CN210521091U

CN210521091U - Sealing cap

Info

Publication number: CN210521091U
Application number: CN201920807989.5U
Authority: CN
Inventors: 王彩萍; 刘雅慧; 韩晓彤; 赵建琴; 刘海霞
Original assignee: NANJING BENQ MEDICAL CENTER CO Ltd
Current assignee: NANJING BENQ MEDICAL CENTER CO Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-05-15
Anticipated expiration: 2029-05-30

Abstract

The utility model provides a sealing cap, which comprises a first columnar part, a second columnar part, a first hollow part and a first hollow inner diameter, wherein the first columnar part is provided with a first end, a second end, the first hollow part and a second hollow inner diameter; the second columnar part is provided with a third end, a fourth end, a second hollow part and a second hollow inner diameter, the third end of the second columnar part is connected with the second end of the first columnar part, and the first hollow inner diameter is larger than the second hollow inner diameter; the first end of the first columnar part provides external equipment operation, the fourth end of the second columnar part is connected with the surgical tube scope, and the first hollow part is communicated with the second hollow part so that the external equipment can enter the first hollow part, the second hollow part and the surgical tube scope from the first end of the first columnar part in sequence. Therefore, the sealing performance during operation is improved.

Description

Sealing cap

Technical Field

The utility model relates to a sealing device field for the medical treatment especially relates to a sealing device for puncture operation usefulness.

Background

With the popularization and development of minimally invasive surgery in the cavity, minimally invasive surgery has gradually become a main means for treating ureteral calculus. Holmium laser lithotripsy through a ureteroscope is one of more reliable ways for treating ureteral calculus. In order to keep a clear operation visual field in the operation, physiological saline is required as a medium to keep the bladder and the ureter in a full state, and a sealing cap is a common water leakage prevention device in the urology surgery. However, due to the operation requirement, some surgical instruments such as lithotomy forceps, optical fiber, etc. need to go in and out of the lens repeatedly, so that the sealing cap is worn, and water leakage is caused due to untight sealing. Especially, when the instrument enters the lens for operation, the liquid in the bladder flows back along the instrument, which affects the operation of the operator on one hand, and on the other hand, the liquid flowing back is sprayed to the operating clothes during the operation, causing pollution. Researchers have proposed that the connector of the air charging end of the sterile air bag catheter replaces a sealing cap, which can solve the water leakage phenomenon, but is not easy to fix, and the apparatus has a certain resistance to the lens entering and exiting, so that the connector is not popularized.

Therefore, there is a need for a new surgical sealing device that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealing cap, it can prevent that liquid from flowing out when performing the operation.

To achieve the above objects, the present invention provides a sealing cap, comprising a first cylindrical portion having a first end, a second end, a first hollow portion and a first hollow inner diameter; the second columnar part is provided with a third end, a fourth end, a second hollow part and a second hollow inner diameter, the third end of the second columnar part is connected with the second end of the first columnar part, and the first hollow inner diameter is larger than the second hollow inner diameter; the first end of the first columnar part provides external equipment operation, the fourth end of the second columnar part is connected with the surgical tube scope, and the first hollow part is communicated with the second hollow part so that the external equipment can enter the first hollow part, the second hollow part and the surgical tube scope from the first end of the first columnar part in sequence.

Preferably, the first hollow portion is communicated with the second hollow portion so that the first columnar portion penetrates from the first end to the fourth end of the second columnar portion.

Preferably, the sealing cap further has a planar sealing member, a funnel-shaped sealing member and a first opening, the planar sealing member is disposed at the first end to close the first opening, and the funnel-shaped sealing member is disposed between the first end and the second end to block the first hollow portion.

Preferably, the funnel-shaped sealing member is fixed to an inner wall of the first hollow portion and protrudes toward the fourth end along an axial direction of the first cylindrical portion.

Preferably, the planar sealing member has a first central hole, the funnel-shaped sealing member has a second central hole, and the external device can sequentially pass through the first central hole and the second central hole from the first end to the fourth end.

Preferably, the first center hole and the second center hole are located on an axis of the first cylindrical portion, and the external device can sequentially pass through the first center hole and the second center hole along the axis of the first cylindrical portion.

Preferably, the axis of the first cylindrical portion is coaxial with the axis of the second cylindrical portion.

Preferably, the fourth end has a second opening for connecting with the operation hole of the surgical tube scope.

Preferably, the material of the sealing cap is transparent rubber material.

Preferably, the first hollow inner diameter is 7.5 mm-8.5 mm, and the second hollow inner diameter is 3.5 mm-4.5 mm.

Compared with the prior art, the utility model provides a sealed cap adopts the second column portion that has the second cavity internal diameter of neighbouring sealed liquid end and keeps away from the first cavity internal diameter that first column portion of liquid has, through setting the second cavity internal diameter to the mode less than first cavity internal diameter, plays effective buffering, promotes sealed effect.

Drawings

Fig. 1 is a schematic structural view of a sealing cap according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a sealing cap according to a first embodiment of the present invention.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Certain terms are used throughout the description and following claims to refer to particular components. As one of ordinary skill in the art will appreciate, manufacturers may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. In the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 2, which illustrate a schematic structural diagram of a projection apparatus according to a first embodiment of the present invention, a sealing cap 100 includes a first column portion 1 and a second column portion 2, the first column portion 1 has a first end 11, a second end 12, a first hollow portion X1 and a first hollow inner diameter L1; and a second cylindrical part 2 having a third end 21, a fourth end 22, a second hollow X2 and a second hollow inner diameter L2, the third end 21 of the second cylindrical part 2 being connected to the second end 12 of the first cylindrical part 1, the first hollow inner diameter L1 being greater than the second hollow inner diameter L2; the first end 11 of the first column part 1 provides external equipment operation, the fourth end 22 of the second column part 2 is connected with a surgical tube scope, the first hollow part X1 is communicated with the second hollow part X2 so that external equipment can enter the first hollow part X1, the second hollow part X2 and the surgical tube scope from the first end 11 of the first column part 1 in sequence, and preferably, the first column part 1 and the second column part 2 are cylinders which penetrate along the axial direction Z.

Referring to fig. 1 and 2, the first cylindrical portion 1 and the second cylindrical portion 2 are connected such that the first hollow portion X1 and the second hollow portion X2 communicate with each other, and the first hollow portion X1 communicates with the second hollow portion X2 such that the first cylindrical portion 1 penetrates from the first end 11 to the fourth end 22 of the second cylindrical portion 2. In practical implementation, the sealing cap 100 further has a planar sealing member 14, a funnel-shaped sealing member 15 and a first opening 13, the planar sealing member 14 is disposed at the first end 11 to close the first opening 13, in other words, the first end 11 of the first hollow portion X1 is covered by the planar sealing member 14 to prevent the liquid from leaking out of the first opening 13, the funnel-shaped sealing member 14 is disposed between the first end 11 and the second end 12 to block the first hollow portion X1 to prevent the liquid from entering the space of the first hollow portion X1 near the first end 11 from the second hollow portion X2. The funnel-shaped seal 15 is fixed to the inner wall of the first hollow portion X1 and projects toward the fourth end 22 in the axial direction of the first columnar portion 1. The planar seal 11 has a first central hole 141, the funnel-shaped seal 15 has a second central hole 151, when a surgical operation is required, an external device can sequentially pass through the first central hole 141 and the second central hole 151 from the first end 11 to the fourth end 22, at this time, the planar seal 11 is tightly attached to the external device (e.g. a puncture device) at the first central hole 141, the funnel-shaped seal 15 is tightly attached to the external device at the second central hole 151 to prevent liquid from seeping out from the fourth end 22 to the first end 11 at the second central hole 151, and further prevent liquid from seeping out from the first end 11 from the second end 12 to the external space at the first central hole 151; that is, the liquid in the patient body during operation is located at the fourth end 23, and can be isolated from the external space by the funnel-shaped sealing member 15 and the planar sealing member 14 in sequence, and the sealing performance of the surgical equipment is greatly improved and the convenience and reliability of operation can be improved when the surgical equipment is inserted into the body by the sealing cap 100 to perform the operation.

In an embodiment, the first center hole 141 and the second center hole 151 are located on the axis Z of the first cylindrical portion 1, and the external device can sequentially pass through the first center hole 141 and the second center hole 151 along the axis Z of the first cylindrical portion 1. The axis Z of the first cylindrical portion 1 is coaxial with the axis of the second cylindrical portion 2. The fourth end 22 has a second opening 23, the second opening 23 being adapted to be connected to an operation port of a surgical scope. The material of the sealing cap 100 of the present invention is transparent rubber. The first hollow inner diameter L1 is 7.5 mm-8.5 mm, the second hollow inner diameter L2 is 3.5 mm-4.5 mm, preferably, the first hollow inner diameter L1 is 8mm, and the second hollow inner diameter L2 is 4 mm; the second opening 23 is in the shape of a notch, the outer diameter of the notch is 8mm, and the inner diameter of the notch is 4 mm; the funnel-shaped sealing member 15 is a funnel-shaped one-way flap, and is arranged on the inner wall of the first columnar part 1, and the distance from the first end 11 is preferably 5 mm; the thickness of the tube wall of the first columnar part 1 and the second columnar part is 2mm, the length of the sealing cap 100 along the Z-axis direction is about 2cm, the parameters of the length distance can be properly adjusted according to actual requirements during implementation, and the error can be controlled within the range of 0.5 mm.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. A sealing cap, characterized in that it comprises,

a first cylindrical portion having a first end, a second end, a first hollow portion and a first hollow inner diameter; and

a second cylindrical portion having a third end, a fourth end, a second hollow portion and a second hollow inner diameter, the third end of the second cylindrical portion being connected to the second end of the first cylindrical portion, the first hollow inner diameter being greater than the second hollow inner diameter;

the first end of the first columnar part provides external equipment operation, the fourth end of the second columnar part is connected with the surgical tube scope, and the first hollow part is communicated with the second hollow part so that the external equipment can enter the first hollow part, the second hollow part and the surgical tube scope from the first end of the first columnar part in sequence.

2. The sealing cap of claim 1, wherein the first hollow portion communicates with the second hollow portion such that the first cylindrical portion passes through from the first end to the fourth end of the second cylindrical portion.

3. The sealing cap of claim 1, further comprising a planar sealing member disposed at the first end to close the first opening, a funnel-shaped sealing member disposed between the first end and the second end to block the first hollow portion, and a first opening.

4. The sealing cap of claim 3, wherein the funnel-shaped sealing member is fixed to an inner wall of the first hollow portion and protrudes toward the fourth end in the axial direction of the first cylindrical portion.

5. The sealing cap of claim 3, wherein the planar sealing member has a first central aperture, the funnel-shaped sealing member has a second central aperture, and the external device is sequentially passable through the first central aperture and the second central aperture from the first end to the fourth end.

6. The sealing cap of claim 5, wherein the first and second central apertures are located on an axis of the first cylindrical portion, and the external device is sequentially insertable through the first and second central apertures along the axis of the first cylindrical portion.

7. The sealing cap of claim 1, wherein the axis of the first cylindrical portion is coaxial with the axis of the second cylindrical portion.

8. The sealing cap of claim 1, wherein the fourth end has a second opening for coupling with an access port of the surgical scope.

9. The sealing cap of claim 1, wherein the sealing cap is made of a transparent rubber material.

10. The sealing cap of claim 1, wherein the first hollow inner diameter is 7.5mm to 8.5mm and the second hollow inner diameter is 3.5mm to 4.5 mm.