US3745989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for locating veins in living bodies
Assignee: Individual
•
Filing: 1972-04-26
•
Granted: 1973-07-17
•
Expires: 1992-04-26
Abstract
Abstract A casing is provided with an elongated sensor rod and a marking rod mounted for axial reciprocation by a motor driven cam through compression springs so that the sensor is moved outwardly of the casing by a constant force with the end of the sensor engaging a living body so that the distance of outward movement depends on the resistance of the body, a latch release lug extends from the sensor to release a spring urged marking rod for outward movement to mark the surface of the body in response to movement of the sensor rod beyond a given position in response to lessened resistance to outward movement of the sensor occasioned by a vein positioned beneath the sensor.
Inventors
- 👤 S Pinna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0048; A61B5/0053; A61B5/48; A61B5/4887; A61B5/489
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
124 words
A device for locating veins in a living body comprising a casing, a sensor member mounted for movement outwardly of said casing adjacent one end of said casing, force exerting means for exerting a predetermined force on said sensor member urging said sensor member outwardly from said casing a given distance against the resistance of a living body with which the sensor is engaged when there is no vein beneath the sensor but will move outwardly a greater distance when there is a vein beneath the sensor and position identifying means responsive to movement of said sensor said greater distance to provide an indication and identification of such movement and position for apprising the user of the presence of a vein beneath the sensor.
Claim 2
Independent Claim
124 words
A device for locating veins in a living body comprising a casing, a sensor member mounted for movement outwardly of said casing adjacent one end of said casing, force exerting means for exerting a predetermined force on said sensor member urging said sensor member outwardly from said casing a given distance against the resistance of a living body with which the sensor is engaged when there is no vein beneath the sensor but will move outwardly a greater distance when there is a vein beneath the sensor and position identifying means responsive to movement of said sensor said greater distance to provide an indication and identification of such movement and position for apprising the user of the presence of a vein beneath the sensor.
Claim 3
Dependent Claim
13 words
The invention of claim 1 wherein said sensor member comprises an elongated rod.
Claim 4
Dependent Claim
47 words
The invention of claim 2 wherein said position identifying means comprises marking means for placing a visible mark on said living body at a location adjacent the location at which the elongated rod engages said body in response to movement of said elongated rod said greater distance.
Claim 5
Dependent Claim
24 words
The invention of claim 3 wherein said force exerting means includes a motor driven cam engaging force transmission means connected to said elongated rod.
Claim 6
Dependent Claim
32 words
The invenTion of claim 4 wherein said force transmission means includes a cam follower plate mounted for reciprocation and a compression spring extending between said cam follower plate and said elongated rod.
Claim 7
Dependent Claim
98 words
The invention of claim 5 wherein said marking means comprises a marking element normally retained in a retracted position in said casing, marking spring means urging said marking element in a direction outwardly of said casing toward an extended position, latch means for holding said marking element in said retracted position and additionally including a latch release member carried by said elongated rod and engageable with said latch upon movement of said elongated rod said greater distance to consequently permit said marking means to move outwardly to its extended position to consequently place a mark on said body.
Claim 8
Dependent Claim
23 words
The invention of claim 6 additionally including a return spring engaging said elongated rod for urging said elongated rod inwardly of said casing.
Claim 9
Dependent Claim
24 words
The invention of claim 7 additionally including a marker return spring engaging said marking member and urging said marking member toward its retracted position.
Claim 10
Dependent Claim
14 words
The invention of claim 8 wherein said cam is driven by an electric motor.
Claim 11
Dependent Claim
37 words
The invention of claim 9 wherein said latch is a pivotally mounted bell-crank and said latch release member is a lug extending transversely from said elongated rod for engagement with one arm said of said bell crank.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |