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US 12,064,605 B2Granted
Syringe with flat indicia display surface
AssigneeRetractable Technologies, Inc.
InventorsThomas J. Shaw, Mark Small
Life of this patent
Estimating the term…
Abstract
A syringe for medical use having a barrel with a longitudinally extending tubular fluid chamber and at least one longitudinally extending, outwardly facing, substantially flat indicia display surface disposed proximally to the fluid chamber, a plunger slidably inserted into the fluid chamber, a needle projecting forwardly from the barrel in fluid communication with the fluid chamber; and a fixed length needle safety device having an activation handle slidably engaging the barrel and a forwardly projecting needle tip shield encircling the needle that moves forwardly to cover a tip end of the needle when the activation handle is moved forwardly following use of the syringe.
Claims31
A syringe for medical use, comprising:
- a barrel comprising (1) a nose with an internal bore, (2) a tubular section extending rearwardly from and coaxially aligned with the nose and having an open rear end, (3) a transversely projecting fingertip flange, and (4) a cylindrical collar extending rearwardly from the transversely projecting fingertip flange and configured to releasably engage with a plunger cap;
- a plunger slidably inserted into the tubular section through the cylindrical collar and through the open rear end to form a fluid reservoir inside the tubular section of the barrel;
- a needle projecting forwardly from the nose in fixed relation to the internal bore of the nose and in fluid communication with the fluid reservoir;
- two indicia display members each unitarily molded and attached in fixed relation to each of the tubular section and the transversely projecting fingertip flange, the two indicia display members each extending longitudinally in a parallel and spaced-apart relation to each other, and each of the two indicia display members having a substantially flat, printable outwardly facing surface, each outwardly facing surface having a printed volumetric scale indicia located adjacent to a sufficiently transparent portion of the tubular section to facilitate reading of a liquid level inside the fluid reservoir through the sufficiently transparent portion of the tubular section;
- and
- a needle safety device comprising (1) an activation handle at least partially disposed between and slidably engaging an inwardly facing, longitudinally extending wall of each of the two indicia display members between a first stop position and a “safe” second stop position, and (2) a needle tip shield that surrounds the nose of the barrel in the first stop position and surrounds a front tip of the needle when the activation handle is manually moved forwardly to the “safe” second stop position following use of the syringe.
3 more elements
A syringe for medical use comprising:
- a fluid chamber comprising a cylindrical sidewall;
- a nose disposed at a forward end of the fluid chamber;
- a first wall extending laterally outward from the cylindrical sidewall;
- a second wall extending laterally outward from the cylindrical sidewall and parallel to the first wall;
- a volumetric scale indicia disposed on an outwardly facing surface of the first wall and disposed adjacent to the cylindrical sidewall, wherein no volumetric scale indicia is disposed on the cylindrical sidewall;
- a needle in fluid communication with the fluid chamber and projecting forwardly from the nose;
- and
- a needle safety device configured to slide forwardly between the first wall and the second wall from a first stop position in which a front tip of the needle is exposed and a second stop position in which the front tip of the needle is circumferentially covered by a portion of the needle safety device;
- wherein the first wall and the second wall extend laterally outward from the cylindrical sidewall in a single direction, and wherein the first wall, the second wall, and the cylindrical sidewall are unitarily molded.
6 more elements
A syringe for medical use, comprising:
- a fluid chamber comprising a tubular sidewall extending longitudinally;
- a display extending longitudinally and disposed in fixed relation to the fluid chamber, the display comprising a first wall unitarily molded to the tubular sidewall, a second wall unitarily molded to the tubular sidewall and extending in parallel to the first wall, and a volumetric scale indicia;
- a first channel formed between the first wall, the second wall, and a portion of the tubular sidewall;
- a needle disposed at a forward end of the syringe and in fluid communication with the fluid chamber;
- a needle safety device comprising a needle tip shield, an activation handle disposed rearwardly of the needle tip shield, and a touch pad disposed on an outwardly facing surface of the activation handle parallel with the tubular sidewall, and wherein a least a first portion of the activation handle is disposed within the first channel;
- a pair of sliding rails disposed on the first wall and the second wall;
- and
- a pair of sliding channels disposed in the needle safety device;
- wherein the pair of sliding channels are configured to slidably engage with the pair of sliding rails to allow the needle safety device to slide between a first stop position and a second stop position relative to the first channel;
- wherein a front tip of the needle is exposed when the needle safety device is disposed in the first stop position;
- wherein the needle tip shield circumferentially surrounds the front tip of the needle when the needle safety device is moved forwardly from the first stop position to the second stop position;
- and
- wherein the volumetric scale indicia are disposed on a substantially flat outwardly facing surface of the first wall, the second wall, or both.
10 more elements
Dependencies are inferred from the claim text.