公开(公告)号：US07267667B2

公开(公告)日：2007-09-11

申请号：US10193376

申请日：2002-07-11

Applicant: Eric Houde ,  Mark VanDiver ,  Colin P. Hart ,  Valerie M. Castora ,  Kathryn M. Albert

Inventor： Eric Houde ,  Mark VanDiver ,  Colin P. Hart ,  Valerie M. Castora ,  Kathryn M. Albert

IPC: A61M1/00

CPC classification number: A61M5/007 ,  A61M5/16827 ,  A61M39/10 ,  A61M39/22 ,  A61M2205/3344 ,  A61M2205/3362 ,  G06F19/00

Abstract: A fluid injection system is disclosed The system is adapted to employ first and second injectors which may sequentially, or simultaneously, inject first and second fluids into a patient via a catheter. The first and second injectors may be power actuated. The actuation of the injectors may be controlled via a controller of the system. The user may be provided with an operator interface module to enable the control of the system to be affected during operation. A separate waste line may be provided to drain the system effectively and efficiently. A pressure sensor may be provided proximate the catheter to reduce pressure signal wave dampening and fluid waste.

Abstract translation: 公开了一种流体注射系统。该系统适于采用可以依次或同时地将第一和第二流体经由导管注射到患者体内的第一和第二注射器。 第一和第二注射器可以被动力驱动。 注射器的致动可以通过系统的控制器来控制。 用户可以设置有操作者接口模块，以使得在操作期间能够对系统的控制进行影响。 可以提供单独的废液管线来有效地排出系统。 可以在导管附近设置压力传感器以减少压力信号波浪衰减和流体浪费。

公开(公告)号：US06699232B2

公开(公告)日：2004-03-02

申请号：US09797473

申请日：2001-03-01

Applicant: Colin P. Hart ,  Valerie M. Castora

Inventor： Colin P. Hart ,  Valerie M. Castora

IPC: A61M2500

CPC classification number: A61M5/44 ,  A61M5/007 ,  A61M5/1408

Abstract: An apparatus and method for manually injecting fluid into a patient with improved contrast visualization are disclosed. The apparatus includes a syringe having a cylinder in which a plunger is reciprocatingly mounted. The syringe is connected to a manifold which itself is connected to a source of radiopaque contrast. Retraction of the plunger within the cylinder draws contrast into the cylinder, and depression of the plunger forces the contrast through the manifold and into a patient through a catheter. In order to increase the speed of injection and thus the visualization of the contrast, an improved visualization device is provided which may be provided in the form of a heater or, alternatively, in the form of an expandible catheter. The heater may be positioned anywhere within the apparatus to elevate the temperature of the contrast material, which in turn reduces its viscosity and thereby increases the speed with which fluid may be injected. The expandible catheter, may be used to restrict blood flow through a vascular structure so that the contrast material may be injected into the patient with lessened resistance and dilution from blood flow.

Abstract translation: 公开了一种用于以改进的对比度可视化手段将流体注入患者体内的装置和方法。 该装置包括具有圆筒的注射器，柱塞往复安装在该圆筒中。 注射器连接到歧管，歧管本身连接到不透射线的对比源。 气缸内的柱塞回缩将对比度提升到气缸中，并且柱塞的下压迫使对比度通过歧管并通过导管进入患者体内。 为了提高注射速度并因此增加对比度的可视化，提供了一种改进的可视化装置，其可以以加热器的形式提供，或者以可扩张导管的形式提供。 加热器可以定位在装置内的任何地方以提高对比材料的温度，这又降低了其粘度，从而增加了可以注入流体的速度。 可扩张的导管可以用于限制血管通过血管结构，从而使血液流动的抗性降低和稀释可以将对比剂材料注射到患者体内。