CN219127994U

CN219127994U - Transdermal drug delivery needle cylinder

Info

Publication number: CN219127994U
Application number: CN202222457778.8U
Authority: CN
Inventors: 郑国发; 林义
Original assignee: Xiamen Siming Facial Plastic Surgery Outpatient Department Co ltd
Current assignee: Xiamen Siming Facial Plastic Surgery Outpatient Department Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-06-06
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a transdermal drug delivery needle cylinder, which belongs to the technical field of medical instruments, and comprises an external straight cylinder, wherein a negative pressure device is arranged at the lower end of the external straight cylinder, a conducting pipe is fixedly connected between the negative pressure device and the external straight cylinder, the conducting pipe is communicated with the inside of the external straight cylinder, an external cylinder body is arranged at the upper end of the external straight cylinder, an internal liquid storage cylinder is fixedly connected to the inner wall of the external cylinder body through a plurality of cross rods, a piston is connected to the inside of the internal liquid storage cylinder in a sliding manner, and a liquid guide tube is fixedly connected to the upper end of the internal liquid storage cylinder.

Description

Transdermal drug delivery needle cylinder

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a transdermal drug delivery syringe.

Background

Transdermal administration refers to a method of applying medicine liquid on the surface of skin, and making the medicine liquid pass through various layers of skin and enter the human body and circulatory system to produce systemic or local therapeutic action, so that it is a new non-invasive administration route. The administration route has the advantages of convenience, simplicity, lasting drug effect and the like, is safe and has no liver first pass effect, and the most common method for transdermal administration at present is to apply the transdermal administration on the skin surface for administration.

At present, a part of patients need syringe injection administration to treat, but a part of patients and children have a certain fear to the syringe injection, so that accidents are easy to occur in the injection administration, and the administration efficiency is reduced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide the transdermal drug delivery needle cylinder, the scheme enables pores on the surface of skin to be more fully opened through negative pressure effect, and the magnetic repulsion of a magnet block and a magnet sheet is matched to drive a piston to extrude liquid medicine to be atomized and sprayed out, so that the permeation of the liquid medicine and the absorption of the surface skin to the liquid medicine are promoted, and the convenient disassembly and assembly of the built-in liquid storage cylinder are realized by virtue of the limiting effect of an elastic limiting block and a limiting groove, the replacement of the liquid medicine is facilitated, and the use effect is enhanced.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a syringe of dosing transdermally, includes external straight section of thick bamboo, negative pressure device is installed to the lower extreme of external straight section of thick bamboo, fixedly connected with switches on the pipe between negative pressure device and the external straight section of thick bamboo, and switches on the inside of pipe and external straight section of thick bamboo and be linked together, the upper end of external straight section of thick bamboo is equipped with external barrel, the inner wall of external barrel passes through a plurality of horizontal poles fixedly connected with built-in stock solution section of thick bamboo, and the inside sliding connection of built-in stock solution section of thick bamboo has the piston, the upper end fixedly connected with catheter of built-in stock solution section of thick bamboo, and catheter is linked together with its inside, the outer end fixedly connected with of catheter is movable type and sprays atomizer, the inner wall fixedly connected with elasticity ventilative diaphragm, and the outer end of elasticity ventilative diaphragm has a plurality of evenly distributed's ventilative micropore, be equipped with between elasticity ventilative diaphragm and the catheter and repel pressure mechanism, this scheme makes the pore of skin surface open more abundant to cooperate magnetism of magnet piece to repel, drives piston extrusion atomizing, and the absorption of liquid medicine of liquid, and the absorption of surface to the liquid medicine skin of elasticity and the effect of spacing, the effect of realizing convenient replacement of the inside of the liquid medicine.

Further, the repellent mechanism comprises magnet blocks, the magnet blocks are rotationally connected with the inner wall of the external straight cylinder through a rotating shaft and a bearing, gears are fixedly connected to the outer ends of the rotating shafts, two rack plates are fixedly connected to the upper ends of the elastic breathable diaphragms and are meshed with the gears, the lower ends of the pistons are fixedly connected with magnet sheets, the lower ends of the magnet sheets repel the front ends of the magnet blocks, tension ropes are fixedly connected between the magnet sheets and the built-in liquid storage cylinder, the elastic breathable diaphragms are bent along with the enhancement of negative pressure, phase change of the elastic breathable diaphragms to the direction of the negative pressure device is achieved, the two rack plates are pulled to move along with the elastic breathable diaphragms, the gears are driven to rotate, the magnet blocks correspond to the magnetic ends of the magnet sheets, and the piston is driven to extrude liquid medicine to be ejected through the movable spray atomizer by means of repulsive force.

Further, the equal fixedly connected with linking board in both ends about external barrel, and two linking boards all contact with external straight section of thick bamboo, two the equal fixedly connected with elasticity stopper of one end that linking board is close to each other, the both ends all open about external straight section of thick bamboo has the spacing groove, elasticity stopper is located the spacing inslot, and rather than assorted, through the cooperation of elasticity stopper and spacing groove each other, realize external straight section of thick bamboo and external barrel's convenient installation and dismantlement to realize the change of different liquid medicine, satisfy different user demands, strengthen the result of use.

Further, the right-hand member of built-in stock solution section of thick bamboo is excavated and is had the notes liquid mouth, and annotates the inside interference of liquid mouth and be connected with the sealing plug, magnet piece and magnet piece all adopt single face magnet material to make, through annotating the setting of liquid mouth and sealing plug, realize the injection and the anti-pollution preservation of liquid medicine, and use magnet piece and magnet piece that single face magnet material made, only the front end of magnet piece and the lower extreme of magnet piece have magnetism.

Further, two the one end that the rack board kept away from each other all is through thin pole fixedly connected with slider, the inner wall of external straight section of thick bamboo is excavated and is had two symmetrical spouts, the slider is located the spout, and rather than assorted, through the setting of slider and spout, makes the rack board keep linear steady motion, is difficult for taking place the skew, reduces the friction simultaneously, makes more smooth and easy convenient of its motion.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, pores on the surface of the skin are opened more fully through negative pressure action, magnetism of the magnet blocks and the magnet sheets are matched to repel, the piston is driven to squeeze liquid medicine to be atomized and sprayed out, permeation of the liquid medicine and absorption of the surface skin to the liquid medicine are promoted, and convenient disassembly and assembly of the built-in liquid storage cylinder are realized by means of the limiting action of the elastic limiting block and the limiting groove, replacement of the liquid medicine is facilitated, and the use effect is enhanced.

(2) The repulsion mechanism comprises magnet blocks, the magnet blocks are rotationally connected with the inner wall of the external straight cylinder through rotating shafts and bearings, gears are fixedly connected to the outer ends of the two rotating shafts, two rack plates are fixedly connected to the upper ends of the elastic ventilation diaphragms and are in meshed connection with the gears, the lower ends of pistons are fixedly connected with magnet sheets, the lower ends of the magnet sheets repel the front ends of the magnet blocks, tension ropes are fixedly connected between the magnet sheets and the built-in liquid storage cylinder, the elastic ventilation diaphragms are bent towards the direction of the negative pressure device along with the enhancement of the negative pressure effect, the elastic ventilation diaphragms are changed in phase and move along with the negative pressure device, the gears are driven to rotate, the magnet blocks correspond to the magnetic ends of the magnet sheets, and the pistons are driven to extrude liquid medicine to be sprayed out through the movable spray atomizer by means of repulsive force.

(3) The equal fixedly connected with linking board in both ends about external barrel, and two linking boards all contact with external straight section of thick bamboo, and the equal fixedly connected with elasticity stopper of one end that two linking boards are close to each other, and the both ends all open about external straight section of thick bamboo has the spacing groove, and elasticity stopper is located spacing inslot, and rather than assorted, mutually support through elasticity stopper and spacing groove, realize external straight section of thick bamboo and external barrel's convenient installation and dismantlement to realize the change of different liquid medicine, satisfy different user demands, strengthen the result of use.

(4) The right-hand member of built-in stock solution section of thick bamboo is excavated and is had notes liquid mouth, and annotates the inside interference of liquid mouth and be connected with the sealing plug, and magnet piece all adopt single face magnet material to make, through annotating the setting of liquid mouth and sealing plug, realize the injection and the anti-pollution preservation of liquid medicine, and use magnet piece and magnet piece that single face magnet material made, only the front end of magnet piece has magnetism with the lower extreme of magnet piece.

(5) The one end that two rack boards kept away from each other all has two symmetrical spouts through thin pole fixedly connected with slider, and the inner wall of external straight section of thick bamboo is excavated, and the slider is located the spout, and rather than assorted, through the setting of slider and spout, makes the rack board keep linear steady motion, is difficult for taking place the skew, reduces the friction simultaneously, makes its smooth and easy convenient more of motion.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the whole cross-sectional structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

fig. 4 is a schematic view of a partial cross-sectional structure of the present utility model.

The reference numerals in the figures illustrate:

1. an external straight cylinder; 2. a negative pressure device; 3. a conduit; 4. externally connecting a cylinder; 5. a liquid storage cylinder is arranged in the liquid storage cylinder; 501. a sealing plug; 6. a piston; 7. a catheter; 8. a moving jet atomizer; 9. an elastic breathable membrane; 10. a magnet block; 11. a gear; 12. rack plate; 1201. a slide block; 1202. a chute; 13. a magnet piece; 14. a tension rope; 15. a splice plate; 1501. an elastic limiting block; 1502. and a limit groove.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-4, a transdermal drug delivery syringe includes an external straight tube 1, a negative pressure device 2 is installed at the lower end of the external straight tube 1, a conduction tube 3 is fixedly connected between the negative pressure device 2 and the external straight tube 1, and the conduction tube 3 is communicated with the inside of the external straight tube 1, an external tube 4 is arranged at the upper end of the external straight tube 1, an internal liquid storage tube 5 is fixedly connected to the inner wall of the external tube 4 through a plurality of cross bars, a piston 6 is slidably connected to the inside of the internal liquid storage tube 5, a liquid guide tube 7 is fixedly connected to the upper end of the internal liquid storage tube 5, and the liquid guide tube 7 is communicated with the inside of the internal liquid storage tube, a movable spray atomizer 8 is fixedly connected to the outer end of the liquid guide tube 7, an elastic ventilation diaphragm 9 is fixedly connected to the inner wall of the external straight tube 1, a plurality of uniformly distributed ventilation micropores are drilled at the outer end of the elastic ventilation diaphragm 9, and a pressure mechanism is arranged between the elastic ventilation diaphragm 9 and the liquid guide tube 7.

Referring to fig. 2-4, the repellent mechanism includes a magnet block 10, the magnet block 10 is rotatably connected with the inner wall of the external straight cylinder 1 through a rotating shaft and a bearing, the outer ends of the two rotating shafts are fixedly connected with a gear 11, the upper ends of the elastic air-permeable membranes 9 are fixedly connected with two rack plates 12, the rack plates 12 are meshed with the gear 11, the lower ends of the pistons 6 are fixedly connected with magnet plates 13, the lower ends of the magnet plates 13 repel the front ends of the magnet block 10, a tension rope 14 is fixedly connected between the magnet plates 13 and the internal liquid storage cylinder 5, the elastic air-permeable membranes 9 are bent towards the direction of the negative pressure device 2 along with the enhancement of negative pressure effect, the two rack plates 12 are pulled to move along with the negative pressure device 2, the gear 11 is driven to rotate, the magnet block 10 corresponds to the magnetic ends of the magnet plates 13, and the piston 6 is driven to squeeze the liquid medicine to be sprayed out through the movable spray atomizer 8 by means of repulsive force.

Referring to fig. 3, two connecting plates 15 are fixedly connected to the left and right ends of the external cylinder 4, the two connecting plates 15 are in contact with the external cylinder 1, one ends of the two connecting plates 15, which are close to each other, are fixedly connected with elastic limiting blocks 1501, limiting grooves 1502 are cut into the left and right ends of the external cylinder 1, the elastic limiting blocks 1501 are located in the limiting grooves 1502 and are matched with the limiting grooves 1502, and the external cylinder 1 and the external cylinder 4 are conveniently and quickly installed and detached through the mutual matching of the elastic limiting blocks 1501 and the limiting grooves 1502, so that different liquid medicines are replaced, different use requirements are met, and the use effect is enhanced.

Referring to fig. 4, the right end of the internal liquid storage barrel 5 is provided with a liquid injection port, the inside of the liquid injection port is connected with a sealing plug 501 in an interference manner, the magnet block 10 and the magnet piece 13 are made of single-sided magnet materials, injection and pollution prevention preservation of liquid medicine are realized through the arrangement of the liquid injection port and the sealing plug 501, and the magnet block 10 and the magnet piece 13 made of single-sided magnet materials are used, so that only the front end of the magnet block 10 and the lower end of the magnet piece 13 have magnetism.

Referring to fig. 4, two ends of two rack plates 12, which are far away from each other, are fixedly connected with a sliding block 1201 through a thin rod, two symmetrical sliding grooves 1202 are cut on the inner wall of the external straight cylinder 1, the sliding block 1201 is located in the sliding groove 1202 and matched with the sliding groove 1202, and the rack plates 12 are enabled to keep linear stable movement through the arrangement of the sliding block 1201 and the sliding groove 1202, so that offset is not easy to occur, friction is reduced, and movement is smoother and more convenient.

According to the utility model, firstly, the sealing plug 501 is opened, the liquid medicine is injected into the internal liquid storage barrel 5, after the injection is finished, the sealing plug 501 is closed, then the internal liquid storage barrel 5 is placed into the external straight barrel 1, the external straight barrel 4 is aligned with the external straight barrel 1 in a contact way, meanwhile, the elastic limiting block 1501 is clamped into the limiting groove 1502 for limiting and fixing, then, the negative pressure device 2 is driven to align with the skin injection area of a patient, attractive force is generated, the opening of pores on the skin surface is increased, and along with the continuous action of the negative pressure device 2, ventilation micropores on the elastic ventilation diaphragm 9 can not meet the circulation of gas gradually, so that the elastic ventilation diaphragm 9 moves towards the negative pressure device 2 under the attractive action, the phase change is bent, the aperture of part of ventilation micropores is increased, the circulation of gas is accelerated, and when the elastic ventilation diaphragm 9 moves, the two rack plates 12 are pulled to move together, so that the rack plates 12 drive the gears 11 to rotate backwards through the meshing action, the magnetic ends of the magnet blocks 10 rotate backwards, correspond to the magnetic ends of the magnet pieces 13, repulsive force is generated, the piston 6 is driven to squeeze the liquid medicine to be sprayed to the skin surface through the movable spray nozzle 8, and the skin surface is fully permeated by the skin surface, and the absorption of the liquid medicine on the skin surface is promoted.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a percutaneous administration cylinder, includes external straight section of thick bamboo (1), its characterized in that: negative pressure device (2) are installed to the lower extreme of external straight section of thick bamboo (1), fixedly connected with switches on pipe (3) between negative pressure device (2) and the external straight section of thick bamboo (1), and switches on pipe (3) and the inside of external straight section of thick bamboo (1) is linked together, the upper end of external straight section of thick bamboo (1) is equipped with external barrel (4), the inner wall of external barrel (4) is through a plurality of horizontal poles fixedly connected with built-in stock solution section of thick bamboo (5), and the inside sliding connection of built-in stock solution section of thick bamboo (5) has piston (6), the upper end fixedly connected with catheter (7) of built-in stock solution section of thick bamboo (5), and catheter (7) are linked together with its inside, the outer end fixedly connected with motion type of catheter (7) sprays atomizer (8), the inner wall fixedly connected with elasticity ventilative diaphragm (9) of external straight section of thick bamboo (9), and the outer end of elasticity ventilative diaphragm (9) is opened there are a plurality of evenly distributed's ventilative micropore, be equipped with between elasticity ventilative diaphragm (9) and catheter (7) and the pressure repellent mechanism.

2. A transdermal drug delivery cartridge according to claim 1, wherein: the repulsion mechanism comprises magnet blocks (10), the magnet blocks (10) are rotationally connected with the inner wall of an external straight cylinder (1) through a rotating shaft and a bearing, two gears (11) are fixedly connected to the outer ends of the rotating shafts, two rack plates (12) are fixedly connected to the upper ends of elastic breathable diaphragms (9), the rack plates (12) are meshed with the gears (11), a magnet sheet (13) is fixedly connected to the lower end of a piston (6), the lower end of the magnet sheet (13) is repelled with the front end of the magnet blocks (10), and a tension rope (14) is fixedly connected between the magnet sheet (13) and an internal liquid storage cylinder (5).

3. A transdermal drug delivery cartridge according to claim 1, wherein: the utility model discloses a device for connecting a cylinder, including external cylinder (4), connecting plate (15) are all fixedly connected with in both ends about external cylinder (4), and two connecting plates (15) all contact with external straight cylinder (1), two the equal fixedly connected with elasticity stopper (1501) of one end that connecting plate (15) are close to each other, both ends all open about external straight cylinder (1) have spacing groove (1502), elasticity stopper (1501) are located spacing groove (1502), and rather than assorted.

4. A transdermal drug delivery cartridge according to claim 2, wherein: the right end of the built-in liquid storage barrel (5) is provided with a liquid injection port, the inside of the liquid injection port is connected with a sealing plug (501) in an interference mode, and the magnet block (10) and the magnet sheet (13) are made of single-sided magnet materials.

5. A transdermal drug delivery cartridge according to claim 2, wherein: two rack plates (12) are all kept away from each other one end through thin pole fixedly connected with slider (1201), the inner wall of external straight section of thick bamboo (1) is excavated has two symmetrical spout (1202), slider (1201) are located spout (1202) and rather than assorted.