Tumor-free isolation device for laparoscopic surgery

Abstract

The utility model relates to a tumor-free isolation device for laparoscopic surgery, and belongs to the technical field of medical instruments. The tumor-free isolation device for the laparoscopic surgery comprises a cannula assembly and a tumor isolation assembly, wherein the tumor isolation assembly is arranged in the cannula assembly in a penetrating manner and extends out of the front end of the cannula assembly; the tumor isolation assembly comprises a connecting pipe, a head rod, a tumor isolation bag and a traction rod, the head rod is hinged to the front end of the connecting pipe, the tumor isolation bag is arranged on the head rod, the traction rod slidably penetrates through the connecting pipe, and the front end of the traction rod is hinged to the head rod; when the traction rod moves back and forth, the head rod can be driven to swing up and down, and the included angle between the opening of the tumor isolation bag and the axis of the connecting pipe is changed. According to the tumor-free isolation device for the laparoscopic surgery, the orientation of the opening of the tumor isolation bag can be automatically changed, so that the opening of the tumor isolation bag is aligned with a focus part, the bearing area is larger, and waste tissue or tissue fluid is not prone to escaping.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a tumor-free isolation device for laparoscopic surgery. Background Technology

[0002] With advancements in medical technology, minimally invasive endoscopic surgeries such as laparoscopic surgery have gradually become the trend and mainstream of medical procedures. Laparoscopic surgery is characterized by minimal trauma and rapid postoperative healing. However, during ovarian surgery, when tumors or cysts are removed laparoscopically, surgical materials or tissue waste may flow onto other healthy tissues, potentially leading to cancer metastasis. Therefore, existing technologies include tumor septa that can collect surgical materials or tissue waste, preventing contact between diseased tissue and healthy tissue.

[0003] Please refer to the utility model patent with application number CN202323518827.5 and invention title "A controllable digestive endoscope mesh septum bag". The septum bag usually includes an outer tube, an insertion rod and a bag body. The bag body is located at the front end of the insertion rod. The opening of the bag body is supported by a ring-shaped memory metal wire. By pulling the insertion rod, the bag body can be put in or taken out, so that the bag body can reach the designated position.

[0004] However, when removing lesions from the ovary, the opening is usually located obliquely above the lesion, causing the septum to tilt as it enters the body. The tilted opening of the septum reduces the receiving surface, which may cause the surgical excision or tissue waste to escape. If cancer has already occurred at the site of the excised tissue, it may lead to cancer metastasis. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a laparoscopic surgery tumor-free isolation device that can autonomously change the opening orientation of the tumor septum, so that the opening of the tumor septum is aligned with the lesion site, the receiving area is larger, and waste tissue or tissue fluid is less likely to escape.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a laparoscopic surgery tumor-free isolation device, including a cannulation assembly and a tumor septum assembly. The tumor septum assembly is inserted into the cannulation assembly and extends from the front end of the cannulation assembly. The tumor septum assembly includes a connecting tube, a head rod, a tumor septum bag, and a traction rod. The head rod is hinged to the front end of the connecting tube, the tumor septum bag is disposed on the head rod, and the traction rod is slidably inserted into the connecting tube and its front end is hinged to the head rod. When the traction rod moves back and forth, it can drive the head rod to swing up and down and change the angle between the opening of the tumor septum bag and the axis of the connecting tube.

[0008] As an optional feature, the diaphragm assembly further includes a transition piece, the middle part of the head rod is hinged to the connecting pipe, and the traction rod and one end of the head rod are indirectly hinged through the transition piece.

[0009] As an optional solution, the hinge axis between the head rod and the connecting tube is the first hinge axis, the hinge axis between the head rod and the transition piece is the second hinge axis, and the hinge axis between the transition piece and the traction rod is the third hinge axis, with the first hinge axis, the second hinge axis, and the third hinge axis arranged in a triangular pattern.

[0010] As an optional solution, the diaphragm assembly further includes a scissor-type control handle, which includes a first wrench and a second wrench hinged to each other. The first wrench is fixedly connected to the rear end of the connecting tube, and the second wrench is connected to the rear end of the pull rod and is used to pull the pull rod back and forth.

[0011] As an optional solution, the second wrench is provided with a T-shaped through groove, the T-shaped through groove and the pull rod are arranged at an angle, and the rear end of the pull rod is provided with a ball head, which is slidably embedded in the T-shaped through groove.

[0012] As an optional solution, the diaphragm assembly further includes a locking assembly, which includes a locking ball and a locking spring. One side of the pull rod is provided with a wavy locking surface, and the connecting pipe is provided with a locking hole. The locking ball and the locking spring are disposed in the locking hole, and the locking spring presses the locking ball against the locking surface.

[0013] As an optional solution, the locking assembly further includes a locking cylinder, one end of which is closed and the other end is open. The locking cylinder is threaded into the locking hole, and the locking ball and the locking spring are both located inside the locking cylinder.

[0014] As an optional solution, the diaphragm bag includes a retrieval section and a shielding section, the shielding section being located at the bottom end of the retrieval section, and the opening of the diaphragm bag being supported by an annular shape memory metal wire or the diaphragm bag adopting an inflatable structure.

[0015] As an optional solution, the cannulation assembly includes an insertion head and an insertion tube, with the insertion head located at the rear end of the insertion tube. The septum assembly also includes a locking head, which is located at the rear end of the connecting tube, and the insertion head and the locking head are respectively provided with a locking buckle.

[0016] As an optional solution, the bottom of the diaphragm bag is provided with a suction port, the suction port is connected to a suction tube, and the suction tube is inserted into the connecting tube or the pulling rod.

[0017] The beneficial effects of this utility model are:

[0018] The laparoscopic surgery tumor-free isolation device provided by this utility model has an intubation assembly used to assist the insertion of the tumor-septum assembly into the patient's body. The tumor-septum bag is located on the head rod, and the traction rod can move back and forth in the intubation assembly, thereby driving the head rod to swing up and down, which in turn changes the orientation of the opening of the tumor-septum bag, so that the opening of the tumor-septum bag is aligned with the lesion site, the receiving area is larger, and waste tissue or tissue fluid is not easy to escape. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of this utility model will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main idea of ​​this utility model.

[0020] Figure 1 A schematic diagram of the structure of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the cannulation assembly of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the septum assembly of the laparoscopic surgery septum isolation device provided in this embodiment of the utility model;

[0023] Figure 4 A partial sectional view of the front end of the septum assembly of the laparoscopic surgery septum isolation device provided in an embodiment of this utility model;

[0024] Figure 5 A partial structural diagram of the rear end of the tumor-septal component of the laparoscopic surgery tumor-free isolation device provided in an embodiment of this utility model;

[0025] Figure 6 A partial sectional view of the rear end of the tumor septum assembly of the laparoscopic surgery tumor-free isolation device provided in an embodiment of this utility model;

[0026] Figure 7 for Figure 6 A magnified view of part A;

[0027] Figure 8 A schematic diagram of another state of the tumor septum component of the laparoscopic surgery tumor-free isolation device provided in an embodiment of this utility model;

[0028] Figure 9 Reference diagram of the state of the laparoscopic surgery tumor-free isolation device before adjustment, provided for an embodiment of this utility model;

[0029] Figure 10 A reference diagram showing the adjusted state of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model (with suction tube);

[0030] Figure 11 Reference for the usage status of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model Figure 1 ;

[0031] Figure 12 Reference for the usage status of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model Figure 2 ;

[0032] Figure 13 Reference for the usage status of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model Figure 3 ;

[0033] Figure 14 Reference for the usage status of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model Figure 4 ;

[0034] Figure 15 Reference for the usage status of the laparoscopic surgery tumor-free isolation device provided in this embodiment of the utility model Figure 5 .

[0035] Icons: 10-Laparoscopic surgery tumor-free isolation device; 11-Intubation assembly; 12-Tumor septum assembly; 110-Insert head; 111-Insert tube; 120-Connecting tube; 121-Head rod; 122-Tumor septum bag; 123-Tethering rod; 124-Transition piece; 125-Suction tube; 126-Retrieval part; 127-Shielding part; 130-First hinge shaft; 131-Second hinge shaft; 132-Third hinge shaft; 140-Control handle; 141-First wrench; 142-Second wrench; 143-T-shaped through groove; 144-Spherical head; 150-Locking assembly; 151-Locking cylinder; 152-Locking ball; 153-Locking spring; 154-Locking surface. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] Please refer to Figure 1 As shown, an embodiment of this utility model provides a laparoscopic surgical tumor-free isolation device 10, which can be used in laparoscopic surgery. This device 10 is used during laparoscopic surgery, specifically in the removal of uterine fibroids using plasma technology, to isolate the ovary and intestines, preventing surgical excisions or tissue waste from flowing into the intestines and thus avoiding cancer cell metastasis. Of course, this laparoscopic surgical tumor-free isolation device 10 can also be used in other laparoscopic surgeries, such as cholecystectomy, to prevent diseased tissue from contacting healthy tissue.

[0040] First, it should be noted that the terms "front" and "back" mentioned in this embodiment only indicate relative positional relationships, not absolute directions. For example, in this embodiment, the part closer to the lesion is "front" and the part farther from the lesion is "back". Of course, in other embodiments, relative directions can also be defined in other ways, such as the part closer to the lesion being "proximal" and the part farther from the lesion being "distal".

[0041] In this regard, please combine Figure 2 , Figure 3 As shown, the laparoscopic surgery tumor-free isolation device 10 mainly consists of a cannulation assembly 11 and a tumor-separating assembly 12. The tumor-separating assembly 12 is inserted into the cannulation assembly 11, and the front end of the tumor-separating assembly 12 extends out from the front end of the cannulation assembly 11.

[0042] The intubation assembly 11 is mainly used to be inserted into the human body through the opening in the abdomen to form a channel so that the diaphragm assembly 12 can enter and exit smoothly.

[0043] The structure of the cannulation assembly 11 is not limited. Generally, the cannulation assembly 11 has an insertion tube 111, which is tubular and can be round, square, irregularly shaped, etc. It is hollow inside and open at both ends. The length of the insertion tube 111 is not limited and can be set as needed.

[0044] In some embodiments, a handle may also be provided at the rear end of the insertion tube 111. The handle is mainly used by the doctor to hold the tube and limit the insertion depth of the insertion tube 111. The shape and structure of the handle are not limited; for example, the handle can be figure-eight shaped, hemispherical, rectangular, etc. Of course, it is also possible not to provide a handle.

[0045] The septum assembly 12 can slide back and forth within the cannulation assembly 11, so that the front end of the septum assembly 12 can reach a designated position through the insertion tube 111 and exit the human body through the insertion tube 111.

[0046] For specific details, please refer to... Figure 4 As shown, the diaphragm assembly 12 includes a connecting pipe 120, a head rod 121, a diaphragm bag 122, and a pulling rod 123. Each component will be discussed in detail below.

[0047] The connecting tube 120 is tubular, such as a round tube, square tube, or irregularly shaped tube, and is hollow inside. The length of the connecting tube 120 is unlimited and can be set as needed. Generally, the length of the connecting tube 120 needs to be greater than the length of the insertion tube assembly 11 so that the rear end of the connecting tube 120 extends from the rear end of the insertion tube assembly 11 and the front end of the connecting tube 120 extends from the front end of the insertion tube assembly 11. The connecting tube 120 is inserted inside the insertion tube assembly 11. The size of the connecting tube 120 can be slightly smaller than the size of the insertion tube 111 so that the connecting tube 120 can slide back and forth within the insertion tube assembly 11.

[0048] The shape of the head rod 121 is not limited; it can be tubular, block-shaped, rod-shaped, irregular, etc., and its length can be long or short. The head rod 121 is hinged to the front end of the connecting pipe 120, and the hinge position of the head rod 121 is not limited; it can be in the middle, at the end, etc. The hinge axis between the head rod 121 and the connecting pipe 120 can be defined as the first hinge axis 130. The first hinge axis 130 can extend radially along the connecting pipe 120. Of course, it is also possible for the first hinge axis 130 to be set at an angle to the circumference of the connecting pipe 120, and the size of the angle is not limited, such as 80°, 85°, etc.

[0049] The head rod 121 can swing around the first hinge axis 130, thereby changing the angle between the head rod 121 and the connecting tube 120. The maximum swing amplitude of the head rod 121 is unlimited, for example, 30°, 45°, 60°, 80°, 90°, etc. Generally speaking, the larger the maximum swing amplitude of the head rod 121, the larger the orientation adjustment range of the diaphragm bag 122.

[0050] The septum 122 is mounted on the head rod 121. The shape of the septum 122 is not limited; it can be bowl-shaped, cylindrical, etc. The septum 122 has an opening, which can both isolate the lesion site from healthy tissue and collect surgical excisions or tissue waste. The septum 122 can be large or small, and the largest can completely cover the projection of the entire ovary on the horizontal plane.

[0051] After the septum bag 122 enters the human body, it needs to expand to receive surgical excisions or tissue waste. Therefore, the septum bag 122 needs to be foldable and have a certain strength after unfolding. Thus, the opening of the septum bag 122 is supported by a ring-shaped shape memory metal wire, or the septum bag 122 adopts an inflatable structure. Of course, the septum bag 122 can also be made of flexible plastic.

[0052] Furthermore, the structure of the divider bag 122 can also adopt the following scheme: the divider bag 122 includes a taking-up portion 126 and a blocking portion 127. The taking-up portion 126, when unfolded, has a bowl-shaped structure with its opening facing upwards. The blocking portion 127 is located at the bottom end of the taking-up portion 126. When unfolded, the blocking portion 127 can be plate-shaped or a bowl-shaped structure with its opening facing downwards. In this embodiment, "the divider bag 122 has an opening" refers to the opening of the taking-up portion 126. In other embodiments, the divider bag 122 may only include the taking-up portion 126, without including the blocking portion 127.

[0053] The shape memory wire is capable of elastic deformation. When passing through the cannula assembly 11, it can deform and contract. After entering the human body, it can expand under the influence of temperature or other factors, thereby opening the opening of the diaphragm bag 122, that is, unfolding the retrieval part 126 and the shielding part 127. In other embodiments, other parts of the diaphragm bag 122 can also be supported by shape memory wire.

[0054] If the diaphragm bag 122 adopts an inflatable structure, it is made of at least two thin films. Partially, the two films can be pressed together, forming an airflow channel between them. Airflow can pass through this channel and connect to an inflation tube, which can be inserted into a connecting tube 120 or a pulling rod 123. An inflation device is connected to the rear end of the inflation tube. When the diaphragm bag 122 is not inflated, it can be folded arbitrarily or crumpled into a ball to facilitate passage through the insertion tube assembly 11. When the diaphragm bag 122 is inflated, gas can enter between the two films, causing the bag to expand. The retrieval part 126 becomes bowl-shaped or cylindrical, and the blocking part 127 unfolds into a flat or inverted bowl shape. If the diaphragm bag 122 is entirely supported by shape memory metal wires, and a thin film covers the shape memory metal wire structure, the shape memory metal wires can be connected to a heating device. After the diaphragm bag 122 is placed in a designated position, it is heated by the heating device, causing the bag to expand.

[0055] The pull rod 123 passes through the connecting pipe 120 and can slide back and forth within the connecting pipe 120. The length of the pull rod 123 is not limited; it can be longer or shorter than the connecting pipe 120. In this embodiment, the rear end of the pull rod 123 extends from the rear end of the connecting pipe 120. The shape of the pull rod 123 is not limited; it can be tubular, such as a round tube, square tube, or irregularly shaped tube, or rod-shaped, such as a round rod or square rod.

[0056] The front end of the traction rod 123 is hinged to the head rod 121. The two can be directly hinged, meaning the traction rod 123 and the head rod 121 are hinged at a certain point, or indirectly hinged, meaning the traction rod 123 and the head rod 121 are respectively hinged to other components. In this embodiment, the traction rod 123 and the head rod 121 are indirectly hinged. Specifically, the diaphragm assembly 12 also includes a transition member 124. The style or structure of the transition member 124 is not limited; it can be tubular, rod-shaped, sheet-shaped, etc. The traction rod 123 and the head rod 121 are indirectly hinged through the transition member 124.

[0057] The head rod 121 is hinged to the connecting pipe 120 at its middle part, and one end of the head rod 121 is hinged to the transition member 124. The hinge axis between the head rod 121 and the transition member 124 is defined as the second hinge axis 131, and the hinge axis between the transition member 124 and the pull rod 123 is defined as the third hinge axis 132. The first hinge axis 130, the second hinge axis 131, and the third hinge axis 132 are parallel to each other and are arranged in a triangular pattern. The first hinge axis 130 and the third hinge axis 132 can be distributed along the axial direction of the connecting pipe 120; however, they can also be distributed outside the axial direction of the connecting pipe 120.

[0058] For ease of description, the area between the first hinge axis 130 and the second hinge axis 131 is defined as the first side, the area between the second hinge axis 131 and the third hinge axis 132 is defined as the second side, and the area between the first hinge axis 130 and the third hinge axis 132 is defined as the third side. The lengths of the first side and the second side remain constant, while the length of the third side can vary.

[0059] The pull rod 123 can only slide back and forth within the connecting tube 120. The head rod 121 can swing around the first hinge axis 130. When the pull rod 123 moves back and forth, it can change the position of the third hinge axis 132, that is, change the length of the third side of the triangle, thereby changing the angle between the first and second sides, the angle between the second and third sides, and the angle between the first and third sides, thus realizing the up and down swing of the head rod 121.

[0060] The length of the transition piece 124 can be set as needed. The length of the transition piece 124 will affect the maximum swing amplitude of the head rod 121. The maximum swing amplitude of the transition piece 124 can be changed simply by adjusting the length of the transition piece 124. It should be noted that the first hinge axis 130, the second hinge axis 131 and the third hinge axis 132 should not be on the same straight line, i.e., at the "dead point" position.

[0061] To conceal the transition member 124, the following solutions can be adopted, but are not limited to: The front end of the connecting pipe 120 is provided with two support portions, which are arranged opposite to each other. The transition member 124 is located between the two support portions, thereby ensuring that both the second hinge shaft 131 and the third hinge shaft 132 are located between the two support portions. Of course, in other embodiments, the transition member 124 can also be located outside the connecting pipe 120.

[0062] Please combine Figure 8 As shown, since the diaphragm bag 122 is connected to the head rod 121, when the head rod 121 swings up and down relative to the connecting tube 120, the opening orientation of the diaphragm bag 122 can be changed, that is, the angle between the opening of the diaphragm bag 122 and the axis of the connecting tube 120 can be changed. For example, assuming that the angle between the axis of the connecting tube 120 and the vertical is 45°, if the structure of the prior art is adopted, the opening orientation of the diaphragm bag 122 will also be tilted at a 45° angle with the vertical. However, in this embodiment, by controlling the sliding of the pulling rod 123 within the connecting tube 120, the head rod 121 swings up and down. When the head rod 121 swings upward by 45°, the opening of the diaphragm bag 122 faces directly upward. As the tilt angle of the connecting tube 120 changes, the swing amplitude of the head rod 121 can be adjusted at any time, thereby changing the opening orientation of the diaphragm bag 122. Of course, in other embodiments, the opening of the diaphragm bag 122 may not face directly upward, but may face diagonally upward. Since the angle of inclination of the opening of the taking part 126 is reduced relative to the angle of inclination during insertion, the receiving area can also be increased.

[0063] The control method of the pull rod 123 is not limited. For example, the rear end of the pull rod 123 can be manually pulled to make the pull rod 123 slide in the connecting tube 120; or the forward and backward movement of the pull rod 123 can be controlled by a ball screw structure.

[0064] In this embodiment, the control method of the pull rod 123 can adopt, but is not limited to, the following schemes: Please refer to... Figure 5 , Figure 6 As shown, the diaphragm assembly 12 also includes a control handle 140, which adopts a scissor-type structure. Specifically, the control handle 140 includes a first wrench 141 and a second wrench 142, which are hinged to each other.

[0065] The structure of the first wrench 141 and the second wrench 142 is not limited. They can refer to the scissors in the prior art, or they can be two rods distributed in an X shape. The first wrench 141 is fixedly connected to the rear end of the connecting tube 120. The connection method between the two is not limited, such as integral molding, welding, bonding, etc. The second wrench 142 is connected to the rear end of the pull rod 123. When the second wrench 142 rotates relative to the first wrench 141, it can be used to pull the pull rod 123 back and forth.

[0066] The connection method between the second wrench 142 and the pull rod 123 is not limited. For example, the connection method between the second wrench 142 and the pull rod 123 can refer to the indirect hinge connection method between the pull rod 123 and the head rod 121. In this embodiment, the following scheme can also be adopted: the second wrench 142 is provided with a T-shaped through groove 143. The T-shaped through groove 143 and the pull rod 123 are set at an angle. The cross section of the T-shaped through groove 143 is approximately T-shaped. The T-shaped through groove 143 includes a strip-shaped part and a limiting part. The width of the limiting part needs to be greater than the width of the strip-shaped part. The cross section of the strip-shaped part can be rectangular, etc., and the cross section of the limiting part can be arc-shaped or rectangular, etc.

[0067] The rear end of the pull rod 123 is provided with a ball head 144. The rear end of the pull rod 123 passes through the strip-shaped portion and the ball head 144 is slidably embedded in the limiting portion of the T-shaped through groove 143. Generally speaking, the T-shaped through groove 143 and the pull rod 123 can be located in the same plane. That is, when the second wrench 142 rotates relative to the first wrench 141, the ball head 144 and the T-shaped through groove 143 can both slide relative to each other and rotate relative to each other to a certain extent.

[0068] Once the opening orientation of the diaphragm bag 122 is adjusted, it generally needs to be maintained. The method for maintaining this orientation is not limited; for example, medical personnel can continuously hold the control handle 140 to maintain the position of the second lever 142. In this embodiment, to free the hands of medical personnel, the following solutions can be adopted, but are not limited to: Please combine... Figure 7 As shown, the diaphragm assembly 12 also includes a locking assembly 150, which is used to fix the position of the pull rod 123.

[0069] Specifically, the locking assembly 150 includes a locking cylinder 151, a locking ball 152, and a locking spring 153. One end of the locking cylinder 151 is a closed end and the other end is an open end. The locking ball 152 and the locking spring 153 are both located inside the locking cylinder 151.

[0070] The locking cylinder 151 can be a cylindrical or square cylinder, etc. The locking ball 152 can be spherical and its material is not limited. The locking ball 152 can move along the axial direction of the locking cylinder 151. The locking spring 153 can be a compression spring. One end of the locking spring 153 abuts against the closed end of the locking cylinder 151 and the other end abuts against the locking ball 152. The locking spring 153 makes the locking ball 152 tend to disengage from the open end of the locking cylinder 151.

[0071] A locking surface 154 is provided on one side of the pull rod 123. The locking surface 154 is wavy along the axial direction of the pull rod 123. A locking hole is provided on the connecting pipe 120. The locking cylinder 151 is threaded into the locking hole. The locking spring 153 presses the locking ball 152 onto the locking surface 154.

[0072] Please combine Figure 9 , Figure 10 As shown, when the control handle 140 drives the traction rod 123 to move back and forth relative to the connecting tube 120, the locking ball 152 can roll along the locking surface 154. Due to the action of the locking spring 153, the traction rod 123 can only move back and forth when the force applied to the traction rod 123 exceeds the preset threshold. Therefore, even if the medical staff releases the control handle 140, the traction rod 123 cannot move back and forth at will, keeping the traction rod 123 in the corresponding position, thereby ensuring the orientation of the opening of the diaphragm bag 122. When it is necessary to change the orientation of the diaphragm bag 122, the medical staff only needs to apply a force exceeding the preset threshold to the control handle 140, which will cause the second wrench 142 to rotate relative to the first wrench 141 and pull the traction rod 123 back and forth, allowing the locking ball 152 to reach different positions on the locking surface 154 to achieve locking.

[0073] In some embodiments, the cannulation assembly 11 may further include an insertion head 110 located at the rear end of the insertion tube 111, and the septum assembly 12 may further include a locking head disposed at the rear end of the connecting tube 120, with a corresponding latch on the locking head of the insertion head 110. The structure of the latch is not limited and can refer to the prior art; the latch can lock or unlock the insertion head 110 and the locking head. Of course, it is also possible to only provide the insertion head 110 without providing the locking head, or to not provide both the insertion head 110 and the locking head.

[0074] In addition, the bottom of the diaphragm bag 122 may also be provided with a suction port, which is connected to a suction channel, and the suction channel is inserted into the connecting pipe 120 or the pulling rod 123. Of course, it is also possible that the bottom of the diaphragm bag 122 is not provided with a suction port, or that the suction port is located in another position.

[0075] In other embodiments, the laparoscopic surgery tumor-free isolation device 10 can also be used with an independent suction tube 125. The suction tube 125 is inserted into the abdomen and can extend into the retrieval part 126. The removed tissue or waste fluid is extracted by negative pressure suction from an external pump.

[0076] The method of using the laparoscopic surgery tumor-free isolation device 10 provided in this embodiment is as follows:

[0077] Please combine Figure 11 As shown, the intubation assembly 11 is inserted into the body at an angle through an opening in the patient's abdomen, so that the tip of the intubation assembly 11 reaches the designated position.

[0078] Before inserting the diaphragm assembly 12 into the abdomen, the diaphragm pouch 122 is compressed into a ball. Please combine with... Figure 12 As shown, insert the septum assembly 12 along the cannula assembly 11 until the front end of the septum assembly 12 extends from the front end of the cannula assembly 11 to the designated position. At this time, the head rod 121 and the connecting tube 120 can be in the same direction.

[0079] Secure the locking head and the insertion head 110;

[0080] Please combine Figure 13 As shown, the septal sac 122 is opened by inflation or other means. At this time, the opening of the septal sac 122 is inclined relative to the vertical and horizontal planes. It should be noted that because the septal sac 122 is made of flexible material, if it encounters an obstruction from an organ during expansion, it can conform to the organ surface and its shape can be deformed to a certain extent. Figures 13-15 In order to make the state before and after unfolding more intuitive, the deformation or fitting state was not fully shown.

[0081] Medical staff grasp the control handle 140 and apply a certain amount of force, causing the second wrench 142 to rotate relative to the first wrench 141. The second wrench 142 drives the traction rod 123 to move back and forth. The traction rod 123 drives the head rod 121 to swing up and down through the transition piece 124, thereby changing the opening orientation of the diaphragm bag 122 until the opening of the retrieval part 126 of the diaphragm bag 122 faces directly upward. The retrieval part 126 can partially or completely cover the area below the ovary, while the blocking part 127 covers the intestines and other organs below the ovary. Please refer to the adjusted state. Figure 14 As shown; during this process, the locking ball 152 rolls along the locking surface 154, and the locking spring 153 repeatedly presses and resets, pressing the locking ball 152 tightly onto the locking surface 154;

[0082] After the opening orientation of the diaphragm bag 122 is adjusted, the medical staff can release the control handle 140. At this time, due to the action of the locking component 150, the influence of the weight of the head rod 121 and the diaphragm bag 122 can be ignored without the action of external force. The pulling rod 123 cannot move back and forth relative to the connecting tube 120, thereby locking the opening orientation of the diaphragm bag 122.

[0083] Medical staff performed procedures such as excision and ablation on the lesions;

[0084] The retrieval section 126 of the septum bag 122 can receive the excised tissue and waste fluid, while the shielding section 127 can prevent waste fluid from dripping onto organs such as the intestines during the excision process. Even if the excised tissue has become cancerous, it can prevent cancer metastasis and achieve the tumor-free requirement during laparoscopic surgery. Of course, if the excised tissue is not cancerous, it can also have a preventive effect. In addition, the shielding section 127 can also prevent burns to the intestines. This is because when using plasma technology to remove uterine fibroids, the thermal damage is very high and it is easy to burn the intestines below. The retrieval section 126 can block some of the heat, while the shielding section 127 can further block the heat.

[0085] Please combine Figure 15 As shown, if the laparoscopic surgery tumor-free isolation device 10 includes a suction tube 125 or a suction port at the bottom of the tumor-septum bag 122, the surgical excision or tissue waste fluid can be suctioned during the operation.

[0086] When it is necessary to remove the laparoscopic surgery tumor-free isolation device 10, the above steps can be reversed.

[0087] The above steps can be added, removed, modified, or their order adjusted as needed. For example, if the laparoscopic surgery tumor-free isolation device 10 does not include a locking head and an insertion head 110, this step can be cancelled; if the laparoscopic surgery tumor-free isolation device 10 does not include a locking component 150, the opening of the tumor-free bag 122 can be locked by manual fixation or other means; the opening of the retrieval part 126 is not facing directly upward, but diagonally upward, etc.

[0088] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tumor-free isolation device for laparoscopic surgery, characterized in that, The device includes an intubation assembly and a septum assembly. The septum assembly is inserted into the intubation assembly and extends from the front end of the intubation assembly. The septum assembly includes a connecting tube, a head rod, a septum bag, and a traction rod. The head rod is hinged to the front end of the connecting tube, the septum bag is disposed on the head rod, and the traction rod is slidably inserted into the connecting tube and its front end is hinged to the head rod. When the traction rod moves back and forth, it can cause the head rod to swing up and down and change the angle between the opening of the septum bag and the axis of the connecting tube.

2. The laparoscopic surgery tumor-free isolation device according to claim 1, characterized in that, The diaphragm assembly also includes a transition piece, the middle part of the head rod is hinged to the connecting pipe, and the traction rod and one end of the head rod are indirectly hinged through the transition piece.

3. The laparoscopic surgery tumor-free isolation device according to claim 2, characterized in that, The hinge axis between the head rod and the connecting pipe is the first hinge axis, the hinge axis between the head rod and the transition piece is the second hinge axis, and the hinge axis between the transition piece and the traction rod is the third hinge axis. The first hinge axis, the second hinge axis, and the third hinge axis are arranged in a triangle.

4. The laparoscopic surgery tumor-free isolation device according to claim 1, characterized in that, The diaphragm assembly also includes a scissor-type control handle, which includes a first wrench and a second wrench hinged together. The first wrench is fixedly connected to the rear end of the connecting tube, and the second wrench is connected to the rear end of the pull rod and is used to pull the pull rod back and forth.

5. The laparoscopic surgery tumor-free isolation device according to claim 4, characterized in that, The second wrench is provided with a T-shaped through groove, which is set at an angle to the pull rod. The rear end of the pull rod is provided with a ball head, which is slidably embedded in the T-shaped through groove.

6. The laparoscopic surgery tumor-free isolation device according to claim 4, characterized in that, The diaphragm assembly also includes a locking assembly, which includes a locking ball and a locking spring. One side of the pull rod is provided with a wave-shaped locking surface, and the connecting pipe is provided with a locking hole. The locking ball and the locking spring are disposed in the locking hole, and the locking spring presses the locking ball against the locking surface.

7. The laparoscopic surgery tumor-free isolation device according to claim 6, characterized in that, The locking assembly also includes a locking cylinder, one end of which is closed and the other end is open. The locking cylinder is threaded into the locking hole, and the locking ball and the locking spring are both located inside the locking cylinder.

8. The laparoscopic surgery tumor-free isolation device according to claim 1, characterized in that, The diaphragm bag includes a retrieval section and a shielding section. The shielding section is located at the bottom end of the retrieval section. The opening of the diaphragm bag is supported by an annular shape memory metal wire, or the diaphragm bag adopts an inflatable structure.

9. The laparoscopic surgery tumor-free isolation device according to claim 1, characterized in that, The cannulation assembly includes an insertion head and an insertion tube. The insertion head is located at the rear end of the insertion tube. The septum assembly also includes a locking head, which is located at the rear end of the connecting tube. The insertion head and the locking head are respectively provided with a locking buckle.

10. The laparoscopic surgery tumor-free isolation device according to claim 1, characterized in that, The bottom of the diaphragm bag is provided with a suction port, which is connected to a suction tube. The suction tube is inserted into the connecting tube or the pulling rod.

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