Assembly structure of a traction rope sheath tube and an endoscope

Abstract

The utility model discloses a kind of assembly structure and endoscope of traction rope sheath pipe, it is related to medical instrument field, assembly structure includes sleeve, far-end limiting member and proximal end limiting member, far-end limiting member is installed in the insertion part of endoscope, proximal end limiting member is installed in the side of far-end limiting member close to the proximal end of insertion part, one end of sleeve is limited to abut on far-end limiting member along its axial direction, the other end of sleeve is limited to abut on proximal end limiting member along its axial direction, sleeve is adapted to be set on traction rope outside, and for transmitting pulling force, and realize the bending action of insertion part.Sleeve can be set on traction rope, to provide stable guiding effect for traction rope.One end of sleeve is limited to abut on far-end limiting member, the other end is limited to abut on proximal end limiting member, which realizes the fixing effect of sleeve by the limiting effect of far-end limiting member and proximal end limiting member, installation can be completed without dispensing, which optimizes installation operation.

Claims

1. An assembly structure of a traction rope sheath tube for an endoscope, characterized by, The assembly structure includes a sleeve, a distal limiting member, and a proximal limiting member. The distal limiting member is installed inside the insertion part of the endoscope, and the proximal limiting member is installed on the side of the distal limiting member near the proximal end of the insertion part. One end of the sleeve is axially limited and abuts against the distal limiting member, and the other end of the sleeve is axially limited and abuts against the proximal limiting member. The sleeve is adapted to be fitted over the traction rope and is used to transmit pulling force to achieve the bending action of the insertion part.

2. The assembly of claim 1, wherein, The distal limiting member is the serpentine segment of the insertion part.

3. The assembly structure according to claim 1, characterized in that, The distal limiting member abuts against the serpentine joint of the insertion portion.

4. The assembly of claim 3, wherein, The distal limiting member has a rope hole that passes through the distal limiting member. The rope hole is positioned opposite to the sleeve, and the diameter of the rope hole is smaller than the outer diameter of the sleeve. And / or, the distal limiting member is bonded to the proximal end of the serpentine segment.

5. The assembly of claim 4, wherein, Along the axial direction of the insertion part, the rope-threading hole of the limiting member and the rope-threading channel of the insertion part are arranged opposite to each other.

6. The assembly of claim 1, wherein, The proximal limiting member is installed inside the mounting component, which is the insertion part, the operating handle of the endoscope, or a connector between the insertion part and the operating handle; And / or, the proximal limiting member is detachably installed with the mounting member; And / or, the proximal limiting member is a transparent structural member.

7. The assembly of claim 6, wherein, The mounting component is provided with an assembly groove, and the proximal limiting member is installed in the assembly groove so that the proximal limiting member is connected to the mounting component.

8. The assembly of claim 6, wherein, The proximal limiting member is provided with an installation groove, the sleeve is inserted into the installation groove and the installation groove limits and abuts against it, and the traction rope can extend out of the proximal limiting member through the installation groove.

9. The assembly of claim 8, wherein, The mounting groove includes a first section and a second section connected together. The diameter of the first section is larger than that of the second section. A step is provided between the first section and the second section. The sleeve is embedded in the first section. The step abuts against and limits the sleeve. The traction rope can pass through the second section and extend out of the proximal limiting member.

10. An endoscope characterized by comprising: The device includes the assembly structure, insertion part, and operating handle as described in any one of claims 1-9, wherein the distal limiting member is disposed within the insertion part, the endoscope is provided with an installation member, the proximal limiting member is disposed within the installation member, a connecting structure is provided between the insertion part and the operating handle, and the installation member is the insertion part, the operating handle, or a connector connecting the insertion part and the operating handle.

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