CN116035632A

CN116035632A - Access channel for single-port laparoscopic surgery

Info

Publication number: CN116035632A
Application number: CN202310201310.9A
Authority: CN
Inventors: 邢峰; 宋志娇; 王硕; 冯丽丽; 张瑜倩
Original assignee: Shanghai Jing'an Zhabei Central Hospital
Current assignee: Shanghai Jing'an Zhabei Central Hospital
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-05-02
Anticipated expiration: 2043-03-03
Also published as: CN116035632B

Abstract

The invention relates to the technical field of surgical instruments, in particular to an access channel for single-port laparoscopic surgery. The invention provides an access channel for single-port laparoscopic surgery, which comprises a connecting ring, a film channel, a mounting frame, a soft cover, an operation pipeline, a mist exhausting mechanism and the like, wherein the film channel is connected to the connecting ring, the mounting frame is clamped on the connecting ring, the soft cover is connected to the mounting frame, the soft cover is rotatably connected with four operation pipelines for operating surgical tools, and the mist exhausting mechanism is used for exhausting surgical smoke in the abdominal cavity of a patient. According to the invention, single-hole laparoscopic surgery can be performed on a patient through the operation pipeline and the film channel, when the electric valve is opened, air blown in through the right vent pipe blows the wind wheel to rotate, so that the first sliding frame moves left and right in a reciprocating manner, and the first sliding frame can pump out air in the first connecting pipe, so that surgical smoke in the abdominal cavity can be pumped out in multiple directions automatically through the perforated hose and the perforated ring, and the working efficiency is improved.

Description

Access channel for single-port laparoscopic surgery

Technical Field

The invention relates to the technical field of surgical instruments, in particular to an access channel for single-port laparoscopic surgery.

Background

The single-port laparoscopic surgery refers to that surgical instruments and equipment enter an abdominal cavity through a navel hole in the surgery, an operation incision is shielded by utilizing the navel part wrinkled wall, the single-port laparoscopic surgery has the characteristics of prominent minimally invasive property, attractive appearance, less postoperative pain and the like, when the single-port laparoscopic surgery is required to be carried out on a patient, an access channel with a plurality of operation holes is usually required to be installed at the incision position of the navel part of the patient, an artificial pneumoperitoneum is built again, the peritoneal wall is separated from viscera, and then surgical tools such as an ultrasonic surgical knife, an abdominal endoscope, an electric surgical knife and the like extend into the abdominal cavity of the patient through the access channel, so that the single-port laparoscopic surgery is carried out on the patient.

When a single-hole laparoscopic surgery is performed on a patient, tissue proteins and fat can be destroyed and vaporized by using energy instruments such as a high-frequency electrocautery knife, a laser knife, an ultrasonic scalpel and the like, so that surgical smoke is generated, a lens of the laparoscope can be blurred by the surgical smoke, the image definition of laparoscopic conduction is affected, the surgery is difficult to smoothly perform, and secondly, the surgical smoke also contains toxic and harmful substances, and the surgical smoke can cause harm to operators after being released into the air.

The Chinese patent with the patent publication number of CN114903575A discloses a single-port laparoscopic surgery access platform, which comprises an incision protecting sleeve, an operating platform and a smoke exhausting assembly; any two of the notch protection sleeve, the operation platform and the smoke exhaust assembly can be clamped and the clamping part is sealed; the smoke exhaust assembly comprises a connecting ring, a smoke exhaust channel connected to the outer side of the connecting ring, a plurality of miniature smoke exhaust pipes connected to the inner side of the connecting ring and expansion rings fixedly connected with the tail ends of all the smoke exhaust pipes; the connecting ring is provided with a sealed inner cavity for communicating the smoke discharging channel and all the smoke discharging pipes.

The above-mentioned patent is through discharging the operation smog in the tobacco pipe with the patient's abdominal cavity, but the tobacco pipe of discharging is located the shallower position of patient's abdominal cavity, is difficult to take out the operation smog of patient's abdominal cavity depths, leads to not taking out operation smog and makes the camera lens of peritoneoscope fuzzy, influences work efficiency, and secondly, above-mentioned patent still needs in addition at the end connection air extraction device of smoke discharging channel, just can take out the smog in the abdominal cavity, and the operation is comparatively troublesome, influences work efficiency.

Disclosure of Invention

The invention aims to overcome the defects that the existing single-port laparoscopic surgery access platform is difficult to extract the surgical smoke in the deep abdominal cavity of a patient, and an air extractor is needed to be additionally connected to extract the smoke in the abdominal cavity, so that the operation is troublesome and the working efficiency is affected.

The technical proposal is as follows: the utility model provides a single port laparoscopic surgery's access passageway, including the go-between, the film passageway, interior lantern ring and mounting bracket, be connected with the film passageway on the go-between, be connected with interior lantern ring on the film passageway, the joint has the mounting bracket on the go-between, still including the swivel becket, the soft cover, operating duct, the breather pipe, the air outlet valve, admission valve and fog discharging mechanism, the swivel becket is connected with the swivel becket on the mounting bracket, swivel becket and mounting bracket sealing contact are connected with the soft cover on the mounting bracket, the soft cover is last to articulate there are four operating duct that are used for operating surgical tools, the intercommunication has two breather pipes on the soft cover, install the air outlet valve on the breather pipe on the left side, install the admission valve on the breather pipe on the right side, fog discharging mechanism is used for discharging the operation smog in the patient abdominal cavity.

Optionally, the fog discharging mechanism comprises a connecting frame, a wind wheel, a transmission rod, a cylinder, a first sliding frame, an electric valve, a first connecting pipe, a first one-way valve, a perforated ring and a perforated hose, wherein the connecting frame is connected to the soft cover, the wind wheel is rotationally connected to the connecting frame, one end of the right ventilating pipe, far away from the soft cover, is close to the wind wheel, the transmission rod is connected to the wind wheel, two cylinders are connected to the rotating ring, the first sliding frame is connected to the cylinders in a sliding mode, one sides, far away from each other, of the first sliding frames are in sealing contact with the adjacent cylinders, the transmission rod moves on the two first sliding frames, the electric valve is mounted at one ends, far away from each other, of the cylinders are communicated with the first connecting pipe, the first one-way valve is mounted at the upper end of the first connecting pipe, the perforated ring is communicated between the two first connecting pipes, and the two perforated hoses are communicated on the perforated ring.

Optionally, the anti-blocking mechanism is used for blowing out the liquid blocked on the perforated hose, the anti-blocking mechanism comprises a guide frame, a connecting cylinder, a second one-way valve, a second sliding frame, a first compression spring, a second connecting pipe and a third one-way valve, the soft cover is connected with the guide frame, the connecting cylinders are all connected with the connecting cylinder, the second one-way valves are all installed on the connecting cylinders, the second sliding frames are all connected with the connecting cylinders in a sliding mode, the first compression springs are all connected between the second sliding frames and the adjacent connecting cylinders, one sides of the second sliding frames, which are far away from each other, are all in sealing contact with the adjacent connecting cylinders, one ends, which are close to each other, of the connecting cylinders, are all communicated with the second connecting pipes, the second connecting pipes are all communicated with the adjacent perforated hose, and the third one-way valves are all installed on the second connecting pipes.

Optionally, still including stop gear, stop gear is including the connecting block, the slide bar, the limiting plate, the second compression spring, third compression spring and stopper, it has the round hole to open on the soft cover, be connected with the connecting block on the soft cover, the connecting block is located the round hole, sliding connection has the slide bar on the connecting block, be connected with the limiting plate that is used for carrying out spacing to the wind wheel on the slide bar, the limiting plate down motion can contact with the wind wheel, be connected with the second compression spring between slide bar and the connecting block, it has two spacing holes to open on the connecting block, be connected with two third compression springs on the slide bar, the one end that third compression spring kept away from each other all is connected with the stopper that is used for carrying out spacing to the limiting plate, the stopper all vertically aligns with adjacent spacing hole, the stopper down motion all can block in adjacent spacing hole.

Optionally, the fixing mechanism comprises a fixing block and rubber blocks, wherein the fixing block is rotationally connected with two fixing blocks for fixing the connecting ring and the mounting frame, the connecting ring is connected with two rubber blocks, and the fixing blocks are clamped on the adjacent rubber blocks.

Optionally, the sealing device further comprises a sealing ring, wherein the sealing ring used for sealing a gap between the connecting ring and the mounting frame is connected to the connecting ring, and the sealing ring is in sealing contact with the mounting frame.

Optionally, the drive rod is offset from the centre of the wind wheel.

Optionally, the sides of the limiting blocks, which are far away from each other, are all curved surfaces.

The invention has the following advantages:

1. according to the invention, single-hole laparoscopic surgery can be performed on a patient through the operation pipeline and the film channel, when the electric valve is opened, air blown in through the right vent pipe blows the wind wheel to rotate, so that the first sliding frame moves left and right in a reciprocating manner, and the first sliding frame can pump out air in the first connecting pipe, so that surgical smoke in the abdominal cavity can be pumped out in multiple directions automatically through the perforated hose and the perforated ring, and the working efficiency is improved.

2. The rotating ring can drive the second sliding frame to rotate anticlockwise, and the second sliding frame can reciprocate leftwards and rightwards through the cooperation of the guide frame and the first compression spring, so that the perforated hose is blown, liquid blocked on the perforated hose can be blown out, the first connecting pipe can be positioned at other positions deep in the abdominal cavity of a patient, and therefore surgical smoke at other positions deep in the abdominal cavity of the patient is extracted, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partially cut-away structure of the present invention.

Fig. 3 is a schematic perspective view of the mist exhausting mechanism of the present invention.

Fig. 4 is a schematic perspective view of a connecting frame, a wind wheel, a transmission rod, a cylinder, a first sliding frame, an electric valve, a first connecting pipe and a first one-way valve.

Fig. 5 is a schematic perspective view of an anti-blocking mechanism according to the present invention.

Fig. 6 is an enlarged view of the portion a of the present invention.

Fig. 7 is a schematic perspective view of a limiting mechanism according to the present invention.

Fig. 8 is a schematic view of a partially cut-away structure of a spacing mechanism of the present invention.

Fig. 9 is a schematic perspective view of the fixing mechanism and the seal ring of the present invention.

Reference numerals in the figures: 1. the device comprises a connecting ring, 2, a film channel, 3, an inner sleeve ring, 4, a mounting frame, 5, a rotating ring, 6, a soft cover, 61, an operation pipeline, 7, a vent pipe, 8, an air outlet valve, 81, an air inlet valve, 9, a mist exhausting mechanism, 90, a connecting frame, 91, a wind wheel, 92, a transmission rod, 93, a cylinder, 94, a first sliding frame, 95, an electric valve, 96, a first connecting pipe, 97, a first one-way valve, 98, an annular ring, 99, a flexible pipe with holes, 10, an anti-blocking mechanism, 101, a guide frame, 102, a connecting cylinder, 103, a second one-way valve, 104, a second sliding frame, 105, a first compression spring, 106, a second connecting pipe, 107, a third one-way valve, 11, a limiting mechanism, 111, a round hole, 112, a connecting block, 113, a sliding rod, 114, a limiting plate, 115, a second compression spring, 116, a third compression spring, 117, a limiting block, 118, a limiting hole, 12, a fixing mechanism, 121, a fixing block, 122, a rubber block, 13 and a sealing ring.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description, but does not limit the scope of protection and the application of the invention.

Example 1

The utility model provides an access passageway of single port laparoscopic surgery, as shown in fig. 1-4, including go-between 1, film passageway 2, interior lantern ring 3, mounting bracket 4, the rotation ring 5, soft lid 6, operating duct 61, breather pipe 7, air outlet valve 8, air inlet valve 81 and fog discharging mechanism 9, go-between 1 lower part is connected with film passageway 2, film passageway 2 bottom is connected with interior lantern ring 3, the joint has mounting bracket 4 on the go-between 1, the last rotation of mounting bracket 4 is connected with the rotation ring 5, rotation ring 5 and the sealed contact of mounting bracket 4, the mounting bracket 4 top is connected with soft lid 6, the soft lid 6 top articulates there are four operating duct 61, when interior lantern ring 3 is located patient's abdominal cavity, can stretch into the operation instrument in the abdominal cavity of patient through operating duct 61, thereby carry out single port laparoscopic surgery to the patient, soft lid 6 top intercommunication has two breather pipes 7, install air outlet valve 8 on the breather pipe 7 on the left, install air inlet valve 81 on the abdominal cavity 7 on the right side, fog discharging mechanism 9 is used for discharging the operation smog in the patient.

As shown in fig. 1-4, the mist exhausting mechanism 9 comprises a connecting frame 90, a wind wheel 91, a transmission rod 92, a cylinder 93, a first sliding frame 94, an electric valve 95, a first connecting pipe 96, a first one-way valve 97, a perforated ring 98 and a perforated hose 99, wherein the connecting frame 90 is connected to the lower portion of the soft cover 6, the wind wheel 91 is rotatably connected to the connecting frame 90, the left end of the right ventilating pipe 7 is close to the wind wheel 91, the transmission rod 92 is welded to the bottom of the wind wheel 91, the transmission rod 92 deviates from the center of the wind wheel 91, the cylinder 93 is symmetrically welded to the rotating ring 5, the first sliding frame 94 is connected to the cylinder 93 in a sliding manner, one side of the first sliding frame 94, which is far away from each other, is in sealing contact with the adjacent cylinder 93, the transmission rod 92 moves on the two first sliding frames 94, one end of the cylinder 93, which is far away from each other, is provided with the electric valve 95, the bottom of the cylinder 93 is communicated with the first connecting pipe 96, the first one-way valve 97 is mounted on the upper end of the first connecting pipe 96, the two first connecting pipes 96 are communicated with the perforated ring 98, the bottom of the perforated ring 98 is symmetrically communicated with the bottom of the perforated ring 98, the first connecting pipe 99 is mutually communicated with the center of the first connecting pipe 99, and the first connecting pipe 94 is far away from the inner cavity 98, and the air is far away from the abdominal cavity 98, and the abdominal cavity is moved in the direction by the direction of the patient.

When the single-port laparoscopic surgery is needed to be performed on a patient, the electric valve 95 is in a closed state, the inner sleeve ring 3 is manually extruded, the inner sleeve ring 3 has certain elasticity, the inner sleeve ring 3 can deform, so that the inner sleeve ring 3 can extend into the abdominal cavity of the patient from the incision of the umbilical part of the patient, the device is driven to move downwards, when the inner sleeve ring 3 is positioned in the abdominal cavity of the patient, the inner sleeve ring 3 is restored to the original state, at the moment, the film channel 2 is positioned at the incision of the umbilical part of the patient, the skin of the incision of the umbilical part of the patient can be spread, so that a channel capable of performing the surgery is formed, the right ventilating pipe 7 is externally connected with the inflating device, the air inlet valve 81 is opened, the inflating device is controlled to blow air into the access channel, the abdominal cavity of the patient is inflated, the artificial pneumoperitoneum is built, at the moment, the inside of the cylinder 93 is in a sealed state, the air blown by the right ventilating pipe 7 cannot blow the wind wheel 91 to rotate, when the abdominal cavity of a patient is filled with a proper amount of air, the air inlet valve 81 is closed, then surgical tools such as an ultrasonic surgical knife, an abdominal endoscope and an electric surgical knife extend into the abdominal cavity of the patient through the operation pipeline 61, so that single-hole laparoscopic surgery can be performed, when surgical smoke is generated in the abdominal cavity, the air inlet valve 81 is opened, the air inlet valve 81 is controlled to blow air into the access channel, the electric valve 95 is simultaneously controlled to be opened, the air blown by the right ventilating pipe 7 blows the air wheel 91 to rotate, the transmission rod 92 is driven to rotate, so that the first sliding frame 94 reciprocates left and right, when the first sliding frame 94 on the left moves leftwards, the first sliding frame 94 on the left extrudes and discharges the air in the left cylinder 93 from the electric valve 95 on the left, when the first sliding frame 94 on the left moves rightwards, the air in the first connecting pipe 96 on the left side can be extracted, thereby draw the left operation smog of abdominal cavity depths through foraminiferous hose 99, and can draw operation smog with the multi-azimuth through foraminiferous ring 98, the same reason, foraminiferous hose 99 on right side also can draw operation smog on the right side of abdominal cavity depths, so reciprocating operation, can diversely automatic many times draw the operation smog in the patient's abdominal cavity, improve work efficiency, when the operation of haplopore laparoscope is finished, separate the breather pipe 7 on right side with aerating device, and open air outlet valve 8, the gas in the patient's abdominal cavity can be discharged through left breather pipe 7, again pull out the operation instrument, then upwards pull mounting bracket 4, make mounting bracket 4 and go-between 1 separation, then can take off this device from the patient umbilical region.

Example 2

On the basis of embodiment 1, as shown in fig. 2, 5 and 6, the anti-blocking mechanism 10 is further included, the anti-blocking mechanism 10 includes a guide frame 101, a connecting cylinder 102, a second one-way valve 103, a second sliding frame 104, a first compression spring 105, a second connecting pipe 106 and a third one-way valve 107, the bottom of the soft cover 6 is connected with the guide frame 101, one side of the cylinder 93 is welded with the connecting cylinder 102, the top of the connecting cylinder 102 is provided with the second one-way valve 103, the connecting cylinder 102 is connected with the second sliding frame 104 in a sliding manner, a first compression spring 105 is connected between the second sliding frame 104 and the adjacent connecting cylinder 102, one side of the second sliding frame 104, which is far away from each other, is in sealing contact with the adjacent connecting cylinder 102, one end, which is close to each other, of the second sliding frames 104, is in sliding manner inside the guide frame 101, is provided with the second connecting pipe 106, the bottom of the second connecting pipe 106 is in communication with the adjacent perforated hose 99, the third one-way valve 107 is arranged at the bottom of the second connecting pipe 106, when the second sliding frame 104 moves towards one side, the second sliding frame 104 is far away from each other, the second sliding frame 104 can press the hose 99 to the perforated hose 99, and the second connecting pipe 99 can be blocked by the air blowing hose 99, and the air can be prevented from being blown out.

When the perforated hose 99 is blocked, the rotating ring 5 is manually rotated anticlockwise to drive the cylinder 93, the connecting cylinder 102 and the second sliding frame 104 to rotate anticlockwise, when the guide frame 101 extrudes the right second sliding frame 104 to move leftwards, the first compression spring 105 compresses, gas can enter the right connecting cylinder 102 through the right second one-way valve 103, when the right second sliding frame 104 is separated from the guide frame 101, the first compression spring 105 is restored to the original state to drive the right second sliding frame 104 to move rightwards to reset, the gas in the right connecting cylinder 102 can be extruded into the right second connecting pipe 106, so that the right perforated hose 99 can be blown, the liquid blocked on the right perforated hose 99 can be blown out, the liquid blocked on the left perforated hose 99 can be blown out, the perforated hose 99 can be prevented from being blocked by repeated reciprocating operations, and the cylinder 93 can drive the first connecting pipe 96 and the perforated ring 98 to rotate, the first connecting pipe 96 can be extruded into the right second connecting pipe 106, and smoke in other deep positions of a patient can be located in the patient.

As shown in fig. 1, fig. 2, fig. 7 and fig. 8, the device further comprises a limit mechanism 11, the limit mechanism 11 comprises a connecting block 112, a sliding rod 113, a limit plate 114, a second compression spring 115, a third compression spring 116 and a limit block 117, a round hole 111 is formed in the middle of the soft cover 6, the connecting block 112 is welded in the middle of the soft cover 6, the connecting block 112 is located in the round hole 111, the sliding rod 113 is connected to the connecting block 112 in a sliding manner, the limit plate 114 is welded at the bottom of the sliding rod 113, when an artificial pneumoperitoneum is required to be established, the limit plate 114 moves downwards and contacts with the wind wheel 91, so that the wind wheel 91 can be limited, the wind wheel 91 is prevented from rotating, gas can be filled into the abdominal cavity of a patient, a second compression spring 115 is connected between the sliding rod 113 and the connecting block 112, limit holes 118 are symmetrically formed in the lower portion of the connecting block 112, limit blocks 117 are symmetrically connected to the third compression spring 116, one ends of the third compression springs 116, the limit blocks 117 are respectively located at one sides of the ends far away from each other, the limit blocks 117 are respectively aligned longitudinally with the adjacent limit holes 118, and the downward movement of the limit blocks 117 can be blocked in the adjacent limit plates 118, so that the limit plates 118 can be limited by the limit plates and the limit plates 118.

Initially, the third compression spring 116 is in a compressed state, when an artificial pneumoperitoneum needs to be established, the sliding rod 113 is pressed downwards, the limiting plate 114, the third compression spring 116 and the limiting block 117 are driven to move downwards, the second compression spring 115 stretches, when the limiting block 117 is aligned with the adjacent limiting hole 118, the third compression spring 116 is restored to the original state, the limiting block 117 is driven to move in the direction away from each other, at the moment, the limiting block 117 is clamped in the adjacent limiting hole 118, the sliding rod 113 and the limiting plate 114 can be limited, the bottom of the limiting plate 114 is contacted with the wind wheel 91, the limiting plate 114 can limit the wind wheel 91, so that the wind wheel 91 is prevented from rotating, when gas smoke in the abdominal cavity of a patient needs to be extracted, the limiting block 117 is pressed downwards by manpower, the third compression spring 116 compresses, when the limiting block 117 leaves the limiting hole 118, the second compression spring 115 returns to the original state, the sliding rod 113, the limiting plate 114, the third compression spring 116 and the limiting block 117 move upwards to reset, the limiting plate 114 is blocked in the adjacent limiting hole 118, the wind wheel 91 can be separated, the air is blown into the wind wheel 91, and the air in the abdominal cavity 7 can be blown out through the wind wheel 91.

As shown in fig. 1 and 9, the fixing mechanism 12 is further included, the fixing mechanism 12 includes a fixing block 121 and a rubber block 122, the fixing block 121 is symmetrically and rotatably connected to the mounting frame 4, the rubber block 122 is symmetrically connected to the outer side of the connecting ring 1, the fixing block 121 is clamped on the adjacent rubber block 122, the connecting ring 1 and the mounting frame 4 can be fixed, the mounting frame 4 is prevented from being separated from the connecting ring 1, the fixing block 121 is initially clamped on the adjacent rubber block 122, and therefore the connecting ring 1 and the mounting frame 4 can be fixed.

As shown in fig. 2 and 9, the connecting ring 1 is connected with a sealing ring 13, the top of the sealing ring 13 is in sealing contact with the mounting frame 4, and when an artificial pneumoperitoneum needs to be established for a patient, the sealing ring 13 can seal a gap between the connecting ring 1 and the mounting frame 4 to prevent gas leakage.

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a single port laparoscopic surgery's access passageway, including the go-between, the film passageway, interior lantern ring and mounting bracket, be connected with the film passageway on the go-between, be connected with interior lantern ring on the film passageway, the joint has the mounting bracket on the go-between, characterized by still including the swivel becket, the soft cover, operating duct, the breather pipe, the air outlet valve, admission valve and fog discharging mechanism, swivel joint has the swivel becket on the mounting bracket, swivel becket and mounting bracket sealing contact are connected with the soft cover on the mounting bracket, it has four operating duct that are used for operating surgical tools to articulate on the soft cover, the intercommunication has two breather pipes on the soft cover, install the air outlet valve on the breather pipe of left side, install the admission valve on the breather pipe of right side, fog discharging mechanism is used for discharging the surgical smoke in the patient's abdominal cavity.

2. The access channel for single-port laparoscopic surgery according to claim 1, wherein the mist discharging mechanism comprises a connecting frame, a wind wheel, a transmission rod, cylinders, a first sliding frame, an electric valve, first connecting pipes, first one-way valves, a perforated ring and a perforated hose, the connecting frame is connected to the soft cover, the wind wheel is rotatably connected to the connecting frame, one end of the right ventilating pipe, far away from the soft cover, is close to the wind wheel, the transmission rod is connected to the wind wheel, two cylinders are connected to the rotating ring, the first sliding frames are connected to the cylinders in a sliding mode, one sides, far away from each other, of the first sliding frames are in sealing contact with the adjacent cylinders, the transmission rod moves on the two first sliding frames, the electric valves are installed at one ends, far away from each other, of the cylinders are all communicated with the first connecting pipes, the first one-way valves are installed at the upper ends of the first connecting pipes, the perforated ring is communicated between the two first connecting pipes, and the perforated hose is communicated with the perforated ring.

3. The access channel for single port laparoscopic surgery according to claim 2, further comprising an anti-blocking mechanism for blowing out the liquid blocked on the perforated hose, wherein the anti-blocking mechanism comprises a guide frame, a connecting cylinder, a second one-way valve, a second sliding frame, a first compression spring, a second connecting pipe and a third one-way valve, the guide frame is connected to the soft cover, the connecting cylinders are connected to the cylinders, the second one-way valves are mounted on the connecting cylinders, the second sliding frames are connected to the connecting cylinders in a sliding manner, the first compression springs are connected between the second sliding frames and the adjacent connecting cylinders, one sides of the second sliding frames, which are far away from each other, are in sealing contact with the adjacent connecting cylinders, one ends of the second sliding frames, which are close to each other, slide on the inner sides of the guide frame, the one ends of the connecting cylinders, which are far away from each other, are communicated with the second connecting pipes, and the third one-way valves are mounted on the second connecting pipes.

4. The access channel for single-port laparoscopic surgery according to claim 1, further comprising a limiting mechanism, wherein the limiting mechanism comprises a connecting block, a sliding rod, a limiting plate, a second compression spring, a third compression spring and a limiting block, a round hole is formed in the soft cover, the soft cover is connected with the connecting block, the connecting block is located in the round hole, the sliding rod is connected to the connecting block in a sliding mode, the limiting plate used for limiting the wind wheel is connected to the sliding rod, the limiting plate moves downwards to be in contact with the wind wheel, the second compression spring is connected between the sliding rod and the connecting block, two limiting holes are formed in the connecting block, two third compression springs are connected to the sliding rod, limiting blocks used for limiting the limiting plates are connected to one ends, away from each other, of the third compression springs are longitudinally aligned with the adjacent limiting holes, and the limiting blocks move downwards to be clamped in the adjacent limiting holes.

5. The access channel for single port laparoscopic surgery of claim 1, further comprising a fixing mechanism comprising a fixing block and a rubber block, wherein the mounting bracket is rotatably connected with two fixing blocks for fixing the connecting ring and the mounting bracket, the connecting ring is connected with two rubber blocks, and the fixing blocks are clamped on adjacent rubber blocks.

6. The access port for single port laparoscopic surgery of claim 1, further comprising a sealing ring coupled to the connecting ring for sealing a gap between the connecting ring and the mounting bracket, the sealing ring in sealing contact with the mounting bracket.

7. A single port laparoscopic access procedure according to claim 2, wherein the drive rod is offset from the center of the wind wheel.

8. The access channel for single port laparoscopic surgery according to claim 4, wherein sides of the stop blocks facing away from each other are curved.