CN213588220U - Disposable snake bone rubber - Google Patents

Abstract

The utility model provides a disposable snake bone rubber, include rubber body and set up in the fixed part at rubber body's both ends, wherein: the rubber body and the fixing part are integrally arranged; the inner diameter of the fixing part is smaller than that of the rubber body. The utility model has simple structure, low production cost and can realize large-scale production; the outer diameter of the disposable snake bone rubber of the utility model is consistent with the adjacent part, and the insertion of the endoscope is good; the utility model adopts a structure that the inner diameters of the two ends are smaller than the inner diameter of the middle part, the two ends are fixed reliably, and the sealing performance is good; the utility model has short fixed length at both ends and good insertability of the endoscope.

Description

Disposable snake bone rubber

Technical Field

The utility model relates to an endoscope field specifically relates to a disposable snake bone rubber.

Background

The endoscope has an elongated insertion portion that is insertable into a body cavity, a bending portion is provided on a distal end side of the insertion portion, and a tip portion is provided on a distal end side of the bending portion. The head end part is at least internally provided with an imaging unit, an image transmission unit and an illumination unit. The bending portion is operated by an operation device provided in the operation portion to perform a bending operation by operating the traction wire. A rubber is usually sleeved outside the bending part to ensure the sealing performance in the bending part and not influence the bending action of the bending part.

The prior art of the curved part rubber is a tube with a through hole and a certain wall thickness in an inner hole made of elastic material. As shown in figures 1 and 2, the assembly process is generally to install a rubber sleeve on the bending part by negative pressure, and then to fix the two ends by binding wire gluing. The operation process of wire binding, gluing and glue curing has high requirements and difficulty, so that the operation time is long, the glue curing time is long, the cost is high, and the large-scale production is not facilitated. Therefore, the binding wire gluing process is only suitable for the endoscope which is repeatedly used. In order to reduce cost and facilitate large-scale production, the disposable endoscope is sleeved on the bending part only by adopting a negative pressure method, and two ends of the disposable endoscope are not fixed by adopting a wire binding and gluing process, but are sleeved with adjacent parts of the disposable endoscope. The endoscope has the advantages of low cost and convenience for large-scale production, but has the problem that the outer diameters of the two ends of the bending part rubber exceed the outer diameter of the adjacent part of the bending part rubber, so that the insertability of the endoscope is influenced, and the discomfort of a patient is caused. Further, in order to ensure the sealing property, the length of the intussusception part must be secured to a certain extent, which increases the local rigidity length of the insertion part, affects the insertion property of the endoscope, and is liable to cause damage to the tissue inside the human body.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims at providing a disposable snake bone rubber.

According to the utility model provides a pair of disposable snake bone rubber, include rubber body and set up in the fixed part at rubber body's both ends, wherein:

the rubber body and the fixing part are integrally arranged;

the inner diameter of the fixing part is smaller than that of the rubber body.

Preferably, the rubber body and the fixing part have the same thickness.

Preferably, the inner wall of the rubber body is connected with the inner wall of the fixing part through a transition surface.

Preferably, the transition surface comprises a transition arc surface or a transition inclined straight surface.

Preferably, the fixing part includes a connection end and a fixing end, wherein:

the connecting end is smoothly connected with the rubber body;

the fixed end extends from the inner wall of the connecting end to the center of the connecting end.

Preferably, the outer diameter of the connecting end is the same as that of the rubber body, and the inner diameter of the connecting end is the same as that of the rubber body.

Preferably, the fixed end is formed by enclosing a semi-cylinder, the plane side of the semi-cylinder is used as the outer surface, and the arc side of the semi-cylinder is used as the inner surface.

Preferably, the arc-shaped side surface is smoothly connected with the end surface of the fixing portion.

Preferably, the fixed end comprises a ring-shaped member having an outer diameter identical to an inner diameter of the rubber body.

Preferably, the inner diameter and the outer diameter of the annular part are connected through a round chamfer surface.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the disposable snake bone rubber provided by the utility model can be sleeved on the bending part by adopting a negative pressure method, and the two ends are fixed, so that the operation is convenient;

2. the utility model has simple structure, low production cost and can realize large-scale production;

2. the outer diameter of the disposable snake bone rubber of the utility model is consistent with the adjacent part, and the insertion of the endoscope is good;

3. the utility model adopts a structure that the inner diameters of the two ends are smaller than the inner diameter of the middle part, the two ends are fixed reliably, and the sealing performance is good;

4. the utility model has short fixed length at both ends and good insertability of the endoscope.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a prior art curved eraser;

FIG. 2 is a schematic view showing the application of a prior art bending portion rubber;

fig. 3 is a schematic structural diagram of a first embodiment of the present invention;

fig. 4 is a cross-sectional view of a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention;

fig. 6 is a cross-sectional view of a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a third embodiment of the present invention;

fig. 8 is a cross-sectional view of a third embodiment of the present invention.

The figures show that:

eraser body 1

Fixedpart 2

Connectingend 201

Fixedend 202

Round chamferedsurface 203

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

FIGS. 3 and 4 show a first embodiment of the present invention, which comprises a rubber body and fixing parts disposed at two ends of the rubber body, wherein the rubber body and the fixing parts are integrally disposed; the fixed part includes link and stiff end, wherein: the connecting end is smoothly connected with the rubber body; the fixed end extends from the inner wall of the connecting end to the center of the connecting end. The outer diameter of the connecting end is the same as that of the rubber body, and the inner diameter of the connecting end is the same as that of the rubber body. The fixed end is formed by enclosing a semi-cylinder, the plane side surface of the semi-cylinder is used as the outer surface, and the arc side surface of the semi-cylinder is used as the inner surface. The arc-shaped side surface is smoothly connected with the end surface of the fixing part.

Fig. 5 and 6 show a second embodiment of the present invention, in which the length of the fixing portion is increased, and the fixing portion includes a connecting end and a fixing end, wherein: the connecting end is smoothly connected with the rubber body; the fixed end extends from the inner wall of the connecting end to the center of the connecting end. The outer diameter of the connecting end is the same as that of the rubber body, and the inner diameter of the connecting end is the same as that of the rubber body. The arc side of stiff end divide into two parts, and passes through the internal diameter and connect. The arc-shaped side surface divided into two parts is used as a round chamfer surface to connect the inner diameter and the outer diameter.

Fig. 7 and 8 show a third embodiment of the present invention, in which the thickness of the rubber body and the fixing portion is the same, and the inner diameter of the rubber body is larger than that of the fixing portion. The inner wall of the rubber body is connected with the inner wall of the fixing part through a transition surface. The transition surface can be a transition arc surface or a transition inclined straight surface.

The utility model has simple structure, low production cost and can realize large-scale production; the outer diameter of the disposable snake bone rubber of the utility model is consistent with the adjacent part, and the insertion of the endoscope is good; the utility model adopts a structure that the inner diameters of the two ends are smaller than the inner diameter of the middle part, the two ends are fixed reliably, and the sealing performance is good; the utility model has short fixed length at both ends and good insertability of the endoscope.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. The utility model provides a disposable snake bone rubber which characterized in that, includes rubber body and sets up the fixed part at rubber body's both ends, wherein:

the rubber body and the fixing part are integrally arranged;

the inner diameter of the fixing part is smaller than that of the rubber body.

2. The disposable snake bone rubber according to claim 1, wherein the fixing portion comprises a connecting end and a fixing end, wherein:

the connecting end is smoothly connected with the rubber body;

the fixed end extends from the inner wall of the connecting end to the center of the connecting end.

3. The disposable snake bone rubber as set forth in claim 2, wherein the connecting end has an outer diameter identical to the outer diameter of the rubber body and an inner diameter identical to the inner diameter of the rubber body.

4. The disposable snake bone rubber as in claim 2, wherein the fixed end is formed by a semi-cylinder enclosure with the flat side of the semi-cylinder as the outer surface and the curved side of the semi-cylinder as the inner surface.

5. The disposable snake bone rubber according to claim 4, wherein the arc-shaped side surface is smoothly connected with the end surface of the fixing part.

6. The disposable snake bone rubber as in claim 2, wherein the fixed end comprises a ring-shaped member having an outer diameter equal to the inner diameter of the rubber body.

7. The disposable snake bone rubber according to claim 6, wherein the inner diameter and the outer diameter of the ring-shaped member are connected by a round chamfer.

8. The disposable snake bone rubber as claimed in claim 1, wherein the rubber body and the fixing part have the same thickness.

9. The disposable snake bone rubber as set forth in claim 8, wherein the inner wall of the rubber body and the inner wall of the fixing part are connected by a transition surface.

10. The disposable snake bone rubber of claim 9, wherein the transition surface comprises a transition curved surface or a transition inclined straight surface.

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