CN213554339U

CN213554339U - Contrast agent injection equipment for interventional department

Info

Publication number: CN213554339U
Application number: CN202022200171.2U
Authority: CN
Inventors: 张清; 蔡红莉
Original assignee: Nantong First Peoples Hospital
Current assignee: Nantong First Peoples Hospital
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-29
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a contrast medium injection equipment that intervention branch of academic or vocational study was used, including base and check valve, top one side of base is fixed with the syringe, the injection groove has been seted up to the inside of syringe, the one end bottom intercommunication that the syringe is close to the injection groove has the drain pipe, wherein, the one end top intercommunication that the syringe is close to the drain pipe has the feed liquor pipe, the inside at the feed liquor pipe is fixed to the check valve, the one end middle part that the drain pipe was kept away from to the syringe runs through there is the push rod groove, the inside in injection groove is provided with the piston, one side that the piston is close to the push rod groove is fixed with the push rod. The utility model discloses a set up motor and ejector pad, the motor drives the lead screw and rotates, and the lead screw passes through the external screw thread and drives the slider and remove, and the slider drives the ejector pad compression, and the ejector pad passes through the push rod and drives the piston and remove, drives the piston uniform velocity through the motor and removes, inside being convenient for make the equal fast injection of contrast medium to the blood vessel, avoids artificial factor to cause the influence to the injection of contrast medium.

Description

Contrast agent injection equipment for interventional department

Technical Field

The utility model relates to a contrast medium technical field specifically is a contrast medium injection equipment that intervention branch of academic or vocational study was used.

Background

Contrast agents are chemicals that are injected into human tissue or organs to enhance the visualization of the images, and these products are either higher or lower in density than the surrounding tissue, and the contrast is displayed by some instrument, and when injected, a contrast agent injection device is required.

Although the existing contrast agent injection devices are very large in variety and quantity, the existing contrast agent injection devices still have certain problems and bring certain inconvenience to the use of the contrast agent injection devices.

When the existing contrast agent injection equipment is used, the contrast agent is mostly injected into a blood vessel through manual control, but the contrast agent cannot be injected at a uniform speed easily due to factor influence, certain pressure is easily caused on the blood vessel, and the contrast agent injection equipment is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a contrast medium of interventional department usefulness injects equipment has solved current contrast medium and has injected equipment when using, mostly injects intravascular through manual control contrast medium, nevertheless receives easily because the factor influences, the unable even fast injection of contrast medium, causes certain pressure, the problem of inconvenient use to the blood vessel easily.

In order to achieve the above object, the utility model provides a following technical scheme: a contrast agent injection device for an interventional department comprises a base and a one-way valve, wherein an injector is fixed on one side of the top of the base, an injection groove is formed in the injector, a liquid outlet pipe is communicated with the bottom of one end, close to the injection groove, of the injector,

the top of one end, close to the liquid outlet pipe, of the injector is communicated with a liquid inlet pipe, the one-way valve is fixed inside the liquid inlet pipe, a push rod groove penetrates through the middle of one end, far away from the liquid outlet pipe, of the injector, a piston is arranged inside the injection groove, a push rod is fixed on one side, close to the push rod groove, of the piston, and scale marks are marked on the outer side of the push rod;

the push rod is fixed with the ejector pad in the one end of keeping away from the syringe, the base is close to the bottom of ejector pad and has seted up the spout, the ejector pad is close to one side of spout and is fixed with the slider, the lead screw has been run through to the inside of spout, the base is kept away from a side end of syringe and is fixed with the motor, motor and lead screw fixed connection.

Preferably, a spring groove is formed in the check valve, a liquid inlet is communicated with the top of the check valve close to the spring groove, a liquid outlet is communicated with the bottom of the check valve close to the spring groove, a spring is fixed to the bottom of the spring groove, and a valve ball is fixed to one end, close to the liquid inlet, of the spring.

Preferably, the outer diameter of the valve ball is larger than the inner diameter of the liquid inlet, the outer diameter of the valve ball is smaller than the inner diameter of the spring groove, and the valve ball and the one-way valve are elastically connected through the spring.

Preferably, the piston is made of rubber material, and the outer diameter of the piston is equal to the inner diameter of the injection groove.

Preferably, the scale lines at the end of the push rod and the injector are expressed as the volume of the injection groove at the left side of the piston.

Preferably, the sliding groove and the sliding block are T-shaped, the sliding groove and the sliding block form a sliding structure, and the sliding block and the screw rod form a threaded structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up motor and ejector pad, the motor drives the lead screw and rotates, and the lead screw passes through the external screw thread and drives the slider and remove, and the slider drives the ejector pad compression, and the ejector pad passes through the push rod and drives the piston and remove, drives the piston uniform velocity through the motor and removes, inside being convenient for make the equal fast injection of contrast medium to the blood vessel, avoids artificial factor to cause the influence to the injection of contrast medium.

2. The utility model discloses a check valve that sets up carries out the sealed back to the drain pipe, makes the feed liquor union coupling transfer line, later makes the piston remove to the right side, and piston left side injection groove internal gas pressure reduces, and atmospheric pressure drives the valve ball and keeps away from the inlet, makes the contrast medium enter into the injection groove through the check valve inside, and when the piston stopped to remove, the spring drives the valve ball and supports the inlet, seals the inlet, avoids the contrast medium to take place to flow backwards.

3. The utility model discloses a scale mark that sets up, the scale mark of push rod and syringe tip department show for the volume of piston left side injection groove, when the push rod drove the piston and removes, and piston control contrast medium gets into or shifts out the inside of injection groove, through the scale mark of observing push rod and syringe tip department, the total amount of understanding the contrast medium in the piston left side injection groove that can be accurate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic side view of the base of the present invention.

In the figure: 1. a base; 2. an injector; 3. an injection tank; 4. a liquid outlet pipe; 5. a liquid inlet pipe; 6. a one-way valve; 601. a spring slot; 602. a liquid inlet; 603. a liquid outlet; 604. a spring; 605. a valve ball; 7. a push rod groove; 8. a piston; 9. a push rod; 10. scale lines; 11. a push block; 12. a chute; 13. a slider; 14. a screw rod; 15. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a contrast agent injection device for an interventional department comprises a base 1, an injector 2, an injection groove 3, a liquid outlet pipe 4, a liquid inlet pipe 5, a one-way valve 6, a push rod groove 7, a piston 8, a push rod 9, scale marks 10, a push block 11, a sliding groove 12, a sliding block 13, a screw rod 14 and a motor 15, wherein the injector 2 is fixed on one side of the top of the base 1, the injection groove 3 is formed in the injector 2, the liquid outlet pipe 4 is communicated with the bottom of one end, close to the injection groove 3, of the injector 2, and the liquid outlet pipe 4 is communicated with the bottom of the other end,

the top of one end of the injector 2 close to the liquid outlet pipe 4 is communicated with a liquid inlet pipe 5, the check valve 6 is fixed inside the liquid inlet pipe 5, the inside of the check valve 6 is provided with a spring groove 601, the top of the check valve 6 close to the spring groove 601 is communicated with a liquid inlet 602, the bottom of the check valve 6 close to the spring groove 601 is communicated with a liquid outlet 603, the bottom of the spring groove 601 is fixed with a spring 604, one end of the spring 604 close to the liquid inlet 602 is fixed with a valve ball 605, the outer diameter of the valve ball 605 is larger than the inner diameter of the liquid inlet 602, the outer diameter of the valve ball 605 is smaller than the inner diameter of the spring groove 601, the valve ball 605 is elastically connected with the check valve 6 through the spring 604, after the liquid outlet pipe 4 is sealed, the liquid inlet pipe 5 is connected with a liquid conveying pipe, then the piston 8 moves towards the right side, the pressure in the injection groove 3 at the left side, the contrast agent enters the injection groove 3 through the one-way valve 6, when the piston 8 stops moving, the spring 604 drives the valve ball 605 to abut against the liquid inlet 602 to seal the liquid inlet 602 to prevent the contrast agent from flowing backwards, the middle part of one end of the injector 2, which is far away from the liquid outlet pipe 4, penetrates through the push rod groove 7, the piston 8 is arranged inside the injection groove 3, the piston 8 is made of rubber material, the outer diameter of the piston 8 is equal to the inner diameter of the injection groove 3, the outer wall of the piston 8 is tightly connected with the inner wall of the injection groove 3, when the piston 8 moves, the contrast agent can be controlled to enter or move out of the injection groove 3, the push rod 9 is fixed on one side of the piston 8, which is close to the push rod groove 7, the scale lines 10 at the end parts of the push rod 9 and the injector 2 are represented as the volume of the injection groove 3 on the left side of the piston 8, when the push rod 9 drives the piston 8, the total amount of the contrast medium in the injection groove 3 on the left side of the piston 8 can be accurately known by observing the push rod 9 and the scale marks 10 at the end part of the injector 2, and the scale marks 10 are carved on the outer side of the push rod 9;

the one end that syringe 2 was kept away from to push rod 9 is fixed with ejector pad 11, base 1 has been close to the bottom of ejector pad 11 and has been seted up spout 12, spout 12 is T shape with slider 13, and spout 12 constitutes sliding construction with slider 13 to slider 13 constitutes the helicitic texture, and slider 13 drives lead screw 14 and rotates, and lead screw 14 drives slider 13 through the external screw thread and moves, and slider 13 drives ejector pad 11 compression, and ejector pad 11 drives piston 8 through push rod 9 and moves, drives piston 8 uniform motion through motor 15, is convenient for make the even fast injection of contrast medium inside the blood vessel, one side that ejector pad 11 is close to spout 12 is fixed with slider 13, lead screw 14 has been run through to the inside of spout 12, base 1 is kept away from one side end of syringe 2 and is fixed with motor 15, motor 15 and lead screw 14 fixed connection.

The working principle is as follows: when the contrast agent injecting device for the interventional department is used, firstly, after the liquid outlet pipe 4 is sealed, the liquid inlet pipe 5 is connected with a liquid conveying pipe, then the piston 8 moves towards the right side, the air pressure in the injection groove 3 at the left side of the piston 8 is reduced, the air pressure drives the valve ball 605 to be far away from the liquid inlet 602, the contrast agent enters the injection groove 3 through the one-way valve 6, when the piston 8 stops moving, the spring 604 drives the valve ball 605 to abut against the liquid inlet 602, sealing the liquid inlet 602 to avoid the contrast agent from flowing backwards, connecting the injection needle with the liquid outlet pipe 4 to insert the injection needle into the blood vessel, driving the screw rod 14 to rotate by the motor 15, driving the slide block 13 to move by the screw rod 14 through the external thread, driving the push block 11 to compress by the slide block 13, driving the piston 8 to move by the push block 11 through the push rod 9, the motor 15 drives the piston 8 to move at a constant speed, so that the contrast agent can be injected into the blood vessel at a constant speed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A contrast media bolus device for interventional procedures, comprising a base (1) and a one-way valve (6), characterized in that: an injector (2) is fixed on one side of the top of the base (1), an injection groove (3) is formed in the injector (2), a liquid outlet pipe (4) is communicated with the bottom of one end, close to the injection groove (3), of the injector (2),

the top of one end, close to the liquid outlet pipe (4), of the injector (2) is communicated with a liquid inlet pipe (5), the one-way valve (6) is fixed inside the liquid inlet pipe (5), a push rod groove (7) penetrates through the middle of one end, far away from the liquid outlet pipe (4), of the injector (2), a piston (8) is arranged inside the injection groove (3), a push rod (9) is fixed on one side, close to the push rod groove (7), of the piston (8), and scale marks (10) are carved on the outer side of the push rod (9);

one end of the push rod (9) far away from the injector (2) is fixed with a push block (11), the bottom of the base (1) close to the push block (11) is provided with a sliding groove (12), one side of the push block (11) close to the sliding groove (12) is fixed with a sliding block (13), a screw rod (14) penetrates through the inside of the sliding groove (12), one side end of the base (1) far away from the injector (2) is fixed with a motor (15), and the motor (15) is fixedly connected with the screw rod (14).

2. The interventional contrast media bolus device of claim 1, wherein: check valve (6) are including spring groove (601), inlet (602), liquid outlet (603), spring (604) and valve ball (605), spring groove (601) have been seted up to the inside of check valve (6), the top intercommunication that check valve (6) are close to spring groove (601) has inlet (602), the bottom intercommunication that check valve (6) are close to spring groove (601) has liquid outlet (603), the bottom of spring groove (601) is fixed with spring (604), the one end that spring (604) are close to inlet (602) is fixed with valve ball (605).

3. The interventional contrast media bolus device of claim 2, wherein: the outer diameter of the valve ball (605) is larger than the inner diameter of the liquid inlet (602), the outer diameter of the valve ball (605) is smaller than the inner diameter of the spring groove (601), and the valve ball (605) is elastically connected with the one-way valve (6) through the spring (604).

4. The interventional contrast media bolus device of claim 1, wherein: the piston (8) is made of rubber materials, and the outer diameter of the piston (8) is equal to the inner diameter of the injection groove (3).

5. The interventional contrast media bolus device of claim 1, wherein: the volume of the injection groove (3) on the left side of the piston (8) is represented by the scale marks (10) at the end parts of the push rod (9) and the injector (2).

6. The interventional contrast media bolus device of claim 1, wherein: the sliding groove (12) and the sliding block (13) are T-shaped, the sliding groove (12) and the sliding block (13) form a sliding structure, and the sliding block (13) and the screw rod (14) form a thread structure.