CN217245123U

CN217245123U - Drug delivery device

Info

Publication number: CN217245123U
Application number: CN202123270946.4U
Authority: CN
Inventors: 顾艳芬; 俞海萍; 季永华; 王吟雨; 郁丹蕾; 蔡丹娜; 史晴玮; 高红艳; 王洁芯
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-08-23
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a drug delivery device. The drug delivery device comprises a drug containing barrel, and the bottom of the drug containing barrel is provided with an opening; a sealing plate, the sealing plate being slidably and sealingly mounted within the cartridge; the first box body is fixedly arranged above the medicine containing barrel; a first one-way valve mounted between the cartridge and the first housing; the second one-way valve is fixedly arranged at the top of the first box body; the air filter is fixedly arranged at the top of the second one-way valve; and the medicine outlet head is fixedly arranged at the top of the air filter. The utility model provides a device of dosing has convenient to use, easy operation, and the ointment at every turn uses the measurement accurate, can reduce because the dosage is not in place and the treatment that leads to is not good to and the advantage of other bad consequences that the excessive use led to the fact.

Description

Drug delivery device

Technical Field

The utility model relates to a technical field that doses especially relates to a device of dosing.

Background

The atropine eye drops are used as a treatment means for controlling myopia progression, and are well known, the atropine with low concentration and controlled dosage is in a liquid state and is packaged independently, the atropine with low concentration and controlled dosage on the market is packaged in eye ointment, the dosage is difficult to be controlled effectively by parents during use, air is generated at an extrusion port of the eye ointment during each use, the design of the atropine with dosage needing to be controlled strictly is not suitable, and the treatment effect cannot reach the expectation.

Currently, when doctors require to use one drop of dosage each time, the dosage is not standardized at all, different parents have different forces when squeezing eye ointments, so that the actual squeezed dosage is different, and the dosage of atropine needs to be strictly controlled, and the excessive dosage can cause serious adverse reactions. Secondly, the ointment is injected with air in the subsequent use process, so that the dosage of each extrusion is unstable, and parents cannot effectively control the dosage, for example, if the ointment is extruded again, the dosage possibly exceeds the dosage recommended by a doctor.

Therefore, there is a need to provide a new drug delivery device to solve the above technical problems.

The invention can ensure that the dose of the atropine eye drops with the therapeutic dose is accurate when the atropine eye drops are used each time, and the actually used dose can be visually observed, thereby reducing the poor treatment effect caused by the insufficient dosage and other adverse effects caused by the excessive use

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a convenient to use, easy operation, ointment use measurement accuracy at every turn, can reduce because the dosage is not in place and the treatment that leads to is not good to and the device of dosing of other bad consequences that the overuse caused.

In order to solve the technical problem, the utility model provides a device of dosing includes: the bottom of the medicine containing barrel is provided with an opening; a sealing plate, the sealing plate being slidably and sealingly mounted within the cartridge; the first box body is fixedly arranged above the medicament containing barrel; a first one-way valve mounted between the cartridge and the first housing; the second one-way valve is fixedly arranged at the top of the first box body; the air filter is fixedly arranged at the top of the second one-way valve; the medicine outlet head is fixedly arranged at the top of the air filter; one end of the connecting pipe is fixedly connected with one side of the first box body; the second box body is fixedly arranged at the bottom of the cartridge case and is connected with the other end of the connecting pipe; and the extrusion mechanism is arranged in the second box body.

Preferably, the extrusion mechanism comprises a push plate which is installed in the second box body in a sliding and sealing mode, a push rod is fixedly installed at the bottom of the push plate, the bottom end of the push rod extends out of the second box body and is fixedly provided with a supporting block, a spring is fixedly installed at the top of the supporting block and is sleeved on the outer side of the push rod, and the top end of the spring is fixedly connected with the second box body.

Preferably, two first limiting blocks are arranged in the second box body.

Preferably, the outer side of the medicine loading cylinder is fixedly sleeved with a shell, and the shell is fixedly connected with the medicine outlet head and the second box body.

Preferably, a second limiting block is fixedly mounted in the medicine filling cylinder, and the top of the second limiting block is in contact with the bottom of the sealing plate.

Compared with the prior art, the utility model provides a device of dosing has following beneficial effect:

the utility model provides a drug delivery device, which is characterized in that the tops of two finger blocks are contacted by the forefinger and the middle finger, and then the supporting block is pressed by the thumb to perform the same operation of injection, so that the device can be conveniently used; through by connecting pipe, second box, push pedal, push rod, supporting shoe, spring and first stopper, can realize pressing the supporting shoe at every turn and make the push pedal and the amount of the ointment or medicament that extrude when first stopper contacts all be the same to can guarantee the accuracy of the use dosage of ointment or medicament.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a drug delivery device according to the present invention;

FIG. 2 is an enlarged view of the portion A shown in FIG. 1;

fig. 3 is an enlarged schematic view of a portion B shown in fig. 1.

Reference numbers in the figures: 1. the medicine storage box comprises a medicine storage box body, 2, a first box body, 3, a first one-way valve, 4, a second one-way valve, 5, an air filter, 6, a medicine outlet head, 7, a connecting pipe, 8, a second box body, 9, a push plate, 10, a push rod, 11, a supporting block, 12, a spring, 13, a sealing plate, 14 and a shell.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a drug delivery device according to the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; fig. 3 is an enlarged schematic view of a portion B shown in fig. 1. The drug delivery device comprises: the device comprises a medicine containing barrel 1, wherein the bottom of the medicine containing barrel 1 is provided with an opening; a sealing plate 13, wherein the sealing plate 13 is installed in the cartridge 1 in a sliding and sealing mode; the first box body 2 is fixedly arranged above the medicine containing barrel 1; a first check valve 3, the first check valve 3 being installed between the cartridge 1 and the first case 2; the second one-way valve 4 is fixedly arranged at the top of the first box body 2; the air filter 5 is fixedly installed at the top of the second one-way valve 4, the air filter 5 comprises an installation pipe, a medical air filtering membrane is fixedly installed in the installation pipe, and air in the ointment or the medicament can be filtered through the air filtering membrane; the medicine outlet head 6 is fixedly arranged at the top of the air filter 5, the medicine outlet head 6 is a tubular object with a small bottom and a large head, and the medicine ointment or the medicine can be conveniently dripped through the arrangement; one end of the connecting pipe 7 is fixedly connected with one side of the first box body 2; the second box body 8 is fixedly arranged at the bottom of the cartridge case 1, and the second box body 8 is connected with the other end of the connecting pipe 7; and the extrusion mechanism is arranged in the second box body 8.

The extrusion mechanism comprises a push plate 9 which is installed in the second box body 8 in a sliding sealing mode, a push rod 10 is fixedly installed at the bottom of the push plate 9, a through hole is formed in the inner wall of the bottom of the second box body 8, the push rod 10 penetrates through the through hole, the bottom end of the push rod 10 extends to the outside of the second box body 8 and is fixedly provided with a supporting block 11, a spring 12 is fixedly installed at the top of the supporting block 11, the spring 12 is sleeved on the outer side of the push rod 10, and the top end of the spring 12 is fixedly connected with the second box body 8.

Be equipped with two first stoppers in the second box 8, through first stopper, can carry out the biggest spacing to the displacement of the at every turn upward movement of push pedal 9 to can guarantee that the user presses the uniformity of the ointment measurement of extruding at every turn.

The fixed cover in the outside of cartridge case 1 is equipped with shell 14, shell 14 with go out medicine head 6 with second box 8 fixed connection, the both sides of shell 14 all are equipped with the finger piece, and two finger pieces are the butterfly setting, and during the use, through forefinger and middle finger contact two top of finger piece, then press supporting shoe 11 with the thumb and just lower the operation that the needle is the same to can make things convenient for the use of this device.

And a second limiting block is fixedly arranged in the medicine loading barrel 1, and the top of the second limiting block is contacted with the bottom of the sealing plate 13.

The utility model provides a device of dosing's theory of operation as follows:

before use, ointment is arranged in the second box body 8, the connecting pipe 7, the first box body 2 and the medicine containing barrel 1, when the ointment packing box is used, the supporting block 11 is pressed, the supporting block 11 pushes the push rod 10 to move, the push rod 11 pushes the push plate 9 to move, the spring 12 is compressed in the process, the push plate 9 extrudes the ointment in the second box body 8, the ointment is extruded into the first box body 2 through the connecting pipe 7, at the moment, the ointment enters the air filter 5 through the first one-way valve 3 and the second one-way valve 4 and finally flows out of the medicine outlet head 6 through the second one-way valve 4, then the supporting block 11 is loosened, the supporting block 11 pushes the supporting block 11 to move under the elastic force of the spring 12, the supporting block 11 pushes the push rod 10 to drive the push plate 9 to reset, at the moment, the pressure in the second box body 8 in the first box body 2 is reduced, the sealing plate 13 moves upwards under the action of atmospheric pressure, and the ointment in the medicine containing barrel 1 enters the first box body 2 through the first one-way valve 3, Connecting the pipe 7 and the second tank 8.

the utility model provides a drug delivery device, which is characterized in that the tops of two finger blocks are contacted by the forefinger and the middle finger, then the supporting block 11 is pressed by the thumb to perform the same operation of injection, thereby being convenient for the use of the device, and the air in ointment or medicament can be filtered through the arrangement of the air filter 5, thereby improving the accuracy of the dosage of the ointment or medicament; through the connecting pipe 7, the second box body 8, the push plate 9, the push rod 10, the supporting block 11, the spring 12 and the first limiting block, the amount of the extruded ointment or medicament can be the same when the supporting block 11 is pressed and the push plate 9 is in contact with the first limiting block at each time, and therefore the accuracy of the dosage of the ointment or medicament can be guaranteed.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A drug delivery device, comprising:

the bottom of the medicine containing barrel is provided with an opening;

a sealing plate, the sealing plate being slidably and sealingly mounted within the cartridge;

the first box body is fixedly arranged above the medicine containing barrel;

a first one-way valve mounted between the cartridge and the first housing;

the second one-way valve is fixedly arranged at the top of the first box body;

the air filter is fixedly arranged at the top of the second one-way valve;

the medicine outlet head is fixedly arranged at the top of the air filter;

one end of the connecting pipe is fixedly connected with one side of the first box body;

the second box body is fixedly arranged at the bottom of the cartridge case and is connected with the other end of the connecting pipe;

and the extrusion mechanism is arranged in the second box body.

2. The drug delivery device according to claim 1, wherein the pressing mechanism comprises a push plate slidably and hermetically mounted in the second box body, a push rod is fixedly mounted at the bottom of the push plate, the bottom end of the push rod extends out of the second box body and is fixedly provided with a support block, a spring is fixedly mounted at the top of the support block, the spring is sleeved on the outer side of the push rod, and the top end of the spring is fixedly connected with the second box body.

3. The drug delivery device according to claim 2, wherein two first stoppers are provided in the second case.

4. The drug delivery device of claim 1, wherein a housing is fixedly secured to an outside of the drug cartridge, and the housing is fixedly connected to the drug discharge head and the second housing.

5. The drug delivery device of claim 1, wherein a second stop block is fixedly mounted in the drug cartridge, and the top of the second stop block is in contact with the bottom of the sealing plate.