US3595233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical device for internally administering medicants
Assignee: Individual
•
Filing: 1967-10-06
•
Granted: 1971-07-27
•
Expires: 1987-10-06
Abstract
Abstract A medical device for internally administering medicants in body passages. The device comprises a hollow cylinder and a detachable nozzle secured to one end of the cylinder and insertable into a body passage. A thin tearable sack for a medicant is secured in the nozzle. An ejector piston formed with a rack portion is slidable in the hollow cylinder. A knurled wheel mounted in the cylinder''s wall engages with the ejector piston''s rack portion. Rotation of the knurled wheel advances the ejector piston into the nozzle and pushes the medicant through the tearable sack into the body passage.
Inventors
- 👤 Robert Fuchslocher
- 👤 Hermann R Worch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
A; A61; A61M; A61M31/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A medical device according to claim 1, wherein said inserting nozzle is provided internally with a thin perforable foil secured to the nozzle and extending inwardly from the nozzle''s outlet to provide a sack portion for receiving a medicant and tearable by the medicant upon the propulsion of said medicant by said ejector through said nozzle.
Claim 2
Dependent Claim
47 words
A medical device according to claim 1, wherein said inserting nozzle, at the end remote from the end at which said nozzle is mounted in said open end has a rounded resilient opening having a slot through which said cartridge is sterilely introduced into said body passage.
Claim 3
Dependent Claim
73 words
A medical device according to claim 1, wherein said cartridge is provided with a protective covering open at one end comprising a thin foil skin and a sacklike enlargement to receive said cartridge, which protective covering has, at said open end a collar-shaped edging whereby said protective covering, with the said cartridge charged therein, after being received in said inserting nozzle, screens the cartridge against contact with any other parts of the device.
Claim 4
Dependent Claim
22 words
A medical device according to claim 4, wherein the length of said protective covering is greater than the length of said cartridge.
Claim 5
Dependent Claim
69 words
A medical device according to claim 4, wherein the cartridge to be inserted in the body passage together with its packaging foil is charged into said inserting nozzle, an ejecting ram being provided in said ejection means the packaging foil being opened at its one end during the ejecting process due to the pressure of said ejecting ram by virtue of the provision of a perforation at this end.
Claim 6
Dependent Claim
21 words
A medical device according to claim 1, wherein said inserting nozzle has an extension in the form of an inserting tube.
Claim 7
Dependent Claim
18 words
A medical device according to claim 1, wherein said ejector at least at Its ejecting end is bulbous.
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |