Single-use indicator for a surgical instrument and a surgical instrument incorporating same
First Claim
1. A surgical instrument, comprising:
- an elongate body having a longitudinal axis, a distal end, an exterior wall defining a transparent or translucent indicator lumen, and at least one side port disposed entirely proximal of said distal end in said exterior wall, said side port laterally offset from said longitudinal axis and extending through said exterior wall in a transverse direction relative to said longitudinal axis, said side port in fluid communication with said indicator lumen;
an occlusion balloon coupled to said body, wherein said body defines a second lumen that is in fluid communication with said occlusion balloon; and
an absorbent material disposed in said indicator lumen, such that when said body is immersed in blood, blood flows into said at least one side port to said indicator lumen and is absorbed by said absorbent material.
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Accused Products
Abstract
A single-use indicator is provided and is particularly well suited for use with a surgical catheter device. The indicator includes an absorbent filament or wick which is placed in a transparent or translucent indicator lumen of a multi-lumen catheter. The lumen is provided with at least one side port. When the catheter is inserted into a blood vessel, blood enters the indicator lumen through the side port and is absorbed by the filament, thus turning the filament red or purple in color. When the instrument is removed from the blood vessel, the stained filament is clearly visible as an indicator that the instrument has been used. Because the filament is trapped inside a lumen of a relatively long catheter, it is difficult or impossible to remove it during a remanufacturing process.
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Citations
16 Claims
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1. A surgical instrument, comprising:
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an elongate body having a longitudinal axis, a distal end, an exterior wall defining a transparent or translucent indicator lumen, and at least one side port disposed entirely proximal of said distal end in said exterior wall, said side port laterally offset from said longitudinal axis and extending through said exterior wall in a transverse direction relative to said longitudinal axis, said side port in fluid communication with said indicator lumen; an occlusion balloon coupled to said body, wherein said body defines a second lumen that is in fluid communication with said occlusion balloon; and an absorbent material disposed in said indicator lumen, such that when said body is immersed in blood, blood flows into said at least one side port to said indicator lumen and is absorbed by said absorbent material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for treating blood vessels, comprising:
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an elongate body having a proximal end, a distal end, a longitudinal axis, and an infusion lumen extending there-through, the body having an exterior wall defining a transparent or translucent indicator lumen and at least one side port, said side port laterally offset from said longitudinal axis and extending through said exterior wall in a transverse direction relative to said longitudinal axis, said side port disposed proximal of said distal end in said exterior wall and in fluid communication with said indicator lumen; a plurality of spaced apart infusion holes along a length of the infusion lumen; an elongate valve member which is movable inside said infusion lumen from a first position in which access to some but not all of the infusion holes are blocked by said elongate valve member to a second position where access to fewer of the infusion holes are blocked by said elongate valve member; an infusion port coupled to said elongate valve member, such that infusion fluid injected into said infusion port flows through said elongate valve member, into a portion of said infusion lumen; and an absorbent material disposed in said indicator lumen, such that, when said body is immersed in blood, blood flows into said at least one side port to said indicator lumen and is absorbed by said absorbent material and said absorbent material can be seen inside said indicator lumen. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification