Injection equipment and medical liquid injecting system having same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8790306
APP PUB NO 20120253283A1
SERIAL NO

13515395

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is a injection equipment capable of alleviating the force required of a user to inject a medical liquid. A housing chamber S1 for extrusion and a housing chamber S2 for injection are mutually connected so that, when one of the chambers S1, S2 expands, the other one of the chambers contracts. As a result of switching a switching valve 9 to an open position in a state where at least a predetermined amount of the medical liquid is filled in the housing chamber S2, the housing chamber S2 for injection is contracted based on the expansion of the housing chamber S1 for extrusion according to the discharge pressure of the medical liquid pump 2 so as to deliver a predetermined amount of medical liquid.

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Patent Owner(s)

Patent OwnerAddress
DAIKEN IKI KABUSHIKI KAISHA6-1 DOSHOMACHI 3-CHOME CHUO-KU OSAKA-SHI 541-0045

International Classification(s)

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  • 2010 Application Filing Year
  • A61M Class
  • 3532 Applications Filed
  • 2664 Patents Issued To-Date
  • 75.43 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2010201120122013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiramatsu, Masaki Izumi, JP 1 1
Uruma, Masayuki Izumi, JP 6 2
Yamada, Keiichi Izumi, JP 115 1798

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Patent Citation Ranking

  • 0 Citation Count
  • A61M Class
  • 0 % this patent is cited more than
  • 11 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges87626338191123764228231685501 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650700

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 29, 2026