Ultrasonic therapeutic apparatus for diabetic foot

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses an ultrasonic therapeutic instrument for diabetic feet, which comprises a bandage and a plurality of ultrasonic therapeutic heads mounted on the bandage, each ultrasonic therapeutic head can move along each direction relative to the bandage, the plurality of ultrasonic therapeutic heads form two rows on the bandage, and the ultrasonic therapeutic heads are arranged on the bandage. A plurality of ultrasonic treatment heads are arranged in each row, the distance between the corresponding ultrasonic treatment heads in the same row in the two rows is gradually changed in the length direction of the rows, and the bandage is provided with a tying belt used for tying the bandage on the shank or is provided with a male magic tape and a female magic tape. The scheme is used for treating diabetic foot vascular injury, relieving vascular occlusion and improving microcirculation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an ultrasonic therapy device for diabetic foot. Background Technology

[0002] Diabetic foot is a serious complication of diabetes with significant risks, including difficulty in movement, reduced quality of life, and increased risk of infection. If diabetic foot is not treated promptly, the infection can worsen, leading to gangrene, exacerbating systemic infection, and even endangering life.

[0003] Current treatments for diabetic foot primarily focus on managing diabetes itself, mainly through medication, insulin therapy, and lifestyle modifications. However, diabetic foot is often accompanied by poor blood circulation in the lower limbs; therefore, improving blood supply to the lower limbs of diabetic patients is of significant clinical importance in slowing disease progression.

[0004] Low-frequency, low-intensity ultrasound (HFI) has great potential as a safe and non-invasive method for promoting fracture healing, repairing damage, and ultrasound-mediated drug delivery, and has been widely used in the field of ultrasound therapy. The biological effects of HFI on diseases include thermal, mechanical, and cavitation effects. These effects interact to promote blood circulation: specifically, HFI dilates blood vessels, promoting blood circulation and nutrient supply, and improving tissue blood supply and oxygenation. On the other hand, it promotes vascular repair and regeneration: HFI stimulates the proliferation and migration of vascular endothelial cells and smooth muscle cells, promoting the repair and regeneration of damaged blood vessels. However, there is currently a lack of ultrasound therapy devices specifically for diabetic foot. Utility Model Content

[0005] The present invention aims to provide an ultrasonic therapy device for diabetic foot, which can be used to treat vascular damage in diabetic foot, relieve vascular occlusion, and improve microcirculation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An ultrasonic therapy device for diabetic foot includes a bandage and multiple ultrasonic therapy heads mounted on the bandage. Each ultrasonic therapy head can move relative to the bandage in various directions. The multiple ultrasonic therapy heads form two rows on the bandage, with multiple ultrasonic therapy heads in each row. The distance between corresponding ultrasonic therapy heads in the same row on the two rows gradually changes along the length of the row.

[0008] The principle and advantages of this method are as follows: When using this method, the ultrasound treatment head is aligned with the blood vessels in the patient's lower leg. The two rows of ultrasound treatment heads act on the patient's blood vessels simultaneously. The low-frequency, low-intensity ultrasound waves emitted by the ultrasound treatment heads can act on the blood vessel walls through mechanical vibration, causing vasodilation, increasing blood flow, and thus promoting blood circulation. In addition, the low-frequency, low-intensity ultrasound waves can also stimulate the proliferation of cells in the body and promote the synthesis of collagen, which helps to promote the repair and regeneration of damaged blood vessels.

[0009] In addition, this solution uses multiple ultrasound treatment heads, which improves the treatment effect on blood vessels. The spacing between the two rows of ultrasound treatment heads gradually changes along the length of the row, which makes the distribution of ultrasound treatment heads more consistent with the blood vessels on the calf, thus improving the effectiveness of ultrasound treatment heads.

[0010] Preferably, as an improvement, the strap is equipped with a tie for securing the strap to the lower leg, or the strap is provided with male and female Velcro straps to facilitate attaching the ultrasonic therapy device to the patient's lower leg via the tie.

[0011] Preferably, as an improvement, the strap has multiple protrusions at both ends that come together during use, and the gaps between adjacent protrusions allow for easy and intuitive observation of the contact between the ultrasonic treatment head and the skin.

[0012] Preferably, as an improvement, the ultrasonic treatment head rotates within the strap in a ball joint manner, so that the ultrasonic treatment head can rotate flexibly and easily be aimed at the blood vessels in the patient's calf.

[0013] Preferably, as an improvement, the strap is provided with an elastic spherical cavity for mounting the ultrasonic treatment head. The ultrasonic treatment head has a spherical head at one end near the strap, and the spherical head is rotatably connected to the spherical cavity. This solution can ensure that the ultrasonic treatment head can be removed from the strap under strong pulling, thereby facilitating the assembly and disassembly of the ultrasonic treatment head.

[0014] Preferably, as an improvement, the spherical head is provided with a wire hole, and the wire for leading out the ultrasonic treatment head is placed in the wire hole.

[0015] Preferably, as an improvement, the strap is made of double-layer material, with the wires sandwiched between the double layers, and the wires of multiple ultrasonic treatment heads are brought together and led out of the strap in a wire bundle manner.

[0016] Preferably, as an improvement, the ultrasonic treatment head is a surface array ultrasonic probe with composite piezoelectric material. Compared with ordinary probes, the surface array ultrasonic probe can better promote blood circulation and accelerate wound healing, resulting in better treatment effects for diabetic foot.

[0017] Preferably, as an improvement, the array ultrasound treatment head includes, in sequence, an acoustic lens, a matching layer one, a matching layer two, a piezoelectric composite layer, and a backing layer. The piezoelectric composite layer is an array of piezoelectric composite electrodes. The acoustic impedance matching design of the ultrasound treatment head follows the following formula:

[0018]

[0019] Z1 - Acoustic impedance of matching layer one, Z2 - Acoustic impedance of matching layer two, Z Y -Piezoelectric ceramic acoustic impedance, Z F - Load acoustic impedance. Attached Figure Description

[0020] Figure 1 This is a top view of the strap in Embodiment 1 of this utility model.

[0021] Figure 2 for Figure 1 Front view.

[0022] Figure 3 for Figure 1 The left view.

[0023] Figure 4 This is a three-dimensional structural diagram of the ultrasonic treatment head used in this embodiment.

[0024] Figure 5 for Figure 4 Top view.

[0025] Figure 6 for Figure 4 The main view.

[0026] Figure 7 for Figure 4 Front sectional view.

[0027] Figure 8 This is a front sectional view of a local area of ​​the ultrasound treatment head in Example 2.

[0028] Figure 9 This is a top view and a partially enlarged schematic diagram of the piezoelectric composite material of the ultrasonic treatment head in Example 3.

[0029] Figure 10 This is a schematic diagram illustrating the spacing of piezoelectric composite material elements in Example 4. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The reference numerals in the accompanying drawings include: strap 1, ultrasonic treatment head 100, wire hole 10, elastic support base 2, spherical cavity 21, wire harness 3, hook and loop fastener 4, hook and loop fastener 5, acoustic lens 11, upper shell 12, lower shell 13, piezoelectric composite material 16, matching layer one 14, matching layer two 15, backing layer 17, piezoelectric ceramic 161, and epoxy resin 162.

[0032] Example 1

[0033] Combination Figures 1 to 7 An ultrasonic therapy device for diabetic foot includes a bandage 1 and multiple ultrasonic therapy heads 100 mounted on the bandage 1. The multiple ultrasonic therapy heads 100 are arranged in two rows on the bandage 1, with multiple ultrasonic therapy heads 100 in each row. The distance between corresponding ultrasonic therapy heads 100 in the same row in the two rows gradually changes along the length of the row. In this embodiment, there are 4 ultrasonic therapy heads 100 in each row. Each ultrasonic therapy head 100 can move relative to the bandage 1 in various directions. Specifically, each ultrasonic therapy head 100 is ball-jointed to the bandage 1.

[0034] The strap 1 is equipped with Velcro so that the ultrasonic therapy device can be easily attached to the patient's calf by using the hook side 4 and the loop side 5 of the Velcro. The strap 1 has multiple protrusions at both ends that are close to each other when in use. The gaps between adjacent protrusions make it easy to see the contact between the ultrasonic therapy head 100 and the skin. In this embodiment, there are three rows of protrusions, and the Velcro is fixed to the protrusions.

[0035] The strap 1 has an integrally formed elastic support base 2, the same number as the ultrasonic treatment head 100. The elastic support base 2 can be made of any elastic material such as rubber, latex, or silicone. Each elastic support base 2 has an elastic spherical cavity 21 for mounting the ultrasonic treatment head 100. The ultrasonic treatment head 100 has a spherical head at one end near the strap 1. The spherical head is rotatably connected to the spherical cavity 21 to form a ball joint within the spherical cavity 21. Before the ultrasonic treatment head 100 is installed in the elastic spherical cavity 21, the maximum diameter of the elastic spherical cavity 21 is smaller than the diameter of the spherical head. This makes it less likely for the ultrasonic treatment head 100 to fall out after being inserted into the spherical elastic cavity by compression, while also allowing the angle of the ultrasonic treatment head 100 to be adjusted and maintained at the corresponding angle after each adjustment.

[0036] The spherical head has a wire hole 10, which is used to lead out the wire of the ultrasonic treatment head 100. The bottom of the spherical cavity 21 of the elastic support 2 has a through hole to facilitate the wire of the spherical head to be led out along the wire hole 10 and from the through hole. The wires of each ultrasonic treatment head 100 are arranged together to form a wire bundle 3.

[0037] The strap 1 is made of double-layer material. Each layer of the double-layer material is made of soft material. An elastic support 2 is installed on the thicker layer of the double-layer material. The thicker layer of material is made of the same material as the elastic support 2. The remaining layer of material in the double-layer material can be made thinner to facilitate the binding of the strap 1. At the same time, the wire is clamped in the double-layer material, and the wire harness 3 is also located in the middle of the double-layer material and extends out from the strap 1 of the double-layer material.

[0038] The ultrasonic therapy head 100 is a surface array ultrasonic probe with composite piezoelectric material.

[0039] In this embodiment of the ultrasonic therapy device for diabetic foot, during treatment, the ultrasonic therapy head 100 is adjusted by rotating its angle to align with the blood vessels at the patient's treatment site. Under the elastic action of the elastic support seat 2, the angle of the therapy head 100 is ensured not to change easily. When the strap 1 is fixed, the strap 1 surrounds the lower leg, and the Velcro loop side 4 and Velcro hook side 5 are glued together to bind the ultrasonic therapy device to the lower leg. Then, the adhesion between the ultrasonic therapy head 100 and the skin is observed through the gaps between the multiple protrusions on both sides of the strap 1. After confirming that the adhesion is good, the treatment is performed by applying electricity. The therapy head 100 generates a piezoelectric reverse effect and emits therapeutic ultrasonic waves to achieve the therapeutic purpose.

[0040] Example 2

[0041] Combination Figure 8 This embodiment provides a detailed description of the area array ultrasound probe of the ultrasound treatment head 100, as follows:

[0042] The ultrasonic therapy head 100 includes an acoustic lens 11, an upper shell 12, a lower shell 13, a gold-plated piezoelectric composite material 16, a matching layer one 14, a matching layer two 15, and a backing layer 17. The acoustic lens 11 is nested inside the upper shell 12 and then fixed by the matching layer one 14. Its purpose is to concentrate the emitted ultrasound waves, thereby improving the propagation efficiency and detection accuracy. The gold-plated piezoelectric composite material 16 functions as the inverse piezoelectric effect; when a high-frequency electrical signal is applied to the gold-plated piezoelectric composite material 16, high-frequency mechanical vibration, i.e., an ultrasonic signal, is generated. When the acoustic impedances of the two media are different, and their acoustic impedance difference is too large, without a suitable matching layer, most of the ultrasound waves emitted from the piezoelectric element will be reflected back at the piezoelectric element-load interface. The purpose of the matching layers one 14 and two 15 is to increase the coupling of acoustic impedance, matching the impedance of the therapy device with the acoustic impedance of human blood (1.6 MNayls), ensuring that the ultrasound waves generated by the gold-plated piezoelectric composite material 16 can be effectively absorbed by the human blood. The spherical head is integrally formed with the lower shell 1.

[0043] In this embodiment, the acoustic impedance matching design of the ultrasonic treatment head follows the following formula:

[0044]

[0045] Z1 - Acoustic impedance of matching layer one, Z2 - Acoustic impedance of matching layer two, Z Y -Piezoelectric ceramic acoustic impedance, Z F - Load acoustic impedance, the unit of acoustic impedance is MRayls.

[0046] The specific design calculations are shown in the table below:

[0047]

[0048] Example 3

[0049] Example 3 is a further improved design based on Example 2, as detailed below:

[0050] Combination Figure 9 The gold-plated piezoelectric composite material 16 is composed of piezoelectric ceramic 161, epoxy resin 162, and a gold-plated surface layer. The piezoelectric ceramic 161 mainly utilizes the inverse piezoelectric effect to generate ultrasonic waves; the epoxy resin 162 is mainly used to reduce the acoustic impedance of the piezoelectric ceramic 161 after filling and cutting; and the gold-plated surface layer acts as an electrode for signal transmission.

[0051] The manufacturing process of the gold-plated piezoelectric composite material 16 is as follows: First, piezoelectric ceramic material 161 is selected. Vertical or horizontal grooves with equal spacing and depth are cut into the piezoelectric ceramic 161 to remove the material. During the cutting process, to ensure the strength of the piezoelectric ceramic 161 material, horizontal or vertical grooves are cut first, filled with epoxy resin 162, and dried. Then, vertical or horizontal grooves are cut again, and epoxy resin 162 is filled again. Next, excess epoxy resin 162 and excess piezoelectric ceramic 161 on the other side are polished to ensure that the piezoelectric ceramic 161 is completely filled and separated by epoxy resin 162. Finally, gold plating is performed on the surface to obtain a gold-plated layer, and wires are embedded in the positive and negative electrodes to obtain the final gold-plated piezoelectric composite material 16.

[0052] Example 4

[0053] Example 4 is a further design based on Example 3: combining Figure 10 Based on its application in the treatment of diabetic foot with ultrasound, to avoid crosstalk, the spacing between the two array elements needs to be designed to be less than or equal to λ / 2, where λ is the wavelength emitted by the ultrasound transducer. The center frequency of the ultrasound therapy instrument is 2.5MHz, and the speed of ultrasound propagation is approximately 3880m / s. Calculations show:

[0054] λ = 3880 / (2.5x1000000)x1000 = 1.55mm, λ / 2 = 0.8mm, and the slot width between the two array elements is about 0.25mm.

[0055] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An ultrasonic therapy device for diabetic foot, comprising a bandage and multiple ultrasonic therapy heads mounted on the bandage, characterized in that: Each ultrasonic treatment head can move relative to the strap in various directions. Multiple ultrasonic treatment heads form two rows on the strap, with multiple ultrasonic treatment heads in each row. The distance between corresponding ultrasonic treatment heads in the same row on the two rows gradually changes along the length of the row.

2. The ultrasonic therapy device for diabetic foot according to claim 1, characterized in that: The strap is equipped with a tie for securing it to the lower leg, or the strap has male and female Velcro fasteners.

3. The ultrasonic therapy device for diabetic foot according to claim 2, characterized in that: The strap has multiple protrusions at both ends that come together during use, and the gaps between adjacent protrusions allow for easy and direct observation of the contact between the ultrasonic treatment head and the skin.

4. The ultrasonic therapy device for diabetic foot according to claim 2, characterized in that: The ultrasonic treatment head rotates within the strap via a ball joint.

5. An ultrasonic therapy device for diabetic foot according to claim 4, characterized in that: The strap has an elastic spherical cavity for mounting the ultrasonic treatment head. The ultrasonic treatment head has a spherical head at one end near the strap, and the spherical head is rotatably connected to the spherical cavity.

6. The ultrasonic therapy device for diabetic foot according to claim 5, characterized in that: The spherical head is provided with a wire hole, through which an electric wire for leading out the ultrasonic treatment head is inserted.

7. An ultrasonic therapy device for diabetic foot according to claim 6, characterized in that: The strap is made of double-layer material, with the wire sandwiched between the two layers.

8. An ultrasonic therapy device for diabetic foot according to any one of claims 1-7, characterized in that: The ultrasonic treatment head is a surface array ultrasonic probe with composite piezoelectric material.

9. An ultrasonic therapy device for diabetic foot according to claim 8, characterized in that: The array ultrasound probe includes, in sequence, an acoustic lens, a matching layer one, a matching layer two, a piezoelectric composite layer, and a backing layer. The piezoelectric composite layer is an array of piezoelectric composite electrodes. The acoustic impedance matching design of the ultrasound treatment head follows the following formula: Z1 - Acoustic impedance of matching layer one, Z2 - Acoustic impedance of matching layer two, Z Y -Piezoelectric ceramic acoustic impedance, Z F - Load acoustic impedance.

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