Multi-frequency ultrasonic probe

Abstract

The utility model discloses a multi-frequency ultrasonic probe, which comprises a detection main body, a wafer, a water bag and an elastic sleeve, the detection main body is provided with an inner cavity, and the end part of the detection main body is provided with a piezoelectric region; the wafer comprises a low-frequency annular oscillator group and a high-frequency annular oscillator group, and the low-frequency annular oscillator group and the high-frequency annular oscillator group are concentric and are arranged corresponding to the piezoelectric region; the water bag abuts against the piezoelectric area and covers the piezoelectric area, the water bag is provided with a water cavity, the water bag is connected with a water injection pipe, and the water injection pipe is communicated with the water cavity; the elastic sleeve is fixedly connected with the water bag, and the elastic sleeve can contract and wrap the detection main body; when the water bag is in a full expansion state, the shape of the end part of the water bag is matched with the shape of the end part of the detection main body, so that a distance is formed between the piezoelectric region and the end surface of the water bag. The distance between the piezoelectric area and the skin of the human body is increased through the expandable water bag, so that the detected part is located at the position with the optimal resolution ratio, and the detected part is clearly imaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic diagnostic equipment field, especially in a kind of multi-frequency ultrasonic probe. BACKGROUND

[0002] The utility model discloses a novel ultrasonic small probe, including shell, connecting pipe, ultrasonic transducer group, connecting pipe one end is installed in shell, connecting pipe other end is exposed, the end of connecting pipe exposed in outside installs ultrasonic transducer group, respectively install male joint and rotating device in shell, the male joint of installing in the tail end of shell interior is connected with the rotating device, the core wire is installed in connecting pipe, the one end of core wire is connected with ultrasonic transducer group, the other end of core wire passes through rotating device and is installed on male joint;Ultrasonic transducer group is the transducer containing multi-band, can cooperate different frequency ultrasonic signal circuit in the process of diagnosis and drive switching, to detect the different depth of tissue organ.This equipment is the ultrasonic probe structure of conventional in the art, when ultrasonic propagates in human body, reflection and refraction are generated at the interface of two different tissues, propagates in the same tissue, scattering occurs due to the inhomogeneity of human tissue, ultrasonic passes through different organs and tissue, obtains different reflection and scattering signals, these signals show the interface of viscera and the fine structure inside tissue, thereby providing the basis for diagnosis for doctor, wherein, when checking superficial tumor such as thyroid, breast, subcutaneous, pleura, due to its near-field image resolution is poor, it is still often unclear. SUMMARY

[0003] The utility model aims at at least one of the prior art technical problems existing in the prior art. To this end, the utility model provides a multi-frequency ultrasonic probe, which can clearly image the detected part.

[0004] The multi-frequency ultrasonic probe according to the first aspect of the utility model comprises a detection main body, a wafer, a water bag and an elastic sleeve, the detection main body is provided with an inner cavity, and the end of the detection main body is provided with a piezoelectric area; the wafer comprises a low-frequency ring vibrator group and a high-frequency ring vibrator group, the low-frequency ring vibrator group and the high-frequency ring vibrator group are concentric and correspondingly arranged with the piezoelectric area; the water bag abuts against the piezoelectric area and covers the piezoelectric area, the water bag is provided with a water cavity, the water bag is connected with a water injection pipe, and the water injection pipe is communicated with the water cavity; the elastic sleeve is fixedly connected with the water bag, the elastic sleeve can contract and tightly wrap the detection main body; when the water bag is fully inflated, the shape of the end of the water bag matches the shape of the end of the detection main body, so that the piezoelectric area and the end face of the water bag have a spacing.

[0005] The utility model discloses a kind of multi-frequency ultrasonic probes, at least have following beneficial effects: the distance between piezoelectric area and human skin is increased by inflatable water bag, so that the part to be detected is located in the position of optimal resolution, so that the part to be detected is clearly imaged.

[0006] According to some embodiments of the utility model, the water bag is provided with an embedding hole, and an end of the detection main body can be embedded in the embedding hole, and the end of the detection main body is tightly attached to an inner side surface of the embedding hole.

[0007] According to some embodiments of the utility model, the detection main body comprises a head portion and a holding portion, the head portion is embedded in the embedding hole, and the elastic sleeve wraps the holding portion.

[0008] According to some embodiments of the utility model, an edge of the embedding hole is provided with a limiting portion in the form of a ring, the limiting portion and the head portion are in abutment, so that the entire head portion is completely embedded in the embedding hole.

[0009] According to some embodiments of the utility model, the water bag comprises a mounting portion and an expansion portion, the embedding hole is arranged on one side of the mounting portion, the expansion portion is connected to the other side of the mounting portion, the water cavity is arranged between the surfaces of the expansion portion facing the mounting portion, the water injection pipe is connected to the mounting portion, and the mounting portion is made of PVC.

[0010] According to some embodiments of the utility model, the low-frequency ring vibrator group and the high-frequency ring vibrator group are each provided with multiple layers, and the low-frequency ring vibrator group is located on the inner side of the high-frequency ring vibrator group.

[0011] According to some embodiments of the utility model, one end of the elastic sleeve is sewn or adhered to the outer edge of the head portion.

[0012] According to some embodiments of the utility model, the water injection pipe is provided with a switch valve.

[0013] According to some embodiments of the utility model, the wafer is made of piezoelectric ceramic material, single crystal material or C-mut.

[0014] According to some embodiments of the utility model, the water cavity is filled with saline.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, some will become apparent from the following description, or will be understood through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and embodiments, wherein:

[0017] Figure 1A schematic view of the multi-frequency ultrasonic probe of the embodiment of the present application is shown in the figure.

[0018] Figure 2 A schematic view of the low-frequency ring vibrator group and the high-frequency ring vibrator group of the multi-frequency ultrasonic probe of the embodiment of the present application is shown in the figure.

[0019] 100, probe main body; 110, inner cavity; 120, piezoelectric area; 130, head; 140, holding part;

[0020] 200, wafer; 210, low-frequency ring vibrator group; 220, high-frequency ring vibrator group;

[0021] 300, water bag; 310, water cavity; 320, water injection pipe; 321, switch valve; 330, embedding hole; 331, limiting part;

[0022] 400, elastic sleeve; DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0024] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0025] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0027] Reference Figure 1The utility model discloses a multi -frequency ultrasonic probe, including detection main part 100, wafer 200, water sac 300 and elastic cover 400, and detection main part 100 is provided with inner chamber 110, and the end of detection main part 100 is provided with piezoelectric area 120, wafer 200 includes low -frequency ring transducer group 210 and high -frequency ring transducer group 220, and low -frequency ring transducer group 210 and high -frequency ring transducer group 220 are concentric, and with piezoelectric area 120 correspond setting, water sac 300 abuts at piezoelectric area 120, and covers piezoelectric area 120, and water sac 300 is provided with water chamber 310, and water sac 300 is connected with water injection pipe 320, and water injection pipe 320 and water chamber 310 are communicated, elastic cover 400 and water sac 300 fixed connection, and elastic cover 400 can contract and tightly wrap detection main part 100, when water sac 300 is in full inflation, the shape of the end of water sac 300, and the end shape of detection main part 100 match, to make piezoelectric area 120 and the end surface between water sac 300 have spacing.

[0028] It can be understood that detection main part 100 is as the core support structure of the probe, and the inner chamber 110 is arranged in the detection main part 100, and is used for accommodating and fixing the wafer 200 and the like. The piezoelectric area 120 is the core of the ultrasonic signal transmission and reception, and is responsible for converting electrical energy into ultrasonic energy, or converting the received ultrasonic signal into electrical energy for subsequent processing. The wafer 200 combines the low-frequency ring transducer group 210 and the high-frequency ring transducer group 220 to realize multi-frequency switching, and the two groups of transducers are concentrically arranged and accurately correspond to the piezoelectric area 120. The low-frequency ring transducer group 210 is mainly responsible for the detection of deep tissue, and has a long wavelength and strong penetration; the high-frequency ring transducer group 220 is used for fine imaging of the superficial tissue, and has a short wavelength and high resolution. The water sac 300 abuts against the piezoelectric area 120 and completely covers the area, forming a sealed water chamber 310. Through the water injection pipe 320, liquid can be injected into the water chamber 310, so that the water sac 300 is inflated to an appropriate degree, thereby increasing the distance between the piezoelectric area 120 and the human skin, so that the detected part is located at the position with the best resolution.

[0029] When the detection main part 100 is used to check the human skin, the distance between the piezoelectric area 120 and the human skin is increased through the inflatable water sac 300, so that the detected part is located at the position with the best resolution, and the detected part is clearly imaged. The multi-frequency ultrasonic probe can realize detection and treatment by switching the low frequency and the high frequency. Specifically, different frequencies are switched for lesions at different depths under the skin, and multi-frequency switching can greatly reduce the invalid absorption of ultrasonic energy by non-lesion tissue, avoid side effects in the treatment process, and better adapt to clinical needs.

[0030] In some embodiments, to realize multi-frequency switching, the low-frequency ring transducer group 210 and the high-frequency ring transducer group 220 are arranged in the wafer 200, and the wafer 200 is arranged in the inner chamber 110 of the detection main part 100. Figure 2The low-frequency ring vibrator group 210 and the high-frequency ring vibrator group 220 are both provided with multiple layers, and the low-frequency ring vibrator group 210 is located on the inner side of the high-frequency ring vibrator group 220. The annular probe can be focused in the axial direction, so that the energy focus of the ultrasonic wave is concentrated, energy divergence is avoided, and better focusing effect is achieved. The low-frequency ring vibrator group 210 is arranged on the inner side of the high-frequency ring vibrator group 220, which can effectively save space and enhance the intensity and stability of the ultrasonic signal.

[0031] Specifically, the water cavity 310 is filled with saline. The saline is used to expand the water bag 300, so that there is a spacing between the piezoelectric area 120 and the skin. The acoustic impedance of physiological saline is less different from the human soft tissue, which helps to reduce the reflection and scattering of ultrasonic waves on the interface and improve the transmission efficiency. The water bag 300 can eliminate the air barrier between the skin and the soft tissue by filling the physiological saline, reduce signal attenuation, make the ultrasonic wave penetrate the lesion better, and improve the resolution and contrast of imaging.

[0032] Specifically, in order to ensure that the detection main body 100 can be stably connected with the water bag 300, the water bag 300 is provided with an embedding hole 330, the end of the detection main body 100 can be embedded in the embedding hole 330, and the end of the detection main body 100 is tightly attached to the inner side surface of the embedding hole 330. Preferably, the detection main body 100 includes a head 130 and a holding part 140, the head 130 is embedded in the embedding hole 330, and the elastic sleeve 400 wraps the holding part 140.

[0033] Further, the edge of the embedding hole 330 is provided with a limiting part 331 in the form of a ring, the limiting part 331 abuts against the head 130, so that the entire head 130 is completely embedded in the embedding hole 330. The limiting part 331 has elasticity, which is used to limit the position of the head 130 and avoid the detection main body 100 from being pulled out.

[0034] In some embodiments, the water bag 300 includes a mounting part and an expansion part, the embedding hole 330 is arranged on one side of the mounting part, the expansion part is connected to the other side of the mounting part, the water cavity 310 is arranged between the surfaces of the expansion part facing the mounting part, the water injection pipe 320 is connected to the mounting part, the mounting part is made of PVC, and the saline is injected into the water cavity 310 between the expansion part and the mounting part through the water injection pipe 320, so that the entire water bag 300 is expanded. The mounting part made of PVC can improve the combination between the head 130 and the mounting part, ensure that the detection main body 100 will not be pulled out, and further improve the combination with the detection main body 100 and the service life. The expansion part of the water bag 300 has elasticity, which can adapt to the skin conditions of different patients and ensure good contact and coupling effect.

[0035] Preferably, one end of the elastic sleeve 400 is sewn or adhered to the outer edge of the head 130.

[0036] In some embodiments, the water injection pipe 320 is installed with a switch valve 321.

[0037] In some embodiments, the wafer 200 is made of piezoelectric ceramic material, single crystal material or C-mut.

[0038] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A multi-frequency ultrasound probe, characterized by, The utility model relates to a kind of detection main body (100), be provided with inner cavity (110), the end of the detection main body (100) is provided with piezoelectric area (120);Wafer (200) comprising low frequency ring oscillator group (210) and high frequency ring oscillator group (220), the low frequency ring oscillator group (210) and the high frequency ring oscillator group (220) are concentric, and piezoelectric area (120) is correspondingly arranged;Water bag (300) is abutted to the piezoelectric area (120), and covers the piezoelectric area (120), and the water bag (300) is provided with water cavity (310), and the water bag (300) is connected with water injection pipe (320), and the water injection pipe (320) and the water cavity (310) are communicated;Elastic sleeve (400) is fixedly connected with the water bag (300), and the elastic sleeve (400) can contract and tightly wrap the detection main body (100);When the water bag (300) is in full inflation, the shape of the end of the water bag (300) is matched with the shape of the end of the detection main body (100), so that the piezoelectric area (120) and the end surface between the water bag (300) have spacing. The water bag (300) is provided with an embedding hole (330), and the end of the detection main body (100) can be embedded in the embedding hole (330), and the end of the detection main body (100) is tightly attached to the inner side surface of the embedding hole (330). The detection main body (100) comprises a head portion (130) and a holding portion (140), the head portion (130) is embedded in the embedding hole (330), and the elastic sleeve (400) wraps the holding portion (140). The edge of the embedding hole (330) is provided with a limiting portion (331) in the form of a ring, the limiting portion (331) is in abutment with the head portion (130), so that the entire head portion (130) is completely embedded in the embedding hole (330). The water bag (300) comprises a mounting portion and an inflation portion, the embedding hole (330) is provided on one side of the mounting portion, the inflation portion is connected to the other side of the mounting portion, the water cavity (310) is arranged between the surfaces of the inflation portion towards the mounting portion, the water injection pipe (320) is connected to the mounting portion, and the mounting portion is made of PVC. The low frequency ring oscillator group (210) and the high frequency ring oscillator group (220) are each provided with multiple layers, and the low frequency ring oscillator group (210) is located on the inner side of the high frequency ring oscillator group (220).

2. A multi-frequency ultrasound probe according to claim 1, characterized in that, One end of the elastic sleeve (400) is sewn or adhered to the outer edge of the head portion (130).

3. A multi-frequency ultrasound probe according to claim 2, characterized in that, The water injection pipe (320) is provided with a switch valve (321).

4. A multi-frequency ultrasound probe according to claim 3, characterized in that, The wafer (200) is made of piezoelectric ceramic material, single crystal material or C-mut.

5. A multi-frequency ultrasound probe according to claim 4, characterized in that, The water cavity (310) is filled with saline.

6. A multi-frequency ultrasound probe according to claim 5, characterized in that, ​ 7. A multi-frequency ultrasound probe according to claim 3, wherein, ​ 8. A multi-frequency ultrasound probe according to claim 1, characterized in that, ​ 9. A multi-frequency ultrasound probe according to claim 1, wherein, ​ 10. A multi-frequency ultrasound probe according to claim 1, characterized in that, ​

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