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US 10,118,024 B2Granted
Insufflation pump
OwnerStuart H. Millerinventor
Life of this patent
Estimating the term…
Abstract
An insufflation pump includes a pump body having a first end and a second end. The pump body includes a syringe mechanism at the first end and an actuation mechanism at the second end. The syringe mechanism includes a plunger. The plunger of the syringe mechanism and the actuation mechanism are linked by a toggle assembly facilitating transfer of power from the actuation mechanism to the syringe mechanism.
Claims17
An insufflation pump, comprising:
- a pump body having a first end and a second end;
- the pump body includes a syringe mechanism at the first end and an actuation mechanism at the second end, the syringe mechanism including a plunger and a syringe barrel, and the plunger is positioned within the syringe barrel for movement therein, the syringe barrel includes a proximal, second end and a distal, first end, and the actuation mechanism includes a pistol grip having a fixed, handheld lever portion and a spring loaded oscillating lever portion;
- wherein the plunger of the syringe mechanism and the actuation mechanism are linked by a toggle assembly coupled between the spring loaded oscillating lever portion and the plunger of the syringe assembly, the toggle assembly including a plurality of linkage members interconnected to facilitate amplification and transfer of power from the actuation mechanism to the syringe mechanism to create large atmospheric pressures needed for catheter balloon inflation, the toggle assembly includes a carriage member secured to one of the plurality of linkage members, the carriage member having a toggle control assembly and a locking pin, the locking pin engages the plunger during forward motion and disengages from the plunger during rearward motion such that when the oscillating lever portion is compressed the toggle assembly moves the carriage member and the plunger forward and when the oscillating lever portion is released the toggle assembly moves the carriage member, including the toggle control assembly and the locking pin, rearwardly without causing the plunger to move rearwardly;
- wherein the toggle assembly includes a first linkage member, a second linkage member, a third linkage member, and a fourth linkage member;
- and
- wherein a first end of the first linkage member is fixedly secured to a second end of the oscillating lever portion such that the second end of the first linkage member moves about an arc defined by rotation of the oscillating lever portion, a first end of the second linkage member is pivotally connected to a second end of the first linkage member, a second end of the second linkage member is pivotally and directly connected, respectively to, both a second end of the third linkage member and a second end of the fourth linkage member, and a first end of the fourth linkage member is pivotally secured to the pump body while a first end of the third linkage member is in communication with the plunger for driving the plunger forward as the oscillating lever portion is actuated.
3 more elements
An insufflation pump, comprising:
- a pump body having a first end and a second end;
- the pump body includes a syringe mechanism at the first end and an actuation mechanism at the second end, the syringe mechanism including a plunger and a syringe barrel, and the plunger is positioned within the syringe barrel for movement therein, the syringe barrel includes a proximal, second end and a distal, first end, and the actuation mechanism includes a fixed, handheld lever portion and an oscillating lever portion;
- wherein the plunger of the syringe mechanism and the actuation mechanism are linked by a toggle assembly coupled between the oscillating lever portion and the plunger of the syringe assembly, the toggle assembly including a plurality of linkage members interconnected to facilitate amplification and transfer of power from the actuation mechanism to the syringe mechanism to create large atmospheric pressures needed for catheter balloon inflation, wherein the plurality of linkage members includes a first linkage member, a second linkage member, a third linkage member and a fourth linkage member, wherein a first end of the first linkage member is fixedly secured to a second end of the oscillating lever portion such that the second end of the first linkage member moves about an arc defined by the rotation of the oscillating lever portion, a first end of the second linkage member is pivotally connected to a second end of the first linkage member and a second end of the second linkage member is pivotally and directly connected, respectively, to both a second end of the third linkage member and a second end of the fourth linkage member, a first end of the fourth linkage member is pivotally secured to the pump body while a first end of the third linkage member is coupled to a carriage member that engages the plunger during forward motion and disengages from the plunger during rearward motion such that when the oscillating lever portion is compressed the toggle assembly moves the carriage member and the plunger forward and when the oscillating lever portion is released the toggle assembly moves the carriage member rearwardly without causing the plunger to move rearwardly.
Dependencies are inferred from the claim text.