ENDOSCOPE HEAD AND ENDOSCOPE PROVIDED THEREWITH

• US 20190328215A1
• Filed: 11/21/2017
• Published: 10/31/2019
• Est. Priority Date: 11/22/2016
• Status: Active Grant

• Current Assignee: Digital Endoscopy GmbH (Hoya Corporation)
• Original Assignee: Digital Endoscopy GmbH (Hoya Corporation)
• Inventors: KOLBERG, Stefan
• Granted Patent: US 11,317,785 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 1/0008 characterised by distal tip features
• CPC Class Codes: A61B 1/00098 Deflecting means for inserted tools
• CPC Class Codes: A61B 1/0057 Constructional details of force transmission elements, e.g. control wires
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/273 for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: G02B 23/2476 Non-optical details, e.g. housings, mountings, supports

Abstract

The invention relates to an endoscope head including an endoscope head body in which at least one working channel is formed, wherein a pivotable Albarran lever provided distally of the distal end of the working channel, wherein, on the endoscope head body, a pivot member, actuatable from the proximal side is provided for pivoting the Albarran lever, wherein a pulling wire channel extends in the endoscope head body and has a pulling wire for actuating the pivot member guided therein, wherein the pivot member has a protrusion, and wherein the pulling wire is capable of displacing a sliding member having a surface on which the protrusion is supported, so that the pivot member is rotated by displacing the sliding member.

Claims

1. An endoscope head comprising an endoscope head body in which at least one working channel is formed,

wherein a pivotable Albarran lever is provided distally of the distal end of the working channel,

wherein, on the endoscope head body, a pivot member actuatable from the proximal side is provided tier pivoting the Albarran lever,

wherein a pulling wire channel extends in the endoscope head body and guides a pulling wire for actuating the pivot member is guided,

wherein the pivot member has a protrusion, and

wherein the pulling wire is capable of displacing a sliding member having a surface on which the protrusion is supported, so that the pivot member is rotated by displacing the sliding member.

2. The endoscope head according to claim 1, wherein

the protrusion of the pivot member has the shape of an involute which is supported on the surface of the sliding member in a rolling manner.

3. The endoscope head according to claim 1, wherein

the sliding member has a first surface on which a first outer surface of the protrusion is supported, and

the sliding member has a second surface on which a second outer surface of the protrusion is supported.

4. The endoscope head according to claim 3, wherein

the sliding member is configured such that,

when the pulling wire moved in the proximal direction, the first surface of the sliding member has the first outer surface of the protrusion to roll thereon in such a way that the pivot member pivots the Albarran lever in the proximal direction, and,

when the pulling wire moved in the distal direction, the second surface of the sliding member has the second outer surface of the protrusion roll thereon in such a way that the pivot member pivots the Albarran lever in the distal direction.

5. The endoscope head according to claim 3, wherein,

at the sliding member, the first surface and the second surface face each other and,

at the protrusion, the first outer surface and the second outer surface face in opposite directions.

6. The endoscope head according to claim 1, wherein,

by means of the pulling wire, the sliding member is displaceable back and forth exclusively in the axial direction of the endoscope head.

7. The endoscope head according to claim 1, wherein

the distal end of the pulling wire channel is sealed at the endoscope head body.

8. The endoscope head according to claim 1, wherein

the distal end of the pulling wire is anchored to the endoscope head body, and

the sliding member is arranged at the pulling wire proximally of the anchoring point.

9. The endoscope head according to claim 1, wherein,

when the pulling wire is pulled from the proximal side, a pulling wire sleeve connecting the sliding member with the proximal end of the pulling wire channel moves the sliding member relative to the pulling wire in the distal direction.

10. The endoscope comprising an endoscope head according to claim 1.