CN220758457U

CN220758457U - Filter

Info

Publication number: CN220758457U
Application number: CN202322564345.7U
Authority: CN
Inventors: 肖盼盼; 童达; 陈忠清; 刘志威; 肖武
Original assignee: Hunan Medical Technology Co ltd
Current assignee: Hunan Medical Technology Co ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-04-12
Anticipated expiration: 2033-09-20

Abstract

The utility model discloses a filter, comprising: the filter body comprises a bottom shell and a sealing cover which are detachably connected, wherein two cavities with openings on the same side are formed in the bottom shell at intervals, the sealing cover is arranged at the opening end of the cavity and seals the two cavities to form a mutually isolated gas transmission filter cavity and a mutually isolated gas exhaust filter cavity, the gas transmission filter cavity is provided with a gas transmission inlet and a gas transmission outlet, the gas exhaust filter cavity is provided with a gas exhaust inlet and a gas exhaust outlet, the gas transmission filter cavity and the gas exhaust filter cavity are respectively provided with a mounting ring at the peripheral side of the gas transmission inlet and the peripheral side wall of the gas exhaust inlet, and the mounting rings are provided with external threads; the two filter elements are respectively arranged in the gas transmission filter cavity and the gas exhaust filter cavity, one axial end of each filter element is an input end, the peripheral side of each filter element is an output end, a connecting ring is fixed on the peripheral edge of the input end of each filter element, and the connecting rings are provided with internal threads and are in threaded connection with corresponding mounting rings. The filter can filter the gas input into the human body and the waste gas output by the human body, has full filtering function and is convenient to assemble and disassemble.

Description

Filter

Technical Field

The utility model relates to the field of medical instruments, in particular to a filter.

Background

The surgical puncture outfit belongs to medical consumables, mainly provides an instrument channel for the abdominal cavity pelvic cavity minimally invasive surgery by matching with minimally invasive equipment, can be used in various minimally invasive surgery, and is used by special doctors for puncturing the abdominal cavity in laparoscopic surgery, conveying gas in the abdominal cavity and establishing a channel for an endoscope and surgical instruments to enter and exit the abdominal cavity from the outside. The puncture outfit needs supporting filter to use, utilizes the filter to filter the gaseous of gas-supply device input, solves gaseous impurity, has the problem of impurity, improves the pure degree of getting into the interior gaseous of human abdominal cavity, but the filter structure that uses in the market at present is relatively single, only filters the gaseous of input human body, and the filtration passageway is single, can't filter the exhaust gas in the operation in-process human body, because contain a large amount of cell fragments and the virus that carries in the patient in the waste gas, can cause very big potential safety hazard to the clinical medical staff in laboratory. In addition, the existing filter has the problem that the filter element is inconvenient to detach, and when the filter element needs to be replaced, the operation is inconvenient, so that a filter with a complete filtering function and more convenient filter element disassembly and assembly is urgently needed.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the filter which can filter the gas input into the human body and the waste gas output by the human body, has full filtering function and is convenient to assemble and disassemble.

A filter according to an embodiment of the present utility model includes:

the filter body comprises a bottom shell and a sealing cover which are detachably connected, wherein two cavities with openings on the same side are formed in the bottom shell at intervals, the sealing cover is arranged at the opening end of the cavity and seals the two cavities to form an air transmission filter cavity and an air transmission filter cavity which are isolated from each other, the air transmission filter cavity is provided with an air transmission inlet and an air transmission outlet, the air transmission filter cavity is provided with an air exhaust inlet and an air exhaust outlet, the air transmission filter cavity and the air transmission filter cavity are respectively provided with a mounting ring at the peripheral side of the air transmission inlet and the peripheral side wall of the air exhaust inlet, and the mounting ring is provided with external threads;

the two filter elements are respectively arranged in the gas transmission filter cavity and the gas exhaust filter cavity, one axial end of each filter element is an input end, the periphery side of each filter element is an output end, a connecting ring is fixed on the peripheral edge of the input end of each filter element, and each connecting ring is provided with internal threads and is in threaded connection with the corresponding mounting ring.

The filter according to the embodiment of the utility model has at least the following beneficial effects:

the filter element is arranged in the gas transmission filter cavity and the exhaust filter cavity respectively to form two gas filtering channels, one gas filtering channel is used for filtering gas input into a human body, the other gas filtering channel is used for filtering waste gas exhausted from the human body, the filtering function is comprehensive, in addition, the filter body is detachably arranged to be connected with the bottom shell and the sealing cover, and the mounting rings are arranged in the gas transmission filter cavity and the exhaust filter cavity respectively to be in threaded connection with the corresponding filter element, so that the filter element and the filter body are detachably connected, when the filter element needs to be replaced, the bottom shell and the sealing cover are detached firstly, then the filter element is detached from the corresponding mounting ring, and the operation is very convenient.

According to some embodiments of the utility model, a step surface is formed between the inner side of the connecting ring and the filter element, and the step surface abuts against the end surface of the corresponding mounting ring.

According to some embodiments of the utility model, the pipe assembly further comprises a pipe assembly, wherein the pipe assembly is provided with a gas pipe, a gas exhaust pipe and an adapter, one end of the gas pipe is connected with the gas outlet, the other end of the gas pipe is connected with the adapter, one end of the gas exhaust pipe is connected with the gas exhaust inlet, the other end of the gas exhaust pipe is connected with the adapter, and the gas pipe and the outer pipe wall of the gas exhaust pipe are at least partially glued.

According to some embodiments of the utility model, two opposite sides of the filter body are respectively provided with a pressure measuring port, a pressure measuring channel is arranged between the two pressure measuring ports, the pressure measuring channel is isolated from the gas transmission filter cavity and the gas exhaust filter cavity, the pipeline assembly further comprises a pressure measuring pipe, one end of the pressure measuring pipe is connected with one of the pressure measuring ports, and the other end of the pressure measuring pipe is provided with a connector.

According to some embodiments of the utility model, the gas outlet, the gas exhaust inlet and one of the pressure measuring ports are provided on the sealing cover, and the gas outlet, the gas exhaust outlet and the other pressure measuring port are provided on the bottom shell.

According to some embodiments of the utility model, the inner end surface of the sealing cover is provided with an annular positioning protrusion, and the positioning protrusion is matched with the bottom shell and embedded into the inner side of the bottom shell.

According to some embodiments of the utility model, the bottom shell is clamped with the sealing cover.

According to some embodiments of the utility model, an operation concave position is arranged on the peripheral wall of the bottom shell, an operation plane is arranged at one end of the operation concave position, which is far away from the sealing cover, and the operation plane is parallel to the end face of the sealing cover.

According to some embodiments of the utility model, the bottom case is integrally formed.

According to some embodiments of the utility model, the bottom shell is provided with a first shell and a second shell, the first shell and the second shell are respectively detachably connected with the sealing cover, the gas transmission filter cavity is formed between the first shell and the sealing cover, and the gas exhaust filter cavity is formed between the second shell and the sealing cover.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view showing the external structure of a filter according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the internal structure of a filter body according to an embodiment of the present utility model;

FIG. 3 is an exploded schematic view of a filter body according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a bottom chassis according to an embodiment of the present utility model.

Reference numerals:

the filter comprises a filter body 100, a gas transmission filter cavity 101, an exhaust filter cavity 102, a gas transmission inlet 103, a gas transmission outlet 104, a gas transmission inlet 105, a gas transmission outlet 106, a pressure measuring port 107, a pressure measuring channel 108, a bottom shell 110, an operation concave position 111, an operation plane 112, a sealing cover 120, a positioning protrusion 121 and a mounting ring 130;

the filter element 200, the step surface 201 and the connecting ring 210;

pipe assembly 300, gas line 310, gas line 320, adapter 330, pressure line 340, and header 350.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, a filter according to an embodiment of the present utility model includes: a filter body 100, two filter cartridges 200.

The filter body 100 comprises a bottom shell 110 and a sealing cover 120 which are detachably connected, wherein the bottom shell 110 is provided with two cavities with openings on the same side at intervals, the sealing cover 120 is arranged at the opening end of the cavity and seals the two cavities so as to form an air transmission filter cavity 101 and an exhaust filter cavity 102 which are isolated from each other between the bottom shell 110 and the sealing cover 120; the gas transmission filter cavity 101 is provided with a gas transmission inlet 103 and a gas transmission outlet 104, wherein the gas transmission inlet 103 is used for being connected with a gas transmission device, and the gas transmission outlet 104 is used for being connected with a puncture outfit; the exhaust filter cavity 102 is provided with an exhaust inlet 105 and an exhaust outlet 106, the exhaust inlet 105 is used for being connected with a puncture outfit to exhaust waste gas, and the exhaust outlet 106 can be used for being connected with a gas transmission device to recycle gas; in addition, the gas transmission filter cavity 101 and the exhaust filter cavity 102 are respectively provided with a mounting ring 130 at the peripheral side of the gas transmission inlet 103 and the peripheral side of the exhaust inlet 105, that is, the mounting ring 130 in the gas transmission filter cavity 101 is arranged around the gas transmission inlet 103, the mounting ring 130 in the exhaust filter cavity 102 is arranged around the exhaust inlet 105, and specifically, the peripheral wall of the mounting ring 130 is provided with external threads.

The two filter elements 200 are respectively arranged in the gas transmission filter cavity 101 and the gas exhaust filter cavity 102, one axial end of each filter element 200 is set as an input end, and the peripheral side is set as an output end, namely, gas can enter from the axial end of each filter element 200 and is output from the peripheral side; specifically, the filter element 200 is fixed with a connecting ring 210 at the circumferential edge of the input end, the connecting ring 210 encloses the input end of the filter element 200, an internal thread is provided on the inner wall of the connecting ring 210 and is used for being in threaded connection with the corresponding mounting ring 130 so as to realize detachable connection between the filter element 200 and the filter body 100, and it can be understood that a space is reserved between the filter element 200 in the gas transmission filter cavity 101 and the gas transmission outlet 104 so as to allow gas to pass through, and a space is reserved between the filter element 200 in the gas transmission filter cavity 102 and the gas transmission outlet 106 so as to allow waste gas to pass through. When in use, gas output by the gas transmission device enters the gas transmission filter cavity 101 through the gas transmission inlet 103, flows from the inner side of the mounting ring 130 in the gas transmission filter cavity 101 to the input end of the corresponding filter element 200, enters the filter element 200, is filtered by the filter element 200, flows out from the peripheral side of the filter element 200, and flows out from the gas transmission outlet 104; the exhaust gas generated by the operation enters the exhaust filter cavity 102 from the exhaust inlet 105, flows from the inner side of the mounting ring 130 in the exhaust filter cavity 102 to the input end of the corresponding filter element 200, is filtered by the filter element 200 after entering the filter element 200, flows out from the periphery of the filter element 200, and flows out from the exhaust outlet 106, and the gas input into the human body and the exhaust gas output by the human body are filtered through the gas transmission filter cavity 101 and the filter element 200 in the exhaust filter cavity 102 respectively.

According to the filter provided by the embodiment of the utility model, the filter element 200 is respectively arranged in the gas transmission filter cavity 101 and the gas exhaust filter cavity 102 to form two gas filtering channels, one gas filtering channel is used for filtering gas input into a human body, the other gas filtering channel is used for filtering waste gas exhausted by the human body, the filtering function is comprehensive, in addition, the filter body 100 is separately arranged into the bottom shell 110 and the sealing cover 120 which are detachably connected, and the mounting rings 130 are respectively arranged in the gas transmission filter cavity 101 and the gas exhaust filter cavity 102 so as to be in threaded connection with the corresponding filter element 200, so that the detachable connection between the filter element 200 and the filter body 100 is realized, when the filter element 200 needs to be replaced, the bottom shell 110 and the sealing cover 120 are detached firstly, then the filter element 200 is detached from the corresponding mounting rings 130, and the operation is reversed during the installation, so that the operation is very convenient.

Referring to fig. 2 and 3, it can be understood that a step surface 201 is formed between the inner side of the connection ring 210 and the filter element 200, and the step surface 201 abuts against the end surface of the corresponding mounting ring 130, and by providing the step surface 201 to abut against the end surface of the mounting ring 130, a positioning reminding effect can be played on the filter element 200 when the filter element 200 is mounted in a threaded manner, so that the filter element 200 is reminded to be screwed in place, and excessive force can be avoided from causing thread slipping. In addition, the surface-to-surface contact can provide a good sealing effect, and prevent the gas from overflowing from the mounting gap between the mounting ring 130 and the connecting ring 210 to reduce the filtering effect. It is conceivable that in some specific embodiments, an annular sealing structure may be disposed between the step surface 201 and the end surface of the mounting ring 130 to further improve the sealing effect and prevent air leakage, where the step surface 201 indirectly abuts against the end surface of the mounting ring 130 through the sealing structure, and the sealing structure may have various forms, and is conventionally disposed, and will not be described herein in any detail.

Referring to fig. 1, it may be understood that the filter according to the embodiment of the present utility model further includes a pipe assembly 300, where the pipe assembly 300 is provided with a gas pipe 310, a gas exhaust pipe 320, and an adapter 330, where the gas pipe 310 and the gas exhaust pipe 320 are both hoses, one end of the gas pipe 310 is connected to the gas outlet 104, the other end is connected to the adapter 330, one end of the gas exhaust pipe 320 is connected to the gas exhaust inlet 105, the other end is also connected to the adapter 330, and the adapter 330 is used to connect a puncture outfit, i.e., the gas pipe 310 and the gas exhaust pipe 320 are connected to the puncture outfit together through the adapter 330, and in addition, the gas pipe 310 and the outer pipe wall of the gas exhaust pipe 320 are at least partially glued, so that the pipelines are concentrated, and the use is more convenient.

Referring to fig. 1 and 2, it may be understood that pressure measuring ports 107 are disposed on two opposite sides of the filter body 100, a pressure measuring channel 108 is disposed between the two pressure measuring ports 107, the pressure measuring channel 108 is isolated from the gas transmission filter cavity 101 and the gas exhaust filter cavity 102, so as to avoid interference between the pressure measuring channels and the gas transmission filter cavity, the pipe assembly 300 further includes a pressure measuring pipe 340, one end of the pressure measuring pipe 340 is connected to one of the pressure measuring ports 107, the other end is provided with a connector 350, the connector 350 is used for connecting a puncture outfit, and the other pressure measuring port 107 is used for connecting a pressure measuring device for pressure detection.

Referring to fig. 1 and 2, it can be understood that the gas outlet 104, the exhaust inlet 105, and one of the pressure measuring ports 107 are disposed on the sealing cover 120, and the gas inlet 103, the exhaust outlet 106, and the other pressure measuring port 107 are disposed on the bottom shell 110, so that the gas pipe 310, the exhaust pipe 320, and the pressure measuring pipe 340 are all connected to the same side of the filter body 100, and the connection is convenient. It is apparent that the mounting ring 130 in the exhaust filter chamber 102 is fixed to the inner end surface of the sealing cover 120, and the mounting ring 130 in the gas transmission filter chamber 101 is fixed to the inner end surface of the bottom case 110.

Referring to fig. 2 and 3, it may be understood that an annular positioning protrusion 121 is disposed on an inner end surface of the sealing cover 120, the positioning protrusion 121 is adapted to the bottom shell 110 and is embedded into an inner side of the bottom shell 110, specifically, an outer wall of the positioning protrusion 121 is abutted against an inner wall of the bottom shell 110, so that when the bottom shell 110 is connected with the sealing cover 120, the positioning protrusion 121 can be embedded into the bottom shell 110 to perform a rapid positioning function, so as to facilitate connection between the bottom shell 110 and the sealing cover 120, and in addition, in a connection state, the positioning protrusion 121 can perform a relative limiting function on the bottom shell 110 and the sealing cover 120, so as to prevent lateral dislocation of the two.

Referring to fig. 2, it can be understood that the bottom case 110 is clamped with the sealing cover 120, so as to realize detachable connection of the bottom case 110 and the sealing cover 120, and the structure is simple and the disassembly and assembly operations are very convenient. It is conceivable that a clamping structure may be disposed on the outer peripheral wall of the positioning protrusion 121 and the inner peripheral wall of the housing, so as to implement the clamping between them, and the clamping structure may take various forms, and is conventionally disposed, which will not be described herein in detail. It should be apparent that in other embodiments, the bottom shell 110 may be connected to the sealing cover 120 by a fastener, so that the connection is more stable.

Referring to fig. 2 and 4, it can be understood that an operation concave portion 111 is provided on the outer peripheral wall of the bottom shell 110, an operation plane 112 is provided at an end of the operation concave portion 111 away from the sealing cover 120, and the operation plane 112 is parallel to an end surface of the sealing cover 120, so that when the bottom shell 110 and the sealing cover 120 are disassembled, a user can insert a finger into the operation concave portion 111, and pull the bottom shell 110 outwards through the operation plane 112 so as to separate the sealing cover 120 from the bottom shell 110, which is more convenient for the user to operate.

Referring to fig. 4, it can be understood that the bottom case 110 is integrally formed, and the inner side of the bottom case 110 is provided with a partition plate to separate two cavities, so that the stability of the integrally formed structure is strong, and the processing and manufacturing are very convenient.

It will be appreciated that in other specific embodiments, the bottom shell 110 is provided with a first shell and a second shell (not shown), the first shell and the second shell are detachably connected with the sealing cover 120 respectively, the gas transmission filter cavity 101 is formed between the first shell and the sealing cover 120, and the exhaust filter cavity 102 is formed between the second shell and the sealing cover 120, so that the bottom shell 110 is separately arranged to facilitate the independent disassembly and assembly of the two filter elements 200; it is conceivable that the first housing and the second housing may be respectively clamped with the sealing cover 120 or connected by a fastener, and the specific shape, the relative position, and the connection form of the first housing and the second housing with the sealing cover 120 may be various, which are not described herein.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A filter, comprising:

the filter body (100) comprises a bottom shell (110) and a sealing cover (120) which are detachably connected, wherein two cavities with openings on the same side are formed in the bottom shell (110) at intervals, the sealing cover (120) is arranged at the opening end of each cavity and seals the two cavities to form a mutually isolated gas transmission filter cavity (101) and a mutually isolated gas transmission filter cavity (102), the gas transmission filter cavity (101) is provided with a gas transmission inlet (103) and a gas transmission outlet (104), the gas transmission filter cavity (102) is provided with a gas transmission inlet (105) and a gas transmission outlet (106), the gas transmission filter cavity (101) and the gas transmission filter cavity (102) are respectively provided with a side wall mounting ring (130) on the periphery of the gas transmission inlet (103) and the periphery of the gas transmission inlet (105), and the mounting ring (130) is provided with external threads;

the two filter elements (200) are respectively arranged in the gas transmission filter cavity (101) and the gas exhaust filter cavity (102), one axial end of each filter element (200) is an input end, the periphery side of each filter element is an output end, a connecting ring (210) is fixed on the peripheral edge of the input end of each filter element (200), and each connecting ring (210) is provided with internal threads and is used for being in threaded connection with the corresponding mounting ring (130).

2. A filter as claimed in claim 1, wherein: a step surface (201) is formed between the inner side of the connecting ring (210) and the filter element (200), and the step surface (201) is abutted against the corresponding end surface of the mounting ring (130).

3. A filter as claimed in claim 1, wherein: still include pipeline assembly (300), pipeline assembly (300) are equipped with gas-supply pipe (310), blast pipe (320), adapter (330), gas-supply pipe (310) one end is connected gas-supply export (104), the other end is connected adapter (330), blast pipe (320) one end is connected exhaust gas inlet (105), the other end is connected adapter (330), outer tube wall of gas-supply pipe (310) and blast pipe (320) is at least partly glued.

4. A filter according to claim 3, wherein: the filter comprises a filter body (100), wherein two opposite sides of the filter body are respectively provided with a pressure measuring port (107), a pressure measuring channel (108) is arranged between the two pressure measuring ports (107), the pressure measuring channels (108) are mutually isolated from a gas transmission filter cavity (101) and an exhaust filter cavity (102), the pipeline assembly (300) further comprises a pressure measuring pipe (340), one end of the pressure measuring pipe (340) is connected with one of the pressure measuring ports (107), and the other end of the pressure measuring pipe is provided with a connector (350).

5. A filter as defined in claim 4, wherein: the gas delivery outlet (104), the exhaust inlet (105) and one pressure measuring port (107) are arranged on the sealing cover (120), and the gas delivery inlet (103), the exhaust outlet (106) and the other pressure measuring port (107) are arranged on the bottom shell (110).

6. A filter as claimed in claim 1, wherein: an annular positioning protrusion (121) is arranged on the inner end surface of the sealing cover (120), and the positioning protrusion (121) is matched with the bottom shell (110) and embedded into the inner side of the bottom shell (110).

7. A filter as defined in claim 6, wherein: the bottom shell (110) is clamped with the sealing cover (120).

8. A filter as defined in claim 7, wherein: an operation concave position (111) is arranged on the peripheral wall of the bottom shell (110), an operation plane (112) is arranged at one end, far away from the sealing cover (120), of the operation concave position (111), and the operation plane (112) is parallel to the end face of the sealing cover (120).

9. A filter as claimed in claim 1, wherein: the bottom shell (110) is integrally formed.

10. A filter as claimed in claim 1, wherein: the bottom shell (110) is provided with a first shell and a second shell, the first shell and the second shell are respectively detachably connected with the sealing cover (120), the gas transmission filter cavity (101) is formed between the first shell and the sealing cover (120), and the gas exhaust filter cavity (102) is formed between the second shell and the sealing cover (120).