公开(公告)号：US11672911B2

公开(公告)日：2023-06-13

申请号：US16626291

申请日：2018-06-27

申请人： DAICEL CORPORATION

发明人： Takamasa Suzuki ,  Shingo Atobe ,  Hiroshi Miyazaki ,  Hiromitsu Iga ,  Katsuya Miki

IPC分类号： A61M5/178 ,  A61M5/20 ,  A61M5/30

CPC分类号： A61M5/2046 ,  A61M5/2053 ,  A61M5/30 ,  A61M2205/3331 ,  A61M2205/50 ,  A61M2205/8206

摘要： A needleless injector pressurizes a substance to be injected having an ejection pressure defined as a pressure of the substance to be injected ejected through an ejection port. The ejection pressure is raised to a first peak pressure after pressurizing is started, is lowered to a pressure lower than the first peak pressure afterward, and then is raised to a second peak pressure again. An on-completion reached depth that is an on-completion reached depth of the substance when the pressurizing portion completes pressurizing is adjustable, the on-completion reached depth being increased along with increase of the first peak pressure and being increased along with reduction of a length between peaks from a first timing at which the ejection pressure reaches the first peak pressure to a second timing at which the ejection pressure reaches the second peak pressure.

公开(公告)号：US12083320B2

公开(公告)日：2024-09-10

申请号：US16968078

申请日：2019-02-08

申请人： DAICEL CORPORATION

发明人： Katsuya Miki ,  Shingo Atobe ,  Hiroshi Miyazaki ,  Ayano Suzuki ,  Yuko Sakaguchi

IPC分类号： A61M5/30 ,  A61M5/20 ,  A61M11/02 ,  A61M11/00 ,  A61M11/06

CPC分类号： A61M5/30 ,  A61M5/2046 ,  A61M11/02 ,  A61M11/001 ,  A61M11/06

摘要： This application relates to an injector in which when a solution containing biomolecules is injected into an injection target, a proportion of biomolecules that function in the injection target with respect to the injected biomolecules is large. This application also relates to a method of injecting a solution containing biomolecules into an injection target using the injector. In one aspect, the injector injects the solution containing biomolecules into the injection target from an injector main body without performing injection through a given structure in a state where the given structure is inserted into the injection target. The injector may include an accommodation unit and a nozzle unit, wherein the injector satisfies a given condition.