CN218900452U

CN218900452U - Injection device for cardiovascular interventional therapy

Info

Publication number: CN218900452U
Application number: CN202222216549.7U
Authority: CN
Inventors: 梁胜
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-04-25
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses an injection device for cardiovascular interventional therapy, which belongs to the technical field of injection devices and comprises a needle cylinder, wherein the bottom end of the needle cylinder is fixedly connected with the needle tube, an inserting tube is inserted in the needle tube, the inner side surface of the inserting tube is fixedly connected with a puncture needle, the outer surface of the needle tube is fixedly connected with a positioning plate near a tube opening, the edge of the positioning plate is provided with a notch, the outer side surface of the inserting tube is fixedly connected with a butt joint disc near the puncture needle, the bottom end of the butt joint disc is provided with a guide hole, the outer side surface of the puncture needle is sleeved with a positioning ring, the top end of the positioning ring is fixedly connected with a measuring rod, and the top end of the measuring rod penetrates through the guide hole and the notch. The utility model can accurately adjust the use length of the puncture needle by arranging the positioning ring and the measuring rod, thereby controlling the puncture depth of the puncture needle.

Description

Injection device for cardiovascular interventional therapy

Technical Field

The utility model relates to the technical field of injection devices, in particular to an injection device for cardiovascular interventional therapy.

Background

Cardiovascular diseases, also called circulatory diseases, require to be punctured into blood vessels by a common injection device through a puncture needle, on the one hand, medical staff is inconvenient to control the puncture depth of the puncture needle in the process of puncturing the blood vessels by the puncture needle, on the other hand, after medium is injected by pushing, the injector needs to be detached and then a guide wire is inserted, so that a lot of blood flows out of the puncture point, cross infection is easy to cause, the working difficulty of the medical staff is increased, and the injection device for cardiovascular interventional therapy is proposed to solve the problems.

Disclosure of Invention

The utility model aims to solve the xxx problem in the prior art and provides an injection device for cardiovascular interventional therapy.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a be used for cardiovascular interventional therapy injection device, includes the cylinder, the bottom fixedly connected with needle tubing of needle tubing, the inside grafting of needle tubing has the grafting pipe, the medial surface fixedly connected with pjncture needle of grafting pipe, the surface of needle tubing is close to mouth of pipe department fixedly connected with locating plate, the breach has been seted up at the edge of locating plate, the lateral surface of grafting pipe is close to pjncture needle department fixedly connected with docking tray, the guiding hole has been seted up to the bottom of docking tray, the lateral surface cover of pjncture needle is equipped with the holding ring, the top fixedly connected with measuring stick of holding ring, guiding hole and breach are run through on the top of measuring stick.

Preferably, the outer surface of the measuring rod is provided with scales, and the top end of the measuring rod is rotationally connected with a rotating block.

Preferably, a threaded through hole is formed in the top end of the rotating block, and an installation screw rod is connected in the threaded through hole in a threaded mode.

Preferably, a thread groove is formed in the end face of the top end of the positioning plate, and the mounting screw is in threaded connection with the thread groove.

Preferably, an adhesive layer is arranged at the bottom end of the positioning ring, and a sponge layer is arranged on the surface of the adhesive layer close to the puncture needle.

Preferably, a piston is arranged in the needle cylinder, a push rod is fixedly connected to the top end of the piston, a pressing block is fixedly connected to the top end of the push rod, and an auxiliary block is fixedly connected to the outer side surface of the needle cylinder close to the top end.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model realizes the stable connection function of the puncture needle and the needle tube by arranging the butt joint disc, the rotating block and the mounting screw rod and utilizing the threaded connection of the mounting screw rod and the threaded groove at the top end of the positioning plate.

2. The utility model can accurately adjust the use length of the puncture needle by arranging the positioning ring and the measuring rod, thereby controlling the puncture depth of the puncture needle.

3. The utility model can ensure that the puncture needle stably punctures the skin when the puncture needle is separated from the needle tube by arranging the adhesive layer and the sponge layer, can avoid the outflow of blood at the puncture point by arranging the rubber plug at the pipe orifice of the insertion pipe, and can avoid the outflow of blood through the puncture needle and the insertion pipe and avoid cross infection.

Drawings

Fig. 1 is a schematic perspective view of an injection device for cardiovascular interventional therapy according to the present utility model;

fig. 2 is a schematic diagram of a second perspective structure of the injection device for cardiovascular interventional therapy according to the present utility model;

FIG. 3 is a schematic view showing the internal perspective structure of an injection device for cardiovascular interventional therapy according to the present utility model;

FIG. 4 is a schematic view of the internal plan structure of an injection device for cardiovascular interventional therapy according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A;

fig. 6 is a schematic view of a connection structure of a rubber stopper and an insertion tube.

In the figure: 1. a needle cylinder; 2. a piston; 3. a push rod; 4. pressing the blocks; 5. an auxiliary block; 6. a measuring rod; 7. a puncture needle; 8. an adhesive layer; 9. a positioning ring; 10. a connecting pipe is inserted; 11. a needle tube; 12. a butt joint disc; 13. a rotating block; 14. a positioning plate; 1401. a notch; 15. and (5) installing a screw.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-6, an injection device for cardiovascular interventional therapy comprises a needle cylinder 1, a needle tube 11 is fixedly connected to the bottom end of the needle cylinder 1, a plug tube 10 is plugged into the needle tube 11, a puncture needle 7 is fixedly connected to the inner side surface of the plug tube 10, a positioning plate 14 is fixedly connected to the outer surface of the needle tube 11 near a tube orifice, a notch 1401 is formed in the edge of the positioning plate 14, a butt joint disc 12 is fixedly connected to the outer side surface of the plug tube 10 near the puncture needle 7, a guide hole is formed in the bottom end of the butt joint disc 12, a positioning ring 9 is sleeved on the outer side surface of the puncture needle 7, a measuring rod 6 is fixedly connected to the top end of the positioning ring 9, and the top end of the measuring rod 6 penetrates through the guide hole and the notch 1401.

The surface of measuring stick 6 sets up the scale, and the top rotation of measuring stick 6 is connected with rotatory piece 13, and measuring stick 6 can help medical personnel to accurately adjust the length of use of pjncture needle 7, and rotatory piece 13 conveniently adjusts the position of installation screw rod 15.

The screw through hole has been seted up on the top of rotatory piece 13, and screw through hole internal thread is connected with installation screw 15, and the screw thread groove has been seted up to the top terminal surface of locating plate 14, installation screw 15 and screw thread groove threaded connection, installation screw 15 cooperation are to the screw thread groove on the top of flange 12, can realize inserting the stable connection of take over 10 and needle tubing 11, can realize the locate function of holding ring 9 simultaneously.

The bottom of holding ring 9 is provided with pastes layer 8, and the surface of pasting layer 8 is close to pjncture needle 7 department and sets up the sponge layer, can be when pjncture needle 7 and needle tubing 11 separation for pjncture needle 7 stable puncture is on the skin, can avoid the blood outflow of puncture point department through pasting layer 8 and sponge layer, through setting up the rubber buffer in the mouth of pipe department of pegging graft pipe 10, can avoid blood to flow through pjncture needle 7 and pegging graft pipe 10, avoids causing cross infection.

The inside of cylinder 1 is provided with piston 2, and the top fixedly connected with push rod 3 of piston 2, the top fixedly connected with of push rod 3 presses down piece 4, and the lateral surface department near the top of cylinder 1 is fixedly connected with auxiliary block 5, can pour into the injection medium into the human body.

When the puncture needle is used, the insertion tube 10 is inserted into the needle tube 11, at the moment, the measuring rod 6 and the mounting screw 15 penetrate through the notch 1401, the distance between the positioning ring 9 and the bottom end of the puncture needle 7 is controlled through the sliding positioning ring 9, the penetration depth of the puncture needle 7 into the skin is controlled, meanwhile, the actual use length of the puncture needle 7 can be accurately controlled under the action of the measuring rod 6, after the actual use length of the puncture needle 7 is adjusted, the rotating block 13 is rotated to align the mounting screw 15 with a thread groove, then the mounting screw 15 is rotated to enable the mounting screw 15 to be in threaded connection with the thread groove, the connection function of the mounting screw 15 and the positioning plate 14 is realized, and the rotating block 13 is in rotary connection with the measuring rod 6 due to the fact that the mounting screw 15 is in threaded connection with the rotating block 13, and the positioning ring 9 are fixedly connected with the measuring rod 6, so that the limiting function of the positioning ring 9 is realized, and the adjustment function of the use length of the puncture needle 7 is realized.

The medical staff uses the device to make the puncture needle 7 penetrate into the human body until the positioning ring 9 contacts with the human skin, so that the adhesive layer 8 is adhered to the human skin, and then the pressing block 4 is pushed, so that the push rod 3 drives the piston 2 to move downwards, and then the injection medium is injected into the human body.

After the injection medium is injected into the human body, the installation screw 15 is rotated again to be separated from the thread groove, and then the rotating block 13 is rotated to enable the installation screw 15 to be aligned with the notch 1401, and then the needle cylinder 1 is lifted up, so that the needle tube 11 can be separated from the insertion tube 10, and the function of separating the puncture needle 7 from the needle cylinder 1 is realized.

Under the effect of the adhesive layer 8 and the positioning ring 9, the puncture stability of the puncture needle 7 can be ensured, at the moment, the rubber plug is plugged into the plug tube 10, so that blood is prevented from flowing out through the puncture needle 7 and the plug tube 10, and meanwhile, under the effect of the sponge layer, the blood is prevented from flowing out through a puncture point to cause cross infection.

When the guide wire is ready, the rubber plug is removed, and the guide wire is inserted into a human body through the insertion tube 10 and the puncture needle 7.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Be used for cardiovascular interventional therapy injection device, including cylinder (1), its characterized in that, the bottom fixedly connected with needle tubing (11) of needle tubing (1), peg graft in the inside of needle tubing (11) has pegging graft pipe (10), the medial surface fixedly connected with pjncture needle (7) of pegging graft pipe (10), the surface of needle tubing (11) is close to mouth of pipe department fixedly connected with locating plate (14), breach (1401) have been seted up at the edge of locating plate (14), the lateral surface of pegging graft pipe (10) is close to pjncture needle (7) department fixedly connected with docking tray (12), the guiding hole has been seted up to the bottom of docking tray (12), the lateral surface cover of pjncture needle (7) is equipped with holding ring (9), the top fixedly connected with measuring stick (6) of holding ring (9), the top of measuring stick (6) runs through guiding hole and breach (1401).

2. The injection device for cardiovascular intervention according to claim 1, wherein: the outer surface of the measuring rod (6) is provided with scales, and the top end of the measuring rod (6) is rotationally connected with a rotating block (13).

3. The injection device for cardiovascular intervention according to claim 2, wherein: the top of the rotating block (13) is provided with a threaded through hole, and the threaded through hole is internally connected with a mounting screw rod (15) in a threaded manner.

4. An injection device for cardiovascular interventions according to claim 3, characterized in that: the top end face of the locating plate (14) is provided with a thread groove, and the mounting screw (15) is in threaded connection with the thread groove.

5. The injection device for cardiovascular intervention according to claim 1, wherein: the bottom of the positioning ring (9) is provided with an adhesive layer (8), and a sponge layer is arranged on the surface of the adhesive layer (8) close to the puncture needle (7).

6. The injection device for cardiovascular intervention according to claim 1, wherein: the novel needle cylinder is characterized in that a piston (2) is arranged in the needle cylinder (1), a push rod (3) is fixedly connected to the top end of the piston (2), a pressing block (4) is fixedly connected to the top end of the push rod (3), and an auxiliary block (5) is fixedly connected to the outer side face of the needle cylinder (1) close to the top end.