Blood specimen apparatus

Abstract

Abstract A BLOOD SPECIMEN COLLECTING DEVICE COMPRISING CARTRIDGE MEANS FOR HOLDING A PLURALITY OF TEST TUBES, EACH OF WHICH IS CLOSED BY A SEALING MEANS DISPOSED IN ITS END, MEANS FOR RIGIDLY GRIPPING A FIRST CANNULA WHICH IS CONNECTED BY MEANS SUCH AS A FLEXIBLE TUBE TO A SECOND CANNULA SUITABLE FOR PENETRATING INTO A VEIN, DRIVE MEANS FOR PROVIDING RELATIVE RECIPROCATION BETWEEN THE GRIPPING MEANS AND THE CARTRIDGE MEANS TO PENETRATE SUCH FIRST CANNULA THROUGH SUCH SEALING MEANS, AND INDEXING MEANS FOR MOVING SAID CARTRIDGE MEANS RELATIVE TO SAID GRIPPING MEANS EACH TIME THERE IS CUH RELATIVE RECIPROCATION SEQUENTIALLY TO PLACE EACH SUCH SEALING MEANS ADJACENT SUCH FIRST CANNULA. A THIRD CANNULA CAN BE PROVIDED AND CONNECTED TO THE GRIPPING MEANS TO BE PENETRATED THROUGH SUCH SEALING MEANS WITH THE FIRST CANNULA, THIS THIRD CANNULA BEING CONNECTED TO A VACUUM PUMP MEANS EFFECTIVE AT LEAST PARTIALLY TO EVACUATE EACH TUBE INTO WHICH THE THIRD CANNULA IS PENETRATED. MEANS ARE PROVIDED FOR CONSTRICTING THE FLEXIBLE TUBE CONNECTING THE FIRST AND SECOND CANNULAE WHEN THE FIRST CANNULA IS NOT PENETRATED INTO A TEST TUBE, THIS CONSTRICTING MEANS BEING OPERATED BY THE RELATIVE MOVEMENT OF THE CARTRIDGE MEANS AND GRIPPING MEANS.

Inventors

• 👤 Robert H Grabhorn

Bibliographic Details