IP Library Granted Patent US 6,988,881
Granted Patent B2
US 6,988,881 · App. 10/107,768 · Granted Jan 24, 2006

Balloon folding technology

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Quick Facts
Patent No.
US 6,988,881
App. No.
10/107,768
Granted
Jan 24, 2006
Kind
B2
Abstract

An apparatus for folding a catheter balloon comprises a stationary base member; a rotatable drive hub which is moveable in relation to the stationary base member; and a pleating head aligned with respect to the stationary base member and to the rotatable drive hub. The pleating head includes at least three segments, each having a proximal end and an angled distal end with at least one angled side face terminating in an edge of a predetermined length. Each segment has a centerline between the proximal and distal ends, each segment having a proximal point and a distal point, and the proximal point being pivotally coupled by pins to the stationary base member and the distal point being pivotally coupled by pins to the rotatable hub member. The segments are arranged so that the segment distal ends are disposed adjacent to and a predetermined distance away from a central point and defining a central aperture with a spiral-pleat dimension having at least three channels in communication with a central aperture. Also, the segment centerlines extend therefrom toward the segment distal ends and are oriented away from the central point. The segment distal ends move closer to the central point upon rotation of the rotatable hub member in a predetermined direction, whereby the balloon is disposed around a shaft substrate, aligned in the central aperture and pleated around the shaft substrate upon rotation of the rotatable hub. A method of pleating and folding a catheter balloon is also disclosed.

Claims (22)

1. An apparatus for pleating a balloon by segmental radial compression, comprising:

a. a pair of aligned, stationary base members separated a predetermined distance;

b. a pair of aligned rotatable drive hubs which are moveable in relation to the stationary base member and in synchronization with each other; and

c. a pleating head aligned with respect to the base members and the drive hubs, and including at least three segments;

i. the segments each having a proximal end and an angled distal end with at least one angled side face terminating in an edge of a predetermined length, each segment having a centerline between the proximal and distal ends, each segment having a proximal point and a distal point, the distal point being disposed off the centerline and the proximal point being disposed off the centerline, and the proximal point being pivotally coupled by pins to the stationary base members and the distal point being pivotally coupled by pins to the rotatable hub members;

ii. the segments being arranged so that the segment distal ends are disposed adjacent to and a predetermined distance away from a central point and defining a central aperture with a spiral-pleat dimension having at least three channels in communication with a central aperture, and that the segment centerlines extending therefrom toward the segment distal ends are oriented away from the central point; and

iii. the segment distal ends moving closer to the central point upon rotation of the rotatable hub members in a predetermined direction, whereby the balloon is disposed around a shaft substrate, aligned in the central aperture and pleated around the shaft substrate upon rotation of the rotatable hub.

2. An system for pleating and folding a balloon by segmental radial compression, comprising:

A. a balloon pleating head device including:

a. a stationary base member;

b. a rotatable drive hub which is moveable in relation to the stationary base member; and

c. a pleating head aligned with respect to the stationary base member and to the rotatable drive hub, and including at least three segments;

i. the segments each having a proximal end and an angled distal end with at least one angled side face terminating in an edge of a predetermined length, each segment having a centerline between the proximal and distal ends, each segment having a proximal point and a distal point, the distal point being disposed off the centerline and the proximal point being disposed off the centerline, and the proximal point being pivotally coupled by pins to the stationary base member and the distal point being pivotally coupled by pins to the rotatable hub member;

ii. the segments being arranged so that the segment distal ends are disposed adjacent to and a predetermined distance away from a central point and defining a central aperture with a spiral-pleat dimension having at least three channels in communication with a central aperture, and that the segment centerlines extending therefrom toward the segment distal ends are oriented away from the central point; and

iii. the segment distal ends moving closer to the central point upon rotation of the rotatable hub member in a predetermined direction, whereby the balloon is disposed around a shaft substrate, aligned in the central aperture and pleated around the shaft substrate upon rotation of the rotatable hub; and

B. a pleated balloon folding device including;

a. a stationary base member;

b. a rotatable drive hub which is moveable in relation to the stationary base member; and

c. a folding head aligned with respect to the stationary base member and to the rotatable drive hub, and including at least ten segments;

i. the segments each having a proximal end and an angled distal end with at least one angled side face terminating in an edge of a predetermined length, each segment having a centerline between the proximal and distal ends, each segment having a proximal point and a distal point, the distal point being disposed off the centerline and the proximal point being disposed off the centerline, and the proximal point being pivotally coupled by pins to the stationary base member and the distal point being pivotally coupled by pins to the rotatable hub member;

ii. the segments being arranged so that the segment distal ends are disposed adjacent to and a predetermined distance away from a central point and defining a central aperture with a cylindrical dimension, and that the segment centerlines extending therefrom toward the segment distal ends are oriented away from the central point; and

iii. the segment distal ends moving closer to the central point upon rotation of the rotatable hub member in a predetermined direction, whereby the pleated balloon disposed around a shaft substrate, is aligned in the central aperture and folded around the shaft substrate upon rotation of the rotatable hub.

Assignments (3)
RIDER TO SECURITY AGREEMENT - PATENTS Recorded Oct 6, 2020
From: MACHINE SOLUTIONS, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 053990/0687 →
SECURITY INTEREST Recorded May 25, 2017
From: MACHINE SOLUTIONS, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 042577/0432 →
RELEASE OF SECURITY INTEREST Recorded May 8, 2017
From: THE PRIVATEBANK AND TRUST COMPANY
To: MACHINE SOLUTIONS, INC.
Reel/Frame 042276/0248 →