Polyp extirpating device

Abstract

The utility model discloses a polyp removing device, which comprises a removing rod and a taking-out rod which are hinged with each other, and is characterized in that a fixing ring and a removing knife are arranged at the front end of the removing rod, the removing knife is arranged in the fixing ring in a sliding manner, and the removing knife is connected with an operating ring arranged at the tail end of the removing rod through a traction wire; the collection bag is arranged at the front end of the taking-out rod, the suction holes are circumferentially distributed in the inner wall of the collection bag at equal intervals, the negative pressure device is installed on the side wall of the rear end of the taking-out rod, the negative pressure device is communicated with the collection bag through a pipeline, and the control rings are arranged on the side walls of the rear ends of the taking-out rod and the taking-out rod. The collector has the advantages that the inner membrane of a patient cannot be damaged in the excision process, the falling focus can be directly collected after excision, and the falling focus can be effectively prevented from sliding out of the collector.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a polyp removal device. Background Art

[0002] The conventional surgical method for endometrial polyps is to remove the pedicle with hysteroscopic scissors or electrosurgical rings under hysteroscopy; however, the use of hysteroscopic scissors requires high operation requirements. If the operation is not performed by skilled operators, it may increase the risk of uterine perforation; and the use of hysteroscopic electrosurgical rings for resection may lead to unnecessary partial endometrial electroresection, and the thermal effect may also damage the normal endometrium; the endometrium in the uterine cavity is an especially important factor for embryo implantation, and it is extremely important to reduce and avoid endometrial damage as much as possible. Moreover, after the resection is completed, it needs to be removed with biopsy forceps; the entire operation process requires the configuration of two instruments and two operations, which is inconvenient to use and prone to missed picking; and during the removal process, the removed lesions are easy to fall off and slide out of the collector, which is inconvenient to remove the removed lesions, reducing the efficiency of the operation and increasing the labor intensity and workload of medical staff.

[0003] Therefore, in order to solve the above technical problems, the utility model provides a polyp removal device. Utility Model Content

[0004] The utility model aims to provide a polyp removal device which will not cause damage to the patient's endometrium during the removal process, can directly collect the fallen lesions after removal, and can effectively prevent the fallen lesions from sliding out of the collector.

[0005] In order to achieve the above-mentioned technical effect, the utility model is realized through the following technical scheme: a polyp removal device, comprising a removal rod and a removal rod hinged to each other, characterized in that: a fixed ring is arranged at the front end of the removal rod, and a removal knife is slidably installed inside the fixed ring, and the removal knife is connected to an operating ring arranged at the end of the removal rod through a traction wire; the removal rod is rotatably connected to the middle part of the removal rod, a collecting pocket is arranged at the front end of the removal rod, suction holes are equidistantly distributed on the inner wall of the collecting pocket, a negative pressure device is installed on the rear end side wall of the removal rod, the negative pressure device is connected to the collection pocket through a pipeline, and a control ring is arranged on the rear end side wall of the removal rod and the removal rod.

[0006] Furthermore, the surface of the fixing ring is wrapped with a rubber sleeve, and the surface of the rubber sleeve is engraved with anti-slip patterns.

[0007] Furthermore, a guide groove is provided inside the fixing ring, and the removal knife is slidably installed inside the guide groove; a differential block is provided at the rear end of the guide groove; and the differential block is a Y-shaped structure.

[0008] Furthermore, the bottom surface of the removal knife is coplanar with the bottom surface of the fixing ring.

[0009] Furthermore, pulling wires connected to the side walls of the differential block are arranged on both sides of the removal knife; and the ends of the pulling wires are fixedly connected to the pulling wires.

[0010] Furthermore, the collecting bag is a hollow structure; an isolation membrane is arranged inside the collecting bag; and the suction hole and the pipeline do not penetrate the isolation membrane.

[0011] Furthermore, the isolation membrane is a waterproof and breathable membrane.

[0012] The beneficial effects of the utility model are:

[0013] 1) The utility model integrates polypectomy and removal. The polyps cut by the removal knife are collected by the collection bag, which not only maintains the integrity of the polyps, but also eliminates the need to use other instruments to grab the polyps, greatly improving the efficiency of polypectomy and removal;

[0014] 2) The utility model is provided with a fixing ring, a removal knife, a traction wire and an operating ring. The polyp can be inserted into the fixing ring and placed at the bottom end where the polyp is connected to the inner membrane. The operating ring is pulled to drive the removal knife to remove the polyp along the inner membrane surface. The polyp can be completely removed, effectively avoiding the entire polyp from being chopped up during the cutting process, thereby improving the efficiency and completeness of polyp removal.

[0015] 3) The utility model is provided with a collection bag, a suction hole, a pipeline and a negative pressure device, so that when the polyp is removed, the removed polyp can fall into the collection bag by gravity, and the negative pressure device provides negative pressure attraction for the suction hole through the action of the negative pressure device, so as to prevent the polyp from slipping out of the collection bag when the collection bag is taken out after the cutting is completed;

[0016] 4) The utility model provides an isolation membrane made of a waterproof and breathable membrane, which can achieve that during the adsorption process, the negative pressure attraction force generated by the negative pressure device is transmitted to the suction hole without allowing the liquid inside the uterus to enter the pipeline to damage the negative pressure device, thereby reducing the difficulty of cleaning the device later. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 This utility model is along Figure 2 Schematic diagram of the cross section along the AA line;

[0021] Figure 4 It is a top view of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the collection pocket of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Removal rod; 11. Fixing ring; 111. Guide groove; 112. Differential block; 12. Removal knife; 121. Pulling wire; 13. Operating ring; 14. Pulling wire; 2. Removal rod; 21. Collecting bag; 211. Isolation membrane; 22. Suction hole; 23. Negative pressure device; 24. Control ring; 25. Pipeline. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figures 1 to 5 As shown, a polyp removal device comprises a removal rod 1 and a removal rod 2 which are hinged to each other, and is characterized in that: a fixing ring 11 is arranged at the front end of the removal rod 1, and a removal knife 12 is slidably installed inside the fixing ring 11, and the removal knife 12 is connected to an operating ring 13 arranged at the end of the removal rod 11 through a traction wire 14; the removal rod 2 is rotatably connected to the middle part of the removal rod 1, a collecting pocket 21 is arranged at the front end of the removal rod 2, suction holes 22 are equidistantly distributed on the inner wall of the collecting pocket 21, a negative pressure device 23 is installed on the side wall of the rear end of the removal rod 2, the negative pressure device 23 is connected to the collecting pocket 21 through a pipe 25, and a control ring 24 is arranged on the side wall of the rear end of the removal rod 1 and the removal rod 2.

[0028] The surface of the fixing ring 11 is wrapped with a rubber sleeve, and the surface of the rubber sleeve is engraved with anti-slip patterns, so as to avoid the fixing ring 11 from damaging the patient's endometrium when cutting polyps, and to prevent the polyps from slipping out of the fixing ring 11 after being covered, thereby improving the safety of removing endometrial polyps.

[0029] The fixing ring 11 is provided with a guide groove 111 inside, and the removal knife 12 is slidably installed inside the guide groove 111; a differential block 112 is provided at the rear end of the guide groove 111; the differential block 112 is a Y-shaped structure. During the cutting process, the removal knife 12 can be driven to move along the guide groove 111 by pulling the operating ring 13 to achieve the same direction action, which is convenient for cutting off the endometrial polyps and removing the endometrial polyps.

[0030] The bottom surface of the removal knife 12 is coplanar with the bottom surface of the fixing ring 11. The polyp is connected to the bottom end to cut, avoiding incomplete cutting of the polyp, causing repeated cutting, increasing the pain of the patient, and prolonging the operation time.

[0031] The two sides of the removal knife 12 are provided with pulling wires 121 connected to the side walls of the differential block 112; the ends of the pulling wires 121 are fixedly connected to the traction wires 14. The pulling wires 121 can be limited to prevent the pulling wires 121 from falling out of the guide grooves 111, resulting in failure to smoothly cut the polyp, and at the same time, prevent the pulling wires 121 from scratching the patient's endometrial wall during the pulling process, thereby causing damage.

[0032] The collecting pocket 21 is a hollow structure; an isolation membrane 211 is arranged inside the collecting pocket 21; and the suction hole 22 and the pipe 25 do not penetrate the isolation membrane 211. The polyps that have fallen off after cutting can be collected, and the negative pressure of the suction hole 22 can be used to fasten and absorb the fallen polyps, so as to avoid the polyps falling off from the collecting pocket 21 during the removal process, causing polyp residues and affecting the patient's recovery; at the same time, the internal fluid of the uterus will not enter the pipe 25 to damage the negative pressure device 23 during the absorption.

[0033] The isolation membrane 211 is a medical waterproof breathable membrane, so that during the adsorption process, the negative pressure attraction force generated by the negative pressure device 23 is transmitted to the suction hole 22 without causing the liquid inside the uterus to enter the pipe 25 and damage the negative pressure device 23 .

[0034] Example 2

[0035] The negative pressure device 23 of the utility model adopts a micro negative pressure device with its own power supply and switch, such as a combination of a micro pump and a button battery of Hailin brand model D08;

[0036] The isolation membrane 211 of the utility model adopts a waterproof and breathable membrane type that is breathable but not water-permeable, which can prevent waste liquid from entering the negative pressure device 23 through the pipe 25 and damaging the negative pressure equipment, and at the same time prevent bacteria from entering the hydrophobic filter membrane inside the collection bag 21 through the pipe 25.

[0037] Example 3

[0038] Working principle: When using the utility model, medical staff can insert the removal device into the patient's uterine cavity using a hysteroscope, so that the fixing ring 11 and the collecting bag 21 are close to the patient's polyp to be removed, and then put the fixing ring 11 into the patient's uterine cavity where the polyp is to be removed and make the bottom end of the fixing ring 11 contact with the inner wall of the patient's uterine cavity, so that the removal knife 12 coplanar with the bottom surface of the fixing ring 11 is in contact with the inner wall of the patient's uterine cavity, ensuring that the polyp can be removed along the inner wall of the uterine cavity during removal, avoiding multiple cutting, and at the same time placing the collecting bag 21 just below the polyp and turning on the negative pressure device 23 to make the suction The guide hole 22 generates negative pressure suction. Under the action of the isolation membrane 211, while ensuring the generation of negative pressure suction, the liquid in the uterine cavity cannot enter the interior of the pipe 25, and will not cause pollution to the negative pressure device 23 and the pipe 25; then operate the operating ring 13 to drive the removal knife 12 to remove the polyp. At this time, under the action of gravity, the fallen polyp falls into the collection bag 21. Under the negative pressure suction generated by the suction hole 22, the polyp is firmly adsorbed inside the collection bag 21. At this time, the collection bag 21 with the polyps collected can be taken out from the puncture incision together with the endoscope.

Claims

1. A polyp removal device, comprising a removal rod (1) and a removal rod (2) hinged to each other, characterized in that: The front end of the removal rod (1) is provided with a fixed ring (11), and a removal knife (12) is slidably mounted inside the fixed ring (11), and the removal knife (12) is connected to an operating ring (13) arranged at the end of the removal rod (1) through a traction wire (14); the middle part of the removal rod (2) is rotatably connected to the middle part of the removal rod (1), a collection bag (21) is arranged at the front end of the removal rod (2), suction holes (22) are equidistantly distributed on the inner wall of the collection bag (21), a negative pressure device (23) is installed on the rear end side wall of the removal rod (2), the negative pressure device (23) is connected to the collection bag (21) through a pipeline (25), and a control ring (24) is arranged on the rear end side wall of the removal rod (1) and the removal rod (2).

2. A polyp removal device according to claim 1, characterized in that: The surface of the fixing ring (11) is wrapped with a rubber sleeve, and the surface of the rubber sleeve is engraved with anti-slip patterns.

3. A polyp removal device according to claim 1, characterized in that: A guide groove (111) is provided inside the fixing ring (11), and the removal knife (12) is slidably mounted inside the guide groove (111); a differential block (112) is provided at the rear end of the guide groove (111); and the differential block (112) is a Y-shaped structure.

4. A polyp removal device according to claim 1, characterized in that: The bottom surface of the removal knife (12) is coplanar with the bottom surface of the fixing ring (11).

5. A polyp removal device according to claim 1, characterized in that: Pulling wires (121) connected to the side walls of the differential block (112) are arranged on both sides of the removal knife (12); the ends of the pulling wires (121) are fixedly connected to the traction wire (14).

6. A polyp removal device according to claim 1, characterized in that: The collecting bag (21) is a hollow structure; an isolation membrane (211) is arranged inside the collecting bag (21); and the suction hole (22) and the pipeline (25) do not penetrate the isolation membrane (211).

7. A polyp removal device according to claim 6, characterized in that: The isolation membrane (211) is a waterproof and breathable membrane.

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