Flexible ureteroscope guide sheath convenient to adjust length

Abstract

The utility model relates to the technical field of medical instruments, in particular to a flexible ureteroscope guide sheath convenient to adjust in length, which comprises an outer guide sheath and an inner sheath, a through hole is arranged in the outer guide sheath, and the inner sheath is movably sleeved with the through hole. The guide head is arranged at one end of the guide outer sheath and is detachably connected with the guide outer sheath; an outer sheath extension section is detachably connected between the guide head and the guide outer sheath, one end of the outer sheath extension section is connected with the guide outer sheath, and the other end of the outer sheath extension section is connected with the guide head; and scale values are marked on the guide sheath. The outer sheath extension section is detachably connected to the guide outer sheath, so that the length of the guide outer sheath is convenient to adjust, the inner sheath can be long enough to be placed into a required part, a lithotripsy operation is ensured to be carried out smoothly, and clinical requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a ureteroscope guiding sheath which is convenient for adjusting the length. Background Art

[0002] Ureteroscopic sheath (also called ureteroscope delivery sheath) is widely used in ureteroscope holmium laser lithotripsy to treat upper ureteral stones and kidney stones. It is one of the most important auxiliary devices in ureteroscope holmium laser lithotripsy.

[0003] Although there are many different types of ureters on the market, the length of their guide sheaths is immutable or the structural design is too complicated. Due to the immutability of the length of the guide sheath, sometimes the inner sheath cannot be completely placed in the required position through the guide sheath, and thus cannot meet clinical needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a ureteroscope guide sheath which is easy to adjust in length, and can effectively solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is: a ureteroscope guide sheath that is easy to adjust the length, including a guide outer sheath and an inner sheath, the guide outer sheath is provided with a through hole, the inner sheath is movably connected to the through hole, and it is characterized in that it also includes a guide head, the guide head is arranged at one end of the guide outer sheath and is detachably connected to the guide outer sheath; an outer sheath extension section is detachably connected between the guide head and the guide outer sheath, one end of the outer sheath extension section is connected to the guide outer sheath, and the other end is connected to the guide head; the guide outer sheath is marked with scale values.

[0006] Preferably, the outer sheath extension segment includes a first extension segment and a second extension segment, one end of the first extension segment is threadedly connected to one end of the second extension segment, the other end of the first extension segment is threadedly connected to the guide outer sheath, and the other end of the second extension segment is threadedly connected to the guide head.

[0007] Preferably, the seeker comprises a connecting section and an expansion section, and the expansion section is trumpet-shaped.

[0008] Preferably, the outer surface of the connecting section is provided with two groups of mutually symmetrical plane areas, and the plane areas are provided with a plurality of anti-slip protrusions.

[0009] Preferably, the connecting section is provided with a finger ring, and two finger rings are provided, and the two finger rings are symmetrically arranged with each other.

[0010] Preferably, the finger ring and the connecting section are detachably slidably connected.

[0011] Compared with the prior art, the utility model provides a ureteroscope guide sheath that is easy to adjust in length, and has the following beneficial effects:

[0012] The utility model facilitates adjustment of the length of the guiding outer sheath by detachably connecting the outer sheath extension section to the guiding outer sheath, so that the length of the inner sheath can be sufficient to be inserted into a desired position, thereby ensuring smooth lithotripsy surgery and meeting clinical needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the seeker of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the guide head of the utility model.

[0018] Wherein: 1. guide outer sheath, 11. through hole, 2. inner sheath, 3. guide head, 31. connecting section, 31-1. plane area, 31-2. anti-slip convex point, 31-3. finger ring, 32. expansion section, 4. outer sheath extension section, 41. first extension section, 42. second extension section, 5. scale value. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5 The utility model provides a ureteroscope guiding sheath that is easy to adjust the length, including a guiding outer sheath 1 and an inner sheath 2, wherein the guiding outer sheath 1 is provided with a through hole 11, and the inner sheath 2 is movably connected to the through hole 11, and is characterized in that it also includes a guiding head 3, wherein the guiding head 3 is provided at one end of the guiding outer sheath 1 and is detachably connected to the guiding outer sheath 1; an outer sheath extension section 4 is detachably connected between the guiding head 3 and the guiding outer sheath 1, wherein one end of the outer sheath extension section 4 is connected to the guiding outer sheath 1, and the other end is connected to the guiding head 3; and a scale value 5 is marked on the guiding outer sheath 1. With the setting of the scale value 5 on the guiding outer sheath 1, the doctor can better understand the insertion depth of the inner sheath 2.

[0021] Preferably, the outer sheath extension section 4 includes a first extension section 41 and a second extension section 42, one end of the first extension section 41 is threadedly connected to one end of the second extension section 42, the other end of the first extension section 41 is threadedly connected to the guide outer sheath 1, and the other end of the second extension section 42 is threadedly connected to the guide head 3.

[0022] Preferably, the guide head 3 includes a connecting section 31 and an expansion section 32 , and the expansion section 32 is trumpet-shaped, which is conducive to better guiding the inner sheath 2 into the through hole 11 .

[0023] Preferably, the outer surface of the connecting section 31 is provided with two sets of mutually symmetrical plane areas 31 - 1 , and the plane areas 31 - 1 are provided with a plurality of anti-slip protrusions 31 - 2 .

[0024] Preferably, the connecting section 31 is provided with a finger ring 31 - 3 , and two finger rings 31 - 3 are provided, and the two finger rings 31 - 3 are symmetrically arranged with each other.

[0025] The setting of the flat area 31-1 and the anti-slip protrusions 31-2 or the finger ring 31-3 on the connecting section 31 helps the doctor to better hold the guide sheath 1; the guide head 3 and the guide sheath 1 or the sheath extension section 4 are detachable, and the doctor can choose a finger-ring type guide head 3 or a flat guide head 3 with anti-slip protrusions 31-2 according to habit, thereby improving the practicality of the guide sheath 1.

[0026] Preferably, the finger ring 31 - 3 and the connecting section 31 are detachably slidably connected; when not in use, the finger ring 31 - 3 can be removed for easy storage.

[0027] As a specific embodiment of the utility model:

[0028] When in use, the inner sheath 2 enters through the through hole 11 on the guide outer sheath 1. After the inner sheath 2 is sleeved on the guide outer sheath 1, if the length of the inner sheath 2 does not reach the required part, the inner sheath 2 can be pulled out, the second extension section 42 can be disassembled, and the guide head 3 can be connected to the first extension section 41, thereby shortening the overall length of the guide outer sheath 1, so that the length of the inner sheath 2 is sufficient to be placed in the required part, ensuring that the lithotripsy operation proceeds smoothly. Depending on the situation, the first extension section 41 and the second extension section 42 can be disassembled at the same time, so that the guide head 3 can be connected to the guide outer sheath 1, which is convenient for adjusting the length of the guide outer sheath 1.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ureteroscope guide sheath that is easy to adjust in length, comprising an outer guide sheath (1) and an inner sheath (2), wherein the outer guide sheath (1) is provided with a through hole (11), and the inner sheath (2) is movably connected to the through hole (11), characterized in that: The invention also comprises a guide head (3), wherein the guide head (3) is arranged at one end of the guide outer sheath (1) and is detachably connected to the guide outer sheath (1); an outer sheath extension section (4) is detachably connected between the guide head (3) and the guide outer sheath (1); one end of the outer sheath extension section (4) is connected to the guide outer sheath (1), and the other end is connected to the guide head (3); and the guide outer sheath (1) is marked with scale values.

2. A ureteroscope guide sheath that is easy to adjust in length according to claim 1, characterized in that: The outer sheath extension section (4) comprises a first extension section (41) and a second extension section (42), one end of the first extension section (41) is threadedly connected to one end of the second extension section (42), the other end of the first extension section (41) is threadedly connected to the guide outer sheath (1), and the other end of the second extension section (42) is threadedly connected to the guide head (3).

3. The ureteroscope guide sheath with easily adjustable length according to claim 2, characterized in that: The seeker (3) comprises a connecting section (31) and an expansion section (32), and the expansion section (32) is in a trumpet shape.

4. The ureteroscope guide sheath with easily adjustable length according to claim 3, characterized in that: The outer surface of the connecting section (31) is provided with two groups of mutually symmetrical plane areas (31-1), and a plurality of anti-slip convex points (31-2) are provided on the plane areas (31-1).

5. The ureteroscope guide sheath with easily adjustable length according to claim 3, characterized in that: The connecting section (31) is provided with a finger ring (31-3), and two of the finger rings (31-3) are provided, and the two finger rings (31-3) are symmetrically arranged with respect to each other.

6. The ureteroscope guide sheath with easily adjustable length according to claim 5, characterized in that: The finger ring (31-3) and the connecting section (31) are detachably slidably sleeved.

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