A high pressure syringe

CN224723498UActive Publication Date: 2026-09-08SUN YAT SEN UNIVERSITY CANCER CENTER (CANCER HOSPITAL AFFILIATED TO SUN YAT SEN UNIVERSITY CANCER RESEARCH INSTITUTE OF SUN YAT SEN UNIVERSITY)
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Patent Information

Application Number
CN202520491262.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-09-08
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

整个过程过渡依赖医护人员,在紧张的医疗环境中,不仅给医护人员带来高强度的劳动,还使得工作效率难以提高

Benefits of technology

[0013] The advantages of this utility model are:

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Abstract

The utility model discloses a high pressure syringe relates to syringe, including trolley and control platform, the top of trolley is equipped with brine bottle seat, left medicine bottle seat and right medicine bottle seat, the below of brine bottle seat, left medicine bottle seat and right medicine bottle seat all are equipped with the through groove and bubble detection sensor no.
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Description

Technical Field

[0001] This utility model relates to syringes, and more specifically, to a high-pressure syringe. Background Technology

[0002] High-pressure injectors are primarily used in the medical field for drug injection. They use high pressure to rapidly inject contrast agents and other drugs into blood vessels or body cavities, allowing for clear visualization of organs and tissues on imaging equipment. Contrast agents injected using high-pressure injectors generally need to be diluted with saline solution to achieve the appropriate concentration before injection. Furthermore, depending on the patient's physical condition and the characteristics of the contrast agent, stabilizers, anticoagulants, or local anesthetics are often added during injection. Currently, the injectable medication is often prepared in advance by medical staff. Preparing the medication involves opening the bottle, drawing up the medication, shaking, and dispensing. This entire process is overly reliant on medical staff, which, in the stressful medical environment, not only imposes high-intensity workloads on them but also hinders work efficiency. Moreover, the shaking process can easily introduce gas into the medication, resulting in air bubbles in the injected liquid. Utility Model Content

[0003] The technical problem this invention aims to solve is to address the shortcomings of existing technologies by providing a high-pressure injector. This injector, through a multi-vial installation design, eliminates the need for nurses to draw and prepare medication, thus improving work efficiency. Furthermore, the design of a bubble detection sensor effectively detects the presence of air bubbles in the infusion tubing, thereby ensuring injection safety.

[0004] The present invention discloses a high-pressure injector comprising a carriage and a control console mounted on one side thereof. The carriage has a saline bottle holder, a left medicine bottle holder, and a right medicine bottle holder on its upper part. Below each of the saline bottle holder, the left medicine bottle holder, and the right medicine bottle holder are provided a through groove for inserting an inner infusion tube and an air bubble detection sensor. The ends of the three inner infusion tubes are interconnected and connected to an inner infusion tube. A roller pump is installed in the carriage. An infusion tube clamp is provided on the side wall of the carriage. The inner infusion tube is clamped into the infusion tube clamp by the roller pump and extends to the outside of the carriage. A left side component is installed on the side wall of the carriage, and an outer infusion tube is provided on the left side component. The outer infusion tube is connected to the end of the inner infusion tube.

[0005] Preferably, the trolley is equipped with a pressure detection sensor and a second bubble detection sensor. The pressure detection sensor is located near the output end of the roller pump, and the second inner infusion tube passes through the pressure detection sensor and the second bubble detection sensor in sequence.

[0006] Preferably, a door panel is hingedly mounted on the trolley, and an operating handle is provided on the side of the door panel away from its hinged mounting. A push-button switch is installed in the trolley below the operating handle, and the power supply terminal of the roller pump is electrically connected to the push-button switch.

[0007] Preferably, each of the three internal infusion tubes is equipped with a control valve.

[0008] Preferably, tube clamp one and tube clamp two are installed on the side wall of the left side component, and tube clamp one and tube clamp two are located on two different surfaces of the left side component; a bubble detection sensor three is installed in tube clamp two, and an outer tube opening is opened in the left side component above tube clamp two, and the external infusion tube passes through tube clamp one, tube clamp two and the outer tube opening in sequence.

[0009] Preferably, a waste liquid cup is installed below the left side component.

[0010] Preferably, the trolley is equipped with a waste bin.

[0011] Preferably, a control lever is installed on one side of the trolley.

[0012] Beneficial effects

[0013] The advantages of this utility model are:

[0014] 1. The saline bottle holder, left medicine bottle holder, and right medicine bottle holder located on the top of the trolley allow for the placement of multiple medicine bottles for the high-pressure injector. During injection, the three inner infusion tubes are combined into one inner infusion tube, enabling the mixing of the medication for direct injection without the need for nurses to draw and prepare the medication, greatly improving work efficiency. At the same time, the high-pressure injection syringe is not required, avoiding cross-infection.

[0015] 2. Air bubble detection sensors are installed at different locations on the infusion tubing. Multiple air bubble detection sensors detect air bubbles in the tubing in real time, closely monitor the entire injection process, identify air bubbles during injection, and prevent air bubbles from being injected into the human body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the high-pressure injector of this utility model;

[0017] Figure 2 This is a schematic diagram of the side structure of the high-pressure injector of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the front mounting cavity of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the inner infusion tube of this utility model.

[0020] The components are as follows: 1-Trolley, 2-Control console, 3-Door panel, 4-Operating lever, 5-Disposal bin, 6-Waste liquid cup, 7-Left side component, 8-Saline bottle holder, 9-Left medicine bottle holder, 10-Right medicine bottle holder, 12-Passive groove, 13-Bubble detection sensor one, 14-Roller pump, 15-Infusion tube clamp, 17-Pressure detection sensor, 18-Bubble detection sensor two, 19-Front mounting cavity, 20-Operating handle, 21-Button switch, 22-Pipe clamp one, 23-Pipe clamp two, 24-Outer tube clamp, 25-Four-way connector, 26-Inner infusion tube one, 27-Inner infusion tube two. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0022] See Figures 1-4 This utility model discloses a high-pressure injector, comprising a trolley 1 and a control console 2 mounted on one side thereof. The trolley 1 has a saline bottle holder 8, a left medicine bottle holder 9, and a right medicine bottle holder 10 on its upper part, for mounting saline bottles, contrast agent bottles, or other medicine bottles, respectively. For example, the left medicine bottle holder 9 and the right medicine bottle holder 10 can each hold one contrast agent bottle, allowing for alternating injection of the two contrast agents, which is very suitable for large-dose injections; alternatively, the contrast agent bottle can be placed in the left medicine bottle holder 9, and other medicine bottles can be placed in the right medicine bottle holder 10. The medicines from all three bottles flow simultaneously into the infusion tubing, mix, and are then injected, eliminating the need for additional mixing, which is suitable for injections requiring the addition of a third medicine.

[0023] A front mounting cavity 19 is provided in the trolley 1 below the saline bottle holder 8, the left medicine bottle holder 9, and the right medicine bottle holder 10. The four-way connector 25, the roller pump 14, and the inner infusion tube are all located in the front mounting cavity 19. The top of the front mounting cavity 19 has three through slots 12 corresponding to the three medicine bottle holders. Three of the connectors of the four-way connector 25 are connected to the medicine bottles in the corresponding medicine bottle holders via the inner infusion tube 26 and its end puncture device. The inner infusion tube 26 extends out of the front mounting cavity 19 through the through slots 12, achieving initial positioning of the inner infusion tube 26. Furthermore, a bubble detection sensor 13 is installed in the front mounting cavity 19 below the through slots 12. The inner infusion tube 26 is placed in the bubble detection sensor 13 to detect whether air bubbles are present in the medicine within the inner infusion tube 26 during flow. The bubble detection sensor 13 is connected to the control console 2. When the control console 2 detects bubbles in the inner infusion tube 26 via the bubble detection sensor 13, it generates an alarm message and simultaneously cuts off the power to the roller pump 14 via the power controller, ceasing injection. It should be noted that the control console 2 is an existing component of a high-pressure injector, and this invention does not improve upon it; furthermore, the generation of the alarm message and the control of the power controller are also existing technologies, and this invention does not improve upon them either.

[0024] A roller pump 14 is installed in the trolley 1 below the four-way connector 25. The fourth connector of the four-way connector 25 is connected to the inner infusion tube 27, which serves as a manifold. The medications from the three medicine bottles are combined in the four-way connector 25 and then flow into the inner infusion tube 27. In addition, to control the supply of medication to each inner infusion tube 26, a control valve is installed in each of the three inner infusion tubes 26 in this embodiment. An infusion tube bayonet 15 is provided on the side wall of the trolley 1. The inner infusion tube 27 is engaged in the infusion tube bayonet 15 by the roller pump 14, and the inner infusion tube 27 extends to the outside of the trolley 1. A left side member 7 is installed on the side wall of the trolley 1. An outer infusion tube is provided on the left side member 7. The outer infusion tube is connected to the end of the inner infusion tube 27, realizing the pumping of the mixed medication from the inner infusion tube 27 to the outer infusion tube.

[0025] In this embodiment, a pressure sensor 17 and a bubble detection sensor 18 are installed in the front mounting cavity 19. The pressure sensor 17 is located near the output end of the roller pump 14, and the inner infusion tube 27 passes through the pressure sensor 17 and the bubble detection sensor 18 in sequence. Both the pressure sensor 17 and the bubble detection sensor 18 are electrically connected to the control console 2. The bubble detection sensor 18 can detect whether there are bubbles in the mixed medicine, while the pressure sensor 17 can detect whether the pumping pressure of the medicine meets the requirements.

[0026] To ensure greater safety and reliability during use, a door panel 3 is hingedly mounted in the front mounting cavity 19 of this embodiment. An operating handle 20 is located on the side of the door panel 3 away from its hinged mounting. A push-button switch 21 is installed in the front mounting cavity 19 below the operating handle 20. The power supply terminal of the roller pump 14 is electrically connected to the push-button switch 21. When the door panel 3 is opened, the push-button switch 21 is deactivated, causing the roller pump 14 to lose power and cease operation, thus reducing the risk of medical accidents.

[0027] For the left side component 7, tube clamp 1 22 and tube clamp 23 are installed on its side wall, and tube clamp 1 22 and tube clamp 23 are located on two different surfaces of the left side component 7. Both tube clamps are used to secure the external infusion tube. A bubble detection sensor 3 is installed in tube clamp 23 to further detect whether there are bubbles in the medicine passing through it. The bubble detection sensor 3 is connected to the control console. In this embodiment, all bubble detection sensors have the same function. An external tube bayonet 24 is opened in the left side component 7 above tube clamp 23. The external infusion tube passes through tube clamp 1 22, tube clamp 23 and external tube bayonet 24 in sequence to achieve the positioning of the external infusion tube.

[0028] Preferably, a waste liquid cup 6 is installed below the left side component 7 for collecting waste medicine, such as waste liquid generated when venting the infusion tube before injection, or waste medicine emptied from the tube after injection.

[0029] Preferably, the trolley 1 is equipped with a waste bin 5 for storing discarded medical supplies, such as infusion tubes, needles and their accessories.

[0030] Preferably, a control lever 4 is installed on one side of the trolley 1, which serves as the operating part to facilitate the overall movement of the high-pressure injector.

[0031] The working principle of this invention is as follows: Turn on the high-pressure injector and set the injection parameters via control panel 2. Next, open door panel 3 and install the inner infusion tubing, securing it in place. Place infusion bottles A and B in the left / right infusion bottle holders, and the saline bottle in the middle saline bottle holder 8, connecting the infusion bottles to the puncture device at the upper end of the inner infusion tubing. After the inner infusion tubing is installed, close door panel 3. Connect the end of the inner infusion tubing 27 to the outer infusion tubing, and connect the end of the outer infusion tubing to the intravenous infusion needle. After connection, purge air. After purging, perform intravenous puncture and start the injection. When the injection is complete and the needle needs to be removed, open door panel 3, disassemble the tubing, and discard the disassembled tubing in waste bin 5. Finally, turn off the machine.

[0032] It should be noted that the main improvements of this utility model to the high-pressure injector lie in the aforementioned installation structure of the vial holder, four-way connector, inner / outer infusion tubing, and the use and installation of the bubble detection sensor; however, this utility model does not improve other structures of the high-pressure injector, such as the trolley 1, control console 2, roller pump 14 and its drive mechanism. The bubble detection sensor used is an ultrasonic bubble sensor.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A high pressure injector comprising a trolley (1) and a control console (2) mounted on one side thereof, characterized in that, The trolley (1) is equipped with a saline bottle holder (8), a left medicine bottle holder (9), and a right medicine bottle holder (10) on its upper part. Below each of the saline bottle holder (8), left medicine bottle holder (9), and right medicine bottle holder (10) are a through groove (12) for inserting an inner infusion tube (26) and a bubble detection sensor (13). The ends of the three inner infusion tubes (26) are interconnected and connected to an inner infusion tube (27). A roller is installed in the trolley (1). The sub-pump (14) has an infusion tube bayonet (15) on the side wall of the trolley (1). The inner infusion tube (27) is clamped in the infusion tube bayonet (15) by the roller pump (14), and the inner infusion tube (27) extends to the outside of the trolley (1). A left side part (7) is installed on the side wall of the trolley (1). An outer infusion tube is provided on the left side part (7), and the outer infusion tube is connected to the end of the inner infusion tube (27).

2. A high pressure syringe according to claim 1, wherein The trolley (1) is equipped with a pressure detection sensor (17) and a bubble detection sensor (18). The pressure detection sensor (17) is located near the output end of the roller pump (14). The inner infusion tube (27) passes through the pressure detection sensor (17) and the bubble detection sensor (18) in sequence.

3. A high pressure syringe as defined in claim 1, wherein A door panel (3) is hinged on the trolley (1). An operating handle (20) is provided on the side of the door panel (3) away from its hinged installation. A push-button switch (21) is installed in the trolley (1) below the operating handle (20). The power supply terminal of the roller pump (14) is electrically connected to the push-button switch (21).

4. A high pressure syringe as defined in claim 1, wherein A control valve is installed in each of the three internal infusion tubes (26).

5. A high pressure syringe as defined in claim 1, wherein The left side part (7) is equipped with a tube clamp 1 (22) and a tube clamp 2 (23), and the tube clamp 1 (22) and the tube clamp 2 (23) are located on two different surfaces of the left side part (7); a bubble detection sensor 3 is installed in the tube clamp 2 (23), and an external tube clamp opening (24) is opened in the left side part (7) above the tube clamp 2 (23). The external infusion tube passes through the tube clamp 1 (22), the tube clamp 2 (23) and the external tube clamp opening (24) in sequence.

6. A high pressure syringe according to claim 5, wherein A waste liquid cup (6) is installed below the left side component (7).

7. A high pressure syringe as defined in claim 1, wherein The trolley (1) is equipped with a waste bin (5).

8. A high pressure syringe as defined in claim 1, wherein A control lever (4) is installed on one side of the trolley (1).