Coupling agent coating device for ultrasonic department

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a coupling agent coating device for the ultrasonic department, which comprises a coupling agent storage cavity, a rotary coating cavity, a piston plate and a pressing rod, the coupling agent storage cavity is sleeved with the rotary coating cavity in a rotating mode, a piston plate is arranged in the coupling agent storage cavity in a sliding mode, the top end of the piston plate is connected with a pressing rod, the pressing rod is in transmission fit with the rotary coating cavity, and a reset spring is connected between the bottom end of the piston plate and the inner bottom wall of the coupling agent. The pressing rod is in transmission fit with the rotary coating cavity, linear downward pressing motion is converted into circumferential rotating power of the rotary coating cavity, and coupling agent discharging and uniform coating of the coating plate are synchronously carried out; after the driving cavity is loosened, the reset spring drives the component to reset, and the rotary coating cavity rotates reversely to achieve secondary material uniformizing.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically referring to a coupling agent coating device for ultrasound. Background Technology

[0002] Ultrasound examination is a commonly used non-invasive imaging diagnostic method in clinical diagnosis and treatment. Coupling agent, as an essential consumable for ultrasound testing, primarily functions to eliminate air between the probe and the patient's skin, reduce ultrasound wave reflection loss, and ensure clear ultrasound images. It is a crucial step in ensuring the accuracy of the examination. Traditional ultrasound coupling agent coating devices have the following problems:

[0003] (1) The extrusion and coating of traditional devices are two independent actions, which cannot be integrated by one hand, thus prolonging the operation time of a single person's examination and reducing the overall diagnostic and treatment efficiency. Especially in departments with a large number of outpatients, it is easy to increase the workload of medical staff.

[0004] (2) The extrusion process lacks protective constraints, and the coupling agent is prone to splashing and flowing onto non-tested skin areas or the surface of surrounding instruments. When applying, it is easy to cause local accumulation, uneven thickness or even missed application, which not only affects the quality of ultrasound images but also wastes coupling agent. Utility Model Content

[0005] This invention overcomes the shortcomings of existing technologies and provides an ultrasound coupling agent coating device. By utilizing the guiding effect of a spiral groove, the longitudinal linear downward movement of the pressure rod and transmission rod is converted into circumferential rotational torque of the coating chamber. The entire process of liquid dispensing and coating can be completed by pressing the drive chamber with one hand, significantly simplifying the operation and improving the work efficiency of medical staff. After releasing the drive chamber, the reset spring automatically resets the piston plate and pressure rod, causing the transmission rod to move upward and trigger the spiral groove to rotate the coating chamber in the opposite direction, achieving secondary coating and uniform application. This effectively optimizes the uniformity of the coupling agent coating and avoids local accumulation or missed coating problems.

[0006] The technical solution adopted by this utility model is as follows: This solution provides an ultrasound coupling agent coating device, including a coupling agent storage chamber, which serves as a storage container for the coupling agent and adopts a sealed cavity design. The bottom wall of the coupling agent storage chamber is provided with a circumferential array of spray holes to ensure that the coupling agent can be evenly dispersed to the skin area to be tested during extrusion, avoiding local accumulation. A support ring is fixedly provided along the outer edge of the bottom wall of the coupling agent storage chamber, which can stably cover the patient's skin surface to be tested during use, serving both a positioning and support function and preventing the coupling agent from splashing and leaking outwards during extrusion. A rotating coating chamber is rotatably connected to the circumferential wall of the coupling agent storage chamber and is coaxial with the coupling agent storage chamber. The rotary coating chamber is designed to rotate circumferentially around the coupling agent storage chamber. A spiral groove is formed on the circumferential wall of the rotary coating chamber, extending in a spiral shape to guide the motion of the transmission components, converting linear motion into rotational motion. A piston plate is slidably mounted inside the coupling agent storage chamber, tightly fitting against the inner wall of the chamber to form a sliding seal structure. This piston plate can slide up and down along the axial direction of the coupling agent storage chamber, achieving compression within the chamber. A pressure rod is fixedly mounted on the top wall of the piston plate, engaging with the rotary coating chamber to transmit pressing force. A drive cavity is fixedly mounted on the top wall of the pressure rod, slidingly engaging with the rotary coating chamber.

[0007] Furthermore, a transmission rod is provided on the circumferential wall of the pressure rod, and the end of the transmission rod away from the pressure rod extends into the spiral groove to realize the transmission between the linear motion of the pressure rod and the rotational motion of the rotary coating cavity.

[0008] Furthermore, a rotating groove is provided on the circumferential wall of the support ring to provide rotational clearance space for adjacent rotating components. A coating plate is fixedly provided on the lower edge of the inner circumferential wall of the rotating coating cavity. The coating plate moves through the rotating groove. The rotating groove allows the coating plate to rotate and move, and the coupling agent can be evenly pushed away during rotation. The coating plate includes a connecting plate and a cross plate. The connecting plate is fixedly connected to the lower edge of the inner circumferential wall of the rotating coating cavity, and the cross plate is symmetrically fixed on the side wall of the connecting plate.

[0009] Furthermore, a reset spring is fixedly provided at the bottom end of the piston plate, and the other end of the reset spring is fixedly connected to the inner bottom wall of the coupling agent storage cavity. The elastic potential energy of the reset spring is used to realize the automatic reset of the piston plate, the pressure rod and the pressing drive cavity after pressing.

[0010] The beneficial effects of this utility model by adopting the above structure are as follows:

[0011] (1) When pressing, the pressure rod drives the transmission rod to move vertically and linearly downward. The end of the transmission rod is embedded in the spiral groove. With the help of the spiral guide structure of the groove, the longitudinal linear thrust is accurately converted into circumferential rotational torque, which drives the rotating coating chamber to revolve smoothly around the coupling agent storage chamber, realizing seamless synchronization of liquid dispensing and coating actions, simplifying the operation steps. The entire process of pressing, dispensing, and coating can be completed with one hand, improving the work efficiency of medical staff.

[0012] (2) After the drive cavity is released, the reset spring releases its elastic potential energy to drive the piston plate and pressure rod to move upward synchronously. The transmission rod moves upward and triggers the spiral slide again, driving the rotary coating cavity to rotate in the opposite direction to reset, completing the secondary coating and further optimizing the coating uniformity.

[0013] (3) The support ring can be pre-fitted to cover the patient's skin area to be tested, and the precise coating range can be defined to avoid the coupling agent splashing into the non-test area and causing contamination. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an ultrasonic coupling agent coating device proposed in this utility model;

[0015] Figure 2 This is a perspective view of an ultrasonic coupling agent coating device proposed in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of a coupling agent coating device for ultrasound applications proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the coupling agent storage chamber proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the rotary coating cavity proposed in this utility model.

[0019] Among them, 1. Coupling agent storage chamber, 2. Feeding valve, 3. Spray hole, 4. Support ring, 5. Rotary coating chamber, 6. Coating plate, 7. Piston plate, 8. Pressure rod, 9. Drive chamber, 10. Return spring, 11. Transmission rod, 12. Spiral groove, 13. Rotary groove, 14. Connecting plate, 15. Cross plate.

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-4 This embodiment provides an ultrasonic coupling agent coating device, including a coupling agent storage chamber 1. A replenishment valve 2 is fixedly installed on the circumferential wall of the coupling agent storage chamber 1 for replenishing coupling agent into the coupling agent storage chamber 1. The replenishment valve 2 is unidirectional, allowing only coupling agent to be injected into the coupling agent storage chamber 1. The bottom wall of the coupling agent storage chamber 1 is provided with a circumferential array of spray holes 3. A support ring 4 is fixedly installed on the outer edge of the bottom wall of the coupling agent storage chamber 1. A rotating groove 13 is opened on the circumferential wall of the support ring 4. A rotating coating chamber 5 is rotatably connected to the circumferential wall of the coupling agent storage chamber 1. A coating plate 6 is fixedly installed on the lower edge of the inner circumferential wall of the rotating coating chamber 5. The coating plate 6 moves through the rotating groove 13, and the setting of the rotating groove 13 allows the coating plate 6 to rotate. The coating plate 6 includes a connecting plate 14 and a cross plate 15. The connecting plate 14 is fixedly connected to the lower edge of the inner circumferential wall of the rotary coating cavity 5. The cross plate 15 is symmetrically fixed on the side wall of the connecting plate 14. A spiral groove 12 is provided on the circumferential wall of the rotary coating cavity 5. A piston plate 7 is slidably provided in the coupling agent storage cavity 1. A pressure rod 8 is fixedly provided on the top wall of the piston plate 7. A driving cavity 9 is fixedly provided on the top wall of the pressure rod 8. The driving cavity 9 is slidably engaged with the rotary coating cavity 5. A return spring 10 is fixedly provided at the bottom end of the piston plate 7. The other end of the return spring 10 is fixedly connected to the inner bottom wall of the coupling agent storage cavity 1. A transmission rod 11 is provided on the circumferential wall of the pressure rod 8. The end of the transmission rod 11 away from the pressure rod 8 extends into the spiral groove 12.

[0023] In this embodiment, during use, medical personnel hold the drive cavity 9 and lower the entire device so that the bottom of the support ring 4 is flat and covers the patient's skin area to be tested. Then, they apply downward force to press the drive cavity 9. After the drive cavity 9 is subjected to force, it drives the pressure rod 8 to move downward in sync, thereby pushing the piston plate 7 to slide downward along the inner wall of the coupling agent storage cavity 1. At this time, the piston plate 7 compresses the bottom return spring 10, allowing it to accumulate elastic potential energy. As the piston plate 7 continues to move downward, it squeezes the sealed space inside the coupling agent storage cavity 1, increasing the pressure inside the coupling agent storage cavity 1. This causes the coupling agent stored in the coupling agent storage cavity 1 to be subjected to pressure and sprayed evenly from multiple nozzles 3 on the bottom wall of the coupling agent storage cavity 1, directly falling onto the skin area covered by the support ring 4.

[0024] During the synchronous downward movement of the pressure rod 8, the transmission rod 11 fixed to the circumferential wall of the pressure rod 8 moves downward accordingly. Since the end of the transmission rod 11 is embedded in the spiral groove 12 of the rotary coating cavity 5, the guiding effect of the spiral groove 12 converts the linear downward movement of the transmission rod 11 into the circumferential rotational power of the rotary coating cavity 5, driving the rotary coating cavity 5 to rotate smoothly around the coupling agent storage cavity 1. When the rotary coating cavity 5 rotates, the coating plate 6 on the bottom wall rotates synchronously, quickly and evenly spreading the coupling agent that has just been squeezed onto the skin surface.

[0025] Medical staff release the drive chamber 9, the reset spring 10 releases its elastic potential energy, pushes the piston plate 7 upward to reset, and drives the pressure rod 8 and drive chamber 9 to move upward synchronously. The transmission rod 11 moves upward accordingly, and drives the rotary coating chamber 5 to rotate in the opposite direction to reset through the spiral groove 12. During the rotation reset process, the coupling agent is quickly and evenly applied again to form a coupling agent coating of appropriate thickness to avoid local accumulation or missed coating. At the same time, the piston plate 7 moves upward to restore the pressure in the coupling agent storage chamber 1, the coupling agent stops spraying, the single coating is completed, and it waits for the next pressing operation.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An ultrasonic coupling agent coating device, comprising a coupling agent storage chamber (1), wherein the bottom wall of the coupling agent storage chamber (1) is provided with a circumferential array of spray holes (3), characterized in that, A support ring (4) is fixedly provided on the outer edge of the bottom wall of the coupling agent storage cavity (1). A rotary coating cavity (5) is rotatably connected to the circumferential wall of the coupling agent storage cavity (1). A spiral groove (12) is provided on the circumferential wall of the rotary coating cavity (5). A piston plate (7) is slidably provided in the coupling agent storage cavity (1). A pressure rod (8) is fixedly provided on the top wall of the piston plate (7). The pressure rod (8) is driven to cooperate with the rotary coating cavity (5). A driving cavity (9) is fixedly provided on the top wall of the pressure rod (8). The driving cavity (9) is slidably cooperated with the rotary coating cavity (5).

2. The ultrasonic coupling agent coating device according to claim 1, characterized in that: A transmission rod (11) is provided on the circumferential wall of the pressure rod (8), and the end of the transmission rod (11) away from the pressure rod (8) extends into the spiral groove (12).

3. The ultrasonic coupling agent coating device according to claim 1, characterized in that: The support ring (4) has a rotating groove (13) on its circumferential wall. The coating plate (6) is fixedly provided on the lower edge of the inner circumferential wall of the rotating coating cavity (5). The coating plate (6) moves through the rotating groove (13). The setting of the rotating groove (13) allows the coating plate (6) to rotate. The coating plate (6) includes a connecting plate (14) and a cross plate (15). The connecting plate (14) is fixedly connected to the lower edge of the inner circumferential wall of the rotating coating cavity (5). The cross plate (15) is symmetrically fixed on the side wall of the connecting plate (14).

4. The ultrasonic coupling agent coating device according to claim 1, characterized in that: The piston plate (7) is fixedly provided with a reset spring (10) at the bottom end, and the other end of the reset spring (10) is fixedly connected to the inner bottom wall of the coupling agent storage cavity (1).

Images