Lamp bypass switch

• US 10,405,414 B2
• Filed: 05/17/2017
• Issued: 09/03/2019
• Est. Priority Date: 02/02/2015
• Status: Active Grant

• Current Assignee: Amico Clinical Solutions Corporation (Amico Corporation)
• Original Assignee: Amico Clinical Solutions Corporation (Amico Corporation)
• Inventors: Benson, Wayne, Chandan, Varun
• Primary Examiner(s): Owens, Douglas W
• Assistant Examiner(s): Chan, Wei
• Application Number:
  US15/597,583
• Publication Number:
  US 20170251543A1
• Time in Patent Office: Days
• Field of Search: 315291, 315294, 315292, 315312, 315297, 315152, 315 86, 315112
• CPC Class Codes: A61B 90/30 Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• CPC Class Codes: A61B 90/35 Supports therefor
• CPC Class Codes: F21V 21/26 Pivoted arms
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21W 2131/20 Lighting for medical use
• CPC Class Codes: F21W 2131/205 for operating theatres
• CPC Class Codes: F21Y 2113/00 Combination of light sources
• CPC Class Codes: H05B 47/17 Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
• CPC Class Codes: H05B 47/20 Responsive to malfunctions or to light source life; for protection

Abstract

Aspects of the present application relate to a bypass switch for a lamp, such as a surgical or diagnostic lamp. When activated, the bypass switch may act to allow electric power to bypass elements of a control board so that the electric power is provided to the plurality of lamp elements.

Claims

1. A lamp assembly comprising:

a plurality of light sources;

a source of electrical power;

a source of control signals;

a control element including an normal drive circuitry and an emergency drive circuitry, the normal drive circuitry configured to provide, in accordance with first control signals received from the source of control signals, the electrical power, received from the source of electrical power, to the light sources via light source connectors, the normal drive circuitry including a potentiometer associated with each of the light source connectors; and

a bypass switch configured to, responsive to activation, transmit an override signal to the control element;

wherein the control element is configured to;

receive, from the bypass switch, the override signal;

receive, from the source of control signals, second control signals; and

receive, from the source of electrical power, further electrical power; and

,

wherein the emergency drive circuitry is configured to, responsive to receiving the override signal, provide the further electrical power to the light sources via the light source connectors without regard to the second control signals.

2. The lamp assembly of claim 1 wherein the source of control signals is configured to:

generate, based upon user manipulation, the first control signals; and

transmit, to the control element, the first control signals.

3. The lamp assembly of claim 1 wherein the first control signals comprise pulse width modulation signals.

4. The lamp assembly of claim 1 further comprising a light ring wherein the bypass switch is configured to, responsive to activation, provide electrical power to the light ring.

5. The lamp assembly of claim 1 wherein the bypass switch further comprises a button for selective activation of the bypass switch.

6. The lamp assembly of claim 1 further comprising a lamp head, wherein the light sources are mounted within the lamp head.

7. The lamp assembly of claim 6 further comprising a swing arm configured to support the lamp head.

8. The lamp assembly of claim 7 wherein the button is mounted to the swing arm.

9. The lamp assembly of claim 8 wherein a light ring surrounds the button.