Method and apparatus to remove substances from vessels of the heart and other parts of the body to minimize or avoid renal or other harm or dysfunction
First Claim
1. An apparatus for occluding a coronary sinus vein and removing contrast from blood upstream of an occluded portion of said coronary sinus vein before permitting a remnant of said contrast to enter body circulatory systems via said blood, said apparatus comprising:
- a catheter having;
a balloon tip on one end for insertion into and occlusion of said vein, said balloon tip comprising a bend; and
a suction device for removing said contrast by suctioning through said catheter; and
a controller for starting and stopping said suction device at specific times;
said suction device comprising a syringe for suctioning said contrast through a lumen of said catheter that extends distal to a balloon of said balloon tip, wherein said controller comprises;
manual manipulation interface on a plunger of a syringe for beginning and ending suctioning, and visual means for monitoring said vein for determining a presence of said contrast in said vein prior to beginning or ending said suctioning.
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Accused Products
Abstract
To accomplish isolation and removal of a substance from a vasculature, a catheter is employed to occlude a vessel of the vasculature. The substance is thus isolated in the vasculature and can be removed. In this way, the substance is removed before entering other parts of the circulatory system. This method is applicable to removal of contrast from the coronary sinus shortly after injection of the coronary arteries with the contrast. The method substantially minimizes or avoids renal dysfunction caused by angiographic procedures in which contrast must be injected. Such angiographic procedures are often performed during intervention procedures. This method substantially prevents circulation of the contrast to the kidneys where it could otherwise cause renal dysfunction or failure. The apparatus for implementation of the method is also disclosed.
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Citations
45 Claims
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1. An apparatus for occluding a coronary sinus vein and removing contrast from blood upstream of an occluded portion of said coronary sinus vein before permitting a remnant of said contrast to enter body circulatory systems via said blood, said apparatus comprising:
- a catheter having;
a balloon tip on one end for insertion into and occlusion of said vein, said balloon tip comprising a bend; and
a suction device for removing said contrast by suctioning through said catheter; and
a controller for starting and stopping said suction device at specific times;
said suction device comprising a syringe for suctioning said contrast through a lumen of said catheter that extends distal to a balloon of said balloon tip, wherein said controller comprises;
manual manipulation interface on a plunger of a syringe for beginning and ending suctioning, and visual means for monitoring said vein for determining a presence of said contrast in said vein prior to beginning or ending said suctioning.
- a catheter having;
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2. An apparatus for occluding a coronary sinus vein and removing contrast from blood upstream of an occluded portion of said coronary sinus vein before permitting a remnant of said contrast to enter body circulatory systems via said blood, said apparatus comprising:
- a catheter having;
a balloon tip on one end for insertion into and occlusion of said vein, said balloon tip comprising a bend; and
a suction device for removing said contrast by suctioning through said catheter; and
a controller for starting and stopping said suction device at specific times;
wherein said catheter comprises a tip with an inflatable balloon thereon, said suction device comprises a pump for suctioning said contrast through a lumen of said catheter having an orifice distal to said balloon and said controller comprises;
a manual electrical switch for turning said pump on and off, and visual means for monitoring said vein for determining a presence of said contrast in said vein prior to turning said pump on and off.
- a catheter having;
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3. A method of isolating a substance in a vessel and a volume of a heart and of removing said substance in blood from said vessel and said volume of said heart during angiographic and coronary intervention procedures to lower an amount of said substance that is permitted to enter said heart and systemic circulation of the body, said method comprising:
- inserting a first catheter having a bend on a distal end through a natural via of said body to said vessel, wherein said first catheter has a means for occluding;
inserting a second catheter through another natural via of said body to a location upstream of said vessel;
injecting said substance into said location upstream of said vessel;
forming an occlusion in said vessel by said means for occluding of said first catheter;
suctioning said blood and said substance from said vessel upstream of said occlusion; and
removing said occlusion after a majority of said substance has been auctioned out of said vessel; and
wherein said first catheter is a balloon tipped catheter and said means for occluding comprises a balloon tip, and wherein said first catheter further comprises a first lumen connected to a first pump and a second lumen connected to a second pump, said first lumen having an orifice distal to said balloon and said second lumen being sealingly connected to said balloon, said first catheter being connected to a controller wherein;
said controller actuating at least one of a switch and a timer in said controller for coordinating at least one additional step in said method when a signal is received in said controller;
said signal is generated by manually actuating a switch button on said controller when a presence of said substance is seen in said vessel on a fluoroscopy screen. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- inserting a first catheter having a bend on a distal end through a natural via of said body to said vessel, wherein said first catheter has a means for occluding;
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21. A method of injecting a substance into and removing a substance from a blood vessel of a human body as a primary or a secondary procedure, wherein said substance stays in said vessel temporarily and is removed during said procedure to avoid harmful effects by said substance on said human body, said method comprising the steps of:
- inserting a first balloon tip catheter percutaneously into said vessel;
inserting a second catheter percutaneously into a volume in fluid communication with said vessel;
occluding said vessel by a means for occluding on an end of said first catheter;
injecting said substance in said volume for natural flow toward said vessel;
suctioning said substance in said volume and said vessel by a lumen in said first catheter through an orifice in said catheter distal to said means for occluding; and
coordinating the steps of the method by a controller connected to, said catheters;
wherein said substance comprises a contrast;
wherein the method further comprises imaging said volume and said vessel by angiography while said contrast is present in said volume and said vessel; and
wherein said method further comprises selectively repeating said steps of injecting and imaging for imaging from a variety angles and locations as a primary procedure for gathering information about an interior of at least one of said vessel and said volume. - View Dependent Claims (22, 23, 24, 25, 26)
- inserting a first balloon tip catheter percutaneously into said vessel;
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27. An apparatus for removing a quantity of an injected contrast from an anatomical vessel within the body of a mammalian patient, said apparatus comprising:
- a catheter having;
an occluder for occluding the vessel;
a suction device for removing the injected contrast from the vessel upstream of the occlusion created by the occluder; and
, a controller for starting and stopping said suction device at specific times said controller comprising manual manipulation of a syringe for beginning and ending suctioning and visual means for monitoring said vessel for determining a presence of said contrast in said vessel prior to beginning or ending said suctioning. - View Dependent Claims (28, 29, 30)
- a catheter having;
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31. A method of isolating and removing at least a portion of a quantity of radiographic contrast medium that has been injected into the vasculature of a human or veterinary patient, said method comprising the steps of:
- A) inserting a first catheter having an occluder into a vessel to be occluded;
B) inserting a second catheter to a location upstream of the occluder;
C) injecting contrast into the patient'"'"'s vasculature upstream of the occluder;
D) causing the occluder to occlude the vessel such that at least a portion of the injected contrast medium is retained upstream of the occluder;
E) suctioning and removing from the vasculature at least a portion of the contrast medium that is retained upstream of the occluder; and
F) causing the occluder to cease occlusion of said vessel;
wherein said first catheter further comprises a first conduit connected to a first pump and a second conduit connected to a second pump, said first conduit having a lumen at an end of said tip distal to said balloon and said second conduit being sealingly connected to said balloon, said first catheter being connected to a controller, at least one device in said controller being operative to coordinate other steps in said method when a signal is received in said controller;
said at least one device being selected from the group consisting of an alarm, a switch and a timer; and
said signal being generated by manually actuating the controller when the presence of a sufficient amount of contrast is viewed radiographically upstream of the occluder. - View Dependent Claims (32, 33)
- A) inserting a first catheter having an occluder into a vessel to be occluded;
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34. An apparatus for occluding a coronary sinus vein and removing contrast from blood upstream of an occluded portion of said coronary sinus vein before permitting a remnant of said contrast to enter body circulatory systems via said blood, said apparatus comprising:
- a catheter having;
a balloon tip on one end for insertion into and occlusion of said vein, said balloon tip comprising a bend; and
a suction device comprising a pump for removing said contrast by suctioning through said catheter; and
a controller for starting and stopping said suction device at specific times;
wherein said controller comprises a manual electrical switch for turning said pump on and off, and visual means for monitoring said vein for determining a presence of said contrast in said vein prior to turning said pump on and off. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
- a catheter having;
Specification