CN111588931A - Extracorporeal membrane lung oxygenation equipment for medical first-aid technology - Google Patents
Extracorporeal membrane lung oxygenation equipment for medical first-aid technology Download PDFInfo
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- CN111588931A CN111588931A CN202010270224.XA CN202010270224A CN111588931A CN 111588931 A CN111588931 A CN 111588931A CN 202010270224 A CN202010270224 A CN 202010270224A CN 111588931 A CN111588931 A CN 111588931A
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- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 22
- 210000004072 lung Anatomy 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 title claims abstract description 14
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 210000004369 blood Anatomy 0.000 claims abstract description 70
- 239000008280 blood Substances 0.000 claims abstract description 70
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000002618 extracorporeal membrane oxygenation Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 230000005693 optoelectronics Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 230000023555 blood coagulation Effects 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010051093 Cardiopulmonary failure Diseases 0.000 description 1
- 241000252254 Catostomidae Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Classifications
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- 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
Abstract
The invention provides an extracorporeal membrane lung oxygenation device for medical emergency technology, which comprises: blood pump, oxygenator, alternating temperature water tank, control host computer, blood pump entrance connection blood vessel intubate, the blood pump exit end is connected the blood import of oxygenator, the blood import of alternating temperature water tank is connected the blood export of oxygenator, still includes: the blood inlet of the thrombus treatment device is connected with the blood outlet of the temperature-changing water tank, and the thrombus treatment device is electrically connected with the control host; the fixing device is used for fixing the pipeline of the oxygenation equipment. The temperature-changing water tank is used for adjusting the temperature of blood and avoiding blood coagulation; the thrombus treatment device is arranged for treating thrombus and avoiding the blockage of the blood vessel caused by the re-infusion of the thrombus into the blood vessel; the fixing device is arranged for fixing the pipeline of the oxygenation equipment, so that the defect that only sticking (such as tape sticking) is easy to loosen is avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an extracorporeal membrane lung oxygenation device for medical emergency technology.
Background
Extracorporeal membrane oxygenation, commonly known as 'ye ke membrane' and 'artificial lung', is a medical emergency treatment technical device, and is mainly used for providing continuous extracorporeal respiration and circulation for patients with severe cardiopulmonary failure so as to maintain the lives of the patients. The basic structure is as follows: an intravascular catheter, a connecting pipe, a power pump (artificial heart), an oxygenator (artificial lung), an oxygen supply tube and a monitoring system. The disposable part is usually formed into a kit clinically, and the non-disposable part is stored in a binding way and is designed to be movable, so that the emergency capacity is improved. Power pump (artificial heart): the function is to form power to drive blood to flow to one side of the pipeline, and the function is similar to that of the heart. Oxygenator (artificial lung): its function is to synthesize the non-oxygenated blood oxygen into oxygenated blood, also called artificial lung.
Currently, extracorporeal membrane lung oxygenation devices have the following problems:
1. no special pipeline fixing device is provided, only a single mode of pasting (such as pasting through an adhesive tape) the pipeline and the pipeline mounting part is adopted, and the defect of easy looseness is caused;
2. the existing blood pump is usually a constant pressure pump, and the heart is a "blood pump" in a blood circulation system, which is a "variable frequency pump" and a "variable pressure pump".
Disclosure of Invention
The invention provides an extracorporeal membrane lung oxygenation device for medical emergency technology, which is used for solving at least one of the technical problems.
An extracorporeal membrane lung oxygenation device for medical emergency techniques, comprising: blood pump, oxygenator, alternating temperature water tank, control host computer, blood pump entrance connection blood vessel intubate, the blood pump exit end is connected the blood import of oxygenator, the blood import of alternating temperature water tank is connected the blood export of oxygenator, still includes:
the blood inlet of the thrombus treatment device is connected with the blood outlet of the temperature-changing water tank, and the thrombus treatment device is electrically connected with the control host;
the fixing device is used for fixing the pipeline of the oxygenation equipment.
Preferably, the blood pump is a variable pressure blood pump comprising:
a blood pump body, the blood pump body includes: a second chamber, a first chamber, a diaphragm;
two piston devices;
the piston device includes:
the upper end of the first mounting shell is provided with a liquid inlet;
the left end, the right end, the front end and the rear end of the piston are respectively connected with the left end, the right end, the front end and the rear end of the first mounting shell in a sealing way;
one end of the first connecting pipe is connected to the liquid inlet, and the other end of the first connecting pipe is communicated with the first chamber;
fluid is arranged on the upper side of the piston in the first mounting shell, in the first connecting pipe and in the first cavity;
the rotating motor is fixedly connected to one side of the first mounting shell and is electrically connected with the control host;
a first end of the first connecting rod is connected to the lower side of the piston, an installation groove is formed in the outer side of the lower end of the first installation shell, and a second end of the first connecting rod is located in the installation groove;
and the crankshaft is connected with the first connecting rod and is driven to rotate by a rotating motor.
Preferably, the crankshaft includes: horizontal rods are arranged on two sides of the upper end of each U-shaped rod and are respectively and rotatably connected with two sides of the mounting groove;
the lower end of the piston is provided with a third fixed block, the upper end of the first connecting rod is rotatably connected with the third fixed block, the lower end of the first connecting rod is provided with a horizontal through hole, and the lower end of the U-shaped rod penetrates through the horizontal through hole;
the rotating motor is fixedly connected to the outer side of the first mounting shell at the mounting groove and is positioned below the horizontal rod;
the first bevel gear is fixedly connected to an output shaft of the rotating motor;
and the second bevel gear is fixedly connected to a horizontal rod and is in meshing transmission with the first bevel gear.
Preferably, the thrombus treatment device comprises:
the upper end of the transparent shell is provided with a first fixed block, the upper end of the first fixed block is provided with a connecting part, and the transparent shell is provided with scales;
the pressure sensor is connected in the transparent shell;
one end of the seventh connecting pipe is arranged at the top end in the transparent shell, and the other end of the seventh connecting pipe is connected with the negative pressure adjusting device;
one end of the second connecting pipe is arranged at the top end in the transparent shell, and the other end of the second connecting pipe is connected with the blood outlet of the variable temperature water tank;
the two horizontal clapboards are arranged on the inner side wall of the transparent shell at intervals up and down and divide the transparent shell into an upper cavity, a middle cavity and a lower cavity;
one end of the vertical pipeline is fixedly connected with the lower end of the horizontal partition plate on the lower side, and the other end of the vertical pipeline is fixedly connected with the lower end in the transparent shell;
the third connecting pipe is positioned on one side of the vertical pipeline, one end of the third connecting pipe penetrates through the upper horizontal partition plate, and the other end of the third connecting pipe penetrates through the lower horizontal partition plate and is communicated with the upper cavity and the lower cavity;
the fourth connecting pipe is arranged on the horizontal partition plate on the lower side and is positioned on one side of the vertical pipeline, the upper end of the fourth connecting pipe is positioned in the middle cavity, and the lower end of the fourth connecting pipe is positioned in the lower cavity;
the plurality of filtering holes are formed in one side of the vertical pipeline;
the fifth connecting pipe is connected to the lower end of the transparent shell, and one end of the fifth connecting pipe is communicated with the vertical pipeline;
one end of the sixth connecting pipe is connected to the lower end of the transparent shell and is positioned on one side, close to the filtering hole, of the vertical pipeline;
the second fixed block is arranged on one side of the upper end of the transparent shell;
the miniature camera is arranged on the second fixed block;
the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe and the sixth connecting pipe are all provided with electromagnetic valves;
the miniature camera, the electromagnetic valve and the negative pressure adjusting device are respectively and electrically connected with the control host.
Preferably, the method further comprises the following steps:
the fixed end of the first electric telescopic rod is fixedly connected in the middle cavity, the lower end of the fixed end penetrates through the horizontal partition plate on the lower side, and the first electric telescopic rod is electrically connected with the control host;
the scraper blade, fixed connection be in first electric telescopic handle's flexible end, the shape that is close to vertical pipeline one side of scraper blade matches with the shape of vertical pipeline.
Preferably, the fixing means comprises:
the front end and the rear end of the second mounting shell are provided with openings, and the upper end and the left end and the right end of the second mounting shell are provided with threaded through holes;
the bolt is connected in the threaded through hole;
the clamping plate is arranged at one end of the bolt in the second mounting shell;
the fixing plate is fixedly connected to the lower end of the second mounting shell;
the two L-shaped connecting rods are respectively arranged on the left side and the right side of the fixed plate, the vertical ends of the two L-shaped connecting rods are rotatably connected with the left side and the right side of the fixed plate, and the horizontal ends of the two L-shaped connecting rods are arranged close to each other;
the two suckers are arranged at the horizontal end of the L-shaped connecting rod;
the second telescopic rod is fixedly connected to the lower end of the fixing plate;
the connecting plate is fixedly connected to the lower end of the second telescopic rod and used for connecting the pasting piece.
Preferably, the power supply interface of the oxygenation device is connected to the main power supply and the auxiliary power supply through a power supply circuit, and the main power supply and the auxiliary power supply are switched through the power supply circuit, and the power supply circuit includes:
the device comprises a temperature control module, a voltage detection module and a voltage control module;
the temperature control module includes:
the first resistor is a temperature-sensitive resistor and is arranged on the main power supply, and the first end of the first resistor is connected with the auxiliary power supply through a second integrated chip;
the positive input end of the operational amplifier is connected with the second end of the first resistor, the second end of the first resistor is grounded through the second resistor, and the negative input end of the operational amplifier is grounded through the third resistor;
the fourth resistor is a variable resistor, one end of the fourth resistor is connected with the second integrated chip and the second end of the first resistor, and the other end of the fourth resistor is connected with the negative input end of the operational amplifier;
the input end of the NOT gate is connected with the output end of the operational amplifier;
a first end of a coil of the first relay is connected with a first end of a main power supply, and a second end of the coil of the first relay is connected with an output end of a NOT gate;
the negative electrode of the diode is connected with the first end of the main power supply, and the positive electrode of the diode is connected with the output end of the NOT gate;
the voltage detection module includes:
the positive end of the photoelectric isolator is connected with the first end of a fifth resistor, and the second end of the fifth resistor is connected with the first end of the main power supply through a switch of a first relay;
one end of the sixth resistor is connected with the positive end of the photoelectric isolator, and the other end of the sixth resistor is connected with the negative end of the photoelectric isolator and the second end of the main power supply;
the first end of the second capacitor is connected with the collector of the photoelectric isolator, and the second end of the second capacitor is connected with the emitter of the photoelectric isolator;
the voltage control module includes:
the first input end of the first integrated chip is connected with the second end of the main power supply, the second input end of the first integrated chip is connected with the first end of the main power supply through a switch of a first relay, and the output end of the first integrated chip is connected with a collector of the photoelectric isolator;
the collector of the first triode is connected with the output end of the first integrated chip;
a collector of the second triode is connected with a base electrode of the first triode, and an emitter of the second triode is grounded through a seventh resistor;
one end of the eighth resistor is connected with the emitting electrode of the photoelectric isolator and the second end of the second capacitor, and the other end of the eighth resistor is grounded;
one end of the first capacitor is connected with the emitting electrode of the photoelectric isolator and the second end of the second capacitor, and the other end of the first capacitor is grounded;
one end of a coil of the second relay is connected with the emitter of the first triode, the other end of the coil is grounded, a first contact is connected with the second end of the main power supply, a second contact is connected with the first end of the auxiliary power supply, and a third contact is connected with the first power supply input end of the power supply interface;
and one end of a coil of the third relay is connected with an emitting electrode of the first triode, the other end of the coil is grounded, a first contact is connected with the first end of the main power supply through a switch of the first relay, a second contact is connected with the second end of the auxiliary power supply, and a third contact is connected with the second power supply input end of the power supply interface.
Preferably, the fixing means comprises:
the third telescopic rod is vertically arranged;
the four fourth fixed blocks are respectively and fixedly connected with the upper end and the lower end of the third telescopic rod, the other two fourth fixed blocks are respectively arranged on the left side and the right side of the third telescopic rod, and the four fourth fixed blocks are used for being in adsorption connection or adhesion connection with the installation part of the fixing device;
the two connecting rod assemblies are respectively arranged on the left side and the right side of the third telescopic rod and are positioned between the fourth fixing blocks above and below the third telescopic rod;
the connecting rod assembly includes:
the lower end of the second connecting rod is rotatably connected with the upper end of the third connecting rod through a first rotating shaft, and the first rotating shaft is fixedly connected to one side, close to the third telescopic rod, of a fourth fixing block on the left side or the right side;
the upper end of the second connecting rod is fixedly or rotatably connected with the left side or the right side of the lower end of the upper fourth fixed block, and the lower end of the third connecting rod is fixedly or rotatably connected (namely hinged) with the left side or the right side of the lower end of the lower fourth fixed block;
the lower end of the fourth connecting rod is fixedly or rotatably connected with a fourth fixed block above the fourth connecting rod;
the mounting plate is fixedly connected to the upper end of the fourth connecting rod, a plurality of vertical threaded holes are correspondingly formed in the peripheral sides of the mounting plate and the peripheral sides of the fourth fixed blocks, and the mounting plate is fixedly connected with the fourth fixed blocks above the mounting plate through bolts;
the air bag comprises a hollow elastic bag body, wherein a plurality of air bags are arranged on the periphery of the inner part of the hollow elastic bag body, and the air bags are connected with automatic pumping and inflating equipment.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view showing the construction of the thrombus treatment device in FIG. 1.
FIG. 3 is an enlarged view of a portion A of FIG. 1;
fig. 4 is a schematic structural view of an embodiment of the fixing device.
Fig. 5 is a circuit diagram of the power supply circuit of the present invention.
Fig. 6 is a schematic structural view of another embodiment of the fixing device of the present invention.
In the figure: 1. a blood pump; 11. a blood pump body; 111. a second chamber; 112. a first chamber; 113. a diaphragm; 12. a piston device; 121. a first mounting housing; 122. a piston; 123. a first connecting pipe; 124. a rotating electric machine; 125. a first connecting rod; 1251. a horizontal through hole; 126. a crankshaft; 1261. a U-shaped rod; 1262. a horizontal bar; 127. a first bevel gear; 128. a second bevel gear; 129. a third fixed block; 1210. installing a groove; 2. an oxygenator; 3. a temperature-changing water tank; 4. a thrombus treatment device; 41. a transparent housing; 42. a first fixed block; 43. a connecting portion; 44. a seventh connecting pipe; 45. a second connecting pipe; 46. a horizontal partition plate; 47. a third connecting pipe; 48. a fourth connecting pipe; 49. a vertical conduit; 410. a filtration pore; 411. a fifth connecting pipe; 412. a sixth connecting pipe; 413. a second fixed block; 414. a camera; 415. a first electric telescopic rod; 416. a squeegee; 5. a fixing device; 51. a second mounting housing; 52. a bolt; 53. a clamping plate; 54. a fixing plate; 55. an L-shaped connecting rod; 56. a suction cup; 57. a second telescopic rod; 58. a connecting plate; 59. a third telescopic rod; 510. a fourth fixed block; 511. a connecting rod assembly; 5111. a second connecting rod; 5112. a third connecting rod; 512. a fourth connecting rod; 513. mounting a plate; 514. a hollow elastic bag body; 515. an air bag; 516. a bolt; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; c1, a first capacitance; c2, a second capacitor; q1, the first triode; q2, third triode; d1, a diode; j1, a first relay; j2, second relay; j3, third relay; u1, operational amplifier; u2, NOT gate; u3, photoelectric isolator.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
The embodiment of the invention provides an extracorporeal membrane lung oxygenation device for medical emergency technology, as shown in fig. 1, comprising: the system comprises a blood pump 1, an oxygenator 2, a variable temperature water tank 3, a control host (which can be a control host adopted by the existing extracorporeal membrane oxygenation equipment), a blood vessel cannula connected to the inlet end of the blood pump 1, a blood inlet connected to the oxygenator 2 at the outlet end of the blood pump 1, and a blood inlet connected to the blood outlet of the oxygenator 2 in the variable temperature water tank 3, and further comprises:
a blood inlet of the thrombus treatment device 4 is connected with a blood outlet of the variable temperature water tank 3, and the thrombus treatment device 4 is electrically connected with the control host;
and the fixing device 5 is used for fixing the pipeline of the oxygenation equipment.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature-changing water tank is used for adjusting the temperature of blood and avoiding blood coagulation; the thrombus treatment device is arranged for treating thrombus and avoiding the blockage of the blood vessel caused by the re-infusion of the thrombus into the blood vessel; the fixing device is arranged for fixing the pipeline of the oxygenation equipment, so that the defect that only sticking (such as tape sticking) is easy to loosen (including the influence of the sticking part at the pipeline installation position, the weight and the material of the pipeline and the possibility of loosening after the sticking position is changed) is avoided.
In one embodiment, as shown in fig. 1, the blood pump 1 is a variable pressure blood pump 1 comprising:
a blood pump body 11, the blood pump body 11 including: a second chamber 111 (for entering blood), a first chamber 112, a septum 113; the blood pump body is divided into a second chamber 111 and a first chamber 112 by a flexible diaphragm;
two piston means 12;
the piston device 12 includes:
a first mounting housing 121, wherein a liquid inlet is arranged at the upper end of the first mounting housing 121;
the piston 122 is arranged in the first mounting shell 121, and the left end, the right end, the front end and the rear end of the piston 122 are respectively connected with the left end, the right end, the front end and the rear end of the shell 121 in a sealing manner;
a first connection pipe 123 having one end connected to the liquid inlet, and the other end of the first connection pipe 123 communicating with the first chamber 112;
a fluid (which may be physiological saline) is disposed in the housing 121 at the upper side of the piston 122 and in the first connection pipe 123 and the first chamber; preferably, the first connecting pipes of the two piston devices can be respectively connected with the first chamber through a three-way connecting pipe, and a control valve is arranged on the three-way connecting pipe;
a rotating motor 124 fixedly connected to one side of the first mounting housing 121 and electrically connected to the control host;
a first connecting rod 125 having a first end connected to the lower side of the piston 122, wherein a mounting groove 1210 is formed on the outer side of the lower end of the first mounting housing 121, and a second end of the first connecting rod 125 is located in the mounting groove 1210;
a crankshaft 126 connected to the first connecting rod 125, the crankshaft 126 being rotated by the rotating electric machine 124.
The working principle and the beneficial effects of the technical scheme are as follows: the rotating motor is connected with the control host, the control host controls the rotating motor to rotate (the control host controls the rotation angle, frequency, speed and cycle interval of the motor to rotate) to drive the crankshaft to rotate, the crankshaft drives the piston to reciprocate up and down through the first connecting rod, and the control host controls the piston to work, such as controlling the distance of the piston reciprocating up and down (to realize different pressures (compression degrees) of the first chamber); when the piston moves downwards, the fluid volume in the second chamber is reduced, so that the volume of the first chamber is increased, and blood is sucked; when the piston moves upwards, the fluid amount in the second chamber is increased, so that the volume of the first chamber is reduced (compressed) and blood is discharged; the first chamber is used for sucking and pushing blood out, and the pulsation similar to the heart of a human body is formed.
The technical scheme is that the variable pressure pump has small damage to blood cells compared with a vane pump; compared with the existing constant pressure pump, the blood pump of the technical scheme is similar to the human heart pulsating blood circulation, and compared with the constant pressure pump, the blood pump has a better circulation effect.
In one embodiment, as shown in FIG. 1, the crankshaft 126 includes: the device comprises a U-shaped rod 1261, horizontal rods 1262 are arranged on two sides of the upper end of the U-shaped rod 1261, and the two horizontal rods 1262 are respectively and rotatably connected with two sides of a mounting groove 1210;
a third fixed block is arranged at the lower end of the piston 122, the upper end of the first connecting rod 125 is rotatably connected with the third fixed block, a horizontal through hole 1251 is arranged at the lower end of the first connecting rod 125, and the lower end of the U-shaped rod 1261 passes through the horizontal through hole 1251; (preferably, the first connecting rod is in clearance fit with the horizontal through hole)
The rotating motor is fixedly connected to the outer side of the position, provided with the mounting groove, of the shell 121 and is positioned below the horizontal rod 1262;
a first bevel gear 127 fixedly coupled to an output shaft of the rotating electric machine;
and the second bevel gear 128 is fixedly connected to a horizontal rod 1262, and the second bevel gear 128 is in meshing transmission with the first bevel gear 127. Preferably, the crankshaft of the present application may be other existing crankshafts.
The working principle and the beneficial effects of the technical scheme are as follows: the structure has the advantage of simple structure, and the piston is driven to move up and down by the rotating motor.
In one embodiment, as shown in fig. 1-2, the thrombus treatment device 4 comprises:
a transparent shell 41, wherein a first fixed block 42 is arranged at the upper end of the transparent shell 41, a connecting part 43 (preferably, the connecting part can be a hook) is arranged at the upper end of the first fixed block 42, and the transparent shell 41 is provided with scales;
a pressure sensor connected within the transparent case 41;
a seventh connecting pipe 44, one end of which is arranged at the top end in the transparent shell 41, and the other end of which is connected with the negative pressure adjusting device; preferably, the negative pressure adjusting device can comprise an electric air pump, and air is pumped by the electric air pump, so that the negative pressure can be adjusted conveniently; other existing negative pressure adjusting devices can be adopted;
one end of the second connecting pipe 45 is arranged at the top end in the transparent shell 41, and the other end of the second connecting pipe is connected with the blood outlet of the variable temperature water tank 3;
two horizontal partition plates 46 which are arranged on the inner side wall of the transparent shell 41 at intervals up and down and divide the transparent shell 41 into an upper cavity, a middle cavity and a lower cavity;
one end of the vertical pipeline 49 is fixedly connected with the lower end of the horizontal partition plate 46 at the lower side, and the other end of the vertical pipeline 49 is fixedly connected with the inner lower end of the transparent shell 41;
a third connecting pipe 47 located at one side of the vertical pipe 49, wherein one end of the third connecting pipe 47 penetrates through the upper horizontal partition 46, and the other end of the third connecting pipe 47 penetrates through the lower horizontal partition 46 to communicate the upper chamber and the lower chamber;
a fourth connecting pipe 48, which is arranged on the horizontal partition plate 46 at the lower side and is positioned at the side of the vertical pipe 49, wherein the upper end of the fourth connecting pipe 48 is positioned in the middle cavity, and the lower end of the fourth connecting pipe 48 is positioned in the lower cavity;
a plurality of filtering holes 410 disposed at the one side of the vertical pipe 49;
a fifth connection pipe 411 connected to a lower end of the transparent case 41, and having one end communicating with the vertical pipe 49;
a sixth connecting pipe 412, one end of which is connected to the lower end of the transparent casing 41 and is located on one side of the vertical pipe 49 close to the filtering hole 410;
a second fixing block 413 disposed at one side of an upper end of the transparent case 41;
a micro camera 414 disposed on the second fixed block 413;
the first connecting pipe 123, the second connecting pipe 45, the third connecting pipe 47, the fourth connecting pipe 48, the fifth connecting pipe 411 and the sixth connecting pipe are all provided with electromagnetic valves;
the miniature camera 414, the electromagnetic valve and the pressure sensor of the negative pressure adjusting device are respectively and electrically connected with the control host.
Preferably, the transparent shell is further connected with an exhaust pipe for exhausting bubbles or other bubble processing devices;
the working principle and the beneficial effects of the technical scheme are as follows: the transparent shell 41 is provided with scales, so that the liquid level in the transparent shell can be observed conveniently;
the pressure sensor is used for detecting air pressure value information in the transparent shell and transmitting the air pressure value information to the control host, and the control host adjusts the negative pressure adjusting device according to the air pressure value information acquired by the pressure sensor so that the pressure in the transparent shell is a preset value;
when thrombus is treated, the control host firstly controls the electromagnetic valve on the second connecting pipe to be opened, blood containing thrombus and subjected to temperature regulation by the temperature-variable water tank is input into the upper cavity in the transparent shell, meanwhile, the control host opens the electromagnetic valve on the third connecting pipe and the electromagnetic valve on the fifth connecting pipe, the blood containing thrombus in the upper cavity is input into the lower cavity through the third connecting pipe and is positioned at one side of the vertical pipeline, which contains the filtering hole, the blood is filtered through the filtering hole to remove the thrombus, the blood without the thrombus passes through the inner side of the vertical pipeline, and the blood is output back to the human body through the fifth connecting;
when thrombus needs to be cleaned, the electromagnetic valves on the fourth connecting pipe and the sixth connecting pipe are opened, cleaning liquid is input through the fourth connecting pipe, the filter holes are washed, and the liquid containing thrombus after washing is discharged through the sixth connecting pipe;
the camera is used for gathering transparent casing image information to follow and draws the characteristic, acquire liquid level scale information (and transparent casing internal bubble information, can also acquire blood turbidity information, can wash the filtration pore according to turbidity information) and transmit for the main control system like accessible image information, the main control system controls thrombus processing apparatus work according to image information, can be convenient for automatic control (still can realize the liquid level anomaly and report to the police).
In one embodiment, as shown in fig. 3, further comprising:
a first electric telescopic rod 415, a fixed end of which is fixedly connected in the middle cavity, and the lower end of the fixed end penetrates through the lower horizontal partition plate 46, and the first electric telescopic rod is electrically connected with the control host;
and the scraper 416 is fixedly connected to the telescopic end of the first electric telescopic rod 415, and the shape of one side, close to the vertical pipeline, of the scraper 416 is matched with that of the vertical pipeline 49.
The working principle and the beneficial effects of the technical scheme are as follows: when thrombus is cleaned, the control host controls the first electric telescopic rod to stretch and drive the scraper to move up and down, and the filtering hole is cleaned; the scraper is used for hanging the fourth connecting pipe for washing, so that the blood plug is cleaned quickly.
In one embodiment, as shown in fig. 4, the fixing device 5 includes:
the front end and the rear end of the second mounting shell 51 are provided with openings, and the upper end and the left end and the right end of the second mounting shell 51 are provided with threaded through holes;
a bolt 52 connected in the threaded through hole;
a clamping plate 53 provided at one end of the bolt 52 in the second mounting case 51;
a fixing plate 54 fixedly connected to a lower end of the second mounting case 51;
the two L-shaped connecting rods 55 are respectively arranged at the left side and the right side of the fixing plate 54, the vertical ends of the two L-shaped connecting rods 55 are rotatably connected with the left side and the right side of the fixing plate 54, and the horizontal ends of the two L-shaped connecting rods 55 are arranged close to each other;
two suction cups 56 provided at the horizontal ends of the L-shaped connecting rods 55; preferably, the sucker can be connected with an electric pumping and inflating pump through a connecting pipe for pumping and inflating;
a second telescopic rod 57 fixedly connected to the lower end of the fixing plate 54;
and the connecting plate 58 is fixedly connected to the lower end of the second telescopic rod 57, and the connecting plate 58 is used for connecting an adhesive piece. Preferably, the second mounting shell can be rotatably connected with the fixing plate through a threaded rod, so that the direction of the second mounting shell can be conveniently adjusted.
The working principle and the beneficial effects of the technical scheme are as follows: openings are formed in the front end and the rear end of the second mounting shell 51 and used for penetrating a pipeline (one or more pipelines can be penetrated in the opening), the clamping plate is enabled to be close to the pipeline clamping by rotating bolts arranged at the upper end, the left end and the right end of the second mounting shell 51, the pipeline can be clamped reliably by the up-down clamping and the left-right clamping, and the pipeline loosening is avoided;
the angle between the L-shaped connecting rod and the fixed plate is adjusted by rotating the L-shaped connecting rods on the left side and the right side of the fixed plate, so that the sucker can be conveniently adsorbed in different directions (such as different directions of extracorporeal membrane oxygenation equipment or a bed body and the like, and can be adsorbed according to needs), the connection is convenient, and the adsorption connection is stable and reliable and is not easy to loosen; the height of pasting the piece can be adjusted through the telescopic link, and the piece can be selectively adsorbed or pasted or adsorbed and pasted as required, so that the connection mode is flexible, and different use requirements can be conveniently met.
In one embodiment, as shown in fig. 5, the power supply interface of the oxygenation device is connected to a primary power supply and a secondary power supply (preferably, the secondary power supply may be a battery) via a power supply circuit, and the primary power supply and the secondary power supply are switched via the power supply circuit, wherein the power supply circuit comprises:
the device comprises a temperature control module, a voltage detection module and a voltage control module;
the temperature control module includes:
the first resistor R1 is a temperature-sensitive resistor and is arranged on the main power supply, and the first end of the first resistor R1 is connected with an auxiliary power supply through a second integrated chip;
the positive input end of the operational amplifier U1 is connected with the second end of the first resistor R1, the second end of the first resistor R1 is also grounded through the second resistor R2, and the negative input end is grounded through the third resistor R3; u1 can also be a comparator;
a fourth resistor R4, which is a variable resistor, one end of which is connected to the second IC and the second end of the first resistor R1, and the other end of the fourth resistor R4 is connected to the negative input terminal of the operational amplifier U1;
the input end of the NOT gate U2 is connected with the output end of the operational amplifier U1;
a first relay J1, wherein a first coil end of the first relay J1 is connected with a first main power supply end, and a second coil end of the first relay J1 is connected with an output end of a NOT gate U2;
the cathode of the diode D1 is connected with the first end of the main power supply, and the anode of the diode D1 is connected with the output end of the NOT gate U2;
the voltage detection module includes:
a positive terminal of the photoelectric isolator U3 is connected with a first end of a fifth resistor R5, and a second end of the fifth resistor R5 is connected with a first end of a main power supply through a switch of a first relay J1;
one end of the sixth resistor R6 is connected with the positive end of the optoelectronic isolator U3, and the other end of the sixth resistor R6 is connected with the negative end of the optoelectronic isolator U3 and the second end of the main power supply;
a second capacitor C2, having a first end connected to the collector of the opto-isolator U3 and a second end connected to the emitter of the opto-isolator U3;
the voltage control module includes:
the first input end of the first integrated chip is connected with the second end of the main power supply, the second input end of the first integrated chip is connected with the first end of the main power supply through a switch of a first relay J1 (namely, the switch is closed or opened through the on-off of a coil, so that a circuit connected with the first end of the main power supply is disconnected or connected), and the output end of the first integrated chip is connected with a collector of a photoelectric isolator U3;
a collector of the first triode Q1 is connected with the output end of the first integrated chip;
a collector of the second triode is connected with a base electrode of the first triode Q1, and an emitter of the second triode is grounded through a seventh resistor R7;
an eighth resistor R8, one end of which is connected to the emitter of the opto-isolator U3 and the second end of the second capacitor C2, and the other end of which is grounded;
one end of the first capacitor C1 is connected with the emitter of the photoelectric isolator U3 and the second end of the second capacitor C2, and the other end of the first capacitor C1 is grounded;
one end of a coil of the second relay J2 is connected with an emitter of the first triode Q1, the other end of the coil is grounded, a first contact is connected with the second end of the main power supply, a second contact is connected with the first end of the auxiliary power supply, and a third contact is connected with the first power supply input end of the power supply interface;
and one end of a coil of the third relay J3 is connected with an emitter of a first triode Q1, the other end of the coil is grounded, a first contact is connected with the first end of a main power supply through a switch of the first relay J1, a second contact is connected with the second end of an auxiliary power supply, and a third contact is connected with the second power supply input end of a power supply interface. When the coil is powered off, the second contact and the third contact are connected, and after the coil is powered on, the first contact and the third contact are connected.
The working principle and the beneficial effects of the technical scheme are as follows: by arranging the main power supply and the auxiliary power supply, switching the auxiliary power supply through the power supply circuit, and arranging the voltage detection circuit, the voltage control circuit and the temperature control circuit, the auxiliary power supply can be switched when the voltage of the main power supply is abnormal (such as voltage abnormality caused by factors such as main power supply circuit reason or power failure) or the temperature is abnormal, so that the work of the equipment is prevented from being influenced, and the working reliability of the equipment is improved;
in the temperature control circuit, the temperature information of the main power supply is sensed through R1 and converted into voltage information, and the coil of the first relay is powered on and off through comparison with U1 and the action of U2, so that a circuit connected with the first end of the main power supply is disconnected or connected, and the voltage detection circuit automatically controls the auxiliary power supply to be connected with a power supply interface after detecting the voltage change, thereby ensuring the reliable work of the equipment; the D1 is used for protecting the first relay (for example, when the coil of the relay acts to generate reverse voltage, the protection is used for adjusting the corresponding trigger voltage through the R4;
in the voltage detection circuit, voltages are detected through the actions of U3, R5 and R6 so as to output different levels to the voltage control circuit, and C2 is used for filtering, namely clamping action; in the voltage control circuit, the power supply interface is connected with the main power supply and the auxiliary power supply through the actions of Q1, Q2, J2 and J3, wherein C1 is used for filtering.
In one embodiment, as shown in fig. 6, the fixing device 5 includes:
a third telescopic rod 59 vertically arranged;
four fourth fixing blocks 510, two of the fourth fixing blocks 510 are respectively and fixedly connected with the upper end and the lower end of the third telescopic rod 59, the other two fourth fixing blocks 510 are respectively arranged on the left side and the right side of the third telescopic rod 59, and the four fourth fixing blocks 510 are used for being in adsorption connection (for example, adsorption through the sucking disc or magnetic adsorption) or adhesion connection with the installation part of the fixing device 5;
the two connecting rod assemblies 511 are respectively arranged on the left side and the right side of the third telescopic rod 59 and are positioned between the fourth fixing blocks 510 on the upper side and the lower side of the third telescopic rod 59;
the link assembly 511 includes:
the lower end of the second connecting rod 5111 is rotatably connected with the upper end of the third connecting rod 5112 through a first rotating shaft, and the first rotating shaft is fixedly connected to one side of the fourth fixed block 510 on the left side or the right side, which is close to the third telescopic rod 59;
the upper end of the second connecting rod 5111 is fixedly or rotatably connected with the left side or the right side of the lower end of the fourth fixed block 510 above, and the lower end of the third connecting rod 5112 is fixedly or rotatably connected with the left side or the right side of the lower end of the fourth fixed block 510 below;
the fourth connecting rod 512 is vertically arranged, and the lower end of the fourth connecting rod 512 is fixedly or rotatably connected with the fourth fixing block 510 above;
the mounting plate 513 is fixedly connected to the upper end of the fourth connecting rod 512, a plurality of vertical threaded holes are correspondingly formed in the peripheral sides of the mounting plate 513 and the peripheral sides of the fourth fixed block 510, and the mounting plate 513 is fixedly connected with the fourth fixed block 510 above the mounting plate through bolts 51652;
the hollow elastic bag body 514, the inside week side of the hollow elastic bag body 514 sets up a plurality of gasbags 515, automatic pump inflation equipment (can be above-mentioned electronic pump etc. that takes out of) is connected to gasbag 515.
Preferably, the hollow bag body can be formed by connecting a plurality of hollow connecting ends as required, so that the annular size of the formed annular bag body can be conveniently adjusted as required;
the working principle and the beneficial effects of the technical scheme are as follows: during installation, any one or more of the four fourth fixing blocks 510 arranged up, down, left and right can be adsorbed or adhered to the part where the fixing device is installed as required, so that the fixing device can be conveniently fixed according to the requirements of installation space and the installation direction of the equipment pipeline;
the fourth connecting rod is arranged and can be rotated to adjust the direction of the pipeline, and the pipeline is fixed through the bolt after being adjusted, so that the direction of the pipeline can be conveniently adjusted according to installation requirements;
the third telescopic rod is arranged, so that the distance between the pipeline and the lower fourth fixed block can be conveniently adjusted, and different installation requirements on the height can be met;
the hollow bag body and the air bag inside the hollow bag body are arranged, the inner diameter of the vacuum bag body can be adjusted through inflation, the hollow bag body is abutted to the pipeline, the pipeline can be clamped conveniently in different directions, the pipeline is stably installed, the structure is convenient to adjust according to the diameter of the pipeline (one or more combined pipelines), the adjustment is convenient, and the clamping is reliable.
The technical scheme is convenient for reliably fixing the pipeline of the equipment.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An extracorporeal membrane lung oxygenation device for medical emergency techniques, comprising: blood pump (1), oxygenator (2), alternating temperature water tank (3), main control system, blood pump (1) entrance connection blood vessel intubate, the blood import of oxygenator (2) is connected to blood pump (1) exit end, the blood import of alternating temperature water tank (3) is connected the blood export of oxygenator (2), its characterized in that still includes:
a blood inlet of the thrombus treatment device (4) is connected with a blood outlet of the variable temperature water tank (3), and the thrombus treatment device (4) is electrically connected with the control host;
the fixing device (5) is used for fixing the pipeline of the oxygenation device.
2. Medical emergency technical extracorporeal membrane lung oxygenation device according to claim 1, characterized in that said blood pump (1) is a variable pressure blood pump (1) comprising:
a blood pump body (11), the blood pump body (11) comprising: a second chamber (111), a first chamber (112), a diaphragm (113);
two piston devices (12);
the piston device (12) comprises:
a first mounting shell (121), wherein the upper end of the first mounting shell (121) is provided with a liquid inlet;
the piston (122) is arranged in the first mounting shell (121), and the left end, the right end, the front end and the rear end of the piston (122) are respectively connected with the left end, the right end, the front end and the rear end of the first mounting shell in a sealing manner;
a first connection pipe (123) having one end connected to the liquid inlet and the other end of the first connection pipe (123) communicating with the first chamber (112);
fluid is arranged on the upper side of the piston (122) in the first mounting shell, in the first connecting pipe (123) and in the first cavity (112);
the rotating motor (124) is fixedly connected to one side of the first mounting shell (121) and is electrically connected with the control host;
a first connecting rod (125) with a first end connected to the lower side of the piston (122), wherein a mounting groove (1210) is arranged on the outer side of the lower end of the first mounting shell (121), and a second end of the first connecting rod (125) is positioned in the mounting groove (1210);
and a crankshaft (126) connected to the first connecting rod (125), wherein the crankshaft (126) is rotated by a rotating electric machine (124).
3. The extracorporeal membrane oxygenation device of medical emergency technology as claimed in claim 2,
the crankshaft (126) includes: the device comprises a U-shaped rod (1261), horizontal rods (1262) are arranged on two sides of the upper end of the U-shaped rod (1261), and the two horizontal rods (1262) are respectively connected with two sides of a mounting groove (1210) in a rotating mode;
a third fixed block (129) is arranged at the lower end of the piston (122), the upper end of the first connecting rod (125) is rotatably connected with the third fixed block (129), a horizontal through hole (1251) is arranged at the lower end of the first connecting rod (125), and the lower end of the U-shaped rod (1261) penetrates through the horizontal through hole (1251);
the rotating motor is fixedly connected to the outer side of the first mounting shell body at the position where the mounting groove (1210) is formed and is positioned below the horizontal rod (1262);
a first bevel gear (127) fixedly connected to an output shaft of the rotating electrical machine;
the second bevel gear (128) is fixedly connected to a horizontal rod (1262), and the second bevel gear (128) is in meshing transmission with the first bevel gear (127).
4. Medical emergency technical extracorporeal membrane lung oxygenation device according to claim 1, characterised in that said thrombus treatment means (4) comprise:
the device comprises a transparent shell (41), wherein a first fixing block (42) is arranged at the upper end of the transparent shell (41), a connecting part (43) is arranged at the upper end of the first fixing block (42), and scales are arranged on the transparent shell (41);
a pressure sensor connected within the transparent housing (41);
one end of the seventh connecting pipe (44) is arranged at the top end in the transparent shell (41), and the other end of the seventh connecting pipe is connected with the negative pressure adjusting device;
one end of the second connecting pipe (45) is arranged at the top end in the transparent shell (41), and the other end of the second connecting pipe is connected with the blood outlet of the variable temperature water tank (3);
the two horizontal clapboards (46) are arranged on the inner side wall of the transparent shell (41) at intervals up and down and divide the transparent shell (41) into an upper cavity, a middle cavity and a lower cavity;
one end of the vertical pipeline (49) is fixedly connected with the lower end of the lower horizontal partition plate (46), and the other end of the vertical pipeline is fixedly connected with the inner lower end of the transparent shell (41);
the third connecting pipe (47) is positioned on one side of the vertical pipeline (49), one end of the third connecting pipe (47) penetrates through the upper horizontal partition plate (46), and the other end of the third connecting pipe (47) penetrates through the lower horizontal partition plate (46) to communicate the upper cavity with the lower cavity;
the fourth connecting pipe (48) is arranged on the horizontal partition plate (46) on the lower side and is positioned on one side of the vertical pipeline (49), the upper end of the fourth connecting pipe (48) is positioned in the middle cavity, and the lower end of the fourth connecting pipe (48) is positioned in the lower cavity;
a plurality of filtering holes (410) arranged at one side of the vertical pipeline (49);
a fifth connecting pipe (411) connected to the lower end of the transparent casing (41), and one end of the fifth connecting pipe is communicated with the vertical pipeline (49);
a sixth connecting pipe (412), one end of which is connected to the lower end of the transparent shell (41) and is positioned on one side of the vertical pipeline (49) close to the filtering hole (410);
a second fixed block (413) arranged on one side of the upper end of the transparent shell (41);
a micro camera (414) disposed on the second fixed block (413);
the first connecting pipe (123), the second connecting pipe (45), the third connecting pipe (47), the fourth connecting pipe (48), the fifth connecting pipe (411) and the sixth connecting pipe are all provided with electromagnetic valves;
the miniature camera (414), the electromagnetic valve, the negative pressure adjusting device and the pressure sensor are respectively electrically connected with the control host.
5. The extracorporeal membrane lung oxygenation device of medical emergency technology of claim 4, further comprising:
the fixed end of the first electric telescopic rod (415) is fixedly connected in the middle cavity, the lower end of the fixed end penetrates through the horizontal partition plate (46) on the lower side, and the first electric telescopic rod (415) is electrically connected with the control host;
the scraper (416) is fixedly connected to the telescopic end of the first electric telescopic rod (415), and the shape of one side, close to the vertical pipeline, of the scraper (416) is matched with the shape of the vertical pipeline (49).
6. The extracorporeal membrane oxygenation device of medical emergency technology as claimed in claim 1,
the fixing device (5) comprises:
the front end and the rear end of the second mounting shell (51) are provided with openings, and the upper end and the left end and the right end of the second mounting shell (51) are provided with threaded through holes;
a bolt (52) connected within the threaded through-hole;
a clamping plate (53) provided at one end of the bolt (52) in the second mounting case (51);
a fixing plate (54) fixedly connected to the lower end of the second mounting housing (51);
the two L-shaped connecting rods (55) are respectively arranged on the left side and the right side of the fixing plate (54), the vertical ends of the two L-shaped connecting rods (55) are rotatably connected with the left side and the right side of the fixing plate (54), and the horizontal ends of the two L-shaped connecting rods (55) are arranged close to each other;
two suction cups (56) arranged at the horizontal ends of the L-shaped connecting rods (55);
the second telescopic rod (57) is fixedly connected to the lower end of the fixing plate (54);
the connecting plate (58) is fixedly connected to the lower end of the second telescopic rod (57), and the connecting plate (58) is used for connecting an adhesive part.
7. The extracorporeal membrane lung oxygenation device of medical emergency technology of claim 1, wherein the power supply interface of the oxygenation device is connected with the primary power supply and the secondary power supply through a power supply circuit, and the primary power supply and the secondary power supply are switched through the power supply circuit, and the power supply circuit comprises:
the device comprises a temperature control module, a voltage detection module and a voltage control module;
the temperature control module includes:
the first resistor (R1) is a temperature-sensitive resistor and is arranged on the main power supply, and the first end of the first resistor (R1) is connected with an auxiliary power supply through a second integrated chip;
the positive input end of the operational amplifier (U1) is connected with the second end of the first resistor (R1), the second end of the first resistor (R1) is also grounded through the second resistor (R2), and the negative input end of the operational amplifier is grounded through the third resistor (R3);
the fourth resistor (R4) is a variable resistor, one end of the fourth resistor (R4) is connected with the second integrated chip and the second end of the first resistor (R1), and the other end of the fourth resistor (R4) is connected with the negative input end of the operational amplifier (U1);
the input end of the NOT gate (U2) is connected with the output end of the operational amplifier (U1);
a first relay (J1), wherein a first coil end of the first relay (J1) is connected with a first main power supply end, and a second coil end of the first relay (J1) is connected with an output end of a NOT gate (U2);
the negative electrode of the diode (D1) is connected with the first end of the main power supply, and the positive electrode of the diode (D1) is connected with the output end of the NOT gate (U2);
the voltage detection module includes:
the positive end of the photoelectric isolator (U3) is connected with the first end of a fifth resistor (R5), and the second end of the fifth resistor (R5) is connected with the first end of the main power supply through a switch of a first relay (J1);
a sixth resistor (R6), one end of which is connected with the positive terminal of the photoelectric isolator (U3), and the other end of which is connected with the negative terminal of the photoelectric isolator (U3) and the second terminal of the main power supply;
a second capacitor (C2), the first end of which is connected with the collector of the optoelectronic isolator (U3), and the second end of which is connected with the emitter of the optoelectronic isolator (U3);
the voltage control module includes:
the first input end of the first integrated chip is connected with the second end of the main power supply, the second input end of the first integrated chip is connected with the first end of the main power supply through a switch of a first relay (J1), and the output end of the first integrated chip is connected with a collector electrode of a photoelectric isolator (U3);
the collector of the first triode (Q1) is connected with the output end of the first integrated chip;
a collector of the second triode is connected with the base of the first triode (Q1), and an emitter of the second triode is grounded through a seventh resistor (R7);
an eighth resistor (R8) having one end connected to the emitter of the opto-isolator (U3) and the second end of the second capacitor (C2), and the other end grounded;
a first capacitor (C1), one end of which is connected with the emitter of the photoelectric isolator (U3) and the second end of the second capacitor (C2), and the other end of which is grounded;
one end of a coil of the second relay (J2) is connected with an emitter of the first triode (Q1), the other end of the coil is grounded, a first contact is connected with the second end of the main power supply, a second contact is connected with the first end of the auxiliary power supply, and a third contact is connected with the first power supply input end of the power supply interface;
and one end of a coil of the third relay (J3) is connected with an emitter of the first triode (Q1), the other end of the coil is grounded, a first contact is connected with the first end of the main power supply through a switch of the first relay (J1), a second contact is connected with the second end of the auxiliary power supply, and a third contact is connected with the second power supply input end of the power supply interface.
8. The extracorporeal membrane oxygenation device of medical emergency technology as claimed in claim 1,
the fixing device (5) comprises:
a third telescopic rod (59) arranged vertically;
the four fourth fixing blocks (510), two of the fourth fixing blocks (510) are respectively and fixedly connected with the upper end and the lower end of the third telescopic rod (59), the other two fourth fixing blocks (510) are respectively arranged on the left side and the right side of the third telescopic rod (59), and the four fourth fixing blocks (510) are used for being in adsorption connection or adhesion connection with the installation part of the fixing device (5);
the two connecting rod assemblies (511) are respectively arranged on the left side and the right side of the third telescopic rod (59) and are positioned between the fourth fixing blocks (510) above and below the third telescopic rod (59);
the link assembly (511) includes:
the lower end of the second connecting rod (5111) is rotatably connected with the upper end of the third connecting rod (5112) through a first rotating shaft, and the first rotating shaft is fixedly connected to one side, close to the third telescopic rod (59), of a fourth fixing block (510) on the left side or the right side;
the upper end of the second connecting rod (5111) is fixedly or rotatably connected with the left side or the right side of the lower end of the fourth fixing block (510) above, and the lower end of the third connecting rod (5112) is fixedly or rotatably connected with the left side or the right side of the lower end of the fourth fixing block (510) below;
the lower end of the fourth connecting rod (512) is fixedly or rotatably connected with a fourth fixed block (510) above;
the mounting plate (513) is fixedly connected to the upper end of the fourth connecting rod (512), a plurality of vertical threaded holes are correspondingly formed in the peripheral sides of the mounting plate (513) and the peripheral sides of the fourth fixed block (510), and the mounting plate (513) is fixedly connected with the fourth fixed block (510) above through bolts (516) (52);
the air bag comprises a hollow elastic bag body (514), wherein a plurality of air bags (515) are arranged on the inner peripheral side of the hollow elastic bag body (514), and the air bags (515) are connected with automatic pumping and inflating equipment.
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| CN202010270224.XA CN111588931A (en) | 2020-04-08 | 2020-04-08 | Extracorporeal membrane lung oxygenation equipment for medical first-aid technology |
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| CN202010270224.XA CN111588931A (en) | 2020-04-08 | 2020-04-08 | Extracorporeal membrane lung oxygenation equipment for medical first-aid technology |
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| CN115054753A (en) * | 2022-07-20 | 2022-09-16 | 安徽医科大学第二附属医院 | Integrated gastric juice collecting and back-conveying device |
| WO2023217001A1 (en) * | 2022-05-08 | 2023-11-16 | 深圳汉诺医疗科技有限公司 | Method and system for automatically switching power supply upon power supply abnormality in ecmo device system |
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