Blood collection tube holder with single needle
Inventors
Shaw, Thomas J. • Small, Mark • Zhu, Ni
Assignees
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Publication Number
US-12285253-B2
Publication Date
2025-04-29
Expiration Date
Abstract
A blood collection tube holder having a retractable single needle and a body comprising substantially parallel and laterally spaced apart barrel and needle retraction cavities separated by a partial wall that facilitates lateral movement of the single needle from the barrel cavity into alignment with the needle retraction cavity to initiate needle retraction. The barrel and a frontal attachment to the barrel are cooperatively configured to facilitate relative sliding movement between in a direction that is transverse to the longitudinal axis through the retractable single needle to initiate needle retraction.
Core Innovation
The invention provides a single-use blood collection tube holder that includes a body with an integrally formed barrel cavity and a laterally spaced needle retraction chamber, separated by a partial wall. The barrel and the needle retraction cavity are disposed in a fixed, substantially parallel relationship. A rearwardly biased, retractable needle assembly includes a needle holder and a single needle with a venipuncture portion extending forwardly from the needle holder and a fluid discharge portion extending rearwardly within the barrel.
The tube holder connector is coupled to a forwardly facing end of the barrel and includes a transverse slot. A slide member is slidably engaging the tube holder connector, and the invention enables manual oppositely directed lateral sliding of the slide member relative to the tube holder connector and barrel. This lateral movement causes the venipuncture portion to slide transversely through the transverse slot and laterally past the partial wall until the single needle is aligned with the needle retraction cavity.
After alignment with the needle retraction cavity, the needle retraction chamber initiates retraction of the needle assembly within the needle retraction cavity. The partial wall includes a reduced height portion configured to simultaneously allow lateral sliding movement of the fluid discharge portion past the reduced height portion of the partial wall from a first position where coaxial alignment is with the barrel cavity to a second position where coaxial alignment is with the needle retraction cavity. The disclosed structure further includes a selectively releasable needle cap/locking arm to prevent premature retraction and containment of the venipuncture end within a needle support member upon full retraction.
Claims Coverage
The document provides two independent claims. Both independent claims focus on a blood collection tube holder with an integrally formed barrel cavity and needle retraction chamber separated by a partial wall, where a transverse slot and a laterally slidable slide member shift a retractable single needle between coaxial alignment positions to initiate retraction, including reduced-height partial wall passage for the fluid discharge portion.
Integrally formed barrel and needle retraction cavity separated by partial wall
A body comprising a barrel and a needle retraction cavity, wherein the barrel and the needle retraction cavity are integrally formed, substantially parallel, and separated by a partial wall.
Tube holder connector with transverse slot for needle lateral transposition
A tube holder connector coupled to a forwardly facing end of the barrel and comprising a transverse slot.
Lateral sliding slide member shifts venipuncture through transverse slot to align needle with retraction cavity
A slide member slidably engaging the tube holder connector, wherein lateral sliding movement of the slide member with respect to the tube holder connector and the barrel causes the venipuncture portion to slide transversely through the transverse slot of the tube holder connector and laterally past the partial wall until the single needle is aligned with the needle retraction cavity, which initiates retraction of the needle assembly within the needle retraction cavity.
Partial wall reduced height portion permitting lateral movement of fluid discharge past partial wall
The partial wall comprises a reduced height portion configured to simultaneously allow lateral sliding movement of the fluid discharge portion of the retractable single needle past the reduced height portion of the partial wall from a first position where the retractable single needle is coaxially aligned with the barrel cavity to a second position where the retractable single needle is coaxially aligned with the needle retraction cavity to initiate retraction of the retractable single needle within the needle retraction chamber.
Coaxial alignment switching via lateral sliding to initiate retraction
The barrel cavity and the needle retraction cavity are disposed in a fixed, substantially parallel relationship and separated by a partial wall, and the transverse slot is configured to allow lateral sliding movement of the venipuncture portion while the reduced height portion allows fluid discharge portion passage such that the retractable single needle shifts from coaxial alignment with the barrel cavity to coaxial alignment with the needle retraction cavity to initiate retraction.
Across the independent claims, inventive coverage centers on an integrally formed, substantially parallel barrel cavity and needle retraction cavity separated by a partial wall, with a transverse slot and laterally slidable slide member causing lateral transposition of the venipuncture portion and, via a reduced-height partial wall portion, passage of the fluid discharge portion so that coaxial alignment shifts from the barrel cavity to the needle retraction cavity to initiate retraction.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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