Hand-held gun for inflating and aspirating large volume balloons

Details Hand-held gun for inflating and aspirating large volume balloons Hand-held gun for inflating and aspirating large volume balloons

1991-12-13

1993-05-11

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 99, 604131, 222340, 222391, A61M 2900

Patent

active

052097315

ABSTRACT:
Hand-held gun for inflating and deflating large volume balloons by the use of a syringe having a barrel and a syringe plunger having a head and slidably mounted in the barrel. The gun is provided with a handle adapted to be grasped by the hand. A housing is carried by the handle and is adapted to receive and retain the barrel of the syringe. A plunger rod is provided which has proximal and distal extremities and is slidably mounted in the handle for movement in a direction parallel to the movement of the syringe plunger between forward and rearward positions. A sleeve is secured to the proximal extremity of the plunger rod and extends coaxially for at least a portion of the plunger rod. A coil spring is mounted on the plunger rod for yieldably urging the plunger rod in a direction axially of the plunger rod toward the rearward position. A plate is secured to the sleeve and is adapted to be removably secured to the head of the syringe plunger. A gripper is pivotally mounted on the handle and engages the plunger rod for progressively advancing the plunger rod towards a forward position against the force of the coil spring to advance the syringe plunger in the barrel for causing an inflating liquid to be discharged from the barrel for inflation of the balloon. A trigger is pivotally mounted on the handle for releasing the plunger rod from a forward position to permit the spring means to return the plunger rod to a rearward position and to carry with it the syringe plunger to aspirate fluid from the balloon to cause deflation of the balloon.

REFERENCES:
patent: 2892457 (1959-06-01), Sturtz
patent: 3122280 (1964-02-01), Goda
patent: 4333459 (1982-06-01), Becker
patent: 4808165 (1989-02-01), Carr
patent: 4840294 (1989-06-01), Ernst
patent: 4976725 (1990-12-01), Chin et al.

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