Coupling agent applicator with replaceable diaphragm for ultrasonic department

Abstract

The invention provides a couplant applicator with a replaceable diaphragm for the ultrasound department, and belongs to the technical field of medical equipment. Comprising a storage bottle and a shell, the output end of the storage bottle faces an unwinding roller, and a diaphragm body is wound on the unwinding roller; according to the device, through cooperation of parts such as the extrusion mechanism and through mechanical linkage of rolling of the unwinding roller and the extrusion mechanism, synchronous execution of device pushing, coupling agent automatic discharging and diaphragm uniform smearing is achieved, and medical staff do not need to manually extrude a storage bottle or do not need to additionally conduct smearing operation; the problem of low efficiency caused by step-by-step operation of feeding and smearing is avoided, rolling of the unwinding roller drives the diaphragm body to be attached to the skin in a rolling mode, a coupling agent forms a continuous and even thin film along the surface of the skin, the problems of local accumulation and uneven thickness easily caused by manual smearing are effectively solved, and therefore the working efficiency of medical workers is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a coupling agent applicator for a replaceable diaphragm in ultrasound. Background Technology

[0002] Ultrasound examination, also known as B-mode ultrasound, is a non-surgical diagnostic method. B-mode ultrasound can clearly display various cross-sectional images of organs and surrounding structures. Because the images are rich in realism and closely resemble the actual anatomical structure, ultrasound examination can make an early and accurate diagnosis.

[0003] During ultrasound examinations, a coupling agent applicator is needed to evenly cover the patient's skin surface with coupling agent. In the current operating mode, the coupling agent must first be manually applied to the patient's skin, and then evenly spread using the applicator. Furthermore, the amount of coupling agent squeezed out lacks effective control, easily resulting in excessive or insufficient application. This leads to cumbersome operation steps, requiring frequent replenishment of coupling agent and repetition of the even spreading action, thus greatly reducing work efficiency. To address this issue, we have provided a coupling agent applicator with a replaceable diaphragm for ultrasound departments to solve the above problems. Summary of the Invention

[0004] This invention provides a coupling agent applicator with a replaceable diaphragm for ultrasound departments, which solves the technical problem of ineffective control of coupling agent extrusion volume, requiring frequent re-application and repeated uniform application, thereby reducing work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A coupling agent applicator with a replaceable diaphragm for ultrasound includes a housing, a storage bottle inside the housing, a unwinding roller rotatably connected to the bottom of the housing, the output end of the storage bottle facing the unwinding roller, and a diaphragm body wound up on the unwinding roller.

[0007] The housing is equipped with an extrusion mechanism. A rotating take-up roller drives the extrusion mechanism to extrude the storage bottle. The housing is also equipped with an auxiliary component. The auxiliary component drives the extrusion mechanism to extrude the storage bottle along with the rotation speed of the take-up roller, so that the rotation speed of the take-up roller is proportional to the amount of storage bottle extruded.

[0008] Optionally, a one-way valve is installed at the input end of the storage bottle.

[0009] Optionally, the extrusion mechanism includes a movable rotating plate, and a second fixed seat is provided at the bottom of both sides of the outer shell. A second shaft is rotatably connected to the opposite side of the two second fixed seats, and a movable rotating plate is rotatably connected to the opposite side of the two second fixed seats. One end of the second shaft passes through the second fixed seat and is fixedly connected to the corresponding movable rotating plate. The unwinding roller is connected between the two second shafts.

[0010] Optionally, the diaphragm body that is wound around the outer wall of the unwinding roller has a break at the joint, and the two ends of the diaphragm body at the break are glued together, and the two ends of the unwinding roller are tapered.

[0011] Optionally, the extrusion mechanism includes limiting grooves respectively opened on both sides of the outer shell, and a cross slider is slidably connected in each of the two limiting grooves. A first spring is connected between the cross slider and the inner wall of the bottom of the limiting groove. Limiting shafts are provided on both sides of the cross slider. An extrusion plate is connected between the two limiting shafts on the same side of the two cross sliders. The extrusion plate is slidably connected to the limiting shaft. A second spring is connected between the extrusion plate and the outer wall of the cross slider, and the second spring is sleeved on the limiting shaft.

[0012] Optionally, a rope-retracting roller is provided on each of the two movable rotating plates on opposite sides, and a connecting rope is connected between the rope-retracting roller and the bottom of the cross slider on the same side.

[0013] Optionally, the extrusion mechanism further includes a first shaft, with two first shafts rotatably connected to both sides of the housing. The two first shafts on one side of the housing are located on both sides of the cross slider. One end of each first shaft passes through the housing and is fixedly connected to a trapezoidal plate. The two trapezoidal plates on the same side are symmetrical. A torsion spring is installed between the first shaft and the outer wall of the housing. Each end of the extrusion plate corresponds to one of the trapezoidal plates.

[0014] The two ends of the extrusion plate are respectively fixedly connected to abutment rods, and the abutment rods abut against the trapezoidal plate at the corresponding positions.

[0015] Optionally, the auxiliary component includes an auxiliary slide groove formed within the movable rotating plate, with two rectangular abutment plates slidably connected inside the auxiliary slide groove, a ball disposed between the two rectangular abutment plates, and a third spring connecting the rectangular abutment plates to the inner wall of the auxiliary slide groove;

[0016] The movable rotating plate has two second piston chambers, which are connected to the upper and lower ends of the auxiliary slide groove respectively. A second piston rod is slidably connected in each of the two second piston chambers. One end of the second piston rod passes through the interior of the auxiliary slide groove and is fixedly connected to the adjacent rectangular abutment plate.

[0017] Optionally, the auxiliary component further includes an annular oil delivery channel, which is installed on the second fixed base and is arranged around the outer periphery of the movable rotating plate. The annular oil delivery channel connects two oil pipes. Two first piston chambers are provided on both sides of the outer shell. The two oil pipes pass through the interior of the outer shell and are respectively connected to the two first piston chambers on the same side. There is a first piston chamber on each of the two trapezoidal plates on one side of the outer shell that are facing away from each other.

[0018] The first piston chamber is slidably connected to a first piston rod, one end of which extends through to the outside of the first piston chamber and is fixedly connected to an abutting ball that abuts against the corresponding trapezoidal plate.

[0019] Optionally, the two second piston chambers are filled with oil, one end of the second piston chamber extends to the outside of the movable rotating plate and communicates with the inside of the annular oil conveying channel. The oil in the second piston chamber enters the annular oil conveying channel under the push of the rectangular abutment plate and enters the first piston chamber through the oil pipe.

[0020] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0021] In the above solution, by setting up components such as the extrusion plate and coordinating the rolling of the unwinding roller with the mechanical linkage of the extrusion mechanism, the simultaneous execution of "device pushing - automatic discharging of coupling agent - uniform application of diaphragm" is achieved. This eliminates the need for medical staff to manually squeeze the storage bottle or perform additional application operations, avoiding the inefficiency caused by "separate operations of material supply and application". Furthermore, the rolling of the unwinding roller causes the diaphragm body to adhere and press against the skin, so that the coupling agent forms a continuous and uniform film along the skin surface. This effectively solves the problem of "local accumulation and uneven thickness" that easily occurs with manual application, thereby improving the work efficiency of medical staff.

[0022] By coordinating components such as spheres, when medical staff apply coupling agent quickly, the trapezoidal plate swings at a certain angle (this swing angle is positively correlated with the pushing speed of the medical staff; the faster the pushing speed, the larger the swing angle of the trapezoidal plate), thus synchronously increasing the squeezing pressure on the storage bottle. This allows for dynamic adaptation to the rotation speed of the unwinding roller, adjusting the amount of material discharged based on the speed, ensuring uniform application across different speed ranges, and preventing material shortages or accumulation. Consequently, medical staff can directly use an ultrasonic probe to perform ultrasound examinations on patients, improving their work efficiency.

[0023] By using components such as a second fixing seat, after the first patient has finished using the device, medical staff can pull the outermost end of the diaphragm body by hand until it reaches the break point, thus replacing the diaphragm body for the next use. Furthermore, because the ends of the unwinding roller are tapered, compared to ordinary straight rollers, it can prevent the coupling agent from overflowing onto the new diaphragm body during the rolling process, ensuring the cleanliness of the new diaphragm body and avoiding contamination of the patient's skin during secondary use. This further strengthens clinical aseptic protection and improves the overall practicality of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the present invention;

[0026] Figure 3 This is a schematic diagram showing the connection between the storage bottle and the threaded seat according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure below the cross slider of the present invention;

[0028] Figure 5 This is a cross-sectional view of the first piston chamber of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of the movable rotating plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the internal structure of the annular oil transport channel of the present invention;

[0031] Figure 8 This is an exploded view of the diaphragm body and the unwinding roller of the present invention;

[0032] Figure 9 This is a schematic diagram of the diaphragm body structure of the present invention.

[0033] [Figure Labels]

[0034] 1. Storage bottle; 2. Threaded seat; 3. Outer shell; 4. One-way valve; 5. Cross slider; 6. Limiting groove; 7. First spring; 8. First shaft; 9. Connecting rope; 10. Oil passage; 11. Discharge port; 12. Auxiliary groove; 13. Second fixed seat; 14. Diaphragm body; 15. Unwinding roller; 16. Second shaft; 17. Winding roller; 18. First piston chamber; 19. Trapezoidal plate; 20. Extrusion plate; 21. Second spring; 22. Limiting shaft; 23. Abutment rod; 24. Torsion spring; 25. Rectangular abutment plate; 26. Movable rotating plate; 27. Annular oil delivery channel; 28. First piston rod; 29. ​​Abutment ball; 30. Ball; 31. Second piston chamber; 32. Second piston rod; 33. Third spring; 141. Break. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0036] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0037] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0038] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0039] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0040] like Figures 1 to 9 As shown, an embodiment of the present invention provides a coupling agent applicator with a replaceable diaphragm for ultrasound, comprising: a storage bottle 1, with a discharge port 11 installed at the output end of the storage bottle 1 and a one-way valve 4 installed at the input end of the storage bottle 1; a housing 3 disposed outside the storage bottle 1, with a threaded seat 2 fixedly connected to the top and bottom of the housing 3 respectively, the inner side of the threaded seat 2 being threadedly connected to the outer wall of the storage bottle 1; an unwinding roller 15 disposed below the discharge port 11, with a diaphragm body 14 wound up on the outer wall of the unwinding roller 15; and a compression mechanism provided inside the housing 3 for compressing the storage bottle 1.

[0041] The extrusion mechanism includes a movable rotating plate 26, inside which is an auxiliary component for adjusting the extrusion amount of material inside the storage bottle 1. The extrusion mechanism includes limiting grooves 6 respectively opened on both sides of the outer shell 3. Cross sliders 5 are slidably connected to the inner sides of the two limiting grooves 6. A first spring 7 is installed between the cross sliders 5 and the limiting grooves 6. A set of limiting shafts 22 is provided on the side of the two cross sliders 5 that are close to each other. A set of limiting shafts 22 includes two limiting shafts 22. On one cross slider 5, the two limiting shafts 22 are symmetrically arranged at both ends of the cross slider 5. An extrusion plate 20 is connected between the two limiting shafts 22 on the same side of the two cross sliders 5. The extrusion plate 20 is slidably connected to the limiting shafts 22. A first spring 21 is sleeved on the limiting shaft 22. The two ends of the first spring 21 are respectively connected to the side wall of the cross slider 5 and the side wall of the extrusion plate 20.

[0042] like Figures 2 to 9As shown, the bottom of both sides of the outer casing 3 is fixedly connected to a second fixing seat 13. A second shaft 16 is rotatably connected inside the second fixing seat 13. An unwinding roller 15 is provided between the two second shafts 16 by a bolt assembly. The diaphragm body 14 is wound around the outer wall of the unwinding roller 15. The diaphragm body 14 that has been wound around once is broken at the joint. The two ends of the diaphragm body 14 at the broken point are glued together to facilitate tearing by the workers. The two ends of the unwinding roller 15 are tapered.

[0043] A rope-taking roller 17 is provided on one side of the second fixed seat 13. A connecting rope 9 is connected between the rope-taking roller 17 and the cross slider 5. The extrusion mechanism includes multiple first shafts 8. In this embodiment, two first shafts 8 are rotatably connected to both sides of the outer shell 3. The two first shafts 8 on one side of the outer shell 3 are located on both sides of the cross slider 5. One end of each first shaft 8 passes through the outer shell 3 and is fixedly connected to a trapezoidal plate 19. A torsion spring 24 is installed between the first shaft 8 and the outer wall of the outer shell 3. Abutting rods 23 are fixedly connected to both ends of the extrusion plate 20. The abutting rods 23 abut against the trapezoidal plate 19. A movable rotating plate 26 is rotatably connected to one side of the second fixed seat 13. One end of the second shaft 16 passes through the second fixed seat 13 and is fixedly connected to the movable rotating plate 26. One side of the movable rotating plate 26 is fixedly connected to one side of the rope-taking roller 17.

[0044] The auxiliary components include an auxiliary slide 12, which is located within the movable rotating plate 26. Two rectangular abutment plates 25 are slidably connected inside the auxiliary slide 12, with a ball 30 positioned between the two rectangular abutment plates 25. A third spring 33 is installed between each of the two rectangular abutment plates 25 and the auxiliary slide 12. The auxiliary components also include second piston chambers 31, with both the upper and lower ends of the auxiliary slide 12 connected to them. Second piston rods 32 are slidably connected within each of the two second piston chambers 31, with one end of each second piston rod penetrating into the auxiliary slide 12 and fixedly connected to the adjacent rectangular abutment plate 25. The auxiliary components also include an annular oil delivery channel 27, which is fixedly connected to one side of the second fixed seat 13 and is arranged around the outer periphery of the movable rotating plate 26. Two oil delivery ends are provided on the inner side of the channel 27. Multiple first piston chambers 18 are provided on both sides of the outer shell 3. In this embodiment, two first piston chambers 18 are provided on one side of the outer shell 3. Both oil delivery ends of the annular oil delivery channel 27 are connected to oil passage pipes 10. One end of the oil passage pipe 10 passes through the interior of the outer shell 3 and is connected to the oil guide end of the first piston chamber 18. The two first piston chambers 18 correspond to the two oil passage pipes 10. A first piston rod 28 is slidably connected inside the first piston chamber 18. One end of the first piston rod 28 passes through the exterior of the first piston chamber 18 and is fixedly connected to an abutting ball 29 that abuts against the trapezoidal plate 19. The movable rotating plate 26 is rotatably connected to the inner side of the annular oil delivery channel 27, and the oil delivery ends of the two second piston chambers 31 pass through the exterior of the movable rotating plate 26 and are connected to the interior of the annular oil delivery channel 27.

[0045] The outer wall of the storage bottle 1 is provided with a thread that matches the inner thread groove of the threaded seat 2, and the diameter of the bottom threaded seat 2 of the outer shell 3 is smaller than the diameter of the top threaded seat 2.

[0046] One-way valve 4 is the air inlet of storage bottle 1, and outlet 11 is the discharge outlet. When the bottle body of storage bottle 1 rebounds, air can be drawn into the storage bottle 1 through one-way valve 4.

[0047] Hydraulic oil is filled between the first piston rod 28 and the second piston rod 32 inside the oil pipe 10, the first piston chamber 18, the annular oil delivery channel 27, and the second piston chamber 31. When the second piston rod 32 is pushed, the first piston rod 28 can only move inside the first piston chamber 18 by being pushed by the hydraulic oil.

[0048] When coupling agent is needed, first insert the storage bottle 1 into the outer casing 3, then rotate the storage bottle 1 to screw it into the threaded seat 2. Medical personnel hold the two flat sides of the outer casing 3, place the bottom unwinding roller 15 against the patient's skin, and push the outer casing 3 along the skin. The unwinding roller 15 rolls with the pushing motion, synchronously driving the corresponding movable rotating plate 26 to rotate via two second shafts 16, thereby driving the winding roller 17 to wind up the connecting rope 9. During the winding process, the two cross sliders 5 drive the pressing plate 20 to move downwards. At this time, the abutting rod 23 forms an abutting engagement with the trapezoidal plate 19. When the pressing plate 20 drives the abutting rod 23 to slide along the inclined surface of the trapezoidal plate 19 to the flat area, it causes the two pressing plates 20 to move closer together, thereby engaging the storage agent. The storage bottle 1 creates a squeezing effect, causing the coupling agent inside the bottle to drip from the outlet 11 onto the surface of the diaphragm body 14. Subsequently, the unwinding roller 15 continuously drives the diaphragm body 14 to roll on the patient's skin surface, ultimately achieving uniform application of the coupling agent. Through the mechanical linkage between the rolling of the unwinding roller 15 and the squeezing mechanism, the simultaneous execution of "device pushing - automatic coupling agent dispensing - uniform diaphragm application" is achieved. This eliminates the need for medical staff to manually squeeze the storage bottle 1 or perform additional application operations, avoiding the inefficiency caused by "separate operations for material supply and application". Furthermore, the rolling of the unwinding roller 15 causes the diaphragm body 14 to adhere and press against the skin, forming a continuous and uniform film of coupling agent along the skin surface. This effectively solves the problem of "local accumulation and uneven thickness" that easily occurs with manual application, thereby improving the work efficiency of medical staff.

[0049] When medical staff apply the coupling agent quickly, the rotation speed of the unwinding roller 15 increases synchronously. At this time, the centrifugal force generated by the increased rotation speed of the movable rotating plate 26 drives the ball 30 to slide radially within the auxiliary chute 12. This, in turn, pushes one of the rectangular abutment plates 25, causing the second piston rod 32 to displace inside the second piston chamber 31 towards the outside of the movable rotating plate 26. This displacement causes the hydraulic oil in the second piston chamber 31 to be pressurized and flow into the annular oil channel 27, and then distributed through the oil pipe 10 to the corresponding first piston chambers 18. The hydraulic oil in the first piston chamber 18 generates thrust, driving the first piston rod 28 to move the abutment ball 29 towards the inside of the outer casing 3, thereby... The corresponding trapezoidal plate 19 is pushed to swing inwards towards the inner side of the outer shell 3 at a certain angle (this swing angle is positively correlated with the pushing speed of the medical staff; the faster the pushing speed, the larger the swing angle of the trapezoidal plate 19). After the trapezoidal plate 19 swings, its original plane is transformed into a gradually inclined surface that advances towards the inner side of the outer shell 3, which increases the displacement distance of the extrusion plate 20 relative to each other, thereby increasing the extrusion pressure on the storage bottle 1 in sync. This allows for dynamic adaptation to the rotation speed of the unwinding roller 15, adjusting the amount of material output according to the speed, and ensuring uniform coating in each speed range to avoid material shortage or accumulation. This enables medical staff to directly use an ultrasonic probe to perform ultrasound examinations on patients, improving the work efficiency of medical staff.

[0050] After the coupling agent is spread evenly, the outer shell 3 is lifted. Under the action of the first spring 7, the cross slider 5 is driven to return to its original position. At this time, under the action of the second spring 21, the squeezing plate 20 is driven to return to its initial position, releasing the restraint on the storage bottle 1, causing the storage bottle 1 to spring back. The third spring 33 drives the rectangular abutment plate 25 to draw the hydraulic oil back into the second piston chamber 31, causing the abutment ball 29 to separate from the trapezoidal plate 19. Under the action of the torsion spring 24, the trapezoidal plate 19 is driven to return to its initial angle for the next use.

[0051] After the first patient has finished using the device, medical staff can pull the outermost end of the diaphragm body 14 by hand until it reaches the break point 141 and breaks it off, thus completing the replacement of the diaphragm body 14 for the next use and improving the overall usability of the device.

[0052] Furthermore, since the unwinding roller 15 has tapered ends, the winding diaphragm body 14 also has tapered ends. This prevents the unwinding roller 15 from contacting the ends of the diaphragm body 14 with the used coupling agent that was in contact with the skin when it is being pushed. Compared with ordinary straight rollers, this prevents the coupling agent from overflowing onto the new diaphragm body 14 during the rolling process, ensuring the cleanliness of the new diaphragm body 14, avoiding contamination of the patient's skin during secondary use, further strengthening clinical aseptic protection, and thus improving the overall practicality of the equipment.

[0053] The working process of the coupling agent applicator with a replaceable diaphragm in ultrasound provided by this invention is as follows:

[0054] The outer wall of the storage bottle 1 is provided with a thread that matches the inner thread groove of the threaded seat 2, and the diameter of the bottom threaded seat 2 of the outer shell 3 is smaller than the diameter of the top threaded seat 2; the one-way valve 4 is the air inlet of the storage bottle 1, and the outlet 11 is the discharge end. When the bottle body of the storage bottle 1 rebounds, air can be drawn into the storage bottle 1 from the one-way valve 4.

[0055] When coupling agent is needed, first insert the storage bottle 1 into the outer casing 3, then rotate the storage bottle 1 to screw it into the threaded seat 2. Medical personnel hold the two flat sides of the outer casing 3, place the bottom unwinding roller 15 against the patient's skin, and push the outer casing 3 along the skin. The unwinding roller 15 rolls with the pushing motion, synchronously driving the corresponding movable rotating plate 26 to rotate via two second shafts 16, thereby driving the winding roller 17 to wind up the connecting rope 9. During the winding process, the two cross sliders 5 drive the pressing plate 20 to move downwards. At this time, the abutting rod 23 forms an abutting engagement with the trapezoidal plate 19. When the pressing plate 20 drives the abutting rod 23 to slide along the inclined surface of the trapezoidal plate 19 to the flat area, it causes the two pressing plates 20 to move closer together, thereby engaging the storage agent. The storage bottle 1 creates a squeezing effect, causing the coupling agent inside the bottle to drip from the outlet 11 onto the surface of the diaphragm body 14. Subsequently, the unwinding roller 15 continuously drives the diaphragm body 14 to roll on the patient's skin surface, ultimately achieving uniform application of the coupling agent. Through the mechanical linkage between the rolling of the unwinding roller 15 and the squeezing mechanism, the simultaneous execution of "device pushing - automatic coupling agent dispensing - uniform diaphragm application" is achieved. This eliminates the need for medical staff to manually squeeze the storage bottle 1 or perform additional application operations, avoiding the inefficiency caused by "separate operations for material supply and application". Furthermore, the rolling of the unwinding roller 15 causes the diaphragm body 14 to adhere and press against the skin, forming a continuous and uniform film of coupling agent along the skin surface. This effectively solves the problem of "local accumulation and uneven thickness" that easily occurs with manual application, thereby improving the work efficiency of medical staff.

[0056] When medical staff apply the coupling agent quickly, the rotation speed of the unwinding roller 15 increases synchronously. At this time, the centrifugal force generated by the increased rotation speed of the movable rotating plate 26 drives the ball 30 to slide radially within the auxiliary chute 12. This, in turn, pushes one of the rectangular abutment plates 25, causing the second piston rod 32 to displace inside the second piston chamber 31 towards the outside of the movable rotating plate 26. This displacement causes the hydraulic oil in the second piston chamber 31 to be pressurized and flow into the annular oil channel 27, and then distributed through the oil pipe 10 to the corresponding first piston chambers 18. The hydraulic oil in the first piston chamber 18 generates thrust, driving the first piston rod 28 to move the abutment ball 29 towards the inside of the outer casing 3, thereby... The corresponding trapezoidal plate 19 is pushed to swing inwards towards the inner side of the outer shell 3 at a certain angle (this swing angle is positively correlated with the pushing speed of the medical staff; the faster the pushing speed, the larger the swing angle of the trapezoidal plate 19). After the trapezoidal plate 19 swings, its original plane is transformed into a gradually inclined surface that advances towards the inner side of the outer shell 3, which increases the displacement distance of the extrusion plate 20 relative to each other, thereby increasing the extrusion pressure on the storage bottle 1 in sync. This allows for dynamic adaptation to the rotation speed of the unwinding roller 15, adjusting the amount of material output according to the speed, and ensuring uniform coating in each speed range to avoid material shortages or accumulation. Consequently, medical staff can directly use an ultrasonic probe to perform ultrasound examinations on patients, improving the work efficiency of medical staff.

[0057] After the coupling agent is spread evenly, the outer shell 3 is lifted. Under the action of the first spring 7, the cross slider 5 is driven to return to its original position. At this time, under the action of the second spring 21, the squeezing plate 20 is driven to return to its initial position, releasing the restraint on the storage bottle 1, causing the storage bottle 1 to spring back. The third spring 33 drives the rectangular abutment plate 25 to draw the hydraulic oil back into the second piston chamber 31, causing the abutment ball 29 to separate from the trapezoidal plate 19. Under the action of the torsion spring 24, the trapezoidal plate 19 is driven to return to its initial angle for the next use.

[0058] After the first patient has finished using the device, medical staff can pull the outermost end of the diaphragm body 14 by hand until it reaches the break point 141 and breaks it off, thus completing the replacement of the diaphragm body 14 for the next use and improving the overall usability of the device.

[0059] Furthermore, since the unwinding roller 15 has tapered ends, the winding diaphragm body 14 also has tapered ends. This prevents the unwinding roller 15 from contacting the ends of the diaphragm body 14 with the used coupling agent that was in contact with the skin when it is being pushed. Compared with ordinary straight rollers, this prevents the coupling agent from overflowing onto the new diaphragm body 14 during the rolling process, ensuring the cleanliness of the new diaphragm body 14, avoiding contamination of the patient's skin during secondary use, further strengthening clinical aseptic protection, and thus improving the overall practicality of the equipment.

[0060] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0061] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A coupling agent applicator for a replaceable diaphragm in ultrasound, characterized in that, The device includes an outer casing, a storage bottle is disposed inside the outer casing, an unwinding roller is rotatably connected to the bottom of the outer casing, the output end of the storage bottle faces the unwinding roller, and a diaphragm body is wound up on the unwinding roller. The housing is equipped with an extrusion mechanism. A rotating take-up roller drives the extrusion mechanism to extrude the storage bottle. The housing is also equipped with an auxiliary component. The auxiliary component drives the extrusion mechanism to extrude the storage bottle along with the rotation speed of the take-up roller, so that the rotation speed of the take-up roller is proportional to the amount of storage bottle extruded.

2. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 1, characterized in that, A one-way valve is installed at the input end of the storage bottle.

3. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 1, characterized in that, The extrusion mechanism includes a movable rotating plate. The bottom of both sides of the outer shell is provided with a second fixed seat. A second shaft is rotatably connected to the opposite side of the two second fixed seats. A movable rotating plate is rotatably connected to the opposite side of the two second fixed seats. One end of the second shaft passes through the second fixed seat and is fixedly connected to the corresponding movable rotating plate. The unwinding roller is connected between the two second shafts.

4. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 1, characterized in that, The diaphragm body, which is wound around the outer wall of the unwinding roller, is broken at the joint. The two ends of the diaphragm body at the break are glued together. The two ends of the unwinding roller are tapered.

5. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 3, characterized in that, The extrusion mechanism includes limiting grooves respectively opened on both sides of the outer shell. A cross slider is slidably connected in each of the two limiting grooves. A first spring is connected between the cross slider and the inner wall of the bottom of the limiting groove. Limiting shafts are provided on both sides of the cross slider. An extrusion plate is connected between the two limiting shafts on the same side of the two cross sliders. The extrusion plate is slidably connected to the limiting shaft. A second spring is connected between the extrusion plate and the outer wall of the cross slider, and the second spring is sleeved on the limiting shaft.

6. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 5, characterized in that, Two movable rotating plates are respectively provided with rope take-up rollers on opposite sides, and a connecting rope is connected between the rope take-up rollers and the bottom of the cross slider on the same side.

7. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 5, characterized in that, The extrusion mechanism further includes a first shaft. Two first shafts are rotatably connected to both sides of the housing. The two first shafts on one side of the housing are located on both sides of the cross slider. One end of each first shaft passes through the housing and is fixedly connected to a trapezoidal plate. The two trapezoidal plates on the same side are symmetrical. A torsion spring is installed between the first shaft and the outer wall of the housing. Each end of the extrusion plate corresponds to one of the trapezoidal plates. The two ends of the extrusion plate are respectively fixedly connected to abutment rods, and the abutment rods abut against the trapezoidal plate at the corresponding positions.

8. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 7, characterized in that, The auxiliary component includes an auxiliary slide groove formed inside the movable rotating plate. Two rectangular abutment plates are slidably connected inside the auxiliary slide groove. A ball is disposed between the two rectangular abutment plates. A third spring is connected between the rectangular abutment plates and the inner wall of the auxiliary slide groove. The movable rotating plate has two second piston chambers, which are connected to the upper and lower ends of the auxiliary slide groove respectively. A second piston rod is slidably connected in each of the two second piston chambers. One end of the second piston rod passes through the interior of the auxiliary slide groove and is fixedly connected to the adjacent rectangular abutment plate.

9. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 8, characterized in that, The auxiliary component also includes an annular oil delivery channel, which is installed on the second fixed base and is arranged around the outer periphery of the movable rotating plate. The annular oil delivery channel connects two oil pipes. Two first piston chambers are provided on both sides of the outer shell. The two oil pipes pass through the interior of the outer shell and are respectively connected to the two first piston chambers on the same side. There is a first piston chamber on each of the two trapezoidal plates on one side of the outer shell that are facing away from each other. The first piston chamber is slidably connected to a first piston rod, one end of which extends through to the outside of the first piston chamber and is fixedly connected to an abutting ball that abuts against the corresponding trapezoidal plate.

10. The coupling agent applicator for a replaceable diaphragm in ultrasound surgery according to claim 9, characterized in that, The two second piston chambers are filled with oil. One end of the second piston chamber extends to the outside of the movable rotating plate and communicates with the inside of the annular oil conveying channel. The oil in the second piston chamber enters the annular oil conveying channel under the push of the rectangular abutment plate and enters the first piston chamber through the oil pipe.

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