Granted Patent
B2
US 12,623,061 · App. 17/672,472 · Granted May 12, 2026
Support catheters and associated loading components
Inventors:
Jason Galdonik (Minneapolis, MN); Mark W. I. Webster (Auckland, NZ); Christopher E. Buller (Toronto, CA); Joshua Brenizer (Oak Grove, MN); Daniel Jindra (Andover, MN)
Assignee:
Teleflex Life Sciences LLC
View Patent ↗
Loading inventors, assignments & file history…
Abstract
Split support catheters, loading tools, and methods of use are disclosed. A support catheter can include an elongate tubular member and a push member. The tubular member can comprise a longitudinal slit configured to accommodate the exchange of various interventional devices into and out of the lumen defined by the tubular member. A loading tool can comprise a body member, a rod member, or both and can facilitate loading of the support catheter onto one or more interventional devices during a medical procedure. The support catheters can provide intravascular support to various interventional devices and can advantageously be inserted and removed without first removing an interventional device having its distal end at or near a target site within a patient's vasculature.
Claims (15)
1 . A guide extension catheter for use with a guide catheter, comprising:
an elongate tube member having a longitudinal slit, a lumen, and an outer diameter smaller than a lumen of the guide catheter, the elongate tube member further having or coupled with an angled proximal port; and
a push member eccentrically coupled relative to an axis of the elongate tube member and extending proximal of the elongate tube member for slidably positioning the elongate tube member within and partially beyond a distal end of the guide catheter,
wherein the longitudinal slit includes a straight portion and at least one slanted or curved portion relative to the axis of the elongate tube member, the at least one slanted or curved portion located distal to the straight portion.
2 . The guide extension catheter of claim 1 , wherein the outer diameter of the elongate tube member tapers distally, such that the outer diameter is smaller at a distal portion of the elongate tube member than at a proximal portion of the elongate tube member.
3 . The guide extension catheter of claim 2 , wherein the distal portion of the elongate tube member comprises a flexible, tapered distal tip configured to fold proximally into the lumen of the elongate tube member.
4 . The guide extension catheter of claim 1 , wherein a width of the longitudinal slit varies along a length of the elongate tube member.
5 . The guide extension catheter of claim 1 , wherein the push member comprises a flattened portion embedded in at least a portion of the elongate tube member.
6 . The guide extension catheter of claim 5 , wherein the flattened portion of the push member extends substantially an entire length of the elongate tube member.
7 . The guide extension catheter of claim 1 , wherein a distal portion of the elongate tube member is curved.
8 . The guide extension catheter of claim 1 , wherein the longitudinal slit is configured to accommodate an exchange of an interventional device into and out of the lumen of the elongate tube member.
9 . The guide extension catheter of claim 1 , wherein the at least one slanted or curved portion spans a length of 0.25 centimeters to 3 centimeters, inclusive.
10 . The guide extension catheter of claim 1 , wherein the elongate tube member comprises a frame defined by a longitudinal spine and a plurality of prongs extending from the longitudinal spine.
11 . The guide extension catheter of claim 1 , wherein the angled proximal port is defined by a slanted wall, a collar, or a concave track extending from the push member to a fully cylindrical portion of the elongate tube member.
12 . The guide extension catheter of claim 1 , wherein the push member is coupled to the elongate tube member at a location opposite a location of the longitudinal slit.
Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 16, 2024
From: TELEFLEX LIFE SCIENCES LIMITED
To: TELEFLEX LIFE SCIENCES III LLC
Reel/Frame 066617/0582 →
MERGER
Recorded Feb 16, 2024
From: TELEFLEX LIFE SCIENCES III LLC
To: TELEFLEX LIFE SCIENCES LLC
Reel/Frame 066621/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jan 15, 2024
From: TELEFLEX LIFE SCIENCES LIMITED
To: TELEFLEX LIFE SCIENCES III LLC
Reel/Frame 066305/0565 →
MERGER
Recorded Jan 15, 2024
From: TELEFLEX LIFE SCIENCES III LLC
To: TELEFLEX LIFE SCIENCES LLC
Reel/Frame 066305/0817 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 15, 2022
From: BULLER, CHRISTOPHER E.; BRENIZER, JOSHUA; JINDRA, DANIEL
To: TELEFLEX LIFE SCIENCES LIMITED
Reel/Frame 059019/0564 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 15, 2022
From: GALDONIK, JASON; WEBSTER, MARK W. I.
To: TELEFLEX LIFE SCIENCES LIMITED
Reel/Frame 059125/0067 →
Continuity (2)
Provisional Application
63149510
· Feb 15, 2021
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