Importance

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Abstract

This application deals with the problem of injection of a therapeutic or procedural fluids into a vascular system and particularly into the arteries. Commonly, these materials will be washed out quickly due to the rush of the blood in the lumen of the vessel and this prevents the best outcome to be achieved. To prevent this problem the applicant introduces a series of catheters and sheaths that allow a resistance mean or a barrier mean to be created in front of the flow of the blood in the lumen of the vessel. So that the speed of the flow of the blood in the vessel will decrease and this prevents from the quick washout of the injected materials from the injected space. In the prototype model this unit the resistance mean is an inflatable balloon that is located on the body of the catheter and the inflation of that balloon will cause the resistance to build up. In order to be able to chose the area of the resistance mean as well as the type of the catheter that can be used with these units a new series of sheaths with resistance means on them are introduced in this application that allows different catheters to be used with them. In another model the balloon will be placed around or next to the catheter and it will cause the resistance to build up. Furthermore this application introduces an injection catheter which has a thermistor in its body and it allows the flow of the fluid to be done in the arterial system. The barriers or the resistance unit of these catheters will prevent the therapeutic or procedural materials that are injected into the area to leave the injected space quickly. Also importantly, the resistance can be used to build a relatively higher pressure in the injected space in order to inject the medication into the closed vessel more forcefully.

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First Claim