US5807354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An implantable catheter having intermediate length section of greater flexibility than remaining lengths
Assignee: Individual
•
Filing: 1995-06-02
•
Granted: 1998-09-15
•
Expires: 2015-06-02
Abstract
Abstract The invention relates to a catheter, particularly a permanently implanted catheter, particularly a peritoneal-dialysis one, particularly for such peritoneal dialysis where a catheter tube is positioned normally to the surface area at the location of implantation, which catheter consists of a flexible catheter tube and at least one cuff, which is stable in its position on the catheter tube. The catheter tube provides a length segment (A) beginning next to the patient's skin, the general flexibility of the said length segment being greater than that of the remaining length section of the catheter, so that the catheter tube protruding from the patient's abdomen easily bends at the said length segment without collapsing (being squeezed). In a basic embodiment of the invention, the length segment (A) of the catheter consists of a main tube (1) and two mantle tubes (2, 3) fitted individually onto each length section of the said main tube so that a spacing exists between them, whose length corresponds to the said length segment (A), with reinforcing rings (4) being arranged on the main tube (1) in the region of the said length segment (A). The invention foresees several variant embodiments. Further, the invention relates to a novel use of a flexible tube as means for providing a length segment, whose flexibility in comparison to that of the remaining length section(s) of a tube assembly is intentionally accentuated.
Inventors
- 👤 Rajko Kenda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:16
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/0054
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
142 words
A permanently implanted implantable catherter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes reinforcing rings about said main tube, the reinforcing rings being held in a stationary manner on said main tube.
Claim 2
Dependent Claim
142 words
A permanently implanted implantable catherter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes reinforcing rings about said main tube, the reinforcing rings being held in a stationary manner on said main tube.
Claim 3
Dependent Claim
24 words
Catherter of claim 1, wherein each of said reinforcing rings are round in section, of identical configuration, and positioned equidistantly apart from each other.
Claim 4
Dependent Claim
131 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes a spiral element held stationary about said main tube.
Claim 5
Dependent Claim
131 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes a spiral element held stationary about said main tube.
Claim 6
Dependent Claim
12 words
Catheter of claim 3, wherein said spiral element is round in section.
Claim 7
Dependent Claim
130 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes a spiral element integral with said main tube.
Claim 8
Dependent Claim
130 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said flexible catheter tube includes, a main tube and two mantle tubes fitted onto said main tube so that a spacing exists between each of the two mantle tubes, said spacing defining said minor length section, wherein said main tube between said two mantle tubes includes a spiral element integral with said main tube.
Claim 9
Dependent Claim
118 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said catheter tube includes stationary reinforcing rings about its entire length, with the spacing of said reinforcing rings about said minor length section being greater than the spacing of the reinforcing rings positioned on the remaining length sections of said catheter tube.
Claim 10
Dependent Claim
118 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said catheter tube includes stationary reinforcing rings about its entire length, with the spacing of said reinforcing rings about said minor length section being greater than the spacing of the reinforcing rings positioned on the remaining length sections of said catheter tube.
Claim 11
Dependent Claim
126 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said catheter tube includes stationary reinforcing spiral elements about its entire length, with the pitch of said reinforcing spiral elements in the region of said minor length section being greater than that of said spiral elements at the remaining length sections, said spiral elements being bound to said catheter tube.
Claim 12
Dependent Claim
126 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said catheter tube includes stationary reinforcing spiral elements about its entire length, with the pitch of said reinforcing spiral elements in the region of said minor length section being greater than that of said spiral elements at the remaining length sections, said spiral elements being bound to said catheter tube.
Claim 13
Dependent Claim
14 words
Catheter of claim 7 wherein said spiral elements are integral with said catheter tube.
Claim 14
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube is a tubular bellows having semi-circular bends.
Claim 15
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube is a tubular bellows having semi-circular bends.
Claim 16
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube includes annular grooves whose cross-section is semi-circular.
Claim 17
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube includes annular grooves whose cross-section is semi-circular.
Claim 18
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube includes annular ribs whose cross-section is semi-circular.
Claim 19
Dependent Claim
91 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein said minor length section of said catheter tube includes annular ribs whose cross-section is semi-circular.
Claim 20
Dependent Claim
119 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein space on said minor length section of said catheter tube has an outer diameter smaller than an outer diameter of the remaining length sections of said catherter tube, and annular ribs protruding radially outward from the outer diameter of said minor length section.
Claim 21
Dependent Claim
119 words
A permanently implantable catheter comprising a flexible catheter tube having an intermediate minor length section of a greater general flexibility in comparison to that of the remaining length sections of the catheter tube, a retaining element on said catheter tube for positioning within the patient's body and arranged at a distance from said minor length section such that said minor length section is adapted to be placed adjacent the patient's skin outside the patient's body, wherein space on said minor length section of said catheter tube has an outer diameter smaller than an outer diameter of the remaining length sections of said catherter tube, and annular ribs protruding radially outward from the outer diameter of said minor length section.
References Cited (Backward Citations)
DE321666C
Cited
US3796211A
Cited
US4564361A
Cited
US4516972A
Cited
US4852564A
Cited
US5125909A
Cited
US5363882A
Cited
US5156597A
Cited
US5386826A
Cited
US5314418A
Cited
EP0588546A2
Cited
US5484424A
Cited
US5643226A
Cited
US5409469A
Cited
US5662616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-14 | 2002-03-16 | 2002-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-14 | 2006-03-16 | 2006-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-14 | 2010-03-16 | 2010-09-15 | $7700.00 | Window Closed / Lapsed |