Modular disinfector device

• US 4,388,521 A
• Filed: 07/02/1981
• Issued: 06/14/1983
• Est. Priority Date: 07/02/1981
• Status: Expired due to Term

• Current Assignee: Atrion (Atrion Corporation)
• Original Assignee: Ryder International Corporation (Atrion Corporation)
• Inventors: Thomas, Michael D., Ryder, Francis E.
• Primary Examiner(s): Richman, Barry S.
• Application Number:
  US06/279,805
• Time in Patent Office: 712 Days
• Field of Search: 422/307, 422/300, 422/301, 422/302, 422/28, 422/38, 219/386, 219/401, 219/521
• US Class Current: 219/521
• CPC Class Codes: A61L 12/04 Heat A61L12/06 takes precedence
• CPC Class Codes: A61L 2/04 Heat A61L2/08 takes precedence

Abstract

Modular lens disinfecting device comprises a plastic housing with a heater and a heat sink lining a portion of the cavity and pressing against opposed caps on a lens case within the housing, thereby transmitting heat to opposed lens cavities within the lens case. A radial flange on the lens case body projects laterally from the housing when the lens case is inserted into the housing, thereby to facilitate manipulation of the lens case upon insertion into or removal from the housing. In making the lens case, the parting plane for the mold that forms the lens case body is positioned so that flash at said plane is precluded from projecting into either of the lens chambers.

Claims

1. Modular lens disinfecting device comprising a plastic housing having front and rear ends and a cavity with a first pair of opposed walls, a metal heat sink lining said opposed walls and being presented toward said cavity, a second pair of opposed walls transverse to said first pair of walls and cooperating therewith to define a front opening into said cavity, said second pair of walls having slots extending from said opening toward said rear end to form additional openings into said cavity, electrically operating heating means in thermal relation with said heat sink, and a plastic lens case sized for removable insertion into said cavity through said front opening, said case having opposed surfaces engaging said heat sink and radial flange means projecting through said slots.

2. Device according to claim 1 in which said heating means is portioned between said front and rear ends outside of said cavity, and a part of said lens case projects outwardly of said front opening.

3. Modular lens disinfecting device comprising a housing having adjacent cavities, a barrier separating said cavities, a generally C-shaped heat sink lining at least part of one of said cavities and including opposed legs and a bight, the bight being presented to the other cavity and forming part of said barrier, electrical heating means in said other cavity and in thermally conductive relation with said bight, said one cavity being open at opposite sides and also open at an end thereof that is opposite to said barrier wall;

a lens case having a tubular body forming opposed contact lens-receiving chambers that are in communication, caps removably secured to opposite ends of said body and an annular flange on said body between said caps, said lens case being sized for removable placement in said one cavity such that the caps are in contact respectively with said legs to transfer heat from said heating means to said lens-receiving chambers, said annular flange projecting outwardly of said opposite sides to facilitate gripping of said lens upon removal from and insertion into said one cavity through said open end.

4. Device according to claim 3 in which said caps have flat end walls against which said legs are respectively in pressure engagement, said housing having a closure for said other cavity that is opposite to said barrier, electrical terminals projecting through said closure and in circuit-forming relationship with said heating means, and outward projecting heat-dissipating elements on said housing forming finger grippers for manipulating said housing.

5. A modular contact lens disinfector device for use with a compatibly shaped lens case, said device comprising:

a housing having adjacent cavities, barrier means separating said cavities, a first one of said cavities having an open end and at least two opposed wall portions with said lens case disposable in said first cavity through said open end;

a heat sink including a pair of opposed elongate legs extending substantially parallel and connected by a bight section, said opposed legs being disposed in said first cavity and providing a lining for at least a portion of the opposed walls of said first cavity, the bight section of said heat sink being disposed in the other of said cavities and forming at least a part of said barrier means;

electrical heating means housed in said other cavity in thermally conductive relation with said bight section;

said first cavity including the opposed legs of said heat sink having the open end thereof disposed opposite to said barrier means, and being sized such that said compatibly shaped lens case may be removably placed in said first cavity with the upper and lower surface portions thereof in sliding contact respectively with the opposed legs of said heat sink so that heat may be transferred from said electrical heating means to said heat sink, and from said heat sink to said lens case.

6. A device according to claim 5 wherein said one cavity further includes a second pair of opposed side walls that are not lined by said heat sink, said second pair of side walls having slots formed therein, such that said cavity can accommodate a lens case having a substantial annular flange portion designed to be disposed in said slots and to extend exteriorally of said cavity to facilitate gripping of the lens case upon removal from and insertion into said cavity.

7. A device according to claim 5 or 6, wherein said housing includes a closure for said other cavity that is disposed opposite said barrier, electrical terminal means projecting through said closure and in circuit forming relationship with said heating means, said terminal means including a pair of prong terminals of the type adapted for engagement in a conventional outlet socket.

8. A device according to claim 7, wherein said housing further includes outwardly projecting heat dissipating elements on a side thereof, which elements also serve to form finger grippers for manipulating the housing to and from engagement with said outlet socket.

9. A modular lens disinfecting device including a housing defining adjacent cavities, barrier means separating said cavities, a generally C-shaped heat sink lining at least part of one of said cavities and including the opposed parallel leg portions, and a bight portion, the bight portion being presented to the other cavity and forming part of said barrier, electrical heating means disposed in said other cavity, and in thermally conductive relation with said bight portion, said one cavity being open at an end opposite said barrier wall, closure means for said other cavity dispose oppositely of said barrier wall, and electrical terminal means in the form of conventional prong type terminals adapted for disposition in a conventional outlet socket and projecting through said closure and in circuit forming relationship with said heating means;

a lens case disposable in said one cavity, and including a tubular body having opposed contact lens receiving chambers, removable cap means secured to opposite ends of said body for closing said chambers, said lens case being sized for removable placement in said one cavity such that the caps thereof will be in heat conductive contact respectively with said legs to transfer heat from said heating means to said lens receiving chambers.

10. The combination according to claim 9, wherein said one cavity includes opposed side walls having slots formed therein, which slots open to the open end of said cavity, said lens case having an annular flange oriented transversely to the axis of said tubular body, such that upon disposition of said lens case in said cavity, said annular flange will be engaged in said slots in the opposed side walls, and will project outwardly of said opposed walls to facilitate gripping of the lens case upon removal from and insertion into the open end of said cavity.

11. The combination according to claim 9, wherein said lens case includes means dividing said chambers, which dividing means is defined by a lattice structure providing communication between the respective lens receiving chambers.

12. The combination according to claim 11, wherein said lattice structure is defined by an open grid comprised of intersecting strips of material that divide the body into opposed lens receiving chambers, said body and said lattice structure being of a one-piece molded plastic construction including a parting plane, said plane lying transversely of the longitudinal axis of said tubular body and passing through said joined strips which define said lattice and disposed at a location intermediate said chambers, such that any flash that may occur at said plane during the molding operation is precluded from projecting into either of said chambers.