Intraluminal foreign body forceps

Abstract

This utility model relates to the field of medical equipment technology and discloses a foreign body grasping forceps for the ureter, comprising: a fixed shell, a fixed handle provided at the lower right end of the fixed shell, a side frame provided on the outer side of the fixed handle, and a movable handle rotatably mounted inside the side frame; a fixed outer tube, located at the left end outside the fixed shell, with a spring hose provided at one outer end of the fixed outer tube, and a top tube provided at one outer end of the spring hose; an inner shell, located inside the top tube, with a first return spring provided inside the top tube, and a clamp installed on the side of the inner shell opposite to the first return spring, with inner top blocks provided on both the upper and lower sides of the top tube outside the clamp; and a conduit located between the top tube and the fixed shell. This utility model prevents the clamp from entering the ureter and damaging the inner wall of the ureter by pulling the inner shell into the top tube to clamp and retract the clamp into the top tube.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically a foreign body grasping forceps for the ureter. Background Technology

[0002] Percutaneous nephrolithotomy requires an incision in the skin to insert an endoscope for observation. Once inside the kidney, it may encounter stone debris, blood clots, or other foreign objects. When a foreign object is encountered, it is grasped with forceps.

[0003] For example, the foreign body forceps used in conjunction with a ureteroscope, patent number CN 216135985 U, includes: a body, a bendable structure, and a forceps head. The forceps body has a bendable structure, with a forceps head at one end. The forceps head also includes a connecting cable, the other end of which is connected to the forceps body. The bendable structure includes a fixed cylinder, an outer tube, a middle tube, and a spring hose. The left end of the fixed cylinder has an outer tube, and the left end of the outer tube has a spring hose connected to the forceps head. The middle tube is movably fitted inside the outer tube, so that the spring hose is movably fitted on the outer wall of the left end of the middle tube. The fixed cylinder also includes an adjustment groove. During the procedure, the front end of the forceps body is bent, and when the forceps body is rotated, the front end forms an angle with the direction of the ureteral lumen, thus facilitating the surgeon to grasp stones or suspicious tissue. If a stone slips into the renal pelvis, it can also help the surgeon to reposition the stone to the upper ureter for lithotripsy or removal, improving surgical efficiency, avoiding secondary lithotripsy, and reducing patient expenses.

[0004] In the aforementioned prior art, when a foreign body forceps, an instrument with hard edges and sharp parts, enters the ureter, it is easy for it to rub and collide with the inner wall of the ureter. As a medical device, the foreign body forceps are usually quite hard and have sharp edges, which increases the risk of damage to the inner wall of the ureter. Therefore, a foreign body grasping forceps for the ureter is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a foreign body grasping forceps for the ureter, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a foreign body grasping forceps for the ureter, comprising:

[0009] A fixed shell is provided with a fixed handle at the lower right end of the fixed shell, and a side frame is provided on the outer side of the fixed handle. A movable handle is rotatably installed inside the side frame.

[0010] A fixed outer tube is provided at the left end of the outside of the fixed shell. A spring hose is provided at one end of the fixed outer tube, and a top tube is provided at one end of the spring hose.

[0011] An inner shell is disposed inside the jacking tube and is slidably connected to the jacking tube. A first return spring is disposed inside the jacking tube, and the two ends of the first return spring are respectively connected to the inside of the jacking tube and the outside of the inner shell. A clamp is installed on the side of the inner shell away from the first return spring. The clamp is rotatably connected to the inner shell. A second return spring is disposed inside the clamp. Inner top blocks are disposed on the upper and lower sides of the jacking tube outside the clamp.

[0012] A conduit is disposed between the top tube and the fixed shell. The conduit is located inside the spring hose and the fixed outer tube. A first pull cable is disposed inside the conduit, and the two ends of the first pull cable are respectively fixed to the inner shell and the movable handle.

[0013] Preferably, a silicone ring is provided at one end of the outer side of the jacking pipe, and the silicone ring is connected to the jacking pipe, so that the silicone ring can play a protective role when the jacking pipe moves.

[0014] Preferably, a second pull cable is provided inside the spring hose and the fixed outer tube, located outside the conduit. One end of the second pull cable is fixed to the top tube. Pulling the second pull cable will pull the top tube, thereby causing the spring hose to bend.

[0015] Preferably, the lower end of the fixed shell is provided with a sliding groove, and the sliding groove is integrally formed with the fixed shell.

[0016] Preferably, the slide groove is provided with a lever block, and the other end of the second cable is fixed to the lever block, which is used to pull the second cable.

[0017] Preferably, the slide groove is provided with a slide rod inside, and the toggle block is slidably connected to the slide rod, which makes the movement of the toggle block more stable.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a foreign body grasping forceps for the ureter, which has the following beneficial effects:

[0020] This invention moves the inner shell toward the inside of the jacking tube by pressing the fixed handle and pulling the first cable. The clamps then clamp and retract into the jacking tube, at which point the jacking tube is inserted into the ureter. The jacking tube contacts the ureter through its outer wall, preventing the clamps from directly contacting the ureter and damaging its inner wall. This solves the problem mentioned in the background art. Attached Figure Description

[0021] Figure 1 This is a perspective view of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.

[0024] In the diagram: 1. Fixed shell; 2. Fixed handle; 3. Movable handle; 4. Fixed outer tube; 5. Spring hose; 6. Top tube; 7. Silicone ring; 8. Side frame; 9. Inner top block; 10. Inner shell; 11. First return spring; 12. Clamp; 13. First pull cable; 14. Second pull cable; 15. Conduit; 16. Slide groove; 17. Slide rod; 18. Toggle block; 19. Second return spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution: a foreign body grasping forceps for the ureter. Please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 3 ,include:

[0027] Fixed shell 1, fixed handle 2 is provided at the lower right end of fixed shell 1, side frame 8 is provided on the outer side of fixed handle 2, and movable handle 3 is rotatably installed inside side frame 8;

[0028] A fixed outer tube 4 is located at the left end of the outside of the fixed shell 1. A spring hose 5 is provided at one end of the fixed outer tube 4, and a top tube 6 is provided at one end of the spring hose 5.

[0029] The inner shell 10 is disposed inside the top tube 6 and is slidably connected to the top tube 6. The top tube 6 is provided with a first return spring 11, and the two ends of the first return spring 11 are respectively connected to the inside of the top tube 6 and the outside of the inner shell 10. A clamp 12 is installed on the side of the inner shell 10 away from the first return spring 11. The clamp 12 is rotatably connected to the inner shell 10. A second return spring 19 is disposed inside the clamp 12. Inner top blocks 9 are provided on the upper and lower sides of the top tube 6 outside the clamp 12.

[0030] The conduit 15 is located between the top pipe 6 and the fixed shell 1. The conduit 15 is located inside the spring hose 5 and the fixed outer pipe 4. The conduit 15 is equipped with a first pull cable 13, and the two ends of the first pull cable 13 are fixed to the inner shell 10 and the movable handle 3 respectively.

[0031] Please see Figure 3 A silicone ring 7 is provided at one end of the outer side of the jacking pipe 6, and the silicone ring 7 is connected to the jacking pipe 6. The silicone ring 7 provides protection when the jacking pipe 6 moves.

[0032] Please see Figure 1 , Figure 2 and Figure 3 The inner part of the spring hose 5 and the fixed outer tube 4 is provided with a second pull cable 14 located outside the conduit 15. One end of the second pull cable 14 is fixed to the top tube 6. Pulling the second pull cable 14 will pull the top tube 6, thereby causing the spring hose 5 to bend.

[0033] Please see Figure 2 The lower end of the fixed shell 1 is provided with a sliding groove 16, and the sliding groove 16 is integrally formed with the fixed shell 1.

[0034] Please see Figure 1 and Figure 2 The slide 16 is provided with a lever 18 inside, and the other end of the second cable 14 is fixed to the lever 18. The lever 18 is used to pull the second cable 14.

[0035] Please see Figure 1 and Figure 2 The slide 16 is provided with a slide rod 17 inside, and the toggle block 18 is slidably connected to the slide rod 17. The slide rod 17 makes the movement of the toggle block 18 more stable.

[0036] This solution: Press the movable handle 3 to move it toward the side of the fixed outer tube 4. The movable handle 3 pulls the first cable 13, thereby pulling the inner shell 10. The inner shell 10 moves toward the inside of the top tube 6, causing the clamp 12 to move. Under the pressure of the inner top block 9, the clamp 12 clamps inward and retracts into the top tube 6. At this time, the top tube 6 is inserted into the ureter. When it is necessary to clamp a foreign object, release the movable handle 3. The first return spring 11 returns to its original position and pushes the inner shell 10, causing the clamp 12 to move outward. The second return spring 19 pushes the clamp 12 to open. When the clamp 12 moves to the outside of the foreign object, press the movable handle 3 to... Pulling the first cable 13 pulls the inner shell 10, which moves towards the inside of the top tube 6, causing the clamp 12 to move. Under the pressure of the inner top block 9, the clamp 12 clamps inward to hold the foreign object. Then, the fixed shell 1 is pulled until the foreign object is pulled out of the ureter. When it is necessary to change the angle of the top tube 6 and the clamp 12, the lever 18 is pulled towards the fixed handle 2. The lever 18 moves the second cable 14, which in turn generates a pull force on the spring hose 5. The spring hose 5 bends, causing the top tube 6 and the clamp 12 to change direction. At the same time, the inner tubing 15 of the spring hose 5 bends accordingly.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foreign body grasping forceps for the ureter, characterized in that, include: A fixed shell (1) is provided with a fixed handle (2) at the lower right end of the fixed shell (1). A side frame (8) is provided on the outer side of the fixed handle (2). A movable handle (3) is rotatably installed inside the side frame (8). A fixed outer tube (4) is provided at the left end of the outside of the fixed shell (1). A spring hose (5) is provided at one end of the fixed outer tube (4), and a top tube (6) is provided at one end of the spring hose (5). An inner shell (10) is disposed inside the top tube (6) and is slidably connected to the top tube (6). A first return spring (11) is disposed inside the top tube (6), and the two ends of the first return spring (11) are respectively connected to the inside of the top tube (6) and the outside of the inner shell (10). A clamp (12) is installed on the side of the inner shell (10) away from the first return spring (11). The clamp (12) is rotatably connected to the inner shell (10). A second return spring (19) is disposed inside the clamp (12). Inner top blocks (9) are disposed on the upper and lower sides of the top tube (6) outside the clamp (12). A conduit (15) is disposed between the top tube (6) and the fixed shell (1). The conduit (15) is located inside the spring hose (5) and the fixed outer tube (4). A first pull cable (13) is disposed inside the conduit (15), and the two ends of the first pull cable (13) are fixed to the inner shell (10) and the movable handle (3) respectively.

2. The foreign body grasping forceps for the ureter according to claim 1, characterized in that: A silicone ring (7) is provided at one end of the outer side of the jacking pipe (6), and the silicone ring (7) is connected to the jacking pipe (6).

3. The foreign body grasping forceps for the ureter according to claim 1, characterized in that: The inner parts of the spring hose (5) and the fixed outer tube (4) are provided with a second cable (14) located outside the conduit (15), and one end of the second cable (14) is fixed to the top tube (6).

4. The foreign body grasping forceps for the ureter according to claim 3, characterized in that: The lower end of the fixed shell (1) is provided with a sliding groove (16), and the sliding groove (16) is integrally formed with the fixed shell (1).

5. A foreign body grasping forceps for the ureter according to claim 4, characterized in that: The slide (16) is provided with a lever (18) inside, and the other end of the second cable (14) is fixed to the lever (18).

6. A foreign body grasping forceps for the ureter according to claim 5, characterized in that: The slide groove (16) is provided with a slide rod (17) inside, and the toggle block (18) is slidably connected to the slide rod (17).

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