초록 ▼

A disposable, single-hand controlled aspirating device for medical aspirating activities such as subcutaneous biopsy of fluid, soft tissue and bone marrow is provided. The aspirating device includes a syringe barrel, a plunger operative in the barrel, a finger grip member surrounding the exterior wa

A disposable, single-hand controlled aspirating device for medical aspirating activities such as subcutaneous biopsy of fluid, soft tissue and bone marrow is provided. The aspirating device includes a syringe barrel, a plunger operative in the barrel, a finger grip member surrounding the exterior wall of the barrel that includes a collar portion engaging the exterior wall of the barrel and flange portions extending outwardly from the exterior wall of the barrel a distance sufficient to provide support for a user\s fingers during aspiration procedures, and a spring surrounding the plunger portion external to the barrel for biasing the plunger outwardly from the barrel after the plunger has been advanced in the barrel toward the distal end thereof.

대표청구항 ▼

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

An aspirating device, comprising: a syringe barrel having an exterior wall, an interior wall, a distal end and a a proximal end, said walls and said ends defining a hollow interior space having a predetermined volume, said distal end having an opening and a hub, said distal end opening extending through said hub, said proximal end terminating at an outwardly projecting rim; a finger grip member surrounding said exterior wall of said barrel and positioned along said barrel substantially adjacent said proximal end thereof, said finger grip member including a collar portion having an interior surface engaging said exterior wall of said barrel and a pair of flange portions extending outwardly from said collar portion, each of said flanges extending outwardly from said exterior wall of said barrel a distance sufficient to provide support for at least one finger of a user and having a substantially flat surface terminating at a rounded end tip, said finger grip member being slidable along said barrel and said interior surface of said collar frictionally engaging said exterior wall of said barrel substantially adjacent said outwardly projecting rim of said proxiaml rim of said proximal end of said barrel, whereby said frictional engagement is such that it compresses said barrel wall to allow selective placement and retention of said finger grip member along said barrel; a plunger operative in said barrel, said plunger extending both within said barrel interior space and external to said barrel proximal end and having a first end sealingly received inside said barrel and a second end outside said barrel, said plunger being movable within said barrel interior space 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 second end; and spring means surrounding said plunger portion external to said barrel and extending along said plunger between said pressure plate and said barrel proximal end, said spring means biasing said plunger outwardly from said barrel after said plunger has been advanced in said barrel toward said distal end thereof.