Surgical puncturing device

• US 3,338,239 A
• Filed: 10/08/1964
• Issued: 08/29/1967
• Est. Priority Date: 10/08/1964
• Status: Expired due to Term

• Current Assignee: Wilson Mausteller John
• Original Assignee: Wilson Mausteller John
• Inventors: WILSON MAUSTELLER JOHN
• Application Number:
  US04/402,539
• Time in Patent Office: 1,055 Days
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150305 Packages specially adapted for piercing devices or blood sampling devices kits for diabetes A61M5/003; packaging in general B65D
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150496 Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150732 Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube,
• CPC Class Codes: A61B 5/15105 Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
• CPC Class Codes: A61B 5/15123 comprising magnets or solenoids
• CPC Class Codes: A61B 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin

Claims

1. A SURGICAL PUNCTURING DEVICE COMPRISING A CYLINDRICAL HOUSING HAVING AN END FACE, AN AXIAL BORE OPENING AT SAID END FACE, A PLUNGER WITHIN SAID AXIAL BORE EXTENDABLE BEYOND SAID END FACE, RESILIENT MEANS TO URGE SAID PLUNGER TO A RETRACTED POSITION AWAY FROM SAID END FACE, A PERMANENT MAGNET EMBEDDED IN SAID HOUSING AND HAVING AT LEAST ONE POLE SURFACE EXPOSED AT SAID END FACE, A REMOVABLE NEEDLE HAVING A SHAFT ADAPTED TO ENGAGE SAID BORE AND A DISC OF MAGNETIC MATERIAL MATCHING SAID END FACE AND SECURED TO SAID SHAFT, SAID DISC BEING NORMAL TO AND SPACED FROM THE ENDS OF SAID SHAFT.