Endoscopic lymph node fetching bag

Abstract

The utility model discloses a lymph node fetching bag under an endoscope, relates to the technical field of medical instruments, and aims to solve the technical problems that an existing thumbstall is inconvenient to operate when used for fetching lymph nodes from the interior of a human body, unstable in clamping and prone to causing harm to the human body. The device comprises a main rod internally connected with an auxiliary rod in a sliding mode, the auxiliary rod is internally connected with a grabbing device in a sliding and rotating mode, one end of the auxiliary rod is further provided with a collecting device, the collecting device comprises a folding framework, the folding framework is sleeved with a leakage-proof device, one end of the leakage-proof device is open, and the leakage-proof device is further communicated with a collecting bag. The lymph nodes cut from human tissue are collected through the folding framework, the main rod, the auxiliary rod, the collecting bag and the like, operation is easy and convenient, the lymph nodes are not prone to accumulation, and the human body cannot be hurt in the lymph node taking-out process.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a laparoscopic lymph node extraction bag. Background Art

[0002] Lymph nodes are important immune organs in the body. Like blood vessels, they are distributed throughout the body and are widely present in various parts of the body. Lymph node metastasis refers to cancer cells entering the lymph nodes through the surrounding lymphatic vessels, and then spreading to lymph nodes farther away in the human body through the blood. When the body has cancer or is infected by a virus, this lesion will react to the lymph nodes and cause swollen lymph nodes.

[0003] In order to determine the cause of lymph node enlargement and whether the tissues near the lymph nodes are diseased, doctors often use various technical means to determine the real cause of lymph node enlargement, including laparoscopic surgery in the chest and abdominal cavities. First, three small incisions are made on the surface of the human body cavity. The clamping knife, laparoscope and ultrasonic knife used in the operation enter the human body through these three small incisions respectively. Through the laparoscope and the display screen connected to the laparoscope, the doctor can observe the internal cavity of the human body, and then use a specific marker to mark the lymph nodes in the corresponding parts of the human body. The doctor holds the clamping knife in one hand and the ultrasonic knife in the other hand to cut the marked lymph nodes, cut the lymph nodes from the human body cavity, and use the clamping knife to put the lymph nodes into the thumb sleeve cut off the glove, and then pull them out of the human body through the channel where the ultrasonic knife enters the human body. Then the doctor performs a biopsy on the removed lymph nodes to determine whether the tissues near the lymph nodes are diseased and the disease conditions.

[0004] It is difficult to remove lymph nodes using the thumb cuff. First, the doctor needs to accurately clamp the separated lymph nodes into the thumb cuff. The lymph nodes are a kind of circular tissue, generally with a diameter of less than 2 cm. The diameter of the thumb cuff matches the diameter of the human finger, and the size difference between the two is not much. It is inconvenient to insert the lymph nodes into the thumb cuff by surgical instruments inside the human body. Secondly, the lymph nodes are easily accumulated when stuffed into the thumb cuff, so when the thumb cuff is pulled out of the human body, it is easy to be stuck by the incision on the human body surface and cause harm to the human body. In the process of pulling the thumb cuff filled with lymph nodes out of the human body, it is also easy for the thumb cuff to slip due to unstable clamping, which increases the burden on doctors and patients. Utility Model Content

[0005] The utility model discloses a laparoscopic lymph node extraction bag, which is intended to solve the technical problems of inconvenient operation of extracting lymph nodes from the human body by using thumb sleeves, unstable clamping and easy harm to the human body.

[0006] In order to solve the above-mentioned technical problems, the technical solutions adopted by the present utility model are as follows:

[0007] A laparoscopic lymph node extraction bag comprises a main rod, a secondary rod is slidably connected inside the main rod, a grasping device is slidably connected inside the secondary rod, the grasping device can rotate inside the secondary rod, a collecting device is also arranged at one end of the secondary rod, the collecting device comprises a folding frame, a leak-proof device is arranged on the outer sleeve of the folding frame, one end of the leak-proof device is open, and the leak-proof device is also connected to the collecting bag.

[0008] After adopting this technical solution, initially, the auxiliary rod, the collecting device and the grasping device are all in the inner cavity of the main rod. The main rod can be clamped in the puncture tube connected to the incision on the human body surface. The device enters the human body cavity through the puncture tube. The sliding auxiliary rod can release the folding frame from the main rod, and the folding frame is unfolded. The leak-proof device wraps the folding frame to form a ring-shaped collecting device. The lymph nodes cut away from the patient's tissues and organs in the patient's cavity can be grasped from the opening of the leak-proof device to the collecting device. The doctor only needs to align the opening to use the gravity of the lymph nodes to move the lymph nodes. The lymph nodes are collected into a collection bag, which is easy to operate. The leak-proof device can prevent the lymph nodes from leaking out of the collection device. The lymph nodes are then collected into the collection bag through the collection device and arranged in sequence in the collection bag. When the collection is completed, the auxiliary rod is slid again to drive the collection bag into the inner cavity of the main rod, and the connection between the puncture needle and the main rod is disconnected, and the device is taken out of the human body. According to the above process, the collection bag is pushed out of the main rod and placed in a sample bag for testing. The lymph nodes are placed in the bag and the device is taken out of the human body. This will not cause lymph node accumulation and the lymph nodes can be quickly taken out of the human body, reducing the patient's pain.

[0009] Wherein, the folding frame includes several support frames, each of which is composed of two hinged connecting rods, one of which is hinged to the auxiliary rod, and another connecting rod is slidably connected to the auxiliary rod, and the ends of the two connecting rods are connected by springs.

[0010] After adopting this technical solution, the support frame can be changed from a folded state to an extended state or from an extended state to a folded state by sliding the auxiliary rod in the inner cavity of the main rod. In the extended state, the collecting device and the leak-proof device are extended, with a larger surface area, which is convenient for receiving lymph nodes. In the folded state, the collecting device and the leak-proof device can be folded, and under the pull of the auxiliary rod, the collecting device and the leak-proof device can be driven into the inner cavity of the main rod, which is convenient for removing lymph nodes from the human body cavity and can increase the stability of the device when removing lymph nodes.

[0011] Wherein, the grasping device comprises a spoon handle pull rod, the spoon handle pull rod is provided with a receiving groove for accommodating lymph nodes, the auxiliary rod is provided with a lymph node outlet, and a seesaw is provided on the side of the lymph node outlet away from the spoon handle pull rod.

[0012] After adopting this technical solution, when the device is in the human body cavity and the lymph nodes have been separated from the tissue, the spoon handle pull rod can be used to directly pull the lymph nodes into the auxiliary rod, and the connection between the lymph nodes and the spoon handle railing can be loosened through the seesaw on the auxiliary rod, and then the lymph nodes are leaked into the collection device through the lymph node outlet on the auxiliary rod.

[0013] Wherein, the leakage prevention device is provided with a through opening, the through opening is communicated with the collecting bag, and the through opening is arranged on the side wall of the leakage prevention device at a vertical position of the lymph node outlet.

[0014] After adopting this technical solution, the lymph nodes collected by the collecting device slowly fall into the collecting bag through the opening on the leak-proof device and are arranged in sequence.

[0015] Wherein, a pull ring is provided at one end of the spoon handle pull rod away from the grabbing device.

[0016] After adopting this technical solution, the spoon handle pull rod can be pulled through the pull ring, and the spoon handle pull rod containing the lymph nodes can be pulled to the inner cavity of the auxiliary rod to cooperate with the lymph node outlet, so that the lymph nodes are collected into the collection device.

[0017] Wherein, the auxiliary rod is provided with an elastic clamping piece, and the main rod is provided with a clamping groove cooperating with the elastic clamping piece.

[0018] After adopting this technical solution, the auxiliary rod can be fixed at the fixed position of the main rod through the cooperation of the elastic clamp and the clamping groove, and then the collecting device and the grasping device can be close to the human cavity tissue by the different position connections between the main rod and the puncture tube.

[0019] Among them, a first sliding groove is arranged in the main rod, the first sliding groove is slidably connected to the first slider, the first slider is connected to the auxiliary rod, a second sliding groove is arranged in the auxiliary rod, the second sliding groove is an annular groove, the second sliding groove is slidably connected to the second slider, and the second slider is connected to the spoon handle pull rod.

[0020] After adopting this technical solution, the spoon handle pull rod can slide and rotate in the auxiliary rod, support the lymph nodes already in the lymph node receiving groove during the rotation process, and then slide the spoon handle pull rod to pull the lymph nodes into the inner cavity of the auxiliary rod, hook the lymph nodes that have been separated from the human tissue, and then pull out the human body as a biopsy specimen. The auxiliary rod slides in the inner cavity of the main rod, and can release or retract tissue components such as the collection device and the leak-proof device from the inner cavity of the main rod.

[0021] Wherein, a limiting ring is arranged at one end of the auxiliary rod away from the grasping device, and a limiting groove is arranged at one end of the main rod away from the grasping device.

[0022] After adopting this technical solution, the axial position of the main rod and the auxiliary rod can be limited by the connection between the limiting ring and the limiting groove, and the setting of the limiting ring makes it easy to pull the auxiliary rod to move in the inner cavity of the main rod.

[0023] Wherein, the collecting bag is a thumb-shaped bag.

[0024] After adopting this technical solution, the collected lymph nodes can be arranged in sequence in the collection bag and collected into the inner cavity of the main rod during the sliding of the auxiliary rod. The lymph nodes are not accumulated and can be easily taken out of the human body along with the withdrawal of the main rod.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0026] (1) A foldable frame, a collecting bag, a slidable main rod, a secondary rod, etc. are used. When the lymph nodes are removed, the collecting bag containing the lymph nodes can be collected in the inner cavity of the main rod and withdrawn from the human body at the same time as the main rod withdraws from the human body.

[0027] (2) A folding frame, a leak-proof device, a through opening, a collecting bag, etc. are used. When collecting lymph nodes, the lymph nodes only need to be thrown into the collecting device through the opening of the leak-proof device. The operation is simple, and the leak-proof device can prevent the overflow of the lymph nodes collected by the collecting device.

[0028] (3) The spoon handle pull rod can be used to directly collect the lymph nodes scattered around the collection device into the collection device by hooking and pulling. At the same time, the spoon handle pull rod will preliminarily sort the lymph nodes pulled into the device. With the cooperation of the lymph node outlet and the leak-proof device, the lymph nodes can be collected in the collection bag in turn without being pushed and accumulated, making it easy to take out from the main rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0030] Figure 1 This is a schematic diagram of the structure of a laparoscopic lymph node extraction bag of the utility model;

[0031] Figure 2 It is a schematic diagram of the structure of the connection between the collecting device and the auxiliary rod;

[0032] Figure 3 Schematic diagram of the connection between the grabbing device, the auxiliary rod and the main rod.

[0033] Reference numerals

[0034] 1-grabbing device, 101-pull ring, 102-spoon handle pull rod, 103-second slider, 2-main rod, 201-slot, 3-secondary rod, 301-limiting ring, 302-elastic clamp, 303-seesaw, 304-lymph node outlet, 305-first slider, 4-leakage prevention device, 5-collecting device, 501-second fixing ring, 502-collecting bag, 503-through port, 504-first fixing ring, 505-support frame. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and indicated in the accompanying drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0036] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] Combine the following Figure 1-Figure 3 The utility model is described in detail.

[0038] A laparoscopic lymph node extraction bag comprises a main rod 2, a secondary rod 3 is slidably connected inside the main rod 2, a grasping device 1 is slidably connected inside the secondary rod 3, the grasping device 1 can rotate inside the secondary rod 3, a collecting device 5 is also provided at one end of the secondary rod 3, the collecting device 5 comprises a folding frame, a leak-proof device 4 is provided on the outer sleeve of the folding frame, one end of the leak-proof device 4 is open, and the leak-proof device 4 is also connected to a collecting bag 502.

[0039] In this embodiment, the main rod 2 and the auxiliary rod 3 are both made of stainless steel.

[0040] In this embodiment, the main rod 2 is 40 cm long and 1 cm in diameter.

[0041] In this embodiment, the main rod 2 can be snapped into the puncture tube.

[0042] In this embodiment, the folding frame includes several support frames 505, each of which is composed of two hinged connecting rods, one of which is hinged to the auxiliary rod 3, and the other is slidably connected to the auxiliary rod 3, and the ends of the two connecting rods are connected by springs.

[0043] In this embodiment, one end of the auxiliary rod 3 is fixedly connected to the first fixing ring 504, one end of one of the connecting rods of each of the support frames 505 is hinged to the first fixing ring 504, and one end of the other connecting rod is connected to the second fixing ring 501, and the second fixing ring 501 is slidably connected to the auxiliary rod 3.

[0044] In this embodiment, the spring, the first fixing ring 504 and the first fixing ring 501 are welded.

[0045] In this embodiment, four support frames 505 are provided.

[0046] In this embodiment, the connecting rod includes an outer rod and an inner rod, the outer rod is hinged to the inner rod, the outer rod is hinged to the first fixing ring 504, the inner rod is hinged to the second fixing ring 501, the support frame 505 is opened into a hollow umbrella-shaped structure, and the first fixing ring 504 is welded to the auxiliary rod 3.

[0047] In this embodiment, the support frame 505 is adhered to the leakage prevention device 4 .

[0048] In this embodiment, the umbrella-shaped structure formed by the support frame 505 when opened has a hypotenuse of 3 cm and a straight side of 3 cm.

[0049] In this embodiment, the grasping device 1 includes a spoon handle rod 102, on which a receiving groove for receiving lymph nodes is provided, and a lymph node outlet 304 is provided on the auxiliary rod 3, and a rocker 303 is provided on the side of the lymph node outlet 304 away from the spoon handle rod 102.

[0050] In this embodiment, a lymph node outlet 304 is provided at one end of the auxiliary rod 3 close to the second fixing ring 501 .

[0051] In this embodiment, the accommodating groove is an arc-shaped structure.

[0052] In this embodiment, the second fixing ring 501 is an open ring with an opening of 120°. The distance of the opening matches the size of the lymph node, and the opening is connected to the lymph node outlet 304 .

[0053] In this embodiment, the rocker plate 303 and the auxiliary rod 3 are integrally formed.

[0054] In this embodiment, a through opening 503 is provided on the leakage prevention device 4 , and the through opening 503 is communicated with the collecting bag 502 . The through opening 503 is provided on the side wall of the leakage prevention device 4 at a position perpendicular to the lymph node outlet 304 .

[0055] In this embodiment, the anti-leakage device 4 is made of transparent silica gel.

[0056] In this embodiment, the through opening 503 and the anti-leakage device 4 are formed integrally.

[0057] In this embodiment, a pull ring 101 is provided at one end of the spoon handle pull rod 102 away from the grasping device 1 .

[0058] In this embodiment, the pull ring 101 is a stainless steel pull ring, and the pull ring 101 is threadedly connected to the spoon handle pull rod 102.

[0059] In this embodiment, an elastic clamp 302 is disposed on the secondary rod 3 , and a clamping groove 201 cooperating with the elastic clamp 302 is disposed on the main rod 2 .

[0060] In this embodiment, the secondary rod 3 is adhered to the elastic clamp 302 .

[0061] In this embodiment, the working principle of the elastic clamp 302 and the clamping slot 201 is the same as the fixing principle of the main pole of the folding umbrella.

[0062] In this embodiment, a first sliding groove is provided in the main rod 2, and the first sliding groove is slidably connected to the first slider 305, and the first slider 305 is connected to the auxiliary rod 3. A second sliding groove is provided in the auxiliary rod 3, and the second sliding groove is an annular groove. The second sliding groove is slidably connected to the second slider 103, and the second slider 103 is connected to the spoon handle pull rod 102.

[0063] In this embodiment, the first sliding block 305 and the auxiliary rod 3 are integrally formed, and the second sliding block 103 and the spoon handle pull rod 102 are integrally formed.

[0064] In this embodiment, the second slider 103 is an annular slider.

[0065] In this embodiment, a limiting ring 301 is provided at one end of the auxiliary rod 3 away from the grasping device 1 , and a limiting groove is provided at one end of the main rod 2 away from the grasping device 1 .

[0066] In this embodiment, the limiting ring 301 is made of hard rubber and is adhered to the limiting ring 301 .

[0067] In this embodiment, the collecting bag 502 is a thumb-shaped bag.

[0068] In this embodiment, the size of the collection bag 502 matches the size of the lymph node.

[0069] The specific use method of the utility model is as follows:

[0070] Reference Figure 1-Figure 3 When the device is used, after the ultrasonic scalpel cuts the lymph nodes to be collected, the ultrasonic scalpel is withdrawn from the incision on the human body surface, and the puncture tube at the incision is retained; the main rod 2 is inserted into the cavity inside the human body along the inner cavity of the puncture tube, and the position of the main rod 2 in the human body cavity is observed from the laparoscope display, the main rod 2 is stopped at a suitable position, and then the auxiliary rod 3 is pushed to align the elastic clamp 302 on the auxiliary rod 3 with the clamping groove 201 on the main rod 2 and be restricted by the clamping groove 201, and the end of the auxiliary rod 3 is The limiting ring 301 at the top is aligned with the limiting groove on the main rod 2, and the limiting ring 301 is clamped into the limiting groove to limit the relative position of the main rod 2 and the auxiliary rod 3. At this time, the collecting device 5 and the leak-proof device 4 connected to the folding frame extend from the main rod 2 and unfold to form an umbrella-shaped structure; the lymph nodes separated from the human tissue structure and in the human body cavity can be directly clamped into the opening 503 of the leak-proof device 4 by the clamping knife, and the lymph nodes are caught by the leak-proof device 4 and are held by the gravity of the lymph nodes. Under the action of the inclined structure of the umbrella-like structure, the lymph nodes are moved to the through-hole to be collected by the collecting bag 502 and arranged in sequence; the lymph nodes can also be hooked and pulled by the spoon handle pull rod 102, and the lymph node receiving groove of the spoon handle pull rod 102 is aligned with the lymph nodes scattered near the device, and the spoon handle pull rod 102 is slid to hook the lymph nodes into the lymph node receiving groove, and then the spoon handle pull rod 102 is hooked and pulled back to the auxiliary rod 3, and the spoon handle pull rod 102 is rotated to align the lymph nodes with the lymph node outlet 304 in the auxiliary rod 3, and enter In the auxiliary rod 3, the spoon handle pull rod 102 continues to be pulled, and the lymph nodes pulled into the auxiliary rod 3 are disconnected from the lymph nodes under the prying of the seesaw 303 in the auxiliary rod 3, and are caught by the leak-proof device 4 through the lymph node outlet 304 in the auxiliary rod 3. Under the action of the gravity of the lymph nodes and the inclined structure of the umbrella-shaped structure, they are moved to the through port to be collected by the collecting bag 502 and arranged in sequence; when the collection of the lymph nodes is completed, the main rod 2 can be withdrawn from the human body according to the above process for subsequent inspection operations.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laparoscopic lymph node extraction bag, characterized in that: The invention comprises a main rod (2), a secondary rod (3) being slidably connected inside the main rod (2), a grasping device (1) being slidably connected inside the secondary rod (3), the grasping device (1) being rotatable inside the secondary rod (3), a collecting device (5) being provided at one end of the secondary rod (3), the collecting device (5) comprising a folding frame, a leak-proof device (4) being provided on the outer cover of the folding frame, one end of the leak-proof device (4) being open, and a collecting bag (502) being connected to the leak-proof device (4).

2. The laparoscopic lymph node extraction bag according to claim 1, characterized in that: The folding frame comprises a plurality of support frames (505), each of the support frames (505) is composed of two hinged connecting rods, one of which is hinged to the auxiliary rod (3), and the other is slidably connected to the auxiliary rod (3), and the ends of the two connecting rods are connected by springs.

3. The laparoscopic lymph node extraction bag according to claim 2, characterized in that: The grasping device (1) comprises a spoon handle pull rod (102), the spoon handle pull rod (102) is provided with a receiving groove for receiving lymph nodes, the auxiliary rod (3) is provided with a lymph node outlet (304), and a seesaw (303) is provided on one end of the lymph node outlet (304) away from the spoon handle pull rod (102).

4. The laparoscopic lymph node extraction bag according to claim 3, characterized in that: The leak-proof device (4) is provided with a through opening (503), the through opening (503) being in communication with the collecting bag (502), and the through opening (503) being provided on the side wall of the leak-proof device (4) at a position perpendicular to the lymph node outlet (304).

5. The laparoscopic lymph node extraction bag according to claim 3, characterized in that: A pull ring (101) is provided at one end of the spoon handle pull rod (102) away from the grasping device (1).

6. A laparoscopic lymph node retrieval bag according to any one of claims 1 to 5, characterized in that: The auxiliary rod (3) is provided with an elastic clamp (302), and the main rod (2) is provided with a clamping groove (201) that cooperates with the elastic clamp (302).

7. A laparoscopic lymph node retrieval bag according to any one of claims 1 to 5, characterized in that: The main rod (2) is provided with a first sliding groove, the first sliding groove is slidably connected to a first slider (305), the first slider (305) is connected to the auxiliary rod (3), the auxiliary rod (3) is provided with a second sliding groove, the second sliding groove is an annular groove, the second sliding groove is slidably connected to a second slider (103), and the second slider (103) is connected to the spoon handle pull rod (102).

8. A laparoscopic lymph node retrieval bag according to any one of claims 1 to 5, characterized in that: A limiting ring (301) is provided at one end of the auxiliary rod (3) away from the grasping device (1), and a limiting groove is provided at one end of the main rod (2) away from the grasping device (1).

9. A laparoscopic lymph node retrieval bag according to any one of claims 1 to 5, characterized in that: The collecting bag (502) is a thumb-shaped bag.

Images