Extruder for medical coupling agent
The extrusion mechanism driven by a miniature rodless electric cylinder solves the problem of unstable output from medical coupling agent containers, achieving precise and uniform extrusion of the coupling agent, thus improving imaging quality and utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 董武
- Filing Date
- 2025-04-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing medical coupling agent containers deliver the fluid by manual squeezing, resulting in unstable coupling agent output and affecting imaging accuracy.
The extrusion mechanism, driven by a miniature rodless electric cylinder, combines the linear movement of the static and dynamic extrusion plates and adjusts the gap via a nut drive to achieve precise control and uniform extrusion of the coupling agent.
It achieves precise control and uniform extrusion of the coupling agent, improving imaging quality and reducing residue and waste.
Smart Images

Figure CN224307347U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device auxiliary equipment technology, and in particular to a squeezer for a medical coupling agent. Background Technology
[0002] Medical coupling agent is a medical product composed of a new generation of water-based polymer gel. It has a neutral pH value, is non-toxic and harmless to the human body, does not easily dry out or become rancid, provides clear ultrasound imaging, has suitable viscosity, is non-greasy, makes the probe easy to slide, can moisturize the skin, eliminate air on the skin surface, has good lubrication properties, and is easy to unfold; it does not corrode or damage the ultrasound probe.
[0003] In clinical settings such as ultrasound diagnosis, interventional surgery, and electrocardiogram monitoring, medical coupling agents serve as a medium for transmitting sound waves / electrical signals, and the uniformity and sterility of their coating directly affect the imaging quality.
[0004] Existing ultrasound coupling agent containers are mainly made of plastic. During use, the coupling agent is squeezed out of the outer container to be expelled into the container for the operator to use. However, the uniformity and sterility of the coupling agent coating directly determine the imaging accuracy of ultrasound detection. Existing plastic containers rely on purely manual squeezing to supply the liquid, and the lack of precise control of the force applied by the fingertips leads to unstable coupling agent output.
[0005] To address this, a compression device for medical coupling agents is proposed. Utility Model Content
[0006] In view of this, the present invention provides a squeezer for medical coupling agent to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.
[0007] The technical solution of this utility model is achieved as follows: a squeezer for a medical coupling agent, comprising...
[0008] A squeeze grip, wherein a squeeze mechanism is installed inside the squeeze grip;
[0009] The extrusion mechanism includes a miniature rodless electric cylinder, which is connected to a fixed ring with an opening on one side via a movable slider screw;
[0010] A collar, the outer wall of which is fixedly connected to the opening of a fixed ring, a movable pressing plate is fixedly connected to one side of the collar, and a nut is slidably connected inside the collar;
[0011] A fixed shaft is provided with a threaded portion on the outer wall of the collar. The inner wall of the nut is threadedly connected to the fixed shaft through the threaded portion. The other end of the fixed shaft is rotatably connected to the inner wall of the fixed ring through a bearing.
[0012] A static extrusion plate, the inner wall of which is fixedly connected to the outer wall of the bearing, and the inner wall of the dynamic extrusion plate is slidably connected to the outer wall of the fixed shaft.
[0013] More preferably, the static extrusion plate and the dynamic extrusion plate are symmetrically arranged and both are located within the fixed ring.
[0014] More preferably, the inner wall of the extrusion gripper is provided with a vertical groove, and the rear screw of the miniature rodless electric cylinder is connected to the inner wall of the vertical groove.
[0015] In a further preferred embodiment, a vertical groove is provided on one side of the outer wall of the extrusion grip, and one end of the fixed shaft passes through the vertical groove and is fixedly connected to a handle.
[0016] More preferably, the inner wall of the squeeze grip is threaded with a retaining ring for limiting the position of the coupling agent, and the bottom of the retaining ring is integrally formed with an outlet.
[0017] More preferably, a switch button is installed on the top of the extrusion gripper, and the electrical output terminal of the switch button is electrically connected to the electrical input terminal of the miniature rodless electric cylinder for controlling the start and stop of the miniature rodless electric cylinder.
[0018] The present invention has the following advantages due to the adoption of the above technical solution:
[0019] This utility model of a medical coupling agent extruder uses a miniature rodless electric cylinder to drive the linear movement of a vertical groove. The extrusion of the coupling agent is precisely controlled by the compression action of a static extrusion plate and a moving extrusion plate moving linearly downwards outside the coupling agent. Furthermore, rotating the fixed shaft drives the moving extrusion plate closer to the static extrusion plate via the displacement of a nut, allowing the symmetrical static and moving extrusion plates to engage with an adjustable gap. This ensures uniform and sealed extrusion of the coupling agent. Not only can the extrusion pressure be adjusted and set initially, but additional pressure can also be applied after a single complete extrusion by fine-tuning the gap. This effectively eliminates residual gaps in the coupling agent, improves the utilization rate of the coupling agent, and avoids contamination and waste caused by excessive extrusion.
[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a structural diagram of the present invention;
[0023] Figure 2 For the present utility model Figure 1 Cross-sectional structural diagram;
[0024] Figure 3 For the present utility model Figure 1 Internal structure diagram;
[0025] Figure 4 This is a structural diagram of the extrusion mechanism of this utility model.
[0026] Reference numerals: 11. Extrusion gripper; 12. Fixing ring; 13. Dispensing port; 14. Vertical through groove; 21. Vertical groove; 22. Miniature rodless electric cylinder; 23. Fixing ring; 24. Fixing shaft; 25. Static extrusion plate; 26. Dynamic extrusion plate; 27. Nut; 28. Threaded part; 29. Collar; 30. Switch button; 31. Handle. Detailed Implementation
[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] like Figure 1-4 As shown, this utility model embodiment provides a squeezer for a medical coupling agent, including a squeeze grip 11, and a squeezing mechanism is installed inside the squeeze grip 11;
[0030] The extrusion mechanism includes a miniature rodless electric cylinder 22, which is connected to a fixed ring 23 with an opening on one side via a movable slider screw;
[0031] The inner wall of the extrusion grip 11 is provided with a vertical groove 21. The rear screw of the miniature rodless electric cylinder 22 is connected to the inner wall of the vertical groove 21. The miniature rodless electric cylinder 22 is installed and fixed through the vertical groove 21, which limits its linear motion trajectory and ensures extrusion stability.
[0032] The inner bottom wall of the extrusion gripper 11 is threaded with a fixing ring 12 for limiting the position of the coupling agent. The bottom of the fixing ring 12 is integrally formed with an outlet 13. The outlet 13 integrally formed at the bottom serves as the only vertical channel, which not only ensures the directional extrusion of the coupling agent, but also facilitates cleaning and maintenance through the detachable structure of the fixing ring 12.
[0033] The outer wall of the collar 29 is fixedly connected to the opening of the fixed ring 23. A movable pressing plate 26 is fixedly connected to one side of the collar 29, and a nut 27 is slidably connected inside the collar 29.
[0034] The fixed shaft 24 is provided with a threaded part 28 on the outer wall of the collar 29. The inner wall of the nut 27 is threadedly connected to the fixed shaft 24 through the threaded part 28. The other end of the fixed shaft 24 is rotatably connected to the inner wall of the fixed ring 23 through a bearing.
[0035] The inner wall of the static extrusion plate 25 is fixedly connected to the outer wall of the bearing, and the inner wall of the dynamic extrusion plate 26 is slidably connected to the outer wall of the fixed shaft 24. The static extrusion plate 25 and the dynamic extrusion plate 26 are symmetrically arranged and are both located within the fixed ring 23. The coupling agent is uniformly and stably extruded vertically by balancing the bidirectional extrusion pressure.
[0036] A vertical groove 14 is provided on one side of the outer wall of the extrusion grip cylinder 11. One end of the fixed shaft 24 passes through the interior of the vertical groove 14 and is fixedly connected to a handle 31. The vertical groove 14 on the outer wall of the extrusion grip cylinder 11 provides a radial channel for the fixed shaft 24, so that the handle 31 is externally positioned, making it convenient for the operator to rotate and adjust the extrusion plate 26 with one hand, thereby realizing the rapid adjustment of the extrusion gap.
[0037] A switch button 30 is installed on the top of the extrusion grip 11. The electrical output terminal of the switch button 30 is electrically connected to the electrical input terminal of the miniature rodless electric cylinder 22, which is used to control the start and stop of the miniature rodless electric cylinder 22. The operator can hold the device with one hand and trigger the miniature rodless electric cylinder 22 to respond, thereby achieving precise start and stop control of coupling agent extrusion. The instant power-off function also prevents pollution or waste caused by excessive extrusion.
[0038] In operation, the present invention uses a fixed ring 12 threaded to the inner wall of the squeeze grip 11. The integrally formed outlet 13 at the bottom serves as the sole outlet for the coupling agent. The fixed ring 12 rotates axially through the thread to place the coupling agent bottle inside the squeeze grip 11. Reverse rotation then fixes the coupling agent bottle between the squeeze grip 11 and the fixed ring 12. To avoid interference between the fixed shaft 24 and the top of the coupling agent bottle, the height of the coupling agent bottle is lower than the static squeeze plate 25 and the moving squeeze plate 26. At this point, the coupling agent bottle is positioned between the static squeeze plate 25 and the moving squeeze plate 26. By gripping the non-vertical slot 14 on the squeeze grip 11 and pressing the switch button 30, the miniature rodless electric cylinder 22 is activated. The moving slider of the miniature rodless electric cylinder 22 drives the fixed ring 23 to move axially along the vertical groove 21. The height of the coupling agent bottle is lower than the height of the fixed ring 23, and the distance between it and the static extrusion plate 25 and the moving extrusion plate 26 is also sufficient. The synchronous driving collar 29 and the static extrusion plate 25 and the moving extrusion plate 26 are pushed towards the outlet 13 at a uniform speed. The static extrusion plate 25 and the moving extrusion plate 26 extrude the outer wall of the coupling agent. Then, the moving extrusion plate 26 is pushed down by the miniature rodless electric cylinder 22 and the static extrusion plate 25 at a uniform speed. After being compressed, the coupling agent is squeezed through the discharge port at the front end of the extrusion grip 11 and vertically squeezed out through the outlet 13 at the bottom of the fixed ring 12. The extrusion can be paused at any time by controlling the switch button 30.
[0039] During this process, the operator rotates the handle 31 at one end of the fixed shaft 24, which is rotatably connected to the fixed ring 23 via a bearing, thereby causing the fixed shaft 24 to rotate. Since the nut 27 is threadedly connected to the threaded portion 28 of the fixed shaft 24 and the nut 27 is slidably installed in the collar 29, the rotation of the fixed shaft 24 causes the nut 27 to move axially on the threaded portion 28. At this time, the moving extrusion plate 26 pushes the collar 29 through the nut 27, causing the moving extrusion plate 26 to slide on the outer wall of the fixed shaft 24. The displacement of the nut 27 drives the moving extrusion plate 26 to approach the stationary extrusion plate 25, forming an adjustable closed space.
[0040] Alternatively, after extrusion is completed, the miniature rodless electric cylinder 22 drives the fixed ring 23 to retract to the initial position, and the moving extrusion plate 26 is reset. Adjusting the space between the static extrusion plate 25 and the moving extrusion plate 26 can improve the utilization rate of the coupling agent.
[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A squeezer for a medical coupling agent, characterized in that: include A squeeze grip (11) is provided, and a squeeze mechanism is installed inside the squeeze grip (11); The extrusion mechanism includes a miniature rodless electric cylinder (22), which is connected to a fixed ring (23) with an opening on one side by a movable slider screw; A collar (29) is fixedly connected to the opening of a fixed ring (23) on its outer wall. A movable pressing plate (26) is fixedly connected to one side of the collar (29). A nut (27) is slidably connected inside the collar (29). A fixed shaft (24) is located on the outer wall of the collar (29), and a threaded part (28) is provided on the fixed shaft (24). The inner wall of the nut (27) is threadedly connected to the fixed shaft (24) through the threaded part (28). The other end of the fixed shaft (24) is rotatably connected to the inner wall of the fixed ring (23) through a bearing. Static extrusion plate (25) , The inner wall of the static extrusion plate (25) is fixedly connected to the outer wall of the bearing, and the inner wall of the dynamic extrusion plate (26) is slidably connected to the outer wall of the fixed shaft (24).
2. The extruder for a medical coupling agent according to claim 1, characterized in that: The static extrusion plate (25) and the dynamic extrusion plate (26) are symmetrically arranged and both are located within the fixed ring (23).
3. The extruder for a medical coupling agent according to claim 1, characterized in that: The inner wall of the extrusion grip (11) is provided with a vertical groove (21), and the rear screw of the miniature rodless electric cylinder (22) is connected to the inner wall of the vertical groove (21).
4. The extruder for a medical coupling agent according to claim 1, characterized in that: A vertical through groove (14) is provided on one side of the outer wall of the extrusion grip (11), and one end of the fixed shaft (24) passes through the inside of the vertical through groove (14) and is fixedly connected to a handle (31).
5. The extruder for a medical coupling agent according to claim 1, characterized in that: The inner bottom wall of the extrusion gripper (11) is threaded with a retaining ring (12) for limiting the position of the coupling agent, and the bottom of the retaining ring (12) is integrally formed with an outlet (13).
6. The extruder for a medical coupling agent according to claim 1, characterized in that: A switch button (30) is installed on the top of the extrusion grip (11). The electrical output terminal of the switch button (30) is electrically connected to the electrical input terminal of the miniature rodless electric cylinder (22) to control the start and stop of the miniature rodless electric cylinder (22).