Flexible ureteroscope leading-in sheath with adjustable tube diameter and capable of displaying tube diameter

A technology of flexible ureteroscope and display tube, which is applied in urethroscope, cystoscope, medical science, etc. It can solve the problems of high equipment cost, uncertainty, increase of patient operation cost and clinical treatment cycle, etc., to ensure accuracy, Guaranteed closure effect

CN112568945AActive Publication Date: 2021-03-30BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-03-30

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Abstract

The invention discloses a flexible ureteroscope leading-in sheath with an adjustable tube diameter and capable of displaying the tube diameter. The flexible ureteroscope leading-in sheath comprises acatheter body with a tube cavity, the catheter body is arranged to be an arc-shaped piece with a first opening edge and a second opening edge, and an overlapping area is formed between the first opening edge and the second opening edge; the first end of the catheter body is provided with an adjusting assembly used for controlling the inner diameter of a catheter cavity of the catheter body, and the adjusting assembly is connected with the catheter body. The adjusting assembly comprises a first arc-shaped operating rod arranged at the first end of the arc-shaped piece and a rotating wheel arranged at the first end of the first arc-shaped operating rod. Medical staff operate the rotating wheel clockwise or anticlockwise to achieve the purpose that the pipe diameter of the catheter body is increased or decreased according to actual use requirements.
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Description

technical field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a flexible ureteroscope introduction sheath with adjustable diameter and display diameter. Background technique

[0002] The flexible ureteroscope technology is a new technology for upper ureteral stones and kidney stones. During the operation, the sheath needs to be introduced as a tunnel to assist the flexible mirror to enter the surgical site. At present, the difficulties in domestic and foreign literature reports lie in the following points:

[0003] 1. It is necessary to indwell a ureteral stent in the patient before the operation to promote the passive expansion of the ureter, so as to increase the success rate of inserting the sheath during the soft mirror operation. However, during the indwelling period of the ureteral stent, the patient needs to endure normal complications such as frequent urination, urgency, low back pain, hematuria, etc. , and the ...

Examples

Embodiment 1

[0046] Example 1 A flexible ureteroscope introduction sheath with adjustable diameter and display diameter

[0047] A flexible ureteroscope introduction sheath with adjustable diameter and displaying the diameter of the ureteroscope, which includes a catheter body 1 with a lumen; its feature is that the catheter body 1 is configured to have a first opening edge 11 and a second opening The arc-shaped sheet of the side 12 has an overlapping area between the first opening side 11 and the second opening side 12; the first end of the catheter body 1 is provided with an adjustment assembly for controlling the inner diameter of the catheter body 1 lumen, and the adjustment assembly and the catheter The main body 1 is connected; the adjustment assembly includes a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped sheet, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; The rotating wheel 15 is operated counterclockwi...

Embodiment 2

[0064] Example 2 A flexible ureteroscope introduction sheath with adjustable diameter and display diameter

[0065] A flexible ureteroscope introduction sheath with adjustable diameter and displaying the diameter of the ureteroscope, which includes a catheter body 1 with a lumen; its feature is that the catheter body 1 is configured to have a first opening edge 11 and a second opening The arc-shaped sheet of the side 12 has an overlapping area between the first opening side 11 and the second opening side 12; the first end of the catheter body 1 is provided with an adjustment assembly for controlling the inner diameter of the catheter body 1 lumen, and the adjustment assembly and the catheter The main body 1 is connected; the adjustment assembly includes a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped sheet, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; The rotating wheel 15 is operated counterclockwi...

Embodiment 3

[0082] Example 3 A flexible ureteroscope introduction sheath with adjustable diameter and display diameter

[0083] A flexible ureteroscope introduction sheath with adjustable diameter and displaying the diameter of the ureteroscope, which includes a catheter body 1 with a lumen; its feature is that the catheter body 1 is configured to have a first opening edge 11 and a second opening The arc-shaped sheet of the side 12 has an overlapping area between the first opening side 11 and the second opening side 12; the first end of the catheter body 1 is provided with an adjustment assembly for controlling the inner diameter of the catheter body 1 lumen, and the adjustment assembly and the catheter The main body 1 is connected; the adjustment assembly includes a first arc-shaped operating rod 14 arranged at the first end of the arc-shaped sheet, and a rotating wheel 15 arranged at the first end of the first arc-shaped operating rod 14; The rotating wheel 15 is operated counterclockwi...