Title:
HEAT EXCHANGE SYSTEM FOR CARDIAC SURGERY REQUIRING CARDIOPLEGIC ARREST
Document Type and Number:
WIPO Patent Application WO/2018/018673
Kind Code:
A1
Abstract:
A heat exchange system for a cardiac surgery requiring cardioplegic arrest, comprising: an ice water tank (15), a primary circulation water tank (11), and a secondary circulation water tank (16). Side walls of the primary circulation water tank (11) and the secondary circulation water tank (16) are each provided with an overflow orifice. Each overflow orifice is connected to the ice water tank (15) through a circulation pipe (14). A first roller pump (12) is mounted on a first hose (13). A second roller pump (18) is mounted on a second hose (17). Water in the ice water tank (15) is pumped into the primary circulation water tank (11) and the secondary circulation water tank (16) through the first hose (13) and the second hose (17), respectively. The primary circulation water tank (11) is mounted on a first loop (5) and a second loop (6). The secondary circulation water tank (16) is mounted on a third loop (1). According to the heat exchange system, a conventional refrigeration device, i.e., a compressor, of a heat exchange water tank is replaced with the ice water tank (15), so that the cold source is high in safety and low in costs. All parts, in contact with water, of the ice water tank (15), the primary circulation water tank (11), the secondary circulation water tank (16), and conduits of the first to third loops (5, 6, 1) become disposable medical articles, so that breeding of bacteria is fundamentally avoided.
Inventors:
HU WEIWEN (CN)
BLUMENDELLER ULRICH (GB)
BLUMENDELLER ULRICH (GB)
Application Number:
PCT/CN2016/095632
Publication Date:
February 01, 2018
Filing Date:
August 17, 2016
Export Citation:
Assignee:
HU WEIWEN (CN)
BLUMENDELLER ULRICH (GB)
BLUMENDELLER ULRICH (GB)
International Classes:
A61M1/36
Domestic Patent References:
| WO1997019714A1 | 1997-06-05 | |||
| WO2016025268A2 | 2016-02-18 |
Foreign References:
| US5702358A | 1997-12-30 | |||
| CN204364514U | 2015-06-03 | |||
| CN2067159U | 1990-12-12 | |||
| US5269749A | 1993-12-14 |
Other References:
S HALLER ET AL.: "CONTAMINATION DURING PRODUCTION OF HEATER-COOLER UNITS BY MYCOBACTERIUM CHIMAERA POTENTIAL CAUSE FOR INVASIVE CARDIOVASCULAR INFECTIONS: RESULTS OF AN OUTBREAK INVESTIGATION IN GERMANY, APRIL 2015 TO FEBRUARY 2016", EUROSURVEILLANCE, vol. 21, no. 17, 28 April 2016 (2016-04-28)
GOTTING T; KLASSEN S; JONAS D ET AL.: "Heater-cooler units: contamination of crucial devices in cardiothoracic surgery.[J", JOURNAL OF HOSPITAL INFECTION, 2016
See also references of EP 3492121A4
GOTTING T; KLASSEN S; JONAS D ET AL.: "Heater-cooler units: contamination of crucial devices in cardiothoracic surgery.[J", JOURNAL OF HOSPITAL INFECTION, 2016
See also references of EP 3492121A4
Attorney, Agent or Firm:
TIANJIN CZTC IP FIRM (CN)
Download PDF: