Doppler directed suture ligation device and method
First Claim
1. A method of preparing an anatomical vessel contained within a tissue bundle for ligation, comprising the steps of:
- positioning a cannula adjacent to said tissue bundle, wherein said positioning is non-penetrating, said cannula including a first extendable member, a second extendable member, a Doppler wand, and a distal end;
transmitting ultrasound signals toward said vessel through said tissue bundle with said Doppler wand;
receiving ultrasound signals reflected by said vessel through said tissue bundle with said Doppler wand;
invaginating said tissue bundle with said first extendable member on a first side of said tissue bundle;
invaginating said tissue bundle with said second extendable member on a second side of said bundle opposite said first side; and
interpenetrating a length of ligation material between said first and second extendable members on a side of said vessel opposite said cannula distal end.
2 Assignments
0 Petitions
Accused Products
Abstract
Exemplary embodiments are directed to providing a method of preparing an anatomical vessel contained within a tissue bundle for ligation, including positioning a cannula adjacent to the tissue bundle, wherein the positioning is non-penetrating, the cannula including a first extendable member, a second extendable member, a Doppler wand, and a distal end, transmitting ultrasound signals toward the vessel through the tissue bundle with the Doppler wand, receiving ultrasound signals reflected by the vessel through the tissue bundle with the Doppler wand, invaginating the tissue bundle with the first extendable member on a first side of the tissue bundle, invaginating the tissue bundle with the second extendable member on a second side of the bundle opposite the first side, and interpenetrating a length of ligation material between the first and second extendable members on a side of the vessel opposite the cannula distal end.
128 Citations
13 Claims
-
1. A method of preparing an anatomical vessel contained within a tissue bundle for ligation, comprising the steps of:
-
positioning a cannula adjacent to said tissue bundle, wherein said positioning is non-penetrating, said cannula including a first extendable member, a second extendable member, a Doppler wand, and a distal end;
transmitting ultrasound signals toward said vessel through said tissue bundle with said Doppler wand;
receiving ultrasound signals reflected by said vessel through said tissue bundle with said Doppler wand;
invaginating said tissue bundle with said first extendable member on a first side of said tissue bundle;
invaginating said tissue bundle with said second extendable member on a second side of said bundle opposite said first side; and
interpenetrating a length of ligation material between said first and second extendable members on a side of said vessel opposite said cannula distal end. - View Dependent Claims (2, 3, 4, 5, 6)
retracting said second extendable member in a proximal direction; and
releasing said detachable element from said first extendable member.
-
-
4. The method as set forth to claim 1, wherein said first extendable member includes a tissue penetrating element to which said ligation material is attached, and further comprising piercing said tissue penetrating element into said tissue bundle.
-
5. The method as set forth to claim 4, wherein said tissue penetrating element includes a detachable element to which said ligation material is attached, and further comprising grabbing said detachable element with portions of said second extendable member.
-
6. The method as set forth to claim 4, further comprising the steps of:
-
retracting said second extendable member in a proximal direction; and
releasing said detachable element from said first extendable member.
-
-
7. A ligation device for occluding a blood vessel contained within a tissue bundle, comprising:
-
a cannula having a distal end that is configured for positioning adjacent the tissue bundle;
an ultrasound signals transmitter and an ultrasonic receiver configured to detect the blood vessel within tissue bundle;
a first elongated member configured to invaginate the tissue on a first side of the tissue bundle;
a second elongated member configured to invaginate the tissue on a second side of bundle opposite the first side; and
a penetrating member configured for advancing a length of ligation material between the first and second elongated members on a side of the blood vessel opposite the cannula distal end. - View Dependent Claims (8, 9, 10, 11, 12)
a release mechanism configured for releasing the detachable element from the first extendable member. -
10. The device as set forth to claim 8, wherein first extendable member includes a tissue penetrating element attached to the ligation material, and further comprising a piercing element configured for piercing the tissue penetrating element into the tissue bundle.
-
11. The device as set forth to claim 10, wherein the tissue penetrating element includes a detachable element attached to the ligation material, and further comprising a capture element configured for grabbing the detachable element.
-
12. The device as set forth to claim 10, wherein the second elongated member is further configured to be retracted in a proximal direction, and further comprising
a release configured for releasing the detachable element from the first extendable member.
-
-
13. A ligation device for occluding a blood vessel contained within a tissue bundle, comprising:
-
a cannula having a distal end that is configured for positioning adjacent the tissue bundle;
an ultrasound means to detect the blood vessel within the tissue bundle;
a first elongated means to invaginate tissue on a first side of the tissue bundle;
a second elongated means to invaginate tissue on a second side of the tissue bundle opposite the first side; and
a penetrating means for advancing a length of ligation material between the first and second elongated means on a side of the blood vessel opposite the cannula distal end.
-
Specification