Laser-protection surgical drape
AssigneeJohnson & Johnson Medical, Inc.
InventorsDavid Butterworth, Joseph Salvatore
Life of this patent
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Abstract
A multi-layer article to protect a patient from laser radiation during surgery comprises two metallic layers sandwiching a flame-resistant, radiation absorbing layer. The facing surfaces of the metallic layers, adjoining the middle layer, are reflective. The top surface of the upper metallic layer has a non-reflective, flame-resistant coating. The radiation-absorbing layer is preferably a hydrogel. The lower metallic layer is preferably thicker than the upper layer and/or is of a metal that has a higher melting temperature than that of the upper layer. The article protects the patient by harmlessly dissipating the energy in a misdirected laser beam for a period of time that will permit a healthcare worker to take corrective action.
Claims20
A multi-layer article to provide protection from laser radiation during medical procedures, comprising:
- a) a first metallic layer having a top reflective surface to be placed proximal to a source of laser radiation and a bottom surface to be placed distal from the laser source,
- b) a flame-resistant, radiation-absorbing layer having a bottom surface adjacent to the top surface of the first metallic layer, and
- c) a second metallic layer having
- i) a reflective bottom surface adjacent to the top surface of the radiation-absorbing layer and
- ii) a top surface having a non-reflective, flame-resistant coating in which the first metallic layer has a thickness that is greater than the thickness of the second metallic layer.
A multi-layer article to provide protection from laser radiation during medical procedures, comprising:
- a) a first metallic layer having a top reflective surface to be placed proximal to a source of laser radiation and a bottom surface to be placed distal from the laser source,
- b) a flame-resistant, radiation-absorbing layer having a bottom surface adjacent to the top surface of the first metallic layer, and
- c) a second metallic layer having
- i) a reflective bottom surface adjacent to the top surface of the radiation-absorbing layer and
- ii) a top surface having a non-reflective, flame-resistant coating in which the first metallic layer has a melting temperature that is higher than that of the second metallic layer.
A multi-layer article to provide protection from laser radiation during medical procedures, comprising:
- a) a first metallic layer having a top reflective surface to be placed proximal to a source of laser radiation and a bottom surface to be placed distal from the laser source,
- b) a flame-resistant, radiation-absorbing layer having a bottom surface adjacent to the top surface of the first metallic layer, and
- c) a second metallic layer having
- i) a reflective bottom surface adjacent to the top surface of the radiation-absorbing layer and
- ii) a top surface having a non-reflective, flame-resistant coating in which the non-reflective, flame-resistant coating on the top surface of the second metallic layer has a vaporization temperature higher than the melting temperature of the second metallic layer.
Dependencies are inferred from the claim text.