Foot switch assembly for laparoscope smoke suction control

Abstract

The utility model discloses a foot switch assembly for laparoscope smoke suction control, which comprises a negative pressure suction device, a filter bottle, a pedal seat, a pedal cover, an on-off control structure, a first reset spring, a second reset spring, a pin shaft and a mounting groove, the pin shaft is arranged on the pedal cover, the mounting groove is arranged on the pedal seat, and the pedal seat is arranged on the filter bottle. The hinge pin is rotatably matched with the mounting groove, the on-off control structure is arranged on the pedal seat, the two ends of the first reset spring abut against the pedal seat and the pedal cover respectively, the two ends of the second reset spring abut against the on-off control structure and the pedal cover respectively, the first reset spring is located between the hinge pin and the second reset spring, and the second reset spring is located between the hinge pin and the second reset spring. The negative pressure suction device is connected with the filter bottle through a guide pipe, and the filter bottle is connected with the on-off control structure through a guide pipe. Compared with the prior art, the switch assembly has the advantages that gas purification is achieved, meanwhile, the gas pumping and exhausting process can be achieved by controlling the pedal, and the whole operation process is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary instrument field especially, relate to a laparoscope smoke suction control's foot switch subassembly. BACKGROUND

[0002] In recent years, laparoscopic minimally invasive surgery is widely used in clinical operation. In the process of minimally invasive surgery, electric surgical equipment such as electrotome and ultrasonic knife can produce smoke. Smoke can seriously affect the operation field of view, and the particles of smoke can adhere to the lens, which needs to be withdrawn and cleaned, prolonging the operation time. In addition, smoke contains a large amount of harmful substances, which endanger the health of medical staff and patients. In order to remove these smokes, smoke filtering devices are commonly used to remove smoke, but the smoke filtering device is a passive smoke exhaust, and the efficiency is relatively low. SUMMARY

[0003] The utility model discloses to the above-mentioned problem, propose a kind of laparoscope smoke suction control system, the control system can realize the gas in operation environment is extracted after filtration and then discharge, realize the purification in gas, simultaneously, the process of extraction and discharge can be realized by control pedal, whole operation process is convenient and fast.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A laparoscope smoke suction control system, comprising a negative pressure suction device, a filter bottle, a pedal base, a pedal cover, an on-off control structure, a first return spring, a second return spring, a pin shaft and a mounting groove, the pin shaft is arranged on the pedal cover, the mounting groove is arranged on the pedal base, the pin shaft and the mounting groove are rotationally matched together, the on-off control structure is arranged on the pedal base, the two ends of the first return spring are respectively abutted against the pedal base and the pedal cover, the two ends of the second return spring are respectively abutted against the on-off control structure and the pedal cover, the first return spring is located between the pin shaft and the second return spring, the negative pressure suction device is connected with the filter bottle through a conduit, and the filter bottle is connected with the on-off control structure through a conduit.

[0006] In the control system, the pedal cover is rotationally installed on the pedal base, and the on-off control structure is arranged on the pedal base. When the pedal base is stepped on, the pedal base can press the on-off control structure, and the pedal base can control the on-off structure by pressing the on-off control structure. In the control system, one side of the on-off control structure is connected with the puncture device through a conduit, and the other side of the on-off control structure is connected with the filter bottle through a conduit. When the negative pressure suction device starts to suck negative pressure, the gas in the puncture device enters the on-off control structure through the conduit, and then enters the filter bottle (the filter bottle can adsorb the smoke contained in the gas). Then, the gas enters the negative pressure suction device and is discharged.

[0007] In conclusion, the control system can realize the extraction and filtration of the gas in the operation environment and then discharge, realize the purification of the gas, and the extraction and discharge process can be realized by controlling the pedal, so the whole operation process is convenient and fast.

[0008] The first reset spring is used to drive the pedal base and the pedal cover to be separated after the pedal cover is close to the pedal base, and the second reset spring is used to make the pedal cover rebound and not contact the on-off control structure after the pedal cover presses the on-off control structure.

[0009] Optionally, the on-off control structure comprises a valve body, a valve core and a valve cover, the valve body is provided with a first interface and a second interface, the first interface is used to connect with the conduit, the valve body and the valve cover are matched together to form a valve cavity, the valve core is arranged in the valve cavity, the valve core is used to control the opening and closing of the first interface and the second interface, and a core spring is arranged between the valve core and the valve body.

[0010] Specifically, the pedal cover can press the valve core to realize the opening and closing of the first interface and the second interface, and the core spring is used to drive the rebound of the pressed valve core.

[0011] Specifically, the first interface of the device is connected with the filter bottle through the conduit, and the second interface is connected with the puncture device through the conduit.

[0012] Optionally, the valve cover is provided with a positioning block, and the pedal base is provided with a clamping groove, and the clamping groove and the positioning block are matched together.

[0013] The clamping groove is used to clamp the positioning block, and the positioning block and the clamping groove are used to ensure that the valve cover is stably matched with the pedal base, and ensure that the whole on-off control structure has high stability on the valve seat.

[0014] Optionally, the positioning block has two positioning blocks, and the two positioning blocks are on a straight line.

[0015] Optionally, a sealing ring is arranged between the valve core and the valve body, and a sealing ring is arranged between the valve cover and the valve body.

[0016] The sealing ring is used for sealing.

[0017] Optionally, a fixing plate is further arranged, and the fixing plate is arranged on one side of the pedal base and provided with an anti-skid pad.

[0018] Specifically, the on-off control structure and the fixing plate are respectively arranged on two sides of the pedal base, the fixing plate is installed on the pedal base through screws, and the anti-skid pad is used to contact the ground.

[0019] Optionally, the pedal cover is provided with a nested column, the nested column is in the shape of a cross, and the first reset spring is matched with the nested column.

[0020] The first reset spring in cross shape is matched with the nesting column to ensure the stable installation of the first reset spring.

[0021] Optionally, the pressing column is arranged on the pedal cover.

[0022] The pressing column is used to press the valve core.

[0023] The control system can realize the extraction and filtration of gas in the operation environment, realizes the purification of the gas, and realizes the extraction and discharge process through the control of the foot pedal. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0025] Figure 1 It is a structure schematic diagram of the foot switch assembly for laparoscope smoke suction control;

[0026] Figure 2 It is a position schematic diagram of the fixing plate on the pedal base;

[0027] Figure 3 It is a position relationship schematic diagram of the first reset spring and the second reset spring;

[0028] Figure 4 It is a schematic diagram of on-off control structure;

[0029] Figure 5 It is a structure schematic diagram of the valve body;

[0030] Figure 6 It is a structure schematic diagram of the pedal cover;

[0031] Figure 7 It is a structure schematic diagram of the pedal base.

[0032] The reference signs in the drawings are as follows: 1, negative pressure suction device; 2, filter bottle; 3, pedal base; 301, mounting groove; 302, nesting column; 303, clamping groove; 4, pedal cover; 401, pin shaft; 402, cylinder; 403, pressing column; 5, conduit; 6, fixing plate; 7, screw; 8, non-slip pad; 901, first reset spring; 902, second reset spring; 10, valve cover; 1001, positioning block; 11, valve body; 12, valve core; 13, core spring; 14, sealing ring; 15, puncture device. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0034] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the size of each part shown in the drawings is not drawn according to the actual proportion relationship. The technology, method and equipment known to those skilled in the related art can not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] As shown in the accompanying Figure 1 As shown in the accompanying Figure 7As shown in the figure, a laparoscopic smoke suction control system comprises a negative pressure suction device 1, a filter bottle 2, a pedal base 3, a pedal cover 4, an on-off control structure, a first return spring 901, a second return spring 902, a pin shaft 401 and a mounting groove 301, the pin shaft 401 is arranged on the pedal cover 4, the mounting groove 301 is arranged on the pedal base 3, the pin shaft 401 and the mounting groove 301 are rotationally matched together, the on-off control structure is arranged on the pedal base 3, the two ends of the first return spring 901 abut against the pedal base 3 and the pedal cover 4 respectively, the two ends of the second return spring 902 abut against the on-off control structure and the pedal cover 4 respectively, the first return spring 901 is located between the pin shaft 401 and the second return spring 902, the negative pressure suction device 1 and the filter bottle 2 are connected through a conduit 5, and the filter bottle 2 and the on-off control structure are connected through the conduit 5.

[0037] In the control system, the pedal cover 4 is rotationally arranged on the pedal base 3, and the on-off control structure is arranged on the pedal base 3, when the pedal base 3 is pressed by the foot, the pedal base 3 can press the on-off control structure, and the pedal base 3 can control the on-off structure by pressing the on-off control structure, in the control system, one side of the on-off control structure is connected with the puncture device 15 through the conduit 5, and the other side of the on-off control structure is connected with the filter bottle 2 through the conduit 5, when the negative pressure suction device 1 starts to suck negative pressure, the gas in the puncture device 15 enters the on-off control structure through the conduit 5, then enters the filter bottle 2 through the on-off control structure (the filter bottle 2 can adsorb the smoke contained in the gas), and then enters the negative pressure suction device 1 and is discharged. The above-mentioned gas flow direction can be referred to the arrow in the figure. Figure 1

[0038] In the control system, the pedal cover 4 is rotationally arranged on the pedal base 3, and the on-off control structure is arranged on the pedal base 3, when the pedal base 3 is pressed by the foot, the pedal base 3 can press the on-off control structure, and the pedal base 3 can control the on-off structure by pressing the on-off control structure, in the control system, one side of the on-off control structure is connected with the puncture device 15 through the conduit 5, and the other side of the on-off control structure is connected with the filter bottle 2 through the conduit 5, when the negative pressure suction device 1 starts to suck negative pressure, the gas in the puncture device 15 enters the on-off control structure through the conduit 5, then enters the filter bottle 2 through the on-off control structure (the filter bottle 2 can adsorb the smoke contained in the gas), and then enters the negative pressure suction device 1 and is discharged. The above-mentioned gas flow direction can be referred to the arrow in the figure.

[0039] In the control system, the pedal cover 4 is rotationally arranged on the pedal base 3, and the on-off control structure is arranged on the pedal base 3, when the pedal base 3 is pressed by the foot, the pedal base 3 can press the on-off control structure, and the pedal base 3 can control the on-off structure by pressing the on-off control structure, in the control system, one side of the on-off control structure is connected with the puncture device 15 through the conduit 5, and the other side of the on-off control structure is connected with the filter bottle 2 through the conduit 5, when the negative pressure suction device 1 starts to suck negative pressure, the gas in the puncture device 15 enters the on-off control structure through the conduit 5, then enters the filter bottle 2 through the on-off control structure (the filter bottle 2 can adsorb the smoke contained in the gas), and then enters the negative pressure suction device 1 and is discharged. The above-mentioned gas flow direction can be referred to the arrow in the figure.

[0040] As shown in the figure, the on-off control structure comprises a valve body 11, a valve core 12 and a valve cover 10, the valve body 11 is provided with a first interface and a second interface, the first interface is used for connecting with the conduit 5, the valve body 11 and the valve cover 10 are matched together to form a valve cavity, the valve core 12 is arranged in the valve cavity, the valve core 12 is used for controlling the opening and closing of the first interface and the second interface, and a core spring 13 is arranged between the valve core 12 and the valve body 11. Figure 1 Figure 7 As shown in the figure, the on-off control structure comprises a valve body 11, a valve core 12 and a valve cover 10, the valve body 11 is provided with a first interface and a second interface, the first interface is used for connecting with the conduit 5, the valve body 11 and the valve cover 10 are matched together to form a valve cavity, the valve core 12 is arranged in the valve cavity, the valve core 12 is used for controlling the opening and closing of the first interface and the second interface, and a core spring 13 is arranged between the valve core 12 and the valve body 11.

[0041] ​​Specifically, the foot cover 4 can press the valve core 12 to realize the opening and closing between the first interface and the second interface, and the core spring 13 drives the pressed valve core 12 to rebound.

[0042] Specifically, the first interface of this device is connected to the filter bottle 2 via the conduit 5, and the second interface is connected to the puncture device 15 via the conduit 5.

[0043] As attached Figure 1 ~Appendix Figure 7 As shown, a positioning block 1001 is provided on the valve cover 10, and a locking groove 303 is provided on the foot seat 3. The locking groove 303 is engaged with the positioning block 1001.

[0044] The engaging groove 303 is used to engage the positioning block 1001. The function of the positioning block 1001 and the engaging groove 303 is to ensure that the valve cover 10 is stably engaged with the foot seat 3, and to ensure that the entire on / off control structure has high stability on the valve seat.

[0045] As attached Figure 1 ~Appendix Figure 7 As shown, there are two positioning blocks 1001, and the two positioning blocks 1001 are on a straight line.

[0046] As attached Figure 1 ~Appendix Figure 7 As shown, a sealing ring 14 is provided between the valve core 12 and the valve body 11, and a sealing ring 14 is provided between the valve cover 10 and the valve body 11.

[0047] The function of the sealing ring 14 is to provide a seal.

[0048] As attached Figure 1 ~Appendix Figure 7 As shown, it also includes a fixing plate 6, which is disposed on one side of the footrest 3, and an anti-slip pad 8 is provided on the fixing plate 6.

[0049] The specific on / off control structure and the fixing plate 6 are located on both sides of the footrest 3. The fixing plate 6 is installed on the footrest 3 by screws 7, and the anti-slip pad 8 is used to contact the ground.

[0050] As attached Figure 1 ~Appendix Figure 7 As shown, a nested post 302 is provided on the foot cover 4. The nested post 302 is cross-shaped, and the first return spring 901 is sleeved and fitted together with the nested post 302.

[0051] The cross-shaped first reset spring 901 is designed to cooperate with the nested post 302 to ensure the stable installation of the first reset spring 901. Specifically, to ensure the stable installation of the first reset spring 901, a cylinder 402 is provided on the foot cover 4, and the two ends of the first reset spring 901 are respectively fitted onto the cylinder 402 and the nested post 302.

[0052] As attachedFigure 1 Figure 7 As shown in the figure, the pressing column 403 is arranged on the treadle cover 4.

[0053] The pressing column 403 specifically functions to press the valve core 12. The above-mentioned embodiments only express partial embodiments of the present application, and the description is relatively specific and detailed, but this should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.​

Claims

1. A laparoscopic smoke suction control footswitch assembly, comprising: The negative pressure suction device, the filter bottle, the pedal base, the pedal cover, the on-off control structure, the first reset spring, the second reset spring, the pin shaft and the mounting slot, the pin shaft is arranged on the pedal cover, the mounting slot is arranged on the pedal base, the pin shaft and the mounting slot are rotationally matched together, the on-off control structure is arranged on the pedal base, the two ends of the first reset spring are respectively abutted against the pedal base and the pedal cover, the two ends of the second reset spring are respectively abutted against the on-off control structure and the pedal cover, the first reset spring is located between the pin shaft and the second reset spring, the negative pressure suction device and the filter bottle are connected through the conduit, and the filter bottle and the on-off control structure are connected through the conduit.

2. A laparoscopic smoke suction controlled footswitch assembly according to claim 1, wherein, The on-off control structure comprises a valve body, a valve core and a valve cover, the valve body is provided with a first interface and a second interface, the first interface is used for connecting with the conduit, the valve body and the valve cover are matched together to form a valve cavity, the valve core is arranged in the valve cavity, the valve core is used for controlling the opening and closing of the first interface and the second interface, and a core spring is arranged between the valve core and the valve body.

3. A laparoscopic smoke suction controlled footswitch assembly according to claim 2, wherein, The valve cover is provided with a positioning block, the pedal base is provided with a clamping groove, and the clamping groove and the positioning block are matched together.

4. A laparoscopic smoke suction controlled footswitch assembly according to claim 3, wherein, The positioning block has two blocks, and the two blocks are on a straight line.

5. A laparoscopic smoke suction controlled footswitch assembly according to claim 2, wherein, Sealing rings are arranged between the valve core and the valve body and between the valve cover and the valve body.

6. A laparoscopic smoke suction controlled footswitch assembly according to claim 1, wherein, A fixing plate is further arranged on one side of the pedal base, and the fixing plate is provided with an anti-skid pad.

7. A laparoscopic smoke suction controlled footswitch assembly according to claim 1, wherein, The pedal cover is provided with a nested column, the nested column is in a cross shape, the first reset spring and the nested column are sleeved and matched together.

8. A laparoscopic smoke suction controlled footswitch assembly according to claim 1, wherein, The pedal cover is provided with a pressing column.

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