Ultrasonic contrast agent microbubble oscillation injection device

Abstract

The utility model discloses an ultrasonic contrast agent microbubble oscillation push injection device, which comprises an injection device main body and a microbubble oscillator, the injection device main body is internally provided with an injection tube placing groove, the injection tube placing groove is internally provided with an injection tube, the injection tube is internally provided with a rubber plug, and the rubber plug is internally provided with a rubber sleeve. A push rod is arranged on the left side of the rubber plug, a push plate is arranged on the left side of the push rod, lead screw sleeves are arranged on the upper side and the lower side of the push plate, and guide lead screws are arranged in the lead screw sleeves in a penetrating mode. The linear motor is started to drive the first chain wheel to rotate, the transmission chain is pushed to drive the second chain wheel to rotate together under the action of friction force, the upper guide lead screw is fixedly connected with the first chain wheel, and the lower guide lead screw is fixedly connected with the second chain wheel, so that the guide lead screws on the two sides rotate along with the first chain wheel. Under the action of threads, the screw rod sleeve is pushed to drive the push plate to move rightwards, so that the push rod drives the rubber plug to move rightwards, and the contrast agent in the injection tube is pushed for injection.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an ultrasonic contrast agent microbubble oscillation push injection device. Background Art

[0002] Contrast agents are chemicals injected into human tissues or organs to enhance imaging. The density of these products is higher or lower than that of surrounding tissues, and the contrast formed is used to display images with certain instruments. For example, iodine preparations and barium sulfate are commonly used in X-ray observation. Because ultrasound is a pressure wave, the pulses generated by the transducer array will cause rapid changes in pressure. At the frequency of clinical diagnostic ultrasound imaging, microbubbles oscillate, resonate, and reflect sound, thereby generating detectable backscattered ultrasound signals. The sensitivity of microbubble detection depends on the imaging system's ability to distinguish between backscattered signals and tissue background.

[0003] After searching, a kind of ultrasonic contrast agent microbubble oscillation and injection device with publication number CN217187288U was found. The utility model is an ultrasonic contrast agent microbubble oscillation and injection device, which belongs to the field of medical device technology, including a device body, a push tube installed inside the device body, a microbubble oscillator installed on the top of the device body, an oscillation cabin arranged on the top of the microbubble oscillator, a disposable needle arranged on the top surface of the oscillation cabin, a driving motor installed at the tail of the device body, a push rod installed inside the driving motor, and a handle installed at the bottom of the device body; the ultrasonic contrast agent microbubble oscillation and injection device of the utility model can oscillate the contrast agent before injecting it into the patient's body by using the microbubble oscillator and the oscillation discharge disk, can drive the push head by using the driving motor and the rotating driving head to push the contrast agent in the push tube at a uniform speed and in a quantitative manner, and the design that the disposable needle and the push tube can be disassembled and replaced facilitates the disinfection of the device body while ensuring the ability of the device to be used multiple times.

[0004] The existing ultrasound contrast agent microbubble oscillation injection device has the following problems:

[0005] The current ultrasound contrast agent microbubble oscillation injection device is that medical staff inhale the prepared contrast agent into the syringe, and use manual shaking to oscillate the contrast agent inside the syringe to produce microbubbles. However, on the one hand, the bubbling rate of the manual shaking method is too low, and the microbubbles will disappear after a long period of static placement. On the other hand, the injection tube and the injection needle are usually fixedly connected. After one injection, a new injection tube needs to be replaced for injection, which causes a waste of medical resources.

[0006] In view of the above problems, we propose an ultrasound contrast agent microbubble oscillation injection device. Utility Model Content

[0007] The utility model aims to provide an ultrasound contrast agent microbubble oscillation push injection device to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasound contrast agent microbubble oscillation injection device, comprising an injection device body and a microbubble oscillator, the injection device body is provided with a syringe placement groove, the syringe placement groove is provided with a syringe, the syringe is provided with a rubber plug, a push rod is provided on the left side of the rubber plug, a push plate is provided on the left side of the push rod, screw sleeves are provided on the upper and lower sides of the push plate, a guide screw is passed through the screw sleeve, the upper input end of the guide screw is connected to a first sprocket, the outer sleeve of the first sprocket is provided with a transmission chain, a second sprocket is provided below the transmission chain, and the input end of the first sprocket is connected to a linear motor.

[0009] Preferably, the rubber stopper is fixedly connected to the push rod, the push rod is in contact with the push plate, the push plate is fixedly connected to the screw sleeve, the screw sleeve is threadedly matched with the guide screw, the upper guide screw is fixedly connected to the first sprocket, the lower guide screw is fixedly connected to the second sprocket, the first sprocket is chain-driven with the second sprocket through a transmission chain, and the linear motor is fixedly connected to the first sprocket.

[0010] Preferably, scale lines are provided on the outer wall of the injection tube, a fixed block is provided below the injection tube, a clamping block is provided above the injection tube, guide sliders are provided on both sides of the clamping block, guide grooves are provided at positions of the guide sliders corresponding to the guide sliders, and a fixing screw is provided above the clamping block.

[0011] Preferably, the injection tube is in contact with the fixed block and the clamping block respectively, the clamping block is fixedly connected to the guide slider, the guide slider is matched with the guide slot, and the clamping block is movably connected to the fixed screw.

[0012] Preferably, installation grooves are provided on the upper and lower sides of the right side of the injection tube, a microbubble oscillator is provided on the right side of the injection tube, push handles are provided on the upper and lower ends of the left side of the microbubble oscillator, a fixing spring is provided on the outer sleeve of the push handle, a mounting block is provided on the side of the push handle close to the injection tube, an oscillation chamber is provided inside the microbubble oscillator, and a bubble generating net is provided on the left side of the oscillation chamber.

[0013] Preferably, the push handle is elastically connected to the microbubble oscillator via a fixing spring, the push handle is fixedly connected to a mounting block, the mounting block is matched with a mounting groove, and the microbubble oscillator is fixedly connected to a bubbling net.

[0014] Preferably, an external threaded portion is provided at the right end of the injection device body, a threaded sleeve block is sleeved on the right side of the injection device body, a sealing ring is sleeved between the injection device body and the threaded sleeve block, and an injection needle is provided on the right side of the threaded sleeve block.

[0015] Preferably, the injection device body is threadably matched with a threaded sleeve block via an external threaded portion, and the threaded sleeve block is fixedly connected to the injection needle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model places the injection tube in the injection tube placement groove, rotates the fixing screw rod, pushes the clamping block under the action of the thread, moves down along the guide slide groove under the action of the guide slide block, and fixes the injection tube in cooperation with the fixing block below.

[0018] The utility model pulls the push handles on both sides of the microbubble oscillator to place the microbubble oscillator on the right side of the injection tube, and loosens the push handles. Since the push handles are elastically connected to the microbubble oscillator through fixed springs, the installation block is pushed into the installation groove under the elastic force of the fixed springs to complete the installation of the microbubble oscillator and the injection tube. Before injection, the contrast agent is pushed into the oscillation chamber and oscillated and foamed using the foaming net.

[0019] The linear motor of the utility model starts and drives the first sprocket to rotate, and under the action of friction force, the transmission chain is pushed to drive the second sprocket to rotate together. Since the upper guide screw is fixedly connected to the first sprocket, and the lower guide screw is fixedly connected to the second sprocket, the guide screws on both sides rotate accordingly, and under the action of the thread, the screw sleeve is pushed to drive the push plate to move right, so that the push rod drives the rubber plug to move right, thereby pushing the contrast agent inside the injection tube for injection.

[0020] After the injection is completed, the threaded sleeve block is rotated, and under the action of the thread, the threaded sleeve block drives the injection needle to be disassembled, so as to facilitate the replacement of the injection needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0023] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 4 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at B in the middle;

[0025] Figure 5For this utility model Figure 1 Schematic diagram of the partial enlarged structure at point C in the middle.

[0026] In the figure: 1. injection device body; 2. injection tube placement groove; 3. injection tube; 4. rubber plug; 5. push rod; 6. push plate; 7. screw sleeve; 8. guide screw; 9. first sprocket; 10. transmission chain; 11. second sprocket; 12. linear motor; 13. scale line; 14. fixed block; 15. clamping block; 16. guide slider; 17. guide slide groove; 18. fixed screw; 19. installation groove; 20. installation block; 21. push handle; 22. fixed spring; 23. microbubble oscillator; 24. bubbling net; 25. oscillation chamber; 26. injection needle; 27. threaded sleeve block; 28. external threaded part; 29. ​​sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 and Figure 2As shown, the utility model provides a technical solution: an ultrasound contrast agent microbubble oscillation push injection device, comprising an injection device body 1 and a microbubble oscillator 23, the injection device body 1 is provided with a syringe placement slot 2, the syringe placement slot 2 is provided with a syringe 3, the syringe 3 is provided with a rubber plug 4, the left side of the rubber plug 4 is provided with a push rod 5, the left side of the push rod 5 is provided with a push plate 6, the upper and lower sides of the push plate 6 are provided with a screw sleeve 7, the screw sleeve 7 is provided with a guide screw 8, the upper input end of the guide screw 8 is connected to a first sprocket 9, the outer sleeve of the first sprocket 9 is provided with a transmission chain 10, the lower part of the transmission chain 10 is provided with a second sprocket 11, the input end of the first sprocket 9 is connected to a linear motor 12, the rubber plug 4 is fixedly connected to the push rod 5, the push rod 5 is connected to the push plate 6 Contact, the push plate 6 is fixedly connected to the screw sleeve 7, the screw sleeve 7 is threadedly matched with the guide screw 8, the upper guide screw 8 is fixedly connected to the first sprocket 9, the lower guide screw 8 is fixedly connected to the second sprocket 11, the first sprocket 9 is chain-driven with the second sprocket 11 through the transmission chain 10, the linear motor 12 is fixedly connected to the first sprocket 9, and the linear motor 12 is started to drive the first sprocket 9 to rotate, and under the action of friction, the transmission chain 10 is pushed to drive the second sprocket 11 to rotate together. Since the upper guide screw 8 is fixedly connected to the first sprocket 9, and the lower guide screw 8 is fixedly connected to the second sprocket 11, the guide screws 8 on both sides rotate accordingly, and under the action of the thread, the screw sleeve 7 is pushed to drive the push plate 6 to move right, so that the push rod 5 drives the rubber stopper 4 to move right, thereby pushing the contrast agent inside the injection tube 3 for injection.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, further, a scale line 13 is provided on the outer wall of the injection tube 3, a fixed block 14 is provided below the injection tube 3, a clamping block 15 is provided above the injection tube 3, guide sliders 16 are provided on both sides of the clamping block 15, and a guide groove 17 is provided at the position of the guide slider 16 corresponding to the guide slider 16, and a fixing screw 18 is provided above the clamping block 15. The injection tube 3 contacts the fixed block 14 and the clamping block 15 respectively, the clamping block 15 is fixedly connected with the guide slider 16, the guide slider 16 is adapted to the guide groove 17, the clamping block 15 is movably connected with the fixing screw 18, the injection tube 3 is placed in the injection tube placement groove 2, the fixing screw 18 is rotated, the clamping block 15 is pushed by the action of the thread, and moves down along the guide groove 17 under the action of the guide slider 16, and the injection tube 3 is fixed in cooperation with the fixed block 14 below.

[0030] like Figure 1 and Figure 4As shown, further, mounting grooves 19 are provided on the upper and lower sides of the right side of the injection tube 3, a microbubble oscillator 23 is provided on the right side of the injection tube 3, and push handles 21 are provided on the upper and lower ends of the left side of the microbubble oscillator 23. A fixing spring 22 is provided on the outer sleeve of the push handle 21, and a mounting block 20 is provided on the side of the push handle 21 close to the injection tube 3. An oscillation chamber 25 is provided inside the microbubble oscillator 23, and a foaming net 24 is provided on the left side of the oscillation chamber 25. The push handle 21 is elastically connected to the microbubble oscillator 23 through the fixing spring 22, and the push handle 21 is fixedly connected to the mounting block 20 , the mounting block 20 is matched with the mounting groove 19, the microbubble oscillator 23 is fixedly connected to the bubbling net 24, the push handles 21 on both sides of the microbubble oscillator 23 are pulled, and the microbubble oscillator 23 is placed on the right side of the injection tube 3, and the push handles 21 are released. Since the push handle 21 is elastically connected to the microbubble oscillator 23 through the fixed spring 22, the mounting block 20 is pushed into the mounting groove 19 under the elastic force of the fixed spring 22, and the installation of the microbubble oscillator 23 and the injection tube 3 is completed. Before injection, the contrast agent is pushed into the oscillation chamber 25 and oscillated and bubbled using the bubbling net 24.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown, further, an external threaded portion 28 is provided at the right end of the injection device body 1, a threaded sleeve block 27 is sleeved on the right side of the injection device body 1, a sealing ring 29 is sleeved between the injection device body 1 and the threaded sleeve block 27, an injection needle 26 is provided on the right side of the threaded sleeve block 27, the injection device body 1 is threadedly matched with the threaded sleeve block 27 through the external threaded portion 28, the threaded sleeve block 27 is fixedly connected to the injection needle 26, and after the injection is completed, by rotating the threaded sleeve block 27, the threaded sleeve block 27 drives the injection needle 26 to be removed under the action of the thread, so as to facilitate the replacement of the injection needle 26.

[0032] Working principle: First, place the injection tube 3 in the injection tube placement groove 2, rotate the fixing screw 18, push the clamping block 15 under the action of the thread, move down along the guide groove 17 under the action of the guide slider 16, and fix the injection tube 3 with the fixing block 14 below.

[0033] Secondly, pull the push handles 21 on both sides of the microbubble oscillator 23 to place the microbubble oscillator 23 on the right side of the injection tube 3, and loosen the push handle 21. Since the push handle 21 is elastically connected to the microbubble oscillator 23 through the fixed spring 22, the mounting block 20 is pushed into the mounting groove 19 under the elastic force of the fixed spring 22 to complete the installation of the microbubble oscillator 23 and the injection tube 3. Before injection, push the contrast agent into the oscillation chamber 25 and use the bubbling net 24 to oscillate and bubble.

[0034] Subsequently, the linear motor 12 starts to drive the first sprocket 9 to rotate, and under the action of friction, the transmission chain 10 is pushed to drive the second sprocket 11 to rotate together. Since the upper guide screw 8 is fixedly connected to the first sprocket 9, and the lower guide screw 8 is fixedly connected to the second sprocket 11, the guide screws 8 on both sides rotate accordingly, and under the action of the thread, the screw sleeve 7 is pushed to drive the push plate 6 to move right, so that the push rod 5 drives the rubber stopper 4 to move right, thereby pushing the contrast agent inside the injection tube 3 for injection.

[0035] Finally, after the injection is completed, the threaded sleeve 27 is rotated, and under the action of the thread, the threaded sleeve 27 drives the injection needle 26 to be disassembled, so that the injection needle 26 can be replaced.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasound contrast agent microbubble oscillation push injection device, comprising an injection device body (1) and a microbubble oscillator (23), characterized in that: The injection device body (1) is provided with a syringe placement groove (2) inside, a syringe (3) is arranged inside the syringe placement groove (2), a rubber stopper (4) is arranged inside the syringe (3), a push rod (5) is arranged on the left side of the rubber stopper (4), a push plate (6) is arranged on the left side of the push rod (5), a screw sleeve (7) is arranged on the upper and lower sides of the push plate (6), a guide screw (8) is passed through the screw sleeve (7), the input end of the guide screw (8) is connected to a first sprocket (9) at the top, a transmission chain (10) is arranged on the outside of the first sprocket (9), a second sprocket (11) is arranged below the transmission chain (10), and the input end of the first sprocket (9) is connected to a linear motor (12).

2. The ultrasound contrast agent microbubble oscillation injection device according to claim 1, characterized in that: The rubber stopper (4) is fixedly connected to the push rod (5), the push rod (5) is in contact with the push plate (6), the push plate (6) is fixedly connected to the screw sleeve (7), the screw sleeve (7) is threadedly matched with the guide screw (8), the upper guide screw (8) is fixedly connected to the first sprocket (9), the lower guide screw (8) is fixedly connected to the second sprocket (11), the first sprocket (9) is chain-driven with the second sprocket (11) through a transmission chain (10), and the linear motor (12) is fixedly connected to the first sprocket (9).

3. The ultrasound contrast agent microbubble oscillation injection device according to claim 1, characterized in that: A scale line (13) is arranged on the outer wall of the injection tube (3), a fixing block (14) is arranged below the injection tube (3), a clamping block (15) is arranged above the injection tube (3), guide slide blocks (16) are arranged on both sides of the clamping block (15), a guide groove (17) is provided at a position corresponding to the guide slide block (16), and a fixing screw (18) is arranged above the clamping block (15).

4. The ultrasound contrast agent microbubble oscillation injection device according to claim 3, characterized in that: The injection tube (3) is in contact with a fixed block (14) and a clamping block (15) respectively; the clamping block (15) is fixedly connected to a guide slider (16); the guide slider (16) is matched with a guide slot (17); and the clamping block (15) is movably connected to a fixed screw (18).

5. The ultrasound contrast agent microbubble oscillation injection device according to claim 1, characterized in that: The upper and lower sides of the right side of the injection tube (3) are provided with mounting grooves (19); the right side of the injection tube (3) is provided with a microbubble oscillator (23); the upper and lower ends of the left side of the microbubble oscillator (23) are provided with push handles (21); the outer side of the push handle (21) is provided with a fixing spring (22); the side of the push handle (21) close to the injection tube (3) is provided with a mounting block (20); the inside of the microbubble oscillator (23) is provided with an oscillation chamber (25); the left side of the oscillation chamber (25) is provided with a foaming net (24).

6. The ultrasound contrast agent microbubble oscillation push injection device according to claim 5, characterized in that: The push handle (21) is elastically connected to the microbubble oscillator (23) via a fixing spring (22), the push handle (21) is fixedly connected to a mounting block (20), the mounting block (20) is matched with a mounting groove (19), and the microbubble oscillator (23) is fixedly connected to a foaming net (24).

7. The ultrasound contrast agent microbubble oscillation injection device according to claim 1, characterized in that: The right end of the injection device body (1) is provided with an external threaded portion (28), the right side of the injection device body (1) is sleeved with a threaded sleeve block (27), a sealing ring (29) is sleeved between the injection device body (1) and the threaded sleeve block (27), and an injection needle (26) is provided on the right side of the threaded sleeve block (27).

8. The ultrasound contrast agent microbubble oscillation injection device according to claim 7, characterized in that: The injection device body (1) is threadably matched with a threaded sleeve block (27) via an external threaded portion (28), and the threaded sleeve block (27) is fixedly connected to an injection needle (26).

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