Basket for removing calculus from biliary and pancreatic tract
By designing a bile-pancreatic stone net basket and using slide rails and rotating ring systems, the existing bile-pancreatic stone net basket is solved, and the existing bile-pancreatic stone net basket is difficult to release stones when conditions are insufficient, achieving stable capture and release of stones, and improving the success rate and safety of the surgery.
Patent Information
- Application Number
- CN202421850395.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-01
AI Technical Summary
In the absence of conditions, existing bile-pancreatic tract stone net baskets are difficult to effectively release captured stones, especially due to the metal shape memory function and the lack of fulcrum points in the bile tract.
A gallbladder stone-taking net basket is designed. By pulling the handle under the limit of the slide rail, driving the transmission wire to slide in the sleeve rod and the outer sheath tube, combining the rotating ring and rope system to achieve stable deformation of the net basket and release of stones. The fixed components of the movable transmission wire and the syringe are used to ensure the stability and safety of operation.
The stable capture and release of stones under complex conditions is achieved, the operation process is simplified, the risk of injury to patients is reduced, and the success rate and safety of the surgery is improved.
Smart Images
Figure CN223196122U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of stone removal net baskets, in particular to a stone removal net basket for the bile and pancreas duct. Background Art
[0002] Bile duct stones are a common biliary disease, mainly caused by the precipitation of substances such as cholesterol, bile salts or bilirubin in the bile. When stones block the bile duct, it may cause severe bile duct obstruction, and then cause serious complications such as jaundice, cholangitis, and pancreatitis. In order to treat these conditions, doctors usually use ERCP surgery, namely endoscopic retrograde cholangiopancreatography. In ERCP surgery, the stone removal basket used by the doctor is one of the key tools. This basket includes components such as an outer sheath, a metal basket, a transmission part and an operating handle.
[0003] During the operation, the doctor inserts the basket through the endoscope into the patient's mouth, esophagus, stomach, duodenum, and then into the biliary system. Once the location of the bile duct stone is reached, the doctor releases the basket by controlling the operating handle to expand it and surround the stone. By adjusting the transmission parts, the basket can shrink and trap the stone safely in the internal grid. Once the stone is captured in the basket, the doctor can remove it carefully to ensure that the surrounding tissue is not damaged. This method can not only effectively relieve bile duct obstruction, but also alleviate the patient's symptoms and prevent possible serious complications. ERCP surgery and the stone removal basket technology used have been widely used in clinical practice and have become one of the important means of treating bile duct stones.
[0004] However, due to the large size of the target stone, the basket simultaneously capturing multiple stones, insufficient duodenal papillary incision, and other issues, the basket may become stuck in the bile duct. Due to the shape memory function of the metal and the lack of a fulcrum in the bile duct, it is difficult to release the captured stone. Therefore, this application proposes a biliopancreatic lithotripsy basket to address the above issues. Utility Model Content
[0005] In order to make up for the above deficiencies, the present invention provides a biliary and pancreatic tract stone removal basket, which aims to solve the problem that it is difficult to release captured stones due to the shape memory function of the metal and the lack of fulcrums in the bile duct when conditions are insufficient.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a bile and pancreatic tract stone removal basket, comprising a handle, five slide rails are provided inside the handle, a handle is slidably connected inside the slide rails, a transmission wire is fixedly connected to the right side of the handle, a basket body is fixedly connected between the right ends of the five transmission wires, caps are threadedly connected to the left and right sides of the handle, a sleeve rod is fixedly connected to the right side of the right cap, an injection port is fixedly connected to the outside of the sleeve rod, an outer sheath is fixedly connected to the inside of the right side of the sleeve rod, a fixing component is installed on the outside of the injection port, and the fixing component is used to fix the needle tube for injecting contrast agents.
[0007] As a further description of the above technical solution:
[0008] The fixing assembly includes a fixing ring, the front side of which is fixedly connected to the rear side of the injection port, a swivel is rotatably connected to the outside of the fixing ring, a plurality of ropes are fixedly connected to the inside of the swivel, a spring is sleeved on the outside of the rope, a baffle is fixedly connected to the inside of the spring, and an insert is fixedly connected to the inside of the baffle.
[0009] As a further description of the above technical solution:
[0010] The left side of the transmission wire is slidably connected to the inside of the handle, and the left side of the transmission wire is slidably connected to the inside of the sleeve rod.
[0011] As a further description of the above technical solution:
[0012] The left side of the transmission wire is slidably connected to the inside of the outer sheath tube, and the left side of the transmission wire is slidably connected to the inside of the cover cap on the right side.
[0013] As a further description of the above technical solution:
[0014] The sleeve rod is externally fixedly connected with two finger rings.
[0015] As a further description of the above technical solution:
[0016] The inner side of the rope is fixedly connected to the outside of the baffle, and the outer side of the rope is slidably connected to the inside of the fixing ring.
[0017] As a further description of the above technical solution:
[0018] The outer side of the spring is fixedly connected to the inner side of the fixing ring, and the outer side of the baffle is slidably connected to the inner side of the fixing ring.
[0019] As a further description of the above technical solution:
[0020] The outside of the insert block is slidably connected to the inside of the fixing ring, and the outside of the rotating ring is provided with a plurality of anti-slip grooves.
[0021] Beneficial effects
[0022] The utility model has the following beneficial effects:
[0023] 1. In the utility model, under the limitation of the slide rail, the handle is pulled to drive the transmission wire to slide in the sleeve rod and the outer sheath tube, thereby driving the basket body to work. It is possible to destroy the stable structure of the basket by moving a single transmission wire in and out, actively deform the stone removal basket, and release the stone.
[0024] 2. In the utility model, by rotating the swivel, the rope is driven to pull the baffle compression spring to shrink the plug block, the syringe is inserted into the injection port and the swivel is released, so that the syringe can be quickly fixed on the injection port to prevent it from falling off due to excessive pressure during injection. At the same time, the operation is simple, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a three-dimensional schematic diagram of a bile and pancreatic tract stone removal basket proposed in the utility model;
[0026] Figure 2 This is a structural schematic diagram of a handle of a bile and pancreatic tract stone removal basket proposed in the present invention;
[0027] Figure 3 This is a schematic structural diagram of a basket body for removing stones from the bile and pancreatic duct proposed in the present invention;
[0028] Figure 4 The utility model is a schematic structural diagram of an inserting block of a biliary and pancreatic tract stone removal basket.
[0029] Legend:
[0030] 1. Handle; 2. Slide rail; 3. Handle; 4. Transmission wire; 5. Net basket body; 6. Cover cap; 7. Sleeve rod; 8. Injection port; 9. Outer sheath; 10. Fixing ring; 11. Swivel; 12. Rope; 13. Spring; 14. Baffle; 15. Insert; 16. Finger ring; 17. Anti-slip groove. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0032] Reference Figure 1 - Figure 4The utility model provides an embodiment of a bile and pancreatic duct stone removal basket, comprising a handle 1, five slide rails 2 are opened inside the handle 1, a handle 3 is slidably connected inside the slide rail 2, a transmission wire 4 is fixedly connected to the right side of the handle 3, and a basket body 5 is fixedly connected between the right ends of the five transmission wires 4. The left and right sides of the handle 1 are threadedly connected to a cap 6, the right side of the right cap 6 is fixedly connected to a sleeve rod 7, the outer side of the sleeve rod 7 is fixedly connected to an injection port 8, the right side of the sleeve rod 7 is fixedly connected to an outer sheath 9, and a fixing component is installed outside the injection port 8. The fixing component is used to fix the needle for injecting contrast agents, the transmission wire 4 is slidably connected to the inside of the handle 1 on the left, the transmission wire 4 is slidably connected to the inside of the sleeve rod 7 on the left, the transmission wire 4 is slidably connected to the inside of the outer sheath 9 on the left, the transmission wire 4 is slidably connected to the inside of the right cap 6 on the left, and the outside of the sleeve rod 7 is fixedly connected to two finger rings 16.
[0033] Specifically, the handle 1 is used for medical staff to manually take it for easy use. The slide rail 2 is used to limit the moving direction of the handle 3 to ensure that the handle 3 can only move left and right and will not move around. The transmission wire 4 is used to drive the basket body 5 to work and realize single movement. The basket body 5 is used to remove stones from the patient's bile duct. The cap 6 is used to ensure the integrity of the stone removal basket. The sleeve rod 7 is a hard pipe for connecting other parts. The injection port 8 is used to connect a syringe filled with contrast agent to inject the contrast agent into the patient's body. The outer sheath 9 is a soft pipe for limiting the moving path of the transmission wire 4 to prevent movement or deviation. The finger ring 16 is used to insert the medical staff's fingers into it to ensure the stability of the device and prevent it from falling out of the hand.
[0034] Reference Figure 1 - Figure 4 The fixing assembly includes a fixing ring 10, the front side of the fixing ring 10 is fixedly connected to the rear side of the injection port 8, the outside of the fixing ring 10 is rotatably connected to a swivel 11, and the inside of the swivel 11 is fixedly connected to multiple ropes 12, the outside of the rope 12 is provided with a spring 13, the inside of the spring 13 is fixedly connected to a baffle 14, the inside of the baffle 14 is fixedly connected to an insert 15, the inside of the rope 12 is fixedly connected to the outside of the baffle 14, the outside of the rope 12 is slidably connected to the inside of the fixing ring 10, the outside of the spring 13 is fixedly connected to the inside of the fixing ring 10, the outside of the baffle 14 is slidably connected to the inside of the fixing ring 10, the outside of the insert 15 is slidably connected to the inside of the fixing ring 10, and the outside of the swivel 11 is provided with multiple anti-slip grooves 17.
[0035] Specifically, the fixed ring 10 is used to connect and limit other parts, the rotating ring 11 wraps the fixed ring 10 inside and is connected to the rope 12. The outside of the rotating ring 11 is provided with anti-slip grooves 17 to prevent slipping and facilitate manual rotation. The rope 12 is used to pull the plug 15 to move, and the spring 13 is used to allow the plug 15 to automatically reset. Under the limitation of the fixed ring 10, the plug 15 can only move in the specified direction and will not move around. A baffle 14 is fixed on the outside to prevent the plug 15 from exceeding the moving range and falling off.
[0036] Working principle: When using this device, first insert the basket body 5 and the transmission wire 4 together with the outer sheath 9 into the patient's body, then inject the contrast agent, by rotating the swivel 11, drive the rope 12 to pull the baffle 14, drive the plug 15 into the fixed ring 10, and then insert the syringe into the injection port 8. At this time, release the swivel 11. Under the limit of the fixed ring 10, the rope 12 pushes the baffle 14, pushes out the plug 15 and inserts it into the syringe to fix it and prevent it from falling off. Then inject the contrast agent into the injection port 8. The contrast agent flows to the end of the basket body 5 through the outer sheath 9 to achieve contrast, and then according to the image produced and the size and shape of the stone, move the single handle 3 under the limit of the slide rail 2. , drives a transmission wire 4 along the outer sheath 9 to drive a certain wire on the corresponding basket body 5 to move, so as to make a single wire active and let the basket body 5 actively deform. By moving the handles 3 in sequence, the basket body 5 clamps the stone. At this time, the entire device is pulled to allow the transmission wire 4, the basket body 5 and the clamped stone to be taken out of the patient's body together with the outer sheath 9. The operation is simple and convenient. When the stone is too large or the entrance is not cut enough, resulting in the device being unable to be taken out, it is only necessary to push one or more moving handles 3 to drive the transmission wire 4 to open the basket body 5 and release the captured stone again. At this time, the device can be taken out of the patient's body, and then other methods can be used to remove the stone.
[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A biliary and pancreatic tract stone removal basket, comprising a handle (1), characterized in that: Five slide rails (2) are provided inside the handle (1), a handle (3) is slidably connected inside the slide rail (2), a transmission wire (4) is fixedly connected to the right side of the handle (3), a basket body (5) is fixedly connected between the right ends of the five transmission wires (4), a cap (6) is threadedly connected to the left and right sides of the handle (1), a sleeve rod (7) is fixedly connected to the right side of the right cap (6), an injection port (8) is fixedly connected to the outside of the sleeve rod (7), an outer sheath (9) is fixedly connected to the inside of the right side of the sleeve rod (7), a fixing component is installed on the outside of the injection port (8), and the fixing component is used to fix the needle tube for injecting contrast agents.
2. The biliary and pancreatic tract stone removal basket according to claim 1, characterized in that: The fixing assembly includes a fixing ring (10), the front side of the fixing ring (10) is fixedly connected to the rear side of the injection port (8), the outside of the fixing ring (10) is rotatably connected to a swivel (11), the inside of the swivel (11) is fixedly connected to a plurality of ropes (12), the outside of the ropes (12) is provided with a spring (13), the inside of the spring (13) is fixedly connected to a baffle (14), and the inside of the baffle (14) is fixedly connected to an insert (15).
3. The biliary and pancreatic tract stone removal basket according to claim 1, characterized in that: The left side of the transmission wire (4) is slidably connected to the inside of the handle (1), and the left side of the transmission wire (4) is slidably connected to the inside of the sleeve rod (7).
4. The biliary and pancreatic tract stone removal basket according to claim 1, characterized in that: The left side of the transmission wire (4) is slidably connected to the inside of the outer sheath (9), and the left side of the transmission wire (4) is slidably connected to the inside of the cover cap (6) on the right side.
5. The biliary and pancreatic tract stone removal basket according to claim 1, characterized in that: The sleeve rod (7) is externally fixedly connected with two finger rings (16).
6. The biliary and pancreatic tract stone removal basket according to claim 2, characterized in that: The inner side of the rope (12) is fixedly connected to the outside of the baffle (14), and the outer side of the rope (12) is slidably connected to the inside of the fixing ring (10).
7. The biliary and pancreatic tract stone removal basket according to claim 2, characterized in that: The outer side of the spring (13) is fixedly connected to the inside of the fixing ring (10), and the outer side of the baffle (14) is slidably connected to the inside of the fixing ring (10).
8. The biliary and pancreatic tract stone removal basket according to claim 2, characterized in that: The outside of the insert block (15) is slidably connected to the inside of the fixed ring (10), and the outside of the rotating ring (11) is provided with a plurality of anti-slip grooves (17).