Removing device for residual titanium clip under endoscope

Abstract

The invention discloses a device for removing a residual titanium clip under an endoscope. The device comprises an operating handle, an outer sleeve, an inner sleeve and a rotating handle, the outer sleeve is movably mounted at the front end of the operating handle, and the inner sleeve is sleeved with the outer sleeve; the front-back movement of the outer sleeve is controlled by rotating the rotating handle to control the movement of the opening and closing head, the front end of the titanium clip can be extruded open in an extrusion mode, a traditional direct pulling-out mode is replaced, and damage to internal tissue can be reduced to a great extent while the titanium clip is pulled out; and through fixing of the air bag, the pulled-out titanium clamps can be removed, the whole device does not need to be taken out for multiple times and then placed in, and when multiple detained titanium clamps exist, the titanium clamps can be continuously taken out. The loosened titanium clamp can be directly taken out through the taking-out pipe, and convenience and practicability are achieved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to a device for removing residual titanium clips under endoscopy. Background Technology

[0002] Titanium clips are medical devices, typically made of medical-grade titanium alloy. Medical-grade titanium alloys have good biocompatibility, do not cause adverse reactions such as immune responses or allergies in the human body, and possess sufficient strength and toughness to meet clinical needs. Titanium clips are shaped like clamps and are generally inserted into the body through an endoscopic instrument channel, where they are released by a specialized device.

[0003] Titanium clips play a crucial role in the removal and treatment of gastrointestinal polyps. During polyp removal, titanium clips can accurately clamp bleeding vessels, quickly and effectively stopping bleeding and preventing serious complications such as hemorrhagic shock caused by excessive bleeding. After polyp removal, a wound is left on the gastrointestinal mucosa. Titanium clips can clamp the edges of this wound, promoting healing and reducing the occurrence of postoperative complications such as perforation and bleeding. Titanium clips typically detach naturally after a period of time, but some may detach slowly or not at all for several years. Prolonged failure to detach can cause tympanic membrane damage, bleeding, and even perforation. Therefore, titanium clips that do not detach for an extended period often require surgical removal. The commonly used method is direct endoscopic removal, a forceful process. While it removes the clips, this procedure often causes tissue sprains and rebleeding, and therefore has certain drawbacks.

[0004] Therefore, a device for removing residual titanium clips under endoscopy is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention presents a device for removing residual titanium clips under endoscopy. This device can remove titanium clips that have been retained in the gastrointestinal tract for an extended period. During removal, the clips are pulled out by spreading both ends, minimizing damage to internal tissues while ensuring effective removal. Furthermore, the device includes a retrieval structure to remove the clips without requiring repeated removal and reinsertion of the entire device. When multiple clips remain, they can be removed continuously.

[0006] To achieve the above-mentioned technical effects, this invention discloses a device for removing residual titanium clips under endoscopy, comprising: an operating handle, an outer sleeve, an inner sleeve, and a rotating handle; the outer sleeve is movably mounted at the front end of the operating handle, and the inner sleeve is sleeved inside the outer sleeve; the rotating handle is movably mounted at the rear end of the operating handle and its front end is connected to the outer sleeve; a fixing rod is also provided on the outer side wall of the inner sleeve, and the fixing rod is connected to the inner side wall of the operating handle; a square through groove is opened at the front end of the inner sleeve, and an opening and closing head is movably mounted on the square through groove; by rotating the rotating handle, the forward and backward movement of the outer sleeve is controlled, and the forward or reverse rotation of the opening and closing head is controlled to expand and remove the titanium clip;

[0007] Furthermore, the opening and closing head is an arc-shaped four-sided conical structure, composed of two arc surfaces, an upper arc surface, and a front arc surface; the two sides of the upper arc surface are adjacent to the two arc surfaces, and the front end of the side arc surfaces is adjacent to the front arc surface; the two arc surfaces gradually close and connect from one side of the front arc surface to the other side; the distance between the front arc surfaces gradually decreases from one side of the upper arc surface downwards; and each arc surface arches outwards.

[0008] Furthermore, the lower end of the opening and closing head extends toward the extraction tube side and its length is less than the radius of the inner sleeve;

[0009] Furthermore, the inner sleeve is provided with an inflation channel, and an airbag is fixedly provided at the front end of the inflation channel. An external inflation device can be connected to the outside of the inflation channel.

[0010] Furthermore, the rotating handle and the outer sleeve are movable and limited in their connection;

[0011] Furthermore, both the outer sleeve and the inner sleeve are made of elastic, flexible material.

[0012] The beneficial effects of this invention are:

[0013] This invention designs a device for removing residual titanium clips under endoscopy, comprising: an operating handle, an outer sleeve, an inner sleeve, and a rotating handle; the outer sleeve is movably mounted at the front end of the operating handle, and the inner sleeve is fitted inside the outer sleeve; rotating the rotating handle controls the back-and-forth movement of the outer sleeve, which in turn controls the movement of the opening and closing head, enabling the front end of the titanium clip to be squeezed open, replacing the traditional direct removal method, and greatly reducing damage to internal tissues during removal; the device is fixed by an airbag, allowing for the removal of the pulled-out titanium clip without repeatedly removing and reinserting the entire device; when multiple titanium clips are retained, they can be removed continuously. The loosened titanium clip can be directly removed through the removal tube, making it convenient and practical. (See attached figures)

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of a device for removing residual titanium clips under endoscopy;

[0016] Figure 2 This is a magnified view of a device for removing residual titanium clips under endoscopy.

[0017] Figure 3 This is a cross-sectional view of a device for removing residual titanium clips under endoscopy.

[0018] Figure 4 This is a schematic diagram of the opening and closing head of a device for releasing residual titanium clips under endoscopy;

[0019] Figure 5 This is a structural diagram of an existing titanium clip.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1-Operating handle, 2-Outer sleeve, 3-Inner sleeve, 31-Square through groove, 32-Fixing rod, 4-Rotating handle, 41-Ring, 5-Inflation channel, 51-Airbag, 6-Opening and closing head, 61-Upper arc surface, 62-Front arc surface, 63-Side arc surface. Detailed Implementation

[0022] Example 1

[0023] An endoscopic device for removing residual titanium clips includes: an operating handle, an outer sleeve, an inner sleeve 3, and a rotating handle 4; the outer sleeve is movably mounted at the front end of the operating handle, and the inner sleeve 3 is fitted inside the outer sleeve; the rotating handle 4 is movably mounted at the rear end of the operating handle and its front end is connected to the outer sleeve; a fixing rod 32 is also provided on the outer side wall of the inner sleeve 3, and the fixing rod 32 is connected to the inner side wall of the operating handle; a square through groove 31 is opened at the front end of the inner sleeve 3, and an opening and closing head 6 is movably mounted on the square through groove 31, and the opening and closing head 6 on the square through groove 31 is connected by a rotating shaft, and a torsion spring is provided on the rotating handle; by rotating the rotating handle 4, the forward and backward movement of the outer sleeve is controlled to control the forward or reverse rotation of the opening and closing head 6 to expand and remove the titanium clip; at the same time, in this embodiment, since the titanium clip has a clip-type structure at the front end and a hollow structure at the rear end within a certain depth after separation (part of the titanium clip structure is as follows). Figure 5 As shown in the figure, the titanium clamp is in the open and closed states; the rotating handle 4 and the outer sleeve are movable and limitedly connected; the specific connection method is a sleeve connection, and it is movablely installed. Specifically, when rotating, the rotating handle 4 is a threaded connection; the forward and backward movement of the outer sleeve is controlled by the rotation of the thread. At the same time, both the outer sleeve and the inner sleeve 3 are made of elastic and flexible materials.

[0024] In use, firstly, the outer sleeve is controlled to move forward. During this movement, under the action of rotating handle 4, the outer sleeve moves, and the opening / closing head 6 gradually rotates and enters the interior of the titanium clip's clamping arm. Then, as the opening / closing head 6 moves, the titanium clip is separated, allowing it to detach from the gastrointestinal tract. Simultaneously, in this embodiment, due to the structural characteristics of the titanium clip, after closing, it causes prolonged clamping of the structure onto the tissue, and gaps and relative spaces exist between the clamping arms. Therefore, to address this characteristic, in this embodiment, the opening / closing head 6 is configured as a four-sided conical structure with an arc-shaped surface 62, composed of two side arc-shaped surfaces 63, an upper arc-shaped surface 61, and a front arc-shaped surface 62. The two sides of the upper arc surface 61 are adjacent to the two side arc surfaces 63. The two side arc surfaces 63 are mainly used to directly contact the inner side of the clamping arm of the titanium clamp. They need to have several characteristics. First, they must be able to withstand the clamping force of the titanium clamp. Second, they need to be able to smoothly enter the inside of the clamping arm during use. Therefore, the front end of the side arc surface 63 is adjacent to the front arc surface 62. The two side arc surfaces 63 gradually close and connect from one side of the front arc surface 62 to the other side. The distance between the front arc surfaces 62 gradually decreases from one side of the upper arc surface 61 downwards. And each arc surface 62 arches outwards. The outward arching setting gives it excellent compressive strength. Through the closure of the front arc surface 62, its end becomes a tip, which can smoothly enter the inner side of the closed clamping arm of the titanium clamp. In order to increase the force during release, since a single setting may not be able to open the residual titanium clip, the opening and closing head 6 can be stacked on both sides of the square through groove 31. The double-sided setting increases the force during release. At the same time, in this embodiment, the opening and closing head 6 is a solid structure, which can be made of titanium alloy or stainless steel. This ensures both hardness and usability.

[0025] Example 2

[0026] In this embodiment, based on the opening / closing head 6 described in Embodiment 1, since the opening / closing head 6 is rotatably connected inside the inner sleeve 3, it needs to ensure that it does not abut against the other inner wall of the inner sleeve 3 after rotation. Therefore, the lower end of the opening / closing head 6 is extended towards the extraction tube side with a length less than the radius of the inner sleeve 3. This ensures the position of the opening / closing head 6 after rotation.

[0027] In addition, in order to smoothly remove the titanium clip when the opening and closing head 6 is removed in this embodiment, and to remove it continuously, an inflation channel 5 is provided inside the inner sleeve 3, and an airbag 51 is fixedly provided at the front end of the inflation channel 5. An external inflation device can be connected to the outside of the inflation channel 5.

[0028] The inflation of the airbag 51 allows the titanium clip to be secured, enabling it to be removed during the removal process. The next titanium clip can then be removed. In this embodiment, the airbag 51 is positioned at the end of the inflation channel 5; its front end is used to directly contact the bottom of the titanium clip's interior. This allows the operator to intuitively feel that the channel has reached the inside of the clip, facilitating direct operation. Simultaneously, the inflation channel 5 can be connected to an external inflation device for continuous inflation. The inflation device and inflation control methods described in this embodiment are existing technologies and will not be elaborated upon further here.

[0029] In summary, this invention can remove titanium clips that have been lodged in the gastrointestinal tract for a long time. During removal, the two ends of the titanium clip are opened up, which greatly reduces damage to internal tissues while removing the clip. In addition, this invention is equipped with corresponding inflation channels 5 and air bladders 51, which can remove the titanium clips without having to remove and reinsert the entire device multiple times. When there are multiple titanium clips lodged, they can be removed continuously.

[0030] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described.

Claims

1. A device for removing residual titanium clips under endoscopy, characterized in that, include: The device comprises an operating handle, an outer sleeve, an inner sleeve, and a rotating handle. The outer sleeve is movably mounted on the front end of the operating handle, and the inner sleeve is fitted inside the outer sleeve. The rotating handle is movably mounted on the rear end of the operating handle and its front end is connected to the outer sleeve. A fixing rod is also provided on the outer side wall of the inner sleeve, and the fixing rod is connected to the inner side wall of the operating handle. A square through groove is opened at the front end of the inner sleeve, and an opening and closing head is movably mounted on the square through groove. By rotating the rotating handle, the forward and backward movement of the outer sleeve is controlled, and the forward or reverse rotation of the opening and closing head is controlled to expand and remove the titanium clip.

2. The device for removing residual titanium clips under endoscopy according to claim 1, characterized in that, The opening and closing head is an arc-shaped four-sided cone structure, consisting of two arc surfaces, an upper arc surface, and a front arc surface. The two sides of the upper arc surface are adjacent to the two arc surfaces, and the front end of the side arc surfaces is adjacent to the front arc surface. The two arc surfaces gradually close and connect from one side of the front arc surface to the other side. The distance between the front arc surfaces gradually decreases from one side of the upper arc surface downwards. And each arc surface arches outwards.

3. The device for removing residual titanium clips under endoscopy according to claim 1, characterized in that, The lower end of the opening and closing head extends toward the side of the extraction tube and its length is less than the radius of the inner sleeve.

4. The device for removing residual titanium clips under endoscopy according to claim 1, characterized in that, The inner sleeve has an inflation channel inside, and an airbag is fixedly installed at the front end of the inflation channel. An external inflation device can be connected to the outside of the inflation channel.

5. The device for removing residual titanium clips under endoscopy according to claim 1, characterized in that, The rotating handle and the outer sleeve are movable and limited in their connection.

6. The device for removing residual titanium clips under endoscopy according to claim 1, characterized in that, Both the outer sleeve and the inner sleeve are made of elastic, flexible material.

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