A sealing cap and a gastrointestinal scope

Abstract

The utility model provides a kind of sealing cap and gastroenterology, the sealing cap includes sealing assembly, and the connecting assembly of being located in sealing cap body near gastroscope pipeline one side, connecting assembly is used to and gastroscope pipeline detachably connect, sealing assembly includes the fitting piece of being surrounded on the flange of gastroscope pipeline, and the sealing element being connected to the side of fitting piece far from gastroscope pipeline, the side of sealing element near fitting piece is equipped with first sealing structure, through hole for medical instrument to enter is equipped in sealing element, and part recess is formed embedding slot at the inner wall of through hole, sealing element further includes the sealing plate of being rotatably arranged in embedding slot, the rotating shaft being fixedly connected in non-axle position of sealing plate, and the second sealing structure being arranged at the edge of sealing plate, rotating shaft is rotatably connected with the groove wall of embedding slot, sealing plate is closely combined with the upper and lower groove wall of embedding slot, rotating shaft is rotated, to make sealing plate block or away from through hole. The utility model can greatly improve the sealing of sealing cap, and the portability of connection with gastroscope pipeline.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a sealing cap and a gastrointestinal endoscope. Background Technology

[0002] When performing a gastric biopsy on a patient, the sealing cap on the endoscope needs to be opened. The sealing cap has a through hole that connects to the endoscope tube. Then, the biopsy forceps are inserted through the through hole into the endoscope tube and then inserted into the patient's stomach to collect tissue for testing.

[0003] In existing technologies, the original sealing caps have poor sealing performance. In addition, the frequent removal for disinfection and cleaning further reduces the sealing performance of the sealing cap itself and the sealing performance at the connection between the sealing cap and the endoscope body. This forces medical staff to use plastic film to block the connection between the sealing cap and the endoscope body to prevent leakage of liquid and air from the endoscope body, which would contaminate the endoscope shell and the environment. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a sealing cap that solves the problem that the original sealing caps provided with the gastroscope have poor sealing performance. In addition, the frequent removal, disinfection and cleaning further reduces the sealing performance of the sealing cap itself and the sealing performance at the connection between the sealing cap and the gastroscope body. As a result, medical staff have to use plastic film to block the connection between the sealing cap and the gastroscope body to prevent leakage of liquid and air from the gastroscope body, which would contaminate the gastroscope shell and the environment.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A sealing cap is provided for covering a gastroscopy tube. The sealing cap includes a sealing assembly and a connecting assembly located on the side of the sealing cap body near the gastroscopy tube. The connecting assembly is used for detachable connection with the gastroscopy tube. The sealing assembly includes an insert surrounding a flange of the gastroscopy tube and a sealing member connected to the insert on the side away from the gastroscopy tube. The sealing member has a first sealing structure on the side near the insert. The sealing member has a through hole for medical instruments to enter. A recessed groove is formed in the inner wall of the through hole. The sealing member also includes a sealing plate rotatably disposed in the groove, a rotating shaft fixed to a non-axial part of the sealing plate, and a second sealing structure located at the edge of the sealing plate. The rotating shaft is rotatably connected to the groove wall of the groove. The sealing plate is tightly fitted to the upper and lower groove walls of the groove. Rotating the rotating shaft causes the sealing plate to block or move away from the through hole.

[0007] According to one aspect of the above technical solution, the rotating shaft protrudes through the seal and extends to the outside, a knob is provided at the end of the rotating shaft protruding to the outside, and the rotating shaft is rotatably connected to the lower wall of the embedded groove through a bearing.

[0008] According to one aspect of the above technical solution, the sealing member is characterized in that a first annular groove is provided on the side near the fitting member, a first sealing ring is provided in the first annular groove, and the lower edge of the sealing member and the first sealing ring are both tightly fitted to the upper surface of the flange of the gastroscopy tube.

[0009] According to one aspect of the above technical solution, the connecting assembly includes a plurality of fixing pieces spaced apart around the lower end of the fitting, an external thread provided on the outer edge of the plurality of fixing pieces, and a nut sleeved on the outer surface of the plurality of fixing pieces, wherein the nut is provided with an internal thread that mates with the external thread.

[0010] According to one aspect of the above technical solution, the fixed piece is provided with a limiting stop at one end away from the fitting member, and the limiting stop is used to limit the extreme distance of the nut.

[0011] According to one aspect of the above technical solution, the second sealing structure includes a second annular groove and a third annular groove respectively disposed on the upper and lower edges of the sealing plate, and a second sealing ring and a third sealing ring respectively disposed on the second annular groove and the third annular groove.

[0012] According to one aspect of the above technical solution, the upper and lower walls of the embedding groove are respectively provided with a fourth annular groove and a fifth annular groove, and the fourth annular groove and the fifth annular groove are respectively provided with a fourth sealing ring and a fifth sealing ring.

[0013] According to one aspect of the above technical solution, the projection of the fourth sealing ring along the axial direction of the through hole is located within the diameter range of the second sealing ring, and the projection of the fifth sealing ring along the axial direction of the through hole is located within the diameter range of the third sealing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By replacing the original sealing cap, the improved sealing cap is achieved by placing a fitting over the flange of the endoscope tubing. The sealing cap is then fixedly connected to the endoscope tubing via a connecting assembly. Once fixed, the sealing cap's sealing element fits snugly against the flange of the endoscope tubing. A first sealing structure is provided on the side of the sealing element near the fitting, preventing moisture from leaking out from the interface between the flange and the sealing element / fitting element, thus achieving the first layer of sealing protection. A through-hole is then provided in the sealing element for medical instruments (such as biopsy forceps) to pass through. An embedding groove is provided in the through-hole, and a [missing information - likely a device or component] is placed within the embedding groove. The system includes a sealing plate and a rotating shaft, with a second sealing structure on the sealing plate. When biopsy forceps need to be inserted into the endoscope tube, the sealing plate is rotated away from the through hole by rotating the rotating shaft. When the biopsy forceps do not need to be inserted into the endoscope tube, the sealing plate is rotated to block the through hole by rotating the rotating shaft. Since the sealing plate fits tightly against the upper and lower walls of the embedded groove, and the size of the sealing plate can be set to be larger than the through hole, it is difficult for liquid to overflow through the sealing plate. Furthermore, since a second sealing structure is provided at the edge of the sealing plate, any water vapor that is not completely blocked will be blocked by the second sealing structure, thus providing a further sealing effect.

[0016] This invention can greatly improve the sealing performance of the sealing cap and the portability of connecting it to the endoscope tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the sealing cap and the endoscope tube in the first embodiment of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the bottom structure of the central sealing cap;

[0019] Figure 3 for Figure 1 Exploded view of the central sealing component from a first-person perspective;

[0020] Figure 4 for Figure 1 Exploded view of the central sealing component from a second perspective;

[0021] Explanation of key component symbols:

[0022]

[0023]

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figures 1 to 4 The image shows a sealing cap according to a first embodiment of the present invention. The sealing cap is used to cover a gastroscopy tube 20. The sealing cap includes a sealing assembly and a connecting assembly disposed on the side of the sealing cap body near the gastroscopy tube 20. The connecting assembly is used for detachable connection with the gastroscopy tube 20. The sealing assembly includes an insert 17 surrounding a flange 21 of the gastroscopy tube 20 and a sealing member 13 connected to the insert 17 on the side away from the gastroscopy tube 20. The sealing member 13 has a first sealing structure on the side near the insert 17. The sealing member 13 has a through hole 14 for medical instruments to enter. The inner wall of the through hole 14 is partially recessed to form an embedding groove 30. The sealing member 13 also includes a sealing plate 16 rotatably disposed in the embedding groove 30, a rotating shaft 15 fixed to the non-axial part of the sealing plate 16, and a second sealing structure disposed at the edge of the sealing plate 16. The rotating shaft 15 is rotatably connected to the groove wall of the embedding groove 30. The sealing plate 16 is tightly fitted with the upper and lower groove walls of the embedding groove 30. Rotating the rotating shaft 15 can cause the sealing plate 16 to block or move away from the through hole 14.

[0029] Understandably, this utility model replaces the original sealing cap with an improved sealing cap. The improved sealing cap is achieved by placing the fitting 17 over the flange 21 of the endoscope tube 20, and then fixing the sealing cap to the endoscope tube 20 via a connecting assembly. Once fixed, the sealing element 13 of the sealing cap will fit snugly against the flange 21 of the endoscope tube 20. By providing a first sealing structure on the side of the sealing element 13 near the fitting 17, moisture can be prevented from flowing out from the interface between the flange 21, the sealing element 13, and the fitting 17, thus achieving the first layer of sealing protection. Then, a through hole 14 is provided through the sealing element 13 for medical instruments (such as biopsy forceps) to pass through. An embedding groove 30 is provided in the through hole 14. A sealing plate 16 and a rotating shaft 15 are provided in the 30, and a second sealing structure is provided on the sealing plate 16. When it is necessary to insert the biopsy forceps into the gastroscope tube 20, the sealing plate 16 is rotated away from the through hole 14 by rotating the rotating shaft 15. When it is not necessary to insert the biopsy forceps into the gastroscope tube 20, the sealing plate 16 is rotated to block the through hole 14 by rotating the rotating shaft 15. Since the sealing plate 16 is tightly fitted with the upper and lower walls of the embedded groove 30, and the size of the sealing plate 16 can be set to be larger than the through hole 14, it is difficult for liquid to overflow through the sealing plate 16. Furthermore, since a second sealing structure is provided at the edge of the sealing plate 16, water vapor that is not completely blocked will be blocked by the second sealing structure, thus achieving a further sealing effect.

[0030] This invention can greatly improve the sealing performance of the sealing cap and the portability of connecting it to the endoscope tube 20.

[0031] Specifically, in this embodiment, the rotating shaft 15 protrudes through the seal 13 and extends to the outside. The end of the rotating shaft 15 that protrudes to the outside is provided with a knob 151. The rotating shaft 15 is rotatably connected to the lower groove wall of the embedded groove 30 through a bearing 152.

[0032] Understandably, the sealing plate 16 is circular, with a protrusion 161 on its edge. The rotating shaft 15 is mounted on the protrusion 161, and the sealing part 162 blocks the through hole 14. Rotating the rotating shaft 15 causes the sealing plate 16 to rotate non-axially, thus moving the sealing plate 16 away from or blocking the through hole 14. The shape of the embedding groove 30 can be configured such that when one side of the sealing plate 16 touches the groove wall, the axis of the sealing plate 16 coincides with the axis of the through hole 14 for better sealing, and when the other side of the sealing plate 16 touches the groove wall, the sealing plate 16 just moves away from the through hole 14, so that the through hole 14 is fully exposed. (It should be noted that...) Figure 3 and 4This is just a simplified structural diagram, intended only to illustrate the positions of the fourth sealing ring 32 and the fifth sealing ring 31. The shape of the embedding groove 30 is not adjusted according to the rotation trajectory of the sealing plate 16. This needs to be adjusted according to the actual situation, but it is easy for those skilled in the art to implement.

[0033] Furthermore, the sealing member 13 is provided with a first annular groove (not shown in the figure) on the side near the fitting member 17, and a first sealing ring 171 is provided in the first annular groove. The lower edge of the sealing member 13 and the first sealing ring 171 are both tightly fitted to the upper surface of the flange 21 of the gastroscopy tube 20.

[0034] Understandably, during installation, the fitting 17 is inserted into the outer edge of the flange 21, and the fitting 17 is in close contact with the outer edge of the flange 21, so that the lower edge of the first sealing ring 171 and the seal 13 is in close contact with the upper surface of the flange 21, making it difficult for liquid to overflow from the seal 13.

[0035] Furthermore, the connecting assembly includes a plurality of fixing pieces 10 spaced apart around the lower end of the fitting member 17, external threads provided on the outer edges of the plurality of fixing pieces 10, and nuts 12 sleeved on the outer surfaces of the plurality of fixing pieces 10, wherein the nuts 12 are provided with internal threads that mate with the external threads; a limiting stop strip 11 protrudes from one end of the fixing piece 10 away from the fitting member 17, and the limiting stop strip 11 is used to limit the extreme distance of the nuts 12.

[0036] Understandably, the size of the ring formed by the multiple fixing plates 10 is slightly smaller than the size of the endoscope tube 20. When the fixing plates 10 surround the endoscope tube 20, by rotating the nut 12, the nut 12 moves downward, allowing the multiple fixing plates 10 to tightly clamp the endoscope tube 20 to complete the fixing of the sealing cap. The function of the limiting strip 11 is to prevent the nut 12 from detaching from the fixing plates 10.

[0037] Furthermore, the second sealing structure includes a second annular groove (not shown in the figure) and a third annular groove (not shown in the figure) respectively provided on the upper and lower edges of the sealing plate 16, and a second sealing ring 163 and a third sealing ring 164 respectively provided on the second annular groove and the third annular groove.

[0038] It is understandable that even if the sealing plate 16 and the upper and lower walls of the embedded groove 30 are tightly fitted, some moisture will still escape. Therefore, a second sealing ring 163 and a third sealing ring 164 are respectively provided on the upper and lower surfaces of the sealing plate 16. Since the second sealing ring 163 and the third sealing ring 164 are elastic, they can be tightly fitted into the upper and lower walls of the embedded groove 30 to minimize the escape of moisture.

[0039] Furthermore, the upper and lower walls of the embedded groove 30 are respectively provided with a fourth annular groove (not shown in the figure) and a fifth annular groove (not shown in the figure), and the fourth annular groove and the fifth annular groove are respectively provided with a fourth sealing ring 32 and a fifth sealing ring 31; the projection of the fourth sealing ring 32 along the axial direction of the through hole 14 is located within the diameter range of the second sealing ring 163, and the projection of the fifth sealing ring 31 along the axial direction of the through hole 14 is located within the diameter range of the third sealing ring 164.

[0040] Understandably, by setting the fourth sealing ring 32 and the fifth sealing ring 31 on the upper and lower walls of the embedded groove 30 respectively, they can serve as a first layer of protection for the second sealing ring 163 and the third sealing ring 164. Water vapor is first lost at the fourth sealing ring 32 and the fifth sealing ring 31, and then the water vapor is completely blocked by the second sealing ring 163 and the third sealing ring 164.

[0041] In summary, the sealing cap in the above embodiments of this utility model can greatly improve the sealing performance of the sealing cap and the portability of connecting it to the endoscope tube.

[0042] The second embodiment of this utility model also provides a gastrointestinal endoscope, which includes the sealing cap of the first embodiment.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sealing cap, said sealing cap being used to cover a gastroscopy tube, characterized in that, The sealing cap includes a sealing assembly and a connecting assembly disposed on the side of the sealing cap body near the endoscope tube. The connecting assembly is used to detachably connect to the endoscope tube. The sealing assembly includes an insert surrounding the flange of the endoscope tube and a sealing member connected to the insert on the side away from the endoscope tube. The sealing member has a first sealing structure on the side near the insert. The sealing member has a through hole for medical instruments to enter. A recessed groove is formed in the inner wall of the through hole. The sealing member also includes a sealing plate rotatably disposed in the groove, a rotating shaft fixed to the non-axial part of the sealing plate, and a second sealing structure disposed at the edge of the sealing plate. The rotating shaft is rotatably connected to the groove wall of the groove. The sealing plate is tightly fitted to the upper and lower groove walls of the groove. Rotating the rotating shaft causes the sealing plate to block or move away from the through hole.

2. The sealing cap according to claim 1, characterized in that, The rotating shaft protrudes through the seal and extends to the outside. A knob is provided at the protruding end of the rotating shaft. The rotating shaft is rotatably connected to the lower wall of the embedded groove through a bearing.

3. The sealing cap according to claim 1, characterized in that, The sealing element has a first annular groove on the side near the fitting element, and a first sealing ring is provided in the first annular groove. The lower edge of the sealing element and the first sealing ring are both tightly fitted to the upper surface of the flange of the gastroscopy tube.

4. The sealing cap according to claim 1, characterized in that, The connecting assembly includes a plurality of fixing plates spaced apart around the lower end of the fitting, an external thread on the outer edge of the plurality of fixing plates, and a nut fitted on the outer surface of the plurality of fixing plates, wherein the nut is provided with an internal thread that mates with the external thread.

5. The sealing cap according to claim 4, characterized in that, The fixing plate has a limiting strip protruding from one end away from the fitting member, and the limiting strip is used to limit the extreme distance of the nut.

6. The sealing cap according to claim 1, characterized in that, The second sealing structure includes a second annular groove and a third annular groove respectively disposed on the upper and lower edges of the sealing plate, and a second sealing ring and a third sealing ring respectively disposed on the second annular groove and the third annular groove.

7. The sealing cap according to claim 6, characterized in that, The upper and lower walls of the embedded groove are respectively provided with a fourth annular groove and a fifth annular groove, and the fourth annular groove and the fifth annular groove are respectively provided with a fourth sealing ring and a fifth sealing ring.

8. The sealing cap according to claim 7, characterized in that, The projection of the fourth sealing ring along the axial direction of the through hole is within the diameter range of the second sealing ring, and the projection of the fifth sealing ring along the axial direction of the through hole is within the diameter range of the third sealing ring.

9. A gastrointestinal endoscope, characterized in that, Includes the sealing cap as described in any one of claims 1 to 8.

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