A filtered exhaust system for gases in an operating room

Abstract

This invention relates to the field of operating room gas filtration technology, specifically to a gas filtration and emission system for operating rooms. The system includes a housing with an inlet slot on the top side and a dust filter chamber communicating with the inlet slot on the inner side of the top of the housing. A slot on the top side of the housing communicates with the dust filter chamber, and a filter plate is disposed in the slot. A dust collection chamber is located at the bottom of the dust filter chamber near the inlet slot. A circular groove is provided on the side wall of the dust filter chamber, and a receiving cavity is provided on the side wall of the circular groove. A limiting slot is provided on the housing communicating with the receiving cavity. A fixing shaft is provided on one side of the filter plate, and a locking element is disposed in the receiving cavity. The fixing shaft is inserted into the slot and connected to the locking element. The locking element of this invention can be used to fix the filter plate and also to vibrate the filter plate to facilitate the removal and collection of dust, allowing for multiple uses.

Description

Technical Field

[0001] This invention relates to the field of operating room gas filtration technology, specifically to a gas filtration and emission system for operating rooms. Background Technology

[0002] Volatile anesthetics are halides closely linked to ozone-depleting chlorofluorocarbons (CFCs), making them a major component of ozone layer depletion. Furthermore, less than 5% of inhaled anesthetics are metabolized by patients; the majority is exhaled almost unchanged, accumulating in the room. Currently, most anesthesia machines lack exhaust systems, directly releasing anesthetic gases into the operating room. This not only risks secondary inhalation by patients, affecting the dosage, but also impacts the work of medical staff, causing dizziness, fatigue, and lethargy in the short term. Due to their profession, long-term exposure to anesthetic fumes increases the risk of miscarriage, infertility, and birth defects, threatening the health of medical personnel.

[0003] Existing equipment, due to the lack of separate dust filtration or untimely replacement, requires frequent replacement of the filter cartridges used to adsorb anesthetic components, resulting in high consumption and reduced filtration efficiency. Summary of the Invention

[0004] To address the aforementioned shortcomings, the purpose of this invention is to provide a filtration and emission system for gases in an operating room.

[0005] This invention provides the following technical solution:

[0006] A gas filtration and emission system for an operating room includes a housing, an inlet slot on the top side of the housing, a dust filter chamber communicating with the inlet slot on the inner side of the top of the housing, a slot communicating with the dust filter chamber on the top side of the housing, a filter plate in the slot, and a dust collection chamber at the bottom of the dust filter chamber near the inlet slot.

[0007] The dust filter chamber has a circular groove on its side wall, and a receiving cavity is provided on the side wall of the circular groove. The box body has a limiting slot hole that communicates with the receiving cavity.

[0008] A fixed shaft is provided on one side of the filter plate, and a locking element is provided in the accommodating cavity. The fixed shaft is inserted into the slot and connected to the locking element.

[0009] As a preferred technical solution for a gas filtration and emission system in an operating room, the locking component includes a rotating shaft and a pulling shaft. The rotating shaft is disposed in the accommodating cavity, one end of the pulling shaft is sleeved on the rotating shaft, and the rotating shaft is connected to the fixed shaft.

[0010] As a preferred technical solution for a gas filtration and emission system in an operating room, a limiting ring is provided on the outer side of one end of the rotating shaft, a first circular cavity is provided on the inner side of the rotating shaft, a first convex ball is provided in the first circular cavity, and a first guide groove is provided on the outer side of the rotating shaft.

[0011] As a preferred technical solution for a gas filtration and emission system in an operating room, the pull shaft is provided with a second circular cavity, the second circular cavity is provided with a second convex ball, the rotating shaft is embedded in the second circular cavity, and the second convex ball is embedded in the first guide groove.

[0012] As a preferred technical solution for a gas filtration and emission system in an operating room, the pull shaft is provided with a groove communicating with the second circular cavity, and an arc plate is formed on the pull shaft, the arc plate passing through the limiting groove hole.

[0013] As a preferred technical solution for a gas filtration and emission system in an operating room, a pull ring is provided at the end of the pull shaft, and the pull ring is located outside the housing.

[0014] As a preferred technical solution for a gas filtration and emission system in an operating room, the rotating shaft is also provided with an annular groove, which is located on the rotating shaft near the end of the limiting ring.

[0015] As a preferred technical solution for a gas filtration and emission system in an operating room, the fixed shaft is provided with a second guide groove, the fixed shaft is embedded in the first circular cavity, and the first convex ball is embedded in the second guide groove;

[0016] The filter plate is equipped with a filter screen.

[0017] As a preferred technical solution for a gas filtration and emission system in an operating room, the housing is further provided with a purification chamber, the purification chamber is provided with a filter element, the purification chamber and the dust filtration chamber are connected by a connecting pipe, and an air pump is provided in the connecting pipe;

[0018] The housing is also provided with an exhaust vent that communicates with the purification chamber.

[0019] As a preferred technical solution for a gas filtration and emission system in an operating room, an inlet screen is embedded in the inlet slot, and a dust collection drawer is provided in the dust collection chamber.

[0020] The beneficial effects of the present invention are as follows: The locking component of the present invention can be used to fix the filter plate, and at the same time, it can be used to vibrate the filter plate to facilitate the removal and collection of dust. After repeated use, it can also assist in pushing the filter plate out for easy disassembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 2 This is a schematic diagram of the gas flow path in a gas filtration and emission system for an operating room according to the present invention.

[0024] Figure 3 This is a schematic diagram of the internal structure of the housing in a gas filtration and emission system for an operating room according to the present invention.

[0025] Figure 4 This is a schematic diagram of the locking component in this invention;

[0026] Figure 5 This is a schematic diagram of the structure of the rotating shaft in this invention;

[0027] Figure 6 This is a schematic diagram of the filter plate structure in this invention;

[0028] In the diagram: 1. Box body; 2. Inlet slot; 3. Dust filter chamber; 4. Slot; 5. Filter plate; 6. Dust collection chamber; 31. Circular groove; 32. Receiving cavity; 33. Limiting slot hole; 7. Fixed shaft; 8. Locking component; 81. Rotating shaft; 82. Pull shaft; 811. Limiting ring; 812. First circular cavity; 813. First convex ball; 814. First guide groove; 821. Second circular cavity; 822. Second convex ball; 823. Interval groove; 824. Pull ring; 815. Ring groove; 816. Straight groove; 71. Second guide groove; 51. Filter screen; 9. Purification chamber; 91. Filter element; 92. Connecting pipe; 93. Air pump; 94. Exhaust hole; 21. Inlet screen; 61. Dust collection drawer. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of one or more embodiments of the present invention.

[0030] It should be noted that the steps of the corresponding methods in other embodiments are not necessarily performed in the order shown and described in this invention. In some other embodiments, the methods may include more or fewer steps than those described in this invention. Furthermore, a single step described in this invention may be broken down into multiple steps in other embodiments; and multiple steps described in this invention may be combined into a single step in other embodiments.

[0031] Please refer to Figures 1 to 6 As shown, a gas filtration and emission system for an operating room includes a housing 1. An inlet groove 2 is provided on the top side of the housing 1. A dust filter chamber 3, communicating with the inlet groove 2, is provided on the inner side of the top of the housing 1. A slot 4, communicating with the dust filter chamber 3, is provided on the top side of the housing 1. A filter plate 5 is installed in the slot 4. A dust collection chamber 6 is provided at the bottom of the dust filter chamber 3, near the inlet groove 2. A circular groove 31 is provided on the side wall of the dust filter chamber 3. A receiving cavity 32 is provided on the side wall of the circular groove 31. A limiting slot hole 33, communicating with the receiving cavity 32, is provided on the housing 1. A fixing shaft 7 is provided on one side of the filter plate 5. A locking element 8 is provided in the receiving cavity 32. The fixing shaft 7 is inserted into the slot 4 and connected to the locking element 8.

[0032] In this embodiment, a support can be provided on the top of the housing 1 to support the placement of the anesthetic release device. The slot 4 extends horizontally through the dust filter chamber 3, so that the filter plate 5 is placed in the dust filter chamber 3 to filter dust and other particles in the air, thereby reducing the working pressure on the filter element used for purification and improving its efficiency.

[0033] The filter plate 5 can be inserted through the opening of the slot 4 and then secured by the locking element 8.

[0034] Furthermore, the locking component 8 includes a rotating shaft 81 and a pull shaft 82. The rotating shaft 81 is disposed in the accommodating cavity 32, and one end of the pull shaft 82 is sleeved on the rotating shaft 81. The rotating shaft 81 is connected to the fixed shaft 7. A limit ring 811 is provided on the outer side of one end of the rotating shaft 81, a first circular cavity 812 is provided on the inner side of the rotating shaft 81, a first convex ball 813 is provided in the first circular cavity 812, and a first guide groove 814 is provided on the outer side of the rotating shaft 81.

[0035] It should be noted that the accommodating cavity 32 is also a cylindrical cavity. The size of the limiting ring 811 matches the size of the accommodating cavity 32, so that the rotating shaft 81 can only rotate within the accommodating cavity 32. Preferably, the limiting ring 811 and the side wall of the accommodating cavity 32 are connected by a bearing to reduce friction.

[0036] Preferably, a short round shaft is provided at one end of the accommodating cavity 32. The short round shaft is embedded in the first round cavity 812 to provide support for one end of the rotating shaft 81 so that the rotating shaft 81 can rotate better. Similarly, the short round shaft and the first round cavity 812 can be connected by a bearing.

[0037] Furthermore, a second circular cavity 821 is provided in the pull shaft 82, and a second convex ball 822 is provided in the second circular cavity 821. The rotating shaft 81 is embedded in the second circular cavity 821, and the second convex ball 822 is embedded in the first guide groove 814. A slot 823 is provided on the pull shaft 82 to communicate with the second circular cavity 821. An arc plate is formed on the pull shaft 82, and the arc plate passes through the limiting slot 33, so that the pull shaft 82 can only move along the axial direction of the pull shaft 82.

[0038] Furthermore, a pull ring 824 is provided at the end of the pull shaft 82. The pull ring 824 is located outside the housing 1 to facilitate operation of the pull shaft 82.

[0039] The rotating shaft 81 is also provided with an annular groove 815, which is located on the rotating shaft 81 near one end of the limiting ring 811; the fixed shaft 7 is provided with a second guide groove 71, which is embedded in the first circular cavity 812, and the first convex ball 813 is embedded in the second guide groove 71; the filter plate 5 is provided with a filter screen 51.

[0040] It should be noted that both the second guide groove 71 and the first guide groove 814 are spiral groove structures, and the pitch of the second guide groove 71 is greater than that of the first guide groove 814, so that when the pull shaft 82 is pulled to move a short stroke, the fixed shaft 7 can obtain a larger stroke. Preferably, in order to reduce the pulling force used, the upper and lower ends of the slot 4 are embedded with balls to reduce the friction between the slot 4 and the filter plate 5.

[0041] Preferably, a spring can be installed in the first circular cavity 812 to connect with a short circular shaft, so that the rotating shaft 81 always remains in the same position without external force, so that the initial position of the first convex ball 813 corresponds to the opening position of the second guide groove 71. Therefore, after the filter plate 5 is installed, the fixed shaft 7 is inserted into the first circular cavity 812 and the rotating shaft 81 rotates.

[0042] It should be noted that the first guide groove 814 and the annular groove 815 are connected by a straight groove 816, which is arranged axially, and the end of the pull shaft 82 is provided with a second spring connecting receiving cavity 32.

[0043] In the initial state, under the action of the second spring, the second convex ball 822 is in the straight groove 816. Pushing the pull shaft 82 makes the second convex ball 822 in the annular groove 815. At this time, the filter plate 5 is inserted into the slot 4, the fixing shaft 7 is inserted into the first circular cavity 812, the first convex ball 813 enters the second guide groove 71, and the rotating shaft 81 starts to rotate. After the filter plate 5 is installed in place, the pull shaft 82 returns to its original position under the action of the second spring, and the rotating shaft 81 is fixed again. At this time, the filter plate 5 cannot be removed.

[0044] The number of arrays of the first guide groove 814 in the circumferential direction is designed according to needs. One of the considerations is that after the rotating shaft 81 rotates, the straight groove 816 still needs to correspond to the position of the second convex ball 822.

[0045] Pulling the pull shaft 82 causes the second convex ball 822 to enter the first guide groove 814, which in turn causes the rotating shaft 81 to rotate and move the filter plate 5. Repeatedly pulling the pull shaft 82 can vibrate the filter plate 5.

[0046] The housing 1 is also equipped with a purification chamber 9, which is equipped with a filter element 91. The purification chamber 9 and the dust filter chamber 3 are connected by a connecting pipe 92, which is equipped with an air pump 93.

[0047] The housing 1 is also equipped with an exhaust port 94 that is connected to the purification chamber 9.

[0048] Preferably, the filter element 91 is an activated carbon filter element, which can effectively adsorb anesthetic halides contained in the air. The air pump 92 is used for air extraction. When it is working, the gas in the operating room will be drawn into the dust filter chamber 3 through the inlet slot 2, discharged into the purification chamber 9, and filtered out by the filter plate 5 to remove dust particles, etc. After being purified and adsorbed by the filter element 91, it is discharged from the exhaust port 94.

[0049] An inlet screen 21 is embedded in the inlet slot 2, and a dust collection drawer 61 is provided in the dust collection chamber 6.

[0050] It should be noted that the dust collection drawer 61 is also equipped with a handle for easy removal of accumulated dust.

[0051] The above are merely preferred embodiments of one or more embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of the present invention should be included within the protection scope of one or more embodiments of the present invention.

Claims

1. A filtered exhaust system for gases in an operating room, characterized by, Includes a housing (1), an inlet groove (2) is provided on the top side of the housing (1), a dust filter chamber (3) is provided on the top inner side of the housing (1) and communicates with the inlet groove (2), a slot (4) is provided on the top side of the housing (1) and communicates with the dust filter chamber (3), a filter plate (5) is provided in the slot (4), and a dust collection chamber (6) is provided on the bottom side of the dust filter chamber (3) near the inlet groove (2); The dust filter chamber (3) has a circular groove (31) on its side wall, and a receiving cavity (32) is provided on the side wall of the circular groove (31). The box body (1) has a limiting groove hole (33) that communicates with the receiving cavity (32). A fixed shaft (7) is provided on one side of the filter plate (5), and a locking member (8) is provided in the accommodating cavity (32). The fixed shaft (7) is inserted into the slot (4) and connected to the locking member (8). The locking member (8) includes a rotating shaft (81) and a pull shaft (82). The rotating shaft (81) is disposed in the accommodating cavity (32). One end of the pull shaft (82) is sleeved on the rotating shaft (81). The rotating shaft (81) is connected to the fixed shaft (7). A limiting ring (811) is provided on the outer side of one end of the rotating shaft (81), a first circular cavity (812) is provided on the inner side of the rotating shaft (81), a first convex ball (813) is provided in the first circular cavity (812), and a first guide groove (814) is provided on the outer side of the rotating shaft (81). The pull shaft (82) is provided with a second circular cavity (821), and a second convex ball (822) is provided in the second circular cavity (821). The rotating shaft (81) is embedded in the second circular cavity (821), and the second convex ball (822) is embedded in the first guide groove (814). The pull shaft (82) is provided with a groove (823) communicating with the second circular cavity (821), and an arc plate is formed on the pull shaft (82), which passes through the limiting groove (33); A pull ring (824) is provided at the end of the pull shaft (82), and the pull ring (824) is provided on the outside of the housing (1); The rotating shaft (81) is also provided with an annular groove (815), which is located on the rotating shaft (81) near one end of the limiting ring (811); The fixed shaft (7) is provided with a second guide groove (71), the fixed shaft (7) is embedded in the first circular cavity (812), and the first convex ball (813) is embedded in the second guide groove (71); The filter plate (5) is provided with a filter screen (51); The first guide groove (814) and the annular groove (815) are connected by a straight groove (816), which is arranged axially, and the end of the pull shaft (82) is provided with a second spring connecting receiving cavity (32).

2. The filtered exhaust system for gases in a surgical room of claim 1, wherein, The housing (1) is also provided with a purification chamber (9), a filter element (91) is provided in the purification chamber (9), and the purification chamber (9) and the dust filter chamber (3) are connected by a connecting pipe (92), and an air pump (93) is provided in the connecting pipe (92). The housing (1) is also provided with an exhaust port (94) that communicates with the purification chamber (9).

3. The filtered exhaust system for gases in a surgical room of claim 2, wherein, An inlet mesh (21) is embedded in the inlet slot (2), and a dust collection drawer (61) is provided in the dust collection chamber (6).

Images