Transmyocardial Jet Perfusion Device
OwnerEric William Braderinventor
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Abstract
The invention pertains to hardware and methods for direct injection, into the left ventricle of the heart of a patient or animal in cardiac arrest or in incipient cardiac arrest—ordinarily using a 14-18 gauge cannula typically equipped with a retractable trocar—of an adequate amount of chilled saline or cryprotective solution to create flow of chilled blood through the two carotid arteries, the two vertebral arteries, and the brain, to cool the brain or other vital organs. Generally, enough saline or cryoprotective solution is injected under high enough pressure to create a 30% baseline common carotid blood flow. A left ventricle bypass system is included, to allow selective relief of excess pressure in the left ventricle should such pressure relief be necessary.
Claims5
A percutaneous transmyocardial jet perfusion device, comprising:
- a cooperating trocar and a cannula device for the perforation and cannulation of the left ventricle of the heart of a patient or animal in need of such treatment, wherein said cooperating trocar is initially secured within a stopcock;
- a fluid reservoir charged with a quantity of fluid, wherein said quantity of fluid is maintained in a chilled state;
- a portable pump;
- a quantity of fluid charged to said fluid reservoir and a testing syringe, wherein all cooperating elements portions of the cooperating trocar and cannula device are housed within a sterile closed system incorporating a flexible sheath in which said cooperating trocar can advance and retract, and further wherein a separate cannula with a flow controller is provided for use as needed to vent the left ventricle to remove excess fluid, with said separate cannula's being connectable at one end to a fluid inlet adjacent said portable pump, and wherein said separate cannula is also housed within said sterile closed system.
Dependencies are inferred from the claim text.