CN217472565U

CN217472565U - Accurate quantitative medicine feeder

Info

Publication number: CN217472565U
Application number: CN202220729277.8U
Authority: CN
Inventors: 王岳柏; 刘鹏; 王忠义
Original assignee: Zhejiang Jiaoyang Biomedical Technology Co ltd
Current assignee: Zhejiang Jiaoyang Biomedical Technology Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-09-23
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses an accurate ration ware of dosing, including the cylinder and with cylinder matched with push rod, the front end of push rod is provided with the bulb, and the rear end is provided with presses the splenium, the cylinder front end is provided with the syringe needle mount pad, and the rear end is provided with the ring, and the bulb of push rod and pressing are provided with the axial rod between the splenium, are provided with a spacing hole on the axial rod at least, and spacing downthehole being provided with pulls out the formula locating pin of inserting. According to the dose of medicine to be administered, the axial rod is provided with a limiting hole, the positioning pin is inserted into the limiting hole, when the push rod is pushed to extrude the medicine downwards, the ring at the rear end of the needle cylinder is abutted against the positioning pin after the dose of medicine reaches the set dose, and the dose of medicine can be administered in different times. When the medicine needs to be administered again, the positioning pin is pulled out, the push rod is continuously pushed until the medicine is completely extruded, and multiple times of quantitative administration of the medicine can be realized.

Description

Accurate quantitative medicine feeder

Technical Field

The utility model relates to a ware field of dosing, concretely relates to accurate ration ware of dosing.

Background

The medicine feeder is one device widely used in medical treatment and other fields, and has the principle of sucking liquid into syringe and discharging via luer head, and the conventional syringe has metering ruler in the outer wall to determine the injection amount, piston handle on the piston rod to push the piston, and rubber ring or rubber pushing head to make the liquid medicine enter the body.

However, in some special cases, it is often necessary to inject the medicament into a certain part of the human body with very high precision, for example, in the process of treating diseases of nasal cavity, it is often necessary to spray a certain amount of liquid medicine to the nasal cavity. For some diseases except nasal cavity, the corresponding medicine is required to be sprayed in the nasal cavity in a quantitative mode so as to be convenient for the medicine to be inhaled into the body from the nasal cavity, and the requirement of accuracy is difficult to achieve by a conventional syringe. On the other hand, when a conventional administration device is used for administration, since the liquid medicine cannot be injected in several times after the liquid medicine is sucked, in some cases where the amount of the liquid medicine to be used is small, particularly when the administration device is used for the same patient, a specific amount of the liquid medicine is sucked first, and the liquid medicine is sucked again after injection, the liquid medicine is contaminated by the repeated use of the administration device, and if the administration device is replaced by a new one-time administration device, a serious waste of resources is caused.

Disclosure of Invention

An object of the utility model is to overcome the defect that prior art exists, provide an accurate ration ware of dosing to realize accurate ration many times and dose.

In order to realize the above-mentioned purpose, the utility model provides an accurate ration of nature ware of dosing, including the cylinder and with cylinder matched with push rod, the front end of push rod is provided with the bulb, and the rear end is provided with presses the splenium, the cylinder front end is provided with the syringe needle mount pad, and the rear end is provided with the ring, the bulb of push rod with press and be provided with the axial rod between the splenium, its characterized in that, be provided with a spacing hole on the axial rod at least, spacing hole with pull out and insert the cooperation between the formula locating pin of inserting. The position of locating pin sets up according to the dose that needs the medicine of dosing at every turn in the ware of dosing to twice use of accurate ration ware of dosing is for example, when using this ware of dosing to the personnel injection medicine that need the medicine, absorbs twice total dose of using medicine earlier, inserts the locating pin, when injecting for the first time, after injection dose reaches the settlement dose, the rear end of cylinder can support and lean on the locating pin, makes the push rod can't continue to move forward, and the end of dosing for the first time. When the medicine needs to be administered for the second time, the positioning pin is taken out, and the push rod is continuously pushed to move forwards until the medicine liquid is completely extruded. The setting of last locating pin of ware of dosing can go on according to actual need, if need give medicine many times, can set up a plurality of locating pins on the axial post of push rod.

Further preferred technical scheme is, the length of locating pin is greater than the inside maximum transverse dimension of syringe.

According to a further preferred technical scheme, the limiting hole is a long hole, and the positioning pin is of a sheet structure matched with the limiting hole. The structure that combines the ware of dosing, spacing hole preferred is the quad slit or both ends are curved rectangular shape hole, and the locating pin is preferred sheet structure, and when in actual use, absorb the liquid medicine after, inject the locating pin into spacing downthehole earlier, promote the push rod and carry out the liquid medicine injection, after the injection volume reached and sets for the dose, the rear end of cylinder can support and lean on the locating pin for the push rod can't continue to advance, the end of dosing for the first time. The positioning pin is pulled out, and the second administration can be continued.

Further preferred technical scheme does, the one end of locating pin is provided with the end cap. The end cap can be rectangular structure, and the length of end cap is adjusted according to the dose of dosing, and the setting of end cap is on the one hand in order to make things convenient for accurate dosing, and a lot of continuous dosing also can use this structure, and on the other hand, the existence of end cap also provides convenience for extracting and inserting the locating pin. Generally absorb behind the liquid medicine of specific dose, there is the air more or less in the ware of dosing, need promote the push rod forward and make the air escape after absorbing the liquid medicine, the ware of dosing of this scheme of adoption absorbs behind the liquid medicine, insert the locating pin, during the exhaust of air, promote the push rod forward, support the front end at the end cap until the ring, when dosing for the first time, rotatory push rod or extract part locating pin a little, make the one end and the ring edge dislocation of end cap, can continue to promote the push rod, when the ring supports and leans on the locating pin, the end of dosing for the first time, it can carry out the second time and dose to take out the locating pin.

Further preferred technical scheme does, the end cap is the strip, and strip end cap with the one end of locating pin is articulated, the locating pin is equipped with the spacing portion that extends out by the locating pin tip with end cap articulated department, the length sum of locating pin and spacing portion is less than the inside biggest transverse dimension of cylinder. In the preferred technical scheme, continuous administration is realized by abutting the strip-shaped end cap with the finger ring at the end part of the syringe. The locating pin of this scheme can be assembled when the assembly, when taking for the medicine ware and absorbing the liquid medicine, along with the push rod rearward movement, the locating pin appears outside the syringe, can rotate the end cap this moment for end cap and locating pin parallel and level or support and lean on spacing portion, promote the push rod and give medicine forward, and when the rear end of syringe supported and leaned on the end cap, the end of dosing for the first time. The positioning pin is pulled out, and the push rod is continuously pushed to carry out secondary drug delivery.

Further preferred technical scheme is, be provided with quantitative spacing annular on the inner wall of cylinder front end. The quantitative limiting ring groove is arranged to help to accurately control the dosage, for example, after the liquid medicine is sucked, if air exists in the needle cylinder, the liquid medicine can be sucked more at the moment, then the push rod is pushed to move forwards to exhaust the air, the air is discharged when the front end of the push rod moves to the limiting ring groove, and the liquid medicine in the needle cylinder is just the sum of the dosage for many times at the moment.

The technical scheme is that the positioning pin is connected to one end of the pressing part of the push rod through a breakable point.

Further preferred technical scheme does, be provided with the rubber buffer on the bulb, the head of rubber buffer be provided with syringe needle mount pad inner tube assorted tail plug, the length of tail plug is greater than the length of syringe needle mount pad. The longer tail plug can ensure that the liquid medicine is completely extruded out when the last administration is carried out, reduce the residual quantity of the medicine, and ensure the accurate administration of the medicine quantity and the effective utilization of the medicine.

According to a further preferred technical scheme, the needle cylinder consists of a liquid storage section and a limiting section which are of a stepped structure, and the inner diameter of the liquid storage section is smaller than that of the limiting section; the push rod consists of a front push rod section and a limiting section, the length of the front push rod section is equal to that of the liquid storage section of the needle cylinder, and the positioning pin can be arranged on the limiting section of the push rod in an inserting mode. The axial rod of the push rod can be a cylindrical rod and can also comprise at least two axial prisms which are arranged in a crossed mode, and the inner diameter or the prism width of the axial rod at the front section of the push rod is smaller than that of the axial rod at the limiting section of the push rod. Can pull out the locating pin and insert the setting at the spacing section of push rod, conveniently take and use.

Further preferred technical scheme is, the ware of dosing still includes needle head or the nasal cavity protection cock body of dismantling the connection on the syringe needle mount pad.

The invention has the advantages and beneficial effects that:

1. according to the dose to be administered, the axial rod of the push rod is provided with a positioning pin, when the push rod is pushed to move and extrude the dose, the finger ring at the rear end part of the needle cylinder is abutted against the positioning pin after the dose reaches the set dose, and the dose can be administered in several times.

2. The locating pin can be pulled out and inserted and set up on the axial pole of push rod, when needs are dosed once more, pulls out the locating pin, continues to promote the push rod and extrude completely to the medicine, can realize the many times ration of medicine and give.

3. Be provided with quantitative spacing annular on the cylinder inner wall, quantitative spacing annular sets up in the total department of a lot of dose, before first dosing, promotes the push rod and makes the rubber buffer arrange quantitative spacing annular department in, under the effect of locating pin, can realize accurate ration many times and dose.

Drawings

FIG. 1 is a schematic view of a putter in accordance with embodiment 1.

Figure 2 is a schematic view of the applicator of example 1.

FIG. 3 is a sectional view of the cylinder according to examples 1 and 4.

Figure 4 is a schematic view of the applicator of example 2.

FIG. 5 is a front view of a push rod according to embodiment 2.

Figure 6 is a schematic view of the applicator when assembled according to example 3.

FIG. 7 is a schematic view of the end cap of example 3 after rotation.

FIG. 8 is a schematic view of the locating pin of example 3 after the end cap is folded.

FIG. 9 is a top view of the alignment pin after rotation of the end cap of example 3.

Fig. 10 is a schematic view of the rubber stopper of the present invention.

In the figure: 1. a needle cylinder; 11. an injection needle mounting seat; 12. a ring; 13. a quantitative limiting ring groove; 14. a liquid storage section of the needle cylinder; 15. a syringe limiting section; 2. a push rod; 21. a ball head; 22. a pressing part; 23. an axial rod; 231. an axial prism; 24. an axial rod front section; 25. an axial rod limiting section; 31. positioning pins; 32. a limiting hole; 33. an end cap; 4. a rubber plug; 41. a tail plug; 5. salient points; 6. a bump; 7. positioning holes; 8. a limiting part.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 1-3, a disposable precise quantitative medicine feeder comprises a needle cylinder 1 and a push rod 2 matched with the needle cylinder 1, wherein a ball head 21 is arranged at the front end of the push rod 2, a pressing part 22 is arranged at the rear end of the push rod 2, an axial rod 23 is arranged between the ball head 21 of the push rod and the pressing part 22, a limiting hole 32 is arranged on the axial rod 23, a positioning pin 31 is in inserted fit with the limiting hole 32, and the length of the positioning pin 31 is greater than the inner diameter of the needle cylinder 1; the front end of the syringe 1 is provided with an injection needle mounting seat 11, and the rear end is provided with a ring 12. The inner wall of the front end of the needle cylinder 1 is provided with a quantitative limiting ring groove 13, the ball head 21 is provided with a rubber plug 4, as shown in fig. 10, the head of the rubber plug 4 is provided with a tail plug 41 matched with the inner cylinder of the injection needle mounting seat 11, and the length of the tail plug 41 is greater than that of the injection needle mounting seat 11. The applicator further comprises a needle or nasal cavity shielding stopper removably attached to the needle mount 11.

Example 2

As shown in fig. 4 and 5, a disposable precise quantitative medicine feeder comprises a syringe 1 and a push rod 2 matched with the syringe 1, wherein the front end of the syringe 1 is provided with an injection needle mounting seat 11, and the rear end is provided with a finger ring 12. The needle cylinder 1 consists of a liquid storage section 14 and a limiting section 15 which are in a step structure, and the inner diameter of the liquid storage section 14 is smaller than that of the limiting section 15; the front end of push rod 2 is provided with bulb 21, the rear end is provided with presses the splenium 22, set up axial rod 23 between bulb 21 of push rod and the splenium 22 of pressing, axial rod 23 comprises the prismatic 231 of axial of 4 crossing settings, the cross-section of axial rod 23 is the cross, axial rod 23 comprises axial rod anterior segment 24 and spacing section 25, the prismatic width of axial rod anterior segment 24 is less than the prismatic width of spacing section 25, the length of axial rod anterior segment 24 is equal with the length of syringe stock solution section 14, be provided with spacing hole 32 on the spacing section 25 of axial rod, locating pin 31 can peg graft and set up on spacing hole 32, the tip of locating pin 31 is provided with end cap 33, end cap 33 is perpendicular with locating pin 31, and with locating pin 31 integrated into one piece. The ball 21 is provided with a rubber plug 4, as shown in fig. 10, the head of the rubber plug 4 is provided with a tail plug 41 matched with the inner cylinder of the needle mounting seat 11, and the length of the tail plug 41 is greater than that of the needle mounting seat 11. The applicator further comprises a needle or nasal cavity shielding stopper removably attached to the needle mount 11.

Example 3

As shown in fig. 6-9, a disposable precise quantitative medicine feeder comprises a syringe 1 and a push rod 2 matched with the syringe 1, wherein the front end of the syringe 1 is provided with an injection needle mounting seat 11, and the rear end is provided with a finger ring 12. The needle cylinder 1 consists of a liquid storage section 14 and a limiting section 15 which are in a step structure, and the inner diameter of the liquid storage section 14 is smaller than that of the limiting section 15; the front end of the push rod 2 is provided with a ball head 21, the rear end is provided with a pressing part 22, an axial rod 23 is arranged between the ball head 21 and the pressing part 22 of the push rod, the axial rod 23 is composed of 4 crossed axial prisms 231, the cross section of the axial rod 23 is cross-shaped, the axial rod 23 is composed of an axial rod front section 24 and a limiting section 25, the prism width of the axial rod front section 24 is smaller than that of the limiting section 25, the length of the axial rod front section 24 is equal to that of the syringe liquid storage section 14, the limiting section 25 of the axial rod is provided with a limiting hole 32, the positioning pin 31 is in plug fit with the limiting hole 32, the end part of the positioning pin 31 is provided with an end cap 33, the end cap 33 is hinged with the positioning pin 31, two sides of one end of the end cap 33 are provided with convex points 5, one end of the positioning pin 31 is provided with two convex blocks 6 matched with the end cap 33, the convex points 6 are provided with positioning holes 7 matched with the convex points 5, the convex points 5 are in plug fit with the positioning holes 7, the lower part of the lug 6 is also provided with a limiting part 8, and the limiting part 8 is provided with a positioning pin 31 extending out. The ball 21 is provided with a rubber plug 4, as shown in fig. 10, the head of the rubber plug 4 is provided with a tail plug 41 matched with the inner cylinder of the needle mounting seat 11, and the length of the tail plug 41 is greater than that of the needle mounting seat 11. The applicator further comprises a needle or nasal cavity shielding stopper removably attached to the needle mount 11. During the assembly of the administration device, the positioning pin 31 is inserted into the limiting hole 32, the end cap 33 is folded and extends into the syringe 1, before the first administration, the end cap 33 is rotated to be flush with the positioning pin 31, the push rod 2 is pushed to carry out the administration until the ring 12 abuts against the end cap 33, the first administration is finished, the positioning pin 31 is pulled out, and the second administration can be continued.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many 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

1. The utility model provides an accurate quantitative ware of dosing, includes the cylinder and with cylinder matched with push rod, the front end of push rod is provided with the bulb, and the rear end is provided with presses the splenium, the cylinder front end is provided with the syringe needle mount pad, and the rear end is provided with the ring, the bulb of push rod with press and be provided with the axial rod between the splenium, a serial communication port, be provided with a spacing hole on the axial rod at least, pull out between spacing hole and the formula of inserting locating pin of pulling out and insert the cooperation.

2. The dispenser of claim 1 wherein said alignment pin has a length greater than the maximum transverse dimension of the interior of said barrel.

3. The dispenser according to claim 1, wherein the limiting hole is a long hole arranged along the axial direction of the push rod, and the positioning pin is a sheet structure matched with the limiting hole.

4. The dispenser of claim 3 wherein one end of the alignment pin is provided with an end cap.

5. The dispenser according to claim 4, wherein the end cap is strip-shaped, the strip-shaped end cap is hinged to one end of the positioning pin, a limiting part extending from the end of the positioning pin is arranged at the hinged position of the positioning pin and the end cap, and the sum of the lengths of the positioning pin and the limiting part is smaller than the maximum transverse dimension inside the syringe.

6. The dispenser according to any one of claims 1 to 5, wherein the inner wall of the front end of the syringe is provided with a quantitative limiting ring groove.

7. The dispenser according to claim 6, wherein the positioning pin is connected to one end of the pressing portion of the push rod through a frangible point.

8. The administration device according to claim 7, wherein the ball head is provided with a rubber plug, the head of the rubber plug is provided with a tail plug matched with the inner cylinder of the injection needle mounting seat, and the length of the tail plug is greater than that of the injection needle mounting seat.

9. The dispenser according to claim 8, wherein the syringe is composed of a liquid storage section and a limiting section which are in a stepped structure, and the inner diameter of the liquid storage section is smaller than that of the limiting section; the push rod consists of a front push rod section and a limiting section, the length of the front push rod section is equal to that of the liquid storage section of the needle cylinder, and the positioning pin is arranged on the limiting section of the push rod in an inserted manner.

10. The dispenser of claim 9 further comprising a needle or nasal cavity shielding plug removably attached to the needle mount.