ERCP surgery calculus removing mesh basket assembly

Abstract

The utility model relates to the technical field of ERCP surgery, and discloses an ERCP surgery calculus removing mesh basket assembly which comprises a beam tube, a movable lead screw, a mesh basket body, a fixed handle and a movable handle. A wrapping sleeve is arranged on the peripheral side of the end, close to the mesh basket body, of the beam tube, and an annular opening is formed in the peripheral side of the wrapping sleeve; an annular elastic rubber film is arranged on the wrapping sleeve and located in the annular opening, an inflation channel with one end communicated with the interior of the wrapping sleeve is formed in the beam tube, an inflation nozzle communicated with the inflation channel is arranged on the fixed handle, and after the wrapping sleeve is inflated, the elastic rubber film swells to be in a disc shape. The disc-shaped elastic rubber membrane can be used for scraping the muddy stones detained in the duodenal papilla opening, so that the muddy stones are scraped into the duodenal tract, and the muddy stones and granular stones are discharged out of a human body from the intestinal tract together.

Description

Technical Field

[0001] The utility model belongs to the technical field of ERCP surgery, and particularly relates to a stone extraction basket assembly for ERCP surgery. Background Technique

[0002] Endoscopic retrograde cholangiopancreatography (ERCP) is a method of inserting an endoscope into the descending part of the duodenum, finding the papilla of the pancreatic and bile ducts, and then inserting a contrast catheter through the biopsy hole to inject iodine contrast agent for X-ray examination.

[0003] Endoscopic (retrograde) cholangiopancreatography is mainly performed through a duodenoscope. In a conventional endoscope, the lens is on the front side of the front end, while in this operation, it is a side-view endoscope and the lens is on the left side. During the process of endoscopic cholangiopancreatography, a papillotome is used to selectively catheterize the common bile duct. That is, the knife is inserted into the common bile duct through the duodenal papilla. Since this process is performed under fluoroscopy, the running direction of the guide wire in the common bile duct can be judged by fluoroscopy, and then the papillotome or the contrast catheter is inserted, and the contrast agent is injected. Through the displayed process, the nature of the disease, such as stones, tumor lesions, or compression by pancreatic head cancer, etc., can be judged. With the progress of examination equipment, such as magnetic resonance MRCP, it can also play the same role in magnetic resonance cholangiopancreatography. In addition to diagnosis, endoscopic cholangiopancreatography can also be used to treat diseases. For example, whether there are stones in the common bile duct can be determined by this method, and the location and number of stones can be determined, and then a stone extraction basket or a stone extraction balloon is used to take out the stones from the common bile duct and discharge them into the intestine.

[0004] At present, Chinese Patent No. CN217430105U, published on September 16, 2022, discloses an efficient stone extraction basket, which includes a bundle tube and an operating rod movably arranged inside the bundle tube. One end of the operating rod is provided with a stone extraction basket, and a stone extraction filter screen is arranged at the head end of the stone extraction basket. The stone extraction filter screen is in the shape of a hollow cylinder and can be retractably accommodated in the bundle tube, and the maximum aperture of the side wall mesh holes is less than 2 mm.

[0005] During use, by pulling the end of the operating rod, the stone extraction basket at the other end of the operating rod can be retracted, and at this time, the retractable stone extraction basket can grasp the stones.

[0006] In endoscopic retrograde cholangiopancreatography, after the stone extraction basket enters from the position of the duodenal papilla, the stones in the common bile duct can be taken out into the duodenum, so that the stones can be discharged from the body through the intestine; however, in actual operations, some muddy stones often cannot be taken out from the duodenal papilla through the stone extraction basket, resulting in the retention of muddy stones in the duodenal papilla, which will ultimately be unfavorable for efficiently cleaning the stones in the common bile duct. Content of the Utility Model

[0007] The utility model aims to provide an ERCP surgery stone removal net basket component, which can be beneficial to the efficient cleaning of the broken muddy stones retained in the duodenal papilla.

[0008] The above technical purpose of the utility model is achieved through the following technical solutions: an ERCP surgical stone removal basket assembly, including a bundle tube, a movable screw rod located in the bundle tube and passing through the bundle tube at both ends, a basket body arranged at the end of the movable screw rod, a fixed handle arranged at one end of the bundle tube away from the basket body, and a movable handle arranged at one end of the fixed handle away from the bundle tube and connected to the movable screw rod, a wrapping sleeve is arranged on the circumferential side of one end of the bundle tube close to the basket body, an annular opening is opened on the circumferential side of the wrapping sleeve, an annular elastic rubber membrane is arranged on the wrapping sleeve and located in the annular opening, an inflation channel with one end communicating with the inside of the wrapping sleeve is opened in the bundle tube, an inflation nozzle communicating with the inflation channel is arranged on the fixed handle, and when the wrapping sleeve is inflated, the elastic rubber membrane swells into a disc shape.

[0009] The utility model is further configured as follows: protective slopes are provided at both ends of the wrapping sleeve.

[0010] The utility model is further configured as follows: the fixed handle is provided with an elastic buckle for fingers to be inserted into.

[0011] In summary, the utility model has the following beneficial effects:

[0012] 1. When the stone-removing basket has finished grabbing the granular stones and the crushed muddy stones are still retained in the duodenal papilla, the movable handle is pulled to put the basket body into the bundle tube, and then the inflation nozzle on the fixed handle is inflated through the external inflation device, and the high-pressure gas can pass through the inflation channel and enter the wrapping sleeve, and then the high-pressure gas can open the elastic rubber membrane, so that the elastic rubber membrane bulges toward the outside of the wrapping sleeve, and then the elastic rubber membrane can bulge into a disc shape, and the crushed muddy stones retained in the duodenal papilla can be scraped off through the disc-shaped elastic rubber membrane, so that the crushed muddy stones are scraped into the duodenum, so that the crushed muddy stones and granular stones are discharged from the intestine together.

[0013] In the specific operation process, the uninflated wrapping sleeve is first inserted into the duodenal papilla, and then the elastic rubber membrane is inflated in the duodenal papilla, and then the disc-shaped elastic rubber membrane can be used to scrape off the broken muddy stones retained in the duodenal papilla; if there are still broken muddy stones retained in the duodenal papilla, the gas in the elastic rubber membrane is first extracted to restore the elastic rubber membrane to a deflated state, and then the uninflated wrapping sleeve can be inserted into the duodenal papilla again, and finally the repeated scraping operation can be conveniently performed;

[0014] 2. By using the protective inclined planes provided at both ends of the wrapping sleeve, the protective inclined planes can protect the mucosa of the duodenal papilla opening and avoid scratching the mucosa of the duodenal papilla opening.

[0015] 3. By using the elastic buckle provided on the fixed handle, the elastic buckle can be embedded by the finger, thus facilitating the stable holding of the fixed handle by the human hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is an enlarged partial structural view of the present invention at the position of the basket body;

[0019] Figure 3 is a partial structural cross-sectional view of the present invention at the position where the bundle tube is located at the wrapping sleeve, and at this time the elastic rubber membrane is in a shriveled state;

[0020] Figure 4 is a partial structural cross-sectional view of the present invention at the position where the bundle tube is located at the wrapping sleeve, and at this time the elastic rubber membrane is in a bulged state.

[0021] In the figure, 1. Bundle tube; 11. Inflation channel; 2. Movable lead screw; 21. Basket body; 3. Fixed handle; 31. Movable handle; 32. Inflation nozzle; 33. Elastic buckle; 4. Wrapping sleeve; 41. Annular opening; 42. Elastic rubber membrane; 43. Protective inclined plane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] An ERCP surgical lithotripsy basket assembly, refer to Figure 1 、 Figure 2The ERCP surgery stone removal basket assembly includes a bundle tube 1, a movable screw rod 2, a basket body 21, a fixed handle 3, and a movable handle 31, wherein the movable screw rod 2 extends into the bundle tube 1, and the basket body 21 is connected to one end of the movable screw rod 2, and the basket body 21 is contracted by the extension and retraction of the movable screw rod 2 at the end of the bundle tube 1; at the same time, the fixed handle 3 is fixed to the end of the bundle tube 1 away from the basket body 21, and the movable handle 31 is arranged on the fixed handle 3 and connected to the end of the movable screw rod 2 away from the basket body 21, and the movable screw rod 2 in the bundle tube 1 can be driven to extend and retract by pulling the movable handle 31; wherein the fixed handle 3 is also integrally provided with an elastic buckle 33 for fingers to be embedded.

[0024] Reference Figure 2 , Figure 3 , Figure 4 A wrapping sleeve 4 is bonded and fixed to the circumference of one end of the bundle tube 1 close to the basket body 21, and protective inclined surfaces 43 are provided at both ends of the wrapping sleeve 4, wherein an annular opening 41 is provided on the circumference of the wrapping sleeve 4, and an annular elastic rubber membrane 42 is bonded and fixed on the wrapping sleeve 4 and in the annular opening 41, and at the same time, an inflation channel 11 is provided at one end of the bundle tube 1 and communicated with the wrapping sleeve 4, and an inflation nozzle 32 communicated with the inflation channel 11 is provided on the fixed handle 3, and the inflation nozzle 32 can be inflated and evacuated by an external medical air pump, and when the wrapping sleeve 4 is inflated, the elastic rubber membrane 42 swells into a disc shape.

[0025] Principle: When the stone-removing basket has finished capturing the granular stones and the crushed mud-like stones are still retained in the duodenal papilla, the movable handle 31 is pulled to put the basket body 21 into the bundle tube 1, and then the inflation nozzle 32 on the fixed handle 3 is inflated through the external inflation device, and the high-pressure gas can pass through the inflation channel 11 and enter the wrapping sleeve 4, and then the high-pressure gas can open the elastic rubber membrane 42, so that the elastic rubber membrane 42 bulges toward the outside of the wrapping sleeve 4, and then the elastic rubber membrane 42 can bulge into a disc shape, and the crushed mud-like stones retained in the duodenal papilla can be scraped off by the disc-shaped elastic rubber membrane 42, so that the crushed mud-like stones are scraped into the duodenum, so that the crushed mud-like stones and granular stones are discharged from the intestine together.

[0026] In the specific operation process, the uninflated wrapping sleeve 4 is first inserted into the duodenal papilla opening, and then the elastic rubber membrane 42 is inflated in the duodenal papilla opening, and then the disc-shaped elastic rubber membrane 42 can be used to scrape off the broken mud-like stones retained in the duodenal papilla opening; if there are still broken mud-like stones retained in the duodenal papilla opening, the gas in the elastic rubber membrane 42 is first extracted to restore the elastic rubber membrane 42 to a deflated state, and then the uninflated wrapping sleeve 4 can be inserted into the duodenal papilla opening again, and finally the repeated scraping operation can be conveniently performed.

Claims

1. An ERCP surgery stone removal basket assembly, comprising a bundle tube (1), a movable screw rod (2) located in the bundle tube (1) and passing through the bundle tube (1) at both ends, a basket body (21) arranged at the end of the movable screw rod (2), a fixed handle (3) arranged at one end of the bundle tube (1) away from the basket body (21), and a movable handle (31) arranged at one end of the fixed handle (3) away from the bundle tube (1) and connected to the movable screw rod (2), characterized in that: A wrapping sleeve (4) is arranged on the circumferential side of one end of the bundle tube (1) close to the basket body (21); an annular opening (41) is provided on the circumferential side of the wrapping sleeve (4); an annular elastic rubber membrane (42) is arranged on the wrapping sleeve (4) and located inside the annular opening (41); an inflation channel (11) is arranged at one end in the bundle tube (1) and communicates with the wrapping sleeve (4); an inflation nozzle (32) in communication with the inflation channel (11) is arranged on the fixed handle (3); when the wrapping sleeve (4) is inflated, the elastic rubber membrane (42) swells into a disc shape.

2. The ERCP surgery stone removal basket assembly according to claim 1, characterized in that: Both ends of the wrapping sleeve (4) are provided with protective inclined surfaces (43).

3. The ERCP surgery stone removal basket assembly according to claim 1, characterized in that: The fixed handle (3) is provided with an elastic buckle (33) for fingers to be inserted into.

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