Cardiovascular intervention injector

Abstract

The utility model relates to the technical field of medical instruments, and discloses a cardiovascular intervention injector which comprises an injection mechanism, the bottom of the injection mechanism is fixedly connected with an adjusting mechanism, the injection mechanism comprises an injection device shell, an injection device push rod is inserted into the injection device shell, and the injection device push rod is fixedly connected with the adjusting mechanism. A push plate is fixedly connected to one end of the injector push rod, the adjusting mechanism comprises a fixing frame, and the fixing frame is fixedly connected with the surface of the injector shell. According to the utility model, after the indicating ring moves to a proper position, a doctor pushes the push plate to drive the push rod of the injector to push and inject a contrast agent in the shell of the injector, and when the set one-time injection amount is reached, the push plate is attached to the side surface of the limiting ring, and the limiting ring limits the push plate at the moment, so that the problem of excessive one-time injection amount is avoided; doctors can perform quantitative injection conveniently, and the operation difficulty of the doctors is reduced.

Description

Technical Field

[0001] The utility model application relates to the technical field of medical devices, in particular to a cardiovascular interventional injector. Background Art

[0002] A cardiovascular interventional injector is a device used to inject contrast agents or drugs during cardiovascular interventional surgery. During cardiovascular interventional surgery, doctors need to inject contrast agents or drugs into the patient's vascular system through tools such as catheters for vascular imaging or treatment.

[0003] In the prior art, such as Chinese patent announcement number: CN202951060U, discloses "a cardiovascular interventional injector", including a needle tube, one end of the needle tube has a joint, the end of the needle tube has a baffle, a piston rod is provided in the needle tube, one end of the piston rod is provided with a piston, and the other end is provided with a push head, a fixing ring is fixed on the baffle, a bolt is threadedly connected to the fixing ring, a nut is provided in the fixing ring, and the piston rod has a thread matching the nut.

[0004] However, in the prior art, in certain cases, a large dose of contrast agent is required to obtain a clear image, but a single injection of a large dose may burden the patient's kidneys. Therefore, doctors may choose to inject a large dose of contrast agent in several times to reduce the burden on the kidneys. At the same time, in order to reduce the risk of adverse reactions, doctors may choose to inject the contrast agent in several times to monitor the patient's response. When performing quantitative push injections, traditional push injectors require doctors to rely on their own operating experience to perform stable quantitative push injections, which places high operational requirements on doctors. When examining patients, doctors wear gloves on their hands, which further increases the difficulty of quantitative push injections, which is not conducive to doctors performing push injection operations. Summary of the invention

[0005] In order to solve the problem that when performing quantitative push injection with a traditional push injector, the doctor needs to rely on his or her own operating experience to perform stable quantitative push injection, which places high operating requirements on the doctor; and because the doctor wears gloves on his or her hands when examining the patient, the difficulty of quantitative push injection is further increased, which is not conducive to the doctor's push injection operation. The utility model provides a cardiovascular intervention push injector to solve the above problem.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cardiovascular interventional injector comprises an injector mechanism, the bottom of which is fixedly connected to an adjusting mechanism, the injector mechanism comprises an injector housing, a injector push rod is inserted into the injector housing, one end of the injector push rod is fixedly connected to a push plate, the adjusting mechanism comprises a fixing frame, the fixing frame is fixedly connected to the surface of the injector housing, a slide rail is fixedly connected to the surface of the fixing frame, a slider is slidably connected to the inside of the slide rail, a connecting plate is fixedly connected to the upper part of the slider, a No. 1 fixing plate is fixedly connected to the upper part of the connecting plate, a limiting ring is fixedly connected to the surface of the No. 1 fixing plate, the limiting ring is fitted with the side of the push plate, a threaded adjusting rod is rotatably connected to the inside of the slide rail, and the threaded adjusting rod is threadably connected to the slider.

[0008] Furthermore, a scale bar is provided on the surface of the injection mechanism.

[0009] Furthermore, a second fixing plate is fixedly connected to the surface of the connecting plate, an indicator ring is fixedly connected to the upper portion of the second fixing plate, and a surface of the indicator ring is slidably connected to a surface of the injector housing.

[0010] Furthermore, one end of the threaded adjustment rod passes through the surface of the slide rail, and one end of the threaded adjustment rod is fixedly connected to a No. 1 knob.

[0011] Furthermore, a through slot is provided on one side of the slide rail, a threaded rod is threadedly connected to a side surface of the slide block, and the threaded rod is located inside the through slot.

[0012] Furthermore, one end of the threaded rod is fixedly connected to a No. 2 knob, and the No. 2 knob is tightly squeezed and fixed to the side surface of the slide rail.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the adjusting rod is rotated, the slider is driven to slide along the inner part of the slide rail by turning the No. 1 knob, and the No. 1 fixing plate and the limiting ring are driven to move when the connecting plate moves. At the same time, the No. 2 fixing plate and the indicator ring driven by the connecting plate are moved. At this time, the indicator ring indicates the scale bar on the surface of the injector shell. The total amount of contrast agent extracted from the injector shell can be read through the scale bar. The amount of one injection is the total amount minus the amount of contrast agent displayed on the scale bar where the indicator ring stops. When the indicator ring moves to the appropriate position, the doctor pushes the push plate to drive the push rod of the injector to inject the contrast agent inside the injector shell. When the set injection amount is reached, the push plate and the side of the limiting ring will fit together. At this time, the limiting ring will limit the push plate, so as to avoid the problem of too much injection at one time, which is convenient for the doctor to perform quantitative injection and reduces the difficulty of operation for the doctor.

[0015] 2. In the utility model, after the injection volume is adjusted by rotating the No. 1 knob to drive the threaded adjustment rod to rotate, the No. 2 knob is then turned to drive the threaded rod to rotate along the slider. At this time, the No. 2 knob is squeezed and fixed to the side of the slide rail, thereby locking the position of the slider to prevent the slider from moving during the push injection process, causing the position of the indicator ring and the limit ring to move, resulting in inaccurate injection volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a first three-dimensional structural schematic diagram of a cardiovascular interventional injector proposed by the utility model;

[0018] Figure 2 The utility model provides a front view structural schematic diagram of a cardiovascular interventional injection device;

[0019] Figure 3 A second three-dimensional structural schematic diagram of a cardiovascular interventional injector is provided for the utility model;

[0020] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a slide rail and a slide block in a cardiovascular interventional injection device.

[0021] The meanings of the reference numerals in the figure are as follows: 1. injection mechanism; 11. injection device housing; 12. scale bar; 13. injection device push rod; 14. push plate; 2. adjustment mechanism; 21. slide rail; 22. slide block; 23. connecting plate; 24. No. 1 fixed plate; 25. limit ring; 26. threaded adjustment rod; 27. No. 1 knob; 28. fixing frame; 29. ​​No. 2 fixed plate; 210. indicator ring; 211. through groove; 212. threaded insert rod; 213. No. 2 knob. DETAILED DESCRIPTION

[0022] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Reference Figure 1-Figure 4 A cardiovascular interventional injector comprises an injector mechanism 1, the bottom of the injector mechanism 1 is fixedly connected to an adjusting mechanism 2, the injector mechanism 1 comprises an injector housing 11, an injector push rod 13 is inserted into the injector housing 11, one end of the injector push rod 13 is fixedly connected to a push plate 14, the adjusting mechanism 2 comprises a fixing frame 28, the fixing frame 28 is fixedly connected to the surface of the injector housing 11, and a slide rail 21 is fixedly connected to the surface of the fixing frame 28, a slide block 22 is slidably connected to the inside of the slide rail 21, and a connecting plate is fixedly connected to the upper part of the slide block 22 23, a No. 1 fixing plate 24 is fixedly connected to the upper part of the connecting plate 23, a limit ring 25 is fixedly connected to the surface of the No. 1 fixing plate 24, the limit ring 25 is fitted with the side of the push plate 14, a threaded adjustment rod 26 is rotatably connected inside the slide rail 21, the threaded adjustment rod 26 is threadedly connected to the slider 22, a scale bar 12 is provided on the surface of the push mechanism 1, a No. 2 fixing plate 29 is fixedly connected to the surface of the connecting plate 23, an indicator ring 210 is fixedly connected to the upper part of the No. 2 fixing plate 29, and the surface of the indicator ring 210 is slidably connected to the surface of the pusher housing 11.

[0024] Specifically, the contrast agent is sucked into the pusher housing 11 by pulling the push plate 14 to drive the pusher rod 13, and then the pusher housing 11 is connected to the injection tube;

[0025] According to the injection volume requirement, the threaded adjustment rod 26 is rotated by turning the No. 1 knob 27, and the rotation of the threaded adjustment rod 26 drives the slider 22 to slide along the inside of the slide rail 21, thereby driving the connecting plate 23 to move its position. When the connecting plate 23 moves, the No. 1 fixing plate 24 and the limit ring 25 move, and the connecting plate 23 will drive the No. 2 fixing plate 29 and the indicator ring 210 to move. At this time, the indicator ring 210 will indicate the scale bar 12 on the surface of the pusher housing 11, and the angiography of the extraction inside the pusher housing 11 The total amount of the agent can be read through the scale bar 12. The amount of one injection is the total amount minus the amount of contrast agent displayed on the scale bar 12 where the indicator ring 210 stops. When the indicator ring 210 moves to the appropriate position, the doctor pushes the push plate 14 to drive the injector push rod 13 to inject the contrast agent inside the injector housing 11. When the set injection amount is reached, the push plate 14 and the side of the limit ring 25 will fit together. At this time, the limit ring 25 will limit the push plate 14 to avoid the problem of too much injection at one time, which is convenient for doctors to perform quantitative injections and reduces the difficulty of doctors' operations.

[0026] As an optimization solution, Figure 3 and Figure 4As shown, one end of the threaded adjustment rod 26 passes through the surface of the slide rail 21, and one end of the threaded adjustment rod 26 is fixedly connected to a knob 27, a through slot 211 is provided on one side of the slide rail 21, a threaded plug rod 212 is threadedly connected to the side of the slider 22, and the threaded plug rod 212 is located inside the through slot 211, and one end of the threaded plug rod 212 is fixedly connected to a knob 213, and the knob 213 is tightly squeezed and fixed to the side of the slide rail 21.

[0027] Specifically, after the injection volume is adjusted by turning the No. 1 knob 27 to drive the threaded adjustment rod 26 to rotate, the No. 2 knob 213 is then turned to drive the threaded insertion rod 212 to rotate along the slider 22. At this time, the No. 2 knob 213 is squeezed and fixed to the side of the slide rail 21, thereby locking the position of the slider 22 to prevent the slider 22 from moving during the push injection process, causing the indicator ring 210 and the limit ring 25 to move, resulting in inaccurate injection volume.

[0028] Working principle: By pulling the push plate 14, the push rod 13 of the pusher is driven to suck the contrast agent into the pusher housing 11, and then the pusher housing 11 is connected to the injection tube;

[0029] According to the injection volume requirement, the threaded adjustment rod 26 is rotated by turning the No. 1 knob 27, and the slider 22 is driven to slide along the inside of the slide rail 21 by the rotation of the threaded adjustment rod 26, thereby driving the connecting plate 23 to move its position. When the connecting plate 23 moves, the No. 1 fixing plate 24 and the limit ring 25 move, and the connecting plate 23 will drive the No. 2 fixing plate 29 and the indicator ring 210 to move. At this time, the indicator ring 210 will move the scale bar 12 on the surface of the injection device housing 11. Indicator, the total amount of contrast agent extracted from the pusher housing 11 can be read through the scale bar 12, and the amount of one injection is the total amount minus the amount of contrast agent displayed on the scale bar 12 where the indicator ring 210 stops. When the indicator ring 210 moves to a suitable position, the doctor pushes the push plate 14 to drive the push rod 13 of the pusher to push the contrast agent inside the pusher housing 11. When the set injection amount is reached, the push plate 14 and the side of the limit ring 25 will fit together, and the limit ring 25 will limit the push plate 14 at this time;

[0030] After the injection volume is adjusted by rotating the No. 1 knob 27 to drive the threaded adjustment rod 26, the No. 2 knob 213 is then turned to drive the threaded insertion rod 212 to rotate along the slider 22. At this time, the No. 2 knob 213 is squeezed and fixed to the side of the slide rail 21, thereby locking the position of the slider 22.

[0031] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cardiovascular interventional injector, comprising an injector mechanism (1), wherein the bottom of the injector mechanism (1) is fixedly connected to an adjusting mechanism (2), the injector mechanism (1) comprises an injector housing (11), an injector push rod (13) is inserted into the injector housing (11), and one end of the injector push rod (13) is fixedly connected to a push plate (14), characterized in that: The adjustment mechanism (2) comprises a fixing frame (28), the fixing frame (28) being fixedly connected to the surface of the injection device housing (11), and the fixing frame (28) being fixedly connected to a slide rail (21) on the surface, a slider (22) being slidably connected inside the slide rail (21), a connecting plate (23) being fixedly connected to the upper part of the slider (22), a No. 1 fixing plate (24) being fixedly connected to the upper part of the connecting plate (23), a limiting ring (25) being fixedly connected to the surface of the No. 1 fixing plate (24), the limiting ring (25) being fitted to the side of the push plate (14), a threaded adjustment rod (26) being rotatably connected inside the slide rail (21), and the threaded adjustment rod (26) being threadedly connected to the slider (22).

2. The cardiovascular interventional injector according to claim 1, characterized in that: The surface of the injection pushing mechanism (1) is provided with a scale bar (12).

3. The cardiovascular interventional injector according to claim 1, characterized in that: A second fixing plate (29) is fixedly connected to the surface of the connecting plate (23), an indicator ring (210) is fixedly connected to the upper portion of the second fixing plate (29), and a surface of the indicator ring (210) is slidably connected to a surface of the injector housing (11).

4. The cardiovascular interventional injector according to claim 1, characterized in that: One end of the threaded adjustment rod (26) passes through the surface of the slide rail (21), and one end of the threaded adjustment rod (26) is fixedly connected to a first knob (27).

5. The cardiovascular interventional injector according to claim 1, characterized in that: A through slot (211) is provided on one side of the slide rail (21), a threaded insert rod (212) is threadedly connected to the side of the slide block (22), and the threaded insert rod (212) is located inside the through slot (211).

6. The cardiovascular interventional injector according to claim 5, characterized in that: One end of the threaded rod (212) is fixedly connected to a second knob (213), and the second knob (213) is tightly pressed and fixed to the side of the slide rail (21).

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