CN112691033A

CN112691033A - Nuclear medicine injection device

Info

Publication number: CN112691033A
Application number: CN202110013803.0A
Authority: CN
Inventors: 李毓斌; 张奇洲; 秦永德; 李肖红; 谢彬; 阿米娜·依布拉音; 赵晓佳; 刘立水; 巴雅
Original assignee: First Affiliated Hospital of Xinjiang Medical University
Current assignee: First Affiliated Hospital of Xinjiang Medical University
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-04-23

Abstract

The invention discloses a nuclear medicine injection device which comprises an injector, wherein a through hole is formed in the side wall of the injector, a pipeline is fixedly connected to one side of the through hole, a first valve is arranged on the pipeline, one end of the pipeline is fixedly communicated with a medicine storage cylinder, a second valve is arranged at the output end of the injector, a fixed plate is sleeved at one end of the injector in a threaded manner, a guide rod penetrates through the fixed plate in a sliding manner, a movable plate is fixedly connected to one end of the guide rod, a first through hole is formed in the surface of the movable plate, a rotary disc is rotatably connected to one side of the movable plate, a second through hole. This scheme can realize carrying out the mixture of more than two kinds of liquid medicines in same injection device, when not using injection device, because carousel and movable plate are the one end through guide bar and fixed plate threaded connection at the syringe, also be difficult for droing when even dropping ground carelessly to reduce the unrestrained possibility of liquid medicine from the syringe, be favorable to environmental protection and medical staff's health.

Description

Nuclear medicine injection device

Technical Field

The application relates to the technical field of medical instruments, in particular to a nuclear medicine injection device.

Background

Nuclear medicine is a new subject for diagnosing, treating and researching diseases by adopting nuclear technology, is one of main means of modern medicine, is one of main medical technical departments of hospitals, mainly develops nuclear medicine examination items, is one of effective means for assisting clinical departments in correctly diagnosing diseases, has a batch of advanced devices such as SPECT (single photon emission computed tomography) and thyroid function testers, has certain research function on imaging diagnosis of thyroid diseases, tumors, coronary heart diseases, kidney diseases and the like and treatment of hyperthyroidism and bone metastasis cancers, and obtains good medical and social benefits.

Although most of the drugs used in nuclear medicine are radioactive, the injection devices such as syringes used for injecting nuclear medicine are not different from other medical departments; nuclear medicine often has radiation or other components which can harm human bodies, however, the existing medicine injection device often lacks reliable protection measures, although the existing syringe needle is provided with a protective sleeve, the syringe needle is generally not firm, the protective sleeve is easy to fall off when the syringe needle falls off the ground carelessly, the medicine is scattered due to bending damage of the needle, not only can the work of medical staff be adversely affected, but also the medicine used in nuclear medicine can cause pollution to the environment and even harm to human health; in the nuclear medicine experiment, a plurality of medicines are required to be mixed, the existing method is to inhale one medicine by using an injector and then inject the medicine into a bottle of the other medicine for mixing, and the medicine mixing method is complex in operation and low in efficiency.

Disclosure of Invention

It is a primary object of the present application to provide a nuclear medicine injection device to ameliorate the problems in the related art.

In order to achieve the above purpose, the application provides a nuclear medicine injection device, which comprises an injector, wherein a through hole is formed in the side wall of the injector, a pipeline is fixedly connected with one side of the through hole, a first valve is arranged on the pipeline, a medicine storage cylinder is fixedly communicated with one end of the pipeline, the medicine storage cylinder is fixedly connected with the injector, the output end of the injector is provided with a second valve, a fixed plate is sleeved on one end of the injector through threads, a guide rod is slidably penetrated on the fixed plate, a movable plate is fixedly connected with one end of the guide rod, a limiting plate is fixedly connected with the other end of the guide rod, one side of the limiting plate is attached to the fixed plate, a first through hole is formed in the surface of the movable plate, the first through hole is opposite to the output end of the injector, and a turntable is rotatably, the turntable is in clearance fit with the movable plate, a second through hole is formed in the surface of the turntable and is opposite to the first through hole, and a spring is fixedly welded between the fixed plate and the movable plate.

In an embodiment of the present invention, the injector includes a needle, a needle tube, a first piston, a first pull rod, and a first push plate, the needle is connected to an output end of the needle tube by a screw thread, the first piston slides along an inner sidewall of the needle tube, one end of the first pull rod is fixedly connected to the first piston, and the other end of the first pull rod is fixedly connected to the first push plate.

In one embodiment of the invention, one end of the needle tube is fixedly connected with a push block, the side wall of the push block is provided with a rough surface, two push blocks are arranged, and the two push blocks are symmetrical to each other.

In one embodiment of the invention, the surface of the needle tube is provided with a plurality of scale marks which are distributed at equal intervals.

In an embodiment of the present invention, the drug storage cartridge includes a cylindrical body, a second piston, a second pull rod and a second push plate, the cylindrical body is a transparent cylindrical body, the cylindrical body is fixedly connected to a sidewall of the injector, the second piston slides along an inner sidewall of the cylindrical body, one end of the second pull rod is fixedly connected to the second piston, and the other end of the second pull rod is fixedly connected to the second push plate.

In one embodiment of the invention, the surface of the guide rods is provided with a smooth surface, and four guide rods are arranged and evenly distributed along the fixing plate.

In an embodiment of the present invention, the moving plate is a circular moving plate, an outer protrusion is disposed on a peripheral side surface of the moving plate, and a blind hole is disposed on one side of the moving plate.

In one embodiment of the invention, an L-shaped block is fixedly welded to one side of the turntable, and the L-shaped block slides along the outer convex part.

In an embodiment of the present invention, a protrusion is disposed on a side wall of the turntable, and the protrusion is engaged with the blind hole.

In an embodiment of the invention, a sleeve is fixedly welded to one side of the second through hole, and the sleeve is matched with the first through hole

Compared with the prior art, the beneficial effects of this application are: when the nuclear medicine injection device with the design is used, firstly, the pull rod of the medicine storage cylinder is pulled outwards to reserve a space for the medicine storage cylinder, the valve on the side wall of the injector is closed, then the rotary disc is twisted by hand to enable the through hole on the rotary disc to be communicated with the through hole on the movable plate, then the needle head of the injector is opposite to the opening of the medicine bottle containing medicine liquid, the injector is pushed to enable the needle head of the injector to extend into the medicine bottle after extending out of the two through holes, then the pull rod of the injector is pulled to take medicine for the first time, after the first medicine taking is completed, the movable plate is reset under the action force of the spring on one side of the movable plate, the needle head of the injector does not extend out of the rotary disc and the movable plate, the rotary disc is twisted by hand to enable the through hole on the rotary disc to be not communicated with the through hole on the, the liquid medicine in the needle tube of the injector flows into the medicine storage cylinder through the through hole and the pipeline on the side wall of the injector, then the valve on the side wall of the injector is closed, the valve at the output end of the injector is opened, the second liquid medicine is extracted from other medicine bottles by repeating the steps, after the completion, the valve at the output end of the injector is closed, the valve on the side wall of the injector is opened, the second liquid medicine is pushed into the medicine storage cylinder, and then the two pull rods of the injector and the medicine storage cylinder are alternately pushed and pulled to mix the liquid medicine, so that the mixing of more than two liquid medicines is realized in the same medicine injection device, finally, when the medicine injection device is not used, the rotating disc is twisted by hand, the through hole on the rotating disc is not communicated with the through hole on the movable plate, so that the needle head of the injector can not extend out of the rotating disc and the movable plate, the injury of, even if the syringe falls off the ground carelessly, the syringe is not easy to fall off, thereby reducing the possibility that the liquid medicine is scattered from the syringe and being beneficial to protecting the environment and the health of medical staff.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention in front view when not in use;

FIG. 3 is a schematic view of the internal structure of the present invention in a front view;

FIG. 4 is an enlarged schematic view of the present invention at A of FIG. 2;

FIG. 5 is an enlarged view of the structure of FIG. 2 at B according to the present invention;

fig. 6 is an enlarged structural view at C of fig. 3 according to the present invention.

In the figure: 1. an injector; 2. a through hole; 3. a pipeline; 4. a first valve; 5. a cartridge; 6. a second valve; 7. a fixing plate; 8. a guide bar; 9. moving the plate; 10. a limiting plate; 11. a first through hole; 12. a turntable; 13. a second through hole; 14. a spring; 101. a needle head; 102. a needle tube; 103. a first piston; 104. a first pull rod; 105. a first push plate; 106. a push block; 107. scale lines; 121. an L-shaped block; 122. a bump; 131. a sleeve; 501. a barrel; 502. a second piston; 503. a second pull rod; 504. a second push plate; 901. an outer convex portion; 902. and (4) blind holes.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

Referring to fig. 1-6, the present invention provides a nuclear medicine injection device, including an injector 1, the injector 1 includes a needle 101, a needle tube 102, a first piston 103, a first pull rod 104 and a first push plate 105, the needle 101 is connected with an output end of the needle tube 102 in a threaded manner for extracting a medicine liquid from a medicine bottle, the first piston 103 slides along an inner sidewall of the needle tube 102, one end of the first pull rod 104 is fixedly connected with the first piston 103 for pushing and pulling the first piston 103, the other end of the first pull rod 104 is fixedly connected with the first push plate 105 for facilitating manual pushing and pulling of the first pull rod 104, one end of the needle tube 102 is fixedly connected with a push block 106, a sidewall of the push block 106 is configured as a rough surface, two push blocks 106 are provided, two push blocks 106 are symmetrical to each other, a plurality of scale marks 107 are provided on a surface of the needle tube 102 for cooperating with manual pushing and pulling of the first pull rod 104, the graduation marks 107 are distributed at equal intervals, and the needle tube 102 is transparent, so that the storage amount of the liquid medicine in the needle tube 102 can be observed conveniently through the graduation marks 107.

Through-hole 2 has been seted up to syringe 1's lateral wall, and the fixed welding in one side of through-hole 2 has pipeline 3, is provided with first valve 4 on the pipeline 3, and the fixed intercommunication of the one end of pipeline 3 has storage cartridge case 5, opens first valve 4, can make the liquid medicine in syringe 1 flow in through-hole 2 and pipeline 3 and store up cartridge case 5, store up cartridge case 5 and syringe 1 fixed connection.

The medicine storage cylinder 5 comprises a cylinder body 501, a second piston 502, a second pull rod 503 and a second push plate 504, the cylinder body 501 is a transparent cylinder body, the medicine storage condition in the cylinder body 501 is convenient to observe, the cylinder body 501 is fixedly connected with the side wall of the injector 1, the second piston 502 slides along the inner side wall of the cylinder body 501, one end of the second pull rod 503 is fixedly connected with the second piston 502, and the other end of the second pull rod 503 is fixedly connected with the second push plate 504.

The output end of the syringe 1 is provided with a second valve 6, and when the syringe 1 is used for extracting the liquid medicine from the medicine bottle, the first valve 4 is closed and the second valve 6 is opened.

One side of the injector 1 is in threaded sleeve connection with a fixing plate 7, so that the fixing plate 7 can be stably connected with the injector 1 and the fixing plate 7 is convenient to detach.

The fixed plate 7 is provided with guide rods 8 in a sliding penetrating mode, the surface of each guide rod 8 is set to be a smooth surface, the guide rods 8 convenient to slide penetrate through the fixed plate 7, the guide rods 8 are four, the four guide rods 8 are evenly distributed along the fixed plate 7, the needle head 101 of the injector 1 can not be exposed while stable guiding is achieved, the possibility that the needle head 101 accidentally injures a human body is reduced, the movable plate 9 is fixedly welded at one end of each guide rod 8, the moving direction of the movable plate 9 is used for guiding, the limiting plate 10 is fixedly welded at the other end of each guide rod 8, one side of the limiting plate 10 is attached to the side wall of the fixed plate 7, the sliding range of each guide rod 8 is used for limiting, the spring 14 is fixedly welded between the fixed plate 7 and the movable plate 9, elasticity is achieved between.

The surface of the moving plate 9 is provided with a first through hole 11, the first through hole 11 is opposite to the output end of the injector 1, one side of the moving plate 9 is rotatably connected with a rotary disc 12, the moving plate 9 is a circular moving plate, the rotary disc 12 can conveniently rotate on one side of the moving plate 9, the surface of the rotary disc 12 is provided with a second through hole 13, and the second through hole 13 is opposite to the first through hole 11 and is used for allowing a needle head 101 of the injector 1 to pass through when the device is used.

An outer convex portion 901 is arranged on the peripheral side surface of the moving plate 9, an L-shaped block 121 is fixedly welded on one side of the rotating disc 12, and the L-shaped block 121 slides along the outer convex portion 901, so that the rotating disc 12 cannot be separated from the moving plate 9 when rotating on one side of the moving plate 9.

The side wall of the moving plate 9 is provided with a blind hole 902, the side wall of the rotating disc 12 is provided with a bump 122, when the medicine injection device is not used, the bump 122 extends into the first through hole 11, when the device is used, the bump 122 extends into the blind hole 902, so that the rotating disc 12 and the moving plate 9 are temporarily fixed, the bump 122 is provided with two bumps, the two bumps 122 are symmetrically distributed at two sides of the rotating disc 12, when the rotating disc 12 is rotated, the position of the bump 122 at the inner side of the rotating disc 12 is known by observing the bump 122 at the outer side of the rotating disc 12, one side of the second through hole 13 is fixedly welded with a sleeve 131, when the device is used, the rotating disc 12 is rotated, so that the sleeve 131 extends into the first through hole 11, the rotating disc 12 and the moving plate 9 are fixed, the needle 101 extends out through the first through hole 11 and the second through hole 13, when the device is not used, the, preventing the needle 101 from extending.

The rotating disc 12 is in clearance fit with the moving plate 9, so that a space for movement is reserved for the lug 122 and the sleeve 131 while the rotating disc 12 is screwed by hands.

Specifically, the working principle of the nuclear medicine injection device is as follows: when the injection device is used, the second push plate 504 and the second pull rod 503 of the medicine storage cylinder 5 are pulled outwards firstly, the second piston 502 of the medicine storage cylinder 5 is driven to move, a medicine storage space is reserved for the cylinder body 501 of the medicine storage cylinder 5, the first valve 4 is closed, the second valve 6 is opened, then the rotary disc 12 is rotated manually, the first through hole 11 and the second through hole 13 are in a communication state, the outer side wall of the rotary disc 12 is attached to the bottle opening of a medicine bottle containing medicine liquid, after the injector 1 is pushed by hand, the needle 101 of the injector 1 can penetrate into the medicine bottle through the first through hole 11 and the second through hole 13, the medicine liquid is extracted into the needle tube 102 of the injector 1 by using the injector 1, after the completion, the rotary disc 12 is separated from the bottle opening of the medicine bottle, under the acting force of the spring 14, the movable plate 9 and the rotary disc 12 are reset, the needle 101 of the injector 1 does not extend, then closing the second valve 6 and opening the first valve 4, pushing the first push plate 105 of the injector 1 by hand, further making the first pull rod 104 of the injector 1 push the first piston 103 to move, making the liquid medicine in the needle tube 102 of the injector 1 flow into the medicine storage cylinder 5 through the through hole 2 and the pipeline 3, closing the first valve 4 after the completion, then opening the second valve 6, repeating the above steps, using the injector 1 to extract other kinds of liquid medicine from other medicine bottles, then injecting the liquid medicine into the medicine storage cylinder 5, and then alternately pushing and pulling the first pull rod 104 of the injector 1 and the second pull rod 503 of the medicine storage cylinder 5, so that the two kinds of liquid medicine are circulated and mixed between the needle tube 102 of the injector 1 and the cylinder 501 of the medicine storage cylinder 5; when the medicine injection device is not used, the rotary disc 12 is manually rotated, the first through hole 11 and the second through hole 13 are not communicated in a staggered mode, and then the lug 122 on the inner side of the rotary disc 12 extends into the first through hole 11.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a nuclear medicine injection device, includes syringe (1), its characterized in that, through-hole (2) have been seted up to the lateral wall of syringe (1), one side fixedly connected with pipeline (3) of through-hole (2), be provided with first valve (4) on pipeline (3), the fixed intercommunication of one end of pipeline (3) has storage cartridge case (5), storage cartridge case (5) with syringe (1) fixed connection, the output of syringe (1) is provided with second valve (6), the one end screw thread of syringe (1) has cup jointed fixed plate (7), it has guide bar (8) to slide to run through on fixed plate (7), the one end fixedly connected with movable plate (9) of guide bar (8), the other end fixedly connected with limiting plate (10) of guide bar (8), one side of limiting plate (10) with fixed plate (7) laminating, the injection device is characterized in that a first through hole (11) is formed in the surface of the moving plate (9), the first through hole (11) is opposite to the output end of the injector (1), a rotary disc (12) is rotatably connected to one side of the moving plate (9), the rotary disc (12) is in clearance fit with the moving plate (9), a second through hole (13) is formed in the surface of the rotary disc (12), the second through hole (13) is opposite to the first through hole (11), and a spring (14) is fixedly welded between the fixed plate (7) and the moving plate (9).

2. The nuclear medicine injection device according to claim 1, wherein the syringe (1) comprises a needle (101), a needle tube (102), a first piston (103), a first pull rod (104) and a first push plate (105), the needle (101) is in threaded connection with the output end of the needle tube (102), the first piston (103) slides along the inner side wall of the needle tube (102), one end of the first pull rod (104) is fixedly connected with the first piston (103), and the other end of the first pull rod (104) is fixedly connected with the first push plate (105).

3. A nuclear medicine injector as claimed in claim 2, wherein a push block (106) is fixedly connected to one end of said needle tube (102), the side wall of said push block (106) is provided with a rough surface, two push blocks (106) are provided, and two push blocks (106) are symmetrical to each other.

4. A nuclear medicine injection device according to claim 2, wherein the surface of said needle tube (102) is provided with graduation marks (107), said graduation marks (107) are provided in a plurality, and a plurality of said graduation marks (107) are equally spaced.

5. The nuclear medicine injection device according to claim 1, wherein the storage cartridge (5) comprises a cylinder body (501), a second piston (502), a second pull rod (503) and a second push plate (504), the cylinder body (501) is a transparent cylinder body, the cylinder body (501) is fixedly connected with the side wall of the injector (1), the second piston (502) slides along the inner side wall of the cylinder body (501), one end of the second pull rod (503) is fixedly connected with the second piston (502), and the other end of the second pull rod (503) is fixedly connected with the second push plate (504).

6. A nuclear medicine infusion device as claimed in claim 1, wherein the surface of said guide rods (8) is smooth, four guide rods (8) are provided, and four guide rods (8) are uniformly distributed along said fixing plate (7).

7. The nuclear medicine injection device according to claim 1, wherein the moving plate (9) is a circular moving plate, the circumferential side surface of the moving plate (9) is provided with an outer protrusion (901), and one side of the moving plate (9) is provided with a blind hole (902).

8. The nuclear medicine injection device according to claim 7, wherein an L-shaped block (121) is fixedly welded to one side of the rotary plate (12), and the L-shaped block (121) slides along the outer convex portion (901).

9. A nuclear medicine infusion device according to claim 8, wherein the side wall of said dial (12) is provided with a projection (122), said projection (122) cooperating with said blind hole (902).

10. The nuclear medicine injection device according to claim 1, wherein a sleeve (131) is fixedly welded to one side of the second through hole (13), and the sleeve (131) is engaged with the first through hole (11).