Mixing syringe and method of use
Inventors
Gonzales, Silvia Daniela • Namin, Shabnam • Martin, William Blake • Ganey, Timothy
Assignees
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Publication Number
US-11229468-B2
Publication Date
2022-01-25
Expiration Date
Abstract
A syringe mixing device has a cylindrical syringe housing, an end cap, a nozzle cap, a removable stir rod mixer assembly, a large mouth funnel, and optional locking clip. The cylindrical syringe housing has an internal chamber for holding material, a distal end and a proximal end. Adjacent the proximal end is a pair of finger grips. The end cap has a proximal end for attaching to the distal end of the syringe housing. The end cap has a nozzle configured to pass material ejected from the syringe housing. The nozzle cap is for sealing the nozzle. The large mouth funnel is configured to fasten at a throat end to the distal end of the cylindrical syringe housing. The funnel has a slope shaped chamber configured to receive and pass material for mixing into the internal chamber of the syringe housing. The syringe mixing device further has a removable plunger.
Core Innovation
The invention relates to a syringe mixing device that includes a cylindrical syringe housing with an internal chamber for holding material, a distal end and a proximal end. The proximal end includes an enlarged lip or ring around an external surface and a pair of finger grips adjacent the proximal end. The device further includes an end cap having a nozzle configured to pass material ejected from the cylindrical syringe housing, and a nozzle cap for sealing the nozzle.
The device includes a removable stir rod mixer assembly for mixing material in the internal chamber. The removable stir rod mixer assembly includes a stir shaft with a mixing paddle at a distal end of the stir shaft, and the mixing paddle has a plurality of mixing blades. The assembly also includes a seal with a central hole sized to slide in and seal the internal chamber, a seal support with a central hole for receiving the stir shaft to abut a proximal end of the seal, and a handle configured to attach to a proximal end of the stir shaft to assist in rotating the stir shaft to move the mixing paddle(s).
The syringe mixing device further includes a large mouth funnel configured to fasten at a throat end to the distal end of the cylindrical syringe housing. The funnel has a slope shaped chamber configured to receive and pass material for mixing into the internal chamber. One or more locking clips lock onto the enlarged lip or ring at the proximal end, where each locking clip has a central hollow cylinder for passing the stir shaft for movement linearly and rotationally, and a length (L) that limits the travel of the mixing paddles linear movement inside the internal chamber.
Claims Coverage
The partial content includes one independent claim (clm-00001) covering the overall syringe mixing device, including the syringe housing, removable stir rod mixer assembly, large mouth funnel, end cap and nozzle sealing, and locking clip structure that constrains mixer travel.
Syringe mixing device with cylindrical housing and nozzle sealing
A cylindrical syringe housing having an internal chamber with a distal end and a proximal end, where the proximal end has an enlarged lip or ring and a pair of finger grips; an end cap with a nozzle configured to pass material ejected from the cylindrical syringe housing; and a nozzle cap for sealing the nozzle.
Removable stir rod mixer assembly with seal support and rotating handle
A removable stir rod mixer assembly for mixing material in the internal chamber, including a stir shaft with a mixing paddle having a plurality of mixing blades; a seal with a central hole for receiving the stir shaft and sized to slide in and seal the internal chamber; a seal support with a central hole for receiving the stir shaft and abutting a proximal end of the seal for rigidity; and a handle configured to attach to a proximal end of the stir shaft to assist in rotating the stir shaft to move the mixing paddle(s).
Large mouth funnel for receiving and passing material into the internal chamber
A large mouth funnel fastened at a throat end to the distal end of the cylindrical syringe housing, where the funnel has a slope shaped chamber configured to receive and pass material for mixing into the internal chamber of the cylindrical syringe housing.
Locking clips that constrain mixer travel via central hollow cylinder length (L)
One or more locking clips configured to lock onto the enlarged lip or ring at the proximal end of the cylindrical syringe housing, where the locking clip has a central hollow cylinder for passing the stir shaft for movement linearly and rotationally, and a length (L) of the central hollow cylinder limits the travel of the mixing paddles linear movement inside the internal chamber; each locking clip has lateral ends that are pushed up against the proximal end and snapped onto the enlarged lip or ring of the cylindrical syringe housing at the lateral ends of the locking clip.
Across the independent claim, the inventive coverage centers on a syringe mixing device integrating (1) a cylindrical housing with an enlarged lip/ring and nozzle sealing, (2) a removable stir rod mixer assembly having a sealed internal interface and a rotating handle, (3) a large mouth funnel for introducing material into the internal chamber, and (4) locking clips that constrain linear travel of the mixing paddles through a central hollow cylinder with a defined length (L) while permitting linear and rotational movement.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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