CN217744350U - Single-channel laparoscopic surgery communication fixing device - Google Patents

Abstract

The application relates to a single channel laparoscopic surgery intercommunication fixing device includes: the base, admit air disk seat, exhaust valve seat, apparatus pipeline and blast pipe. The base is inside cavity, below open-ended cavity, and air inlet valve seat, exhaust valve seat and apparatus pipeline all set up in the top of base, with the inside intercommunication of base, the blast pipe setting extends along the opening direction of base in the below of exhaust valve seat, and the one end and the exhaust valve seat intercommunication of blast pipe, and the smoking hole has been seted up to the other end. Therefore, the smoke inlet at the bottom end of the air inlet valve seat and the smoke suction port formed at the bottom end of the exhaust valve seat and the exhaust pipe are in different planes. Fresh gas is filled into the bottom end of the air inlet valve seat, and due to the height difference between the exhaust pipe and the air inlet valve seat, smoke generated in a deep operation area can be smoothly discharged from the exhaust valve seat, so that the smoke is prevented from influencing the operation visual field, and the operation success rate is improved.

Description

Single-channel laparoscopic surgery communicating and fixing device

Technical Field

The application relates to the technical field of surgical medical instruments, in particular to a single-channel laparoscopic surgery communication fixing device.

Background

The single-hole laparoscopic surgery is the leading international minimally invasive technique, surgical instruments and equipment enter an abdominal cavity through an umbilical hole in the surgery, a surgical incision is shielded by using an umbilical wrinkled wall, and an angle is changed to zero after four holes, three holes and two holes are changed into one hole in the traditional laparoscopic surgery through the umbilical single-hole laparoscopic technique. In the process of performing a laparoscopic single-port operation, fresh gas needs to be injected into the abdominal cavity, and harmful gas which can affect the sight of doctors and medical staff is also required to be generated inside the abdominal cavity and exhausted. Therefore, the harmful gas obstructing the view of the human body is discharged while injecting the fresh gas into the abdominal cavity,

the air inlet and the air outlet of the existing device are both arranged at the same position and are both arranged at the position close to the abdomen, so that the injected fresh air is rapidly exhausted by the adjacent arranged air outlet, and harmful gas which obstructs the sight line is difficult to exhaust at the same depth position with the operation.

SUMMERY OF THE UTILITY MODEL

In view of this, the application provides a single channel laparoscopic surgery intercommunication fixing device, has solved and has operated the same degree of depth position with the operation and produced the problem that the harmful gas who hinders the sight is difficult to discharge, prevents that harmful gas from hindering doctor and medical personnel's sight, promotes the success rate of operation implementation.

According to an aspect of the present application, there is provided a single-channel laparoscopic surgery communication fixture including: the device comprises a base, an air inlet valve seat, an air exhaust valve seat, an instrument pipeline and an exhaust pipe; the base is a cavity which is hollow inside and is provided with an opening at the lower part; the air inlet valve seat, the air exhaust valve seat and the instrument pipeline are all arranged above the base and are communicated with the inside of the base; the exhaust pipe is arranged below the exhaust valve seat and extends along the opening direction of the base, one end of the exhaust pipe is communicated with the exhaust valve seat, and the other end of the exhaust pipe is provided with a smoking hole.

In a possible implementation manner, the whole base is of a cylindrical structure, and the air inlet valve seat and the air outlet valve seat are symmetrically arranged at two ends of the base.

In one possible implementation, the exhaust pipe is detachably arranged below the exhaust valve seat; the top end of the air inlet valve seat is provided with an air inlet which is suitable for being communicated with an air injection device; and the top end of the exhaust valve seat is provided with a negative pressure port which is suitable for communicating a negative pressure device.

In a possible implementation mode, a soft metal wire is arranged inside the exhaust pipe, the circumferential cross-sectional area of the soft metal wire is smaller than that of the inner side wall of the exhaust pipe, and a smoke exhaust channel is reserved.

In one possible implementation, the instrument conduit includes a first instrument conduit and a second instrument conduit; the two first instrument pipelines are symmetrically arranged above the base, and the diameter of each first instrument pipeline is within the interval of 5-12 mm; the number of the second instrument pipelines is two, the two second instrument pipelines are symmetrically arranged above the base, and the diameter of the second instrument pipeline is within the range of 3mm-5mm, and the structure of the second instrument pipeline is the same as that of the first instrument pipeline.

In one possible implementation, the instrument tube includes a quick-connect seat, a seal ring joint, and a joint cap; the two ends of the quick connecting seat are provided with openings, the quick connecting seat is fixed above the base and is communicated with the inside of the base, and an inner thread is arranged on the inner side wall of the quick connecting seat; the bottom end of the sealing ring joint is matched with the quick connecting seat in size, the bottom end of the sealing ring joint is inserted into the quick connecting seat in an embedded mode, and the outer side wall of the bottom end of the sealing ring joint is provided with an external thread which is matched with the internal thread; the joint cap is provided with openings at two ends and covers the top end of the sealing ring joint.

In a possible implementation manner, a first seal ring mounting groove is formed in the outer side wall of the bottom end of the seal ring joint; the first sealing ring mounting groove is an annular groove and is circumferentially arranged along the outer side wall of the bottom end of the sealing ring joint, and a first sealing ring which is matched with the first sealing ring is arranged in the first sealing ring mounting groove; the cross section of the first sealing ring is of an X-shaped star-shaped structure.

In one possible implementation, the base includes a base, a connection ring, and a fixing ring; the fixing ring is of an annular structure and is sleeved on the outer side wall of the bottom end of the base, and the bottom end of the fixing ring is bent outwards; the connecting ring is of an annular structure and is sleeved on the outer side wall of the bottom end of the base; the two ends of the base are provided with openings, a second sealing ring mounting groove is formed in the outer side wall of the top end of the base, the second sealing ring mounting groove is an annular groove and is formed along the circumferential direction of the outer side wall of the base, and a second sealing ring is arranged in the second sealing ring mounting groove; and a third sealing ring mounting groove is formed in the outer side wall of the bottom end of the base, the third sealing ring mounting groove is an annular groove and is formed along the circumferential direction of the outer side wall of the base, and a third sealing ring is arranged in the third sealing ring mounting groove.

In a possible implementation manner, the second sealing ring and the third sealing ring are both in an X-shaped star-shaped structure.

In a possible implementation manner, the plurality of smoking holes are arranged in a circumferential array along the bottom end of the side wall of the exhaust pipe.

The beneficial effect of the single channel laparoscopic surgery intercommunication fixing device of this application embodiment: the base is inside cavity, one end open-ended cavity, and air inlet valve seat and exhaust valve seat all set up in the top of base, with the inside intercommunication of base, the smoking hole has been seted up to the one end of blast pipe, and the other end setting is in the below of base, with the exhaust valve seat intercommunication. Therefore, the smoke inlet at the bottom end of the air inlet valve seat and the smoke suction port formed at the bottom end of the exhaust valve seat and the exhaust pipe are in different planes. The bottom end of the air inlet valve seat is filled with fresh air, and due to the height difference between the exhaust pipe and the air inlet valve seat, smoke generated in a deep operation area can be smoothly exhausted by the exhaust valve seat, so that the smoke is prevented from influencing the operation visual field, and the success rate of operation implementation is improved.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic structural diagram of a main body of a single-channel laparoscopic surgical communicating fixture according to an embodiment of the present application;

FIG. 2 shows a schematic cross-sectional view of the main body structure of a single pass laparoscopic surgical access fixture of an embodiment of the present application;

FIG. 3 illustrates a schematic cross-sectional view of an exhaust tube of the body structure of the single pass laparoscopic surgical access fixture of an embodiment of the present application;

FIG. 4 illustrates a top view schematic diagram of the body structure of the single pass laparoscopic surgical access fixture of an embodiment of the present application;

FIG. 5 is a schematic side view of the body structure of a single pass laparoscopic surgical access port fixture of an embodiment of the present application;

FIG. 6 illustrates another side view schematic of the body structure of the single pass laparoscopic surgical access port fixture of an embodiment of the present application;

FIG. 7 shows a cross-sectional view of a sealing ring of the main body structure of the single pass laparoscopic surgical access port fixation device of an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It is to be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience of description or simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a schematic view of a body structure according to an embodiment of the present application. As shown in fig. 1, the single-channel laparoscopic surgery communicating fixture of the embodiment of the present application includes: base 100, inlet valve seat 500, outlet valve seat 600, instrument tubing and exhaust tubing 400. Base 100 is inside cavity, below open-ended cavity, and air inlet valve seat 500, exhaust valve seat 600 and instrument pipeline all set up in the top of base 100, with the inside intercommunication of base 100, and blast pipe 400 sets up in exhaust valve seat 600's below, extends along base 100's opening direction, and blast pipe 400's one end and exhaust valve seat 600 intercommunication, and the smoking hole has been seted up to the other end.

In this embodiment, the smoke inlet at the bottom of the air inlet valve seat 500 and the smoke inlet at the bottom of the exhaust valve seat 600 and the exhaust pipe 400 are located in different planes. The bottom of the air inlet valve seat 500 is filled with fresh air, and due to the height difference between the exhaust pipe 400 and the air inlet valve seat 500, the exhaust valve seat 600 can smoothly exhaust smoke generated in a deep operation area, so that the smoke is prevented from influencing the operation visual field, and the operation success rate is improved.

In a specific embodiment, referring to fig. 2, fig. 2 shows a schematic cross-sectional view of a main structure of a single-channel laparoscopic surgery communication fixing device according to an embodiment of the present application, the base 100 is a cylindrical structure as a whole, and the air intake valve seat 500 and the air exhaust valve seat 600 are arranged at two ends of the top of the base 100 in decibel symmetry, so that a distance is left between a smoke inlet formed at the bottom end of the air intake valve seat 500 and an air outlet 610 formed at the bottom end of the air exhaust valve seat 600, thereby preventing fresh air filled in the air intake valve seat 500 from being sucked away by the air outlet 610 formed on the adjacent air exhaust valve seat 600, reducing the working efficiency of the air intake valve seat 500, and avoiding waste.

Further, in this embodiment, the top end of the air valve seat is provided with an air inlet 510 suitable for communicating with an air injection device, and the top end of the air exhaust valve seat 600 is provided with a negative pressure port suitable for communicating with a negative pressure device. It should be noted here that the insufflation device and the negative pressure device are both conventional techniques or means used in the art, wherein the insufflation device is used for introducing fresh air into the abdominal cavity, and the negative pressure device is used for absorbing the gas generated in the abdominal cavity to affect the operation.

Further, in this embodiment, a hard film fixing member 260, a hard film 270, a soft film fixing member 280 and a soft film 290 are further disposed inside the cap 240. The hard diaphragm 270 and the soft diaphragm 290 are sequentially arranged from the top end of the instrument tube, the hard diaphragm fixing member 260 is arranged below the joint cap 240 and used for fixing the hard diaphragm 270, and the soft diaphragm fixing member 280 is arranged below the joint cap 240 and used for fixing the soft diaphragm 290. Furthermore, a sealing gasket 250 is provided between the hard membrane fixture 260 and the adapter cap 240 to seal and fix the adapter cap 240 to the inside of the instrument tube.

Wherein, a compression ring 2110 is arranged below the soft membrane fixing part 280, and is used for compressing a single sealing part 2111 arranged in the instrument pipeline, so that the instrument pipeline is a one-way pipeline, and harmful gas generated in the abdominal cavity can be prevented from floating out through the instrument pipeline.

In an embodiment, referring to fig. 1 and 3, fig. 3 is a schematic cross-sectional view illustrating an exhaust pipe 400 of a main structure of a single-channel laparoscopic surgery communication fixture according to an embodiment of the present application, wherein a soft metal wire 410 is disposed inside the exhaust pipe 400, and a circumferential cross-sectional area of the soft metal wire 410 is smaller than a circumferential cross-sectional area of an inner sidewall of the exhaust pipe 400, so as to leave a smoke exhaust channel. The exhaust pipe 400 has a certain length, and a certain distance is left between the bottom end of the exhaust pipe 400 and the bottom end of the base 100, so that the exhaust pipe 400 can exhaust the internal smoke of the abdominal cavity. In addition, the exhaust pipe 400 is made of a flexible material, so that a person in the field can control the exhaust position of the exhaust pipe 400 during an operation. However, when the exhaust pipe 400 is used, the exhaust pipe 400 may be bent excessively, and other substances may be sucked into the exhaust pipe 400, thereby blocking the duct inside the exhaust pipe 400. Therefore, the soft metal wire 410 is arranged in the exhaust pipe 400, and the clamping portion arranged at the bottom end of the soft metal wire 410 is clamped in the blind hole formed in the bottom end in the exhaust pipe 400 for fixing. Furthermore, the circumferential cross-sectional area of the soft wire 410 is smaller than the circumferential cross-sectional area of the inner side wall of the exhaust pipe 400, so that a smoke exhaust channel is reserved, and the blockage caused by excessive bending is avoided.

The exhaust pipe 400 is made of a flexible tube, and the soft wire 410 is disposed inside the exhaust pipe 400. In the operation process, the exhaust pipe 400 can stretch into the blood coagulation part of the abdomen to absorb smoke generated in the blood coagulation process, and the smoke suction port of the exhaust pipe 400 can be fixed in a certain posture due to certain plasticity of the exhaust pipe 400 caused by the soft metal wire 410, so that the smoke generated can be better absorbed.

Further, in this embodiment, the plurality of smoking holes are formed and arranged in a circumferential array along the sidewall of the bottom end of the exhaust pipe 400, so as to improve the smoking efficiency of the exhaust pipe 400.

In a specific embodiment, the single-channel laparoscopic surgery communicating fixture further comprises an instrument conduit disposed above the base 100, communicating with the inside of the base 100, for inserting endoscopic instruments.

Further, in this embodiment, referring to fig. 1 and 4, fig. 4 is a schematic top view illustrating the main structure of the single-channel laparoscopic surgery communicating fixture according to the embodiment of the present application, wherein the instrument channel includes a first instrument channel 200 and a second instrument channel 300, the first instrument channel 200 is provided in two numbers, symmetrically disposed above the base 100, and the channel diameter of the first instrument channel 200 is within the interval of 5mm-12 mm. The number of the second instrument pipelines 300 is two, the two second instrument pipelines are symmetrically arranged above the base 100, the diameter of each second instrument pipeline 300 is within the range of 3mm-5mm, and the structure of each second instrument pipeline 300 is the same as that of the first instrument pipeline 200. Two instrument pipelines with different specifications are communicated above the base 100 and are respectively arranged in a 3mm-5mm interval and a 5mm-12mm interval, so that the instrument pipelines can be suitable for most endoscope instruments.

Further, in this particular embodiment, the instrument tube includes a quick-connect hub 210, a seal ring nipple 230, and a nipple 240. The both ends opening of connect the seat 210 soon, fix the top at base 100, communicate with the inside of base 100, and offered the internal thread on the inside wall of connect the seat 210 soon, the bottom size and the connect the seat 210 looks adaptation soon of sealing washer joint 230, the bottom of sealing washer joint 230 inlays the inside of inserting at connect the seat 210 soon, and has offered the external screw thread on the bottom lateral wall of sealing washer joint 230, with the internal thread phase-match, connect 240 both ends openings, the cover is established on the top of sealing washer joint 230. The sealing ring joint 230 is detachably connected with the quick connection seat 210 through external threads arranged on the outer side wall of the bottom end, so that the instrument pipelines can be quickly disassembled and replaced, can be adapted to instrument pipelines with different inner diameter sizes, and is suitable for various abdominal cavity operation environments.

Further, in this embodiment, a first sealing ring 220 mounting groove is formed in the outer side wall of the bottom end of the sealing ring joint 230, the first sealing ring 220 mounting groove is an annular groove and is formed along the circumferential direction of the outer side wall of the bottom end of the sealing ring joint 230, and the first sealing ring 220 mounting groove is internally provided with the first sealing ring 220 in a matched manner. First sealing washer 220 is annular structure, with first sealing washer 220 mounting groove looks adaptation, and the setting of first sealing washer 220 makes connecting seat and sealing washer joint 230 be connected more firm, in addition, has still improved apparatus pipeline leakproofness.

Further, referring to fig. 7, fig. 7 is a cross-sectional view of a sealing ring of a main body structure of a single-channel laparoscopic surgery communication fixture according to an embodiment of the present application, wherein a cross section of the first sealing ring 220 is a star-shaped structure in an "X" shape. The conventional sealing ring mostly adopts a structure with a circular cross section, can only seal in a single direction, has a sealing effect, and has low sealing efficiency. The sealing ring with the cross section of the X-shaped structure is adopted, the sealing can be simultaneously carried out in the axial direction and the radial direction, and the single star-shaped sealing ring can achieve double sealing in each direction (the axial direction and the radial direction). The double sealing rings in each direction have two rings, and compared with the traditional sealing ring with a circular structure in the cross section, the sealing ring can achieve better sealing effect. Moreover, the non-circular star-shaped cross section design is adopted, and rolling generated in the dismounting process is effectively avoided.

In one embodiment, the base includes a base 110, a connection ring 150, and a retaining ring 180. The fixing ring 180 is of an annular structure and is sleeved on the outer side wall of the bottom end of the base 110, the bottom end of the fixing ring 180 is outwards bent to form a blocking portion, the bottom end of the base is embedded into the abdomen in the using process, and the blocking portion is arranged to prevent air intake and exhaust devices from sliding out. The connection ring 150 is a ring structure and is disposed on the outer sidewall of the bottom end of the base 110. The two ends of the base 110 are open, and a second sealing ring 160 mounting groove is formed in the outer side wall of the top end of the base 110, the second sealing ring 160 mounting groove is an annular groove, and is formed along the circumferential direction of the outer side wall of the base 110, a second sealing ring 160 is arranged in the second sealing ring 160 mounting groove, a third sealing ring 120 mounting groove is formed in the outer side wall of the bottom end of the base 110, the third sealing ring 120 mounting groove is an annular groove, and is formed along the circumferential direction of the outer side wall of the base 110, and a third sealing ring 120 is arranged in the third sealing ring 120 mounting groove. The second seal ring 160 and the third seal ring 120 are both of an "X" shaped star configuration. The base 110 is disposed to provide a vertical support for the base 100. The bottom end of the fixing ring 180 is bent outwards, the contact area of the bottom end of the fixing ring in the circumferential direction is increased, and the base 110 and the connecting ring 150 are matched to provide mechanical support for the base 100 and the first instrument pipeline 200, the second instrument pipeline 300, the air inlet valve seat 500, the air outlet valve seat 600 arranged on the base 100 and the exhaust pipe 400 arranged below the base 100, so that the accuracy of operation is improved.

Further, in this embodiment, a locking portion extends from the middle of the base 100, the locking portion is provided with a pin 130 and a latch 140, so that the base 110 can rotate circumferentially, and the pin 130 and the latch 140 can lock the base 110, so as to fix the base 110 on the fixing ring 180.

Referring to fig. 5 and 6, control valve seats are disposed on the intake valve seat 500 and the exhaust valve seat 600, and are used for controlling the opening and closing of the intake valve seat 500 or the exhaust valve seat 600. In addition, the air inlet 510 and the air outlet 610 are both conventional openings, and may be adapted to various sizes of inflator or negative pressure devices.

The foregoing description of the embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A single channel laparoscopic surgery intercommunication fixing device characterized in that includes:

the device comprises a base, an air inlet valve seat, an air exhaust valve seat, an instrument pipeline and an exhaust pipe;

the base is a cavity which is hollow inside and is provided with an opening at the lower part;

the air inlet valve seat, the air exhaust valve seat and the instrument pipeline are all arranged above the base and are communicated with the inside of the base;

the exhaust pipe is arranged below the exhaust valve seat and extends along the opening direction of the base, one end of the exhaust pipe is communicated with the exhaust valve seat, and the other end of the exhaust pipe is provided with a smoking hole.

2. The single-channel laparoscopic surgery communication fixture of claim 1, wherein said base is a cylindrical structure, and said air inlet valve seat and said air outlet valve seat are symmetrically disposed at two ends of said base.

3. The single pass laparoscopic surgical access port fixture of claim 2, wherein said exhaust tube is removably disposed below said exhaust valve seat;

the top end of the air inlet valve seat is provided with an air inlet which is suitable for being communicated with an air injection device; and a negative pressure port is formed at the top end of the exhaust valve seat and is suitable for communicating a negative pressure device.

4. The single-channel laparoscopic surgery communication fixture of claim 1, wherein a soft metal wire is disposed inside the exhaust pipe, and the circumferential cross-sectional area of the soft metal wire is smaller than that of the inner side wall of the exhaust pipe, leaving a smoke exhaust channel.

5. The single pass laparoscopic surgical access port fixture of claim 1, wherein said instrument conduit comprises a first instrument conduit and a second instrument conduit;

the two first instrument pipelines are symmetrically arranged above the base, and the diameter of each first instrument pipeline is within the interval of 5-12 mm;

the number of the second appliance pipelines is two, the two second appliance pipelines are symmetrically arranged above the base, and the diameter of each second appliance pipeline is within the range of 3mm-5mm

The second instrument channel is structurally identical to the first instrument channel.

6. The single pass laparoscopic surgical access port fixture of claim 5, wherein said instrument tubing comprises a quick-connect seat, a seal ring joint, and a joint cap;

the two ends of the quick connecting seat are provided with openings, the quick connecting seat is fixed above the base and is communicated with the inside of the base, and an inner thread is arranged on the inner side wall of the quick connecting seat;

the bottom end of the sealing ring joint is matched with the quick connecting seat in size, the bottom end of the sealing ring joint is inserted into the quick connecting seat in an embedded mode, and the outer side wall of the bottom end of the sealing ring joint is provided with an external thread which is matched with the internal thread;

the joint cap is provided with openings at two ends and covers the top end of the sealing ring joint.

7. The single-channel laparoscopic surgery communicating and fixing device of claim 6, wherein a first seal ring mounting groove is formed on the outer side wall of the bottom end of the seal ring joint;

the first sealing ring mounting groove is an annular groove and is circumferentially arranged along the outer side wall of the bottom end of the sealing ring joint, and a first sealing ring which is matched with the first sealing ring is arranged in the first sealing ring mounting groove;

the cross section of the first sealing ring is of an X-shaped star-shaped structure.

8. The single pass laparoscopic surgical access port fixture of claim 1, wherein said base includes a base, an attachment ring and a securing ring;

the fixing ring is of an annular structure and is sleeved on the outer side wall of the bottom end of the base, and the bottom end of the fixing ring is bent outwards;

the connecting ring is of an annular structure and is sleeved on the outer side wall of the bottom end of the base;

the two ends of the base are opened, a second sealing ring mounting groove is formed in the outer side wall of the top end of the base, the second sealing ring mounting groove is an annular groove and is formed in the circumferential direction of the outer side wall of the base, and a second sealing ring is arranged in the second sealing ring mounting groove; and a third sealing ring mounting groove is formed in the outer side wall of the bottom end of the base, the third sealing ring mounting groove is an annular groove and is formed along the circumferential direction of the outer side wall of the base, and a third sealing ring is arranged in the third sealing ring sealing mounting groove.

9. The single pass laparoscopic surgery communication fixture of claim 8, wherein said second and third sealing rings are both "X" shaped star-shaped structures.

10. The single-channel laparoscopic surgery communication fixture of claim 4, wherein said smoking holes are arranged in a plurality of circumferential arrays along the bottom end of the sidewall of said exhaust tube.

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