US5168593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for cleaning endoscopes
Assignee: CR Bard Inc
•
Filing: 1991-11-01
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Granted: 1992-12-08
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Expires: 2011-11-01
Abstract
Abstract A cleaning tool is disclosed for cleaning hard-to-reach and sharply curved passages, particularly those of endoscopes. The tool includes a brush connected to a spring. The spring is connected to a length of flexible tubing. A stiffening member is disposed within the flexible tubing. A fluid passage is provided within the tubing for delivering cleaning fluid or rinsing fluid to the interior of the object being cleaned.
Inventors
- 👤 Alan C. Poje
- 👤 John M. Dombrosky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:51
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/12; A61B1/121; A61B1/122; A46; A46B; A46B3/00; A46B3/18; A46B5/00; A46B5/06; A61B90/00; A61B90/70; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/045; A61B2090/701; A61M; A61M25/00; A61M2025/0019
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
48 words
A tool for cleaning passages of endoscopes or the like comprising: a cleaning member; a length of flexible plastic tubing; a spring connected to the cleaning member and extending from the tubing; a stiffening member disposed within and extending a substantial distance along the length of the tubing.
Claim 2
Dependent Claim
48 words
A tool for cleaning passages of endoscopes or the like comprising: a cleaning member; a length of flexible plastic tubing; a spring connected to the cleaning member and extending from the tubing; a stiffening member disposed within and extending a substantial distance along the length of the tubing.
Claim 3
Dependent Claim
47 words
The tool of claim 1 wherein the stiffening member is sized smaller in cross section than the interior of the tubing to provide a fluid passage between the stiffening member and the tubing and wherein the tool includes a fluid inlet and outlet communicating with the passage.
Claim 4
Dependent Claim
17 words
The tool of claim 2 wherein the stiffening member extends essentially the full length of the tubing.
Claim 5
Dependent Claim
14 words
The tool of claim 3 wherein the stiffening member is connected to the tubing.
Claim 6
Dependent Claim
14 words
The tool of claim 3 wherein the stiffening member is secured to the spring.
Claim 7
Dependent Claim
15 words
The tool of claim 3 wherein the stiffening member and the spring form one piece.
Claim 8
Dependent Claim
12 words
The tool of claim 3 wherein the stiffening member is a wire.
Claim 9
Dependent Claim
12 words
The tool of claim 3 wherein the cleaning member is a brush.
Claim 10
Dependent Claim
11 words
The tool of claim 8 wherein the brush has nylon bristles.
Claim 11
Dependent Claim
15 words
The tool of claim 8 wherein the brush includes a stem coupled to the spring.
Claim 12
Dependent Claim
21 words
The tool of claim 2 wherein the spring is a coil spring having a hollow interior communicating with the fluid passage.
Claim 13
Dependent Claim
33 words
The tool of claim 8 wherein the cleaning member includes a stem formed by twisted wires, and wherein the twisted wires engage with coils of the coil spring to form a mechanical connection.
Claim 14
Dependent Claim
14 words
The tool of claim 11 wherein adjacent coils of the spring are spaced longitudinally.
Claim 15
Dependent Claim
34 words
The tool of claim 11 wherein the coil spring has an axially tapered portion in which the diameter of the interior passage and the outside diameter of the spring increases in a distal direction.
Claim 16
Dependent Claim
18 words
The tool of claim 1 wherein a luer-type fitting is joined to a proximal end of the tubing.
Claim 17
Dependent Claim
15 words
The tool of claim 15 wherein the stiffening member is connected to the luer-type fitting.
Claim 18
Dependent Claim
140 words
A tool for cleaning endoscopes or the like comprising: an elongated flexible plastic tube having a fluid inlet opening adjacent a proximal end and an outlet opening adjacent a distal end; a stainless steel coil spring connected to and extending from a distal end of the tube; a cleaning member having a stem connected to a distal end of the spring; and a stiffening member disposed within the tube and extending substantially the length thereof, the stiffening member being sized smaller in cross section than the interior of the tube to provide a fluid passage between the stiffening member and the tube; whereby fluid entering adjacent the proximal end and exiting adjacent the distal end of the tube enters the interior of the coil spring and exits the coil spring adjacent the cleaning member through spaces between the spring coils.
Claim 19
Dependent Claim
140 words
A tool for cleaning endoscopes or the like comprising: an elongated flexible plastic tube having a fluid inlet opening adjacent a proximal end and an outlet opening adjacent a distal end; a stainless steel coil spring connected to and extending from a distal end of the tube; a cleaning member having a stem connected to a distal end of the spring; and a stiffening member disposed within the tube and extending substantially the length thereof, the stiffening member being sized smaller in cross section than the interior of the tube to provide a fluid passage between the stiffening member and the tube; whereby fluid entering adjacent the proximal end and exiting adjacent the distal end of the tube enters the interior of the coil spring and exits the coil spring adjacent the cleaning member through spaces between the spring coils.
Claim 20
Dependent Claim
12 words
The tool of claim 17 wherein the cleaning member is a brush.
References Cited (Backward Citations)
US1154369A
Cited
US1421529A
Cited
US2608421A
Cited
US2739585A
Cited
US3283353A
Cited
US5003657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |