Search

CN-224206805-U - Four-way bending endoscope

CN224206805UCN 224206805 UCN224206805 UCN 224206805UCN-224206805-U

Abstract

A four-way bending endoscope includes a housing, a working portion including a bellows mechanism bendable in at least one direction, a flexible tube for connecting the bellows mechanism and the housing, and an operation portion including a rotation operation mechanism configured to drive the bellows mechanism to bend in at least one direction, a rotation control mechanism configured to restrict a rotational degree of freedom of the rotation operation mechanism in a locked state so that the rotation operation mechanism cannot drive the bellows mechanism, and to make the rotation operation mechanism freely drive the bellows mechanism in an unlocked state. According to the utility model, the snake bone tube mechanism, the rotation operating mechanism and the rotation control mechanism are arranged, so that a user can adjust the bending degree of the snake bone tube mechanism through the rotation operating mechanism and then operate the rotation control mechanism to enable the rotation operating mechanism to be in a locking state, and the bending current situation of the snake bone tube mechanism is kept unchanged.

Inventors

  • LEI HAILONG
  • ZHOU YUN
  • TANG TIANXIANG
  • Wu Meichuan

Assignees

  • 深圳欧卓斯医疗有限公司

Dates

Publication Date
20260508
Application Date
20241225

Claims (10)

  1. 1. A four-way bending endoscope comprising a housing (8), a working portion and an operating portion, characterized in that: The shell (8) is internally provided with a mounting cavity; The working portion includes: A snake bone tube mechanism (2) configured to be bendable and deformable in at least one direction; a flexible tube (3) with one end connected to the snake bone tube mechanism (2) and the other end connected to the housing (8) and in communication with the mounting cavity; the operation section includes: A rotational operation mechanism (6) at least partially disposed in the mounting cavity of the housing (8), the rotational operation mechanism (6) extending from an end of the flexible tube (3) away from the snake bone tube mechanism (2) along and through the flexible tube (3) and connected to the snake bone tube mechanism (2), the rotational operation mechanism (6) being configured to drive the snake bone tube mechanism (2) to bend and deform in at least one direction; A rotation control mechanism (7) configured to restrict a rotational degree of freedom of the rotation operation mechanism (6) in a locked state so that the rotation operation mechanism (6) cannot drive the snake bone tube mechanism (2) and so that the rotation operation mechanism (6) can freely drive the snake bone tube mechanism (2) in an unlocked state.
  2. 2. The four-way bending endoscope according to claim 1, characterized in that the rotational operating mechanism (6) comprises: At least one cable along and through the flexible tube (3) and connected to the snake bone tube mechanism (2); A rotational operating assembly connected to the at least one cable, the rotational operating assembly being configured to drive the snake bone tube mechanism (2) to bend and deform in at least one direction by tightening or releasing the at least one cable.
  3. 3. The four-way bend endoscope of claim 2, wherein: The rotational operation assembly includes: A first rotating member (61) disposed in the mounting cavity of the housing (8) and connected to a first pivot (63), the first rotating member (61) being configured to rotate with the first pivot (63) about a first pivot axis of the first pivot (63); A second rotating member (62) disposed in the mounting cavity of the housing (8) and connected to a second pivot (64), the second rotating member (62) being configured to rotate with the second pivot (64) about a second pivot axis of the second pivot (64), the first pivot axis being disposed in-line with the second pivot axis; The first rotating member (61) and the second rotating member (62) are configured to rotate independently of each other.
  4. 4. A four-way bending endoscope according to claim 3, characterized in that said rotation control mechanism (7) comprises: A female lock member (71) movably provided to one of the first pivot (63) and the second pivot (64); A male lock member (72) rotatably provided to one of the first pivot (63) and the second pivot (64), and the male lock member (72) is configured to drive the female lock member (71) to move in a first axial direction of one of the first pivot (63) and the second pivot (64) to abut against and apply a pressure in the first axial direction to one of the first rotating member (61) and the second rotating member (62) when the male lock member (72) rotates by a certain rotation angle.
  5. 5. The four-way bend endoscope of claim 4, wherein; the male lock member (72) includes: A male lock body (721) rotatably provided to one of the first pivot and the second pivot; A male lock connection inclined surface (722) provided on an end surface of the male lock main body (721) facing the female lock member (71); The female lock member (71) includes: a female lock body (711) movably provided to one of the first pivot and the second pivot; A female lock connection inclined surface (712) provided on an end surface of the female lock body (711) facing the male lock body (721); The male lock connection ramp (722) is configured to mate with the female lock connection ramp (712) cam to drive movement of the female lock body (711) in the first axial direction when the male lock member (72) is rotated a certain rotational angle.
  6. 6. The four-way bending endoscope according to claim 1, characterized in that said snake bone tube mechanism (2) comprises at least one snake bone unit (21), said snake bone unit (21) comprising: A snake bone body (211) having a ring shape as a whole, a first side (26) arranged along a second axial direction of the snake bone body (211) and a second side (27) positioned on an opposite side of the first side (26) along the second axial direction; At least one first hinge (212) provided to the first side (26) of the snake bone body (211); At least one second hinge (213) provided at the second side (27) of the snake bone body (211), the first hinge (212) and the second hinge (213) being disjoint when viewed in the second axial direction; At least two threading portions (214) corresponding to the number of the first hinge portions (212) and the second hinge portions (213), the at least two threading portions (214) being provided to at least one of the first side (26) and the second side (27) of the snake bone body (211).
  7. 7. The four-way bend endoscope of claim 6, wherein: The snake bone unit (21) comprises at least one of a first shape (22) and a second shape (23); the first shape (22) comprises an annular body (221) with a notch; The second shape (23) comprises a hinge member (234) adapted to the inner ring side of the ring-shaped body (221) in order to form a hinge fit.
  8. 8. The four-way bend endoscope of claim 7, wherein: An outer annular groove is formed in the first shape (22), the outer annular groove (222) is located on the outer annular side of the inner ring body, and one end of the outer annular groove (222) penetrates through the first side (26) or the second side (27) of the snake bone body (211); The second shape (23) is provided with an arc-shaped block (231), and the arc-shaped block (231) is configured to be at least partially embedded in the outer annular groove (222).
  9. 9. The four-way bending endoscope of claim 8, wherein the second shape (23) is provided with an inner arc-shaped groove (232), the inner arc-shaped groove (232) is positioned on the inner ring side of the arc-shaped block (231), and the annular body (221) on the first shape (22) can be at least partially embedded in the inner arc-shaped groove (232).
  10. 10. The four-way bending endoscope according to claim 6, wherein the snake bone body (211) is recessed inward in a radial direction to form the threading portion (214), and the threading portion (214) is provided on an opposite side of the first hinge portion (212) or the second hinge portion (213) in the second axial direction.

Description

Four-way bending endoscope Technical Field The utility model relates to the technical field of medical equipment, in particular to a four-way bending endoscope. Background The endoscope is used for inspecting various parts of a human body through a natural cavity of the human body, and in the process of inspection, the inspected parts are imaged and observed through a camera of the endoscope, and specific parts are treated through treatment tools such as biopsy forceps, a stripping electrotome, an injection needle, laser lasers, a stone-taking basket and the like. Because the natural cavity of the human body has large curvature, a plurality of bending parts exist in the digestive system, the urinary system and the respiratory system, and the front end of the endoscope can be greatly bent during the examination to carry out detailed examination on the tissue surface and each corner. This requires that the entire insertion tube be responsive at any time when the front end of the bent portion is bent at a small radius and a large angle, and that the rear end of the insertion tube be not bent too much when the front end of the insertion tube is bent at a large angle, and that the entire insertion tube be bent significantly may cause the tube to press surrounding tissues, causing severe pain to the examinee. At present, in order to achieve a large bending angle of the front end of the insertion tube, a common way is to use a metal snake bone to wrap a woven mesh and a skin outside the insertion tube or use an insertion tube with a multi-cavity tube design. For the insertion tube designed by the multi-cavity tube, when the front end is bent at a large angle, the whole tube can be obviously bent, the timely response of the front end bending part to the rotation operation of the rear end handle can not be realized, and meanwhile, the physical burden of a checked person is increased. Disclosure of Invention The utility model aims to provide a four-way bending endoscope, which aims to solve at least one technical problem in the prior art. In order to solve the technical problems, the utility model aims at providing a four-way bending endoscope which comprises a shell, a working part and an operating part, The shell is internally provided with a mounting cavity; The working portion includes: a snake bone tube mechanism configured to be bendable and deformable in at least one direction; one end of the flexible tube is connected with the snake bone tube mechanism, and the other end of the flexible tube is connected with the shell and communicated with the mounting cavity; the operation section includes: A rotational operation mechanism at least partially disposed in the mounting cavity of the housing, the rotational operation mechanism extending along and through the flexible tube from an end of the flexible tube remote from the snake bone tube mechanism and connected to the snake bone tube mechanism, the rotational operation mechanism configured to drive the snake bone tube mechanism to bend and deform in at least one direction; a rotation control mechanism configured to restrict a rotational degree of freedom of the rotation operation mechanism in a locked state so that the rotation operation mechanism cannot drive the snake bone tube mechanism and to make the rotation operation mechanism freely drivable the snake bone tube mechanism in an unlocked state. Further, the rotation operation mechanism includes: At least one cable along and through the flexible tube and connected to the snake bone tube mechanism; And a rotational operation assembly connected to the at least one cable, the rotational operation assembly being configured to drive the snake bone tube mechanism to bend and deform in at least one direction by tightening or releasing the at least one cable. Further, the rotation operation assembly includes: A first rotating member disposed in the mounting cavity of the housing and coupled to a first pivot, the first rotating member configured to rotate with the first pivot about a first pivot axis of the first pivot; A second rotating member disposed in the mounting cavity of the housing and connected to a second pivot, the second rotating member configured to rotate with the second pivot about a second pivot axis of the second pivot, the first pivot axis disposed in-line with the second pivot axis; The first rotating member and the second rotating member are configured to rotate independently of each other. Further, the rotation control mechanism includes: a female lock member movably provided to one of the first pivot shaft and the second pivot shaft; A male lock member rotatably provided to one of the first pivot shaft and the second pivot shaft, and configured to drive the female lock member to move in a first axial direction of one of the first pivot shaft and the second pivot shaft to abut and apply pressure in the first axial direction to one of the first rotating member and the second rotating member when