Coupling agent pre-filling type ultrasonic probe protective sleeve

Abstract

The utility model relates to the field of medical imaging, and particularly discloses a coupling agent pre-filling type ultrasonic probe protective sleeve, which comprises a protective sleeve and an elastic ring on the protective sleeve, the protective sleeve is erected in the packaging cup body; the clamping assembly comprises a clamping arm and a clamping roller, a mounting base is fixedly arranged on the packaging cup body, one end of the clamping arm is connected with the mounting base, the other end of the clamping arm is connected with the clamping roller, and the clamping roller abuts against the elastic ring; the spraying assembly comprises a liquid storage bag, a spraying pipe and a pressing plate, the liquid storage bag and the spraying pipe are both embedded in the packaging cup body, a nozzle is arranged on the spraying pipe, and the liquid storage bag communicates with the spraying pipe; the pressing plate is arranged on the liquid storage bag, a connecting rod is fixedly arranged at one end of the pressing plate, a pressing base is fixedly arranged on the clamping arm, and the connecting rod abuts against the pressing base in a sliding mode. The device has the advantages that operation is easy, convenient and rapid, the coupling agent is automatically and evenly sprayed, and the accuracy and reliability of the measurement result of the vagina ultrasound probe are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of medical imaging, and particularly relates to a coupling agent pre-filled ultrasonic probe protective cover. Background Art

[0002] At present, as a non-invasive diagnostic tool, ultrasonic probes are widely used in the diagnosis and treatment of various diseases. Among them, the transvaginal probe is a medical instrument used for transvaginal ultrasound examination. The transvaginal probe emits and receives ultrasonic signals to obtain clearer and more detailed images, and is particularly suitable for gynecological examinations and prenatal examinations. Compared with abdominal ultrasound, transvaginal ultrasound can provide higher-resolution images because the probe is closer to the examination area, and can more accurately evaluate the conditions of the uterus, ovaries and other pelvic structures, which is more conducive to helping doctors make diagnoses. During use, the transvaginal probe needs to be in close contact with the inside of the vagina to ensure the effective conduction of sound waves and the clarity of images. For this purpose, a coupling agent (such as ultrasonic coupling gel) is usually applied between the probe and the contact surface to reduce the loss of sound wave conduction. This not only makes the operation cumbersome, but also easily causes waste and pollution of the coupling agent. In addition, direct contact between the probe and the skin may also pose a risk of cross-infection.

[0003] Therefore, the common solution at present is to cover a protective cover on the transvaginal probe. The protective cover can not only protect the transvaginal probe from damage during use, but also prevent the probe from being contaminated. Most of the existing protective covers are made of disposable plastic or rubber materials. These protective covers are usually directly put on the transvaginal probe, and the operation is simple. At the same time, for the convenience of cleaning and replacement, the protective cover is usually designed as a detachable structure.

[0004] Although this kind of protective cover solves the protection problem of the transvaginal probe to a certain extent, the protective cover still needs to be coated with a coupling agent additionally. Even if some protective covers are pre-coated with a certain amount of coupling agent, the operation steps are reduced. However, this kind of practice often has the problem of uneven coating of the coupling agent, which affects the quality and accuracy of ultrasonic imaging. Summary of the Utility Model

[0005] In order to improve the problem of uneven coating of the coupling agent on the protective cover, the utility model provides a coupling agent pre-filled ultrasonic probe protective cover.

[0006] The coupling agent pre-filled ultrasonic probe protective cover provided by the utility model adopts the following technical scheme:

[0007] A coupling agent pre-filled ultrasonic probe protective cover, comprising:

[0008] A protective cover, an elastic ring is provided at the open end of the protective cover. When the protective cover is not in use, the open end of the protective cover is wound onto the elastic ring, and a certain amount of coupling agent is pre-stored in the protective cover.

[0009] A packaging cup body, a stepped surface is provided on the packaging cup body, the stepped surface faces the open end of the packaging cup body, and the elastic ring wound with the protective cover is placed on the stepped surface, and the protective cover is erected in the packaging cup body through the elastic ring.

[0010] A clamping assembly, the clamping assembly includes a clamping arm and a clamping roller. An installation seat is fixedly provided on the packaging cup body. One end of the clamping arm is rotatably connected to the installation seat, and the other end of the clamping arm is rotatably connected to the clamping roller. The clamping roller is located above the stepped surface, and the clamping roller can abut against the elastic ring wound with the protective cover.

[0011] A spraying assembly, the spraying assembly includes a liquid storage bladder, a spray pipe and a pressing plate. The liquid storage bladder is embedded in the packaging cup body, the liquid storage bladder is filled with coupling agent, the spray pipe is embedded on the inner wall of the packaging cup body, a nozzle is provided on the spray pipe, and the liquid storage bladder is communicated with the spray pipe; the pressing plate is provided on the liquid storage bladder, a connecting rod is fixedly provided at one end of the pressing plate away from the liquid storage bladder, a pressing seat is fixedly provided on the clamping arm, and the connecting rod is in sliding abutment with the pressing seat. When the protective cover is in use, the clamping arm will swing to one side, so that the pressing plate presses the liquid storage bladder, forcing the coupling agent to be sprayed onto the protective cover through the nozzle.

[0012] By adopting the above technical solutions, the protective cover can be wound by the elastic ring when not in use. The wound protective cover is erected in the packaging cup body through the elastic ring and fixed by the clamping assembly, which can greatly simplify the operation process. When in use, only need to insert the vaginal ultrasound probe into the packaging cup body, and the protective cover can be sleeved on the vaginal ultrasound probe. At the same time, since the coupling agent is pre-set in the protective cover, there is no need to smear the coupling agent on the vaginal ultrasound probe in advance, which not only reduces the operation of medical staff, but also ensures the quality and accuracy of ultrasonic imaging. In addition, the provided spraying assembly can also utilize the action of sleeving the protective cover on the vaginal ultrasound probe to realize the automatic and uniform spraying of the coupling agent on the outer surface of the protective cover, which not only makes the operation more simple and fast, reduces the requirements for the skills of the operator, but also ensures that the acoustic coupling between the vaginal ultrasound probe and the object to be measured is more stable and uniform, reduces the measurement error caused by uneven coupling agent, and improves the accuracy and reliability of the measurement results.

[0013] Optionally, a contact portion is fixedly provided on the connecting rod, a sliding groove is formed on the pressing seat, one end of the connecting rod passes through the sliding groove, the connecting rod is slidably connected with the sliding groove, and the contact portion abuts against the pressing seat.

[0014] By adopting the above technical solution, the abutting portion and the pressing seat provided on the connecting rod are utilized, so that when the vaginal ultrasound probe is sleeved with the protective cover, the pressing plate can stably and effectively squeeze the liquid storage sac, and the coupling agent can be evenly sprayed during use. At the same time, the sliding connection structure between the connecting rod and the sliding groove makes the movement track of the pressing plate more stable, avoiding inconvenient operation caused by shaking or position deviation, and improving the stability and controllability of the use process.

[0015] Optionally, a plurality of groups of the nozzles are provided, and the nozzles are arranged evenly on the spray pipe, and the nozzles are directed at the protective cover erected in the packaging cup body.

[0016] By adopting the above technical solution, the plurality of groups of nozzles are arranged evenly, so as to ensure that the coupling agent can be evenly sprayed on the entire protective cover, avoiding poor acoustic coupling caused by lack of coupling agent in local areas, reducing the measurement error caused by uneven distribution of the coupling agent, and improving the accuracy and reliability of the measurement.

[0017] Optionally, the clamping assembly further includes a torsion spring. A rotating shaft is fixedly provided on the mounting seat. The rotating shaft is rotatably connected to one end of the clamping arm far from the clamping roller. The torsion spring is sleeved on the rotating shaft. One end of the torsion spring is fixedly connected to the mounting seat, and the other end of the torsion spring is fixedly connected to the clamping arm.

[0018] By adopting the above technical solution, the provided torsion spring provides an elastic force, enabling the clamping arm to automatically reset, which not only ensures that the protective cover can be tightly clamped when not in use, but also can be reliably unfolded and stably fixed when the protective cover is in use; it also enables the operator not to manually adjust the position of the clamping arm after use, simplifies the operation process, and improves the work efficiency.

[0019] Optionally, the pressing plate is arranged as an arc-shaped plate. A limiting seat is fixedly provided on the inner wall of the packaging cup body. The connecting rod slidably penetrates through the limiting seat.

[0020] By adopting the above technical solution, with the setting of the arc-shaped pressing plate, it can be ensured that the pressing plate is in close fit with the liquid storage sac, and the liquid storage sac can be stably squeezed during use, and the extrusion force is more evenly distributed, preventing position deviation or uneven force during the pressing process; the function of the limiting seat is to prevent the pressing plate from shifting during the pressing process, ensuring the stability of the spraying effect.

[0021] Optionally, the mounting seat is located above the step surface. An anti-detachment portion is fixedly provided on the step surface. The anti-detachment portion abuts against the elastic ring wound with the protective cover.

[0022] By adopting the above technical solution, the anti-detachment part is provided to prevent the elastic ring from detaching from the step surface during use, thereby ensuring that the protective cover can be stably fixed during use. At the same time, by arranging the mounting seat above the step surface, it can ensure that the clamping component and the anti-detachment part can better cooperate to clamp the protective cover, guarantee the stability of the vaginal ultrasound probe during the installation of the protective cover, avoid operation interruption caused by detachment, and improve work efficiency and continuity of use.

[0023] Optionally, a sealing film is provided on the packaging cup body, and the sealing film is hermetically fixed at the open end of the packaging cup body.

[0024] By adopting the above technical solution, the provided sealing film can seal the unused protective cover, prevent external contamination and volatilization of the coupling agent, ensure the cleanliness and effectiveness of the protective cover; and also extend the storage period of the coupling agent to ensure good use effect after long-term storage.

[0025] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0026] 1. By adopting the above technical solution, when the protective cover is not in use, it can be wound by the elastic ring. The wound protective cover is supported in the packaging cup body by the elastic ring and fixed by the clamping component. In this way, the operation process can be greatly simplified. When in use, only need to insert the vaginal ultrasound probe into the packaging cup body, and the protective cover can be sleeved on the vaginal ultrasound probe. At the same time, since the coupling agent is pre-set in the protective cover, there is no need to apply the coupling agent on the vaginal ultrasound probe in advance, which not only reduces the operation of medical staff, but also ensures the quality and accuracy of ultrasonic imaging. In addition, the provided spraying component can also utilize the action of the vaginal ultrasound probe sleeving the protective cover to automatically and evenly spray the coupling agent on the outer surface of the protective cover, which not only makes the operation more simple and fast, reduces the requirements for the skills of operators, but also ensures that the acoustic coupling between the vaginal ultrasound probe and the object to be measured is more stable and uniform, reduces the measurement error caused by uneven coupling agent, and improves the accuracy and reliability of the measurement result;

[0027] 2. By adopting the above technical solution, by using the abutting part and the pressing seat arranged on the connecting rod, it can be realized that when the vaginal ultrasound probe sleeved the protective cover, the pressing plate can stably and effectively squeeze the liquid storage sac, and ensure uniform spraying of the coupling agent during use. At the same time, the sliding connection structure between the connecting rod and the sliding groove makes the movement track of the pressing plate more stable, avoids operation inconvenience caused by shaking or position deviation, and improves the stability and controllability of the use process;

[0028] 3. By adopting the above technical solution, with the setting of the arc-shaped pressing plate, it can ensure that the pressing plate fits tightly with the liquid storage sac. During use, the liquid storage sac can be stably squeezed, and the extrusion force is more evenly distributed, preventing the occurrence of position deviation or uneven force during the pressing process; the function of setting the limit seat is to prevent the pressing plate from shifting during the pressing process, ensuring the stability of the spraying effect. Brief Description of the Drawings

[0029] Figure 1 is the overall structural schematic diagram of the coupling agent pre-filled ultrasonic probe protective sheath in the embodiment of the present invention;

[0030] Figure 2 is the semi-sectional structural schematic diagram of the coupling agent pre-filled ultrasonic probe protective sheath in the embodiment of the present invention;

[0031] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0032] Figure 4 is the overall structural schematic diagram of the spraying assembly of the coupling agent pre-filled ultrasonic probe protective sheath in the embodiment of the present invention;

[0033] Figure 5 is the structural schematic diagram of the clamping assembly of the coupling agent pre-filled ultrasonic probe protective sheath in the embodiment of the present invention.

[0034] Reference Signs: 1, protective sheath; 11, elastic ring;

[0035] 2, packaging cup body; 21, step surface; 22, mounting seat; 221, rotating shaft; 23, limit seat; 24, anti-disengagement part; 25, sealing film;

[0036] 3, clamping assembly; 31, clamping arm; 311, pressing seat; 312, sliding groove; 32, clamping roller; 33, torsion spring;

[0037] 4, spraying assembly; 41, liquid storage sac; 42, spray pipe; 421, nozzle; 43, pressing plate; 431, connecting rod; 432, abutting part; 433, limit block. Detailed Description of the Embodiment

[0038] The following Figures 1-5 further describes the present invention in detail with reference to the attached

[0039] The embodiment of the present invention discloses a coupling agent pre-filled ultrasonic probe protective sheath.

[0040] Refer to Figure 1, The coupling agent pre-filled type ultrasonic probe protective cover includes a protective cover 1, a packaging cup body 2, a clamping component 3 and a spraying component 4. The protective cover 1 is placed in the packaging cup body 2, and both the clamping component 3 and the spraying component 4 are installed on the packaging cup body 2. The clamping component 3 is located above the spraying component 4. The protective cover 1 is used to protect the vaginal ultrasound probe; the packaging cup body 2 is used to place the unused protective cover 1 and can protect the protective cover 1; the clamping component 3 can be used to temporarily fix the protective cover 1 in the packaging cup body 2; the spraying component 4 can evenly spray the coupling agent pre-stored in the packaging cup body 2 onto the surface of the protective cover 1.

[0041] Refer to Figure 1 and Figure 2 , In the embodiment of the present utility model, a certain amount of coupling agent is pre-stored in the protective cover 1, which can both reduce the operation steps and ensure the effective transmission of ultrasonic waves. An elastic ring 11 is provided at the open end of the protective cover 1. The elastic ring 11 can be a rubber ring and is fixedly connected to the protective cover 1. A part of the protective cover 1 can be wound onto the elastic ring 11.

[0042] Of course, in other embodiments of the present utility model, the elastic ring 11 can also be made of other materials, as long as the material has good elasticity. To meet the requirement that when the protective cover 1 is installed on the vaginal ultrasound probe, the protective cover 1 can be tightly fixed on the vaginal ultrasound probe through the elastic ring 11.

[0043] Refer to Figure 2 and Figure 3 , In the embodiment of the present utility model, a sealing film 25 is hermetically fixed at the open end of the packaging cup body 2. The sealing film 25 is made of aluminum foil paper. A step surface 21 is provided on the packaging cup body 2. The step surface 21 faces the open end of the packaging cup body 2. An anti-detachment part 24 is fixedly provided on the step surface 21. The anti-detachment part 24 is located on the side of the step surface 21 away from the inner wall of the packaging cup body 2. The elastic ring 11 wound with the protective cover 1 can be placed on the step surface 21. The cooperation between the anti-detachment part 24 and the clamping component 3 can fix the protective cover 1 in the packaging cup body 2.

[0044] Of course, in other embodiments of the present utility model, the sealing film 25 can also be made of other materials such as tin foil paper.

[0045] Refer to Figure 3 , Figure 4 and Figure 5, in the embodiment of the present utility model, there are two sets of clamping assemblies 3, and the clamping assemblies 3 are symmetrically arranged along the length direction of the packaging cup body 2. The clamping assembly 3 includes a clamping arm 31, a torsion spring 33, and a clamping roller 32. An installation seat 22 is fixedly provided on the inner wall of the packaging cup body 2, and the installation seat 22 is located above the step surface 21. A rotating shaft 221 is fixedly provided on the installation seat 22. There are two sets of clamping arms 31, and they are symmetrically distributed along the length direction of the installation seat 22. One end of the clamping arm 31 is rotatably connected to the rotating shaft 221, and the other end of the clamping arm 31 is rotatably connected to the clamping roller 32.

[0046] The torsion spring 33 is sleeved on the rotating shaft 221. There are two sets of torsion springs 33, and they are symmetrically distributed along the length direction of the installation seat 22. One end of the torsion spring 33 is fixedly connected to the installation seat 22, and the other end of the torsion spring 33 is fixedly connected to the clamping arm 31. The torsion spring 33 can make the clamping arm 31 always have a tendency to swing towards the inner wall side of the packaging cup body 2.

[0047] The clamping roller 32 is located above the step surface 21. When the elastic ring 11 wound with the protective sleeve 1 is not placed on the step surface 21, there is a gap between the clamping roller 32 and the anti - detachment portion 24, and the width of the gap is the same as the cross - sectional diameter of the elastic ring 11; when the elastic ring 11 wound with the protective sleeve 1 is placed on the step surface 21, the clamping roller 32 can be in contact with the elastic ring 11 wound with the protective sleeve 1.

[0048] Therefore, only when the protective sleeve 1 wound on the elastic ring 11 is completely unwound, can the elastic ring 11 break away from the restriction of the clamping roller 32 and the anti - detachment portion 24, so as to fix the protective sleeve 1 to the vaginal ultrasound probe; or when the vaginal ultrasound probe extends into the packaging cup body 2, applying a force towards the inner bottom wall of the packaging cup body 2 and greater than the torsion spring 33 to the vaginal ultrasound probe, forcing the elastic ring 11 to push open the clamping roller 32, and the elastic ring 11 disengages from the step surface 21.

[0049] Refer to Figure 2 、 Figure 3 and Figure 4 , in the embodiment of the present utility model, there are two sets of spraying assemblies 4, and they are symmetrically arranged along the length direction of the packaging cup body 2. The spraying assembly 4 includes a liquid storage bladder 41, a spray pipe 42, and a pressing plate 43. There are two sets of liquid storage bladders 41 and they are symmetrically arranged along the length direction of the installation seat 22. The liquid storage bladder 41 is embedded in the packaging cup body 2, and the liquid storage bladder 41 is filled with coupling agent.

[0050] The spray pipe 42 is embedded in the inner bottom wall of the packaging cup body 2. The spray pipe 42 is communicated with the liquid storage bladder 41. A nozzle 421 is provided on the spray pipe 42. There are multiple sets of nozzles 421, and the nozzles 421 are evenly arranged on the spray pipe 42. The nozzles 421 are directed at the protective sleeve 1 placed in the packaging cup body 2.

[0051] The pressing plate 43 is arranged on the liquid storage capsule 41, and the pressing plate 43 is arranged as an arc-shaped plate. A connecting rod 431 is fixedly provided on the end of the pressing plate 43 away from the liquid storage capsule 41. A limiting seat 23 is fixedly provided on the inner wall of the packaging cup body 2. The connecting rod 431 is slidably penetrated on the limiting seat 23, and a contact portion 432 is fixedly provided on the end of the connecting rod 431 away from the liquid storage capsule 41.

[0052] A pressing seat 311 is fixedly provided on one side of the clamping arm 31 close to the mounting seat 22, and a sliding groove 312 is opened on the pressing seat 311. A connecting rod 431 is fixedly provided with an abutting portion 432 at one end which passes through the sliding groove 312, and a limiting block 433 is fixedly provided at the end of one end of the abutting portion 432 of the connecting rod 431. The connecting rod 431 is slidably connected to the sliding groove 312, and the abutting portion 432 abuts against the pressing seat 311.

[0053] When the protective cover 1 needs to be put on the vaginal ultrasound probe, as the vaginal ultrasound probe gradually goes deeper into the packaging cup body 2, the protective cover 1 rolled up on the elastic ring 11 will be gradually unwound, the clamping arm 31 will swing to the side of the anti-slip portion 24, and the pressing seat 311 will drive the connecting rod 431 to move through the abutment portion 432, so that the pressing plate 43 squeezes the liquid storage capsule 41. The liquid storage capsule 41 is forced to inject the coupling agent into the nozzle 42, and finally sprayed onto the outer surface of the protective cover 1 through the nozzle 421, thereby achieving uniform spraying of the coupling agent.

[0054] The implementation principle of the coupling agent pre-filled ultrasonic probe protective cover of the embodiment of the utility model is as follows: when the vaginal ultrasound probe needs to be covered with the protective cover 1, first tear off the sealing film 25 sealed on the packaging cup body 2, and then as the vaginal ultrasound probe gradually goes deeper into the packaging cup body 2, the protective cover 1 rolled up on the elastic ring 11 will be gradually unwound, the clamping arm 31 will swing to the side of the anti-slip portion 24, the pressing seat 311 causes the pressing plate 43 to squeeze the liquid storage bag 41, and the coupling agent is sprayed onto the outer surface of the protective cover 1 through the nozzle 421. At the same time, the protective cover 1 rolled up on the elastic ring 11 is completely unwound, the elastic ring 11 is freed from the restrictions of the clamping roller 32 and the anti-slip portion 24, and the protective cover 1 is fixed to the vaginal ultrasound probe through the elastic ring 11.

[0055] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coupling agent pre-filled ultrasonic probe protective cover, characterized in that: include: A protective sleeve (1), wherein an elastic ring (11) is provided at an open end of the protective sleeve (1); when the protective sleeve (1) is not activated, the open end of the protective sleeve (1) is rolled onto the elastic ring (11); and a certain amount of coupling agent is pre-stored in the protective sleeve (1); A packaging cup body (2), wherein a step surface (21) is provided on the packaging cup body (2), the step surface (21) faces the open end of the packaging cup body (2), the elastic ring (11) with the protective cover (1) rolled up is placed on the step surface (21), and the protective cover (1) is mounted inside the packaging cup body (2) via the elastic ring (11); A clamping assembly (3), the clamping assembly (3) comprising a clamping arm (31) and a clamping roller (32), a mounting seat (22) being fixedly provided on the packaging cup body (2), one end of the clamping arm (31) being rotatably connected to the mounting seat (22), and the other end of the clamping arm (31) being rotatably connected to the clamping roller (32), the clamping roller (32) being located above the step surface (21), and the clamping roller (32) being capable of abutting against the elastic ring (11) on which the protective cover (1) is rolled up; A spraying assembly (4), the spraying assembly (4) comprising a liquid storage bag (41), a nozzle (42) and a pressing plate (43), the liquid storage bag (41) being embedded in the packaging cup body (2), the liquid storage bag (41) being filled with a coupling agent, the nozzle (42) being embedded in the inner wall of the packaging cup body (2), the nozzle (42) being provided with a nozzle (421), the liquid storage bag (41) being in communication with the nozzle (42); the pressing plate (43) being provided in the liquid storage bag (4 1), a connecting rod (431) is fixedly provided at one end of the pressing plate (43) away from the liquid storage bag (41), a pressing seat (311) is fixedly provided on the clamping arm (31), and the connecting rod (431) is in sliding contact with the pressing seat (311). When the protective cover (1) is used, the clamping arm (31) will swing to one side, thereby causing the pressing plate (43) to squeeze the liquid storage bag (41), forcing the coupling agent to be sprayed onto the protective cover (1) through the nozzle (421).

2. The coupling agent pre-filled ultrasonic probe protective cover according to claim 1, characterized in that: The connecting rod (431) is fixedly provided with an abutment portion (432), the pressing seat (311) is provided with a sliding groove (312), one end of the connecting rod (431) passes through the sliding groove (312), the connecting rod (431) is slidably connected to the sliding groove (312), and the abutment portion (432) abuts against the pressing seat (311).

3. The coupling agent pre-filled ultrasonic probe protective cover according to claim 1, characterized in that: The nozzles (421) are arranged in multiple groups, and the nozzles (421) are evenly arranged on the spray pipe (42), and the nozzles (421) are directly opposite to the protective sleeve (1) mounted inside the packaging cup body (2).

4. The coupling agent pre-filled ultrasonic probe protective cover according to claim 1, characterized in that: The clamping assembly (3) further comprises a torsion spring (33); a rotating shaft (221) is fixedly provided on the mounting seat (22); the rotating shaft (221) is rotatably connected to an end of the clamping arm (31) away from the clamping roller (32); the torsion spring (33) is sleeved on the rotating shaft (221); one end of the torsion spring (33) is fixedly connected to the mounting seat (22); and the other end of the torsion spring (33) is fixedly connected to the clamping arm (31).

5. The coupling agent pre-filled ultrasonic probe protective cover according to claim 1, characterized in that: The pressing plate (43) is configured as an arc-shaped plate, a limiting seat (23) is fixedly provided on the inner wall of the packaging cup body (2), and the connecting rod (431) is slidably disposed on the limiting seat (23).

6. The coupling agent pre-filled ultrasonic probe protective cover according to claim 4, characterized in that: The mounting seat (22) is located above the step surface (21), and an anti-slip portion (24) is fixedly provided on the step surface (21), wherein the anti-slip portion (24) abuts against the elastic ring (11) on which the protective sleeve (1) is rolled up.

7. The coupling agent pre-filled ultrasonic probe protective cover according to claim 5, characterized in that: A sealing film (25) is provided on the packaging cup body (2), and the sealing film (25) is sealingly fixed to the opening end of the packaging cup body (2).

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