CN115154763A - High-pressure syringe - Google Patents
High-pressure syringe Download PDFInfo
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- CN115154763A CN115154763A CN202211005009.2A CN202211005009A CN115154763A CN 115154763 A CN115154763 A CN 115154763A CN 202211005009 A CN202211005009 A CN 202211005009A CN 115154763 A CN115154763 A CN 115154763A
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- rod
- wall
- cylinder
- gear
- groove
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- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 17
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 17
- 241001330002 Bambuseae Species 0.000 claims description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 17
- 239000011425 bamboo Substances 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims 3
- 239000002872 contrast media Substances 0.000 abstract description 41
- 229940039231 contrast media Drugs 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 238000005086 pumping Methods 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
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/007—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
-
- 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
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 media, so that the injection amount is inaccurate, and the injection quality is influenced; this design realizes the slow injection of contrast medium in the injection later stage, through liquid level adjustment mechanism's design, realizes the accurate location to contrast medium suction volume, has improved the accurate nature and the injection quality of contrast medium.
Description
Technical Field
The invention belongs to the technical field of injectors, and particularly relates to a high-pressure injector.
Background
High pressure injectors are a type of contrast delivery system, contrast media is also commonly referred to as contrast media; for injecting a radiopaque contrast agent into the vascular system of a patient, so that, when using a computed tomography apparatus, images at the level of diagnosis can be acquired. At present, the method is mainly used in digital medical image medical equipment such as CT, DSA, MRI, X-ray angiography machines and the like, and is used for enhancing the clinical requirement of contrast imaging. For example, when an enhanced CT examination is performed, the high-pressure injector can quickly and accurately inject a sufficient amount of high-concentration contrast agent into a human blood vessel, namely, the contrast agent is injected into the blood vessel by a 'bolus injection and quick' method, so that organs, pathological changes and blood vessels needing to be observed are displayed more clearly.
However, in the related art, the contrast medium is mostly stored in a contrast medium container, and the contrast medium is extracted from the contrast medium container by the injector; staff can not carry out accurate location when the suction contrast medium, can cause the injection volume inaccurate, and then can influence the 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 medium in the background technology, so that the injection amount is not accurate, and the injection quality is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a high-pressure injector comprises a needle cylinder, wherein the bottom end of the needle cylinder is connected with an injection needle, the bottom end of the needle cylinder is provided with a supporting plate, the bottom end of the supporting plate is provided with a supporting groove sleeved at the bottom end of the needle cylinder, the top end of the supporting plate is symmetrically provided with first fixing rods, the top ends of the two first fixing rods are connected through a fixing plate, the middle position of the fixing plate is provided with an opening sleeved outside the needle cylinder, the inner wall of the opening is symmetrically provided with a clamping mechanism connected with the needle cylinder, the top end of the needle cylinder is provided with a first opening, a push cylinder penetrating through the inside of the first opening is inserted in the needle cylinder, the bottom end of the push cylinder is provided with a piston in sliding connection with the inner wall of the needle cylinder, the inner wall of the first opening is symmetrically provided with a first limiting block, the outer wall of the push cylinder is provided with a first limiting groove in sliding connection with the first limiting block, the inside of the push cylinder is provided with a fine adjustment mechanism, the two first fixing rods are connected through a gear type air exhaust mechanism, a first mounting plate is slidably mounted on the inner wall of one of the first fixing rod, one side of the first mounting plate is provided with a liquid level sensor and an indicator lamp, the first mounting plate is connected with a liquid level adjustment mechanism, and connected with the gear type air exhaust mechanism through a drive unit;
the driving unit comprises a second mounting plate, a double-shaft motor, a rotating cylinder, an electric push rod and a pusher, wherein the second mounting plate is movably mounted on one side of one first fixing rod, the double-shaft motor is arranged on one side of the second mounting plate, one output shaft of the double-shaft motor is connected with a first conical gear, the first conical gear is connected with a gear type air exhaust 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 is slidably connected with the second limiting block and 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 arranged on one side of the first fixing rod.
Preferably, fine-tuning includes opening two, the dwang, the rotation button, the thread block, a groove, the second dead lever, inserted bar and spring, opening two has been seted up on the top of a ejector sleeve, the inside interlude of an ejector sleeve has the dwang, the one end of dwang runs through the inside of opening two, the top of dwang is equipped with the rotation button, the outer wall of rotation button is seted up flutedly, the bottom of dwang be equipped with ejector sleeve inner wall threaded connection's thread block, the top symmetry of cylinder is equipped with the second dead lever, the top of second dead lever has all interlude to have 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 second dead lever lateral wall on the inserted bar.
Preferably, the liquid level adjusting mechanism includes slide, first slide bar, lead screw, first slider and slide rail, and first slide bar is installed to one side of first mounting panel, set up on the first dead lever with first slide bar sliding connection's slide, the top of layer board is equipped with the lead screw, the outside of lead screw is located to first slide bar cover, lead screw and first slide bar threaded connection, the top symmetry of lead screw is equipped with first slider, the inner wall of a rotating cylinder be equipped with the slide rail of first slider looks adaptation.
Preferably, the outer wall of the needle cylinder is provided with a liquid level marking line positioned on one side of the liquid level sensor.
Preferably, fixture includes holding tank one, an internal thread section of thick bamboo, the second slider, supporting rod 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 outer wall of fixed plate rotates installs and extends to the inside rotation axis of holding tank one, the rotation axis alternates in the inside of an internal thread section of thick bamboo, and an internal thread section of thick bamboo and rotation axis threaded connection, the one end of an internal thread section of thick bamboo be equipped with holding tank one sliding connection's second slider, the one end of second slider is equipped with the supporting rod that extends to the opening is inside, the supporting rod is connected with the cylinder outer wall, be linked together through the through-hole between supporting rod and the second slider.
Preferably, the inner wall of the first accommodating groove is symmetrically provided with stabilizer bars, and the internal thread cylinder is provided with a stabilizing groove sleeved outside the stabilizer bars.
Preferably, the gear type air exhaust mechanism comprises a gear type transmission set and an air exhaust set, the gear type transmission set comprises a base, a second conical gear, a sleeve ring and a toothed plate, 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 gear are rotatably installed on the base, the two conical gears are located on one side of the gear, the sleeve ring is sleeved outside the two first fixing rods, the sleeve ring is connected with the air exhaust set, and the inner wall of the sleeve ring is provided with the toothed plate connected with the gear in a meshed mode.
Preferably, a second accommodating groove is formed in the top end of the first fixing rod and communicated with the through hole.
Preferably, the air exhaust group comprises a third slider, a second slide bar, a connecting bar and a moving groove, the third slider is arranged in the second accommodating groove in a sliding mode, the second slide bar is arranged at the bottom end of the third slider, the moving groove is formed in the side wall of the first fixing bar, the connecting bar is arranged on one side of the second slide bar and connected with the moving groove in a sliding mode, and the connecting bar is connected with the inner wall of the lantern ring.
Compared with the prior art, the invention has the beneficial effects that:
(1) In the work, by arranging the needle cylinder, the injection needle, the supporting plate, the first fixing rod, the fixing plate, the opening, the supporting groove, the pushing cylinder, the first through hole, the piston, the first limiting block and the fine adjustment mechanism, the injection of the contrast medium from fast to slow is realized, the slow injection of the contrast medium is realized in the later injection period, the phenomenon that the injection of the contrast medium is fast and the discomfort of an injected person is increased is avoided, the accurate positioning of the suction quantity of the contrast medium is realized through the design of the liquid level adjustment mechanism, the injection quality caused by too much and too little contrast medium is avoided, the connection stability of the supporting plate and the needle cylinder is improved through the matching of the clamping mechanism and the gear type mechanism, the stability of the liquid level sensor is further improved, and the accuracy and the injection quality of the contrast medium are improved;
(2) The design of the electric push rod, the second limiting groove and the second limiting block effectively provides possibility for the work of the gear type air exhaust mechanism and the liquid level adjusting mechanism;
(3) Through the design of the second port, the rotating rod, the rotating button, the threaded block, the groove, the second fixing rod, the inserting rod and the spring, the slow injection of the contrast medium is convenient to realize, the phenomenon that the injection discomfort is increased due to the fast injection of the contrast medium is avoided, and the practicability of the device is further improved;
(4) Through the design of the slide way, the first slide bar, the screw rod, the first slide block and the slide rail, the position of the liquid level sensor can be conveniently adjusted, so that the suction volume of the contrast medium can be conveniently and accurately positioned, the accuracy of the injection volume is improved, and the injection quality is improved;
(5) Through the design of holding tank one, an internal thread section of thick bamboo, second slider, supporting rod, rotation axis, base, conical gear two, gear, lantern ring and pinion rack, the realization is fixed to the cylinder, has improved the stability of being connected of level sensor with the cylinder, avoids level sensor to shift and cause the contrast medium suction volume to appear the deviation in cylinder one side, and then has improved the accurate nature of contrast medium.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a part of the fine adjustment mechanism of the present invention;
FIG. 3 is a schematic view of a connection structure of the liquid level adjusting mechanism and the gear type air pumping mechanism of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic diagram of a portion of the structure of FIG. 3 in accordance with 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 view of the structure of FIG. 1 at B according to the present invention;
FIG. 8 is a schematic external view of FIG. 1 according to the present invention;
in the figure: 1. a needle cylinder; 2. an injection needle; 3. a support plate; 4. a first fixing lever; 5. a fixing plate; 6. an opening; 7. a bracket; 8. a push cylinder; 9. a first through opening; 10. a piston; 11. a first stopper; 12. a first limit groove; 13. a second port; 14. rotating the rod; 15. a rotating knob; 16. a thread block; 17. a groove; 18. a second fixing bar; 19. inserting 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 double-shaft motor; 29. a rotating drum; 30. a first slider; 31. a slide rail; 32. an electric push rod; 33. a 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. a first accommodating groove; 42. an internal threaded barrel; 43. a second slider; 44. a clamping rod; 45. a rotating shaft; 46. a stabilizer bar; 47. a stabilizing slot; 48. a through hole; 49. accommodating a second tank; 50. a third slider; 51. a second slide bar; 52. a connecting rod; 53. the slot is moved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is given by figures 1 to 8, the present invention includes a needle cylinder 1, a bottom end of the needle cylinder 1 is connected with an injection needle 2, a bottom end of the needle cylinder 1 is provided with a support plate 3, a bottom end of the support plate 3 is provided with a support slot 7 sleeved at the bottom end of the needle cylinder 1, a top end of the support plate 3 is symmetrically provided with first fixing rods 4, top ends of the two first fixing rods 4 are connected through a fixing plate 5, a middle position of the fixing plate 5 is provided with an opening 6 sleeved at an outer part of the needle cylinder 1, an inner wall of the opening 6 is symmetrically provided with a clamping mechanism connected with the needle cylinder 1, a top end of the needle cylinder 1 is provided with a first through opening 9, a push cylinder 8 penetrating through the first through opening 9 is inserted in the needle cylinder 1, a bottom end of the push cylinder 8 is provided with a piston 10 slidably connected with an inner wall of the needle cylinder 1, an inner wall of the first through opening 9 is symmetrically provided with a first limiting block 11, an outer wall of the push cylinder 8 is provided with a first limiting slot 12 slidably connected with the first limiting block 11, an inner part of the push cylinder 8 is provided with a fine adjustment mechanism, the two first fixing rods 4 are connected through an air extraction mechanism, an inner wall of one of the first gear type fixing rod 4 is slidably provided with a first mounting plate 22, one side provided with an air exhaust lamp 23, a liquid level indicator lamp and a liquid level indicator lamp, and a liquid level adjusting mechanism connected with a liquid level adjusting mechanism, and a liquid level adjusting unit connected with a liquid level adjusting mechanism, and a liquid level adjusting unit, and a liquid level adjusting mechanism, and a liquid level adjusting unit are connected with the liquid level indicator unit;
the driving unit comprises a second mounting plate 27, a double-shaft motor 28, a rotating cylinder 29, electric push rods 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 bevel gear 35, the first bevel gear 35 is connected with a gear type air suction 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 rods 32, a second limiting groove 33 and a second limiting block 34, a second limiting block 34 is arranged at the top of one side of the second mounting plate 27, the second limiting groove 33 in sliding connection with the second limiting block 34 is formed in the side wall of the first fixing rod 4, and the electric push rods 32 connected with the bottom end of the second mounting plate 27 are mounted on one side of the first fixing rod 4;
by starting the dual-axis motor 28, the dual-axis motor 28 drives the rotating cylinder 29 and the first conical gear 35 to rotate, by starting the electric push rod 32, the electric push rod 32 drives the second mounting plate 27 to move, the second mounting plate 27 drives the second limiting block 34 to slide in the second limiting groove 33, the first conical gear 35 is meshed with the gear 38, and power is provided for the gear type air exhaust mechanism, when the electric push rod 32 drives the second mounting plate 27 to move downwards, the dual-axis motor 28 drives the first conical gear 35 to move downwards, the first conical gear 35 is disconnected from the gear 38, the dual-axis 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, and therefore the first sliding block 30 is clamped with the sliding rail 31, and further the rotating cylinder 29 rotates to provide power for the action of the liquid level adjusting mechanism.
In a second embodiment, based on the first embodiment, as shown in fig. 1, 2 and 8, the fine adjustment mechanism includes a second through hole 13, a rotating rod 14, a rotating button 15, a thread block 16, a groove 17, a second fixing rod 18, an insertion rod 19 and a spring 20, the second through hole 13 is formed in the top end of the pushing cylinder 8, the rotating rod 14 is inserted into the pushing cylinder 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 cylinder 8 is arranged at the bottom end of the rotating rod 14, the second fixing rods 18 are symmetrically arranged at the top end of the syringe 1, the insertion rods 19 are inserted into the tops of the second fixing rods 18, one end of the insertion rod 19 extends into the groove 17, and the spring 20 connected with the side walls of the second fixing rods 18 is sleeved on the insertion rods 19;
the staff pushes the rotation button 15, the rotation button 15 can push the push cylinder 8 to slide in the first through opening 9 through the rotation rod 14 and the thread block 16, and then the push cylinder 8 can drive the piston 10 to move downwards, and the piston 10 can move downwards in the syringe 1, and then when the rotation button 15 moves to the parallel and level position of the insert rod 19, the rotation button 15 is located between the two insert rods 19 at the moment, and then the insert rod 19 is loosened, and under the reverse acting force of the spring 20, one end of the insert rod 19 can extend to the inside of the groove 17, and then the rotation button 15 is rotated, the rotation button 15 can drive the thread block 16 to rotate, through the threaded connection relationship between the thread block 16 and the push cylinder 8 and the sliding connection relationship between the first limit block 11 and the first limit groove 12, the push cylinder 8 can move downwards outside the thread block 16, and then the push cylinder 8 can push the piston 10 to move downwards, and slow injection of the contrast medium by the piston 10 is realized.
Third embodiment, on the basis of the first embodiment, as shown in fig. 1, 3, 5 and 6, the liquid level adjusting mechanism includes a slide rail 24, a first slide bar 25, a screw rod 26, a first slider 30 and a slide rail 31, the first slide bar 25 is installed on one side of the first mounting plate 22, the slide rail 24 slidably connected with the first slide bar 25 is opened on the first fixing rod 4, the screw rod 26 is installed 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 slider 30 is symmetrically installed at the top end of the screw rod 26, the slide rail 31 adapted to the first slider 30 is installed on the inner wall of the rotating cylinder 29, and the liquid level marking line 21 located on one side of the liquid level sensor 23 is installed on the outer wall of the needle cylinder 1;
the rotating cylinder 29 rotates to drive the sliding rail 31 to rotate, the screw rod 26 can be rotated through the clamping connection relationship 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 relationship between the screw rod 26 and the first sliding rod 25 and the sliding connection relationship between the first sliding rod 25 and the sliding rail 24 in a matching manner, 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 adjusted to move to the injection height of the contrast medium, after the contrast medium reaches the position of the liquid level sensor 23, the indicator lamp can be turned on, and the injection operation of the contrast medium is stopped.
Fourth embodiment, on the basis of the first 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 formed in the fixing plate 5, the internal portion of the first accommodating groove 41 is movably connected with the internal thread cylinder 42, the rotating shaft 45 extending into the first accommodating groove 41 is rotatably installed 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, a second slider 43 slidably connected with the first accommodating groove 41 is arranged at one end of the internal thread cylinder 42, the clamping rod 44 extending into the opening 6 is arranged at one end of the second slider 43, the clamping rod 44 is connected with the outer wall of the syringe 1, the clamping rod 44 is communicated with the second slider 43 through a through hole 48, 46 is symmetrically arranged on the inner wall of the first accommodating groove 41, and a stabilizing groove 47 is formed in the internal thread cylinder 42 and sleeved outside the clamping rod 46;
the staff rotates rotation axis 45, through rotation axis 45 and the threaded connection relation of interior thread section of thick bamboo 42 and the sliding connection relation of cooperation stabilizer bar 46 and stable groove 47, can make interior thread section of thick bamboo 42 remove in the outside of rotation axis 45, interior thread section of thick bamboo 42 can drive second slider 43 and slide at the inner wall of holding tank 41, and then second slider 43 can drive supporting rod 44 and remove, be convenient for adjust the interval of two supporting rod 44, make things convenient for two supporting rod 44 to carry out the centre gripping to cylinder 1, first dead lever 4 has been improved, fixed plate 5 and level sensor 23's installation stability, and then level sensor 23's regulation stability has been improved, the effectual injection precision that improves the contrast medium.
Fifth embodiment, on the basis of the first embodiment, as shown in fig. 1, 3, 4, 5, and 6, the gear type air extracting mechanism includes a gear type transmission set and an air extracting set, the gear type transmission set includes a base 36, a second bevel gear 37, a gear 38, a collar 39, and a toothed plate 40, a base 36 connected to a side wall of the first fixing rod 4 is disposed above the double-shaft motor 28, the base 36 is rotatably mounted with a second bevel gear 37 and the gear 38, the second bevel gear 37 is located at one side of the gear 38, the collars 39 are movably sleeved outside the two first fixing rods 4, the collar 39 is connected to the air extracting set, the toothed plate 40 meshed with the gear 38 is disposed on an inner wall of the collar 39, the two accommodating grooves 49 are disposed at top ends of the first fixing rods 4, the two accommodating grooves 49 are communicated with the through holes 48, the air extracting set includes a third slider 50, a second sliding rod 51, an engaging rod 52, and a moving groove 53, a third slider 50 is slidably disposed inside the accommodating rod 50, a bottom end of the third slider 50 is disposed on a side wall of the first fixing rod 4, and an engaging groove 52 is slidably connected to an inner wall of the engaging rod 52;
through the meshing connection relation of a conical gear 35 and a 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, then the connecting rod 52 can drive the second sliding rod 51 to slide inside the accommodating groove two 49, then the third sliding block 50 can suck the 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 regulation stability of the liquid level sensor 23 is further improved, the deviation after the position regulation of the liquid level sensor 23 is avoided, and the injection accuracy of the contrast medium is further improved.
The working principle is as follows: when the injection needle works, a worker penetrates through the opening 6 and places the needle cylinder 1 into the supporting groove 7, so that the injection needle 2 is installed at the top end of the needle cylinder 1, the double-shaft motor 28 is started, the double-shaft motor 28 drives the rotary cylinder 29 and the first conical gear 35 to rotate, the electric push rod 32 is started, the electric push rod 32 drives the second installing plate 27 to slide, the second installing plate 27 drives the second limiting block 34 to slide in the second limiting groove 33, 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 relationship 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, the connecting rod 52 drives the second sliding rod 51 to slide inside 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 can move outside the rotating shaft 45 through the threaded connection relationship between the rotating shaft 45 and the internal thread cylinder 42 and the sliding connection relationship between the matching stabilizing rod 46 and the stabilizing groove 47, the internal thread cylinder 42 can drive the second sliding block 43 to slide on the inner wall of the first accommodating groove 41, and the second sliding block 43 can drive the clamping rods 44 to move, so that the distance between the two clamping rods 44 can be conveniently adjusted, and the two clamping rods 44 can conveniently clamp the needle cylinder 1; then the double-shaft motor 28 is controlled to rotate reversely, 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 gas at the joint of the clamping rod 44 and the needle cylinder 1 is sucked through the stabilizing groove 47, so that 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, so that the double-shaft motor 28 drives the first conical gear 35 to move downwards, the first conical gear 35 is disconnected from the gear 38, the double-shaft motor 28 drives the rotary cylinder 29 to move downwards, the rotary cylinder 29 drives the slide rail 31 to move downwards, the slide rail 31 is sleeved outside the first slide block 30, the first slide block 30 is clamped with the slide rail 31, meanwhile, the double-shaft motor 28 rotates to drive the rotary cylinder 29 to rotate, the rotary cylinder 29 rotates to drive the slide rail 31 to rotate, the lead screw 26 is rotated through the clamping relation between the slide rail 31 and the first slide block 30, the first slide bar 25 can slide on the slide rail 24 through the threaded connection relation between the lead screw 26 and the first slide bar 25 and the sliding connection relation between the first slide bar 25 and the slide rail 24, the first slide bar 25 can drive the first mounting plate 22 to move, the first mounting plate 22 can drive the liquid level sensor 23 to move, and further adjust the liquid level sensor 23 to move to the suction height of the contrast medium;
then, the operator pulls the plunger 19, and makes the spring 20 in a compressed state, and further pulls the push cylinder 8 upwards, the push cylinder 8 will drive the piston 10 to move upwards in the syringe 1, and the contrast medium is sucked into the syringe 1 through the injection needle 2, then according to the position of the liquid level sensor 23, after the sucked contrast medium reaches the position of the liquid level sensor 23, the indicator light is turned on, and further the sucking operation of the contrast medium is stopped, so that the accuracy of the sucking amount of the contrast medium is improved, then, during the injection, the operator pushes down the rotating button 15, the rotating button 15 will drive the push cylinder 8 to move downwards through the action of the rotating rod 14 and the screw block 16, the push cylinder 8 will drive the piston 10 to move downwards, so that the contrast medium is discharged through the injection needle 2, when the rotating button 15 moves to be flush with the insertion rod 19, the pulling of the insertion rod 19 is released, under the reverse action force of the spring 20, one end of the insertion rod 19 will extend into the groove 17, then, under the reverse action force of the spring 20, the rotating button 15 will rotate, so that one end of the insertion rod 19 will extend into the groove, and further, the connection relationship of the first rotating button 15 will be improved, and the contrast medium injection quantity will be increased, and the contrast medium will not be caused by the first push cylinder 8 will be slowly moved, and the injection stopper 16, the injection is not high, and the quality of the injection is improved, and the contrast medium is not caused, the injection piston 10 is not caused by the injection.
It should be noted that, in this document, 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. Also, 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 appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A high-pressure injector comprising a barrel (1), characterized in that: 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) which is sleeved at the bottom end of the needle cylinder (1), the top end of the supporting plate (3) is symmetrically provided with first fixing rods (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) which is sleeved at the outer part of the needle cylinder (1), the inner wall of the opening (6) is symmetrically provided with a clamping mechanism which is connected with the needle cylinder (1), the top end of the needle cylinder (1) is provided with a through hole I (9), the inner part of the needle cylinder (1) is inserted with a push cylinder (8) which penetrates through the through hole I (9), the bottom end of the push 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 through hole I (9) is symmetrically provided with a first limiting block (11), the outer wall of the push cylinder (8) is provided with a first limiting groove (12) which is in sliding connection with a gear type limiting groove (11) which is connected with a first limiting mechanism (11), the first limiting mechanism (22) which is arranged between the inner wall of a first limiting mechanism, one side of a first fixing rod (4) which is connected with a first limiting mechanism, one of a first limiting mechanism (22) which is arranged, and a first fixing rod (22) which is arranged, one side of a first limiting mechanism which is connected with a first limiting mechanism which is arranged, and a first fixing mechanism (22) which is arranged, the first mounting plate (22) is connected with the liquid level adjusting mechanism, and the liquid level adjusting mechanism is connected with the gear type air exhaust 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 bevel gear (35), the first bevel gear (35) is connected with a gear type air suction 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, and the second mounting plate (27) is connected with the pusher.
2. A high pressure syringe according to claim 1, wherein: the impeller comprises an electric push rod (32), a second limiting groove (33) and a second limiting block (34), the top of one side of the second mounting plate (27) is provided with the second limiting block (34), the side wall of the first fixing rod (4) is provided with the second limiting groove (33) which is connected with the second limiting block (34) in a sliding mode, and the electric push rod (32) which is connected with the bottom end of the second mounting plate (27) is installed on one side of the first fixing rod (4).
3. A high pressure syringe according to claim 1, wherein: fine-tuning includes opening two (13), dwang (14), rotation button (15), screw block (16), recess (17), second dead lever (18), inserted bar (19) and spring (20), opening two (13) have been seted up on the top of push away section of thick bamboo (8), the inside interlude of push away section of thick bamboo (8) has dwang (14), the inside of opening two (13) is run through to the one end of dwang (14), the top of dwang (14) is equipped with rotation button (15), the outer wall of rotation button (15) is seted up recess (17), the bottom of dwang (14) is equipped with screw block (16) with push away section of thick bamboo (8) inner wall threaded connection, the top symmetry of cylinder (1) is equipped with second dead lever (18), inserted bar (19) have all been interlude at the top of second dead lever (18), the one end of inserted bar (19) extends to the inside of recess (17), the cover is equipped with spring (20) of being connected with second dead lever (18) lateral wall on inserted bar (19).
4. A high pressure syringe according to claim 1, wherein: the liquid level adjusting mechanism comprises a slide rail (24), a first slide bar (25), a lead screw (26), a first sliding block (30) and a slide rail (31), the first slide bar (25) is installed on one side of a first installation plate (22), the slide rail (24) connected with the first slide bar (25) in a sliding mode is arranged on a first fixing rod (4), the lead screw (26) is arranged on the top end of a supporting plate (3), the first slide bar (25) is sleeved on the outer portion of the lead screw (26), the lead screw (26) is connected with the first slide bar (25) in a threaded mode, the first sliding block (30) is symmetrically arranged on the top end of the lead screw (26), and the slide rail (31) matched with the first sliding block (30) is arranged on the inner wall of a rotating cylinder (29).
5. 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 on one side of the liquid level sensor (23).
6. A high pressure syringe according to claim 1, wherein: fixture includes holding tank one (41), interior thread section of thick bamboo (42), second slider (43), supporting rod (44) and rotation axis (45), holding tank one (41) have been seted up to the inside symmetry of fixed plate (5), the inside swing joint of holding tank one (41) has interior thread section of thick bamboo (42), the outer wall of fixed plate (5) is rotated and is installed and is extended to inside rotation axis (45) of holding tank one (41), rotation axis (45) alternate in the inside of interior thread section of thick bamboo (42), and interior thread section of thick bamboo (42) and rotation axis (45) threaded connection, the one end of interior thread section of thick bamboo (42) is equipped with second slider (43) with holding tank one (41) sliding connection, the one end of second slider (43) is equipped with supporting rod (44) that extend to inside opening (6), supporting rod (44) and cylinder (1) outer wall connection, be linked together through-hole (48) between supporting rod (44) and second slider (43).
7. The high pressure syringe of claim 6, wherein: the inner wall of the first accommodating groove (41) is symmetrically provided with stabilizing bars (46), and the inner thread cylinder (42) is provided with a stabilizing groove (47) sleeved outside the stabilizing bars (46).
8. A high pressure syringe according to claim 1, wherein: the gear formula mechanism of bleeding includes gear formula transmission group and the group of bleeding, gear formula transmission group includes base (36), conical gear two (37), gear (38), lantern ring (39) and pinion rack (40), the top of biaxial motor (28) is equipped with base (36) of being connected with first dead lever (4) lateral wall, rotate on base (36) and install conical gear two (37) and gear (38), conical gear two (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) and the group link of bleeding, the inner wall of lantern ring (39) is equipped with pinion rack (40) of being connected with gear (38) meshing.
9. The high pressure syringe of claim 6, wherein: and a second accommodating groove (49) is formed in the top end of the first fixing rod (4), and the second accommodating groove (49) is communicated with the through hole (48).
10. A high pressure syringe according to claim 8, wherein: the air exhaust group comprises a third slider (50), a second sliding rod (51), a connecting rod (52) and a moving groove (53), the third slider (50) is arranged in the second accommodating groove (49) in a sliding mode, the second sliding rod (51) is arranged at the bottom end of the third slider (50), the moving groove (53) is formed in the side wall of the first fixing rod (4), the connecting rod (52) is arranged on one side of the second sliding rod (51) and connected with the moving groove (53) in a sliding mode, 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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| CN115154763A true CN115154763A (en) | 2022-10-11 |
| CN115154763B 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 (6)
| 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 |
| US20030105430A1 (en) * | 2001-11-30 | 2003-06-05 | Elan Pharma International Limited Wil House | Automatic injector |
| 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 |
-
2022
- 2022-08-22 CN CN202211005009.2A patent/CN115154763B/en active Active
Patent Citations (6)
| 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 |
| US20030105430A1 (en) * | 2001-11-30 | 2003-06-05 | Elan Pharma International Limited Wil House | Automatic injector |
| 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 |
|---|---|
| CN115154763B (en) | 2024-01-26 |
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