Visual ureteral guiding sheath

Abstract

This invention is a visual ureteral guiding sheath, comprising a sheath component and an expansion component detachably inserted into the sheath component. The sheath component includes an operating part and a catheter part located on the operating part and extending forward, with a deformable section at its anterior end. The expansion component includes a gripping part and a transparent tube part located on the gripping part and extending forward, with a curved section at its anterior end. The transparent tube part can extend into the operating part and the catheter part and protrude from the end of the catheter part. This allows the physician to insert a flexible ureteroscope into the transparent tube part without obstructing the endoscope lens, enabling simultaneous acquisition of the patient's internal image during the insertion of the visual ureteral guiding sheath. In addition, the deformable and curved sections are flexible and can be adjusted to a suitable bending angle when passing through tortuous areas, which helps to improve the accuracy, safety, and efficiency of insertion.

Claims

1. A visual ureteral guiding sheath, comprising: a sheath member including an operating portion and a catheter portion, the catheter portion being disposed on the operating portion and extending toward a forward end of the operating portion, and having a flexible deformable section formed at its forward end; and an expansion member detachably inserted into the sheath member, including a grip portion and a transparent tube portion, the transparent tube portion being disposed on the grip portion and extending toward a forward end of the grip portion, and capable of extending into the interior of the operating portion and the catheter portion of the sheath member, and extending out from the end of the catheter portion, the forward end of the transparent tube portion having a flexible curved section formed at its forward end.

2. The visual ureteral guiding sheath as described in claim 1, wherein, An elastic element is provided around the inner wall of the deformable section of the sheath component.

3. The visual ureteral guiding sheath as described in claim 1, wherein, The periphery of the curved section of the transparent tube of the expansion member is formed with a plurality of spaced perforations.

4. The visual ureteral guiding sheath as described in claim 2, wherein, The periphery of the curved section of the transparent tube of the expansion member is formed with a plurality of spaced perforations.

5. A visual ureteral guiding sheath as described in any one of claims 1 to 4, wherein, The end of the transparent tube of the expansion member is tapered.

6. A visual ureteral guiding sheath as described in any one of claims 1 to 4, wherein, The outer peripheral wall of the operating part of the sheath member has at least one connecting tube, which extends in a direction away from the operating part and can connect to the conduit part.

7. The visual ureteral guiding sheath as described in claim 5, wherein, The outer peripheral wall of the operating part of the sheath member has at least one connecting tube, which extends in a direction away from the operating part and can connect to the conduit part.

8. A visual ureteral guiding sheath as described in any one of claims 1 to 4, wherein, The operating part of the sheath component has a set of openings on the opposite side of the conduit portion. The set of openings can communicate with the conduit portion. The sheath component includes a cap that is connected to the operating part and can be detachably installed in the set of openings.

9. The visual ureteral guiding sheath as described in claim 5, wherein, The operating part of the sheath component has a set of openings on the opposite side of the conduit portion. The set of openings can communicate with the conduit portion. The sheath component includes a cap that is connected to the operating part and can be detachably installed in the set of openings.

10. The visual ureteral guiding sheath as described in claim 6, wherein, The operating part of the sheath component has a set of openings on the opposite side of the conduit portion. The set of openings can communicate with the conduit portion. The sheath component includes a cap that is connected to the operating part and can be detachably installed in the set of openings.

11. The visual ureteral guiding sheath as described in claim 7, wherein, The operating part of the sheath component has a set of openings on the opposite side of the conduit portion. The set of openings can communicate with the conduit portion. The sheath component includes a cap that is connected to the operating part and can be detachably installed in the set of openings.

Images