Endoscope sheath

Abstract

The utility model discloses an endoscope sheath, belongs to the technical field of medical instruments, and aims to solve the technical problems that in the prior art, a locking structure is complex, an endoscope needs to be disinfected after being used every time, and the service life of the endoscope is affected. The endoscope comprises an endoscope body and an endoscope sheath connected with the endoscope body in a matched mode. The endoscope sheath comprises a main body structure, a sheath tube communicated with one end of the main body structure, a locking piece used for connecting the endoscope and the main body structure and a water injection assembly arranged outside the main body structure in a sleeving mode. An endoscope sleeve is further arranged in the endoscope sheath and used for wrapping the endoscope and preventing the endoscope from making direct contact with the surgical site. The endoscope sheath provided by the utility model is simple and reliable in structure, and can effectively reduce the disinfection frequency of an endoscope, thereby prolonging the service life of the endoscope.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an endoscope sheath. Background Art

[0002] An endoscope is a commonly used inspection instrument in the medical field. It integrates components such as an image sensor, an optical lens, a light source illumination, and a mechanical device. During use, it enters the human body through a natural or artificial orifice. During surgery, the endoscope is usually used in cooperation with a sheath. The sheath wraps and fixes the endoscope. On the one hand, it protects the endoscope from being damaged by other surgical instruments during the operation. At the same time, a normal saline perfusion or suction channel is formed between the sheath and the endoscope.

[0003] The sheath generally includes a sheath tube, a main body structure, a water injection assembly, and a locking mechanism. The sheath tube is arranged at the front end of the main body structure and is communicated with the main body structure. A hole is arranged on the main body structure. The water injection assembly is arranged around the main body structure and is communicated with the hole thereon. The locking mechanism is arranged at the rear end of the main body structure and is used for connecting and locking between the sheath and the endoscope.

[0004] A existing locking mechanism can be referred to the Chinese utility model patent with the application number 202322575127.3. Although its locking effect is good, it has more components and a more complex structure, resulting in cumbersome manufacturing processes. In addition, during the UBE surgery, the part of the endoscope inserted into the human body is contaminated with body fluid. Therefore, it must be strictly cleaned and disinfected after each use before it can be used again. However, multiple disinfections will reduce the service life of the endoscope, and the disinfection process is time-consuming. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an endoscope sheath to solve the technical problems in the prior art that the locking structure is relatively complex and the endoscope needs to be disinfected after each use, thus affecting the working life of the endoscope.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An endoscope sheath provided by the utility model includes a main body structure, a sheath tube communicated with one end of the main body structure, a locking member for cooperating with and fixing the endoscope, and a water injection assembly sleeved outside the main body structure;

[0008] An endoscope sleeve is further arranged in the sheath, and the endoscope sleeve is used for wrapping the endoscope and preventing the endoscope from directly contacting the surgical site.

[0009] In this utility model, by adding an endoscope sleeve inside the mirror sheath, when the endoscope is in use, the endoscope is completely wrapped in the endoscope sleeve, thus avoiding direct contact between the endoscope and the surgical site. Therefore, the endoscope does not need to be repeatedly disinfected after use, and thus the service life of the endoscope is prolonged.

[0010] Optionally or preferably, the main body structure includes a locking section. A plurality of grooves are circumferentially arranged on the outer surface of the locking section, and a first clamping groove is axially arranged on the inner surface of the locking section;

[0011] The endoscope sleeve includes an interface, a flexible tube and a lens hood which are arranged in sequence. A first protruding part is axially arranged at the end of the interface, and a first clamping part is arranged on the side wall of the interface;

[0012] The first clamping part is snap-connected with the first clamping groove.

[0013] Optionally or preferably, the locking piece is sleeved outside the locking section. The locking piece includes an end face and a side wall surrounding the end face;

[0014] A plurality of notches are arranged on the end face of the locking piece, and a plurality of second clamping parts are circumferentially arranged on the inner side wall of the locking piece. The plurality of second clamping parts are engaged with the plurality of grooves.

[0015] In this utility model, the locking and connection of the endoscope and the mirror sheath are realized through the locking piece. Compared with the existing locking structure, the number of its structural components is significantly reduced, and the structure is relatively simple and reliable.

[0016] Optionally or preferably, a connection component matched with the mirror sheath is arranged on the endoscope. The connection component includes a plurality of symmetrically arranged ears protruding radially outward and a second clamping groove axially arranged. The shape of the ears corresponds to the shape of the notches;

[0017] The locking piece is used for being snap-connected with the ears, and the first protruding part is used for being snap-connected with the second clamping groove.

[0018] Optionally or preferably, the locking piece has a gradually thickened end face;

[0019] The endoscope is snap-connected with the locking piece having the gradually thickened end face through the ears.

[0020] Optionally or preferably, the locking piece is integrally in a flat cylindrical shape, and an uneven contact layer is arranged on the side wall of the locking piece.

[0021] Optionally or preferably, the main body structure further includes a water injection section and a limiting section. The locking section, the water injection section and the limiting section are sequentially connected. The water injection assembly is sleeved outside the water injection section and is communicated with the water injection section.

[0022] Optionally or preferably, the mirror sheath further includes a limiting member, which is threadedly connected to the limiting section and is used to limit the water injection assembly;

[0023] The sheath tube is fixedly connected to the limiting section.

[0024] Based on the above technical solution, the present utility model can at least produce the following technical effects:

[0025] An endoscope mirror sheath provided by the present utility model, by adding an endoscope sleeve inside the mirror sheath, when used in cooperation with an endoscope, the endoscope is completely wrapped inside the endoscope sleeve, thereby avoiding direct contact between the endoscope and the surgical site. Therefore, disinfection is not required after use, and thus the service life of the endoscope is extended;

[0026] In addition, the endoscope and the mirror sheath are connected and locked through a locking member. In the present utility model, the components of the locking structure are significantly reduced, and the structure is relatively simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structural schematic diagram of the endoscope mirror sheath of the present utility model;

[0028] Figure 2 is the structural schematic diagram of the endoscope in the endoscope mirror sheath of the present utility model;

[0029] Figure 3 is Figure 2 the partial enlarged view of part A in

[0030] Figure 4 is the front structural schematic diagram of the mirror sheath in the endoscope mirror sheath of the present utility model;

[0031] Figure 5 is the structural schematic of the main body structure in the endoscope mirror sheath of the present utility model Figure 1 ;

[0032] Figure 6 is the structural schematic of the main body structure in the endoscope mirror sheath of the present utility model Figure 2 ;

[0033] Figure 7 is the structural schematic diagram of the endoscope sleeve in the endoscope mirror sheath of the present utility model;

[0034] Figure 8 is Figure 7 the partial enlarged view of part B in

[0035] Figure 9 is the structural schematic of the locking member in the endoscope mirror sheath of the present utility model Figure 1 ;

[0036] Figure 10Structural schematic of the locking member in the endoscope sheath of the present utility model Figure 2 。

[0037] In the figure: 10, endoscope; 11, ear part; 12, second card slot; 20, sheath; 21, sheath tube; 22, main body structure; 221, locking section; 222, water injection section; 2211, groove; 2212, first card slot; 223, limiting section; 23, water injection assembly; 24, endoscope sleeve; 241, interface; 2411, first protruding part; 2412, first clamping part; 242, hose; 243, lens hood; 25, locking member; 251, clamping part; 252, gradually thickened end face; 253, notch; 26, limiting member. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0039] Embodiment

[0040] Please refer to Figure 1 , an endoscope sheath, which includes an endoscope 10 and a sheath 20 cooperatively connected to the endoscope 10.

[0041] Please refer to Figures 2 to 3 , in this embodiment, a connection assembly cooperatively connected to the sheath 20 is provided on the endoscope 10; specifically, the connection assembly includes two symmetrically arranged ear parts 11 protruding radially outward and a second card slot 12 arranged axially.

[0042] Please refer to Figure 4 , in this embodiment, the sheath 20 includes a main body structure 22, a sheath tube 21 communicated with one end of the main body structure 22, a locking member 25 for connecting the endoscope 10 and the main body structure 22, and a water injection assembly 23 sleeved outside the main body structure 22.

[0043] Please refer to Figure 5 , the above-mentioned main body structure includes a locking section 221, a water injection section 222 and a limiting section 223 connected in sequence; among them, three to four holes are axially opened on the water injection section 222, and the water injection assembly 23 is sleeved outside the water injection section 222 and communicated with the water injection section 222.

[0044] The outer wall of the limiting section 223 is provided with threads, and the limiting member 26 is threadedly connected to the limiting section 223 through these threads; in this embodiment, the limiting member 26 is used to limit the water injection assembly 23; the sheath 21 is embedded in the counterbore of the limiting section 223 and fixedly connected by welding.

[0045] Please refer to Figures 5 to 6 , in this embodiment, the locking member 25 is used to connect and lock the endoscope 10 and the mirror sheath 20; two grooves 2211 are circumferentially arranged on the outer surface of the locking section 221, and a first clamping groove 2212 is axially arranged on its inner surface.

[0046] Please refer to Figures 7 to 8 , in order to prevent the endoscope 10 from directly contacting the surgical site, in this embodiment, an endoscope sleeve 24 is additionally provided in the mirror sheath 20; specifically, the endoscope sleeve 24 includes an interface 241, a hose 242 and a mirror cover 243 arranged in sequence; among them, the material of the interface 241 is ABS, PVC, etc.; the material of the hose 242 is a thin-walled tube with certain elasticity such as TPU, PVC, etc.; the mirror cover 243 can be made of high light-transmitting materials such as PC; the mirror cover 243 is fixed to the front end of the hose 242, and the rear end of the hose 242 is sleeved on the outer side of the front end of the interface 241, and the joints of the three components can be fixed by methods such as dotting; a first protrusion 2411 is axially arranged at the end head of the interface 241, and a first clamping portion 2412 is arranged on the side wall of the interface 241. After the endoscope sleeve 24 is installed in the mirror sheath 20, the first clamping portion 2412 is snap-connected to the first clamping groove 2212; the first protrusion 2411 is snap-connected to the second clamping groove 12. In addition, other positions between the endoscope sleeve 24 and the mirror sheath 20 can be fixed by gluing.

[0047] Please refer to Figures 9 to 10 , in this embodiment, the locking member 25 includes an end face and a side wall surrounding the end face. Two notches 253 are arranged on the end face of the locking member 25, and the shapes of the two notches 253 correspond to the two ears 11 in the endoscope 10, so that the endoscope 10 can smoothly pass through the locking member 25; a plurality of second clamping portions 251 are circumferentially arranged on the inner side wall of the locking member 25, and the plurality of second clamping portions 251 are snap-connected to the grooves 2211 in the locking section 221.

[0048] In this embodiment, the locking member 25 is integrally in the shape of a flat cylinder, and an uneven contact layer is arranged on the side wall of the locking member 25 to facilitate the rotation or holding operation by the operator.

[0049] Please continue to refer to Figure 10 , in this embodiment, the locking member 25 has a gradually thickened end face 252, and the endoscope 10 is tightly connected to the locking member 25 with the gradually thickened end face 252 through the ears 11.

[0050] In actual work, the operator needs to align and insert the two ears 11 of the endoscope 10 into the two notches 253 on the locking member 25 until the protrusion 241 on the endoscope sleeve 24 is caught in the second slot 12 on the endoscope 10, and then rotate the locking member 25 along the direction from thin to thick of the tapered end face 252 of the locking member 25, so that an interference fit is formed between the two ears 11 of the endoscope 10 and the tapered end face 252 of the locking member 25, thereby locking the endoscope; at this time, the second engaging portion 251 on the inner side wall of the locking member 25 just abuts against the ends of the two grooves 2211 on the locking section 221 and cannot be rotated further.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An endoscope sheath, characterized in that, It includes a main body structure (22), a sheath tube (21) communicating with one end of the main body structure (22), a locking member (25) for cooperating and fixing with an endoscope (10), and a water injection assembly (23) sleeved outside the main body structure (22); An endoscope sleeve (24) is further arranged inside the mirror sheath (20), and the endoscope sleeve (24) is used for wrapping the endoscope (10) and preventing the endoscope (10) from directly contacting the surgical site.

2. The endoscope sheath according to claim 1, characterized in that, The main body structure (22) includes a locking section (221), on the outer surface of the locking section (221), a plurality of grooves (2211) are arranged along the circumferential direction, and on the inner surface of the locking section (221), a first clamping groove (2212) is arranged along the axial direction; The endoscope sleeve (24) includes an interface (241), a flexible tube (242) and a lens hood (243) arranged in sequence. At the end of the interface (241), a first protrusion (2411) is arranged along the axial direction, and on the side wall of the interface (241), a first clamping portion (2412) is arranged; The first clamping portion (2412) is in clamping connection with the first clamping groove (2212).

3. The endoscopic sheath according to claim 2, wherein, The locking member (25) is sleeved outside the locking section (221), and the locking member (25) includes an end face and a side wall surrounding the end face; On the end face of the locking member (25), a plurality of notches (253) are arranged, and on the inner side wall of the locking member (25), a plurality of second clamping portions (251) are arranged along the circumferential direction, and the plurality of second clamping portions (251) are in clamping connection with the plurality of grooves (2211).

4. The endoscopic sheath according to claim 3, characterized in that, On the endoscope (10), a connection assembly for cooperating with the mirror sheath (20) is arranged. The connection assembly includes a plurality of symmetrically arranged ears (11) protruding radially outwards and a second clamping groove (12) arranged along the axial direction. The shape of the ears (11) corresponds to the shape of the notches (253); The locking member (25) is used for clamping connection with the ears (11), and the first protrusion (2411) is used for clamping connection with the second clamping groove (12).

5. The endoscopic sheath according to claim 4, characterized in that, The locking member (25) has a gradually thickened end face (252); The endoscope (10) is in clamping connection with the locking member (25) having the gradually thickened end face (252) through the ears (11).

6. The endoscopic sheath according to claim 5, characterized in that, The locking member (25) is integrally in the shape of a flat cylinder, and an uneven contact layer is arranged on the side wall of the locking member (25).

7. The endoscopic sheath according to claim 2, wherein, The main body structure (22) further includes a water injection section (222) and a limiting section (223). The locking section (221), the water injection section (222) and the limiting section (223) are connected in sequence. The water injection assembly (23) is sleeved outside the water injection section (222) and is in communication with the water injection section (222).

8. The endoscope sheath according to claim 7, characterized in that, The mirror sheath (20) further includes a limiting member (26), and the limiting member (26) is in threaded connection with the limiting section (223) and is used for limiting the water injection assembly (23); The sheath tube (21) is fixedly connected with the limiting section (223).

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