Resonating device for a pneumatic surgical instrument
AssigneeStryker Instruments
InventorsTim Austin, Steve Reasoner
Life of this patent
Estimating the term…
Abstract
A resonating device for attenuating sound waves that are generated by a pneumatic surgical instrument is disclosed. The resonating device includes a manifold having a duct for accommodating a flow of fluid from the instrument. A plurality of canisters extend from the manifold for attenuating sound waves produced by the instrument. A neck extends into each canister and is in fluid communication with the duct and the canister. The canisters are mounted to and extend from the manifold in series. The canisters attenuate the sound waves in order from the highest frequency to the lowest frequency, thereby efficiently attenuating the sound waves.
Claims66
A resonating device for attenuating sound waves that are generated by a pneumatic surgical instrument (12) during surgery, said device comprising:
- a manifold (24) having an inlet (26) and an outlet (28) and defining a duct (30) extending therebetween for accommodating a flow of fluid from the surgical instrument (12);
- and
- at least one canister (38) extending from said manifold (24) and defining a volume (V1) for attenuating the sound waves generated by the surgical instrument (12);
- said device characterized by a neck (48) in fluid communication with said duct (30) and extending into said canister (38) to minimize the size of said resonating system (10).
A resonating system for attenuating sound waves, said system comprising:
- a pneumatic surgical instrument (12) that generates the sound waves during surgery;
- a manifold (24) in fluid communication with said surgical instrument (12) and having an inlet (26) and an outlet (28) and defining a duct (30) extending therebetween for accommodating a flow of fluid from said surgical instrument (12);
- and
- at least one canister (38) extending from said manifold (24) and defining a volume (V1) for attenuating sound waves generated by said surgical instrument (12);
- said system characterized by a neck (48) in fluid communication with said duct (30) and extending into said canister (38) to minimize the size of said resonating system (14).
A resonating device for attenuating sound waves at different harmonic frequencies that are generated by a pneumatic surgical instrument (12) during surgery, said device comprising:
- a manifold (24) having an inlet (26) and an outlet (28) and defining a duct (30) extending therebetween for accommodating a flow of fluid from the surgical instrument (12);
- a canister (38) and second canister (56) extending from said manifold (24) in series with said canister (38) defining a volume (V1) for attenuating the sound waves that are generated by the surgical instrument (12) at a first harmonic frequency (F1) and with said second canister (56) defining a volume (V2) for attenuating the sound waves that are generated by the surgical instrument (12) at a second harmonic frequency (F2) wherein said first harmonic frequency (F1) is a lowest harmonic frequency and said second harmonic frequency (F2) is greater than said first harmonic frequency (F1);
- said device characterized by said second canister (56) extending from said manifold (24) closer to said inlet (26) than said canister (38) such that the sound waves that are generated at said second harmonic frequency (F2) are attenuated by said second canister (56) before the sound waves that are generated at said first harmonic frequency (F1) are attenuated by said canister (38) upon flow of the fluid into said manifold (24) through said inlet (26).
Dependencies are inferred from the claim text.