Catheter systems and associated methods
1 Assignment
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Accused Products
Abstract
A catheter system includes a guide catheter defining a proximal lumen and a distal lumen. The catheter system includes an actuator positioned within the proximal lumen, and an extension member positioned within the distal lumen. The catheter system further includes a first spring positioned in the proximal lumen and in contact with the actuator, and a second spring positioned in the distal lumen and in contact with the extension member. The catheter system further includes a cable connected between the actuator and the extension member.
141 Citations
30 Claims
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1. (canceled).
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2. A catheter system, comprising:
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a catheter having (i) a lumen that defines a distal orifice and a proximal orifice, and (ii) a first coupling configured to connect to a second coupling of a dialysis machine;
a member defining a fluid passage and being movable between (i) a first position in which said member is at least partially advanced out of said lumen through said distal orifice so that a distal end of said member is located at a first location outside of said lumen, and (ii) a second position in which said distal end of said member is located at a second location which is proximal to said first location;
a first spring positioned within said lumen, said first spring being configured to generate a first magnitude of spring force and urge said member toward said first position; and
a second spring positioned within said lumen, said second spring being configured to generate a second magnitude of spring force and urge said member toward said second position, wherein said second magnitude is greater than said first magnitude. - View Dependent Claims (3, 4, 5, 6)
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7. A catheter system, comprising:
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a conduit having a lumen that defines a distal orifice;
a member defining a fluid passage and movable between (i) a first position in which said member is at least partially advanced out of said lumen through said distal orifice so that a distal end of said member is located outside of said lumen, and (ii) a second position in which said distal end of said member is located within said lumen;
a first spring configured to urge said member toward said first position; and
a second spring configured to urge said member toward said second position. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A catheter system, comprising:
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a catheter having (i) a lumen that defines a distal orifice, and (ii) a first coupling configured to connect to a second coupling of a dialysis machine;
a member movable in relation to said catheter between (i) a first position in which a distal end of said member is located at a first location outside of said lumen, and (ii) a second position in which said distal end of said member is located at a second location that is proximal to said first location;
a first spring configured to urge said member toward said first position; and
a second spring configured to urge said member toward said second position. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A catheter system, comprising:
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a catheter having (i) a lumen that defines a distal orifice, and (ii) a first coupling configured to connect to a second coupling of a dialysis machine;
a member movable between (i) a first position in which said member is at least partially advanced out of said lumen through said distal orifice so that a distal end of said member is located outside of said lumen, and (ii) a second position in which said distal end of said member is located within said lumen;
a first spring configured to urge said member toward said first position; and
a second spring configured to urge said member toward said second position. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification