CN113797720A

CN113797720A - Anesthetic gas recovery device

Info

Publication number: CN113797720A
Application number: CN202111196641.5A
Authority: CN
Inventors: 刘博�; 王丽娟; 高文龙; 赵军博; 杨波
Original assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Current assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-12-17

Abstract

The utility model provides an anesthetic gas recovery unit, including the collecting box, negative pressure suction device, spray absorbing device, the intercommunication has fixed pipe on the lateral wall on the collecting box, be equipped with conversion equipment on the fixed pipe, conversion equipment includes outer barrel, the expansion pipe, threaded connection between expansion pipe and the fixed pipe, the end-to-end connection of expansion pipe has the extension pipe, be equipped with the opening on the lateral wall of expansion pipe, be equipped with first installation department and second installation department in the expansion pipe, one side of first installation department and second installation department all is equipped with annular backup pad, be equipped with cowl between first installation department and the second installation department, filter assembly is installed in turn to first installation department and second installation department, be equipped with first storage portion and second storage portion on the outer barrel inner wall, a push rod is installed to the bottom of first storage portion and second storage portion, the push rod with sealing connection between the outer barrel. The invention improves the absorption efficiency and avoids secondary leakage.

Description

Anesthetic gas recovery device

Technical Field

The invention belongs to the technical field of equipment for anesthesia, and particularly relates to an anesthetic gas recovery device.

Background

The anesthesia department is a comprehensive subject, which contains knowledge of multiple subjects, has a wide range, not only meets the requirements of operations, but also adds rescue work of each department, and anesthesia department doctors ensure that patients can successfully receive operation treatment under painless and safe conditions, which is the basic task of anesthesia clinic, but the anesthesia work also only contains partial work content of modern anesthesia departments.

In the use process of anesthetic gas, the anesthetic gas cannot be completely absorbed and can be discharged in the air along with the respiratory gas of a patient, the concentration of the anesthetic gas in a room is high due to long-time accumulation, physical and mental damage to medical staff can be caused, and even life danger can be caused seriously.

The existing recovery device for anesthetic gas is inconvenient for the replacement of the adsorption layer, needs to stop working in the replacement process, and is easy to cause secondary leakage.

Disclosure of Invention

The invention aims to provide an anesthetic gas recovery device which can well recover anesthetic gas, is convenient for replacing a filter assembly under a closed condition, improves absorption efficiency and avoids secondary leakage.

The invention provides an anesthetic gas recovery device, which comprises a collecting box, wherein a negative pressure suction device and a spray absorption device are arranged in the collecting box, a fixed pipe is communicated with the side wall of the collecting box, a conversion device is arranged on the fixed pipe, the conversion device comprises an outer cylinder body which is sleeved at one end of the fixed pipe and is communicated with the fixed pipe, the other end of the outer cylinder body is in threaded connection with a movable pipe, one end of the movable pipe is positioned in the outer cylinder body and is inserted into the fixed pipe, the movable pipe is in threaded connection with the fixed pipe, the tail end of the movable pipe is connected with an extension pipe, an opening is arranged on the outer side wall of a threaded section of the movable pipe, a first mounting part and a second mounting part which are positioned at the opening part are arranged in the movable pipe, and annular supporting plates which are fixed on the inner wall of the movable pipe are arranged on one side of the first mounting part and one side of the second mounting part, keep apart through cowl between first installation department and the second installation department, filtering component, every are installed in turn to first installation department and second installation department be equipped with in the annular support plate and be used for the location filtering component's pin, be equipped with the first storage portion and the second storage portion that are used for storing filtering component who is located the movable tube below on the inner wall of outer barrel, conversion equipment has the opening downwards and first storage position corresponds from top to bottom and the position that corresponds from top to bottom of second storage portion and second installation department with first installation department, the bottom of first storage portion and second storage portion slidable mounting respectively has a push rod, the lateral wall that the one end of push rod runs through outer barrel stretches out outer barrel, the push rod with sealing connection between the outer barrel.

Preferably, the spraying and absorbing device comprises a pump body, a liquid storage part, a water pipe, a motor, a connecting shaft and a spraying disc, the bottom of the collecting box is the liquid storage part, the pump body is arranged in the liquid storage part, the water pipe with one end extending to the top of the collecting box is communicated with the pump body, the spraying disc is arranged on the top wall of the collecting box through the connecting shaft, one end of the connecting shaft is connected to the motor, the spraying disc is of a box body structure, the output end of the water pipe is arranged above the spraying disc, and a plurality of water outlet holes are formed in the bottom wall of the spraying disc.

Preferably, be equipped with on the movable tube and be located the inside spacing boss of outer barrel, under the effect of spacing boss, the movable tube can not break away from completely with fixed pipe.

Preferably, the movable pipe is provided with a containing groove at the bottom of the first installation part and the second installation part, a conversion frame in rotary connection is arranged in the containing groove, the conversion frame comprises a first swing arm and a second swing arm, the first swing arm is located at the first installation part, the second swing arm is located at the second installation part, and when the first swing arm is hidden in the containing groove, the second swing arm protrudes out of the containing groove; when the second swing arm is hidden in the holding tank, first swing arm protrusion holding tank, first swing arm and first swing arm protrusion holding tank can release the filtering component in corresponding first installation department or the second installation department.

Preferably, the end face of the annular supporting plate is provided with a plurality of air holes with local circumferences.

Preferably, the outer cylinder is provided with an openable cover, the cover is buckled and covered on the outer cylinder to seal the outer cylinder, the push rod is installed on the cover, the first storage part and the second storage part are both arranged on the cover, and the opening part of the movable pipe cannot be communicated with the outside through the cover part.

Preferably, the extension pipe is a hose, an air suction port is arranged at the tail end of the extension pipe, and a concentration sensor is arranged on the air suction port.

Preferably, a liquid inlet is arranged on the upper portion of the side wall of the collecting box, and a liquid outlet communicated with the liquid storage portion is arranged on the side wall of the bottom of the collecting box.

Preferably, the negative pressure suction device is mounted on a side wall opposite to a mounting position of the fixed pipe.

Preferably, the filter assembly comprises a filter screen layer and an activated carbon layer, and the filter screen layer is positioned on the front side of the activated carbon layer along the air inlet direction.

In conclusion, the sealing structure between the sealing outer cylinder structure and the movable pipe and the fixed pipe is arranged, and the sealing structures at the two positions are matched with each other, so that the full sealing effect in the working process can be realized, the leakage generated in the absorption process is avoided, the filter assembly can be conveniently replaced, and the better gas absorption and filter effects are ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

FIG. 2 is a front sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 of the present invention (with the opening open);

FIG. 4 is an enlarged view of a portion of FIG. 2 of the present invention (with the opening in the stationary tube);

FIG. 5 is an enlarged view of a portion of FIG. 3 of the present invention;

FIG. 6 is a perspective view of the tube of the present invention;

FIG. 7 is a perspective view II of the tube of the present invention;

FIG. 8 is an axial view of the movable tube of the present invention;

FIG. 9 is a view of the outer barrel of the present invention;

FIG. 10 is a cross-sectional view of the stationary tube and outer cylinder arrangement of the present invention;

FIG. 11 is a top plan view of the spray plate of the present invention;

fig. 12 is a block diagram of the filter assembly of the present invention.

In the figure; 1. a collection box; 2. a negative pressure suction device; 3. a fixed tube; 4. an outer cylinder; 5. a movable tube; 6. an extension pipe; 7. an opening; 8. a first mounting portion; 9. a second mounting portion; 10. an annular support plate; 11. an arc-shaped baffle plate; 12. a pin; 13. a first storage unit; 14. a second storage section; 15. a push rod; 16. a pump body; 17. a liquid storage part; 18. a water pipe; 19. a motor; 20. a connecting shaft; 21. spraying a disc; 22. a limiting boss; 23. a conversion frame; 24. a first swing arm; 25. a second swing arm; 26. air holes are formed; 27. a cover body; 28. a concentration sensor; 29. a screen layer; 30. and an activated carbon layer.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides an anesthetic gas recovery device, as shown in fig. 1-12, comprising a collection box 1, wherein a negative pressure suction device 2 and a spraying absorption device are arranged in the collection box 1, the negative pressure suction device 2 is used for providing the pressure of absorbed gas, and a fan is used as power input; the spray absorption device is used for absorbing anesthetic gas through liquid, and one embodiment is as follows: the spraying absorption device comprises a pump body 16, a liquid storage part 17, a water pipe 18, a motor 19, a connecting shaft 20 and a spraying disc 21, wherein the liquid storage part 17 is arranged at the bottom of the collecting box 1, the pump body 16 is arranged in the liquid storage part 17, the pump body 16 is communicated with the water pipe 18, one end of the water pipe 18 extends to the top of the collecting box 1, the spraying disc 21 is installed on the top wall of the collecting box 1 through the connecting shaft 20, one end of the connecting shaft 20 is connected to the motor 19, the spraying disc 21 is of a box body structure, the output end of the water pipe 18 is arranged above the spraying disc 21, a plurality of water outlet holes are formed in the bottom wall of the spraying disc 21, gas entering the collecting box 1 is absorbed, and the gas can be fully absorbed under the liquid effect of rain clothes.

In the invention, the side wall of the collecting box 1 is communicated with a fixed pipe 3, the tail end of the fixed pipe 3 is connected with an extension pipe 6, the extension pipe 6 generally adopts a hose structure, the end part of the extension pipe is provided with an air suction port, and a concentration sensor 28 is arranged, the concentration sensor 28 can detect the concentration of anesthetic gas in the environment, and the air suction port is conveniently placed at a position with higher concentration for absorbing the gas.

The invention is provided with a conversion device on a fixed pipe 3, wherein the conversion device comprises an outer cylinder 4 which is sleeved at one end of the fixed pipe 3 and is mutually communicated with the fixed pipe 3, the other end of the outer cylinder 4 is in threaded connection with a movable pipe 5, one end of the movable pipe 5 is positioned in the outer cylinder 4 and is inserted into the fixed pipe 3, the movable pipe 5 is in threaded connection with the fixed pipe 3, the movable pipe 5 and the fixed pipe 3 are always in a connection state in the working process, and the movable pipe 5 and the fixed pipe 3 can not be separated from each other, wherein a limiting boss 22 is arranged on the outer wall of the movable pipe 5 and is used for limiting the position of the movable pipe 5 which is screwed to the outside of the fixed pipe 3, so as to avoid the separation of the movable pipe 5 and the fixed pipe. An opening 7 is arranged on the outer side wall of the threaded section of the movable pipe 5, the opening 7 can enter the fixed pipe 3 to be in a sealed state along with the screwing of the movable pipe 5 in the working process or be separated from the fixed pipe 3 to be in an opened state, a first mounting part 8 and a second mounting part 9 which are positioned at the opening 7 are arranged in the movable pipe 5, annular supporting plates 10 which are fixed on the inner wall of the movable pipe 5 are respectively arranged on one sides of the first mounting part 8 and the second mounting part 9, the first mounting part 8 and the second mounting part 9 are isolated by an arc-shaped baffle plate 11, the first mounting part 8 and the second mounting part 9 are alternately provided with filtering components, namely, one of the first mounting part 8 and the second mounting part 9 is provided with the filtering component at the same time, and in the replacing process of the filtering component, the filtering components are sequentially and alternately arranged in the first mounting part 8 and the second mounting part 9, for example, the previous filter assembly is mounted in the first mounting portion 8, and the next filter assembly is mounted in the second mounting portion 9, which are sequentially circulated.

Each annular supporting plate 10 is provided with a pin 12 for positioning the filtering component, wherein the filtering component is arranged in the first installation part 8 and the second installation part 9 and is positioned jointly through the annular supporting plate 10, the arc-shaped baffle plate 11 and the pin 12, the filtering component realizes the limitation of the position in the axial direction under the action of the annular supporting plate 10 and the arc-shaped baffle plate 11 and realizes the limitation of the radial position under the action of the pin 12, the inner wall of the outer cylinder body 4 is provided with a first storage part 13 and a second storage part 14 which are positioned below the movable tube 5 and are used for storing the filtering component, the conversion device is provided with an opening 7 which is downward, the first storage part 13 is vertically corresponding to the first installation part 8, the second storage part 14 is vertically corresponding to the second installation part 9, and the opening 7 can be rotated to the position which is relatively communicated with the first storage part 13 and the second storage part 14 along with the rotation of the movable tube 5, at this time, the filter assembly can be replaced, and it should be noted that, in the replacement process of the filter assembly, the outer cylinder 4 is in a sealed state, in the present invention, a push rod 15 is slidably mounted at the bottom of each of the first storage portion 13 and the second storage portion 14, one end of the push rod 15 penetrates through the side wall of the outer cylinder 4 and extends out of the outer cylinder 4, and the push rod 15 is connected with the outer cylinder 4 in a sealed manner, so that the filter assembly of the first storage portion 13 or the second storage portion 14 can be pushed into the first mounting portion 8 or the second mounting portion 9 by pushing the corresponding push rod 15, which is also illustrated for convenience of understanding; assuming that a filter assembly is arranged in the first mounting part 8 in an initial state, no filter assembly is arranged in the second mounting part 9, a filter assembly to be replaced is arranged in the second storage part 14 in the outer cylinder 4 in advance, when the position of the opening 7 of the movable tube 5 is rotated to a position where replacement can be carried out, the filter assembly in the second storage part 14 is pushed into the second mounting part 9 by pushing the push rod 15 corresponding to the position of the second storage part 14 (because the positions of the movable tube 5 at the bottom of the first mounting part 8 and the second mounting part 9 are provided with the accommodating grooves, the accommodating grooves are internally provided with the conversion frame 23 which is connected in a rotating way, the conversion frame 23 comprises a first swing arm 24 and a second swing arm 25, the first swing arm 24 is arranged at the first mounting part 8, the second swing arm 25 is arranged at the second mounting part 9, when the first swing arm 24 is hidden in the accommodating groove, the second swing arm 25 is protruded, when the second swing arm 25 is hidden in the accommodating groove, a first swing arm 24 protruding and receiving groove, and the first swing arm 24 and the second swing arm protruding and receiving groove can push out the filter assembly in the corresponding first mounting part 8 or second mounting part 9); after the filter assembly propelling movement of second storage unit 14 gets into second installation department 9 like this, filter assembly can promote second swing arm 25 and get into in the holding tank, simultaneously through the rotation of conversion frame 23, can make a swing arm protrusion holding tank, it is ejecting to be originally at the filter assembly of first installation department 8, ejecting filter assembly can fall into first storage unit 13 under the effect of gravity, accomplish filter assembly's change this moment, twist movable tube 5 soon, make opening 7 get into fixed pipe 3 in the back completely, can open lid 27 this moment and realize taking out and changing the filter assembly under the replacement, the operation this moment can not influence the sealed effect of absorption process.

It can be seen from the above process that the replacement process of the filter assembly is always in an isolated state from the external connection, so that leakage can be avoided, and the gas absorption does not need to be stopped in the replacement process.

According to the invention, the limiting boss 22 positioned in the outer cylinder 4 is arranged on the movable tube 5, the movable tube 5 and the fixed tube 3 cannot be completely separated under the action of the limiting boss 22, and the limiting boss 22 is also used for limiting the position of the opening 7 after the movable tube 5 rotates, so that the position of the opening 7 can be well arranged corresponding to the first storage part 13 and the second storage part 14.

The end face of the annular supporting plate 10 is provided with a plurality of air holes 26 with local circumference, as shown in figures 6, 7 and 8, so that the air suction effect can be improved.

The invention is provided with an openable cover body 27 on the outer cylinder body 4, the cover body 27 covers the outer cylinder body 4 to realize the sealing of the outer cylinder body 4, the push rod 15 is arranged on the cover body 27, the first storage part 13 and the second storage part 14 are both arranged on the cover body 27, and the opening 7 part of the movable pipe 5 is not communicated with the outside through the cover body 27 part.

According to the invention, the upper part of the side wall of the collecting box 1 is provided with the liquid inlet, and the side wall of the bottom of the collecting box 1 is provided with the liquid outlet communicated with the liquid storage part 17, so that liquid can be discharged and replaced.

The negative pressure suction device 2 is arranged on the side wall opposite to the installation position of the fixed pipe 3, so that gas can better pass through the spraying position, and the absorbing effect of red is better realized.

The filter assembly comprises a filter screen layer 29 and an activated carbon layer, wherein the filter screen layer 29 is positioned on the front side of the activated carbon layer along the air inlet direction, as shown in figure 12, in the actual use process, the filter assembly can also only have the activated carbon layer or be designed into a three-layer structure, and the filter screen layer 29, the water absorption layer and the activated carbon layer are sequentially arranged from the air inlet direction. 30

According to the invention, through arranging the sealable outer cylinder body 4 structure and the sealing structure between the movable pipe 5 and the fixed pipe 3, and through the mutual matching of the two sealing structures, the full sealing effect in the working process can be realized, the leakage generated in the absorption process is avoided, meanwhile, the filter assembly can be conveniently replaced, and the better gas absorption and filter effects are ensured.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The anesthetic gas recovery device is characterized by comprising a collecting box (1), wherein a negative pressure suction device (2) and a spraying absorption device are arranged in the collecting box (1), a fixed pipe (3) is communicated on the side wall of the collecting box (1), a conversion device is arranged on the fixed pipe (3), the conversion device comprises an outer barrel (4) which is sleeved at one end of the fixed pipe (3) and is mutually communicated with the fixed pipe (3), the other end of the outer barrel (4) is in threaded connection with a movable pipe (5), one end of the movable pipe (5) is positioned inside the outer barrel (4) and is inserted into the fixed pipe (3), the movable pipe (5) is in threaded connection with the fixed pipe (3), the tail end of the movable pipe (5) is connected with an extension pipe (6), an opening (7) is formed in the outer side wall of the thread section of the movable pipe (5), a first installation part (8) and a second installation part (9) which are positioned at the position of an opening (7) are arranged in the movable pipe (5), annular supporting plates (10) fixed on the inner wall of the movable pipe (5) are arranged on one sides of the first installation part (8) and the second installation part (9), the first installation part (8) and the second installation part (9) are isolated through arc-shaped baffles (11), filtering components are alternately installed on the first installation part (8) and the second installation part (9), a pin (12) used for positioning the filtering components is arranged on each annular supporting plate (10), a first storage part (13) and a second storage part (14) which are positioned below the movable pipe (5) and used for storing the filtering components are arranged on the inner wall of the outer barrel body (4), the conversion device is provided with positions where the opening (7) faces downwards, the first storage part (13) corresponds to the first installation part (8) up and down, and the second storage part (14) corresponds to the second installation part (9) up and down, the bottom of first memory portion (13) and second memory portion (14) slidable mounting respectively has a push rod (15), the lateral wall that outer barrel (4) were run through to the one end of push rod (15) stretches out outer barrel (4), push rod (15) with sealing connection between outer barrel (4).

2. The anesthetic gas recovery device according to claim 1, wherein the spray absorption device comprises a pump body (16), a liquid storage portion (17), a water pipe (18), a motor (19), a connecting shaft (20) and a spray disc (21), the liquid storage portion (17) is arranged at the bottom of the collection box (1), the pump body (16) is arranged in the liquid storage portion (17), the water pipe (18) with one end extending to the top of the collection box (1) is communicated with the pump body (16), the spray disc (21) is arranged on the top wall of the collection box (1) through the connecting shaft (20), one end of the connecting shaft (20) is connected to the motor (19), the spray disc (21) is of a box body structure, the output end of the water pipe (18) is arranged above the spray disc (21), and a plurality of water outlet holes are formed in the bottom wall of the spray disc (21).

3. The anesthetic gas recovery device according to claim 2, wherein the movable tube (5) is provided with a limit boss (22) located inside the outer cylinder (4), and the movable tube (5) and the fixed tube (3) cannot be completely separated under the action of the limit boss (22).

4. The anesthetic gas recovery apparatus according to claim 1, wherein the movable tube (5) is provided with an accommodating groove at the bottom of the first mounting portion (8) and the second mounting portion (9), the accommodating groove is provided with a conversion frame (23) rotatably connected therein, the conversion frame (23) comprises a first swing arm (24) and a second swing arm (25), the first swing arm (24) is located at the first mounting portion (8), the second swing arm (25) is located at the second mounting portion (9), and when the first swing arm (24) is hidden in the accommodating groove, the second swing arm (25) protrudes out of the accommodating groove; when second swing arm (25) hide in the holding tank, first swing arm (24) protrusion holding tank, first swing arm (24) and first swing arm protrusion holding tank can be released the filter assembly in corresponding first installation department (8) or second installation department (9).

5. The anesthetic gas recovery apparatus as claimed in claim 1, wherein the annular support plate (10) has a plurality of circumferentially spaced vent holes (26) formed in an end surface thereof.

6. The anesthetic gas recovery apparatus according to claim 1, wherein the outer cylinder (4) is provided with an openable cover (27), the cover (27) is fastened to the outer cylinder (4) to seal the outer cylinder (4), the push rod (15) is mounted on the cover (27), the first storage portion (13) and the second storage portion (14) are both disposed on the cover (27), and the opening (7) of the movable tube (5) is not communicated with the outside through the cover (27).

7. The anesthetic gas recovery apparatus according to claim 1, wherein the extension tube (6) is a flexible tube, and a suction port is provided at a distal end of the extension tube (6), and a concentration sensor (28) is provided at the suction port.

8. The anesthetic gas recovery apparatus as claimed in claim 1, wherein a liquid inlet is provided on an upper portion of a sidewall of the collection box (1), and a liquid outlet communicated with the liquid storage portion (17) is provided on a sidewall of a bottom of the collection box (1).

9. The anesthetic gas recovery apparatus as claimed in claim 1, wherein the negative pressure suction device (2) is installed on a side wall opposite to a position where the fixed tube (3) is installed.

10. The anesthetic gas recovery apparatus as claimed in any of claims 1-9, characterized in that the filter assembly comprises a filter layer (29) and an activated carbon layer, the filter layer (29) being located on a front side of the activated carbon layer in an air intake direction.