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US 2019/0293671 A1Published application
Dispenser nozzle residue mitigation
AssigneeVentana Medical Systems, Inc.
InventorsIsabel Barbero-Ortega, Philip Roper, Shane ROWLAND
Life of this patent
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Abstract
The present disclosure is directed to methods and devices for reducing or otherwise mitigating accumulated reagent material and/or fluids within a dispense nozzle of a dispenser.
Claims22
A biological specimen processing apparatus comprising:
- a fluid dispenser comprising:
- a barrel defining a fluid reservoir chamber;
- a dispense nozzle in communication with the fluid reservoir chamber;
- and
- a nozzle cap comprising a body having an opening disposed at a first end and a closed second end, the opening disposed at the first end and the closed second end defining a lumen, the nozzle cap further comprising a protuberance disposed within the lumen and extending from the closed second end toward the opening, wherein at least one of the lumen and the protuberance are configured to frictionally engage a surface of the dispense nozzle.
2 more elements
A fluid dispenser comprising:
- a barrel having a reservoir chamber;
- a dispense nozzle in communication with the reservoir chamber;
- and
- a nozzle cap releasably engaged to the dispense nozzle,
- the nozzle cap comprising a base and a retention member extending from the base, wherein the retention member has an inner surface, a first rim, and a second rim, the inner surface and the first and second rims defining a lumen that extends from the first rim to the second rim, and wherein the nozzle cap further comprises a protuberance extending into the lumen.
2 more elements
A nozzle cap comprising:
- a base and a retention member extending from the base;
- wherein the retention member has an inner surface, a first rim, and a second rim, the inner surface and first and second rims defining a lumen, the lumen extending from the first rim to the second rim, and wherein the nozzle cap further comprises a protuberance extending into the lumen;
- wherein the base further comprises a probe tool adapted for insertion into a bore of a dispense nozzle, wherein the probe tool comprises at least one abrading member.
Dependencies are inferred from the claim text.