Adjustable cystoscope sheath

Abstract

The utility model relates to the technical field of cystoscope sheaths, and provides an adjustable cystoscope sheath which comprises a sheath body, the sheath body comprises a first sheath shell and a second sheath shell, a telescopic groove is formed in the inner side of the first sheath shell, one end of the first sheath shell is fixedly connected with the second sheath shell, and the other end of the first sheath shell is fixedly connected with the second sheath shell. One end of the second sheath shell is inserted into the inner side of the telescopic groove, a guide core assembly is inserted into the inner side of the outer sheath body, and the guide core assembly comprises an operating rod, a guide core, an adjusting sleeve and a clamping plate. The guide core of the guide core assembly is inserted into the inner side of the outer sheath body, meanwhile, the elastic clamping plate of the guide core assembly is clamped outside the outer sheath body, the ring diameter of the outer sheath body is reduced through elastic pressure, the outer sheath body can be conveniently inserted into the inner side of the urethra of a patient, and when the urethra of the patient needs to be expanded after insertion, the guide core is pulled out; the sheath body is expanded under the action of self elasticity, so that the whole urethra of a patient is expanded at a time, expansion is gentle and stable, and the urethra of the patient is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of cystoscope outer sheaths, in particular to an adjustable cystoscope outer sheath. Background Art

[0002] Cystoscope is a complex optical endoscope with many types and different structures, but the main components are sheath, endoscope, intubation scope, obturator, accessories and other structures. The function of the sheath is to smoothly introduce the endoscope. The outer sheath of the cystoscope and transurethral prostate resectoscope currently used is fixed in size. When the urethra is relatively narrow, it is difficult to insert the sheath, and additional tools are needed to dilate the urethra. The dilation tool is generally inserted from the front end of the urethra and gradually dilates, which can easily damage the patient's urethra. When a small outer sheath is used, the matching small cystoscope operating lumen is small, which reduces the efficiency of the operation and narrows the field of view.

[0003] Therefore, there is a need for an adjustable cystoscope sheath that can dilate the patient's urethra at one time, and the dilation is relatively gentle to avoid damaging the patient's urethra, and can flexibly adjust the degree of dilation of the patient's urethra according to the patient's condition. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes an adjustable cystoscope sheath, which has the characteristics of convenient adjustment, convenient expansion of the patient's urethra, gentle expansion operation, and avoidance of damage to the patient's urethra.

[0005] In order to achieve the above purpose, the utility model proposes the following specific solutions:

[0006] An adjustable cystoscope sheath comprises a sheath body, the sheath body comprises a first sheath shell and a second sheath shell, a telescopic groove is opened on the inner side of the first sheath shell, one end of the first sheath shell is fixedly connected with the second sheath shell, one end of the second sheath shell is inserted into the inner side of the telescopic groove, a guide core assembly is inserted into the inner side of the sheath body, the guide core assembly comprises an operating rod, a guide core, an adjustment sleeve and a clamping plate, a guide core is fixedly connected to the middle part of one end of the operating rod, an adjustment sleeve is sleeved on the outer side of the guide core, the adjustment sleeve is sleeved on the inner side of the sheath body, a clamping plate is symmetrically fixedly provided on the outer wall of the operating rod, and the clamping plate is located on the outer side of the sheath body.

[0007] As a preferred technical solution of the adjustable cystoscope sheath of the utility model, a slot is provided on one side wall edge of the operating rod, and one end of the adjustment sleeve is inserted into the inner side of the slot.

[0008] As a preferred technical solution of the adjustable cystoscope sheath of the utility model, a friction groove is provided on the outer wall of one end of the adjustment sleeve.

[0009] As a preferred technical solution of the adjustable cystoscope sheath of the utility model, there are multiple slots and multiple adjustment sleeves.

[0010] As the preferred technical solution for the adjustable cystoscope sheath of the utility model, the clamping plate includes an elastic splint and an extrusion plate, the elastic splint is C-shaped, one end of the elastic splint is fixedly connected to the outer wall of the operating rod, and the other end of the elastic splint is fixedly provided with an extrusion plate, and the extrusion plate is located on the outside of the outer sheath body.

[0011] As a preferred technical solution for the adjustable cystoscope sheath of the utility model, a blocking piece is fixedly provided on the top of one end of the sheath body.

[0012] As a preferred technical solution for the adjustable cystoscope sheath of the utility model, a protective strip is fixedly provided on the edge of the telescopic slot, and the protective strip is made of a flexible material.

[0013] As a preferred technical solution for the adjustable cystoscope sheath of the utility model, both the first sheath shell and the second sheath shell are made of elastic material.

[0014] Compared with the existing technology, the utility model has the following beneficial effects:

[0015] The utility model provides an outer sheath body and a guide core assembly, and an elastic outer sheath body. The outer sheath body is annular and consists of a first sheath shell and a second sheath shell. One end of the second sheath shell is inserted into the inner side of one end of the first sheath shell. The second sheath shell can move inside the first sheath shell under pressure, thereby reducing the circle diameter of the overall sheath shell. The guide core of the guide core assembly is inserted into the inner side of the outer sheath body, and the elastic splint of the guide core assembly is clamped on the outside of the outer sheath body. The circle diameter of the outer sheath body is reduced by elastic pressure, and the inner guide core is used to support the outer sheath body, so that the outer sheath body is stably reduced, which is convenient for insertion into the inner side of the patient's urethra. When the patient's urethra needs to be expanded after insertion, the guide core assembly can be withdrawn, so that the outer sheath body is expanded under the action of its own elastic force, thereby expanding the patient's urethra as a whole at one time, and the expansion is gentle and stable, avoiding damage to the patient's urethra, and the operation is convenient, which is convenient for subsequent insertion of a cystoscope and has a wide field of view and high observation efficiency.

[0016] And through the setting of the adjustment sleeve, the adjustment sleeve is arranged on the outside of the guide core, and the outer sheath body is supported from the inside by the adjustment sleeve, so that the ring diameter of the outer sheath body after being squeezed by the elastic splint can be adjusted, which is convenient for adjustment according to patients of different body sizes, and when the patient's urethra is subsequently expanded, adjustment sleeves of different sizes can be arranged on the outside of the guide core according to the expansion needs, and the outer sheath body can expand the patient's urethra to the required size through the support of the guide core to the inside of the outer sheath body, which is easy to operate and convenient for surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0020] Figure 3 It is a side view of the outer sheath body of the utility model;

[0021] Figure 4 It is a top view of the outer sheath body and the guide core assembly of the utility model;

[0022] Figure 5 For the utility model Figure 2 A magnified schematic diagram of center A.

[0023] In the figure: 1. outer sheath body; 11. first sheath shell; 111. telescopic slot; 112. protective strip; 12. second sheath shell; 13. baffle; 2. core guide assembly; 21. operating rod; 211. slot; 22. core guide; 23. adjustment sleeve; 231. friction slot; 24. clamping plate; 241. elastic clamp; 242. extrusion plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See also Figure 1-5 As shown, the utility model provides the following technical solutions: an adjustable cystoscope sheath comprises a sheath body 1, the sheath body 1 comprises a first sheath shell 11 and a second sheath shell 12, which can be referred to in the attached Figure 3 A telescopic groove 111 is opened on the inner side of the first sheath shell 11, and one end of the first sheath shell 11 is fixedly connected to the second sheath shell 12, and one end of the second sheath shell 12 is inserted into the inner side of the telescopic groove 111. One end of the second sheath shell 12 can move inside the first sheath shell 11, so as to adjust the diameter of the outer sheath body 1; the first sheath shell 11 and the second sheath shell 12 are both made of elastic material, and can automatically elastically recover after removing the external shielding, thereby expanding the diameter of the outer sheath body 1.

[0027] Reference Figure 1 , Figure 2 and Figure 4 As shown, specifically, a guide core assembly 2 is inserted into the inner side of the outer sheath body 1, and the guide core assembly 2 includes an operating rod 21, a guide core 22, an adjusting sleeve 23 and a clamping plate 24. A guide core 22 is fixedly connected to the middle part of one end of the operating rod 21, and the guide core 22 can support the outer sheath body 1 from the inside. An adjusting sleeve 23 is sleeved on the outer side of the guide core 22, and the adjusting sleeve 23 is sleeved on the inner side of the outer sheath body 1. A clamping plate 24 is symmetrically fixedly provided on the outer wall of the operating rod 21, and the clamping plate 24 is located on the outer side of the outer sheath body 1; the clamping plate 24 includes an elastic clamping plate 241 and an extrusion plate 242, the elastic clamping plate 241 is C-shaped, one end of the elastic clamping plate 241 is fixedly connected to the outer wall of the operating rod 21, and the other end of the elastic clamping plate 241 is fixedly connected to the outer wall of the operating rod 21. A squeezing plate 242 is fixedly provided at one end, and the squeezing plate 242 is located on the outside of the outer sheath body 1. The outer sheath body 1 can be squeezed from the outside by a splint made of elastic material to reduce its diameter. When performing cystoscopy on a patient, the present invention can insert the guide core 22 into the inner side of the outer sheath body 1 for support, and at the same time squeeze the outer sheath body 1 by an external elastic splint 241 to reduce the diameter of the outer sheath body 1, making it easier to insert the outer sheath body 1 into the patient's urethra. When the patient's urethra needs to be expanded subsequently, the guide core assembly 2 is pulled out, so that the outer sheath body 1 recovers under the action of its own elastic force, thereby expanding the patient's urethra. The operation is convenient, and the patient's urethra can be expanded quickly and stably, avoiding damage to the patient's urethra, and making it easier to use a cystoscope of a suitable size for inspection.

[0028] Reference Figure 2 and Figure 5 As shown, specifically, a slot 211 is provided on the edge of one side wall of the operating rod 21, and one end of the adjusting sleeve 23 is inserted into the inner side of the slot 211 for easy disassembly; a friction groove 231 is provided on the outer wall of one end of the adjusting sleeve 23 for friction limiting and stable installation; there are multiple slots 211 and multiple adjusting sleeves 23; in this scheme, by providing multiple adjusting sleeves 23, when the outer sheath diameter is reduced by the elastic splint 241, the outer sheath can be supported from the inside by installing adjusting sleeves 23 of different sizes, so that the outer sheath can maintain a certain diameter according to the patient's body shape. When the patient's urethra is subsequently expanded, if the expansion degree does not meet the requirements, the outer sheath diameter can also be expanded to the required size by inserting adjusting sleeves 23 of different sizes, so as to facilitate surgical operation.

[0029] Reference Figure 3 and Figure 5 As shown, specifically, a baffle 13 is fixedly provided on the top of one end of the outer sheath body 1; this is convenient for limiting the outer sheath body 1 to avoid the inconvenience of taking it out deep into the patient's urethra; a protective strip 112 is fixedly provided on the edge of the telescopic groove 111, and the protective strip 112 is made of a flexible material; the protective strip 112 made of a flexible material protects the edge of the outer sheath to avoid scratching the patient's urethra.

[0030] The working principle and use process of the utility model are as follows: when performing cystoscopic examination on a patient, according to the size of the patient's urethra, a suitable adjustment sleeve 23 is selected and sleeved on the outside of the guide core 22, and then the guide core 22 is inserted into the inner side of the outer sheath for support, and then the elastic splint 241 is clamped on the outside of the outer sheath to compress the outer sheath diameter, so that the outer sheath is convenient to insert into the patient's urethra after shrinking. After the insertion, when the patient's urethra needs to be expanded, the guide core 22 is pulled out, and the outer sheath is restored under the action of its own elastic force, thereby expanding the patient's urethra. If the expansion degree is insufficient, the outer sheath can be expanded by inserting adjustment sleeves 23 of different sizes, which is easy to operate, and then the cystoscope can be inserted for surgical operation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adjustable cystoscope sheath, comprising a sheath body (1), characterized in that: The outer sheath body (1) comprises a first sheath shell (11) and a second sheath shell (12), the inner side of the first sheath shell (11) is provided with a telescopic groove (111), one end of the first sheath shell (11) is fixedly connected with the second sheath shell (12), one end of the second sheath shell (12) is inserted into the inner side of the telescopic groove (111), the inner side of the outer sheath body (1) is inserted with a core guide assembly (2), the core guide assembly (2) comprises an operating rod (21), a core guide (22), an adjustment sleeve (23) and a clamping plate (24), the middle part of one end of the operating rod (21) is fixedly connected with the core guide (22), the outer side of the core guide (22) is sleeved with an adjustment sleeve (23), the adjustment sleeve (23) is sleeved on the inner side of the outer sheath body (1), the outer wall of the operating rod (21) is symmetrically fixed with a clamping plate (24), and the clamping plate (24) is located on the outer side of the outer sheath body (1).

2. The adjustable cystoscope sheath according to claim 1, characterized in that: A slot (211) is provided on one side wall edge of the operating rod (21), and one end of the adjustment sleeve (23) is inserted into the inner side of the slot (211).

3. The adjustable cystoscope sheath according to claim 2, characterized in that: A friction groove (231) is formed on the outer wall of one end of the adjustment sleeve (23).

4. The adjustable cystoscope sheath according to claim 3, characterized in that: The slots (211) are provided in plurality, and the adjustment sleeves (23) are provided in plurality.

5. The adjustable cystoscope sheath according to claim 4, characterized in that: The clamping plate (24) comprises an elastic clamping plate (241) and an extrusion plate (242); the elastic clamping plate (241) is C-shaped; one end of the elastic clamping plate (241) is fixedly connected to the outer wall of the operating rod (21); the other end of the elastic clamping plate (241) is fixedly provided with an extrusion plate (242); and the extrusion plate (242) is located on the outer side of the outer sheath body (1).

6. The adjustable cystoscope sheath according to claim 5, characterized in that: A blocking piece (13) is fixedly provided on the top of one end of the outer sheath body (1).

7. The adjustable cystoscope sheath according to claim 6, characterized in that: A protective strip (112) is fixedly provided on the edge of the telescopic slot (111), and the protective strip (112) is made of a flexible material.

8. The adjustable cystoscope sheath according to claim 7, characterized in that: The first sheath (11) and the second sheath (12) are both made of elastic material.

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