Sterile trap accessory for use with surgical aspirator
First Claim
1. A trap, for selective use as a component of a dental or surgical evacuation system, which system includes an aspirator and a flexible suction conduit as other components thereof;
- in which evacuation system said suction conduit includes means at one end defining a coupling orifice, said aspirator includes means at one end defining a coupling nipple, and said conduit coupling orifice and said aspirator coupling nipple are configured for coacting coupling and sealing engagement with each other;
said trap comprisingan elongated housing having means defining a cylindrical coupling nipple at one end, having an outer diameter of 7/16 inch;
said housing having a through passage, including a small bore portion at said one end passing through said nipple, and including a cylindrical counter bore opening to the end of said housing opposite from said nipple;
a retainer having a cylindrical body dimensioned to be received in said housing counterbore with a sliding sealing fit, and having radially enlarged gripping means at one end for manipulating the retainer relative to said housing;
said retainer having an axial through passage including means defining a coupling orifice at said one end;
said retainer coupling orifice being defined by a bore having a 7/16 inch taper;
a filter element confined in said housing by said retainer;
said filter element traversing said housing through passage and defining, with said housing and said retainer, a collection chamber;
said housing coupling nipple being configured for coacting frictional coupling and sealing engagement with said conduit coupling orifice, the coupling orifice of which is defined by a bore having a 7/16 inch taper and is a counterpart of said retainer coupling orifice; and
said retainer coupling orifice being configured for coacting frictional coupling and sealing engagement with said aspirator coupling nipple, the coupling nipple of which has an outer diameter of 7/16 inch and is a counterpart of said housing coupling nipple.
0 Assignments
0 Petitions
Accused Products
Abstract
A trap accessory, for selective coupling between a suction conduit and an aspirator includes: an elongated housing having a through passage; an elongated retainer slidably received in the housing passage, and having a through passage; and a filter element retained in the housing passage by said retainer. The housing is provided with a coupling nipple for coupling to a complementary coupling orifice in the suction conduit; and the retainer is provided with a coupling orifice for coupling to a complementary coupling nipple of the aspirator. The suction conduit and suction appliance have complementary coupling members, and are adapted to be coupled directly together in the absence of the trap accessory.
157 Citations
8 Claims
-
1. A trap, for selective use as a component of a dental or surgical evacuation system, which system includes an aspirator and a flexible suction conduit as other components thereof;
- in which evacuation system said suction conduit includes means at one end defining a coupling orifice, said aspirator includes means at one end defining a coupling nipple, and said conduit coupling orifice and said aspirator coupling nipple are configured for coacting coupling and sealing engagement with each other;
said trap comprisingan elongated housing having means defining a cylindrical coupling nipple at one end, having an outer diameter of 7/16 inch;
said housing having a through passage, including a small bore portion at said one end passing through said nipple, and including a cylindrical counter bore opening to the end of said housing opposite from said nipple;a retainer having a cylindrical body dimensioned to be received in said housing counterbore with a sliding sealing fit, and having radially enlarged gripping means at one end for manipulating the retainer relative to said housing;
said retainer having an axial through passage including means defining a coupling orifice at said one end;
said retainer coupling orifice being defined by a bore having a 7/16 inch taper;a filter element confined in said housing by said retainer;
said filter element traversing said housing through passage and defining, with said housing and said retainer, a collection chamber;said housing coupling nipple being configured for coacting frictional coupling and sealing engagement with said conduit coupling orifice, the coupling orifice of which is defined by a bore having a 7/16 inch taper and is a counterpart of said retainer coupling orifice; and
said retainer coupling orifice being configured for coacting frictional coupling and sealing engagement with said aspirator coupling nipple, the coupling nipple of which has an outer diameter of 7/16 inch and is a counterpart of said housing coupling nipple. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- in which evacuation system said suction conduit includes means at one end defining a coupling orifice, said aspirator includes means at one end defining a coupling nipple, and said conduit coupling orifice and said aspirator coupling nipple are configured for coacting coupling and sealing engagement with each other;
Specification