Piezoelectric heel pain treatment device

Abstract

The invention belongs to the technical field of heel pain treatment and biomedical engineering, and particularly relates to a piezoelectric heel pain treatment device which comprises a power source, a pressure sensing layer, a control layer, a medicine storage layer and a contact layer which are sequentially pasted from bottom to top. The pressure-sensitive layer is electrically connected with the power supply, the control layer is electrically connected with the pressure-sensitive layer, a release unit is arranged in the middle of the medicine storage layer, the release unit is electrically connected with the control layer, the contact layer is communicated with the medicine storage layer through the release unit, and the contact layer is adhered to the heel part of a patient; the pressure sensing layer senses the pressure change of the foot of a patient, the control layer detects a change signal of the pressure sensing layer to control the opening and closing degree of the release unit, liquid medicine in the medicine storage layer is diffused to the contact layer, and the foot of the patient absorbs the liquid medicine through the contact layer. When the heel pain attacks, the resistance, the current and the deformation of the pressure sensing layer are all changed due to the stress change of the sole of the patient, and after the control layer detects the weak change, the treatment liquid stored in the medicine storage layer is released to the contact layer, so that the treatment purpose is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of the treatment of heel pain and biomedical engineering, and particularly relates to a piezoelectric device for treating heel pain. Background Art

[0002] Heel pain is a disease caused by lesions in the bone, joints, bursae, fascia, etc. of the heel. Common causes include plantar fasciitis, heel spurs, Achilles tendinitis, etc. The main symptoms are pain and discomfort in the heel area, without obvious redness and swelling, and difficulty walking. There are various methods for treating heel pain, including surgical treatment, drug treatment, and physical therapy. Although traditional treatment methods are effective, they are not convenient to wear and cannot promptly apply the drug to the heel pain area. Therefore, we propose a piezoelectric device for treating heel pain to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a piezoelectric device for treating heel pain to solve the above problems.

[0004] To achieve the above purpose, the present invention provides the following solution:

[0005] A piezoelectric device for treating heel pain, comprising: a power source, a pressure-sensitive layer, a control layer, a medicine storage layer, and a contact layer, which are sequentially pasted from bottom to top;

[0006] The pressure-sensitive layer is electrically connected to the power source, the control layer is electrically connected to the pressure-sensitive layer, a release unit is provided in the middle of the medicine storage layer, the release unit is electrically connected to the control layer, the contact layer is communicated with the medicine storage layer through the release unit, and the contact layer is pasted on the heel of the patient;

[0007] The pressure-sensitive layer senses the change in the pressure of the patient's foot, detects the change signal of the pressure-sensitive layer through the control layer to control the opening degree of the release unit, so that the liquid medicine in the medicine storage layer diffuses to the contact layer, and the patient's foot absorbs the liquid medicine through the contact layer.

[0008] Optionally, the pressure-sensitive layer includes a pressure-sensitive conductive rubber film and a lead titanate piezoelectric film, and the pressure-sensitive conductive rubber film and the lead titanate piezoelectric film are electrically connected;

[0009] The lead titanate piezoelectric film is pasted above the pressure-sensitive conductive rubber film, and the power source is pasted below the pressure-sensitive conductive rubber film;

[0010] The resistance of the pressure-sensitive conductive rubber film becomes smaller as the pressure increases, so that the current flowing from the power source to the lead titanate piezoelectric film increases, causing the lead titanate piezoelectric film to deform, and the control layer is used to detect the deformation of the lead titanate piezoelectric film.

[0011] Optionally, the power source is a button battery, which is pasted under the pressure-sensitive conductive rubber film. The button battery is electrically connected to the pressure-sensitive conductive rubber film.

[0012] Optionally, the control layer includes a liquid plaster release flexible circuit, which is pasted above the lead titanate piezoelectric film. The liquid plaster release flexible circuit is electrically connected to the lead titanate piezoelectric film. The liquid plaster release flexible circuit is used to detect the deformation of the lead titanate piezoelectric film. The liquid plaster release flexible circuit is pasted under the medicine storage layer. The liquid plaster release flexible circuit is electrically connected to the release unit. The liquid plaster release flexible circuit is used to control the opening degree of the release unit.

[0013] After the liquid plaster release flexible circuit is powered on, it generates Joule heat.

[0014] Optionally, the medicine storage layer includes a liquid plaster layer, which is pasted above the liquid plaster release flexible circuit and under the contact layer. The liquid plaster layer is provided with a medicine storage cavity for storing liquid medicine. The release unit is arranged in the middle of the liquid plaster layer.

[0015] Optionally, the release unit includes a liquid plaster release port, which is electrically connected to the liquid plaster release flexible circuit. The liquid plaster release flexible circuit is used to control the opening degree of the liquid plaster release port.

[0016] Optionally, the contact layer includes a liquid plaster gauze cotton layer. The bottom of the liquid plaster gauze cotton layer is bonded to the top of the liquid plaster layer. The liquid plaster gauze cotton layer is communicated with the medicine storage cavity of the liquid plaster layer through the liquid plaster release port. The top of the liquid plaster gauze cotton layer is bonded to the heel of the patient.

[0017] Optionally, the button battery, the pressure-sensitive conductive rubber film, the lead titanate piezoelectric film, the liquid plaster release flexible circuit, the liquid plaster layer and the liquid plaster gauze cotton layer are bonded by a transparent sticky medical tape.

[0018] Optionally, the button battery, the pressure-sensitive conductive rubber film, the lead titanate piezoelectric film, the liquid plaster release flexible circuit and the liquid plaster release port are electrically connected by a flexible power cable.

[0019] Optionally, the button battery, the pressure-sensitive conductive rubber film, the lead titanate piezoelectric film, the liquid plaster release flexible circuit, the liquid plaster layer and the liquid plaster gauze cotton layer are all made of flexible materials and match the contour of the heel.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] When in use, the device is adhered to the heel part. When the heel pain attacks, the force on the heel where the heel pain is located on the patient's sole changes, resulting in changes in the resistance, current, and deformation of the pressure-sensitive layer. After the control layer detects the weak changes, the treatment liquid stored in the medicine storage layer is released through the release unit to the contact layer, so that the patient's heel is in contact with the liquid medicine, achieving the treatment purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic diagram of the present invention being worn;

[0025] Among them, 1. button battery; 2. pressure-sensitive conductive rubber film; 3. lead titanate piezoelectric film; 4. flexible circuit for liquid plaster release; 5. liquid plaster layer; 6. liquid plaster release port; 7. liquid plaster gauze cotton layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Referring to Figures 1 to 2 , the present invention discloses a piezoelectric heel pain treatment device, including: a power supply, a pressure-sensitive layer, a control layer, a medicine storage layer, and a contact layer that are sequentially adhered from bottom to top;

[0029] The pressure-sensitive layer is electrically connected to the power supply, the control layer is electrically connected to the pressure-sensitive layer, a release unit is provided in the middle of the medicine storage layer, the release unit is electrically connected to the control layer, the contact layer is communicated with the medicine storage layer through the release unit, and the contact layer is adhered to the patient's heel.

[0030] The pressure-sensitive layer senses the pressure change of the patient's foot. The control layer detects the change signal of the pressure-sensitive layer to control the opening and closing degree of the release unit, so that the liquid medicine in the medicine storage layer diffuses to the contact layer, and the patient's foot absorbs the liquid medicine through the contact layer.

[0031] When in use, stick this device on the heel part. When the heel pain attacks, the force change of the heel pain on the patient's sole causes changes in the resistance, current and deformation of the pressure-sensitive layer. After the control layer detects a weak change, the treatment liquid stored in the medicine storage layer is released to the contact layer, so that the patient's heel contacts the liquid medicine to achieve the treatment purpose.

[0032] As an alternative embodiment, the pressure-sensitive layer includes a pressure-sensitive conductive rubber film 2 and a lead titanate piezoelectric film 3, and the pressure-sensitive conductive rubber film 2 and the lead titanate piezoelectric film 3 are electrically connected;

[0033] The lead titanate piezoelectric film 3 is pasted above the pressure-sensitive conductive rubber film 2, and the power supply is pasted below the pressure-sensitive conductive rubber film 2;

[0034] The resistance of the pressure-sensitive conductive rubber film 2 becomes smaller as the pressure increases, which increases the current flowing from the power supply to the lead titanate piezoelectric film 3, causing the lead titanate piezoelectric film 3 to deform. The control layer is used to detect the deformation of the lead titanate piezoelectric film 3.

[0035] As an alternative embodiment, the power supply is a button battery 1. The button battery 1 is pasted below the pressure-sensitive conductive rubber film 2, and the button battery 1 is electrically connected to the pressure-sensitive conductive rubber film 2.

[0036] As an alternative embodiment, the control layer includes a liquid plaster release flexible circuit 4. The liquid plaster release flexible circuit 4 is pasted above the lead titanate piezoelectric film 3, and the liquid plaster release flexible circuit is electrically connected to the lead titanate piezoelectric film 3. The liquid plaster release flexible circuit 4 is used to detect the deformation of the lead titanate piezoelectric film 3. The liquid plaster release flexible circuit 4 is pasted below the medicine storage layer, and the liquid plaster release flexible circuit 4 is electrically connected to the release unit. The liquid plaster release flexible circuit 4 is used to control the opening and closing degree of the release unit;

[0037] The liquid plaster release flexible circuit 4 generates Joule heat after being energized.

[0038] The contour of the liquid plaster release flexible circuit 4 is consistent with that of the lead titanate piezoelectric film 3, and the contour of the liquid plaster release flexible circuit 4 covers the lead titanate piezoelectric film 3. The liquid plaster release flexible circuit 4 is distributed with flexible circuit cables with sensing and control functions. When the sole pressure situation changes, the current flowing to the lead titanate piezoelectric film 3 decreases, and the vibration frequency of the lead titanate piezoelectric film 3 becomes lower. After the liquid plaster release flexible circuit 4 senses the change in the vibration situation of the lead titanate piezoelectric film 3, it adjusts the opening degree of the release port of the release unit.

[0039] As an alternative implementation, the medicine storage layer includes a liquid plaster layer 5. The liquid plaster layer 5 is pasted above the liquid plaster release flexible circuit 4 and below the contact layer. The liquid plaster layer 5 is provided with a medicine storage cavity for storing liquid medicine, and the release unit is provided in the middle of the liquid plaster layer 5.

[0040] As an alternative implementation, the release unit includes a liquid plaster release port 6. The liquid plaster release port 6 is electrically connected to the liquid plaster release flexible circuit 4, and the liquid plaster release flexible circuit 4 is used to control the opening and closing degree of the liquid plaster release port 6.

[0041] As an alternative implementation, the contact layer includes a liquid plaster gauze cotton layer 7. The bottom of the liquid plaster gauze cotton layer 7 is bonded to the top of the liquid plaster layer 5. The liquid plaster gauze cotton layer 7 is communicated with the medicine storage cavity of the liquid plaster layer 5 through the liquid plaster release port 6, and the top of the liquid plaster gauze cotton layer 7 is bonded to the heel of the patient.

[0042] As an alternative implementation, the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3, the liquid plaster release flexible circuit 4, the liquid plaster layer 5 and the liquid plaster gauze cotton layer 7 are bonded together by a transparent sticky medical tape.

[0043] As an alternative implementation, the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3, the liquid plaster release flexible circuit 4 and the liquid plaster release port 6 are electrically connected by a flexible power cable.

[0044] As an alternative implementation, the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3, the liquid plaster release flexible circuit 4, the liquid plaster layer 5 and the liquid plaster gauze cotton layer 7 are all made of flexible materials and match the contour of the heel.

[0045] A piezoelectric heel pain treatment device includes a button battery 1, a pressure-sensitive conductive rubber film 2, a lead titanate piezoelectric film 3, a liquid plaster release flexible circuit 4, a liquid plaster layer 5, a liquid plaster release port 6, a liquid plaster gauze cotton layer 7, a transparent sticky medical tape and a flexible power cable.

[0046] Bond the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3, the liquid plaster release flexible circuit 4, the liquid plaster layer 5, the liquid plaster release port 6, and the liquid plaster gauze cotton layer 7 together through a transparent sticky medical tape layer, and stick this device to the heel through the transparent sticky medical tape layer.

[0047] The flexible power cable is used to realize the circuit connection between the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3 and the liquid plaster release flexible circuit 4.

[0048] When in use, stick this device to the heel area. When the heel pain attacks, the force on the patient's heel changes due to the heel pain, causing the resistance of the pressure-sensitive conductive rubber film 2 to change. With the voltage of the button battery 1 remaining constant, the current passing through the flexible power cable changes; after the current through the lead titanate piezoelectric film 3 changes, its shape changes, and according to the slight change, the flexible circuit 4 for releasing the liquid plaster is controlled, and the therapeutic liquid stored in the liquid plaster layer 5 is released through the unidirectional liquid plaster release port 6 and remains on the liquid plaster gauze cotton layer 7 for a long time to promote the long-term absorption of the therapeutic liquid by the affected area.

[0049] When the flexible circuit 4 for releasing the liquid plaster is energized, it emits Joule heat, which can slightly heat the affected area to further promote the absorption of the therapeutic liquid by the affected area.

[0050] Through the above settings, the present invention can perform precise regulation of drug release according to the actual situation of the heel pain attack, and effectively promote the absorption of the drug by the affected area for a long time, thereby achieving a good curative effect on treating heel pain.

[0051] In order to solve the problems of unstable drug concentration, short action time, and large side effects in traditional heel pain therapies, the present invention aims to utilize the piezoelectric characteristics of the piezoelectric film to sense the heel pain attack situation, and perform precise regulation of drug release in terms of time, position, and dosage, and promote the long-term absorption of the drug by the heel area, thereby effectively relieving heel pain.

[0052] When the heel pain attacks, due to the pain, the pressure of the foot touching the ground becomes smaller, the electricity becomes larger, the current leading to the lead titanate piezoelectric film decreases, the flutter becomes weaker, and the frequency becomes lower, then the solenoid valve is driven to release the liquid medicine. The lower the frequency, the more liquid medicine is released.

[0053] The flexible power cable is distributed throughout the lower half area of the whole device to realize the circuit connection between the button battery 1, the pressure-sensitive conductive rubber film 2, the lead titanate piezoelectric film 3, and the flexible circuit 4 for releasing the liquid plaster;

[0054] The button battery 1 is located at the bottom of the device and is exposed on the bottom surface of the device, which is convenient for replacement when the battery power is exhausted;

[0055] The pressure-sensitive conductive rubber film 2 is located above the button battery 1. When the heel pain attacks, the force on the patient's sole changes, and the pressure change on the pressure-sensitive conductive rubber film 2 causes its resistance to change. With the voltage of the button battery 1 remaining unchanged, the current passing through the flexible power cable changes;

[0056] The lead titanate piezoelectric film 3, the flexible circuit 4 for releasing the liquid plaster, and the liquid plaster layer 5 are adhesively bonded from bottom to top and are located above the pressure-sensitive conductive rubber film 2;

[0057] After the pressure-sensitive conductive rubber film 2 detects the force change of heel pain, the lead titanate piezoelectric film 3 deforms due to the current change through the flexible power cable, and controls the liquid plaster release flexible circuit 4 according to the weak change, and releases the treatment liquid in the liquid plaster layer 5 through the liquid plaster release port 6;

[0058] The liquid plaster release port 6 is located on the upper surface of the liquid plaster layer, its opening and closing is regulated by the liquid plaster release flexible circuit 4, and it is a one-way outlet, and the liquid plaster cannot return through the liquid plaster release port 6 after being released;

[0059] Furthermore, the liquid plaster release port 6 adopts a valve-type solenoid valve structure. When the frequency changes, it can be opened for release, and closed after release, and the outside liquid cannot flow back.

[0060] The liquid plaster gauze cotton layer 7 is located above the liquid plaster layer 5 and the liquid plaster release port 6, and its surface shape fits the physiological structure of the heel part, so as to better fit the heel part;

[0061] The treatment liquid released from the liquid plaster release port 6 remains on the liquid plaster gauze cotton layer 7 to promote the long-term absorption of the liquid plaster by the skin;

[0062] After the liquid plaster release flexible circuit 4 releases the liquid plaster, the treatment liquid is stored on the liquid plaster gauze cotton layer 7, which can not only promote absorption, but also generate Joule heat when the liquid plaster release flexible circuit 4 works, so as to slightly heat the affected area and promote the absorption of the plaster by the affected area.

[0063] Through the ingenious use of pressure-sensitive materials and the carefully designed layered structure, when the piezoelectric heel pain treatment device has a heel pain attack, the components in the device can perform precise time, position, and dose-controlled drug release according to the attack situation of the heel part (manifested as different pressure conditions at different positions on the sole). At the same time, improvements are made in the device structure and function to promote the absorption of the drug by the skin of the affected area. The ingenious stacking between different hierarchical structures also realizes the miniaturization and light weight of the structure while ensuring its treatment function, and can adapt to the application scenarios of foot wear.

[0064] This device uses flexible materials, which is convenient for arbitrarily shaping the device, and can make its overall structure and shape conform to ergonomics. This structure and shape make the device easy to stick to the patient's heel part, fit closely with the heel part, effectively promote the dynamic real-time treatment of heel pain, and also make the device friendly to the human body and easy to wear.

[0065] The treatment device of the present invention can be applied to the treatment of heel pain. During an attack, by sensing the force change of heel pain, it dynamically detects the attack situation and adjusts the drug release in real time. In addition, the delicate structure and function of the device further promote the absorption of drugs by the skin of the heel, and can effectively exert the therapeutic effect of the drugs on heel pain.

[0066] Compared with the prior art, in the present invention, the force change of heel pain on the sole of the patient drives the piezoresistive conductive rubber film, causing its resistance to change. As a result, the current passing through the flexible power cable changes, leading to dynamic changes in the lead titanate piezoelectric film, controlling the flexible circuit for releasing liquid plaster, and releasing different doses of liquid medicine through the one-way liquid plaster release port, realizing the dynamic release and control of the liquid medicine. At the same time, the flexible circuit for releasing liquid plaster can slightly heat the affected area to promote the absorption of the plaster. Compared with the traditional heel pain treatment method, the device proposed in the present invention adopts the piezoresistive conductive rubber film as a piezoelectric material, and at the same time, through the drug release technology, it releases drugs with precise doses according to the actual pressure situation of the affected area, and can accurately regulate the drug release rate, position and time, eliminating the disadvantages such as unstable drug concentration and uncontrollable action time. The combination of the flexible circuit and the drug release device further realizes the precise control of drug release, and the structure conforms to ergonomics, facilitating sticking on the heel for treatment.

[0067] In summary, compared with the traditional heel pain treatment method, the piezoelectric heel pain treatment device designed in the present invention has a light and human-friendly structure, realizes the dynamic detection of the attack situation of heel pain and the dynamic regulation of drug release, can release drugs with precise controllability of position, time and dose according to the attack situation of heel pain, and further promotes drug absorption in terms of structure and function, effectively relieving heel pain.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0069] The above embodiments are only used to describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A piezoelectric heel pain treatment device, characterized in that: include: The power supply, pressure-sensing layer, control layer, drug storage layer and contact layer are sequentially pasted from bottom to top; The pressure-sensitive layer is electrically connected to the power source, the control layer is electrically connected to the pressure-sensitive layer, a release unit is provided in the middle of the drug storage layer, the release unit is electrically connected to the control layer, the contact layer is connected to the drug storage layer through the release unit, and the contact layer is attached to the heel of the patient; The pressure-sensing layer senses the pressure change of the patient's foot, and the control layer detects the change signal of the pressure-sensing layer to control the opening and closing degree of the release unit, so that the medicine in the medicine storage layer diffuses to the contact layer, and the patient's foot absorbs the medicine through the contact layer.

2. A piezoelectric heel pain treatment device according to claim 1, characterized in that: The pressure-sensitive layer comprises a pressure-sensitive conductive rubber film (2) and a lead titanate piezoelectric film (3), and the pressure-sensitive conductive rubber film (2) and the lead titanate piezoelectric film (3) are electrically connected; The lead titanate piezoelectric film (3) is pasted on the top of the pressure-sensitive conductive rubber film (2), and the power source is pasted on the bottom of the pressure-sensitive conductive rubber film (2); The resistance of the pressure-sensitive conductive rubber film (2) decreases as the pressure increases, so that the current from the power source to the lead titanate piezoelectric film (3) increases, causing the lead titanate piezoelectric film (3) to deform. The control layer is used to detect the deformation of the lead titanate piezoelectric film (3).

3. A piezoelectric heel pain treatment device according to claim 2, characterized in that: The power source is a button battery (1), and the button battery (1) is adhered below the pressure-sensitive conductive rubber film (2). The button battery (1) is electrically connected to the pressure-sensitive conductive rubber film (2).

4. A piezoelectric heel pain treatment device according to claim 3, characterized in that: The control layer includes a liquid plaster release flexible circuit (4), the liquid plaster release flexible circuit (4) is pasted on the top of the lead titanate piezoelectric film (3), the liquid plaster release flexible circuit is electrically connected to the lead titanate piezoelectric film (3), the liquid plaster release flexible circuit (4) is used to detect the deformation of the lead titanate piezoelectric film (3), the liquid plaster release flexible circuit (4) is pasted below the drug storage layer, the liquid plaster release flexible circuit (4) is electrically connected to the release unit, and the liquid plaster release flexible circuit (4) is used to control the opening and closing degree of the release unit; The liquid plaster release flexible circuit (4) generates Joule heat after being energized.

5. A piezoelectric heel pain treatment device according to claim 4, characterized in that: The drug storage layer includes a liquid plaster layer (5), the liquid plaster layer (5) is pasted on the top of the liquid plaster release flexible circuit (4), the liquid plaster layer (5) is pasted on the bottom of the contact layer, the liquid plaster layer (5) is provided with a drug storage cavity for storing drug liquid, and the release unit is opened in the middle of the liquid plaster layer (5).

6. A piezoelectric heel pain treatment device according to claim 5, characterized in that: The release unit comprises a liquid plaster release port (6), the liquid plaster release port (6) is electrically connected to the liquid plaster release flexible circuit (4), and the liquid plaster release flexible circuit (4) is used to control the opening and closing degree of the liquid plaster release port (6).

7. A piezoelectric heel pain treatment device according to claim 6, characterized in that: The contact layer comprises a liquid plaster gauze layer (7), the bottom of the liquid plaster gauze layer (7) is bonded to the top of the liquid plaster layer (5), the liquid plaster gauze layer (7) is connected to the drug storage cavity of the liquid plaster layer (5) through a liquid plaster release port (6), and the top of the liquid plaster gauze layer (7) is bonded to the heel of the patient.

8. A piezoelectric heel pain treatment device according to claim 7, characterized in that: The button battery (1), the pressure-sensitive conductive rubber film (2), the lead titanate piezoelectric film (3), the liquid plaster release flexible circuit (4), the liquid plaster layer (5) and the liquid plaster gauze layer (7) are bonded together by a transparent adhesive medical tape.

9. A piezoelectric heel pain treatment device according to claim 7, characterized in that: The button battery (1), the pressure-sensitive conductive rubber film (2), the lead titanate piezoelectric film (3), the liquid plaster release flexible circuit (4) and the liquid plaster release port (6) are electrically connected via a flexible power cable.

10. A piezoelectric heel pain treatment device according to claim 7, characterized in that: The button battery (1), the pressure-sensitive conductive rubber film (2), the lead titanate piezoelectric film (3), the liquid plaster releasing flexible circuit (4), the liquid plaster layer (5) and the liquid plaster gauze layer (7) are all made of flexible materials and match the contour of the heel.

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