US3563239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic injector
Assignee: Individual
•
Filing: 1968-06-04
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Granted: 1971-02-16
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Expires: 1988-06-04
Abstract
Abstract Chilling device for a hypodermic needle comprising a casing of heat absorptive material having sufficiently thick walls to be refrigerated and thereby act as a pain killer for the injections.
Inventors
- 👤 Clifford W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:41
CPC Classifications
A; A61; A61M; A61M19/00; A61M5/00; A61M5/42; A61M5/422; A61M2205/00; A61M2205/36; A61M2205/3606; A61M2205/3646
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
Injector for a syringe having a barrel with a scale and a hypodermic needle for injecting a patient: said injector comprising a guide for said barrel to provide rectilinear movement of said needle; said guide having an abutment to engage the body of a patient; said abutment having an aperture for passage therethrough of said needle as said barrel moves along said guide; said guide having a window through which the scale of said barrel is visible; said guide being constructed of metal having an internal diameter about three-eighths of an inch, an outside diameter of about 1 inch, and capable of being chilled below ambient temperature by being placed in a refrigerator, and the abutment then placed on the patient while still at said lower temperature; said aperture being not materially larger than said barrel to leave said abutment sufficiently close to said needle; and said abutment being of sufficient mass and thermal conductivity to materially desensitize the area contacted by said abutment against the pain of said needle.
Claim 2
Dependent Claim
170 words
Injector for a syringe having a barrel with a scale and a hypodermic needle for injecting a patient: said injector comprising a guide for said barrel to provide rectilinear movement of said needle; said guide having an abutment to engage the body of a patient; said abutment having an aperture for passage therethrough of said needle as said barrel moves along said guide; said guide having a window through which the scale of said barrel is visible; said guide being constructed of metal having an internal diameter about three-eighths of an inch, an outside diameter of about 1 inch, and capable of being chilled below ambient temperature by being placed in a refrigerator, and the abutment then placed on the patient while still at said lower temperature; said aperture being not materially larger than said barrel to leave said abutment sufficiently close to said needle; and said abutment being of sufficient mass and thermal conductivity to materially desensitize the area contacted by said abutment against the pain of said needle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |