CN111939389A - Anesthetic liquid continuous quantitative injection device - Google Patents
Anesthetic liquid continuous quantitative injection device Download PDFInfo
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- CN111939389A CN111939389A CN202010908263.8A CN202010908263A CN111939389A CN 111939389 A CN111939389 A CN 111939389A CN 202010908263 A CN202010908263 A CN 202010908263A CN 111939389 A CN111939389 A CN 111939389A
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- box body
- anesthetic liquid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31535—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
-
- 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
- A61M5/31545—Setting modes for dosing
- A61M5/31546—Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- 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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M2005/31588—Constructional features or modes of drive mechanisms for piston rods electrically driven
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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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/048—Anaesthetics
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3306—Optical measuring means
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8237—Charging means
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 medical instruments and discloses an anesthetic liquid continuous and quantitative injection device which comprises an injection tube, an injection head, a connecting rod and a piston, wherein the piston is connected inside the injection tube in a sliding manner, the injection head is fixed at the bottom of the injection tube, the connecting rod is fixed at the center of the upper surface of the piston, and servo motors are symmetrically fixed on the upper surface of the piston; drive the drive wheel through servo motor and rotate, thereby can drive piston downstream, the drive wheel rotates simultaneously and can drive the rotation wheel rotation on the encoder, the encoder can give the AD converter with drive wheel pivoted signal transmission, after through the AD converter conversion, give again and calculate the processing by the singlechip, reach the volume of the anesthetic of injection, after the volume of the anesthetic of injection equals predetermined volume, relay control servo motor stall, when needs inject once more, medical personnel paste on photoelectric sensor with the finger, can continue to inject this moment.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a continuous and quantitative anesthetic liquid injection device.
Background
The medical apparatus refers to instruments, equipment, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related articles which are directly or indirectly used for the human body, and comprises required computer software for diagnosing, preventing, monitoring, treating or relieving diseases; diagnosis, monitoring, treatment, mitigation, or functional compensation of injury; examination, replacement, regulation or support of a physiological structure or physiological process; support or maintenance of life; controlling pregnancy; by examining a sample from a human body, information is provided for medical or diagnostic purposes.
When a patient is operated or treated, an anaesthetist usually anaesthetizes the patient through an injection device to relieve the pain of the patient, but the existing injection device cannot accurately inject the anaesthetics to the patient in a continuous and quantitative mode, only can control the injection amount by the anaesthetist, and once deviation occurs, life danger is easily brought to the patient.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a continuous and quantitative injection device for anesthetic liquid, which solves the problems that the prior injection device can not accurately inject anesthetic into a patient in a continuous and quantitative manner, only an anesthesiologist can control the injection amount, and once deviation occurs, life danger is easily brought to the patient.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a continuous quantitative anesthetic injection device comprises an injection tube, an injection head, a connecting rod and a piston, wherein the piston is connected inside the injection tube in a sliding manner, the injection head is fixed at the bottom of the injection tube, the connecting rod is fixed at the center of the upper surface of the piston, servo motors are symmetrically fixed on the upper surface of the piston, transmission wheels are fixed at the output ends of the two servo motors, the opposite sides of the two transmission wheels are attached to the inner side wall of the injection tube, an encoder is fixed at the position, close to the left side of the piston, of the servo motor, a rotating wheel is fixed at the output end of the encoder, the outer side wall of the rotating wheel is attached to the outer side wall of the left transmission wheel, the top of the connecting rod extends to the upper portion of the injection tube and is fixedly provided with a box body, a display screen is fixed on the upper surface of the box body, and the upper surface of the box body is located, from left to right be fixed with a plurality of operating button, the upper surface of box body is located a plurality ofly operating button's below is fixed with photoelectric sensor, just the inside of box body is fixed with the circuit board, the upper surface of circuit board is fixed with the singlechip, just the upper surface of circuit board is located the left side below of singlechip is fixed with the relay, the upper surface of circuit board is located the right side below of singlechip is fixed with the AD converter, the inside of box body is fixed with the battery.
Preferably, the relay, the AD converter with the display screen all with singlechip electric connection, operating button, photoelectric sensor with the encoder all with AD converter electric connection, servo motor with relay electric connection.
Preferably, the piston includes the cock body, the surface parcel of cock body has the rubber layer, just the both sides bottom of cock body all is fixed with pressure sensor, pressure sensor with AD converter electric connection.
Preferably, the connecting rod is of a hollow structure with an opening at the top and the bottom, and the plug body is of a hollow structure with an opening at the top.
Preferably, an ear plate with a hole in the middle is fixed at the top of the outer side wall of the injection cylinder, the upper surface of the ear plate is flush with the upper surface of the injection cylinder, and the lower surface of the ear plate is symmetrically fixed with finger rings.
Preferably, a USB charging port is fixed on the outer side wall of the box body, a charging controller is fixed on the upper surface of the circuit board and located below the storage battery, the USB charging port is electrically connected with the charging controller, and the charging controller is electrically connected with the storage battery.
Preferably, the outer side wall of the injection head is sleeved with a protective sleeve, and the protective sleeve is made of rubber.
Preferably, a sealing gasket is fixed on the lower surface of the box body, and the distance between the lower surface of the sealing gasket and the upper surface of the injection cylinder is equal to the distance between the bottom of the piston and the bottom of the injection cylinder.
Preferably, the diameter of the gasket is larger than the outer diameter of the syringe.
(III) advantageous effects
The invention provides a continuous and quantitative anesthetic liquid injection device, which has the following beneficial effects:
(1) the device can drive the driving wheel to rotate through the servo motor, so that the piston can be driven to move downwards, meanwhile, the driving wheel can drive the rotating wheel on the encoder to rotate, the encoder can send a signal of the rotation of the driving wheel to the AD converter, the signal is converted by the AD converter and then is subjected to calculation processing by the single chip microcomputer, the amount of the anesthetic to be injected is obtained, when the amount of the anesthetic to be injected is equal to the preset amount, the servo motor is controlled by the relay to stop running, when the anesthetic needs to be injected again, a medical worker can attach fingers to the photoelectric sensor, the injection can be continued at the moment, when the amount of the anesthetic to be injected is equal to the preset amount, the servo motor stops running again, compared with the existing injection device, the device can accurately realize quantitative injection, and is more convenient for the medical worker to operate.
(2) When the injection device is used, medical staff can respectively pass fingers through the two finger rings, so that the phenomenon that the device easily falls off from the hand during injection can be avoided, and the medical staff can better operate the injection device to perform quantitative injection on a patient.
(3) When the anesthetic injection device is used, after anesthetic injection is completed, the piston is located at the bottommost part of the injection tube, the pressure sensor on the piston senses a pressure signal, the signal is converted by the AD converter and then sent to the single chip microcomputer for processing, then the single chip microcomputer enables the relay to control the servo motor to stop running, the servo motor is protected to the greatest extent, and the servo motor is prevented from being burnt.
(4) When the injection device is not used, the piston is positioned at the bottommost part of the injection tube, the protective sleeve is sleeved on the injection head, the sealing gasket on the box body can be tightly attached to the upper surface of the injection tube, the whole device can be sealed through the protective sleeve and the sealing gasket, and external foreign matters are prevented from entering the device, so that the device is prevented from being polluted.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the case according to the present invention;
fig. 5 is a schematic sectional view showing a piston according to the present invention.
In the figure: 1. an injection tube; 2. a ring; 3. an ear plate; 4. a box body; 5. a display screen; 6. an operation button; 7. a photosensor; 8. a USB charging port; 9. a gasket; 10. an injection head; 11. a protective sleeve; 12. a piston; 13. a connecting rod; 14. a driving wheel; 15. a servo motor; 16. a rotating wheel; 17. an encoder; 18. a circuit board; 19. a relay; 20. a single chip microcomputer; 21. an AD converter; 22. a storage battery; 23. a charge controller; 24. a pressure sensor; 25. a rubber layer; 26. a plug body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1 to 5, the present invention provides a technical solution: a continuous quantitative anesthetic injection device comprises an injection tube 1, an injection head 10, a connecting rod 13 and a piston 12, wherein the piston 12 is connected inside the injection tube 1 in a sliding manner, the bottom of the injection tube 1 is fixedly provided with the injection head 10, the connecting rod 13 is fixed at the center of the upper surface of the piston 12, servo motors 15 are symmetrically fixed on the upper surface of the piston 12, output ends of the two servo motors 15 are respectively fixedly provided with a driving wheel 14, opposite sides of the two driving wheels 14 are respectively attached to the inner side wall of the injection tube 1, a position of the piston 12, which is close to the servo motor 15 on the left side, is fixedly provided with an encoder 17, an output end of the encoder 17 is fixedly provided with a rotating wheel 16, the outer side wall of the rotating wheel 16 is attached to the outer side wall of the driving wheel 14 on the left side, the top of the connecting rod 13 extends to the upper portion of the injection tube 1 and is fixedly provided with a box body, a plurality of operation buttons 6 are fixed from left to right, a photoelectric sensor 7 is fixed on the upper surface of the box body 4 below the operation buttons 6, a circuit board 18 is fixed in the box body 4, a single chip microcomputer 20 is fixed on the upper surface of the circuit board 18, a relay 19 is fixed on the upper surface of the circuit board 18 below the single chip microcomputer 20, an AD converter 21 is fixed on the upper surface of the circuit board 18 below the single chip microcomputer 20, a storage battery 22 is fixed in the box body 4, when the device is used, anesthetic is firstly sucked into the injection tube 1 through the device, then the needle head is connected to the injection head 10 and is inserted into the body of a patient, then the amount of anesthetic to be injected each time is input through the operation buttons 6 on the box body 4, after the input is finished, two servo motors 15 are started, the servo motors 15 drive a drive wheel 14 to rotate, so that the piston 12 can be driven to move downwards, meanwhile, the rotation of the driving wheel 14 drives the rotation wheel 16 on the encoder 17 to rotate, the encoder 17 sends a signal of the rotation of the driving wheel 14 to the AD converter 21, the signal is converted by the AD converter 21 and then sent to the singlechip 20 for calculation processing to obtain the amount of the anesthetic to be injected, when the amount of the anesthetic to be injected is equal to the preset amount, the singlechip 20 enables the relay 19 to control the servo motor 15 to stop running, when the patient needs to inject again, the medical personnel attach fingers to the photoelectric sensor 7, the photoelectric sensor 7 sends the signal to the AD converter 21 for conversion and then sends the signal to the singlechip 20 for processing, then the singlechip 20 enables the relay 19 to control the servo motor 15 to continue running, at the moment, the injection can continue to be injected, when the amount to be injected is equal to the preset amount again, the singlechip 20 enables the relay 19 to control the servo motor 15 to stop running again, and the continuous quantitative injection can be realized by, compared with the existing injection device, the device can accurately realize quantitative injection and is more convenient for medical staff to operate.
Further, the relay 19, the AD converter 21 and the display screen 5 are electrically connected with the single chip microcomputer 20, the operation button 6, the photoelectric sensor 7 and the encoder 17 are electrically connected with the AD converter 21, and the servo motor 15 is electrically connected with the relay 19.
Further, the piston 12 includes the cock body 26, the surface parcel of cock body 26 has the rubber layer 25, and the both sides bottom of cock body 26 all is fixed with pressure sensor 24, pressure sensor 24 and AD converter 21 electric connection, the rubber layer 25 can make the leakproofness between piston 12 and the injection tube 1 better, and after the injection finishes, piston 12 is located the bottommost of injection tube 1 this moment, and pressure sensor 24 can monitor the pressure model, and give this signal AD converter 21 and convert, give singlechip 20 again and handle, then singlechip 20 can make relay 19 control servo motor 15 stop the operation, servo motor 15 has been protected to a great extent, avoid servo motor 15 to be burnt out.
Further, the connecting rod 13 is a hollow structure with openings at the top and the bottom, and the plug body 26 is a hollow structure with an opening at the top, so that wiring is convenient.
Further, the lateral wall top of injection tube 1 is fixed with otic placode 3 of middle part trompil, and the upper surface of otic placode 3 flushes with the upper surface of injection tube 1, and the lower surface symmetry of otic placode 3 is fixed with ring 2, and medical personnel can pass two rings 2 with the finger respectively to can avoid the device to take place the condition that drops from the hand easily in the injection, messenger medical personnel that can be better operate the device, and carry out quantitative injection to the patient.
Further, the outer side wall of the box body 4 is fixed with a USB charging port 8, the upper surface of the circuit board 18 is located below the storage battery 22 and is fixed with a charging controller 23, the USB charging port 8 is electrically connected with the charging controller 23, the charging controller 23 is electrically connected with the storage battery 22, the storage battery 22 can be charged through the USB charging port 8, meanwhile, the storage battery 22 can be protected by the charging controller 23, and the storage battery 22 is prevented from being damaged.
Further, the outer side wall of the injection head 10 is sleeved with a protective sleeve 11, the protective sleeve 11 is made of rubber, when the injection head is not used, the protective sleeve 11 can be sleeved on the injection head 10, and external foreign matters are prevented from entering the injection head 10, so that pollution is caused.
Further, the lower fixed surface of box body 4 has sealed 9, and the distance between sealed 9 lower surfaces and the 1 upper surface of injection tube equals the distance between 12 bottoms of piston to 1 bottom of injection tube, and when not using, piston 12 is located the bottom of doing of injection tube 1 this moment, and sealed 9 on the box body 4 can closely laminate with the upper surface of injection tube 1 simultaneously to can avoid external foreign matter to enter into injection tube 1, thereby cause the pollution to whole device.
Furthermore, the diameter of the sealing gasket 9 is larger than the outer diameter of the injection cylinder 1, so that the injection cylinder 1 can be better sealed.
In conclusion, the working process of the invention is as follows: when in use, firstly, anesthetic is sucked into the injection tube 1 through the device, then the needle head is connected to the injection head 10, the needle head is inserted into the body of a patient, then the amount of anesthetic to be injected each time is input through the operation buttons 6 on the box body 4, after the input is finished, the two servo motors 15 are started, the servo motors 15 drive the transmission wheel 14 to rotate, so as to drive the piston 12 to move downwards, meanwhile, the transmission wheel 14 rotates to drive the rotating wheel 16 on the encoder 17 to rotate, the encoder 17 sends the rotating signal of the transmission wheel 14 to the AD converter 21, after the conversion through the AD converter 21, the singlechip 20 carries out calculation processing to obtain the amount of the anesthetic to be injected, when the amount of the anesthetic to be injected is equal to the preset amount, the singlechip 20 enables the relay 19 to control the servo motors 15 to stop operation, when the anesthetic needs to be injected again, medical personnel paste on photoelectric sensor 7 with the finger, photoelectric sensor 7 gives AD converter 21 with signal transmission and converts, give the singlechip 20 again and handle, then singlechip 20 can make relay 19 control servo motor 15 continue to operate, can continue to inject this moment, after the volume of injecting equals predetermined volume once more, singlechip 20 makes relay 19 control servo motor 15 stop motion once more, repeat above-mentioned step and can realize continuous ration injection, compare in current injection device, the device can be accurate realization ration injection, and make things convenient for medical personnel to operate more.
It is noted that, herein, relational terms such as first and second, and the like may be 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 (9)
1. The utility model provides a continuous ration injection device of anesthetic liquid, includes injection tube (1), injection head (10), connecting rod (13) and piston (12), its characterized in that: the injection device is characterized in that the piston (12) is connected to the interior of the injection cylinder (1) in a sliding manner, the injection head (10) is fixed at the bottom of the injection cylinder (1), the connecting rod (13) is fixed at the center of the upper surface of the piston (12), servo motors (15) are symmetrically fixed on the upper surface of the piston (12), transmission wheels (14) are fixed at the output ends of the two servo motors (15), the opposite sides of the two transmission wheels (14) are respectively attached to the inner side wall of the injection cylinder (1), an encoder (17) is fixed at the position, close to the left side, of the piston (12) and close to the servo motor (15), a rotating wheel (16) is fixed at the output end of the encoder (17), the outer side wall of the rotating wheel (16) is attached to the outer side wall of the transmission wheel (14) at the left side, and the top of the connecting rod (13) extends to, and be fixed with box body (4), the upper surface of box body (4) is fixed with display screen (5), just the upper surface of box body (4) is located the below of display screen (5), from left to right is fixed with a plurality of operating button (6), the upper surface of box body (4) is located a plurality of the below of operating button (6) is fixed with photoelectric sensor (7), just the inside of box body (4) is fixed with circuit board (18), the upper surface of circuit board (18) is fixed with singlechip (20), just the upper surface of circuit board (18) is located the left side below of singlechip (20) is fixed with relay (19), the upper surface of circuit board (18) is located the right side below of singlechip (20) is fixed with AD converter (21), the inside of box body (4) is fixed with battery (22).
2. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: relay (19), AD converter (21) with display screen (5) all with singlechip (20) electric connection, operating button (6) photoelectric sensor (7) with encoder (17) all with AD converter (21) electric connection, servo motor (15) with relay (19) electric connection.
3. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: the piston (12) comprises a plug body (26), the outer surface of the plug body (26) is wrapped by a rubber layer (25), pressure sensors (24) are fixed to the bottoms of the two sides of the plug body (26), and the pressure sensors (24) are electrically connected with the AD converter (21).
4. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 3, wherein: the connecting rod (13) is of a hollow structure with openings at the top and the bottom, and the plug body (26) is of a hollow structure with an opening at the top.
5. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: the lateral wall top of injection tube (1) is fixed with otic placode (3) of middle part trompil, the upper surface of otic placode (3) with the upper surface of injection tube (1) flushes, just the lower surface symmetry of otic placode (3) is fixed with ring (2).
6. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: the lateral wall of box body (4) is fixed with USB and charges mouth (8), the upper surface of circuit board (18) is located the below of battery (22) is fixed with charge controller (23), USB charge mouth (8) with charge controller (23) electric connection, charge controller (23) with battery (22) electric connection.
7. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: the outer side wall of the injection head (10) is sleeved with a protective sleeve (11), and the protective sleeve (11) is made of rubber.
8. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 1, wherein: a sealing gasket (9) is fixed on the lower surface of the box body (4), and the distance between the lower surface of the sealing gasket (9) and the upper surface of the injection cylinder (1) is equal to the distance between the bottom of the piston (12) and the bottom of the injection cylinder (1).
9. The continuous quantitative anesthetic liquid injection apparatus as claimed in claim 8, wherein: the diameter of the sealing gasket (9) is larger than the outer diameter of the injection cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908263.8A CN111939389A (en) | 2020-09-02 | 2020-09-02 | Anesthetic liquid continuous quantitative injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908263.8A CN111939389A (en) | 2020-09-02 | 2020-09-02 | Anesthetic liquid continuous quantitative injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111939389A true CN111939389A (en) | 2020-11-17 |
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| CN202010908263.8A Pending CN111939389A (en) | 2020-09-02 | 2020-09-02 | Anesthetic liquid continuous quantitative injection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112932556A (en) * | 2021-04-02 | 2021-06-11 | 吉林大学第一医院 | Intelligent auxiliary amniocentesis system |
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