Connector for plasmapheresis bag

• US 4,790,567 A
• Filed: 12/22/1987
• Issued: 12/13/1988
• Est. Priority Date: 07/31/1985
• Status: Expired due to Fees

• Current Assignee: Kawasumi Laboratories Incorporated (Sumitomo Bakelite Company Limited)
• Original Assignee: Kawasumi Laboratories Incorporated (Sumitomo Bakelite Company Limited)
• Inventors: Ono, Toshihiko, Kawano, Yukihiro, Isobe, Yoshiyuki, Iga, Hirofumi, Juji, Tomishiro, Ono, Seiichi
• Primary Examiner(s): Arola, Dave W.
• Application Number:
  US07/136,860
• Time in Patent Office: 357 Days
• Field of Search: 285/330, 285/914, 285/12, 285/319, 285/320, 285/24, 285/331, 285/915, 285/921, 285/93, 128/204.18, 128/200.21, 128/771, 128/912, 604/7, 604/48, 604/6, 604/905, 604/175, 604/248, 604/110
• US Class Current: 285/24
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: Y10S 285/914 Irreversible
• CPC Class Codes: Y10S 285/915 Mastic
• CPC Class Codes: Y10S 285/921 Snap-fit

Abstract

The present invention is a connector to be provided on way of a blood restoring circuit of a plasmapheresis bag set, comprising a male connecting member and a female connecting member.

Each of the members is provided with a key ring of a structure in laminated layer, and the key rings are formed, at ends with a convex or a groove for having combination of the both members.

The connecting members are provided with positioning means therefor, and positionings of the convex or the groove of the key rings are adjusted per each of the connectors.

Claims

1. A plasmapheresis connector to be furnished on a tube path for restoring a blood component to a blood donor from a blood plasmapheresis bag set after a blood plasma component has been extracted from blood collected in a blood bag of the plasmapheresis bag set, the connector comprising:

a male connecting member and a female connecting member, each of said connecting members having a plurality of coaxially arranged rings of different diameters which radially overlap each other, said rings of said male connecting member corresponding diametrically with said rings of said female connecting member;

means for fixing said rings of said male connecting member against rotation relative to each other and to said male connecting member;

means for fixing said rings of said female connecting member against rotation relative to each other and to said female connecting member;

means for releasably keeping both of said connecting members together;

said releasably keeping means including hook connecting means formed on at least one of said connecting members and receiving means formed on the other of said connecting members, said receiving means being formed to receive and releasably retain said hook connecting means so as to releasably keep said connecting members together;

means for making said male and female connecting members compatible only with each other to avoid mismatch;

said making means including a projection extending longitudinally from each of said rings of both of said connecting members so that when said connecting members are brought together along a common axis, said projections on each of said rings of said male connecting member overlaps and locks against a respective one of said projections on said rings of said female connecting member so as to prevent said connecting members from being rotatable relative to each other; and

means for providing a flow path through said connecting members to accommodate a flow of the blood to be restored.

2. A connector as defined in claim 1, wherein said connecting members have a housing with a positioning means for positioning said connecting members for alignment with each other.

3. A connector as defined in claim 1, wherein each of said members has a plurality of two of said rings spaced radially apart from each other and being radially inside of said releasably keeping means, said projections being formed and arranged relative to each other and to said releasably keeping means so as to have at most one relative angular position in which said connecting members are releasably kept together out of a total of 72×

72×

72 different possible combinations of said relative angular positions.

4. A connector as defined in claim 1, wherein said releasably keeping means includes a plurality of two hook connecting means and two receiving means formed on said connecting members, said two hook connecting means being formed with different widths, said two receiving means being formed with corresponding widths so that said two hook connecting means is fittable on said two receiving means.

5. A plasmapheresis connector to be furnished on a tube path for restoring a blood component to a blood donor from a blood plasmapheresis bag set after a blood plasma component has been extracted from blood collected in a blood bag of the plasmapheresis bag set, the connector comprising:

a male connecting member and a female connecting member, each of said connecting members having a plurality of coaxially arranged rings of different diameters which radially overlap each other, said rings of said male connecting member corresponding diametrically with said rings of said female connecting member;

means for providing a flow path for the blood component to be restored, said providing means including two elongated communication tubes each extending longitudinally from each of said connecting members respectively, one of said two elongated communication tubes being formed and arranged to be insertable and fittable into the other of said two elongated communication tubes when said connecting members are brought together;

means for releasably keeping both of said connecting members together;

said releasably keeping means including hook connecting means formed on at least one of said connecting members and receiving means formed on the other of said connecting members, said receiving means being formed to receive and releasably retain said hook connecting means so as to releasably keep said connecting members together;

means for making said male and female connecting members compatible only with each other to avoid mismatch, said making means including a plurality of projections extending from said rings of both of said connecting members, each of said projections on said male connecting member being formed to overlap and lock against a respective one of said projections on said female connecting member so as to constitute compatible pairs of said projections and to prevent said connecting members from being rotatable relative to each other when said connecting members are brought together along a common axis and all of said compatible pairs of projections lock against each other simultaneously;

means for fixing said rings of one of said connecting members against rotation relative to said one connecting member and to each other after being rotated relative to each other into a distinct relative angular position; and

means for fixing said rings of the other of said connecting members against rotation relative to said other connecting member and to each other after being rotated relative to each other into a relative angular position corresponding to said distinct angular position.

6. A connector as defined in claim 5, wherein said connecting members have a housing with a positioning means for positioning said connecting members for alignment with each other.

7. A connector as defined in claim 5;

and further comprising;

means for sealing said flow path and including a sealing ring mounted on one of said two elongated communication tubes.

8. A connector as defined in claim 5, wherein each of said members has a plurality of two of said rings spaced radially apart from each other and being radially inside of said releasably keeping means, said projections being formed and arranged relative to each other and to said releasably keeping means so as to have at most one relative angular position in which said connecting members are releasably kept together out of a total of 72×

72×

72 different possible combinations of said relative angular positions.

9. A connector as defined in claim 5, wherein said releasably keeping means includes a plurality of two hook connecting means and two receiving means formed on said connecting members, said two hook connecting means being formed with different widths, said two receiving means being formed with corresponding widths so that said two hook connecting means is fittable on said two receiving means.

10. A plasmapheresis connector to be furnished on a tube path for restoring a blood component to a blood donor from a blood plasmapheresis bag set after a blood plasma component has been extracted from blood collected in a blood bag of the plasmapheresis bag set, the connector comprising:

a male connecting member and a female connecting member, each of said connecting members having a plurality of coaxially arranged rings of different diameters which radially overlap each other, said rings of said male connecting member corresponding diametrically with said rings of said female connecting member;

means for providing a flow path for the blood component to be restored, said providing means including two elongated communication tubes each extending longitudinally from each of said connecting members respectively, one of said two elongated communication tubes being formed and arranged to be insertable and fittable into the other of said two elongated communication tubes when said connecting members are brought together;

means for releasably keeping both of said connecting members together;

said releasably keeping means including hook connecting means formed on at least one of said connecting members and receiving means formed on the other of said connecting members, said receiving means being formed to receive and releasably retain said hook connecting means so as to releasably keep said connecting members together;

means for making said male and female connecting members compatible only with each other to avoid mismatch;

said making means including a projection extending from each of said rings of both of said connecting members, each of said projections on said male connecting member being formed to overlap and lock against a respective one of said projections of said female connecting member when said connecting members are brought together along a common axis;

means for fixing said rings of one of said connecting members against rotation relative to said one connecting members an to each other after being rotated relative to each other into a distinct relative angular position; and

means for fixing said rings of the other of said connecting members against rotation relative to said other connecting member and to each other after being rotated relative to each other into a relative angular position corresponding to said distinct relative angular position.

11. A connector as defined in claim 10, wherein said connecting members have a housing with a positioning means for positioning said connecting members for alignment with each other.

12. A connector as defined in claim 10;

and further comprising;

means for sealing said flow path and including a sealing ring mounted on one of said two elongated communication tubes.

13. A connector as defined in claim 10, wherein each of said members has a plurality of two of said rings spaced radially apart from each other and being radially inside of said releasably keeping means, said projections being formed and arranged relative to each other and to said releasably keeping means so as to have at most one relative angular position in which said connecting members are releasably kept together out of a total of 72×

72×

72 different possible combinations of said relative angular positions.

14. A connector as defined in claim 10, wherein said releasably keeping means includes a plurality of two hook connecting means and two receiving means formed on said connecting members, said two hook connecting means being formed with different widths, said two receiving means being formed with corresponding widths so that said two hook connecting means is fittable on said two receiving means.