Medical devices for clearing a surgical site
First Claim
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1. A single-phase surgical blower for clearing unwanted debris from a surgical site during the anastomosis on coronary arteries while the heart continues to beat without generating additional debris and without desiccating tissue at the surgical site comprising:
- a source of a single-phase wash gas;
a regulator for controlling a flow of the single-phase wash gas;
a filter for removing unwanted particles from the wash gas;
a nozzle for delivery of the single-phase wash gas to the surgical site, said nozzle diverting the single-phase was gas outward to maintain an isothermal flow of wash gas to the surgical site; and
a wash gas conditioning housing located in fluid communication with the source of the wash gas, said wash gas conditioning housing including a heater for elevating a temperature of the wash gas to a tissue friendly level, a hydrophilic media and a stagnant source of vaporizable liquid located in a hydrophilic media where the vaporizable liquid and the wash gas linger as the vaporizable liquid evaporates and hydrates the wash gas while inhibiting or preventing entrainment of the vaporizable liquid into the wash gas to bring the wash gas to a conditioned gaseous single-phase state whereby directing a stream of the conditioned single phase wash gas at the surgical site blows away unwanted debris from the surgical site without liquid droplets desiccating tissue at the surgical site.
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Abstract
An apparatus and method for clearing of a surgical site during the performance of a medical procedure where a single phase wash fluid, which has been conditioned, is directed at the surgical site to inhibit or prevent harm to the body tissue as unwanted debris is blown away from the surgical site thereby permitting a surgeon to safely perform a medical procedure without the presence of unwanted liquids or unwanted debris at the surgical site.
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Citations
21 Claims
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1. A single-phase surgical blower for clearing unwanted debris from a surgical site during the anastomosis on coronary arteries while the heart continues to beat without generating additional debris and without desiccating tissue at the surgical site comprising:
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a source of a single-phase wash gas; a regulator for controlling a flow of the single-phase wash gas; a filter for removing unwanted particles from the wash gas; a nozzle for delivery of the single-phase wash gas to the surgical site, said nozzle diverting the single-phase was gas outward to maintain an isothermal flow of wash gas to the surgical site; and a wash gas conditioning housing located in fluid communication with the source of the wash gas, said wash gas conditioning housing including a heater for elevating a temperature of the wash gas to a tissue friendly level, a hydrophilic media and a stagnant source of vaporizable liquid located in a hydrophilic media where the vaporizable liquid and the wash gas linger as the vaporizable liquid evaporates and hydrates the wash gas while inhibiting or preventing entrainment of the vaporizable liquid into the wash gas to bring the wash gas to a conditioned gaseous single-phase state whereby directing a stream of the conditioned single phase wash gas at the surgical site blows away unwanted debris from the surgical site without liquid droplets desiccating tissue at the surgical site. - View Dependent Claims (2, 3, 4, 5)
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6. A single-phase surgical blower for clearing an anastomosis site comprising:
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a wash gas conditioning housing having a plenum chamber containing a hydrophilic member containing a stagnate source of water in a gaseous state within the hydrophilic member for hydrating a wash gas by allowing the wash gas and the water in the gaseous state to linger in the presence of each other to humidify the wash gas to form a single-phase conditioned wash gas while inhibiting or preventing entrainment of liquid droplets therein; an inlet for connecting the wash gas conditioning housing to a source of a single-phase wash gas; and a blowpipe in fluid communication with said gas conditioning housing for directing a stream of the single-phase conditioned wash gas outward to maintain an isothermal flow of the single-phase conditioned wash gas at a surgical site to remove debris from the surgical site without generating additional debris and without desiccating tissue at the surgical site. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method of on-the-go enhancing visualization at an anastomosis site as blood is pumped through arteries in a patient by removing unwanted debris and without generating unwanted debris at the anastomosis site during a medical suturing procedure of a blood vessel and without desiccation of the blood vessel at the anastomosis site comprising;
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directing a single-phase wash gas into an inlet of a plenum chamber of a wash gas conditioning housing; conditioning the single-phase wash gas by heating the single-phase wash gas in the plenum chamber to a tissue friendly temperature while increasing the relative humidity thereof by vaporizing a liquid in the presence of the wash gas and allowing the vaporized liquid and the wash gas to linger and mix in the presence of each other as the wash gas is humidified by the vaporized liquid to form a single conditioned wash gas stream; directing the single conditioned wash gas stream to an outlet of the plenum chamber of the gas wash conditioning housing; and blowing the single conditioned wash gas stream outward to maintain an isothermal flow of the wash gas at the anastomosis site to remove unwanted debris from the anastomosis site without adversely impacting body tissue at the anastomosis site. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification