Regroomable Balloon Catheter System and Methods of Use
AssigneeLamamed, LLC
InventorsCelso J. Bagaoisan, Suresh S. Pai, Scott R. Sershen
Life of this patent
Estimating the term…
Abstract
The various embodiments of the subject invention included herein provide devices, systems and methods for aiding the regrooming or refolding of balloons upon deflation. The scope of the inventions in this specification includes methods and devices that reduce the profile of balloons after deflation, reduce or eliminate wings, high-points, irregularities, bunching, thickening, and the like, and facilitate passage of a deflated balloon through a body void or lumen, or through a medical device such as a guide catheter, guide sheath, femoral or radial introducer sheath, and the like.
Claims47
A device to return an inflated balloon to a substantially low profile following deflation, comprising:
- an elongate catheter shaft comprising a proximal end and a distal end defining a longitudinal axis there between and a lumen extending between the proximal end and the distal end;
- an expandable member comprising an interior, an exterior, a proximal end, and a distal end, wherein the proximal end is coupled to the distal end of the elongate catheter shaft such that the interior of the expandable member is in communication with the lumen of the elongate catheter shaft, and wherein the expandable member is expandable from a collapsed state to an expanded state when pressurized;
- a stationary inner member comprising a proximal end and a distal end, wherein the distal end of the expandable member is positioned at the distal end of the stationary inner member;
- a catheter hub comprising a biasing member, wherein the catheter hub comprises an inflation port and is positioned at the proximal end of the stationary inner member;
- wherein the biasing member is slidably disposed within the catheter hub and wherein the distal end of the biasing member is positioned at the proximal end of the elongate catheter shaft, and wherein the biasing member is configured to pull the elongate catheter shaft in a lateral motion in a proximal direction when the expandable member is not pressurized to thereby at least partially collapse the expandable member.
The device of any one of the previous claims, wherein upon depressurizing the expandable member provides for a lateral motion in a proximal direction of the elongate catheter shaft thereby providing at least partial collapse of the expandable member from the expanded state.
The device of any one of the previous claims, wherein the catheter hub comprises a port in communication with the expandable member through the lumen of the elongate catheter shaft;
- wherein the port is configured to be connected to an inflation device to pressurize and de-pressurize the expandable member.
The device of any one of the previous claims, wherein the biasing member is a piston that divides the catheter hub into a distal chamber and a proximal chamber, where the proximal chamber is in communication with the lumen of the expandable member and the inflation port of the catheter hub.
The device of any one of the previous claims, wherein pressurization of the expandable member is achieved by application of pneumatic or hydraulic pressure.
The device of any one of the previous claims, wherein the biasing member further comprises a spring that disposes the biasing member in a proximal position relative to the catheter hub when the device is at or below atmospheric pressure.
The device of any one of the previous claims, where the inner member comprises a wire, a tube, a coil, or a braid.
The device of any one of the previous claims, wherein the catheter shaft is configured and arranged to be slidable over the inner member.
The device of any one of the previous claims, wherein the catheter shaft comprises polyimide, PEBAX®, braided polyimide, braided PEBAX, stainless steel, nitinol, PEEK, aluminum, titanium, nylon, braided nylon, or TEFLON®.
The device of any one of the previous claims wherein the expandable member comprises a balloon.
The device of any one of the previous claims, wherein the expandable member comprises a braided structure and linkages to provide for expansion of the expandable member.
The device of any one of the previous claims, wherein the biasing member comprises a spiral rail or groove that engages with the catheter hub via a linkage pin to allow for rotational movement of the biasing member with respect to the catheter hub when the device is in a pressurized state or a de-pressurized state.
The device of any one of the previous claims, wherein the biasing mechanism comprises a longitudinal rail or groove that interacts with the catheter hub via a linkage pin such that the biasing mechanism does not rotate with respect to the catheter hub when the apparatus is pressurized or de-pressurized via the catheter hub.
The device of any one of the previous claims, wherein the expandable balloon member comprises multi-pleat folds that are arranged in a substantially longitudinal orientation after the expandable member is de-pressurized or deflated.
The device of any one of the previous claims, wherein the expandable balloon member comprises multi-pleat folds that are arranged in a substantially spiral or twisted orientation after the expandable member is de-pressurized or deflated.
The device of any one of the previous claims, wherein the inner wall of the elongate catheter shaft comprises ribs or bumps or features that constrain the inner member within the lumen of the elongate catheter shaft to prevent or minimize the inner member from assuming a wavy condition or buckling within the lumen of the elongate catheter shaft.
The device of any one of the previous claims, wherein the inner member comprises ribs, bumps or features that constrain the inner member within the lumen of the elongate catheter shaft and prevent or minimize the inner member from assuming a wavy condition or buckling within the lumen of the elongate catheter shaft.
The device of any one of the previous claims, wherein the elongate catheter shaft, expandable member, stationary inner member, or catheter hub comprises a marker or multiple markers.
A device to return an inflated balloon to a substantially low profile following deflation, comprising:
- an elongate catheter shaft comprising a covering sheath, wherein the elongate catheter shaft comprises a proximal end and a distal end defining a longitudinal axis there between and a lumen extending between the proximal end and the distal end;
- an expandable balloon member comprising a proximal end and a distal end, wherein the proximal end of the expandable balloon member is coupled to the distal end of the elongate catheter shaft such that an interior of the expandable balloon member is in communication with the lumen of the elongate catheter shaft, wherein upon pressurization the expandable balloon member is expandable from a collapsed state to an expanded state;
- and
- a catheter hub comprising an inflation port, wherein the catheter hub is coupled to the proximal end of the elongate catheter shaft such that the lumen of the elongate catheter shaft is in communication with the inflation port of the catheter hub;
- wherein the covering sheath is positioned coaxially over the expandable balloon member and at least partially covers the expandable balloon member.
A device to return an inflated balloon to a substantially low profile following deflation, comprising:
- a balloon expandable component, an elongate catheter shaft and a slidable sheath, and a catheter hub;
- an elongate catheter shaft comprising a slidable sheath, wherein the elongate catheter shaft comprises a proximal end and a distal end defining a longitudinal axis there between and a lumen extending between the proximal end and the distal end;
- an expandable balloon member comprising a proximal end and a distal end, wherein the proximal end of the expandable balloon member is coupled to the distal end of the elongate catheter shaft such that an interior of the expandable member is in communication with the lumen of the elongate catheter shaft, wherein upon pressurization the expandable balloon member being expandable from a collapsed state to an expanded state;
- a catheter hub comprising an inflation port, wherein the catheter hub is coupled to the proximal end of the elongate catheter shaft such that the lumen of the elongate catheter shaft is in communication with the inflation port of the catheter hub;
- wherein said slidable sheath is positioned coaxially over the elongate catheter shaft is configured to be partially or completely covering the expandable balloon member.
Dependencies are inferred from the claim text.