Disposable high-pressure radiography syringe

Abstract

The utility model discloses a disposable high-pressure radiography syringe in the technical field of syringes, which comprises an injection needle tube body, a dismounting mechanism is arranged on the outer side of the injection needle tube body, a pushing mechanism is arranged on the right side of the injection needle tube body, a limiting sliding block is slidably connected in an air bin, and a pressing sliding block is fixedly mounted at the lower end of the limiting sliding block. The disposable high-pressure radiography injector is composed of the injection needle tube body, the disassembling and assembling mechanism and the pushing and pressing mechanism, the disassembling and assembling mechanism adopts the mode of combining pneumatic transmission and rubber friction, the injection needle tube body can be rapidly pressurized and fixed, the pushing and pressing mechanism can push and press the injection needle tube body, and the pushing and pressing mechanism can push and press the injection needle tube body. The mounting and dismounting effects of the injection needle tube body are effectively improved, especially in the operation of using a disposable injection needle tube body, the pushing and pressing mechanism and the dismounting and mounting mechanism are used in cooperation, high-strength pushing and pressing force is provided through a hydraulic rod, and the effect of pushing and conveying substances in the injection needle tube body in a pressurized mode can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to a disposable high-pressure angiography syringe. Background Art

[0002] A syringe is a medical tool mainly used to inject liquid or gaseous substances into the human body, or to extract liquid from the body. It usually consists of a syringe with a small hole at the front end and a movable piston core rod; a high-pressure syringe is a professional medical device mainly used to quickly and accurately inject high-concentration X-ray contrast agents into the patient's body during medical imaging examinations.

[0003] The patent document with application number CN201921861482.4 discloses a high-pressure syringe, which includes a high-pressure syringe body; a syringe, the syringe including a syringe body and a needle connecting tube, one end of the syringe body is provided with a accommodating cavity, the outer wall of the syringe body is provided with a clamping ring near the cavity opening of the accommodating cavity, the clamping ring is clamped to the high-pressure syringe body, and the range value of the thickness D of the clamping ring is: 4mm≤D≤9mm; the needle connecting tube is connected to one end of the syringe body away from the cavity opening of the accommodating cavity, and is connected to the accommodating cavity; and a piston, the piston is slidably arranged in the accommodating cavity and is connected to the high-pressure syringe body. The technical solution of the present utility model improves the efficiency of disassembly and assembly of high-pressure syringes; at the same time, it improves the strength of the connection between the syringe and the high-pressure syringe body, ensuring the stability of the connection between the syringe and the high-pressure syringe body. Based on the search of the above-mentioned patents and combined with the syringes in the prior art, it is found that during the use of the syringe, if the same syringe is used repeatedly, a certain amount of residual liquid will often be generated inside it. This residual liquid may have an adverse effect on subsequent injection operations and reduce the accuracy and efficiency of the injection. However, the common syringes on the market are relatively complicated in design when disassembling and installing the injection needle tube, resulting in medical staff needing to spend extra time on tedious processing operations during the replacement of the needle tube. Utility Model Content

[0004] The purpose of the present invention is to provide a disposable high-pressure radiographic syringe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable high-pressure angiography syringe, comprising an injection needle body, a disassembly and assembly mechanism is provided on the outer side of the injection needle body, a pushing mechanism is provided on the right side of the injection needle body, the disassembly and assembly mechanism comprises a support seat, a buckle inner groove, a rubber protrusion, an upper support rod, an air chamber, a limit slider, a downward slider, a limit block, a downward rod, a rubber gasket, a trachea body and an air pump body, the internal sliding connection of the air chamber is the limit slider, the lower end of the limit slider is fixedly installed with the downward slider, the lower end of the downward slider is fixedly installed with the downward rod, the end of the downward rod away from the downward slider is fixedly installed with a rubber gasket, the upper end of the air chamber is fixedly plugged with the trachea body, and the end of the trachea body away from the air chamber is fixedly connected to the air pump body.

[0006] Optionally, a support seat is provided below the injection needle tube body, a buckle inner groove is provided in the middle of the support seat, and the air pump body is fixedly mounted on the upper support rod.

[0007] Optionally, rubber bumps are fixedly mounted on the inner wall of the buckle inner groove, and multiple groups of rubber bumps are distributed on the inner wall of the buckle inner groove from left to right.

[0008] Optionally, an upper support rod is fixedly mounted on the upper end of the support seat, and the air chamber is fixedly mounted on the middle part of the upper support rod.

[0009] Optionally, a limit block is fixedly installed at the lower end of the gas bin, and the limit block and the limit slider are in a snap-fit ​​relationship.

[0010] Optionally, the pushing mechanism includes a connecting rod, a mounting seat, a hydraulic rod, a pushing plate body and a push rod body in the tube, and the right end of the support seat is fixedly mounted with a connecting rod.

[0011] Optionally, a mounting seat is fixedly installed on the right end of the connecting rod, a hydraulic rod is fixedly installed on the middle part of the mounting seat, a push plate body is installed on the transmission end of the hydraulic rod, and an in-tube push rod body is provided on the left side of the push plate body, and the in-tube push rod body is located on the inner side of the injection needle tube body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In the utility model, a disassembly and assembly mechanism and a pushing mechanism are provided. The design of the disassembly and assembly mechanism combines pneumatic transmission and mechanical structure, which simplifies the installation and disassembly process of the injection needle body, reduces the difficulty of operation, and improves work efficiency. The disassembly and assembly mechanism uses the air pressure generated by the air pump body to quickly fix and release the injection needle body, greatly shortening the time for replacing the needle tube. The coordinated use of rubber bumps and rubber gaskets provides high friction, ensures the stability of the injection needle body during the disassembly and assembly process, and prevents errors caused by shaking or displacement during operation; the pushing mechanism uses the pushing force provided by the hydraulic rod to accurately control the pushing speed and pressure of the contrast agent, ensuring the accuracy and consistency of the injection operation. The application of the hydraulic system provides a strong pushing force, so that the injection agent can be pushed quickly and evenly, thereby improving the injection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0015] Figure 2 This is a schematic structural diagram of the utility model when viewed from the front plane;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the structure of the utility model from a three-dimensional top view;

[0019] Figure 6 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 7 This is a schematic diagram of the structure of the utility model from a plan view;

[0021] Figure 8 This is a schematic diagram of the structure of the utility model in a three-dimensional cross-section Figure 3 .

[0022] In the figure: 1. Injection needle tube body; 2. Disassembly and assembly mechanism; 201. Support seat; 202. Inner groove of the buckle; 203. Rubber protrusion; 204. Upper support rod; 205. Air chamber; 206. Limit slider; 207. Down-pressing slider; 208. Limiting block; 209. Down-pressing rod; 210. Rubber gasket; 211. Air tube body; 212. Air pump body; 3. Pushing mechanism; 301. Connecting rod; 302. Mounting seat; 303. Hydraulic rod; 304. Pushing plate body; 305. Push rod body in the tube. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 8In the embodiment of the present invention, a disposable high-pressure radiographic syringe includes an injection needle body 1, a disassembly and assembly mechanism 2 is provided on the outside of the injection needle body 1, and a pushing mechanism 3 is provided on the right side of the injection needle body 1. The disassembly and assembly mechanism 2 includes a support seat 201, a buckle inner groove 202, a rubber protrusion 203, an upper support rod 204, an air chamber 205, a limiting slider 206, a downward pressing slider 207, a limiting block 208, a downward pressing rod 209, a rubber gasket 210, a tracheal body 211 and an air pump body 212. The interior of the air chamber 205 is slidably connected to the limiting slider 206, and the lower end of the limiting slider 206 is fixedly installed with a downward pressing slider 207, and the lower end of the downward pressing slider 207 is fixedly installed with a downward pressing rod 209. The end of the downward pressing rod 209 away from the downward pressing slider 207 is fixed. A rubber gasket 210 is fixedly installed, and a trachea body 211 is fixedly inserted at the upper end of the air tank 205. The end of the trachea body 211 away from the air tank 205 is fixedly connected to the air pump body 212. A support seat 201 is provided below the injection needle body 1, and a buckle inner groove 202 is opened in the middle of the support seat 201. The air pump body 212 is fixedly mounted on the upper support rod 204. Rubber protrusions 203 are fixedly mounted on the inner wall of the buckle inner groove 202. Multiple groups of rubber protrusions 203 are distributed on the inner wall of the buckle inner groove 202 from left to right. The upper end of the support seat 201 is fixedly mounted with the upper support rod 204, and the air tank 205 is fixedly mounted on the middle part of the upper support rod 204. A limiting block 208 is fixedly mounted on the lower end of the air tank 205, and the limiting block 208 is in a buckle relationship with the limiting slider 206;

[0027] The support seat 201 provides stable support for the entire disassembly mechanism 2, ensuring the smoothness of the injection needle body 1 during installation and removal. The buckle inner groove 202 ensures that the injection needle body 1 can be installed quickly and accurately. The rubber bump 203 increases the friction with the injection needle body 1, ensuring that the needle body will not slide under the action of air pressure, improving the stability and safety of the operation. The air chamber 205 provides sufficient pressure to fix and remove the injection needle body 1, ensuring the smooth operation. The limit slider 206 limits the movement range of the pressing slider 207 to prevent excessive compression and protect the injection needle body. 1 is not damaged while ensuring the accuracy of operation. Under the action of air pressure, the pressing slider 207 pushes the pressing rod 209 to compress the rubber gasket 210, thereby fixing the injection needle body 1 and achieving fast and stable installation. The rubber gasket 210 provides a buffering effect to protect the injection needle body 1 from damage. At the same time, it increases friction during compression to prevent the needle body from sliding. The air tube body 211 connects the air pump body 212 and the air tank 205 to ensure stable transmission of air pressure. The air pump body 212 generates the necessary air pressure to provide power for the disassembly mechanism 2, thereby achieving fast installation and disassembly of the injection needle body 1.

[0028] The pushing mechanism 3 includes a connecting rod 301, a mounting seat 302, a hydraulic rod 303, a pushing plate 304 and an in-tube push rod 305. The connecting rod 301 is fixedly mounted on the right end of the support seat 201, the mounting seat 302 is fixedly mounted on the right end of the connecting rod 301, the hydraulic rod 303 is fixedly mounted in the middle of the mounting seat 302, the pushing plate 304 is mounted on the transmission end of the hydraulic rod 303, and the in-tube push rod 305 is provided on the left side of the pushing plate 304. The in-tube push rod 305 is located inside the injection needle tube 1; The mounting seat 302 provides a stable mounting position for the connecting rod 301, and the hydraulic rod 303 provides a strong pushing force to ensure that the injection can be effectively and quickly pushed out, thereby improving the injection efficiency. The pushing plate 304 serves as the support surface of the hydraulic rod 303, transmitting the thrust of the hydraulic rod 303 to push the push rod body 305 in the tube to realize the discharge of the substance in the injection needle tube body 1. The push rod body 305 in the tube directly acts on the substance in the injection needle tube body 1, and pushes out the injection by squeezing, thereby ensuring the accuracy and efficiency of the injection operation.

[0029] The working principle of the present invention is as follows: the disposable high-pressure radiography syringe is composed of an injection needle body 1, a disassembly and assembly mechanism 2 and a pushing mechanism 3. Before using the disposable high-pressure radiography syringe, the air pump body 212 and the hydraulic rod 303 need to be connected to the power supply and the control terminal in advance. When using the disposable high-pressure radiography syringe, first activate the disassembly and assembly mechanism 2, place the disposable injection needle body 1 in the buckle inner groove 202, and then start the air pump body 212. The air pump body 212 injects gas into the air chamber 205 through the trachea body 211, so that the air pressure in the air chamber 205 increases, and then squeezes the limit slider 206 and the pressing slider 207 downward, so that the two groups of pressing rods 209 and the rubber gasket 210 tighten and press the injection needle body 1 downward, so that the injection needle body 1 is stably squeezed and installed inside the buckle inner groove 202, and the rubber protrusion 203 The rubber gasket 210 can provide high friction to ensure the installation stability of the injection needle tube body 1, and then the pushing mechanism 3 is activated, and the hydraulic rod 303 is started to push the pushing plate body 304 and the inner push rod body 305 to the left, and the inner push rod body 305 is used to squeeze the inside of the injection needle tube body 1, thereby draining out the substance in the injection needle tube body 1; during subsequent disassembly, it is only necessary to extract the gas in the air tank 205 to quickly remove the injection needle tube body 1; in summary, the disassembly and assembly mechanism 2 adopts a combination of pneumatic transmission and rubber friction, which can quickly pressurize and fix the injection needle tube body 1, effectively improving the installation and disassembly effect of the injection needle tube body 1, especially in the operation of using a disposable injection needle tube body 1, the pushing mechanism 3 is used in conjunction with the disassembly and assembly mechanism 2, and the hydraulic rod 303 is used to provide high-intensity pushing force, which can achieve the effect of pressurizing and pushing the substance in the injection needle tube body 1.

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

Claims

1. A disposable high-pressure radiographic syringe, comprising a syringe body (1), characterized in that: The outer side of the injection needle tube body (1) is provided with a disassembly mechanism (2), and the right side of the injection needle tube body (1) is provided with a pushing mechanism (3), the disassembly mechanism (2) includes a support seat (201), a buckle inner groove (202), a rubber protrusion (203), an upper support rod (204), an air chamber (205), a limiting slider (206), a downward pressing slider (207), a limiting block (208), a downward pressing rod (209), a rubber gasket (210), an air tube body (211) and an air pump body (212), the air chamber (2 05) is internally slidably connected to a limit slider (206), a lower end of the limit slider (206) is fixedly mounted with a downward pressing slider (207), a lower end of the downward pressing slider (207) is fixedly mounted with a downward pressing rod (209), an end of the downward pressing rod (209) away from the downward pressing slider (207) is fixedly mounted with a rubber gasket (210), an upper end of the air chamber (205) is fixedly plugged with an air pipe body (211), and an end of the air pipe body (211) away from the air chamber (205) is fixedly connected with an air pump body (212).

2. A disposable high-pressure radiographic syringe according to claim 1, characterized in that: A support base (201) is provided below the injection needle tube body (1), a buckle inner groove (202) is provided in the middle of the support base (201), and the air pump body (212) is fixedly mounted on the upper support rod (204).

3. The disposable high-pressure radiographic syringe according to claim 1, characterized in that: Rubber bumps (203) are fixedly mounted on the inner wall of the buckle inner groove (202), and multiple groups of the rubber bumps (203) are distributed on the inner wall of the buckle inner groove (202) from left to right.

4. The disposable high-pressure radiographic syringe according to claim 1, characterized in that: An upper support rod (204) is fixedly mounted on the upper end of the support seat (201), and the gas chamber (205) is fixedly mounted on the middle portion of the upper support rod (204).

5. The disposable high-pressure radiographic syringe according to claim 1, characterized in that: A limit block (208) is fixedly mounted on the lower end of the gas bin (205), and the limit block (208) and the limit slider (206) are in a snap-fit ​​relationship.

6. The disposable high-pressure radiographic syringe according to claim 1, characterized in that: The pushing mechanism (3) comprises a connecting rod (301), a mounting seat (302), a hydraulic rod (303), a pushing plate body (304) and an in-tube pushing rod body (305); the right end of the support seat (201) is fixedly mounted with the connecting rod (301).

7. The disposable high-pressure radiographic injector according to claim 6, characterized in that: The right end of the connecting rod (301) is fixedly mounted with a mounting seat (302), the middle of the mounting seat (302) is fixedly mounted with a hydraulic rod (303), the transmission end of the hydraulic rod (303) is mounted with a push plate (304), the left side of the push plate (304) is provided with an in-tube push rod (305), and the in-tube push rod (305) is located inside the injection needle tube (1).

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