Electronic anesthesia delivery apparatus

• US 8,567,392 B2
• Filed: 10/07/2010
• Issued: 10/29/2013
• Est. Priority Date: 01/07/2005
• Status: Active Grant

• Current Assignee: Vetland Medical Sales And Services, LLC
• Original Assignee: Vetland Medical Sales And Services, LLC
• Inventors: Rumph, Brad, Hoehler, Tom, Lerman, Mark
• Primary Examiner(s): DOUGLAS, STEVEN O
• Application Number:
  US12/900,111
• Publication Number:
  US 20110056491A1
• Time in Patent Office: 1,118 Days
• Field of Search: 128/203.12, 12820418-20518, 128/203.14, 604/65, 604/890.1, 345/173
• US Class Current: 128/203.12
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0078 Breathing bags
• CPC Class Codes: A61M 16/009 Removing used or expired gases or anaesthetic vapours filtering, sterilising or disinfecting the exhaust air in drainage systems A61M1/784; bacterial filters in the expiratory path A61M16/1065
• CPC Class Codes: A61M 16/0093 by adsorption, absorption or filtration
• 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 16/1015 using a gas flush valve, e.g. oxygen flush valve
• CPC Class Codes: A61M 16/18 Vaporising devices for anaesthetic preparations
• CPC Class Codes: A61M 16/202 electrically actuated
• CPC Class Codes: A61M 16/209 Relief valves
• CPC Class Codes: A61M 16/22 Carbon dioxide-absorbing devices ; Other means for removing carbon dioxidecartridges with absorbing substances for respiratory apparatus A62B19/00
• CPC Class Codes: A61M 2016/0039 in the inspiratory circuit
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: A61M 2209/084 Supporting bases, stands for equipment
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 for local operation

Abstract

An electronic anesthesia delivery apparatus for mixing a carrier gas and first and second anesthetic agents comprises a chassis having an electronic vaporizer, the vaporizer having a first anesthetic chamber and a second anesthetic chamber retaining the first anesthetic agent and the second anesthetic agent, a carrier gas input port in flow communication with the first anesthetic chamber and the second anesthetic chamber, a precision orifice and an electronic control valve corresponding to each of the chambers being downstream of the gas input port, each of the chambers having a conduit in flow communication with the carrier gas input port, each of the conduits extending into each of the chambers below an upper level of anesthetic agent, wherein the carrier gas passes through a porous diffuser near an end of the conduit and bubbles through the anesthetic agent, the chamber further comprising an anesthetic gas outlet port, an electronic touchscreen display for controlling carrier gas flow rate to the first anesthetic chamber and the second anesthetic chamber, the electronic touchscreen display further allowing control of concentrations of the anesthetic agent in an anesthesia to a patient by intermittently opening and closing of the electronic control valve, a circuit board having an input/output portion, the circuit board in electronic communication with the electronic touchscreen display, the input/output portion receiving temperature of the anesthetic agent, the electronic anesthesia delivery apparatus allowing use of a first anesthetic agent while a second anesthetic agent is one of either replaced or substituted in the second chamber.

Claims

1. An electronic anesthesia delivery apparatus for mixing a carrier gas and first and second anesthetic agents comprising:

a chassis having an electronic vaporizer, said vaporizer having a first anesthetic chamber retaining said first anesthetic agent and a second anesthetic chamber retaining said second anesthetic agent;

a carrier gas input port in flow communication with said first anesthetic chamber and said second anesthetic chamber, a precision orifice and an electronic control valve corresponding to each of said chambers being downstream of said gas input port, each of said chambers having a conduit in flow communication with said carrier gas input port, each of said conduits extending into each of said chambers below an upper level of anesthetic agent, wherein said carrier gas passes through a porous diffuser near an end of said conduit and bubbles through said anesthetic agent;

said chamber further comprising an anesthetic gas outlet port;

an electronic touchscreen display for controlling carrier gas flow rate to said first anesthetic chamber and said second anesthetic chamber, said electronic touchscreen display further allowing control of concentrations of said anesthetic agent in an anesthesia to a patient by intermittently opening and closing of said electronic control valve;

a circuit board having an input/output portion, said circuit board in electronic communication with said electronic touchscreen display, said input/output portion receiving temperature of said anesthetic agent;

said electronic anesthesia delivery apparatus allowing use of a first anesthetic agent while a second anesthetic agent is one of either replaced or substituted in said second chamber.

2. The electronic anesthesia delivery apparatus of claim 1 further comprising a carrier gas line which bypasses said first and second anesthetic chambers.

3. The electronic anesthesia delivery apparatus of claim 2, said carrier gas line in flow communication with said electronic vaporizer downstream of said first and second chambers.

4. The electronic anesthesia delivery apparatus of claim 1 wherein said apparatus allows delivery of said anesthetic agents to said patient.

5. The electronic anesthesia delivery apparatus of claim 4 wherein said delivery of said agents occurs independently.

6. The electronic anesthesia delivery apparatus of claim 4 wherein said delivery of said agents occurs simultaneously.

7. The electronic anesthesia delivery apparatus of claim 1 further comprising a flow sensor in flow communication with said carrier gas input port.

8. The electronic anesthesia delivery apparatus of claim 7 said flow sensor sensing pressure differentials.

18. The electronic anesthesia delivery apparatus of claim 1 further comprising a carbon dioxide monitor.

9. An electronic anesthesia delivery apparatus, comprising:

a chassis having an anesthetic vaporizer including first and second anesthetic chambers and a touchscreen graphics display comprising controls for said anesthetic vaporizer;

a circuit board including an input/output portion, said touchscreen graphics display in electronic communications with said circuit board, said circuit board controlling rate of vaporization and concentration of a first and second anesthetic agent disposed in said first and second anesthetic chambers, respectively;

at least one electronically controlled valve in fluid communication with each of said first and second anesthetic chambers, said electronically controlled valve in electronic communication with said input/output portion of said circuit board;

each of said first anesthetic chamber and said second anesthetic chamber in flow communication with a carrier gas input port, each of said first anesthetic chamber and said second anesthetic chamber having an outlet port;

said carrier gas input port in fluid communication with an orifice and said electronically controlled valve;

at least one inlet tube in flow communication with said carrier gas input port, each of said at least one inlet tube extending into each of said first and second chambers;

wherein either of said first and second anesthetic chambers is refillable while the other of said first and second anesthetic chambers is in use.

10. The electronic anesthesia delivery apparatus of claim 9 further comprising a pulse oximetry sensor in electronic communication with said circuit board.

11. The electronic anesthesia delivery apparatus of claim 9 further comprising an electrocardiogram heart wave form.

12. The electronic anesthesia delivery apparatus of claim 9 further comprising a remote control for making operating adjustments.

13. The electronic anesthesia delivery apparatus of claim 9 further comprising an input for a flash memory card.

14. The electronic anesthesia delivery apparatus of claim 9 further comprising a USB port.

19. The electronic anesthesia delivery apparatus of claim 9 further comprising a carbon dioxide monitor.

15. An electronic anesthesia delivery apparatus, comprising:

a chassis having a carrier gas input port;

a first anesthetic chamber and a second anesthetic chamber in fluid communication with said carrier gas input port, said first and second anesthetic chambers including an outlet port;

a precision orifice and an electronic control valve in fluid communication with said carrier gas input port and said first and second anesthetic chambers;

a circuit board including an input/output portion, said electronic control valve in electronic communication with said circuit board, said circuit board controlling said electronic control valve to vary rate of vaporization and concentration of a first anesthetic agent and a second anesthetic agent;

a temperature sensor signal in electronic communication with said circuit board, said temperature sensor signal indicating a temperature of said first anesthetic agent and said second anesthetic agent;

a touchscreen graphics display in electronic communication with said circuit board;

each anesthetic chamber having a conduit therein and extending to an elevation beneath said anesthetic agent and having at least one diffuser for bubbling carrier gas through said anesthetic agent.

16. The electronic anesthesia delivery apparatus of claim 15 further comprising a carbon dioxide monitor.

17. The electronic anesthesia delivery apparatus of claim 15 further comprising a network connector.