US3589356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for everting and extraverting flexible tubing into a body cavity
Assignee: Individual
•
Filing: 1969-09-04
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Granted: 1971-06-29
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Expires: 1989-09-04
Abstract
Abstract A system and method for lining an internal body cavity with thin-walled flexible tubing is described. One end of the tubing is closed and the other is sealed to a fluid pressure casing. The closed end of the tubing is initially disposed within the casing and a tension member passing through the casing is fixed to the reentrant tubing end. Instrumentation, radiation sources, etc. are transported by the tension member as the closed end everts through the tubing within the cavity. The everted tubing is retained within the cavity for a finite time and the initially closed end of the everted tubing may be opened. It is also disclosed that the tubing may be of assimilable material and/or have a coating which affects, or is affected by, the cavity walls or fluids. The tubing is also described as a vehicle for retrieving cavity samples. Embodiments of suitable apparatus are described.
Inventors
- 👤 Daniel Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:13
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/04; A61B1/00; A61B1/00147; A61B1/00151; A61B1/00163; A61B1/00165; A61B46/00; A61B46/10; A61B46/13; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0119; A61M31/00; A61B17/00; A61B17/00234; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3431; A61B2017/00004; A61B90/00; A61B90/40; A61M25/0043; A61M2025/0062
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
100 words
The method of lining a collapsed internal body cavity with thin-walled flexible tubing in medical procedures including the steps of providing a length of thin-walled tubing, initially closing one end of the tubing and distending the other end of tubing across a fluid pressure source, intraverting the closed end of the tubing into the pressure source to provide a reentrant tubing portion therein, everting the reentrant portion of the tubing into the cavity, retaining the everted portion of the tubing within the cavity for a finite time, and opening the initially closed end of the extraverted tubing within the cavity.
Claim 2
Independent Claim
100 words
The method of lining a collapsed internal body cavity with thin-walled flexible tubing in medical procedures including the steps of providing a length of thin-walled tubing, initially closing one end of the tubing and distending the other end of tubing across a fluid pressure source, intraverting the closed end of the tubing into the pressure source to provide a reentrant tubing portion therein, everting the reentrant portion of the tubing into the cavity, retaining the everted portion of the tubing within the cavity for a finite time, and opening the initially closed end of the extraverted tubing within the cavity.
Claim 3
Dependent Claim
42 words
The method of claim 1 wherein the body cavity contains body fluids and the everted tubing includes assimilable material and in which the everted tubing is retained in the space for a time sufficient for body fluids to affect the assimilable material.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein the everted tubing comprises porous absorbent material and the everted tubing is retained within the space for a time sufficient for said material to absorb fluids from said space.
Claim 5
Dependent Claim
33 words
The method of claim 1 wherein the everted tubing comprises a microporous flexible material and which includes the additional step of passing fluids therethrough during the step of retaining the everted tubing cavity.
Claim 6
Dependent Claim
34 words
The method of claim 1 including the step of transporting an elongated probe means through said extraverted tubing within said cavity, and removing said probe means therefrom prior to retrogressively withdrawing the extraverted tubing.
Claim 7
Dependent Claim
37 words
In the method of claim 1 wherein the thin-walled tubing is expendable and comprises an assimilable material, the added step of separating the tubing from the fluid pressure source and abandoning the extraverted tubing within the cavity.
Claim 8
Dependent Claim
45 words
The method of claim 1 which includes the added preparatory step of modifying the thin-walled tubing to carry radiation emitting material, whereby the distended walls of the space are subjected to radiation during the step of retaining the everted sleeve therewithin for a finite time.
Claim 9
Dependent Claim
22 words
The method of claim 7 wherein the preparatory step of modifying the eversible tubing comprises supportiNg thereon particulate solid radiation emitting material.
Claim 10
Dependent Claim
22 words
The method of claim 8 wherein the preparatory step comprises compounding particulate solid radiation emitting material into the walls of the tubing.
Claim 11
Dependent Claim
20 words
The method of claim 8 wherein the preparatory step comprises coating a surface of the tubing with radiation emitting material.
Claim 12
Dependent Claim
15 words
The method of claim 1 wherein displacement fluid is provided which comprises radiation emitting material.
Claim 13
Dependent Claim
27 words
The method of claim 1 wherein said closed end is initially pressuretight and includes means for opening the closed end when the tubing has intruded the cavity.
Claim 14
Dependent Claim
30 words
The method of claim 1 which includes a tensile retrieval means fixed to the closed end of the tubing and extending axially of said first and eversible lengths of tubing.
Claim 15
Dependent Claim
25 words
The method of claim 1 in which at least a portion of the extravertable tubing comprises a material which is identifiably affected by body fluids.
Claim 16
Dependent Claim
15 words
The method of claim 1 wherein the tubing is expendable and comprises an assimilable material.
Claim 17
Dependent Claim
29 words
The method as in claim 1 in which said extravertable tubing comprises a thin-walled plastic tubing having its inside surface at least partially coated with a tacky nondrying adhesive.
Claim 18
Dependent Claim
28 words
The method of claim 1 wherein said extravertable tubing has on its internal surface porous absorbent material adapted to retain body fluids with which it contacts when extraverted.
Claim 19
Dependent Claim
18 words
The method of claim 1 in which the tubing includes particulate solid material supported by the wall thereof.
Claim 20
Dependent Claim
13 words
The method of claim 18 in which said particulate solid material emits radiation.
Claim 21
Dependent Claim
15 words
The method of claim 18 in which said particulate solid material is an absorbent material.
References Cited (Backward Citations)
DE215350C
Cited
US805851A
Cited
DE415482C
Cited
DE454642C
Cited
US2513527A
Cited
US2794758A
Cited
US3230129A
Cited
US3132062A
Cited
US3168092A
Cited
US3178732A
Cited
US3224432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |