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US5201779A Expired / Lapsed US ⏱️ 0.0 years remaining

Disposable implant injector

Assignee: Individual
•
Filing: 1992-02-13
•
Granted: 1993-04-13
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Expires: 2012-02-13
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Abstract

Abstract An injector which is applicable for use in mammoplasty, is formed by extrusion and with material having good flexibility. The configuration of the injector includes multiple mutually separatable flaps which each expand outwardly when an implant to be placed in the breast is pressed against the flaps. This is after a guiding rod penetrates into an incision in the skin of the patient so that an implant, pushed by a plunger to pass through the tip of the injector, can be quickly and smoothly placed in a breast. The injector is disposable for completely ruling out infection due to repeated use.

Inventors

  • 👤 I-Sen Shiao

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 18:56
CPC Classifications
A; A61; A61M; A61M31/00; A61M31/007; A61B; A61B17/00; A61B17/34; A61B17/3468; A61F; A61F2/00; A61F2/02; A61F2/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 228 words
A disposable implant injector system comprising a hollow injection barrel, a guiding rod and a plunger; said injector barrel is formed with a material having good flexibility and terminating at opposite ends, said injector barrel having at one end thereof multiple flaps forming an injection tip, each said flaps being adjacent one another in an initial state and adapted to deflect outwardly when an implant element is forced therethrough; said guiding rod having an outer dimension to be housed within said barrel and having at one end thereof a tapered tip configured to penetrate the injection tip of the injector and an enlarged opposite end to limit the axial displacement of said rod within said barrel; and said plunger being configured to slide freely within said barrel, said plunger having a front end adapted to push said implant within said barrel outwardly through the injection tip whereby said guiding rod is disposed within said barrel with said front end protruding outwardly from said injection tip when said injection tip is inserted into an incision in the tissue of a patient to locate the barrel in the incision, the guiding rod is removed and the implant is disposed within said barrel and said plunger is inserted into the barrel for pushing said implant therethrough to said injection tip thereby expanding said flaps and passing the implant into the tissue.
Claim 2
Dependent Claim 228 words
A disposable implant injector system comprising a hollow injection barrel, a guiding rod and a plunger; said injector barrel is formed with a material having good flexibility and terminating at opposite ends, said injector barrel having at one end thereof multiple flaps forming an injection tip, each said flaps being adjacent one another in an initial state and adapted to deflect outwardly when an implant element is forced therethrough; said guiding rod having an outer dimension to be housed within said barrel and having at one end thereof a tapered tip configured to penetrate the injection tip of the injector and an enlarged opposite end to limit the axial displacement of said rod within said barrel; and said plunger being configured to slide freely within said barrel, said plunger having a front end adapted to push said implant within said barrel outwardly through the injection tip whereby said guiding rod is disposed within said barrel with said front end protruding outwardly from said injection tip when said injection tip is inserted into an incision in the tissue of a patient to locate the barrel in the incision, the guiding rod is removed and the implant is disposed within said barrel and said plunger is inserted into the barrel for pushing said implant therethrough to said injection tip thereby expanding said flaps and passing the implant into the tissue.

References Cited (Backward Citations)

US2754822A Cited
US3667465A Cited
US4147164A Cited
US4341211A Cited
US4936827A Cited
US4955906A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-04-12 1996-10-12 1997-04-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-04-12 2000-10-12 2001-04-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-04-12 2004-10-12 2005-04-13 $7700.00 Window Closed / Lapsed

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