Portable video laryngoscope

• US 6,652,453 B2
• Filed: 09/10/2001
• Issued: 11/25/2003
• Est. Priority Date: 03/03/1999
• Status: Expired due to Fees

• Current Assignee: Susan V. Smith, Vincent A. Smith
• Original Assignee: Susan V. Smith, Vincent A. Smith
• Inventors: Smith, Vincent A., Smith, Susan V.
• Primary Examiner(s): Robert, Eduardo C.
• Assistant Examiner(s): Comstock, David C
• Application Number:
  US09/954,258
• Publication Number:
  US 20020022769A1
• Time in Patent Office: 806 Days
• Field of Search: 600/185, 600/187, 600/188, 600/194, 600/196, 600/197, 600/199, 600/190, 600/104, 600/113, 600/114, 600/120, 600/129, 600/136, 606/106
• US Class Current: 600/188
• CPC Class Codes: A61B 1/00052 positioned at proximal end of the endoscope body
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 1/267 for the respiratory tract, e.g. laryngoscopes, bronchoscopes

Abstract

A laryngoscope for use in intubating a patient'"'"'s trachea, in routine and emergency situations. The laryngoscope has a camera mounted in the vicinity of a distal end of its probe to observe the patient'"'"'s trachea opening and transmit a signal to a display on the handle. The distal end of the probe also includes ovoid, generally C-shaped gripping means, a pair of elongated grasping lips on the gripping means, and an internal clamping assembly for controlling the gripping means.

Claims

1. A laryngoscope for aiding in the examination of a patient by an observer relying entirely upon machine generated data to derive medical conclusions, comprising:

a probe and a handle, said probe having a proximal end connected to said handle and an articulating, adjustable distal end projecting therefrom, said handle including a distal end connected to said proximal end of said end probe, the distal end of the probe including generally ovoid, C-shaped gripping means, the gripping means including a pair of elongated grasping lips and an internal clamping assembly for controlling the gripping means;

information gathering means including digital camera means mounted to said distal end of said probe to generate digital machine data and display means adjustably and releaseably mounted on said proximal end of said handle and operationally connected to said digital camera means whereby a 2-D visual display is provided a human observer, said display means defining a first working position to permit line of sight insertion of said probe into the throat cavity of a patient and a second working position in which said line of sight is blocked, so said observer relies entirely upon machine generated data for to derive medical conclusions.

2. The laryngoscope of claim 1 with the addition further comprising battery power supply means for powering said machine data generating means.

3. The laryngoscope of claim 2 in which said handle has outer side surfaces shaped into a pistol grip to be grasped by one hand of the human observer and including housed control means powered by said battery power supply means.

4. The laryngoscope of claim 3 in which said control means includes a separate valve means for connecting said distal end of said probe alternately to a vacuum source and an oxygen source to enhance the examination of said patient.

5. The laryngoscope of claim 3 in which said data generating means includes light means located in the vicinity of said distal end of said probe connected to said battery power supply means through said control means for illumination purposes and an D/A converter located in said display means also connected to said battery power supply means for converting digital signals generated by said camera means to a 2-D visual display at said display means.

6. The laryngoscope of claim 3 in which said display means is a rectangularly shaped LCD screen capable of pivoting along an axis point to provide visual display of the operating field to the user in said first and second working positions and electrically connected to said battery power supply means through said control means.

7. A method of intubating the trachea of a patient by an intubator using an incubating instrument and a laryngoscope, the method comprising steps as follows:

providing the laryngoscope with a handle and a probe, the probe having a proximal end connected to the handle and a distal end projecting laterally therefrom;

inserting the probe into the patient'"'"'s mouth while grasping the laryngoscope by the handle using a first hand of the intubator for steady and constant lifting and moving to one side the patient'"'"'s tongue, with the second hand of the user manipulating the flexion control wheel to acquire visual capture of the patient'"'"'s tracheal opening and other oral internal structures to view;

providing illuminating means for illuminating the trachea opening and other oral internal structures;

providing controls to manipulate the articulating end of the probe to secure an adequate view of the operating field;

providing an oxygen delivery means to the distal end of the probe;

providing camera means mounted on a blade of the laryngoscope in the vicinity of the distal end of the blade so that it observes a field of view that includes the patient'"'"'s trachea opening and other oral internal structures;

having the camera means operatively connected to display means for viewing the field of view thereon;

introducing oxygen gas to the area of the trachea through the oxygen delivery means;

inserting the intubating instrument into the mouth of a patient using the controllable grasping means to guide and release the ET tube, while a second hand of the intubator pushes in the intubating instrument for insertion of an endotracheal tube into the patient'"'"'s tracheal opening; and

positioning the display means on the handle so that while the intubator inserts and manipulates the intubating instrument into the patient'"'"'s trachea the intubator observes the trachea opening and other oral internal structures of the patient on the display means unaffected by the manipulating of the intubating instrument.

8. The method of claim 7, further providing suction means on demand for the removal of secretions, noxious substances and foreign bodies.

9. The method of claim 8, further providing sample means to obtain biopsies and remove polyps with endoscopic tools through the oxygen delivery means.