Search

CN-224220107-U - Joint structure, insertion portion, and endoscope

CN224220107UCN 224220107 UCN224220107 UCN 224220107UCN-224220107-U

Abstract

The application discloses a connection structure, an insertion part and an endoscope, and relates to the technical field of medical instruments. The connecting structure is used for realizing connection between the snake bone pipe and the insertion pipe in the insertion part, the connecting structure is provided with an avoidance space which is penetrated along the axial direction of the connecting structure, the avoidance space is used for allowing an internal device of the insertion part to pass through, a concave is arranged on the side wall of the connecting structure surrounding the avoidance space and is arranged on a matching surface of the connecting structure, the matching surface is a surface of the connecting structure, which is correspondingly sleeved with a matching piece of the connecting structure, and the concave is used for containing glue solution between the connecting structure and the matching piece in the sleeving process of the connecting structure and the matching piece. The technical scheme at least can be used for solving the problem that the connection failure of the snake bone tube and the insertion tube of the endoscope is easy.

Inventors

  • DAI DI
  • TANG PENG
  • LIU YONGQING

Assignees

  • 湖南省华芯医疗器械有限公司

Dates

Publication Date
20260512
Application Date
20250522

Claims (10)

  1. 1. A joint structure for an insertion section of an endoscope, characterized in that the joint structure is used for realizing connection between a snake bone tube and an insertion tube in the insertion section; The connecting structure is provided with an avoidance space which is penetrated along the axial direction of the connecting structure, the avoidance space is used for allowing an internal device of the insertion part to pass through, a dent is arranged around the side wall of the avoidance space, the dent is arranged on a matching surface of the connecting structure, the matching surface is a surface of the connecting structure, which is sleeved with a matching piece of the connecting structure, and the dent is used for containing glue solution between the connecting structure and the matching piece in the sleeving process of the connecting structure and the matching piece.
  2. 2. The engagement structure of claim 1, wherein the recess comprises at least one of a strip recess, a wave recess, a spiral recess; And/or the engagement structure has a deformation notch extending axially from one end thereof for providing deformation when the engagement structure is nested with the mating member.
  3. 3. The joining structure according to claim 2, wherein the joining structure includes the recess extending in a stripe shape along an axial direction thereof, and/or the joining structure includes the recess extending in a stripe shape along a circumferential direction thereof, and/or the joining structure includes the recesses provided on both sides of the deformation notch in a circumferential direction.
  4. 4. A joinder structure according to any one of claims 1 to 3 wherein the recess is through a side wall of the joinder structure in a radial direction or the recess is a groove.
  5. 5. A joining structure according to any one of claims 1 to 3, wherein the joining structure comprises a snake bone tail, and/or the joining structure comprises a distal end of an insertion tube, and/or the joining structure comprises an adapter between the snake bone tube and the insertion tube.
  6. 6. The adapter structure according to claim 5, wherein in the case that the adapter structure comprises the adapter member, the adapter member comprises a first adapter section and a second adapter section which are distributed along the axial direction of the adapter member, the first adapter section is used for sleeving the snake bone tube, the second adapter section is used for sleeving the insertion tube, and the adapter member is provided with the recess arranged at the joint of the first adapter section and the second adapter section, so that after the snake bone tube and the insertion tube are sleeved in place on the adapter member, the snake bone tube and the insertion tube are adhered and fixed through glue solution in the recess of the joint.
  7. 7. The structure according to claim 6, wherein the recess of the joint penetrates through the side wall of the adapter in the radial direction, and the snake bone tube and the insertion tube are sleeved on the same side or different sides of the adapter in the radial direction.
  8. 8. The adapter structure of claim 6 or 7, wherein the adapter structure is configured such that, after the snake bone tube is mounted in place on the first adapter section, a first side wall of the recess of the junction is flush with a proximal end face of the snake bone tube, the first side wall being a side wall of the recess axially closer to a distal end side thereof along the adapter, and/or such that, after the insertion tube is mounted in place on the second adapter section, a second side wall of the recess of the junction is flush with a distal end face of the insertion tube, the second side wall being a side wall of the recess axially closer to a proximal end side thereof along the adapter.
  9. 9. An insert comprising the engagement structure of any one of claims 1 to 8.
  10. 10. An endoscope comprising the insertion portion according to claim 9.

Description

Joint structure, insertion portion, and endoscope Technical Field The application relates to the technical field of medical instruments, in particular to a connecting structure, an inserting part and an endoscope. Background With the continuous development of medical technology, endoscopes are widely used in the diagnosis and treatment process of diseases. When using an endoscope, it is necessary to send the insertion portion of the endoscope into a patient, and to pull the distal end portion of the insertion portion by a pulling rope to bend the active bending section, thereby adjusting the orientation of the distal end of the insertion portion to obtain image information of a target site (for example, a lesion). In the related art, an insertion portion of an endoscope has a snake bone tube for realizing active bending and an insertion tube for realizing passive bending therein, and the two are fixedly assembled by adhesion. In practice, with the endoscope of the related art, the connection failure caused by detachment of the snake bone tube from the insertion tube often occurs, so that the endoscope cannot be used normally. Disclosure of utility model The application provides a connection structure, an insertion part and an endoscope, which at least can be used for solving the problem that a snake bone tube and an insertion tube of the endoscope are easy to be connected and fail. In a first aspect, embodiments of the present application provide an engagement structure for an insertion portion of an endoscope. The connection structure is used for realizing connection between the snake bone tube and the insertion tube in the insertion part. The connecting structure is provided with an avoidance space which is penetrated along the axial direction of the connecting structure, the avoidance space is used for allowing an internal device of the insertion part to pass through, a dent is arranged around the side wall of the avoidance space, the dent is arranged on a matching surface of the connecting structure, the matching surface is a surface of the connecting structure, which is sleeved with a matching piece of the connecting structure, and the dent is used for containing glue solution between the connecting structure and the matching piece in the sleeving process of the connecting structure and the matching piece. In a second aspect, embodiments of the present application provide an insertion portion comprising the engagement structure of the first aspect of the present application. In a third aspect, embodiments of the present application provide an endoscope comprising the insertion portion of the second aspect of the present application. The technical scheme adopted by the application can achieve the following beneficial effects: According to the connecting structure disclosed by the embodiment of the application, the concave is arranged on the side wall and is correspondingly arranged on the matching surface sleeved with the matching piece, and based on the structural layout, the part of the glue solution which is originally scraped away can be pushed into the concave in the assembling process of the connecting structure and the matching piece, so that the connecting structure and the matching piece can be reliably and effectively adhered and fixed together, and the technical aim of avoiding connection failure of a snake bone pipe and an insertion pipe is achieved. Secondly, after the glue solution in the concave is solidified, an anchoring effect can be achieved between the connecting structure and the matching piece, and the anti-disengaging effect and the bonding quality between the connecting structure and the matching piece are optimized. In addition, the glue solution can be put into the concave in advance before the assembly, so that the more sufficient glue solution can be reserved in the concave after the assembly is in place, and the more sufficient glue solution in the concave is ensured to provide more excellent bonding quality. Compared with the related art, the embodiment of the application relies on the connecting structure to effectively improve the bonding quality between the snake bone tube and the insertion tube, thereby preventing the connection failure between the snake bone tube and the insertion tube. Drawings The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings: FIG. 1 is a schematic illustration of an insert disclosed in some embodiments of the present application; FIG. 2 is an exploded view of a snake bone tail, engagement structure and insertion tube according to some embodiments of the application; FIG. 3 is a schematic view of a structure of a linking structure according to some embodime