Medical scope sheath

Abstract

The utility model provides a kind of medical mirror sheath, including outer sheath and inner sheath;Inner sheath is inserted into outer sheath and formed mirror sheath;Wherein the outer sheath includes outer tube sheath, outer sheath main body, joint assembly, water outlet valve, water inlet valve and sealing ring assembly;The outer tube sheath, outer sheath main body and joint assembly are sequentially head-to-tail connection;Water outlet valve is installed to one side of outer sheath main body and is communicated with inside, and water inlet valve is installed to the other side of outer sheath main body and is communicated with inside;Sealing ring assembly is installed to the inside of outer sheath main body.The utility model enhances the stability, sealing performance in the process of using and cleaning mirror sheath and improves the efficiency of perfusion circulating water, is more suitable for mirror sheath system equipped with perfusion circulating water function.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment, and in particular relates to a medical endoscope sheath. Background Technology

[0002] In surgical procedures, the endoscope sheath is an external insertion channel used to guide endoscopes or endoscopic instruments. Its performance directly affects the success of the surgery and patient safety. Traditional endoscope sheath systems, such as resectoscope sheaths and laser resectoscope sheaths, typically consist of an outer sheath and an inner sheath. The outer and inner sheaths work together, with a circulatory water system created through the interlayer between them and within the inner sheath. This water is used to drain heat generated during the procedure and remove surgical residue. Furthermore, the outer sheath can be used with various medical devices to achieve diverse functions.

[0003] However, existing endoscope sheath systems have some problems, particularly the sealing ring structure between the outer and inner sheaths. During installation and use, ordinary O-rings are prone to detachment, leading to decreased sealing performance, increased risk of liquid leakage and cross-infection, and affecting the normal operation and safety of the equipment. Furthermore, modern surgeries such as plasma vaporization electroresection and laser electroresection generate significant amounts of heat and surgical residue during the procedure, requiring a robust water inlet and outlet system to remove these substances. Traditional water inlet designs often limit the effective flow area of ​​water, affecting the flow rate of circulating water and consequently impacting surgical efficiency and the effective removal of heat and residue. Utility Model Content

[0004] In view of this, the present invention aims to provide a medical endoscope sheath that enhances the stability and sealing performance of the endoscope sheath during use and cleaning, as well as improves the efficiency of irrigation circulating water, making it more suitable for endoscope sheath systems equipped with irrigation circulating water function.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A medical endoscope sheath includes an outer sheath and an inner sheath; the inner sheath is inserted into the outer sheath to form the endoscope sheath;

[0007] The outer sheath includes an outer tubular sheath, an outer sheath body, a connector assembly, an outlet valve, an inlet valve, and a sealing ring assembly;

[0008] The outer sheath, the outer sheath body, and the connector assembly are connected end to end in sequence; the outlet valve is installed on one side of the outer sheath body and communicates with the interior, and the inlet valve is installed on the other side of the outer sheath body and communicates with the interior.

[0009] The sealing ring assembly is installed inside the outer sheath body.

[0010] Furthermore, the sealing ring assembly includes a sealing ring body and a sealing support sleeve; the sealing support sleeve is annular, and annular grooves are formed at both ends of the sealing support sleeve; the sealing ring body is provided with a slot corresponding to the annular groove; the slot engages with the annular groove to realize the engagement between the sealing ring body and the sealing support sleeve.

[0011] The circumferential surface of the sealing support sleeve is provided with a through hole as a water flow channel;

[0012] The inlet valve is installed through the outer sheath body into the through hole.

[0013] Furthermore, the inner wall of the sealing support sleeve is provided with an annular groove to ensure the passage of water.

[0014] Furthermore, the circumferential surface of the sealing ring body is flush with the circumferential surface of the sealing support sleeve.

[0015] Furthermore, the ratio of the thickness of the sealing ring body to the thickness of the sealing support sleeve is in the range of 1:3 to 1:4.

[0016] Furthermore, the interior of the outer sheath body is formed with an inner cavity having stepped holes for installing a sealing ring assembly.

[0017] Furthermore, the inner sheath includes an inner tubular sheath and an inner sheath body; the inner tubular sheath and the inner sheath body are connected end to end; the circumferential surface of the inner sheath body is provided with four evenly distributed rectangular rounded square holes; the square holes correspond to the positions of the through holes.

[0018] Compared with the prior art, the medical endoscope sheath of this utility model has the following advantages:

[0019] (1) This utility model provides a medical endoscope sheath that enhances the stability and sealing performance of the endoscope sheath during use and cleaning, as well as improves the efficiency of irrigation and circulating water, making it more suitable for endoscope sheath systems equipped with irrigation and circulating water functions.

[0020] (2) The present invention provides a medical endoscope sheath that increases the effective flow area of ​​water flow and improves the flow rate of circulating water by increasing the number of water inlets, changing the shape or distribution of water inlets, etc. This design helps to more effectively remove heat and surgical residues generated during surgery, thereby improving surgical efficiency and safety. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1This is a schematic diagram of a medical endoscope sheath according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the outer sheath explosion according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the sealing ring assembly described in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the sealing support sleeve described in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the sealing ring body according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the inner sheath as described in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Outer sheath; 11. Outer tube sheath; 12. Outer sheath body; 13. Connector assembly; 14. Outlet valve; 15. Inlet valve; 16. Sealing ring assembly; 161. Sealing ring body; 162. Sealing support sleeve; 163. Through hole; 164. Annular groove; 165. Slot; 2. Inner sheath; 21. Inner tube sheath; 22. Inner sheath body; 23. Square hole. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A type of medical mirror sheath, such as Figures 1-6 As shown, it includes an outer sheath 1 and an inner sheath 2; the inner sheath 2 is inserted into the outer sheath 1 to form a mirror sheath;

[0035] The outer sheath 1 includes an outer tube sheath 11, an outer sheath 1 body, a connector assembly 13, an outlet valve 14, an inlet valve 15, and a sealing ring assembly 16;

[0036] The outer sheath 11, the outer sheath 1 body, and the connector assembly 13 are connected end to end in sequence; the water outlet valve 14 is installed on one side of the outer sheath 1 body and communicates with the interior, the water inlet valve 15 is installed on the other side of the outer sheath 1 body and communicates with the interior; the sealing ring assembly 16 is installed inside the outer sheath 1 body.

[0037] Preferably, the sealing ring assembly 16 includes a sealing ring body 161 and a sealing support sleeve 162; the sealing support sleeve 162 is annular, and annular grooves 164 are formed at both ends of the sealing support sleeve 162; the sealing ring body 161 is provided with a slot 165 corresponding to the annular groove 164; the slot 165 engages with the annular groove 164 to realize the engagement between the sealing ring body 161 and the sealing support sleeve 162;

[0038] The circumferential surface of the sealing support sleeve 162 is provided with a through hole 163 as a water flow channel; the water inlet valve 15 is installed in the through hole 163 through the outer sheath 1 body.

[0039] Preferably, the inner wall of the sealing support sleeve 162 is provided with an annular groove to ensure the passage of water.

[0040] Preferably, the circumferential surface of the sealing ring body 161 is flush with the circumferential surface of the sealing support sleeve 162. This improves the fit and sealing performance.

[0041] Preferably, the ratio of the thickness of the sealing ring body 161 to the thickness of the sealing support sleeve 162 is in the range of 1:3-1:4, which fits the overall design, optimizes the sealing performance, and improves the sealing quality.

[0042] Preferably, the sealing ring body 161 is made of an elastic polymer material, which has excellent wear resistance and corrosion resistance.

[0043] Preferably, the inner cavity of the outer sheath 1 body is formed with stepped holes for installing the sealing ring assembly 16, which facilitates the installation and positioning of the sealing ring assembly 16.

[0044] Preferably, the inner sheath 2 includes an inner tubular sheath 21 and an inner sheath 2 body; the inner tubular sheath 21 and the inner sheath 2 body are connected end to end; the circumferential surface of the inner sheath 2 body is provided with four evenly distributed rectangular rounded square holes 23; the square holes 23 correspond to the positions of the through holes 163; their shape maximizes the enlargement of the hole shape of the water inlet body, so that when water enters through the valve body, the effective passage area of ​​water flow is increased and the flow rate of circulating water is improved by increasing the number of water inlet holes, changing the shape or distribution of water inlet holes, etc. This design helps to more effectively remove the heat and surgical residue generated during the operation, improving the efficiency and safety of the operation.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medical endoscope sheath, characterized in that: It includes an outer sheath and an inner sheath; the inner sheath is inserted into the outer sheath to form a mirror sheath; The outer sheath includes an outer tubular sheath, an outer sheath body, a connector assembly, an outlet valve, an inlet valve, and a sealing ring assembly; The outer sheath, the outer sheath body, and the connector assembly are connected end to end in sequence; the outlet valve is installed on one side of the outer sheath body and communicates with the interior, and the inlet valve is installed on the other side of the outer sheath body and communicates with the interior. The sealing ring assembly is installed inside the outer sheath body.

2. The medical endoscope sheath according to claim 1, characterized in that: The sealing ring assembly includes a sealing ring body and a sealing support sleeve; the sealing support sleeve is annular, and annular grooves are formed at both ends of the sealing support sleeve; the sealing ring body is provided with a slot corresponding to the annular groove; the slot engages with the annular groove to realize the engagement between the sealing ring body and the sealing support sleeve. The circumferential surface of the sealing support sleeve is provided with a through hole as a water flow channel; The water inlet valve is installed through the outer sheath body into the through hole.

3. A medical endoscope sheath according to claim 2, characterized in that: The inner wall of the sealing support sleeve is provided with an annular groove to ensure the passage of water.

4. A medical endoscope sheath according to claim 2, characterized in that: The circumferential surface of the sealing ring body is flush with the circumferential surface of the sealing support sleeve.

5. A medical endoscope sheath according to claim 2, characterized in that: The ratio of the thickness of the sealing ring body to the thickness of the sealing support sleeve is in the range of 1:3 to 1:

4.

6. A medical endoscope sheath according to claim 2, characterized in that: The outer sheath body has an internal cavity with stepped holes for installing a sealing ring assembly.

7. A medical endoscope sheath according to claim 1, characterized in that: The inner sheath includes an inner tubular sheath and an inner sheath body; The inner sheath and the inner sheath body are connected end to end; the circumferential surface of the inner sheath body is provided with four evenly distributed rectangular rounded square holes; the square holes correspond to the positions of the through holes.

Images