CN213220045U

CN213220045U - Pre-filling injection pen capable of setting dosage

Info

Publication number: CN213220045U
Application number: CN202021471926.6U
Authority: CN
Inventors: 林俊国; 林俊金; 骆敏; 柯清峰
Original assignee: Shenzhen Lvxing Technology Co ltd
Current assignee: Shenzhen Lvxing Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-05-18
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a pre-filled injection pen capable of setting dosage, which comprises a pen container and a needle head, the needle head is arranged at the bottom end of the pen container, the outer wall at the top end of the pen container is fixedly connected with a guide block, the inner side of the pen container is movably connected with a piston rod, the bottom end of the piston rod is provided with a rubber plug, the top end of the piston rod is integrally formed with a push plate, the outer walls at two sides of the push plate are fixedly connected with a connecting lug, the lower surface of the connecting lug is fixedly connected with a metering rod, the surface of the metering rod is provided with a scale mark, the outer side of the metering rod is movably connected with a stopper, the surface at one side of the stopper is fixedly connected with a locking nut, the inner side of the locking nut is rotatably connected with a, convenient operation, low production cost and suitability for popularization and use.

Description

Pre-filling injection pen capable of setting dosage

Technical Field

The utility model relates to a medicine injection auxiliary device technical field specifically is a can set for prefilling injection pen of dosage.

Background

Insulin is a protein hormone secreted by the beta cells of the islets of langerhans in the pancreas stimulated by endogenous or exogenous substances such as glucose, lactose, ribose, arginine, glucagon, etc. Insulin is the only hormone in the body which reduces blood sugar and promotes the synthesis of glycogen, fat and protein. Exogenous insulin is mainly used for treating diabetes.

However, the pre-filled injection pen proposed in the prior patent No. CN201911032360.9 mainly has the following disadvantages:

1. the existing pre-filled injection pen has the disadvantages of complicated set metering structure, inconvenient operation, high production cost and unsuitability for popularization and use.

2. The needle head of the existing prefilled injection pen does not have the function of sterilization and disinfection, and is easy to cause infection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pre-filling injection pen capable of setting dosage, which solves the problems of the prior pre-filling injection pen in the background technology that the setting and metering structure is complex, the operation is inconvenient, the production cost is high, and the pre-filling injection pen is not suitable for popularization and use; the needle head of the existing prefilled injection pen does not have the function of sterilization and disinfection, so that the problem of infection is easily caused.

In order to achieve the above object, the utility model provides a following technical scheme: a pre-filled injection pen capable of setting dosage comprises a pen container and a needle head, wherein the needle head is installed at the bottom end of the pen container, a guide block is fixedly connected with the outer wall at the top end of the pen container, a piston rod is movably connected at the inner side of the pen container, a rubber plug is installed at the bottom end of the piston rod, a push plate is integrally formed at the top end of the piston rod, connecting lugs are fixedly connected with the outer walls at two sides of the push plate, a metering rod is fixedly connected with the lower surface of the connecting lugs, scale marks are arranged on the surface of the metering rod, a limiting block is movably connected at the outer side of the metering rod, a locking nut is fixedly connected with the surface at one side of the limiting block, a threaded rod is rotatably connected at the inner side of the locking nut, a, the surface of the medical cotton layer is coated with a nano silver coating.

Preferably, stopper opposite side surface fixedly connected with bent type connecting rod passes through bent type connecting rod interconnect between two stoppers, can improve the regulation precision of stopper on the one hand, and on the other hand can effectually prevent that the stopper is not hard up.

Preferably, the through-hole has been seted up to the stopper inboard, and the through-hole links to each other with the measuring stick is pegged graft, the threaded rod other end extends to the through-hole inboard, through manual drive hand wheel to make the terminal top of threaded rod on the outer wall of measuring stick, it is fixed to the screw rod through lock nut, thereby fix the stopper on the measuring stick.

Preferably, the bottom end of the metering rod is fixedly connected with a stop block, so that the metering rod can be prevented from being separated from the guide block.

Preferably, syringe needle one end fixedly connected with external screwed joint, the internal thread has been seted up to outer bush apical pore inboard, and the internal thread rotates with external screwed joint to be connected, conveniently installs and dismantles outer bush, and outer bush plays fine guard action to the syringe needle moreover.

Preferably, the inner bushing is connected with the needle head, the medical cotton layer is attached to the needle head, and the medical cotton layer compounded through the inner wall of the inner bushing is wrapped on the inner side of the needle head, so that the nano silver coating coated on the surface of the medical cotton layer can effectively sterilize and disinfect the needle head.

The utility model provides a can set for prefilling injection pen of dosage possesses following beneficial effect:

(1) the utility model discloses a metering rod surface is equipped with the scale mark, can adjust the dose of injection according to the scale mark, through adjusting the stopper, make the dose of injection after the adjustment of interval between stopper and the guide block, and through artifical driving hand wheel, thereby make the terminal top of threaded rod on the outer wall of metering rod, it is fixed to the threaded rod through lock nut, thereby fix the stopper on the metering rod, promote the piston rod through the push pedal and remove, thereby make the rubber buffer extrude the inboard liquid medicine of pen container, when stopper and guide block laminating, then accomplish the injection of setting for the dose, moreover, the steam generator is simple in structure, and high convenience in operation, low in production cost, and is suitable for being generalized to use.

(2) The utility model discloses a compound medical cotton layer of neck bush inner wall wraps up in the inboard of syringe needle to can effectually make the coating disinfect the disinfection to the syringe needle at the nanometer silver coating on medical cotton layer surface, cause the infection when avoiding injecting.

Drawings

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

FIG. 2 is a schematic view of the sectional structure of the limiting block of the present invention;

FIG. 3 is a schematic view of the inner structure of the outer liner of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the medical cotton layer of the present invention.

In the figure: 1. a pen container; 101. a needle head; 102. a guide block; 2. a piston rod; 201. a rubber plug; 202. pushing the plate; 203. connecting lugs; 3. a metering rod; 301. scale lines; 302. a limiting block; 303. a curved connecting rod; 304. locking the nut; 305. a threaded rod; 306. a hand wheel; 307. a through hole; 308. a stopper; 4. an externally threaded nipple; 5. an outer liner; 501. an inner liner; 502. an internal thread; 503. a medical cotton layer; 504. and (4) coating nano silver.

Detailed Description

The technical solution 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.

As shown in fig. 1-4, the utility model provides a technical solution: the pre-filling injection pen capable of setting dosage comprises a pen container 1 and a needle 101, wherein the needle 101 is installed at the bottom end of the pen container 1, a guide block 102 is fixedly connected to the outer wall of the top end of the pen container 1, a piston rod 2 is movably connected to the inner side of the pen container 1, a rubber plug 201 is installed at the bottom end of the piston rod 2, a push plate 202 is integrally formed at the top end of the piston rod 2, connecting lugs 203 are fixedly connected to the outer walls of two sides of the push plate 202, a metering rod 3 is fixedly connected to the lower surface of each connecting lug 203, a scale mark 301 is arranged on the surface of each metering rod 3, a limiting block 302 is movably connected to the outer side of each metering rod 3, a locking nut 304 is fixedly connected to the surface of one side of the limiting block 302, a threaded rod 305 is rotatably connected to the inner side of the locking nut, the inner wall of the inner liner 501 is compounded with a medical cotton layer 503, and the surface of the medical cotton layer 503 is coated with a nano-silver coating 504.

The scale marks 301 are arranged on the surface of the measuring rod 3, the injection dosage can be adjusted according to the scale marks 301, the spacing between the limiting block 302 and the guide block 102 is used as the injection dosage after adjustment by adjusting the limiting block 302, the hand wheel 306 is manually driven, so that the tail end of the threaded rod 305 is pressed against the outer wall of the measuring rod 3, the threaded rod 305 is fixed through the locking nut 304, the limiting block 302 is fixed on the measuring rod 3, the piston rod 2 is pushed to move through the push plate 202, so that the rubber plug 201 extrudes the liquid medicine inside the pen container 1, when the limiting block 302 is attached to the guide block 102, the injection for setting the dosage is completed, the structure is simple, the operation is convenient, the production cost is low, the popularization and the use are suitable, the medical cotton layer 503 compounded on the inner wall of the lining 501 is wrapped on the inner side of the needle head 101, so that the nano silver coating 504 coated on the surface of, the silver ions in the nano-silver coating 504 can kill 650 kinds of bacteria within a few minutes, and after the nano-silver particles are combined with cell walls/membranes of pathogenic bacteria, the nano-silver particles can directly enter thalli and are rapidly combined with sulfydryl (-SH) of oxygen metabolism enzyme, so that the enzyme is inactivated, respiratory metabolism is blocked, and the nano-silver particles can kill pathogenic bacteria rapidly at low concentration due to a unique sterilization mechanism.

The curved connecting rod 303 is fixedly connected to the other side surface of each limiting block 302, and the two limiting blocks 302 are connected with each other through the curved connecting rod 303, so that on one hand, the adjusting precision of the limiting blocks 302 can be improved, and on the other hand, the limiting blocks 302 can be effectively prevented from loosening.

Through-hole 307 has been seted up to stopper 302 inboard, and through-hole 307 links to each other with the measuring rod 3 grafting, the threaded rod 305 other end extends to through-hole 307 inboard, through manual drive hand wheel 306 to make threaded rod 305 end top on the outer wall of measuring rod 3, it is fixed to threaded rod 305 through lock nut 304, thereby fixes stopper 302 on measuring rod 3.

The bottom end of the metering rod 3 is fixedly connected with a stop block 308, which can prevent the metering rod 3 from separating from the guide block 102.

Syringe needle 101 one end fixedly connected with screwed joint 4, 5 apical orifice inboards of outer liner are seted up there is internal thread 502, and internal thread 502 rotates with screwed joint 4 to be connected, conveniently installs and dismantles outer liner 5, and outer liner 5 plays fine guard action to syringe needle 101 moreover.

The inner bushing 501 is connected with the needle 101, the medical cotton layer 503 is attached to the needle 101, and the medical cotton layer 503 compounded on the inner wall of the inner bushing 501 is wrapped on the inner side of the needle 101, so that the needle 101 can be effectively sterilized and disinfected by the nano-silver coating 504 coated on the surface of the medical cotton layer 503.

It should be noted that, when the prefilled injection pen capable of setting dosage is in use, the surface of the metering rod 3 is provided with the scale mark 301, the dosage for injection can be adjusted according to the scale mark 301, the spacing between the limiting block 302 and the guide block 102 is used as the dosage for injection after adjustment by adjusting the limiting block 302, and the hand wheel 306 is manually driven, so that the tail end of the threaded rod 305 is pressed against the outer wall of the metering rod 3, the threaded rod 305 is fixed through the locking nut 304, so that the limiting block 302 is fixed on the metering rod 3, the piston rod 2 is pushed by the push plate 202 to move, so that the rubber plug 201 presses out the liquid medicine inside the pen container 1, when the limiting block 302 is attached to the guide block 102, the injection for setting dosage is completed, the prefilled injection pen has a simple structure, is convenient to operate, has low production cost, is suitable for popularization and use, and the medical cotton layer 503, therefore, the nano silver coating 504 coated on the surface of the medical cotton layer 503 can effectively sterilize and disinfect the needle 101, silver ions in the nano silver coating 504 can kill 650 kinds of bacteria within minutes, nano silver particles can directly enter thalli after being combined with cell walls/membranes of pathogenic bacteria and rapidly combine with sulfydryl (-SH) of oxygen metabolism enzyme to inactivate the enzyme and block respiratory metabolism to cause the bacteria to be choked, the special sterilization mechanism ensures that the nano silver particles can rapidly kill the pathogenic bacteria at low concentration, the other side surface of the limiting block 302 is fixedly connected with the curved connecting rod 303, the two limiting blocks 302 are mutually connected through the curved connecting rod 303, on one hand, the adjustment precision of the limiting blocks 302 can be improved, on the other hand, the limiting block 302 can be effectively prevented from loosening, the through holes 307 are formed in the inner sides of the limiting blocks 302, the through holes 307 are connected with the metering rod 3 in an inserting mode, and the other ends of the, the hand wheel 306 is manually driven, so that the end of the threaded rod 305 is pressed against the outer wall of the metering rod 3, the threaded rod 305 is fixed through the lock nut 304, thereby fixing the limit block 302 on the measuring rod 3, the bottom end of the measuring rod 3 is fixedly connected with a stop block 308, can prevent the measuring rod 3 from separating from the guide block 102, one end of the needle 101 is fixedly connected with an external thread joint 4, the inner side of the top opening of the outer bushing 5 is provided with an internal thread 502, and the internal thread 502 is rotatably connected with the external thread joint 4, so that the external bushing 5 can be conveniently mounted and dismounted, the outer lining 5 has good protection function to the needle 101, the inner lining 501 is connected with the needle 101, the medical cotton layer 503 is jointed with the needle 101, the medical cotton layer 503 compounded by the inner wall of the inner lining 501 is wrapped on the inner side of the needle 101, therefore, the nano silver coating 504 coated on the surface of the medical cotton layer 503 can effectively sterilize and disinfect the needle 101.

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

1. A pre-filled injection pen with settable dose, comprising a barrel (1) and a needle (101), the needle (101) being mounted at the bottom end of the barrel (1), characterized in that: the pen container comprises a pen container body (1), a guide block (102) is fixedly connected to the outer wall of the top end of the pen container body (1), a piston rod (2) is movably connected to the inner side of the pen container body (1), a rubber plug (201) is installed at the bottom end of the piston rod (2), a push plate (202) is integrally formed at the top end of the piston rod (2), connecting lugs (203) are fixedly connected to the outer walls of the two sides of the push plate (202), a metering rod (3) is fixedly connected to the lower surface of each connecting lug (203), scale marks (301) are formed in the surface of each metering rod (3), a limiting block (302) is movably connected to the outer side of each metering rod (3), a locking nut (304) is fixedly connected to the surface of one side of each limiting block (302), a threaded rod (305) is rotatably connected to, an inner bushing (501) is integrally formed on the inner side of the outer bushing (5), a medical cotton layer (503) is compounded on the inner wall of the inner bushing (501), and a nano-silver coating (504) is coated on the surface of the medical cotton layer (503).

2. A dose settable pre-filled injection pen according to claim 1, wherein: and the other side surface of the limiting block (302) is fixedly connected with a curved connecting rod (303).

3. A dose settable pre-filled injection pen according to claim 1, wherein: through-hole (307) have been seted up to stopper (302) inboard, and through-hole (307) and metering rod (3) are pegged graft and are connected, threaded rod (305) other end extends to through-hole (307) inboard.

4. A dose settable pre-filled injection pen according to claim 1, wherein: the bottom end of the metering rod (3) is fixedly connected with a stop block (308).

5. A dose settable pre-filled injection pen according to claim 1, wherein: the needle head (101) one end fixedly connected with external screwed joint (4), outer bush (5) are seted up on the mouth inboard and are had internal thread (502), and internal thread (502) and external screwed joint (4) rotate to be connected.

6. A dose settable pre-filled injection pen according to claim 1, wherein: the inner lining (501) is connected with the needle head (101), and the medical cotton layer (503) is attached to the needle head (101).