Syringe systems and methods for multi-stage fluid delivery
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Publication Number
US-11167085-B2
Publication Date
2021-11-09
Expiration Date
Abstract
Embodiments include a syringe-based apparatus for delivering fluid, the apparatus comprising a housing having an open proximal end and a distal end defining an inner volume, a needle, an actuator mechanism coupled with the housing, the actuator mechanism comprising a syringe body and a plunger, a medicament reservoir, and a reconstitution fluid reservoir.
Core Innovation
The invention relates to a syringe-based apparatus for delivering fluid in which a medicament in solid form is reconstituted into a reconstituted medication and then delivered through a needle. A housing has an open proximal end and a distal end defining an inner volume, and the needle is coupled with the distal end of the housing. A sleeve is insertable into the open proximal end of the housing, and the sleeve comprises a port at the distal end of the sleeve.
The apparatus includes an actuator mechanism coupled with the housing, where the actuator mechanism comprises a syringe body and a plunger. The medicament reservoir is defined at least partially by the sleeve positioned within the housing and the actuator mechanism, and the medicament reservoir retains an amount of a medicament in solid form. A reconstitution fluid reservoir is defined at least partially by the syringe body and the plunger, and the plunger is moveable relative to the syringe body to expel fluid from the reconstitution fluid reservoir into the medicament reservoir so the fluid and the amount of the medicament form a reconstituted medication.
After forming the reconstituted medication, the actuator mechanism is moveable relative to the housing to expel the reconstituted medication from the medicament reservoir through the needle. In the glass-sleeve embodiments, the housing defines a viewing window and a glass sleeve insertable into the open proximal end comprises a valve at the distal end of the glass sleeve. A locking mechanism fixedly couples the plunger and the syringe body when the plunger is urged distally, and the medicament reservoir retains a medicament selected from glucagon, ziprasidone HCl, and ceftriaxone while the reconstitution fluid reservoir retains a fluid selected from sterile water, saline, and lidocaine.
Claims Coverage
The disclosed subject matter includes two independent claims. Each independent claim centers on an actuator mechanism that uses a moveable plunger to expel reconstitution fluid into a solid medicament reservoir to form a reconstituted medication, followed by expelling the reconstituted medication through a needle.
Syringe reconstitution with moveable plunger into a solid medicament reservoir
A housing with an open proximal end and distal end defining an inner volume, a needle coupled with the distal end, a sleeve insertable into the open proximal end with a port at the distal end, an actuator mechanism comprising a syringe body and a plunger, a medicament reservoir defined at least partially by the sleeve positioned within the housing retaining a medicament in solid form, and a reconstitution fluid reservoir defined at least partially by the syringe body and the plunger, where the plunger is moveable relative to the syringe body to expel fluid into the medicament reservoir to form a reconstituted medication, and the actuator mechanism is moveable relative to the housing to expel the reconstituted medication through the needle.
Glass-sleeve reconstitution with distal valve, viewing window, and locking mechanism
A housing with an open proximal end and distal end defining an inner volume with a viewing window, a needle coupled with the distal end, a glass sleeve insertable into the open proximal end into the inner volume and comprising a valve at the distal end, an actuator mechanism comprising a syringe body and a plunger where the plunger extends into the sleeve through the proximal end, a locking mechanism operably configured to fixedly couple the plunger and the syringe body when the plunger is urged distally, and a medicament reservoir and reconstitution fluid reservoir retaining the stated medicament and fluid selections.
Across the independent claims, the core coverage is a syringe-based apparatus that reconstitutes a solid medicament by moving a plunger to expel reconstitution fluid into a medicament reservoir to form a reconstituted medication, and then moves an actuator mechanism to expel the reconstituted medication through a coupled needle. One independent claim uses a sleeve having a port at the distal end, while the other independent claim uses a glass sleeve with a distal valve and includes a viewing window and a locking mechanism fixedly coupling the plunger and syringe body.
Stated Advantages
Documented Applications
Not explicitly described in patent.
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