Foreign body snare extractor with pocket
By designing a foreign object snail take-up device with a bag, using shape memory materials and transparent membrane bags, the problem of difficulty in grasping and removing foreign objects in the digestive tract is solved in the prior art, and the foreign object removal process that effectively protects the digestive tract mucosa is realized.
Patent Information
- Application Number
- CN202421822603.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The prior art is difficult to effectively grasp and remove foreign objects such as smooth, large, hard, fine and sharp or living objects in the digestive tract, and it is easy to cause mucosal damage and bleeding during the removal process.
A foreign object snail with a bag is designed, using a ring and a transparent membrane pocket made of shape memory material. The foreign object is directly taken by opening the ring, and after tightening, the foreign object is completely wrapped in the transparent membrane pocket and taken out with the endoscope.
This device can effectively escap and protect large, smooth, sharp foreign objects, prevent mucosal damage and bleeding, and further protect the digestive tract mucosa through lubricant during the removal process.
Smart Images
Figure CN222983136U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to medical equipment, and in particular relates to a foreign body snare extractor with a pocket. Background Art
[0002] Foreign bodies in the digestive tract refer to various objects that are accidentally or intentionally swallowed into the digestive tract. They are common emergencies and include bones, coins, needles, dentures, batteries, etc., which often need to be removed under endoscopy. Removal instruments include foreign body forceps, stone removal baskets, etc. However, objects with smooth surfaces, large and hard objects, small and sharp objects, and even living objects (such as lobsters) are difficult to grasp and are easy to fall off when grasped; in addition, sharp and large objects are easy to fall off or cause mucosal damage and bleeding when passing through narrow parts of the digestive tract, such as the cardia, narrow part of the esophagus, throat, anus, etc. during the removal process, which brings clinical problems. Utility Model Content
[0003] The utility model provides a foreign body snare extractor with a pocket. A transparent film pocket is covered on the circular ring of the snare. When removing foreign bodies from the intestinal tract, the metal ring is first opened to directly pocket the foreign bodies, or the metal ring is covered on the foreign bodies, and then the circular ring is tightened so that the foreign bodies are wrapped in the transparent film pocket and then taken out with an endoscope.
[0004] To solve the above problems, the technical solutions provided by the present invention are as follows:
[0005] The utility model provides a foreign body snare extractor with a pocket, comprising a push-pull rod (1), a first finger ring (2) is arranged at the top of one end of the push-pull rod (1), a second finger ring (3) and a third finger ring (4) are arranged on both sides of one end of the push-pull rod (1), and a fixed pulley (10) is fixed to the push-pull rod (1) via two brackets (11);
[0006] The other end of the push-pull rod (1) is connected to a sleeve (5), the sleeve (5) is connected to a first telescopic rod (6), and the end of the first telescopic rod (6) is connected to a second telescopic rod (7); the push-pull rod (1), the sleeve (5), the first telescopic rod (6), and the second telescopic rod (7) are all hollow structures;
[0007] A bendable rigid member (9) is wound around the fixed pulley (10), and the bendable rigid member (9) is connected to a snare (8) through the inner hole of the hollow structure. The snare (8) comprises a circular ring (8-1) of shape memory material and a transparent film bag (8-2) connected to the circular ring.
[0008] According to an optional embodiment of the utility model, the material of the transparent film pocket (8-2) is a transparent flexible material, and the shape memory material is a shape memory polymer SMP.
[0009] According to an optional embodiment of the utility model, the bendable rigid member (9) is a copper wire or a steel wire.
[0010] Compared with the prior art, the embodiment of the utility model provides a foreign body snare extractor with a pocket, which has the following beneficial effects: compared with foreign body forceps, the utility model can extract larger and smooth foreign bodies. In addition, compared with stone removal baskets and snares, larger and sharp objects are easy to damage the mucosa when they are removed, while the utility model can completely wrap the foreign body, and a lubricant can be applied on the transparent film pocket to protect the digestive tract mucosa during the removal process. In addition, for thinner and sharp objects such as needles, the transparent film pocket is not easy for the sharp part to pass out of the pocket, thereby protecting the mucosa. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.
[0012] Figure 1 A schematic structural diagram of a foreign body snare extractor with a pocket is provided for an embodiment of the present application.
[0013] Figure 2 A schematic structural diagram of an open snare with a pocket for foreign body snare extractor is provided for an embodiment of the present application.
[0014] Figure 3 A schematic structural diagram of a closed snare with a pocket for extracting foreign body snares is provided for an embodiment of the present application.
[0015] Figure 4 A schematic diagram of a foreign body snare extractor with a pocket is provided for the present application, in which a foreign body is captured into a transparent film pocket after being tightened. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0017] like Figure 1 , Figure 2 and Figure 3As shown in the figure, an embodiment of the present utility model provides a foreign body snare extractor with a pocket, which includes a push-pull rod 1. At the top of one end of the push-pull rod 1, a first finger ring 2 is provided. On both sides of one end of the push-pull rod 1, a second finger ring 3 and a third finger ring 4 are respectively provided. The push-pull rod 1 is fixed with a fixed pulley 10 through two brackets 11. The other end of the push-pull rod 1 is connected with a sleeve 5. The sleeve 5 is connected with a first telescopic rod 6. The end of the first telescopic rod 6 is connected with a second telescopic rod 7. The push-pull rod 1, the sleeve 5, the first telescopic rod 6, and the second telescopic rod 7 are all of hollow structure. The first telescopic rod 6 can move into the inside of the sleeve 5, and the second telescopic rod 7 can move into the first telescopic rod 6.
[0018] A bendable rigid member 9 is wound around the fixed pulley 10. The bendable rigid member 9 passes through the inner hole of the hollow structure and is connected with a snare 8. The snare 8 includes a ring 8-1 made of shape memory material and a transparent film pocket 8-2 connected to the ring. Rotating the fixed pulley 10 can take in or release the length of the bendable rigid member 9, so as to realize the opening or closing of the snare 8. Figure 3 In the middle, the snare 8 can be retracted into the second telescopic rod 7.
[0019] Preferably, the material of the transparent film pocket 8-2 is a flexible material, and the shape memory material is a shape memory polymer SMP. The bendable rigid member 9 is a copper wire or a steel wire.
[0020] As Figure 4 shown, a layer of transparent film pocket 8-2 is connected to the ring 8-1 of the snare. When removing a foreign body 12 in the digestive tract, first open the ring 8-1, which can directly scoop it up, or cover it above the foreign body 12, and then tighten the ring 8-1 so that the foreign body 12 is wrapped in the transparent film pocket 8-2, and then it is taken out along with the endoscope. The present utility model can completely wrap the foreign body, and a lubricant can be applied to the transparent film pocket. The digestive tract mucosa is protected during the removal process. In addition, for relatively thin and sharp objects such as needles, the transparent film pocket is not easy to make the sharp part pierce out of the pocket, protecting the mucosa.
[0021] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, any modification, equivalent replacement, and improvement made within the spirit and principle of the present utility model should be covered within the protection scope of the present utility model; those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be determined by the scope defined by the claims.
Claims
1. A foreign body snare extractor with pocket, characterized in that: It comprises a push-pull rod (1), a first finger ring (2) is arranged at the top of one end of the push-pull rod (1), a second finger ring (3) and a third finger ring (4) are arranged on both sides of one end of the push-pull rod (1), and a fixed pulley (10) is fixed to the push-pull rod (1) via two brackets (11); The other end of the push-pull rod (1) is connected to a sleeve (5), the sleeve (5) is connected to a first telescopic rod (6), and the end of the first telescopic rod (6) is connected to a second telescopic rod (7); the push-pull rod (1), the sleeve (5), the first telescopic rod (6), and the second telescopic rod (7) are all hollow structures; A bendable rigid member (9) is wound around the fixed pulley (10), and the bendable rigid member (9) is connected to a snare (8) through the inner hole of the hollow structure. The snare (8) comprises a circular ring (8-1) of shape memory material and a transparent film bag (8-2) connected to the circular ring.
2. A foreign body snare extractor with pocket according to claim 1, characterized in that: The material of the transparent film pocket (8-2) is a transparent flexible material, and the shape memory material is a shape memory polymer SMP.
3. The foreign body snare extractor with pocket according to claim 2, characterized in that: The bendable rigid member (9) is a copper wire or a steel wire.