Adjustable length catheter assembly
First Claim
1. A catheter assembly, comprising:
- a guide handle comprising a proximal end, a distal end, a lumen open at least at the distal end of the guide handle, and a stop member disposed within the lumen at a distal end of the guide handle;
a catheter comprising a proximal end disposed within the lumen of the guide handle and a preformed distal end, the catheter longitudinally displaceable within the guide handle to adjust an exposed length of the distal end of the catheter, the stop member engagable with the proximal end of the catheter to prevent the proximal end of the catheter from passing out of the guide handle; and
a locking mechanism provided within the guide handle, the locking mechanism engaging the guide handle with the catheter to selectably prevent and permit axial rotation between the guide handle and catheter while permitting longitudinal displacement of the catheter within the guide handle.
1 Assignment
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Accused Products
Abstract
A catheter assembly for cannulating a heart vessel includes a guide handle having proximal and distal ends, a lumen open at least at the distal end of the guide handle, and a stop member disposed within the lumen at a distal end of the guide handle. A catheter of the assembly has a proximal end disposed within the lumen of the guide handle and a preformed distal end. The catheter is longitudinally displaceable within the guide handle to adjust an exposed length of the distal end of the catheter. The stop member is engagable with the proximal end of the catheter to prevent the proximal end of the catheter from passing out of the guide handle. A locking mechanism within the guide handle to selectably prevents and permit axial rotation between the guide handle and catheter while permitting longitudinal displacement of the catheter within the guide handle.
90 Citations
34 Claims
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1. A catheter assembly, comprising:
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a guide handle comprising a proximal end, a distal end, a lumen open at least at the distal end of the guide handle, and a stop member disposed within the lumen at a distal end of the guide handle;
a catheter comprising a proximal end disposed within the lumen of the guide handle and a preformed distal end, the catheter longitudinally displaceable within the guide handle to adjust an exposed length of the distal end of the catheter, the stop member engagable with the proximal end of the catheter to prevent the proximal end of the catheter from passing out of the guide handle; and
a locking mechanism provided within the guide handle, the locking mechanism engaging the guide handle with the catheter to selectably prevent and permit axial rotation between the guide handle and catheter while permitting longitudinal displacement of the catheter within the guide handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A catheter assembly comprising:
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a guide handle comprising a distal end, a proximal end, a lumen open at the distal end of the guide handle, and a stop member disposed within the lumen at the distal end of the guide handle, a length of at least a portion of the lumen defining a travel length; and
a catheter comprising a proximal end disposed within the lumen of the guide handle and a preformed distal end, the catheter longitudinally displaceable within the guide handle to adjust an exposed length of the distal end of the catheter by a maximum length corresponding to the travel length of the lumen, and the stop member engaging with the proximal end of the catheter to prevent the proximal end of the catheter from passing out of the guide handle. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of inserting a payload into a coronary sinus of a patient'"'"'s heart, comprising:
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providing a guide catheter comprising;
a guide handle comprising a proximal end, a distal end, a lumen open at least at the distal end of the guide handle, and a stop member disposed within the lumen at a distal end of the guide handle;
a catheter comprising a proximal end disposed within the lumen of the guide handle and a preformed distal end, the catheter longitudinally displaceable within the guide handle to adjust an exposed length of the distal end of the catheter, the stop member engagable with the proximal end of the catheter to prevent the proximal end of the catheter from passing out of the guide handle; and
a locking mechanism provided within the guide handle, the locking mechanism engaging the guide handle with the catheter to selectably prevent and permit axial rotation between the guide handle and catheter while permitting longitudinal displacement of the catheter within the guide handle;
inserting the preformed distal end of the catheter through a venous pathway via an access vessel;
longitudinally displacing the catheter within the guide handle to adjust an exposed length of the distal end of the catheter and account for variability of the venous pathway; and
locking the guide handle and axially rotating the guide handle to direct the preformed distal end of the catheter for finding and cannulating the patient'"'"'s coronary sinus. - View Dependent Claims (32, 33, 34)
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Specification