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    • 1. 发明授权
    • Needleless syringe
    • 无针注射器
    • US07547292B2
    • 2009-06-16
    • US10466076
    • 2002-01-11
    • Colin David SheldrakeGeorge CostiganBrian John Bellhouse
    • Colin David SheldrakeGeorge CostiganBrian John Bellhouse
    • A61M5/30
    • A61M5/3015A61M5/2053A61M5/3007A61M2005/005
    • A method of distributing particles in a flow of gas and a needleless syringe for use in the needleless injection of particles into the skin or mucosa of a vertebrate subject are disclosed. The syringe includes a convergence which reduces pressure of the gas flowing in the gas flow path due to the Venturi effect such that particles initially located outside of the gas flow path are drawn into the gas flow path under the action of the reduced pressure and become entrained in the gas. An exit nozzle accelerates the particles so entrained. In another aspect of the invention, there is provided a method of creating a gas flow in a needleless syringe which comprises flowing gas through a first convergence into a chamber to form a transsonic gas jet in the chamber and passing the gas jet from the chamber into a second convergence and along the nozzle.
    • 公开了一种在气体和无针注射器中分配颗粒的方法,用于无脊椎动物注射到脊椎动物对象的皮肤或粘膜中。 注射器包括会聚,其减少由于文丘里效应而在气体流动路径中流动的气体的压力,使得最初位于气体流动路径外部的颗粒在减压作用下被吸入气体流动路径并被夹带 在气中。 出口喷嘴加速如此夹带的颗粒。 在本发明的另一方面,提供了一种在无针注射器中产生气流的方法,该方法包括将气体通过第一会聚流入腔室中,以在腔室中形成经络气体射流,并将气体射流从腔室送入 沿着喷嘴的第二个会聚。
    • 9. 发明申请
    • Nasal Delivery Devices
    • 鼻输送装置
    • US20080289629A1
    • 2008-11-27
    • US11663099
    • 2005-09-15
    • Per Gisle DjupeslandRoderick Peter HafnerColin David Sheldrake
    • Per Gisle DjupeslandRoderick Peter HafnerColin David Sheldrake
    • A61M15/08
    • A61M15/002A61M15/0008A61M15/0021A61M15/0028A61M15/0035A61M15/0041A61M15/0045A61M15/0086A61M15/0091A61M15/0098A61M15/08A61M16/1055A61M16/1065A61M16/1075A61M2202/064
    • A nasal delivery device for and method of delivering substance to a nasal cavity of a subject, the delivery device comprising: a container-receiving unit comprising a container chamber for receiving a substance-containing container which contains substance to be delivered to the nasal cavity of the subject, the container chamber including an inlet and an outlet; a nosepiece unit including a nosepiece for fitting to a nasal cavity of the subject and being in fluid communication with the outlet of the container chamber; a mouthpiece unit including a mouthpiece in fluid communication with the inlet of the container chamber and through which the subject in use exhales, such as to entrain substance from the container and deliver the same through the nosepiece; and moisture-mitigation means for mitigating an effect of moisture in an exhaled breath on the entrainment of substance from the container, which means are provided, for example, by providing the container in a replaceable container-containing member, by a pressure-sensitive valve which normally closes the fluid connection between the container chamber and the mouthpiece, and a temperature regulator upstream of the container chamber.
    • 一种用于将物质递送到受试者鼻腔的鼻输送装置和方法,所述输送装置包括:容器接收单元,其包括用于接收含物质的容器的容器室,所述容器容纳物容纳要输送到鼻腔的物质 所述物体,所述容器室包括入口和出口; 鼻梁单元,其包括用于装配到被检体的鼻腔并与容器室的出口流体连通的鼻梁; 接口单元,其包括与容器室的入口流体连通的接口,并且被吸入物体通过其吸入,从而将物质夹带在容器中并将其传送通过喷嘴; 以及用于减轻呼出气中的湿气对来自容器的物质夹带的影响的减湿装置,该装置例如通过将容器设置在可更换容器的构件中,通过压敏阀 其通常关闭容器室和接口之间的流体连接,以及容器室上游的温度调节器。