초록 ▼

An improved disposable single-hand controlled aspirating device for medical aspirating activities most particularly fine needle biopsy procedures. The aspirating device includes a syringe barrel, a plunger operative in the barrel, and a finger grip assembly that is mounted to the syringe barrel and

An improved disposable single-hand controlled aspirating device for medical aspirating activities most particularly fine needle biopsy procedures. The aspirating device includes a syringe barrel, a plunger operative in the barrel, and a finger grip assembly that is mounted to the syringe barrel and plunger for controlling plunger movement within the barrel. The finger grip assembly includes a body member and a trigger member slidably engaged within the body member. More specifically, the finger grip assembly resembles a pistol-like handle and trigger arrangement that enables a user of the device to control plunger movement in the syringe barrel with a single hand.

대표청구항 ▼

A disposable aspirating device comprising: a. a plastic syringe barrel having an exterior wall, an interior wall, a distal end and a proximal end, said walls and said ends defining a hollow interior space having a predetermined volume, said distal end having an opening extending through a hub, said

A disposable aspirating device comprising: a. a plastic syringe barrel having an exterior wall, an interior wall, a distal end and a proximal end, said walls and said ends defining a hollow interior space having a predetermined volume, said distal end having an opening extending through a hub, said proximal end terminating at an outer rim; b. a plastic plunger operative in said barrel, said plunger extending both within said barrel and external to said barrel proximal end and having an interior end sealingly received inside said barrel and an exterior end outside said barrel, said plunger being movable in said barrel inwardly toward said distal end and outwardly away from said distal end, thereby varying the volume of and pressure within said barrel interior space, said plunger including a pressure plate at said exterior end; and c. a plastic finger grip assembly mounted to said syringe barrel and having a body member and a trigger member slidable within said body member, said body member having a syringe barrel holder section with an inner end, an outer end, a front surface and a back surface, a single outwardly projecting handle, and a trigger guide section between said handle and syringe barrel holder section, said trigger guide section includes opposing inwardly flanged side walls extending from said back surface of said syringe barrel holder section and defining a trigger member guide channel along said syringe barrel holder section, said handle extending outwardly from said trigger guide section and having an opening therein to accommodate trigger member travel through said handle and said trigger guide section, said trigger member having an inner surface, an outer surface, a first end and a second end, said trigger member including a single flange proximate said first end and a plunger withdrawal extension proximate said second end, said flange extending away from said outer surface in a substantially perpendicular direction a sufficient distance to support at least one finger of a user and said plunger withdrawal extension projecting away from said inner surface proximate said second end in a substantially perpendicular direction a sufficient distance to engage said plunger pressure plate so as to direct said plunger outwardly from said barrel when said flange is squeezed toward said handle, said trigger member flange further comprising an integral guide member extending along said outer surface toward said second end, said guide member cooperatively engaging said channel to facilitate linear movement of said trigger member in said trigger guide section.