Ultrasound ablation devices and apparatus

Abstract

The embodiment of the present application provides an ultrasonic ablation device and equipment. The ultrasonic ablation device is used for being selectively placed in a cavity of a human body and performing ultrasonic ablation on a tissue to be ablated in the human body, and comprises a catheter and a deformation transducer. Two ends of the catheter are respectively a liquid inlet end and a liquid outlet end, and a positioning capsule is arranged on the outer wall close to the liquid inlet end, the positioning capsule is used for being placed in the cavity and being deformed to selectively position the catheter. The deformation transducer is arranged on the outer periphery of the positioning capsule, and under the action of the deformation force of the positioning capsule, the deformation transducer is deformed to selectively emit ultrasonic energy along a first direction, and the first direction can form an included angle of 10 degrees to 90 degrees with the axial direction of the catheter. The embodiment of the present application can effectively expand the size of the deformation transducer, and then can make the treatment range of the ultrasonic ablation device wider, and effectively improve the treatment effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic ablation, in particular, the present application relates to an ultrasonic ablation device and equipment. BACKGROUND

[0002] At present, the existing transurethral treatment of prostate disease ultrasonic ablation device only has ultrasonic transducer arranged in the urethra. Affected by the size and shape of the urethra, the transducer is small in size and the emitting surface is cylindrical, so that the ultrasonic energy output is small and rapidly attenuates with the increase of radius, resulting in limited treatment range and poor treatment effect. Therefore, the existing transurethral treatment of prostate disease ultrasonic ablation device is limited by the structure size and shape, resulting in small output power, limited treatment range and poor treatment effect. SUMMARY

[0003] The present application aims at the shortcomings of the prior art, and provides an ultrasonic ablation device and equipment to solve the technical problems of limited treatment range and poor treatment effect in the prior art.

[0004] In a first aspect, the present application provides an ultrasonic ablation device for selectively placing in a cavity of a human body and performing ultrasonic ablation on a tissue to be ablated in the human body, comprising: a catheter and a deformable transducer; two ends of the catheter are respectively an inlet end and an outlet end, and a positioning sac is arranged on the outer wall close to the inlet end, the positioning sac is used to be placed in the cavity and deformed to selectively position the catheter; the deformable transducer is arranged on the outer periphery of the positioning sac, and under the action of the deformation force of the positioning sac, the deformable transducer is deformed to selectively emit ultrasonic energy along a first direction, the first direction can form an included angle of 10 degrees to 90 degrees with the axial direction of the catheter.

[0005] In an embodiment of the present application, the ultrasonic ablation device further comprises a fixed transducer, the fixed transducer is arranged on the outer periphery of the catheter and located between the positioning sac and the outlet end, and the fixed transducer is used to emit ultrasonic energy along the radial direction of the catheter.

[0006] In an embodiment of the present application, the fixed transducer is wrapped on the outer wall of the catheter and arranged in the circumferential direction of the catheter.

[0007] In an embodiment of the present application, the deformable transducer comprises a plurality of sub-transducers, the plurality of sub-transducers are arranged side by side in the circumferential direction of the positioning sac, and the plurality of sub-transducers selectively form an umbrella-shaped structure under the action of the deformation force of the positioning sac.

[0008] In an embodiment of the present application, the fixed end of the plurality of sub-transducers is arranged close to the liquid outlet end and is movably connected to the catheter; the movable end of the plurality of sub-transducers is arranged close to the liquid inlet end and is positioned outside the positioning capsule.

[0009] In an embodiment of the present application, the fixed end is hingedly arranged to the outer wall of the catheter, and the movable end is positioned outside the positioning capsule by the positioning member.

[0010] In an embodiment of the present application, the positioning member is a flexible ring sleeved outside the plurality of sub-transducers; or the positioning member is a connecting rod between any two adjacent sub-transducers, and the connecting rod can be broken under the deformation force of the positioning capsule.

[0011] In an embodiment of the present application, the sub-transducer is a sheet transducer or a focusing transducer.

[0012] In an embodiment of the present application, the catheter is a urinary catheter or a rectal catheter.

[0013] In a second aspect, the embodiments of the present application provide an ultrasonic ablation device, which comprises a driving power supply and the ultrasonic ablation device provided in the first aspect.

[0014] The technical scheme provided by the embodiments of the present application has the beneficial technical effects of:

[0015] In the embodiments of the present application, the deforming transducer is arranged outside the positioning capsule, and the emission direction of the deforming transducer is changed by the deformation of the positioning capsule, so that the size of the deforming transducer can be effectively enlarged, and the treatment range of the ultrasonic ablation device can be wider, and the treatment effect can be effectively improved. Further, the embodiments of the present application not only have a simple structure, but also can effectively reduce the application and maintenance costs.

[0016] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 FIG. 1 is a structural schematic diagram of an ultrasonic ablation device provided in an embodiment of the present application;

[0019] Figure 2 FIG. 2 is a structural schematic diagram of the ultrasonic ablation device provided in the embodiment of the present application in cooperation with a human body. DETAILED DESCRIPTION

[0020] The present application is described in detail below, examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar components or components having the same or similar functions throughout. In addition, if a detailed description of known technology is unnecessary for the features of the present application shown, it is omitted. The embodiments described below by reference to the accompanying drawings are exemplary, only for explaining the present application, and cannot be interpreted as a limitation of the present application.

[0021] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have meanings consistent with meanings in the context of the present technology, and should not be interpreted to have ideal or excessively formal meanings unless specifically defined as such.

[0022] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems are described in detail below with specific examples.

[0023] The present application provides an ultrasonic ablation device for selectively placing in a cavity 101 of a human body 100 and performing ultrasonic ablation on the tissue to be ablated in the human body 100. The structural diagram of the ultrasonic ablation device is shown in Figure 1 The two ends of the catheter 1 are respectively the liquid inlet end 11 and the liquid outlet end 12, and the positioning capsule 3 is arranged on the outer wall close to the liquid inlet end 11, the positioning capsule 3 is used to be placed in the cavity 101 and deformed to selectively position the catheter 1; the deformed transducer 2 is arranged outside the positioning capsule 3, under the deforming force of the positioning capsule 3, the deformed transducer 2 is deformed to selectively emit ultrasonic energy along the first direction, the first direction can form an angle of 10 degrees to 90 degrees with the axial direction of the catheter 1.

[0024] As shown in Figure 1 and Figure 2As shown, the catheter 1 can be a urinary catheter in particular, which can be selectively placed in a cavity 101 of a human body 100, for example, the liquid inlet end 11 of the catheter 1 can be placed in the bladder of the human body 100, and the liquid outlet end 12 is located outside the human body 100, for example, the liquid outlet end 12 can be used to guide the liquid out of the human body 100. The positioning capsule 3 can be arranged near the liquid inlet end 11, and when the liquid inlet end 11 and the positioning capsule 3 enter the cavity 101, the positioning capsule 3 can be filled with different volumes of liquid to achieve different deformations of the positioning capsule 3, so as to fix the catheter 1 in the cavity 101. The deformation transducer 2 can be arranged outside the positioning capsule 3, and when the positioning capsule 3 is not deformed, the deformation transducer 2 can enter the cavity 101 with the positioning capsule 3. When the positioning capsule 3 is deformed, the deformation transducer 2 can be deformed under the action of the deformation of the positioning capsule 3. After the deformation of the deformation transducer 2, the deformation transducer 2 can be located in the triangular area of the bladder, so that the deformation transducer 2 can emit ultrasonic energy along the first direction, so as to realize ultrasonic ablation of the tissue to be ablated, for example, the deformation transducer 2 can ablate the tissue to be ablated in the prostate 102. Further, the first direction can form an angle with the axial direction of the catheter 1, and the value of the angle can be adjusted according to the size of the deformation force of the positioning capsule 3, that is, the deformation transducer 2 can change the emission direction according to the deformation of the positioning capsule 3. For example, the value of the angle can be 10 degrees, 15 degrees, 30 degrees, 45 degrees, 75 degrees or 90 degrees, but the embodiments of the present application are not limited thereto.

[0025] The embodiments of the present application are provided with a deformation transducer outside the positioning capsule, and the emission direction of the deformation transducer is changed by the deformation of the positioning capsule 3, so that the size of the deformation transducer can be effectively expanded, and the treatment range of the ultrasonic ablation device can be wider, and the treatment effect can be effectively improved. Further, the embodiments of the present application not only have simple structure, but also can effectively reduce the application and maintenance cost.

[0026] It should be noted that the embodiments of the present application do not limit the specific type of the catheter 1 and the specific implementation of the deformation transducer 2, for example, the catheter 1 can also be a rectal catheter 1, and the deformation transducer 2 can deform with the positioning capsule 3. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust and set according to the actual situation.

[0027] In an embodiment of the present application, as shown in Figure 1 and Figure 2As shown, the ultrasonic ablation device further comprises a fixed transducer 4 arranged on the outer periphery of the catheter 1 between the positioning balloon 3 and the liquid outlet 12, and the fixed transducer 4 is used to emit ultrasonic energy along the radial direction of the catheter 1. Optionally, the fixed transducer 4 is wrapped on the outer wall of the catheter 1 and arranged in a circumferential direction along the catheter 1. The fixed transducer 4 can be arranged on the outer periphery of the catheter 1, and the fixed transducer 4 can emit ultrasonic energy along the radial direction of the catheter 1. For example, the fixed transducer 4 and the catheter 1 can be fixedly connected in a bonding manner, but the embodiments of the present application are not limited thereto. The fixed transducer 4 can be located between the positioning balloon 3 and the liquid outlet 12, and the fixed transducer 4 cooperates with the deformed transducer 2 to achieve ablation of the tissue to be ablated in the prostate 102 alone or together, which not only effectively enlarges the size of the transducer, but also effectively improves the power of the transducer. By using the above design, not only can the ultrasonic energy output be higher, but also the treatment method can be more flexible, and the treatment range can be enlarged and the treatment effect can be improved.

[0028] It should be noted that the embodiments of the present application do not limit the specific implementation of the fixed transducer 4. For example, the fixed transducer 4 can be cylindrical or a plurality of sheet transducers arranged in a ring shape. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust and set according to actual conditions.

[0029] In an embodiment of the present application, as shown in Figure 1 and Figure 2 The deformed transducer 2 comprises a plurality of sub-transducers 21 arranged side by side in a circumferential direction of the positioning balloon 3, and the plurality of sub-transducers 21 selectively assume an umbrella-shaped structure under the deformation force of the positioning balloon 3. The plurality of sub-transducers 21 can be arranged side by side in the circumferential direction of the positioning balloon 3, so as to further improve the treatment range and effectively improve the treatment effect. The sub-transducers 21 and the positioning balloon 3 can be fixedly connected in a bonding manner, and the plurality of sub-transducers 21 can assume an umbrella-shaped structure by the deformation of the positioning balloon 3. When the positioning balloon 3 is contracted, the plurality of sub-transducers 21 assume a cylindrical structure, so as to facilitate the removal of the catheter 1 from the cavity 101. By using the above design, not only can the treatment range be enlarged and the treatment effect be improved, but also the structure of the ultrasonic ablation device can be simpler, and the treatment method can be more flexible and easy to use.

[0030] It should be noted that the embodiments of the present application do not limit the specific implementation of the sub-transducer 21. For example, the sub-transducer 21 can also be arranged on the outer periphery of the positioning balloon 3 in other connection manners. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust and set according to actual conditions.

[0031] In an embodiment of the present application, as shown in Figure 1 and Figure 2As shown, the fixed ends 22 of the plurality of sub-transducers 21 are arranged close to the liquid outlet end 12 and movably connected to the catheter 1; the movable ends 23 of the plurality of sub-transducers 21 are arranged close to the liquid inlet end 11 and positioned outside the positioning capsule 3. Alternatively, the fixed ends 22 of the plurality of sub-transducers 21 can be positioned at the root of the positioning capsule 3 and arranged close to the liquid outlet end 12. Specifically, the fixed ends 22 of the plurality of sub-transducers 21 can pass through a flexible shaft (not shown in the figure), which can fix the plurality of sub-transducers 21 along the radial direction of the catheter 1; when the positioning capsule 3 extrudes the movable ends 23, the plurality of sub-transducers 21 can be deformed to form an umbrella-shaped structure, so that the deformed transducer 2 can emit ultrasonic energy along the axial direction of the catheter 1. It should be noted that the specific connection mode of the fixed ends 22 and the catheter 1 is not limited in the embodiments of the present application, for example, the fixed ends 22 of the plurality of sub-transducers 21 can be adhered to the catheter 1 through a flexible member. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust and set according to the actual situation.

[0032] In an embodiment of the present application, as shown in Figure 1 and Figure 2 the fixed ends 22 are hingedly arranged with the outer wall of the catheter 1, and the movable ends 23 are positioned outside the positioning capsule 3 through positioning members. Alternatively, the fixed ends 22 can be directly hingedly arranged with the outer wall of the catheter 1, or the fixed ends 22 can be hingedly arranged with the fixed members (not shown in the figure) arranged on the outer wall of the catheter 1, which is not limited in the embodiments of the present application. Alternatively, the positioning members are flexible rings (not shown in the figure) sleeved outside the plurality of sub-transducers 21; or the positioning members are connecting rods (not shown in the figure) between any two adjacent sub-transducers 21, which can be broken under the deformation force of the positioning capsule 3. By using the above design, the embodiments of the present application can have simple structure and can effectively reduce the application and manufacturing body.

[0033] In an embodiment of the present application, the sub-transducers 21 are sheet transducers or focused transducers. The use of sheet transducers can further reduce the volume of the embodiments of the present application, so as to facilitate the application of the embodiments of the present application. In addition, the use of focused transducers can facilitate the positioning of the tissue to be ablated, so as to make the treatment method more flexible, thereby further improving the treatment effect.

[0034] In an embodiment of the present application, the catheter 1 is a urinary catheter or a rectal catheter 1.

[0035] Based on the same concept, the embodiments of the present application provide an ultrasonic ablation device, which comprises a driving power supply and the ultrasonic ablation device provided in the above embodiments.

[0036] By using the embodiments of the present application, at least the following beneficial effects can be achieved:

[0037] The embodiment of the present application includes a deformable transducer on the outside of the positioning capsule. The deformation of the positioning capsule changes the transmission direction of the deformable transducer, effectively expanding the size of the deformable transducer, thereby extending the therapeutic range of the ultrasonic ablation device and effectively improving the treatment effect. Furthermore, the embodiment of the present application not only has a simple structure but also effectively reduces application and maintenance costs.

[0038] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

[0039] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] The above description is only part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An ultrasonic ablation device, which is selectively placed in a human body cavity and performs ultrasonic ablation on tissue to be ablated in the prostate, characterized in that: The application relates to an ultrasonic ablation device. The ultrasonic ablation device comprises a catheter and a deformation transducer. The catheter has a liquid inlet end and a liquid outlet end, and is used for guiding liquid out of a human body. The deformation transducer is arranged on the outer periphery of the positioning capsule. The deformation transducer is selectively deformed to emit ultrasonic energy along a first direction under the deformation force of the positioning capsule.

2. The ultrasonic ablation device of claim 1, wherein, The first direction forms an angle of 10-90 degrees with the axial direction of the catheter.

3. The ultrasonic ablation device of claim 1, wherein, The angle is adjusted according to the deformation force of the positioning capsule.

4. The ultrasonic ablation device of claim 3, wherein the distal end of the ultrasonic transducer is configured to be positioned within the patient's body. The ultrasonic ablation device further comprises a fixed transducer.

5. The ultrasonic ablation device of claim 4, wherein the distal end of the ultrasonic transducer is configured to be positioned within the patient's body. The fixed transducer is arranged on the outer periphery of the catheter.

6. The ultrasonic ablation device of claim 5, wherein the distal end of the ultrasonic transducer is configured to be positioned within the patient's body. The fixed transducer is used for emitting ultrasonic energy along the radial direction of the catheter.

7. The ultrasonic ablation device of claim 6, wherein the distal end of the ultrasonic transducer is configured to be positioned within the patient's body. The fixed transducer is arranged between the deformation transducer and the liquid outlet end.

8. The ultrasonic ablation device of claim 1, wherein the distal end of the ultrasonic transducer is configured to be positioned within the patient's body. The fixed transducer and the deformation transducer are used for ablation of the tissue to be ablated.

9. An ultrasonic ablation device, characterized by, The fixed transducer is arranged on the outer wall of the catheter. The fixed transducer is arranged along the circumferential direction of the catheter. The deformation transducer comprises a plurality of sub-transducers. The sub-transducers are arranged along the circumferential direction of the positioning capsule. The sub-transducers are selectively in the form of an umbrella under the deformation force of the positioning capsule. The fixed ends of the sub-transducers are arranged close to the liquid outlet end and are movably connected to the catheter. The movable ends of the sub-transducers are arranged close to the liquid inlet end and are positioned outside the positioning capsule. The fixed ends are hingedly connected to the outer wall of the catheter. The movable ends are positioned outside the positioning capsule by positioning members. The positioning members are flexible rings arranged outside the sub-transducers. The positioning members are connecting rods arranged between any two adjacent sub-transducers. The connecting rods are broken under the deformation force of the positioning capsule. The sub-transducers are sheet transducers or focused transducers. The catheter is a urinary catheter or a rectal catheter. The ultrasonic ablation device further comprises a driving power supply.

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