Anti-infection uniform coating device for ultrasonic department

Abstract

The anti-infection uniform coating device comprises a shell, the upper portion of the shell is a storage cavity used for storing a coupling agent, an arch-shaped inner shell is arranged on the inner side of the lower portion of the shell, two bearing seats are oppositely arranged at the lower end of the shell, and a coating roller is rotationally connected between the two bearing seats; a hose groove is formed in the inner side wall of the arched inner shell, a hose used for conveying a coupling agent is arranged in the hose groove, one end of the hose communicates with the storage cavity, and the other end of the hose sequentially penetrates through the arched inner shell and the outer shell and then points to the smearing roller; a gear motor is arranged on the outer wall of the arched inner shell, and the output end of the gear motor extends into the arched inner shell and is fixedly connected with a roller rotor; the extrusion amount of the coupling agent is easy to control, the coupling agent can be evenly smeared on the skin of a patient, and the ultrasonic diagnosis result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of coating devices, and in particular to an ultrasound infection prevention and uniform coating device. Background Art

[0002] Ultrasonics is a highly applied and marginal subject. From its development over the past 100 years, it can be seen that ultrasonics has developed with the continuous deepening of its application in the fields of national defense, industrial and agricultural production, medicine, basic research, etc. It constantly draws on the contents of other disciplines such as electronics, materials science, optics, and solid physics to enrich itself. At the same time, the development of ultrasonics has provided some important devices and effective research methods for the development of these disciplines. For example, ultrasonic flaw detection and ultrasonic imaging technology have been developed by drawing on the principles and technologies of radar, and the development of ultrasound has provided important body wave and surface wave devices such as ultrasonic delay lines, filters, convolvers, and acousto-optic modulators for the development of electronics, optoelectronics, and radar technology.

[0003] The physical principle of ultrasonic diagnosis is mainly to use the reflection or transmission phenomenon generated when ultrasound propagates in the human body. When ultrasound passes through two media with different acoustic impedances, it will be reflected at their interface. The ratio of reflected energy to incident energy is called the reflection coefficient. For example, at the interface from soft tissue to bone, 50% to 70% of the energy is reflected back. In addition to reflection, a part of the energy is transmitted through the interface. The ratio of the transmitted ultrasonic energy to the incident ultrasonic energy is called the transmission coefficient. The closer the acoustic impedance of the two media is, the more ultrasonic energy is transmitted. The basic acoustic imaging system in ultrasonic diagnosis uses its reflected echo or transmitted sound to form different sound images to examine the lesion.

[0004] Before ultrasound diagnosis, a coupling agent needs to be applied to the skin of the test site to isolate the air, reduce acoustic resistance, and improve diagnostic accuracy. The coupling agent is mainly composed of a new generation of water-based polymer gel, and the main ingredients include water, glycerin, ethanol, etc. These ingredients make the coupling agent have the functions of moisturizing, lubricating and disinfecting.

[0005] In the prior art, the coupling agent is usually contained in a plastic bottle with a press pump, and the coupling agent is squeezed onto the surface of the ultrasound probe by squeezing the press pump. Then the operator uses the ultrasound probe to rub the part to be tested, and the coupling agent is applied to the skin surface of the test part before performing ultrasound diagnosis. In this coupling agent coating method, the amount of coupling agent extruded is related to the manual pressure of the staff. The amount of coupling agent extruded is difficult to control. Excessive extrusion may cause the instrument to indicate the thickness of the coupling agent layer, thereby generating errors. Excessive extrusion will make it difficult to apply evenly, resulting in uneven sound wave reflection, thereby affecting the image quality of medical examinations and the accuracy of ultrasound diagnosis results. Summary of the invention

[0006] The embodiment of the present invention provides an ultrasound infection prevention uniform coating device, which can solve the problem that the extrusion amount of coupling agent is difficult to control in the prior art. Too much extrusion may cause the instrument to indicate the thickness of the coupling agent layer, thereby causing an error. Too little extrusion will make it difficult to apply evenly, resulting in uneven reflection of sound waves, thereby affecting the image quality of medical examinations and the accuracy of ultrasound diagnostic results.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: an ultrasound anti-infection uniform coating device, comprising a shell, the upper part of the shell is a storage cavity for storing coupling agent, the inner side of the lower part of the shell is provided with an arched inner shell, the lower end of the shell is provided with two bearing seats opposite to each other, a coating roller is rotatably connected between the two bearing seats, a hose groove is provided on the inner side wall of the arched inner shell, a hose for coupling agent delivery is provided inside the hose groove, one end of the hose is connected with the storage cavity, and the other end of the hose passes through the arched inner shell and the shell in sequence and then points to the coating roller;

[0008] A reduction motor is arranged on the outer wall of the arched inner shell, and the output end of the reduction motor extends into the interior of the arched inner shell and is fixedly connected to a pair of roller rotors. When in use, the pair of roller rotors rotate to continuously squeeze and release the hose, so that a negative pressure area and a positive pressure area are formed inside the hose.

[0009] Preferably, the hose is made of materials such as silicone rubber, fluororubber, Teflon, rubber or plastic.

[0010] Preferably, the roller rotor comprises a connecting member, a connecting rod and a roller, wherein the connecting member is arranged at the output end of the reduction motor, and two ends of the connecting member are telescopically connected to two connecting rods, and the outer ends of the two connecting rods are rotatably connected to two rollers.

[0011] Preferably, a cavity is provided inside the connecting member, and a rotating shaft is rotatably connected to the side wall of the cavity opposite to the reduction motor, and the rotating shaft is provided with an internal gear located inside the cavity, and the inner ends of the two connecting rods are respectively provided with racks meshing with the internal gear, and the two racks are distributed on both sides of the internal gear.

[0012] Preferably, a large gear is provided on the rotating shaft, a sliding cavity is opened on the side wall of the cavity opposite to the reduction motor, a plurality of slots are provided in a circular array around the sliding cavity, a limit plate is slidingly connected to the inside of the sliding cavity, a first elastic member is provided between the limit plate and the inner wall of the cavity, a light rod passing through the sliding cavity is provided on the limit plate, a disc and a small gear meshing with the large gear are provided on the light rod, and a positioning rod adapted to the slot is provided on the disc.

[0013] Preferably, the outer shell and the arched inner shell are provided with avoidance grooves, and the polished rod is provided with a knob located inside the avoidance groove.

[0014] Preferably, a guide cylinder is provided on the inner wall of at least one of the bearing seats, a straight rod penetrating the guide cylinder is provided on the inner side of the guide cylinder, a slider slidably connected to the guide cylinder is provided on the straight rod, a second elastic member is provided between the slider and the inner wall of the guide cylinder, a scraper is provided at one end of the straight rod which is in close contact with the coating roller under the elastic force of the second elastic member, and an extrusion portion is provided at the other end of the straight rod.

[0015] Preferably, the housing comprises an end cover for sealing the storage cavity.

[0016] Compared with the prior art, the present invention cooperates with an outer shell, a storage chamber, an arched inner shell, a bearing seat, an applicator roller, a hose groove, a hose, a reduction motor and a roller rotor. The reduction motor drives the roller rotor to rotate, and the roller rotor continuously squeezes and releases the hose, so that a negative pressure area and a positive pressure area are formed inside the hose, so that the coupling agent in the storage chamber is transported to the applicator roller through the hose. The outer shell is held to make the applicator roller roll on the skin surface of the part to be detected to apply the coupling agent. The volume of the coupling agent extruded by the reduction motor for each rotation of the reduction motor is the product of the cross-sectional area of ​​the hose and the extrusion length. The extrusion amount of the coupling agent is easy to control, which is conducive to the uniform application of the coupling agent on the patient's skin, making the ultrasonic diagnosis result more accurate.

[0017] Compared with the prior art, the coupling agent in the storage chamber of the present invention only flows in the hose and does not contact other parts of the device, which is helpful to prevent cross infection.

[0018] Compared with the prior art, when not in use, the roller rotor of the present invention squeezes the hose to intercept the flow, thereby preventing the coupling agent in the storage chamber from contacting the external air, which is beneficial to preventing cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the arched inner shell of the present invention from the right side;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the roller rotor of the present invention from the right side;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide tube of the present invention;

[0023] Figure 5 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 6 For the present invention Figure 1 A schematic diagram of the enlarged structure in the middle.

[0025] In the figure: 1. outer shell; 101. end cover; 2. storage cavity; 3. arched inner shell; 4. reduction motor; 5. roller rotor; 501. connecting piece; 502. connecting rod; 503. roller; 6. hose groove; 7. hose; 8. bearing seat; 9. coating roller; 10. cavity; 11. internal gear; 12. rack; 13. rotating shaft; 14. large gear; 15. sliding cavity; 16. limit plate; 17. light rod; 18. first elastic member; 19. disc; 20. small gear; 21. slot; 22. positioning rod; 23. avoidance groove; 24. knob; 25. guide cylinder; 26. slider; 27. second elastic member; 28. straight rod; 29. ​​scraper; 30. extrusion part; 31. observation window. DETAILED DESCRIPTION

[0026] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 to Figure 6 As shown, an ultrasound infection prevention and uniform coating device comprises a shell 1, the upper part of the shell 1 is a storage chamber 2 for storing coupling agent, an arched inner shell 3 is arranged on the inner side of the lower part of the shell 1, two bearing seats 8 are arranged opposite to each other at the lower end of the shell 1, a coating roller 9 is rotatably connected between the two bearing seats 8, a hose groove 6 is opened on the inner side wall of the arched inner shell 3, a hose 7 for coupling agent delivery is arranged inside the hose groove 6, one end of the hose 7 is connected to the storage chamber 2, and the other end of the hose 7 passes through the arched inner shell 3 and the shell 1 in sequence and then points to the coating roller 9;

[0028] A reduction motor 4 is arranged on the outer wall of the arched inner shell 3, and the output end of the reduction motor 4 extends into the interior of the arched inner shell 3 and is fixedly connected to a pair of roller rotors 5. When in use, the pair of roller rotors 5 rotate to continuously squeeze and release the hose 7, so that a negative pressure area and a positive pressure area are formed inside the hose 7.

[0029] During specific use, the reduction motor 4 drives the roller rotor 5 to rotate, and the roller rotor 5 continuously squeezes and releases the hose 7, so that a negative pressure area and a positive pressure area are formed inside the hose 7, so that the coupling agent in the storage chamber 2 is transported to the application roller 9 through the hose 7. The outer shell 1 is held and the application roller 9 is rolled on the skin surface of the part to be detected to apply the coupling agent.

[0030] Preferably, the hose 7 is made of silicone rubber, fluororubber, Teflon, rubber or plastic. The hose 7 made of these materials has good resistance to extrusion and friction, strong deformation recovery ability, which is conducive to the transportation of coupling agent and avoids cross infection.

[0031] In order to achieve the purpose of improving the uniformity of coupling agent coating, preferably, the roller rotor 5 includes a connecting member 501, a connecting rod 502 and a roller 503, the connecting member 501 is arranged at the output end of the reduction motor 4, the two ends of the connecting member 501 are telescopically connected to two connecting rods 502, the outer ends of the two connecting rods 502 are rotatably connected to the two rollers 503, a cavity 10 is arranged inside the connecting member 501, a rotating shaft 13 is rotatably connected on the side wall of the cavity 10 opposite to the reduction motor 4, an internal gear 11 located inside the cavity 10 is arranged on the rotating shaft 13, the inner ends of the two connecting rods 502 are respectively provided with racks 12 meshing with the internal gear 11, and the two racks 12 are distributed on the inner ends of the internal gear 11. On both sides, a large gear 14 is arranged on the rotating shaft 13, a sliding cavity 15 is opened on the side wall of the cavity 10 opposite to the reduction motor 4, a plurality of slots 21 are arranged in a circular array around the sliding cavity 15, the internal sliding connection of the sliding cavity 15 is provided with a limit plate 16, a first elastic member 18 is arranged between the limit plate 16 and the inner wall of the cavity 10, a light rod 17 passing through the sliding cavity 15 is arranged on the limit plate 16, a disk 19 and a small gear 20 meshing with the large gear 14 are arranged on the light rod 17, a positioning rod 22 adapted to the slot 21 is arranged on the disk 19, an avoidance groove 23 is opened on the outer shell 1 and the arched inner shell 3, and a knob 24 located inside the avoidance groove 23 is arranged on the light rod 17.

[0032] Before applying, the coupling agent discharge speed can be adjusted as needed. When the coupling agent discharge speed needs to be increased, the knob 24 is manually pulled outward to disengage the positioning rod 22 from the slot 21 (the large gear 14 is always meshed with the small gear 20 before and after pulling), and then the knob 24 is turned forward, the knob 24 drives the small gear 20 to rotate, and the small gear 20 drives the internal gear 11 to rotate through the large gear 14. The internal gear 11 drives the two connecting rods 502 to move in the opposite direction through the two racks 12, thereby increasing the degree of squeezing of the hose 7 by the two rollers 503, increasing the pressure difference between the positive pressure area and the negative pressure area, and increasing the coupling agent discharge speed. Then, the knob 24 is loosened, so that the positioning rod 22 is reset under the elastic potential energy of the first elastic member 18 and inserted into the corresponding slot 21; when the coupling agent discharge speed needs to be reduced, the knob is manually pulled outward. 24 disengages the positioning rod 22 from the slot 21, and then rotates the knob 24 in the opposite direction, the knob 24 drives the small gear 20 to rotate, the small gear 20 drives the internal gear 11 to rotate through the large gear 14, and the internal gear 11 drives the two connecting rods 502 to move toward each other through the two racks 12, thereby reducing the squeezing degree of the two rollers 503 on the hose 7, reducing the pressure difference between the positive pressure area and the negative pressure area, and reducing the coupling agent discharge speed. Then, the knob 24 is loosened, so that the positioning rod 22 is reset and inserted into the corresponding slot 21 under the elastic potential energy of the first elastic member 18, so as to avoid excessive extrusion, which causes the instrument indication to be the coupling agent layer thickness value, thereby causing errors, and at the same time, avoid excessive extrusion, which causes difficulty in applying evenly, causing uneven sound wave reflection, thereby affecting the image quality of medical examinations and the accuracy of ultrasonic diagnosis results.

[0033] In order to achieve the purpose of avoiding cross infection, preferably, a guide cylinder 25 is provided on the inner side wall of at least one of the bearing seats 8, a straight rod 28 penetrating the guide cylinder 25 is provided on the inner side of the guide cylinder 25, a slider 26 slidably connected to the guide cylinder 25 is provided on the straight rod 28, a second elastic member 27 is provided between the slider 26 and the inner side wall of the guide cylinder 25, a scraper 29 is provided at one end of the straight rod 28 and is in close contact with the coating roller 9 under the elastic force of the second elastic member 27, and an extrusion portion 30 is provided at the other end of the straight rod 28. During the application of the coupling agent, the extrusion portion 30 is held by hand, and the extrusion portion 30 squeezes the second elastic member 27 through the slider 26 on the straight rod 28, and keeps the scraper 29 away from the coating roller 9. After the coupling agent is applied, the extrusion portion 30 can be released, so that the scraper 29 is in close contact with the coating roller 9 under the elastic potential energy of the second elastic member 27, and the coating roller 9 is rolled at the same time, so that the scraper 29 scrapes off the coupling agent remaining on the surface of the coating roller 9, thereby improving the cleanliness of the surface of the coating roller 9 and avoiding cross infection.

[0034] In order to avoid cross infection, preferably, the housing 1 includes an end cover 101 for sealing the storage cavity 2. Through the provision of the end cover 101, the coupling agent in the storage cavity 2 can be added after use, which can be reused multiple times and the coupling agent can be isolated from the outside air, thereby avoiding cross infection.

[0035] Preferably, an observation window 31 is provided on the housing 1, through which the remaining amount of the coupling agent in the storage cavity 2 can be observed in real time, and the coupling agent can be replenished in time when it is used up.

[0036] Compared with the prior art, the present invention cooperates with the outer shell 1, the storage chamber 2, the arched inner shell 3, the bearing seat 8, the application roller 9, the hose groove 6, the hose 7, the reduction motor 4 and the roller rotor 5. The reduction motor 4 drives the roller rotor 5 to rotate, and the roller rotor 5 continuously squeezes and releases the hose 7, so that a negative pressure area and a positive pressure area are formed inside the hose 7, so that the coupling agent in the storage chamber 2 is transported to the application roller 9 through the hose 7. The outer shell 1 is held and the application roller 9 is rolled on the skin surface of the part to be detected to apply the coupling agent. The volume of the coupling agent squeezed out by the reduction motor 4 for each rotation of the reduction motor 4 is the product of the cross-sectional area of ​​the hose 7 and the extrusion length. The extrusion amount of the coupling agent is easy to control, which is conducive to the uniform application of the coupling agent on the patient's skin, making the ultrasonic diagnosis result more accurate.

[0037] Compared with the prior art, the coupling agent in the storage chamber 2 of the present invention only flows in the hose 7 and does not contact other parts of the device, which is helpful to prevent cross infection.

[0038] Compared with the prior art, when not in use, the roller rotor 5 of the present invention squeezes the hose 7 to cut off the flow, thereby preventing the coupling agent in the storage chamber 2 from contacting the external air, which is beneficial to preventing cross infection.

[0039] Compared with the prior art, the present invention can adjust the coupling agent discharge speed as needed before applying through the coordinated arrangement of the internal gear 11, the rack 12, the rotating shaft 13, the large gear 14, the sliding cavity 15, the slot 21, the limit plate 16, the first elastic member 18, the light rod 17, the disk 19, the small gear 20, the positioning rod 22, the avoidance groove 23 and the knob 24, so as to avoid excessive extrusion resulting in the instrument indicating the thickness of the coupling agent layer, thereby causing an error, and at the same time avoid too little extrusion resulting in difficulty in applying evenly, causing uneven reflection of sound waves, thereby affecting the image quality of medical examinations and the accuracy of ultrasonic diagnostic results.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasound anti-infection coating device, comprising a housing (1), characterized in that: The upper part of the outer shell (1) is a storage chamber (2) for storing coupling agent, the inner side of the lower part of the outer shell (1) is provided with an arched inner shell (3), the lower end of the outer shell (1) is provided with two bearing seats (8) opposite to each other, an application roller (9) is rotatably connected between the two bearing seats (8), a hose groove (6) is provided on the inner side wall of the arched inner shell (3), a hose (7) for coupling agent delivery is provided inside the hose groove (6), one end of the hose (7) is connected to the storage chamber (2), and the other end of the hose (7) passes through the arched inner shell (3) and the outer shell (1) in sequence and then points to the application roller (9); A reduction motor (4) is arranged on the outer wall of the arched inner shell (3); the output end of the reduction motor (4) extends into the interior of the arched inner shell (3) and is fixedly connected to a pair of roller rotors (5); when in use, the pair of roller rotors (5) rotate to continuously squeeze and release the hose (7), so that a negative pressure area and a positive pressure area are formed inside the hose (7).

2. The ultrasound anti-infection coating device according to claim 1, characterized in that: The hose (7) is made of materials such as silicone rubber, fluororubber, Teflon, rubber or plastic.

3. The ultrasonic anti-infection coating device according to claim 1 or 2, characterized in that: The roller rotor (5) comprises a connecting member (501), a connecting rod (502) and a roller (503); the connecting member (501) is arranged at the output end of the reduction motor (4); two ends of the connecting member (501) are telescopically connected to two connecting rods (502); and the outer ends of the two connecting rods (502) are rotatably connected to two rollers (503).

4. The ultrasound anti-infection coating device according to claim 3, characterized in that: The connecting member (501) is provided with a cavity (10) inside, and a rotating shaft (13) is rotatably connected to the side wall of the cavity (10) opposite to the reduction motor (4), and the rotating shaft (13) is provided with an internal gear (11) located inside the cavity (10), and the inner ends of the two connecting rods (502) are respectively provided with racks (12) meshing with the internal gear (11), and the two racks (12) are distributed on both sides of the internal gear (11).

5. The ultrasound anti-infection coating device according to claim 4, characterized in that: A large gear (14) is arranged on the rotating shaft (13); a sliding cavity (15) is provided on the side wall of the cavity (10) opposite to the reduction motor (4); a plurality of slots (21) are arranged in a circular array around the sliding cavity (15); a limit plate (16) is slidably connected inside the sliding cavity (15); a first elastic member (18) is arranged between the limit plate (16) and the inner wall of the cavity (10); a light rod (17) passing through the sliding cavity (15) is arranged on the limit plate (16); a disk (19) and a small gear (20) meshing with the large gear (14) are arranged on the light rod (17); a positioning rod (22) adapted to the slot (21) is arranged on the disk (19).

6. The ultrasound anti-infection coating device according to claim 5, characterized in that: The outer shell (1) and the arched inner shell (3) are provided with an avoidance groove (23), and the polished rod (17) is provided with a knob (24) located inside the avoidance groove (23).

7. The ultrasound anti-infection coating device according to claim 6, characterized in that: A guide cylinder (25) is arranged on the inner side wall of at least one of the bearing seats (8), a straight rod (28) penetrating the guide cylinder (25) is arranged on the inner side of the guide cylinder (25), a slider (26) slidably connected to the guide cylinder (25) is arranged on the straight rod (28), a second elastic member (27) is arranged between the slider (26) and the inner side wall of the guide cylinder (25), a scraper (29) in close contact with the coating roller (9) under the elastic force of the second elastic member (27) is arranged at one end of the straight rod (28), and an extrusion portion (30) is arranged at the other end of the straight rod (28).

8. The ultrasound anti-infection coating device according to claim 7, characterized in that: The housing (1) comprises an end cover (101) for sealing the storage cavity (2).

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