Pipette aspiration device
View Patent ↗A device for aspirating sample media into a pipette for use in a micro-manipulation procedure includes a ring member having an opening sized for receiving a digit of an operator, and an aspirating bulb engaged with the ring member. The aspirating bulb has an open end sized for receiving an end of the pipette, and includes a compressible chamber capable of creating a suction force suitable for aspirating the sample media into the pipette. The aspirating bulb is oriented along the ring member such that the chamber is compressible by a digit on the same hand of the operator as the digit receivable in the ring member.
1. A device for use in aspirating sample media into a pipette, comprising:
a ring member having an opening sized for receiving a digit of an operator or a substrate capable of being grasped by a hand of the operator; and
an aspirating bulb engaged with an outer surface of said ring member, said aspirating bulb having an open end with an end of the pipette situated therein, and having a closed end, said aspirating bulb including a compressible chamber capable of creating a suction force suitable for aspirating said sample media into said pipette, said aspirating bulb being oriented along said ring member such that said chamber is compressible by a digit on the same hand of the operator as the digit receivable in the ring member or on the hand that grasps the substrate.
2. The device of claim 1 , wherein said ring member outer surface includes a channel formed therealong, and wherein said aspirating bulb is received in said channel.
3. The device of claim 1 , wherein said aspirating bulb includes a narrow passageway in communication with said open end, said narrow passageway opening into said chamber.
4. The device of claim 1 , wherein said ring member and said aspirating bulb comprise elastomers.
5. The device of claim 1 , wherein said ring member and said aspirating bulb comprise silicone.
6. The device of claim 1 , wherein said ring member and said aspirating bulb comprise an integrally-molded structure.
7. The device of claim 1 , wherein said ring member has a circumference, and includes a void along a portion of said circumference.
8. The device of claim 1 , wherein said ring member opening is sized to receive an index finger of the operator, and the aspirating bulb is oriented on the device such that the chamber is compressible by the thumb on said hand.
9. The device of claim 1 , wherein said ring member opening is sized to receive said substrate, said substrate comprising a container for said pipette.