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 Title: |
US4055173:
Surgical masking and ventilating system
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Knab, James V.; Grand Rapids, MI 49506
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| Assignee: |
None
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| Published / Filed: |
1977-10-25
/ 1975-04-21
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| Application Number: |
US1975000570237
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| IPC Code: |
Advanced:
A41D 13/11;
Core:
A41D 13/05;
IPC-7:
A62B 7/02;
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| ECLA Code: |
A41D13/11B10;
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| U.S. Class: |
Current:
128/847;
128/201.23;
128/201.29;
128/863;
128/910;
Original:
128/139;
128/142.5;
002/DIG.7;
128/142.7;
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| Field of Search: |
128/139,142.3-142.7,146.3,146.4,146.6,146.7,276,298,299,1 R,1 B
417/249,255,244,313
002/171,171.3,173,202,DIG. 7,14 B,14 K
137/566
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| Priority Number: |
| 1975-04-21 |
US1975000570237 |
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| Abstract: |
A surgical masking and ventilating system for protecting an operating zone from contaminants emanated by members of a surgical team during an operation. The system includes protective apparel for substantially isolating each member of the surgical team from the environment of the operating zone, a suction tube connecting the apparel of each member to a vacuum manifold, an aspirator adapted to create a vacuum in the manifold and each suction tube connected thereto for drawing away contaminants within the apparel of each member and creating an air flow that maintains the person at a comfortable temperature, and high efficiency filter means for cleaning the air discharged from the aspirator to a contaminant free condition prior to re-entry into the environment of the operating room. The aspirator includes a vacuum motor and blower motor which together more efficiently and quietly maintain a substantial vacuum in the connecting tubes and reliably direct the discharged air through the resistance of the high efficiency filter. The protective apparel is designed so as not to substantially impair movement or vision of the user.
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| Attorney, Agent or Firm: |
Leydig, Voit, Osann, Mayer & Holt, Ltd. ;
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| Primary / Asst. Examiners: |
Michell, Robert W.; Recla, Henry J.
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| Family: |
None
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First Claim:
Show all 24 claims |
I claim as my invention:
1. A surgical masking and ventilating system for protecting an operating zone from contaminants emanated by members of a surgical team comprising protective apparel for substantially isolating each said member from the environment of the operating zone, an aspirator, said aspirator having an enclosed housing with an inlet and an outlet, conduit means connecting said aspirator inlet to the interior of the protective apparel of each said member, a vacuum motor supported within said aspirator housing and having an inlet coupled to said housing inlet and an outlet communicating with the interior of said housing, said vacuum motor being operable to create a vacuum in said conduit means for drawing air and affluent contaminants within the apparel of each said member to said aspirator, a a blower motor supported within said housing and having an inlet communicating with the interior of said housing and an outlet coupled to said housing outlet for directing said air and contaminants from said aspirator, said vacuum motor having a relatively high vacuum generating capacity and a relatively low air directing capacity and said blower motor having a relatively high air directing capacity and relatively low vacuum generating capability, and high efficiency filter means connected to said blower outlet for filtering said air directed from said aspirator to a substantially contaminant free condition.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 94 U.S. patent(s) that reference this one
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