[0010] Preferably, another inlet pipe of the system pipeline is connected to the saline syringe through a tee connector B, and the other outlet end of the tee connector B is connected to the saline bottle through a branch pipe B, with a stop clamp B installed on the branch pipe B.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. The system pipeline of this utility model is connected to the patient pipeline through a three-way valve; this avoids the situation where the anti-backflow valve fails or the blood pressure is too low, causing backflow through the anti-backflow valve, effectively preventing cross-infection caused by the backflow of parvovirus into the system pipeline; and by setting two anti-backflow valves, the anti-backflow effect is enhanced.
[0013] 2. When it is necessary to add medication to the patient, the cap can be removed and the medication can be conveniently and safely injected into the patient's body by connecting the injection syringe to the inlet end of the three-way valve. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A schematic diagram of the anti-virus device in the high-pressure injection device system kit provided by this utility model.
[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle.
[0017] Figure 3 for Figure 1 Enlarged view of section B in the middle.
[0018] Figure 4 for Figure 1 A schematic diagram showing the structure of removing the injection syringe and installing the stopper cap.
[0019] Figure 5 for Figure 4 Enlarged view of section C.
[0020] Explanation of reference numerals in the attached diagram: 1-System tubing, 11-Stop clamp C, 2-Patient tubing, 21-Anti-backflow valve A, 22-Anti-backflow valve B, 3-Three-way valve, 31-Plug cap, 4-Injector, 5-Contrast agent syringe, 51-Three-way connector A, 52-Branch tube A, 521-Stop clamp A, 6-Saline syringe, 61-Three-way connector B, 62-Branch tube B, 621-Stop clamp B, 63-Saline bottle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1:
[0023] like Figures 1 to 5 As shown, this embodiment provides an antiviral device for a high-pressure injection device system kit. The system tubing 1 within the high-pressure injection device system kit is connected to the patient tubing 2 via a three-way valve 3. One inlet end of the three-way valve 3 is sealed with a cap 31. To prevent patient blood from flowing back into the system tubing 1, anti-backflow valves A21 and B22 are sequentially installed in the front and rear directions of the patient tubing 2. The use of two anti-backflow valves enhances the anti-backflow effect. Specifically, after removing the cap 31, medication is injected into the patient tubing 2 via a drug injection syringe 4. When medication needs to be administered to the patient, the cap 31 can be removed, and the drug injection syringe 4 can be connected to the inlet end of the three-way valve 3 for convenient and safe medication administration to the patient.
[0024] Please see Figure 2 As shown, system tubing 1 is a Y-shaped tubing with two inlets and one outlet. The outlet of system tubing 1 is connected to one inlet end of the three-way valve 3. The two inlet pipes of system tubing 1 are connected to contrast agent syringe 5 and saline syringe 6, respectively. A stop clamp C11 is installed on the outlet pipe of system tubing 1. In use, contrast agent or saline is injected into system tubing 1 through contrast agent syringe 5 and saline syringe 6, and then contrast agent or saline is injected into the body through patient tubing 2. In addition, when injection is not required, the stop clamp C11 is used to stop the flow.
[0025] Please see Figure 3As shown, one inlet pipe of system pipeline 1 is connected to contrast agent syringe 5 via tee connector A51, and the other outlet end of tee connector A51 is connected to contrast agent bottle 53 via branch pipe A52. A stop clamp A521 is installed on branch pipe A52. In use, stop clamp C11 clamps system pipeline 1 while stop clamp B621 clamps branch pipe B62. Stop clamp A521 is opened, and contrast agent needle from contrast agent bottle 53 is drawn into contrast agent syringe 5. Then stop clamp A521 is closed and stop clamp C11 is opened, and contrast agent is injected into the human body through contrast agent syringe 5. It is convenient and practical. Similarly, another inlet pipe of system line 1 is connected to saline syringe 6 via tee connector B61, and the other outlet end of tee connector B61 is connected to saline bottle 63 via branch pipe B62. A stop clamp B621 is installed on branch pipe B62. In use, stop clamp C11 clamps system line 1 while stop clamp A521 clamps branch pipe A52, and saline syringe 6 draws saline from saline bottle 63 into saline syringe 6. Then stop clamp B621 is closed and stop clamp C11 is opened, and saline is injected into the human body through saline syringe 6, which is convenient and practical.
[0026] In this invention, the system tubing 1 and the patient tubing 2 are connected via a three-way valve 3. This prevents backflow from occurring due to valve failure or low blood pressure, effectively preventing cross-infection caused by parvovirus flowing back into the system tubing 1. The addition of two backflow valves further enhances the backflow prevention effect. Additionally, when medication needs to be administered to the patient, the cap 31 can be removed, and the medication can be conveniently and safely injected into the patient via the syringe 4 connected to one inlet of the three-way valve 3.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An antivirus device for a high-pressure injection device system kit, characterized in that, The system tubing (1) within the high-pressure injection device system kit is connected to the patient tubing (2) via a three-way valve (3), one inlet end of which is sealed by a plug (31).
2. The antivirus device of the high-pressure injection device system kit as described in claim 1, characterized in that, The patient tubing (2) is provided with anti-backflow valve A (21) and anti-backflow valve B (22) in the front and back directions respectively.
3. The antivirus device of the high-pressure injection device system kit as described in claim 2, characterized in that, After the plug (31) is removed, the inlet end of the three-way valve (3) injects medication into the patient tubing (2) through the connected injection syringe (4).
4. The antivirus device of the high-pressure injection device system kit as described in claim 3, characterized in that, The system pipeline (1) is a Y-shaped pipeline with two inlets and one outlet. The outlet pipe of the system pipeline (1) is connected to one inlet end of the three-way valve (3). The two inlet pipes of the system pipeline (1) are connected to the contrast agent syringe (5) and the saline syringe (6) respectively. A stop clamp C (11) is installed on the outlet pipe of the system pipeline (1).
5. The antivirus device of the high-pressure injection device system kit as described in claim 4, characterized in that, One inlet pipe of the system pipeline (1) is connected to the contrast agent syringe (5) through a three-way connector A (51), and the other outlet end of the three-way connector A (51) is connected to the contrast agent bottle (53) through a branch pipe A (52). A stop clamp A (521) is installed on the branch pipe A (52).
6. The antivirus device of the high-pressure injection device system kit as described in claim 5, characterized in that, The other inlet pipe of the system pipeline (1) is connected to the saline syringe (6) through a three-way connector B (61), and the other outlet end of the three-way connector B (61) is connected to the saline bottle (63) through a branch pipe B (62). A stop clamp B (621) is installed on the branch pipe B (62).