Abdominal cavity operation device facilitating installation of conveying pipe

Abstract

The utility model relates to an abdominal cavity operation device facilitating installation of a conveying pipe, and belongs to the technical field of medical instruments. The device comprises a wound protection sleeve, the wound protection sleeve comprises a sleeve and a connecting ring connected to the sleeve, the connecting ring is provided with a connecting hole, the connecting hole is used for being connected with a gas conveying pipe, and the gas conveying pipe is used for conveying gas. The connecting ring is arranged on the wound protection sleeve, the connecting hole is formed in the connecting ring, the gas conveying pipe is convenient to install, and on one hand, the gas conveying pipe serves as a gas inlet pipe for rapidly inputting surgical gas at the beginning of a surgery and on the other hand serves as an exhaust pipe; cauterization smoke and other harmful gases escaping out of the wound protection sleeve during an operation are exhausted, and a filtering assembly is arranged to purify the cauterization smoke and other harmful gases, so that the influence on the sterile environment of an operating room and the body health of operating room personnel is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a laparoscopic surgery device which is convenient for installing a delivery tube. Background Art

[0002] Laparoscopic surgery is performed using a laparoscope and related instruments. The specific surgical process is as follows: Using a cold light source for illumination, the laparoscope lens (3-10 mm in diameter) is inserted into the abdominal cavity. Using digital camera technology, the images captured by the laparoscope lens are transmitted via optical fibers to a backend signal processing system and displayed in real time on a dedicated monitor. Medical staff then analyze and assess the patient's condition using images of the patient's organs from different angles displayed on the monitor screen, and perform the surgery using specialized laparoscopic instruments. Laparoscopic surgery often utilizes a 2-4-port procedure, one of which is made in the navel to avoid leaving a long, strip-like scar in the patient's abdominal cavity. After recovery, only one to three linear scars, 0.5-1 cm in diameter, remain in the abdominal cavity. This procedure is considered minimally invasive and painless. Multi-channel, single-port laparoscopic trocars are commonly used in minimally invasive laparoscopic surgery. These devices improve the traditional method of introducing multiple instruments through three or four ports, reducing trauma to the patient while leaving a scarless incision. They are highly popular with both physicians and patients. They primarily consist of a multi-port operating platform and a channel tube (incision protection sleeve) connected to the platform. The two channels are connected by a sealed structure.

[0003] Currently, the multi-channel single-port laparoscopic puncture devices on the market are only equipped with gas input tubes on the multi-operating platforms for inputting surgical gases. However, when medical staff use surgical instruments to perform operations inside the human body, burning smoke and other harmful gases will be generated, affecting the images captured by the laparoscope lens and the observation angle of the medical staff. Taking this issue into consideration, some companies have set up gas output tubes on the multi-operating platforms at the same time to discharge the burning smoke and other harmful gases in the incision protection cover. However, the effect on the harmful gases that escape to the outside of the incision protection cover is limited. This part of the harmful gases will remain in the patient's body, causing potential impact on the patient's health.

[0004] After searching, the Chinese invention patent: Single-port multi-channel laparoscopic surgical device (publication number: CN111839617A, publication date: 2020.08.25), the application includes a multi-channel surgical operating table and an incision protection cover, the multi-channel surgical operating table includes: a flexible body with an outlet, transparent or translucent, the outlet end of the flexible body is sealed with the inlet end of the incision protection cover, and the side wall of the flexible body is provided with a taking port and an air inlet / outlet; multiple import channels, the multiple import channels are all arranged on the flexible body and connected to the interior of the flexible body, and the multiple import channels are arranged at intervals; a taking bag, which is housed in the taking port, and its inlet end is sealed and connected to the taking port; a locking cover, the locking cover is detachably connected to the taking port, and is used to close the taking port. This solution provides an air inlet / outlet for inputting surgical gas and discharging the burning smoke and other harmful gases generated in the incision protective cover during the operation. However, it does not consider how to discharge the burning smoke and other harmful gases that escape to the outside of the incision protective cover. In addition, the burning smoke and other harmful gases discharged through the air inlet / outlet are directly discharged into the air outside the operating room, affecting the sterile environment of the operating room and the health of medical staff. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The utility model aims to solve the problem of where to arrange the exhaust pipe in the existing laparoscopic surgical device so as to better discharge the burning smoke and other harmful gases that escape to the outside of the incision protection cover.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0009] The utility model provides a laparoscopic surgical device that is convenient for installing a delivery tube, comprising a wound protection sleeve, wherein the wound protection sleeve comprises a sleeve and a connecting ring connected to the sleeve, wherein the connecting ring is provided with a connecting hole, wherein the connecting hole is used for connecting a gas delivery tube, and the gas delivery tube is used for delivering gas.

[0010] Preferably, the ring width of the connecting ring is H, the aperture of the connecting hole is adapted to the ring width of the connecting ring, and the aperture of the connecting hole is 0.2H to 0.9H.

[0011] Preferably, the ring width of the connecting ring is H, the aperture of the connecting hole is adapted to the ring width of the connecting ring, and the aperture of the connecting hole is 3 mm to 8 mm.

[0012] Preferably, the diameter of the connecting hole is 5 mm.

[0013] Preferably, the connecting ring is elliptical.

[0014] Preferably, the ellipse of the connecting ring is an asymmetric ellipse.

[0015] Preferably, the short axis length of the connecting ring is a, the long axis length is b, and the long axis length b>1.2a.

[0016] Preferably, a notch is provided on the connecting ring.

[0017] Preferably, the arc height of the notch is h, specifically 0.2H≤h≤0.5H.

[0018] Preferably, the notch is provided at an end point of the minor axis or the major axis of the connecting ring.

[0019] Preferably, the connecting ring is arranged at the bottom of the sleeve.

[0020] Preferably, the size of the connecting ring is adapted to the size of the sleeve.

[0021] Preferably, the connecting ring is connected to the removal ring via a connecting line.

[0022] Preferably, the gas delivery tube includes a sleeve and a spring arranged in the sleeve.

[0023] Preferably, the length of the spring is more than 85% of the length of the sleeve and shorter than the length of the sleeve, and the diameter of the spring is adapted to the inner diameter of the sleeve.

[0024] Preferably, the winding ratio of the spring is 4-9.

[0025] Preferably, the winding ratio of the spring is 6.

[0026] Preferably, the outer diameter of the sleeve is matched with the aperture of the connecting hole.

[0027] Preferably, the inner diameter of the sleeve is 1.5 mm to 4.5 mm.

[0028] Preferably, the inner diameter of the sleeve is 3.6 mm.

[0029] Preferably, the sleeve passes through the connecting hole and is connected to the connecting ring, and the length of the portion of the sleeve extending downward through the connecting hole is 0.5 cm to 2.0 cm.

[0030] Preferably, the gas delivery pipe is further provided with a switch control valve three and a filter assembly.

[0031] Preferably, the wound protection sleeve is connected to an insert top plate, and the insert top plate comprises a base and an insert channel, a gas input pipe and a gas output pipe arranged on the base.

[0032] Preferably, the diameter of the base gradually decreases in a direction approaching the wound protection sleeve, and an opening is formed at the lower end to be connected to the wound protection sleeve.

[0033] Preferably, the sleeve is connected with a top connecting ring and a fixing ring.

[0034] Preferably, the wound protection sleeve is connected to the base via the top connecting ring.

[0035] Preferably, an insertion port is provided on the insertion channel.

[0036] Preferably, the gas output pipe is provided with a second switch control valve and a filter assembly.

[0037] 3. Beneficial effects

[0038] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0039] The present invention provides a laparoscopic surgical device that facilitates installation of a delivery tube, comprising a wound protection sleeve, the wound protection sleeve comprising a sleeve and a connecting ring connected to the sleeve, the connecting ring being provided with a connecting hole for connecting a gas delivery tube, the gas delivery tube being used to deliver gas. The present application facilitates installation of the gas delivery tube by providing a connecting ring within the wound protection sleeve and providing a connecting hole on the connecting ring. On the one hand, the gas delivery tube serves as an air inlet pipe for quickly inputting surgical gas at the start of surgery, and on the other hand, serves as an exhaust pipe for exhausting burning smoke and other harmful gases that escape outside the wound protection sleeve during surgery. A filter assembly is provided to purify the burning smoke and other harmful gases, thereby reducing the impact on the sterile environment of the operating room and the health of operating room personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of a laparoscopic surgical device that is convenient for installing a delivery tube according to the present invention;

[0041] Figure 2 This is a schematic structural diagram of the insertion top plate of the utility model;

[0042] Figure 3 This is a schematic structural diagram of the wound protection cover of the present invention;

[0043] Figure 4 This is a detailed view of the connecting ring of the present invention.

[0044] Explanation of the numbers in the schematic diagram:

[0045] 100, insert top plate; 110, base; 120, insert channel; 121, insert port; 130, gas inlet pipe; 131, switch control valve 1; 140, gas outlet pipe; 141, switch control valve 2; 142, filter assembly;

[0046] 200, wound protection sleeve; 210, sleeve; 220, gas delivery tube; 221, sleeve; 222, spring; 223, switch control valve three; 230, connecting ring; 231, connecting hole; 232, notch; 240, connecting line; 250, removal ring; 260, fixing ring; 270, top connecting ring. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0048] It should be noted that the terms "first," "second," and the like in the specification and claims of the present application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate for the embodiments of the present application described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or apparatus.

[0049] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0050] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0051] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0052] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] Example 1

[0054] Refer to the attached Figure 1-4 In this embodiment, a laparoscopic surgical device that is convenient for installing a delivery tube includes an insertion top plate 100 and a wound protection cover 200. The insertion top plate 100 and the wound protection cover 200 are connected together. The insertion top plate 100 is placed on the abdominal wound of the human body, and the wound protection cover 200 is passed through the abdominal wound and makes contact with the abdominal wound, so that the insertion top plate 100 and the wound protection cover 200 cooperate to form a channel that is convenient for surgical instruments to enter the human body. On the one hand, it is convenient for medical personnel to send surgical instruments into the human body through the wound protection cover 200 for surgery, and on the other hand, it prevents the abdominal wound from being infected.

[0055] The insertion top plate 100 includes a base 110, which is made of an elastic material, such as silicone. The diameter of the base 110 gradually decreases along the direction approaching the wound protection cover 200, and an opening is formed at the lower end to connect with the wound protection cover 200. The top of the base 110 is provided with an insertion channel 120, a gas input pipe 130 and a gas output pipe 140. The base 110 is placed at a position on the human body where surgery is required. On the one hand, the surgical site is separated from the surrounding environment to reduce the infection of the surgical site by the surrounding environment. On the other hand, medical staff insert surgical instruments from the base 110 to perform surgical operations; a plurality of independent insertion channels 120 are provided on the base 110, and the insertion channel 120 is a cylindrical channel protruding upward from the base 110, and an insertion port 121 is formed at the top of the cylindrical channel. Different surgical instruments are inserted into the human body from the insertion ports 121 of the multiple insertion channels 120 Surgery is performed to reduce mutual interference between surgical instruments; a gas input pipe 130 is provided on the top of the base 110 for inputting surgical gas into the human body to prevent internal infection of the human body, and a switch control valve 131 is provided on the gas input pipe 130 for controlling the conduction of the gas input pipe 130; the gas output pipe 140 is provided on the top of the base 110 for discharging the burning smoke and other harmful gases generated in the body during laparoscopic surgery to the outside of the body, and a switch control valve 2 141 and a filter component 142 are provided on the gas output pipe 140, and the switch control valve 2 141 is used to control the conduction of the gas output pipe 140, and the filter component 142 is used to purify and discharge the burning smoke and other harmful gases generated in the wound protection cover 200 during laparoscopic surgery to the outside of the body, so as to prevent the sterile environment of the operating room and the health of medical staff from being affected.

[0056] The wound protection sleeve 200 comprises a sleeve 210 and a top connecting ring 270, a fixing ring 260 and a connecting ring 230 connected to the upper, middle and lower positions of the sleeve 210. The wound protection sleeve 200 is inserted into the surgical site from the incision site of the human body. On the one hand, the wound protection sleeve 200 is used to input the surgical gas entering from the gas input pipe 130 and output the burning smoke and other harmful gases generated during the operation to the gas output pipe 140. On the other hand, the surgical instruments entering from the insertion port 121 enter the human body through the wound protection sleeve 200 to perform the operation; the top of the sleeve 210 is provided with a top connecting ring 270, and the top connecting ring 270 is used to connect the sleeve 210 to the surgical site. 0 is connected to the lower end of the base 110, so that the insert top plate 100 and the wound protection cover 200 are connected. Specifically, the top connecting ring 270 is placed in the lower end opening of the base 110, and the sleeve 210 is pulled to drive the outer side of the top connecting ring 270 to fit together with the inner side of the lower end opening of the base 110, so that the insert top plate 100 and the wound protection cover 200 are connected together; an annular fixing ring 260 is provided in the middle position of the sleeve 210. When the interior of the sleeve 210 is filled with the input surgical gas, the fixing ring 260 is used to maintain the shape of the sleeve 210 to prevent the sleeve 210 from being filled with surgical gas and causing deformation.

[0057] The connecting ring 230 is arranged at the bottom position of the sleeve 210, and the connecting ring 230 is adapted to the sleeve 210 so that the connecting ring 230 and the sleeve 210 are fitted together; the connecting ring 230 is elliptical, and this embodiment is preferably an asymmetric ellipse. The ellipse is formed by a trajectory in which the sum of the distances from a moving point to two fixed points is equal to a constant. Since it is not completely symmetrical, relative to the circle set by traditional surgical devices, the ellipse is prone to deformation or bending when subjected to force. The formation principle and physical properties of the ellipse make it easier to change shape than the circle under force, and the asymmetric ellipse is less completely symmetrical than the symmetrical ellipse, so it is more prone to deformation and bending. The connecting ring 230 has a width H. When the widths of the connecting rings 230 are uniform, H is the width of the connecting ring 230 at any location. When the widths of the connecting rings 230 are inconsistent, H is the width of the connecting ring 230 at the location of the connecting hole 231. The minor axis is a, the major axis is b, the endpoints of the minor axis are F1 and F2, and the endpoints of the major axis are F3 and F4. In this embodiment, the major axis of the connecting ring 230 preferably has a length b greater than 1. 2a, when b>1.2a, the major axis length of the connecting ring 230 is much different from the minor axis length, the ellipse is more obvious, and the connecting ring 230 is easier to fold and bend; when a<b<1.2a, the major axis length and the minor axis length of the connecting ring 230 are not much different, the ellipse is close to a circle, and the connecting ring 230 is not easy to bend. The asymmetric elliptical design has a larger contact area than a circle of the same size, and when the connecting ring 230 contacts the surgical site, it can make the connecting ring 230 fit the surgical site more closely.

[0058] The connecting ring 230 is provided with a notch 232, and the arc height of the notch 232 is h, specifically 0.2H≤h≤0.5H. When h<0.2H, the opening of the notch 232 is too small, and the connecting ring 230 is not easy to fold. When h>0.5H, the position where the notch 232 is located is easy to break, causing damage to the connecting ring 230. The position of the notch 232 can be set at any position of the connecting ring 230. In this embodiment, it is preferably set at the end point of the short axis or long axis of the connecting ring 230. The connecting ring 230 is easier to fold along the length direction of the short axis or the length direction of the long axis. The notch 232 is set at the end point of the short axis or long axis of the connecting ring 230. The two promote each other, making the bending effect of the connecting ring 230 more obvious.

[0059] The connecting ring 230 is provided with a connecting hole 231 , the aperture size of the connecting hole 231 is adapted to the ring width size of the connecting ring 230 , the aperture of the connecting hole 231 is 3mm to 8mm, preferably 5mm in this embodiment, and the connecting hole 231 is used to connect the gas delivery pipe 220 .

[0060] The connecting ring 230 is connected to the removal ring 250 via a connecting line 240 . The removal ring 250 and the connecting line 240 are used to quickly remove the portion of the wound protection sleeve 200 that has entered the human body from the human incision at the end of the operation.

[0061] The gas delivery tube 220 includes a sleeve 221 and a spring 222 arranged in the sleeve 221. The outer diameter of the sleeve 221 is adapted to the aperture size of the connecting hole 231, so that the sleeve 221 can better fit through the connecting hole 231. The inner diameter of the sleeve 221 is 1.5mm to 4.5mm, preferably 3.6mm in this embodiment. The sleeve 221 passes through the connecting hole 231 and is connected to the connecting ring 230. The length of the portion of the sleeve 221 that passes through the connecting hole 231 and extends downward is 0.5cm to 2.0cm, preferably 1.0cm. By adjusting the length of the portion of the sleeve 221 that passes through the connecting hole 231, the gas delivery tube 220 can better discharge the burning smoke and other harmful gases generated during surgery. On the one hand, the sleeve 221 can be used for air intake, for inputting surgical gas into the human body to prevent internal infection of the human body; on the other hand, it can be used for exhaust, for quickly discharging the burning smoke and other harmful gases overflowing from the sleeve 210 into the abdomen, thereby reducing secondary damage to the patient.

[0062] The length of the spring 222 is more than 85% of the length of the sleeve 221 and is shorter than the length of the sleeve 221. The diameter of the spring 222 is adapted to the inner diameter of the sleeve 221, so that the spring 222 can fit through the sleeve 221. The spring 222 can be adjusted and deformed according to the needs of the surgical environment. After being inserted into the human body, it can be restored to its original shape outside the body, so that the gas delivery tube 220 can play a better role. The winding ratio of the spring 222 is 4 to 9. When the winding ratio is less than 4, the spring 222 is bent many times, and the service life of the spring 222 is short, and the replacement is frequent. When the winding ratio is greater than 9, the rigidity of the spring 222 is large, and it is not easy to return to the original position after bending. In this embodiment, the winding ratio of the spring 222 is preferably 6. When the winding ratio of the spring 222 is 6 The spring 222 has relatively good life and strength, and can more easily return to its original position after bending. The spring 222 can slow down the flow rate of the gas in the sleeve 221. When the gas delivery pipe 220 is used as an exhaust pipe to discharge burning smoke and other harmful gases, the gas flow rate in the sleeve 221 can be slowed down, the burning smoke and other harmful gases can be fully purified, and impurities can be avoided during the gas input process; the gas delivery pipe 220 is also provided with a switch control valve three 223 and a filter component 142. The switch control valve three 223 is used to control the conduction of the gas delivery pipe 220, and the filter component 142 is used to purify the burning smoke and other harmful gases output from the sleeve 221 to prevent the sterile environment of the operating room and the health of medical staff from being affected. During the operation, the surgical instruments generate burning smoke and other harmful gases at the wound site of the human abdominal cavity. The switch control valve 3 223 is opened, and the external air pump is connected to the gas delivery tube 220 through a pipeline to extract the burning smoke and other harmful gases. When the gas flows through the sleeve 221, the spring 222 slows down the gas flow rate. The burning smoke and other harmful gases pass through the filter component 142 of the gas delivery tube 220. The filter component 142 can purify the burning smoke and other harmful gases and discharge them out of the body.

[0063] Before the operation, the gas delivery tube 220 of the wound protection sleeve 200 is bent and inserted into the human body together with the sleeve 210. After entering the human body, the gas delivery tube 220 returns to its external shape. The surgical gas is injected from the gas input tube 130 and the gas delivery tube 220 inserted into the top plate 100, so that the inside of the sleeve 210 and the abdomen are quickly filled with surgical gas. During the operation, different surgical instruments are inserted into the multiple insertion channels 120 inserted into the top plate 100 outside the body to perform the operation. The burning smoke and Other harmful gases are purified from the filter assembly 142 of the gas output tube 140 to remove the burning smoke and other harmful gases in the sleeve 210 and discharged. The burning smoke and other harmful gases overflowing from the sleeve 210 are purified and discharged from the filter assembly 142 in the gas delivery tube 220. At the end of the operation, the surgical instrument is withdrawn from the insertion channel 120, and the removal ring 250 is pulled out from the body at the same time. The removal ring 250 quickly removes the part of the wound protection sleeve 200 that enters the human body from the incision through the connecting line 240.

[0064] Example 2

[0065] The basic structure of this embodiment is the same as that of embodiment 1, except that:

[0066] The connecting ring 230 is provided with a connecting hole 231, and the aperture of the connecting hole 231 is adapted to the ring width of the connecting ring 230. The aperture size of the connecting hole 231 is 0.2H to 0.9H. When the aperture size of the connecting hole 231 is less than 0.2H, the aperture of the connecting hole 231 is too small, and the inner diameter of the gas delivery tube 220 used therewith is too small, and the gas delivery efficiency is slow, which cannot meet the surgical requirements. When the aperture size of the connecting hole 231 is greater than 0.9H, the connecting ring 230 is easy to break. In this embodiment, the aperture size of the connecting hole 231 is preferably 5mm.

[0067] The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which all fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A laparoscopic surgical device that facilitates installation of a delivery tube, characterized in that: The wound protection sleeve (200) comprises a sleeve (210) and a connecting ring (230) connected to the sleeve (210), wherein the connecting ring (230) is provided with a connecting hole (231), and the connecting hole (231) is used for connecting a gas delivery tube (220), and the gas delivery tube (220) is used for delivering gas.

2. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The ring width of the connecting ring (230) is H, and the aperture of the connecting hole (231) is adapted to the ring width of the connecting ring (230). The aperture of the connecting hole (231) is 0.2H to 0.9H.

3. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The ring width of the connecting ring (230) is H, and the aperture of the connecting hole (231) is adapted to the ring width of the connecting ring (230). The aperture of the connecting hole (231) is 3 mm to 8 mm.

4. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 2 or 3, characterized in that: The connection hole (231) has a diameter of 5 mm.

5. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The connecting ring (230) is elliptical.

6. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 5, characterized in that: The elliptical shape of the connecting ring (230) is an asymmetric elliptical shape.

7. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 6, characterized in that: The connecting ring (230) has a short axis length a and a long axis length b, and the long axis length b>1.2a.

8. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 7, characterized in that: The connecting ring (230) is provided with a notch (232).

9. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 8, characterized in that: The arc height of the notch (232) is h, specifically 0.2H≤h≤0.5H.

10. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 8, characterized in that: The notch (232) is arranged at an end point of the short axis or the long axis of the connecting ring (230).

11. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The connecting ring (230) is arranged at the bottom of the sleeve (210).

12. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The size of the connecting ring (230) is adapted to the size of the sleeve (210).

13. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The connecting ring (230) is connected to the removal ring (250) via a connecting line (240).

14. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The gas delivery tube (220) comprises a sleeve (221) and a spring (222) disposed within the sleeve (221).

15. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 14, characterized in that: The length of the spring (222) is more than 85% of the length of the sleeve (221) and is shorter than the length of the sleeve (221), and the diameter of the spring (222) is compatible with the inner diameter of the sleeve (221).

16. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 14, characterized in that: The winding ratio of the spring (222) is 4 to 9.

17. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 16, characterized in that: The winding ratio of the spring (222) is 6.

18. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 14, characterized in that: The outer diameter of the sleeve (221) is compatible with the aperture of the connecting hole (231).

19. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 18, characterized in that: The inner diameter of the sleeve (221) is 1.5 mm to 4.5 mm.

20. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 19, characterized in that: The inner diameter of the sleeve (221) is 3.6 mm.

21. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 14, characterized in that: The sleeve (221) passes through the connecting hole (231) and is connected to the connecting ring (230). The length of the portion of the sleeve (221) extending downward through the connecting hole (231) is 0.5 cm to 2.0 cm.

22. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 14, characterized in that: The gas delivery pipe (220) is further provided with a third switch control valve (223) and a filter assembly (142).

23. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 1, characterized in that: The wound protection sleeve (200) is connected to an insert top plate (100), and the insert top plate (100) comprises a base (110), an insert channel (120) provided on the base (110), a gas input pipe (130), and a gas output pipe (140).

24. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 23, characterized in that: The diameter of the base (110) gradually decreases in a direction approaching the wound protection sleeve (200), and an opening is formed at the lower end to be connected to the wound protection sleeve (200).

25. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 24, characterized in that: The sleeve (210) is connected to a top connecting ring (270) and a fixing ring (260).

26. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 25, characterized in that: The wound protection sleeve (200) is connected to the base (110) via the top connecting ring (270).

27. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 23, characterized in that: The insertion channel (120) is provided with an insertion opening (121).

28. The laparoscopic surgical device for facilitating installation of a delivery tube according to claim 23, characterized in that: The gas output pipe (140) is provided with a second switch control valve (141) and a filter assembly (142).

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