US5221255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced multiple lumen catheter
Assignee: SUDHA S MAHURKAR TRUST
•
Filing: 1991-10-16
•
Granted: 1993-06-22
•
Expires: 2011-10-16
Abstract
Abstract A dual-lumen catheter comprises an elongated cylindrical tube made of silicone and having an internal septum extending along the length thereof to form a pair of longitudinal lumens. A hollow conical tip is formed on the distal end of the tube with the outside surface of the conical tip merging smoothly with the outside surface of the tube, and the inside surface of the conical tip merging smoothly with the inside surface of one of the lumens. The distal end of the other lumen is longitudinally spaced from the distal end of the tip. A reinforcing member is located inside the tube and extends along the length of the tube. The reinforcing member is made of a material which is substantially stiffer than the material of the tube so that the catheter can be advanced against a resistance by the applications of force to the proximal end of the catheter.
Inventors
- 👤 Sakharam D. Mahurkar
- 👤 Smriti S. Mahurkar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:05
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/003; A61M25/0028; A61M25/0043; A61M25/005; A61M2025/0031; A61M2025/0037; A61M2025/004; A61M25/0009; A61M25/0012; A61M25/0029; A61M25/0053
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
158 words
A dual-lumen hemodialysis catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing member extending along the length of said septum, and made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when the pressure differential of a dialysis system exists across said septum, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 2
Dependent Claim
158 words
A dual-lumen hemodialysis catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing member extending along the length of said septum, and made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when the pressure differential of a dialysis system exists across said septum, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 3
Dependent Claim
19 words
The dual-lumen catheter of claim 1 wherein said septum is flat so that said lumens have D-shaped cross sections.
Claim 4
Dependent Claim
73 words
The dual-lumen catheter of claim 1 which includes a hollow conical tip on the distal end of said tube, the outside surface of said conical tip merging smoothly with the outside surface of the tube, and the inside surface of said conical tip merging smoothly with the inside surface of one of said lumens, the distal end of the other of said lumens being longitudinally spaced from the distal end of said tip.
Claim 5
Dependent Claim
85 words
The dual-lumen catheter of claim 3 wherein said conical tip forms a solid connection from the distal end of said septum and other lumen to the distal end of said tip, and the distal end of said reinforcing member engages said solid connection providing axial column strength so that longitudinal forces applied to said tube are transmitted to said tip via said reinforcing member so as to apply to the tip of said catheter a longitudinal force which urges said catheter in the distal direction.
Claim 6
Dependent Claim
19 words
The dual-lumen catheter of claim 3 wherein said conical tip is molded directly onto the end of said tube.
Claim 7
Dependent Claim
27 words
The dual-lumen catheter of claim 3 wherein the distal end of one of said lumens and said septum are connected to said conical tip by solid material.
Claim 8
Dependent Claim
39 words
The dual-lumen catheter of claim 3 wherein said conical tip is preformed and bonded to the end of said tube, a portion of said preformed tip extending into said tube to form the terminus of one of said lumens.
Claim 9
Dependent Claim
14 words
The dual-lumen catheter of claim i wherein said reinforcing member is made of nylon.
Claim 10
Dependent Claim
23 words
The dual-lumen catheter of claim 1 wherein said reinforcing member and a portion of said tube at the distal end thereof are interlocked.
Claim 11
Dependent Claim
22 words
The dual-lumen catheter of claim 1 which includes a kink-resisting spiral of reinforcing material wound around a substantial length of said tube.
Claim 12
Dependent Claim
18 words
The dual-lumen catheter of claim 10 wherein said spiral is embedded in the cylindrical wall of said tube.
Claim 13
Dependent Claim
19 words
The dual-lumen catheter of claim 1 wherein said reinforcing member includes a planar stiff material enclosed within said septum.
Claim 14
Dependent Claim
20 words
The dual-lumen catheter of claim 1 which includes a circumferential reinforcing member extending around the circumference of said cylindrical tube.
Claim 15
Dependent Claim
182 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a uniformly soft material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, said septum comprising a pair of transversely spaced longitudinal webs formed as integral parts of said tube, and a reinforcing member comprising a flat strip of stiff material located longitudinally between said webs and bonded thereto so that said reinforcing member is completely enclosed by said webs of soft compatible material and is isolated from body fluids passing through said lumens, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when a pressure differential exists across said septum.
Claim 16
Dependent Claim
182 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a uniformly soft material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, said septum comprising a pair of transversely spaced longitudinal webs formed as integral parts of said tube, and a reinforcing member comprising a flat strip of stiff material located longitudinally between said webs and bonded thereto so that said reinforcing member is completely enclosed by said webs of soft compatible material and is isolated from body fluids passing through said lumens, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when a pressure differential exists across said septum.
Claim 17
Dependent Claim
42 words
The dual-lumen catheter of claim 14 wherein the transverse dimension of said reinforcing strip, in the direction parallel to said webs, is greater than the inside diameter of said tube so that said strip extends partially into the walls of the tube.
Claim 18
Independent Claim
119 words
A method of introducing a dual-lumen catheter into a femoral vein of a patient for long-term use, said method comprising the steps of making a subcutaneous tunnel on the abdomen of the patient, beginning above the inguinal ligament and extending downwardly to a point on the thigh that is proximate the femoral vein, passing a dual-lumen catheter downwardly through said tunnel, and then bending the catheter and inserting it upwardly into said femoral vein, in the direction of blood flow within said vein, said catheter being bent in a generally U-shaped configuration between the lower end of the tunnel and the point of access to said femoral vein, said U-bend being reinforced by a spiral winding of reinforcing material.
Claim 19
Independent Claim
119 words
A method of introducing a dual-lumen catheter into a femoral vein of a patient for long-term use, said method comprising the steps of making a subcutaneous tunnel on the abdomen of the patient, beginning above the inguinal ligament and extending downwardly to a point on the thigh that is proximate the femoral vein, passing a dual-lumen catheter downwardly through said tunnel, and then bending the catheter and inserting it upwardly into said femoral vein, in the direction of blood flow within said vein, said catheter being bent in a generally U-shaped configuration between the lower end of the tunnel and the point of access to said femoral vein, said U-bend being reinforced by a spiral winding of reinforcing material.
Claim 20
Dependent Claim
122 words
A multiple-lumen catheter comprising: an elongated cylindrical silicone tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction. one of said distal openings being formed by at least one aperture in the side wall of said tube opening into one of said lumens, and a reinforcing solid-walled tube extending along the full length of, and embedded in the walls of, only one of said lumens for transmitting forces applied to the proximal end of said tube to said conical tip, and for preventing one of said lumens from collapsing when the pressure differential of a dialysis system exists across said septum.
Claim 21
Dependent Claim
122 words
A multiple-lumen catheter comprising: an elongated cylindrical silicone tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction. one of said distal openings being formed by at least one aperture in the side wall of said tube opening into one of said lumens, and a reinforcing solid-walled tube extending along the full length of, and embedded in the walls of, only one of said lumens for transmitting forces applied to the proximal end of said tube to said conical tip, and for preventing one of said lumens from collapsing when the pressure differential of a dialysis system exists across said septum.
Claim 22
Dependent Claim
20 words
The dual-lumen catheter of claim 17 wherein both said one lumen and said reinforcing member have D-shaped transverse cross sections.
Claim 23
Dependent Claim
37 words
The dual-lumen catheter of claim 17 wherein the inside walls of said reinforcing member are coated with the same material that forms said tube so that said tubular reinforcing member is isolated from body tissues and fluids.
Claim 24
Dependent Claim
170 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material and having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having D-shaped cross sections and distal openings which are offset from each other in the axial direction, said septum comprising a flat strip of stiff material extending longitudinal through said septum, the distal end of said strip being connected to the distal end of said tube and having apertures therein, portions of said tube extending transversely through said apertures to interlock said strip and said tube, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when the pressure differential of a dialysis system exists across said septum.
Claim 25
Dependent Claim
170 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material and having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having D-shaped cross sections and distal openings which are offset from each other in the axial direction, said septum comprising a flat strip of stiff material extending longitudinal through said septum, the distal end of said strip being connected to the distal end of said tube and having apertures therein, portions of said tube extending transversely through said apertures to interlock said strip and said tube, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said lumens will not collapse by deflection of said septum when the pressure differential of a dialysis system exists across said septum.
Claim 26
Dependent Claim
209 words
A blood purification system comprising: a dialysis system for purifying a patient's blood; and a dual-lumen catheter coupled to said dialysis system comprising: an elongated cylindrical tube made of a soft, elastic material which is compatible with the human body, said tube having an internal septum extending along the length thereof to form first and second longitudinal lumens having distal openings which are offset from each other in the axial direction, wherein said dialysis system withdraws blood through said first lumen under a negative pressure and returns blood through said second lumen under a positive pressure, so that a pressure differential exists across said septum, and a diametral reinforcing member extending along the length of said tube and made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said first lumen will not collapse by deflection of said septum from the pressure differential produced across said septum by a dialysis system said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 27
Dependent Claim
209 words
A blood purification system comprising: a dialysis system for purifying a patient's blood; and a dual-lumen catheter coupled to said dialysis system comprising: an elongated cylindrical tube made of a soft, elastic material which is compatible with the human body, said tube having an internal septum extending along the length thereof to form first and second longitudinal lumens having distal openings which are offset from each other in the axial direction, wherein said dialysis system withdraws blood through said first lumen under a negative pressure and returns blood through said second lumen under a positive pressure, so that a pressure differential exists across said septum, and a diametral reinforcing member extending along the length of said tube and made of a material which is substantially stiffer than the material of said tube so that the catheter can be advanced longitudinally against a resistance by the application of force proximally of the resistance and so that said first lumen will not collapse by deflection of said septum from the pressure differential produced across said septum by a dialysis system said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 28
Dependent Claim
129 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other int he axial direction, and a diametral reinforcing strip extending along the length of said septum, said reinforcing strip being sufficiently stiffer than the material of said tube to prevent collapse of either of said lumens by a pressure differential across the reinforced septum, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff material of said reinforcing strip is not exposed to body fluids passing through said lumens.
Claim 29
Dependent Claim
129 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other int he axial direction, and a diametral reinforcing strip extending along the length of said septum, said reinforcing strip being sufficiently stiffer than the material of said tube to prevent collapse of either of said lumens by a pressure differential across the reinforced septum, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff material of said reinforcing strip is not exposed to body fluids passing through said lumens.
Claim 30
Dependent Claim
153 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a soft polymer and having an internal planar septum extending axially therein to divide the interior of said tube into a pair of longitudinal lumens which are D-shaped in traverse section, one of said lumens extending through the distal end of the catheter, at least one aperture in the side wall of said tube opening into the other of said lumens, said septum comprising a pair of parallel webs joined to the side walls of said tube, and a diametral reinforcing strip enclosed between said webs, so that said strip is completely embedded within said septum so that said reinforcing material is not exposed to body fluids passing through said lumens, said strip having a greater stiffness than said tube and webs in the axial direction, and means for connecting the proximal ends of said lumens to two different fluid flow paths.
Claim 31
Dependent Claim
153 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a soft polymer and having an internal planar septum extending axially therein to divide the interior of said tube into a pair of longitudinal lumens which are D-shaped in traverse section, one of said lumens extending through the distal end of the catheter, at least one aperture in the side wall of said tube opening into the other of said lumens, said septum comprising a pair of parallel webs joined to the side walls of said tube, and a diametral reinforcing strip enclosed between said webs, so that said strip is completely embedded within said septum so that said reinforcing material is not exposed to body fluids passing through said lumens, said strip having a greater stiffness than said tube and webs in the axial direction, and means for connecting the proximal ends of said lumens to two different fluid flow paths.
Claim 32
Dependent Claim
22 words
The dual-lumen catheter of claim 23 which includes a conically tapered tip whose circumference smoothly merges with the circumference of the catheter.
Claim 33
Dependent Claim
19 words
The dual-lumen catheter of claim 24 wherein the first lumen opens at the apex of the conically tapered tip.
Claim 34
Dependent Claim
22 words
The dual-lumen catheter of claim 24 wherein the tip of the catheter is attached to the distal end of said reinforcing member.
Claim 35
Dependent Claim
22 words
The dual-lumen catheter of claim 23 wherein said reinforcing member is enveloped in the catheter material on all the sides and ends.
Claim 36
Dependent Claim
24 words
The dual-lumen catheter of claim 23 wherein the proximal end of said reinforcing member is anchored at the lumen diversion portion of the catheter.
Claim 37
Dependent Claim
14 words
The dual-lumen catheter of claim 23 which includes additional spiral reinforcement along its circumference.
Claim 38
Dependent Claim
27 words
The dual-lumen catheter of claim 23 wherein said reinforcing member extends laterally beyond the internal diameter of the tube to anchor in the walls of the tube.
Claim 39
Dependent Claim
113 words
A dual-lumen hemodialysis catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tue having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing member extending along the length of said septum and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 40
Dependent Claim
113 words
A dual-lumen hemodialysis catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tue having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing member extending along the length of said septum and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 41
Dependent Claim
141 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a uniformly soft material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other int he axial direction, said septum comprising a pair of transversely spaced longitudinal webs formed as integral parts of said tube, and a reinforcing member comprising a flat strip of stiff material located longitudinally between said webs and bonded thereto so that said reinforcing member is completely enclosed by said webs of soft compatible material and is isolated from body fluids passing through said lumens, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube.
Claim 42
Dependent Claim
141 words
A dual-lumen catheter comprising: an elongated flexible cylindrical tube made of a uniformly soft material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other int he axial direction, said septum comprising a pair of transversely spaced longitudinal webs formed as integral parts of said tube, and a reinforcing member comprising a flat strip of stiff material located longitudinally between said webs and bonded thereto so that said reinforcing member is completely enclosed by said webs of soft compatible material and is isolated from body fluids passing through said lumens, said reinforcing member extending along the length of said tube and being made of a material which is substantially stiffer than the material of said tube.
Claim 43
Dependent Claim
163 words
A blood purification system comprising: a dialysis system for purifying a patient's blood; and a dual-lumen catheter coupled to said dialysis system comprising: an elongated cylindrical tube made of a soft, elastic material which is compatible with the human body, said tube having an internal septum extending along the length thereof to form first and second longitudinal lumens having distal openings which are offset from each other in the axial direction, wherein said dialysis system withdraws blood through said first lumen under a negative pressure and returns blood through said second lumen under a positive pressure, so that a pressure differential exists across said septum, and a diametral reinforcing member extending along the length of said tue and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 44
Dependent Claim
163 words
A blood purification system comprising: a dialysis system for purifying a patient's blood; and a dual-lumen catheter coupled to said dialysis system comprising: an elongated cylindrical tube made of a soft, elastic material which is compatible with the human body, said tube having an internal septum extending along the length thereof to form first and second longitudinal lumens having distal openings which are offset from each other in the axial direction, wherein said dialysis system withdraws blood through said first lumen under a negative pressure and returns blood through said second lumen under a positive pressure, so that a pressure differential exists across said septum, and a diametral reinforcing member extending along the length of said tue and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff reinforcing material is not exposed to blood passing through said lumens.
Claim 45
Dependent Claim
116 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing strip extending along the length of said septum, and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff material of said reinforcing strip is not exposed to body fluids passing through said lumens.
Claim 46
Dependent Claim
116 words
A dual-lumen catheter comprising: an elongated cylindrical tube made of a uniformly soft, elastic material which is compatible with the human body, said tube having an internal planar septum extending along the length thereof to form a pair of longitudinal lumens having distal openings which are offset from each other in the axial direction, and a diametral reinforcing strip extending along the length of said septum, and made of a material which is substantially stiffer than the material of said tube, said reinforcing member being completely embedded within said soft compatible material of said tube and septum so that said stiff material of said reinforcing strip is not exposed to body fluids passing through said lumens.
References Cited (Backward Citations)
US256590A
Cited
US390177A
Cited
CA50089A
Cited
US701075A
Cited
US1093538A
Cited
US998339A
Cited
US1045326A
Cited
US1290647A
Cited
FR592193A
Cited
US1922084A
Cited
FR821344A
Cited
US2230218A
Cited
US2234961A
Cited
US2175726A
Cited
US2409343A
Cited
US2473742A
Cited
US2474665A
Cited
US2625932A
Cited
US2564977A
Cited
US2590895A
Cited
GB688450A
Cited
US2716983A
Cited
DE935625C
Cited
US2819718A
Cited
US2930378A
Cited
US2936761A
Cited
US3042045A
Cited
GB1006219A
Cited
FR1285953A
Cited
US3556161A
Cited
US3175554A
Cited
US3359974A
Cited
US3324853A
Cited
US3314430A
Cited
US3324854A
Cited
US3435826A
Cited
US3331371A
Cited
US3459188A
Cited
US3467101A
Cited
US3394705A
Cited
FR1508959A
Cited
US3463152A
Cited
US3448739A
Cited
US3452756A
Cited
US3437088A
Cited
US3543758A
Cited
US3593713A
Cited
US3566874A
Cited
US3550591A
Cited
US3612050A
Cited
US3543759A
Cited
US3599620A
Cited
US3683908A
Cited
US3746003A
Cited
US3634924A
Cited
US3756234A
Cited
US3830234A
Cited
US3771527A
Cited
US3726281A
Cited
US3774605A
Cited
GB1419702A
Cited
US3823720A
Cited
US3799172A
Cited
DE2259865A1
Cited
US3804097A
Cited
US3885567A
Cited
US3875938A
Cited
US4016879A
Cited
US3828767A
Cited
US3896815A
Cited
US3978863A
Cited
FR2285148B1
Cited
FR2297640B1
Cited
US4004588A
Cited
GB1503469A
Cited
BE834211A
Cited
US4096860A
Cited
US4098275A
Cited
US4027668A
Cited
US4037599A
Cited
US4134402A
Cited
US4134402B1
Cited
US4144884A
Cited
US4057065A
Cited
US4100246A
Cited
USRE31873E
Cited
US4072146A
Cited
USRE31873F1
Cited
US4202332A
Cited
US4099528A
Cited
USD250349S
Cited
US4116068A
Cited
US4203436A
Cited
US4217895A
Cited
US4168703A
Cited
USD254444S
Cited
USD256617S
Cited
US4180068A
Cited
US4336636A
Cited
US4314555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-21 | 1996-12-21 | 1997-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-21 | 2000-12-21 | 2001-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-21 | 2004-12-21 | 2005-06-22 | $7700.00 | Window Closed / Lapsed |