Severing by tearing or breaking – Severing by manually forcing against fixed edge – Plural supply sources
Patent
1995-10-06
1998-02-17
Jones, Eugenia
Severing by tearing or breaking
Severing by manually forcing against fixed edge
Plural supply sources
225 42, 225 52, 225 89, 206 635, 2425943, B26F 302
Patent
active
057183651
ABSTRACT:
In general, the medical apparatus provides contamination-free dispensing of a desired supply of cut-separable, intraoral ligators from a chain of such ligators. Preferably, the apparatus also provides quick loading/unloading of bobbins holding coil-wound chains of such ligators. More preferably, the apparatus provides easy positioning of such chains into a ready-to-use position so that a user may dispense a supply of such chain. The medical apparatus includes a frame and a bobbin around which a chain is wound. The chain preferably is elongate, homogeneous, and unitary and more preferably is a molded chain of plural cut-separable intraoral ligators (i.e., O-ring ligators) for use during an orthodontic ligating procedure. A hub structure and an anvil are attached to the frame. The hub structure includes a hub for mounting the bobbin thereon so that the bobbin rotates about the hub as the chain pays out from the bobbin. The anvil is attached to the frame such that the chain pays out from the bobbin in the direction toward the anvil. The anvil includes a blade and a resistance passageway through the anvil. The passageway is configured for the chain to be fed therethrough so that a section of chain may be severed from it by circumflecting the chain over the anvil and across the blade. Preferably, the hub structure is pivotally attached to the frame so that the bobbin may be quickly loaded and unloaded from the hub. More preferably, the anvil is also pivotally attached to the frame so that the anvil can swing up to expose the resistance passageway, thereby facilitating threading of the chain through the passageway.
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Jones Eugenia
Modcom, Inc.
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