公开(公告)号：WO2010005537A3

公开(公告)日：2010-03-25

申请号：PCT/US2009003947

申请日：2009-07-02

Applicant: SMITHS MEDICAL ASD INC ,  JOHNSON MICHAEL ,  HUGHES GREGORY

Inventor： JOHNSON MICHAEL ,  HUGHES GREGORY

IPC: A61F7/12 ,  A61M5/44

CPC classification number: F28F9/0253 ,  A61M5/44 ,  A61M2205/366 ,  F28D7/106

Abstract: A heat exchanger has a multi-lumen tubing having one end connected to a supply fitting and another end connected to a return fitting. The tubing has a central lumen, a middle lumen that surrounds the central lumen and an outer lumen that surrounds the middle lumen. The supply fitting has an inlet, an outlet and a proximal port wherethrough an infusate is input to the heat exchanger. The supply fitting is configured such that its inlet is connected to the central lumen, its outlet connected to the outer lumen, and its proximal port connected to the middle lumen of the tubing. The return fitting is configured to establish a through passage between the central lumen and the outer lumen of the tubing so that a heating fluid fed through the supply fitting to the central lumen is returned to the supply fitting by way of the outer lumen. The return fitting further has a distal port configured to connect to the central lumen of the tubing, so that the infusate fed to the proximal port of the supply fitting may be output from the distal port of the return fitting, after passing through the central lumen of the tubing. As the infusate traverses along the heat exchanger, it is heated by the heating fluid that flows along the central lumen, and also by the rerouted heating fluid that flows along the outer lumen of the tubing. The heat exchanger is fluidly coupled to a heater by its inlet and outlet so that the temperature of the heating fluid for warming the infusate is maintained at a predetermined temperature.

Abstract translation: 热交换器具有多腔管，其一端连接到供应配件并且另一端连接到回流配件。 该管具有中心内腔，围绕中心内腔的中间内腔和围绕中间内腔的外部内腔。 供应接头具有入口，出口和近端端口，通过该端口将输注物输入到换热器。 供应配件被构造成使得其入口连接到中心腔，其出口连接到外腔，并且其近端口连接到管的中间腔。 返回配件被配置为在管道的中央管腔和外部管腔之间建立贯穿通道，使得通过供应配件供应到中央管腔的加热流体经由外部管腔返回到供应配件。 返回配件进一步具有构造成连接到管道的中心内腔的远端口，以使得供应到供应配件的近端端口的注入物可以在穿过中心内腔之后从返回配件的远端口输出 的管道。 当输液沿着热交换器横贯时，其通过沿中心腔流动的加热流体加热，并且也通过沿管的外腔流动的重新排出的加热流体加热。 热交换器通过其入口和出口流体耦合到加热器，使得用于加热注入物的加热流体的温度保持在预定温度。

公开(公告)号：HK1159463A1

公开(公告)日：2012-08-03

申请号：HK12100043

申请日：2012-01-04

Applicant: SMITHS MEDICAL ASD INC

Inventor： JOHNSON MICHAEL ,  HUGHES GREGORY

IPC: A61F20060101 ,  A61M20060101

公开(公告)号：CA2730179A1

公开(公告)日：2010-01-14

申请号：CA2730179

申请日：2009-07-02

Applicant: SMITHS MEDICAL ASD INC

Inventor： JOHNSON MICHAEL ,  HUGHES GREGORY

IPC: A61F7/12 ,  A61M5/44

Abstract: A heat exchanger has a multi-lumen tubing having one end connected to a supply fitting and another end connected to a return fitting. The tubing has a central lumen, a middle lumen that surrounds the central lumen and an outer lumen that surrounds the middle lumen. The supply fitting has an inlet, an outlet and a proximal port wherethrough an infusate is input to the heat exchanger. The supply fitting is configured such that its inlet is connected to the central lumen, its outlet connected to the outer lumen, and its proximal port connected to the middle lumen of the tubing. The return fitting is configured to establish a through passage between the central lumen and the outer lumen of the tubing so that a heating fluid fed through the supply fitting to the central lumen is returned to the supply fitting by way of the outer lumen. The return fitting further has a distal port configured to connect to the central lumen of the tubing, so that the infusate fed to the proximal port of the supply fitting may be output from the distal port of the return fitting, after passing through the central lumen of the tubing. As the infusate traverses along the heat exchanger, it is heated by the heating fluid that flows along the central lumen, and also by the rerouted heating fluid that flows along the outer lumen of the tubing. The heat exchanger is fluidly coupled to a heater by its inlet and outlet so that the temperature of the heating fluid for warming the infusate is maintained at a predetermined temperature.