Patent US5308325A successfully refreshed from Google Patents.
US5308325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retention balloon for percutaneous catheter
Assignee: Corpak Medsystems Inc
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Filing: 1991-01-28
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Granted: 1994-05-03
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Expires: 2011-01-28
Abstract
Abstract An improved construction for an expandable and contractible retention member, such as a balloon, for body access tubes, to retain a distal open end of the tube against an inner body cavity wall of the patient. The balloon is secured to only the inner and outer peripheral edges of the distal open end of the tube by a sleeve. The sleeve has both an outer wall and an inner wall which receives, respectively, the outer and inner walls of the tube. The balloon includes an outer wall and an inner wall which defines an inflation chamber. The inflation chamber extends beyond the distal open end of the tube so that no portion of the tube passes through the chamber. The balloon includes an axial opening to permit passage of fluid out of the tube.
Inventors
- 👤 David G. Quinn
- 👤 Erik Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1029; A61J; A61J15/00; A61J15/0015; A61J15/0026; A61J15/003; A61J15/0034; A61J15/0038; A61J15/0042; A61M25/01; A61M25/02; A61M25/04; A61M25/1034; A61M2025/1043; A61M2025/1065
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
193 words
In a single body access tube having an inner surface and an outer surface defining a fluid lumen and an inflation lumen, the tube including an inflatable retention member carried near a distal open end of the tube, the member having an inflation/retention chamber surrounding the outer surface of the tube, the member circumferentially secured to the outer surface of the tube, the improvement comprising: the member being circumferentially secured to the distal open end of the tube and to both the inner surface and the outer surface of the tube, the member having an axial opening communicating with the fluid lumen of the tube, the inflation chamber of the member being substantially foam filled and extending beyond the distal open end of the tube so that no portion of the tube passes through the chamber; such that when inflated, the member projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the tube, when deflated, the member collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the tube.
Claim 2
Dependent Claim
193 words
In a single body access tube having an inner surface and an outer surface defining a fluid lumen and an inflation lumen, the tube including an inflatable retention member carried near a distal open end of the tube, the member having an inflation/retention chamber surrounding the outer surface of the tube, the member circumferentially secured to the outer surface of the tube, the improvement comprising: the member being circumferentially secured to the distal open end of the tube and to both the inner surface and the outer surface of the tube, the member having an axial opening communicating with the fluid lumen of the tube, the inflation chamber of the member being substantially foam filled and extending beyond the distal open end of the tube so that no portion of the tube passes through the chamber; such that when inflated, the member projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the tube, when deflated, the member collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the tube.
Claim 3
Dependent Claim
204 words
In a single body access tube having an inner surface and an outer surface defining a fluid lumen and an inflation lumen, the tube including an inflatable retention member carried near a distal open end of the tube, the member having an inflation/retention chamber surrounding the outer surface of the tube, the member circumferentially secured to the outer surface of the tube, the improvement comprising: the member being circumferentially secured to the distal open end of the tube and to both the inner surface and the outer surface of the tube, the member having an axial opening communicating with the fluid lumen of the tube, the inflation chamber of the member being substantially foam filled wherein the foam includes a polyurethane foam, and further wherein the chamber extends beyond the distal open end of the tube so that no portion of the tube passes through the chamber; such that when inflated, the member projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the tube, when deflated, the member collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the tube.
Claim 4
Dependent Claim
204 words
In a single body access tube having an inner surface and an outer surface defining a fluid lumen and an inflation lumen, the tube including an inflatable retention member carried near a distal open end of the tube, the member having an inflation/retention chamber surrounding the outer surface of the tube, the member circumferentially secured to the outer surface of the tube, the improvement comprising: the member being circumferentially secured to the distal open end of the tube and to both the inner surface and the outer surface of the tube, the member having an axial opening communicating with the fluid lumen of the tube, the inflation chamber of the member being substantially foam filled wherein the foam includes a polyurethane foam, and further wherein the chamber extends beyond the distal open end of the tube so that no portion of the tube passes through the chamber; such that when inflated, the member projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the tube, when deflated, the member collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the tube.
Claim 5
Dependent Claim
170 words
A catheter having a single tube and adapted for retention within a body cavity, organ or vessel, comprising: an inner surface and an outer surface defining a fluid lumen and an inflation lumen; a distal end of the tube being open; an inflatable retention member circumferentially secured to the open distal end and to both the inner surface and outer surface of the catheter, the member having an opening communicating with the fluid lumen of the catheter; and, the member having an inflation chamber extending beyond the distal open end of the catheter so that no portion of the catheter passes through the chamber and wherein the inflation chamber is substantially foam filled, such that the member, when inflated, projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the catheter, the member, when deflated, collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the catheter.
Claim 6
Dependent Claim
170 words
A catheter having a single tube and adapted for retention within a body cavity, organ or vessel, comprising: an inner surface and an outer surface defining a fluid lumen and an inflation lumen; a distal end of the tube being open; an inflatable retention member circumferentially secured to the open distal end and to both the inner surface and outer surface of the catheter, the member having an opening communicating with the fluid lumen of the catheter; and, the member having an inflation chamber extending beyond the distal open end of the catheter so that no portion of the catheter passes through the chamber and wherein the inflation chamber is substantially foam filled, such that the member, when inflated, projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the catheter, the member, when deflated, collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the catheter.
Claim 7
Dependent Claim
177 words
A catheter having a single tube and adapted for retention within a body cavity, organ or vessel, comprising: an inner surface and an outer surface defining a fluid lumen and an inflation lumen; a distal end of the tube being open; an inflatable retention member circumferentially secured to the open distal end and to both the inner surface and outer surface of the catheter, the member having an opening communicating with the fluid lumen of the catheter; and, the member having an inflation chamber extending beyond the distal open end of the catheter so that no portion of the catheter passes through the chamber and wherein the inflation chamber is substantially foam filled and the foam includes a polyurethane foam, such that the member, when inflated, projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the catheter, the member, when deflated, collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the catheter.
Claim 8
Dependent Claim
177 words
A catheter having a single tube and adapted for retention within a body cavity, organ or vessel, comprising: an inner surface and an outer surface defining a fluid lumen and an inflation lumen; a distal end of the tube being open; an inflatable retention member circumferentially secured to the open distal end and to both the inner surface and outer surface of the catheter, the member having an opening communicating with the fluid lumen of the catheter; and, the member having an inflation chamber extending beyond the distal open end of the catheter so that no portion of the catheter passes through the chamber and wherein the inflation chamber is substantially foam filled and the foam includes a polyurethane foam, such that the member, when inflated, projects beyond the distal end of the tube and assumes an outer configuration having an outer diameter greater than the outer diameter of the catheter, the member, when deflated, collapses upon itself and assumes an outer collapsed configuration having an outer diameter no greater than the outer diameter of the catheter.
Claim 9
Independent Claim
184 words
A method of forming an inflatable retention member to be carried on a distal open end of a catheter, the catheter having a fluid lumen and an inflation lumen, the method comprising the steps of: forming a proximal portion of the member, the proximal portion having a sleeve with a small diameter mating end to receive and contact an outer surface of the distal end of the catheter and the sleeve of the proximal portion having a large diameter mating end; forming a distal portion of the member, the distal portion having a large diameter mating end for circumferentially mating with the large diameter mating end of the proximal portion, the distal portion having a core coaxial with the sleeve, the core being insertable within only the fluid lumen to contact an inner surface of the catheter; bonding the sleeve to the outer surface of the catheter and the core to the inner surface of the catheter; inserting between the proximal and distal portions a compressible material; and circumferentially bonding together the large diameter mating ends of the proximal portion and the distal portion.
Claim 10
Independent Claim
184 words
A method of forming an inflatable retention member to be carried on a distal open end of a catheter, the catheter having a fluid lumen and an inflation lumen, the method comprising the steps of: forming a proximal portion of the member, the proximal portion having a sleeve with a small diameter mating end to receive and contact an outer surface of the distal end of the catheter and the sleeve of the proximal portion having a large diameter mating end; forming a distal portion of the member, the distal portion having a large diameter mating end for circumferentially mating with the large diameter mating end of the proximal portion, the distal portion having a core coaxial with the sleeve, the core being insertable within only the fluid lumen to contact an inner surface of the catheter; bonding the sleeve to the outer surface of the catheter and the core to the inner surface of the catheter; inserting between the proximal and distal portions a compressible material; and circumferentially bonding together the large diameter mating ends of the proximal portion and the distal portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-02 | 1997-11-01 | 1998-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-02 | 2001-11-01 | 2002-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-02 | 2005-11-01 | 2006-05-03 | $7700.00 | Window Closed / Lapsed |