High-pressure injection needle cylinder type iodine contrast agent

Abstract

The utility model discloses a high-pressure injection needle cylinder type iodine contrast agent, which belongs to the technical field of medical instruments and comprises a high-pressure injection needle, the high-pressure injection needle specifically comprises a needle cylinder, a needle head fixed at the top of the needle cylinder and a catheter fixed at the end, far away from the needle cylinder, of the needle head, and a piston slides in the high-pressure injection needle cylinder. The device is characterized in that an iodine contrast agent is packaged in the needle cylinder, iodine contrast liquid is arranged between the piston and the needle cylinder, the iodine contrast liquid and the needle cylinder are inserted into an injection machine for integral use, the end, facing the needle cylinder, of the needle head is slidably connected with a plurality of wedge-shaped clamping blocks, and the end, away from the needle head, of the catheter is rotatably connected with a packaging plate; according to the high-pressure injection needle cylinder type iodine contrast agent, the needle cylinder is directly adopted as a containing shell of the iodine contrast agent, and the high-pressure injection needle cylinder filled with the iodine contrast agent is mounted on an injection machine for use, so that the high-pressure injection needle cylinder does not need to be mounted firstly, and then the iodine contrast agent does not need to be sucked into the high-pressure injection needle cylinder for use.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a high-pressure injection syringe type iodine contrast agent. Background Art

[0002] High-pressure syringes for injecting iodine contrast agents are widely used in enhanced CT examinations. In traditional techniques, the high-pressure syringe is installed in the installation tube on the injection machine, and then the liquid medicine is sucked in with a plastic needle. The amount to be injected is adjusted, and then a hose is connected to the high-pressure syringe for injection. However, there is a risk of contamination during the process of sucking the liquid medicine, and the suction takes a certain amount of time, which increases the time cost. Utility Model Content

[0003] The utility model aims to provide a high-pressure injection syringe type iodine contrast agent, which directly uses a syringe as a housing for the iodine contrast agent, and installs the high-pressure injection syringe filled with iodine contrast agent on an injection machine for use, without the need to first install the high-pressure injection syringe and then suck the iodine contrast agent into the high-pressure injection syringe for use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure injection syringe type iodine contrast medium high-pressure injection needle, the high-pressure injection needle specifically comprises a syringe, a needle head fixed at the top of the syringe and a catheter fixed at the end of the needle head away from the syringe, a piston is slidably arranged inside the high-pressure injection syringe, and the utility model is characterized in that iodine contrast medium is encapsulated inside the syringe, the iodine contrast liquid is placed between the piston and the syringe, the iodine contrast liquid and the syringe are plugged into an injection machine for integral use, the needle head is connected to a plurality of wedge-shaped clamping blocks for sliding toward the syringe end, and the catheter is connected to a packaging plate for rotation away from the needle head end.

[0005] Furthermore, the needle is provided with a T-slot at the end facing the syringe, and a plurality of T-slots are provided along the circumference of the needle, and a wedge-shaped clamping block is slidably connected inside each T-slot.

[0006] Furthermore, a fixing rod is fixed to the inner wall of the T-slot, a sliding rod is slidably connected inside the fixing rod, the sliding rod is fixed to the side of the wedge-shaped clamping block away from the fixing rod end, a spring seat is fixed to the other side of the wedge-shaped clamping block, two spring seats are provided, the other spring seat is fixed on the inner wall of the T-slot, and a spring is fixed between the two spring seats.

[0007] Furthermore, the catheter is provided with a groove away from the needle end, the packaging plate is rotatably connected inside the groove, a vertical groove connected to the groove is provided near the outer wall of the catheter, and a cross bar is fixed inside the groove.

[0008] Furthermore, there are two packaging plates, each of which is semicircular. When the two packaging plates are closed, they completely cover the upper end of the conduit. A connecting block is fixed to each packaging plate near the groove end, and the connecting block is rotatably connected to the cross bar.

[0009] Furthermore, a plurality of protrusions are fixed on the side surface of the connection block.

[0010] The beneficial effects of the utility model are:

[0011] 1. Set up a set of high-pressure injection syringes, combine the high-pressure injection syringes with iodine contrast agents and design them as a set for use. Directly use the syringe as the outer shell for containing the iodine contrast agent, install the high-pressure injection syringe filled with iodine contrast agent on the injection machine for use, and then there is no need to install the high-pressure injection syringe first and then suck the iodine contrast agent into the high-pressure injection syringe for use.

[0012] 2. A movable wedge-shaped clamp block is provided, and a spring is provided to make the wedge-shaped clamp block contact the outer wall of the mounting cylinder, thereby improving the installation stability of the syringe.

[0013] 3. A packaging plate is provided which rotates and covers the catheter. With the insertion of the external hose, the packaging plate can automatically abut against the inner wall of the hose to increase the plugging stability of the hose. At the same time, when the hose is not inserted or pulled out, the packaging plate can automatically cover the catheter to seal the catheter, thereby preventing the iodine contrast solution inside the syringe from flowing out and facilitating the transportation of the high-pressure injection syringe-type iodine contrast agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a high-pressure injection syringe type iodine contrast agent provided by the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of a high-pressure injection syringe type iodine contrast agent provided by the utility model;

[0016] Figure 3 The utility model provides a high-pressure injection syringe type iodine contrast agent Figure 1 The enlarged schematic diagram at A in the middle;

[0017] Figure 4 The utility model provides a high-pressure injection syringe type iodine contrast agent Figure 1 Enlarged schematic diagram of point B in the middle.

[0018] In the figure: 1, syringe; 2, needle; 3, catheter; 4, wedge-shaped clamp; 5, packaging plate; 6, T-slot; 7, fixing rod; 8, sliding rod; 9, spring seat; 10, spring; 11, groove; 12, vertical groove; 13, cross bar; 14, connecting block; 15, protrusion. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] Please also refer to Figures 1 to 3 The high-pressure injection syringe type iodine contrast agent of the embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 As shown, the high-pressure injection syringe type iodine contrast agent includes a high-pressure injection needle, which specifically includes a syringe 1, a needle 2 fixed on the top of the syringe 1 and a catheter 3 fixed at the end of the needle 2 away from the syringe 1, and a piston is slidably provided inside the high-pressure injection syringe 1. It is characterized in that an iodine contrast agent is encapsulated inside the syringe 1, and the iodine contrast liquid is placed between the piston and the syringe 1. The iodine contrast liquid and the syringe 1 are plugged into an injection machine for integral use, and a plurality of wedge-shaped clamping blocks 4 are slidably connected to the end of the needle 2 toward the syringe 1, and a packaging plate 5 is rotatably connected to the end of the catheter 3 away from the needle 2.

[0022] In this embodiment, the high-pressure injection syringe 1 and the iodine contrast agent are designed to be used as a set. The syringe 1 is directly used as the outer shell for containing the iodine contrast agent. The high-pressure injection syringe 1 filled with the iodine contrast agent is installed on the injection machine for use, and there is no need to first install the high-pressure injection syringe 1 and then suck the iodine contrast agent into the high-pressure injection syringe 1 for use.

[0023] As an implementation mode, a T-slot 6 is provided at the end of the needle 2 facing the syringe 1, and a plurality of T-slots 6 are provided along the circumference of the needle 2, and a wedge-shaped clamp block 4 is slidably connected inside each T-slot 6.

[0024] A fixing rod 7 is fixed to the inner wall of the T-slot 6, and a sliding rod 8 is slidably connected inside the fixing rod 7. The end of the sliding rod 8 away from the fixing rod 7 is fixed to the side of the wedge-shaped clamping block 4, and a spring 10 seat 9 is fixed to the other side of the wedge-shaped clamping block 4. There are two spring 10 seats 9, and the other spring 10 seat 9 is fixed on the inner wall of the T-slot 6. A spring 10 is fixed between the two spring 10 seats 9.

[0025] The above-mentioned wedge-shaped clamp 4 increases the installation stability between the syringe 1 and the injection machine. Taking the existing double-barrel high-pressure injection machine as an example, when the syringe 1 is inserted into the mounting barrel of the injection machine, the wedge-shaped clamp 4 is abutted by the outer wall of the mounting barrel, thereby driving the wedge-shaped clamp 4 to move toward the outside of the needle 2. The wedge-shaped clamp 4 drives the sliding rod 8 to slide toward the inside of the fixed rod 7. At the same time, the spring 10 is stretched. After the syringe 1 is installed, due to the rebound potential energy of the spring 10, the wedge-shaped clamp 4 abuts against the outer wall of the mounting barrel, thereby improving the installation stability.

[0026] As an implementation mode, a groove 11 is provided at the end of the catheter 3 away from the needle 2, and the packaging plate 5 is rotatably connected inside the groove 11. A vertical groove 12 connected to the groove 11 is provided near the outer wall of the catheter 3, and a cross bar 13 is fixed inside the groove 11.

[0027] There are two packaging plates 5, each of which is semicircular. When the two packaging plates 5 are closed, they completely cover the upper end of the catheter 3. A connecting block 14 is fixed to the end of each packaging plate 5 near the groove 11. The connecting block 14 is rotatably connected to the cross bar 13, and a plurality of protrusions 15 are fixed to the side of the connecting block 14.

[0028] When the connecting block 14 is in a state parallel to the groove 11, the end of the connecting block 14 away from the packaging plate 5 exceeds the edge of the conduit 3, and the width of the groove 11 is greater than the width of the vertical groove 12, and the width of the vertical groove 12 is less than the sum of the widths of the protrusion and the connecting block 14, ensuring that the connecting block 14 and the protrusion can be snapped into the inside of the vertical groove 12. At the same time, when the connecting block 14 is parallel to the groove 11, due to the resistance of the protrusion, the connecting block 14 will not rotate without external force; the protrusion 15 is made of rubber material and has good elasticity.

[0029] When injecting iodine contrast medium, an external hose is required for injection, and one end of the hose is plugged into the outside of the catheter 3. At this time, with the plugging of the hose, the end of the hose first hits the connecting block 14 on the packaging plate 5. With the continued insertion of the hose, the connecting block 14 rotates continuously, driving the packaging plate 5 to rotate at the same time. After the connecting block 14 is transferred into the vertical groove 12, the convex point 15 on the side of the connecting block 14 hits the inner wall of the vertical groove 12. At this time, the two packaging plates 5 are rotated and opened, and the connecting block 14 is away from the packaging plate 5 end and hits the hose, so that the hose can be fixed, and the catheter 3 is opened at the same time, and the iodine contrast medium inside the syringe 1 can be derived for injection; after the injection is completed, the hose is pulled out, driving the connecting block 14 to rotate and reset again, and the connecting block 14 is reset to the groove 11. At this time, the connecting block 14 and the groove 11 are in a parallel state, and then the packaging plate 5 is closed again to cover the upper end of the catheter 3, to prevent the iodine contrast medium inside the syringe 1 from flowing out, and also facilitate the transportation of the iodine contrast medium of the high-pressure injection syringe 1.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure injection syringe type iodine contrast agent, comprising a high-pressure injection needle, the high-pressure injection needle specifically comprising a syringe (1), a needle (2) fixed at the top of the syringe (1) and a catheter (3) fixed at the end of the needle (2) away from the syringe (1), a piston sliding inside the high-pressure injection syringe (1), characterized in that: The syringe (1) contains an iodine contrast agent, which is placed between the piston and the syringe (1). The iodine contrast agent and the syringe (1) are plugged into an injection machine for integral use. The needle (2) is slidably connected to a plurality of wedge-shaped clamping blocks (4) at the end facing the syringe (1), and the catheter (3) is rotatably connected to a packaging plate (5) at the end away from the needle (2).

2. The high-pressure injection syringe (1) type iodine contrast agent according to claim 1, characterized in that: The needle (2) is provided with a T-shaped groove (6) at the end facing the syringe (1), and a plurality of T-shaped grooves (6) are provided along the circumferential direction of the needle (2), and each T-shaped groove (6) is slidably connected to a wedge-shaped clamping block (4).

3. A high-pressure injection syringe (1) type iodine contrast agent according to claim 2, characterized in that: A fixing rod (7) is fixed to the inner wall of the T-shaped slot (6), a sliding rod (8) is slidably connected inside the fixing rod (7), the sliding rod (8) is fixed to the side of the wedge-shaped clamp (4) at the end away from the fixing rod (7), a spring seat (9) is fixed to the other side of the wedge-shaped clamp (4), two spring seats (9) are provided, the other spring seat (9) is fixed to the inner wall of the T-shaped slot (6), and a spring (10) is fixed between the two spring seats (9).

4. The high-pressure injection syringe (1) type iodine contrast agent according to claim 1, characterized in that: The catheter (3) is provided with a groove (11) at the end away from the needle (2), the interior of the groove (11) is rotatably connected to the packaging plate (5), a vertical groove (12) connected to the groove (11) is provided near the outer wall of the catheter (3), and a cross bar (13) is fixed inside the groove (11).

5. The high-pressure injection syringe (1) type iodine contrast agent according to claim 4, characterized in that: Two packaging plates (5) are provided, each packaging plate (5) is semicircular, and when the two packaging plates (5) are closed, they completely cover the upper end of the conduit (3); a connecting block (14) is fixed to the end of each packaging plate (5) close to the groove (11), and the connecting block (14) is rotatably connected to the cross bar (13).

6. A high-pressure injection syringe (1) type iodine contrast agent according to claim 5, characterized in that: A plurality of protrusions (15) are fixed on the side surface of the connection block (14).

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