Prostate ultrasonic ablation device
By designing a prostate ultrasonic ablation device including an ablation catheter, an ultrasonic transducer, an airbag and a driving member, the problems of inaccurate treatment and large damage in the prior art are solved, and efficient ablation of prostate hyperplasia tissue and protection of the urethral wall are achieved.
Patent Information
- Application Number
- CN202421380497.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-17
AI Technical Summary
Existing prostate treatment methods such as chemotherapy, hormone therapy and prostatectomy have side effects of medication or have great damage to the human body. Although ultrasound therapy is non-invasive, it is difficult to effectively fix the position, resulting in energy loss and burns of the urethral wall.
A prostate ultrasonic ablation device is designed, including an ablation catheter, an ultrasonic transducer, an airbag and a drive member. By inserting the ablation catheter into the urethra, the inlet channel passes into the liquid to expand the airbag, fixing the device position; the ultrasonic transducer emits ultrasonic waves to focus on ablation of prostate tissue; the airbag reduces energy loss and protects the urethra wall; the driving member rotates the ultrasonic transducer to adapt to different positions.
Effective ablation of prostate hyperplasia tissue is achieved, damage to the urethral wall and energy loss are reduced, and the accuracy and safety of treatment are improved.
Smart Images
Figure CN222841427U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of prostate treatment, and in particular, to a prostate ultrasonic ablation device. Background Art
[0002] Prostate hyperplasia is one of the common diseases in middle-aged and elderly men. At present, the common treatments for prostate hyperplasia include prostatectomy, chemotherapy, hormone therapy and laser therapy. However, chemotherapy and hormone therapy have certain drug side effects, and prostatectomy causes large wounds and causes great damage to the human body. Ultrasound is non-invasive and is rapidly growing into a specific treatment.
[0003] Based on this, the present application provides a prostate ultrasound ablation device. Utility Model Content
[0004] The present application provides a prostate ultrasound ablation device, which can not only ablate prostate hyperplasia tissue, but also is not likely to damage other tissues such as the urethral wall.
[0005] This application is implemented as follows:
[0006] The present application provides a prostate ultrasound ablation device, comprising:
[0007] An ablation catheter, wherein the ablation catheter has a separated liquid inlet channel, a liquid outlet channel and a wire channel along its length direction; and a mounting groove for mounting an ultrasonic transducer is provided on the side surface of one end of the ablation catheter;
[0008] an ultrasonic transducer, fixedly disposed in the mounting groove; and
[0009] An airbag, the airbag is wrapped at one end of the ablation catheter, the airbag has a notch at the position of the mounting groove, and the liquid inlet channel and the liquid outlet channel are both connected to the inside of the airbag, the liquid inlet channel is used to supply liquid into the airbag to expand the airbag, and the liquid outlet channel is used to discharge the liquid in the airbag;
[0010] A mounting seat, on which the ablation catheter is rotatably supported;
[0011] A driving member is fixed to the mounting seat and is in transmission connection with the ablation catheter to drive the ablation catheter to rotate relative to the mounting seat.
[0012] In a possible implementation manner, the edges of the mounting groove are all wrapped with the airbag.
[0013] In a possible implementation, a liquid inlet branch is provided on one side of the ablation catheter, the liquid inlet branch is communicated with the liquid inlet channel, and the liquid inlet branch extends into the interior of the airbag.
[0014] In a possible implementation, the angle between the liquid inlet branch and the ablation catheter is 30-60°.
[0015] In a possible implementation manner, the airbag is provided with a liquid outlet, the liquid outlet channel is provided with a first through hole, and the liquid outlet is communicated with the first through hole.
[0016] In a possible embodiment, the ablation catheter includes a first section, a second section, and a third section arranged in sequence, the ultrasonic transducer is arranged in the second section, the outer diameter of the second section is smaller than the first section and the third section, the balloon wraps the second section, and the balloon is confined to the second section.
[0017] In a possible implementation manner, the third section is connected to the mounting seat, and an end portion of the first section is arc-shaped.
[0018] In a possible implementation, the ultrasonic transducer is a single-chip transducer.
[0019] In a possible implementation, the liquid inlet channel is connected to a liquid inlet pipe, the liquid outlet channel is connected to a liquid outlet pipe, a connecting wire is provided in the wire channel, and the connecting wire is electrically connected to the ultrasonic transducer.
[0020] In a possible implementation, the liquid inlet pipe is connected to the liquid inlet channel via a first rotating joint, and the liquid outlet pipe is connected to the liquid inlet channel via a second rotating joint.
[0021] This application has at least the following beneficial effects:
[0022] The prostate ultrasonic ablation device of the present application is implemented by inserting the ablation catheter into the urethra, and introducing liquid through the liquid inlet channel to make the airbag expand and close to the urethral wall, so that the position of the prostate ultrasonic ablation device is relatively fixed, and ultrasound is emitted by the ultrasonic transducer, focusing on the prostate to perform ultrasonic ablation on the hyperplastic prostate. Among them, the airbag has a notch at the position of the mounting groove, and the ultrasonic transducer is fixed in the mounting groove, so that the ultrasonic wave emitted by the ultrasonic transducer is not blocked by the airbag, which can reduce energy loss. Moreover, the airbag is wrapped in the ablation catheter, so that the ultrasonic transducer does not directly contact the urethral wall, so that the ultrasonic transducer is not easy to cause burns to the urethral wall. In addition, the liquid in the airbag can also cool the ultrasonic transducer to reduce burns to the urethral wall. And by driving the ablation catheter to rotate relative to the mounting seat through the driving member, the ultrasonic transducer can be rotated accordingly, so as to perform ultrasonic ablation on different positions of different prostates. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a schematic diagram of the structure of a prostate ultrasound ablation device according to an embodiment of the present application;
[0025] Figure 2 A schematic diagram of the cooperation between the ablation catheter and the airbag according to an embodiment of the present application;
[0026] Figure 3 A cross-sectional view of an ablation catheter according to an embodiment of the present application;
[0027] Figure 4 This is a partial structural schematic diagram of another prostate ultrasonic ablation device according to an embodiment of the present application.
[0028] Icons: 10-prostate ultrasonic ablation device; 11-ablation catheter; 111-first section; 112-second section; 113-third section; 114-liquid inlet branch; 115-liquid inlet channel; 116-liquid outlet channel; 1161-first through hole; 117-wire channel; 12-ultrasonic transducer; 13-airbag; 131-liquid outlet; 132-notch; 14-mounting seat; 15-driving member; 161-liquid inlet pipe; 162-liquid outlet pipe; 164-first rotary joint; 165-second rotary joint; 171-rotating bearing; 172-connecting member. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0031] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example
[0033] The present application embodiment provides a prostate ultrasound ablation device 10, please refer to Figure 1 , which includes an ablation catheter 11, an ultrasonic transducer 12, an airbag 13, a mounting seat 14 and a driving member 15.
[0034] The ablation catheter 11 is provided with a liquid inlet channel 115, a liquid outlet channel 116 and a wire channel 117 along its length direction (refer to Figure 3 ), the liquid inlet channel 115, the liquid outlet channel 116 and the wire channel 117 are isolated from each other. A mounting groove is provided on one end side of the ablation catheter 11, and the ultrasonic transducer 12 is fixedly arranged in the mounting groove.
[0035] Please refer to Figure 1 and Figure 2 The airbag 13 is wrapped around one end of the ablation catheter 11, and the airbag 13 has a notch 132 at the position of the mounting groove, and the liquid inlet channel 115 and the liquid outlet channel 116 are both connected to the inside of the airbag 13, the liquid inlet channel 115 is used to supply liquid into the airbag 13 to expand the airbag 13, and the liquid outlet channel 116 is used to discharge the liquid in the airbag 13. Optionally, the ultrasonic transducer 12 is a single-chip transducer.
[0036] The prostate ultrasonic ablation device 10 of the present application is implemented by inserting the ablation catheter 11 into the urethra, and introducing liquid through the liquid inlet channel 115 so that the airbag 13 expands and comes close to the urethral wall, thereby making the position of the prostate ultrasonic ablation device 10 relatively fixed, and emitting ultrasound through the ultrasonic transducer 12, focusing on the prostate to perform ultrasonic ablation on the hyperplastic prostate. Among them, the airbag 13 has a notch 132 at the position of the mounting groove, and the ultrasonic transducer 12 is fixed in the mounting groove, so that the ultrasonic wave emitted by the ultrasonic transducer 12 is not blocked by the airbag 13, which can reduce energy loss. Moreover, the airbag 13 is wrapped in the ablation catheter 11, so that the ultrasonic transducer 12 will not directly contact the urethral wall, so that the ultrasonic transducer 12 is not easy to cause burns to the urethral wall. In addition, the liquid in the airbag 13 can also cool the ultrasonic transducer 12 to reduce burns to the urethral wall.
[0037] The ablation catheter 11 is rotatably supported on the mounting seat 14, and the driving member 15 is fixed to the mounting seat 14 and is transmission-connected with the ablation catheter 11 to drive the ablation catheter 11 to rotate relative to the mounting seat 14. Exemplarily, the ablation catheter 11 is rotatably connected to the mounting seat 14 through a rotating bearing 171, the ablation catheter 11 is connected to the inner tube of the rotating bearing 171, and the mounting seat 14 is connected to the outer tube of the rotating bearing 171. The driving member 15 is a driving motor, the housing of the driving motor is fixed to the mounting seat 14 through a connecting member 172, the driving shaft of the driving motor is coaxially connected to the ablation catheter 11, and the driving member 15 can drive the ablation catheter 11 to rotate relative to the mounting seat 14, and can make the ultrasonic transducer 12 rotate accordingly, so as to perform ultrasonic ablation on different positions of the prostate.
[0038] Among them, the liquid inlet channel 115 is connected to a liquid inlet pipe 161, the liquid outlet channel 116 is connected to a liquid outlet pipe 162, and the wire channel 117 has a connecting wire and a power supply, the connecting wire is electrically connected to the ultrasonic transducer 12, and the power supply supplies power to the ultrasonic transducer 12 through the connecting wire. Liquid can be introduced into the liquid inlet channel 115 through the liquid inlet pipe 161, and the liquid in the liquid outlet channel 116 can be discharged through the liquid outlet pipe 162. Exemplarily, the liquid inlet pipe 161 is connected to the liquid inlet channel 115 through a first rotating joint 164, and the liquid outlet pipe 162 is connected to the liquid outlet channel 116 through a second rotating joint 165. In addition, the wire channel 117 is arranged along the axis of the catheter.
[0039] When the driving member 15 drives the ablation catheter 11 to rotate relative to the mounting seat 14, since the liquid inlet tube 161 is connected to the liquid inlet channel 115 through the first rotating joint 164, the first rotating joint 164 enables the liquid inlet tube 161 and the liquid inlet channel 115 to rotate relative to each other, and the liquid outlet tube 162 is connected to the liquid outlet channel 116 through the second rotating joint 165, and the second rotating joint 164 enables the liquid outlet tube 162 and the liquid outlet channel 116 to rotate relative to each other, the ablation catheter 11 can more conveniently supply and discharge liquid when rotating. Optionally, both the liquid inlet tube 161 and the liquid outlet tube 162 are provided with valves, and the liquid inlet and liquid discharge can be controlled by the valves. Moreover, since the wire channel 117 is arranged along the axis of the catheter, it is not easy to cause the wires in the wire channel to be disturbed and entangled when the ablation catheter 11 rotates.
[0040] Furthermore, the edges of the mounting grooves are all wrapped with airbags 13, and the liquid in the airbags 13 can absorb the heat generated by the ultrasonic transducer 12 for better heat exchange, thereby cooling the ultrasonic transducer 12 to better reduce burns to the urethral wall.
[0041] The ablation catheter 11 includes a first section 111, a second section 112 and a third section 113 which are arranged in sequence (see Figure 4 ), the ultrasonic transducer 12 is arranged in the second section 112, the outer diameter of the second section 112 is smaller than that of the first section 111 and the third section 113, the airbag 13 is wrapped in the second section 112, and the airbag 13 is confined in the second section 112. Since the first section 111 and the third section 113 block the airbag 13, the airbag 13 is better fixed in the second section 112, which can prevent the airbag 13 from falling off the catheter. Among them, the end of the first section 111 is arc-shaped, and when the catheter is inserted into the urethra, it is easier to guide the ablation catheter 11 to enter, and it is not easy to cause damage to the urethra. Optionally, the first section 111, the second section 112, the third section 113 and the airbag 13 are coaxially arranged, so that the ablation catheter 11 is located at the midline position of the airbag 13.
[0042] Among them, a liquid inlet branch 114 is provided on one side of the ablation catheter 11, and the liquid inlet branch 114 is connected with the liquid inlet channel 115, and the liquid inlet branch 114 extends into the airbag 13. Since the liquid inlet branch 114 extends into the airbag 13, the airbag 13 is less likely to shift and fall off under the restriction of the liquid inlet branch 114. Moreover, the liquid inlet branch 114 extending into the airbag 13 makes it more convenient to supply liquid into the airbag 13. In addition, the airbag 13 is provided with a liquid outlet 131, and the liquid outlet channel 116 is provided with a first through hole 1161, and the liquid outlet 131 is connected to the first through hole 1161. The liquid in the airbag 13 can be discharged from the liquid outlet 131 through the liquid outlet channel 116.
[0043] Exemplarily, the angle between the liquid inlet branch 114 and the ablation catheter 11 is 30-60°. When the balloon 13 and the ablation catheter 11 are assembled, it is convenient to insert the liquid inlet branch 114 into the balloon 13. Optionally, the angle between the liquid inlet branch 114 and the ablation catheter 11 is any one of 30°, 35°, 40°, 45°, 50°, 55° and 60° or a value between any two thereof.
[0044] It is understandable that in other embodiments, the liquid inlet branch 114 may not be provided, and the ablation catheter 11 may correspondingly be provided with a second through hole, which is connected to the liquid inlet channel 115 , so that the supplied liquid flows from the liquid inlet channel 115 through the second through hole into the airbag 13 .
[0045] In summary, the prostate ultrasonic ablation device 10 of the present application inserts the ablation catheter 11 into the urethra, and passes liquid through the liquid inlet channel 115 to make the airbag 13 expand and close to the urethral wall, so that the position of the prostate ultrasonic ablation device 10 is relatively fixed, and ultrasound is emitted by the ultrasonic transducer 12, focusing on the prostate to perform ultrasonic ablation on the hyperplastic prostate. Among them, the airbag 13 has a notch 132 at the position of the mounting groove, and the ultrasonic transducer 12 is fixed in the mounting groove, so that the ultrasonic wave emitted by the ultrasonic transducer 12 is not blocked by the airbag 13, which can reduce energy loss. Moreover, the airbag 13 is wrapped in the ablation catheter 11, so that the ultrasonic transducer 12 will not directly contact the urethral wall, so that the ultrasonic transducer 12 is not easy to cause burns to the urethral wall. In addition, the liquid in the airbag 13 can also cool the ultrasonic transducer 12 to reduce burns to the urethral wall. By driving the ablation catheter 11 to rotate relative to the mounting seat 14 through the driving member 15 , the ultrasonic transducer 12 can be rotated accordingly, thereby performing ultrasonic ablation on different positions of different prostates.
[0046] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A prostate ultrasound ablation device, characterized in that: include: An ablation catheter, wherein the ablation catheter has a separated liquid inlet channel, a liquid outlet channel and a wire channel along its length direction; and a mounting groove for mounting an ultrasonic transducer is provided on the side surface of one end of the ablation catheter; an ultrasonic transducer, fixedly disposed in the mounting groove; and An airbag, the airbag is wrapped at one end of the ablation catheter, the airbag has a notch at the position of the mounting groove, and the liquid inlet channel and the liquid outlet channel are both connected to the inside of the airbag, the liquid inlet channel is used to supply liquid into the airbag to expand the airbag, and the liquid outlet channel is used to discharge the liquid in the airbag; A mounting seat, on which the ablation catheter is rotatably supported; A driving member is fixed to the mounting seat and is in transmission connection with the ablation catheter to drive the ablation catheter to rotate relative to the mounting seat.
2. The prostate ultrasound ablation device according to claim 1, characterized in that: The airbag is wrapped around the edges of the mounting groove.
3. The prostate ultrasound ablation device according to claim 1, characterized in that: A liquid inlet branch is provided on one side of the ablation catheter. The liquid inlet branch is communicated with the liquid inlet channel and extends into the interior of the airbag.
4. The prostate ultrasonic ablation device according to claim 3, characterized in that: The angle between the liquid inlet branch and the ablation catheter is 30-60°.
5. The prostate ultrasonic ablation device according to claim 1, characterized in that: The airbag is provided with a liquid outlet, the liquid outlet channel is provided with a first through hole, and the liquid outlet is communicated with the first through hole.
6. The prostate ultrasonic ablation device according to any one of claims 1 to 5, characterized in that: The ablation catheter includes a first section, a second section and a third section arranged in sequence, the ultrasonic transducer is arranged in the second section, the outer diameter of the second section is smaller than the first section and the third section, the balloon wraps the second section, and the balloon is confined in the second section.
7. The prostate ultrasonic ablation device according to claim 6, characterized in that: The third section is connected to the mounting seat, and the end of the first section is arc-shaped.
8. The prostate ultrasonic ablation device according to any one of claims 1 to 5, characterized in that: The ultrasonic transducer is a single-chip transducer.
9. The prostate ultrasonic ablation device according to any one of claims 1 to 5, characterized in that: The liquid inlet channel is connected to a liquid inlet pipe, the liquid outlet channel is connected to a liquid outlet pipe, and a connecting wire is arranged in the wire channel, and the connecting wire is electrically connected to the ultrasonic transducer.
10. The prostate ultrasonic ablation device according to claim 9, characterized in that: The liquid inlet pipe is connected to the liquid inlet channel via a first rotating joint, and the liquid outlet pipe is connected to the liquid inlet channel via a second rotating joint.