WO1998000191B1 - A variably inflatable medical device - Google Patents
A variably inflatable medical deviceInfo
- Publication number
- WO1998000191B1 WO1998000191B1 PCT/US1997/011449 US9711449W WO9800191B1 WO 1998000191 B1 WO1998000191 B1 WO 1998000191B1 US 9711449 W US9711449 W US 9711449W WO 9800191 B1 WO9800191 B1 WO 9800191B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- guide
- tube
- cavity
- introducer
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims abstract 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 claims 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 3
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 239000003570 air Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 239000000499 gel Substances 0.000 claims 1
- 235000015110 jellies Nutrition 0.000 claims 1
- 239000000314 lubricant Substances 0.000 claims 1
- 210000000056 organ Anatomy 0.000 claims 1
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 210000001635 urinary tract Anatomy 0.000 claims 1
- 230000003187 abdominal effect Effects 0.000 abstract 1
- 244000052769 pathogen Species 0.000 abstract 1
- 239000008223 sterile water Substances 0.000 abstract 1
Abstract
A non-contaminating surgical introducer/dilator includes a variably inflatable tubular balloon membrane. The leading section of the membrane is circumferentially folded back over, forming a double walled tubular membrane. The open end of the tubular membrane is fixed to the stem of the guide. The stem of the guide is placed over the body cavity while the guide is slid over the introducer tube, thereby forcing the membrane through the guide and into the body cavity while simultaneously inverting the membrane over itself. Contact between the introducer tube and the abdominal/body cavity is inhibited and the passive transportation of pathogens into the cavity concomitantly prevented. The inflator tube is used to variably inflate the tubular balloon with sterile water or gas via a syringe/pump device to the desired pressure. Various methods of making and using the introducer/dilator of the present invention are also disclosed.
Claims
1. A variably inflatable device for insertion into a cavity, the device comprising:
a guide having a central lumen, and a fluid inlet:
a membrane attached to said guide defining a closed tube, an open tube and a
double walled mid section spanning therebetween, said open tube in fluid communication
with the cavity, said closed tube communicating with said air inlet and configured to be
variably inflated;
an introducer disposed within said lumen of said guide to communicate with said
membrane and urge said membrane into the cavity in use:
a retaining device frictionally received over a portion of said guide to secure said
membrane to said guide.
2. The device of claim 1. wherein said membrane is formed of a modified
polytetrafluoroethylene (PTFE) resin.
3. The device of claim 2. wherein said membrane comprises a skived film from a
sintered PTFE billet.
4. The device of claim 1 , wherein said membrane has a thickness of between about
0.0005 and about 0.0025 in.
5. The device of claim 4 wherein said membrane comprises heat sealed edges
forming an elongated tube.
- 22 -
6. The device of claim 1 , wherein said tube is elongated on the order of between
about 100 and 150 percent elongation.
7. The device of claim 1 , wherein said closed tube includes at least one opening
through a surface of said closed tube.
8. The device of claim 1 , wherein said open tube includes at least one opening
through a surface of said open tube.
9. The device of claim 1 , wherein the cavity is a urinary tract.
10. The device of claim 1 , wherein the cavity is an organ.
1 1. A variably inflatable device for insertion into a cavity, the device comprising:
a guide having a lumen; and,
a membrane attached to said guide defining a closed tube, an open tube and a
double walled mid-section spanning therebetween, said open tube in fluid communication
with the cavity and configured to be variably inflated.
12. The device of claim 1 1 further comprising an introducer disposed within said
lumen of said guide to communicate with said membrane and urge said membrane into the cavity
in use.
13. The device of claim 1 1 further comprising a retaining device frictionally received over a portion of said guide to secure said membrane to said guide.
14. The device of claim 1 1 further comprising a means for inserting fluid into said closed tube.
15. The device of claim 14, wherein said means for inserting is an inlet within said
guide, said inlet communicating with said closed tube to insert at least one of air, gas, water,
chemicals, gels, jellies and lubricants.
16. The device of claim 1 1 wherein said membrane is tensilized by elongating said membrane in the range of about 25 percent to about 300 percent.
17. The device of claim 11 wherein said closed tube, said open tube and said
double walled mid-section are formed from a single substantially tubular shaped membrane.
18. The device of claim 1 1 wherein said membrane has sufficient lubricity to
smoothly slide out of and over a portion of said introducer.
- 24 -
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU35878/97A AU3587897A (en) | 1996-07-01 | 1997-07-01 | A variably inflatable medical device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/676,581 | 1996-07-01 | ||
| US08/676,581 US5676688A (en) | 1995-02-06 | 1996-07-01 | Variably inflatable medical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998000191A1 WO1998000191A1 (en) | 1998-01-08 |
| WO1998000191B1 true WO1998000191B1 (en) | 1998-02-26 |
Family
ID=24715097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/011449 WO1998000191A1 (en) | 1996-07-01 | 1997-07-01 | A variably inflatable medical device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5676688A (en) |
| AU (1) | AU3587897A (en) |
| WO (1) | WO1998000191A1 (en) |
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-
1996
- 1996-07-01 US US08/676,581 patent/US5676688A/en not_active Expired - Fee Related
-
1997
- 1997-07-01 WO PCT/US1997/011449 patent/WO1998000191A1/en active Application Filing
- 1997-07-01 AU AU35878/97A patent/AU3587897A/en not_active Abandoned
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