Anesthesia machine with head worn display

• US 6,415,792 B1
• Filed: 09/05/1995
• Issued: 07/09/2002
• Est. Priority Date: 04/11/1995
• Status: Expired due to Fees

• Current Assignee: Schoolman Scientific Corporation
• Original Assignee: Schoolman Scientific Corporation
• Inventors: Schoolman, Arnold
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US08/523,535
• Time in Patent Office: 2,499 Days
• Field of Search: 345/8, 345/9, 364/413.02, 364/413.03, 128/671, 128/202.22, 128/203.12, 128/203.14, 128/204.21, 128/204.23, 128/205.23
• US Class Current: 128/204.23
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/024 including calculation means, e.g. using a processor
• CPC Class Codes: A61M 16/0841 for sampling
• CPC Class Codes: A61M 16/0858 Pressure sampling ports
• CPC Class Codes: A61M 2016/0033 electrical
• CPC Class Codes: A61M 2205/3561 local, e.g. within room or hospital
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/507 Head Mounted Displays [HMD]
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: H04N 13/10 Processing, recording or transmission of stereoscopic or multi-view image signals
• CPC Class Codes: H04N 13/194 Transmission of image signals
• CPC Class Codes: H04N 13/286 having separate monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/324 Colour aspects
• CPC Class Codes: H04N 13/344 with head-mounted left-right displays
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof

Abstract

An anesthesia machine with a head worn display includes a gas delivery system and a patient monitor system cooperating in such a manner as to monitor the anesthesia and vital parameters of a patient in surgery. The gas delivery system supplies oxygen or a gaseous anesthetic at a controlled pressure and flow rate as monitored by gas delivery sensors. The gas delivery sensors and patient vital parameter sensors are interfaced to a monitor processor and the measured values of the sensors can be displayed on a head worn display device having stereoscopic capabilities. The monitor processor includes communication ports for selectively monitoring the sensors of a similar anesthesia machine remotely positioned and for downloading patient medical records from a hospital medical records computer. A wireless communication link can be employed between the monitor processor and the head worn display to facilitate movement of an anesthesiologist about an operating room.

Claims

1. An anesthesia apparatus comprising:

(a) a gas delivery assembly adapted for delivering a selected gas to a patient;

(b) a gas delivery control connected to and cooperating with said gas delivery assembly to control a flow volume of said selected gas to a patient;

(c) a gas delivery sensor cooperating with said gas delivery assembly and sensing a gas parameter indicative of said flow volume of said selected gas and generating a gas parameter signal representing a value of said gas parameter;

(d) a patient monitor assembly including at least one patient vital parameter sensor sensing a selected patient vital parameter and generating a patient parameter signal representing a value of said selected patient vital parameter;

(e) a digital patient monitor processor having said gas delivery sensor and said patient parameter sensor interfaced thereto, said digital patient monitor processor executing a program to process data and generating alphanumeric and graphic data;

(f) a display controller interfaced to said digital patient monitor processor and generating a display signal representing alphanumeric and graphic data generated by said digital patient monitor processor including indicia representing said gas parameter and said patient vital parameter; and

(g) a head worn display device interfaced to said display controller, receiving said display signal, and displaying said alphanumeric and graphic data.

2. An apparatus as set forth in claim 1 and including:

(a) a keyboard interfaced to said digital patient monitor processor.

3. An apparatus as set forth in claim 1 and including:

(a) a communication port interfaced to said digital Patient monitor processor; and

(b) said communication port being interfaced to a patient medical records computer storing patient medical records.

4. An apparatus as set forth in claim 1 and including:

(a) a communication port interfaced to said digital patient monitor processor;

(b) said communication port being selectively activated to interface said digital patient monitor processor to a remote processor of a remote anesthesia machine, said remote processor outputting a remote display signal; and

(c) a display source selector interfaced to said digital patient monitor processor and enabling selection between said display signal from said digital patient monitor processor and said remote display signal from said remote processor.

5. An apparatus as set forth in claim 1 and including:

(a) a plurality of patient vital parameter sensors, each sensor sensing an associated patient vital parameter, being interfaced to said digital patient monitor processor, and selectively causing display of indicia on said head worn display device of a value of the vital parameter associated with said sensor.

6. An apparatus as set forth in claim 1 and including:

(a) a conventional video display device enabling viewing of images displayed thereon by multiple personnel, said conventional video display device being interfaced to said display controller.

7. An apparatus as set forth in claim 1 wherein:

(a) said display controller outputs a stereoscopic display signal representing stereoscopic graphics; and

(b) said head worn display device is stereoscopic.