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WO2025015451A1 - Sonde ultrasonore - Google Patents

Sonde ultrasonore Download PDF

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Publication number
WO2025015451A1
WO2025015451A1 PCT/CN2023/107468 CN2023107468W WO2025015451A1 WO 2025015451 A1 WO2025015451 A1 WO 2025015451A1 CN 2023107468 W CN2023107468 W CN 2023107468W WO 2025015451 A1 WO2025015451 A1 WO 2025015451A1
Authority
WO
WIPO (PCT)
Prior art keywords
inductor
inner core
rotating inner
hole
ultrasonic probe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/107468
Other languages
English (en)
Chinese (zh)
Inventor
唐为忠
周敏敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ultrasound Biotechnology Shanghai Co Ltd
Original Assignee
Ultrasound Biotechnology Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ultrasound Biotechnology Shanghai Co Ltd filed Critical Ultrasound Biotechnology Shanghai Co Ltd
Priority to PCT/CN2023/107468 priority Critical patent/WO2025015451A1/fr
Publication of WO2025015451A1 publication Critical patent/WO2025015451A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters

Definitions

  • the present invention relates to the technical field of medical equipment, and in particular to an ultrasonic probe.
  • Bronchial ultrasound is a new technology developed in recent years. It uses an ultrasonic bronchoscope or a miniature ultrasound probe to enter the trachea and bronchial lumen through a bronchoscope. Then, through scanning, the various layers of the trachea and bronchial wall structure can be clearly displayed, including the adjacent tissue structures around the lumen. For example, ultrasound imaging of mediastinal lymph nodes.
  • ultrasound products used in clinical practice are generally divided into two categories.
  • One is an ultrasonic bronchoscope, that is, an ultrasound probe embedded in an optical fiber structure, which can scan along the long axis of the airway and can be used to guide needle aspiration biopsy in real time.
  • an ultrasonic probe contains a rotary joint, an inductor and a transducer, wherein the transducer is connected to the rotary joint, and the inductor is installed in the rotary joint.
  • the inductor is fixed to the bottom of the groove by screws and threaded holes, and then covered with a brass sheet to seal the cut groove.
  • the brass sheet is only set on one side of the rotating inner core, and the brass sheet and the rotating inner core are made of different materials, the part containing the brass sheet and the part not containing the brass sheet in the circumferential direction have different weights, resulting in the center of gravity of the inductor and the central axis of the rotating inner core not coinciding, so that the weight of the rotating inner core and the inductor as a whole is unbalanced on the circumference.
  • the object of the present invention is to provide an ultrasonic probe, by improving the structure of a rotating inner core and a sealing part so as to fix the center of gravity of the inductor on the central axis of the rotating inner core, so as to prevent the effect of weightlessness caused by centrifugal force, thereby avoiding the image shaking and further avoiding misdiagnosis caused by clinical image distortion.
  • the present invention provides an ultrasonic probe, comprising a rotating inner core, an inductor and a sealing portion, wherein:
  • the rotating inner core has a first surface and a second surface adjacent to each other, the first surface is provided with a first through hole, the first through hole is communicated with the inner cavity of the rotating inner core, and the second surface is provided with N second through holes, where N is a positive integer;
  • the sealing portion is sleeved outside the rotating inner core and covers the openings of the N second through holes;
  • the sealing portion shrinks due to heat to contact the center of gravity of the inductor and is fixed on the central axis of the rotating inner core.
  • the sealing portion is a sealing tube, wherein the sealing tube is made of a heat shrinkable material.
  • it also includes a transducer, an outer tube and a driving flexible shaft, wherein the rotating inner core, the inductor, the sealing part, the transducer and the driving flexible shaft are all arranged in the outer tube; and the driving flexible shaft is used to connect the transducer and the rotating inner core.
  • it also includes a first wire and a second wire respectively arranged on the positive and negative poles of the inductor, wherein one end of the first wire away from the inductor is electrically connected to the negative pole of the male connector, and one end of the second wire away from the inductor is electrically connected to the positive pole of the transducer.
  • the N second through holes are divided into a plurality of groups, and the plurality of groups of second through holes are arranged in a ring shape around the central axis of the rotating inner core, wherein the distance between two adjacent second through holes in each group is consistent.
  • a step for supporting the inductor is further provided in the rotating inner core, and a fixing block is provided at one end of the inductor away from the step, wherein the weight of the step is consistent with that of the fixing block.
  • the inductor is fixedly connected to the step, wherein the inductor and the step are fixed by gluing.
  • it also includes a recessed portion provided in the rotating inner core, and a protruding portion provided on the inductor, wherein when the inductor is installed into the rotating inner core through the second through hole, the protruding portion enters into the recessed portion.
  • the recessed portion is a third through hole provided on the rotating inner core
  • the protruding portion includes a fourth through hole arranged on the inductor, a moving column movably arranged in the fourth through hole, and an elastic member arranged in the fourth through hole and used for connecting the fourth through hole and the moving column.
  • it further comprises two contact plates respectively arranged at opposite ends of the inductor, and a contact rod connected to the contact plates, wherein the contact rod is movably inserted into a contact hole provided on the inductor, and a return spring is wound around the contact rod, and both ends of the return spring are They are respectively fixedly connected to the side wall of the abutment rod and the side wall of the abutment hole, wherein the abutment hole is communicated with the fourth through hole, and the abutment rod is matched with the moving column.
  • the present invention provides N second through holes on the rotating inner core to balance the weight imbalance of the rotating inner core caused by the openings; meanwhile, the sealing part is axially sleeved outside the rotating inner core, so that the weight of the sealing part on the circumference of the rotating inner core is consistent; and due to the interference of the sealing part, the center of gravity of the inductor is fixed on the central axis of the rotating inner core, thereby further preventing the problem of centrifugal weightlessness, and then the rotating inner core can move the transducer on the same rotating axis, avoiding shaking of the generated image, thereby avoiding misdiagnosis caused by clinical image distortion.
  • FIG1 is a schematic diagram of the combined structure of an inductor, a rotating inner core and a brass sheet in the prior art
  • FIG2 is a schematic structural diagram of a first embodiment of the assembly of an inductor, a sealing portion and a rotating inner core in the present invention
  • FIG. 3 is a schematic diagram of a top view of a rotating inner core in a first embodiment of an assembly structure of an inductor, a sealing portion and a rotating inner core according to the present invention
  • FIG4 is a schematic structural diagram of an inductor in a first embodiment of an assembly structure of an inductor, a sealing portion, and a rotating inner core in the present invention
  • FIG5 is a schematic diagram of a partial structure of an ultrasonic probe in the present invention.
  • FIG6 is a schematic structural diagram of a second embodiment of the assembly of an inductor, a sealing portion and a rotating inner core in the present invention
  • FIG7 is a schematic diagram of the structure of the concave portion and the convex portion of the present invention.
  • FIG8 is a schematic diagram of the combined structure of the contact plate, the contact rod and the return spring in the present invention.
  • FIG. 9 is a schematic diagram of an exploded structure of a third embodiment of an assembly structure of an inductor, a sealing portion, and a rotating inner core in the present invention.
  • Reference numerals 1. Rotating inner core; 11. First surface; 12. Second surface; 13. First through hole; 14. Inner cavity; 15. second through hole; 16. step; 17. fixed block; 18. recessed portion; 19. protruding portion; 191. fourth through hole; 192. movable column; 193. elastic member; 2. Inductor; 21. Contact plate; 22. Contact rod; 23. Contact hole; 24. Return spring; 25. L-shaped blocking plate; 3. Sealing part; 4. Transducer; 5. External management; 6. Driving flexible shaft; 7. First conductor; 8. Second wire.
  • FIGS. 1 is a schematic structural diagram of a first embodiment of an assembly of an inductor, a sealing portion and a rotating inner core in the present invention
  • FIG3 is a schematic structural diagram of a top view of a rotating inner core in a first embodiment of an assembly structure of an inductor, a sealing portion and a rotating inner core in the present invention
  • FIG4 is a schematic structural diagram of an inductor in a first embodiment of an assembly structure of an inductor, a sealing portion and a rotating inner core in the present invention; as shown in FIGS.
  • the ultrasonic probe comprises a rotating inner core 1, an inductor 2 and a sealing portion 3, wherein the rotating inner core 1 has adjacent first surfaces 11 (which can be connected as the left side of the rotating inner core 1) and a second surface 12 (which can be understood as the circumferential surface of the rotating inner core 1 facing the operator), a first through hole 13 is provided on the first surface 11, the first through hole 13 is connected to the inner cavity 14 of the rotating inner core 1, and N second through holes 15 are provided on the second surface 12, where N is a positive integer; the sealing part 3 is sleeved outside the rotating inner core 1 and covers the openings of the N second through holes 15; when the inductor 2 is installed into the rotating inner core 1 through the second through holes 15, the sealing part 3 shrinks due to heat to contact the center of gravity of the inductor 2 and is fixed on the central axis of the rotating inner core 1.
  • the second through hole 15 is not connected to the first through hole 13.
  • FIG. 5 is a schematic diagram of the local structure of the ultrasonic probe in the present invention; as shown in Figure 5, the ultrasonic probe also includes a transducer 4, an outer tube 5 and a driving flexible shaft 6, wherein the rotating inner core 1, the inductor 2, the sealing portion 3, the transducer 4 and the driving flexible shaft 6 are all arranged in the outer tube 5; the driving flexible shaft 6 is used to connect the transducer 4 and the rotating inner core 1.
  • the present invention provides N second through holes 15 on the rotating inner core 1 to balance the weight imbalance of the rotating inner core 1 caused by the opening; at the same time, the sealing part 3 is sleeved on the rotating inner core 1 from the axial direction, so that the weight of the sealing part 3 on the circumference of the rotating inner core 1 is consistent; and due to the interference of the sealing part 3, the center of gravity of the inductor 2 is fixed on the central axis of the rotating inner core 1, which can further prevent the problem of centrifugal weightlessness, and then the rotating inner core 1 can move with the transducer 4 on the same rotating axis to avoid shaking and image distortion.
  • the inductor 2 is added to the present invention to achieve electrical matching, and the shape structure of the inductor 2 is improved so that it can match the structure of the rotating inner core 1.
  • the inductor 2 is designed to match it through the inherent properties of the inductor 2 itself.
  • the inductor 2 and the transducer 4 are connected in series to form an LC resonant circuit. When resonating, the capacitive reactance and the inductive reactance offset each other to 0.
  • the total impedance of the capacitor is the smallest, and the complex impedance phase is 0, which is a pure resistance characteristic, that is, the self-resonant frequency of the capacitor, so that the magnetostrictive
  • the excitation energy of the telescopic sensor is mainly concentrated near the designed center frequency.
  • the impedance of the coil is matched through an external circuit, and the slope change of the impedance measurement line is intensified, thereby increasing the energy of the ultrasonic wave excited near the slope.
  • the ultrasonic probe further includes a first wire 7 and a second wire 9 respectively arranged on the positive and negative poles of the inductor 2, wherein one end of the first wire 7 away from the inductor 2 is electrically connected to the negative pole of the male connector, and one end of the second wire 9 away from the inductor 2 is electrically connected to the positive pole of the transducer 4, as shown in FIG4 .
  • the sealing portion 3 is a sealing tube, wherein the sealing tube is made of heat shrink material.
  • a sealing tube is used to replace the existing brass sheet to seal the second through hole 15 on the rotating inner core 1.
  • the number of the second through holes 15 may be 1, 2, 3 or more.
  • the number of the second through holes 15 is two, and when the number of the second through holes 15 is two, the two second through holes 15 are arranged opposite to each other.
  • the number of the second through holes 15 is three, the three second through holes 15 are arranged in an equidistant annular pattern around the central axis of the rotating inner core 1. This arrangement can avoid the problem of centrifugal weightlessness caused by the uneven arrangement of the second through holes 15 on the rotating inner core 1.
  • the number of the second through holes 15 is set to two, and the two second through holes 15 are arranged opposite to each other.
  • the inductor 2 is installed in the rotating inner core 1 through one of the second through holes 15, and then the sealing part 3 is sleeved outside the rotating inner core 1 and blocks the opening of the second through hole 15, and then the sealing part 3 is heat-treated, and the sealing part 3 shrinks due to heat.
  • the shrinking process it forms a resistance to the inductor 2, and the center of gravity of the inductor 2 that is resisted remains on the central axis of the rotating inner core 1.
  • a step 16 for supporting the inductor 2 is further provided in the rotating inner core 1, and a fixing block 17 is provided at one end of the inductor 2 away from the step 16, wherein the weight of the step 16 is consistent with that of the fixing block 17.
  • the combined weight of the step 16 and the fixing block 17 is used to fill the missing part of the rotating inner core 1 at the two second through holes 15, so that the weight of the front and rear of the rotating inner core 1 is consistent with the weight of the top and bottom, so that the weight of the rotating inner core 1 is kept consistent in the circumferential direction.
  • the weight of the step 16 and the fixing block 17 is consistent, and the step 16 and the fixing block 17 are respectively arranged on both sides of the inductor 2, so as to balance the weight in the front and rear directions, thereby keeping the center of gravity of the inductor 2 on the central axis of the rotating inner core 1.
  • the inductor 2 and the fixing block 17 form a T-shaped structure.
  • the existing inductor 2 and the rotating inner core 1 are fixed by two screws, which makes the installation and disassembly process cumbersome and complicated to operate; on the other hand, the screws themselves have weight, which increases the risk of centrifugal weightlessness.
  • the inductor 2 is fixedly connected to the step 16, wherein the inductor 2 and the step 16 are fixed by gluing.
  • the gluing method used in this embodiment can reduce the difficulty of fixing the inductor 2 and the step 16.
  • the weight of the fixing glue is very light and can be ignored relative to the rotating inner core 1, the problem of centrifugal weightlessness caused by the fixing glue can be eliminated.
  • the inductor 2 and the step 16 can also be fixed by other methods besides gluing.
  • the first wire 7 is inserted from the left end of the rotating inner core 1 and comes out from the second through hole 15 in the front;
  • the second wire 9 is inserted from the right side through the first through hole 13 into the rotating inner core 1 and comes out from the second through hole 15 in the front; then the first wire 7 and the second wire 9 are respectively connected to the positive and negative electrodes of the inductor 2.
  • the inductor 2 is connected to the first wire 7 and the second wire 9, the inductor 2 is inserted into the rotating inner core 1 from the second through hole 15 in the front.
  • the present invention also provides a first embodiment of the assembly structure of the inductor 2, the sealing part 3 and the rotating inner core 1.
  • FIG6 is a schematic structural diagram of the second embodiment of the assembly of the inductor, the sealing part and the rotating inner core in the present invention; as shown in FIG6 , the rotating inner core 1 is provided with two opposite second through holes 15, and the two second through holes 15 are provided in front and behind the rotating inner core 1.
  • the second through holes 15 are not provided above and below the rotating inner core 1; the inductor 2 is installed in the rotating inner core 1 through the second through holes 15; in this embodiment, the inductor 2 is a rectangular structure, and the length direction of the inductor 2 is provided along the two second through holes 15, so that the mass of the inductor 2 can fill the missing part of the rotating inner core 1 at the two second through holes 15, so that the weight of the rotating inner core 1 is balanced by the inductor 2.
  • the second through hole 15 is not connected to the first through hole 13.
  • FIG7 is a schematic diagram of the structure of the recessed portion and the protruding portion in the present invention.
  • the ultrasonic probe further includes a recessed portion 18 provided in the rotating inner core 1, and a protruding portion 19 provided on the inductor 2, wherein when the inductor 2 is loaded into the rotating inner core 1 through the second through hole 15, the protruding portion 19 enters into the recessed portion 18.
  • the cooperation of the recessed portion 18 and the protruding portion 19 can limit the inductor 2 in the rotating inner core 1, so that when installing, it is only necessary to align the positions of the recessed portion 18 and the protruding portion 19 to adjust the position of the inductor 2 in the rotating inner core 1, thereby reducing the difficulty of installing the device and improving the installation efficiency of the device.
  • the combination of the recessed portion 18 and the protruding portion 19 is provided in two groups, and the two groups of the recessed portions 18 and the protruding portions 19 are symmetrically arranged in the rotating inner core 1.
  • the recessed portion 18 is a third
  • the protrusion 19 includes a fourth through hole 191 provided on the inductor 2, a moving column 192 movably provided in the fourth through hole 191, and an elastic member 193 provided in the fourth through hole 191 and used to connect the fourth through hole 191 with the moving column 192, as shown in FIG7.
  • the moving column 192 will move into the fourth through hole 191.
  • the elastic member 193 is compressed.
  • the elastic member 193 will push the moving column 192 to move out of the fourth through hole 191 and enter the third through hole, thereby limiting and locking the inductor 2 in the rotating inner core 1.
  • the cavity of the third through hole is a trumpet-shaped structure, and the diameter of one end of the third through hole facing the rotating inner core 1 is larger than the diameter of one end of the third through hole facing the outside of the rotating inner core 1.
  • the elastic member 193 is a driving spring or a guide assembly, but is not limited to the driving spring or the guide assembly, wherein the guide assembly includes a guide rod, a guide cylinder and a guide spring, the guide rod is movably inserted in the guide cylinder, the guide spring is wound and connected to the outside of the guide rod, and the two ends of the guide spring are respectively fixedly connected to the side wall of the guide rod and the outer wall of the guide cylinder.
  • the recessed portion 18 is a groove
  • the protruding portion 19 is a semicircular protrusion, wherein the semicircular protrusion is made of rubber.
  • FIG8 is a schematic diagram of the combined structure of the contact plate, the contact rod and the return spring in the present invention.
  • the ultrasonic probe further includes two contact plates 21 respectively arranged at opposite ends of the inductor 2, and a contact rod 22 connected to the contact plates 21, wherein the contact rod 22 is movably inserted into a contact hole 23 provided on the inductor 2, and a return spring 24 is wound around the contact rod 22, and the two ends of the return spring 24 are respectively fixedly connected to the side wall of the contact rod 22 and the side wall of the contact hole 23, wherein the contact hole 23 is connected to the fourth through hole 191, and the contact rod 22 is matched with the moving column 192.
  • the combination structure of the contact plates 21, the contact rod 22 and the return spring 24 is arranged to firmly lock the moving column 192 in the third through hole, so that the inductor 2 is firmly fixed in the rotating inner core 1 through the moving column 192 and the third through hole, and further after the sealing portion 3 performs heat shrinkage treatment on the rotating inner core 1, the inductor 2 can be effectively prevented from shaking in the rotating inner core 1.
  • the difference between the second embodiment of the assembly structure of the inductor 2, the sealing part 3 and the rotating inner core 1 and the first embodiment is that in the second embodiment of the assembly structure of the inductor 2, the sealing part 3 and the rotating inner core 1, the inductor 2 is suspended in the rotating inner core 1.
  • the inductor 2 is first locked in the rotating inner core 1 by the cooperation and limit of the recessed part 18 and the protruding part 19. Then, as the sealing part 3 shrinks due to heat, under the action of the shrinkage resistance force, it will form a resistance to the resistance plate 21 and resist the resistance plate 21 to move closer to the inductor 2.
  • the resistance rod 22 will move into the fourth through hole 191 and resist the moving column 192 to move out of the fourth through hole 191, so that the moving column 192 moves further into the third through hole, thereby making the moving column 192 more tightly fitted with the side wall of the third through hole due to the resistance.
  • the first wire 7 is inserted from the left end of the rotating inner core 1 and comes out from the second through hole 15 in the front;
  • the second wire 9 is inserted from the right side through the first through hole 13 into the rotating inner core 1 and comes out from the second through hole 15 in the front; then, after respectively connecting the first wire 7 and the second wire 9 to the positive and negative poles of the inductor 2, the inductor 2 is inserted into the rotating inner core 1 from the second through hole 15 in the front.
  • FIG9 is a schematic diagram of the exploded structure of the third embodiment of the assembly structure of the inductor, the sealing part and the rotating inner core in the present invention.
  • the difference between the third embodiment of the assembly structure of the inductor 2, the sealing part 3 and the rotating inner core 1 and the second embodiment and the first embodiment is that in the third embodiment of the assembly structure of the inductor 2, the sealing part 3 and the rotating inner core 1, only one second through hole 15 is provided on the rotating inner core 1, and the second through hole 15 is connected to the first through hole 13.
  • an L-shaped structure is cut on the rotating inner core 1, so that it can be determined that the cavity of the second through hole 15 is an L-shaped structure.
  • an L-shaped blocking plate 25 matching the L-shaped structure is connected to the inductor 2. After the inductor 2 is respectively connected to the first wire 7 and the second wire 9, the inductor 2 is installed in the rotating inner core 1. The L-shaped blocking plate 25 blocks the second through hole 15 of the L-shaped structure. In this way, when the inductor 2 is installed in the rotating inner core 1, there is no need to add an external structure, which can prevent the problem of centrifugal weightlessness.
  • the cavity of the second through hole 15 and the L-shaped blocking plate 25 are both trumpet-shaped structures, and the upper end size of the cavity of the second through hole 15 is larger than the lower end size.
  • the inductor 2 in the third embodiment of the assembly structure of the inductor 2, the sealing portion 3 and the rotating inner core 1, the inductor 2 is suspended in the rotating inner core 1, and during the installation process, the inductor 2 achieves a limit locking effect through the structural cooperation of the L-shaped sealing plate 25 and the second through hole 15, and the L-shaped sealing plate 25 and the second through hole 15 have a simple structure and are easy to process and prepare, thereby effectively reducing the processing cost.
  • the sealing part 3 and the rotating inner core 1 the first wire 7 is inserted from the left end of the rotating inner core 1 and comes out from the second through hole 15 in the front; the second wire 9 does not need to be inserted into the first through hole 13, thereby reducing the difficulty of installing the equipment; then the first wire 7 and the second wire 9 are respectively connected to the positive and negative poles of the inductor 2, and after the inductor 2 is connected to the first wire 7 and the second wire 9, the inductor 2 is inserted from the second through hole 15 in the front into the rotating inner core 1, and as the inductor 2 is installed, the second through hole 15 is blocked with the L-shaped blocking plate 25, and before blocking, the second wire 9 will enter the first through hole 13 along the second through hole 15.

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Abstract

L'invention concerne une sonde ultrasonore, comprenant un noyau interne rotatif (1), un inducteur (2), une portion d'étanchéité (3), et un transducteur (4) relié de manière coaxiale au noyau interne rotatif (1), le noyau interne rotatif (1) ayant une première surface (11) et une deuxième surface (12) adjacentes l'une à l'autre, la première surface (11) étant pourvue d'un premier trou traversant (13), le premier trou traversant (13) étant utilisé pour faire communiquer le noyau interne rotatif (1) et le transducteur (4), et la deuxième surface (12) étant pourvue de N deuxièmes trous traversants (15), N étant un nombre entier positif. La portion d'étanchéité (3) est emmanchée à l'extérieur du noyau interne rotatif (1) et recouvre des ouvertures des N deuxièmes trous traversants (15). Lorsque l'inducteur (2) est monté dans le noyau interne rotatif (1) à travers les deuxièmes trous traversants (15), la portion d'étanchéité (3) est chauffée et contractée pour venir en butée contre l'inducteur (2), fixant le centre de gravité de celui-ci sur l'axe central du noyau interne rotatif (1). Dans la présente sonde ultrasonore, au moyen de l'amélioration des structures du noyau interne rotatif (1) et de la portion d'étanchéité (3), le centre de gravité de l'inducteur (2) est fixé sur l'axe central du noyau interne rotatif (1), ce qui permet d'obtenir l'effet de prévention de l'impesanteur due à la force centrifuge, et d'éviter un mauvais diagnostic provoqué par un tremblement d'image et une distorsion d'image clinique.
PCT/CN2023/107468 2023-07-14 2023-07-14 Sonde ultrasonore Pending WO2025015451A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/107468 WO2025015451A1 (fr) 2023-07-14 2023-07-14 Sonde ultrasonore

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Application Number Priority Date Filing Date Title
PCT/CN2023/107468 WO2025015451A1 (fr) 2023-07-14 2023-07-14 Sonde ultrasonore

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WO2025015451A1 true WO2025015451A1 (fr) 2025-01-23

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US20200196873A1 (en) * 2017-08-16 2020-06-25 Helmholtz Zentrum Munchen Deutsches Forschungszentrum Fur Gesundheit Und Umwelt (Gmbh) Device for endoscopic optoacoustic imaging, in particular for endoscopic optoacoustic imaging of cavities and hollow objects
CN112401936A (zh) * 2019-08-22 2021-02-26 深圳北芯生命科技有限公司 具有驱动装置的超声探头
CN212916417U (zh) * 2020-06-23 2021-04-09 无锡市和森超声科技有限公司 一种超声换能器组件
CN116849710A (zh) * 2023-07-14 2023-10-10 声索生物科技(上海)有限公司 一种超声探头

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1593350A (zh) * 2004-06-28 2005-03-16 天津大学 医用经内窥镜微型超声探头
CN103531011A (zh) * 2013-10-31 2014-01-22 清华大学 微型旋转传感器/换能器的脉冲信号非接触传输装置
CN106536068A (zh) * 2014-07-17 2017-03-22 皇家飞利浦有限公司 超声换能器布置和组件、同轴电线组件、超声探头及超声成像系统
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CN112401936A (zh) * 2019-08-22 2021-02-26 深圳北芯生命科技有限公司 具有驱动装置的超声探头
CN212916417U (zh) * 2020-06-23 2021-04-09 无锡市和森超声科技有限公司 一种超声换能器组件
CN116849710A (zh) * 2023-07-14 2023-10-10 声索生物科技(上海)有限公司 一种超声探头

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