← Back to Patent Explorer
WO1989011310A1 Expired / Lapsed WO ⏱️ 0.0 years remaining

Aspirating hypodermic syringe apparatus and method

Assignee: Individual
•
Filing: 1988-05-25
•
Granted: —
•
Expires: 2008-05-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An aspirating hypodermic syringe (10) and method for injecting anesthetic whereby flow through the needle, while the needle is entering the tissue, is established independently of the fingers of the operator. An expendable anesthetic vial (16) is used in the syringe (17) in such a manner as to allow effective aspiration along with multiple flow rates. Flow rates and aspiration are affected by a pump assembly and controlled remotely from the syringe (10) by means of switches (28).

Inventors

  • 👤 Ronald P. Spinello

Bibliographic Details

Application Number —
Jurisdiction WO
Data Source google_patents
Last Synchronized 2026-10-23 01:52
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/06; A61C19/08; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M5/1452; A61M5/14546

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US1718602A Cited
US2701566A Cited
US2571653A Cited
US3115135A Cited
US3395704A Cited
US4126134A Cited
US3971375A Cited
US3993065A Cited
US4303069A Cited
US4323066A Cited
US4747824A Cited
US4731059A Cited
US4693708A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag