CN115429976A - Self-locking ultrasonic contrast agent injection mechanism and injection method thereof - Google Patents
Self-locking ultrasonic contrast agent injection mechanism and injection method thereof Download PDFInfo
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- CN115429976A CN115429976A CN202211220844.8A CN202211220844A CN115429976A CN 115429976 A CN115429976 A CN 115429976A CN 202211220844 A CN202211220844 A CN 202211220844A CN 115429976 A CN115429976 A CN 115429976A
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- 238000002347 injection Methods 0.000 title claims abstract description 50
- 239000007924 injection Substances 0.000 title claims abstract description 50
- 239000002961 echo contrast media Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002872 contrast media Substances 0.000 claims abstract description 66
- 239000003814 drug Substances 0.000 claims abstract description 60
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims description 28
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 15
- 235000017491 Bambusa tulda Nutrition 0.000 description 15
- 241001330002 Bambuseae Species 0.000 description 15
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 15
- 239000011425 bamboo Substances 0.000 description 15
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229940039231 contrast media Drugs 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 239000011630 iodine Substances 0.000 description 1
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- 230000003902 lesion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- 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
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2066—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically comprising means for injection of two or more media, e.g. by mixing
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
-
- 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
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
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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 discloses a self-locking ultrasonic contrast agent injection mechanism and an injection method thereof, belonging to the field of medical instruments. The self-locking ultrasonic contrast agent injection mechanism comprises a fixed rod, wherein a medicament barrel is arranged above the surface of the fixed rod, a stirring assembly is arranged inside the medicament barrel, the bottom of the medicament barrel is communicated with a liquid discharge pipe, the inner wall of the liquid discharge pipe is in threaded communication with a connecting hose, an arc-shaped groove for supporting the surface of the connecting hose is formed in the upper surface of the fixed rod, and the other end of the connecting hose is communicated with an internal thread connector attached to the end part of the fixed rod; the invention is connected with the self-locking mechanism through the stirring assembly, and aims to ensure that the stirring assembly can rotate through the transmission among the servo motor, the first rotating rod, the first belt pulley, the driving belt and the second belt pulley in the self-locking mechanism, so that the contrast agent filled in the medicament cylinder can be conveniently mixed and stirred, and the injection effect of the self-locking mechanism on the contrast agent in the connecting hose is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a self-locking push mechanism and a push method for an ultrasonic contrast agent.
Background
Contrast agents, also known as contrast agents, are chemicals that are injected or administered into human tissues and organs in order to enhance the image viewing effect. These products generally have densities higher or lower than that of the surrounding tissues, and contrast images are displayed by some instruments, such as iodine preparations and barium sulfate, which are commonly used in X-ray observation, so as to facilitate the development of the lesion site.
To, when above-mentioned contrast medium is injected into the patient in vivo, adopt the medical injector that traditional structure comprises empty section of thick bamboo and piston rod usually, through medical personnel's manual pulling piston rod along the motion of empty section of thick bamboo inner wall, inhale medical personnel's contrast medium of preparing earlier inside the empty section of thick bamboo, then promote the piston rod with the inside contrast medium of inhaling of empty section of thick bamboo inject the patient in vivo through the one end of medical injector connecting needle. However, the contrast agent is too viscous, so that the resistance of the contrast agent sucked in the empty cylinder during injection is large along the inside of the empty cylinder through the piston rod, and therefore, when medical personnel inject the contrast agent in the empty cylinder into a patient, the injection is extremely labor-consuming and time-consuming, and the injection amount of the contrast agent in the empty cylinder is difficult to control accurately.
Therefore, the invention provides a self-locking ultrasonic contrast agent injection mechanism and an injection method thereof to solve the problems.
Disclosure of Invention
The invention aims to solve the problems that a medical injector which is generally formed by a hollow cylinder and a piston rod and adopts a traditional structure is inconvenient to automatically inject a contrast medium and accurately control the injection amount of the contrast medium when the contrast medium is injected into a patient in the prior art, and provides a self-locking injection mechanism and an injection method of an ultrasonic contrast medium.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-locking ultrasonic contrast agent injection mechanism comprises a fixed rod, a medicament barrel is arranged above the surface of the fixed rod, a stirring assembly is arranged inside the medicament barrel, the bottom of the medicament barrel is communicated with a liquid discharge pipe, the inner wall of the liquid discharge pipe is in threaded communication with a connecting hose, an arc-shaped groove for supporting the surface of the connecting hose is arranged on the upper surface of the fixed rod, the other end of the connecting hose is communicated with an internal thread connector attached to the end part of the fixed rod, the surface of the internal thread connector is fixedly connected with two symmetrical first fixed plates, the surface of the first fixed plate is fixedly connected with an insertion block, the surface of the insertion block is provided with a communicated insertion groove, the surface of the fixed rod is provided with a limiting assembly fixedly connected with the insertion groove in a clamping manner, the inner wall of the internal thread connector is in threaded communication with an injection pipe, the surface of the arc-shaped groove is provided with a self-locking mechanism for connecting a hose to convey a contrast medium, the self-locking mechanism comprises a concave mounting rack, the bottom of the concave mounting rack is fixedly connected with the surface of the arc-shaped groove, a servo motor is fixedly mounted on the front surface of the concave mounting rack, the output end of the servo motor is fixedly connected with a first rotating rod, the surface of the first rotating rod is fixedly connected with a mounting sleeve, the surface of the mounting sleeve is connected with three telescopic rods which are arranged in a circumferential array and in an equal distance, the surface of each telescopic rod is sleeved with a first spring, the other end of each telescopic rod is fixedly connected with an extrusion wheel which is extruded and attached to the surface of the connecting hose, one end of the first rotating rod, which is positioned at the back of the concave mounting rack, is fixedly connected with a first belt pulley, the surface of the first belt pulley is connected with a transmission belt which is matched with a second belt which is matched with the inner surface of the transmission belt, the surface of the second belt pulley is connected with the stirring component.
Preferably, spacing subassembly includes No. two fixed plates, the fixed surface of No. two fixed plates is connected with the fixed surface of dead lever, the surface of No. two fixed plates is equipped with the mounting groove No. one with the laminating of grafting piece surface, the inside wall of mounting groove is equipped with the mounting groove No. two, the inner wall sliding connection of No. two mounting grooves has the movable plate, the inside fixedly connected with joint pole of movable plate, the one end of joint pole and the mutual joint of inner wall of inserting groove, the other end of joint pole runs through the outside to No. two fixed plates, and the circular limiting plate of fixedly connected with No. two fixed plate surface laminatings, cup jointed between the inside wall that movable plate and No. two mounting grooves correspond and be located the surperficial No. two springs of joint pole.
Preferably, the inner bottom wall and the inner top wall of the second mounting groove are both provided with moving grooves with the same shape and size, the inner wall of each moving groove is connected with a moving block in a sliding mode, and the surface of each moving block is fixedly connected with the surface of each moving plate.
Preferably, the stirring subassembly includes the dwang No. two, the one end of No. two dwangs and the fixed surface connection of corresponding No. two belt pulleys, the other end of No. two dwangs extends to the inside of medicament section of thick bamboo, the fixed surface of No. two dwangs is connected with the puddler.
Preferably, the surface of the medicament cartridge is fixedly connected with an L-shaped mounting rod, and the other end of the L-shaped mounting rod is fixedly connected with the surface of the fixing rod.
Preferably, the lower surface of the fixed rod is fixedly connected with a handheld handle rod, and the surface of the handheld handle rod is provided with a control switch electrically connected with the servo motor.
Preferably, the top end of the medicament barrel is in threaded connection with a sealing cover, and the surface of the liquid discharge pipe is provided with an electromagnetic valve.
Preferably, the inner wall of the arc-shaped groove is fixedly connected with an elastic clamping seat made of a plastic material, and the inner wall of the elastic clamping seat is clamped with the surface of the connecting hose.
The invention also provides a pushing method of the pushing mechanism of the self-locking ultrasonic contrast agent, which comprises the following steps:
step A, firstly, filling a contrast agent prepared by medical personnel into a medicament barrel, driving a servo motor to drive a first belt pulley, a transmission belt and a second belt pulley which are connected with one end of a first rotating rod positioned on the back surface of a concave mounting rack to mutually transmit while opening an electromagnetic valve arranged on the surface of a liquid discharge pipe, and enabling a stirring assembly to mix and stir the contrast agent filled in the medicament barrel under the rotation of the second belt pulley in a matching way, so that the contrast agent filled in the medicament barrel can more uniformly flow in the connecting hose and can be injected under the closely-contacted movement of an extrusion wheel;
step B, the servo motor can be matched with three telescopic rods which are arranged on the surface mounting sleeve of the first rotating rod and are in a circumferential array and are in equidistant symmetry while driving the first rotating rod, the other ends of the three telescopic rods are connected with corresponding extrusion wheels, the three telescopic rods are tightly attached to the surface of the connecting hose to perform circular linear motion under the action of the telescopic rods and the first spring, and when the three extrusion wheels repeatedly move the surface of the connecting hose, the contrast agent guided into the connecting hose from the inside of the medicament cylinder and conveyed is automatically injected into the internal thread connector and the injection tube, and the contrast agent is injected into the patient;
step C, when the servo motor stops working, the mounting sleeve on the surface of the first rotating rod can ensure that one of the three extrusion wheels is tightly attached to the surface of the connecting hose, so that the connecting hose and the medicament barrel can be isolated and disconnected from each other when the injected contrast medium is conveyed, the injection amount of the contrast medium conveyed inside the connecting hose can be accurately controlled according to the injection condition in a patient body.
Compared with the prior art, the invention provides a self-locking push mechanism of an ultrasonic contrast agent, which has the following beneficial effects:
1. this take supersound contrast medium's of auto-lock mechanism of injecting, through concave type mounting bracket, servo motor, a dwang, the installation cover, the design of telescopic link and a spring and pinch roller, be for the convenience of carrying the contrast medium of carrying between coupling hose and a medicament section of thick bamboo inside and inject automatically, and still can carry the contrast medium of injecting in the coupling hose, can carry out the auto-lock according to the condition that the patient injected the contrast medium, help carrying out accurate control to the injection volume of leading-in contrast medium between a medicament section of thick bamboo and the coupling hose.
2. This take supersound contrast-medium's of auto-lock mechanism of injecting, the stirring subassembly design that constitutes through No. two dwangs and puddler is in the inside of medicament section of thick bamboo, and can be simultaneously along with the servo motor among the self-locking mechanism, a dwang, a belt pulley, drive belt and No. two under the driving rotation between the leather pulley, then be convenient for advance the factory to mix the contrast-medium that the medicament section of thick bamboo was packed into in order to supplementary stirring subassembly, improve homogeneity and the mobility of contrast-medium at the transport.
The device is characterized in that the device is connected with a self-locking mechanism, and is used for ensuring that the stirring assembly can rotate through transmission among a servo motor, a first rotating rod, a first belt pulley, a transmission belt and a second belt pulley in the self-locking mechanism, so that the contrast medium filled in the medicament cylinder can be conveniently mixed and stirred, the injection effect of the self-locking mechanism on the contrast medium in the connecting hose is improved, and meanwhile, any one of three extrusion wheels in the self-locking mechanism is beneficial to automatically injecting the contrast medium led in the connecting hose under the mutual extrusion motion between a corresponding telescopic rod and a first spring and the surface of the connecting hose, and the device can also be self-locked according to the condition that the contrast medium is injected into a patient, and realize the accurate control of the injection amount of the contrast medium led in the medicament cylinder and the connecting hose.
Drawings
Fig. 1 is a schematic overall structure diagram of a bolus mechanism of an ultrasonic contrast medium with self-locking according to the present invention;
FIG. 2 is a side view of a bolus mechanism of an ultrasound contrast agent with self-locking according to the present invention;
fig. 3 is an exploded view of the connection between the internal thread connector and the fixing rod of the push injection mechanism for the self-locking ultrasonic contrast agent provided by the invention;
FIG. 4 is a sectional view of a medicament cartridge with a self-locking ultrasonic contrast agent injection mechanism according to the present invention;
FIG. 5 is a schematic structural diagram of a limiting assembly of a self-locking ultrasound contrast agent injection mechanism according to the present invention;
fig. 6 is a schematic structural diagram of a self-locking mechanism of a bolus mechanism of an ultrasound contrast agent with self-locking according to the present invention.
In the figure: 1. a fixing rod; 2. a medicament cartridge; 3. a stirring assembly; 301. a second rotating rod; 302. a stirring rod; 4. a liquid discharge pipe; 5. a connecting hose; 6. an arc-shaped slot; 7. an internal thread connector; 8. a first fixing plate; 9. an insertion block; 10. inserting grooves; 11. a limiting component; 1101. a second fixing plate; 1102. a first mounting groove; 1103. mounting grooves II; 1104. moving the plate; 1105. a clamping and connecting rod; 1106. a circular limiting plate; 1107. a second spring; 1108. a moving groove; 1109. a moving block; 12. an injection tube; 13. a self-locking mechanism; 1301. a concave mounting rack; 1302. a servo motor; 1303. a first rotating rod; 1304. installing a sleeve; 1305. a telescopic rod; 1306. a first spring; 1307. an extrusion wheel; 1308. a first belt pulley; 1309. a transmission belt; 1310. a second belt pulley; 14. an L-shaped mounting bar; 15. a handle bar is held by hand; 16. a control switch; 17. a sealing cover; 18. an elastic clamping seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Example 1:
referring to fig. 1-6, a self-locking ultrasonic contrast agent injection mechanism comprises a fixing rod 1, a medicament cartridge 2 is arranged above the surface of the fixing rod 1, a stirring assembly 3 is arranged inside the medicament cartridge 2, a liquid discharge tube 4 is communicated with the bottom of the medicament cartridge 2, an electromagnetic valve is arranged on the surface of the liquid discharge tube 4, a connecting hose 5 is communicated with the inner wall of the liquid discharge tube 4 through threads, an arc-shaped groove 6 for supporting the surface of the connecting hose 5 is arranged on the upper surface of the fixing rod 1, an elastic clamping seat 18 made of plastic is fixedly connected to the inner wall of the arc-shaped groove 6, the inner wall of the elastic clamping seat 18 is mutually clamped with the surface of the connecting hose 5, an internal thread connector 7 attached to the end of the fixing rod 1 is communicated with the other end of the connecting hose 5, two symmetrical first fixing plates 8 are fixedly connected to the surface of the internal thread connector 7, an insertion block 9 is fixedly connected to the surface of the first fixing plate 8, and a communicated insertion groove 10 is arranged on the surface of the insertion block 9, the surface of the fixed rod 1 is provided with a limiting component 11 which is clamped and fixed with the inserting groove 10, the inner wall of the internal thread connector 7 is in threaded communication with an injection tube 12, the surface of the arc-shaped groove 6 is provided with a self-locking mechanism 13 which is used for connecting the hose 5 to convey the contrast agent, the self-locking mechanism 13 comprises a concave mounting frame 1301, the bottom of the concave mounting frame 1301 is fixedly connected with the surface of the arc-shaped groove 6, the front surface of the concave mounting frame 1301 is fixedly provided with a servo motor 1302, the output end of the servo motor 1302 is fixedly connected with a first rotating rod 1303, the surface of the first rotating rod 1303 is fixedly connected with a mounting sleeve 1304, the surface of the mounting sleeve 1304 is connected with three telescopic rods 1305 which are arranged in a circumferential array and at equal intervals, the surface of the telescopic rod 1305 is sleeved with a first spring 1306, the other end of the telescopic rod 1305 is fixedly connected with a squeezing wheel 1307 which is squeezed and attached to the surface of the connecting hose 5, no. one end fixedly connected with belt pulley 1308 of dwang 1303 located the concave type mounting bracket 1301 back, the surface of No. one belt pulley 1308 is connected with the drive belt 1309 of looks adaptation, the internal surface of drive belt 1309 is connected with the No. two belt pulleys 1310 of looks adaptation, the surface of No. two belt pulleys 1310 is connected with stirring subassembly 3, the lower fixed surface of dead lever 1 is connected with handheld pole 15, the surface mounting of handheld pole 15 has the control switch 16 that links with servo motor 1302 electricity.
In the invention, when injecting the contrast medium loaded in the medicament barrel 2, the electromagnetic valve arranged on the surface of the liquid discharge pipe 4 is firstly opened, so that the contrast medium loaded in the medicament barrel 2 is led into the connecting hose 5 in the vertical direction, and the first fixing plate 8 connected with the surface of the internal thread connector 7 is clamped and fixed at the front end of the fixing rod 1 and under the clamping of the surface of the connecting hose 5 and the elastic clamping seat 18 through the limiting component 11, so as to ensure that the connecting hose 5 can be stably placed in the inner wall of the arc-shaped groove 6 and is matched with the extrusion wheel 1307 in extrusion contact with the self-locking mechanism 13 to stably convey the contrast medium led in the connecting hose 5;
when the extrusion wheel 1307 is matched with a contrast medium introduced into the connecting hose 5 to be conveyed, only the servo motor 1302 needs to be started to drive the mounting sleeve 1304 on the surface of the first rotating rod 1303 to rotate mutually, so that three telescopic rods 1305 and a spring 1306, which are arranged in a circumferential array and at equal intervals on the surface of the mounting sleeve 1304, are compressed mutually, and the corresponding extrusion wheel 1307 is driven to do circular linear motion extrusion along the surface of the connecting hose 5, and when the three extrusion wheels 1307 repeatedly extrude the surface of the connecting hose 5, the contrast medium in the connecting hose 5 can be automatically conveyed into the female threaded connector 7 and the injection tube 12, and the contrast medium is efficiently injected into a patient, compared with a medical injector with a traditional structure, the efficiency is higher when the contrast medium is manually injected;
when an operator controls the servo motor 1302 to stop working by holding the control switch 16 designed on the surface of the handle rod 15, the mounting sleeve 1304 on the surface of the first rotating rod 1303 is in a static state, and one of three extrusion wheels 1307 which are circumferentially arrayed and equidistantly arranged on the surface of the mounting sleeve 1304 is in extrusion contact with the surface of the connecting hose 5, so that contrast media between the medicament cartridges 2 in the connecting hose 5 can be blocked by the extrusion wheels 1307, and the self-locking characteristic can be achieved, and therefore, the injection amount of the contrast media conveyed between the medicament cartridges 2 and the connecting hose 5 can be accurately controlled when the servo motor 1302 is started or closed by the control switch 16.
Example 2:
referring to fig. 1-6, a self-locking ultrasound contrast agent injection mechanism comprises a fixing rod 1, a medicament cartridge 2 is arranged above the surface of the fixing rod 1, a stirring assembly 3 is arranged inside the medicament cartridge 2, a liquid discharge tube 4 is communicated with the bottom of the medicament cartridge 2, a connecting hose 5 is communicated with the inner wall of the liquid discharge tube 4 through threads, an arc-shaped groove 6 for supporting the surface of the connecting hose 5 is arranged on the upper surface of the fixing rod 1, an internal thread connector 7 attached to the end of the fixing rod 1 is communicated with the other end of the connecting hose 5, two symmetrical first fixing plates 8 are fixedly connected to the surface of the internal thread connector 7, an insertion block 9 is fixedly connected to the surface of the first fixing plate 8, an insertion groove 10 is arranged on the surface of the insertion block 9, a limiting assembly 11 clamped and fixed with the insertion groove 10 is arranged on the surface of the fixing rod 1, the limiting assembly 11 comprises a second fixing plate 1101, the surface of the second fixing plate 1101 is fixedly connected with the surface of the fixing rod 1, a first fixing block 1101 attached to the surface of the insertion block 9, an inner side wall of the first fixing groove 1102 is provided with an inner side wall of the second fixing groove 1104, a sliding inner side wall of the second fixing groove 1104 is connected with the insertion rod 1105, and a sliding bar 1105 of the second fixing groove 1104 connected with the inner wall of the insertion bar 1105, and fixedly connected with and No. two fixed plate 1101 surperficial laminating's circular limiting plate 1106, moving plate 1104 and No. two mounting grooves 1103 correspond between the inside wall cup joint be located the surperficial No. two spring 1107 of joint bar 1105, the interior diapire of No. two mounting grooves 1103 and interior roof all are equipped with the shifting chute 1108 that the shape size equals, the inner wall sliding connection of shifting chute 1108 has movable block 1109, the surface of movable block 1109 is connected with moving plate 1104's fixed surface.
In the invention, the length of the connecting hose 5 attached to the inner wall of the arc-shaped groove 6 is designed according to the distance from the medicament barrel 2 to the front end of the fixed rod 1, and in order to stably place the connecting hose 5 in the inner wall of the arc-shaped groove 6 to be matched with the corresponding extrusion wheel 1307 for extrusion contact, a limiting component 11 is designed on the surface of the fixed rod 1 to be matched with the first fixing plate 8 on the surface of the female connector 7 for limiting, when in use, only an extension rod designed on the surface of a circular limiting plate 1106 needs to be pulled to drive the moving plate 1104 on the surface of the clamping rod 1105 to slide along the inner wall of the second mounting groove 1103 to extrude the second spring 1107, when the clamping rod 1105 is stretched inside the second mounting groove 1103, the insertion block 9 on the surface of the first fixing plate 8 can be correspondingly inserted and attached to the inner wall of the first mounting groove 1102, and finally the circular limiting plate 1106 is put down to enable the moving plate 1104 on the surface of the clamping rod 1105 to be reset under the elastic force of the second spring 1107, and the clamping rod 1105 can be clamped and fixedly inserted into the insertion groove 10 designed on the surface of the insertion block 9;
and the design of the limiting component 11 not only can improve the stability of placing between the connecting hose 5 and the arc-shaped groove 6, but also is helpful for subsequent detachment and replacement between the connecting hose 5 and the medicament container 2, when the first fixing plate 8 on the surface of the internal thread connector 7 is under the limit of being detached from the limiting component 11, the surface of the connecting hose 5 is connected, the squeezing wheel 1307 squeezes the telescopic rod 1305 and the first spring 1306 to be compressed to a certain distance, at the moment, the gap between the connecting hose 5 and the squeezing wheel 1307 is formed, the connecting hose 5 can be detached from the surface of the squeezing wheel 1307, and finally, the other end of the connecting hose 5 is rotated and detached from the liquid discharge pipe 4 through threads, so that the detachment and replacement of the connecting hose 5 can be realized.
Example 3:
referring to fig. 1-6, a push injection mechanism of ultrasonic contrast agent with self-locking, including dead lever 1, dead lever 1 is equipped with a medicament section of thick bamboo 2 on the surface, the inside of medicament section of thick bamboo 2 is equipped with stirring subassembly 3, stirring subassembly 3 includes No. two dwang 301, the one end of No. two dwang 301 is connected with the fixed surface of corresponding No. two belt pulley 1310, the other end of No. two dwang 301 extends to the inside of medicament section of thick bamboo 2, the fixed surface of No. two dwang 301 is connected with puddler 302, the fixed surface of medicament section of thick bamboo 2 is connected with L type installation pole 14, the other end of L type installation pole 14 is connected with the fixed surface of dead lever 1, the top threaded connection of medicament section of thick bamboo 2 has sealed lid 17.
In the invention, the stirring component 3 is designed in the medicament barrel 2, so as to mix and stir the contrast medium filled in the medicament barrel 2 and further improve the fluidity and uniformity of the discharge of the contrast medium, and the second rotating rod 301 in the stirring component 3 is designed to be in transmission with the second belt pulley 1310, the transmission belt 1309 and the first belt pulley 1308 in the self-locking mechanism 13, so that the stirring component 3 can stir the contrast medium in the medicament barrel 2 by the stirring rod 302 designed on the surface of the second rotating rod 301 only by starting the servo motor 1302 in the self-locking mechanism 13 to drive the first rotating rod 1303, the first belt pulley 1308, the transmission belt 1309 and the second belt pulley 1310 to be in transmission with each other, and the problem that the transmission cost is high by adding one servo motor 1302 to the second rotating rod 301 can be effectively reduced;
and stirring subassembly 3 and self-locking mechanism 13 are all under the drive through a servo motor 1302, not only can avoid No. two dwang 301 rethreads to increase the higher problem of a servo motor 1302 design cost, can also cooperate the inside contrast medium that evenly flows into coupling hose 5 in medicament section of thick bamboo 2 simultaneously, and under the extrusion transport with extrusion wheel 1307, high-efficient cooperation syringe 12 injects the contrast medium to the patient in vivo.
The invention also provides a pushing method of the pushing mechanism of the self-locking ultrasonic contrast agent, which comprises the following steps:
step A, firstly, filling a contrast agent prepared by medical personnel into a medicament barrel 2, enabling an electromagnetic valve arranged on the surface of a liquid discharge pipe 4 to be opened, and then driving a servo motor 1302 to drive a first belt pulley 1308, a transmission belt 1309 and a second belt pulley 1310 which are connected with one end of a first rotating rod 1303 positioned on the back surface of a concave mounting rack 1301 to mutually transmit, so that a stirring component 3 is matched with the stirring component 3 to mix and stir the contrast agent filled in the medicament barrel 2 under the rotation of the second belt pulley 1310, thereby ensuring that the contrast agent filled in the medicament barrel 2 can more uniformly flow into a connecting hose 5 and can be injected under the closely-contacted movement of a squeezing wheel 1307;
step B, while the servo motor 1302 drives the first rotating rod 1303, the other ends of three circumferentially arrayed and equidistantly symmetrical telescopic rods 1305 which are designed on the surface mounting sleeve 1304 of the first rotating rod 1303 can be matched with corresponding squeezing wheels 1307, under the action of the telescopic rods 1305 and the first spring 1306, the three telescopic rods 1305 are tightly attached to the surface of the connecting hose 5 to perform circular linear motion, and when the three squeezing wheels 1307 repeatedly move the surface of the connecting hose 5, the contrast medium which is guided into the medicament barrel 2 and conveyed inside the connecting hose 5 is automatically injected into the female threaded connector 7 and the injection tube 12, and the contrast medium is injected into a patient;
step C, when the servo motor 1302 stops working, the mounting sleeve 1304 on the surface of the first rotating rod 1303 can ensure that one extrusion wheel 1307 of the three extrusion wheels 1307 is tightly attached to the surface of the connecting hose 5, so that the connecting hose 5 and the medicament barrel 2 can be isolated and disconnected from each other to ensure that the injection amount of the contrast agent conveyed inside the connecting hose 5 can be accurately controlled according to the injection condition of a patient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. The push injection mechanism of the ultrasonic contrast agent with the self-locking function comprises a fixed rod (1) and is characterized in that a medicament barrel (2) is arranged above the surface of the fixed rod (1), a stirring assembly (3) is arranged inside the medicament barrel (2), a liquid discharge pipe (4) is communicated with the bottom of the medicament barrel (2), a connecting hose (5) is communicated with the inner wall of the liquid discharge pipe (4) through threads, an arc-shaped groove (6) used for supporting the surface of the connecting hose (5) is formed in the upper surface of the fixed rod (1), an internal thread connector (7) attached to the end of the fixed rod (1) is communicated with the other end of the connecting hose (5), two symmetrical first fixed plates (8) are fixedly connected to the surface of the internal thread connector (7), an inserting block (9) is fixedly connected to the surface of the first fixed plate (8), an inserting groove (10) communicated with the surface of the inserting block (9) is formed in a communicating mode, a limiting assembly (11) fixedly connected with the inserting groove (10) in a clamping mode is arranged on the surface of the fixed rod (1), an injection pipe (12) is communicated with the inner wall of the inner thread connector (7), the self-locking hose (6), the self-locking mechanism comprises a concave mounting frame (13) used for conveying the self-locking mechanism (1301) for conveying the contrast agent, the bottom of the concave mounting frame (1301) is fixedly connected with the surface of an arc-shaped groove (6), a servo motor (1302) is fixedly mounted on the front surface of the concave mounting frame (1301), a first rotating rod (1303) is fixedly connected with the output end of the servo motor (1302), a mounting sleeve (1304) is fixedly connected with the surface of the first rotating rod (1303), three telescopic rods (1305) which are arranged in a circumferential array and in an equal distance are connected with the surface of the mounting sleeve (1304), a first spring (1306) is sleeved on the surface of the telescopic rod (1305), a squeezing wheel (1307) which is attached to the surface of a connecting hose (5) in a squeezing mode is fixedly connected with the other end of the telescopic rod (1305), a first belt pulley (1308) is fixedly connected with one end of the first rotating rod (1303) which is located on the back surface of the concave mounting frame (1301), a transmission belt (1309) which is matched with the surface of the first belt (1308) is connected with the surface of the first belt (1310), a second belt pulley (1310) which is matched with a stirring assembly (1310).
2. The push injection mechanism with the self-locking ultrasonic contrast agent according to claim 1, wherein the limiting component (11) comprises a second fixing plate (1101), the surface of the second fixing plate (1101) is fixedly connected with the surface of the fixing rod (1), a first mounting groove (1102) attached to the surface of the insertion block (9) is formed in the surface of the second fixing plate (1101), a second mounting groove (1103) is formed in the inner side wall of the first mounting groove (1102), a moving plate (1104) is slidably connected to the inner wall of the second mounting groove (1103), a clamping rod (1105) is fixedly connected to the inner portion of the moving plate (1104), one end of the clamping rod (1105) is mutually clamped with the inner wall of the insertion groove (10), the other end of the clamping rod (1105) penetrates through the outer portion of the second fixing plate (1101), a circular limiting plate (1106) attached to the surface of the second fixing plate (1101) is fixedly connected with the moving plate (1104), and a second spring (1107) located on the surface of the clamping rod (1105) is sleeved between the inner side walls corresponding to the moving plate (1104) and the second mounting groove (1103).
3. The self-locking push injection mechanism of the ultrasound contrast agent according to claim 2, wherein the inner bottom wall and the inner top wall of the second mounting groove (1103) are both provided with a moving groove (1108) having the same shape and size, the inner wall of the moving groove (1108) is slidably connected with a moving block (1109), and the surface of the moving block (1109) is fixedly connected with the surface of the moving plate (1104).
4. The push injection mechanism with the self-locking function for the ultrasonic contrast medium according to claim 1, wherein the stirring assembly (3) comprises a second rotating rod (301), one end of the second rotating rod (301) is fixedly connected with the surface of a corresponding second belt pulley (1310), the other end of the second rotating rod (301) extends into the medicament cartridge (2), and the surface of the second rotating rod (301) is fixedly connected with the stirring rod (302).
5. The self-locking ultrasonic contrast agent injection mechanism according to claim 1, wherein an L-shaped mounting rod (14) is fixedly connected to the surface of the medicament cartridge (2), and the other end of the L-shaped mounting rod (14) is fixedly connected to the surface of the fixing rod (1).
6. The self-locking ultrasonic contrast agent injection mechanism according to claim 1, wherein a hand-held handle (15) is fixedly connected to the lower surface of the fixing rod (1), and a control switch (16) electrically connected with the servo motor (1302) is mounted on the surface of the hand-held handle (15).
7. The self-locking ultrasonic contrast agent injection mechanism according to claim 1, wherein a sealing cover (17) is connected to the top end of the medicament barrel (2) in a threaded manner, and an electromagnetic valve is installed on the surface of the liquid discharge pipe (4).
8. The self-locking ultrasonic contrast agent injection mechanism according to claim 1, wherein an elastic clamping seat (18) made of plastic is fixedly connected to the inner wall of the arc-shaped groove (6), and the inner wall of the elastic clamping seat (18) is clamped with the surface of the connecting hose (5).
9. The bolus method of the self-locking ultrasound contrast agent bolus mechanism according to claim 1, comprising the steps of:
step A, firstly, filling a contrast agent prepared by medical personnel into a medicament barrel (2), enabling an electromagnetic valve arranged on the surface of a liquid discharge pipe (4) to be opened, and then driving a servo motor (1302) to drive a first belt pulley (1308) with a first rotating rod (1303) positioned at one end of the back surface of a concave mounting frame (1301) to be connected, and a transmission belt (1309) and a second belt pulley (1310) to be mutually transmitted, so that a stirring component (3) is matched with the stirring component (3) to mix and stir the contrast agent filled in the medicament barrel (2) under the rotation of the second belt pulley 1310, thereby ensuring that the contrast agent filled in the medicament barrel (2) can more uniformly flow into a connecting hose (5) and can be injected under the closely contacted movement of an extrusion wheel (1307);
step B, the servo motor (1302) drives the first rotating rod (1303), meanwhile, the other ends of three telescopic rods (1305) which are in a circumferential array and are symmetrically arranged at equal intervals and are designed on a surface mounting sleeve (1304) of the first rotating rod (1303) can be matched with corresponding extrusion wheels (1307), under the action of the telescopic rods (1305) and a spring (1306), the three extrusion wheels (1307) are tightly attached to the surface of the connecting hose (5) to do circular linear motion, when the surfaces of the connecting hose (5) are repeatedly moved, the contrast agent guided into the connecting hose (5) and conveyed inside the medicament barrel (2) is automatically injected into the female thread connector (7) and the injection tube (12), and the contrast agent is injected into a patient;
step C, when the servo motor (1302) stops working, the installation sleeve (1304) on the surface of the first rotating rod (1303) can ensure that one extrusion wheel (1307) of the three extrusion wheels (1307) is tightly attached to the surface of the connecting hose (5), so that the connecting hose (5) and the medicament barrel (2) can be isolated and disconnected from each other to enable the connecting hose (5) to convey the injection amount of the contrast medium, and the injection amount can be accurately controlled according to the injection condition in a patient.
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| CN202211220844.8A CN115429976B (en) | 2022-10-08 | 2022-10-08 | Pushing mechanism with self-locking ultrasonic contrast agent and pushing method thereof |
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| CN115429976B (en) | 2023-12-01 |
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