CN215653120U - Adjustable liquid medicine continuous quantitative injector - Google Patents

Abstract

The utility model relates to an adjustable continuous quantitative injector for liquid medicine, which comprises a cylinder body and a shell, wherein the right end of the cylinder body is connected with the left end of the shell, a needle head is arranged on the right end of the cylinder body, a cylinder sleeve is arranged on the outer part of the cylinder body, a plunger is arranged in the cylinder body, a scale window is arranged on the outer wall of the shell, a left sliding chute, a right sliding chute, a mounting groove, a plunger loop bar and a push rod are arranged in the shell, the right end of the plunger loop bar penetrates through the right end of the cylinder body and the left end of the shell and is connected with the plunger, a left sliding block and a right sliding block are oppositely arranged on the left end of the plunger loop bar, the left end of the push rod penetrates through the left end of the shell and extends to the outer part of the shell, a rotary disk is arranged on the left half section of the push rod, a plurality of dosage numbers are sequentially pasted on the periphery of the rotary disk, the dosage numbers correspond to the scale window, and the right half section of the push rod is matched with an accommodating threaded hole. The utility model effectively solves the problems that the traditional injector does not have a quantitative injection function, has poor stability and compliance, can not be used for multiple times of continuous injection and repeated use, and can not meet the use requirements of medical personnel.

Description

Adjustable liquid medicine continuous quantitative injector

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an adjustable liquid medicine continuous quantitative injector.

Background

An injector is a common medical device, and is commonly used for injecting liquid medicine into a patient body in an intramuscular injection mode to treat the patient. Currently, conventional syringes include a syringe and a piston assembly located within the syringe, and the liquid drug within the syringe is forced out of the syringe and injected into the patient's subcutaneous, intramuscular, vascular, or other tissue organ by pushing on a plunger assembly.

However, the conventional syringe has the following disadvantages in use: 1. the injection device does not have the function of quantitative injection, cannot inject the liquid medicine into a human body, is easy to inject excessive liquid medicine, and cannot accurately control the injection dosage, so that the adverse effect on the body of a patient is caused, and the curative effect is influenced; 2. the injection can not be continuously injected for many times, can not be used repeatedly, and can be quantitatively injected for many times, the times and time for sucking the liquid medicine can be increased due to the need of sucking the quantitative liquid medicine for many times, so that the whole injection process is very complicated, and the possibility of medicament pollution can be increased; 3. stability and compliance are relatively poor, the syringe can not be according to clinical requirement dosing, the needs of syringe formula syringe are with finger centre gripping and crowded pushing away, need great hard, and inconvenient carry out steady quantitative injection, all rely on hand strength to promote during injection at every turn, and need control medicine flow when artifical injection, it is very difficult to control, the flow is often unstable, volatility is very big, it produces adverse reaction to make patient very easily, can cause danger to patient's life even, bring very big inconvenience for medical staff, medical staff's user demand can't be satisfied.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable liquid medicine continuous quantitative injector aiming at the defects of the prior art, and the adjustable liquid medicine continuous quantitative injector effectively solves the problems that the traditional injector does not have the function of quantitative injection, has poor stability and compliance, cannot carry out continuous injection and repeated use for many times and cannot meet the use requirements of medical staff due to the matched design of a cylinder body, a shell, a needle head, a cylinder sleeve, a push rod, a plunger sleeve rod and a plunger.

The technical scheme adopted by the utility model is as follows:

a regulating type continuous quantitative injector for liquid medicine comprises a cylinder body and a shell, wherein the right end of the cylinder body is connected with the left end of the shell, the right end of the cylinder body is detachably provided with a needle head, the outside of the cylinder body is detachably provided with a cylinder sleeve, the inside of the cylinder body is provided with a plunger which is in sliding connection with the cylinder sleeve, the outer wall of the shell is provided with a scale window, the inside of the shell is provided with a left sliding chute, a right sliding chute, a mounting groove, a plunger loop bar and a push rod, the left sliding chute and the right sliding chute are relatively embedded on the inner wall of the shell, the mounting groove is positioned on the right side of the left sliding chute/the right sliding chute and is close to the left end of the shell, the mounting groove is communicated with the scale window, the right end of the plunger loop bar penetrates through the right end of the cylinder body and the left end of the shell and is connected with the plunger, the middle part of the plunger loop bar is provided with a containing threaded hole, the left sliding block and the right sliding block are relatively arranged on the left sliding chute, the left end of the push rod penetrates through the left end of the shell and extends to the outside of the shell, a circular rotating disk is arranged on the left half section of the push rod, the rotating disk is embedded in the mounting groove, a plurality of dosage numbers are sequentially pasted on the periphery of the rotating disk, the dosage numbers correspond to the scale windows, and the right half section of the push rod is matched with the accommodating threaded hole of the plunger loop bar.

Furthermore, a liquid level window is arranged on the barrel body.

Furthermore, a clamping rod is arranged on the barrel sleeve.

Furthermore, an internal thread is arranged on the barrel sleeve, a corresponding external thread is arranged on the barrel body, and the external thread is in threaded connection with the internal thread.

Furthermore, a knob is arranged at the left end of the push rod, and convex ridges are arranged on the periphery of the knob.

Furthermore, an external thread is arranged on the right half section of the push rod and is in threaded connection with an internal thread of the accommodating threaded hole.

Further, the dosage number is 0.1-5.0 ml, and adjacent dosage numbers are separated by 0.1ml units.

Furthermore, be equipped with the reinforcement piece in the casing, the reinforcement piece is located mounting groove and left spout/has between the spout, and the reinforcement piece rotates with the left half section of push rod to be connected.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model has simple structure, reasonable structure, convenient use, low manufacturing cost, safety and reliability, and effectively solves the problems that the traditional injector does not have the function of quantitative injection, has poor stability and compliance, inaccurate injection dosage control, can not be used continuously and repeatedly for many times and can not meet the use requirements of medical personnel through the matching design of the cylinder body, the shell, the needle head, the cylinder sleeve, the push rod, the plunger sleeve rod and the plunger.

2. The syringe needle is connected with the barrel dismantlement formula, and the syringe needle can be dismantled from the injection barrel, and the convenience is installed new syringe needle and is gone, can use the barrel repeatedly to, the puncture syringe needle of removable different specifications brings very big facility for medical staff.

3. The utility model can be continuously injected for a plurality of times by medical staff, and the injection dosage is easy to master and control, accurate and quantitative, convenient to carry and strong in stability and compliance.

4. The push rod rotates in the casing, and the right half section of push rod cooperatees with the screw hole that holds of plunger loop bar for the push rod passes through the plunger loop bar and drives the plunger and remove in the barrel, and then the plunger extrudees the liquid medicine in the barrel, and injects to patient internally through the syringe needle, and this operation process push rod buffering rotates, and the plunger loop bar drives plunger steady movement, prevents that injection speed is too fast, leads to patient to appear uncomfortable symptom.

5. The syringe needle on the barrel can be effectively protected by the sleeve, and the phenomenon of accidental injury in the carrying process is avoided.

6. The cylinder body can suck a proper amount of liquid medicine through the needle without sucking the liquid medicine for multiple times, medical staff can accurately control the injection dosage injected into a patient body each time, the injection dosage is accurately controlled, the cylinder body can be continuously used, the purposes of quick quantification and accurate injection are achieved, the working intensity of the medical staff is effectively reduced, the cylinder body can be repeatedly used, and great convenience is brought to the medical staff.

7. Medical staff rotates the push rod to enable the push rod to rotate in the shell, and the right half section of the push rod is matched with the accommodating threaded hole of the plunger sleeve rod, so that the push rod drives the plunger to move in the barrel through the plunger sleeve rod, the plunger is gradually close to the needle head, and the plunger injects liquid medicine in the barrel into a patient through the needle head; meanwhile, the push rod drives the rotary disk fixed on the left half section of the rotary disk to rotate, so that corresponding dose numbers on the rotary disk are aligned with the scale window, the injection condition can be observed at any time through the scale window, continuous quantitative injection and refined injection can be conveniently carried out, and the rotary disk can be repeatedly used.

8. The utility model can also be suitable for vaccinating, for example, each time the vaccinating is 0.5ml, the vaccinating person is injected by adopting an independent injection tube, after the vaccinating is injected, the injection tube is discarded, the resource waste is caused, the use cost is increased, the injector can carry out continuous injection for many times, the last vaccinating person is injected quantitatively, after the needle head is replaced, the next vaccinating person is injected quantitatively, the fast quantification and the accurate injection are realized, the injection dosage is controlled accurately, and the vaccinating person can carry out continuous injection for many times.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the present invention without a sleeve;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a state diagram of the present invention;

FIG. 5 is a schematic structural view of a rotary disk according to the present invention;

in the figure: 1. a barrel; 2. a liquid level window; 3. a needle head; 4. a housing; 5. a scale window; 6. a knob; 7. a barrel sleeve; 8. a clamping rod; 9. a plunger; 10. a receiving threaded hole; 11. a plunger rod; 12. a push rod; 13. a right chute; 14. a left half section; 15. a right half section; 16. a right slider; 17. a limiting block; 18. rotating the disc; 19. dose numbers; 20. a left chute; 21. a left slider; 22. and (4) mounting the groove.

Detailed Description

In order to better understand the technical content of the utility model, specific embodiments are provided below, and the utility model is further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides an adjustable continuous quantitative injector for liquid medicine, comprising a cylinder 1 and a shell 4, wherein the cylinder 1 and the shell 4 are both in a cylindrical structure, the right end of the cylinder 1 is connected with the left end of the shell 4, the right end of the cylinder 1 is detachably provided with a needle 3, the needle 3 can be detached from the injection cylinder 1, so that a new needle 3 can be conveniently installed, and great convenience is brought to medical personnel, the cylinder 1 is detachably provided with a cylinder sleeve 7 on the outside, so that the cylinder sleeve 7 can be conveniently installed and detached, the cylinder sleeve 7 is used for protecting the outside of the needle 3, so that the puncture of patients or medical personnel during carrying is avoided, in addition, the cylinder 1 is internally provided with a plunger 9 which is in sliding connection with the cylinder 1, the plunger 9 can slide left and right along the inner wall of the cylinder 1, the liquid medicine is sucked through the position moved by the plunger 9, or the liquid medicine is injected into the patients, the outer wall of the shell 4 is provided with a scale window 5, a medical staff can conveniently control the injection dosage of the liquid medicine through the scale window 5 when using the injection device, so as to avoid large dosage error, the shell 4 is internally provided with a left chute 20, a right chute 13, a mounting groove 22, a plunger loop bar 11 and a push rod 12, the left chute 20 and the right chute 13 are relatively embedded on the inner wall of the shell 4, the mounting groove 22 is positioned at the right side of the left chute 20/the right chute 13 and is close to the left end of the shell 4, the mounting groove 22 is communicated with the scale window 5, the right end of the plunger loop bar 11 passes through the right end of the barrel 1 and the left end of the shell 4 and is connected with the plunger 9, the plunger loop bar 11 drives the plunger 9 to move in the barrel 1, the middle part of the plunger loop bar 11 is provided with a containing threaded hole 10, in addition, the left end of the plunger loop bar 11 is relatively provided with a left slide block 21 and a right slide block 16, the left slide block 21 and the right slide block 16 are respectively arranged in the left chute 20 and the right chute 13 and are connected with the same in a sliding way, the left slider 21, the right slider 16, the left chute 20 and the right chute 13 are matched to effectively limit the moving stroke of the plunger loop bar 11, and meanwhile, the plunger loop bar has a guiding function, so that the plunger loop bar 11 is prevented from deviating in the moving process, the left end of the push rod 12 penetrates through the left end of the shell 4 and extends to the outside of the shell, the left half section 14 of the push rod 12 is provided with a circular rotating disc 18, the rotating disc 18 is embedded in an installation groove 22, the rotating disc 18 can rotate in the installation groove 22, so that corresponding dose numbers 19 on the rotating disc 18 can be displayed through the scale windows 5, a medical worker can conveniently control the dose of the injected liquid medicine, a plurality of dose numbers 19 are sequentially pasted on the periphery of the rotating disc 18, the dose numbers 19 correspond to the scale windows 5, the dose numbers 19 on the rotating disc 18 rotate to the positions corresponding to the scale windows 5, and the dose numbers 19 are displayed through the scale windows 5, the right half section 15 of the push rod 12 is matched with the accommodating threaded hole 10 of the plunger sleeve rod 11, the left end of the push rod 12 is rotated, the push rod 12 rotates in the shell 4, the plunger sleeve rod 11 is separated from the push rod 12 due to the fact that the right half section 15 of the push rod 12 is matched with the accommodating threaded hole 10 of the plunger sleeve rod 11, the plunger sleeve rod 11 drives the plunger 9 to extrude liquid medicine in the barrel body 1, the liquid medicine in the barrel body 1 is enabled to enter a human body through the main color of the needle 3, meanwhile, the rotary disc 18 on the left half section 14 of the push rod 12 rotates along with the rotation of the rotary disc 18, due to the fact that the rotary disc 18 is pasted with a plurality of dosage numbers 19 on the periphery, when the corresponding dosage numbers 19 rotate to the position corresponding to the scale window 5, at the moment, the dosage numbers 19 on the rotary disc 18 are dosages for injecting the liquid medicine.

Specifically, a liquid level window 2 is arranged on the cylinder body 1. The dosage of the liquid medicine in the barrel body 1 can be conveniently and visually known by medical staff through the liquid level window 2.

Specifically, the barrel sleeve 7 is provided with a clamping rod 8. The injector can be inserted into a pocket or a trouser pocket through the clamping rod 8, so that the injector is prevented from falling off, is convenient to carry and is convenient and fast to use.

Specifically, an internal thread is arranged on the barrel sleeve 7, a corresponding external thread is arranged on the barrel body 1, and the external thread is in threaded connection with the internal thread. The barrel sleeve 7 and the barrel body 1 are in threaded fit, so that the barrel sleeve 7 can be screwed on the barrel body 1 conveniently and can be taken down conveniently.

Specifically, the left end of the push rod 12 is provided with a knob 6, and the periphery of the knob 6 is provided with a convex edge. Through rotating knob 6, knob 6 drives push rod 12 and steadily rotates in casing 4 is inside, and then push rod 12 drives plunger 9 through plunger loop bar 11 and slides in barrel 1, has increased protruding stupefied phenomenon that takes place the hand cunning when effectively preventing to rotate knob 6 on the knob 6, increases frictional force.

Specifically, the right half section 15 of the push rod 12 is provided with an external thread, and the external thread is in threaded connection with an internal thread of the accommodating threaded hole 10. The right half section 15 of push rod 12 adopts screw-thread fit's mode with holding screw hole 10 for push rod 12 is in the pivoted, and push rod 12 drives plunger loop bar 11 and removes, breaks away from or is close to each other between push rod 12 and the plunger loop bar 11, and the plunger loop bar 11 of being convenient for drives plunger 9 and slides in barrel 1, and then injects the inside liquid medicine injection of barrel 1 in the human body.

Specifically, the dosage number 19 is 0.1-5.0 ml, and adjacent dosage numbers 19 are separated by 0.1ml units. The volume of the barrel 1 corresponding to the specific dose scale of the dose number 19 is designed according to the specific dose scale of the dose number 19, so that when the syringe pumps the dose of the liquid medicine, the dose of the liquid medicine can be visually displayed through the dose number 19, the syringe drives the plunger 9 to move towards the needle 3 through the plunger sleeve rod 11 by the rotation of the push rod 12, the plunger 9 further injects the liquid medicine in the barrel 1 into a human body, and the specific injected dose can be visually displayed through the dose number 19.

Specifically, a reinforcing block is arranged in the housing 4, the reinforcing block is positioned between the mounting groove 22 and the left sliding groove 20/sliding groove, and the reinforcing block is rotatably connected with the left half section 14 of the push rod 12, namely, the left half section 14 of the push rod 12 transversely penetrates through the reinforcing block. Can effectively support the rotation of push rod 12 through the reinforcement piece for push rod 12 rotates steadily in casing 4 inside, and stability is stronger.

The working principle of the utility model is as follows:

before injecting patient, the syringe needle 3 of this syringe aims at liquid medicine, through 6 anticlockwise rotations push rods 12 of knob, and push rods 12 is at the inside anticlockwise rotation of casing 4 for push rods 12 pass through plunger loop bar 11 and drive plunger 9 and remove in barrel 1, and syringe needle 3 is kept away from gradually to plunger 9, and then can be effectively with this liquid medicine suction barrel 1 in.

During injection, the knob 6 is rotated clockwise, so that the push rod 12 rotates clockwise inside the housing 4, as the right half-section 15 of the push rod 12 is matched with the accommodating threaded hole 10 of the plunger sleeve rod 11, the push rod 12 and the plunger sleeve rod 11 are gradually separated from each other, the plunger sleeve rod 11 pushes the plunger 9 to slide in the barrel 1, the plunger 9 gradually approaches the needle 3, so that the liquid medicine in the barrel 1 is injected into a human body through the needle 3, meanwhile, the left half-section 14 of the push rod 12 drives the rotating disc 18 to rotate in the mounting groove 22, the corresponding dosage number 19 on the rotating disc 18 rotates to the scale window 5, the dosage number 19 is aligned with the scale window 5, at this time, the dosage number 19 visually displayed on the scale window 5 is the dosage of the injected liquid medicine, for example, the dosage number 192 on the rotating disc 18 rotates to the scale window 5 to indicate that the patient has injected a dosage of 0.2ml of liquid medicine, medical staff accessible scale window 5 learns the dose of liquid medicine directly perceived, and medical staff can inject the liquid medicine dose of appropriate amount according to patient's demand, and the control is mastered easily to the injection volume, accurate ration, and barrel 1 of this syringe can carry out the ration injection back to this patient through the liquid medicine of 3 disposable suction bolus of syringe needle, changes syringe needle 3, carries out the ration injection to next patient again, and the ration injection is in succession many times.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A continuous quantitative injector of regulation formula liquid medicine which characterized in that: the syringe comprises a barrel body and a shell, wherein the right end of the barrel body is connected with the left end of the shell, a needle head is detachably arranged at the right end of the barrel body, a barrel sleeve is detachably arranged at the outer part of the barrel body, a plunger is arranged in the barrel body in a sliding manner, a scale window is arranged on the outer wall of the shell, a left sliding groove, a right sliding groove, a mounting groove, a plunger loop bar and a push rod are arranged in the shell, the left sliding groove and the right sliding groove are oppositely embedded on the inner wall of the shell, the mounting groove is positioned at the right side of the left sliding groove/the right sliding groove and is close to the left end of the shell, the mounting groove is communicated with the scale window, the right end of the plunger loop bar penetrates through the right end of the barrel body and the left end of the shell and is connected with the plunger, a containing threaded hole is formed in the middle part of the plunger loop bar, a left sliding block and a right sliding block are oppositely arranged at the left end of the left sliding groove and the right sliding groove, the left end of the push rod penetrates through the left end of the shell and extends to the outside of the shell, the left half section of the push rod is provided with a circular rotating disk, the rotating disk is embedded in the mounting groove, a plurality of dosage numbers are sequentially pasted on the periphery of the rotating disk, the dosage numbers correspond to the scale windows, and the right half section of the push rod is matched with the accommodating threaded hole of the plunger loop bar.

2. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: and a liquid level window is arranged on the barrel.

3. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: the sleeve is provided with a clamping rod.

4. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: the barrel sleeve is provided with an internal thread, the barrel body is provided with a corresponding external thread, and the external thread is in threaded connection with the internal thread.

5. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: the left end of the push rod is provided with a knob, and the periphery of the knob is provided with a convex edge.

6. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: and the right half section of the push rod is provided with an external thread, and the external thread is in threaded connection with an internal thread of the accommodating threaded hole.

7. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: the dosage number is 0.1-5.0 ml, and adjacent dosage numbers are separated by 0.1ml units.

8. The adjustable continuous dosing syringe for liquid drugs according to claim 1, wherein: the casing is equipped with the reinforcement piece in, the reinforcement piece is located mounting groove and left spout/has between the spout, and the reinforcement piece rotates with the left half section of push rod to be connected.

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