Bag for taking out specimen under endoscope

Abstract

The utility model provides a bag for taking out a specimen under an endoscope. The bag comprises an outer tube body, an inner insertion rod and a bag body, a long-strip-shaped notch is formed in the lower side of the second end of the outer pipe body. The inner inserting rod can be installed in the outer pipe body in a sliding mode. A handle is fixed to the first end of the inner inserting rod and located outside the first end of the inner inserting rod. An elastic frame is fixed to the second end of the inner inserting rod and is in a shuttle shape. The bag body is made of a plastic film with a closed bottom end and an open upper end; the edge of the upper end opening of the bag body is fixed on the elastic frame; when the inner inserting rod is in the stretching-out state, the bag body and the elastic frame are located outside the second end of the outer pipe body; when the inner inserting rod is in a retraction state, the elastic frame is flattened and then contracts into the outer pipe body, and the upper portion of the bag body is contained in the long-strip-shaped notch.

Description

Technical Field

[0001] The present application relates to digestive endoscopy accessories, and in particular to an endoscopic specimen retrieval bag. Background Art

[0002] Endoscopic retrograde cholangiopancreatography (ERCP) is the preferred treatment for common bile duct stones. In recent years, more and more studies have been conducted on the biliary microecology of patients with common bile duct stones. Currently, most studies are limited to bile samples, and there are fewer studies on common bile duct stone samples. This is related to the difficulty of obtaining common bile duct stone samples under endoscopy. At present, for large and hard common bile duct stones, after successful stone removal with a stone basket during ERCP, the stone basket is tightened and the endoscope is directly withdrawn to remove the common bile duct stones through the patient's mouth. Some common bile duct stones are fragile or muddy, and it is difficult to remove them orally with the assistance of a stone basket. There is even the possibility that the stones will fall off in the oropharynx and be aspirated. This type of stone specimen can first be removed with a stone basket or a stone balloon. After successful stone removal, the stone is first placed next to the duodenal papilla, and then removed orally with a net-shaped endoscopic grasper. After the common bile duct stone specimen is taken out, it is first rinsed with sterile water to remove the surface bile and intestinal fluid before subsequent research. The common bile duct stone sample needs to pass through the digestive tract and mouth during the removal process, and there is a risk of contamination by the upper digestive tract and mouth, which may interfere with subsequent research results. At present, the sample collection basket used with the endoscope has the risk of contamination of the specimen by the digestive tract and mouth. Utility Model Content

[0003] In view of the above problems, the present application aims to propose an endoscopic specimen retrieval bag, which can effectively reduce the risk of contamination by the digestive tract and oral cavity during specimen retrieval.

[0004] The endoscopic specimen retrieval bag of the present application comprises: an outer tube body, an inner insertion rod, and a bag body;

[0005] A long strip-shaped notch is formed on the lower side of the second end of the outer tube body;

[0006] The inner rod can be slidably installed in the outer tube body; a handle is fixed on the first end of the inner rod, and the handle is located outside the first end of the inner rod; an elastic frame is fixed on the second end of the inner rod, and the elastic frame is formed in a shuttle shape;

[0007] The bag body is made of a plastic film, with a closed bottom and an open top; the edge of the upper opening of the bag body is fixed on the elastic frame;

[0008] When the inner rod is in an extended state, the bag body and the elastic frame are located outside the second end of the outer tube body; when the inner rod is in a retracted state, the elastic frame is flattened and retracted into the outer tube body, and the upper part of the bag body is received in the long strip-shaped notch.

[0009] Preferably, a wing plate is integrally formed on the outer side of the handle.

[0010] Preferably, the wing plate and the elastic frame are on the same horizontal plane.

[0011] Preferably, a guide angle is formed at the second end of the long strip-shaped notch.

[0012] After obtaining the specimen, the endoscopic specimen retrieval bag of the present application retracts back into the outer tube body. The bag body is clamped in the long strip-shaped notch, and the outer tube body and the inner insertion rod are rotated integrally, so that a part of the upper part of the bag body is wound around the outer periphery near the second end of the outer tube body. The specimen is relatively enclosed in the bag body, effectively avoiding contamination of the specimen during the retrieval process. Description of the Drawings

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the bag body of the endoscopic specimen retrieval bag of the present application extending and opening;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the bag body of the endoscopic specimen retrieval bag of the present application after retraction;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the outer tube of the endoscopic specimen retrieval bag of the present application;

[0016] Figure 4 is Figure 3 the upward view structural schematic diagram of the outer tube body;

[0017] Figure 5 、 6 It is a three-dimensional structural schematic diagram of the inner insertion rod of the endoscopic specimen retrieval bag of the present application. Detailed Description of the Invention

[0018] Next, the endoscopic specimen retrieval bag of the present application will be described in detail with reference to the accompanying drawings.

[0019] The endoscopic specimen retrieval bag of the present application includes: an outer tube body 1, an inner insertion rod 2, and a bag body 3.

[0020] A long strip-shaped notch 12 is formed on the lower side of the second end of the outer tube body 1; an operating tube 11 for easy operation is formed at the first end of the outer tube body 1.

[0021] The inner insertion rod 2 is slidably installed in the outer tube body 1; a handle 21 is fixed to the first end of the inner insertion rod 2, and the handle 21 is located outside the first end of the inner insertion rod 2; an elastic frame 22 is fixed to the second end of the inner insertion rod 2, and the elastic frame 22 is formed in a shuttle shape.

[0022] The bag body 3 is made of a plastic film or a nylon material, with the bottom end closed and the upper end open; the edge of the upper end opening of the bag body 3 is integrally fixed to the elastic frame 22.

[0023] When the insertion rod 2 is in the extended state, as Figure 1 shown, the bag body 3 and the elastic frame 22 are located outside the second end of the outer tube body 1, and the upper end opening of the bag body is supported by the elastic frame 22 and is in an open state; when the insertion rod 2 is in the retracted state, as Figure 2 shown, the elastic frame 22 is flattened and then contracted into the outer tube body 1, and the upper part of the bag body 3 is received in the long strip-shaped notch 12.

[0024] A wing plate 23 is integrally formed on the outer side of the handle 21. The wing plate 23 and the elastic frame 22 are on the same horizontal plane to indicate the position of the elastic frame. An indicator plate can also be formed on the outer side of the operating tube 11 to correspondingly indicate the position of the long strip-shaped notch 12. A guide angle is formed at the second end of the long strip-shaped notch 12 to facilitate the entry of the bag body 3 therein.

[0025] In the standby state, the insertion rod is in the retracted state, the bag body is wound around the flattened elastic frame body, and the bag body and the elastic frame body are received in the outer tube body together. During use, the bag body and the elastic frame body retracted in the outer tube body are sent to a predetermined position through the corresponding channels of the endoscope; then the handle is operated to push the elastic frame body and the bag body out from the second end of the outer tube body; the wing plate is operated to rotate the insertion rod so that the bag body wound around the elastic frame body unfolds and the upper end opening is exposed to capture the specimen; then the insertion rod is operated under the endoscope so that the bag body is aligned with the long strip-shaped notch and then the insertion rod is retracted by operating the handle, so that the elastic frame body is flattened and retracted into the second end of the outer tube body, and the upper part of the bag body is inserted into the long strip-shaped notch, and then the outer tube body and the insertion rod are integrally rotated so that the upper part of the bag body is wound around the outer periphery near the second end of the outer tube body, thereby effectively preventing the specimen in the bag body from being contaminated by the external environment.

Claims

1. An endoscopic specimen retrieval bag, characterized in that Comprising: An outer tube body, an inner insertion rod, and a bag body; A long strip-shaped notch is formed on the lower side of the second end of the outer tube body; The inner insertion rod is slidably installed in the outer tube body; a handle is fixed to the first end of the inner insertion rod, and the handle is located outside the first end of the inner insertion rod; an elastic frame is fixed to the second end of the inner insertion rod, and the elastic frame is formed in a shuttle shape; The bag body is made of a plastic film, with the bottom end closed and the upper end open; the edge of the upper end opening of the bag body is fixed to the elastic frame; When the inner insertion rod is in the extended state, the bag body and the elastic frame are located outside the second end of the outer tube body; when the inner insertion rod is in the retracted state, the elastic frame is flattened and then retracted into the outer tube body, and the upper part of the bag body is received in the long strip-shaped notch.

2. The endoscopic specimen retrieval bag according to claim 1, wherein: A wing plate is integrally formed on the outer side of the handle.

3. The endoscopic specimen retrieval bag according to claim 2, wherein: The wing plate and the elastic frame are on the same horizontal plane.

4. The endoscopic specimen retrieval bag according to claim 1, wherein: A guiding angle is formed at the second end of the long strip-shaped notch.

Images