CN107569786A - Novel ultrasonic probe applied to clinical treatment - Google Patents

Abstract

The invention discloses a novel ultrasonic probe applied to clinical treatment. The present invention adopts a common spherical shell-type ceramic sheet as a focusing transducer, and an oil bag is placed at the front end of the focusing transducer as a medium layer for ultrasonic transmission. The oil bag is closely attached to the focusing transducer, and there is a Wrapped with a layer of elastic film with high elasticity, the inside of the oil capsule is filled with silicone oil with an acoustic impedance similar to water, which is used as a medium for ultrasonic transmission. The present invention perfects the focused transducer probe required for ultrasonic therapy by increasing the design of the oil capsule. The invention is low in cost and compared with the method of applying a large amount of couplant used in the current treatment, it saves the amount of couplant used and reduces the problem of couplant loss caused by the high fluidity of the couplant.

Description

A New Type of Ultrasonic Probe Applied in Clinical Treatment

technical field

The invention mainly relates to a novel ultrasonic therapy probe, in particular to a novel ultrasonic probe applied to clinical treatment.

Background technique

Medical ultrasound mainly has two aspects: ultrasonic detection and the application of ultrasonic energy, which are usually referred to as detection ultrasound and power ultrasound. Among them, detection ultrasound refers to the application of ultrasound in the form of high frequency and low energy in the diagnosis of diseases, such as B-ultrasound imaging, ultrasound Doppler blood flow analysis, ultrasound bone detection and ultrasound endoscopy. The ultrasound intensity in these technical applications is small enough that generally no irreversible biological changes will occur in the tissues passed by the ultrasound. Different from detection ultrasound, therapeutic ultrasound acts on the human body in the form of low frequency and high energy to achieve therapeutic purposes. After the ultrasonic energy gathers in the tissue for a certain period of time, it can cause some changes in the human tissue that are beneficial to the treatment of diseases or to restore the body to health.

High-intensity focused ultrasound (HIFU) therapy is a new research that is more concerned at present. Due to the high focusing ability and large tissue penetrating ability of the ultrasonic wave itself, it can focus the ultrasonic energy on the target tissue, and the ability of the target tissue to absorb all the high-intensity ultrasound makes the target tissue within a few seconds After the temperature rises to a certain temperature, necrosis occurs. This technology can be used in the treatment of deep tumors in neurosurgery, lacrimal gland cancer, and prostate treatment in urology.

However, currently used focused ultrasound therapeutic probes all need to smear a large amount of coupling agent on the human body to ensure that the ultrasonic beam can smoothly enter the human body from the outside to achieve the therapeutic effect. However, the couplant has strong fluidity and cannot be well maintained at the treatment site. In order to achieve a better treatment effect, it is necessary to apply a large amount of couplant many times. Furthermore, since the focusing transducers all have a certain curvature, they cannot fit perfectly with the human body so as to produce poor therapeutic effects.

Contents of the invention

The purpose of the present invention is to provide a new type of ultrasonic probe for clinical treatment to solve the problems raised in the above background.

To achieve the above object, the present invention provides the following technical solutions:

The present invention adopts a common spherical shell type ceramic sheet as a focusing transducer, and an oil bag is placed at the front end of the focusing transducer as a medium layer for ultrasonic transmission. The oil bag is closely attached to the focusing transducer, and the periphery of the oil bag is It is composed of a layer of elastic membrane with high elasticity, and the inside of the oil capsule is filled with silicone oil with an acoustic impedance similar to that of water, which is used as a medium for ultrasonic transmission.

The oil bag is mainly used to replace the previous large amount of heavy coupling agent. After the ultrasonic beam is emitted by the transducer, it enters the oil bag. Applying a small amount of coupling agent on the elastic film can perfectly fit the human body and be used for clinical treatment. The oil capsule and the focusing transducer are closely fitted together to form an ultrasonic probe as a whole.

Compared with the background technology, the beneficial effects that the present invention has are:

The present invention perfects the focusing transducer probe needed for ultrasonic treatment by increasing the design of the oil capsule. The invention is low in cost and compared with the method of applying a large amount of couplant used in the current treatment, it saves the amount of couplant used and reduces the problem of couplant loss caused by the high fluidity of the couplant. In terms of treatment, increasing the design of the oil capsule and the design of the elastic membrane can make the ultrasonic probe fit better with the human body and achieve a more ideal therapeutic effect.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

In the figure: 1, the backing of the focusing transducer, 2, the spherical shell type focusing transducer, 3, the oil capsule, 4, the elastic membrane.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1: the present invention includes a spherical shell type focused ultrasonic transducer 2, the rear end of the transducer is lined with a suitable backing 1, and an oil bag 3 filled with silicone oil is added to the front end of the transducer, and the oil bag is made of elastic Membrane wrapping4. In this embodiment, the oil bag is integrated at the front end of the focusing transducer to form an integrated structure, and the design of adding the oil bag at the front end of the transducer can be used as a medium layer for ultrasonic wave propagation. The oil capsule is wrapped with an elastic film with strong elasticity to fit the living body and achieve better therapeutic effect.

The oil capsule is mainly used to propagate the ultrasonic waves emitted by the focusing transducer, and serves as a better medium layer. The inside of the oil sac is filled with silicone oil whose acoustic impedance is close to that of water, which is more conducive to the propagation of ultrasonic waves in it, and it replaces the previous large amount of couplant, which can indeed achieve the original effect or even better.

The elastic film is used as the outer material of the oil bag to wrap the silicone oil. The elastic film needs to have good elasticity so that it can be flexibly applied to various parts of the treatment body. During treatment, it is only necessary to apply a small amount of coupling agent on the elastic membrane, and then it can directly contact the treatment body to achieve the therapeutic effect.

The following is a further description of the present invention:

Preparation of a novel ultrasonic probe

Step 1) Fabrication of the spherical shell-type focusing transducer. According to various parameters such as different treatment area environments and treatment depths, it is necessary to select the transducer material, size and curvature radius of the transducer. And the focusing transducer is equipped with a suitable backing material to ensure that the sound waves are better emitted to the treatment direction.

Step 2) Equipped with the oil bladder matched with the transducer. Considering different sizes and parameters of spherical shell-type focusing transducers, oil bladders of different specifications need to be equipped. The oil bladders need to be closely attached to the focusing transducers, and should always be fixed at the front end of the transducers as the medium for ultrasonic transmission. Floor.

Step 3) Select the elastic membrane. Because the new type of head needs to act directly on the living body, but because some parts of the living body are not very smooth, to achieve a perfect fit, the material that wraps the oil bag needs to have good elasticity. Therefore, the design of the elastic membrane is very important, and because the new probe is used in clinical experiments, the elastic membrane requires the selection of materials that are not harmful to the human body.

Use of new ultrasound probes

Step 1) Apply a small amount of couplant. Although an oil capsule structure is added at the front end of the probe as a medium layer for ultrasonic transmission, a small amount of coupling agent needs to be applied to the human body to ensure that the ultrasound can pass through the oil capsule and enter the human body to achieve therapeutic effects.

Step 2) Treatment. According to different lesions, adjust the parameters of the focusing transducer, and apply the new probe to the lesions according to the operation method in step 3). Under the action of the new ultrasonic probe, it not only reduces the use of coupling agent, but also increases the patient's comfort experience.

Claims (3)

1. applied to the novel ultrasonic probe of clinical treatment, including focused transducer, it is characterised in that：In described focusing transducing Device front end disposes medium layer of the oil sac as ultrasonic transmission, and described oil sac is brought into close contact with focused transducer, forms ultrasound and visits The entirety of head；The periphery of described oil sac is enclosed with one layer of elastic membrane.

2. the novel ultrasonic probe according to claim 1 applied to clinical treatment, it is characterised in that：Described focusing is changed Energy device uses spherical shell type potsherd.

3. the novel ultrasonic probe according to claim 1 applied to clinical treatment, it is characterised in that：Described oil sac Inside is filled with acoustic impedance with silicone oil similar in water to the medium as ultrasonic wave transmission.