MULTI-LUMEN CANNULAE
First Claim
Patent Images
1. A multi-lumen cannula, comprising:
- an elongated body having a distal end portion for placement in a biological lumen of a patient and a proximal end portion for placement outside the patient;
a first balloon and a second balloon connected to an exterior surface of the elongated body in the distal end portion, the first balloon and the second balloon configured to fluidly isolate a portion of the biological lumen between the first and second balloons when inflated;
a central lumen extending through the elongated body from the distal end portion to the proximal end portion;
distal fluid ports and proximal fluid ports in the distal end portion of the elongated body, at least some of which are fluidly coupled to the central lumen for conducting fluid between the biological lumen of the patient and the central lumen, wherein the distal fluid ports are distal to the first and second balloons and the proximal fluid ports are proximal to the first and second balloons;
at least one balloon lumen arranged parallel to the central lumen and located within an outer perimeter of the elongated body;
at least one balloon port that fluidly couples the at least one balloon sidewall lumen to the first balloon, the second balloon, or both, for inflation and deflation of the first balloon, the second balloon, or both;
at least one conduction sidewall lumen arranged parallel to the central lumen and located within the outer perimeter of the elongated body; and
one or more intermediate fluid ports located in an intermediate region of the distal end portion of the elongated body between the first and second balloons, and fluidly coupled to the at least one conduction sidewall lumen.
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Accused Products
Abstract
The present disclosure concerns embodiments of multi-lumen cannulae that can be used in various different medical procedures. The multi-lumen cannulae can comprise an elongated body comprising multiple different ports that connect to the various different sidewall lumens contained within the elongated body. The multi-lumen cannulae can also comprise a central lumen that extends through the entire elongated body and can be fluidly connected to the various different sidewall lumens. The multi-lumen cannulae can further comprise two balloons on the exterior of the elongated body, which can be used to isolate the right atrium of a patient'"'"'s heart.
26 Citations
28 Claims
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1. A multi-lumen cannula, comprising:
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an elongated body having a distal end portion for placement in a biological lumen of a patient and a proximal end portion for placement outside the patient; a first balloon and a second balloon connected to an exterior surface of the elongated body in the distal end portion, the first balloon and the second balloon configured to fluidly isolate a portion of the biological lumen between the first and second balloons when inflated; a central lumen extending through the elongated body from the distal end portion to the proximal end portion; distal fluid ports and proximal fluid ports in the distal end portion of the elongated body, at least some of which are fluidly coupled to the central lumen for conducting fluid between the biological lumen of the patient and the central lumen, wherein the distal fluid ports are distal to the first and second balloons and the proximal fluid ports are proximal to the first and second balloons; at least one balloon lumen arranged parallel to the central lumen and located within an outer perimeter of the elongated body; at least one balloon port that fluidly couples the at least one balloon sidewall lumen to the first balloon, the second balloon, or both, for inflation and deflation of the first balloon, the second balloon, or both; at least one conduction sidewall lumen arranged parallel to the central lumen and located within the outer perimeter of the elongated body; and one or more intermediate fluid ports located in an intermediate region of the distal end portion of the elongated body between the first and second balloons, and fluidly coupled to the at least one conduction sidewall lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-lumen cannula, comprising:
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an elongated body having a distal end portion for placement in a patient'"'"'s vena cava and a proximal end portion for placement outside the patient; a first balloon and a second balloon connected to an exterior surface of the elongated body in the distal end portion, the first balloon for placement in the patient'"'"'s inferior vena cava and the second balloon for placement in the patient'"'"'s superior vena cava, the first balloon and the second balloon configured to fluidly isolate the patient'"'"'s right atrium from the inferior vena cava and the superior vena cava when inflated; a vacuum lumen extending through the elongated body from the distal end portion to the proximal end portion and fluidly coupled to one or more distal fluid ports and one or more proximal fluid ports in the distal end portion for conducting blood from the patient'"'"'s vena cava; and two balloon lumens fluidly coupled to at least two balloon ports and arranged parallel to the vacuum lumen within the elongated body, wherein one of the balloon ports fluidly couples one of the balloon lumens to the first balloon and another of the balloon ports fluidly couples another of the balloon lumens to the second balloon for inflation and deflation of the first balloon and the second balloon. - View Dependent Claims (15, 16)
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17. A method, comprising:
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introducing a multi-lumen cannula into the vena cava of a patient; inflating a first balloon of the cannula within the inferior vena cava and a second balloon of the cannula within the superior vena cava to fluidly isolate the right atrium of the patient from the inferior vena cava or superior vena cava; draining blood from the patent'"'"'s inferior vena cava and superior vena cava through at least one distal fluid port in the cannula located distal to the first and second balloons and at least one proximal fluid port in the cannula located proximal to the first and second balloons; and conducting a fluid to or from the right atrium through at least one intermediate fluid port in the cannula located between the first balloon and the second balloon. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification