CN115154763B - High-pressure injector - Google Patents
High-pressure injector Download PDFInfo
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- CN115154763B CN115154763B CN202211005009.2A CN202211005009A CN115154763B CN 115154763 B CN115154763 B CN 115154763B CN 202211005009 A CN202211005009 A CN 202211005009A CN 115154763 B CN115154763 B CN 115154763B
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- sliding
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims description 15
- 239000003381 stabilizer Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims 2
- 239000002872 contrast media Substances 0.000 abstract description 45
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 16
- 235000017491 Bambusa tulda Nutrition 0.000 description 16
- 241001330002 Bambuseae Species 0.000 description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 16
- 239000011425 bamboo Substances 0.000 description 16
- 230000000087 stabilizing effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- 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
-
- 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
- A61M5/31—Details
- A61M5/3129—Syringe barrels
-
- 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
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
Landscapes
- 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 relates to the technical field of injectors, and discloses a high-pressure injector, which solves the problems that the injector cannot accurately position contrast agent, so that the injection quantity is inaccurate and the injection quality is affected; the design realizes slow injection of the contrast agent in the later injection period, realizes accurate positioning of the suction quantity of the contrast agent through the design of the liquid level adjusting mechanism, and improves the accuracy and injection quality of the contrast agent.
Description
Technical Field
The invention belongs to the technical field of injectors, and particularly relates to a high-pressure injector.
Background
A high pressure injector is a contrast agent delivery system, the contrast agent is often also referred to as contrast agent; for injecting radiopaque contrast agents into the vascular system of a patient so that a diagnostic grade image can be acquired when using a computed tomography device. The imaging device is mainly used in digital medical imaging medical equipment such as CT, DSA, MRI, X line angiography machines and the like at present and is used for enhancing the clinical requirements of contrast imaging. For example, when the enhanced CT examination is performed, the high-pressure injector can rapidly and accurately inject a sufficient amount of high-concentration contrast agent into the blood vessel of a human body, namely, the contrast agent is injected into the blood vessel in a 'bolus injection and rapid' method, so that the viscera, lesions and blood vessels to be observed are more clearly displayed.
However, in the related art, the contrast medium is mostly stored in a contrast medium container, and the injector draws the contrast medium from the contrast medium container; the staff can not carry out accurate location when sucking contrast medium, can cause the injection inaccurate, and then can influence injection quality.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the high-pressure injector, which effectively solves the problems that the injector cannot accurately position the contrast agent in the prior art, the injection quantity is inaccurate, and the injection quality is affected.
In order to achieve the above purpose, the present invention provides the following technical solutions: the high-pressure injector comprises a needle cylinder, an injection needle is connected to the bottom end of the needle cylinder, a supporting plate is arranged at the bottom end of the needle cylinder, a supporting groove sleeved at the bottom end of the needle cylinder is formed in the bottom end of the supporting plate, first fixing rods are symmetrically arranged at the top end of the supporting plate, the top ends of the two first fixing rods are connected through fixing plates, an opening sleeved at the outside of the needle cylinder is formed in the middle position of each fixing plate, clamping mechanisms connected with the needle cylinder are symmetrically arranged on the inner wall of the opening, a first through hole is formed in the top end of the needle cylinder, a pushing cylinder penetrating through the first through hole is inserted in the interior of the needle cylinder, a piston connected with the inner wall of the needle cylinder in a sliding mode is arranged at the bottom end of the pushing cylinder, first limiting blocks are symmetrically arranged on the inner wall of the first through holes, first limiting grooves connected with the first limiting blocks in a sliding mode are formed in the outer walls of the pushing cylinder, fine adjusting mechanisms are arranged in the pushing cylinder, the two first fixing rods are connected through gear type air extracting mechanisms, first mounting plates are slidably arranged on the inner walls of one first fixing rods, one side of the first fixing plates are provided with liquid level sensors and indicator lamps, the first mounting plates are connected with the liquid level adjusting mechanisms through driving units;
the drive unit comprises a second mounting plate, a double-shaft motor, a rotating cylinder, an electric push rod and a pusher, wherein one side of one first fixing rod is movably provided with the second mounting plate, one side of the second mounting plate is provided with the double-shaft motor, one output shaft of the double-shaft motor is connected with a first bevel gear, the first bevel gear is connected with a gear type air extraction mechanism, the other output shaft of the double-shaft motor is connected with the rotating cylinder, the rotating cylinder is connected with a liquid level adjusting mechanism, and the second mounting plate is connected with the pusher.
Preferably, the pusher comprises an electric push rod, a second limiting groove and a second limiting block, the second limiting block is arranged at the top of one side of the second mounting plate, the second limiting groove which is in sliding connection with the second limiting block is formed in the side wall of the first fixing rod, and the electric push rod connected with the bottom end of the second mounting plate is mounted on one side of the first fixing rod.
Preferably, the fine tuning includes opening two, dwang, rotation button, thread piece, recess, second dead lever, inserted bar and spring, opening two has been seted up on the top of pushing away the section of thick bamboo, the inside of pushing away the section of thick bamboo alternates there is the dwang, the inside of one end penetration opening two of dwang, the top of dwang is equipped with the rotation button, the recess has been seted up to the outer wall of dwang, the bottom of dwang be equipped with pushing away section of thick bamboo inner wall threaded connection's thread piece, the top symmetry of cylinder is equipped with the second dead lever, the top of second dead lever all alternates there is the inserted bar, the one end of inserted bar extends to the inside of recess, the cover is equipped with the spring of being connected with the second dead lever lateral wall on the inserted bar.
Preferably, the liquid level regulating mechanism comprises a slide way, a first slide bar, a screw rod, a first sliding block and a slide rail, wherein the first slide bar is arranged on one side of the first mounting plate, the slide way which is in sliding connection with the first slide bar is arranged on the first fixing rod, the screw rod is arranged at the top end of the supporting plate, the first slide bar is sleeved outside the screw rod, the screw rod is in threaded connection with the first slide bar, the first sliding block is symmetrically arranged at the top end of the screw rod, and the slide rail which is matched with the first sliding block is arranged on the inner wall of the rotating cylinder.
Preferably, the outer wall of the needle cylinder is provided with a liquid level marking line positioned at one side of the liquid level sensor.
Preferably, the fixture includes holding tank one, internal thread section of thick bamboo, the second slider, clamping lever and rotation axis, holding tank one has been seted up to the inside symmetry of fixed plate, the inside swing joint of holding tank one has an internal thread section of thick bamboo, the rotation axis that extends to holding tank one inside is installed in the outer wall rotation of fixed plate, the rotation axis alternates in the inside of internal thread section of thick bamboo, and internal thread section of thick bamboo and rotation axis threaded connection, the one end of internal thread section of thick bamboo is equipped with the second slider with holding tank one sliding connection, the one end of second slider is equipped with the clamping lever that extends to the opening inside, clamping lever and cylinder outer wall connection, be linked together through the through-hole between clamping lever and the second slider.
Preferably, the inner wall of the first accommodating groove is symmetrically provided with a stabilizer bar, and the internal thread cylinder is provided with a stabilizer groove sleeved outside the stabilizer bar.
Preferably, the gear type air extraction mechanism comprises a gear type transmission group and an air extraction group, the gear type transmission group comprises a base, a second conical gear, gears, a lantern ring and toothed plates, the base connected with the side wall of the first fixing rod is arranged above the double-shaft motor, the second conical gear and the gears are rotatably arranged on the base, the second conical gear is located on one side of the gears, the lantern ring is movably sleeved outside the two first fixing rods, the lantern ring is connected with the air extraction group, and the toothed plates connected with the gears in a meshed mode are arranged on the inner wall of the lantern ring.
Preferably, the top end of the first fixing rod is provided with a second containing groove, and the second containing groove is communicated with the through hole.
Preferably, the air extraction group comprises a third sliding block, a second sliding rod, a connecting rod and a moving groove, the third sliding block is arranged in the second accommodating groove in a sliding mode, the second sliding rod is arranged at the bottom end of the third sliding block, the moving groove is formed in the side wall of the first fixing rod, the connecting rod in sliding connection with the moving groove is arranged on one side of the second sliding rod, and the connecting rod is connected with the inner wall of the lantern ring.
Compared with the prior art, the invention has the beneficial effects that:
(1) In operation, through the arrangement of the needle cylinder, the injection needle, the supporting plate, the first fixing rod, the fixing plate, the opening, the bracket, the pushing cylinder, the first through hole, the piston, the first limiting block and the fine adjustment mechanism, the contrast agent is injected from high speed to low speed, the contrast agent is slowly injected at the later period of injection, the discomfort of an injected person is avoided due to the fact that the contrast agent is injected faster, the accurate positioning of the suction quantity of the contrast agent is realized through the design of the liquid level adjustment mechanism, the low injection quality caused by the fact that the contrast agent quantity is too small is avoided, the connection stability of the supporting plate and the needle cylinder is improved through the cooperation of the clamping mechanism and the gear type air extraction mechanism, the stability of the liquid level sensor is further improved, and the accuracy and the injection quality of the contrast agent are improved;
(2) Through the design of the electric push rod, the second limiting groove and the second limiting block, the gear type air exhaust mechanism and the liquid level adjusting mechanism can be effectively provided with possibility;
(3) Through the design of the second through hole, the rotating rod, the rotating button, the thread block, the groove, the second fixed rod, the inserting rod and the spring, slow injection of the contrast agent is conveniently realized, the discomfort caused by faster injection of the contrast agent is avoided, and the practicability of the device is further improved;
(4) The liquid level sensor is convenient to adjust by the design of the slide way, the first slide bar, the screw rod, the first slide block and the slide rail, so that the suction amount of the contrast agent is convenient to accurately position, the accuracy of the injection amount is improved, and the injection quality is improved;
(5) Through holding tank one, internal thread section of thick bamboo, second slider, clamping lever, rotation axis, base, bevel gear two, gear, lantern ring and pinion rack's design, realize the fixed to the cylinder, improved the connection stability of level sensor and cylinder, avoid level sensor to shift and cause contrast agent suction to appear the deviation in cylinder one side, and then improved the accuracy of contrast agent.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a portion of a fine tuning mechanism according to the present invention;
FIG. 3 is a schematic diagram of the connection structure of the liquid level adjusting mechanism and the gear type air extracting mechanism;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;
FIG. 5 is a schematic view of a portion of the structure of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of the external structure of FIG. 3 according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of the present invention at B in FIG. 1;
FIG. 8 is a schematic view of the exterior structure of FIG. 1 according to the present invention;
in the figure: 1. a needle cylinder; 2. an injection needle; 3. a supporting plate; 4. a first fixing rod; 5. a fixing plate; 6. an opening; 7. a bracket; 8. pushing a cylinder; 9. a first through opening; 10. a piston; 11. a first limiting block; 12. a first limit groove; 13. a second through port; 14. a rotating lever; 15. a rotating knob; 16. a screw block; 17. a groove; 18. a second fixing rod; 19. a rod; 20. a spring; 21. a liquid level marking line; 22. a first mounting plate; 23. a liquid level sensor; 24. a slideway; 25. a first slide bar; 26. a screw rod; 27. a second mounting plate; 28. a biaxial motor; 29. a rotating cylinder; 30. a first slider; 31. a slide rail; 32. an electric push rod; 33. the second limit groove; 34. a second limiting block; 35. a first conical gear; 36. a base; 37. a second bevel gear; 38. a gear; 39. a collar; 40. a toothed plate; 41. an accommodating groove I; 42. an internal thread cylinder; 43. a second slider; 44. a clamping rod; 45. a rotation shaft; 46. a stabilizer bar; 47. a stabilizing groove; 48. a through hole; 49. a second accommodating groove; 50. a third slider; 51. a second slide bar; 52. a connecting rod; 53. and a moving groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; 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.
The first embodiment is shown in fig. 1 to 8, the invention comprises a needle cylinder 1, the bottom end of the needle cylinder 1 is connected with an injection needle 2, the bottom end of the needle cylinder 1 is provided with a supporting plate 3, the bottom end of the supporting plate 3 is provided with a supporting groove 7 sleeved at the bottom end of the needle cylinder 1, the top ends of the supporting plate 3 are symmetrically provided with first fixing rods 4, the top ends of the two first fixing rods 4 are connected through a fixing plate 5, an opening 6 sleeved at the outside of the needle cylinder 1 is arranged at the middle position of the fixing plate 5, the inner wall of the opening 6 is symmetrically provided with a clamping mechanism connected with the needle cylinder 1, the top end of the needle cylinder 1 is provided with a first through hole 9, the interior of the needle cylinder 1 is penetrated with a pushing cylinder 8 penetrating through the interior of the first through hole 9, the bottom end of the pushing cylinder 8 is provided with a piston 10 in sliding connection with the inner wall of the needle cylinder 1, the inner wall of the first through hole 9 is symmetrically provided with a first limiting block 11, the outer wall of the pushing cylinder 8 is provided with a first limiting groove 12 in sliding connection with the first limiting block 11, the interior of the pushing cylinder 8 is connected with a first fine adjusting mechanism through the gear type air suction mechanism, the two first fixing rods 4 are connected through the gear type air suction mechanism, the inner wall 22 is provided with the first liquid level sensor 22 is provided with a liquid level sensor 22 is connected with a liquid level adjusting unit through the liquid level adjusting unit;
the driving unit comprises a second mounting plate 27, a double-shaft motor 28, a rotating cylinder 29, an electric push rod 32 and a pusher, wherein the second mounting plate 27 is movably mounted on one side of one first fixing rod 4, the double-shaft motor 28 is arranged on one side of the second mounting plate 27, one output shaft of the double-shaft motor 28 is connected with a first conical gear 35, the first conical gear 35 is connected with a gear type air extraction mechanism, the other output shaft of the double-shaft motor 28 is connected with the rotating cylinder 29, the rotating cylinder 29 is connected with a liquid level adjusting mechanism, the second mounting plate 27 is connected with the pusher, the pusher comprises the electric push rod 32, a second limiting groove 33 and a second limiting block 34, the second limiting groove 33 which is in sliding connection with the second limiting block 34 is formed in the top of one side of the second mounting plate 27, and the electric push rod 32 which is connected with the bottom end of the second mounting plate 27 is mounted on one side of the first fixing rod 4;
through starting biax motor 28, biax motor 28 can drive a rotation section of thick bamboo 29 and a conical gear 35 rotation, through starting electric putter 32, electric putter 32 can drive second mounting panel 27 and remove, second mounting panel 27 can drive second stopper 34 and slide in second spacing groove 33, can make a conical gear 35 and gear 38 meshing, and then provide power for gear formula air extraction mechanism, when electric putter 32 drives second mounting panel 27 and moves down, can make biax motor 28 drive a conical gear 35 and move down, and make a conical gear 35 and gear 38 disconnection, and then biax motor 28 can drive a rotation section of thick bamboo 29 and move down, rotation section of thick bamboo 29 can drive slide rail 31 and move down, and make slide rail 31 cup joint in the outside of first slider 30, and then realize the joint of first slider 30 and slide rail 31, and then rotation section of thick bamboo 29 rotates and can provide power for liquid level adjustment mechanism's action.
In the second embodiment, based on the first embodiment, as shown in fig. 1, fig. 2 and fig. 8, the fine adjustment mechanism includes a second through hole 13, a rotating rod 14, a rotating knob 15, a threaded block 16, a groove 17, a second fixing rod 18, an inserting rod 19 and a spring 20, the second through hole 13 is opened at the top end of the push cylinder 8, the rotating rod 14 is inserted into the push cylinder 8, one end of the rotating rod 14 penetrates through the second through hole 13, the rotating knob 15 is arranged at the top end of the rotating rod 14, the groove 17 is opened at the outer wall of the rotating knob 15, the threaded block 16 in threaded connection with the inner wall of the push cylinder 8 is arranged at the bottom end of the rotating rod 14, the second fixing rod 18 is symmetrically arranged at the top end of the needle cylinder 1, the inserting rod 19 is inserted at the top of the second fixing rod 18, one end of the inserting rod 19 extends into the groove 17, and the spring 20 connected with the side wall of the second fixing rod 18 is sleeved on the inserting rod 19;
the staff pushes the rotating knob 15, the rotating knob 15 can push the pushing cylinder 8 to slide in the first through hole 9 through the rotating rod 14 and the threaded block 16, then the pushing cylinder 8 can drive the piston 10 to move downwards, the piston 10 can move downwards in the syringe 1, when the rotating knob 15 moves to the flush position of the inserting rods 19, the rotating knob 15 is located between the two inserting rods 19, then the inserting rods 19 are loosened, one end of the inserting rods 19 can extend to the inside of the grooves 17 under the reverse acting force of the springs 20, then the rotating knob 15 is rotated, the rotating knob 15 can drive the threaded block 16 to rotate, the pushing cylinder 8 can move downwards in the outside of the threaded block 16 through the threaded connection relation between the threaded block 16 and the pushing cylinder 8 and the sliding connection relation between the first limiting block 11 and the first limiting groove 12, and then the pushing cylinder 8 can push the piston 10 to move downwards, and slow injection of the piston 10 to contrast agents is achieved.
The third embodiment is provided by fig. 1, 3, 5 and 6, the liquid level adjusting mechanism comprises a slideway 24, a first slide bar 25, a screw rod 26, a first slide block 30 and a slide rail 31, the first slide bar 25 is installed on one side of the first mounting plate 22, the slideway 24 which is in sliding connection with the first slide bar 25 is arranged on the first fixing rod 4, the screw rod 26 is arranged at the top end of the supporting plate 3, the first slide bar 25 is sleeved outside the screw rod 26, the screw rod 26 is in threaded connection with the first slide bar 25, the first slide block 30 is symmetrically arranged at the top end of the screw rod 26, the slide rail 31 which is matched with the first slide block 30 is arranged on the inner wall of the rotating cylinder 29, and the liquid level marking line 21 which is positioned on one side of the liquid level sensor 23 is arranged on the outer wall of the needle cylinder 1;
the rotation of the rotating cylinder 29 drives the sliding rail 31 to rotate, the screw rod 26 can be rotated through the clamping connection relation between the sliding rail 31 and the first sliding block 30, the first sliding rod 25 can slide on the sliding rail 24 through the threaded connection relation between the screw rod 26 and the first sliding rod 25 and the sliding connection relation between the first sliding rod 25 and the sliding rail 24, the first sliding rod 25 can drive the first mounting plate 22 to move, the first mounting plate 22 can drive the liquid level sensor 23 to move, the liquid level sensor 23 is further adjusted to move to the contrast agent injection height, and after the contrast agent reaches the position of the liquid level sensor 23, an indicator lamp can be lighted, so that the injection operation of the contrast agent is stopped.
In the fourth embodiment, as shown in fig. 1 and 7, the clamping mechanism includes a first accommodating groove 41, an internal thread cylinder 42, a second slider 43, a clamping rod 44 and a rotating shaft 45, the first accommodating groove 41 is symmetrically arranged in the fixing plate 5, the internal thread cylinder 42 is movably connected in the first accommodating groove 41, the rotating shaft 45 extending into the first accommodating groove 41 is rotatably arranged on the outer wall of the fixing plate 5, the rotating shaft 45 is inserted into the internal thread cylinder 42, the internal thread cylinder 42 is in threaded connection with the rotating shaft 45, one end of the internal thread cylinder 42 is provided with the second slider 43 in sliding connection with the first accommodating groove 41, one end of the second slider 43 is provided with the clamping rod 44 extending into the opening 6, the clamping rod 44 is connected with the outer wall of the needle cylinder 1, the clamping rod 44 is communicated with the second slider 43 through a through hole 48, the stabilizing rod 46 is symmetrically arranged on the inner wall of the first accommodating groove 41, and the stabilizing groove 47 sleeved outside the stabilizing rod 46 is arranged on the internal thread cylinder 42;
the staff rotates rotation axis 45, through rotation axis 45 and the threaded connection relation of internal thread section of thick bamboo 42 and cooperation stabilizer bar 46 and the sliding connection relation of stabilizer groove 47, can make internal thread section of thick bamboo 42 remove in rotation axis 45's outside, internal thread section of thick bamboo 42 can drive second slider 43 and slide at the inner wall of holding tank one 41, and then second slider 43 can drive clamping lever 44 and remove, be convenient for adjust the interval of two clamping levers 44, make things convenient for two clamping levers 44 to carry out the centre gripping to cylinder 1, first dead lever 4, fixed plate 5 and level sensor 23's installation stability has been improved, and then level sensor 23's regulation stability has been improved, the effectual injection accuracy who improves the contrast medium.
Based on the first embodiment, as shown in fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, the gear type air extraction mechanism comprises a gear type transmission set and an air extraction set, the gear type transmission set comprises a base 36, a bevel gear two 37, a gear 38, a lantern ring 39 and a toothed plate 40, the base 36 connected with the side wall of the first fixed rod 4 is arranged above the double-shaft motor 28, the bevel gear two 37 and the gear 38 are rotatably arranged on the base 36, the bevel gear two 37 is positioned at one side of the gear 38, the lantern rings 39 are movably sleeved outside the two first fixed rods 4, the lantern rings 39 are connected with the air extraction set, the toothed plate 40 meshed with the gear 38 is arranged on the inner wall of the lantern ring 39, the top ends of the first fixed rods 4 are respectively provided with a containing groove two 49, the containing groove two 49 are communicated with the through holes 48, the air extraction set comprises a third sliding block 50, a second sliding rod 51, a connecting rod 52 and a moving groove 53, the inner side of the containing groove two 49 is slidingly provided with the third sliding block 50, the bottom end of the third sliding block 50 is respectively provided with a second sliding rod 51, the side wall of the first fixed rod 4 is provided with a moving groove 53, the inner wall of the sliding rod 52 is respectively, and the inner wall of the second sliding rod 52 is provided with the connecting groove 52 and the connecting groove 52 is connected with the sliding groove 52;
through the meshing connection relation of the first bevel gear 35 and the gear 38, the gear 38 can be rotated, through the meshing connection relation of the gear 38 and the toothed plate 40, the toothed plate 40 can drive the lantern ring 39 to move downwards outside the syringe 1, the lantern ring 39 can drive the connecting rod 52 to slide in the moving groove 53, the connecting rod 52 can drive the second sliding rod 51 to slide in the accommodating groove 49, the third sliding block 50 can suck gas at the joint of the clamping rod 44 and the syringe 1 through the stabilizing groove 47, vacuum adsorption of the clamping rod 44 and the syringe 1 is realized, the clamping stability of the clamping rod 44 and the syringe 1 is improved, the adjusting stability of the liquid level sensor 23 is further improved, deviation of the position of the liquid level sensor 23 after the position adjustment is avoided, and the injection accuracy of contrast agent is further improved.
Working principle: during operation, a worker penetrates through the opening 6 of the needle cylinder 1 and places the needle cylinder 1 in the bracket 7, then the injection needle 2 is mounted at the top end of the needle cylinder 1, the double-shaft motor 28 drives the rotating cylinder 29 and the first conical gear 35 to rotate by starting the double-shaft motor 28, the electric push rod 32 drives the second mounting plate 27 to slide by starting the electric push rod 32, the second mounting plate 27 drives the second limiting block 34 to slide in the second limiting groove 33, then the first conical gear 35 is meshed with the gear 38, the gear 38 is rotated, the toothed plate 40 drives the lantern ring 39 to move upwards outside the needle cylinder 1 through the meshing connection relation between the gear 38 and the toothed plate 40, the lantern ring 39 drives the connecting rod 52 to slide in the moving groove 53, and then the connecting rod 52 drives the second sliding rod 51 to slide in the second accommodating groove 49, and the third sliding block 50 is moved to the inner top end of the second accommodating groove 49;
then, the rotating shaft 45 is rotated, the internal thread cylinder 42 moves outside the rotating shaft 45 through the threaded connection relation between the rotating shaft 45 and the internal thread cylinder 42 and the sliding connection relation between the matching stabilizing rod 46 and the stabilizing groove 47, the internal thread cylinder 42 drives the second sliding block 43 to slide on the inner wall of the first accommodating groove 41, and the second sliding block 43 drives the clamping rods 44 to move, so that the distance between the two clamping rods 44 is convenient to adjust, and the two clamping rods 44 are convenient to clamp the needle cylinder 1; then the double-shaft motor 28 is controlled to reversely rotate, so that the lantern ring 39 drives the connecting rod 52 to move downwards in the moving groove 53, the second sliding rod 51 drives the third sliding block 50 to move downwards, and then the gas at the joint of the clamping rod 44 and the needle cylinder 1 is pumped through the stabilizing groove 47, so that the vacuum adsorption of the clamping rod 44 and the needle cylinder 1 is realized, and the clamping stability of the clamping rod 44 and the needle cylinder 1 is improved;
then, the second mounting plate 27 is driven to move downwards through the action of the electric push rod 32, the double-shaft motor 28 drives the first conical gear 35 to move downwards, the first conical gear 35 is disconnected with the gear 38, the double-shaft motor 28 drives the rotating cylinder 29 to move downwards, the rotating cylinder 29 drives the sliding rail 31 to move downwards, the sliding rail 31 is sleeved outside the first sliding block 30, the clamping connection of the first sliding block 30 and the sliding rail 31 is realized, meanwhile, the rotating cylinder 29 is driven to rotate by the rotation of the double-shaft motor 28, the sliding rail 31 is driven to rotate by the rotation of the rotating cylinder 29, the screw rod 26 is driven to rotate through the clamping connection relation between the sliding rail 31 and the first sliding block 30, the first sliding rod 25 slides on the sliding way 24 through the threaded connection relation between the screw rod 26 and the first sliding rod 25 and the sliding way 24, the first sliding rod 25 drives the first mounting plate 22 to move, the liquid level sensor 23 is driven to move, and the liquid level sensor 23 is regulated to move to the contrast agent suction height;
then staff pulls the inserted link 19 and makes the spring 20 be in compression, and then upwards pull the push cylinder 8, push cylinder 8 can drive piston 10 to move down in the inside of cylinder 1, and pull to inserted link 19 through syringe needle 2 suction contrast medium gets into cylinder 1, then according to the position of level sensor 23, after the contrast medium of sucking reaches level sensor 23 position, the pilot lamp lights, and then stop the suction operation of contrast medium, the precision of contrast medium suction volume has been improved, then during the injection, the staff pushes down rotation button 15, rotation button 15 can drive push cylinder 8 through the effect of dwang 14 and screw thread piece 16 and move down, push cylinder 8 can drive piston 10 and move down, and then can make the contrast medium discharge through syringe needle 2, when rotation button 15 moves to the parallel and level with inserted link 19, then loosen the pulling to inserted link 19, under the reverse effort of spring 20, can make the one end of inserted link 19 extend to the inside of recess 17, then rotate button 15 and drive screw thread piece 16 and can not move down by the screw thread piece 16 and the contrast medium can not be moved down by the high-quality through the screw thread piece 16, and the contrast medium can be avoided the contrast medium is not to the high-quality contrast medium is moved down in the design of the injection cylinder 8, and the contrast medium is not moved down by the high-quality is realized, and the contrast medium is not matched with the injection cylinder 8 is more than the thread piece is moved down through the thread piece 16, and is avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (6)
1. A high pressure injector comprising a needle cylinder (1), characterized in that: the bottom of the needle cylinder (1) is connected with an injection needle (2), the bottom of the needle cylinder (1) is provided with a supporting plate (3), the bottom of the supporting plate (3) is provided with a supporting groove (7) sleeved at the bottom of the needle cylinder (1), the top of the supporting plate (3) is symmetrically provided with a first fixing rod (4), the top ends of the two first fixing rods (4) are connected through a fixing plate (5), the middle position of the fixing plate (5) is provided with an opening (6) sleeved at the outside of the needle cylinder (1), the inner wall of the opening (6) is symmetrically provided with a clamping mechanism connected with the needle cylinder (1), the top of the needle cylinder (1) is provided with a first opening (9), the inside of the needle cylinder (1) is penetrated with a pushing cylinder (8) penetrating through the inside the first opening (9), the bottom of the pushing cylinder (8) is provided with a piston (10) which is in sliding connection with the inner wall of the needle cylinder (1), the inner wall of the first pushing cylinder (8) is symmetrically provided with a first limiting block (11), the outer wall of the pushing cylinder (8) is provided with a first limiting groove (12) which is in sliding connection with the first limiting block (11), the inner wall of the pushing cylinder (8) is internally provided with a fine adjusting mechanism (22) which is provided with one of the first gear type (4), one side of the first mounting plate (22) is provided with a liquid level sensor (23) and an indicator lamp, the first mounting plate (22) is connected with a liquid level adjusting mechanism, and the liquid level adjusting mechanism is connected with a gear type air extracting mechanism through a driving unit;
the driving unit comprises a second mounting plate (27), a double-shaft motor (28), a rotating cylinder (29), an electric push rod (32) and a pusher, wherein the second mounting plate (27) is movably mounted on one side of one first fixing rod (4), the double-shaft motor (28) is arranged on one side of the second mounting plate (27), one output shaft of the double-shaft motor (28) is connected with a first conical gear (35), the first conical gear (35) is connected with the gear type air extraction mechanism, the other output shaft of the double-shaft motor (28) is connected with the rotating cylinder (29), the rotating cylinder (29) is connected with the liquid level adjusting mechanism, and the second mounting plate (27) is connected with the pusher; the pusher comprises an electric push rod (32), a second limit groove (33) and a second limit block (34), the second limit block (34) is arranged at the top of one side of the second mounting plate (27), the second limit groove (33) which is in sliding connection with the second limit block (34) is formed in the side wall of the first fixing rod (4), and the electric push rod (32) which is connected with the bottom end of the second mounting plate (27) is mounted on one side of the first fixing rod (4); the fine adjustment mechanism comprises a second through hole (13), a rotating rod (14), a rotating button (15), a thread block (16), a groove (17), a second fixed rod (18), an inserting rod (19) and a spring (20), wherein the second through hole (13) is formed in the top end of the pushing barrel (8), the rotating rod (14) is inserted into the pushing barrel (8), one end of the rotating rod (14) penetrates through the second through hole (13), the rotating button (15) is arranged at the top end of the rotating rod (14), the groove (17) is formed in the outer wall of the rotating button (15), the thread block (16) in threaded connection with the inner wall of the pushing barrel (8) is arranged at the bottom end of the rotating rod (14), the second fixed rod (18) is symmetrically arranged at the top end of the needle cylinder (1), the inserting rods (19) are inserted into the top of the second fixed rod (18), one end of each inserting rod (19) extends into the groove (17), and the spring (20) connected with the side wall of the second fixed rod (18) is sleeved on the inserting rod (19); the liquid level adjusting mechanism comprises a slide way (24), a first slide bar (25), a screw rod (26), a first sliding block (30) and a sliding rail (31), wherein the first slide bar (25) is installed on one side of the first mounting plate (22), the slide way (24) which is in sliding connection with the first slide bar (25) is arranged on the first fixing rod (4), the screw rod (26) is arranged at the top end of the supporting plate (3), the first sliding bar (25) is sleeved outside the screw rod (26), the screw rod (26) is in threaded connection with the first sliding bar (25), the first sliding block (30) is symmetrically arranged at the top end of the screw rod (26), and the sliding rail (31) which is matched with the first sliding block (30) is arranged on the inner wall of the rotating cylinder (29); the clamping mechanism comprises a holding groove I (41), an internal thread cylinder (42), a second sliding block (43), a clamping rod (44) and a rotating shaft (45), wherein the holding groove I (41) is symmetrically arranged in the fixing plate (5), the internal movable connection of the holding groove I (41) is provided with the internal thread cylinder (42), the rotating shaft (45) extending to the inside of the holding groove I (41) is rotatably arranged on the outer wall of the fixing plate (5), the rotating shaft (45) is inserted in the inside of the internal thread cylinder (42), the internal thread cylinder (42) is in threaded connection with the rotating shaft (45), one end of the internal thread cylinder (42) is provided with the second sliding block (43) which is in sliding connection with the holding groove I (41), one end of the second sliding block (43) is provided with the clamping rod (44) extending to the inside of the opening (6), and the clamping rod (44) is connected with the outer wall of the needle cylinder (1) and is communicated with the second sliding block (43) through a through hole (48).
2. A high pressure syringe according to claim 1, wherein: the outer wall of the needle cylinder (1) is provided with a liquid level marking line (21) positioned at one side of a liquid level sensor (23).
3. A high pressure syringe according to claim 1, wherein: the inner wall of the first accommodating groove (41) is symmetrically provided with a stabilizer bar (46), and the inner thread cylinder (42) is provided with a stabilizer groove (47) sleeved outside the stabilizer bar (46).
4. A high pressure syringe according to claim 1, wherein: gear formula air extraction mechanism includes gear formula drive train and group of bleeding, gear formula drive train includes base (36), conical gear second (37), gear (38), lantern ring (39) and pinion rack (40), the top of biax motor (28) is equipped with base (36) be connected with first dead lever (4) lateral wall, conical gear second (37) and gear (38) are installed in the rotation on base (36), conical gear second (37) are located one side of gear (38), the outside movable sleeve of two first dead levers (4) is equipped with lantern ring (39), lantern ring (39) are connected with the group of bleeding, the inner wall of lantern ring (39) is equipped with pinion rack (40) of being connected with gear (38) meshing.
5. A high pressure syringe according to claim 4, wherein: the top end of the first fixing rod (4) is provided with a second accommodating groove (49), and the second accommodating groove (49) is communicated with the through hole (48).
6. A high pressure syringe as defined in claim 5, wherein: the air extraction group comprises a third sliding block (50), a second sliding rod (51), a connecting rod (52) and a moving groove (53), wherein the third sliding block (50) is arranged in the accommodating groove II (49) in a sliding mode, the second sliding rod (51) is arranged at the bottom end of the third sliding block (50), the moving groove (53) is formed in the side wall of the first fixing rod (4), the connecting rod (52) which is in sliding connection with the moving groove (53) is arranged on one side of the second sliding rod (51), and the connecting rod (52) is connected with the inner wall of the lantern ring (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211005009.2A CN115154763B (en) | 2022-08-22 | 2022-08-22 | High-pressure injector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211005009.2A CN115154763B (en) | 2022-08-22 | 2022-08-22 | High-pressure injector |
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| Publication Number | Publication Date |
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| CN115154763A CN115154763A (en) | 2022-10-11 |
| CN115154763B true CN115154763B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211005009.2A Active CN115154763B (en) | 2022-08-22 | 2022-08-22 | High-pressure injector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000060969A (en) * | 1998-08-24 | 2000-02-29 | Sooil Development Co Ltd | Portable automatic injector and injection needle unit |
| CN109498909A (en) * | 2018-12-30 | 2019-03-22 | 张炳泰 | The adjustable syringe of disposable medical cosmetology depth |
| CN210813141U (en) * | 2019-09-11 | 2020-06-23 | 广安市人民医院 | Novel hospital venous transfusion monitoring instrument |
| CN215275092U (en) * | 2021-04-27 | 2021-12-24 | 周雨胜 | Adjustable continuous quantitative injector |
| CN215608312U (en) * | 2021-07-01 | 2022-01-25 | 深圳爱非科医疗器械技术有限公司 | Propulsion system of medical injection pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030105430A1 (en) * | 2001-11-30 | 2003-06-05 | Elan Pharma International Limited Wil House | Automatic injector |
-
2022
- 2022-08-22 CN CN202211005009.2A patent/CN115154763B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000060969A (en) * | 1998-08-24 | 2000-02-29 | Sooil Development Co Ltd | Portable automatic injector and injection needle unit |
| CN109498909A (en) * | 2018-12-30 | 2019-03-22 | 张炳泰 | The adjustable syringe of disposable medical cosmetology depth |
| CN210813141U (en) * | 2019-09-11 | 2020-06-23 | 广安市人民医院 | Novel hospital venous transfusion monitoring instrument |
| CN215275092U (en) * | 2021-04-27 | 2021-12-24 | 周雨胜 | Adjustable continuous quantitative injector |
| CN215608312U (en) * | 2021-07-01 | 2022-01-25 | 深圳爱非科医疗器械技术有限公司 | Propulsion system of medical injection pump |
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| Publication number | Publication date |
|---|---|
| CN115154763A (en) | 2022-10-11 |
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