CN108744114B - Pressure-triggered automatic contrast device - Google Patents
Pressure-triggered automatic contrast device Download PDFInfo
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- CN108744114B CN108744114B CN201810646639.5A CN201810646639A CN108744114B CN 108744114 B CN108744114 B CN 108744114B CN 201810646639 A CN201810646639 A CN 201810646639A CN 108744114 B CN108744114 B CN 108744114B
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- 230000001960 triggered effect Effects 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 131
- 238000002347 injection Methods 0.000 claims abstract description 131
- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 238000007664 blowing Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000001802 infusion Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 4
- 239000002872 contrast media Substances 0.000 description 14
- 239000002504 physiological saline solution Substances 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 238000002601 radiography Methods 0.000 description 3
- 208000008883 Patent Foramen Ovale Diseases 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 208000019089 Pulmonary arteriovenous fistula Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009611 phonocardiography Methods 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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
- 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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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a pressure-triggered automatic contrast device, which is provided with a medical tee joint, a first injector, a second injector, an infusion needle tube, a first automatic injection mechanism, a second automatic injection mechanism, an air blowing detection device and a control device, wherein the first injector, the second injector and the infusion needle tube are connected through the medical tee joint, the access mode of the infusion needle tube is regulated, the infusion needle tube is connected with a remaining needle on the hand of a patient, the control device controls the first automatic injection mechanism and the second automatic injection mechanism to drive the first injector and the second injector to mutually inject air and normal saline pumped by the first injector, so that contrast bubbles with uniform size are formed, then a patient performs Valsalva action, air blowing is performed on the air blowing detection device, and after the air pressure detected by the air blowing detection device reaches 40mmHg, the control device is triggered to control the first automatic injection mechanism to drive the first injector to smoothly inject the oscillated contrast bubbles into a human body, so that the automation is realized.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a pressure-triggered automatic radiography device.
Background
At present, conventional echocardiography is widely applied to cardiovascular diagnosis, but has lower sensitivity when a trace right-left shunt is displayed, and related diseases such as patent foramen ovale, pulmonary arteriovenous fistula and the like which are shunted right-left are easily ignored. While right phonocardiography can utilize the following two principles on the basis of conventional echocardiography by means of an oscillating physiological saline injected in the peripheral venous system of the patient: 1) The contrast agent bubbles are > 10 microns, average about 15 microns, cannot pass through the pulmonary capillary network, and cannot enter the left heart system; 2) The microbubbles have a significant acoustic impedance difference from blood and are clearly visible even in individual microbubbles (low velocity micro blood flow). Providing more detailed right-left shunt information is of great diagnostic value, particularly in the diagnosis of endocardial structures (where patent foramen ovale predominates) and abnormal shunt in the lungs.
When the right heart sound radiography is performed, a patient firstly cooperates with Valsalva to perform operation, namely, the patient firstly blows the blowing detection device, when the blowing pressure is 40mmHg, then the contrast agent is injected through peripheral veins, the contrast agent commonly used at present is oscillation physiological saline microbubbles, two injectors are connected through a medical tee joint, one of the injectors is loaded with 9ml of physiological saline, the other injector is loaded with 1ml of air, medical staff manually pushes the two injectors alternately, and the physiological saline is oscillated into milky-white contrast agent microbubbles, and the method has the advantages of high bubble speed, dense bubbles, economy, safety, no obvious side effect and the like. However, there are a number of disadvantages to this operation: 1) The alternate pushing of the injector is blocked greatly, so that the fatigue of hands of medical staff is easily caused, and especially when the injection is carried out for a plurality of times or the patient is in a large quantity, the formation of contrast agent microbubbles is not up to standard, and the judgment of a diagnosis conclusion is influenced; 2) Different medical staff have different operation methods, particularly female medical staff have small hand force and gas, are easy to fatigue, are unstable to hold the injector, and are easy to fall off the injector or form contrast agent microbubbles to be substandard; 3) Due to the difference of the proficiency of operators, the injection speed is different, and the standardized and stable operation cannot be realized; 4) During the peak period of medical treatment, because medical staff is short, the acoustic contrast operation is tedious, the detection efficiency is seriously affected, and the time of medical treatment of patients is delayed.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a pressure-triggered automatic contrast device which can automatically combine physiological saline with air oscillation to form uniform contrast agent microbubbles and inject the contrast agent microbubbles into a human body through pressure triggering, thereby improving the automation and stability of ultrasonic contrast and realizing the standardization of contrast bubbles.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the pressure-triggered automatic radiography device is characterized by comprising a base body, a first injector, a second injector, a medical tee joint, an infusion needle tube, an automatic pushing injection mechanism, an air blowing detection device, a control device, a shell, a starting switch and a display; the base body is provided with a first boss seat and a second boss seat, the first boss seat is provided with a first arc groove and a first clamping groove, and the second boss seat is provided with a second arc groove and a second clamping groove; the first injector comprises a first injection cylinder and a first piston handle, wherein the cylinder body of the first injection cylinder is clamped into the first circular arc groove, and the cylinder edge is clamped into the first clamping groove; the second injector comprises a second injection cylinder and a second piston handle, wherein the cylinder body of the second injection cylinder is clamped into the second circular arc groove, and the cylinder edge is clamped into the second clamping groove, wherein the injection heads of the first injection cylinder and the second injection cylinder are vertically opposite; the medical tee joint comprises a first interface, a second interface and a third interface, wherein the first interface is in threaded connection with the injection head of the first injector, and the second interface is in threaded connection with the injection head of the second injector; the infusion needle tube is in threaded connection with the third interface; the automatic injection mechanism comprises a first automatic injection mechanism and a second automatic injection mechanism, wherein the first automatic injection mechanism is in driving connection with the first piston handle so as to drive the first automatic injection mechanism to slide along the axial direction of the first injection cylinder, and the second automatic injection mechanism is in driving connection with the second piston handle so as to drive the second automatic injection mechanism to slide along the axial direction of the second injection cylinder; the blowing detection device comprises a blowing nozzle, a blowing pipe, an air pressure sensor and a sensor fixing seat, wherein the blowing nozzle is connected with the air pressure sensor through the blowing pipe, and the air pressure sensor is fixed on the seat body through the sensor fixing seat; the control device is fixed on the seat body; the shell is connected with the seat body in a sleeved mode, a clearance through groove which enables the first boss seat and the second boss seat to be exposed is formed, the starting switch and the display are fixed on the shell, and the starting switch and the display are electrically connected with the signal output end of the control device; the signal input ends of the first automatic injection mechanism and the second automatic injection mechanism are electrically connected with the signal output end of the control device, and the signal output end of the air pressure sensor is electrically connected with the signal input end of the control device.
Preferably, the automatic contrast injection device further comprises a three-way drive mechanism comprising: the driving motor and the tee joint driving block are arranged in the base body in an embedded mode and are fixedly connected with the base body; the tee joint driving block comprises a driving part and a connecting part connected to the lower side of the driving part, the driving part is provided with a cross clamping groove matched with a knob of a medical tee joint, the cross clamping groove is provided with four notches, three notches are open grooves, one notch is a sealing groove, and the connecting part is fixedly connected with an output shaft of a driving motor; the shell is also provided with a clearance through groove for exposing the tee driving block; the signal input end of the driving motor is electrically connected with the signal output end of the control device.
Preferably, the first automatic injection mechanism comprises a first power source and a first injection block, wherein the first power source is fixed on the base, one end of the first injection block is in driving connection with the first power source, the other end of the first injection block is provided with a first clamping handle groove, and the first piston handle is clamped in the first clamping handle groove; the second automatic injection mechanism comprises a second power source and a second injection block, the second power source is fixed on the base, one end of the second injection block is in driving connection with the second power source, a second clamping handle groove is formed in the other end of the second injection block, and the second piston handle is clamped in the second clamping handle groove.
Preferably, the first power source and the second power source are linear motor guide rail sliding tables, and the sliding blocks of the linear motor guide rail sliding tables are fixedly connected with the first pushing block and/or the second pushing block.
Preferably, the first boss seat is provided with a locking mechanism, the locking mechanism comprises two locking sliding grooves, two locking sliding blocks, two compression springs and two locking upper covers, the two locking sliding grooves are arranged on the first boss seat and are symmetrical relative to the first circular arc groove, one end of each locking sliding groove is provided with an opening, and the opening is communicated with the first circular arc groove; the two locking sliding blocks are symmetrically arranged on the two locking sliding grooves, each locking sliding block comprises a locking part and a sliding block part, each sliding block part is in a right trapezoid block shape, each locking part is in an obtuse triangle block shape, the inclined sides of each sliding block part are connected with the acute sides of each locking part, each sliding block part can slide in each locking groove, each locking part can extend out of a first arc groove, and each locking part extends out of each first sliding groove; the two compression springs are respectively arranged between the end face, far away from the opening, of the locking chute and the end face, far away from the locking part, of the locking slide block; the two locking upper covers are connected with the first boss seat and cover the two locking sliding grooves respectively.
Preferably, one of the locking slide blocks is provided with a locking rod, the locking rod is rotationally connected with the locking slide block, the corresponding locking upper cover is provided with a locking rod groove matched with the locking rod, and when the locking part locks the first injection cylinder, the locking rod can be lapped in the locking rod groove.
Preferably, the second boss seat is provided with the same locking mechanism.
Preferably, the first boss seat is provided with a first notch, and the first notch cuts off the first circular arc groove and is arranged between the first clamping groove and the locking device; the second boss seat is provided with a second notch, and the second notch cuts off the second circular arc groove and is arranged between the second clamping groove and the locking device.
Preferably, a hook is arranged on one end face of the seat body, which is close to the blowing detection device.
(III) beneficial effects
Compared with the prior art, the invention provides a pressure-triggered automatic contrast device, which is provided with a medical tee joint, a first injector, a second injector, an infusion needle tube, a first automatic injection mechanism, a second automatic injection mechanism, an air blowing detection device and a control device, wherein the first injector, the second injector and the infusion needle tube are connected through the medical tee joint and the way of adjusting the way is regulated, the infusion needle tube is connected with a remaining needle on a patient's hand, the control device controls the first automatic injection mechanism and the second automatic injection mechanism to drive the first injector and the second injector to mutually inject air and normal saline pumped by the first injector, so that contrast bubbles with uniform size are formed, then a patient performs Valsalva action, the air blowing detection device blows air, after the air blowing detection device detects that the air pressure reaches 40mmHg, the control device is triggered to drive the first injector to smoothly inject the oscillated contrast bubbles into the human body, so that the automation is realized, and the problem that the formation of contrast microbubbles cannot be standardized due to different operation methods of different people or the same person at different time is solved; further, the driving motor drives the knob of the medical tee joint, so that the passage among the first injector, the second injector and the injection tube is regulated, and the automation of the injection tube is further improved; in general, the pressure-triggered automatic device can automatically combine normal saline with air oscillation to form uniform contrast agent microbubbles and inject the contrast agent microbubbles into a human body through pressure triggering, thereby improving the automation and stability of ultrasonic contrast and realizing the standardization of contrast bubbles.
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 shows a schematic overall structure of an embodiment of the present invention;
FIG. 2 shows a schematic internal structure of FIG. 1;
FIG. 3 shows a schematic view of the seat structure of FIG. 1;
fig. 4 shows a schematic diagram of the linear motor guide rail sliding table structure in fig. 1;
FIG. 5 shows a schematic diagram of the first bolus block of FIG. 1;
FIG. 6 shows a schematic diagram of the second bolus block of FIG. 1;
FIG. 7 shows a schematic view of the interior of the locking mechanism of FIG. 1;
FIG. 8 shows a cross-sectional view A-A of FIG. 7;
FIG. 9 is a schematic view showing the connection of the locking cap to the locking lever of FIG. 1;
FIG. 10 is a schematic diagram of the three-way drive mechanism of FIG. 1;
FIG. 11 shows an exploded view of the assembly of the three-way drive block and drive motor of FIG. 10 for use in a traditional Chinese medicine;
fig. 12 shows a system schematic of an embodiment of the invention.
In the figure: 1 seat, 3 medical tee, 4 infusion needle tube, 6 air blowing detection device, 7 control device, 8 tee driving mechanism, 9 locking mechanism, 15 outer shell, 16 start switch, 17 couple, 18 display, 10 first boss, 11 second boss, 20 first syringe, 21 second syringe, 30 first interface, 31 second interface, 32 third interface, 50 first automatic injection mechanism, 51 second automatic injection mechanism, 60 air blowing nozzle, 61 air blowing tube, 62 air pressure sensor, 63 sensor fixing seat, 80 driving motor, 81 tee driving block, 91 locking slide block, 92 compression spring, 93 locking upper cover, 94 lock rod, 95 guide space, 96 locking space, 100 first circular arc groove, 101 first clamping groove, 102 locking slide groove, 102a opening, 103 first notch, 110 second circular arc groove, 111 second clamping groove, 113 second notch, 200 first injection cylinder, 201 first piston handle, 210 second injection cylinder, 211 second piston handle, first power source, 501 first injection block, 501a first clamping block, 501a second clamping block, 511, 510 a second injection cylinder, 810, and 810 driving clamp block, 810 and 810.
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 fig. 1, fig. 2, fig. 3, fig. 10 and fig. 11, the embodiment provides a pressure-triggered automatic contrast device, which is characterized by comprising a base 1, a first injector 20 (10 ml specification is preferred in the embodiment), a second injector 21 (10 ml specification is preferred in the embodiment), a medical tee 3, an infusion needle tube 4, an automatic injection mechanism, an air blowing detection device 6, a control device 7 (singlechip is preferred in the embodiment), a shell 15, a start switch 16 (FT 16QB-F11Z/EV is preferred in the embodiment), and a display 18 (LG/LC 320240 is preferred in the embodiment); the base body 1 is provided with a first boss seat 10 and a second boss seat 11, the first boss seat 10 is provided with a first arc groove 100 and a first clamping groove 101, and the second boss seat 11 is provided with a second arc groove 110 and a second clamping groove 111; the first injector 20 comprises a first injection cylinder 200 and a first piston handle 201, wherein the cylinder body of the first injection cylinder 200 is clamped into the first circular arc groove 100, and the cylinder edge is clamped into the first clamping groove 101; the second injector 21 comprises a second syringe 210 and a second piston handle 211, wherein the barrel of the second syringe 210 is clamped into the second circular arc groove 110, and the barrel edge is clamped into the second clamping groove 111, wherein the injection heads of the first syringe 200 and the second syringe 210 are vertically opposite; the medical tee 3 comprises a first interface 30, a second interface 31 and a third interface 32, wherein the first interface 30 is in threaded connection with the injection head of the first injector 20, and the second interface 31 is in threaded connection with the injection head of the second injector 21; the infusion needle tube 4 is in threaded connection with the third interface 32; the automatic injection mechanism comprises a first automatic injection mechanism 50 and a second automatic injection mechanism 51, wherein the first automatic injection mechanism 50 is in driving connection with a first piston handle 201 to drive the first automatic injection mechanism to slide along the axial direction of a first injection cylinder 200, and the second automatic injection mechanism 51 is in driving connection with a second piston handle 211 to drive the second automatic injection mechanism to slide along the axial direction of a second injection cylinder 210; the blowing detection device 6 comprises a blowing nozzle 60, a blowing pipe 61, an air pressure sensor 62 and a sensor fixing seat 63, wherein the blowing nozzle 60 is connected with the air pressure sensor 62 through the blowing pipe 61, and the air pressure sensor 62 is fixed on the seat body 1 through the sensor fixing seat 63; the control device 7 is fixed on the seat body 1; the shell 15 is connected with the seat body 1 in a sleeved mode, a clearance through groove for exposing the first boss seat 10 and the second boss seat 11 is formed, the starting switch 16 and the display 18 are fixed on the shell 15, and the starting switch 16 and the display 18 are electrically connected with a signal output end of the control device 7; the signal input ends of the first automatic injection mechanism 50 and the second automatic injection mechanism 51 are electrically connected with the signal output end of the control device 7, and the signal output end of the air pressure sensor 62 is electrically connected with the signal input end of the control device 7.
By rotating the knob of the medical tee 3, the following two channel modes can be formed among the first injector 20, the second injector 21 and the infusion needle tube 4, wherein the first channel mode is that a channel is formed by the first interface 30 and the second interface 31, the third interface 32 is closed, so that the first injector 20 and the second injector 21 form a channel, and the infusion needle tube 4 is closed; the second way is that the second interface 31 is closed, the first interface 30 and the third interface 32 form a channel, so that the first injector 20 and the infusion needle tube 4 form a channel, and the second injector 21 is closed; when the syringe is used, 9ml of physiological saline is pre-pumped into the first syringe 20, 1ml of air is pre-pumped into the second syringe 21, the infusion needle tube 4 is connected with an intravenous needle interface on a patient's hand, the knob of the medical tee 3 is rotated to be in a first passage way, the start switch 16 is opened, the control device 7 controls the first automatic injection mechanism 50 and the second automatic injection mechanism 51 to respectively drive the first piston handle 201 and the second piston handle 211 to be alternately pushed to form oscillation so as to mix the physiological saline with the air, namely, the first automatic injection mechanism 50 drives the first piston handle 201 to be stopped after being pushed outwards by 9ml of travel, the second automatic injection mechanism 51 drives the second piston handle 211 to be stopped after being pushed outwards by 9ml of travel, the first automatic injection mechanism 50 drives the first piston handle 21 to be stopped after being pushed outwards by 9ml of travel so as to enable the first syringe 20 to be pushed outwards, the second syringe 21 is pumped inwards by the second syringe 21 to be pushed inwards by 9ml of travel, the first syringe 20 is pumped outwards by the first syringe 21, the frequency is pumped inwards by the first syringe 20 to be fully stopped after the first syringe 20 ml of travel, and the first syringe 20 is completely pumped inwards by the first syringe 20 to be completely pumped into the first syringe 20, and then the first syringe 20 is completely pumped into the syringe 20 is completely suspended; then the medical staff rotates the knob of the medical tee 3 to make it be the second way, then the patient starts to carry on Valsalva action, blow into the trachea 61 through the air cock 60, the air pressure sensor 62 can detect the air pressure in the trachea 61 in real time, when the air pressure reaches 40mmHg, trigger the control device 7 to control the first automatic injection mechanism 50 to drive the first piston handle 201 to push out 9ml of strokes outwards at a speed conforming to the infusion of the human body, thus the mixed contrast bubbles are injected into the human body, while injecting, the patient keeps blowing, observe the air pressure through the display 18 and keep it above about 40mmHg for 3 seconds; the pushing speed is preset in the program of the control device 7 and can be set according to clinical experience; in summary, the control device 7 controls the first automatic injection mechanism 50 and the second automatic injection mechanism 51 to drive the first piston handle 201 and the second piston handle 211 to move, so that the physiological saline in the first injector 20 and the air in the second injector 21 are fully mixed to form contrast bubbles and injected into the first injector 20, a patient blows air into the air blowing pipe 61 through the air blowing nozzle 60, when the air pressure sensor 62 detects that the air pressure reaches 40mmHg, the trigger control device 7 controls the first automatic injection mechanism 50 to drive the first injector 20 to move so as to inject the oscillated contrast bubbles into a human body, the pressure trigger automatic contrast device is realized to automatically combine the physiological saline with the air oscillation to form contrast agent microbubbles with uniform size, the contrast agent microbubbles are injected into the human body through pressure trigger, the automation and the stability of ultrasonic contrast are improved, and the standardization of the contrast bubbles is realized.
To further enhance automation, referring to fig. 2, 10, 11 and 12, the automatic contrast injection device further comprises a three-way drive mechanism 8, the three-way drive mechanism 8 comprising: a driving motor 80 (preferably a stepping motor in the embodiment) and a three-way driving block 81, wherein the driving motor 80 is embedded in the seat body 1 and is fixedly connected with the seat body 1; the tee joint driving block 81 comprises a driving part 810 and a connecting part 811 connected to the lower side of the driving part 810, wherein the driving part 810 is provided with a cross clamping groove 812 matched with a knob of the medical tee joint 3, the cross clamping groove 812 is provided with four notches, three notches are open grooves, one notch is a sealing groove, and the connecting part 811 is fixedly connected with an output shaft of the driving motor 80; the shell 15 is also provided with a clearance through groove for exposing the three-way driving block 81; the signal input end of the driving motor 80 is electrically connected with the signal output end of the control device 7. When in use, after the medical tee 3 is connected with the first injector 20 and the second injector 21, the knob is screwed to a third access mode, namely the first interface 40, the second interface 41 and the third interface 42 are all communicated, then the first injector 20 and the second injector 21 are respectively clamped into the corresponding positions of the first boss seat 10 and the second boss seat 11, the knob of the medical tee 3 is clamped into the cross groove 812, as one notch of the cross groove 812 is a sealing groove, the tee driving block 81 is manually rotated, the sealing groove of the cross groove 812 is matched and clamped with one notch arm of the knob, so that the positioning of the knob and the cross groove 812 is realized, after the starting switch 16 is opened, the control device 7 controls the driving motor 80 to rotate anticlockwise by 90 degrees and then pause, the medical tee 3 is in the first access mode, then the control device 7 controls the first automatic injection mechanism 50 and the second automatic injection mechanism 51 to respectively drive the first piston handle 201 and the second piston handle 211 to be pushed in a staggered way to form oscillation so as to mix physiological saline and air, the working principle is consistent with that described in the upper section, details are not repeated here, then a patient starts to perform Valsalva action, air is blown into the air pipe 61 through the air tap 60, the air pressure sensor 62 can detect the air pressure in the air pipe 61 in real time, when the air pressure reaches 40mmHg, the trigger control device 7 controls the driving motor 80 to continuously rotate the knob of the medical tee 3 anticlockwise for 90 degrees and then to pause, then the control device 7 controls the first automatic injection mechanism 50 to drive the first injector 20 to inject the oscillated contrast air bubbles into a human body, and then the control device 7 controls the driving motor 80 to rotate the knob of the medical tee 3 clockwise for 180 degrees so as to reset; while injecting, the patient continues to hold the insufflation, and the air pressure is observed through the display and maintained at about 40mmHg for more than 3 seconds.
Further, referring to fig. 2, fig. 4, fig. 5, and fig. 6, the first automatic injection mechanism 50 includes a first power source 500 and a first injection block 501, where the first power source 500 is fixed on the base 1, one end of the first injection block 501 is in driving connection with the first power source 500, and the other end is provided with a first clamping handle groove 501a, and the first piston handle 201 is clamped in the first clamping handle groove 501 a; the second automatic injection mechanism 51 comprises a second power source 510 and a second injection block 511, wherein the second power source 510 is fixed on the base 1, one end of the second injection block 511 is in driving connection with the second power source 510, the other end of the second injection block 511 is provided with a second clamping handle groove 511a, and the second piston handle 211 is clamped in the second clamping handle groove 511 a; in this embodiment, the first power source 500 and the second power source 510 are linear motor guide rail sliding tables, the sliding blocks of which are fixedly connected with the first push injection block 501 and/or the second push injection block 511, and the motor of the linear motor guide rail sliding table drives the screw rod of the linear motor guide rail sliding table to rotate, so that the sliding blocks of the linear motor guide rail sliding table can linearly move, thereby driving the first push injection block 501 and/or the second push injection block 511 to linearly move, further driving the first piston handle 201 and/or the second piston handle 211 to linearly move for pushing or drawing liquid, the linear motor guide rail sliding table is stable in operation, high in integration level, and simplifying the structure of the pressure-triggered automatic contrast device.
Further, referring to fig. 2, fig. 3, fig. 7, fig. 8 and fig. 9, a locking mechanism 9 is provided on the first boss seat 10, the locking mechanism 9 includes a locking chute 102, a locking slider 91, a compression spring 92 and a locking upper cover 93, the total number of the locking chute 102 is two, the locking chute 102 is provided on the first boss seat 10 and is symmetrical with respect to the first circular arc slot 100, an opening 102a is provided at one end of the locking chute 102, and the opening 102a is communicated with the first circular arc slot 100; the two locking sliding blocks 91 are symmetrically arranged on the two locking sliding grooves 102, the locking sliding blocks 91 comprise locking parts 910 and sliding block parts 911, the sliding block parts 911 are right trapezoid blocks, the locking parts 910 are obtuse triangle blocks, the oblique sides of the sliding block parts 911 are connected with the acute angle sides of the locking parts 910, in the embodiment, the locking parts 910 and the sliding block parts 911 are integrally formed, the sliding block parts 911 can slide in the locking grooves 102, the locking parts 911 can extend out of the first arc grooves 100, the two locking parts 911 relatively extend out of the first sliding grooves 100, so that a guide space 95 is formed at the upper sides of the two locking parts 911, and a locking space 96 is formed at the lower sides of the two locking parts 911; the two compression springs 92 are respectively arranged between the end face of the locking chute 102, which is far away from the opening, and the end face of the locking slide block 91, which is far away from the locking part 910; the number of the locking upper covers 93 is two, and the two locking upper covers are connected with the first boss seat 10 and respectively cover the two locking sliding grooves 102; in use, when the first injection cylinder 200 is clamped into the circular arc groove 100, the cylinder body of the first injection cylinder 200 is in extrusion contact with the inclined plane of the guide space 95, due to the guide effect of the inclined plane, the two locking slide blocks 91 slide into the locking slide grooves 102 respectively, the compression spring 92 is compressed, when the cylinder body of the first injection cylinder 200 passes through the guide space 95 and then enters the locking space 96, the rebound force of the compression spring 92 urges the locking slide blocks 91 to reset, so that the cylinder bodies of the first injection cylinder 200 are mutually extruded to form locking force; when the first syringe 200 needs to be taken out, the first syringe 200 is pulled outwards, and the inclined surfaces of the first syringe 200 and the locking space 96 are mutually extruded, so that the two locking slide blocks 91 slide into the locking slide grooves 102 respectively, thereby releasing the locking and facilitating the taking out of the first syringe 200; by providing the locking mechanism 9, the fixation of the first syringe 200 to the first circular arc groove 100 is made more stable.
In order to further enhance the locking effect, referring to fig. 9, one of the locking sliders 91 is provided with a locking rod 94, the locking rod 94 is rotatably connected with the locking slider 91, the corresponding locking upper cover 93 is provided with a locking rod groove 930 matched with the locking rod 94, and when the locking part 911 locks the first syringe 200, the locking rod 94 can be snapped into the locking rod groove 930; when the barrel of the first syringe 200 is locked in the locking space 96, the locking bar 94 is rotated to be locked in the locking bar groove 930 so as to limit the locking slider 91 to slide continuously, the locking effect is further enhanced, and when the first syringe 200 needs to be taken out, the locking bar 94 is rotated to be withdrawn from the locking bar groove 930, and the first syringe 200 is pulled outwards, so that the first syringe 200 is taken out.
Further, referring to fig. 2, the second boss 11 is provided with the same locking mechanism 9; the structure and the working principle are the same as the locking mechanism 9 described above, and will not be described again here.
Further, referring to fig. 3, the first boss 10 is provided with a first notch 103, and the first notch 103 intercepts the first circular arc groove 100 and is disposed between the first clamping groove 101 and the locking device 9; the second boss 11 is provided with a second notch 113, the second notch 113 cuts off the second circular arc groove 110 and is disposed between the second clamping groove 111 and the locking device 9, and the first notch 103 and the second notch 113 provide a holding space to facilitate the removal of the first syringe 200 and the second syringe 210.
Further, referring to fig. 1, a hook 17 is disposed on an end surface of the base 1 near the blowing detection device 6, and after the detection is completed, the blowing pipe 61 is rolled up and hung on the hook 17.
Above, all power consumption components adopt 12V power supply, are connected with external power supply through the power cord, and the motor and the driving motor 80 of linear electric motor guide rail slip table all connect a driver, the signal output part electric connection of driver and controlling means 7, controlling means 7 pass through the motor and the driving motor 80 operation of driver control linear electric motor guide rail slip table, the controller of controlling means 7 is the singlechip preferably.
In summary, the pressure-triggered automatic contrast device is provided with a medical tee joint, a first injector, a second injector, an infusion needle tube, a first automatic injection mechanism, a second automatic injection mechanism, an air blowing detection device and a control device, wherein the first injector, the second injector and the infusion needle tube are connected through the medical tee joint, the way of the way is regulated, the infusion needle tube is connected with a remaining needle on the hand of a patient, the control device controls the first automatic injection mechanism and the second automatic injection mechanism to drive the first injector and the second injector to mutually inject air and physiological saline which are pumped by the first injector, so that contrast bubbles with uniform size are formed, then a patient performs Valsalva action, air blowing is performed on the air blowing detection device, after the air blowing detection device detects that the air pressure reaches 40mmHg, the control device is triggered to control the first automatic injection mechanism to drive the first injector to smoothly inject the oscillated contrast bubbles into the human body, and the automatic contrast bubbles are automatically realized, so that the problem that the formation of contrast bubbles cannot be standardized due to different operation methods of different people or the same person at different times is solved; further, the driving motor drives the knob of the medical tee joint, so that the passage among the first injector, the second injector and the injection tube is regulated, and the automation of the injection tube is further improved; in general, the pressure-triggered automatic device can automatically combine normal saline with air oscillation to form uniform contrast agent microbubbles and inject the contrast agent microbubbles into a human body through pressure triggering, thereby improving the automation and stability of ultrasonic contrast and realizing the standardization of contrast bubbles.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
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 (9)
1. Pressure triggered automated contrast device, comprising:
the novel high-strength steel wire rope connector comprises a seat body (1), wherein a first boss seat (10) and a second boss seat (11) are arranged on the seat body (1), a first arc groove (100) and a first clamping groove (101) are formed in the first boss seat (10), and a second arc groove (110) and a second clamping groove (111) are formed in the second boss seat (11);
the first injector (20) comprises a first injection cylinder (200) and a first piston handle (201), wherein a cylinder body of the first injection cylinder (200) is clamped into the first circular arc groove (100), and a cylinder edge is clamped into the first clamping groove (101);
the second injector (21) comprises a second injection cylinder (210) and a second piston handle (211), wherein the cylinder body of the second injection cylinder (210) is clamped into the second circular arc groove (110), the cylinder edge is clamped into the second clamping groove (111), and the injection heads of the first injection cylinder (200) and the second injection cylinder (210) are vertically opposite;
the medical tee joint (3) comprises a first interface (30), a second interface (31) and a third interface (32), wherein the first interface (30) is in threaded connection with the injection head of the first injector (20), and the second interface (31) is in threaded connection with the injection head of the second injector (21);
the infusion needle tube (4) is in threaded connection with the third interface (32);
the automatic injection mechanism comprises a first automatic injection mechanism (50) and a second automatic injection mechanism (51), wherein the first automatic injection mechanism (50) is in driving connection with a first piston handle (201) so as to drive the first automatic injection mechanism to slide along the axial direction of a first injection cylinder (200), and the second automatic injection mechanism (51) is in driving connection with a second piston handle (211) so as to drive the second automatic injection mechanism to slide along the axial direction of a second injection cylinder (210);
the blowing detection device (6) comprises a blowing nozzle (60), a blowing pipe (61), an air pressure sensor (62) and a sensor fixing seat (63), wherein the blowing nozzle (60) is connected with the air pressure sensor (62) through the blowing pipe (61), and the air pressure sensor (62) is fixed on the seat body (1) through the sensor fixing seat (63);
a control device (7) fixed on the base body (1);
the shell (15) is connected with the base body (1) in a sleeved mode, a clearance through groove which enables the first boss seat (10) and the second boss seat (11) to be exposed is formed in the shell (15), a starting switch (16) and a display (18) are further fixed on the shell (15), and the starting switch (16) and the display (18) are electrically connected with a signal output end of the control device (7);
the signal input ends of the first automatic injection mechanism (50) and the second automatic injection mechanism (51) are electrically connected with the signal output end of the control device (7), and the signal output end of the air pressure sensor (62) is electrically connected with the signal input end of the control device (7).
2. The pressure triggered automated contrast device of claim 1, further comprising a three-way drive mechanism (8), the three-way drive mechanism (8) comprising:
the driving motor (80) is embedded in the seat body (1) and is fixedly connected with the seat body (1);
the tee joint driving block (81) comprises a driving part (810) and a connecting part (811) connected to the lower side of the driving part, wherein the driving part (810) is provided with a cross clamping groove (812) matched with a knob of a medical tee joint (3), the cross clamping groove (812) is provided with four notches, three notches are open grooves, one notch is a sealing groove, and the connecting part (811) is fixedly connected with an output shaft of a driving motor (80);
the shell (15) is also provided with a clearance through groove for exposing the tee driving block (81);
the signal input end of the driving motor (80) is electrically connected with the signal output end of the control device (7).
3. The pressure triggered automated contrast device of claim 1, wherein:
the first automatic injection mechanism (50) comprises a first power source (500) and a first injection block (501), wherein the first power source (500) is fixed on the base body (1), one end of the first injection block (501) is in driving connection with the first power source (500), a first clamping handle groove (501 a) is formed in the other end of the first injection block, and the first piston handle (201) is clamped in the first clamping handle groove (501 a);
the second automatic injection mechanism (51) comprises a second power source (510) and a second injection block (511), the second power source (510) is fixed on the base body (1), one end of the second injection block (511) is in driving connection with the second power source (510), a second clamping handle groove (511 a) is formed in the other end of the second injection block, and the second piston handle (211) is clamped in the second clamping handle groove (511 a).
4. A pressure triggered automated contrast device as claimed in claim 3, wherein: the first power source (500) and the second power source (510) are linear motor guide rail sliding tables, and sliding blocks of the linear motor guide rail sliding tables are fixedly connected with the first pushing block (501) and/or the second pushing block (511).
5. Pressure triggered automatic contrast device according to claim 1, characterized in that the first boss (10) is provided with a locking mechanism (9), the locking mechanism (9) comprising:
the two locking sliding grooves (102) are arranged on the first boss seat (10) and are symmetrical relative to the first circular arc groove (100), one end of each locking sliding groove (102) is provided with an opening (102 a), and the opening (102 a) is communicated with the first circular arc groove (100);
the two locking sliding blocks (91) are symmetrically arranged on the two locking sliding grooves (102), the locking sliding blocks (91) comprise locking parts (910) and sliding block parts (911), the sliding block parts (911) are right trapezoid blocks, the locking parts (910) are obtuse triangle blocks, the hypotenuses of the sliding block parts (911) are connected with the acute angle edges of the locking parts (910), the sliding block parts (911) can move in the locking sliding grooves (102), and the locking parts (911) can extend out of the first arc grooves (100);
two compression springs (92), wherein the compression springs (92) are respectively arranged between the end face of the locking sliding groove (102) far away from the opening and the end face of the locking sliding block (91) far away from the locking part (910);
two locking upper covers (93) are connected with the first boss seat (10) and cover the two locking sliding grooves (102) respectively.
6. The pressure triggered automated contrast device of claim 5, wherein: one of the locking slide blocks (91) is provided with a locking rod (94), the locking rod (94) is rotationally connected with the locking slide block (91), the corresponding locking upper cover (93) is provided with a locking rod groove (930) matched with the locking rod (94), and when the locking part (911) locks the first injection cylinder (200), the locking rod (94) can be lapped in the locking rod groove (930).
7. Pressure triggered automatic contrast device according to claim 6, characterized in that the second boss (11) is provided with the same locking mechanism (9).
8. The pressure triggered automated contrast device of claim 7, wherein: the first boss seat (10) is provided with a first notch (103), and the first notch (103) cuts off the first circular arc groove (100) and is arranged between the first clamping groove (101) and the locking mechanism (9);
the second boss seat (11) is provided with a second notch (113), and the second notch (113) cuts off the second circular arc groove (110) and is arranged between the second clamping groove (111) and the locking mechanism (9).
9. The pressure triggered automated contrast device of claim 1, wherein: a hook (17) is arranged on one end face of the seat body (1) close to the blowing detection device (6).
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| CN201810646639.5A CN108744114B (en) | 2018-06-21 | 2018-06-21 | Pressure-triggered automatic contrast device |
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| CN201810646639.5A CN108744114B (en) | 2018-06-21 | 2018-06-21 | Pressure-triggered automatic contrast device |
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| CN110038188A (en) * | 2019-05-20 | 2019-07-23 | 崔文馨 | Right heart acoustic contrast and frothing test special three-way and mating injector assembly |
| CN111345850A (en) * | 2020-03-10 | 2020-06-30 | 苏州大学附属第一医院 | Method for evaluating induced thoracic negative pressure by right-left shunt |
| CN114272470A (en) * | 2021-11-25 | 2022-04-05 | 上海枫登医疗科技有限公司 | Oval hole screening foaming syringe |
| CN115708693B (en) * | 2022-10-24 | 2024-02-27 | 无忧跳动医疗科技(深圳)有限公司 | Full-automatic foaming device and method |
| CN117398546B (en) * | 2023-12-14 | 2024-02-27 | 无忧跳动医疗科技(深圳)有限公司 | Device and method for automated foaming test |
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| CN204106749U (en) * | 2014-08-28 | 2015-01-21 | 广州军区广州总医院 | For the contrast agent injection detection device of uterus and fallopian tube patency inspection |
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| CN209630325U (en) * | 2018-06-21 | 2019-11-15 | 广东省人民医院(广东省医学科学院) | Pressure activated automates contrast apparatus |
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| JPH06285074A (en) * | 1993-04-07 | 1994-10-11 | Atom Kk | Diagnosing and treating system for women |
| CN204106749U (en) * | 2014-08-28 | 2015-01-21 | 广州军区广州总医院 | For the contrast agent injection detection device of uterus and fallopian tube patency inspection |
| CN107837439A (en) * | 2017-12-15 | 2018-03-27 | 广东省人民医院(广东省医学科学院) | The replaceable injection tube contrast apparatus of integral type |
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