CN115429472A

CN115429472A - Ward oral care constant temperature pressurization is towards inhaling device

Info

Publication number: CN115429472A
Application number: CN202211172351.1A
Authority: CN
Inventors: 杜福兰; 李兰; 张溦竹; 张晶晶; 王倩; 田梦婷
Original assignee: Affiliated Hospital of North Sichuan Medical College
Current assignee: Affiliated Hospital of North Sichuan Medical College
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-12-06

Abstract

The invention discloses a ward oral care constant-temperature pressurizing flushing and sucking device, which belongs to the technical field of medical instruments and comprises: the utility model discloses a washing machine, including washing and sucking ware, the water inlet intercommunication of washing and sucking ware has the transfusion system, it inhales the switch to install on the washing and sucking ware, the delivery port of washing and sucking ware has the flushing pipe through joint structure intercommunication, the transfusion system is kept away from the one end intercommunication of washing and sucking ware has the pressurization to hold the structure, and in the process of washing, decide to wash the inside brine that the ware controlled aseptic normal saline infusion bag of sucking ware gets into the inside of flushing pipe through washing and sucking the switch to realize washing through the flushing pipe through the slope return bend, and in the suction process, open the suction mouth through washing and sucking the switch control washing and sucking ware, and through the inside negative pressure that produces of central negative pressure box for the negative pressure produces suction and transmits to the flushing pipe through negative pressure drainage tube and negative pressure drainage bottle, realize the suction through flushing pipe and slope return bend, and bear in sucking the flush fluid negative pressure drainage bottle, facilitate the use, the flushing effect is better.

Description

Ward oral care constant temperature pressurization is towards inhaling device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a constant-temperature pressurizing flushing and sucking device for oral care in a ward.

Background

Oral care is a basic care for cleaning and observation of teeth, tongue, palate, cheek and the like in the oral cavity, and is one of the essential means for preventing oral and other infections. The mouth is the initial part of the digestive tract. The anterior part is communicated with the outside through the cleft mouth, and the posterior part is continued with the pharynx through the angina. The front wall of the oral cavity is lip, the side wall is I cheek, the top is palate, the bottom of the oral cavity is mucous membrane and muscle. The oral cavity is divided into an oral cavity vestibule at the front outer side part and an inherent oral cavity at the back inner side part by the upper dental arch and the lower dental arch, and when the upper dental arch and the lower dental arch are occluded, the oral cavity vestibule is communicated with the inherent oral cavity by a gap behind the third molar. At present, when a patient is clinically nursed in the oral cavity, the traditional cotton ball wiping method is influenced by some factors, so that the effect is poor, the patient feels poor, or the operation is inconvenient, for example, the patient is infected in the oral cavity gap and the maxillofacial fracture is caused by limited openness, food residues between the teeth after eating are not easy to clean, and the purpose of cleaning the oral cavity well cannot be achieved by cotton ball wiping; when a patient with injured red lips and oral ulcer is pulled in the operation, the discomfort of the patient with the traditional cotton ball rubbing the oral mucosa is enhanced, and the feeling is not good. Normal temperature normal saline enters the oral cavity in winter, the temperature cannot reach the body sensing temperature, and the feeling of a patient is not good; when the oral nursing operation is performed for a patient, in order to clearly see the conditions in the mouth, an operator often needs to hold a flashlight with one hand and operate with the other hand, the two hands cannot cooperate well, and the operation is inconvenient.

Disclosure of Invention

The invention aims to provide a constant-temperature pressurizing flushing and sucking device for oral care in a ward, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a ward oral care constant temperature pressurization flushing and sucking device comprises: the water inlet of the flushing and sucking device is communicated with an infusion apparatus, a flushing and sucking switch is installed on the flushing and sucking device, the water outlet of the flushing and sucking device is communicated with a flushing pipe through a clamping structure, one end of the infusion apparatus, far away from the flushing and sucking device, is communicated with a pressurizing and containing structure, the outside of the flushing pipe is movably connected with a heating and heat-insulating structure, a light supplementing structure is movably connected onto the flushing pipe, and the outside of the flushing and sucking device is communicated with a negative pressure sucking structure;

the clamping structure is used for fixing the connection between the flushing and sucking device and the flushing pipe, so that the connection stability is ensured;

the pressurized container is used for containing flushing liquid, and the interior of the pressurized container is pressurized, so that the flushing liquid is conveyed into the infusion apparatus;

the heating and heat-preserving structure is used for heating and preserving the physiological saline in the flushing pipe, so that the flushing comfort is ensured;

the light supplementing structure is used for supplementing light in the flushing process;

wherein, the negative pressure suction structure is used for sucking the dirt in the oral cavity through the negative pressure.

Preferably, one end of the flushing pipe, which is far away from the flushing and sucking device, is communicated with an inclined bent pipe, and a plurality of flushing holes are formed in the outer part of the inclined bent pipe.

Preferably, the inclination angle of the inclined elbow is 10-15 degrees.

Preferably, the clamping structure comprises an outer thread, the outer thread is integrally formed on the outer portion of the flushing pipe, the outer thread of the outer thread is connected with a threaded pipe, the outer portion of the threaded pipe is fixedly connected with a clamping sleeve, a fixing ring is fixedly mounted inside the clamping sleeve, the fixing ring is attached to the outer wall of the water outlet of the flushing and sucking device, and the flushing pipe is inserted into the flushing and sucking device.

Preferably, the pressurizing and containing structure comprises a pressurizing mesh bag, the pressurizing mesh bag is communicated with one end, away from the flushing and sucking device, of the infusion apparatus, a sterile normal saline infusion bag is arranged inside the pressurizing mesh bag, a water outlet of the sterile normal saline infusion bag is connected with a water outlet of the pressurizing mesh bag in an inserting mode, the outside of the pressurizing mesh bag is communicated with a first pipe body, and one end, away from the pressurizing mesh bag, of the first pipe body is communicated with a pressurizing air bag.

Preferably, heating insulation construction includes the insulation cover, the inside fixed mounting of insulation cover has the heater strip, the externally mounted of insulation cover has high temperature resistant asbestos cloth, the outside of insulation cover is installed respectively that the magic pastes the son and pastes and the female subsides of magic subsides.

Preferably, the electric control end of the heating wire is connected with a connecting wire, and one end of the connecting wire penetrates through the outer wall of the heat insulation sleeve.

Preferably, the light filling structure comprises a lamp sleeve, the lamp sleeve is sleeved outside the flushing pipe, and a plurality of lamp beads are mounted inside the lamp sleeve.

Preferably, the negative pressure drainage device comprises a negative pressure drainage tube, the negative pressure drainage tube is communicated with a suction liquid outlet end of the flushing and sucking device, one end, away from the flushing and sucking device, of the negative pressure drainage tube is communicated with a negative pressure drainage bottle, the outside of the negative pressure drainage bottle is communicated with a second tube body, and one end, away from the negative pressure drainage bottle, of the second tube body is communicated with a central negative pressure box body.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the flushing and sucking device is provided with the flushing pipe through the clamping structure, and the connection between the flushing pipe and the flushing and sucking device is clamped through adjustment between the outer layer threads and the threaded pipe in the use process, so that the installation and the disassembly are convenient, the flushing and sucking device and the flushing pipe can be separately cleaned and disinfected after the flushing and sucking device is used, the flushing and sucking device can be repeatedly used, and resources are saved;

in the invention, in the flushing process, saline in the sterile normal saline infusion bag is controlled to enter the flushing pipe through the flushing switch and the flushing device, flushing is realized through the flushing pipe through the inclined bent pipe, the pressure air bag enables the flushed normal saline to have certain pressure through pressurization, viscous dirt in a mouth can be better removed, oral cavity nursing is more thorough, in the suction process, the flushing device is controlled to open a suction mouth through the flushing switch, negative pressure is generated in the central negative pressure box body, so that suction force generated by the negative pressure is transmitted into the flushing pipe through the negative pressure drainage pipe and the negative pressure drainage bottle, the flushing fluid is sucked through the flushing pipe and the inclined bent pipe, secretion can be sucked out in time in the oral cavity nursing process, the situations that a patient cannot timely spit or mistakenly swallow the secretion, bloody scabs and sputum to cause nausea and mistaken suction are avoided, various secretions and flushing fluid are sucked out in time, discomfort of the patient is eliminated, the flushing fluid is sucked into the negative pressure drainage bottle to be carried, the oral cavity nursing bottle is convenient to use and has better flushing effect;

in the invention, in the flushing process, when liquid passes through the flushing pipe, a certain heating temperature is generated by the heating wire to heat flushing liquid in the flushing pipe, so that the flushing liquid can enter the inside of the oral cavity of a human body at a constant temperature, stress reaction caused when the supercooled flushing liquid enters the inside of the oral cavity of the human body is avoided, the constant-temperature liquid can also increase the comfort of a patient, meanwhile, the lamp sleeve is sleeved outside the flushing pipe, and the flushing pipe is supplemented with light by the lamp beads to replace the situation in the oral cavity, such as the wound position and the wound situation, whether a suture line drops, whether the suture line is cleaned or not and whether a cotton ball is left or not, a light source emitted by the lamp beads is operated in an online whole process, the hands of workers are liberated, the purposes of better observing and cleaning the oral cavity are achieved, the flushing definition is improved, and the flushing effect is improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a clamping sleeve of the present invention;

FIG. 3 is a schematic view of a partial structure of the insulating jacket according to the present invention;

FIG. 4 is a schematic view of a pressurized pouch according to the present invention in partial cross-section;

FIG. 5 is a schematic view of the lamp housing and lamp bead of the present invention;

FIG. 6 is an enlarged view of the area A in FIG. 1 according to the present invention.

In the figure: 10. a flushing and sucking device; 11. a flushing and sucking switch; 12. an infusion set; 13. a flush tube; 20. pressurizing the mesh bag; 21. a first pipe body; 22. a pressurized air bag; 23. a sterile physiological saline infusion bag; 30. outer layer screw thread; 31. a threaded pipe; 32. clamping the sleeve; 33. a fixing ring; 40. a heat-insulating sleeve; 41. a magic tape; 42. heating wires; 43. high-temperature-resistant asbestos cloth; 44. a magic tape female tape; 45. a connecting wire; 50. a lamp sleeve; 51. a lamp bead; 60. inclining the bent pipe; 61. flushing the hole; 70. a negative pressure drainage tube; 71. a negative pressure drainage bottle; 72. a second tube body; 73. a central negative pressure box body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a ward oral care constant temperature pressurization flushing and sucking device comprises: the device comprises an irrigation and suction device 10, wherein a water inlet of the irrigation and suction device 10 is communicated with a transfusion device 12, an irrigation and suction switch 11 is installed on the irrigation and suction device 10, a water outlet of the irrigation and suction device 10 is communicated with a flushing pipe 13 through a clamping structure, one end, far away from the irrigation and suction device 10, of the transfusion device 12 is communicated with a pressurizing and containing structure, the outside of the flushing pipe 13 is movably connected with a heating and heat-preserving structure, the flushing pipe 13 is movably connected with a light supplementing structure, and the outside of the irrigation and suction device 10 is communicated with a negative pressure suction structure;

the clamping structure is used for fixing the connection between the flushing and sucking device 10 and the flushing pipe 13, so that the connection stability is ensured;

the pressurized container is used for containing washing liquid, and the inside of the pressurized container is pressurized so that the washing liquid is conveyed to the inside of the infusion apparatus 12;

the heating and heat-preserving structure is used for heating and preserving the physiological saline in the flushing pipe 13, so that the flushing comfort is ensured;

As shown in fig. 1-2, the clamping structure is composed of: the clamping structure comprises an outer layer thread 30, the outer layer thread 30 is integrally formed outside the flushing pipe 13, the outer thread of the outer layer thread 30 is connected with a threaded pipe 31, the outer portion of the threaded pipe 31 is fixedly connected with a clamping sleeve 32, a fixing ring 33 is fixedly mounted inside the clamping sleeve 32, the fixing ring 33 is attached to the outer wall of a water outlet of the flushing and sucking device 10, and the flushing pipe 13 is inserted into the flushing and sucking device 10.

As shown in fig. 1-2, the principle of the clamping structure is as follows: in the clamping structure, the connection between the outer layer thread 30 and the threaded pipe 31 is convenient for adjusting the position of the clamping sleeve 32, and the fixing ring 33 is attached to the outer wall of the flushing port of the flushing sucker 10 by rotating the clamping sleeve 32, so that the connection between the flushing sucker 10 and the flushing pipe 13 is clamped.

As shown in fig. 1-4, the composition of the pressurized containment structure: the pressurizing and containing structure comprises a pressurizing mesh bag 20, the pressurizing mesh bag 20 is communicated with one end, far away from the flushing and sucking device 10, of the infusion apparatus 12, a sterile normal saline infusion bag 23 is arranged inside the pressurizing mesh bag 20, a water outlet of the sterile normal saline infusion bag 23 is inserted into a water outlet of the pressurizing mesh bag 20, the outside of the pressurizing mesh bag 20 is communicated with a first pipe body 21, and one end, far away from the pressurizing mesh bag 20, of the first pipe body 21 is communicated with a pressurizing air bag 22.

As shown in fig. 1-4, the principle of the pressurized containment structure: in the pressurized containing structure, the pressurizing air bag 22 is squeezed to inject pressure into the pressurizing mesh bag 20, and after pressure is generated in the pressurizing mesh bag 20, the sterile saline infusion bag 23 is squeezed, so that the saline in the sterile saline infusion bag 23 is conveyed to the flushing and sucking device 10.

In order to disperse the spraying direction of the flushing liquid, one end of the flushing pipe 13, which is far away from the flushing and sucking device 10, is communicated with an inclined bent pipe 60, a plurality of flushing holes 61 are formed in the outer part of the inclined bent pipe 60, the inclination angle of the inclined bent pipe 60 is 10-15 degrees, the flushing liquid can be dispersed through the arrangement of the flushing holes 61, and the arrangement of the inclination angle is convenient for flushing the oral cavity of a human body through the arc angle of the inclination angle.

As shown in fig. 1 to 3, the composition of the heating and heat-insulating structure is as follows: heating insulation construction includes insulation cover 40, and insulation cover 40's inside fixed mounting has heater strip 42, and insulation cover 40's externally mounted has high temperature resistant asbestos cloth 43, and magic subsides are installed respectively to insulation cover 40's outside and are pasted 41 and magic subsides mother and paste 44.

As shown in fig. 1 to 3, the principle of the heating and heat-insulating structure is as follows: in the heating insulation construction, when washing the inside that normal saline got into flushing pipe 13, through starting heater strip 42, produce certain temperature through heater strip 42 and heat the inside normal saline flush fluid of flushing pipe 13, guarantee the constant temperature of flush fluid, and set up high temperature resistant asbestos cloth 43 in insulation cover 40, avoid heater strip 42 direct contact flushing pipe 13, and simultaneously, guarantee the keeping of the inside temperature of insulation cover 40, and paste the setting that 41 and magic subsides female subsides 44 through magic subsides, be convenient for establish the optional position of flushing pipe 13 with insulation cover 40 cover, convenient dismantlement and installation.

In order to supply power to the heating wire 42, the electric control end of the heating wire 42 is connected with a connecting wire 45, one end of the connecting wire 45 penetrates through the outer wall of the heat insulation sleeve 40, the heating wire 42 is subjected to power supply processing through the connecting wire 45, and a storage battery is arranged in the heat insulation sleeve 40 and is also used for supplying power to the heating wire 42.

As shown in fig. 1 to 5, the light supplement structure includes: the light supplementing structure comprises a lamp sleeve 50, the lamp sleeve 50 is sleeved outside the flushing pipe 13, and a plurality of lamp beads 51 are mounted inside the lamp sleeve 50.

As shown in fig. 1 to 5, the principle of the light supplement structure is as follows: in the light filling structure, establish the outside of flushing pipe 13 through lamp cover 50 cover to carry out the light filling through lamp pearl 51 to flushing pipe 13 and handle, make things convenient for the staff to wash the processing.

As shown in fig. 1, the composition of the negative pressure suction structure: the negative pressure suction structure comprises a negative pressure drainage tube 70, the negative pressure drainage tube 70 is communicated with a suction liquid outlet end of the flushing and sucking device 10, one end of the negative pressure drainage tube 70, which is far away from the flushing and sucking device 10, is communicated with a negative pressure drainage bottle 71, the outside of the negative pressure drainage bottle 71 is communicated with a second tube body 72, and one end of the second tube body 72, which is far away from the negative pressure drainage bottle 71, is communicated with a central negative pressure box body 73.

As shown in fig. 1, the principle of the negative pressure suction structure: in the negative pressure suction structure, negative pressure is generated through the central negative pressure tank 73 and is transmitted to the inside of the second tube 72, the negative pressure is transmitted into the inside of the negative pressure drainage bottle 71 through the second tube 72, the negative pressure inside the negative pressure drainage bottle 71 is transmitted into the rinsing pipe 13 through the negative pressure drainage pipe 70, the suction of the rinsing liquid is realized through the rinsing pipe 13, and the operator controls the pipeline of the suction device 10 through the suction switch 11, the rinsing liquid sucked through the rinsing pipe 13 is transmitted into the inside of the negative pressure drainage pipe 70, and is transmitted into the inside of the negative pressure drainage bottle 71 through the negative pressure drainage pipe 70.

According to the technical scheme, the working steps of the scheme are summarized and carded: in the using process, when a worker needs to wash, a washing channel of the flushing and sucking device 10 is opened through the flushing and sucking switch 11, the flushing and sucking device 10 adopts a laparoscope flusher, pressure is injected into the pressurizing mesh bag 20 through the squeezing and pressurizing air bag 22, the sterile saline infusion bag 23 can be squeezed after pressure is generated inside the pressurizing mesh bag 20, so that the saline inside the sterile saline infusion bag 23 is conveyed into the flushing and sucking device 10, the flushing saline is conveyed into the flushing pipe 13 through the flushing and sucking device 10, the flushing fluid is conveyed into the inclined bent pipe 60 through the flushing pipe 13, the flushing fluid is sprayed out through the inclined bent pipe 60 in cooperation with the flushing hole 61, the saline flushing fluid inside the flushing pipe 13 is heated at a certain temperature through the heating wire 42 by starting the heating wire 42 in the washing process, the constant temperature of the flushing fluid is ensured, and the high-temperature-resistant asbestos cloth 43 is arranged in the heat-preserving sleeve 40, the heating wire 42 is prevented from directly contacting the flushing pipe 13, meanwhile, the internal temperature of the heat insulation sleeve 40 is kept, the heat insulation sleeve 40 is conveniently sleeved on any position of the flushing pipe 13 through the arrangement of the magic tape sticker 41 and the magic tape female sticker 44, the disassembly and the assembly are convenient, the flushing pipe 13 can be supplemented with light through the lamp beads 51 in the flushing process, negative pressure is generated through the central negative pressure box 73 and is transmitted into the second pipe body 72 in the suction process, the negative pressure is transmitted into the negative pressure drainage bottle 71 through the second pipe body 72, the negative pressure in the negative pressure drainage bottle 71 is transmitted into the flushing pipe 13 through the negative pressure drainage pipe 70, the flushing liquid is sucked through the flushing pipe 13, a worker controls the pipeline of the flushing and sucking device 10 through the flushing and sucking switch 11, the flushing liquid sucked through the flushing pipe 13 is transmitted into the negative pressure drainage pipe 70, and is conveyed into the negative pressure drainage bottle 71 through the negative pressure drainage tube 70 to complete the suction of the washing liquid.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ward oral care constant temperature pressurization is towards inhaling device which characterized in that includes: the flushing and sucking device comprises a flushing and sucking device (10), wherein a water inlet of the flushing and sucking device (10) is communicated with an infusion apparatus (12), a flushing and sucking switch (11) is installed on the flushing and sucking device (10), a water outlet of the flushing and sucking device (10) is communicated with a flushing pipe (13) through a clamping structure, one end, far away from the flushing and sucking device (10), of the infusion apparatus (12) is communicated with a pressurizing and containing structure, the outside of the flushing pipe (13) is movably connected with a heating and heat-insulating structure, a light supplementing structure is movably connected onto the flushing pipe (13), and the outside of the flushing and sucking device (10) is communicated with a negative pressure suction structure;

the clamping structure is used for fixing the connection between the flushing and sucking device (10) and the flushing pipe (13) so as to ensure the connection stability;

the pressurized container is used for containing flushing liquid, and the flushing liquid is conveyed to the inside of the infusion apparatus (12) by pressurizing the inside;

the heating and heat-preserving structure is used for heating and preserving the physiological saline in the flushing pipe (13) so as to ensure the flushing comfort;

2. The ward oral care constant-temperature pressurizing flushing and sucking device as claimed in claim 1, wherein: one end, far away from the flushing and sucking device (10), of the flushing pipe (13) is communicated with an inclined bent pipe (60), and a plurality of flushing holes (61) are formed in the outer portion of the inclined bent pipe (60).

3. The ward oral care constant-temperature pressurizing flushing and sucking device as claimed in claim 2, wherein: the inclination angle of the inclined elbow pipe (60) is 10-15 degrees.

4. The ward oral care constant-temperature pressurizing flushing and sucking device as claimed in claim 1, wherein: the clamping structure comprises an outer thread (30), the outer thread (30) is integrally formed in the outer portion of the flushing pipe (13), the outer thread of the outer thread (30) is connected with a threaded pipe (31), the outer fixed connection of the threaded pipe (31) is connected with a clamping sleeve (32), a fixing ring (33) is fixedly mounted inside the clamping sleeve (32), the fixing ring (33) is attached to the outer wall of a water outlet of the flushing and sucking device (10), and the flushing pipe (13) is inserted into the flushing and sucking device (10).

5. The ward oral care constant temperature pressurization flushing and sucking device according to claim 1, characterized in that: the pressurization holds the structure and includes pressurization pocket (20), pressurization pocket (20) with transfusion system (12) are kept away from the one end of flushing and sucking ware (10) is linked together, the inside of pressurization pocket (20) is provided with aseptic normal saline infusion bag (23), the delivery port of aseptic normal saline infusion bag (23) peg graft in the delivery port of pressurization pocket (20), the outside intercommunication of pressurization pocket (20) has first body (21), first body (21) are kept away from the one end intercommunication of pressurization pocket (20) has pressurization gasbag (22).

6. The ward oral care constant-temperature pressurizing flushing and sucking device as claimed in claim 1, wherein: heating insulation construction includes insulation cover (40), the inside fixed mounting of insulation cover (40) has heater strip (42), the externally mounted of insulation cover (40) has high temperature resistant asbestos cloth (43), the outside of insulation cover (40) is installed the magic respectively and is pasted sub-subsides (41) and the female subsides (44) of magic subsides.

7. The ward oral care constant-temperature pressurizing flushing and sucking device according to claim 6, characterized in that: the electric control end of the heating wire (42) is connected with a connecting wire (45), and one end of the connecting wire (45) penetrates through the outer wall of the heat-insulating sleeve (40).

8. The ward oral care constant temperature pressurization flushing and sucking device according to claim 1, characterized in that: the light supplementing structure comprises a lamp sleeve (50), the lamp sleeve (50) is sleeved outside the flushing pipe (13), and a plurality of lamp beads (51) are mounted inside the lamp sleeve (50).

9. The ward oral care constant temperature pressurization flushing and sucking device according to claim 1, characterized in that: the negative pressure suction structure comprises a negative pressure drainage tube (70), the negative pressure drainage tube (70) is communicated with a suction liquid outlet end of the flushing and sucking device (10), one end, far away from the flushing and sucking device (10), of the negative pressure drainage tube (70) is communicated with a negative pressure drainage bottle (71), the outside of the negative pressure drainage bottle (71) is communicated with a second tube body (72), and one end, far away from the negative pressure drainage bottle (71), of the second tube body (72) is communicated with a central negative pressure box body (73).