US4721123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter reprocessing system
Assignee: Minntech Corp
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Filing: 1986-10-23
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Granted: 1988-01-26
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Expires: 2006-10-23
Abstract
Abstract A machine for reprocessing catheters of the type having a double lumen, one of which leads to a balloon. A used catheter is sealed within a cassette which in turn is connected by multiple ports to a cleaning side of the machine. Cleaning solution is flushed through the inside and outside of the catheter. The balloon integrity is tested by adding step wise volume additions and monitoring the pressure. The data generated is compared to a standard curve for new catheters. The cleaned, sterile catheter is then rinsed to remove all traces of sterilant. Sterile saline is alternatively flushed through the cassette and catheter. The balloon is again tested for leaks. No portion of the rinse side of the machine requires sterilizing except for the disposable tubing set and saline source. The rinsed, clean and sterile catheter is removed from the cassette for reuse.
Inventors
- 👤 Louis C. Cosentino
- 👤 Daniel A. Baker
- 👤 Edward J. Mikolajczyk
- 👤 Russel L. Hoeker
- 👤 Jo-Ann B. Maltais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/002; A61M25/10; A61M2025/1043; A61M2025/1077
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
78 words
A system for reprocessing catheters having a catheter hub, body, at least two lumens and a balloon; said system comprising: (a) cleaning means for supplying catheter cleaning solution to the lumens and outside of a catheter; (b) balloon test means for testing the balloon strength and filling volume and for displaying strength and volume date; (c) rinsing means for removing said cleaning solution from the catheter; and (d) means for monitoring the condition of the catheter during reprocessing.
Claim 2
Independent Claim
78 words
A system for reprocessing catheters having a catheter hub, body, at least two lumens and a balloon; said system comprising: (a) cleaning means for supplying catheter cleaning solution to the lumens and outside of a catheter; (b) balloon test means for testing the balloon strength and filling volume and for displaying strength and volume date; (c) rinsing means for removing said cleaning solution from the catheter; and (d) means for monitoring the condition of the catheter during reprocessing.
Claim 3
Dependent Claim
16 words
The system of claim 1 wherein said monitoring means measures indicia of usability of said catheter.
Claim 4
Dependent Claim
37 words
The system of claim 2 further including means responsive to said monitoring means for selectively controlling the sequencing of the reprocessing procedures in response to the condition of said catheter to prohibit the use of defective catheters.
Claim 5
Dependent Claim
22 words
The system of claim 3 further comprising means for storing predetermined criteria which a catheter must meet in order to be usable.
Claim 6
Dependent Claim
35 words
The system of claim 4 wherein said controlling means compares indicia of usability of said catheter to balloon strength and volume data and inhibits further reprocessing if said data does not meet said predetermined criteria.
Claim 7
Dependent Claim
20 words
The system of claim 1 wherein said balloon test means measures the volume of said balloon at preselected, varied pressures.
Claim 8
Dependent Claim
77 words
The system of claim 1 further including storage means for storing a catheter surrounded with cleaning solution, said means including a catheter case into which a catheter is insertable, said case including a plurality of ports constructed and arranged such that access to the exterior and interior of the catheter is possible form the outside of the case, each of said ports being normally closed until engaged with said cleaning means, balloon test means or rinsing means.
Claim 9
Dependent Claim
20 words
The system of claim 7 wherein said case further includes means for indicating whether said case is sealed under pressure.
Claim 10
Dependent Claim
130 words
A cleaner for reprocessing catheters of the type having a catheter hub, body, lumens and a balloon, said cleaner comprising: (a) cleaning means for supplying catheter cleaning solution to the lumens and outside of a catheter; (b) balloon test means for testing the balloon strength and filling volume and for displaying strength and volume data; (c) storage means for storing a catheter surrounded with cleaning solution; (d) rinsing means for removing all traces of cleaning solution from the catheter; (e) a computer including a memory, said computer having means for generating commands in accordance with programmed instructions for directing said cleaning means, balloon test means and rinse means for directing catheter reprocessing and for displaying data; and (f) a control console coupled to said computer for inserting programmed instructions therein.
Claim 11
Dependent Claim
130 words
A cleaner for reprocessing catheters of the type having a catheter hub, body, lumens and a balloon, said cleaner comprising: (a) cleaning means for supplying catheter cleaning solution to the lumens and outside of a catheter; (b) balloon test means for testing the balloon strength and filling volume and for displaying strength and volume data; (c) storage means for storing a catheter surrounded with cleaning solution; (d) rinsing means for removing all traces of cleaning solution from the catheter; (e) a computer including a memory, said computer having means for generating commands in accordance with programmed instructions for directing said cleaning means, balloon test means and rinse means for directing catheter reprocessing and for displaying data; and (f) a control console coupled to said computer for inserting programmed instructions therein.
Claim 12
Independent Claim
134 words
A system for reprocessing catheters having a catheter hub, body at least two lumens and a balloon, said system comprising: (a) cleaning means for supplying catheter cleaning solution through the lumens and around the exterior of a catheter; (b) balloon test means for testing the balloon volume at preselected pressures and comparing such volume and pressure data to the specification for unused catheters; (c) rinsing means for removing said cleaning solution from the catheter and maintaining the sterility of the cleaned catheter during rinsing, said rinsing means further including means for testing the integrity of said balloon by applying fluid under pressure to said balloon until either a preselected pressure is reached or a limit switch is contacted to stop fluid flow; and (d) means for monitoring the condition of the catheter during reprocessing.
Claim 13
Independent Claim
134 words
A system for reprocessing catheters having a catheter hub, body at least two lumens and a balloon, said system comprising: (a) cleaning means for supplying catheter cleaning solution through the lumens and around the exterior of a catheter; (b) balloon test means for testing the balloon volume at preselected pressures and comparing such volume and pressure data to the specification for unused catheters; (c) rinsing means for removing said cleaning solution from the catheter and maintaining the sterility of the cleaned catheter during rinsing, said rinsing means further including means for testing the integrity of said balloon by applying fluid under pressure to said balloon until either a preselected pressure is reached or a limit switch is contacted to stop fluid flow; and (d) means for monitoring the condition of the catheter during reprocessing.
Claim 14
Dependent Claim
16 words
The system of claim 10 wherein said monitoring means measures indicia of usability of said catheter.
Claim 15
Dependent Claim
37 words
The system of claim 11 further including means responsive to said monitoring means for selectively controlling the sequencing of the reprocessing procedures in response to the condition of said catheter to prohibit the use of defective catheters.
Claim 16
Dependent Claim
22 words
The system of claim 12 further comprising means for storing predetermined criteria which a catheter must meet in order to be usable.
Claim 17
Dependent Claim
35 words
The system of claim 13 wherein said controlling means compares indicia of usability of said catheter to balloon strength and volume data and inhibits further reprocessing if said data does not meet said predetermined criteria.
Claim 18
Dependent Claim
80 words
The system of claim 14 further including storage means for storing a catheter surrounded with cleaning solution, said means including a catheter case into which a catheter is insertable, said case including a plurality of ports, said ports being constructed and arranged such that access to the exterior and interior of the catheter is possible from the outside of the case, each of said ports being normally closed until engaged with said cleaning means, balloon test means or rinsing means.
Claim 19
Dependent Claim
20 words
The system of claim 15 wherein said case further includes means for indicating whether said case is sealed under pressure.
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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) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |