SYSTEMS AND METHODS FOR ASPIRATING FROM A BODY LUMEN
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0 Petitions
Accused Products
Abstract
An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
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Citations
27 Claims
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1-21. -21. (canceled)
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22. A device for aspirating fluid from a body lumen, comprising:
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an internal syringe barrel member defining a chamber configured to contain fluid, the chamber having an opening through which fluid can pass; a plunger movably positioned at least partially within the chamber, the plunger including a plunger seal; an external syringe barrel connected to the plunger, wherein the internal syringe barrel is slidably positioned inside the external syringe barrel, wherein the plunger and the external syringe barrel collectively form a body that can slide relative to the internal syringe barrel; first and second finger elements extending outward from a proximal end of the internal syringe barrel; third and fourth finger elements extending outward from a distal end of the external syringe barrel; wherein movement of the first and second finger elements toward the third and fourth finger elements causes relative movement between the plunger seal and the chamber so as to aspirate fluid into the chamber; a locking mechanism movable between a first state and a second state, wherein the locking mechanism locks a position of the plunger seal relative to chamber when the locking mechanism is in the first state, and the locking mechanism permits relative movement of the plunger seal relative to chamber when the locking mechanism is in the second state. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification