Disposable recoverable duodenal papilla expansion device

Abstract

The utility model relates to the technical field of duodenum, and provides a disposable recoverable duodenal papilla expansion device which comprises an outer sleeve 1, the outermost end of the outer sleeve 1 is fixedly connected with a head puncture end 11, the inner side wall of the outer sleeve 1 is connected with an inner sleeve 2 in a sliding mode, and the outer side wall of the inner sleeve 2 is provided with a net-shaped supporting pipe 21. The outermost end of the inner sleeve 2 is fixedly connected with a connecting handle 22, the outermost end of the net-shaped supporting pipe 21 is provided with a connecting pull rope 23, and the connecting position of the connecting pull rope 23 and the net-shaped supporting pipe 21 is annularly arranged on the inner side of one end of the net-shaped supporting pipe 21 in a sleeving mode. The outer sleeve and the inner sleeve are separated from the inner side and the outer side of the net-shaped supporting tube, the net-shaped supporting tube is retained in the human body, at the moment, the net-shaped supporting tube expands due to elasticity, duodenum nipples are opened, after an operation is completed, the connecting pull rope is pulled to drive the net-shaped supporting tube to contract, the head end of the net-shaped supporting tube becomes small, and the operation is completed. And the device can be conveniently separated from the body.

Description

Technical Field

[0001] This utility model relates to the field of duodenal technology, specifically a disposable recyclable duodenal papilla dilator. Background Technology

[0002] In the medical field, particularly in digestive endoscopic surgery, duodenal papilla dilation is a common treatment method used to address various clinical needs such as duodenal papilla stenosis, bile duct stone removal, and biliary drainage. Traditional methods of duodenal papilla dilation often rely on mechanical dilators or balloon dilators. While these methods can meet surgical requirements to some extent, they have several limitations, including but not limited to high operational complexity, low patient comfort, a higher risk of complications, and the potential for cross-infection from reusable instruments.

[0003] Traditional dilators often lack sufficient flexibility and adaptability, making them difficult to retract after dilation, which can negatively impact surgical outcomes and patient recovery. Furthermore, some instruments, due to design limitations, pose a higher risk of damage to surrounding tissues during surgery, increasing the incidence of postoperative complications.

[0004] To address these issues, those skilled in the art have proposed a disposable, recyclable duodenal papilla dilator to resolve the problems raised in the background art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a disposable recyclable duodenal papilla dilator, which uses a mesh-structured support tube as the main dilator element to realize the release and contraction of the support tube, making it easier to prevent and remove the support tube.

[0006] A disposable recyclable duodenal papilla dilator includes an outer sleeve, with a head puncture end fixedly connected to the outermost end of the outer sleeve, an inner sleeve slidably connected to the inner side wall of the outer sleeve, a mesh support tube installed on the outer side wall of the inner sleeve, and a connecting handle fixedly connected to the outermost end of the inner sleeve.

[0007] Preferably, a connecting rope is installed at the outermost end of the mesh support tube. The connection between the connecting rope and the mesh support tube is a ring-shaped arrangement on the inner side of one end of the mesh support tube. The mesh support tube is mesh-like and has elasticity. Pulling the connecting rope can reduce the diameter of the mesh support tube.

[0008] Preferably, the outer sleeve is fitted onto the outer wall of the mesh support tube to limit the movement of the mesh support tube.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. By separating the outer sleeve from the inner sleeve from the inside and outside of the mesh support tube, the mesh support tube is left inside the body. At this time, the mesh support tube will expand due to its elasticity, opening the duodenal papilla. After the operation, by pulling the connecting rope, the connecting rope will cause the mesh support tube to contract, making the end of the mesh support tube smaller, so that it can be easily removed from the body. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This utility model Figure 1 A schematic diagram of the exploded structure in the image;

[0013] Figure 3 This utility model Figure 2 A schematic diagram of the structure of the central mesh support tube.

[0014] In the diagram: 1. Outer sleeve; 11. Head puncture end; 2. Inner sleeve; 21. Mesh support tube; 22. Connecting handle; 23. Connecting pull rope. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] As attached Figure 1 To be continued Figure 3 As shown:

[0017] Example 1: According to Figure 1-3 As shown, this utility model provides a disposable recyclable duodenal papilla dilator, including an outer sleeve 1. The outermost end of the outer sleeve 1 is fixedly connected to a head puncture end 11. An inner sleeve 2 is slidably connected to the inner side wall of the outer sleeve 1. A mesh support tube 21 is installed on the outer side wall of the inner sleeve 2. A connecting handle 22 is fixedly connected to the outermost end of the inner sleeve 2. Through the elastic elements at both ends of the mesh support tube 21, after the mesh support tube 21 is released from its limiting position, both ends can expand and be opened up to facilitate surgery.

[0018] The outermost end of the mesh support tube 21 is equipped with a connecting pull rope 23. The connection between the connecting pull rope 23 and the mesh support tube 21 is a ring-shaped sleeve on the inner side of one end of the mesh support tube 21. The mesh support tube 21 is mesh-like and has elasticity. Pulling the connecting pull rope 23 can reduce the diameter of the mesh support tube 21. The outer sleeve 1 is sleeved on the outer wall of the mesh support tube 21 to limit the mesh support tube 21. With the connecting pull rope 23 on the outside of the mesh support tube 21, it is easy to pull the expanded mesh support tube 21 to shrink it. The shrunken mesh support tube 21 is easy to remove from the patient's body.

[0019] Working principle: When this device is needed, first extend the assembled device to the position where the duodenal papilla needs to be expanded, then pull the connecting handle 22 to let the connecting handle 22 and the inner sleeve 2 come out from the mesh support tube 21. Next, pull the outer sleeve 1 and the head puncture end 11 out from the outside of the mesh support tube 21 to release the restriction on the mesh support tube 21. Then the mesh support tube 21 opens and expands the duodenal papilla. After the operation is completed, pull the connecting rope 23 to make the connecting rope 23 contract so that the mesh support tube 21 can be dislodged.

[0020] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0021] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disposable and recyclable duodenal papilla dilating device, characterized by: The device includes an outer sleeve (1), the outermost end of which is fixedly connected to a head puncture end (11), the inner sidewall of which is slidably connected to an inner sleeve (2), the outer sidewall of which is fitted with a mesh support tube (21), the outermost end of which is fixedly connected to a connecting handle (22), the outermost end of which is fitted with a connecting pull rope (23), the connection point of which is connected to the mesh support tube (21) is annularly fitted inside one end of the mesh support tube (21), the mesh support tube (21) is mesh-like and has elasticity, and the pull of the connecting pull rope (23) can reduce the diameter of the mesh support tube (21).

2. The disposable and recyclable duodenal papilla dilating device according to claim 1, wherein: The outer sleeve (1) is fitted onto the outer wall of the mesh support tube (21) to limit the mesh support tube (21).

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