CN214017602U - In-vivo interventional fan-scanning probe with rotary positioning function and ultrasonic imaging system comprising same - Google Patents
In-vivo interventional fan-scanning probe with rotary positioning function and ultrasonic imaging system comprising same Download PDFInfo
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- CN214017602U CN214017602U CN202022310050.3U CN202022310050U CN214017602U CN 214017602 U CN214017602 U CN 214017602U CN 202022310050 U CN202022310050 U CN 202022310050U CN 214017602 U CN214017602 U CN 214017602U
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Abstract
The utility model belongs to the technical field of ultrasonic imaging, concretely relates to take rotational positioning's internal fan-shaped probe of interveneeing and contain its ultrasonic imaging system. The utility model provides an internal intervention sector sweep probe includes ultrasonic mechanism and calibration mechanism, and ultrasonic mechanism is including having the shell that holds the chamber and setting up ultrasonic transducer and the servo motor in holding the intracavity jointly, and calibration mechanism is including relative sensor and the inductor of setting on shell and ultrasonic transducer. When the ultrasonic transducer carries out sector scanning movement relative to the shell, the sensor or the sensor can be used as an interval calibration unit to acquire signals or give signals, and accordingly the angle of the ultrasonic transducer carrying out sector scanning movement relative to the shell and the position of the ultrasonic transducer when the direction is switched are obtained. The imaging host machine can realize the sector scanning motion positioning of the ultrasonic transducer through the position and the angle acquired by the calibration mechanism, thereby avoiding the distortion problem during image synthesis.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic imaging, concretely relates to take rotational positioning's internal fan of interveneeing to sweep probe and contain its ultrasonic imaging system.
Background
When the body cavity lesion is diagnosed, certain subjectivity and limitation exist by simply deducing the change of the tissue surface morphology. The in vivo interventional ultrasonic imaging technology utilizes an ultrasonic probe to intervene in vivo to carry out ultrasonic scanning on in vivo tissues such as blood vessels, digestive tracts, bronchus, heart and the like, can obtain clearer and more accurate in vivo tissue sectional images, and provides objective basis for the symptomatic treatment of doctors.
The internal interventional ultrasonic imaging device generally comprises an imaging host, an internal interventional ultrasonic probe and an external driving control unit, wherein the rotary motion generated by a rotary motor of the external control unit is transmitted to an ultrasonic transducer through a transmission flexible shaft, so that the imaging of the inner wall of an internal cavity is realized. However, when the driving flexible shaft drives the ultrasonic transducer to rotate, the bending characteristic, the torsion characteristic, the friction change with the sheath tube and other factors of the driving flexible shaft can cause the nonuniformity of the rotation transmission, so that the imaging host machine can not accurately judge the actual position of the rotation of the ultrasonic transducer, thereby causing the image distortion.
In order to solve the technical problem, it has been reported that the rotating motor is made into a micro-structure and directly connected with the ultrasonic transducer, so as to eliminate the nonuniformity of rotation transmission caused by the transmission flexible shaft. However, for the fan-scan imaging device, the rotating motor of the imaging device needs to do reciprocating motion within a certain angle range, the reciprocating motion itself has accumulated errors, especially when the moving direction is switched, the rotating motor vibrates in the rotating direction due to the inertia, so that the rotating motion is more unstable, the rotating motion error is larger, the motion error is difficult to detect and control in the microstructure, the imaging host machine still cannot accurately judge the actual rotating angle and position of the ultrasonic transducer, and the image distortion problem still exists.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming current fan sweep image device and bringing the instability and can't accurately judge the rotatory actual position of ultrasonic transducer then lead to the defect of image distortion because of rotating electrical machines reciprocating motion to provide one kind can accurately judge the internal fan of interveneeing of ultrasonic transducer rotatory actual position and sweep the probe and contain the ultrasonic imaging device of this fan of sweeping the probe.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a take rotational positioning's internal fan of interveneeing to sweep probe, include:
the ultrasonic mechanism comprises a shell with a cavity and a closed end, and an ultrasonic transducer and a servo motor which are jointly arranged in the cavity, wherein the servo motor is connected with the ultrasonic transducer to drive the ultrasonic transducer to periodically perform sector scanning movement relative to the shell;
the calibration mechanism comprises a sensor and an inductor which are oppositely arranged on the shell and the ultrasonic transducer, wherein a plurality of end position calibration units corresponding to two circumferential ends of sector scanning movement and an interval calibration unit distributed between the end position calibration units are arranged on the sensor or the inductor, the end position calibration unit acquires a sensor signal opposite to the end position calibration unit or gives the sensor signal opposite to the end position calibration unit, and the interval calibration unit acquires the sensor signal opposite to the end position calibration unit or gives the sensor signal opposite to the end position calibration unit, so that the direction switching position and the sector scanning angle of the ultrasonic transducer relative to the shell in sector scanning movement are calibrated respectively.
Preferably, the internal interventional fan-scanning probe with the rotary positioning structure adopts one of light induction and magnetic induction as a signal induction mode between the sensor and the inductor.
Further preferably, in the internal body intervention sector-scanning probe with the rotary positioning structure, the end position calibration unit is connected with the servo motor, and signals between the end position calibration unit and the sensor or the inductor opposite to the end position calibration unit are transmitted to the servo motor to control the servo motor to perform steering switching.
Preferably, the structure of the internal body intervention sector-scanning probe with rotary positioning comprises one sensor and a plurality of sensors, wherein the number of the sensors is one, and the sensors are arranged on the ultrasonic transducer and arranged on the inner wall surface of the shell.
Further preferably, in the structure of the in vivo interventional sector scanning probe with rotational positioning, the sensors corresponding to the two circumferential ends of the sector scanning motion form the end position calibration unit, the other sensors form the interval calibration unit, and the interval calibration units are distributed at equal intervals among the end position calibration units.
Further preferably, the internal interventional sector-scan probe with the rotary positioning function of the structure further comprises an ultrasonic base for fixing the ultrasonic transducer and a sensing base for fixing the sensor, wherein the ultrasonic base and the sensing base are arranged at the output end of the servo motor and move synchronously.
Further preferably, the internal interventional fan-scanning probe with the rotary positioning structure is provided with a first mounting part for mounting the ultrasonic transducer and a mounting through hole for extending one end of the sensing base;
the sensing base protrudes out of the other end of the ultrasonic base, and a second installation part for installing the sensor is arranged at the other end of the ultrasonic base.
Further preferably, the structure of the internal body intervention sector-scanning probe with rotary positioning further comprises an inner shell which is arranged in the cavity and is used for the sensor to extend into, and the sensors are distributed on the inner shell.
The utility model also provides an ultrasonic imaging system, include:
an intracorporeal interventional fan-scan probe with rotational positioning as described above;
and the imaging host.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an internal intervention sector sweep probe with rotary positioning, which comprises an ultrasonic mechanism and a calibration mechanism. The ultrasonic mechanism comprises a shell with a cavity and a closed end, and an ultrasonic transducer and a servo motor which are arranged in the cavity together, wherein the servo motor is connected with the ultrasonic transducer to drive the ultrasonic transducer to periodically perform sector scanning movement relative to the shell; the calibration mechanism comprises a sensor and an inductor which are oppositely arranged on the shell and the ultrasonic transducer, the sensor or the inductor is provided with a plurality of end position calibration units corresponding to two circumferential ends of the fan-shaped scanning motion and interval calibration units distributed between the end position calibration units, the end position calibration units acquire sensor signals opposite to the end position calibration units or give sensor signals opposite to the end position calibration units, the interval calibration units acquire sensor signals opposite to the interval calibration units or give sensor signals opposite to the interval calibration units, and therefore the direction switching position and the fan-shaped scanning angle of the ultrasonic transducer relative to the shell are calibrated respectively.
According to the internal interventional fan-scanning probe with the rotary positioning structure, the sensor and the inductor are oppositely arranged on the shell and the ultrasonic transducer, when the ultrasonic transducer carries out fan-shaped scanning movement relative to the shell, the inductor or the sensor can be used as an interval calibration unit to acquire signals or give signals, and accordingly, the angle of the ultrasonic transducer carrying out fan-shaped scanning movement relative to the shell is obtained; when the moving direction of the servo motor is switched, the sensor or the sensor can be used as an end position calibration unit to acquire signals or give signals, and accordingly, the position of the ultrasonic transducer during direction switching is obtained. The imaging host machine can realize the positioning of the sector scanning motion of the ultrasonic transducer through the position and the angle acquired by the calibration mechanism, eliminates the deviation between the actual position and the angle of the rotary motion of the ultrasonic transducer and the ideal position and the angle preset for controlling the sector scanning motion of the ultrasonic transducer caused by the reciprocating motion and the direction switching of a servo motor of a conventional ultrasonic probe, and avoids the problem of distortion during image synthesis.
2. The utility model provides a take rotational positioning's internal intervention fan to sweep probe, end position calibration unit is connected with servo motor, signal transmission to this servo motor between end position calibration unit and its relative sensor or the inductor, end position calibration unit both can acquire servo motor position signal when the direction switches, also can instruct servo motor to carry out the direction switching, also promptly, servo motor's direction switching instruction and shift position acquire by same equipment control, need not to set up steering control device alone, the error has been reduced.
3. The utility model provides a take rotational positioning's internal fan of interveneeing to sweep probe, interval calibration unit is equidistant between end position calibration unit and is distributed, when ultrasonic transducer carries out fan-shaped scanning motion for the shell, acquires each scanning angle signal of ultrasonic transducer in proper order as interval calibration unit's a plurality of inductor, has realized improving calibration accuracy and has simplified the unity of maring the calculation process.
4. The utility model provides an ultrasonic imaging system, including taking rotational positioning's internal intervention fan-shaped scanning probe, can accurately judge ultrasonic transducer take place the actual position of fan-shaped scanning motion when the direction switches and the actual angle when fan-shaped scanning, can not arouse the image distortion when the image is synthetic.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an internal interventional ultrasonic probe provided in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of an explosive structure of the ultrasonic mechanism and the calibration mechanism in FIG. 1;
fig. 3 is a view illustrating an installation manner of the ultrasonic transducer according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view of an ultrasonic base provided in embodiment 1 of the present invention;
fig. 5 is a schematic diagram of an arrangement mode of an ultrasonic transducer array element provided in embodiment 1 of the present invention;
fig. 6 is a distribution diagram of the end position calibration unit and the interval calibration unit provided in embodiment 1 of the present invention on the wall surface of the inner shell;
fig. 7 is a schematic view of a sensing base structure provided in embodiment 1 of the present invention;
fig. 8 is a schematic diagram of an end position signal and an interval signal respectively acquired by an end position calibration unit and an interval calibration unit provided in embodiment 1 of the present invention;
fig. 9 is a schematic structural view of an imaging system provided in embodiment 2 of the present invention;
description of reference numerals:
1-introducing a fan-scanning probe in a body;
11-an ultrasonic mechanism; 111-a housing; 1111-acoustic window; 112-a servo motor; 113-an ultrasonic transducer; 114-an ultrasound mount; 1141-a first mounting portion; 1142-mounting a through hole; 115-a sensing base; 1151-a second mounting portion; 116-an inner shell; 117-bearings;
12-a calibration mechanism; 121-a sensor; 122-a sensor; 123-end position calibration unit; 124-interval calibration unit;
2-imaging host.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides an intracorporeal interventional fan-scan probe 1 with rotational positioning, as shown in fig. 1, comprising an ultrasound mechanism 11 and a calibration mechanism 12.
As shown in fig. 1 and 2, the ultrasonic mechanism 11 includes a housing 111, a servo motor 112, and an ultrasonic transducer 113. The housing 111 is a tubular housing closed at one end and defining a cavity for receiving the ultrasonic transducer 113.
In order to avoid the problem of errors caused by the servo motor in the prior art when the servo motor transmits the ultrasonic transducer through the flexible shaft, the hardness and the transmission distance of a transmission material can be improved, for example, the servo motor 112 and the ultrasonic transducer 113 are transmitted through the hard material, and the transmission errors can be effectively eliminated if the transmission distance between the servo motor 112 and the ultrasonic transducer 113 is shortened. Specifically, all or at least an output end portion of the servo motor 112 and the ultrasonic transducer 113 are extended into the cavity and connected, and a long flexible shaft is not arranged between the output end portion and the ultrasonic transducer 113, so that when the servo motor 112 drives the ultrasonic transducer 113 to perform periodic sector scanning movement relative to the housing 111, transmission errors can be reduced to a certain extent.
Meanwhile, an ultrasonic base 114 made of a hard material is arranged at the output end of the servo motor 112 to fix the ultrasonic transducer 113, for example, organic glass or polyethylene is selected, and in this embodiment, the ultrasonic base 114 is made of organic glass.
In order to better dispose the ultrasonic transducer 113 on the ultrasonic base 114, a first mounting portion 1141 for mounting the ultrasonic transducer 113 is disposed on the ultrasonic base 114, as shown in fig. 3, the first mounting portion 1141 may be a side groove structure that is opened on a side wall of the ultrasonic base 114 to move circumferentially toward the sector scanning, or may be an oblique front structure or an end plane structure that is formed on the ultrasonic base 114 away from an output end of the servo motor 112, and therefore, a mounting manner of the ultrasonic transducer 113 on the ultrasonic base 114 includes: a side view mounting provided at the side groove structure, as shown in fig. 3 (a); (ii) an oblique front view mount disposed in an oblique front structure, as shown in fig. 3 (b); and (III) is arranged at the front view installation of the end plane, as shown in (c) in figure 3. In this embodiment, the ultrasonic base 114 is a cylindrical structure, and the first mounting portion 1141 is a side groove structure formed on the curved sidewall of the ultrasonic base 114, that is, the ultrasonic transducer 113 adopts a side-view mounting manner, and is provided with a mounting through hole 1142 along the axial direction of the ultrasonic base 114, as shown in fig. 4; the output end of the servo motor 112 extends into one end of the mounting through hole 1142 and is fixedly connected with the same, and the ultrasonic transducer 113 is fixed on the first mounting portion 1141, so that the ultrasonic transducer 113 and the output end of the servo motor 112 can synchronously rotate without transmission errors.
As shown in fig. 2, an acoustic window 1111 is formed on the curved wall of the housing 111, and the acoustic window 1111 is disposed at a position corresponding to a sector scanning interval of the ultrasonic transducer 113.
The ultrasonic transducer 113 may be selected from a unit array type as shown in fig. 5 (a), an array type as shown in fig. 5 (b), a convex array type as shown in fig. 5 (c), a circular array type as shown in fig. 5 (d), and the like, the unit array type is mainly used for two-dimensional ultrasonic imaging, and the array type is mainly used for real-time three-dimensional ultrasonic imaging.
In the process of the reciprocating sector scanning movement of the ultrasonic transducer 113 driven by the servo motor 112, the reciprocating movement has accumulated errors, especially when the rotation direction of the servo motor 112 is switched, because of the existence of inertia, the output end of the servo motor 112 will vibrate in the rotation direction, so that the rotation movement of the output end is more unstable, the rotation movement error is larger, and finally, the imaging host machine cannot accurately judge the actual sector scanning angle and direction switching position of the ultrasonic transducer 113, therefore, the calibration mechanism 12 is arranged on the internal interventional sector scanning probe with the rotary positioning function.
As shown in fig. 1 and fig. 2, the calibration mechanism 12 includes a sensor 121 and an inductor 122, the sensor 121 is a signal emitting end, and the inductor 122 is a signal receiving end, which are oppositely disposed on the housing 11 and the ultrasonic transducer 113, when the ultrasonic transducer 113 performs a sector scanning motion, the sensor 121 and the inductor 122 perform a relative motion, and the inductor 122 receives a signal from the sensor 121, so that calibration of the ultrasonic transducer 113 with respect to the housing 11 can be achieved.
When the ultrasonic transducer 113 reciprocates, the ultrasonic trajectory in the movement circumferential direction thereof takes a fan shape. In order to accurately detect the fan-shaped scanning motion track of the ultrasonic transducer 113, a plurality of sensors 121 or sensors 122 are required to be arranged to form end position calibration units 123 corresponding to two circumferential ends of the fan-shaped scanning and section calibration units 124 distributed between the end position calibration units 123, as shown in fig. 6, that is, the sensors 121 can be selected as the end position calibration units 123 and the section calibration units 124, or the sensors 122 can be selected as the end position calibration units 123 and the section calibration units 124, as long as the sensor 121 serving as the end position calibration unit 123 can give a signal to the sensor 122 opposite thereto (or the sensor 122 serving as the end position calibration unit 123 can obtain a signal of the sensor 121 opposite thereto), and meanwhile, the sensor 121 serving as the section calibration unit 124 can give a signal to the sensor 122 opposite thereto (or the sensor 122 serving as the section calibration unit 124 can obtain a signal of the sensor 121 opposite thereto), the calibration of the direction switching position and the sector scanning angle of the ultrasonic transducer 113 in relation to the housing 11 during the sector scanning movement can be realized.
As a preferred embodiment, as shown in fig. 6, the number of the sensors 121 is one, and the sensors are directly or indirectly arranged on the ultrasonic transducer to realize synchronization of the two; the number of the inductors 122 is several, and the inductors are directly or indirectly distributed on the inner wall surface of the housing 11 to form an end position calibration unit 123 and an interval calibration unit 124 corresponding to the sector scanning motion interval of the ultrasonic transducer 113.
In a preferred embodiment, a sensing base 115 for fixing the sensor 121 and an inner housing 116 for fixing the inductor 122 are provided in the ultrasonic mechanism 11, as shown in fig. 2. Wherein, the sensing base 115 and the ultrasonic base 114 are arranged at the output end of the servo motor 112 together, and synchronously move under the driving of the servo motor 112; the ultrasonic base 114 and the sensing base 115 are arranged at the output end of the servo motor 112 in any order, for example, the ultrasonic base 114 and the sensing base 115 are arranged at the output end of the servo motor 112 in sequence, or the sensing base 115 and the ultrasonic base 114 are arranged at the output end of the servo motor 112 in sequence, in this embodiment, the ultrasonic base 114 and the sensing base 115 are preferably arranged at the output end of the servo motor 112 in sequence.
The sensing base 115 is cylindrical, and a groove structure for fixing the sensor 122 is formed on a part of one end of the sensing base deviating from the axis or a side wall close to the end to form a second mounting part 1151, as shown in fig. 7; preferably, the side walls are open at a position close to the end.
One end of the sensing base 115 extends into and is fixedly connected with one end of the mounting through hole 1142, so that the second mounting portion 1151 protrudes out of the ultrasonic base 114, and meanwhile, the output end of the servo motor 112 extends into and is fixedly connected with the other end of the mounting through hole 1142, so that the ultrasonic base 114 and the sensing base 115 synchronously move under the driving of the servo motor 112.
As shown in fig. 6, the inner casing 116 is a circular ring-shaped casing fixed on the inner wall surface of the cavity, and the plurality of sensors 122 are distributed on the inner wall surface of the inner casing 116 to form an end position calibration unit 123 and an interval calibration unit 124 corresponding to the sector scanning movement interval of the ultrasonic transducer 113. The end of the sensing base 115 where the second mounting portion 1151 is disposed extends into the space of the inner housing 116, so that the sensor 121 is disposed opposite to the plurality of sensors 122.
The signal transmission mode between the sensor 121 and the sensor 122 is one of optical induction and magnetic induction, that is, the sensor 121 and the sensor 122 may respectively adopt an optical generator and an optical receiver, or respectively adopt a magnetic generator and a magnetic inductor, etc.; in this embodiment, the sensor 121 and the inductor 122 respectively employ a magnetic generator and a magnetic inductor, and when the ultrasonic transducer 113 moves relative to the housing 111, the magnetic inductors distributed in a sector shape sequentially receive the magnetic field parameter change of the magnetic generator, so as to calibrate the movement track of the ultrasonic transducer 113.
The magnetic field parameters can be all parameters representing the magnetic field, such as magnetic induction intensity, magnetic field intensity, magnetic flux, magnetic energy product and the like, and the magnetic generator generates the magnetic field and the magnetic sensor senses the magnetic field by adopting the prior art.
In order to obtain the magnetic field parameters which change regularly, the magnetic inductors are distributed in an array on the inner wall surface of the inner shell 116, a gap exists between two adjacent magnetic inductors, when the magnetic generator moves along with the ultrasonic transducer 113, the magnetic field parameters sent by the magnetic generator are sequentially received by the magnetic inductors distributed in the array, namely, a pulse signal taking time as an axis is formed, as shown in fig. 8, the pulse signal comprises an end position signal obtained by an end position calibration unit and an interval signal obtained by an interval calibration unit, wherein the end position signal records the actual position of the ultrasonic transducer 113 relative to the outer shell 111 when the direction is switched, and the interval signal records the actual angle of the ultrasonic transducer 113 relative to the outer shell 111 when the ultrasonic transducer is in sector scanning, so that the imaging host can realize sector scanning motion positioning of the ultrasonic transducer 113 through the position and angle obtained by the calibration mechanism 12, and eliminate the actual rotary motion of the ultrasonic transducer caused by the reciprocating motion and direction switching of a conventional ultrasonic probe due to a servo motor The deviation of the position and the angle from the ideal position and the angle preset for controlling the sector scanning motion of the ultrasonic transducer avoids the problem of distortion during image synthesis.
In order to obtain more magnetic field parameters, the central angles of two adjacent magnetic inductors are preferably as small as possible and are distributed at equal intervals, and the central angles are preferably 0.1 degrees. The magnetic generator can be made of a permanent magnet or a ferromagnetic material, preferably the ferromagnetic material, and is embedded on the second mounting part 1151 in various ways such as etching, evaporation or assembly; the magnetic sensor is a magnetic sensor utilizing a hall effect.
In the sector scanning process, in order to prevent the ultrasonic base 114 and the sensing base 115 from deviating from the rotation center line of the output end of the servo motor 112, bearings 117 are arranged between the servo motor 112 and the ultrasonic base 114 and at two ends of the inner shell 116, as shown in fig. 2, the outer ring of the bearing 117 is fixed on the inner wall surface of the inner shell 116, the outer diameter of the output end of the servo motor 112 and the outer diameter of the sensing base 115 are equal to the inner diameter of the inner ring of the bearing 117, and the limit of the ultrasonic base 114 and the sensing base 115 is realized by extending the output end of the servo motor 112 and the sensing base 115 into the inner ring of the bearing 117.
In order to further reduce transmission errors, the end position calibration unit 123 is electrically connected with the servo motor 112, and by transmitting the magnetic field parameters acquired by the end position calibration unit 123 to the servo motor 112, the end position calibration unit 123 can acquire position signals of the servo motor 112 during direction switching and can instruct the servo motor to perform direction switching, that is, the direction switching instruction and the switching position acquisition of the servo motor 112 are controlled by the same device, and a steering control device is not required to be separately arranged, so that errors are reduced.
Example 2
The present embodiment provides an imaging system, as shown in fig. 9, including the intra-body interventional fan-scan probe with rotational positioning 1 and the imaging host 2 provided by embodiment 1.
The imaging host 2 is internally provided with a control module which is respectively connected with the servo motor 112, the ultrasonic transducer 113, the sensor 121 and the inductor 122 in a wired or wireless communication mode to provide the functions of power supply, data acquisition and the like; in this embodiment, a wired communication method is adopted.
The control module is further connected with a display of the imaging host 2 in a wired or wireless manner, displays information acquired by the ultrasonic transducer 113 in an image form, calibrates and synthesizes the image with information acquired by the sensor 121 and the sensor 122, accurately judges the actual direction switching position and the sector scanning angle of the ultrasonic transducer 113, and does not cause image distortion during image synthesis.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An internal intervention sector-scanning probe with rotational positioning, comprising:
the ultrasonic mechanism comprises a shell with a cavity, an ultrasonic transducer and a servo motor which are arranged in the cavity together, wherein the servo motor is connected with the ultrasonic transducer to drive the ultrasonic transducer to periodically perform sector scanning movement relative to the shell;
the calibration mechanism comprises a sensor and an inductor which are oppositely arranged on the shell and the ultrasonic transducer, wherein a plurality of end position calibration units corresponding to two circumferential ends of sector scanning movement and an interval calibration unit distributed between the end position calibration units are arranged on the sensor or the inductor, the end position calibration unit acquires a sensor signal opposite to the end position calibration unit or gives the sensor signal opposite to the end position calibration unit, and the interval calibration unit acquires the sensor signal opposite to the end position calibration unit or gives the sensor signal opposite to the end position calibration unit, so that the direction switching position and the sector scanning angle of the ultrasonic transducer relative to the shell in sector scanning movement are calibrated respectively.
2. The probe of claim 1, wherein the signal sensing method between the sensor and the sensor is one of light sensing and magnetic sensing.
3. The intra-body interventional fan-scan probe with rotational positioning according to claim 2, wherein the end position calibration unit is connected with the servo motor, and the servo motor is controlled to perform steering switching by transmitting a signal between the end position calibration unit and the sensor or the inductor opposite thereto to the servo motor.
4. An intracorporeal interventional fan-scan probe with rotational positioning according to any one of claims 1 to 3, wherein said number of sensors is one and disposed on said ultrasound transducer, and said number of sensors is several and disposed on an inner wall surface of said housing.
5. The intra-body interventional fan-scan probe with rotational positioning of claim 4, wherein the sensors corresponding to both circumferential ends of a fan-scan motion form the end position calibration units, and the remaining sensors form the zone calibration units, the zone calibration units being equally spaced between the end position calibration units.
6. The internally invasive sector-scanning probe with rotational positioning according to claim 5, wherein said ultrasound mechanism further comprises an ultrasound base for fixing said ultrasound transducer, a sensing base for fixing said sensor, said ultrasound base and said sensing base being disposed at the output end of said servo motor and moving synchronously.
7. The in vivo interventional fan-scan probe with rotational positioning of claim 6, wherein the ultrasound base is provided with a first mounting portion for mounting the ultrasound transducer and a mounting through hole for one end of the sensing base to extend into;
the sensing base protrudes out of the other end of the ultrasonic base, and a second installation part for installing the sensor is arranged at the other end of the ultrasonic base.
8. The internally invasive sweeping probe with rotational positioning according to claim 7, wherein said ultrasound mechanism further comprises an inner housing disposed within said cavity for said sensors to extend into, said sensors being equally spaced on said inner housing.
9. An ultrasound imaging system, comprising:
an intracorporeal interventional fanning probe with rotational positioning according to any one of claims 1-8;
and the imaging host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022310050.3U CN214017602U (en) | 2020-10-16 | 2020-10-16 | In-vivo interventional fan-scanning probe with rotary positioning function and ultrasonic imaging system comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022310050.3U CN214017602U (en) | 2020-10-16 | 2020-10-16 | In-vivo interventional fan-scanning probe with rotary positioning function and ultrasonic imaging system comprising same |
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| CN214017602U true CN214017602U (en) | 2021-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498452A (en) * | 2022-11-07 | 2022-12-20 | 深圳英美达医疗技术有限公司 | Dual-mode probe quick pulling and inserting mechanism |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498452A (en) * | 2022-11-07 | 2022-12-20 | 深圳英美达医疗技术有限公司 | Dual-mode probe quick pulling and inserting mechanism |
| CN115498452B (en) * | 2022-11-07 | 2023-02-14 | 深圳英美达医疗技术有限公司 | Dual-mode probe quick plugging mechanism |
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