A protection device and an insertion device

Abstract

The present invention discloses a protection device and an insertion device. The protection device is disposed between an endoscope and a guiding sheath. The protection device includes: a protection tube body having a first channel therein, and the first channel is adapted to the endoscope; a volume variable member sleeved on the protection tube body and communicating with a medium communication hole on the protection tube body; and a medium power member connected to the protection tube body. The volume variable member can be adjusted according to the diameter of the guiding sheath, so that there are multiple sizes of the protection device adapted to the guiding sheath. That is, when the diameter of the guiding sheath is determined, the size of the endoscope adapted to the guiding sheath can be various possibilities. Only need to select the protection device adapted to the endoscope, thereby realizing that the guiding sheath can be adapted to endoscopes of different sizes. And because the economic cost of the protection device is much lower than that of the endoscope, it is not limited by the limitation of the endoscope with a uniquely determined size, reducing the economic cost.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a protection device and an insertion device. Background Art

[0002] An endoscope is a detection instrument integrating optics, imaging, ergonomics, precision machinery, modern electronics, mathematics, software, etc. It has a camera, an image transmission sensor, a light source illumination, a mechanical device, etc., and can enter the body through the natural body cavity. Using an endoscope, lesions that cannot be shown by X-rays can be seen. Therefore, the endoscope plays a very important role in medical diagnosis.

[0003] In the prior art, in order to establish a surgical channel, a guiding sheath is usually used to assist the endoscope and other instruments to enter the human body duct. Among them, when the diameter of the guiding sheath is determined, the size of the endoscope adapted to the guiding sheath is uniquely determined, which results in that the guiding sheath cannot be adapted to endoscopes of different sizes and increases the economic cost. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the guiding sheath in the prior art cannot be adapted to endoscopes of different sizes and increases the economic cost, so as to provide a protection device and an insertion device.

[0005] A protection device is provided between an endoscope and a guiding sheath. The protection device includes:

[0006] A protection tube body with a first channel therein, and the first channel is adapted to the endoscope;

[0007] A volume variable member sleeved on the protection tube body and communicated with a medium communication hole on the protection tube body;

[0008] A medium power member connected to the protection tube body, and the medium power member drives the medium to enter the volume variable member through the first channel and the medium communication hole, so that the volume variable member is adapted to the guiding sheath.

[0009] Further, it further includes a control member. A first end of the control member is connected to the protection tube body, and the medium power member is connected to a second end of the control member.

[0010] Further, it further includes a proximal sealing member and a deformation member. The proximal sealing member is connected to a third end of the control member, and the deformation member is arranged in the control member. The deformation member is deformed by the action of the proximal sealing member to be hermetically adapted to the endoscope.

[0011] Further, a stepped surface is provided inside the third end portion of the control member, and the deformable member abuts against the stepped surface.

[0012] Further, the proximal sealing member includes a proximal sealing outer body and a proximal sealing inner body. The proximal sealing outer body is located outside the control member and connected to the control member. The proximal sealing inner body is located inside the control member, and the end portion of the proximal sealing inner body acts on the deformable member.

[0013] Further, a gasket is further included, and the gasket is disposed between the proximal sealing member and the deformable member.

[0014] Further, the variable volume member is a balloon, the medium power member is a pressure pump, the control member is a three-way control valve, and the deformable member is a sealing ring.

[0015] Further, the first end portion of the control member and the protective tube body are connected by glue, the medium power member and the second end portion of the control member are in interference fit, and the proximal sealing member is threadedly connected to the third end portion of the control member.

[0016] Further, a fixing ring is further included, and the variable volume member is fixed to the protective tube body through the fixing ring.

[0017] An insertion device includes an endoscope, a guiding sheath, and the above-mentioned protection device. The endoscope is located inside the guiding sheath, and the protection device is located between the endoscope and the guiding sheath.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. A protection device provided by the present invention is disposed between an endoscope and a guiding sheath. The protection device includes: a protective tube body having a first channel therein, and the first channel is adapted to the endoscope; a variable volume member sleeved on the protective tube body and communicating with a medium communication hole on the protective tube body; a medium power member connected to the protective tube body, and the medium power member drives a medium through the first channel and the medium communication hole into the variable volume member, so that the variable volume member is adapted to the guiding sheath. For a protection device with such a structure, the variable volume member can be adjusted according to the diameter of the guiding sheath, so that there are multiple sizes of the protection device adapted to the guiding sheath. That is, when the diameter of the guiding sheath is determined, there can be multiple possible sizes of the endoscope adapted to the guiding sheath. Only need to select a protection device adapted to the endoscope, thereby realizing that the guiding sheath can be adapted to endoscopes of different sizes. And since the economic cost of the protection device is much lower than that of the endoscope, it is not limited by the restriction of the endoscope with a uniquely determined size, thus reducing the economic cost.

[0020] 2. A protection device provided by the present invention further includes a proximal sealing member and a deformation member. The proximal sealing member is connected to the third end of the control member, and the deformation member is disposed within the control member. By the action of the proximal sealing member on the deformation member, the deformation member is deformed to be hermetically adapted to the endoscope. For a protection device with such a structure, by providing the proximal sealing member and the deformation member, the sealing performance between the guiding sheath and the endoscope is ensured.

[0021] 3. An insertion device provided by the present invention includes an endoscope, a guiding sheath, and the above protection device. The endoscope is located within the guiding sheath, and the protection device is located between the endoscope and the guiding sheath. For an insertion device with such a structure, since it includes the above protection device, it naturally has the advantages brought about by including the above protection device. Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural view of the protection device provided in Embodiment 1 of the present invention;

[0024] Figure 2 For Figure 1 It is a schematic structural view of the display medium communication hole shown;

[0025] Figure 3 For Figure 1 It is a cross-sectional view of the display endoscope, guiding sheath, and unexpanded volume variable member shown;

[0026] Figure 4 For Figure 1 It is a cross-sectional view of the display endoscope, guiding sheath, and expanded volume variable member shown;

[0027] Figure 5 For Figure 1 It is a cross-sectional view of the display proximal sealing member, gasket, and deformation member shown;

[0028] Description of the Reference Numerals:

[0029] 1 - Protection tube body, 11 - Medium communication hole, 2 - Variable volume member, 3 - Medium power member, 4 - Control member, 51 - Proximal sealing member, 511 - Inner body of proximal sealing member, 512 - Outer body of proximal sealing member, 52 - Deformation member, 53 - Gasket, 6 - Fixed ring, 7 - Endoscope, 8 - Guide sheath. Detailed implementation mode

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Embodiment 1

[0035] This embodiment provides a protection device as shown in Figures 1 to 5 which is arranged between the endoscope 7 and the guide sheath 8. The protection device includes a protection tube body 1, a variable volume member 2, a medium power member 3, a control member 4, a proximal sealing member 51, a deformation member 52, a gasket 53 and a fixed ring 6.

[0036] Among them, a first channel is provided in the protective tube body 1, and the first channel is adapted to the endoscope 7; the volume variable member 2 is sleeved on the protective tube body 1 and communicates with the medium communication hole 11 on the protective tube body 1; the medium power member 3 is connected to the protective tube body 1, and the medium power member 3 drives the medium to pass through the first channel and the medium communication hole 11 into the volume variable member 2, so that the volume variable member 2 is adapted to the guiding sheath 8. Specifically, the medium can be a gaseous medium or others.

[0037] As Figure 1 shown, the volume variable member 2 is fixed to the protective tube body 1 through the fixing ring 6. Specifically, there are two fixing rings 6, and the two fixing rings 6 are arranged at intervals. The volume variable member 2 is partially located inside the fixing ring 6, and the fixing ring 6 is sleeved and fixed on the protective tube body 1.

[0038] As Figure 1 shown, the endoscope 7 passes through the control member 4. The first end of the control member 4 is connected to the protective tube body 1, the medium power member 3 is connected to the second end of the control member 4, the proximal sealing member 51 is connected to the third end of the control member 4, and the deformation member 52 is arranged inside the control member 4. By the action of the proximal sealing member 51 on the deformation member 52, the deformation member 52 deforms, resulting in a change in the inner diameter of the deformation member 52 to be hermetically adapted to the endoscope 7. For details, see Figure 5 , a stepped surface is provided inside the third end of the control member 4, and the deformation member 52 abuts against the stepped surface. By providing the proximal sealing member 51 and the deformation member 52, the sealing performance between the guiding sheath 8 and the endoscope 7 is ensured.

[0039] When no medium needs to be introduced, the third end of the control member 4 is in a non-connected state, while the first end and the second end of the control member 4 are in a connected state, and the volume variable member 2 can be as Figure 3 shown and not expanded; when medium needs to be introduced, the first end, the second end and the third end of the control member 4 are all in a connected state, so that the medium can be introduced, and the volume variable member 2 can be as Figure 4 shown and expanded.

[0040] As Figure 5 shown, the proximal sealing member 51 includes a connected proximal sealing outer body 512 and a proximal sealing inner body 511. The proximal sealing outer body 512 is located outside the control member 4 and connected to the control member 4. The proximal sealing inner body 511 forms a second channel. The proximal sealing inner body 511 is located inside the control member 4, and the end of the proximal sealing inner body 511 acts on the deformation member 52. Among them, the gasket 53 is arranged between the proximal sealing member 51 and the deformation member 52.

[0041] In this embodiment, the volume variable member 2 can be a balloon or others, the medium power member 3 can be a pressure pump or others, the control member 4 can be a three-way control valve or others, and the deformation member 52 can be a sealing ring or others. The first end of the control member 4 is connected to the protective tube body 1 by glue, the medium power member 3 and the second end of the control member 4 are in interference fit, the proximal end sealing member 51 is threadedly connected to the third end of the control member 4, and the distal end of the protective tube body 1 is in interference fit with the distal end of the endoscope 7 through a hose.

[0042] A protection device of the present invention, wherein the volume variable member 2 can be adjusted according to the diameter of the guiding sheath 8, so that there are multiple sizes of the protection device adapted to the guiding sheath 8. That is, when the diameter of the guiding sheath 8 is determined, there can be multiple possible sizes of the endoscope 7 adapted to the guiding sheath 8. Only need to select the protection device adapted to the endoscope 7, thus realizing that the guiding sheath 8 can be adapted to endoscopes 7 of different sizes. And since the economic cost of the protection device is much lower than that of the endoscope 7, it can be not limited by the endoscope 7 with a uniquely determined size, thereby reducing the economic cost.

[0043] Embodiment 2

[0044] This embodiment provides an insertion device, including an endoscope 7, a guiding sheath 8, and the protection device in Embodiment 1, wherein the endoscope 7 is located inside the guiding sheath 8, and the protection device is located between the endoscope 7 and the guiding sheath 8.

[0045] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An insertion device, characterized in that, Comprising an endoscope, a guiding sheath, and a protection device, wherein the endoscope is located within the guiding sheath, the protection device is located between the endoscope and the guiding sheath. After the diameter of the guiding sheath is determined, the guiding sheath is adapted to select different protection devices to fit endoscopes of different sizes. The protection device includes: A protection tube body having a first channel therein, and the first channel is adapted to the endoscope; A variable-volume member sleeved on the protection tube body and communicating with a medium communication hole on the protection tube body; A medium power member connected to the protection tube body, and the medium power member drives a medium through the first channel and the medium communication hole into the variable-volume member, so that the variable-volume member is adapted to the guiding sheath. The variable-volume member is a balloon, the medium power member is a pressure pump, and the distal end of the protection tube body is in interference fit with the distal end of the endoscope through a hose; A control member, with a first end of the control member connected to the protection tube body, and the medium power member connected to a second end of the control member; A proximal sealing member connected to a third end of the control member; A deformation member disposed within the control member, and through the action of the proximal sealing member on the deformation member, the deformation member is deformed to be hermetically adapted to the endoscope.

2. The insertion device according to claim 1, wherein, A stepped surface is provided within the third end of the control member, and the deformation member abuts against the stepped surface.

3. The insertion device according to claim 1, characterized in that, The proximal sealing member includes a proximal sealing outer body and a proximal sealing inner body. The proximal sealing outer body is located outside the control member and connected to the control member, and the proximal sealing inner body is located within the control member and the end of the proximal sealing inner body acts on the deformation member.

4. An insertion device according to claim 1, characterized in that, The protection device further includes a gasket disposed between the proximal sealing member and the deformation member.

5. An insertion device according to claim 1, characterized in that, The control member is a three-way control valve, and the deformation member is a sealing ring.

6. An insertion device according to claim 1, characterized in that, The first end of the control member and the protection tube body are connected by glue, the medium power member and the second end of the control member are in interference fit, and the proximal sealing member is threadedly connected to the third end of the control member.

7. An insertion device according to claim 1, characterized in that, The protection device further includes a fixing ring, and the variable-volume member is fixed to the protection tube body through the fixing ring.

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