Multilumen catheter
First Claim
1. A catheter comprising a catheter body having an elongated tubular wall formed of flexible material and having proximal and distal ends;
- pressure responsive means mounted upon said body adjacent the distal end thereof;
said body having a lumen extending from said proximal end to said distal end and communicating with said pressure responsive means;
said body also having a recess in the wall thereof proximal to said means and communicating with said lumen;
a plug disposed within said recess and sealed to said body to prevent liquid flow into said lumen through said recess;
said plug having a longitudinal passage for the flow of gas therethrough; and
an electrical element sealed in said plug and having electrical conducting means associated therewith and extending from said plug through the portion of said lumen proximal to said plug.
3 Assignments
0 Petitions
Accused Products
Abstract
A multilumen catheter having passages for the flow of gas, the enclosure of electrical leads, and the transmission of fluids for injection and sampling. The gas transmitting lumen also carries the electrical leads which extend to an electrical element disposed within a passage-providing plug located at a point spaced from the catheter'"'"'s distal end. The plug blocks the entry of fluids into the catheter without at the same time interfering with the flow of gas therethrough. In one embodiment, the passage-providing plug is at least partially pre-formed and is fitted into the space otherwise occupied by sections of a pair of adjacent lumens, thereby allowing a relatively large electrical element to be mounted within such space; in a second embodiment the element is mounted in a passage-providing plug disposed within a single lumen; and in a third embodiment the element is embedded in a passage-providing plug which is formed in place. Methods for making such catheters are also disclosed.
47 Citations
27 Claims
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1. A catheter comprising a catheter body having an elongated tubular wall formed of flexible material and having proximal and distal ends;
- pressure responsive means mounted upon said body adjacent the distal end thereof;
said body having a lumen extending from said proximal end to said distal end and communicating with said pressure responsive means;
said body also having a recess in the wall thereof proximal to said means and communicating with said lumen;
a plug disposed within said recess and sealed to said body to prevent liquid flow into said lumen through said recess;
said plug having a longitudinal passage for the flow of gas therethrough; and
an electrical element sealed in said plug and having electrical conducting means associated therewith and extending from said plug through the portion of said lumen proximal to said plug. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- pressure responsive means mounted upon said body adjacent the distal end thereof;
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13. A multilumen catheter comprising a catheter body having an elongated tubular wall formed of flexible material and having proximal and distal ends;
- pressure responsive means mounted upon said body adjacent the distal end thereof;
said body having a first lumen extending from said proximal to said distal end and communicating with said pressure responsive means;
said body also having a second lumen for conducting liquids through said catheter, said second lumen being separated from said first lumen by a longitudinal septum;
a recess in the wall of said body proximal to said balloon and communicating with both said first and second lumens;
a plug disposed within said recess and sealed to said catheter body to prevent the entry and exit of fluids through said recess and to provide a seal to block the flow of liquid in a distal direction through said second lumen, said plug having a longitudinal passage therethrough communicating only with said first lumen for the flow of gas therethrough; and
an electrical element sealed to said plug and including electrical conducting means extending through the portion of said first lumen proximal to said plug. - View Dependent Claims (14, 15, 16, 17, 18, 19)
- pressure responsive means mounted upon said body adjacent the distal end thereof;
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20. A method of mounting an electrical element in a catheter having a gas transmitting lumen, comprising the steps of forming a recess through the wall of said catheter intermediate the distal and proximal ends thereof, said recess communicating with said lumen;
- inserting at least one electrical lead into said lumen to locate the same between said recess and the catheter'"'"'s proximal end; and
positioning and sealing an electrical element within said recess to block the flow of fluids into and out of said catheter through said recess without at the same time preventing the flow of gas through said lumen. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- inserting at least one electrical lead into said lumen to locate the same between said recess and the catheter'"'"'s proximal end; and
Specification