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Bendable endoscope provided with tail end passively connected in a bent mode

A technology of endoscopy and bending, applied in the fields of endoscopy, medical science, diagnosis, etc., to achieve the effect of increasing curvature, facilitating passive bending adjustment, and improving accessibility

Inactive Publication Date: 2017-05-31
SHANGHAI CHANGHAI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, clinical results show that due to the variety and complexity of the human body cavity, there are positions that the above-mentioned endoscope cannot reach smoothly.

Method used

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  • Bendable endoscope provided with tail end passively connected in a bent mode
  • Bendable endoscope provided with tail end passively connected in a bent mode
  • Bendable endoscope provided with tail end passively connected in a bent mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] according to Figure 1 to Figure 4 A flexible endoscope with a passive bending connection is shown, which is composed of an endoscope and a telescopic sheath 1. The endoscope includes an endoscope body 21 and a rigid section 20 sequentially connected to the endoscope body , the passive bending section 22 and the controllable bending section 23; the passive bending section can be composed of at least 5 layers from inside to outside. The structure of each layer from the inside to the outside can be respectively: the first metal mesh belt braided layer 221, the metal leaf spring layer 222, the second metal mesh belt braided layer 223, the reinforced protective layer 224, and the appearance protective layer 225, among which the reinforced protective layer 224 It is made of black TPU, the appearance protection layer 225 is made of transparent TPU, and the second isolation layer 225 has through holes parallel to the tube holes. The reinforced protective layer can be replaced...

Embodiment 2

[0038] The structure of the present invention can be applied in combination with the structure in CN201310301252.3, including a control mechanism, wherein the control structure includes a turning radius adjustment unit and a lens deflection direction adjustment unit. The radius of gyration adjustment unit includes a control piece and a control line, the control piece is set in the cavity of the endoscope body, one end of the control line is connected to the control piece, and the other end is set on the rigid section, the passive bending section and the controllable bending section. inside the tube hole.

[0039]The lens deflection direction adjustment unit includes a rotating block, an exchange shaft and an adjustment line. The rotating block is movably fixed on the exchange shaft, and an adjustment knob is provided at one end of the rotating block; The exchange shaft is attached to the rigid section; the adjustment line is arranged at both ends of the rotating block, and the...

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Abstract

The invention relates to a bendable endoscope provided with a tail end passively connected in a bent mode. The bendable endoscope comprises an endoscope body, a rigid section, a controllable bent section and a lens, wherein the rigid section, the controllable bent section and the lens are sequentially connected with the endoscope body, the rigid section and the controllable bent section are connected through a passive bent section, and the passive bent section is of a tubular structure and comprises at least five layers of structures which are respectively a first metal mesh belt braided layer, a metal piece shaped spring layer, a second metal mesh belt braided layer, a reinforced protection layer and an appearance protection layer from inside to outside. By adding the passive bent section between the rigid section and the controllable bent section connected with the endoscope, a bending angle of the endoscope in operation is increased.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a minimally invasive surgical endoscope. Background technique [0002] Endoscope is an important instrument that can be sent into the human cavity for visual inspection and surgical treatment. It is used in many fields such as the examination of gastrointestinal diseases, the examination of pancreas and biliary tract diseases, and the examination of urinary tract. Clinically, endoscopes can be classified according to whether the mirror body can change direction, and can be divided into two types: hard mirrors and soft mirrors. The hard mirror is a prism optical system. The biggest advantage is that the image is clear. It can be equipped with multiple working channels and select multiple viewing angles. It is easy to operate, but there is a blind spot in the field of view. The soft mirror is a fiber optic system. The biggest feature of this fiber optic endoscope is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/005
CPCA61B1/0055A61B1/0056
Inventor 孙颖浩
Owner SHANGHAI CHANGHAI HOSPITAL
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