WO2005075922A1 - 熱交換器、その製造方法及び人工心肺装置 - Google Patents
熱交換器、その製造方法及び人工心肺装置 Download PDFInfo
- Publication number
- WO2005075922A1 WO2005075922A1 PCT/JP2005/001757 JP2005001757W WO2005075922A1 WO 2005075922 A1 WO2005075922 A1 WO 2005075922A1 JP 2005001757 W JP2005001757 W JP 2005001757W WO 2005075922 A1 WO2005075922 A1 WO 2005075922A1
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- WIPO (PCT)
- Prior art keywords
- housing
- pipes
- seal member
- fluid
- heat exchange
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1698—Blood oxygenators with or without heat-exchangers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3623—Means for actively controlling temperature of blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/369—Temperature treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1653—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/366—General characteristics of the apparatus related to heating or cooling by liquid heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
Definitions
- the present invention relates to a heat exchanger, particularly a heat exchanger used for medical equipment such as a heart-lung machine, a method for manufacturing the same, and a heart-lung machine using the same.
- a heart-lung machine In cardiac surgery, a heart-lung machine is used to stop a patient's heart and substitute for respiratory and circulatory functions during the operation. It is also necessary to reduce and maintain the patient's body temperature during surgery to reduce the patient's oxygen consumption. For this reason, the heart-lung machine is equipped with heat exchange to control the temperature of the blood drawn from the patient.
- a bellows tube type heat exchanger for example, see Non-Patent Document 1
- a multi-tube type heat exchanger for example, see Patent Document 1
- the multi-tube heat exchanger has the same equipment volume as the bellows tube type heat exchanger, so a large heat exchange area can be obtained.
- the exchange rate is high. For this reason, it is thought that the adoption of a multi-tube heat exchanger can contribute to downsizing of the human heart-lung machine.
- FIG. 10 is a diagram showing a conventional multi-tube heat exchanger, in which FIG. 10 (a) is a top view and FIG. 10 (b) is a front view.
- FIG. 11 is a perspective view showing a tube and a seal member constituting the conventional multi-tube heat exchanger shown in FIG.
- the heat exchanger shown in Fig. 10 is a medical heat exchanger.
- a conventional multi-tube heat exchanger includes a plurality of tubes 31 through which blood taken from a patient flows, a housing 32 for housing the tubes 31, It has seal members 33a and 33b.
- the seal members 33a and 33b are provided at the ends of the plurality of tubes 31, respectively, and seal cold and hot water (heat medium) flowing on the surfaces of the tubes 31.
- the plurality of pipes 31 are placed in the housing 32 by the It is fixed.
- the plurality of pipes 31 are regularly arranged at an equal pitch as shown in FIGS. 10 and 11 in order to improve the heat exchange rate.
- the arrows in FIG. 10 (a) indicate the direction of blood flow
- the arrows in FIG. 10 (b) indicate the direction of flow of cold and hot water.
- the space between the seal member 33a and the seal member 33b in the housing 32 is a flow path for cold and hot water.
- the sealing members 33a and 33b are formed so as to be in close contact with the inner surface of the housing 32 and the outer surfaces of the plurality of pipes 31, so that cold and hot water flowing through the flow path is sealed.
- the housing 32 is provided with an inlet 34 and an outlet 35 for the hot and cold water so as to align with the opening of the flow passage for the hot and cold water.
- the heat exchange shown in Figs. 10 and 11 is produced by the following procedure. First, a plate (not shown) provided with a plurality of through holes is prepared, and the tube 31 is inserted into each through hole (not shown) of the plate. Next, in this state, the plurality of tubes 31 are housed in the housing 32, and the first potting is performed. Further, by performing the second potting with the plate removed, the seal members 33a and 33b are completed, and the multi-tube heat exchanger shown in FIGS. 10 and 11 is obtained.
- Patent Document 1 JP-A-11-47269 (FIGS. 4 and 10)
- Non-Patent Document 1 “TRILIUM 'Affiliate' Oxidieneta (TRILIUM
- the multi-tube heat exchange shown in FIGS. 10 and 11 has an advantage that the heat exchange rate is higher than that of the bellows heat exchange. As described above, it is necessary to arrange a plurality of pipes 31 at regular intervals at regular intervals. There is a problem that the manufacturing cost is higher than the heat exchange of the bellows type. Such an increase in the cost of heat exchange causes an increase in the cost of the heart-lung machine, which in turn increases the medical expenses and increases the burden on the patient.
- the pressure of cold / hot water (heat medium) is usually higher than the pressure of blood. For this reason, if a seal leak occurs in the seal members 33a and 33b, the cold and hot water penetrates into the inside of the tube 31 and the oxygenator (not shown) connected to the opening on the blood outlet side of the tube 31. May contaminate the blood.
- An object of the present invention is to solve the above-mentioned problems, and to suppress the contamination of the fluid flowing inside the pipe or the fluid flowing on the surface of the pipe due to seal leakage, and to reduce the manufacturing cost.
- An object of the present invention is to provide a method of manufacturing heat exchange which can achieve the following.
- the heat exchange according to the present invention is characterized in that a plurality of pipes through which a first fluid passes, a housing for accommodating the pipes, and a second pipe which flows through the surfaces of the plurality of pipes are provided. At least a sealing member for sealing the second fluid, wherein the housing has an inlet for guiding the second fluid into the housing, and discharges the second fluid from the housing.
- a plurality of pipes are disposed in the housing in parallel with each other, and the sealing member is provided at one end of the plurality of pipes.
- the third seal member is provided with the first seal member.
- a gap is provided between the second seal member and the second seal member, and forms a flow passage that guides the second fluid guided from the inlet to the first outlet.
- the second discharge port is provided in the housing so as to communicate with the gap.
- a method for producing heat exchange includes a plurality of pipes through which a first fluid passes, and a cylindrical housing. Is an inlet for introducing a second fluid into the housing and an outlet for discharging the second fluid. (A) disposing the plurality of pipes at intervals so that the central axes of the respective pipes are located on the same plane. The step of arranging the plurality of pipes in parallel and (b) fixing the plurality of pipes in an arrayed state by a band-shaped fixing member surrounding all of the plurality of pipes along a direction perpendicular to the central axis.
- Forming a heat exchange module by bringing the fixing members of each tube group into close contact with the fixing members of another tube group vertically adjacent thereto in the central axis direction.
- a heart-lung machine according to the present invention is characterized by including the heat exchanger according to the present invention.
- a heat exchanger and a heart-lung machine capable of suppressing contamination of a fluid flowing inside a tubular body or a fluid flowing along the tubular body surface by seal leakage.
- a method of manufacturing a heat exchanger that can manufacture a multi-tube heat exchanger at low manufacturing cost.
- FIG. 1 is a diagram showing a configuration of an example of a heat exchanger according to the present invention.
- FIG. 1 (a) is a top view
- FIG. 1 (b) is a side view
- FIG. 1 (c) is a front view. Is shown.
- FIG. 2 is a perspective view showing the inside of a housing in the heat exchanger shown in FIG. 1, and is partially shown in a cross section.
- FIG. 3 is a view showing a tube group constituting the heat exchange module, wherein FIG. 3 (a) is a top view, FIG. 3 (b) is a front view, and FIG. 3 (c) is a perspective view.
- FIG. 4 is a view showing a heat exchange module, wherein FIG. 4 (a) is a top view, FIG. 4 (b) is a front view, and FIG. 4 (c) is a perspective view.
- FIG. 5 is an exploded perspective view showing a housing.
- FIG. 6 is a view showing a state in which the heat exchange module shown in FIG. 4 is arranged in the nozzle shown in FIG. 5, where FIG. 6 (a) is a top view, FIG. 6 (b) is a front view, and FIG. ) Is shown in a perspective view.
- FIG. 7 is a top view showing a state in which a housing is attached to a jig for forming a seal member.
- FIG. 8 is a cross-sectional view illustrating a step of forming a seal member.
- FIG. 9 is a cross-sectional view illustrating a configuration of an example of a heart-lung machine according to the present invention.
- FIG. 10 is a view showing a conventional multitubular heat exchanger, in which FIG. 10 (a) is a top view and FIG. 10 (b) is a front view.
- FIG. 11 is a perspective view showing a tube and a seal member constituting the conventional multi-tube heat exchanger shown in FIG. 1.
- the heat exchange according to the present invention includes a plurality of pipes through which a first fluid passes, a housing accommodating the pipes, and a seal for sealing a second fluid flowing on the surfaces of the plurality of pipes.
- a housing for guiding the second fluid into the housing, a first outlet for discharging the second fluid to the housing, and a first outlet.
- a flow path for guiding the second fluid guided from the inlet to the first outlet is provided, so that a gap is formed between the inlet and the second outlet; It is provided on the housing so as to communicate with the gap.
- the heart-lung machine according to the present invention has the heat exchange according to the present invention.
- the flow path of the second fluid is formed in a cylindrical shape, and the inlet and the first outlet are formed in a circular shape. It is preferable that the opening of the second fluid in the flow channel is aligned with the inlet and the first outlet.
- the plurality of pipes may be obtained by connecting the cross-sectional centers of three adjacent pipes in a cross section perpendicular to the center axis direction of the pipes. It is preferable that the figures to be drawn are arranged so as to form an equilateral triangle.
- the second fluid passing through the flow path is blood, and the heat exchanger forms a part of a heart-lung machine. .
- a method for producing heat exchange according to the present invention includes a plurality of pipes through which a first fluid passes, and a cylindrical housing, and a second fluid is provided on a side wall of the housing inside the housing.
- a method for manufacturing a heat exchanger wherein an inlet for introducing the fluid and an outlet for discharging the second fluid are formed, and (a) connecting the plurality of tubes to each of the tubes.
- the plurality of pipes are fixed in an arrayed state and integrated, and at this time, at least two fixing members are arranged at intervals along the central axis direction to form a pipe group. And (c) preparing a plurality of the tube groups and stacking them, and at this time, fixing the fixing member of each tube group.
- a step of forming a heat exchange module by closely contacting the fixing member of another vertically adjacent group of tubes in the central axis direction, and (d) aligning the central axis with the longitudinal axis of the housing.
- (C) accommodating the heat exchange module in the housing, and at this time, adhering or adhering a portion of the fixing member, which is exposed on the surface of the heat exchange module, to the inner surface of the housing in each of the tube groups;
- a flow path for guiding the second fluid introduced from the introduction port to the discharge port is formed in a space surrounded by the two fixing members of each tube group. At least a step of filling a resin material, or a step of filling a resin material into a gap between the tubes between the opening of the housing and the fixing member of each tube group.
- step (b) in the step (b), four fixing members in each of the tube groups are arranged at intervals along the central axis direction.
- the two fixing members located on the inside are arranged so that the inlet and the outlet can be located between them, and in the step (e), the respective ones of the tube groups in the housing are disposed.
- the inlet and the outlet are formed in a circular shape at positions opposing each other, and in the step (e), the pipe group of the tube group in the housing is formed.
- the filling of the resin material into the space surrounded by the two fixing members located inside is performed while rotating the housing around an axis passing through the center of the inlet and the center of the outlet. Is preferred.
- the stack of the plurality of tube groups may be stacked in a cross section perpendicular to the axial direction of the plurality of tube members.
- a figure obtained by connecting the cross-sectional center of each of the plurality of pipes in each pipe group with the cross-sectional center of two pipes in another upper or lower layer pipe group closest to the pipe body is obtained. , Which is done to form an equilateral triangle, preferably.
- the step (a) and the step (b) may include a plurality of first grooves in which the plurality of pipes can be arranged.
- the process is performed using an upper mold and a lower mold in which a plurality of first grooves and a second groove that intersects perpendicularly are formed.
- the arrangement of the plurality of pipes is performed. This is performed by arranging the plurality of pipes in each of the plurality of first grooves formed in either the upper mold or the lower mold.
- the fixing is performed.
- the integration by the member joins the upper mold and the lower mold, and is formed by the second grooves of the upper mold and the lower mold. It is preferable that the fixing is performed by injecting a resin material into the defined space and subjecting the fixing member to injection molding.
- the resin material used for the injection molding of the fixing member used in the step (b) is a polycarbonate resin or a salt resin. It is a dang vinyl resin, and the resin material used in the step (e) is preferably a polyurethane resin or an epoxy resin.
- FIG. 1 is a diagram showing a configuration of an example of a heat exchanger according to the present invention.
- FIG. 1 (a) is a top view
- FIG. 1 (b) is a side view
- FIG. 1 (c) is a front view. Is shown.
- FIG. 2 is a perspective view showing the inside of the housing in the heat exchanger shown in FIG. 1, and is partially shown in cross section.
- the heat exchanger includes a plurality of pipes 1 through which a first fluid passes, a housing 2 accommodating the pipes 1, and a surface of the plurality of pipes 1. And sealing members 3a to 3c for sealing a second fluid flowing through the sealing member.
- a plurality of pipes 1 are arranged in a housing 2 in parallel with each other.
- the plurality of tubes 1 are three-dimensionally arranged. Specifically, in a cross section perpendicular to the central axis direction of the tubular body 1, the plurality of tubular bodies 1 form an equilateral triangle by connecting the cross-sectional centers of three adjacent tubular bodies 1 to each other.
- the tubes 1 in the upper layer and the rows of the tubes 1 adjacent to each other in the lower layer are arranged in a vertical direction! / (b)).
- the arrangement of the plurality of tubes 1 is not limited to the examples shown in Figs. 1 and 2.
- the cross sections of the plurality of pipes 1 are arranged in a matrix, that is, the row of the upper pipe 1 and the row of the adjacent pipe 1 in the lower layer.
- the pipes 1 may be arranged so as to be arranged in the vertical direction.
- the plurality of pipes 1 are divided into an upper row of pipes 1 and an adjacent row of lower pipes 1.
- Each tube 1 vertically Do not line up along! / /.
- the housing 2 is provided with an inlet 4 for guiding the second fluid into the housing, and a first outlet 5 for discharging the second fluid also from the housing.
- the inlet 4 is an inlet in a flow path 8 of a second fluid described later
- the first outlet 5 is an outlet in a flow path 8 of a second fluid described later.
- the housing 2 is formed in a tubular shape having a rectangular cross section, and the inlet 4 and the outlet 5 are provided on opposing side walls of the housing and the housing, respectively. .
- the inlet 4 and the first outlet 5 are aligned with the openings of the flow passage 8.
- “the inlet 4 and the first outlet 5 are aligned with the opening of the flow path 8” means that the inlet 4 and the first outlet 5 are the same as the opening of the flow path 8.
- the present invention is not limited to this case, and it is sufficient if the inlet 4 and the first outlet 5 communicate with the opening of the flow channel 8.
- the cross-sectional shape of the housing 2 is not limited to the rectangular shape shown in FIG. 1, and can be appropriately set according to the arrangement of the plurality of pipes 1.
- the cross section of the housing 2 may be a polygon other than a rectangle or a circle.
- the positions where the inlet 4 and the first outlet 5 are formed are not particularly limited. However, from the viewpoint of improving the heat exchange rate, it is preferable that the inlet 4 and the first outlet 5 are formed at positions facing each other in the housing 2 as shown in FIGS.
- the seal member includes a first seal member 3a located on one end side of the plurality of pipes 1, and a second seal member located on the other end side. It includes a seal member 3b, and a third seal member 3c located between the first seal member 3a and the second seal member 3b. The first seal member 3a, the second seal member 3b, and the third seal member 3c seal between the tubes 1.
- the third seal member 3c is provided such that a gap 7 is formed between the third seal member 3c and the first seal member 3a and between the third seal member 3c and the second seal member 3b.
- the third seal member 3c forms a flow path 8 for guiding the second fluid guided from the inlet 4 into the housing 2 to the first discharge outlet 5.
- the third seal member 3c functions as a seal for the second fluid.
- the housing 2 is provided with a second discharge port 6 so as to communicate with the gap 7 (see FIG. 1 (b)).
- the seal members located at the ends of the plurality of pipes 1
- a seal member (third seal member 3c) forming the flow path 8 of the second fluid is provided separately.
- a gap 7 is formed between the first seal member 3a and the flow path 8 of the second fluid, and between the second seal member 3b and the flow path 8 of the second fluid.
- the first fluid flowing through the pipe 1 enters the flow path 8, and the second fluid flowing through the flow path 8 enters the pipe 1.
- Safety mechanisms are provided to control intrusion. Further, by monitoring the discharge of the fluid from the second discharge port 6, it is possible to detect the leakage of the seal. Further, by examining the fluid discharged at this time, the force at which the seal leak occurs at any seal member can be determined.
- the cross-sectional shape of the flow channel 8 and the shape of the inlet 4 and the first outlet 5 are different.
- the shape is circular. This is because the formation of a circular shape can suppress the occurrence of thrombus in the flow channel 8, the inlet 4, and the first outlet 5.
- the cross-sectional shape of the flow channel 8 and the shapes of the inlet 4 and the first outlet 5 are rectangular or other polygonal shapes. May be formed.
- the heat exchanger obtained by the manufacturing method described below is the same as the heat exchanger shown in FIGS. 1 and 2, and includes a plurality of pipes 1 through which the first fluid passes, and a cylindrical pipe.
- a housing 2 and seal members 3a to 3c are provided.
- an inlet 4 for guiding the second fluid into the nozzle and a first outlet 5 for discharging the second fluid are formed on the side wall of the housing 2.
- the seal member is constituted by three seal members 3a-3c formed with a gap 7 therebetween.
- a second discharge port 6 communicating with the gap 7 is formed on the side wall of the housing 2.
- FIG. 3 is a diagram showing a group of tubes constituting the heat exchange module.
- FIG. 3 (a) is a top view
- FIG. 3 (b) is a front view
- FIG. 3 (c) is a perspective view.
- FIG. 4 is a diagram showing the heat exchange module.
- FIG. 4 (a) is a top view
- FIG. 4 (b) is a front view
- FIG. 4 (c) is a perspective view.
- FIG. 5 is an exploded perspective view showing the housing.
- FIG. 6 is a view showing a state in which the heat exchange module shown in FIG. 4 is arranged in a housing and a housing shown in FIG. 5, where FIG. 6 (a) is a top view, FIG. 6 (b) is a front view, and FIG. c) is shown in a perspective view.
- FIG. 7 is a top view showing a state where a housing is attached to a jig for forming a seal member.
- Fig. 8 shows the process of
- a plurality of pipes 1 are arranged in parallel at intervals so that the central axis of each pipe 1 is located on the same plane. Further, the plurality of tubes 1 are fixed and integrated in a state of being arranged by band-shaped fixing members 9a to 9d surrounding all of them along the direction perpendicular to the central axis of each tube 1. As a result, a tube group 10 is obtained.
- the tube group 10 is formed by insert molding using an upper die and a lower die (not shown).
- each of the upper mold and the lower mold has a plurality of first grooves (not shown) and a plurality of second grooves (not shown).
- the first grooves of the upper die and the lower die are formed so that the tubular body 1 can be arranged therein.
- the first groove of the upper die and the first groove of the lower die are aligned when the upper die and the lower die are joined. For this reason, by arranging the tubes 1 in each of the first grooves of either the upper die or the lower die, the respective tubes 1 are positioned.
- the second groove is formed so as to perpendicularly intersect the first groove. Further, the second groove of the upper die and the second groove of the lower die are aligned when the upper die and the lower die are joined, and form a cavity for forming any one of the fixing members 9a to 9d. Become.
- the resin material for forming the fixing member includes an injection molding resin having a small shrinkage force S after molding that has good fluidity, such as polycarbonate resin, polyamide resin, and polyurethane resin. , Polypropylene resin, poly-Shidan-Bull resin and the like. Among them, polycarbonate resin and Shiridani vinyl resin are preferable.
- the fixing members 9a to 9d of the vertically adjacent tube group 10 are brought into close contact with each other, and the polycarbonate resin or the salt is formed.
- adhesion is easy and there is also a force.
- FIG. 4 In the example of FIG.
- fixing members 9a to 9d there are four fixing members 9a to 9d, which are arranged at intervals along the central axis direction of each tube 1. Further, as can be seen from FIG. 3 (b), a plurality of recesses 11 are formed in the fixing members 9a to 9d in order to facilitate formation of a heat exchange module described later. Further, a plurality of tube groups 10 shown in FIG. 3 are manufactured.
- the inner fixing members 9b and 9c are provided between the inlet 4 and the first outlet between the heat exchange module, which will be described later, when the heat exchange module is disposed in the housing. 5 (see Fig. 1 and Fig. 2). That is, in the example of FIG. 3, the distance between the fixing members 9b and 9c is set so that the inlet 4 and the first outlet 5 can be located therebetween. It is set to be larger.
- the force between the first sealing member 3a or the second sealing member 3b A gap 7 between the third seal member 3c (see FIGS. 1 and 2) is formed.
- the distance between the fixing members 9a and 9b and the distance between the fixing members 9c and 9d are set so that the gap 7 formed can exhibit the above-mentioned function and the heat exchange is not increased. Good to do.
- a heat exchange module 12 is formed by stacking a plurality of tube groups 10.
- the stacking of the plurality of tube groups 10 is performed by attaching the fixing members 9a to 9d of each tube group 10 to the fixing members 9a to 9d of another tube group 10 vertically adjacent thereto. It is performed so that it is closely attached in the axial direction.
- the stacking of the plurality of tube groups 10 is such that the fixing members 9a of each tube group 10 are in close contact with the fixing members 9d of another vertically adjacent tube group 10.
- the fixing members 9b, 9c, and 9d of each tube group 10 are closely attached to the fixing members 9c, 9b, and 9a of another vertically adjacent tube group 10, respectively. I have.
- the heat exchange module 12 shown in FIG. 4 all the ends of the tubes 1 of each tube group 10 are aligned, and the side surfaces of the fixing members 9a to 9d of each tube group 10 are on the same plane. Will be.
- the fixing members 9a to 9d of the vertically adjacent tube group 10 are brought into close contact with each other in the step of forming a sealing member by filling a resin material described later (see FIGS. 7 and 8). This is to prevent the resin material from flowing into the gap 7.
- the stack of the plurality of tube groups 10 is such that the tube 1 constituting each tube group 10 This is performed so as to fit into the concave portions 11 provided in the fixing members 9a to 9d of another vertically adjacent tube group 10.
- the center of the cross section of each of the plurality of pipes 1 in each pipe group is closest to the center.
- the figure obtained by connecting to the center of the cross-section of the two tubes in the upper or lower tube group forms an equilateral triangle.
- the housing 2 includes a lid 2a and a main body 2b.
- An inlet 4 is provided in the center of the lid 2a.
- the main body 2b is composed of side plates 13a and 13b facing each other and a bottom plate 13c, and has a U-shaped cross section.
- a first outlet 5 is provided in a central portion of the bottom plate 13c, and a second outlet 6 is provided in the side plates 13a and 13b.
- inlets 14 and 15 are formed in the lid 2a, and air holes 16 and 17 are formed in the side plates 13a and 13b of the main body 2b. Is formed. The injection ports 14 and 15, the air holes 16 and 17, and the filling of materials using these will be described later.
- the heat module 12 is housed in the housing 2 so that the central axis of the tube 1 and the longitudinal axis of the housing 2 are aligned. Further, at this time, the portions of the fixing members 9a to 9d of each of the tube groups 10 exposed on the surface of the heat exchange module 12 are adhered or adhered to the inner surface of the housing 2.
- the lid 2a is shown by a dotted line for explanation.
- FIG. 6C all the housings 2 are indicated by dotted lines.
- the portions of the fixing members 9a to 9d of each tube group 10 that are exposed on the surface of the heat exchange module 12 are located on the inner surface of the housing 2 (the inner surfaces of the lid 2a and the main body 2b).
- Glued examples of the adhesive include a urethane-based adhesive and an epoxy-based adhesive.
- the housing 2 in which the heat exchange module 12 is accommodated is filled with a resin material, and the sealing members 3a to 3c (see FIGS. 1 and 2) are placed.
- the housing containing the heat exchange module 12 is attached to the jig 18.
- the jig 18 is composed of a main body plate 18a and a pair of push plates 18b and 18c sandwiching both openings of the housing 2.
- a packing 19 is provided between the push plates 18b and 18c and the housing 2. For this reason, the leakage of the resin material outside the opening of the housing 2 is suppressed, and the intrusion of the resin material into each tube 1 is also suppressed.
- 25 is a tube, which will be described later.
- the jig 18 is configured to be rotatable around an axis passing through the center of the inlet 4 and the center of the first outlet 5. As described later, filling of the resin material is performed while rotating the jig 18. Further, a mask 20 is attached to the upper surface of the housing 2 to prevent the resin material from entering through the inlet 4. However, holes are provided in the mask 20 so that the injection ports 14 and 15 are not closed.
- the injection pot 21 is attached to the upper surface of the housing 2.
- the injection port 21 is provided with a flow path 24 for guiding the resin material 23 injected into the injection pot 21 to the injection ports 14 and 15.
- 22 is a lid of the pouring pot.
- the heat exchange module 12 is shown in a side view.
- the inlet 15 on the left side in the figure is connected to the opening on the left side of the housing in the figure and the outer fixing member (9a or 9d) located on the left side of each tube group 10 in the figure. ) (Hereinafter, referred to as “first housing space”).
- the inlet 15 on the right side in the figure is a gap between the pipes 1 between the opening on the right side of the housing in the figure and the outer fixing member (9d or 9a) located on the right side in the figure of each tube group 10. (Hereinafter referred to as “second housing space”).
- the inlet 14 communicates with a space (hereinafter, referred to as a “third housing space”) surrounded by the two fixing members 9b and 9c located inside each tube group 10 in the housing 2. Is formed. [0068] Therefore, when the resin material 23 is injected into the injection pot 21, the resin material 23 enters the housing from the injection ports 14 and 15. At this time, as described above, the portions of the fixing members 9a to 9d in each tube group 10 exposed on the surface of the heat exchange module 12 are adhered to the inner surface of the housing 2. Therefore, only the first housing space, the second housing space, and the third housing space are filled with the resin material, and the gap 7 is formed.
- the filling of the resin material is performed while rotating the jig 18 as described above, and further rotating the housing 2 and the injection pot 21 together therewith. Therefore, the resin material filled in the housing 2 receives the centrifugal force due to this rotation. As a result, the cylindrical flow path 8 shown in FIG. 2 is formed by the resin material filled in the third housing space.
- the housing side plate 13a (see FIG. 5) is provided with an air hole 16 communicating with the first housing space and an air hole 17 communicating with the third housing space.
- the housing side plate 13b (see FIG. 5) also has an air hole 16 communicating with the second housing space and an air hole 17 communicating with the third housing space. Further, the air hole 16 and the air hole 17 are connected via a tube 25 in each side plate.
- the injection of the resin material by the injection pot 21 shown in FIG. 8 is performed by filling the first and second housing spaces with the resin material, and further into the third housing space, the inlet 4 and the first housing space. The process is performed until the flow path 8 (see FIG. 3) that matches the discharge port 5 is formed. The rotation of the jig 18 ends when the fluidity of the filled resin material is reduced and the shape of the flow path 8 is maintained.
- the first seal member 3a is formed in the first housing space
- the second seal member 3b is formed in the second housing space.
- a third seal member 3c is formed, and thereby, a flow path 8 is also formed.
- the three seal members 3a to 3c are formed by filling the resin material once.
- the resin material for forming the seal members 3a to 3c include thermosetting resins such as silicone resin, polyurethane resin, and epoxy resin.
- polyurethane resin is excellent in adhesiveness to the material forming the tube 1 (for example, a metal material) and the material forming the housing 2 (for example, a resin material such as polycarbonate resin).
- Epoxy resins are preferred and may be mentioned.
- the sealing members 3a to 3c are formed by sequentially filling different types of resin materials. It is preferable to have a layer structure.
- a polyurethane resin and an epoxy resin can be used. In such a case, it is possible to improve the adhesion, adhesion, and compatibility between the sealing members 3a-3c and the tube 1 and between the sealing members 3a-3c and the housing. it can.
- polyurethane resin is used as the resin material. Also, the filling of the polyurethane resin is performed by setting the rotation speed of the jig 18 to 1500 rpm to 3000 rpm, the filling amount to 20 ml to 100 ml, and the temperature in the injection pot 21 to room temperature (25 ° C) to 60 ° C. The rotation time is set between 30 minutes and 360 minutes!
- a multi-tube heat exchanger can be provided at low manufacturing cost. Therefore, it is possible to contribute to a reduction in the cost of a device using the obtained heat exchanger, for example, a heart-lung machine.
- the method for manufacturing a heat exchanger of the present invention can be applied to the production of heat exchange other than the heat exchangers shown in Figs. 1 and 2, for example, the heat exchange shown in Figs. 10 and 11.
- the resin material for forming the sealing member may be filled only in the gap between the tubes between the opening of the housing and the fixing member.
- a flow path for guiding the second fluid introduced from the inlet to the outlet is formed. May be filled.
- FIG. 9 is a cross-sectional view showing a configuration of an example of the heart-lung machine in the present invention. Note that, among the reference numerals shown in FIG. 9, the reference numerals used in FIG. 1 and FIG. 2 indicate the same components as those in FIG. 1 and FIG.
- the heart-lung machine includes a heat exchanger 30 and an artificial lung 40, which are housed in a housing 31.
- the housing 31 has a cold / hot water introduction passage 32 for introducing cold / hot water for heat exchange, a cold / hot water discharge passage 33 for discharging cold / hot water, a gas introduction passage 34 for introducing oxygen gas, A gas discharge path 35 for discharging carbon dioxide and the like in blood is provided.
- the heat exchange has the same configuration as that shown in Figs. 1 and 2.
- cold and hot water flows through the tube 1, and blood of the patient flows through the channel 8.
- a pipe 41 for guiding blood is connected to the inlet 4 provided in the housing 2 of the heat exchanger 30.
- the oxygenator 40 includes a plurality of hollow fiber membranes 37 and a pair of seal members 38.
- the pair of seal members 38 seal both ends of the plurality of hollow fiber membranes 37 so that blood does not enter the gas introduction path 34 and the gas discharge path 35.
- the sealing by the seal member 38 is performed such that both ends of the hollow fiber membrane 37 are exposed. For this reason, the gas introduction path 34 and the gas discharge path 35 communicate with each other by the hollow fiber membrane 37.
- the presence of the sealing member 38! /, Na! /, The space constitutes a blood flow path 39, and the hollow fiber is formed in the blood flow path 39.
- the membrane 37 is exposed.
- the blood inlet side of the blood flow path 39 is connected to the outlet side of the flow path 8 of the heat exchanger 30.
- the blood that has undergone heat exchange through channel 8 flows into blood channel 39, where it contacts hollow fiber membrane 37.
- oxygen gas flowing through the hollow fiber membrane 37 is taken into the blood.
- the blood into which oxygen gas has been taken in is discharged to the outside through a blood outlet 36 provided in the housing 31, and returned to the patient.
- the carbon dioxide in the blood is taken into the hollow fiber membrane 37 and then discharged through the gas discharge path 35.
- the temperature of blood is adjusted by the heat exchanger 30, and the blood whose temperature has been adjusted is exchanged by the oxygenator 40.
- Ma the cold and hot water accumulates in the gap 7 and then the second outlet 6 of the heat exchanger 30 Is discharged to the outside. For this reason, it is possible to detect a seal leak and to suppress blood contamination by cold and hot water.
- the heat exchange and artificial heart-lung machine which can suppress that the fluid which flows inside a pipe
- the heat exchange in the present invention can also be used as medical heat exchange in which seal leakage affects human life.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Urology & Nephrology (AREA)
- Geometry (AREA)
- External Artificial Organs (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2552833A CA2552833C (en) | 2004-02-10 | 2005-02-07 | Heat exchanger, method for manufacturing the same, and heart-lung machine |
EP05709809A EP1715279B1 (en) | 2004-02-10 | 2005-02-07 | Heat exchanger, method for manufacturing same, and artificial heart-lung machine |
US10/584,478 US7806169B2 (en) | 2004-02-10 | 2005-02-07 | Heat exchanger, method for manufacturing the same, and heart-lung machine |
AT05709809T ATE486261T1 (de) | 2004-02-10 | 2005-02-07 | Wärmetauscher, verfahren zu dessen herstellung und künstliche herz-lungen-maschine |
DE602005024366T DE602005024366D1 (de) | 2004-02-10 | 2005-02-07 | Wärmetauscher, verfahren zu dessen herstellung und künstliche herz-lungen-maschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004033889A JP4337573B2 (ja) | 2004-02-10 | 2004-02-10 | 熱交換器、その製造方法及び人工心肺装置 |
JP2004-033889 | 2004-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075922A1 true WO2005075922A1 (ja) | 2005-08-18 |
Family
ID=34836148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/001757 WO2005075922A1 (ja) | 2004-02-10 | 2005-02-07 | 熱交換器、その製造方法及び人工心肺装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7806169B2 (ja) |
EP (1) | EP1715279B1 (ja) |
JP (1) | JP4337573B2 (ja) |
CN (1) | CN100472170C (ja) |
AT (1) | ATE486261T1 (ja) |
CA (1) | CA2552833C (ja) |
DE (1) | DE602005024366D1 (ja) |
WO (1) | WO2005075922A1 (ja) |
Cited By (2)
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WO2007077816A1 (ja) * | 2006-01-06 | 2007-07-12 | Jms Co., Ltd. | 熱交換器、熱交換器の製造方法及び人工心肺装置の製造方法 |
US8187216B2 (en) | 2005-11-24 | 2012-05-29 | Jms Co., Ltd. | Hollow fiber membrane-type artificial lung |
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ITMI20051899A1 (it) * | 2005-10-10 | 2007-04-11 | Cardionova S R L | Dispositivo di scambio termico ad uso medicale |
JP4655224B2 (ja) * | 2005-12-02 | 2011-03-23 | 株式会社ジェイ・エム・エス | 人工心肺装置及びその製造方法 |
US7588549B2 (en) * | 2006-08-03 | 2009-09-15 | Terumo Cardiovascular Systems Corporation | Thermoelectric temperature control for extracorporeal blood circuit |
JP5088538B2 (ja) * | 2007-03-30 | 2012-12-05 | 株式会社ジェイ・エム・エス | 医療用の熱交換器及び人工心肺装置 |
JP5088537B2 (ja) * | 2007-03-30 | 2012-12-05 | 株式会社ジェイ・エム・エス | 医療用の熱交換器及び人工心肺装置 |
WO2008120747A1 (ja) * | 2007-03-30 | 2008-10-09 | Jms Co., Ltd. | 医療用熱交換器及び人工心肺装置 |
JP5333224B2 (ja) * | 2008-01-23 | 2013-11-06 | 株式会社ジェイ・エム・エス | 医療用熱交換器及びその製造方法並びに人工肺装置 |
JP2009297437A (ja) * | 2008-06-17 | 2009-12-24 | Jms Co Ltd | 医療用熱交換器及びその製造方法並びに人工肺装置 |
JP5311031B2 (ja) * | 2009-03-02 | 2013-10-09 | 株式会社ジェイ・エム・エス | 人工肺装置 |
JP5321257B2 (ja) | 2009-06-09 | 2013-10-23 | 株式会社ジェイ・エム・エス | 医療用熱交換器及びその製造方法並びに人工肺装置 |
EP2537542B1 (en) * | 2010-02-15 | 2021-04-21 | Nipro Corporation | Heat exchanger and heat exchanger-integrated in an artificial lung |
JP5393606B2 (ja) * | 2010-07-12 | 2014-01-22 | 株式会社Cku | 熱交換器 |
EP2612685B1 (en) | 2010-08-19 | 2014-10-08 | Sorin Group Italia S.r.l. | Blood processing unit with modified flow path |
DE102010049477B4 (de) * | 2010-10-27 | 2012-10-04 | Ingrid Barbknecht | Vorrichtung zur selektiven Kühlung physiologischen Gewebes |
JP5773353B2 (ja) * | 2011-02-15 | 2015-09-02 | 忠元 誠 | 熱交換器 |
US8819916B2 (en) * | 2011-11-16 | 2014-09-02 | GM Global Technology Operations LLC | Method for making a tube bundle |
US20130284402A1 (en) * | 2012-04-30 | 2013-10-31 | Roger Scott Telvick | Heat exchanger |
CN105555333B (zh) * | 2013-09-24 | 2018-05-08 | 株式会社Jms | 过滤器内置型人工肺及其制造方法 |
EP3092015B1 (en) | 2014-01-09 | 2018-09-19 | Sorin Group Italia S.r.l. | Blood processing unit with heat exchanger core for providing modified flow path |
DE102014201248A1 (de) * | 2014-01-23 | 2015-07-23 | Volkswagen Ag | Feuchtetauscher und Brennstoffzellenanordnung mit einem solchen |
CN105916534B (zh) * | 2014-01-31 | 2020-07-24 | 泰尔茂株式会社 | 换热器的制造方法及换热器 |
JP6386580B2 (ja) | 2014-02-28 | 2018-09-05 | ソリン・グループ・イタリア・ソシエタ・ア・レスポンサビリタ・リミタータSorin Group Italia S.r.l. | 追加される充填量を最小にする、酸素供給器と一体化される動脈フィルタを提供するためのシステム |
JP6490216B2 (ja) | 2014-11-12 | 2019-03-27 | ソリン・グループ・イタリア・ソシエタ・ア・レスポンサビリタ・リミタータSorin Group Italia S.r.l. | 中空繊維血液処理装置用の弾性保護管 |
WO2016181189A1 (en) | 2015-05-12 | 2016-11-17 | Sorin Group Italia S.R.L. | Blood gas exchanger with restriction element or elements to reduce gas exchange |
IT201700032687A1 (it) * | 2017-03-24 | 2018-09-24 | Qura S R L | Un ossigenatore di fluidi organici |
US10281217B2 (en) * | 2017-05-12 | 2019-05-07 | Denso International America, Inc. | Multifluid heat exchanger |
CN111315425A (zh) * | 2017-11-06 | 2020-06-19 | 迈奎特心肺有限公司 | 体外血液加热和冷却系统及其操作和维护方法 |
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- 2004-02-10 JP JP2004033889A patent/JP4337573B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-07 CA CA2552833A patent/CA2552833C/en not_active Expired - Fee Related
- 2005-02-07 AT AT05709809T patent/ATE486261T1/de not_active IP Right Cessation
- 2005-02-07 WO PCT/JP2005/001757 patent/WO2005075922A1/ja not_active Application Discontinuation
- 2005-02-07 DE DE602005024366T patent/DE602005024366D1/de active Active
- 2005-02-07 US US10/584,478 patent/US7806169B2/en not_active Expired - Fee Related
- 2005-02-07 CN CNB2005800040169A patent/CN100472170C/zh not_active Expired - Fee Related
- 2005-02-07 EP EP05709809A patent/EP1715279B1/en not_active Not-in-force
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JPS4917548B1 (ja) | 1969-10-10 | 1974-05-01 | ||
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JPH0686811A (ja) | 1992-05-22 | 1994-03-29 | Terumo Corp | 医療用熱交換器 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8187216B2 (en) | 2005-11-24 | 2012-05-29 | Jms Co., Ltd. | Hollow fiber membrane-type artificial lung |
WO2007077816A1 (ja) * | 2006-01-06 | 2007-07-12 | Jms Co., Ltd. | 熱交換器、熱交換器の製造方法及び人工心肺装置の製造方法 |
US8602090B2 (en) | 2006-01-06 | 2013-12-10 | Jms Co., Ltd. | Heat exchanger, method for manufacturing the heat exchanger, and method for manufacturing heart-lung machine |
Also Published As
Publication number | Publication date |
---|---|
US7806169B2 (en) | 2010-10-05 |
CN1914474A (zh) | 2007-02-14 |
EP1715279B1 (en) | 2010-10-27 |
CA2552833C (en) | 2010-10-12 |
CN100472170C (zh) | 2009-03-25 |
US20090018629A1 (en) | 2009-01-15 |
ATE486261T1 (de) | 2010-11-15 |
JP2005224301A (ja) | 2005-08-25 |
JP4337573B2 (ja) | 2009-09-30 |
CA2552833A1 (en) | 2005-08-18 |
EP1715279A1 (en) | 2006-10-25 |
DE602005024366D1 (de) | 2010-12-09 |
EP1715279A4 (en) | 2009-06-17 |
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