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Browse by Category: Main > Health & Medicine
Class Information
Number: 604/209
Name: Surgery > Means for introducing or removing material from body for therapeutic purposes (e.g., medicating, irrigating, aspirating, etc.) > Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin > Material introduced or removed through conduit, holder, or implantable reservoir inserted in body > Means moved by person to inject or remove fluent material to or from body inserted conduit, holder, or reservoir > Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) > Having means for metering material flow to or from body > Including means for controlling piston stroke length > By rachet and pawl
Description: Subject matter wherein the piston moving means comprises a bar or wheel having teeth engaged by a propelling pawl.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8679069 Pen-type injector Mar. 25, 2014
8672893 Syringe with rotatable element, aspiration systems including the syringe, and associated methods Mar. 18, 2014
8647309 Medication delivery device Feb. 11, 2014
8641683 Injection device Feb. 4, 2014
8603044 Pen-type injector Dec. 10, 2013
8585656 Dose setting mechanism for priming a drug delivery device Nov. 19, 2013
8585657 Dispensing fluid from an infusion pump system Nov. 19, 2013
8579867 Medication delivery device Nov. 12, 2013
8579868 Medical delivery system with flexible blocking element Nov. 12, 2013
8562544 Pen type device for ultrasound guided fine needle aspiration cytology and biopsy Oct. 22, 2013
8529513 Device for metered administration of a liquid product Sep. 10, 2013
8529532 Reduced pressure therapy devices Sep. 10, 2013
8512296 Injection device Aug. 20, 2013
8512297 Pen-type injector Aug. 20, 2013
8500693 Autoinjector received in external socket Aug. 6, 2013
8486007 Injection device Jul. 16, 2013
8444606 Injection device May. 21, 2013
8439930 Dispensing instrument May. 14, 2013
8409148 Device for the dosed administration of a fluid product, provided with a coupling Apr. 2, 2013
8377004 Drug delivery pump drive using linear piezoelectric motor Feb. 19, 2013
8343101 Fluid driven medical injectors Jan. 1, 2013
8333739 Injection device Dec. 18, 2012
RE43834 Injection syringe Nov. 27, 2012
8281789 Cuffed medical tubes Oct. 9, 2012
8282607 Sleeve and micro-encapsulated topical analgesic for pain relief Oct. 9, 2012
8267900 Medication delivery device Sep. 18, 2012
8246584 Injection systems Aug. 21, 2012
8226631 Drive mechanisms suitable for use in drug delivery devices Jul. 24, 2012
8197450 Injection device Jun. 12, 2012
8187233 Medication delivery device May. 29, 2012
8177759 Medicament delivery device May. 15, 2012
8167834 Injection device May. 1, 2012
8123084 Rack and pinion drive for by-pass cartridge Feb. 28, 2012
8118780 Hydraulic remote for a medical fluid injector Feb. 21, 2012
8092420 Automatic reconstitution injector device Jan. 10, 2012
8052654 Automatically disabled syringe Nov. 8, 2011
8038655 Latching control device Oct. 18, 2011
8021345 Pen-type injector Sep. 20, 2011
7951113 Device for the dosed administration of a fluid product comprising a torsion spring drive May. 31, 2011
7922695 Drug delivery pump drive using linear piezoelectric motor Apr. 12, 2011
7918833 Pen-type injector Apr. 5, 2011
7905867 Pen-type injector Mar. 15, 2011
7867202 Threaded rod and dose setting mechanism for an injection device Jan. 11, 2011
7749200 Administration device comprising a priming function Jul. 6, 2010
7727201 Dosing device with priming function Jun. 1, 2010
7699815 Drive mechanism for an injection device Apr. 20, 2010
7678085 Injection device Mar. 16, 2010
7641637 Controlled volume injection/aspiration device Jan. 5, 2010
7563245 Syringe for powder medicament premixing Jul. 21, 2009
7470259 Dosage control syringe Dec. 30, 2008

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