ENTRY SITE TISSUE PUNCTURE SYSTEM
A tissue puncture assembly comprises an elongated needle having a needle distal tip. A cannula has an internal lumen sized and shaped to receive the elongated needle, wherein elongated needle is slidably positionable within the internal lumen via manipulation of a handle. An anchor lumen is coupled to the elongated needle, wherein the anchor lumen is configured to movably receive a tissue anchor.
1 . A tissue puncture assembly, comprising:
an elongated needle having a needle distal tip;
a handle on a proximal region of the elongated needle;
a cannula having an internal lumen sized and shaped to receive the elongated needle, wherein elongated needle is slidably positionable within the internal lumen via manipulation of the handle;
an anchor lumen coupled to the elongated needle, the anchor lumen configured to movably receive a tissue anchor.
2 . The assembly of claim 1 , wherein the needle distal tip has a tri-plane configuration.
3 . The assembly of claim 2 , wherein the tri-plane configuration includes three surfaces that are inclined relative to a long axis of the needle to form a pointed distal most tip of the needle.
4 . The assembly of claim 3 , wherein the three surfaces form respective planes inclined at 15 degrees relative to a long axis of the needle to form a pointed needle tip.
5 . The assembly of claim 1 , wherein the needle distal tip has a plurality of surfaces at various planes and in various angles to disperse a puncture force of the needle distal tip onto different angular contact surface areas.
6 . The assembly of claim 1 , wherein the anchor lumen is formed by a channel between the elongated needle and the cannula when the elongated needle is positioned within the internal lumen of the cannula.
7 . The assembly of claim 6 , wherein the channel.
8 . The assembly of claim 1 , wherein the anchor lumen is formed by a hypotube.
9 . The assembly of claim 1 , wherein the needle is at least partially manufactured of stainless steel, titanium, sapphire, ceramic, or an alloy.
10 . The assembly of claim 1 , further comprising the tissue anchor.
11 . The assembly of claim 1 , wherein the tissue anchor is a wire having an elongated proximal region sized and shaped to fit through the anchor lumen.
12 . The assembly of claim 1 , wherein the tissue anchor has a distal region that forms a fixed, uniform or random series of curves configured to engage and anchor with tissue when deployed.
13 . The assembly of claim 1 , wherein the tissue anchor comprises one or more undulating rods that expand outward.
14 . The assembly of claim 13 , wherein the undulating rods form one or more loops or spiral shapes configured to interact and anchor with anatomical tissue.
15 . The assembly of claim 1 , wherein the anchor lumen is a tube positioned in a side-by-side relationship with the elongated needle.
16 . The assembly of claim 15 , wherein the tube can slide relative to the elongated needle.
17 . The assembly of claim 1 , wherein the anchor lumen is configured for infusion or aspiration of therapy.
18 . The assembly of claim 17 , wherein the anchor lumen is configured for receiving an elongated anchor.
19 . The assembly of claim 1 , wherein the anchor lumen is a channel positioned inside the elongated needle.
20 . The assembly of claim 1 , wherein the anchor lumen is positioned outside the elongated needle.
21 . The assembly of claim 20 , wherein the anchor lumen is a space between the cannula and the elongated needle.