CN111617332A - Blood temp. changing device - Google Patents
Blood temp. changing device Download PDFInfo
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- CN111617332A CN111617332A CN201910152007.8A CN201910152007A CN111617332A CN 111617332 A CN111617332 A CN 111617332A CN 201910152007 A CN201910152007 A CN 201910152007A CN 111617332 A CN111617332 A CN 111617332A
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- blood
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- 239000008280 blood Substances 0.000 title claims abstract description 120
- 210000004369 blood Anatomy 0.000 title claims abstract description 116
- 239000011229 interlayer Substances 0.000 claims abstract description 19
- 230000017531 blood circulation Effects 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 38
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002107 myocardial effect Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000010412 perfusion Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 230000004087 circulation Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 210000000056 organ Anatomy 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000002633 protecting effect Effects 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- KAWIOCMUARENDQ-UHFFFAOYSA-N 2-(4-chlorophenyl)sulfanyl-n-(4-pyridin-2-yl-1,3-thiazol-2-yl)acetamide Chemical compound C1=CC(Cl)=CC=C1SCC(=O)NC1=NC(C=2N=CC=CC=2)=CS1 KAWIOCMUARENDQ-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
- A61M1/3633—Blood component filters, e.g. leukocyte filters
-
- 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
- A61M1/3664—Extra-corporeal blood circuits for preparing cardioplegia solutions
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Cardiology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention relates to a blood temperature changer which comprises a box body, a heat exchange sheet and a bubble dredging catcher arranged on the box body, wherein the heat exchange sheet is arranged in the box body to divide the box body into a blood cavity and a medium cavity which are arranged in the front and back; the box body is provided with a blood inlet, a blood outlet, a medium inlet and a medium outlet, and the heat exchange sheets are folded in a Z shape continuously to form a plurality of blood flowing interlayers and medium flowing interlayers. The invention has reasonable structure, small precharge amount, high temperature change efficiency, low blood flow resistance, less blood damage and good myocardial protection effect; meanwhile, the device has the functions of dredging bubbles, filtering, measuring temperature, measuring pressure and the like, is high in safety, simple to operate and complete in function, and facilitates the work of a clinician in extracorporeal circulation. Not only can be used as a myocardial protection liquid perfusion device for extracorporeal circulation open-heart surgery, but also is suitable for perfusion of other tissue and organ protection liquids.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a blood temperature changer.
Background
The perfusion apparatus for myocardial protecting liquid perfuses heart with myocardial protecting liquid to stop beating and reduce myocardial temperature and oxygen consumption to obtain excellent myocardial protecting effect and thus improve the life quality of patient. The perfusion apparatus for myocardial protecting liquid is composed of temp. varying unit, liquid storage unit and pump tube.
The temperature changing method of the current myocardial protection fluid perfusion apparatus mainly comprises two methods: the first is a pre-cooled crystal arrest fluid pressure infusion method that does not have tubing to mix with the blood and therefore does not meet the need for perfusion of oxygenated blood cardioprotectant. The second one is to coil a longer PVC pipe or metal pipe and immerse the pipe into ice water to achieve the purpose of cooling, the temperature changing method must increase the length of the pipeline and the resistance of the pipeline in order to obtain a better temperature changing effect, the priming volume of the perfusion apparatus is increased, the blood dilution and the blood consumption of the patient (especially children) are increased, and the clinical use effect is not good.
Disclosure of Invention
The invention aims to provide a blood temperature changer which has the function of dredging bubbles and is convenient to exhaust; the blood flow resistance is low, and the temperature change efficiency is high.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the blood temperature changer comprises a box body, a heat exchange sheet and a bubble dredging catcher arranged on the box body, wherein the heat exchange sheet is arranged in the box body to divide the box body into a blood cavity and a medium cavity which are arranged in front of and behind the blood cavity and the medium cavity;
the box body is provided with a blood inlet, a blood outlet, a medium inlet and a medium outlet, the blood inlet and the blood outlet are communicated with the blood cavity, and the medium inlet and the medium outlet are communicated with the medium cavity;
bubble is dredged the trapper and is included the bubble and collect the chamber, the bubble is collected the chamber and is communicated with each other with the blood chamber, and the bubble is collected the chamber and is located blood entry and blood export top, the bubble is collected the chamber and is followed up narrowing gradually down, and the bubble is collected the chamber and is had the air release mouth, and the air release mouth is located the bubble and collects the chamber top.
Further, the bubble dredging catcher is arranged at the top of the box body.
Furthermore, the heat exchange sheets are folded in a Z shape continuously to form a plurality of blood flowing interlayers and medium flowing interlayers, the front sides of the heat exchange sheets are tightly attached to the inner side wall of the box body, and a certain interval is reserved between the rear sides of the heat exchange sheets and the inner side wall of the box body.
Further preferably, the media flow compartment has a width greater than the width of the blood flow compartment.
Furthermore, the medium inlet and the medium outlet are arranged at the bottom of the side wall of the box body, the medium cavity is vertically provided with a medium blocking sheet, the bottom of the medium blocking sheet is fixedly connected with the bottom surface of the box body, and a gap is arranged between the top of the medium blocking sheet and the top surface of the box body; the back side edge of the medium blocking sheet is hermetically connected with the inner side wall of the box body, and the front side edge of the medium blocking sheet extends into the medium flowing interlayer and is hermetically connected with the heat exchange sheets which are close to the two sides; the media barrier sheet is positioned between the media inlet and the media outlet.
Wherein a filter is arranged at the blood outlet.
Further, the blood inlet and the blood outlet are positioned at the bottom of the box body.
Preferably, the bottom of the front side wall of the box body is provided with a horizontal strip-shaped notch B, the strip-shaped notch B is communicated with the blood cavity, the strip-shaped notch B is provided with a horizontal tube A, the side wall of the horizontal tube A is provided with a strip-shaped notch A which is used for being matched and communicated with the strip-shaped notch B, and the tube openings at the two ends of the horizontal tube A are respectively a blood inlet and a blood outlet.
Furthermore, a blood blocking sheet is arranged in the horizontal tube A and is perpendicular to the axis of the horizontal tube A, the blood blocking sheet is arranged at the strip-shaped notch A, and the end part of the blood blocking sheet extends into the blood flowing interlayer and is in sealing connection with the heat exchange sheets close to the two sides.
Further, the bubble dredging catcher also comprises a horizontal tube B, a horizontal strip-shaped notch C is arranged at the top of the front side wall of the box body and communicated with the blood cavity, the horizontal tube B is arranged at the strip-shaped notch C, and a strip-shaped notch D used for being matched and communicated with the strip-shaped notch C is arranged on the side wall of the horizontal tube B; the two ends of the horizontal tube B are closed, and the bottom of the bubble collecting cavity is communicated with the horizontal tube B.
Compared with the prior art, the invention has the following beneficial effects:
1, the invention has the function of dredging bubbles, is convenient to exhaust and has high safety;
2, the folded metal sheet is adopted as a heat exchange sheet, so that the preheating amount is small, the temperature change efficiency is high, the blood flow resistance is low, and the blood damage is less;
3, has the functions of measuring temperature and pressure, and is complete in function and convenient to use.
Drawings
FIG. 1 is a three-dimensional view showing the front orientation of the present invention with respect to the plate;
FIG. 2 is a three-dimensional view of the front face orientation of the present invention without the plate shown;
FIG. 3 is a three-dimensional view showing the back orientation of the invention with the plate;
FIG. 4 is a three-dimensional view of the back side of the present invention without the plate shown;
FIG. 5 is a schematic view of a plate construction;
FIG. 6 is a cross-sectional view of the present invention at level tube A;
FIG. 7 is a three-dimensional view of the front side of the case;
FIG. 8 is a schematic view of the structure of a horizontal tube A;
FIG. 9 is a schematic view of a first bubble leading catcher;
FIG. 10 is a schematic view of a second bubble canalizing trap;
FIG. 11 is a longitudinal sectional view of the present invention;
FIG. 12 is a three-dimensional view of the back side of the case;
FIG. 13 is a cross-sectional view of the invention somewhere between level vial A and level vial B;
in the figure: 1-box body, 2-heat exchange plate, 3-bubble dredging catcher, 4-sealing material A, 5-sealing material B, 6-blood inlet, 7-blood outlet, 8-medium inlet, 9-medium outlet, 10-medium blocking plate, 11-filter, 12-horizontal tube A, 13-strip gap A, 14-strip gap B, 15-blood blocking plate, 16-strip gap C, 17-temperature measuring port, 18-exhaust pressure measuring port, 19-fixing device, 21-blood flowing interlayer, 22-medium flowing interlayer, 31-bubble collecting cavity, 32-air releasing nozzle, 33-horizontal tube B and 34-strip gap D.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, the blood temperature changer disclosed by the invention comprises a box body 1, a heat exchange plate 2 and a bubble dredging catcher 3 arranged on the box body 1, wherein the heat exchange plate 2 is arranged in the box body 1 to divide the box body 1 into a blood cavity and a medium cavity, and the blood and the medium are respectively arranged on two sides of the heat exchange plate 2 to isolate water and blood. As shown in fig. 1, 3, 6, the blood chamber and the media chamber are arranged in tandem.
The box body 1 is provided with a blood inlet 6, a blood outlet 7, a medium inlet 8 and a medium outlet 9, the blood inlet 6 and the blood outlet 7 are communicated with the blood cavity, and the medium inlet 8 and the medium outlet 9 are communicated with the medium cavity.
As shown in fig. 1, 2, 9 and 10, the bubble dredging catcher 3 comprises a bubble collecting cavity 31 and a horizontal pipe B33, the bubble collecting cavity 31 is gradually narrowed from bottom to top, the bubble collecting cavity 31 is provided with a gas releasing nozzle 32, and the gas releasing nozzle 32 is positioned at the top of the bubble collecting cavity 31; the two ends of the horizontal pipe B33 are closed, and the bottom of the bubble collecting cavity 31 is communicated with the horizontal pipe B33. As shown in fig. 7, a horizontal strip-shaped notch C16 is arranged at the top of the front side wall of the box body 1, the strip-shaped notch C16 is communicated with the blood cavity, a horizontal tube B33 is arranged at the strip-shaped notch C16, and the side wall of the horizontal tube B33 is provided with a strip-shaped notch D34 which is used for being communicated with the strip-shaped notch C16 in a matching manner, so that the air bubble collecting cavity 31, the horizontal tube B33 and the blood cavity are communicated with each other.
As shown in fig. 1, 2, 5 and 6, the heat exchanger plate 2 is folded in zigzag to form a plurality of blood flowing interlayers 21 and medium flowing interlayers 22, which can increase the contact area between the medium and the blood and increase the temperature change effect. As shown in fig. 13, the front side of the heat exchanger plate 2 is closely attached to the inner side wall of the box body 1, and the rear side of the heat exchanger plate 2 is spaced from the inner side wall of the box body 1. This allows blood to flow only up and down the blood flow sandwich 21.
Preferably, the width of medium flow interlayer 22 is larger than the width of blood flow interlayer 21, which can reduce blood volume, and simultaneously make medium resistance low and flow speed high, and increase temperature change effect. The heat exchange plate 2 is in a wave shape or other shapes, so that the contact area of the medium and blood can be further increased, and the temperature change effect can be further increased. The heat exchanger plate 2 is made of metal plate, and as shown in fig. 11, the top and bottom of the heat exchanger plate 2 are sealed with the top and bottom surfaces of the case 1 by a sealant a4 to isolate water and blood. While the left and right sides of plate 2 are sealed to the left and right side walls of housing 1 using seal B5. The sealing material can be professional sealing material, such as PU plugging glue.
As shown in fig. 1, 2, 3, 4 and 6, a medium inlet 8 and a medium outlet 9 are arranged at the bottom of the side wall of the box body 1, a medium cavity is vertically provided with a medium blocking sheet 10, the bottom of the medium blocking sheet 10 is fixedly connected with the bottom surface of the box body 1, and a gap is arranged between the top of the medium blocking sheet 10 and the top surface of the box body 1; the back side edge of the medium blocking sheet 10 is hermetically connected with the inner side wall of the box body 1, and the front side edge of the medium blocking sheet 10 extends into the medium flowing interlayer 22 and is hermetically connected with the heat exchange sheets 2 which are adjacent to the two sides; a media barrier sheet 10 is located between the media inlet 8 and the media outlet 9. As shown in fig. 3 and 4, the blocking of the medium blocking sheet 10 prevents the medium from directly flowing out of the medium outlet 9 after entering from the medium inlet 8. When the medium enters the medium cavity through the medium inlet 8, the medium spreads from bottom to top and flows into the medium flowing interlayer 22 to exchange heat with the blood in the blood flowing interlayer 21, in the process, the medium spreads upwards from one side of the medium blocking sheet 10, flows through the interval between the top of the medium blocking sheet 10 and the box body 1, then flows downwards from the other side of the medium blocking sheet 10, and finally flows out through the medium outlet 9. When in specific use, the medium inlets 8 and 9 can be connected with a temperature-changing water tank.
As shown in fig. 7, a horizontal strip-shaped notch B14 is arranged at the bottom of the front side wall of the box body 1, the strip-shaped notch B14 is communicated with the blood cavity, a horizontal tube a12 is installed at the strip-shaped notch B14, the side wall of the horizontal tube a12 is provided with a strip-shaped notch a13 which is used for being matched and communicated with the strip-shaped notch B14, and the nozzles at the two ends of the horizontal tube a12 are respectively a blood inlet 6 and a blood outlet 7. The blood outlet 7 is provided with a filter 11 for filtering blood before entering human body and blocking tiny emboli from entering human body, and the filter 11 is tubular or in other shapes and is arranged in a horizontal tube A12.
A blood blocking sheet 15 is arranged in the horizontal tube A12, the blood blocking sheet 15 is vertical to the axis of the horizontal tube A12, and the blood blocking sheet 15 is arranged at the strip-shaped notch A13. As shown in fig. 6, the end of blood blocking sheet 15 extends into blood flow sandwich 21 and is sealingly connected to adjacent plates 2. The blood blocking sheet 15 is used for separating the blood inlet 6 and the blood outlet 7, prolonging the flow path of blood and increasing the blood temperature changing effect. As shown in fig. 1, 2 and 6, after the blood enters the blood chamber through the blood inlet 6, the blood flows through the blood flow sandwich 21 on one side of the blood blocking sheet 15 from bottom to top into the horizontal tube B33, then flows through the blood flow sandwich 21 on the other side of the blood blocking sheet 15 from top to bottom, and finally flows out of the blood outlet 7 after being filtered by the filter 11. In the process, the bubbles in the blood flow along the inclined plane of the bubble collecting cavity 31 and are captured and collected in the bubble collecting cavity 31, and the bubble collecting cavity 31 plays roles of dredging and capturing bubbles and prevents the gas from entering the human body. When the gas collected in the bubble collecting chamber 31 is more, the gas discharge nozzle 32 can be opened to discharge.
As shown in fig. 1 and 2, the horizontal pipe a12 is provided with an exhaust pressure measuring port 18 and a temperature measuring port 17. The temperature measuring port 17 is arranged between the blood blocking sheet 15 and the blood outlet 7, the temperature measuring port 17 is connected with a temperature measuring connector, the temperature measuring connector adopts a movable connection mode, the temperature of blood and the temperature of the blood-jumping stopping liquid can be conveniently measured and monitored through the temperature measuring port, and the temperature measuring port can also be used as an exhaust pressure measuring port. The exhaust pressure measurement port 18 is provided between the blood blocking flap 15 and the blood inlet 6. Of course, the bleed nozzle 32 may also serve as a bleed pressure tap. The invention can exhaust and measure pressure from a plurality of directions.
As shown in fig. 7, 8, 9 and 10, for the sealing performance and the overall use effect of the temperature changer, the lengths of the strip-shaped notch C16 and the strip-shaped notch B14 on the box body 1 are equivalent to the width of the box body 1, the length of the strip-shaped notch D34 on the horizontal tube B33 is equivalent to the length of the strip-shaped notch C16, and the length of the strip-shaped notch a13 on the horizontal tube a12 is equivalent to the length of the strip-shaped notch B14.
As shown in fig. 9 and 10, the present invention provides two kinds of bubble canalizing traps 3, the first kind of bubble canalizing trap 3 has a diameter at the bottom of the bubble collecting chamber 31 smaller than the length of the horizontal tube B33; the diameter of the bottom of the bubble collecting chamber 31 of the second type of the bubble canalizing catcher 3 is equal to the length of the horizontal tube B33. The radial length of the two bubble collecting cavities 31 is reduced from bottom to top, so that the bubbles can be discharged conveniently.
As shown in FIG. 12, the outer wall of the box body 1 is provided with a fixing device 19, when the present invention is used, the box body 1 can be fixed on other devices through the fixing device 19, and the fixing device 19 can also be arranged at other positions of the box body 1.
The invention has reasonable structure, small precharge amount, high temperature change efficiency, low blood flow resistance, less blood damage and good myocardial protection effect; meanwhile, the device has the functions of dredging bubbles, filtering, measuring temperature, measuring pressure and the like, is high in safety, simple to operate and complete in function, and facilitates the work of a clinician in extracorporeal circulation. It is not only suitable for perfusion of myocardial protection liquid in extracorporeal circulation open-heart surgery, but also suitable for perfusion of other tissue and organ protection liquid.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (10)
1. The blood temperature changer is characterized by comprising a box body, a heat exchange sheet and a bubble dredging catcher arranged on the box body, wherein the heat exchange sheet is arranged in the box body to divide the box body into a blood cavity and a medium cavity which are arranged in front of and behind the blood cavity and the medium cavity;
the box body is provided with a blood inlet, a blood outlet, a medium inlet and a medium outlet, the blood inlet and the blood outlet are communicated with the blood cavity, and the medium inlet and the medium outlet are communicated with the medium cavity;
bubble is dredged the trapper and is included the bubble and collect the chamber, the bubble is collected the chamber and is communicated with each other with the blood chamber, and the bubble is collected the chamber and is located blood entry and blood export top, the bubble is collected the chamber and is followed up narrowing gradually down, and the bubble is collected the chamber and is had the air release mouth, and the air release mouth is located the bubble and collects the chamber top.
2. The blood temperature changer of claim 1, wherein: the bubble dredging catcher is arranged at the top of the box body.
3. The blood temperature changer of claim 1 or 2, wherein: the heat exchange sheets are folded in a Z shape continuously to form a plurality of blood flowing interlayers and medium flowing interlayers, the front sides of the heat exchange sheets are tightly attached to the inner side wall of the box body, and a certain interval is reserved between the rear sides of the heat exchange sheets and the inner side wall of the box body.
4. The blood temperature changer of claim 3, wherein: the media flow compartment has a width greater than a width of the blood flow compartment.
5. The blood temperature changer of claim 4, wherein: the medium inlet and the medium outlet are arranged at the bottom of the side wall of the box body, the medium cavity is vertically provided with a medium blocking sheet, the bottom of the medium blocking sheet is fixedly connected with the bottom surface of the box body, and a gap is arranged between the top of the medium blocking sheet and the top surface of the box body; the back side edge of the medium blocking sheet is hermetically connected with the inner side wall of the box body, and the front side edge of the medium blocking sheet extends into the medium flowing interlayer and is hermetically connected with the heat exchange sheets which are close to the two sides; the media barrier sheet is positioned between the media inlet and the media outlet.
6. The blood temperature changer of claim 1 or 5, wherein: and a filter is arranged at the blood outlet.
7. The blood temperature changer of claim 4 or 5, wherein: the blood inlet and the blood outlet are positioned at the bottom of the box body.
8. The blood temperature changer of claim 7, wherein: the bottom of the front side wall of the box body is provided with a horizontal bar-shaped notch B which is communicated with the blood cavity, a horizontal tube A is arranged at the bar-shaped notch B, the side wall of the horizontal tube A is provided with a bar-shaped notch A which is used for being matched and communicated with the bar-shaped notch B, and the openings of the two ends of the horizontal tube A are respectively a blood inlet and a blood outlet.
9. The blood temperature changer of claim 8, wherein: a blood blocking sheet is arranged in the horizontal tube A and is perpendicular to the axis of the horizontal tube A, the blood blocking sheet is arranged at the strip-shaped notch A, and the end part of the blood blocking sheet extends into the blood flowing interlayer and is in sealing connection with the heat exchange sheets close to the two sides.
10. The blood temperature changer of claims 1, 2, 4, 5, 8, and 9, wherein: the bubble leading catcher also comprises a horizontal tube B, the top of the front side wall of the box body is provided with a horizontal strip-shaped notch C, the strip-shaped notch C is communicated with the blood cavity, the horizontal tube B is arranged at the strip-shaped notch C, and the side wall of the horizontal tube B is provided with a strip-shaped notch D which is used for being matched and communicated with the strip-shaped notch C; the two ends of the horizontal tube B are closed, and the bottom of the bubble collecting cavity is communicated with the horizontal tube B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152007.8A CN111617332A (en) | 2019-02-28 | 2019-02-28 | Blood temp. changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152007.8A CN111617332A (en) | 2019-02-28 | 2019-02-28 | Blood temp. changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111617332A true CN111617332A (en) | 2020-09-04 |
Family
ID=72254888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910152007.8A Pending CN111617332A (en) | 2019-02-28 | 2019-02-28 | Blood temp. changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111617332A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762868A (en) * | 1995-11-30 | 1998-06-09 | Minnesota Mining And Manufacturing Company | Blood oxygenator and heat exchanger |
| US6001306A (en) * | 1996-11-07 | 1999-12-14 | C. R. Bard, Inc. | Integrated oxygenator and heat exchanger |
| WO2000025843A1 (en) * | 1998-11-02 | 2000-05-11 | Lifestream International, Inc. | Cardioplegia heat exchanger |
| CN2407762Y (en) * | 2000-03-06 | 2000-11-29 | 寿锡健 | Blood temperature changing device for oxygenator |
| CN2772515Y (en) * | 2004-04-23 | 2006-04-19 | 广东省医疗器械研究所 | Hollow fibrous coat oxygenator |
| CN210078427U (en) * | 2019-02-28 | 2020-02-18 | 四川大学华西医院 | Blood temp. changing device |
-
2019
- 2019-02-28 CN CN201910152007.8A patent/CN111617332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762868A (en) * | 1995-11-30 | 1998-06-09 | Minnesota Mining And Manufacturing Company | Blood oxygenator and heat exchanger |
| US6001306A (en) * | 1996-11-07 | 1999-12-14 | C. R. Bard, Inc. | Integrated oxygenator and heat exchanger |
| WO2000025843A1 (en) * | 1998-11-02 | 2000-05-11 | Lifestream International, Inc. | Cardioplegia heat exchanger |
| CN2407762Y (en) * | 2000-03-06 | 2000-11-29 | 寿锡健 | Blood temperature changing device for oxygenator |
| CN2772515Y (en) * | 2004-04-23 | 2006-04-19 | 广东省医疗器械研究所 | Hollow fibrous coat oxygenator |
| CN210078427U (en) * | 2019-02-28 | 2020-02-18 | 四川大学华西医院 | Blood temp. changing device |
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