Biopsy needle cleaning device and method for neurosurgery department

Abstract

The invention discloses a biopsy needle cleaning device for neurosurgery department, and relates to the technical field of cleaning equipment.The biopsy needle cleaning device comprises an ultrasonic cleaning machine body and a puncture needle tubing, a detachable blowing mechanism is arranged in the ultrasonic cleaning machine body, the ultrasonic cleaning machine body comprises a main case, an auxiliary case and a case cover, and a cleaning pool is arranged on the upper end face of the main case; an air compressor for supplying air to the air blowing mechanism is arranged in the auxiliary machine box, an energy converter is arranged at the bottom of the cleaning pool, the air blowing mechanism comprises a needle tube frame, an air supply cover and a fixing lead screw, a supporting plate used for installing a puncture needle tube is arranged on the needle tube frame, and the air supply cover is detachably installed on the needle tube frame and supplies air into the puncture needle tube. The device has the advantages of efficient cleaning, intelligent drying and multi-specification adaptation, and the problems that a traditional cleaning method is low in efficiency, incomplete in cleaning, poor in drying effect and difficult to adapt to puncture needle tubes of various specifications are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a biopsy needle cleaning device and method for neurosurgery. Background Art

[0002] In neurosurgery, biopsy needles are key tools for obtaining tissue samples, and their cleanliness directly affects the accuracy of pathological diagnosis and the treatment effect of patients. Traditional cleaning methods mainly rely on manual cleaning or simple ultrasonic cleaning equipment, which have some significant shortcomings: manual cleaning is inefficient and it is difficult to ensure that all dirt and microorganisms on the inner and outer surfaces of the puncture needle can be completely removed every time; and although the existing ultrasonic cleaning device can effectively remove some attachments, it has limited cleaning effect on the inside of the puncture needle, especially the fine parts, and lacks effective drying methods, which can easily lead to residual moisture breeding bacteria, affecting subsequent use.

[0003] In addition, due to the variety of sizes and specifications of puncture needles, traditional cleaning equipment often cannot adapt well to puncture needles of different specifications, which not only increases the workload of medical staff, but may also cause damage to the equipment due to improper operation, thus affecting the quality of medical care. At the same time, how to avoid scratching the surface of precision medical equipment during the cleaning process is also a problem that needs to be solved. Therefore, a neurosurgery biopsy needle cleaning device and method are needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a biopsy needle cleaning device and method for neurosurgery, which has the advantages of efficient cleaning, intelligent drying and multi-specification adaptation, and solves the problems of low efficiency, incomplete cleaning, poor drying effect and difficulty in adapting to puncture needles of various specifications of traditional cleaning methods.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A biopsy needle cleaning device for neurosurgery, comprising an ultrasonic cleaning machine body and a puncture needle tube, wherein a detachable blowing mechanism is provided in the ultrasonic cleaning machine body;

[0006] The main body of the ultrasonic cleaning machine includes a main case, a sub-case and a case cover, the upper end surface of the main case is provided with a cleaning pool, the sub-case is provided with an air compressor for supplying air to the blowing mechanism, and the bottom of the cleaning pool is provided with a transducer;

[0007] The blowing mechanism includes a needle tube rack, an air supply cover and a fixed screw. The needle tube rack is provided with a support plate for installing the puncture needle tube. The air supply cover is detachably installed on the needle tube rack and supplies air to the puncture needle tube. The needle tube rack and the air supply cover are fixed by a fixed screw.

[0008] As a preferred neurosurgery biopsy needle cleaning device of the present invention, a first air supply tube is provided at the bottom of the needle tube holder, a second air supply hole is provided on the upper end surface of the needle tube holder, a main airway for ventilation is provided between the first air supply tube and the second air supply hole, a second air supply tube slidingly matched with the second air supply hole is provided on the lower end surface of the air supply cover, the fixed screw is installed on the air supply cover and rotatably connected with it, a screw hole matching with the fixed screw is provided at the center of the support plate, and an air blowing head matching with the puncture needle tube is provided on the lower end surface of the air supply cover.

[0009] As a preferred biopsy needle cleaning device for neurosurgery of the present invention, a positioning hole is provided on the support plate, a silicone sleeve is fixedly installed in the positioning hole, the puncture needle tube passes through the silicone sleeve and is slidably connected to the support plate, and a soft nozzle is provided at the bottom of the blowing head, the soft nozzle is made of silicone or rubber material, and the bottom of the soft nozzle is a conical structure.

[0010] As a preferred neurosurgery biopsy needle cleaning device of the present invention, the side end surface of the cleaning pool is provided with a limiting guide rail that slidably cooperates with the needle tube rack, the side end surface of the needle tube rack is provided with a pulley, and the side end surface of the limiting guide rail is provided with a threaded locking bolt.

[0011] As a preferred neurosurgery biopsy needle cleaning device of the present invention, the side end face of the first air supply pipe is provided with an air vent, the bottom of the cleaning pool is provided with a first air supply seat cooperating with the first air supply pipe, a movably connected sealing baffle is provided in the first air supply seat, and a connecting pipe is provided between the bottom of the first air supply seat and the air compressor.

[0012] As a preferred biopsy needle cleaning device for neurosurgery of the present invention, a sleeve is arranged at the center of the upper end surface of the bottom of the first air supply seat, a spring is arranged in the sleeve, a piston rod is arranged on the lower end surface of the sealing baffle, the piston rod is inserted into the sleeve and elastically connected with the sleeve by a spring, and the diameter of the sealing baffle is smaller than the inner diameter of the first air supply seat.

[0013] As a preferred biopsy needle cleaning device for neurosurgery of the present invention, a rotatably connected purge base is provided on the upper end surface of the bottom of the needle tube holder, a bronchial airway connected to the purge base is provided in the needle tube holder, a through connection connected to the valve cavity is provided between the bronchial airway and the main airway, a buoyancy valve is provided at the bottom of the needle tube holder, the buoyancy valve includes a valve core, a connecting rod and a float, the valve core is installed in the valve cavity and is slidably connected to the needle tube holder, and the float is fixedly installed at the bottom of the valve core through a connecting rod.

[0014] As a preferred biopsy needle cleaning device for neurosurgery of the present invention, the base of the purging base includes a shaft tube, a turntable and a spiral nozzle, the shaft tube is installed at the bottom of the turntable, the spiral nozzle is fixedly installed on the upper end surface of the turntable, the shaft tube is through-connected with the spiral nozzle, and the purging base is rotatably connected to the needle tube holder through the shaft tube.

[0015] As a preferred neurosurgery biopsy needle cleaning device of the present invention, a drain pipe is provided at the bottom of the cleaning pool, a solenoid valve is provided on the drain pipe, the box cover is rotatably connected to the main box through a hinge, and an ultraviolet disinfection lamp is provided on the lower end surface of the box cover.

[0016] A method for cleaning a biopsy needle for neurosurgery comprises the following steps:

[0017] Step 1: Fix the puncture needle tube on the needle tube holder;

[0018] Step 2: Install the needle tube holder in the main box and clean it with an ultrasonic cleaner;

[0019] Step 3: Use an air compressor to supply air to ventilate the inside of the puncture needle tube to discharge dirt on its inner wall, while increasing the oxygen content and improving the cleaning effect;

[0020] Step 4: Dry and disinfect the inside of the puncture needle tube chassis.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention adopts a dual-system linkage structure of ultrasonic cleaning and air pressure blowing. When the puncture needle tube is installed in the positioning hole with a silicone sleeve, the ultrasonic transducer removes surface attachments through the cavitation effect. At the same time, the air compressor supplies air to the blowing head and the spiral nozzle through the main airway-bronchial system. The buoyancy valve intelligently switches the working mode according to the water level: when the water level is full, the float rises to close the bronchial airway, and the airflow only flushes the inner wall of the needle tube through the blowing head; after drainage, the float sinks to connect the bronchial airway, and the spiral nozzle rotates under the reaction force to form a three-dimensional drying network of annular airflow on the outer wall and straight jet airflow on the inner wall. This structure solves the problems of incomplete cleaning of the inner and outer walls of traditional cleaning devices and low drying efficiency.

[0023] 2. The positioning hole silicone sleeve of the present invention provides a guide for the insertion of the puncture needle and provides surface buffering. The conical structure of the soft blowing nozzle adapts to different tube diameters and prevents scratches on the tube mouth. The spiral nozzle and the shaft tube rotation mechanism of the purge base improve the uniformity of drying. The needle holder is precisely positioned through the limit rail and the pulley. The spring piston structure of the first air supply pipe and the sealing baffle ensures that the air path is automatically closed when not installed. This design overcomes the technical pain points of easy damage to precision medical equipment and difficulty in adapting to multiple specifications, and supports batch cleaning of multiple puncture needles of different specifications at a time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A top view of the present invention;

[0026] Figure 3 For the present invention Figure 2 Middle AA section;

[0027] Figure 4 It is an exploded view of the blowing mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0029] Figure 6 For the present invention Figure 3 Enlarged view of point C in the middle;

[0030] Figure 7 For the present invention Figure 3 Enlarged view of point D in the middle;

[0031] Figure 8 For the present invention Figure 1 Enlarged view of point E in the middle;

[0032] Fig. 9 It is a schematic diagram of the structure of the purge base of the present invention.

[0033] In the figure: 1. ultrasonic cleaning machine body; 101. main chassis; 1011. cleaning tank; 1012. guide rail; 10121. locking bolt; 1013. drain pipe; 102. auxiliary chassis; 103. box cover; 1031. ultraviolet disinfection lamp; 104. transducer; 105. air compressor; 106. first air supply seat; 1061. sealing baffle; 10611. piston rod; 1062. sleeve; 1063. spring; 1064. connecting pipe; 2. blowing mechanism; 201. needle tube stand; 2011. first air supply pipe; 20111. air vent; 2012 , the second air supply hole; 2013, pulley; 2014, support plate; 2015, screw hole; 2016, positioning hole; 2017, main airway; 2018, bronchial airway; 2019, valve chamber; 202, air supply cover; 2021, second air supply pipe; 2022, blowing head; 2023, soft blowing nozzle; 203, fixed screw rod; 204, purge base; 2041, turntable; 2042, spiral nozzle; 2043, shaft tube; 205, silicone sleeve; 206, buoyancy valve; 2061, valve core; 2062, connecting rod; 2063, float; 3, puncture needle tube. DETAILED DESCRIPTION

[0034] Example 1

[0035] See also Figure 1-Figure 9 , a biopsy needle cleaning device for neurosurgery, comprising an ultrasonic cleaning machine body 1 and a puncture needle tube 3, wherein a detachable blowing mechanism 2 is arranged in the ultrasonic cleaning machine body 1;

[0036] The main body 1 of the ultrasonic cleaning machine includes a main case 101, a sub-case 102 and a case cover 103. A cleaning pool 1011 is arranged on the upper end surface of the main case 101. An air compressor 105 for supplying air to the blowing mechanism 2 is arranged in the sub-case 102. A transducer 104 is arranged at the bottom of the cleaning pool 1011.

[0037] The blowing mechanism 2 includes a needle tube stand 201, an air supply cover 202 and a fixed screw 203. The needle tube stand 201 is provided with a support plate 2014 for installing the puncture needle tube 3. The air supply cover 202 is detachably installed on the needle tube stand 201 and supplies air to the puncture needle tube 3. The needle tube stand 201 and the air supply cover 202 are fixed by the fixed screw 203.

[0038] Furthermore, a first air supply tube 2011 is provided at the bottom of the syringe rack 201, a second air supply hole 2012 is provided on the upper end surface of the syringe rack 201, a main air channel 2017 for ventilation is provided between the first air supply tube 2011 and the second air supply hole 2012, a second air supply tube 2021 slidingly matched with the second air supply hole 2012 is provided on the lower end surface of the air supply cover 202, a fixed screw rod 203 is installed on the air supply cover 202 and is rotatably connected thereto, a screw hole 2015 matched with the fixed screw rod 203 is provided at the center of the support plate 2014, and an air blowing head 2022 matched with the puncture needle tube 3 is provided on the lower end surface of the air supply cover 202.

[0039] The second air supply tube 2021 at the bottom of the air supply cover 202 is aligned with the second air supply hole 2012 on the needle tube holder 201 and then inserted into the second air supply hole 2012, so that the air paths of the air supply cover 202 and the needle tube holder 201 are connected. The air flow can enter the blowing head 2022 from the first air supply tube 2011 through the main air channel 2017 and then from the second air supply tube 2021 to blow air into the puncture needle tube 3, and float up from the bottom of the puncture needle tube 3. Under ultrasonic vibration, the air flow quickly cleans the inner and outer end surfaces of the puncture needle tube 3, and the needle tube holder 201 and the air supply cover 202 are fixed by fixing bolts to prevent the two from separating under the action of air pressure.

[0040] Furthermore, a positioning hole 2016 is provided on the support plate 2014, and a silicone sleeve 205 is fixedly installed in the positioning hole 2016. The puncture needle tube 3 passes through the silicone sleeve 205 and is slidably connected to the support plate 2014. A soft nozzle 2023 is provided at the bottom of the blowing head 2022. The soft nozzle 2023 is made of silicone or rubber material, and the bottom of the soft nozzle 2023 is a conical structure.

[0041] The puncture needle tube 3 is installed in the positioning hole 2016 to facilitate the cooperation between the puncture needle tube 3 and the purge base 204 at the bottom and the air blowing head 2022 at the top. A silicone sleeve 205 is set in the positioning hole 2016 to effectively avoid scratching the puncture needle tube 3 during the plugging and unplugging process, and at the same time improve the damping effect to avoid the puncture needle tube 3 from falling during the taking process. A soft nozzle is set at the bottom of the air blowing head 2022 to further avoid scratching the puncture needle tube 3 by the air blowing head 2022, and the soft blowing nozzle 2023 structure enables it to cooperate with puncture needle tubes 3 of different calibers.

[0042] Furthermore, the side end surface of the cleaning pool 1011 is provided with a limiting guide rail 1012 that slidably cooperates with the syringe rack 201, the side end surface of the syringe rack 201 is provided with a pulley 2013, and the side end surface of the limiting guide rail 1012 is provided with a threaded locking bolt 10121.

[0043] The syringe rack 201 is inserted into the limiting guide rail 1012 and is slidably connected to the cleaning pool 1011. The structure of the slidably connected syringe rack 201 allows it to be pulled out, so that the puncture needle tube 3 can be installed and disassembled. The limiting guide rail 1012 limits the installation position of the syringe rack 201, so that the first air supply tube 2011 at the bottom of the syringe rack 201 can accurately match the first air supply seat 106.

[0044] Furthermore, an air vent 20111 is provided on the side end face of the first air supply pipe 2011, a first air supply seat 106 cooperating with the first air supply pipe 2011 is provided at the bottom of the cleaning tank 1011, a movably connected sealing baffle 1061 is provided in the first air supply seat 106, and a connecting pipe 1064 is provided between the bottom of the first air supply seat 106 and the air compressor 105.

[0045] The air compressor 105 supplies air to the first air supply seat 106 through the connecting pipe 1064. When the syringe holder 201 is installed in the cleaning tank 1011, the first air supply pipe 2011 is inserted into the first air supply seat 106, pressing the sealing baffle 1061 downward, so that the air flow can pass through the air hole 20111 into the main air duct 2017 to supply air to the blowing mechanism 2.

[0046] Furthermore, a sleeve 1062 is provided at the center of the upper end surface of the bottom of the first air supply seat 106, a spring 1063 is provided in the sleeve 1062, a piston rod 10611 is provided on the lower end surface of the sealing baffle 1061, the piston rod 10611 is inserted into the sleeve 1062 and elastically connected with it through the spring 1063, and the diameter of the sealing baffle 1061 is smaller than the inner diameter of the first air supply seat 106.

[0047] Through the cooperation of the piston rod 10611, the spring 1063 and the sleeve 1062, the sealing baffle 1061 slides upward under the resetting action of the spring 1063 without being offset laterally, ensuring that there is enough space between the sealing baffle 1061 and the inner wall of the first air supply seat 106 for air flow, and when resetting, the sealing baffle 1061 can accurately block the air outlet of the first air supply seat 106, preventing the first air supply seat 106 from exhausting air outward when the blowing mechanism 2 is not installed, thereby affecting the blowing pressure of the blowing head 2022.

[0048] Furthermore, a rotatably connected purge base 204 is provided on the upper end surface of the bottom of the syringe rack 201, a bronchial duct 2018 connected to the purge base 204 is provided in the syringe rack 201, a through connection connected to the valve cavity 2019 is provided between the bronchial duct 2018 and the main airway 2017, and a buoyancy valve 206 is provided at the bottom of the syringe rack 201. The buoyancy valve 206 includes a valve core 2061, a connecting rod 2062 and a float 2063. The valve core 2061 is installed in the valve cavity 2019 and is slidably connected to the syringe rack 201, and the float 2063 is fixedly installed at the bottom of the valve core 2061 through the connecting rod 2062.

[0049] When the cleaning pool 1011 is filled with water, the buoyancy valve 206 floats up, isolating the main airway 2017 from it, so that the high-pressure air is discharged only through the main airway 2017 to flush the puncture needle tube 3. When the water in the cleaning pool 1011 is emptied, the buoyancy valve 206 descends, connecting the main airway 2017 with the bronchial airway 2018, and the blowing head 2022 blows the inner wall of the puncture needle tube 3 dry, and the blowing base 204 blows the outer wall of the puncture needle tube 3 dry.

[0050] Furthermore, the base of the purge base 204 includes a shaft tube 2043, a turntable 2041 and a spiral nozzle 2042. The shaft tube 2043 is installed at the bottom of the turntable 2041, and the spiral nozzle 2042 is fixedly installed on the upper end surface of the turntable 2041. The shaft tube 2043 is connected with the spiral nozzle 2042, and the purge base 204 is rotatably connected with the needle tube rack 201 through the shaft tube 2043.

[0051] When the bronchial passage 2018 is connected with the main airway 2017, the airflow is ejected from the spiral nozzle 2042. During the process of the spiral nozzle 2042 ejecting the airflow, the purge base 204 rotates under the reaction force of the airflow, thereby evenly purges the outer end surface of the puncture needle tube 3.

[0052] Furthermore, a drain pipe 1013 is provided at the bottom of the cleaning pool 1011 , and a solenoid valve is provided on the drain pipe 1013 . The box cover 103 is rotatably connected to the main box 101 through a hinge, and an ultraviolet disinfection lamp 1031 is provided on the lower end surface of the box cover 103 .

[0053] When the cleaning is completed, the drain pipe 1013 is opened to drain the water in the cleaning chamber through the drain pipe 1013, and the ultraviolet lamp is turned on to dry the puncture needle tube 3 and disinfect it.

[0054] Example 2

[0055] See also Figure 1-Figure 9 , a neurosurgery biopsy needle cleaning method, comprising the following steps:

[0056] Step 1, vertically insert the puncture needle tube 3 into the positioning hole 2016 of the support plate 2014 of the needle tube rack 201, and achieve damage-free fixation through the elastic damping of the silicone sleeve 205, press down the air supply cover 202, align the second air supply pipe 2021 with the second air supply hole 2012 of the needle tube rack 201, rotate the fixing screw 203 until the screw hole 2015 is locked, and complete the air path sealing connection, the needle tube rack 201 is pushed in along the limiting guide rail 1012 on the side wall of the cleaning tank 1011, and the pulley 2013 automatically aligns when it contacts the guide rail 1012, and the bottom first air supply pipe 2011 presses down the sealing baffle 1061, triggering the air compressor 105 to open the air path;

[0057] Step 2: inject enzyme-containing cleaning solution or clean water into the cleaning pool 1011, start the transducer 104, and use the cavitation effect to peel off the biofilm on the inner and outer walls of the needle tube;

[0058] Step 3, the air compressor 105 supplies air synchronously, and the airflow is ejected from the blowing head 2022 through the main airway 2017, forming a laminar flow flushing the inner wall of the needle tube. The bubbles oscillate at a high frequency under the action of ultrasound, accelerating the separation of dirt. The buoyancy valve 206 automatically closes the bronchial passage 2018 due to the rising water level, ensuring that the airflow acts on the inner wall for cleaning. During the cleaning process, air supply can be intermittent to improve the cleaning effect. The cleaning time is 8-10 minutes;

[0059] Step 4, open the solenoid valve of the drain pipe 1013 to empty the cleaning liquid, and the buoyancy valve 206 opens the bronchial passage 2018 as the water level drops. The airflow is divided into two paths. The main airway 2017 flows directly into the inner cavity of the needle tube through the blowing head 2022, and the bronchial passage 2018 flows out through the purge base 204, driving the purge base 204 to rotate, forming a ring-shaped centrifugal airflow covering the outer surface of the needle tube, and starting the ultraviolet disinfection lamp 1031 to sterilize the puncture needle tube 3 and the cavity for 15-30 minutes.

[0060] 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. A biopsy needle cleaning device for neurosurgery, comprising an ultrasonic cleaning machine body (1) and a puncture needle tube (3), characterized in that: A detachable air blowing mechanism (2) is arranged in the main body (1) of the ultrasonic cleaning machine; The ultrasonic cleaning machine body (1) comprises a main case (101), a sub-case (102) and a case cover (103); a cleaning pool (1011) is arranged on the upper end surface of the main case (101); an air compressor (105) for supplying air to the blowing mechanism (2) is arranged in the sub-case (102); and a transducer (104) is arranged at the bottom of the cleaning pool (1011); The blowing mechanism (2) comprises a needle tube stand (201), an air supply cover (202) and a fixed screw (203); the needle tube stand (201) is provided with a support plate (2014) for mounting a puncture needle tube (3); the air supply cover (202) is detachably mounted on the needle tube stand (201) and supplies air to the puncture needle tube (3); the needle tube stand (201) and the air supply cover (202) are fixed by the fixed screw (203).

2. A neurosurgery biopsy needle cleaning device as claimed in claim 1, characterized in that: A first air supply tube (2011) is arranged at the bottom of the needle tube holder (201), a second air supply hole (2012) is arranged at the upper end surface of the needle tube holder (201), a main air channel (2017) for ventilation is arranged between the first air supply tube (2011) and the second air supply hole (2012), a second air supply tube (2021) slidably matched with the second air supply hole (2012) is arranged at the lower end surface of the air supply cover (202), the fixed screw rod (203) is installed on the air supply cover (202) and is rotatably connected thereto, a screw hole (2015) matched with the fixed screw rod (203) is arranged at the center of the support plate (2014), and an air blowing head (2022) matched with the puncture needle tube (3) is arranged at the lower end surface of the air supply cover (202).

3. A neurosurgery biopsy needle cleaning device as claimed in claim 2, characterized in that: The support plate (2014) is provided with a positioning hole (2016), a silicone sleeve (205) is fixedly installed in the positioning hole (2016), the puncture needle tube (3) passes through the silicone sleeve (205) and is slidably connected to the support plate (2014), and a soft blowing nozzle (2023) is provided at the bottom of the blowing head (2022).

4. A neurosurgery biopsy needle cleaning device as claimed in claim 3, characterized in that: The side end surface of the cleaning pool (1011) is provided with a limiting guide rail (1012) that slidably cooperates with the syringe rack (201), the side end surface of the syringe rack (201) is provided with a pulley (2013), and the side end surface of the limiting guide rail (1012) is provided with a threaded locking bolt (10121).

5. A neurosurgery biopsy needle cleaning device as claimed in claim 4, characterized in that: The side end face of the first air supply pipe (2011) is provided with an air vent (20111), the bottom of the cleaning pool (1011) is provided with a first air supply seat (106) that cooperates with the first air supply pipe (2011), a movably connected sealing baffle (1061) is provided inside the first air supply seat (106), and a connecting pipe (1064) is provided between the bottom of the first air supply seat (106) and the air compressor (105).

6. A neurosurgery biopsy needle cleaning device as claimed in claim 5, characterized in that: A sleeve (1062) is arranged at the center of the upper end surface of the bottom of the first air supply seat (106), and a spring (1063) is arranged inside the sleeve (1062). A piston rod (10611) is arranged on the lower end surface of the sealing baffle (1061), and the piston rod (10611) is inserted into the sleeve (1062) and elastically connected thereto via the spring (1063). The diameter of the sealing baffle (1061) is smaller than the inner diameter of the first air supply seat (106).

7. A neurosurgery biopsy needle cleaning device as claimed in claim 6, characterized in that: The upper end surface of the bottom of the needle tube rack (201) is provided with a rotatably connected purge base (204), and a bronchial passage (2018) connected to the purge base (204) is provided in the needle tube rack (201). A through connection to a valve cavity (2019) is provided between the bronchial passage (2018) and the main airway (2017). A buoyancy valve (206) is provided at the bottom of the needle tube rack (201), and the buoyancy valve (206) includes a valve core (2061), a connecting rod (2062) and a floating ball (2063). The valve core (2061) is installed in the valve cavity (2019) and is slidably connected to the needle tube rack (201), and the floating ball (2063) is fixedly installed at the bottom of the valve core (2061) through the connecting rod (2062).

8. A neurosurgery biopsy needle cleaning device as claimed in claim 7, characterized in that: The base of the purge base (204) comprises a shaft tube (2043), a turntable (2041) and a spiral nozzle (2042); the shaft tube (2043) is installed at the bottom of the turntable (2041); the spiral nozzle (2042) is fixedly installed on the upper end surface of the turntable (2041); the shaft tube (2043) and the spiral nozzle (2042) are connected in a through manner; and the purge base (204) is rotatably connected to the needle tube rack (201) via the shaft tube (2043).

9. A neurosurgery biopsy needle cleaning device as claimed in claim 1, characterized in that: A drain pipe (1013) is provided at the bottom of the cleaning pool (1011), and a solenoid valve is provided on the drain pipe (1013). The box cover (103) is rotatably connected to the main box (101) via a hinge, and an ultraviolet disinfection lamp (1031) is provided on the lower end surface of the box cover (103).

10. A neurosurgery biopsy needle cleaning method, applicable to a neurosurgery biopsy needle cleaning device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, fixing the puncture needle tube (3) on the needle tube stand (201); Step 2, installing the needle tube holder (201) in the main box (101), and cleaning it by an ultrasonic cleaning machine; Step 3, supplying air through the air compressor (105) to ventilate the interior of the puncture needle tube (3) to discharge dirt on the inner wall thereof, while increasing the oxygen content and improving the cleaning effect; Step 4: Dry and disinfect the puncture needle tube (3) in the cabinet.

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