Apparatus and methods for the measurement of cardiac output
First Claim
1. A medical device comprising:
- a tube having a proximal portion and a distal portion;
an inflatable cuff connected to the distal portion of said tube; and
a plurality of sense electrodes, each of said sense electrodes comprising,an electrode patch joined to said inflatable cuff,an electrode runner extending a length in a proximal-distal orientation from said electrode patch, along said inflatable cuff, and along said distal portion of said tube, said electrode runner being joined along the length to said inflatable cuff and said tube,a polymeric underlayer applied on the inflatable cuff and the tube, the polymeric underlayer separating said electrode patch from said inflatable cuff and separating said electrode runner from said inflatable cuff and said tube, anda polymeric overlayer applied over the length of said electronic runner and applied over a periphery of said electrode patch,wherein said electrode runner, said polymeric underlayer, and said polymeric overlayer being in a sandwich format with said polymeric underlayer being on the bottom and closest to said tube, said polymeric overlayer being on the top and farthest from the tube, and said electrode runner being between said polymeric underlayer and said polymeric overlayer.
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Accused Products
Abstract
The current invention provides an endotracheal tube fabricated with an array of electrodes disposed on an inflatable cuff on the tube. The array of electrodes includes multiple sense electrodes and a current electrode. The array of electrodes on the inflatable cuff is applied using a positive displacement dispensing system, such as a MicroPen®. A ground electrode is disposed on the tube approximately midway between the inflatable cuff and the midpoint of the endotracheal tube. The endotracheal tube is partially inserted into a mammalian subject'"'"'s airway such that when the inflatable cuff is inflated, thereby fixing the tube in position, the array of electrodes is brought into close contact with the tracheal mucosa in relative proximity to the aorta. The endotracheal tube is useful in the measurement of cardiac parameters such as cardiac output.
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Citations
14 Claims
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1. A medical device comprising:
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a tube having a proximal portion and a distal portion; an inflatable cuff connected to the distal portion of said tube; and a plurality of sense electrodes, each of said sense electrodes comprising, an electrode patch joined to said inflatable cuff, an electrode runner extending a length in a proximal-distal orientation from said electrode patch, along said inflatable cuff, and along said distal portion of said tube, said electrode runner being joined along the length to said inflatable cuff and said tube, a polymeric underlayer applied on the inflatable cuff and the tube, the polymeric underlayer separating said electrode patch from said inflatable cuff and separating said electrode runner from said inflatable cuff and said tube, and a polymeric overlayer applied over the length of said electronic runner and applied over a periphery of said electrode patch, wherein said electrode runner, said polymeric underlayer, and said polymeric overlayer being in a sandwich format with said polymeric underlayer being on the bottom and closest to said tube, said polymeric overlayer being on the top and farthest from the tube, and said electrode runner being between said polymeric underlayer and said polymeric overlayer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification