Ear-nose-throat instrument cleaning device
By employing a vibration drive component in the ear, nose, and throat instrument cleaning device to achieve synchronous rotation and up-and-down vibration of the rotary washing rack, combined with the 60° reciprocating rocking of the cleaning basket, a three-dimensional composite motion is formed, solving the problems of incomplete cleaning and poor sterilization effect in existing technologies, and achieving highly efficient instrument cleaning and sterilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-20
AI Technical Summary
Existing ENT instrument cleaning devices suffer from incomplete cleaning, poor sterilization, and low efficiency. In particular, they fail to thoroughly clean instrument crevices, and the heating sterilization and cleaning processes are not coordinated, resulting in insufficient flow of the high-temperature liquid.
The system employs a vibration drive component to achieve synchronous rotation and up-and-down vibration of the swivel washing rack, combined with the 60° reciprocating rocking of the washing basket, forming a three-dimensional composite motion that integrates ultrasonic cleaning, heating sterilization, and mechanical rinsing, thereby improving cleaning efficiency and sterilization effect.
Through three-dimensional composite motion, the cleaning efficiency and sterilization effect of ear, nose and throat instruments are improved, realizing multi-directional cleaning and high-temperature sterilization of instruments, and increasing the cleaning intensity and the collision rate of cleaning solution.
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Figure CN224010666U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cleaning device technical field, more specifically, the utility model relates to ear -nose -throat instrument cleaning device. BACKGROUND
[0002] The existing ear -nose -throat department uses a large number of detection instruments, and the traditional cleaning method has low cleaning efficiency and poor cleaning effect, and the patent file with the publication number CN114887984A in the prior art discloses an ear -nose -throat department medical instrument cleaning equipment, the equipment rotates the driving wheel through motor and drives the driving shaft to rotate, so that the upper disc and impeller rotate, so that the water flow forms vortex, but the cleaning device has the following problems when using:
[0003] (1) the instrument only rotates in one direction, cannot realize multidirectional compound motion, resulting in incomplete cleaning of the instrument gap;
[0004] (2) the heating sterilization and cleaning motion are not coordinated, the flowability of high-temperature liquid is insufficient, and the sterilization effect is limited;
[0005] (3) lack of mechanical swing flushing, rely on single ultrasonic cleaning, and the efficiency is low;
[0006] Based on this, the utility model provides an ear -nose -throat instrument cleaning device to solve the technical problems in the above background art. SUMMARY
[0007] In order to overcome the deficiencies of the prior art, the utility model provides an ear -nose -throat instrument cleaning device, the utility model discloses a synchronous rotation and up-down vibration of the spin-washing frame are realized through the vibration drive part, combined with the 60° reciprocating swing of the cleaning basket, three-dimensional compound motion is formed, integrated ultrasonic cleaning, heating sterilization and mechanical flushing, improve the cleaning efficiency and sterilization effect of ear -nose -throat instrument.
[0008] In order to achieve the above object, the utility model provides the following technical scheme: an ear -nose -throat instrument cleaning device, including cleaning jar, still including cleaning basket, the upper portion of cleaning jar is installed with vibration drive part, the vibration drive part is drivenly connected with the spin-washing frame that can rotate and vibrate up and down synchronously, the swing shaft is installed on the cleaning basket, the swing shaft is rotatably installed on the spin-washing frame, the swing shaft reciprocates in 60°, the bottom of cleaning jar is installed with ultrasonic cleaner, and the outer periphery of cleaning jar is equipped with heating jacket.
[0009] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0010] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0011] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0012] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0013] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0014] As a preferred technical scheme of the utility model, the vibration driving part comprises a vibration frame, a fixing frame installed on the top of the cleaning tank, a servo motor installed on the fixing frame and a top shaft rotationally connected to the fixing frame, the output shaft end of the servo motor is in transmission connection with the top shaft through a belt, the vibration frame is slidably installed on the fixing frame, two compound vibration springs are fixed on the bottom surface of the vibration frame, one end of the compound vibration spring away from the vibration frame is in abutment with the fixing frame, a convex shaft is rotationally installed on the fixing frame, a first bevel gear is installed on the convex shaft and the top shaft, the two first bevel gears are in meshing with each other, a cam is installed on the convex shaft, a driven wheel rotationally installed on the vibration frame is in adaptive connection with the cam, a rotating shaft is installed on the top surface of the rotating washing frame, and the rotating shaft is driven by the top shaft.
[0015] Compared with the prior art, the utility model has the advantages of the following:
[0016] 1、The utility model discloses a vibration driving part realizes the synchronous rotation and the up and down vibration of the rotating washing frame, combines the 60 ° reciprocating swing of the cleaning basket, forms three -dimensional compound motion, integrates ultrasonic cleaning, heating sterilization and mechanical flushing, improves the cleaning efficiency and the sterilization effect of ear-nose-throat instrument.
[0017] 2、 The utility model discloses when carrying out the instrument cleaning of ear-nose-throat department, the instrument that can synchronous vibration state, spin state and shaking state of being cleaned in the cleaning basket occurs, through the synchronous occurrence of above -mentioned multiple effect state and the realization of multidirectional cleaning effect, to further improve the cleaning efficiency and cleaning effect of cleaning fluid to ear-nose-throat department instrument.
[0018] 3、 The utility model discloses when cleaning operation, ultrasonic cleaner produces ultrasonic cleaning frequency with setting state, through the ultrasonic cleaning frequency of ultrasonic cleaner produces, to realize the ultrasonic cleaning of ear-nose-throat department instrument, and when cleaning operation, through the setting of heating jacket, the cleaning fluid in cleaning jar is heated to the boiling state, through the boiling state of cleaning fluid, to realize the synchronous high temperature sterilization when ear-nose-throat instrument cleaning, and through the synchronous occurrence of cleaning basket upper and lower vibration state, spin state and shaking state, can cyclically change the cleaning angle and cleaning intensity of ultrasonic cleaner acting on ear-nose-throat department instrument. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the structure schematic view of ear-nose-throat instrument cleaning device of the utility model;
[0020] Figure 2 It is the structure schematic view of ear-nose-throat instrument cleaning device of the utility model; Figure 1
[0021] Figure 3 It is the structure schematic view of ear-nose-throat instrument cleaning device of the utility model; Figure 2
[0022] Figure 4 It is the structure schematic view of ear-nose-throat instrument cleaning device of the utility model;
[0023] Figure 5 It is the structure schematic view of ear-nose-throat instrument cleaning device of the utility model; Figure 4
[0024] In the drawing: 1, cleaning jar;2, spin washing frame;3, cleaning basket;4, shaking shaft;5, ultrasonic cleaner;6, heating jacket;7, vibrating stand;8, fixed frame;9, servo motor;10, top shaft;11, compound spring;12, convex shaft;13, cam;14, driven wheel;15, rotating shaft;16, mandrel;17, transmission groove;18, support;19, reverse shaft;20, reverse bevel gear;21, first bevel gear;22, second bevel gear;23, lack cone tooth;24, whole cone tooth;25, blowdown valve;26, single-chip microcomputer. DETAILED DESCRIPTION
[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0026] As shown in Figures 1 to 5 The utility model provides a ear nose throat instrument cleaning device, including cleaning jar 1, the bottom of cleaning jar 1 is communicated with a blowdown valve 25, the end surface of cleaning jar 1 is installed with singlechip 26;
[0027] Still include cleaning basket 3, the cross section of cleaning basket 3 is semicircle, and cleaning basket 3 is evenly provided with mesh hole;
[0028] The upper portion of cleaning jar 1 is installed with vibration drive part, and the vibration drive part is drivingly connected with spin washing frame 2 that can rotate synchronously and vibrate up and down;
[0029] The vibration drive part includes vibration frame 7, fixed frame 8 installed at the top of cleaning jar 1, servo motor 9 installed on fixed frame 8 and top shaft 10 rotatably connected to fixed frame 8;
[0030] The output shaft end of servo motor 9 is drivingly connected with top shaft 10 through a belt, vibration frame 7 is slidingly installed on fixed frame 8, and the bottom surface of vibration frame 7 is fixedly provided with two compound springs 11, one end of compound spring 11 away from vibration frame 7 abuts against fixed frame 8, and compound spring 11 extends and contracts along the axial direction under the constraint of fixed frame 8 to limit the vibration amplitude and direction of vibration frame 7;
[0031] A convex shaft 12 is rotatably installed on fixed frame 8, a first bevel gear 21 is installed on convex shaft 12 and top shaft 10, the two first bevel gears 21 are meshed with each other, a cam 13 is installed on convex shaft 12, and a driven wheel 14 adaptively connected with cam 13 is rotatably installed on vibration frame 7;
[0032] During cleaning operation, servo motor 9 outputs a set power output speed, after the output speed of servo motor 9, through the setting of cam 13, compound spring 11 and driven wheel 14, vibration frame 7 and spin washing frame 2 can reciprocate up and down along the axial direction of cleaning jar 1;
[0033] A rotating shaft 15 is installed on the top surface of spin washing frame 2 and is driven by top shaft 10;
[0034] A transmission groove 17 with a top end opening and slidingly connected with top shaft 10 is fixedly arranged in the inside of mandrel 16, and the cross sections of transmission groove 17 and top shaft 10 are regular polygons;
[0035] When the vibration frame 7 and the rotary washing frame 2 reciprocate up and down along the axis direction of the cleaning tank 1, the rotary washing frame 2 can rotate at a set speed during the up and down vibration through the transmission groove 17 and the regular polygonal cross section of the top shaft 10;
[0036] The rotary washing frame 2 rotates and synchronously vibrates to realize the synchronous rotary cleaning and the reciprocating cleaning in the up and down direction of the cleaning liquid to the ENT instruments in the cleaning basket 3, and the above-mentioned multi-directional and multi-effect cleaning effect is realized to effectively improve the cleaning strength and the cleaning efficiency of the ENT instruments;
[0037] The cleaning basket 3 is provided with a rocking shaft 4, which is rotatably installed on the rotary washing frame 2, and the rocking shaft 4 reciprocates within 60°.
[0038] The axis of the rocking shaft 4 is perpendicular to the axis of the rotating shaft 15.
[0039] Further comprising a core shaft 16 rotatably installed in the rotating shaft 15, the top surface of the vibration frame 7 is provided with a support 18, the support 18 is rotatably provided with a reverse shaft 19, the reverse shaft 19 is provided with a reverse bevel gear 20, the core shaft 16 and the rotating shaft 15 are both provided with a second bevel gear 22, the two second bevel gears 22 are both in transmission connection with the reverse bevel gear 20, and the two second bevel gears 22 are respectively arranged on the two sides of the reverse bevel gear 20, the bottom end of the core shaft 16 is fixedly provided with a missing tooth cone gear 23, the rocking shaft 4 is provided with a whole tooth cone gear 24, and the whole tooth cone gear 24 is in adaptive connection with the missing tooth cone gear 23.
[0040] The missing tooth cone gear 23 is fixedly provided with a missing tooth surface, the missing tooth surface is uniformly provided with tooth gears in meshing connection with the whole tooth cone gear 24, the radius of the whole tooth cone gear 24 is the same as that of the missing tooth cone gear 23, and the whole arc of the missing tooth surface is 60°.
[0041] Through the arrangement of the reverse shaft 19, the reverse bevel gear 20 and the two second bevel gears 22, the rotating shaft 15 can rotate reversely coaxially with the core shaft 16, and after the rotating shaft 15 and the core shaft 16 rotate reversely coaxially, the missing tooth surface, the whole tooth cone gear 24 and the missing tooth cone gear 23 are arranged in meshing connection, so that the cleaning basket 3 can reciprocate within a set angle.
[0042] The up and down vibration state, the rotation state and the rocking state of the cleaning basket 3 occur synchronously, and the above-mentioned multi-effect state occurrence effect is realized to further improve the cleaning collision rate and the flushing rate of the cleaning liquid to the ENT instruments.
[0043] The bottom of the cleaning tank 1 is provided with an ultrasonic cleaner 5, and the outer periphery of the cleaning tank 1 is provided with a heating jacket 6.
[0044] During the cleaning operation, the ultrasonic cleaner 5 generates ultrasonic cleaning frequency in a set state, and the ultrasonic cleaning frequency generated by the ultrasonic cleaner 5 is used to realize ultrasonic cleaning of the ear-nose-throat instrument, and during the cleaning operation, the cleaning liquid in the cleaning tank 1 is heated to a boiling state by the setting of the heating jacket 6, and the boiling state of the cleaning liquid is maintained to realize synchronous high-temperature sterilization during cleaning of the ear-nose-throat instrument, and the synchronous occurrence of the up-down vibration state, the rotation state and the shaking state of the cleaning basket 3 can cyclically change the cleaning angle and the cleaning intensity of the ultrasonic cleaner 5 acting on the ear-nose-throat instrument.
[0045] The working principle and use process of the utility model: during cleaning, the inside of the cleaning tank 1 is injected with sufficient cleaning liquid, and the ear-nose-throat instrument is placed in the cleaning basket 3, during the cleaning operation, the servo motor 9 outputs the set power output speed, after the servo motor 9 outputs the speed, the cam 13, the compound vibration spring 11 and the passive wheel 14 are set, so that the vibration frame 7 and the rotary cleaning frame 2 can reciprocate up and down along the axis direction of the cleaning tank 1, when the vibration frame 7 and the rotary cleaning frame 2 reciprocate up and down along the axis direction of the cleaning tank 1, the transmission groove 17 and the regular polygon cross section of the top shaft 10 are set, so that the rotary cleaning frame 2 can rotate at a set speed during the up-down vibration, the rotary cleaning frame 2 rotates and synchronously vibrates up and down to realize synchronous rotary cleaning and up-down reciprocating cleaning of the cleaning liquid on the ear-nose-throat instrument in the cleaning basket 3, through the realization of the above multi-directional and multi-effect cleaning effect, the cleaning intensity and cleaning efficiency of the ear-nose-throat instrument are effectively improved, through the setting of the reverse shaft 19, the reverse bevel gear 20 and the two second bevel gears 22, so that the rotating shaft 15 can rotate reversely coaxially with the mandrel 16, after the rotating shaft 15 and the mandrel 16 rotate reversely coaxially, the engagement connection setting of the whole taper gear 24 and the lack of taper gear 23 and the radian setting of the toothless surface are set, so that the cleaning basket 3 can reciprocate at a set angle, and the up-down vibration state, the rotation state and the shaking state of the cleaning basket 3 occur synchronously, through the realization of the above multi-effect state occurrence effect, the cleaning collision rate and the flushing rate of the cleaning liquid on the ear-nose-throat instrument are further improved, during the cleaning operation, the ultrasonic cleaner 5 generates ultrasonic cleaning frequency in a set state, and the ultrasonic cleaning frequency generated by the ultrasonic cleaner 5 is used to realize ultrasonic cleaning of the ear-nose-throat instrument, and during the cleaning operation, the cleaning liquid in the cleaning tank 1 is heated to a boiling state by the setting of the heating jacket 6, and the boiling state of the cleaning liquid is maintained to realize synchronous high-temperature sterilization during cleaning of the ear-nose-throat instrument, and the synchronous occurrence of the up-down vibration state, the rotation state and the shaking state of the cleaning basket 3 can cyclically change the cleaning angle and the cleaning intensity of the ultrasonic cleaner 5 acting on the ear-nose-throat instrument.
[0046] It should be noted that when the motion parameters such as the speed, amplitude, frequency and the like of the revolution rotation and the reciprocating swing of the whole tooth 4 are designed and matched, the interference can also be avoided. For example, the speed of the revolution rotation is relatively slow, and the frequency of the reciprocating swing is relatively low and the amplitude is relatively small. In the motion process, the limit positions and the motion paths of the whole tooth 24 in the two motion states do not conflict with each other, so that the synchronization of the two motions can be realized without interference.
[0047] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An ear, nose, and throat instrument cleaning device, comprising a cleaning tank (1), characterized in that: It also includes a cleaning basket (3), a vibration drive component is installed on the upper part of the cleaning tank (1), a rotating washing frame (2) that can rotate synchronously and vibrate up and down is connected to the vibration drive component, a rocker shaft (4) is installed on the cleaning basket (3), the rocker shaft (4) is rotatably installed on the rotating washing frame (2), the rocker shaft (4) reciprocates within 60°, an ultrasonic cleaner (5) is installed at the bottom of the cleaning tank (1), and a heating jacket (6) is provided on the outer periphery of the cleaning tank (1).
2. The ear, nose, and throat instrument cleaning device according to claim 1, characterized in that: The vibration drive component includes a vibration frame (7), a fixed frame (8) mounted on the top of the cleaning tank (1), a servo motor (9) mounted on the fixed frame (8), and a top shaft (10) rotatably connected to the fixed frame (8). The output shaft end of the servo motor (9) is connected to the top shaft (10) via a belt. The vibration frame (7) is slidably mounted on the fixed frame (8). Two resonant springs (11) are fixed on the bottom surface of the vibration frame (7). The end of the resonant spring (11) away from the vibration frame (7) is connected to the top shaft (10). The fixed frame (8) abuts against each other, and a convex shaft (12) is rotatably mounted on the fixed frame (8). A first bevel gear (21) is mounted on both the convex shaft (12) and the top shaft (10). The two first bevel gears (21) mesh with each other. A cam (13) is mounted on the convex shaft (12). A passive wheel (14) adapted to and connected to the cam (13) is rotatably mounted on the vibration frame (7). A rotating shaft (15) is mounted on the top surface of the swirl washing frame (2). The rotating shaft (15) is driven by the top shaft (10).
3. The ear, nose, and throat instrument cleaning device according to claim 2, characterized in that: It also includes a spindle (16) rotatably mounted in a rotating shaft (15), a bracket (18) is mounted on the top surface of the vibration frame (7), a reverse shaft (19) is rotatably mounted on the bracket (18), a reverse bevel gear (20) is mounted on the reverse shaft (19), a second bevel gear (22) is mounted on both the spindle (16) and the rotating shaft (15), the two second bevel gears (22) are both connected to the reverse bevel gear (20) in a transmission, the two second bevel gears (22) are respectively set on both sides of the reverse bevel gear (20), a missing bevel tooth (23) is fixedly mounted on the bottom end of the spindle (16), a full bevel tooth (24) is mounted on the rocker shaft (4), and the full bevel tooth (24) is adapted to be connected to the missing bevel tooth (23).
4. The ear, nose, and throat instrument cleaning device according to claim 3, characterized in that: A missing tooth surface is fixedly provided on the missing bevel tooth (23). Teeth that mesh with the whole bevel tooth (24) are evenly distributed on the missing tooth surface. The whole bevel tooth (24) and the missing bevel tooth (23) have the same radius. The arc of the missing tooth surface is 60°.
5. The ear, nose, and throat instrument cleaning device according to claim 3, characterized in that: The spindle (16) has a fixed transmission groove (17) with an open top and slidably connected to the top shaft (10). The cross-sections of the transmission groove (17) and the top shaft (10) are both regular polygons.
6. The ear, nose, and throat instrument cleaning device according to claim 1, characterized in that: The cross-section of the cleaning basket (3) is semi-circular, and the cleaning basket (3) is evenly distributed with mesh holes. The axis of the rocker shaft (4) is perpendicular to the axis of the rotating shaft (15).
7. The ear, nose, and throat instrument cleaning device according to claim 1, characterized in that: The bottom of the cleaning tank (1) is connected to a drain valve (25), and a microcontroller (26) is installed on the end face of the cleaning tank (1).
Citation Information
Patent Citations
Medical instrument cleaning equipment for otolaryngology department
CN114887984A