A multifunctional ureteral guide sheath with easy adjustment
By designing a multifunctional ureteral guide sheath with a fixing ring and connecting funnel, the problem of inconvenient adjustment and fixation of existing devices has been solved, achieving precise fixation of the instrument and convenient operation, thus improving the accuracy and comfort of the surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MEDICAL UNIV
- Filing Date
- 2025-03-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing ureteral guiding sheath devices are not easy to adjust and have poor fixation, leading to operational difficulties and frequent misoperations.
A multifunctional ureteral guide sheath, comprising a fixing ring, connecting cup, rigid tube, pull ring, and claws, was designed. The sheath achieves precise fixation and angle adjustment of the instrument through threaded connection and detachable components, and improves operational accuracy by combining a rubber anti-slip ring and a metal support structure.
It enables convenient adjustment and fixation of the ureteral guiding sheath, reduces operational errors, and improves surgical precision and user comfort.
Smart Images

Figure CN224484674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to a multifunctional ureteral guide sheath that is easy to adjust. Background Technology
[0002] Currently, ureteral guiding sheaths are frequently used in the surgical or treatment of ureteral diseases to establish a surgical channel, enabling precise and effective treatment of the lesion, minimizing patient pain, and facilitating subsequent recovery. However, existing guiding sheath devices are inconvenient to adjust, have poor internal structure fixation, and are difficult to hold and use, easily leading to operational errors, thus failing to meet current usage needs. Utility Model Content
[0003] The purpose of this invention is to provide a multifunctional ureteral guide sheath that is easy to adjust, which solves the technical problems of inconvenient use and poor fixation in the prior art, and achieves the technical effects of convenient use and easy device fixation.
[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:
[0005] An easily adjustable multifunctional ureteral guide sheath includes a fixing ring, a connecting cup, and a rigid tube. The fixing ring has threads on its inner side. The connecting cup is located above the fixing ring and is detachably connected via threads. The upper diameter of the connecting cup is larger than the diameter of the fixing ring. A connecting seat is provided above the connecting cup. An inner tube is fitted and fixed inside the connecting seat. Threaded rods on both sides of the connecting seat are detachably connected to the connecting cup. The connecting seat is used to fix and adjust the position of the inner tube. The rigid tube is located below the fixing ring. A handle is fitted and connected to the upper end of the rigid tube. The handle has anti-slip texture on its outer side. The upper end of the handle has a threaded interface that is detachably connected to the fixing ring. A flexible tube is fitted and fixed to the lower end of the rigid tube for angle adjustment.
[0006] As an improvement, the fixing ring is made of hard plastic. A pull ring is fixed to one side of the fixing ring. The inner diameter of the pull ring is 3 cm. A rubber anti-slip ring is fitted and fixed to the inner side of the pull ring for easy gripping and adjustment. The fixing ring also includes a branch tube. The branch tube is located on the side of the fixing ring away from the pull ring. The branch tube communicates with the inner through hole of the fixing ring. The side of the branch tube away from the pull ring has a plug. The plug is detachably connected to the branch tube by threads.
[0007] As an improvement, the upper end of the fixing ring is fixed with a sealing connecting seat and the connecting bucket is detachably sealed. The lower end of the connecting bucket is fixed with a limiting protrusion, which is symmetrically arranged on both sides of the axis of the connecting bucket. The upper end of the connecting bucket is fixed with a top rod, which is located directly above the limiting protrusion and is used for the installation and adjustment of the connecting bucket.
[0008] As an improvement, the connecting bucket is provided with claws on both sides. The lower end of the claws cooperates with the limiting protrusion to limit the position. The upper part of the claws abuts against the top rod. The upper end of the claws has a handle for easy adjustment. The two sides of the connecting seat are symmetrically fixed with rotating connecting seats that are rotatably connected to the claws to facilitate fixing the relative position of the connecting seats.
[0009] As an improvement, a guide head is fixed to the end of the hose away from the fixing ring. The guide head is made of rubber and has a groove on the outside. The groove is used to shape the guide head. An inner branch tube is sleeved and fixed inside the hose. The inner branch tube is made of metal and is used to support the hose while making it easy to bend and fix into the corresponding shape.
[0010] The beneficial effects of this utility model are as follows: by setting up structures such as fixing rings and connecting buckets, it is convenient to assemble and use different structures, thereby facilitating the overall use and operation; by setting up structures such as claws and connecting seats, it is convenient to fix the position of the instrument; and by setting up structures such as pull rings and gripping seats, it is even more convenient to hold and operate the device, thereby improving the accuracy of operation and reducing operational errors. Attached Figure Description
[0011] Figure 1 This is a front view of a multifunctional ureteral guide sheath that is easy to adjust according to the present invention;
[0012] Figure 2 for Figure 1 Enlarged sectional view of part A.
[0013] In the diagram: 1. Fixed ring; 2. Connecting bucket; 3. Pull ring; 4. Handle; 5. Claw; 6. Limiting protrusion; 7. Top rod; 8. Connecting seat; 9. Rotating connecting seat; 10. Branch pipe; 11. Plug; 12. Holding seat; 13. Rigid pipe; 14. Flexible pipe; 15. Guide slide head; 16. Inner branch pipe. Detailed Implementation
[0014] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0015] like Figure 1 and Figure 2 As shown, an easily adjustable multifunctional ureteral guide sheath includes a fixing ring 1, a connecting cup 2, and a rigid tube 13. The fixing ring 1 has threads on its inner side. The connecting cup 2 is located above the fixing ring 1 and is detachably connected via threads. The upper diameter of the connecting cup 2 is larger than the diameter of the fixing ring 1. A connecting seat 8 is provided above the connecting cup 2. An inner tube is fitted and fixed inside the connecting seat 8. Threaded rods on both sides of the connecting seat 8 are detachably connected to the connecting cup 2. The connecting seat 8 is used to fix and adjust the position of the inner tube. The rigid tube 13 is located below the fixing ring 1. A gripping seat 12 is fitted and connected to the upper end of the rigid tube 13. The outer side of the gripping seat 12 has anti-slip texture. The upper end of the gripping seat 12 has a threaded interface that is detachably connected to the fixing ring 1. A flexible tube 14 is fitted and fixed to the lower end of the rigid tube 13 for angle adjustment. The connecting seat 8 is a rotating clamping structure; the clamping and fixing of the instrument can be controlled by turning the outer turntable, facilitating fine adjustments to the instrument's position.
[0016] The fixing ring 1 is made of hard plastic. A pull ring 3 is fixed to one side of the fixing ring 1. The inner diameter of the pull ring 3 is 3 cm. A rubber anti-slip ring is fitted and fixed to the inner side of the pull ring 3 for easy gripping and adjustment. The fixing ring 1 also includes a branch tube 10. The branch tube 10 is located on the side of the fixing ring 1 away from the pull ring 3. The branch tube 10 communicates with the inner through hole of the fixing ring 1. The side of the branch tube 10 away from the pull ring 3 has a plug 11. The plug 11 is detachably connected to the branch tube 10 by threads. A sealing connecting seat is fixed to the upper end of the fixing ring 1 and is detachably sealed to the connecting bucket 2. A limiting protrusion 6 is fixed to the lower end of the connecting bucket 2. The limiting protrusion 6 is symmetrically arranged on both sides of the axis of the connecting bucket 2. A top rod 7 is fixed to the upper end of the connecting bucket 2. The top rod 7 is located directly above the limiting protrusion 6 and is used for the installation and adjustment of the connecting bucket 2. The connecting bucket 2 has claws 5 on both sides. The lower end of the claw 5 cooperates with the limiting protrusion 6 for positioning. The upper part of the claw 5 abuts against the top rod 7. The upper end of the claw 5 has a handle 4 for easy adjustment. The connecting seat 8 has symmetrical rotating connecting seats 9 on both sides, which are rotatably connected to the claws 5 for easy fixing of the relative position of the connecting seat 8. The lower end of the claw 5 has a rubber anti-slip pad for positioning and fixing with the limiting protrusion 6. The rotating connecting seat 9 has a coil spring inside for easy control of the claw 5 to retract naturally, thus facilitating use.
[0017] A guide head 15 is fixed to the end of the flexible hose 14 away from the fixing ring 1. The guide head 15 is made of rubber and has a groove on its outer side for shaping. An inner branch tube 16 is fitted and fixed inside the flexible hose 14. The inner branch tube 16 is made of metal and supports the flexible hose 14 while facilitating bending and fixing into the corresponding shape. The diameter of the guide head 15 is larger than the diameter of the flexible hose 14, and it is tapered for easy pushing and using.
[0018] When in use, the corresponding instrument can be fixedly connected via the connecting seat 8. Then, grasp the handle 4 of the claw 5, align it with the top rod 7, and release it to allow the claw to engage with the fiber protrusion 6 for a secure connection, thus achieving overall instrument fixation. During surgical procedures, medical personnel can fully control the instrument using the pull ring 3 and the handle 12. The flexible tube 14 can also be bent during use to adjust the shape of the inner branch tube 16, further facilitating the operation and use of the device.
[0019] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.
Claims
1. A multifunctional ureteral guiding sheath that is easy to adjust, characterized in that, The device includes a fixed ring (1), a connecting bucket (2), and a rigid tube (13). The inner side of the fixed ring (1) is threaded. The connecting bucket (2) is located at the upper end of the fixed ring (1) and is detachably connected by threads. The upper diameter of the connecting bucket (2) is larger than the diameter of the fixed ring (1). A connecting seat (8) is provided above the connecting bucket (2). An inner tube is fitted and fixed on the inner side of the connecting seat (8). The two sides of the connecting seat (8) are threaded rods that are detachably connected to the connecting bucket (2). The connecting seat (8) is used to fix and adjust the position of the inner tube. The rigid tube (13) is located below the fixed ring (1). A gripping seat (12) is fitted and connected to the upper end of the rigid tube (13). The outer side of the gripping seat (12) is textured with anti-slip. The upper end of the gripping seat (12) is threaded and detachably connected to the fixed ring (1). A flexible tube (14) is fitted and fixed to the lower end of the rigid tube (13) for angle adjustment.
2. The easily adjustable multifunctional ureteral guiding sheath according to claim 1, characterized in that, The fixing ring (1) is made of hard plastic. A pull ring (3) is fixed on one side of the fixing ring (1). The inner diameter of the pull ring (3) is 3 cm. A rubber anti-slip ring is fitted and fixed on the inner side of the pull ring (3) for easy gripping and adjustment. The fixing ring (1) also includes a branch pipe (10). The branch pipe (10) is located on the side of the fixing ring (1) away from the pull ring (3). The branch pipe (10) is connected to the inner through hole of the fixing ring (1). The side of the branch pipe (10) away from the pull ring (3) has a plug (11). The plug (11) is detachably connected to the branch pipe (10) by threads.
3. The easily adjustable multifunctional ureteral guiding sheath according to claim 2, characterized in that, The upper end of the fixed ring (1) is fixed with a sealing connecting seat and is detachably connected to the connecting bucket (2). The lower end of the connecting bucket (2) is fixed with a limiting protrusion (6). The limiting protrusion (6) is symmetrically arranged on both sides of the axis of the connecting bucket (2). The upper end of the connecting bucket (2) is fixed with a top rod (7). The top rod (7) is located directly above the limiting protrusion (6) and is used for the installation and adjustment of the connecting bucket (2).
4. The adjustable multifunctional ureteral guiding sheath according to claim 3, characterized in that, The connecting bucket (2) is provided with claws (5) on both sides. The lower end of the claws (5) cooperates with the limiting protrusion (6) to limit the position. The upper part of the claws (5) abuts against the top rod (7). The upper end of the claws (5) is provided with a handle (4) for easy adjustment. The connecting seat (8) is symmetrically fixed with rotating connecting seats (9) on both sides and rotatedly connected with the claws (5) to facilitate fixing the relative position of the connecting seat (8).
5. The easily adjustable multifunctional ureteral guiding sheath according to claim 1, characterized in that, The end of the hose (14) away from the fixing ring (1) is fixed with a guide head (15). The guide head (15) is made of rubber and has a groove on the outside. The groove is used to shape the guide head (15). An inner branch tube (16) is sleeved and fixed on the inner side of the hose (14). The inner branch tube (16) is made of metal and is used to support the hose (14) while making it easy to bend and fix into the corresponding shape.