Disposable flexible ureteroscope with locking function

Abstract

This invention relates to a disposable flexible ureteroscope with a locking function. It comprises a housing with an internal connecting post, a catheter located within the housing and extending forward, and a control mechanism. The control mechanism includes a control wheel, an elastic element, and two control cables connecting the control wheel and the catheter tip. The control wheel is pivotally fitted onto the connecting post, forming a mating space with it, and extends outside the housing. The elastic element is located on the control wheel and extends into the mating space, elastically abutting against the connecting post and locking the control wheel. The control wheel pivots and, through the two control cables, bends the catheter tip. The friction between the elastic element and the connecting post locks and positions the control wheel. This eliminates the need for manual positioning, fixing the bending angle of the catheter tip, reducing operational burden, preventing errors, and improving surgical safety.

Claims

1. A disposable flexible ureteroscope with locking function, comprising: a housing having a connecting post formed therein; a catheter disposed on the housing and extending forward of the housing; and a control mechanism comprising a control wheel, an elastic member, and two control cables, the control wheel being pivotally fitted onto the connecting post and forming a mating space with the connecting post, and extending outside the housing, the elastic member being disposed on the control wheel and extending into the mating space, and being elastically abutting against the connecting post and locking the control wheel, the two control cables connecting the control wheel and the front end of the catheter, the control wheel being pivotable and bending the front end of the catheter through the two control cables.

2. The single-use flexible ureteroscope with locking function as described in claim 1, wherein, A limiting groove is formed at the bottom of the housing, and an operating member is formed at the bottom edge of the control wheel. The operating member extends outward from the housing and passes through the limiting groove.

3. A disposable flexible ureteroscope with locking function as described in claim 1, wherein, One side of the control wheel protrudes to form a cable take-up structure, which is arc-shaped. The two control cables are located on the upper and lower sides of the cable take-up structure and are arranged along the periphery of the cable take-up structure.

4. A disposable flexible ureteroscope with locking function as described in claim 2, wherein, One side of the control wheel protrudes to form a cable take-up structure, and the two control cables are respectively located on the upper and lower sides of the cable take-up structure and are arranged along the periphery of the cable take-up structure.

5. A single-use flexible ureteroscope with locking function as described in any one of claims 1 to 4, wherein, One side of the control wheel protrudes to form two sets of structures arranged at intervals. Each set of structures has at least one receiving groove with an opening facing the housing. At least one positioning block is sleeved on one end of each control cable. The positioning blocks of the two control cables can be respectively inserted into the receiving grooves of the two sets of structures, and one end of the two control cables can be respectively fixed to the two sets of structures of the control wheel.

6. A single-use flexible ureteroscope with locking function as described in any one of claims 1 to 4, wherein, The elastic element is made of rubber.

7. A disposable flexible ureteroscope with locking function as described in claim 5, wherein, The elastic element is made of rubber.

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