An inner tube installation structure of a high-pressure syringe

Abstract

The utility model discloses a kind of inner pipeline mounting structures of high-pressure syringe, it is related to syringe, including the front cavity of trolley front side being arranged in high-pressure syringe, interior bulkhead is installed in the front cavity, four-way joint is installed on the interior bulkhead, three joints of the four-way joint are respectively connected with one inner tube, another joint of the four-way joint is connected with header pipe, four-way pipeline switching valve for controlling the on-off of inner tube and header pipe is installed in the front cavity.The utility model realizes the design of multiple-in-one inner tube, medicine can be mixed and injected instantly, avoids the risk of cross infection, without medical staff on-site preparation of medicament, can better cope with the problem of prepared medicament being placed for too long due to injection delay caused by on-site emergency, also can greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to syringes, and more specifically, to an internal tubing installation structure for 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 needs and the characteristics of the contrast agent, stabilizers, anticoagulants, or local anesthetics are often added during injection. Currently, before injection, medical staff often prepare the injection solution in advance, then connect the solution bottle to the injection tubing and use a roller pump to deliver the drug. However, this method is not only time-consuming to prepare the drug but also carries the risk of cross-contamination during drug transfer. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an internal tubing installation structure for a high-pressure injector, which aims to achieve the effect of instant mixing and instant injection through an all-in-one internal tubing structure and its on / off control structure.

[0004] The present invention discloses an internal tubing installation structure for a high-pressure injector, comprising a front cavity disposed on the front side of the carriage of the high-pressure injector, an internal partition installed in the front cavity, a four-way connector installed on the internal partition, three of the four-way connectors being connected to an inner tube, the other connector being connected to a manifold, and a four-way tubing switching valve for controlling the on / off state of the inner tube and the manifold being installed in the front cavity;

[0005] The four-way pipeline switching valve includes three switching components installed in the front cavity. The pipeline pressure blocks of the switching components are all inserted into the internal partition and extend to one side of the four-way connector where the inner tube is installed. A door panel is hinged to the outside of the front cavity, and a top block is installed on the door panel. An inner tube channel is provided between the top block and the pipeline pressure block. Three linear motors are installed at the lower part of the trolley. The linear motors are connected to the first drive rod of the switching component through a pull rope.

[0006] Preferably, a plurality of guide wheels are rotatably mounted in the front cavity, and the pull rope is wound around the guide wheels and connected to the first drive rod of the switch component.

[0007] Preferably, both the top block and the door panel are transparent.

[0008] Preferably, the upper part of the front cavity has three through slots corresponding to the three inner tubes; wherein, the interface of the four-way connector near the through slot, the through slot in the middle, and the inner tube channel corresponding to the inner tube connected to the interface are located on the same central axis; and the four-way connector is provided with a tube clamp on one side of the connector on both sides of the central axis.

[0009] Preferably, a roller pump is installed on the internal partition below the four-way pipe switching valve. The internal partition between the roller pump and the four-way connector has an input channel on one side and an output channel on the other side. The manifold is installed in the roller pump through the input channel and outputs from the output channel.

[0010] Preferably, a pipe clamp is installed in the input channel, and a guide wheel is provided at the connection between the input channel and the roller pump.

[0011] Preferably, the input channel has a rounded corner structure on the side port near the four-way connector.

[0012] Preferably, the output channel has a rounded corner structure on the side port near the four-way connector.

[0013] Beneficial effects

[0014] The advantages of this utility model are:

[0015] 1. The uniquely designed four-way switching valve controls the on / off state of multiple inner tubes and manifolds, achieving a multi-functional inner tube design. This allows for immediate mixing and injection of medications, avoiding the risk of cross-infection. It eliminates the need for medical personnel to prepare medications on-site, better addressing the issue of prolonged storage of prepared medications due to injection delays caused by unforeseen circumstances, and significantly improving work efficiency. Furthermore, the four-way switching valve uses a linear motor as its drive source, offering higher stability in wire winding compared to other rotary motors. The linear motor's placement at the bottom of the trolley ensures the stability of the high-pressure injector and keeps the electric components away from the medication source, guaranteeing injection safety.

[0016] 2. By setting an input channel and an output channel between the four-way connector and the roller pump, the manifold can be positioned, which facilitates the roller pump to roll and pump the liquid medicine in the manifold, and the pumped liquid medicine pressure is more stable. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the high-pressure injector of this utility model;

[0018] Figure 2 This is a schematic diagram of the side structure of the high-pressure injector of this utility model;

[0019] Figure 3This is a three-dimensional schematic diagram of the multi-in-one inner tube installation structure of this utility model;

[0020] Figure 4 This is a front view (with the internal partition hidden) of the multi-in-one inner tube installation structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection of the multi-in-one inner tube of this utility model.

[0022] Among them: 1-Trolley, 2-Door panel, 3-Front cavity, 4-Internal partition, 5-Four-way connector, 6-Inner pipe, 7-Compressor pipe, 8-Switch component, 9-Pipe pressure block, 10-Top block, 11-Pull rope, 12-Guide wheel, 13-Through groove, 14-Roller pump, 15-Pipe clamp one, 16-Input channel, 17-Output channel, 18-Pipe clamp two, 19-Guide wheel. Detailed Implementation

[0023] 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.

[0024] See Figures 1-5 This utility model discloses an internal tubing installation structure for a high-pressure injector, comprising a front cavity 3 located at the front of the injector carriage 1. An internal partition 4 is installed within the front cavity 3, and a four-way connector 5 is mounted on the internal partition 4. Three connectors of the four-way connector 5 are connected to an inner tube 6, and the remaining connector is connected to a manifold 7. Through the design of the four-way connector 5, three vials can be connected to the three inner tubes one by one, thereby achieving mixing of different medications. The mixed medication flows into the manifold 7. For example, in cases requiring a large dosage, the three inner tubes can be connected to two contrast agent vials and one saline vial via a puncture device. The saline vial and one of the contrast agent vials simultaneously provide medication for injection. When the contrast agent vial is depleted, the other contrast agent vial and the saline vial continue to provide contrast agent, thus achieving uninterrupted large-dose medication supply.

[0025] To achieve the switching on and off of the inner tube, i.e., to meet the drug supply needs at different times, a four-way pipe switching valve for controlling the on / off of the inner tube 6 and the manifold 7 is installed in the front cavity 3 of this embodiment. The four-way pipe switching valve includes three switching components 8 installed in the front cavity 3. It should be noted that the switching components 8 involved in this utility model are prior art; their detailed structure is described in publication CN215821961U, and this utility model does not improve upon them. The pipe pressure block 9 of the switching component 8 is inserted into the internal partition 4 and extends to one side of the four-way connector 5 where the inner tube 6 is installed, as shown below. Figure 1As shown. A door plate 2 is hinged to the outside of the front cavity 3 to close the front cavity 3. A top block 10 is installed on the door plate 2, and an inner tube channel is provided between the top block 10 and the pipeline pressure block 9. The inner tube 6 passes through the inner tube channel. When the pipeline pressure block 9 is activated to squeeze the inner tube 6, the inner tube 6 is shut off, preventing the medicine inside from flowing into the four-way connector 5 for merging.

[0026] In this embodiment, to achieve more stable drive control, three linear motors are installed on the lower part of the trolley 1. The linear motors are connected to the first drive rod of the switch component 8 via pull ropes 11. Compared with the method of using motor rotation to reel in the wire, the linear motors make the pull rope 11 more stable during the pulling process, thereby achieving more precise control.

[0027] Preferably, multiple guide wheels 12 are rotatably mounted in the front cavity 3, and the pull rope 11 is wound around the guide wheels 12 and connected to the first drive rod of the switch component 8. The guiding effect of the guide wheels 12 on the pull rope 11 can further improve the stability of the pull rope during the pulling process.

[0028] Preferably, both the top block 10 and the door panel 2 are transparent. This design facilitates observation of the on / off state of the inner tube 6.

[0029] Furthermore, to better position the inner tube 6, three through slots 13 corresponding to the three inner tubes 6 are provided above the front cavity 3 in this embodiment, passing through the three inner tubes 6 respectively, so that they can connect to the medicine bottle above the placement trolley 1. Among them, the interface of the four-way connector 5 away from the roller pump 14, the through slot 13 in the middle position, and the inner tube channel corresponding to the inner tube connected to the interface are located on the same central axis. This makes the inner tube 6 in the middle vertical, ensuring that it can pass through the middle inner tube channel without deviating. The four-way connector 5 has a tube clamp 15 on one side of the connector on both sides of the central axis. These two tube clamps 15 are used to clamp the inner tubes 6 on the left and right sides respectively, and the clamp openings of the tube clamps 15 face the inner tube channel, so that the inner tube 6 can pass through the inner tube channel without deviating.

[0030] A roller pump 14 is installed on the internal partition 4 below the four-way pipe switching valve. An input channel 16 is provided on one side of the internal partition 4 between the roller pump 14 and the four-way connector 5, and an output channel 17 is provided on the other side. The manifold 7 is installed in the roller pump 14 through the input channel 16 and outputs through the output channel 17. By setting the input channel 16 and the output channel 17 between the four-way connector 5 and the roller pump 14, the manifold 7 can be positioned, thus facilitating the roller pump 14 to pump the liquid medicine in the manifold 7. A pipe clamp 18 is installed in the input channel 16 to position the manifold 7. A guide wheel 19 is provided at the connection between the input channel 16 and the roller pump 14 to guide the manifold 7.

[0031] Preferably, the input channel 16 has rounded corners on the side near the four-way connector 5 to prevent the manifold 7 from bending due to the corners at the input channel 16. Similarly, the output channel 17 also has rounded corners on the side near the four-way connector 5.

[0032] The working principle of this invention is as follows: The high-pressure injector is turned on, and injection parameters are set via the injector's control panel. Next, the door panel 2 is opened, and the inner tube 6 is installed and secured in place. Three medication bottles are placed on the trolley 1, and the medication bottles are connected to the puncture device at the upper end of the inner tube 6. After the inner tube 6 is installed, the door panel 2 is closed. The end of the inner tube 6 is connected to the external infusion tubing, and the end of the external infusion tubing is connected to the intravenous infusion needle. After connection, air purging can be performed. After purging, intravenous puncture can be performed, and then injection can begin. During injection, the switch component 8 corresponding to the saline bottle and one of the contrast agent bottles is activated first, causing the tubing pressure block 9 to release its pressure on the inner tube 6, thus opening the circuit. When the contrast agent in that bottle is used up, it is immediately switched to another contrast agent bottle to continue the medication supply. When the injection is complete and needle removal is required, the door panel 2 is opened, the tubing is disconnected, and finally, the machine is turned off.

[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. An internal tubing installation structure for a high-pressure injector, characterized in that, It includes a front cavity (3) located on the front side of the trolley (1) of the high-pressure injector, an internal partition (4) is installed in the front cavity (3), a four-way connector (5) is installed on the internal partition (4), three of the four-way connector (5) are respectively connected to an inner tube (6), the other connector of the four-way connector (5) is connected to a manifold (7), and a four-way pipeline switching valve for controlling the opening and closing of the inner tube (6) and the manifold (7) is installed in the front cavity (3); The four-way pipeline switching valve includes three switching components (8) installed in the front cavity (3). The pipeline pressure blocks (9) of the switching components (8) are all inserted in the internal partition (4) and extend to one side of the connector in the four-way connector (5) where the inner tube (6) is installed. A door plate (2) is hinged to the outside of the front cavity (3). A top block (10) is installed on the door plate (2). An inner tube channel is provided between the top block (10) and the pipeline pressure block (9). Three linear motors are installed at the lower part of the trolley (1). The linear motors are connected to the first drive rod of the switching component (8) through a pull rope (11).

2. The internal tubing installation structure of a high-pressure injector according to claim 1, characterized in that, Multiple guide wheels (12) are rotatably installed in the front cavity (3), and the pull rope (11) is wound around the guide wheels (12) and connected to the first drive rod of the switch component (8).

3. The internal tubing installation structure of a high-pressure injector according to claim 1, characterized in that, Both the top block (10) and the door panel (2) are transparent.

4. The internal tubing installation structure of a high-pressure injector according to claim 1, characterized in that, The front cavity (3) has three through slots (13) that correspond one-to-one with the three inner tubes (6); wherein, the interface of the four-way connector (5) near the through slot (13), the through slot (13) in the middle, and the inner tube channel corresponding to the inner tube connected to the interface are located on the same central axis; the four-way connector (5) is provided with a pipe clamp (15) on one side of the connector on both sides of the central axis.

5. The internal tubing installation structure of a high-pressure injector according to claim 1, characterized in that, A roller pump (14) is installed on the internal partition (4) below the four-way pipe switching valve. An input channel (16) is provided on one side of the internal partition (4) between the roller pump (14) and the four-way connector (5), and an output channel (17) is provided on the other side. The manifold (7) is installed in the roller pump (14) through the input channel (16) and outputs from the output channel (17).

6. The internal tubing installation structure of a high-pressure injector according to claim 5, characterized in that, A pipe clamp (18) is installed in the input channel (16), and a guide wheel (19) is provided at the connection between the input channel (16) and the roller pump (14).

7. The internal tubing installation structure of a high-pressure injector according to claim 6, characterized in that, The input channel (16) has rounded corners on the side port near the four-way connector (5).

8. The internal tubing installation structure of a high-pressure injector according to claim 5, characterized in that, The output channel (17) has a rounded corner structure on the side port near the four-way connector (5).

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