CN107929870B - Single-cylinder double-tube radiography device - Google Patents
Single-cylinder double-tube radiography device Download PDFInfo
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- CN107929870B CN107929870B CN201711348630.8A CN201711348630A CN107929870B CN 107929870 B CN107929870 B CN 107929870B CN 201711348630 A CN201711348630 A CN 201711348630A CN 107929870 B CN107929870 B CN 107929870B
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/481—Diagnostic techniques involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/007—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
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- Life Sciences & Earth Sciences (AREA)
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- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Radiology & Medical Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical equipment and discloses a single-cylinder double-tube radiography device which comprises a base and a shell, wherein a fixing seat is respectively arranged on the front side and the right side of the base, an arc groove is arranged at the top of the fixing seat, a clamping hole is arranged at the top of the arc groove, a concave hole is arranged at the outer side of the arc groove, a clamping shaft is arranged at the bottom of the concave hole, a spring is sleeved outside the clamping shaft, the top end of the spring is fixedly connected with a movable clamping position, a first injector and a second injector are respectively inlaid in the arc grooves on the front side and the right side of the base, a first piston handle and a second piston handle of the first injector and the second injector are respectively inlaid in a second clamping groove and a first clamping groove, the other side of the first clamping plate and the second clamping plate are respectively connected with a piston rod and a reset spring, and a control panel is arranged at the top of the shell.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a single-cylinder double-tube radiography device.
Background
The ultrasonic cardiogram acoustic contrast project examination is to inject contrast agent into the blood vessel of a patient on the basis of the heart color Doppler ultrasound examination, and is used for observing the intra-cardiac and intra-pulmonary shunt of the patient, enhancing Doppler signals and enhancing the display of endocardial border. In the prior art, medical staff is required to manually operate when preparing contrast agent and injecting contrast agent, but the manual operation has the influence of factors such as unstable holding, insufficient strength, time delay and the like of operators, so that the efficiency is low, the cost of manpower resources is high, the contrast effect is poor and the like. Besides manual operation, a sonographer can be adopted, ultrasonic waves are adopted for sonographer treatment of the contrast agent, and microbubbles generated by the contrast agent can meet the requirement of contrast, but the sonographer has high instrument price, special contrast agent is needed, medical cost is high, few hospitals have conditional purchase, and the sonographer is only used in scientific research at present. The presence of the above factors makes it difficult to widely popularize the examination item in clinical examination. Therefore, there is a need to develop a single cylinder dual tube contrast device.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a single-cylinder double-tube radiography device which has the advantages of simple structure, convenient operation, automatic combination of contrast agent and air to form uniform and stable contrast agent microbubbles and the like, and solves the problem of high medical cost caused by using a sonometer to carry out sono-vibration treatment on the contrast agent through ultrasonic waves to form the contrast agent microbubbles.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a two-tube radiography device of single cylinder, includes base, fixing base, first syringe, second syringe, activity screens, medical three way connection, cylinder, five-way solenoid valve, air pump, shell, control panel, and the base openly is equipped with the fixing base respectively with the right flank, and the fixing base top is equipped with circular arc recess, and circular arc recess top is equipped with the shrinkage pool, and the shrinkage pool bottom is equipped with the card axle, and the cover has the spring outside the card axle, and spring top fixed connection movable screens, first syringe, second syringe inlay respectively in the circular arc recess of base openly and right flank, and first syringe and second syringe's first piston handle, second piston handle inlay respectively in second draw-in groove and first draw-in groove, and first draw-in groove and second draw-in groove set up respectively in first cardboard and second cardboard, and second cardboard another side are being connected piston rod and reset spring respectively, and piston rod are cylinder component, and the fixed block is being connected to the reset spring other end, and the cylinder left side is equipped with five-way solenoid valve, and the left side is equipped with the battery, and the left side is equipped with the air pump, and the air pump is equipped with the shell top outside in the shell.
Preferably, the spring bottom is connected to the clamp shaft and the spring is rotatable ninety degrees about the clamp shaft.
Preferably, the top of the movable clamping position is arc-shaped, and the diameter of the arc is equal to that of the first injector and the second injector.
Preferably, the first limiting block and the second limiting block at the top of the first injector and the second injector are respectively embedded in the clamping holes on the front surface and the right side surface of the base in interference fit (relation).
Preferably, the front surface and the right side surface of the shell are respectively provided with a through groove, one end of each through groove is provided with a through hole, and the rear side surface of the shell is provided with a vent hole and a power jack.
Preferably, the injection ends of the first injector and the second injector are respectively provided with threads, and the injection ends of the first injector and the second injector are respectively connected with a first interface and a second interface of the medical three-way joint.
Preferably, the medical three-way connector can be adjusted by a rotary switch to form two paths, and the first path is: the first interface and the second interface are opened, and the third interface is closed; the second is: the first interface is closed, and the second interface and the third interface are opened.
Preferably, the air pump air delivery end is connected with the five-way electromagnetic valve air inlet end, and the five-way electromagnetic valve air outlet end is connected with the air cylinder air inlet end.
Preferably, the power input end of the air pump is connected with the power output end of the control panel, and the air pump controls the motor to work through a pressure switch arranged on the air pump, so that the air pressure in the tank body of the air pump is kept in a stable state.
Preferably, the power input end of the control panel is connected with the power socket, the bottom of the control panel is also provided with a single chip microcomputer, the control power output end of the single chip microcomputer is connected with the power input end of the five-way electromagnetic valve, and the single chip microcomputer controls corresponding actions of the five-way electromagnetic valve according to control signals.
(III) beneficial effects
Compared with the prior art, the invention provides a single-cylinder double-tube radiography device, which has the following beneficial effects:
this double-barrelled radiography device of single cylinder, through the structural connection between cylinder, reset spring, the medical three way connection, then the piston rod through the cylinder drives the second piston handle of second syringe and stretches out and draws back, and then avoided manual control radiography syringe often to have the unstable problem of gripping, simultaneously through simple structure and convenient operation, and then replace the high acoustic vibration appearance of instrument price, medical cost, automatic combine contrast agent and air to form the even just stable contrast agent microbubble of size, optimize the inspection flow, improve inspection efficiency and the accuracy of inspection.
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 and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a schematic view of a base structure of the present invention;
FIG. 4 is a schematic view of the structure of the housing of the present invention;
FIG. 5 is a top view of the piston rod of the present invention in an extended, retracted state with the return spring;
FIG. 6 is a top view of the piston rod of the present invention in a retracted, return spring extended, return state;
FIG. 7 is a schematic view of a cylinder according to the present invention;
FIG. 8 is a schematic diagram showing the connection of the fixed block, the return spring and the second clamping plate structure;
FIG. 9 is a schematic view of a medical three-way connector according to the present invention;
FIG. 10 is a cross-sectional view of the structure between the movable detent, spring and fixed seat of the present invention;
FIG. 11 is a schematic diagram of a system according to the present invention.
In the figure: 1-base, 2-fixing seat, 21-concave hole, 22-clamping shaft, 23-spring, 24-arc groove, 25-clamping hole, 3-first syringe, 31-first stopper, 32-first piston handle, 4-second syringe, 41-second stopper, 42-second piston handle, 5-movable clamping position, 6-medical three-way joint, 61-first interface, 62-second interface, 63-third interface, 7-rotary switch, 9-cylinder, 91-piston rod, 92-first clamping plate, 93-first clamping groove, 10-five-way electromagnetic valve, 11-air pump, 12-storage battery, 13-fixing block, 131-reset spring, 132-second clamping plate, 133-second clamping groove, 14-shell, 141-through groove, 142-through hole, 15-control panel, 16-vent hole, 17-power socket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the drawings, the invention provides a technical scheme that: the single-cylinder double-tube radiography device comprises a base 1, a fixed seat 2, a first injector 3, a second injector 4, a movable clamping position 5, a medical three-way joint 6, a cylinder 9, a five-way electromagnetic valve 10, an air pump 11, a shell 14 and a control panel 15, wherein the front surface and the right side surface of the base 1 are respectively provided with the fixed seat 2, the top of the fixed seat 2 is provided with an arc groove 24, the top of the arc groove 24 is provided with a clamping hole 25, the outer side of the arc groove 24 is provided with a concave hole 21, the bottom of the concave hole 21 is provided with a clamping shaft 22, the outer side of the clamping shaft 22 is sleeved with a spring 23, the top end of the spring 23 is fixedly connected with the movable clamping position 5, the first injector 3 and the second injector 4 are respectively embedded in the arc grooves 24 on the front surface and the right side surface of the base 1, a first piston handle 32 and a second piston handle 42 of the first injector 3 and the second injector 4 are respectively embedded in a second clamping groove 133 and a first clamping groove 93, the first draw-in groove 93 and second draw-in groove 133 set up respectively in first cardboard 92 and second cardboard 132, piston rod 91 and reset spring 131 are being connected respectively to first cardboard 92 and second cardboard 132 another side, piston rod 91 is cylinder 9 component, reset spring 131 other end is connecting fixed block 13, fixed block 13 and reset spring 131 are all removable, prevent that reset spring 131 live time and produce tired situation and then influence the promotion effect of first piston handle 32, cylinder 9 left side is equipped with five solenoid valve 10, five solenoid valve 10 left side is equipped with air pump 11, air pump 11 left side is equipped with battery 12, shell 14 cover is inlayed in base 1 top outside, the shell 14 top is equipped with control panel 15.
The bottom of the spring 23 is connected with the clamping shaft 22, and the spring 23 can rotate ninety degrees around the clamping shaft 22, so that the movable clamping position 5 can rotate.
The top of the movable clamping position 5 is arc-shaped, the diameter of the arc is equal to the diameters of the first injector 3 and the second injector 4, when the new first injector 3 and the new second injector 4 are replaced, the movable clamping position 5 rotates ninety degrees, the movable clamping position 5 is parallel to the first injector 3 and the second injector 4 respectively, after the new first injector 3 and the new second injector 4 are replaced, the movable clamping position 5 rotates ninety degrees, the movable clamping position 5 is perpendicular to the first injector 3 and the second injector 4 respectively, the top of the movable clamping position 5 is convenient to compress and fix the tops of the first injector 3 and the second injector 4, and the first injector 3 and the second injector 4 are prevented from loosening during injection.
The first limiting block 31 and the second limiting block 41 at the top of the first injector 3 and the second injector 4 are respectively embedded in the clamping holes 25 on the front surface and the right side surface of the base 1 in an interference fit mode.
The front and right sides of the shell 14 are provided with through grooves 141, one end of each through groove 141 is provided with a through hole 142, and the rear side of the shell 14 is provided with a vent hole 16 and a power jack 17, so that the air pump 11 can work normally in a ventilation mode.
The injection ends of the first injector 3 and the second injector 4 are respectively provided with threads, and the injection ends of the first injector 3 and the second injector 4 are connected with a first interface 61 and a second interface 62 of the medical three-way joint 6.
The medical three-way connector 6 can be adjusted by the rotary switch 7 to form two paths, wherein the first path is: the first interface 61 and the second interface 62 are opened, the third interface 63 is closed, namely, the first injector 3 and the second injector 4 form a loop, so that the air passing through the first injector 3 and the contrast agent in the second injector 4 are mixed to form contrast agent microbubbles before the contrast agent is injected into the vein end of a patient; the second is: the first interface 61 is closed, the second interface 62 and the third interface 63 are opened, namely, the second injector 4 and the third interface 63 form a loop, the third interface 63 is connected with the intravenous injection end of the patient through an infusion tube and an infusion needle, and then the contrast agent microbubbles synthesized in the second injector 4 are injected into the vein of the patient, so that the examination of subsequent contrast projects is facilitated.
The air delivery end of the air pump 11 is connected with the air inlet end of the five-way electromagnetic valve 10, the air outlet end of the five-way electromagnetic valve 10 is connected with the air inlet end of the air cylinder 9, and the air pump 11 is used for providing air power for the air cylinder 9 through the five-way electromagnetic valve 10.
The power input end of the air pump 11 is connected with the power output end of the control panel 15, and the air pump 11 controls the motor to work through a pressure switch arranged on the air pump 11, so that the air pressure in the tank body of the air pump 11 is kept in a stable state, and the air pump 11 is controlled to be started or closed through the control panel 15.
The power input end of the control panel 15 is connected with the power socket 17, the bottom of the control panel 15 is also provided with a singlechip, the control power output end of the singlechip is connected with the power input end of the five-way electromagnetic valve 10, the singlechip controls the corresponding action of the five-way electromagnetic valve 10 according to a control signal, under the action of the control panel 15, after the singlechip controls the second electromagnetic coil on the five-way electromagnetic valve 10 to work electrically, under the action of the internal parts of the five-way electromagnetic valve 10, the exhaust pipe at the lower end of the five-way electromagnetic valve 10 outputs compressed air input by the air pump 11 into the lower part in the cylinder barrel of the air cylinder 9, the piston rod 91 of the air cylinder 9 drives the first clamping plate 92 to shrink inwards, the first clamping plate 92 drives the second piston handle 42 to push backwards, the distance between the air and the second injector 4 is increased, and the air at the upper part of the piston rod 91 of the air cylinder 9 is discharged into the air through the exhaust pipe at the upper end of the five-way electromagnetic valve 10, so that the air in the first injector 3 is pumped into the second injector 4, and the formed contrast agent microbubbles; under the action of the control panel 15, after the first electromagnetic coil on the five-way electromagnetic valve 10 is controlled by the singlechip to work, under the action of the internal components of the five-way electromagnetic valve 10, compressed air input by the air pump 11 is output into the upper part in the cylinder barrel of the air cylinder 9 by the upper end exhaust pipe of the five-way electromagnetic valve 10, the piston rod 91 of the air cylinder 9 drives the first clamping plate 92 to push out, the first clamping plate 92 drives the second piston handle 42 to push forward, the distance between the second clamping plate and the second injector 4 is shortened, air at the lower part of the piston rod 91 of the air cylinder 9 is discharged into the air through the lower end exhaust pipe of the five-way electromagnetic valve 10, so that contrast agent in the second injector 4 and air in the first injector 3 are mixed to form contrast agent microbubbles or contrast agent microbubbles formed in the subsequent second injector 4 are injected into the vein end of a patient.
When the device is used, 1ml of air and 8ml of contrast agent are respectively loaded in the first injector 3 and the second injector 4, a key for controlling the frequency, the times and the speed of the extension and contraction of the piston rod 91 of the air cylinder 9 is arranged on the control panel 15, before the device is started, the rotary switch 7 is manually screwed, a loop is formed between the first injector 3 and the second injector 4, the control panel 15 presses the start buttons of the air pump 11 and the five-way electromagnetic valve 10, the first clamping plate 92 connected with the piston rod 91 drives the second piston handle 42 to extend and contract for 20 times, the air in the first injector 3 and the contrast agent in the second injector 4 are fully dissolved and form contrast agent microbubbles, and finally all the contrast agent microbubbles are transferred into the second injector 4, the rotary switch 7 is manually screwed, the loop is formed between the second injector 4 and the third interface 63, the third interface 63 is connected with the intravenous injection end of a patient through the infusion tube and the infusion needle, finally the air pump 11 is slowly generated through the control of the single-chip microcomputer, the piston rod 91 of the air cylinder 9 is slowly ejected again, the contrast agent in the second injector 4 is slowly and then the contrast agent microbubbles in the patient is slowly checked after the contrast agent microbubbles are slowly checked, and the contrast agent microbubbles in the patient after the injection of the microbubbles are slowly checked, and the contrast agent microbubbles in the patient are conveniently injected into the patient after the micro-bubbles are injected into the patient.
In particular, the single-cylinder double-tube radiography device is internally provided with a storage battery 12, wherein a power input end of the storage battery 12 is connected with the power socket 17, a power output end of the storage battery 12 is connected with a power input end of the control panel 15, and when the piston rod 91 extends, the return spring 131 is in a contracted state, and when the piston rod 91 contracts, the return spring 131 is in an expanded and restored state.
To sum up, this two radiography devices of single cylinder, through the structural connection between cylinder, reset spring, medical three way connection, then drive the second piston handle of second syringe through the piston rod of cylinder and stretch out and draw back, and then avoided manual control radiography syringe often to have the unstable problem of gripping, and simultaneously through simple structure and convenient operation, and then replace the high sound appearance that shakes of instrument price, medical cost is high, automatic with contrast agent and air combination formation size even and stable contrast agent microbubble, optimize the inspection flow, improve inspection efficiency and the accuracy of inspection, the problem that uses sound appearance to carry out sound to contrast agent through the ultrasonic wave and shake and handle and form the contrast microbubble, lead to medical cost high is solved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a two radiography devices of single cylinder, includes base (1), fixing base (2), first syringe (3), second syringe (4), activity screens (5), medical three way connection (6), cylinder (9), five solenoid valve (10), air pump (11), shell (14), control panel (15), its characterized in that: the utility model discloses a magnetic valve, including base (1), right flank, fixed seat (2) top is equipped with circular arc recess (24), circular arc recess (24) top is equipped with draw-in hole (25), circular arc recess (24) outside is equipped with shrinkage pool (21), shrinkage pool (21) bottom is equipped with clamping axle (22), spring (23) are inlayed in the cover in clamping axle (22) outside, movable screens (5) are being connected on spring (23) top, first syringe (3), second syringe (4) are inlayed respectively in circular arc recess (24) of base (1) front and right flank, first syringe (3) and first piston handle (32) of second syringe (4), second piston handle (42) are inlayed respectively in second draw-in groove (133) and first draw-in groove (93), first draw-in groove (93) and second draw-in groove (133) set up respectively in first cardboard (92) and second cardboard (132), first cardboard (92) and second cardboard (132) are connected (91) another flank respectively in base (1) front and right flank, first syringe (3) and second syringe (132) are inlayed respectively in first piston handle (32) of first syringe (4), the other end (42) are inlayed respectively in second draw-in groove (133) and first draw-in groove (93), the other end (13) is equipped with magnetic valve (13), the air pump (11) is arranged on the left side of the five-way electromagnetic valve (10), the storage battery (12) is arranged on the left side of the air pump (11), the shell (14) is sleeved outside the upper side of the base (1), the top of the shell (14) is provided with a control panel (15), the injection ends of the first injector (3) and the second injector (4) are respectively provided with threads, the injection ends of the first injector (3) and the second injector (4) are respectively connected with a first interface (61) and a second interface (62) of the medical three-way joint (6), the medical three-way joint (6) can be adjusted to form two paths through the rotary switch (7), and the first one is that: the first interface (61) and the second interface (62) are opened, and the third interface (63) is closed; the second is: the first interface (61) is closed, and the second interface (62) and the third interface (63) are opened.
2. The single cylinder dual tube contrast device of claim 1, wherein: the bottom of the spring (23) is connected with the clamping shaft (22), and the spring (23) can rotate ninety degrees around the clamping shaft (22).
3. The single cylinder dual tube contrast device of claim 1, wherein: the top of the movable clamping position (5) is arc-shaped, and the diameter of the arc is equal to that of the first injector (3) and the second injector (4).
4. The single cylinder dual tube contrast device of claim 1, wherein: the first limiting block (31) and the second limiting block (41) at the tops of the first injector (3) and the second injector (4) are respectively embedded in the clamping holes (25) on the front face and the right side face of the base (1) in an interference fit mode.
5. The single cylinder dual tube contrast device of claim 1, wherein: the front and right sides of the shell (14) are respectively provided with a through groove (141), one end of each through groove (141) is provided with a through hole (142), and the rear side of the shell (14) is provided with a vent hole (16) and a power socket (17).
6. The single cylinder dual tube contrast device of claim 1, wherein: the air pump (11) is connected with the air inlet end of the five-way electromagnetic valve (10), and the air outlet end of the five-way electromagnetic valve (10) is connected with the air inlet end of the air cylinder (9).
7. The single cylinder dual tube contrast device of claim 1, wherein: the power input end of the air pump (11) is connected with the power output end of the control panel (15), and the air pump (11) controls the motor to work through a pressure switch arranged on the air pump, so that the air pressure in the tank body of the air pump (11) is kept in a stable state.
8. The single cylinder dual tube contrast device of claim 1, wherein: the control panel (15) power input end is connected with the power socket (17), the bottom of the control panel (15) is also provided with a singlechip, the singlechip controls the power output end to be connected with the power input end of the five-way electromagnetic valve (10), and the singlechip controls the corresponding action of the five-way electromagnetic valve (10) according to the control signal.
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| CN201711348630.8A CN107929870B (en) | 2017-12-15 | 2017-12-15 | Single-cylinder double-tube radiography device |
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| CN201711348630.8A CN107929870B (en) | 2017-12-15 | 2017-12-15 | Single-cylinder double-tube radiography device |
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| CN107929870A CN107929870A (en) | 2018-04-20 |
| CN107929870B true CN107929870B (en) | 2023-09-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108744113B (en) * | 2018-06-21 | 2024-04-02 | 广东省人民医院(广东省医学科学院) | Automatic synthetic contrast agent and injection device |
| CN108853635B (en) * | 2018-08-07 | 2024-04-02 | 广东省人民医院(广东省医学科学院) | Automatic radiography injection device |
| CN110279432B (en) * | 2019-07-26 | 2021-09-07 | 河南科技大学第一附属医院 | Preparation of microbubble contrast medium and injection device for TCD inspection |
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