Medical dust collection head and medical dust collection equipment

Abstract

The utility model relates to the technical field of medical instruments, and particularly provides a medical dust collection head and medical dust collection equipment. One end of the storage piece is detachably connected with the sucking and sweeping piece; the storage part is used for storing the chippings adsorbed by the sucking and sweeping part; one end of the negative pressure filter pipe is detachably connected with the other end of the storage part, and the other end of the negative pressure filter pipe is detachably connected with the negative pressure pipe; wherein the storage piece is provided with an expansion pipe body, the expansion pipe body is provided with a lower storage cavity and an upper negative pressure cavity, and the lower storage cavity and the upper negative pressure cavity are separated through a blocking baffle; one end of the negative pressure filter pipe is inserted into the upper negative pressure cavity; the blocking baffle is used for blocking part of chippings from entering the upper negative pressure cavity from the lower storage cavity. And therefore, paths for chippings to enter the negative pressure pipe are reduced. The blocking probability of the negative pressure pipe is effectively reduced, and the negative pressure pipe can keep stable suction force after being used for a long time.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more particularly to a medical vacuum cleaner head and a medical vacuum cleaner device. Background Technology

[0002] Currently, in the daily nursing care of hospital ICU wards, nurses need to regularly clean patients' bed sheets to remove debris such as dander and hair. To achieve effective cleaning, medical staff often use vacuum cleaner heads with brushes to sweep the wards. These vacuum cleaner heads are connected to the negative pressure tubes on the beds, and the suction port at the bottom of the head is surrounded by brushes, which can brush while vacuuming, improving cleaning efficiency.

[0003] However, existing vacuum cleaner brush heads typically connect directly to the negative pressure interface next to the bed via a negative pressure tube, relying on negative pressure to provide suction and draw dust, dander, or hair into the tube. Because these debris enters the negative pressure tube directly, they easily accumulate at corners or bends, causing blockages, reduced suction power, and compromised cleaning effectiveness.

[0004] Therefore, existing technologies have defects and shortcomings, and need further improvement and development. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a medical vacuum cleaner head and a medical vacuum cleaner device, which aims to solve the problem that the vacuum cleaner brush head in the prior art is prone to causing the negative pressure tube to become blocked and the suction power to decrease.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: A medical vacuum head for vacuuming debris from a hospital bed, comprising: the medical vacuum head comprising:

[0007] Vacuum-sweeping components;

[0008] A storage component, one end of which is detachably connected to the suction and sweeping component; the storage component is used to store debris adsorbed by the suction and sweeping component.

[0009] A negative pressure filter tube, one end of which is detachably connected to the other end of the storage device, and the other end of which is detachably connected to the negative pressure tube;

[0010] The storage device is provided with an expanded tube body, which is provided with a lower storage chamber and an upper negative pressure chamber, and the lower storage chamber and the upper negative pressure chamber are separated by a baffle plate; one end of the negative pressure filter tube is inserted into the upper negative pressure chamber; the baffle plate is used to prevent some debris from entering the upper negative pressure chamber from the lower storage chamber.

[0011] Optionally, the barrier baffle may be detachably provided with a straight section and an arc-shaped section, the arc-shaped section being bent toward the lower storage cavity.

[0012] Optionally, the suction and sweeping component is provided with a connecting bend, one end of which is detachably connected to the expansion tube body. The connecting bend is connected to both the expansion tube body and the suction and sweeping component. A storage hole is provided at the connection between the expansion tube body and the connecting bend. The storage hole is connected to the lower storage cavity, and the straight plate section is located above the storage hole.

[0013] Optionally, the negative pressure filter tube is provided with a filter rod and a connecting pipe. The filter rod is used to be inserted into the upper negative pressure chamber, and the connecting pipe is used to be snapped into the negative pressure tube. The filter rod is provided with a plurality of filter holes.

[0014] Optionally, the length of the filter rod is set to 90% to 95% of the length of the upper negative pressure chamber.

[0015] Optionally, the end of the connecting pipe near the filter rod is provided with an external thread, and the end of the connecting pipe away from the filter rod is provided with a plurality of reverse retaining rings, which are used to engage with the negative pressure pipe.

[0016] Optionally, the end of the expansion tube away from the connecting bend is provided with a tapered opening, the diameter of which is adapted to the diameter of the connecting tube, and an internal thread is provided in the tapered opening for screwing into the external thread.

[0017] Optionally, the suction and sweeping component and the storage component constitute the suction head body; the suction and sweeping component is further provided with a suction and sweeping body and a brush plate, the other end of the connecting bend is fixedly connected to the suction and sweeping body, the suction and sweeping body is provided with a collection cavity, and the brush plate is used to snap onto the collection cavity.

[0018] Optionally, the brush plate is provided with a plurality of bristles and a plurality of adsorption holes, the adsorption holes and the plurality of bristles are arranged at intervals, and the plurality of adsorption holes are in communication with the collection cavity.

[0019] Another technical solution adopted by this application to solve the technical problem is as follows: a medical vacuum cleaner, which includes the medical vacuum head as described above.

[0020] Compared with existing technologies, this application provides a medical vacuum cleaner head and a medical vacuuming device. The medical vacuum cleaner head, through a detachable suction and sweeping component and a storage component within the head body, allows debris generated during the suction process to be directly guided into the storage component for centralized storage, preventing debris from directly entering the negative pressure tube. An expanded tube within the storage component forms a separation structure between the lower storage chamber and the upper negative pressure chamber, and a baffle separates the two, causing debris to deposit in the lower storage chamber and preventing it from entering the upper negative pressure chamber with the negative pressure airflow. Since the negative pressure filter tube is inserted into the upper negative pressure chamber, the negative pressure effect is only transmitted to the head body, thereby reducing the path for debris to enter the negative pressure tube. This effectively reduces the probability of blockage in the negative pressure tube and maintains stable suction power even after prolonged use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the medical vacuum cleaner head provided in this application;

[0022] Figure 2 This is a front view of the medical vacuum cleaner head provided in this application;

[0023] Figure 3 It is provided in this application Figure 2 A sectional view along the I-I direction;

[0024] Figure 4 This is a three-dimensional exploded structural diagram of the medical vacuum cleaner head provided in this application;

[0025] Figure 5 This is a three-dimensional structural diagram of the medical vacuum head provided in this application from another perspective;

[0026] Figure 6 It is provided in this application Figure 4 Enlarged diagram of point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Medical vacuum cleaner head; 11. Vacuum head body; 111. Vacuuming and sweeping component; 112. Storage component; 1121. Expanding tube body; 1122. Lower storage chamber; 1123. Upper negative pressure chamber; 1124. Barrier baffle; 1125. Straight section; 1126. Curved section; 1127. Connecting bend; 1128. Storage hole; 12. Negative pressure filter tube; 121. Filter rod; 1211. Filter hole; 122. Connecting tube; 1221. External thread; 1222. Reverse retaining ring; 1223. Gradient opening; 1224. Internal thread; 1111. Vacuuming and sweeping body; 1112. Brush plate; 1113. Collection chamber; 1114. Brush bristles; 1115. Adsorption hole. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Please refer to the following: Figures 1 to 6 The first embodiment of this application provides a medical vacuum head 10 for effectively vacuuming up debris such as skin flakes and hair on hospital beds. This significantly reduces the possibility of debris entering the negative pressure tube, thus preventing blockage and ensuring stable suction. Specifically, the negative pressure tube is existing technology, and its specific working principle will not be elaborated upon in this application. The structure of the medical vacuum head 10 mainly includes a suction component 111, a storage component 112, and a negative pressure filter tube 12. Its specific working principle is as follows:

[0033] In use, medical staff first assemble the suction and sweeping component 111 and the storage component 112 into the suction head body 11, and then screw the negative pressure filter tube 12 to the storage component 112. Nursing staff can use the suction and sweeping component 111 to clean the surface of the hospital bed. The suction and sweeping component 111 includes the suction and sweeping body 1111 and the brush plate 1112 installed on it. The brush plate 1112 is provided with a number of bristles 1114 and suction holes 1115, which are arranged alternately. When the suction head is connected to the negative pressure tube, the suction holes 1115 generate suction, which can effectively suck up debris such as skin flakes and hair from the surface of the hospital bed during the sweeping process.

[0034] The sucked-in debris first enters the connecting bend 1127 via the suction and sweeping element 111, and then is guided into the expansion tube 1121 inside the storage element 112 through the storage hole 1128. The expansion tube 1121 has a lower storage chamber 1122 and an upper negative pressure chamber 1123 separated by an integrally formed baffle 1124. The baffle 1124 includes a straight section 1125 and a downwardly bent arc-shaped section 1126. This ensures that most debris, after entering the expansion tube 1121, is deposited in the lower storage chamber 1122 due to gravity and flow velocity changes, making it difficult for it to continue upward through the baffle 1124 into the upper negative pressure chamber 1123. Furthermore, the straight section 1125 is located directly above the storage hole 1128, further creating a path obstacle for airflow reversal, structurally reducing the possibility of debris directly entering the upper negative pressure chamber 1123 with the airflow.

[0035] After initial debris filtration, air containing some fine dust enters the upper negative pressure chamber 1123 and is further filtered by the filter rod 121 inserted into the upper negative pressure chamber 1123. The length of the filter rod 121 is 90% to 95% of the length of the upper negative pressure chamber 1123, which can fully cover the airflow channel, effectively block residual particles, improve filtration efficiency, and prevent fine debris from entering the negative pressure pipe.

[0036] Filtered air flows out through the connecting pipe 122. The end of the connecting pipe 122 near the filter rod 121 has an external thread 1221, and the end away from the filter rod 121 has several inverted retaining rings 1222, which reliably engage with the negative pressure tube beside the bed. To further ensure sealing and connection stability, the outlet of the expansion tube 1121 has a tapered end 1223. The diameter of the tapered end 1223 is adapted to the connecting pipe 122, and the tapered end 1223 has an internal thread 1224, which can be screwed onto the external thread 1221 on the connecting pipe 122, further ensuring a tight connection. When cleaning the medical vacuum head 10 is required, the storage component 112 and the suction component 111 can be disassembled, and the debris stored in the storage component 112 can be emptied from the storage hole 1128, thus facilitating the cleaning of the medical vacuum head 10.

[0037] Through the above structural combination, the medical vacuum head 10 can achieve multi-stage filtration during use. The brush plate 1112 agitates and collects surface debris, which is then guided into the lower storage chamber 1122 by the suction body 1111 to settle. The baffle plate 1124 then blocks the debris from rising. Finally, the filter rod 121 further purifies the airflow, effectively preventing debris and hair from entering the negative pressure tube, thus solving the problems of easy clogging of the negative pressure tube and reduced suction power in the prior art.

[0038] Please refer to the following: Figures 1 to 3 In some embodiments, the medical vacuum head 10 includes a storage component 112, a suction component 111, and a negative pressure filter tube 12; one end of the storage component 112 is detachably connected to the suction component 111; the storage component 112 is used to store debris adsorbed by the suction component 111; one end of the negative pressure filter tube 12 is detachably connected to the other end of the storage component 112, and the other end of the negative pressure filter tube 12 is detachably connected to a negative pressure tube; wherein, the storage component 112 is provided with an expansion tube body 1121, the expansion tube body 1121 is provided with a lower storage cavity 1122 and an upper negative pressure cavity 1123, the lower storage cavity 1122 and the upper negative pressure cavity 1123 are separated by a baffle 1124; one end of the negative pressure filter tube 12 is inserted into the upper negative pressure cavity 1123; the baffle 1124 is used to prevent some debris from being sucked from the lower storage cavity 1122 into the upper negative pressure cavity 1123. Furthermore, by detachably configuring the suction and sweeping component 111 and the storage component 112 on the suction head body 11, debris generated during the suction and sweeping process can be directly guided into the storage component 112 for centralized storage, preventing debris from directly entering the negative pressure tube. The expansion tube 1121 within the storage component 112 forms a separation structure between the lower storage chamber 1122 and the upper negative pressure chamber 1123, and the two are separated by a baffle 1124, causing debris to deposit in the lower storage chamber 1122 and preventing it from entering the upper negative pressure chamber 1123 with the negative pressure airflow. Since the negative pressure filter tube 12 is inserted into the upper negative pressure chamber 1123, the negative pressure effect is only transmitted to the suction head body 11, thereby reducing the path for debris to enter the negative pressure tube. This effectively reduces the probability of blockage in the negative pressure tube and maintains stable suction even after prolonged use.

[0039] Please refer to the following: Figure 3In some embodiments, the baffle 1124 is detachably provided with a straight section 1125 and an arc-shaped section 1126, the arc-shaped section 1126 being bent towards the lower storage cavity 1122. Furthermore, by providing the straight section 1125 and the arc-shaped section 1126 on the baffle 1124, with the arc-shaped section 1126 bending towards the lower storage cavity 1122, it is beneficial to guide the airflow direction, allowing larger or heavier debris to settle smoothly to the bottom of the lower storage cavity 1122, preventing it from entering the upper negative pressure cavity 1123 due to eddy current backflow. This further enhances the control over the debris flow direction, improves the functionality of the baffle 1124, and thus enhances the protection effect on the negative pressure pipe.

[0040] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the suction and sweeping component 111 is provided with a connecting bend 1127, one end of which is detachably connected to the expansion tube 1121. This detachable connection can be achieved using existing connection methods such as snap-fit ​​or screw-fit. The connecting bend 1127 communicates with both the expansion tube 1121 and the suction and sweeping component 111. A storage hole 1128 is provided at the connection between the expansion tube 1121 and the connecting bend 1127. The storage hole 1128 communicates with the lower storage cavity 1122, and the straight plate section 1125 is positioned above the storage hole 1128. Furthermore, by providing the connecting bend 1127 between the suction and sweeping component 111 and the expansion tube 1121, the airflow carrying the debris is guided into the expansion tube 1121 and directly introduced into the lower storage cavity 1122 through the storage hole 1128, forming a clear debris transport path. Meanwhile, the straight section 1125 is positioned above the storage hole 1128 to form a structural shield, preventing debris from entering the upper negative pressure chamber 1123 in the reverse direction due to airflow disturbance. While maintaining smooth flow, it also has a debris interception function, further reducing the impact burden on the negative pressure pipe.

[0041] Please refer to the following: Figure 4 and Figure 6In some embodiments, the negative pressure filter tube 12 is provided with a filter rod 121 and a connecting pipe 122. The filter rod 121 is inserted into the upper negative pressure chamber 1123, and the connecting pipe 122 is snapped into the negative pressure tube. The filter rod 121 has a plurality of filter holes 1211 for filtering debris. By providing the filter rod 121 in the negative pressure filter tube 12 and inserting it into the upper negative pressure chamber 1123, particle filtration can be performed before the airflow enters the connecting pipe 122, thereby intercepting some debris that has not been completely settled. Specifically, the filter rod 121 is replaceable and made of soft material, so that the assembly of the connecting pipe 122 and the tapered end 1223 will not cause obstruction, and existing structures can be used. The connecting pipe 122 is used to connect to the negative pressure tube and reduces air leakage through a sealed interface. This further achieves staged filtration, enhances the system's ability to handle small particles, and effectively protects the negative pressure tube from the intrusion of fine debris.

[0042] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the length of the filter rod 121 is set to 90% to 95% of the length of the upper negative pressure chamber 1123. By setting the length of the filter rod 121 to 90% to 95% of the length of the upper negative pressure chamber 1123, it can cover most of the chamber area, increasing the filtration area and adsorption efficiency. While avoiding airflow short-circuiting, it achieves efficient filtration within a limited space, ensuring stable suction output during long-term use.

[0043] Please refer to the following: Figure 4 In some embodiments, the end of the connecting pipe 122 near the filter rod 121 is provided with an external thread 1221, and the end of the connecting pipe 122 away from the filter rod 121 is provided with a plurality of reverse retaining rings 1222, which are used to engage with the negative pressure pipe. By providing an external thread 1221 at the end of the connecting pipe 122 near the filter rod 121 and a plurality of reverse retaining rings 1222 at the end away, the connecting pipe 122 can be engaged with the negative pressure pipe through the reverse retaining rings 1222, while the external thread 1221 achieves a sealed and fixed threaded connection. This improves the stability of the interface connection, prevents loosening at the connection point leading to leakage or unstable suction, and thus ensures the reliability of the negative pressure suction operation.

[0044] Please refer to the following: Figure 3 and Figure 4In some embodiments, the end of the expansion tube 1121 away from the connecting bend 1127 is provided with a tapered end 1223. The diameter of the tapered end 1223 is adapted to the diameter of the connecting pipe 122. An internal thread 1224 is provided in the tapered end 1223 for screwing into the external thread 1221. Thus, by providing a tapered end 1223 at the end of the expansion tube 1121 away from the connecting bend 1127, and adapting its diameter to the connecting pipe 122, and using the internal thread 1224 and external thread 1221 for screwing, a secure connection is achieved. The tapered end 1223 not only facilitates a smooth airflow transition but also avoids airflow turbulence caused by abrupt changes in diameter, improving system stability and preventing the formation of negative pressure vortices at the interface that could cause debris backflow, further ensuring stable suction.

[0045] Please refer to the following: Figure 3 and Figure 5 In some embodiments, the suction and sweeping component 111 and the storage component 112 can be assembled to form a suction head body 11 for convenient daily storage. The suction and sweeping component 111 is provided with a suction and sweeping body 1111 and a brush plate 1112. The other end of the connecting bend 1127 is fixedly connected to the suction and sweeping body 1111. The suction and sweeping body 1111 is provided with a collection cavity 1113, and the brush plate 1112 is used to snap onto the collection cavity 1113. Specifically, the snap-fit ​​structure between the brush plate 1112 and the collection cavity 1113 can be implemented using existing structures. Furthermore, by setting the suction and sweeping component 111 to include a suction and sweeping body 1111 and a brush plate 1112, and using the brush plate 1112 snap-fitted onto the collection cavity 1113, debris can be simultaneously guided into the collection cavity 1113 during the sweeping process, and then guided to the lower storage cavity 1122 through the internal channel. By combining physical cleaning with vacuum adsorption, cleaning efficiency is improved while reducing debris residue on the cleaning surface and enhancing the consistency of the adsorption effect.

[0046] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the brush plate 1112 is provided with a plurality of bristles 1114 and a plurality of suction holes 1115. Specifically, the plurality of bristles 1114 are either soft or hard bristles; the suction holes 1115 and the plurality of bristles 1114 are arranged alternately, and the plurality of suction holes 1115 communicate with the collection chamber 1113. Furthermore, by alternately arranging the plurality of bristles 1114 and the plurality of suction holes 1115 on the brush plate 1112, the brushing and suction processes are performed simultaneously. The suction holes 1115 communicate with the collection chamber 1113, allowing the cleaned debris to be immediately sucked into the collection chamber 1113, reducing the time debris stays outside the medical vacuum head 10, thereby reducing the probability of debris floating or clogging the bristles 1114, and further improving the protection of the negative pressure tube.

[0047] In some embodiments, the barrier baffle 1124 can be configured as a filter plate with a plurality of filter holes, thereby achieving a double-layer filtration effect and effectively preventing debris and hair from entering the negative pressure pipe, thus solving the problems of easy clogging of the negative pressure pipe and reduced suction in the prior art.

[0048] In some embodiments, the medical vacuum head 10 may be made of medical-grade polypropylene and rubber, etc.; the medical vacuum head 10 may be disinfected by ozone disinfection, ultraviolet disinfection or chemical disinfection, etc.

[0049] The second embodiment of this application provides a medical vacuum cleaner, which includes the medical vacuum head described above. This effectively intercepts debris, preventing it from entering the negative pressure tube, solving the problems of clogging and reduced suction power in the prior art, and possesses good adaptability, detachability, and ease of cleaning.

[0050] In summary, this application provides a medical vacuum cleaner head and a medical vacuuming device. The medical vacuum cleaner head includes: a vacuuming component; a storage component, one end of which is detachably connected to the vacuuming component; the storage component is used to store debris adsorbed by the vacuuming component; and a negative pressure filter tube, one end of which is detachably connected to the other end of the storage component, and the other end of which is detachably connected to a negative pressure tube. The storage component is provided with an expanded tube body, which has a lower storage chamber and an upper negative pressure chamber, separated by a baffle plate. One end of the negative pressure filter tube is inserted into the upper negative pressure chamber. The baffle plate is used to prevent some debris from entering the upper negative pressure chamber from the lower storage chamber. Furthermore, the detachably configured vacuuming component and storage component allow debris generated during the vacuuming process to be directly guided into the storage component for centralized storage, preventing debris from directly entering the negative pressure tube. Furthermore, the expansion tube within the storage unit creates a separation structure between the lower storage chamber and the upper negative pressure chamber, further separated by a baffle plate. This allows debris to deposit in the lower storage chamber, preventing it from entering the upper negative pressure chamber with the negative pressure airflow. Since the negative pressure filter tube is inserted into the upper negative pressure chamber, the negative pressure effect is only transmitted to the suction and storage components, thus reducing the path for debris to enter the negative pressure tube. This effectively reduces the probability of clogging in the negative pressure tube and maintains stable suction even after prolonged use.

[0051] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A medical vacuum cleaner head for vacuuming debris from hospital beds, characterized in that, The medical vacuum cleaner head includes: Vacuum-sweeping components; A storage component, one end of which is detachably connected to the suction and sweeping component; the storage component is used to store debris adsorbed by the suction and sweeping component. A negative pressure filter tube, one end of which is detachably connected to the other end of the storage device, and the other end of which is detachably connected to the negative pressure tube; The storage device is provided with an expanded tube body, which is provided with a lower storage chamber and an upper negative pressure chamber, and the lower storage chamber and the upper negative pressure chamber are separated by a baffle plate; one end of the negative pressure filter tube is inserted into the upper negative pressure chamber; the baffle plate is used to prevent some debris from entering the upper negative pressure chamber from the lower storage chamber.

2. The medical vacuum cleaner head according to claim 1, characterized in that, The barrier baffle is detachably provided with a straight section and an arc-shaped section, the arc-shaped section being bent toward the lower storage cavity.

3. The medical vacuum cleaner head according to claim 2, characterized in that, The suction and sweeping component is provided with a connecting bend, one end of which is detachably connected to the expansion tube body. The connecting bend is connected to both the expansion tube body and the suction and sweeping component. A storage hole is provided at the connection between the expansion tube body and the connecting bend. The storage hole is connected to the lower storage cavity, and the straight plate section is located above the storage hole.

4. The medical vacuum cleaner head according to claim 3, characterized in that, The negative pressure filter tube is provided with a filter rod and a connecting pipe, the filter rod is used to be inserted into the upper negative pressure chamber, and the connecting pipe is used to be snapped into the negative pressure tube. The filter rod is provided with a plurality of filter holes.

5. The medical vacuum cleaner head according to claim 4, characterized in that, The length of the filter rod is set to 90% to 95% of the length of the upper negative pressure chamber.

6. The medical vacuum cleaner head according to claim 4, characterized in that, The end of the connecting pipe near the filter rod is provided with an external thread, and the end of the connecting pipe away from the filter rod is provided with a plurality of reverse retaining rings, which are used to engage with the negative pressure pipe.

7. The medical vacuum cleaner head according to claim 6, characterized in that, The expansion tube body has a tapered end away from the connecting bend, the diameter of which is adapted to the diameter of the connecting tube, and an internal thread is provided in the tapered end for screwing into the external thread.

8. The medical vacuum cleaner head according to claim 7, characterized in that, The suction and sweeping components and the storage component can form a suction head body; the suction and sweeping component is also provided with a suction and sweeping body and a brush plate, the other end of the connecting bend is fixedly connected to the suction and sweeping body, the suction and sweeping body is provided with a collection cavity, and the brush plate is used to snap onto the collection cavity.

9. The medical vacuum cleaner head according to claim 8, characterized in that, The brush plate is provided with a number of brush bristles and a number of adsorption holes, the adsorption holes and the number of brush bristles are arranged at intervals, and the number of adsorption holes are connected to the collection cavity.

10. A medical vacuum cleaner, characterized in that, The medical vacuum cleaner includes the medical vacuum head as described in any one of claims 1-9.

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