| 摘要 |
1277762 Blood sampling apparatus MICROMEDIC SYSTEMS Inc 16 July 1969 [26 July 1968] 35716/69 Heading A5R Apparatus is provided for obtaining a blood sample from a patient's finger using a collector device 15, Fig. 11, of the type disclosed in Specification 1277761 having a tube 32 and a resilient funnel member 35 with incisor lancets 38a, 38b, the apparatus having a mounting 12, Fig. 2, having a through passage 12c in which the collector 15 is supported, a striker mechanism having a releasable member 17 adapted to strike a lower end of tube 32 to force lancets 38a, b into a patients' finger placed over funnel 35, a finger holder 8, and means for periodically varying the intensity of clamping of said holder. Holder 8 is pivoted at 7 and has a pin 8c which during pivoting of the holder engages member 17, to pivot the latter against springs 14, and then releases member 17 which consequently strikes tube 32. Holder 8 is retained in its clamping position by engagement of teeth 8f with a grooved rod 29 on a lever 25, the degree of clamping being varied by a massaging-type movement of a finger support 6 on a lever 19 driven through an eccentric by a motor. The first drops of impure blood are absorbed by a pad 40 in funnel 35, the remaining sample passing into tube 32 until a light beam, passing through tube 32 from a source to a photo cell in mounting 12, is interrupted, whereupon a solenoid coil 23 is energised and attracts an armature 22 on a lever 21, the end of which lever thus becomes engageable with a projection 19a on lever 19 to move levers 21 and 25 thus releasing holder 8 which is acted on by a return spring 11, the actuation of the solenoid also stopping the motor. Holder 8 may alternatively be released and the motor stopped via a push button 4. In an alternative embodiment, Figs. 13-16 (not shown) the finger is clamped and massaged between a fixed swell (45) on a casing (42) and a sponge pad (46) secured to a stirrup (41) pivoted on an eccentrically driven pin (43). |
