Transdermal drug delivery device

Abstract

The utility model provides a transdermal drug delivery device. The transdermal drug delivery device comprises: a support plate; the pesticide box is fixedly installed on the supporting plate, and a liquid inlet pipe is fixedly installed on one side of the pesticide box; the check valve is arranged on the liquid inlet pipe; the plurality of liquid filtering openings are formed in the bottom of the medicine box; the liquid squeezing mechanism is arranged in the medicine box and used for conveying the medicine liquid. The transdermal drug delivery device provided by the utility model has the advantages that the drug can be continuously supplied to the attached part, and the frequent replacement of the drug patch is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a transdermal drug delivery device. Background Art

[0002] In order to treat brucellosis, it is usually necessary to deliver drugs to patients through oral, intravenous or intramuscular injections. After oral administration, drugs are easily interfered with by digestive juices, food and other factors when absorbed through the digestive tract, and some are destroyed by the liver (first-pass effect), resulting in reduced efficacy. Frequent medication and large dosage are required. In addition, some drugs are irritating to the gastrointestinal mucosa and will produce a series of adverse reactions. Injection requires certain techniques and equipment, which is very inconvenient, and injection causes pain and poor compliance. Therefore, transdermal drug delivery has become a treatment method with obvious advantages.

[0003] However, since transdermal drug delivery mostly uses a patch to fix the drug delivery device on the affected skin, after a certain period of time, as the drug is consumed, the patient needs to frequently tear off the patch and replace the drug delivery device due to insufficient drug. This frequent replacement process will cause certain irritation to the patient's skin, which will have a certain negative impact on the absorption of the drug, resulting in poor treatment effect.

[0004] Therefore, it is necessary to provide a new transdermal drug delivery device to solve the above technical problems. Utility Model Content

[0005] In order to solve the technical problem that the existing transdermal drug delivery device needs frequent replacement due to insufficient drug, which may deteriorate the treatment effect, the utility model provides a transdermal drug delivery device.

[0006] The transdermal drug delivery device provided by the utility model comprises: a support plate; a medicine box, the medicine box is fixedly mounted on the support plate, a liquid inlet pipe is fixedly mounted on one side of the medicine box; a check valve, the check valve is arranged on the liquid inlet pipe; a plurality of filtrate ports, the filtrate ports are all opened at the bottom of the medicine box; and a liquid squeezing mechanism, the liquid squeezing mechanism is arranged in the medicine box for transmitting the drug solution.

[0007] Preferably, the liquid extrusion mechanism includes a motor, a one-way screw and a pressure plate, the motor is fixedly installed on the top of the medicine box, the one-way screw is rotatably installed in the medicine box, the output shaft of the motor is fixedly connected to one end of the one-way screw, the pressure plate is slidably installed in the medicine box, and the pressure plate is threadedly connected to the one-way screw.

[0008] Preferably, an auxiliary plate is provided below the support plate, a plurality of permeation nets are provided on the auxiliary plate, the plurality of permeation nets are respectively provided corresponding to the plurality of filtrate ports, and a plurality of heating wires are fixedly installed in the auxiliary plate.

[0009] Preferably, the support plate is provided with a plurality of first notches, a plurality of plug blocks are fixedly mounted on the auxiliary plate, the plurality of first notches are respectively matched with the plurality of plug blocks, and the plurality of plug blocks are provided with limiting openings.

[0010] Preferably, the support plate is provided with a plurality of clamping mechanisms for fixing the plurality of plug blocks, the clamping mechanisms include a second slot, a plurality of springs, a support block and a push rod, the second slot is opened at the top of the support plate, the plurality of springs are fixedly mounted on an inner wall on one side of the second slot, the support block is slidably mounted in the second slot, a pressing head is fixedly mounted on the top of the support block, and the plurality of springs are fixedly connected to the support block, the push rod is fixedly mounted on one side of the support block, and the push rod is engaged with the limiting opening.

[0011] Preferably, a cloth pad is provided at the bottom of the auxiliary plate, and bayonet holes are opened on both sides of the support plate, and the two ends of the cloth pad are respectively adapted to the two bayonet holes, and a plurality of fixing bolts are fixedly installed on the support plate, and the bottom ends of the plurality of fixing bolts are in contact with the cloth pad.

[0012] Preferably, a medicine patch is provided at the bottom of the cloth pad, and a plurality of auxiliary patches are provided on the support plate.

[0013] Compared with the related art, the transdermal drug delivery device provided by the utility model has the following beneficial effects:

[0014] The utility model provides a transdermal drug delivery device:

[0015] The liquid medicine in the medicine box is restricted by the check valve to prevent the liquid medicine from flowing back from the liquid inlet pipe when the pressing plate is pressed down, causing waste of liquid medicine. The output shaft of the motor in the liquid extrusion mechanism drives the one-way screw to start rotating, thereby driving the pressing plate to start squeezing the liquid medicine, so that the liquid medicine can be discharged through the filtrate port, so that the liquid medicine can be replenished to the medicine patch in time, thereby compensating the medicine at the bonding site, and there is no need to frequently replace the medicine patch, thereby improving the treatment effect;

[0016] The skin at the contact part is heated by the heating wire, which can enhance the penetration effect of the liquid medicine. The auxiliary plate can be directly disassembled and replaced by separating the plug block and the first notch. The clamping and disassembly process is relatively simple. By pressing the pressing head on the top of the support block in the clamping mechanism, the support block extrusion spring is driven to move in the second notch, and finally the ejector rod is pulled out from the limit opening on the plug block. The operation is relatively simple.

[0017] The cloth pad can be directly disassembled and cleaned by twisting the fixing bolts. The disassembly process is relatively simple and easy to replace. The device is assisted in fixing by multiple auxiliary stickers, making the fit between the device and the human body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a cross-sectional structure of a preferred embodiment of the transdermal drug delivery device provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the top cross-sectional structure of the auxiliary plate in the utility model;

[0020] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0021] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0022] Numbers in the figure: 1. Support plate; 2. Medicine box; 3. Check valve; 4. Filtrate port; 5. Motor; 6. One-way screw; 7. Press plate; 8. Auxiliary plate; 9. Permeation net; 10. Heating wire; 11. First notch; 12. Insert block; 13. Second notch; 14. Spring; 15. Support block; 16. Push rod; 17. Cloth pad; 18. Bayonet; 19. Fixing bolt; 20. Medicine patch; 21. Auxiliary patch. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1-Figure 4 ,in, Figure 1 A schematic diagram of a cross-sectional structure of a preferred embodiment of the transdermal drug delivery device provided by the utility model; Figure 2 It is a schematic diagram of the top cross-sectional structure of the auxiliary plate in the utility model; Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG. Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0025] The transdermal drug delivery device comprises: a support plate 1; a medicine box 2, which is fixedly mounted on the support plate 1, and a liquid inlet pipe is fixedly mounted on one side of the medicine box 2; a check valve 3, which is arranged on the liquid inlet pipe; a plurality of filtrate ports 4, which are all opened at the bottom of the medicine box 2; a liquid squeezing mechanism, which is arranged in the medicine box 2 for transmitting liquid medicine, and the liquid medicine in the medicine box 2 is restricted by the check valve 3 to prevent the liquid medicine from flowing back from the liquid inlet pipe when the pressing plate 7 is pressed down, thereby causing waste of liquid medicine.

[0026] The liquid extrusion mechanism includes a motor 5, a one-way screw 6 and a pressing plate 7, wherein the motor 5 is fixedly mounted on the top of the medicine box 2, the one-way screw 6 is rotatably mounted in the medicine box 2, the output shaft of the motor 5 is fixedly connected to one end of the one-way screw 6, the pressing plate 7 is slidably mounted in the medicine box 2, and the pressing plate 7 is threadedly connected to the one-way screw 6. The one-way screw 6 starts to rotate through the output shaft of the motor 5 in the liquid extrusion mechanism, thereby driving the pressing plate 7 to start extruding the medicine liquid, so that the medicine liquid can be discharged through the filtrate port 4, so that the medicine liquid is timely replenished to the medicine patch 20, thereby compensating the medicine at the fitting place, and there is no need to frequently replace the medicine patch 20, thereby improving the treatment effect.

[0027] An auxiliary plate 8 is arranged below the support plate 1, and a plurality of permeation nets 9 are arranged on the auxiliary plate 8. The plurality of permeation nets 9 are respectively arranged corresponding to the plurality of filtrate ports 4. A plurality of heating wires 10 are fixedly installed in the auxiliary plate 8. The heating wires 10 are used to heat the skin at the contact point, thereby enhancing the penetration effect of the liquid medicine.

[0028] The support plate 1 is provided with a plurality of first slots 11, and a plurality of plug-in blocks 12 are fixedly mounted on the auxiliary plate 8. The plurality of first slots 11 are respectively matched with the plurality of plug-in blocks 12, and the plurality of plug-in blocks 12 are provided with limiting openings. The auxiliary plate 8 can be directly disassembled and replaced by separating the plug-in blocks 12 and the first slots 11, and the disassembly process is relatively simple.

[0029] The support plate 1 is provided with a plurality of clamping mechanisms for fixing the plurality of plug blocks 12, the clamping mechanisms comprising a second notch 13, a plurality of springs 14, a support block 15 and a push rod 16, the second notch 13 is opened at the top of the support plate 1, the plurality of springs 14 are fixedly mounted on an inner wall of one side of the second notch 13, the support block 15 is slidably mounted in the second notch 13, a pressing head is fixedly mounted on the top of the support block 15, and the plurality of springs 14 are fixedly connected to the support block 15, the push rod 16 is fixedly mounted on one side of the support block 15, and the push rod 16 is plugged into the limiting opening, and the pressing head on the top of the support block 15 in the clamping mechanism is pressed to drive the support block 15 to squeeze the spring 14 to move in the second notch 13, and finally drive the push rod 16 to be pulled out of the limiting opening on the plug block 12, and the operation is relatively simple.

[0030] A cloth pad 17 is provided at the bottom of the auxiliary plate 8, and bayonet holes 18 are opened on both sides of the support plate 1. The two ends of the cloth pad 17 are respectively adapted to the two bayonet holes 18. A plurality of fixing bolts 19 are fixedly installed on the support plate 1, and the bottom ends of the plurality of fixing bolts 19 are in contact with the cloth pad 17. The cloth pad 17 can be directly disassembled and cleaned by twisting the fixing bolts 19. The disassembly process is relatively simple and easy to replace.

[0031] A medicine patch 20 is provided at the bottom of the cloth pad 17, and a plurality of auxiliary patches 21 are provided on the support plate 1. The device is assisted in being fixed by the plurality of auxiliary patches 21, so that the device fits the human body more stably.

[0032] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0033] The working principle of the transdermal drug delivery device provided by the utility model is as follows:

[0034] This solution also has an electric control cabinet, which is installed on the equipment. When in use, each electrical device can be started and operated through the electric control cabinet. The power connection method of each electrical device is an existing mature technology, which is a well-known technology for people in this field and will not be described in detail here.

[0035] When in use, the device is first placed on the corresponding part, then the protective layer on the patch 20 is torn off, the patch 20 is attached to the human body, and then the device is assisted and fixed by multiple auxiliary patches 21, so that the device and the human body are more stably attached;

[0036] After the installation is completed, the motor 5 is started, and the one-way screw 6 is driven to rotate by the output shaft of the motor 5, thereby driving the pressing plate 7 to start squeezing the liquid medicine, so that the liquid medicine can be discharged through the filtrate port 4, so that the liquid medicine is replenished to the medicine patch 20 in time, thereby compensating the medicine at the bonding site, and there is no need to frequently replace the medicine patch 20, thereby improving the treatment effect;

[0037] When transdermal administration is performed on a patient, if the patient's skin has a poor permeability to the drug, or the drug itself does not have a component that promotes permeation, the heating wire 10 is activated to heat the skin at the contact point, thereby enhancing the permeation effect of the drug solution.

[0038] If the device needs to be cleaned after the medication is completed, the auxiliary patch 21 and the medicine patch 20 are torn off, and the cloth pad 17 is directly disassembled and cleaned by twisting the fixing bolt 19. The disassembly process is relatively simple and easy to replace. Then, the pressing head on the top of the support block 15 is pressed to drive the support block 15 to squeeze the spring 14 to move in the second slot 13, and finally the push rod 16 is pulled out of the limit opening on the plug block 12. The operation is relatively simple. Then, the auxiliary plate 8 is directly disassembled and replaced by separating the plug block 12 and the first slot 11. The card-set disassembly process is relatively simple.

[0039] Compared with the related art, the transdermal drug delivery device provided by the utility model has the following beneficial effects:

[0040] The utility model provides a transdermal drug delivery device, which limits the drug liquid in the medicine box 2 through the check valve 3 to prevent the drug liquid from flowing back from the liquid inlet pipe when the pressing plate 7 is pressed down, causing the drug liquid to be wasted, and the output shaft of the motor 5 in the liquid extrusion mechanism drives the one-way screw 6 to start rotating, thereby driving the pressing plate 7 to start squeezing the drug liquid, so that the drug liquid can be discharged through the filtrate port 4, so that the drug liquid is replenished to the drug patch 20 in time, so as to compensate the drug at the fitting place, and there is no need to frequently replace the drug patch 20, thereby improving the treatment effect, and the heating wire 10 heats the skin at the fitting place, which can enhance the drug liquid The penetration effect can be achieved by directly removing and replacing the auxiliary plate 8 by separating the plug block 12 and the first slot 11. The disassembly process is relatively simple. By pressing the pressing head on the top of the support block 15 in the clamping mechanism, the support block 15 is driven to squeeze the spring 14 to move in the second slot 13, and finally the push rod 16 is pulled out of the limit opening on the plug block 12. The operation is relatively simple. The cloth pad 17 can be directly disassembled and cleaned by twisting the fixing bolt 19. The disassembly process is relatively simple and easy to replace. The device is assisted and fixed by multiple auxiliary stickers 21, so that the fit between the device and the human body is more stable.

[0041] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. However, on the premise that technical personnel in this field understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transdermal drug delivery device, characterized in that: include: Support plate; A medicine box, the medicine box is fixedly mounted on the support plate, and a liquid inlet pipe is fixedly mounted on one side of the medicine box; A check valve, wherein the check valve is arranged on the liquid inlet pipe; A plurality of filtrate ports, each of which is provided at the bottom of the medicine box; A liquid squeezing mechanism is arranged in the medicine box for transmitting the medicine liquid.

2. The transdermal drug delivery device according to claim 1, characterized in that: The liquid extrusion mechanism includes a motor, a one-way screw and a pressure plate, wherein the motor is fixedly installed on the top of the medicine box, the one-way screw is rotatably installed in the medicine box, the output shaft of the motor is fixedly connected to one end of the one-way screw, the pressure plate is slidably installed in the medicine box, and the pressure plate is threadedly connected to the one-way screw.

3. The transdermal drug delivery device according to claim 1, characterized in that: An auxiliary plate is arranged below the support plate, and a plurality of permeation nets are arranged on the auxiliary plate. The plurality of permeation nets are arranged corresponding to the plurality of filtrate ports, respectively. A plurality of heating wires are fixedly installed in the auxiliary plate.

4. The transdermal drug delivery device according to claim 3, characterized in that: The support plate is provided with a plurality of first notches, and a plurality of plug-in blocks are fixedly mounted on the auxiliary plate. The plurality of first notches are respectively matched with the plurality of plug-in blocks, and the plurality of plug-in blocks are provided with limiting openings.

5. The transdermal drug delivery device according to claim 4, characterized in that: The support plate is provided with multiple clamping mechanisms for fixing the multiple plug blocks, and the clamping mechanisms include a second slot, multiple springs, a support block and a push rod, the second slot is opened at the top of the support plate, and the multiple springs are fixedly mounted on an inner wall of one side of the second slot, the support block is slidably mounted in the second slot, a pressing head is fixedly mounted on the top of the support block, and the multiple springs are fixedly connected to the support block, the push rod is fixedly mounted on one side of the support block, and the push rod is plugged into the limit opening.

6. The transdermal drug delivery device according to claim 3, characterized in that: A cloth pad is provided at the bottom of the auxiliary plate, and bayonet holes are opened on both sides of the support plate. The two ends of the cloth pad are respectively matched with the two bayonet holes. A plurality of fixing bolts are fixedly installed on the support plate, and the bottom ends of the plurality of fixing bolts are in contact with the cloth pad.

7. The transdermal drug delivery device according to claim 6, characterized in that: A medicine patch is arranged at the bottom of the cloth pad, and a plurality of auxiliary patches are arranged on the support plate.

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