CATHETER DISTAL TIP CONFIGURATION
First Claim
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1. A catheter comprising:
- an elongated body extending between a proximal end and a distal end, the elongated body comprising;
an inner liner defining an inner lumen of the elongated body;
an outer jacket; and
a structural support member positioned between at least a portion of the inner liner and the outer jacket, wherein the outer jacket comprises;
a first section decreasing in durometer along a length of the first section in a direction towards the distal end of the elongated body; and
a second section more distal than the first section and including the distal end of the elongated body, the second section having a higher durometer than a distal portion of the first section, wherein the second section and the inner liner define a distal opening of the elongated body configured to resist geometric deformation when the distal end of the elongated body is engaged with a guidewire.
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Abstract
In some examples, an outer jacket of a catheter body comprises a first section that decreases in durometer along a length of the first section in a direction towards a distal end of the catheter body, and a second section more distal than the first section and including the distal end of the catheter body, the second section having a higher durometer than a distal portion of the first section. The second section of the outer jacket and the inner liner define a distal opening of the catheter body that is configured to resist geometric deformation when the distal end of the catheter body is engaged with a guidewire.
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Citations
22 Claims
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1. A catheter comprising:
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an elongated body extending between a proximal end and a distal end, the elongated body comprising; an inner liner defining an inner lumen of the elongated body; an outer jacket; and a structural support member positioned between at least a portion of the inner liner and the outer jacket, wherein the outer jacket comprises; a first section decreasing in durometer along a length of the first section in a direction towards the distal end of the elongated body; and a second section more distal than the first section and including the distal end of the elongated body, the second section having a higher durometer than a distal portion of the first section, wherein the second section and the inner liner define a distal opening of the elongated body configured to resist geometric deformation when the distal end of the elongated body is engaged with a guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A catheter comprising:
an elongated body defining a lumen and extending between a proximal end and a distal end, the elongated body comprising; an inner liner defining an inner lumen of the elongated body and extending toward the distal end of the elongated body; a structural support member; and an outer jacket extending to the distal end of the elongated body, the structural support member being positioned between the inner liner and the outer jacket, the outer jacket including a proximal segment at the proximal end of the elongated body, a distal segment at a distal end of the elongated body, and a medial segment between the proximal portion and the distal portion, the distal segment having a durometer greater than a durometer of the medial segment. - View Dependent Claims (17, 18, 19, 20, 21, 22)
Specification