Video laryngoscope with detachable light and image guides

• US 20030088156A1
• Filed: 10/31/2002
• Published: 05/08/2003
• Est. Priority Date: 10/14/1999
• Status: Active Grant

• Current Assignee: Karl Storz Se & Co. Kg
• Original Assignee: Karl Storz Se & Co. Kg
• Inventors: Ehrhardt, Andre, Chatenever, David, Irion, Klaus M., Barry, James P., Berci, George, Mattsson-Boze, Daniel, Kaplan, Marshal B., Rudischhauser, Jurgen
• Granted Patent: US 6,890,298 B2
• Time in Patent Office: Days
• US Class Current: 600/188
• CPC Class Codes: A61B 1/00165 with light-conductive means, e.g. fibre optics A61B1/07 takes precedence
• CPC Class Codes: A61B 1/00188 with focusing or zooming features
• CPC Class Codes: A61B 1/00195 with eyepieces
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/07 using light-conductive means, e.g. optical fibres
• CPC Class Codes: A61B 1/267 for the respiratory tract, e.g. laryngoscopes, bronchoscopes
• CPC Class Codes: G02B 23/2484 Arrangements in relation to a camera or imaging device processing or control of video signals generated by an endoscope H04N23/60, H04N23/70
• CPC Class Codes: G03B 17/48 adapted for combination with other photographic or optical apparatus

Abstract

A combination laryngoscope and video display for providing images of the area ahead of the laryngoscope to facilitate insertion without damaging the surrounding tissue; the laryngoscope having a detachable blade and a rigid, detachable light and image guide attachment device for providing illuminating light ahead of the blade and for detecting the reflected light.

Claims

1. An intubating laryngoscope system comprising:

a blade;

a handle including;

a joinder for detachably connecting said handle to said blade;

a two-stem receptacle connector;

a first light guide for transmitting illuminating light and terminated in the two-stem receptacle connector;

an first image guide for transmitting reflected light and terminated in the two-stem receptacle connector; and

a light and image guiding attachment, detachably connectable to said handle, the light and image guiding attachment including;

a two-stem plug connector designed to mate with the two-stem receptacle connector;

a second light guide for transmitting illuminating light and terminated in the two-stem plug connector;

a second image guide for transmitting reflected light and terminated in the two-stem plug connector; and

a substantially rigid outer casing for encasing the second light guide and the second image guide;

wherein said first light guide and said first image guide are in communication with said second light guide and said second image guide respectively, via the receptacle and plug connectors when in an engaged position.

2. The system according to claim 1 wherein said two-stem plug connector comprises a first stem and a second stem, the second stem being larger in diameter and length than the first stem.

3. The system according to claim 2 wherein said two-stem receptacle connector and said two-stem plug connector comprise a locking element to rigidly maintain the connectors together when in an engaged position.

4. The system according to claim 3 wherein said locking element is displaceable transversely to a direction of movement to engage the connectors, said locking element being engagable into a recess provided on a stem of said two-stem plug connector.

5. The system according to claim 4 such that when the two-stem receptacle connector with the two-stem plug connector are engaged there is an audible indication upon engagement.

6. The system according to claim 2 wherein the second stem has a conical end section followed by an undercut.

7. The system according to claim 6 wherein the undercut is configured as an annular groove of the second stem.

8. The system according to claim 2 wherein the first and second stems and said two-stem receptacle connector each have windows.

9. The system according to claim 1 wherein said handle is adapted to received an eyepiece.

10. The system according to claim 1 in which said light and image guiding attachment comprises stainless steel.

11. The system according to claim 1 in which said light guiding cable is a fiber optic cable.

12. The system according to claim 1 in which said light source is a battery and bulb combination in said handle to provide illuminating light to said light guiding cable.

13. The system according to claim 1 wherein said light and image guiding attachment further comprises an optically clear and transparent window for sealing a distal end of said light and image guide attachment.

14. An intubating laryngoscope system comprising:

a handle having first light guide and a first image guide;

a blade;

a joinder for detachably connecting said handle to said blade;

a receptacle connector, for terminating the first light guide and the first image guide;

a light and image guiding attachment, detachably connectable to said handle, including;

a plug connector having a first stem and a second stem;

a second light guide terminated in the first stem;

a second image guide terminated in the second stem; and

a substantially rigid outer casing for encasing the second light guide and the second image guide.

15. The system according to claim 14 wherein said receptacle connector and said plug connector comprise a locking element to rigidly maintain the connectors together when in an engaged position.

16. The system according to claim 15 wherein said locking element is displaceable transversely to a direction of movement to engage the connectors, said locking element being engagable into a recess provided on the second stem.

17. The system according to claim 16 such that when the receptacle connector with the plug connector are engaged there is an audible indication upon engagement.

18. The system according to claim 16 wherein said second stem has a conical end section followed by an undercut.

19. The system according to claim 17 wherein the undercut is configured as an annular groove of the second stem.

20. The system according to claim 14 wherein the second stem and the receptacle connector receiving it each have an optically clear transparent window.

21. The system according to claim 14 wherein said handle is adapted to received an eyepiece.

22. The system according to claim 14 in which said light and image guiding attachment comprises stainless steel.

23. The system according to claim 22 in which said light and image guiding attachment is closed at a distal end with an optically clear and transparent window.

24. A method for providing an intubating laryngoscope system including the steps of:

providing a handle having a first light guide and a first image guide;

providing a blade;

providing a receptacle connector located in the handle;

terminating the first light guide and the first image guide in the receptacle connector;

providing a rigid light and image attachment that is detachably connectable to the handle, the light and image attachment having a second light guide and a second image guide located therein;

providing a plug connector at a proximal end of the light and image attachment;

terminating the second light guide in the plug connector;

terminating the second image guide in the plug connector;

detachably connecting the blade to the handle; and

detachably connecting the light and image attachment to the handle such that the first light guide and the first image guide are in communication with the second light guide and the second image guide respectively, via the receptacle and plug connectors when in an engaged position.

25. The method of claim 24 further comprising the step of providing a locking element for the receptacle connector and the plug connector and rigidly maintaining them together when in an engaged position.

26. The method of claim 25 further comprising the step of providing an audible indication when the receptacle connector with the plug connector are fully engaged.

27. The method of claim 24 further comprising the step of adapting said handle to receive an eyepiece.

28. The method of claim 24 wherein said in said light and image attachment comprises stainless steel.

29. The method of claim 24 further comprising the step of providing an optically clear and transparent window at a distal end of the light and image attachment.

30. An intubating laryngoscope system comprising:

a handle having a first light guide and a first image guide;

a blade connected to said handle;

a receptacle connector for terminating the first light guide and the first image guide; and

a substantially rigid light and image guiding attachment, detachably connectable to said handle, and including;

a plug connector insertable into said receptacle connector;

a second light guide terminated in the plug connector;

a second image guide terminated in the plug connector;

wherein said first light guide and said first image guide are in communication with said second light guide and said second image guide respectively, via the receptacle and plug connectors when in an engaged position.

31. A light and image guiding system for an intubating laryngoscope comprising:

a two-stem receptacle connector, located in a handle, for terminating a first light guide and a first image guide;

a two-stem plug connector, located at a proximal end of a light and image guiding attachment, for terminating a second light guide and a second image guide;

wherein said two-stem plug connector is receivable in said two-stem receptacle connector and the first light guide and the first image guide are in communication with the second light guide and the second image guide respectively, via the receptacle and plug connectors when in an engaged position.