Transparent cap for endoscope

Abstract

The utility model relates to an endoscope transparent cap which comprises a fixed cap, a movable cap and a pushing falling assembly, the fixed cap is used for being connected with the front end of an endoscope, and the movable cap is arranged on the outer side of the fixed cap in a sliding mode so that the movable cap can slide relative to the fixed cap and has an extending position and a retracting position. And the pushing falling-off assembly is used for abutting against the movable cap to move from the retraction position to the extension position. The endoscope transparent cap can retract to the front end of the endoscope after being installed, no shielding effect exists when the endoscope enters, the view is prevented from being affected, and the endoscope entering difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical and sanitary products, in particular to a transparent cap for an endoscope. Background Art

[0002] The transparent cap at the front end of the endoscope is a frequently used accessory in endoscopic diagnosis and treatment. There are many types of transparent caps at the front end of the endoscope available. The most common way to use the transparent cap is to assist endoscopic mucosal resection (EMRC). The transparent cap is also used to assist in hemostasis treatment, foreign body removal, magnified endoscopic examination, improve tangent position, and observe endoscopic imaging observation of lesions in difficult locations.

[0003] In recent years, with the rapid development of digestive endoscopy technology, transparent caps have been widely used as an endoscopic auxiliary tool in the diagnosis and treatment of various endoscopic diseases. When the lesion is in the tangential position or in a narrow lumen, the transparent cap helps to expand the lumen and provide anterior images to facilitate the implementation of treatment. During the process of inserting the endoscope after installing the transparent cap, the field of view will be affected to a certain extent because the transparent cap is at the front end of the endoscope. In addition, the shape and shape of the gastrointestinal tract of each patient are different, which often increases the difficulty of inserting the endoscope. Therefore, the existing transparent caps cannot meet the existing usage needs.

[0004] Therefore, there is an urgent need for an endoscope transparent cap that can be retracted at the front end of the endoscope after installation, has no blocking effect when the endoscope is inserted, avoids affecting the field of vision, and reduces the difficulty of inserting the endoscope to solve the above problems. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides a transparent endoscope cap which can be retracted to the front end of an endoscope after installation, has no shielding effect when the endoscope is inserted, avoids affecting the field of view and reduces the difficulty of inserting the endoscope.

[0006] The specific technical solution is as follows: A transparent cap of an endoscope, comprising a fixed cap, a movable cap and a push-and-drop assembly, wherein the fixed cap is used to be connected to the front end of the endoscope, and the movable cap is slidably arranged on the outside of the fixed cap so that the movable cap slides relative to the fixed cap and has an extended position and a retracted position, and the push-and-drop assembly is used to push the movable cap to move from the retracted position to the extended position.

[0007] Preferably, the push-and-drop assembly includes a push column and a spring sheet, wherein the push column is used to be slidably disposed in the biopsy channel of the endoscope, one end of the spring sheet is connected to the push column, and the other end of the spring sheet can be disposed against the movable cap.

[0008] Specifically, the spring sheet includes a straight segment and an extension portion, one end of the straight segment is connected to the top column, the extension portion is extended outward from the other end of the straight segment, and the movable cap is provided with a top edge corresponding to the extension portion, and the top edge is extended inward from one end of the movable cap.

[0009] Specifically, the straight line segment and the extending portion are perpendicular to each other.

[0010] Preferably, the cross section of the fixing cap is circular, and the fixing cap is a transparent cylindrical structure.

[0011] Preferably, the cross section of the movable cap is circular, and the movable cap is a transparent cylindrical structure.

[0012] Preferably, the outer wall of the fixing cap extends outward to form a limiting protrusion structure so that the limiting protrusion structure divides the outer wall of the fixing cap into a sliding section and a limiting section, and the free end of the limiting section extends outward to form a first limiting edge.

[0013] Specifically, the free end of the sliding section extends outward to form a second limiting edge.

[0014] Specifically, the movable cap has a sliding block slidably arranged on the sliding section and the limiting section.

[0015] Beneficial effects of the utility model:

[0016] Compared with the prior art, the transparent cap of the endoscope of the utility model combines a fixed cap, a movable cap and a push-off assembly together, the fixed cap is used to connect with the front end of the endoscope, the movable cap is slidably arranged on the outside of the fixed cap, so that the movable cap slides relative to the fixed cap and has an extended position and a retracted position, that is, the fixed cap and the movable cap are set to a retractable structure, the push-off assembly is used to push the movable cap from the retracted position to the extended position, and the two positions of the movable cap are mainly for two states in actual operation requirements. After the transparent cap of the endoscope of the utility model is installed, its movable cap slides to the retracted position, and the movable cap can be retracted at the front end of the endoscope, and there is no shielding effect when the endoscope is inserted, avoiding affecting the field of vision and reducing the difficulty of entering the endoscope. When endoscopic treatment is required, the push-off assembly is pushed out with a biopsy forceps, thereby pushing the movable cap to the extended position, which is convenient for subsequent surgical treatment, and the push-off assembly is separated from the fixed cap and the movable cap during the pushing process and falls into the human body, which will not block the subsequent activity of the biopsy forceps, that is, it will not affect the treatment of subsequent surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the transparent cap of the endoscope of the utility model.

[0018] Figure 2It is a schematic diagram of the internal three-dimensional structure of the endoscope transparent cap of the utility model in another state.

[0019] Figure 3 It is a cross-sectional view of the endoscope transparent cap of the utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the endoscope transparent cap of the utility model in another state.

[0021] Figure 5 It is a three-dimensional exploded view of the endoscope transparent cap of the utility model after the push-off structure is hidden. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figures 1 to 5 The utility model provides an endoscope transparent cap 100, which includes a fixed cap 1, a movable cap 2 and a push-off assembly 3. The fixed cap 1 is used to connect with the front end of the endoscope 4, and the movable cap 2 is slidably arranged on the outside of the fixed cap 1, so that the movable cap 2 slides relative to the fixed cap 1 and has an extended position and a retracted position (the retracted position is shown in FIG. Figure 1 , extended position see Figure 2 ), that is, the fixed cap 1 and the movable cap 2 are set to a retractable structure, and the push-off assembly 3 is used to push the movable cap 2 to move from the retracted position to the extended position. The two positions of the movable cap 2 are mainly for two states in actual operation requirements. After the endoscope transparent cap 100 of the utility model is installed, its movable cap 2 slides to the retracted position, and the movable cap 2 can be retracted at the front end of the endoscope 4 (see Figure 1 ), that is, the movable cap 2 is retracted relative to the fixed cap 1 so that there is no shielding effect when inserting the endoscope, thus avoiding affecting the field of vision and reducing the difficulty of inserting the endoscope. When endoscopic treatment 4 is required, the push-off component 3 is pushed out with biopsy forceps, thereby pushing the movable cap 2 to the extended position to facilitate subsequent surgical treatment. During the pushing process, the push-off component 3 is separated from the fixed cap 1 and the movable cap 2 and falls into the human body, which will not block the subsequent movement of the biopsy forceps, i.e., will not affect the subsequent surgical treatment. It is understandable that the fixed cap 1 and the movable cap 2 that fall into the human body will be discharged after the operation, so they will not affect the human body. More specifically, as follows:

[0024] See also Figure 3The push-off assembly 3 includes a top column 31 and a spring sheet 32. The top column 31 is used to be slidably arranged on the biopsy channel 41 of the endoscope 4. One end of the spring sheet 32 ​​is connected to the top column 31, and the other end of the spring sheet 32 ​​can be arranged to push against the movable cap 2. Specifically, the spring sheet 32 ​​includes a straight section 321 and an extension portion 322. One end of the straight section 321 is connected to the top column 31. The extension portion 322 is formed by extending outward from the other end of the straight section 321. The movable cap 2 is provided with a push-off edge 2a corresponding to the extension portion 322. The push-off edge 2a is formed by extending inward from one end of the movable cap 2. When the movable cap 2 needs to be extended relative to the fixed cap 1, the push-off edge 2a cooperates with the extension portion 322, so as to push against the extension of the spring sheet 32, and the extension portion 322 of the spring sheet 32 ​​pushes against the extension of the movable cap 2. Preferably, the straight section 321 and the extension portion 322 are perpendicular to each other, and the perpendicular arrangement enables the extension portion 322 to exactly fit against the abutting edge of the movable cap 2 .

[0025] like Figures 1 to 3 The cross section of the fixed cap 1 is circular, and the fixed cap 1 is a transparent cylindrical structure. The cross section of the movable cap 2 is circular, and the movable cap 2 is a transparent cylindrical structure.

[0026] like Figures 1 to 3 , the outer wall of the fixed cap 1 extends outward to form a limiting protrusion structure 11 so that the limiting protrusion structure 11 divides the outer wall of the fixed cap 1 into a sliding section 12 and a limiting section 13, and the free end of the limiting section 13 extends outward to form a first limiting edge 15. Specifically, the free end of the sliding section 12 extends outward to form a second limiting edge 14, and the movable cap 2 has a slider 21 slidably arranged on the sliding section 12 and the limiting section 13. It can be understood that the slider 21 of the movable cap 2 initially slides on the sliding section 12. When the slider 21 passes over the sliding section 12 and enters the limiting section 13, due to the blocking of the first limiting edge 15 and the limiting protrusion structure 11 on both sides, the movable cap 2 is limited to the extended position.

[0027] The use process of the endoscope transparent cap 100 of the utility model is as follows:

[0028] After the endoscope transparent cap 100 is installed, its movable cap 2 slides to the retracted position, and the movable cap 2 can be retracted at the front end of the endoscope 4. At this time, the slider 21 is located at the initial end of the sliding section 12. When the endoscope is inserted, the movable cap 2 is retracted relative to the fixed cap 1, and the endoscope 4 is not blocked by the movable cap 2, which can avoid affecting the visual field and reduce the difficulty of inserting the endoscope. When it is necessary to perform treatment under the endoscope 4, the top column 31 of the push-off assembly 3 is pushed out using the biopsy forceps, and the top column 31 pushes the spring sheet 32, thereby pushing the movable cap 2 to slide to the extended position relative to the fixed cap 1, which is convenient for subsequent surgical treatment. At this time, when the slider 21 crosses the sliding section 12 and enters the limiting section 13, due to the blocking of the first limiting edge 15 and the limiting protrusion structure 11 on both sides, the movable cap 2 is limited to the extended position, and the push-off assembly 3 is separated from the fixed cap 1 and the movable cap 2 during the pushing process and falls into the human body, which will not block the subsequent activity of the biopsy forceps, that is, it will not affect the treatment of subsequent surgery.

[0029] By combining the fixed cap 1, the movable cap 2 and the push-off assembly 3 together, the fixed cap 1 is used to connect with the front end of the endoscope 4, and the movable cap 2 is slidably arranged on the outside of the fixed cap 1, so that the movable cap 2 slides relative to the fixed cap 1 and has an extended position and a retracted position, that is, the fixed cap 1 and the movable cap 2 are set to a retractable structure, and the push-off assembly 3 is used to push the movable cap 2 from the retracted position to the extended position. The two positions of the movable cap 2 are mainly for two states in actual operation requirements. After the endoscope transparent cap 100 of the utility model is installed, its movable cap 2 slides to the retracted position, and the movable cap 2 can be retracted at the front end of the endoscope 4. There is no shielding effect when the endoscope is inserted, avoiding affecting the field of vision and reducing the difficulty of inserting the endoscope. When it is necessary to perform treatment under the endoscope 4, the push-off assembly 3 is pushed out with a biopsy forceps, thereby pushing the movable cap 2 to the extended position, which is convenient for subsequent surgical treatment, and the push-off assembly 3 is separated from the fixed cap 1 and the movable cap 2 during the pushing process and falls into the human body, which will not block the subsequent activity of the biopsy forceps, that is, it will not affect the treatment of subsequent surgery.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transparent cap for an endoscope, characterized in that: It includes a fixed cap, a movable cap and a push-and-drop assembly, the fixed cap is used to be connected to the front end of the endoscope, the movable cap is slidably arranged on the outside of the fixed cap, so that the movable cap slides relative to the fixed cap and has an extended position and a retracted position, and the push-and-drop assembly is used to push the movable cap to move from the retracted position to the extended position.

2. The endoscope transparent cap according to claim 1, characterized in that: The push-off assembly comprises a push column and a spring sheet. The push column is used to be slidably arranged in the biopsy channel of the endoscope. One end of the spring sheet is connected to the push column, and the other end of the spring sheet can be arranged to push against the movable cap.

3. The transparent cap for endoscope according to claim 2, characterized in that: The spring sheet includes a straight segment and an extension portion, one end of the straight segment is connected to the top column, the extension portion is formed by extending outward from the other end of the straight segment, and the movable cap is provided with a top-butting edge corresponding to the extension portion, and the top-butting edge is formed by extending inward from one end of the movable cap.

4. The endoscope transparent cap according to claim 3, characterized in that: The straight line segment and the extending portion are perpendicular to each other.

5. The endoscope transparent cap according to claim 1, characterized in that: The cross section of the fixing cap is circular, and the fixing cap is a transparent cylindrical structure.

6. The endoscope transparent cap according to claim 1, characterized in that: The cross section of the movable cap is circular, and the movable cap is a transparent cylindrical structure.

7. The endoscope transparent cap according to claim 1, characterized in that: The outer wall of the fixing cap extends outward to form a limiting protrusion structure so that the limiting protrusion structure divides the outer wall of the fixing cap into a sliding section and a limiting section, and the free end of the limiting section extends outward to form a first limiting edge.

8. The endoscope transparent cap according to claim 7, characterized in that: The free end of the sliding section extends outward to form a second limiting edge.

9. The endoscope transparent cap according to claim 7, characterized in that: The movable cap has a sliding block slidably arranged on the sliding section and the limiting section.

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