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US 2026/0224815 A1Published application
Devices and methods for a variably locking syringe assembly
AssigneeFemasys Inc.
InventorsKathy Lee-Sepsick, Jeremy Sipos
Life of this patent
Estimating the term…
Abstract
Disclosed herein are exemplary variably lockable syringe assemblies, methods of making and using the same. Such variably locking syringe assemblies are useful in many applications.
Claims22
A syringe assembly comprising:
- a) a barrel comprising a barrel key located within the barrel lumen at a proximal end of the barrel;
- b) a plunger comprising at least one teeth section structure and at least one flat section structure;
- wherein the plunger is lockable along the lumen of the barrel between the distal end of the lumen and the proximal end of the lumen by positioning the barrel key between two teeth or between a tooth and an edge;
- and
- wherein the plunger is unlockable by moving a flat section of the plunger to face or be adjacent to the barrel key.
2 more elements
A method of inflating a catheter balloon, comprising
- a) attaching a syringe assembly comprising i) a barrel comprising a fluid composition, having a proximal end and a distal end, comprising a barrel key located within the barrel lumen at a proximal end of the barrel, and an inlet/outlet port at the distal end;
- and ii) a plunger comprising at least one teeth section structure and at least one flat section structure;
- wherein the plunger is lockable along the lumen of the barrel between the distal end of the lumen and the proximal end of the lumen by positioning the barrel key between two teeth or between a tooth and an edge;
- and wherein the plunger is unlockable by moving a flat section of the plunger to face or be adjacent to the barrel key;
- to a port in fluid connection with a balloon lumen;
- b) moving the plunger in a distal direction within the barrel lumen to move at least a portion of the fluid through and out the inlet/outlet port and into a balloon lumen;
- and optionally,
- c) locking the plunger at a desired position within the barrel lumen by rotating the plunger so that the barrel key is positioned between two teeth or between a tooth and an edge.
5 more elements
A method for injecting a composition into a subject comprising, a) attaching a syringe assembly comprising i) a barrel containing a composition, having a proximal end and a distal end, and comprising a barrel key located within the barrel lumen at a proximal end of the barrel, and an inlet/outlet port at the distal end;
- and ii) a plunger comprising at least one teeth section structure and at least one flat section structure;
- wherein the plunger is lockable along the lumen of the barrel between the distal end of the lumen and the proximal end of the lumen by positioning the barrel key between two teeth or between a tooth and an edge;
- and wherein the plunger is unlockable by moving a flat section of the plunger to face or be adjacent to the barrel key;
- to a needle useful for injection;
- a) inserting the needle into a subject at a target site;
- b) moving the plunger a desired distance in a distal direction within the barrel lumen to move at least a portion of the composition through and out the inlet/outlet port, through the needle and into the target site to inject a desired amount of the composition,
- c) locking the plunger at the desired distance position within the barrel lumen by rotating the plunger so that the barrel key is positioned between two teeth or between a tooth and an edge;
- d) withdrawing the needle from the target site, and optionally, repeating steps a) to d) at a second target site.
5 more elements
Dependencies are inferred from the claim text.