An ultrasonic probe structure

Abstract

The utility model relates to ultrasonic probe technical field especially is related to an ultrasonic probe structure. The equipment includes ultrasonic main body and probe unit, the probe unit includes bearing pipe, main probe and lateral component, one end of bearing pipe is connected with ultrasonic main body, and the other end is connected with main probe, the lateral component includes elevating frame and lateral probe. The ultrasonic probe structure provided by the utility model moves along the pulp cavity when using, and the main probe is aligned with the pulp cavity surface and is assisted in cleaning, when the main probe cannot be aligned with the pulp cavity surface, the ultrasonic main body drives the lateral probe to align with the pulp cavity surface and is assisted in cleaning. The problem that the treatment effect of ultrasonic is influenced because the ultrasonic probe can only produce ultrasonic wave in the front part of the probe, and the shape of the pulp cavity cleaning area is irregular, and part of the pulp cavity area is difficult to be in the front part of the probe.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic probe technology, and in particular to an ultrasonic probe structure. Background Technology

[0002] In the medical field, ultrasonic debridement has become a very important treatment method. Ultrasonic debridement uses low-frequency ultrasound waves to generate a "cavitation effect" in the irrigation jet, which specifically cavitates and breaks down the bacterial biofilm formed in the joint cavity. It generates a shearing force at the solid-liquid interface to remove deep bacteria, viruses and fungi in the joint cavity. By combining surgical debridement with low-frequency ultrasound technology, the clearance rate of wound bacteria and biofilms during surgery can be improved.

[0003] However, because the ultrasound probe can only generate ultrasound waves at the front of the probe, and the shape of the medullary cavity cleaning area is irregular, some medullary cavity areas are difficult to be located at the front of the probe, thus affecting the therapeutic effect of ultrasound. Utility Model Content

[0004] This invention provides an ultrasound probe structure to solve the problem that ultrasound probes can only generate ultrasound waves at the front of the probe, and the irregular shape of the medullary cavity cleaning area makes it difficult for some medullary cavity areas to be located at the front of the probe, thus affecting the therapeutic effect of ultrasound.

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] An ultrasonic probe structure:

[0007] Includes the ultrasound body and probe unit;

[0008] The probe unit includes a carrier tube, a main probe, and lateral components; one end of the carrier tube is connected to the ultrasound body, and the other end is connected to the main probe;

[0009] The lateral component includes a lifting frame and a lateral probe; the lifting frame is inserted into the bearing tube and is slidably connected to the bearing tube; the lateral probe is inserted into the lifting frame;

[0010] The lifting frame moves the lateral probe along the support tube, thereby changing the distance between the main probe and the lateral probe.

[0011] Furthermore, the lateral component also includes a limiting bolt; the bearing tube has a limiting slot extending along the length of the bearing tube; the limiting bolt is threaded through the lifting frame, the limiting bolt is inserted into the limiting slot, and moves along the length of the limiting slot.

[0012] Furthermore, the probe unit also includes a distance scale; the carrier tube also includes a distance slot; the distance scale is inserted into the carrier tube; the lateral component also includes a distance pointer; the distance pointer is connected to the lifting frame, the distance pointer is inserted into the distance slot and moves along the distance slot; the lifting frame drives the distance pointer to move along the distance slot, so that the distance pointer moves along the length direction of the distance scale.

[0013] Furthermore, the main probe includes a mounting base, a vertical probe, and a flexible end cap; the mounting base is connected to the carrier tube; one end of the vertical probe is inserted into the mounting base, and the other end is inserted into the flexible end cap.

[0014] Furthermore, the probe unit also includes a compensation probe; the compensation probe is tilted and inserted into the carrier tube; the main probe, the compensation probe, and the lateral probe are opened and closed in sequence so that the ultrasonic waves cover the local area of ​​the medullary cavity without gaps, and the ultrasonic waves emitted by the compensation probe fill the gaps between the ultrasonic waves emitted by the main probe and the lateral probe.

[0015] Furthermore, it also includes a rotary unit; the rotary unit includes a motor mounting bracket and a drive motor; the motor mounting bracket is inserted into the support tube; the housing of the drive motor is inserted into the motor mounting bracket, and its rotation axis is connected to the ultrasound body; the drive motor drives the probe unit to rotate relative to the ultrasound body through the motor mounting bracket.

[0016] Furthermore, the carrier tube is connected to at least a plurality of the lateral members; the plurality of lateral probes are evenly distributed around the axis of the carrier tube and located at different heights.

[0017] Furthermore, it also includes a disinfection unit; the disinfection unit includes a disinfection cylinder; the disinfection cylinder is filled with disinfectant; the ultrasonic body drives the probe unit to be inserted into the disinfection cylinder, and the probe unit outputs ultrasonic waves to cavitate the disinfectant, so as to remove impurities from the surface of the probe unit.

[0018] Furthermore, the disinfection unit also includes a reflective arc plate; the reflective arc plate is connected to the inner wall of the disinfection cylinder; the ultrasonic waves output by the probe unit are reflected by the reflective arc plate, and the reflection direction is towards the probe unit.

[0019] Furthermore, the disinfection unit also includes an inlet pipe and an outlet pipe; the inlet pipe is connected to the inlet of the disinfection cylinder; the outlet pipe is connected to the outlet of the disinfection cylinder; when the probe unit is cleaned, the inlet pipe inputs disinfectant into the disinfection cylinder, and the outlet pipe draws out the disinfectant from the disinfection cylinder, so that the amount of disinfectant in the disinfection cylinder remains unchanged.

[0020] The beneficial effects of the ultrasonic probe structure in this invention are analyzed as follows:

[0021] The device includes an ultrasound main body and a probe unit; the probe unit includes a support tube, a main probe, and a lateral component; one end of the support tube is connected to the ultrasound main body, and the other end is connected to the main probe; the lateral component includes a lifting frame and a lateral probe; the lifting frame is inserted into the support tube and slidably connected to it; the lateral probe is inserted into the lifting frame; the lifting frame moves the lateral probe along the support tube, thereby changing the distance between the main probe and the lateral probe. 。

[0022] The ultrasound probe structure provided by this utility model allows the ultrasound body to move the probe unit along the medullary cavity during use, so that the main probe is aligned with the medullary cavity surface for auxiliary cleaning. When the medullary cavity surface cannot be aligned with the main probe, the ultrasound body moves the lateral probe to align with the medullary cavity surface for auxiliary cleaning, which improves the adaptability to irregular medullary cavity cleaning areas and thus enhances the therapeutic effect of ultrasound.

[0023] In addition, the distance between the lateral probe and the main probe is determined according to the inner diameter of the medullary cavity. The lifting frame moves the lateral probe along the support tube to change the distance between the lateral probe and the main probe, thereby avoiding mutual interference between the lateral probe and the main probe. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the ultrasonic probe structure provided in this embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the probe unit in the ultrasonic probe structure provided in this embodiment of the utility model;

[0027] Figure 3 An exploded three-dimensional structural diagram of the probe unit in the ultrasonic probe structure provided in this embodiment of the utility model;

[0028] Figure 4 A schematic diagram of the lateral component in the ultrasonic probe structure provided by this embodiment of the utility model;

[0029] Figure 5An exploded three-dimensional structural diagram of the rotating unit in the ultrasonic probe structure provided in this embodiment of the invention.

[0030] Figure 6 An exploded three-dimensional structural diagram of the disinfection unit in the ultrasonic probe structure provided in this embodiment of the invention.

[0031] icon:

[0032] 100-Ultrasound body; 200-Probe unit; 210-Bearing tube; 211-Limiting slot; 212-Projection slot; 213-Distance slot; 220-Main probe; 221-Mounting base; 222-Vertical probe; 223-Flexible end cap; 230-Lateral component; 231-Lifting frame; 232-Lateral probe; 233-Limiting bolt; 234-Distance pointer; 240-Compensation probe; 250-Distance scale; 300-Rotation unit; 310-Motor mounting bracket; 320-Drive motor; 330-Adapter ring; 340-Rotation ring; 350-Drive pin; 360-Follow-up socket; 400-Disinfection unit; 410-Disinfection cylinder; 420-Reflective arc plate; 430-Inlet pipe; 440-Drain pipe. Detailed Implementation

[0033] Because ultrasound probes can only generate ultrasound waves at the front of the probe, and the shape of the medullary cavity cleaning area is irregular, some areas of the medullary cavity are difficult to be located at the front of the probe, thus affecting the therapeutic effect of ultrasound.

[0034] In view of this, this solution provides an ultrasonic probe structure, including an ultrasonic body 100 and a probe unit 200.

[0035] The following combination Figures 1-6 The structure and shape of the ultrasonic probe provided in this embodiment will be described in detail:

[0036] The probe unit 200 includes a support tube 210, a main probe 220, and a lateral component 230. One end of the support tube 210 is connected to the ultrasound body 100, and the other end is connected to the main probe 220. The lateral component 230 includes a lifting frame 231 and a lateral probe 232. The lifting frame 231 is inserted into the support tube 210 and is slidably connected to the support tube 210. The lateral probe 232 is inserted into the lifting frame 231. The lifting frame 231 drives the lateral probe 232 to move along the support tube 210, so as to change the distance between the main probe 220 and the lateral probe 232.

[0037] To ensure effective flushing, the ultrasonic unit 100 also includes a main flushing tube and side flushing tubes:

[0038] Specifically, the outlet of the main flushing tube is in the same direction as the output of the main probe 220. The disinfectant output from the main flushing tube is cavitated by the ultrasonic waves output from the main probe 220. The outlet of the side flushing tube is in the same direction as the output of the side probe 232 and moves with the side probe 232. The disinfectant output from the side flushing tube is cavitated by the ultrasonic waves output from the side probe 232.

[0039] In this embodiment, the ultrasound body 100 drives the probe unit 200 to move along the medullary cavity so that the main probe 220 is aligned with the medullary cavity surface for auxiliary cleaning. When the medullary cavity surface cannot be aligned with the main probe 220, the ultrasound body 100 drives the lateral probe 232 to align with the medullary cavity surface for auxiliary cleaning, which improves the adaptability to irregular medullary cavity cleaning areas and thus enhances the therapeutic effect of ultrasound.

[0040] In addition, the distance between the lateral probe 232 and the main probe 220 is determined according to the inner diameter of the medullary cavity. The lifting frame 231 drives the lateral probe 232 to move along the bearing tube 210 so as to change the distance between the lateral probe 232 and the main probe 220, thereby avoiding mutual interference between the lateral probe 232 and the main probe 220.

[0041] More details regarding the shape and structure of probe unit 200:

[0042] The lateral component 230 also includes a limiting bolt 233; the bearing tube 210 is provided with a limiting slot 211 extending along the length of the bearing tube 210; the limiting bolt 233 is threaded through the lifting frame 231, the limiting bolt 233 is inserted into the limiting slot 211, and moves along the length of the limiting slot 211.

[0043] To determine the distance between the main probe 220 and the side probe 232:

[0044] The probe unit 200 also includes a distance scale 250; the carrier tube 210 also includes a distance slot 213; the distance scale 250 is inserted into the carrier tube 210; the lateral component 230 also includes a distance pointer 234; the distance pointer 234 is connected to the lifting frame 231, the distance pointer 234 is inserted into the distance slot 213 and moves along the distance slot 213; the lifting frame 231 drives the distance pointer 234 to move along the distance slot 213 so that the distance pointer 234 moves along the length direction of the distance scale 250.

[0045] To avoid damage to healthy tissues within the medullary cavity during operation, the main probe 220 includes a mounting base 221, a vertical probe 222, and a flexible end cap 223.

[0046] Specifically, the mounting base 221 is connected to the bearing tube 210; one end of the vertical probe 222 is inserted into the mounting base 221, and the other end is inserted into the flexible end cap 223.

[0047] To prevent the carrier tube 210 from obstructing the lateral probe 232:

[0048] The carrier tube 210 has a projection slot 212 extending along the length of the carrier tube 210; the lateral probe 232 is aligned with the projection slot 212; when the lateral member 230 moves along the carrier tube 210, the lateral probe 232 moves along the projection slot 212, thereby preventing the carrier tube 210 from blocking the lateral probe 232.

[0049] In this embodiment, the carrier tube 210 drives the distance pointer 234 to move along the distance slot 213, so that the distance pointer 234 moves along the length direction of the distance scale 250. The distance between the main probe 220 and the side probe 232 is determined according to the value pointed to by the distance pointer 234 on the distance scale 250. At the same time, the carrier tube 210 drives the limiting bolt 233 to move along the limiting slot 211. After the main probe 220 and the side probe 232 reach the set distance, the limiting bolt 233 is rotated, and the limiting bolt 233 fixes the carrier tube 210 and the lifting frame 231, thereby fixing the side probe 232 at the set distance of the main probe 220.

[0050] In addition, when the main probe 220 collides with the medullary cavity, the flexible end cap 223 buffers and reduces the impact force generated by the collision through its own elastic deformation, thereby reducing the damage caused by the main probe 220 colliding with the medullary cavity.

[0051] To cover and clean the medullary cavity, the probe unit 200 also includes a compensation probe 240.

[0052] Specifically, the compensation probe 240 is inserted at an angle into the carrier tube 210; the main probe 220, the compensation probe 240 and the lateral probe 232 are opened and closed in sequence so that the ultrasonic waves cover the local area of ​​the medullary cavity without gaps, and the ultrasonic waves emitted by the compensation probe 240 fill the gaps between the ultrasonic waves emitted by the main probe 220 and the lateral probe 232.

[0053] In this embodiment, the ultrasound body 100 moves the probe unit 200 to the medullary cavity cleaning position. Then, the main probe 220, the compensation probe 240, and the lateral probe 232 are turned on and off in sequence. The ultrasound emitted by the compensation probe 240 fills and covers the gaps between the ultrasound emitted by the main probe 220 and the lateral probe 232, so that the ultrasound emitted by the main probe 220, the compensation probe 240, and the lateral probe 232 can cover the local area of ​​the medullary cavity without gaps without interfering with each other.

[0054] To facilitate the adjustment of the position of the lateral probe 232, a rotary unit 300 is also included.

[0055] Specifically, the rotary unit 300 includes a motor mounting bracket 310 and a drive motor 320; the motor mounting bracket 310 is inserted into the support tube 210; the housing of the drive motor 320 is inserted into the motor mounting bracket 310, and its rotation shaft is connected to the ultrasonic body 100; the drive motor 320 drives the probe unit 200 to rotate relative to the ultrasonic body 100 through the motor mounting bracket 310.

[0056] To improve the connection strength of the rotary unit 300, the rotary unit 300 also includes an adapter ring 330 and a rotary ring 340.

[0057] Specifically, the adapter ring 330 is fitted onto the carrier tube 210 and connected to the rotating ring 340; the rotating ring 340 is fitted onto the ultrasonic body 100 and rotatably connected to the ultrasonic body 100; the drive motor 320 drives the carrier tube 210 to rotate through the motor mounting bracket 310, and the carrier tube 210 drives the rotating ring 340 to rotate along the ultrasonic body 100 through the adapter ring 330. The stress borne by the probe unit 200 during operation is transmitted to the ultrasonic body 100 through the adapter ring 330 and the rotating ring 340, thereby slowing down the wear rate of the drive motor 320.

[0058] To facilitate maintenance of the ultrasonic probe mechanism, the rotary unit 300 also includes a drive pin 350 and a follower socket 360.

[0059] Specifically, the drive pin 350 and the drive motor 320 are mounted on a rotating shaft assembly. The drive pin 350 is inserted into the follower socket 360 and is slidably connected to the follower socket 360. The follower socket 360 is connected to the ultrasonic body 100. The drive motor 320 drives the follower socket 360 to rotate through the drive pin 350, and the follower socket 360 drives the ultrasonic body 100 to rotate. During maintenance, the drive motor 320 drives the drive pin 350 to move along the follower socket 360 so that the drive pin 350 is separated from the follower socket 360.

[0060] In this embodiment, the drive motor 320 drives the carrier tube 210 to rotate through the motor mounting bracket 310. The carrier tube 210 drives the lateral probe 232 to rotate in the medullary cavity, so that the lateral probe 232 is aligned with the medullary cavity area that the main probe 220 cannot align with, thereby improving the convenience of adjusting the position of the lateral probe 232.

[0061] The probe unit 200 and the rotary unit 300 are combined to cover and clean the medullary cavity area.

[0062] Meanwhile, in order to further increase the cleaning area of ​​the probe unit 200, the carrier tube 210 is connected to at least a plurality of lateral components 230.

[0063] Specifically, multiple lateral probes 232 are evenly distributed around the axis of the bearing tube 210 and located at different heights.

[0064] In this embodiment, the spacing is determined based on the auxiliary flushing range of the lateral probe 232 and the medullary cavity. Then, the lateral component 230 is fixed at the set spacing, and the rotary unit 300 drives the probe unit 200 to rotate. During this process, the main probe 220, the compensation probe 240, and multiple lateral probes 232 are opened and closed in sequence. Since the multiple lateral probes 232 are evenly distributed around the axis of the carrier tube 210, the multiple lateral probes 232 output ultrasonic waves in multiple directions at different heights. Thus, the ultrasonic waves output by the multiple lateral probes 232 will not interfere with each other. The ultrasonic waves formed by the sequential opening and closing of the main probe 220, the compensation probe 240, and the multiple lateral probes 232 cover the medullary cavity without gaps, avoiding residual infected tissue caused by cleaning gaps in the medullary cavity, and effectively increasing the ultrasonic treatment effect.

[0065] To prevent repeated cleaning of the probe unit 200 from contaminating the medullary cavity, a disinfection unit 400 is also included.

[0066] Specifically, the disinfection unit 400 includes a disinfection cylinder 410; the disinfection cylinder 410 contains disinfectant; the ultrasonic body 100 drives the probe unit 200 to be inserted into the disinfection cylinder 410, and the probe unit 200 outputs ultrasonic waves to cavitate the disinfectant, so as to remove impurities from the surface of the probe unit 200.

[0067] In order to effectively utilize the cavitation effect of ultrasound, the disinfection unit 400 also includes a reflective arc plate 420.

[0068] Specifically, the reflective arc plate 420 is connected to the inner wall of the disinfection cylinder 410; the ultrasonic waves output by the probe unit 200 are reflected by the reflective arc plate 420, and the reflection direction is towards the probe unit 200.

[0069] To prevent the disinfectant from contaminating the probe unit 200, the disinfection unit 400 also includes an inlet pipe 430 and an outlet pipe 440.

[0070] Specifically, the inlet pipe 430 is connected to the inlet of the disinfection cylinder 410; the outlet pipe 440 is connected to the outlet of the disinfection cylinder 410; when the probe unit 200 is being cleaned, the inlet pipe 430 introduces disinfectant into the disinfection cylinder 410, and the outlet pipe 440 removes the disinfectant from the disinfection cylinder 410 so that the amount of disinfectant in the disinfection cylinder 410 remains unchanged.

[0071] In this embodiment, after the ultrasonic probe structure completes one cleaning operation, the ultrasonic main body 100 inserts the probe unit 200 into the disinfection cylinder 410 via the rotary unit 300. The rotary unit 300 then rotates the probe unit 200 within the disinfection cylinder 410, agitating the disinfectant solution. The inlet pipe 430 injects disinfectant solution into the disinfection cylinder 410, while the outlet pipe 440 removes the disinfectant solution from the cylinder, ensuring that the amount of disinfectant solution in the cylinder remains constant and is replaced. A unidirectional flow of liquid is formed within the cylinder, and both work together to rinse the probe unit 200. During this process, the main probe 220, the compensation probe 240, and multiple lateral probes 232 are sequentially opened and closed. The generated ultrasonic waves are reflected by the reflective arc plate 420, cavitating the disinfectant solution and thus cleaning the probe unit 200.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ultrasonic probe structure, characterized in that: It includes an ultrasound body (100) and a probe unit (200); The probe unit (200) includes a support tube (210), a main probe (220), and a lateral component (230); one end of the support tube (210) is connected to the ultrasound body (100), and the other end is connected to the main probe (220); The lateral component (230) includes a lifting frame (231) and a lateral probe (232); The lifting frame (231) is inserted into the bearing tube (210) and is slidably connected to the bearing tube (210); The lateral probe (232) is inserted into the lifting frame (231); The lifting frame (231) drives the lateral probe (232) to move along the bearing tube (210) so as to change the distance between the main probe (220) and the lateral probe (232).

2. The ultrasonic probe structure according to claim 1, characterized in that: The lateral member (230) also includes a limiting bolt (233); The bearing tube (210) is provided with a limiting slot (211) extending along the length direction of the bearing tube (210); The limiting bolt (233) is threaded through the lifting frame (231), the limiting bolt (233) is inserted into the limiting slot (211), and moves along the length direction of the limiting slot (211).

3. The ultrasonic probe structure according to claim 2, characterized in that: The probe unit (200) also includes a distance scale (250); The bearing tube (210) also includes a spaced slot (213); The distance scale (250) is inserted into the bearing tube (210); The lateral member (230) also includes a distance pointer (234); The fixed-distance pointer (234) is connected to the lifting frame (231), the fixed-distance pointer (234) is inserted into the fixed-distance slot (213), and moves along the fixed-distance slot (213); The lifting frame (231) drives the distance pointer (234) to move along the distance slot (213) so that the distance pointer (234) moves along the length direction of the distance scale (250).

4. The ultrasonic probe structure according to claim 3, characterized in that: The main probe (220) includes a mounting base (221), a vertical probe (222), and a flexible end cap (223); The mounting base (221) is connected to the bearing tube (210); One end of the vertical probe (222) is inserted into the mounting base (221), and the other end is inserted into the flexible end cap (223).

5. The ultrasonic probe structure according to claim 4, characterized in that: The probe unit (200) also includes a compensation probe (240); The compensation probe (240) is inserted at an angle into the bearing tube (210); The main probe (220), the compensation probe (240), and the lateral probe (232) are turned on and off in sequence so that the ultrasound waves cover the local area of ​​the medullary cavity without gaps. The ultrasound waves emitted by the compensation probe (240) fill the gaps between the ultrasound waves emitted by the main probe (220) and the lateral probe (232).

6. The ultrasonic probe structure according to claim 1 or 5, characterized in that: It also includes a rotary unit (300); The rotary unit (300) includes a motor mounting bracket (310) and a drive motor (320); The motor mounting bracket (310) is inserted into the bearing tube (210); The housing of the drive motor (320) is inserted into the motor mounting bracket (310), and its rotation shaft is connected to the ultrasonic body (100); The drive motor (320) drives the probe unit (200) to rotate relative to the ultrasound body (100) via the motor mounting bracket (310).

7. The ultrasonic probe structure according to claim 6, characterized in that: The bearing tube (210) is inserted with at least a plurality of the lateral members (230); Multiple lateral probes (232) are evenly distributed around the axis of the carrier tube (210) and located at different heights.

8. The ultrasonic probe structure according to claim 7, characterized in that: It also includes a disinfection unit (400); The disinfection unit (400) includes a disinfection cylinder (410); The disinfection cylinder (410) contains disinfectant solution; The ultrasonic body (100) drives the probe unit (200) to be inserted into the disinfection cylinder (410). The probe unit (200) outputs ultrasonic waves to drive the disinfection liquid to cavitation, so that impurities on the surface of the probe unit (200) are removed.

9. The ultrasonic probe structure according to claim 8, characterized in that: The disinfection unit (400) also includes a reflective arc plate (420); The reflective arc plate (420) is connected to the inner wall of the disinfection cylinder (410); The ultrasonic waves output by the probe unit (200) are reflected by the reflective arc plate (420), and the reflection direction is towards the probe unit (200).

10. The ultrasonic probe structure according to claim 9, characterized in that: The disinfection unit (400) also includes an inlet pipe (430) and an outlet pipe (440); The liquid inlet pipe (430) is connected to the inlet of the disinfection cylinder (410); The drain pipe (440) is connected to the outlet of the disinfection cylinder (410); When the probe unit (200) is cleaned, the inlet pipe (430) inputs disinfectant into the disinfection cylinder (410), and the outlet pipe (440) removes the disinfectant from the disinfection cylinder (410) so that the amount of disinfectant in the disinfection cylinder (410) remains unchanged.

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