US3912168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation lavage
Assignee: TELEDYNE IND Inc TELEDYNE AQUA
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Filing: 1975-01-30
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Granted: 1975-10-14
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Expires: 1995-01-30
Abstract
Abstract An irrigation lavage is useful, for example, in wound debridement. It serves to deliver pulses of fluid under pressure. It includes a housing that defines a chamber in which an electric motor is mounted so as to have a drive shaft projecting through one chamber wall. Projecting outwardly from that wall is a boss that defines a cylindrical cavity the axis of which coincides with that of the shaft. A roller is rotationally mounted on the shaft with its axis parallel to but offset from that of the shaft, the diameter of the roller being less than the diameter of the cavity. A resiliently-walled flexible tube runs between inlet and outlet openings in the boss and around the interior wall of the cavity with the double wall thickness of the tube being slightly greater than the minimum spacing between the interior wall and the roller. Overlying the cavity is a hinged door. The door is of transparent material so as to permit observation of the proper operation of the unit. The one chamber wall is constructed so as to form one end bell in which one end of the motor shaft is journaled. The housing accommodates a cooling fan and results in a compact structure. Coupled to one end of the flexible tube is a nozzle assembly that has a valve and valve operator manually adjustable to control the rate of fluid flow as well as serving selectively to cause cessation of that flow. The nozzle assembly is formed to include a barrel portion joined to a handgrip portion that permits ready operation by the fingers of the user.
Inventors
- 👤 Keith M Mullins
- 👤 David W Smith
- 👤 Thomas G Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:43
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0275; A61M3/0204; A61M3/0208; A61M3/022; B; B05; B05B; B05B9/00; B05B9/01; B05B9/03; B05B9/04; B05B9/0403; B05B9/042; B05B9/08; B05B9/085; B05B9/0872; F; F04; F04B; F04B43/00; F04B43/12; F04B43/123
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
195 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having continuous side walls and opposing end walls; an electric motor mounted in said chamber and having a drive shaft projecting through one of said end walls; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavity; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door, of transparent material, hinged at one side of said boss to close in overlying relationship to said cavity and in containment of said tube; and means for maintaining said door closed in said overlying relationship.
Claim 2
Dependent Claim
195 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having continuous side walls and opposing end walls; an electric motor mounted in said chamber and having a drive shaft projecting through one of said end walls; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavity; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door, of transparent material, hinged at one side of said boss to close in overlying relationship to said cavity and in containment of said tube; and means for maintaining said door closed in said overlying relationship.
Claim 3
Dependent Claim
226 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having integrally continuous side walls and opposing end walls, one of said end walls being attached to said side walls and the other of said end walls being integral with said sidewalls; an electric motor mounted in said chamber and having a drive shaft projecting through said one end wall, said one end wall constituting one end bell of said motor; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavitY; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door hinged at one side of said boss to close in overlying relationship to said cavity and in containment of said tube; and means for maintaining said door closed in said overlying relationship.
Claim 4
Dependent Claim
226 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having integrally continuous side walls and opposing end walls, one of said end walls being attached to said side walls and the other of said end walls being integral with said sidewalls; an electric motor mounted in said chamber and having a drive shaft projecting through said one end wall, said one end wall constituting one end bell of said motor; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavitY; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door hinged at one side of said boss to close in overlying relationship to said cavity and in containment of said tube; and means for maintaining said door closed in said overlying relationship.
Claim 5
Dependent Claim
38 words
An irrigation lavage as defined in claim 2 which further includes a fan mounted within said chamber, means for coupling said fan drivingly to said shaft, and means defining spaced inlet and outlet vent openings in said housing.
Claim 6
Dependent Claim
32 words
An irrigation lavage as defined in claim 2 in which said one end wall is supported exclusively from said motor, and said motor is resiliently mounted to one of said side walls.
Claim 7
Dependent Claim
221 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having continuous side walls and opposing end walls; an electric motor mounted in said chamber and having a drive shaft projecting through one of said end walls; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavity; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door hinged at one side of said boss to close in overlying relationship to said cavity; and a nozzle assembly coupled to the end of said tube extending from said outlet opening, said assembly including a valve and a valve operator manually adjustable to control the rate of fluid flow through said tube and selectively to cause cessation of said fluid flow.
Claim 8
Dependent Claim
221 words
An irrigation lavage comprising: a housing defining an enclosed motor-receptive chamber and having continuous side walls and opposing end walls; an electric motor mounted in said chamber and having a drive shaft projecting through one of said end walls; a boss projecting outwardly from the exterior of said one end wall and defining a generally cylindrical cavity the axis of which coincides with that of said shaft, said boss having inlet and outlet openings defined in spaced portions of its walls; a roller rotationally mounted on said shaft with the axis of said roller parallel to but offset from that of said shaft, the diameter of said roller being less than the diameter of said cavity; a resiliently-walled flexible tube running from said inlet opening to said outlet opening and around the interior wall of said cavity, the double wall thickness of said tube being slightly greater than the minimum spacing between said interior wall and said roller; a door hinged at one side of said boss to close in overlying relationship to said cavity; and a nozzle assembly coupled to the end of said tube extending from said outlet opening, said assembly including a valve and a valve operator manually adjustable to control the rate of fluid flow through said tube and selectively to cause cessation of said fluid flow.
Claim 9
Dependent Claim
66 words
An irrigation lavage as defined in claim 5 in which said assembly includes a barrel portion joined to a handgrip portion downwardly depending from one end of said barrel portion, in which said assembly is coupled to said end of said tube by a flexible conduit emerging from the bottom of said hand-grip portion, and in which said valve operator is disposed in said barrel portion.
Claim 10
Dependent Claim
41 words
An irrigation lavage as defined in claim 6 in which said assembly includes a continuous strap shaped to define both of said portions, and in which said valve operator includes a finger-operable cylinder accessible between opposing side edges of said strap.
References Cited (Backward Citations)
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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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |