CN117653944A - System for high-intensity focused ultrasonic wave - Google Patents
System for high-intensity focused ultrasonic wave Download PDFInfo
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- CN117653944A CN117653944A CN202311780035.7A CN202311780035A CN117653944A CN 117653944 A CN117653944 A CN 117653944A CN 202311780035 A CN202311780035 A CN 202311780035A CN 117653944 A CN117653944 A CN 117653944A
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Abstract
The invention belongs to the technical field of ultrasonic focusing, and discloses a system for focusing ultrasonic waves with high intensity; the ultrasonic focusing device solves the problems of high ultrasonic focusing point energy and great side effect on patients in treatment of the ultrasonic focusing device in the prior art; the device specifically comprises a lying bed, a lifting mechanism, a probe moving bracket, a zoom type ultrasonic probe and a control system; the bed is provided with a lifting mechanism, and the top of the lifting mechanism is provided with a probe moving bracket; a zoom type ultrasonic probe is arranged on the probe moving bracket; the probe moving support and the zoom type ultrasonic probe are electrically connected with the control system. The high-intensity focused ultrasonic system is provided with the lifting mechanism, and the lifting mechanism can drive the probe moving bracket and the zoom type ultrasonic probe connected with the probe moving bracket to move up and down, so that the system is suitable for various treatment scenes in treatment; the zoom type ultrasonic probe can realize zooming of an ultrasonic focusing point, and avoid local burn of a patient caused by ultrasonic wavelength time focusing.
Description
Technical Field
The invention relates to the technical field of ultrasonic focusing, in particular to a system for focusing ultrasonic waves with high intensity.
Background
Along with the development of ultrasonic technology, the ultrasonic technology is widely applied in the medical field, particularly, high-intensity focusedultrasound (HIFU) is used for treating tumors, compared with the traditional surgery or chemotherapy mode, the damage to patients is small, noninvasive treatment can be realized, and the ultrasonic technology is extremely important in clinical application. The ultrasonic treatment device for treating tumor usually adopts a spherical focusing mode, the ultrasonic waves emitted by each point are all directed to the sphere center, and a high-intensity ultrasonic focusing point is formed at the position of the sphere center. Focusing the high-intensity ultrasonic focusing point on the focus part of the patient to generate transient high-temperature effect, wherein the temperature can reach 65-100 ℃, and the high temperature can cause coagulation necrosis to the tumor tissue in the focus area, lose proliferation, infiltration and transfer capacity, thereby realizing the purpose of tumor treatment.
In the existing ultrasonic focusing device, a high-energy ultrasonic focusing point is obtained by adopting a mode that a plurality of ultrasonic transducers transmit ultrasonic waves simultaneously and focus the ultrasonic waves; in the embodiment of the patent, the ultrasonic waves emitted by eight ultrasonic piezoelectric transducers are focused, and the obtained ultrasonic focusing point has smaller focal spot and higher energy; patent publication CN103052426a discloses a focused ultrasonic wave generating device which uses three or more ultrasonic transducers to perform ultrasonic wave focusing to obtain a high-energy ultrasonic wave focusing point. Although the higher the energy of the ultrasonic focus point, the better the therapeutic effect, the higher the energy of the ultrasonic focus point, the side effects on the patient during the treatment are also increased simultaneously. In particular, when high-energy ultrasonic waves are focused on a focus part during treatment, a patient feels pain; although this pain can be alleviated by the administration of local anesthetics or analgesics to the patient prior to treatment, the patient's perception is reduced after administration of the drug, and local burns can be caused to the patient either by treatment with ultrasound wavelength time or by inaccurate focusing of the ultrasound. In the treatment process, medical staff need to strictly control the output energy and the focusing position of ultrasonic waves, monitor the skin temperature of a patient in real time, immediately stop treatment and take corresponding treatment measures once the abnormal rise of the skin temperature is found, so that the operation speed is reduced, and the operation progress is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a system for focusing ultrasonic waves with high intensity, so as to solve the problems of high ultrasonic focusing point energy and great side effect on patients in treatment of an ultrasonic focusing device in the prior art.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a system for focusing ultrasonic waves with high intensity comprises a lying bed, a lifting mechanism, a probe moving bracket, a zoom type ultrasonic probe and a control system; the bed is provided with a lifting mechanism, and the top of the lifting mechanism is provided with a probe moving bracket; a zoom type ultrasonic probe is arranged on the probe moving bracket; the probe moving support and the zoom type ultrasonic probe are electrically connected with the control system.
In the scheme, a lifting mechanism is designed on the bed, and can drive the probe moving bracket and the zoom type ultrasonic probe connected with the probe moving bracket to move up and down, so that the device is suitable for various treatment scenes in treatment; the zoom type ultrasonic probe can realize zooming of an ultrasonic focusing point, and avoid local burn of a patient caused by ultrasonic wavelength time focusing.
Further, the probe moving bracket comprises a bracket shell, and the bracket shell is connected to the top of the lifting mechanism; the probe mounting piece is connected to the transverse driving assembly and the longitudinal driving assembly in a sliding manner; a zoom type ultrasonic probe is arranged below the probe mounting piece.
In the scheme, a transverse driving assembly and a longitudinal driving assembly are designed in the bracket shell, and the zoom type ultrasonic probe can be driven to move through the transverse driving assembly and the longitudinal driving assembly; the zoom type ultrasonic probe can be driven to move along the focus area of the patient in the treatment process, so that accurate ultrasonic treatment is realized.
Further, the transverse driving assembly comprises two transverse lead screws which are rotatably connected to the inner wall of the bracket shell; the two transverse lead screws are provided with transverse moving rods, and two ends of each transverse moving rod are respectively in threaded connection with the two transverse lead screws; the probe mounting piece is connected to the transverse moving rod in a sliding manner; one of the transverse screw rods is in transmission connection with a transverse motor, the transverse motor is arranged on the inner wall of the bracket shell, and the two transverse screw rods are in transmission connection;
the longitudinal driving assembly comprises two longitudinal lead screws, the two longitudinal lead screws are perpendicular to the direction of the transverse lead screws, and the two longitudinal lead screws are rotatably connected to the inner wall of the bracket shell; the two longitudinal lead screws are provided with longitudinal moving rods, and two ends of each longitudinal moving rod are respectively in threaded connection with the two longitudinal lead screws; the probe mounting piece is connected to the longitudinal lead screws in a sliding way, one longitudinal lead screw is connected with a longitudinal motor in a transmission way, the longitudinal motor is arranged on the inner wall of the bracket shell, and the two longitudinal lead screws are connected in a transmission way;
the transverse screw rod and the longitudinal motor are connected with a control system;
the control system drives the transverse screw rod to rotate through the transverse motor, and the transverse moving rod moves along the transverse screw rod under the spiral drive of the transverse screw rod and drives the probe mounting piece to move transversely; the control system drives the longitudinal screw rod to rotate through the longitudinal motor, and the longitudinal moving rod moves along the longitudinal screw rod under the spiral drive of the longitudinal screw rod and drives the probe mounting piece to longitudinally move.
In the scheme, two ends of the transverse moving rod are respectively connected with two transverse lead screws, two ends of the longitudinal moving rod are respectively connected with two longitudinal lead screws, and when the transverse motor and the longitudinal motor respectively drive the transverse lead screws and the longitudinal lead screws to rotate, the transverse moving rod and the longitudinal moving rod can stably move, so that the zoom type ultrasonic probe stably operates; the design ensures that the vibration amplitude of the ultrasonic focusing point is smaller when the zooming type ultrasonic probe moves in treatment, and improves the stability of the zooming type ultrasonic probe.
Further, the zoom type ultrasonic probe comprises a probe shell, and the probe shell is arranged on the probe mounting piece; a spherical crown body is arranged in the probe shell; an ultrasonic image acquisition instrument is arranged in the center of the spherical crown body; six round holes are formed in the edge of the spherical crown body, and the six round holes are uniformly distributed on the spherical crown body in a surrounding mode; each round hole is movably connected with an ultrasonic transducer; the end part of each ultrasonic transducer is connected with the zooming component; the zoom component drives six ultrasonic transducers to adjust angles so as to adjust ultrasonic focusing points of the six ultrasonic transducers;
the ultrasonic image acquisition instrument and the ultrasonic transducer are both connected with the control system.
In the scheme, the ultrasonic waves emitted by the six ultrasonic transducers are focused, so that the obtained ultrasonic focusing point has high energy and good treatment effect.
Further, the zooming assembly comprises six connecting rods, one ends of the six connecting rods are connected with six ultrasonic transducers through universal rotary joints, and the other ends of the six connecting rods are connected with the edge of the zooming turntable through the universal rotary joints; the center of the zooming turntable is connected with one end of the eccentric shaft through a bearing; the other end of the eccentric shaft is connected with a zooming motor through a coupler; the zoom motor is arranged at the top of the probe shell; the zoom motor is connected with the control system;
the zoom motor drives the zoom turntable to circumferentially rotate through the eccentric shaft, the zoom turntable drives six ultrasonic transducers to move through the connecting rod, and an ultrasonic focusing point in the movement of the six ultrasonic transducers circumferentially rotates; the area swept in the circumferential rotation of the ultrasonic focusing point is a focusing point sweeping area S, the area swept in the circumferential rotation of the zoom rotary table is a zoom rotary table sweeping area T, and the relation between the focusing point sweeping area S and the zoom rotary table sweeping area T is satisfied:
wherein t=pi r 2 R is the eccentric radius of the eccentric shaft; r is the curvature radius of the spherical cap bodyThe method comprises the steps of carrying out a first treatment on the surface of the L is the length of the connecting rod.
In the scheme, the zoom motor drives the zoom turntable to move, and six ultrasonic transducers are driven by a connecting rod to adjust angles in the movement of the zoom turntable, so that an ultrasonic focusing point moves circumferentially to form a focusing point sweeping area S; in actual treatment, the circumferential movement of the ultrasonic focusing point can continuously carry out cyclic ultrasonic treatment on the focus area, so that the situation that the ultrasonic wavelength is focused on a local part to burn a patient is avoided; the ultrasonic focusing point moves continuously, so that abnormal rise of skin temperature of a patient can be effectively prevented, and the patient does not need to stop midway or take other measures in treatment, so that the operation process is quickened, and the operation experience of the patient is improved.
Further, a swivel is sleeved in the round hole, the outer side of the swivel is of a convex spherical structure, the inner wall of the round hole is of a concave spherical structure, and the swivel is movably connected with the round hole in a mode that the convex spherical structure is embedded into the concave spherical structure; the ultrasonic transducer is arranged inside the swivel.
In the scheme, the convex spherical structure of the swivel is embedded into the concave spherical structure of the round hole to realize movable connection of the convex spherical structure and the concave spherical structure, one end of a connecting rod is driven to move in the movement of the zoom turntable, and the angle of an ultrasonic transducer is driven to be adjusted in the movement of the connecting rod; the ultrasonic transducer is designed in the swivel, and the ultrasonic transducer can be adjusted in an omnibearing manner relative to the spherical crown body, so that the adjustment is flexible.
Further, the control system comprises a medical computer, the medical computer is connected with an ultrasonic image acquisition instrument, the ultrasonic image acquisition instrument acquires focus image information in a patient and sends the focus image information to the medical computer, and the medical computer receives an ultrasonic treatment area determined according to the focus image information; the medical computer divides the ultrasonic treatment area into a plurality of probe paths, the width of each probe path is the path width D, and the path width D meets the following conditions:
i.e. the path width D is equal to the diameter of the focal point swept area S; the medical computer controls the zoom type ultrasonic probe connected to the probe mounting piece through the transverse motor and the longitudinal motor to carry out ultrasonic treatment on a plurality of probe paths.
In the scheme, an ultrasonic image acquisition instrument acquires focus image information of a patient, and medical staff can outline an ultrasonic treatment area to be treated according to the focus image information on a medical computer; the medical computer controls the zoom type ultrasonic probe to carry out ultrasonic treatment on the ultrasonic treatment area, thereby realizing accurate ultrasonic treatment on the focus area; the path width of the probe path is equal to the diameter of the swept area of the focusing point, and when the medical computer drives the zoom type ultrasonic probe to move, the zoom type ultrasonic probe moves once along the probe path, so that the local area in the probe path can be treated completely; the treatment efficiency is higher, and the operation progress is faster.
Further, the medical computer transversely divides the ultrasonic treatment area into a plurality of probe paths; the medical computer controls the zoom type ultrasonic probe to move to one end of the first probe path through the transverse motor and the longitudinal motor, and controls the zoom type ultrasonic probe to move along the first probe path through the transverse motor; the medical computer controls the six ultrasonic transducers to emit ultrasonic waves to treat the first probe path, and the medical computer adjusts ultrasonic focusing points of the six zoom type ultrasonic probes through the zoom motor in treatment so that the ultrasonic focusing points cover a sweeping area S of the focusing points; when the medical computer controls the zoom type ultrasonic probe to move to the other end of the first probe path through the transverse motor, the medical computer controls the zoom type ultrasonic probe to longitudinally move to the second probe path through the longitudinal motor to treat the second probe path.
In the scheme, the ultrasonic treatment area is transversely divided into a plurality of probe paths, the medical computer controls the zoom type ultrasonic probe to treat the probe paths one by one through the transverse motor and the longitudinal motor, the treatment efficiency is high, the ultrasonic treatment area is completely covered, and no missing area exists.
Further, the lifting mechanism is an electric lifting rod, and the probe moving support is arranged at the top of the electric lifting rod.
In the scheme, the probe moving support and the zoom type ultrasonic probe are lifted by the electric lifting rod, so that the height of the zoom type ultrasonic probe can be conveniently adjusted in operation.
The beneficial effects of the invention are as follows:
the zoom type ultrasonic probe is designed in the system for high-intensity focused ultrasonic waves, and the ultrasonic image acquisition instrument is arranged in the zoom type ultrasonic probe and used for acquiring focus image information of a patient, so that accurate treatment of a focus area of the patient is realized; the angle of the ultrasonic transducer is adjusted by the variable-focus motor in treatment, so that the ultrasonic focusing point moves circumferentially, the treatment efficiency is improved, and meanwhile, the burn caused by focusing the ultrasonic wavelength time on a certain part on a patient is effectively prevented.
Drawings
FIG. 1 is a schematic diagram of a system for high intensity focused ultrasound in accordance with the present invention;
FIG. 2 is a schematic cross-sectional view of a probe moving support according to the present invention;
FIG. 3 is a schematic cross-sectional view of a zoom-type ultrasonic probe according to the present invention;
FIG. 4 is an enlarged view of a portion of the area A of FIG. 3;
fig. 5 is a schematic view of the ultrasonic focusing point movement according to the present invention.
Reference numerals:
1. a bed; 2. a lifting mechanism; 3. a probe moving bracket; 31. a bracket housing; 32. a transverse screw; 33. a lateral movement bar; 34. a probe mount; 35. a transverse motor; 36. a longitudinal screw; 37. a longitudinally movable rod; 38. a longitudinal motor; 4. a zoom type ultrasonic probe; 41. a probe housing; 42. a spherical cap body; 43. an ultrasonic transducer; 431. a swivel; 44. a connecting rod; 45. a zoom dial; 46. an eccentric shaft; 47. a zoom motor; 48. an ultrasonic image acquisition instrument.
Detailed Description
The invention will be further described with reference to the drawings and specific examples. The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1-5, the present embodiment provides a system for high intensity focused ultrasound for tumor treatment; the system can increase the sweeping area of the ultrasonic focusing point by changing the focusing position of the ultrasonic focusing point, thereby improving the treatment efficiency; meanwhile, burn on a certain part of a patient can be prevented after the ultrasonic wavelength is focused on the certain part; the method specifically comprises the following steps:
the device comprises a lying bed 1, a lifting mechanism 2, a probe moving bracket 3, a zoom type ultrasonic probe 4 and a control system;
wherein, the bed 1 is provided with a lifting mechanism 2, and the top of the lifting mechanism 2 is provided with a probe moving bracket 3; a zoom type ultrasonic probe 4 is arranged on the probe moving bracket 3; the lifting mechanism 2 can drive the zooming ultrasonic probe 4 on which the probe moving bracket 3 is arranged to lift up and down; the probe moving bracket 3 and the zoom type ultrasonic probe 4 are electrically connected with a control system.
The probe moving bracket 3 is used for driving the zoom type ultrasonic probe 4 to move and comprises a bracket shell 31, a transverse driving component, a longitudinal driving component and a probe mounting piece 34;
as shown in fig. 2, the bracket housing 31 is attached to the top of the elevating mechanism 2; a transverse driving assembly and a longitudinal driving assembly are arranged in the bracket shell 31, and probe mounting pieces 34 are connected to the transverse driving assembly and the longitudinal driving assembly in a sliding manner; a zoom type ultrasonic probe 4 is arranged below the probe mounting piece 34; the zoom type ultrasonic probe 4 can be driven to move through the transverse driving assembly and the longitudinal driving assembly; the zoom type ultrasonic probe 4 can be driven to move along the focus area of the patient in the treatment process, so that accurate ultrasonic treatment is realized.
The transverse driving assembly comprises two transverse lead screws 32, and the two transverse lead screws 32 are rotatably connected to the inner wall of the bracket shell 31; the two transverse lead screws 32 are provided with transverse moving rods 33, and two ends of each transverse moving rod 33 are respectively in threaded connection with the two transverse lead screws 32; the probe mount 34 is slidably connected to the traverse bar 33; one of the transverse screw rods 32 is in transmission connection with a transverse motor 35, the transverse motor 35 is arranged on the inner wall of the bracket shell 31, and the two transverse screw rods 32 are in transmission connection; the longitudinal driving assembly comprises two longitudinal lead screws 36, the two longitudinal lead screws 36 are arranged perpendicular to the direction of the transverse lead screw 32, and the two longitudinal lead screws 36 are rotatably connected to the inner wall of the bracket shell 31; the two longitudinal lead screws 36 are provided with longitudinal moving rods 37, and two ends of each longitudinal moving rod 37 are respectively in threaded connection with the two longitudinal lead screws 36; the probe mounting piece 34 is connected to the longitudinal lead screws 36 in a sliding manner, one longitudinal lead screw 36 is connected with a longitudinal motor 38 in a transmission manner, the longitudinal motor 38 is arranged on the inner wall of the bracket shell 31, and the two longitudinal lead screws 36 are connected in a transmission manner; the transverse screw 32 and the longitudinal motor 38 are both connected with a control system; the control system drives the transverse screw rod 32 to rotate through the transverse motor 35, and the transverse moving rod 33 moves along the transverse screw rod 32 under the spiral drive of the transverse screw rod 32 and drives the probe mounting piece 34 to move transversely; the control system drives the longitudinal screw rod 36 to rotate through the longitudinal motor 38, and the longitudinal moving rod 37 moves along the longitudinal screw rod 36 under the spiral drive of the longitudinal screw rod 36 and drives the probe mounting piece 34 to longitudinally move.
Two ends of the transverse moving rod 33 are respectively connected with two transverse lead screws 32, two ends of the longitudinal moving rod 37 are respectively connected with two longitudinal lead screws 36, and when the transverse motor 35 and the longitudinal motor 38 respectively drive the transverse lead screws 32 and the longitudinal lead screws 36 to rotate, the transverse moving rod 33 and the longitudinal moving rod 37 can stably move, so that the zoom-type ultrasonic probe 4 stably operates; the design ensures that the vibration amplitude of the ultrasonic focusing point is smaller when the zooming type ultrasonic probe 4 moves in treatment, and improves the stability of the zooming type ultrasonic probe 4.
The zoom type ultrasonic probe 4 is used for transmitting ultrasonic waves to treat focus positions; it comprises a probe shell 41, a spherical cap body 42, an ultrasonic image acquisition instrument 48, an ultrasonic transducer 43 and a zooming component;
as shown in fig. 3, the probe housing 41 is provided on the probe mount 34; a spherical crown body 42 is arranged in the probe shell 41; an ultrasonic image acquisition instrument 48 is arranged in the center of the spherical crown body 42; six round holes are formed in the edge of the spherical crown body 42, and the six round holes are uniformly distributed on the spherical crown body 42 in a surrounding mode; an ultrasonic transducer 43 is movably connected in each round hole; the end of each ultrasonic transducer 43 is connected to a zoom assembly; the zoom assembly drives the six ultrasonic transducers 43 to adjust angles so as to adjust ultrasonic focusing points of the six ultrasonic transducers 43, and focuses ultrasonic waves emitted by the six ultrasonic transducers 43, so that the obtained ultrasonic focusing points are high in energy and good in treatment effect; the ultrasound image acquisition instrument 48 and the ultrasound transducer 43 are both connected to a control system.
As shown in fig. 3, the zoom assembly includes six connecting rods 44, one ends of the six connecting rods 44 are all connected with six ultrasonic transducers 43 through universal rotary joints, and the other ends of the six connecting rods 44 are connected with the edge of a zoom turntable 45 through universal rotary joints; the center of the zoom rotary table 45 is connected with one end of an eccentric shaft 46 through a bearing; the other end of the eccentric shaft 46 is connected with a zoom motor 47 through a coupling; the zoom motor 47 is arranged at the top of the probe shell 41; the zoom motor 47 is connected with the control system;
the zoom motor 47 drives the zoom turntable 45 to circumferentially rotate through the eccentric shaft 46, the zoom turntable 45 drives the six ultrasonic transducers 43 to move through the connecting rod 44, and an ultrasonic focusing point in the movement of the six ultrasonic transducers 43 circumferentially rotates; the area swept in the circumferential rotation of the ultrasonic focus is a focus swept area S, the area swept in the circumferential rotation of the zoom turntable 45 is a zoom turntable 45 swept area T, and the relation between the focus swept area S and the zoom turntable 45 swept area T is satisfied:
wherein t=pi r 2 R is the eccentric radius of the eccentric shaft; r is the curvature radius of the spherical crown body; l is the length of the connecting rod.
The zoom motor 47 drives the zoom turntable 45 to move, and six ultrasonic transducers 43 are driven by the connecting rod 44 to adjust the angle in the movement of the zoom turntable 45, so that the ultrasonic focusing point moves circumferentially to form a focusing point sweeping area S; in actual treatment, the circumferential movement of the ultrasonic focusing point can continuously carry out cyclic ultrasonic treatment on the focus area, so that the situation that the ultrasonic wavelength is focused on a local part to burn a patient is avoided; the ultrasonic focusing point moves continuously, so that abnormal rise of skin temperature of a patient can be effectively prevented, and the patient does not need to stop midway or take other measures in treatment, so that the operation process is quickened, and the operation experience of the patient is improved.
As shown in fig. 4, a rotating ring 431 is sleeved in the round hole, the outer side of the rotating ring 431 is of a convex spherical structure, the inner wall of the round hole is of a concave spherical structure, and the rotating ring 431 is movably connected with the round hole in a mode that the convex spherical structure is embedded into the concave spherical structure; the ultrasonic transducer 43 is disposed inside the swivel 431; the convex spherical structure of the swivel 431 is embedded into the concave spherical structure of the round hole to realize movable connection of the two, one end of the connecting rod 44 is driven to move by the movement of the zoom turntable 45, and the angle of the ultrasonic transducer 43 is regulated by the movement of the connecting rod 44; the ultrasonic transducer 43 is designed in the swivel 431, and the ultrasonic transducer 43 can be adjusted in an omnibearing angle relative to the spherical crown body 42, and the adjustment is flexible.
The control system comprises a medical computer, the medical computer is connected with an ultrasonic image acquisition instrument 48, and the ultrasonic image acquisition instrument 48 acquires focus image information in a patient and sends the focus image information to the medical computer; after receiving focus image information, medical staff delineates an ultrasonic treatment area to be treated on the medical computer according to the focus image information; the medical computer divides the ultrasonic treatment area into a plurality of probe paths, the width of each probe path is the path width D, and the path width D meets the following conditions:
i.e. the path width D is equal to the diameter of the focal point swept area S; the path width of the probe path is equal to the diameter of the swept area of the focusing point; the medical computer controls the zoom type ultrasonic probe 4 connected to the probe mounting piece 34 through the transverse motor 35 and the longitudinal motor 38 to carry out ultrasonic treatment on a plurality of probe paths; the medical computer drives the zoom type ultrasonic probe 4 to move once along the probe path, so that the local area in the probe path can be treated completely.
The medical computer transversely divides the ultrasonic treatment area into a plurality of probe paths; the medical computer controls the zoom type ultrasonic probe 4 to move to one end of the first probe path through the transverse motor 35 and the longitudinal motor 38, and controls the zoom type ultrasonic probe 4 to move along the first probe path through the transverse motor 35; the medical computer controls the six ultrasonic transducers 43 to emit ultrasonic waves to treat the first probe path, and the medical computer adjusts the ultrasonic focusing points of the six zoom type ultrasonic probes 4 through the zoom motor 47 in treatment so that the ultrasonic focusing points cover the sweeping area S of the focusing points; when the medical computer controls the zoom type ultrasonic probe 4 to move to the other end of the first probe path through the transverse motor 35, the medical computer controls the zoom type ultrasonic probe 4 to longitudinally move to the second probe path through the longitudinal motor 38 to treat the second probe path; the ultrasonic treatment area is transversely divided into a plurality of probe paths, the medical computer controls the zoom type ultrasonic probe 4 to treat the probe paths one by one through the transverse motor 35 and the longitudinal motor 38, the treatment efficiency is high, the ultrasonic treatment area is completely covered, and no missing area exists.
The lifting mechanism 2 is an electric lifting rod, and the probe moving bracket 3 is arranged at the top of the electric lifting rod; the probe moving support 3 and the zoom type ultrasonic probe 4 are lifted by the electric lifting rod, so that the height of the zoom type ultrasonic probe 4 can be conveniently adjusted in operation.
The working principle of the embodiment is as follows:
when the system for focusing ultrasonic waves with high intensity provided by the embodiment is used for tumor treatment, the ultrasonic image acquisition instrument 48 firstly acquires focus image information in a patient and sends the focus image information to the medical computer; medical staff delineates an ultrasonic treatment area to be treated on a medical computer according to focus image information; the medical computer controls the zoom type ultrasonic probe 4 to treat the ultrasonic treatment area through the transverse motor 35 and the longitudinal motor 38; the zoom motor 47 drives the ultrasonic transducer 43 to adjust the angle through the connecting rod 44 during treatment, and the position of the ultrasonic focusing point correspondingly changes when the ultrasonic transducer 43 adjusts the angle; as shown in fig. 5; when the zoom motor 47 drives the zoom turntable to rotate circumferentially to adjust the angle of the ultrasonic transducer 43, the ultrasonic focusing point also rotates circumferentially to form a circular focusing spot, so that the treatment efficiency is improved, and the burning of the patient caused by local focusing of ultrasonic wavelength time is avoided.
Those of ordinary skill in the art will recognize that the embodiments herein are intended to assist the reader in understanding the principles of the invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (9)
1. A system for high intensity focused ultrasound, characterized by: comprises a lying bed (1), a lifting mechanism (2), a probe moving bracket (3), a zooming type ultrasonic probe (4) and a control system; a lifting mechanism (2) is arranged on the bed (1), and a probe moving bracket (3) is arranged at the top of the lifting mechanism (2); a zoom type ultrasonic probe (4) is arranged on the probe moving bracket (3); the probe moving support (3) and the zoom type ultrasonic probe (4) are electrically connected with the control system.
2. The system for high intensity focused ultrasound of claim 1, wherein: the probe moving bracket (3) comprises a bracket shell (31), and the bracket shell (31) is connected to the top of the lifting mechanism (2); a transverse driving assembly and a longitudinal driving assembly are arranged in the bracket shell (31), and probe mounting pieces (34) are connected to the transverse driving assembly and the longitudinal driving assembly in a sliding manner; the zoom type ultrasonic probe is arranged below the probe mounting piece (34).
3. The system for high intensity focused ultrasound of claim 2, wherein: the transverse driving assembly comprises two transverse lead screws (32), and the two transverse lead screws (32) are rotatably connected to the inner wall of the bracket shell (31); the two transverse lead screws (32) are provided with transverse moving rods (33), and two ends of each transverse moving rod (33) are respectively in threaded connection with the two transverse lead screws (32); the probe mounting piece (34) is connected to the transverse moving rod (33) in a sliding manner; one of the transverse lead screws (32) is in transmission connection with a transverse motor (35), the transverse motor (35) is arranged on the inner wall of the bracket shell (31), and the two transverse lead screws (32) are in transmission connection;
the longitudinal driving assembly comprises two longitudinal lead screws (36), the two longitudinal lead screws (36) are perpendicular to the direction of the transverse lead screw (32), and the two longitudinal lead screws (36) are rotatably connected to the inner wall of the bracket shell (31); the two longitudinal lead screws (36) are provided with longitudinal moving rods (37), and two ends of each longitudinal moving rod (37) are respectively in threaded connection with the two longitudinal lead screws (36); the probe mounting pieces (34) are connected to the longitudinal lead screws (36) in a sliding manner, one longitudinal lead screw (36) is connected with a longitudinal motor (38) in a transmission manner, the longitudinal motor (38) is arranged on the inner wall of the bracket shell (31), and the two longitudinal lead screws (36) are connected in a transmission manner;
the transverse screw (32) and the longitudinal motor (38) are connected with the control system;
the control system drives the transverse screw rod (32) to rotate through the transverse motor (35), and the transverse moving rod (33) moves along the transverse screw rod (32) under the spiral driving of the transverse screw rod (32) and drives the probe mounting piece (34) to move transversely; the control system drives the longitudinal screw rod (36) to rotate through the longitudinal motor (38), and the longitudinal moving rod (37) moves along the longitudinal screw rod (36) under the spiral driving of the longitudinal screw rod (36) and drives the probe mounting piece (34) to longitudinally move.
4. A system for high intensity focused ultrasound according to claim 3, wherein: the zoom type ultrasonic probe (4) comprises a probe shell (41), and the probe shell (41) is arranged on the probe mounting piece (34); a spherical crown body (42) is arranged in the probe shell (41); an ultrasonic image acquisition instrument (48) is arranged at the center of the spherical crown body (42); six round holes are formed in the edge of the spherical crown body (42), and the six round holes are uniformly distributed on the spherical crown body (42) in a surrounding mode; an ultrasonic transducer (43) is movably connected in each round hole; the end part of each ultrasonic transducer (43) is connected with the zooming component; the zoom assembly drives six ultrasonic transducers (43) to adjust angles so as to adjust ultrasonic focusing points of the six ultrasonic transducers (43);
the ultrasonic image acquisition instrument (48) and the ultrasonic transducer (43) are connected with the control system.
5. The system for high intensity focused ultrasound of claim 4, wherein: the zoom assembly comprises six connecting rods (44), one ends of the six connecting rods (44) are connected with six ultrasonic transducers (43) through universal rotary joints, and the other ends of the six connecting rods (44) are connected with the edge of a zoom rotary table (45) through universal rotary joints; the center of the zooming turntable (45) is connected with one end of an eccentric shaft (46) through a bearing; the other end of the eccentric shaft (46) is connected with a zoom motor (47) through a coupler; the zoom motor (47) is arranged at the top of the probe shell (41); the zoom motor (47) is connected with the control system;
the zoom motor (47) drives the zoom rotary table (45) to circumferentially rotate through the eccentric shaft (46), the zoom rotary table (45) drives six ultrasonic transducers (43) to move through the connecting rod (44), and an ultrasonic focusing point in the movement of the six ultrasonic transducers (43) circumferentially rotates; the area swept in the circumferential rotation of the ultrasonic focusing point is a focusing point sweeping area S, the area swept in the circumferential rotation of the zoom rotary table (45) is a zoom rotary table (45) sweeping area T, and the relation between the focusing point sweeping area S and the zoom rotary table (45) sweeping area T is satisfied:
wherein t=pi r 2 R is the eccentric radius of the eccentric shaft; r is the curvature radius of the spherical crown body; l is the length of the connecting rod.
6. The system for high intensity focused ultrasound of claim 5, wherein: a swivel (431) is sleeved in the round hole, a convex spherical structure is arranged on the outer side of the swivel (431), a concave spherical structure is arranged on the inner wall of the round hole, and the swivel (431) is movably connected with the round hole in a mode that the convex spherical structure is embedded into the concave spherical structure; the ultrasonic transducer (43) is disposed inside the swivel (431).
7. The system for high intensity focused ultrasound of claim 5, wherein: the control system comprises a medical computer, the medical computer is connected with the ultrasonic image acquisition instrument (48), the ultrasonic image acquisition instrument (48) acquires focus image information in a patient and sends the focus image information to the medical computer, and the medical computer receives an ultrasonic treatment area determined according to the focus image information; the medical computer divides the ultrasonic treatment area into a plurality of probe paths, the width of each probe path is a path width D, and the path width D meets the following conditions:
i.e. the path width D is equal to the diameter of the focal point swept area S; the medical computer controls the variable-focus ultrasonic probe (4) connected to the probe mounting piece (34) through the transverse motor (35) and the longitudinal motor (38) to carry out ultrasonic treatment on a plurality of probe paths.
8. The system for high intensity focused ultrasound of claim 7, wherein: the medical computer transversely divides the ultrasonic treatment area into a plurality of probe paths; the medical computer controls the variable-focus ultrasonic probe (4) to move to one end of a first probe path through the transverse motor (35) and the longitudinal motor (38), and controls the variable-focus ultrasonic probe (4) to move along the first probe path through the transverse motor (35); the medical computer controls six ultrasonic transducers (43) to emit ultrasonic waves to treat a first probe path, and the medical computer adjusts ultrasonic focusing points of six zooming ultrasonic probes (4) through the zooming motor (47) during treatment so that the ultrasonic focusing points cover a focusing point sweeping area S; when the medical computer controls the zoom type ultrasonic probe (4) to move to the other end of the first probe path through the transverse motor (35), the medical computer controls the zoom type ultrasonic probe (4) to longitudinally move to the second probe path through the longitudinal motor (38) to treat the second probe path.
9. The system for high intensity focused ultrasound according to any of claims 1 to 8, wherein: the lifting mechanism (2) is an electric lifting rod, and the probe moving support (3) is arranged at the top of the electric lifting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311780035.7A CN117653944A (en) | 2023-12-21 | 2023-12-21 | System for high-intensity focused ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311780035.7A CN117653944A (en) | 2023-12-21 | 2023-12-21 | System for high-intensity focused ultrasonic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117653944A true CN117653944A (en) | 2024-03-08 |
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ID=90075129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311780035.7A Pending CN117653944A (en) | 2023-12-21 | 2023-12-21 | System for high-intensity focused ultrasonic wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117653944A (en) |
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2023
- 2023-12-21 CN CN202311780035.7A patent/CN117653944A/en active Pending
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