Filter mounting structure for pneumoperitoneum machine

Abstract

The utility model discloses a filter mounting structure for a pneumoperitoneum machine, which comprises a shell, a mounting seat and a filter, the mounting seat is arranged in the shell, and the filter is inserted in the mounting seat; a liquid level sensing assembly and a locking assembly are arranged on the side wall of the mounting seat, the liquid level sensing assembly is used for sensing the liquid level in the filter, and the locking assembly is used for locking the filter in the mounting seat; the shell is further provided with an unlocking assembly, and the unlocking assembly is used for unlocking the filter locked by the locking assembly. During use, the filter is locked in the mounting base through the locking assembly, and the liquid level in the filter is sensed through the liquid level sensing assembly, so that the opportunity for replacing the filter is conveniently judged, and the situation that an operation is affected due to excessive hydrops is avoided; when the filter needs to be replaced, the locking state of the filter is relieved through the unlocking assembly, so that the filter is pulled out in time to be replaced, a new filter is inserted to be locked again through the locking assembly, dismounting and mounting operation is easy and convenient, the replacement efficiency is improved, and the mounting and fixing reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of pneumoperitoneum machine technology, specifically to a filter installation structure for a pneumoperitoneum machine. Background Technology

[0002] An insufflator is a specialized device used to establish and maintain pneumoperitoneum during laparoscopic surgery. It is typically used in conjunction with a disposable filter. The filter filters the carbon dioxide gas output from the insufflator before it is introduced into the abdominal cavity. Simultaneously, it filters the fumes generated during surgery and recycles them within the insufflator. The filter acts as a filtration medium for the carbon dioxide gas supplied by the insufflator, addressing issues such as impurities in the gas provided by the insufflator and improving the purity of the gas entering the abdominal cavity.

[0003] Because the smoke generated during surgery contains a certain amount of water vapor, a large amount of water vapor will condense inside the filter during the smoke extraction process, forming liquid. If this is not detected in time, it will seriously affect the smoke extraction and filtration function and affect the operation. Therefore, the filter needs to be replaced in a timely manner according to the amount of liquid accumulation.

[0004] There are generally two ways to install filters. One is to install them on the air supply line outside the insufflator, which allows for real-time monitoring of the usage status, but lacks a fixed structure for the filter. The other is to insert them into the housing of the insufflator. However, the fluid accumulation inside the filter cannot be observed from the outside of the insufflator, making it impossible to accurately determine the fluid accumulation inside the filter. This can easily affect the progress of the surgery and is also inconvenient for filter disassembly and replacement, affecting the efficiency of replacement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a filter installation structure for an insufflator that is simple and convenient to disassemble and assemble, and has high installation and fixing reliability.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A filter mounting structure for an insufflator includes a housing, a mounting base, and a filter, wherein the mounting base is disposed within the housing, and the filter is inserted into the mounting base;

[0008] The mounting base is provided with a liquid level sensing component and a locking component on its side wall. The liquid level sensing component is used to sense the liquid level in the filter, and the locking component is used to lock the filter in the mounting base.

[0009] The housing is also provided with an unlocking component, which is used to release the locking component from locking the filter.

[0010] As a further improvement to the above technical solution: the locking assembly includes a bracket, a locking member, and a first elastic reset member. The locking member is hinged to the bracket and is provided with a locking hook. The filter is provided with a locking groove that can cooperate with the locking hook. The mounting base is provided with a clearance groove for avoiding the locking member. The first elastic reset member is provided on the bracket and is used to allow the locking member to extend into the mounting base, so that the locking hook cooperates with the locking groove.

[0011] As a further improvement to the above technical solution: the first elastic reset component is a torsion spring, the bracket is provided with a positioning rod and an abutment rod, the torsion spring is sleeved on the positioning rod, one end abuts against the abutment rod, and the other end abuts against the back of the locking hook.

[0012] As a further improvement to the above technical solution: the locking member has a booster end at the end away from the locking hook.

[0013] As a further improvement to the above technical solution: the unlocking component includes an unlocking button, a button base, a second elastic reset member, and an unlocking block; the button base is connected to the housing and / or the mounting base; the unlocking button is located inside the button base and partially exposed outside the housing; the second elastic reset member is located between the unlocking button and the button base; the unlocking button has a connecting post, which passes through the button base and connects to the unlocking block; the bottom surface of the unlocking block abuts against the outer wall of the mounting base, the unlocking block has an unlocking surface, the lock hook has an unlocking post, and the unlocking surface abuts against the unlocking post.

[0014] As a further improvement to the above technical solution: the unlocking surface is an inclined surface, and a rolling bearing is provided on the unlocking post.

[0015] As a further improvement to the above technical solution: the outer wall of the mounting base is provided with a guide groove, and the bottom surface of the unlocking block is located in the guide groove.

[0016] As a further improvement to the above technical solution: the unlocking block is provided with two unlocking surfaces, and an avoidance gap is provided between the two unlocking surfaces to avoid the lock hook.

[0017] As a further improvement to the above technical solution: the liquid level sensing component includes a low liquid level sensor and a high liquid level sensor, the low liquid level sensor being located below the mounting base and the high liquid level sensor being located on the side of the mounting base.

[0018] As a further improvement to the above technical solution: the bottom of the mounting base is provided with a photoelectric sensor for sensing whether the filter has been inserted.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The filter installation structure for an insufflator disclosed in this utility model allows the filter to be connected to the mounting base on the housing via a plug-in connection. The filter is locked in the mounting base by a locking component, and the liquid level in the filter is sensed by a liquid level sensing component, which facilitates the determination of when to replace the filter and avoids excessive liquid accumulation that may affect the operation. When replacement is required, the locking state of the filter is released by the unlocking component, allowing the filter to be pulled out for replacement in a timely manner. Then, the new filter is inserted and locked again by the locking component. The disassembly and assembly operations are simple and convenient, improving the replacement efficiency and ensuring high installation and fixation reliability.

[0021] 2. The filter installation structure for an insufflator disclosed in this utility model further includes an unlocking button connecting post abutting against an unlocking block and connected by fasteners such as screws, allowing the connecting post to drive the unlocking block to move. When the filter needs to be replaced, pressing the unlocking button on the housing surface compresses the second elastic reset member into the button seat, and the unlocking button connecting post pushes the unlocking block inward, causing the unlocking surface to lift the unlocking post, thus disengaging the locking hook from the locking groove and unlocking the filter. Unlocking by lifting the locking hook allows the unlocking pressure to be transmitted laterally to the locking hook, improving the reliability of unlocking. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the pneumoperitoneum machine of this utility model.

[0023] Figure 2 This is a schematic diagram of the installation method of the filter installation structure used in the pneumoperitoneum machine in this utility model.

[0024] Figure 3 This is a first-view structural schematic diagram of the filter installation structure for an insufflator in this utility model.

[0025] Figure 4 This is a second-view structural schematic diagram of the filter installation structure for an insufflator in this utility model.

[0026] Figure 5 This is a schematic diagram of the locking component in this utility model.

[0027] Figure 6 This is a schematic diagram of the mounting base in this utility model.

[0028] Figure 7 This is an exploded structural diagram of the unlocking component in this utility model.

[0029] The labels in the diagram represent: 10, housing; 11, switch; 12, control panel; 20, mounting base; 21, clearance groove; 22, guide groove; 23, photoelectric sensor; 30, filter; 31, locking groove; 40, liquid level sensing assembly; 41, low liquid level sensor; 42, high liquid level sensor; 50, locking assembly; 51, bracket; 511, positioning rod; 512, abutment rod; 52, locking element; 521, locking hook; 522, push end; 523, unlocking post; 53, first elastic reset element; 60, unlocking assembly; 61, unlocking button; 611, connecting post; 62, button seat; 63, second elastic reset element; 64, unlocking block; 641, unlocking surface. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] As illustrated in this invention, unless the context clearly indicates otherwise, words such as "a," "an," "a kind," and / or "the" do not specifically refer to the singular and may also include the plural. The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, words such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect.

[0032] Figures 1 to 7 An embodiment of the present invention is shown. The filter mounting structure for an insufflator in this embodiment includes a housing 10, a mounting base 20 and a filter 30. The mounting base 20 is disposed inside the housing 10 and the filter 30 is inserted into the mounting base 20.

[0033] The side wall of the mounting base 20 is provided with a liquid level sensing component 40 and a locking component 50. The liquid level sensing component 40 is used to sense the liquid level in the filter 30, and the locking component 50 is used to lock the filter 30 in the mounting base 20.

[0034] The housing 10 is provided with an unlocking component 60, which is used to release the locking component 50 from locking the filter 30.

[0035] In use, the filter 30 is plugged into the mounting base 20 on the housing 10. The locking component 50 locks the filter 30 into the mounting base 20. The liquid level sensing component 40 senses the liquid level in the filter 30, making it easy to determine when to replace the filter 30 and avoiding excessive liquid accumulation that could affect the operation. When replacement is needed, the locking component 60 releases the locking state of the filter 30, allowing it to be pulled out for replacement. Then, the new filter 30 is inserted and locked again by the locking component 50. The disassembly and assembly are simple and convenient, improving replacement efficiency and ensuring high installation reliability.

[0036] In this embodiment, the locking assembly 50 includes a bracket 51, a locking member 52, and a first elastic reset member 53. The locking member 52 is hinged to the bracket 51 and is provided with a locking hook 521. The filter 30 is provided with a locking groove 31 that can cooperate with the locking hook 521. The mounting base 20 is provided with a clearance groove 21 for avoiding the locking member 52. The first elastic reset member 53 is provided on the bracket 51 and is used to allow the locking member 52 to extend into the mounting base 20, so that the locking hook 521 cooperates with the locking groove 31. Specifically, the bracket 51 is installed on the outer wall of the mounting base 20 by fasteners such as screws. The locking member 52 is installed on the bracket 51 by a rotating shaft. The first elastic reset member 53 allows the locking member 52 to extend into the clearance groove 21, so that the locking hook 521 cooperates with the locking groove 31, preventing the filter 30 from loosening and being pulled out, thereby maintaining the locked state of the filter 30. The structure is simple and easy to process and assemble.

[0037] In this embodiment, the first elastic reset member 53 is preferably a torsion spring. The bracket 51 is provided with a positioning rod 511 and an abutment rod 512. The torsion spring is sleeved on the positioning rod 511, with one end abutting against the abutment rod 512 and the other end abutting against the back of the locking hook 521. Specifically, the torsion spring has higher reset reliability, is easier to install, and has lower cost; the back of the locking hook 521 is also provided with a groove for accommodating the torsion spring to prevent the torsion spring from slipping out of the contact surface and failing.

[0038] In this embodiment, the locking member 52 has a push end 522 at the end away from the locking hook 521. Specifically, the push end 522 and the main body of the locking member 52 are preferably arranged at a right angle. When the unlocking component 60 unlocks, the locking member 52 rotates, the locking hook 521 disengages from the locking groove 31, and the push end 522 moves into the mounting base 20 at the same time as the rotation, thereby facilitating the push out of the filter 30, further facilitating disassembly and improving the replacement efficiency.

[0039] In this embodiment, the unlocking component 60 includes an unlocking button 61, a button base 62, a second elastic reset member 63, and an unlocking block 64; the button base 62 is connected to the housing 10; the unlocking button 61 is disposed inside the button base 62 and partially exposed outside the housing 10; the second elastic reset member 63 is disposed between the unlocking button 61 and the button base 62; the unlocking button 61 is provided with a connecting post 611, which passes through the button base 62 and is connected to the unlocking block 64; the bottom surface of the unlocking block 64 abuts against the outer wall of the mounting base 20, the unlocking block 64 is provided with an unlocking surface 641, and the locking hook 521 is provided with an unlocking post 523, the unlocking surface 641 abuts against the unlocking post 523. Specifically, the connecting post 611 of the unlock button 61 abuts against the unlock block 64 and is connected by fasteners such as screws, so that the connecting post 611 can drive the unlock block 64 to move. When the filter 30 needs to be replaced, the unlock button 61 on the surface of the housing 10 is pressed, thereby compressing the second elastic reset member 63 to move into the button seat 62. The connecting post 611 of the unlock button 61 pushes the unlock block 64 to move inward, so that the unlocking surface 641 lifts the unlock post 523, thereby disengaging the locking hook 521 from the locking groove 31 and thus unlocking. Unlocking by lifting the locking hook 521 allows the unlocking pressure to be transmitted laterally to the locking hook 521, which can improve the reliability of unlocking.

[0040] In this embodiment, the unlocking surface 641 is preferably an inclined surface, and the unlocking post 523 is provided with a rolling bearing. Specifically, the cooperation between the inclined surface and the rolling bearing makes the unlocking process smoother.

[0041] In this embodiment, the outer wall of the mounting base 20 is provided with a guide groove 22, and the bottom surface of the unlocking block 64 is located in the guide groove 22. Specifically, the guide groove 22 limits and guides the unlocking block 64 to ensure the unlocking effect.

[0042] In this embodiment, the unlocking block 64 has two unlocking surfaces 641, and a clearance gap is provided between the two unlocking surfaces 641 to avoid the locking hook 521. Specifically, the arrangement of the two unlocking surfaces 641 makes the force more even, further improving reliability.

[0043] In this embodiment, the liquid level sensing component 40 includes a low liquid level sensor 41 and a high liquid level sensor 42. The low liquid level sensor 41 is located below the mounting base 20, and the high liquid level sensor 42 is located on the side of the mounting base 20. Specifically, the liquid level sensors are infrared sensors, each with transmitting and receiving terminals. The transmitting terminal emits infrared light that passes through the filter 30, and the receiving terminal receives the reflected infrared light. When there is no liquid inside the filter 30, the reflected intensity is strong; when there is liquid inside the filter 30, the received reflected intensity is weak. The difference in intensity determines whether liquid has entered the filter 30. By using two liquid level sensors to detect high and low liquid levels respectively, it is convenient to monitor the liquid accumulation in the filter 30 in real time.

[0044] In this embodiment, the bottom of the mounting base 20 is provided with a photoelectric sensor 23 for sensing whether the filter 30 has been inserted. Specifically, the photoelectric sensor 23 can sense whether the filter 30 has been inserted, thereby facilitating the user to check the machine status.

[0045] An insufflation machine includes a switch 11, a control panel 12, and the aforementioned filter mounting structure. The switch 11 and control panel 12 are mounted on a housing 10, and a mounting base 20 is mounted on the housing 10.

[0046] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A filter mounting structure for an insufflator, comprising a housing (10), a mounting base (20), and a filter (30), wherein the mounting base (20) is disposed within the housing (10), and the filter (30) is inserted into the mounting base (20); characterized in that: The mounting base (20) is provided with a liquid level sensing component (40) and a locking component (50) on its side wall. The liquid level sensing component (40) is used to sense the liquid level in the filter (30), and the locking component (50) is used to lock the filter (30) in the mounting base (20). The housing (10) is further provided with an unlocking component (60), which is used to release the locking component (50) from locking the filter (30).

2. The filter mounting structure for an insufflator according to claim 1, characterized in that: The locking assembly (50) includes a bracket (51), a locking member (52), and a first elastic reset member (53). The locking member (52) is hinged to the bracket (51) and is provided with a locking hook (521). The filter (30) is provided with a locking groove (31) that can cooperate with the locking hook (521). The mounting base (20) is provided with a clearance groove (21) for avoiding the locking member (52). The first elastic reset member (53) is provided on the bracket (51) and is used to allow the locking member (52) to extend into the mounting base (20) so that the locking hook (521) cooperates with the locking groove (31).

3. The filter mounting structure for an insufflator according to claim 2, characterized in that: The first elastic reset member (53) is a torsion spring. The bracket (51) is provided with a positioning rod (511) and an abutment rod (512). The torsion spring is sleeved on the positioning rod (511), with one end abutting against the abutment rod (512) and the other end abutting against the back of the locking hook (521).

4. The filter mounting structure for an insufflator according to claim 2, characterized in that: The locking member (52) has a push end (522) at the end away from the locking hook (521).

5. The filter mounting structure for an insufflator according to claim 2, characterized in that: The unlocking assembly (60) includes an unlocking button (61), a button base (62), a second elastic reset member (63), and an unlocking block (64); the button base (62) is connected to the housing (10) and / or the mounting base (20); the unlocking button (61) is located inside the button base (62) and partially exposed outside the housing (10); the second elastic reset member (63) is located between the unlocking button (61) and the button base (62); the unlocking button (61) is provided with a connecting post (611), the connecting post (611) passes through the button base (62) and is connected to the unlocking block (64); the bottom surface of the unlocking block (64) abuts against the outer wall of the mounting base (20), the unlocking block (64) is provided with an unlocking surface (641), the lock hook (521) is provided with an unlocking post (523), and the unlocking surface (641) abuts against the unlocking post (523).

6. The filter mounting structure for an insufflator according to claim 5, characterized in that: The unlocking surface (641) is an inclined surface, and the unlocking post (523) is provided with a rolling bearing.

7. The filter mounting structure for an insufflator according to claim 5, characterized in that: The outer wall of the mounting base (20) is provided with a guide groove (22), and the bottom surface of the unlocking block (64) is located in the guide groove (22).

8. The filter mounting structure for an insufflator according to claim 5, characterized in that: The unlocking block (64) has two unlocking surfaces (641), and a clearance is provided between the two unlocking surfaces (641) to avoid the locking hook (521).

9. The filter mounting structure for an insufflator according to any one of claims 1 to 8, characterized in that: The liquid level sensing component (40) includes a low liquid level sensor (41) and a high liquid level sensor (42). The low liquid level sensor (41) is located below the mounting base (20), and the high liquid level sensor (42) is located on the side of the mounting base (20).

10. The filter mounting structure for an insufflator according to any one of claims 1 to 8, characterized in that: The bottom of the mounting base (20) is provided with a photoelectric sensor (23) for sensing whether the filter (30) has been inserted.

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