Medical visualisation device

Patent metadata

Field	Value
Publication number	US-12268368-B2
Application number	US-202217666316-A
Country	US
Kind code	B2
Filing date	Feb 7, 2022
Priority date	Apr 30, 2020
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

A medical visualisation device including an instrument elevator having a guide surface for engagement with an instrument protruding through a tip part instrument channel and a X-ray transparent housing. The instrument elevator is radiopaque and pivotable around a pivot axis to adjust a guide angle between the guide surface and a longitudinal axis. The pivot axis being substantially perpendicular to the longitudinal axis and a viewing direction. A control wire being coupled to the instrument elevator to transfer a force exerted on the control wire to the instrument elevator to adjust the guide angle.

First claim

What is claimed is:

1. A medical visualization device comprising:
an insertion tube;
a tip part extending distally from the insertion tube, the tip part including a housing, an instrument elevator rotatably supported by the housing, a light emitting device having an optical axis, and a camera having a field of view; and
a control wire extending through the insertion tube to the instrument elevator, wherein translation of the control wire causes the instrument elevator to rotate,
wherein the housing is transparent in X-ray images and comprises an instrument opening and a secondary opening opposite the instrument opening;
wherein the camera is positioned within the housing;
wherein the light emitting device is positioned within the housing with the optical axis aimed to illuminate at least a portion of the field of view of the camera;
wherein the instrument elevator comprises a radiopacity agent; and
wherein the instrument elevator comprises at least 70% polyoxymethylene (POM).

2. The medical visualization device of claim 1 , wherein the housing comprises at least one light guiding section, and wherein the optical axis is aimed at the at least one light guiding section.

3. The medical visualization device of claim 2 , wherein the light emitting device is adhered to the at least one light guiding section by transparent adhesive.

4. The medical visualization device of claim 1 , wherein the housing defines an interior space, further comprising, in the interior space, opaque potting material surrounding the camera.

5. The medical visualization device of claim 4 , wherein the opaque potting material is transparent in X-ray images.

6. The medical visualization device of claim 1 , further comprising an opaque protective ring secured to the housing and defining a camera opening, and wherein the camera is at least partly positioned within the camera opening of the opaque protective ring.

7. The medical visualization device of claim 1 , wherein the insertion tube comprises a bending section at a distal end thereof, the bending section being transparent in X- ray images.

8. The medical visualization device of claim 1 , wherein the instrument elevator comprises an X-ray detectable material.

9. The medical visualization device of claim 1 , wherein the instrument elevator has a color, and wherein the color comprises an L* between 15 to 75, an a* between negative 10 to positive 10, and a b* between negative 10 to positive 10, as measured by a CIEL*a*b* colour code system.

10. The medical visualization device of claim 1 , wherein the housing comprises at least one light guiding section, wherein the optical axis is aimed at the at least one light guiding section, wherein the light emitting device is adhered to the at least one light guiding section by transparent adhesive, and wherein the housing defines an interior space, the medical visualization device further comprising,:
in the interior space, opaque potting material transparent in X-ray images and surrounding the camera,; and
an opaque protective ring secured to the housing and defining a camera opening, and
wherein the camera is at least partly positioned within the camera opening of the opaque protective ring.

11. The medical visualization device of claim 1 , wherein the control wire has a primary segment, a secondary segment, and a first bend between the primary segment and the secondary segment, wherein the instrument elevator comprises a first side, a second side opposite the first side, and a conduit extending between the first side and the second side, and wherein the primary segment is arranged on the first side and the secondary segment extends through the conduit.

12. The medical visualization device of claim 11 , wherein the control wire has a tertiary segment and a second bend between the secondary segment and the tertiary segment, and wherein the tertiary segment is positioned on the second side.

13. The medical visualization device of claim 12 , further comprising a sleeve element enclosing the tertiary segment, the second bend and at least a portion of the secondary segment.

14. The medical visualization device of claim 1 , wherein the tip part comprises an intermediate wall separating an instrument channel and a control wire compartment, the intermediate wall having an intermediate wall opening, and wherein the control wire extends through the control wire compartment and through the intermediate wall opening to the instrument elevator.

15. The medical visualization device of claim 14 , wherein the control wire compartment comprises a ceiling surface to limit deflection of the control wire in a viewing direction.

16. The medical visualization device of claim 14 , wherein the instrument elevator comprises a first side, a second side opposite the first side, and a conduit extending between the first side and the second side, wherein the instrument elevator comprises a first support point on the first side and a second support point on the second side, the second support point offset relative to the first support point.

17. The medical visualization device of claim 1 , further comprising a handle, wherein the insertion tube extends from the handle.

18. A visualization system comprising the medical visualization device of claim 1 and a monitor device, wherein the monitor device can be communicatively coupled with the medical visualization device to present live images on a display based on images obtained by the medical visualization device.

19. The visualization system of claim 18 , wherein the monitor device comprises the display.

20. A medical visualization device comprising:
an insertion tube;
a tip part extending distally from the insertion tube, the tip part including a housing, an instrument elevator rotatably supported by the housing, a light emitting device having an optical axis, and a camera having a field of view; and
a control wire extending through the insertion tube to the instrument elevator, wherein translation of the control wire causes the instrument elevator to rotate,
wherein the housing is transparent in X-ray images and comprises an instrument opening and a secondary opening opposite the instrument opening;
wherein the camera is positioned within the housing;
wherein the light emitting device is positioned within the housing with the optical axis aimed to illuminate at least a portion of the field of view of the camera;
wherein the instrument elevator comprises a radiopacity agent and a color; and
wherein the color comprises an L* between 15 to 75, an a* between negative 10 to positive 10, and a b* between negative 10 to positive 10, as measured by a CIEL*a*b* colour code system.

Assignees

• Ambu As

Inventors

• Hansen Jan Guldberg
• Matthison-Hansen Kaspar Mat
• Hjortlund Jonas
• Abicht Felix-Johannes
• Schütz Günter Wilhelm
• Dillinger Anja Katrin

Classifications

• A61B1/05

  characterised by the image sensor, e.g. camera, being in the distal end portion · CPC title

• A61B1/00098 Primary

  Deflecting means for inserted tools · CPC title

• A61B1/00165

  with light-conductive means, e.g. fibre optics (A61B1/07 takes precedence) · CPC title

• A61B1/0011

  Manufacturing of endoscope parts · CPC title

• A61B1/018

  for receiving instruments · CPC title