Curved tube for endoscope and method for manufacturing curved tube for endoscope
A manufacturing method and technology for bending tubes, which are applied in endoscopes, manufacturing tools, applications, etc., can solve problems such as loss of superelasticity, and achieve the effect of increasing frictional force
Active Publication Date: 2021-09-07
OLYMPUS CORP
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Here, in the case where the bent pipe is made of Nitinol, it is also necessary to attach an operating wire for bending operation, but if the operating wire is brazed as described in Patent Document 1, for example, the characteristics of Nitinol will be lost due to high temperature. hyperelastic
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0041] Hereinafter, embodiments of the curved tube for endoscope and the method for manufacturing the curved tube for endoscope according to the present invention will be described with reference to the drawings. In addition, the present invention is not limited to the following embodiments, and the constituent elements in the following embodiments include elements that can be easily replaced by those skilled in the art, or elements that are substantially the same.
[0042] [Structure of endoscope]
[0043] Regarding the structure of the endoscope with the curved tube of the present invention, refer to figure 1 Be explained. Such as figure 1 As shown, the endoscope 100 has an operation unit 110 , an insertion unit 120 , and a universal cable 130 .
[0044] The operation part 110 is connected to the proximal end side of the insertion part 120, and is provided with various buttons and knobs for operating endoscope functions. The operation unit 110 is provided with a treatmen...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| Vickers hardness | aaaaa | aaaaa |
| Vickers hardness | aaaaa | aaaaa |
Login to View More
Abstract
The curved pipe (1) has: a curved pipe main body (10) provided with a wire passing portion (12) on its inner peripheral surface; an operating wire (13) for performing bending operations of the curved pipe main body (10); pipe parts (14), which is press-fitted to the operating wire (13), and is locked to the wire passing portion (12) of the curved tube main body (10); and particles (22), which are interposed in the outer periphery of the operating wire (13) Between the surface and the inner peripheral surface of the pipe member (14), the hardness of the particles (22) is higher than the hardness of the material constituting the operation wire (13) and the pipe member (14), and the particles (22) are buried in the Operate the outer peripheral surface of the wire (13) and the inner peripheral surface of the pipe member (14).
Description
technical field [0001] The present invention relates to a curved tube for an endoscope and a method for manufacturing the curved tube for an endoscope. Background technique [0002] A conventional curved tube for endoscopes (hereinafter simply referred to as "curved tube"), for example, as shown in Patent Document 1, has a structure in which a plurality of joint rings are joined by rivets, and the joint ring at the distal end is brazed. There are operating wires for bending operations on the knuckle. In the bent pipe having such a structure, since the joint rings are overlapped and joined in the radial direction, the thickness of the overlapped portion is doubled. Further, since the rivets for joining the node rings protrude toward the inner peripheral side and the outer peripheral side of the node rings, respectively, there is a problem that the inner diameter and the outer diameter are increased. [0003] Therefore, in recent years, there have been curved pipes that use ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/008G02B23/24
CPCB21K25/00B21F45/008B21F15/00A61B1/0055A61B1/0057A61B1/0011G02B23/24
Inventor 中川宽纪
Owner OLYMPUS CORP