Object taking device for endoscopic surgery

Abstract

The utility model discloses an object taking device for endoscopic surgery, and belongs to the technical field of medical instruments. The device comprises an outer sheath rod, the inner side of the outer sheath rod is movably connected with an inner sheath rod, a memory steel wire is installed at the end, located on the inner side of the outer sheath rod, of the inner sheath rod, a collection bag is arranged on the memory steel wire, and a liquid suction assembly is arranged on the outer sheath rod; the liquid suction assembly comprises an installation sleeve installed on the outer side of the outer sheath rod. A liquid suction assembly is arranged at the front end of an outer sheath rod, when the outer sheath rod goes deep into a body, a mounting sleeve of the outer sheath rod is also located in the body, a liquid suction device of the outer sheath rod is connected with a connecting base at one end of a liquid drainage pipe, suction force is generated by a liquid suction hole of the outer sheath rod through starting of the liquid suction device, and waste liquid in the body is sucked into a liquid suction cavity; and then the liquid enters the liquid absorption device through the liquid discharge pipe, so that a doctor or a nurse does not need to pause an operation to carry out manual liquid absorption operation, the operation process is simplified, the operation efficiency is greatly improved, and the operation time is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an endoscopic surgical retrieval device. Background Technology

[0002] An endoscopic surgical retrieval device is a specialized medical instrument used to collect, hold, and easily remove surgical specimens. Typically, an endoscopic surgical retrieval device consists of an inner sheath rod and an outer sheath rod. The outer sheath rod contains a collection bag for holding the removed tissues and organs. Once the outer sheath rod enters the abdominal cavity, simply push the inner sheath handle, and the collection bag at the front end will naturally pop open for collection. After collection, pull the inner sheath handle to tighten the bag opening, and the surgical specimen and removed specimens can be retrieved.

[0003] Existing endoscopic surgical retrieval instruments require the removal of internal waste fluid before collecting surgical excisions. This operation increases the steps and time required for surgical preparation and also has drawbacks such as being cumbersome, inefficient, increasing surgical risks, and increasing the burden on medical staff. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing an endoscopic surgical retrieval device.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: an endoscopic surgical retrieval device, including an outer sheath rod, an inner sheath rod movably connected to the inner side of the outer sheath rod, a memory steel wire installed at one end of the inner sheath rod located inside the outer sheath rod, a collection bag provided on the memory steel wire, and a liquid suction component provided on the outer sheath rod;

[0006] The liquid suction assembly includes a mounting sleeve installed on the outside of the outer sheath rod. The side wall of the mounting sleeve has a liquid suction chamber, and the side wall of the liquid suction chamber has a liquid suction hole. The side wall of the mounting sleeve is connected to a drain pipe, and a connecting seat is installed at the end of the drain pipe away from the mounting sleeve.

[0007] By adopting the above technical solution and setting up the aspiration component, doctors or nurses no longer need to pause the surgery to perform manual aspiration. This not only simplifies the surgical procedure but also greatly improves surgical efficiency and shortens the surgical time.

[0008] Optionally, the memory steel wire is a titanium alloy wire.

[0009] By adopting the above technical solution and using titanium alloy as the material for memory steel wire, the memory steel wire is made non-allergenic to the human body.

[0010] Optionally, the collection bag is a hydrophilic film bag.

[0011] By adopting the above technical solution and using a hydrophilic film bag as the material for the collection bag, the visibility of the endoscope is improved. At the same time, the hydrophilic film bag improves the wound environment, reduces the growth of bacteria, and greatly reduces the risk of infection.

[0012] Optionally, the outer diameter of the mounting sleeve is 1-3 times the diameter of the outer sheath rod, and the inner diameter of the mounting sleeve is adapted to the diameter of the outer sheath rod.

[0013] By adopting the above technical solution, the installation sleeve can be replaced with different specifications of installation sleeve according to the needs of the surgery.

[0014] Optionally, a fixing seat is fixedly connected to the outer side of the mounting sleeve, and fixing bolts are installed on the surface of the fixing seat.

[0015] By adopting the above technical solution, and through the cooperation between the fixing seat and the fixing bolt, the mounting sleeve can be easily disassembled and replaced.

[0016] Optionally, the number of suction holes is several, and the several suction holes are distributed in a ring array on the surface of the mounting sleeve.

[0017] By adopting the above technical solution and setting multiple suction holes, the efficiency of liquid suction can be improved.

[0018] Optionally, a tube fitting is installed on the outside of the drain pipe, and the surface of the tube fitting is perforated. The tube fitting is connected to the outer wall of the outer sheath rod through the perforation and fastening bolts.

[0019] By adopting the above technical solution, the setting of the pipe fitting can limit the position of its drain pipe.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. By installing a suction component at the front end of the outer sheath rod, the installation sleeve is also located inside the body when the outer sheath rod is inserted. The liquid absorption device is connected to the connector at one end of the drainage tube. Activation of the liquid absorption device generates suction at the suction port, drawing waste fluid from the body into the suction chamber. The fluid then flows through the drainage tube into the liquid absorption device, eliminating the need for doctors or nurses to pause surgery for manual suction. This simplifies the surgical procedure, significantly improves efficiency, and shortens surgical time. 2. The material of the memory steel wire is replaced from nickel alloy to titanium alloy, ensuring it is non-allergenic to the human body. 3. The collection bag material is replaced with a hydrophilic film bag, enhancing the visibility of the endoscope. Simultaneously, the hydrophilic film bag improves the wound environment, reduces bacterial growth, and significantly lowers the risk of infection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional connection structure between the outer sheath rod and the liquid absorption assembly of this utility model;

[0023] Figure 2 This is a cross-sectional view of the mounting sleeve of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the tube assembly of this utility model;

[0025] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the rope-connected object retriever of this utility model.

[0027] In the diagram: 1. Outer sheath rod; 101. Handle; 2. Inner sheath rod; 3. Memory steel wire; 4. Collection bag; 5. Liquid suction assembly; 51. Mounting sleeve; 511. Fixing seat; 512. Fixing bolt; 52. Liquid suction chamber; 53. Liquid suction hole; 54. Drain tube; 541. Tube kit; 542. Perforation; 55. Connecting seat; 6. Silicone tube; 7. Ligating cord. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figure 1 As shown in Figure 4, Embodiment 1 is a non-wire-attached retrieval device. The specific solution is as follows: An endoscopic surgical retrieval device includes an outer sheath rod 1, a handle 101 fixedly connected to the outer side of the outer sheath rod 1, and threaded grooves with 3-5 threads on the outer side of the outer sheath rod 1. The handle 101 is a double-eared handle, and an inner sheath rod 2 is movably connected to the inner side of the outer sheath rod 1. The outer sides of both the outer sheath rod 1 and the inner sheath rod 2 are smooth, and the smooth outer sheath rod 1 and the inner sheath rod 2 are convenient to use.

[0031] The inner sheath rod 2 is fitted with a memory steel wire 3 at one end located inside the outer sheath rod 1. The memory steel wire 3 is made of titanium alloy and has moderate strength, meeting the requirements for repeated expansion and contraction during surgical procedures to prevent accidental leakage. Existing memory steel wires are either too stiff or too soft, and nickel alloy memory steel wires can cause allergies in humans. Using titanium alloy as the memory steel wire 3 ensures it is non-allergenic. The connection strength of the memory steel wire 3 should be no less than a static tensile force of 10N for 15 seconds. The memory wire 3 is equipped with a collection bag 4, which is a hydrophilic film bag. The hydrophilic film bag enhances the visibility of the endoscope used with it. At the same time, the hydrophilic film bag improves the wound environment, reduces the growth of bacteria, and greatly reduces the risk of infection. However, the existing collection bags 4 are either too thick or too thin, and are non-hydrophilic film bags. The collection bags 4 that are too thick have poor visibility under the endoscope, and the collection bags 4 that are too thin have poor load-bearing capacity. The thickness of the hydrophilic film bag is ≤0.1mm, and the tensile strength of the hydrophilic film bag is ≥10MPa. The outer sheath rod 1 is equipped with a liquid suction component 5.

[0032] The aspiration assembly 5 includes an installation sleeve 51 installed on the outside of the outer sheath rod 1. The outer diameter of the installation sleeve 51 is 1-3 times the diameter of the outer sheath rod 1. The specifications of the installation sleeve 51 can be changed according to the needs of the surgery. The inner diameter of the installation sleeve 51 is adapted to the diameter of the outer sheath rod 1. A fixing seat 511 is fixedly connected to the outside of the installation sleeve 51. A fixing bolt 512 is installed on the surface of the fixing seat 511. The fixing bolt 512 is threadedly connected to the threaded groove. The cooperation between the fixing seat 511 and the fixing bolt 512 allows the installation sleeve 51 to be disassembled or replaced according to the needs of the surgery.

[0033] The mounting sleeve 51 has a liquid absorption chamber 52 on its side wall, which is arranged in a ring on the side wall of the mounting sleeve 51. The side wall of the liquid absorption chamber 52 has several liquid absorption holes 53 arranged in a ring array on the surface of the mounting sleeve 51. A drain pipe 54 is connected to the side wall of the mounting sleeve 51 and is connected to the liquid absorption chamber 52. A tube fitting 541, made of elastic material and C-shaped, is installed on the outside of the drain pipe 54. The number of tube fittings 541 is 2-4. The surface of each tube fitting 541 has a through hole 542. The tube fitting 541 is connected to the outer wall of the outer sheath rod 1 through the through hole 542 and the fastening bolt. The fastening bolt is threadedly connected to the threaded groove. The fit between the fastening bolt and the threaded groove allows the tube fitting 541 to be easily disassembled and assembled. The end of the drain pipe 54 away from the mounting sleeve 51 is equipped with a connecting seat 55. The connecting seat 55 can communicate with the liquid absorption device. The liquid absorption device can be a liquid suction pump or syringe of the prior art.

[0034] The working principle of the above embodiments is as follows:

[0035] 1. The surgeon holds the retrieval instrument and inserts the front end of the outer sheath rod 1 into the abdominal cavity through the puncture sheath, simultaneously driving the installation sleeve 51 into the abdominal cavity.

[0036] 2. Connect the liquid absorption device to the connector 55 and start the liquid absorption device so that the suction hole 53 generates suction to draw the waste liquid in the body. After the drawn waste liquid enters the suction chamber 52, it is discharged from the body through the drain pipe 54.

[0037] 3. Gently push the inner sheath rod 2, and the collection bag 4 will automatically open in the abdominal cavity.

[0038] 4. The surgeon slowly places the removed tissue into collection bag 4.

[0039] 5. At the end of the operation, pull the inner sheath rod 2 outward with your right hand, and the opening of the collection bag 4 will be drawn into the outer sheath rod 1 and the puncture cannula. Gently lift the handle 101 and the puncture cannula, and smoothly pull the collection bag 4 out of the body along with the excised material.

[0040] like Figure 5 As shown, Embodiment 2 is a wire retrieval device. Based on the technology of Embodiment 1, the wire retrieval device is equipped with a ligating rope 7 and a silicone tube 6. The silicone tube 6 is located outside the memory steel wire 3. The ligating rope 7 passes through the outer sheath rod 1 and is connected to the silicone tube 6. The breaking strength of the ligating rope 7 is not less than a tensile force of 26.7N.

[0041] The working principle of the above embodiments is as follows:

[0042] 1. The surgeon holds the retrieval instrument and inserts the front end of the outer sheath rod 1 into the abdominal cavity through the puncture sheath, simultaneously driving the installation sleeve 51 into the abdominal cavity.

[0043] 2. Connect the liquid absorption device to the connector 55 and start the liquid absorption device so that the suction hole 53 generates suction to draw the waste liquid in the body. After the drawn waste liquid enters the suction chamber 52, it is discharged from the body through the drain pipe 54.

[0044] 3. Gently push the inner sheath rod 2, and the collection bag 4 will automatically open in the abdominal cavity.

[0045] 4. The surgeon slowly places the removed tissue into collection bag 4.

[0046] 5. After the inner sheath rod 2 is pulled out, the collection bag 4 automatically detaches from the memory wire 3, and the outer sheath rod 1 is removed.

[0047] 6. At the end of the surgery, gently lift the ligature 7 to tighten the opening of the collection bag 4, and smoothly pull the collection bag 4 out of the body along with the excised tissue.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An endoscopic surgical retrieval instrument, characterized in that, Includes an outer sheath rod (1), an inner sheath rod (2) is movably connected to the inner side of the outer sheath rod (1), a memory steel wire (3) is installed at one end of the inner sheath rod (2) located inside the outer sheath rod (1), a collection bag (4) is provided on the memory steel wire (3), and a liquid suction assembly (5) is provided on the outer sheath rod (1). The liquid suction assembly (5) includes an installation sleeve (51) installed on the outside of the outer sheath rod (1). The side wall of the installation sleeve (51) is provided with a liquid suction chamber (52). The side wall of the liquid suction chamber (52) is provided with a liquid suction hole (53). The side wall of the installation sleeve (51) is connected to a drain pipe (54). A connecting seat (55) is installed at the end of the drain pipe (54) away from the installation sleeve (51).

2. The endoscopic surgical retrieval device according to claim 1, characterized in that: The memory steel wire (3) is a titanium alloy wire.

3. The endoscopic surgical retrieval device according to claim 1, characterized in that: The collection bag (4) is a hydrophilic film bag.

4. An endoscopic surgical retrieval device according to claim 1, characterized in that: The outer diameter of the mounting sleeve (51) is 1-3 times the diameter of the outer sheath rod (1), and the inner diameter of the mounting sleeve (51) is adapted to the diameter of the outer sheath rod (1).

5. An endoscopic surgical retrieval device according to claim 1, characterized in that: A fixing seat (511) is fixedly connected to the outside of the mounting sleeve (51), and a fixing bolt (512) is installed on the surface of the fixing seat (511).

6. An endoscopic surgical retrieval device according to claim 1, characterized in that: The number of suction holes (53) is several, and the several suction holes (53) are distributed in a ring array on the surface of the mounting sleeve (51).

7. An endoscopic surgical retrieval device according to claim 1, characterized in that: A tube fitting (541) is installed on the outside of the drain pipe (54). A perforation (542) is provided on the surface of the tube fitting (541). The tube fitting (541) is connected to the outer wall of the outer sheath rod (1) through the perforation (542) and fastening bolts.

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