Ultrasonic diagnostic equipment and IVUS probe thereof

Abstract

The present application discloses an ultrasonic diagnostic device and an IVUS probe thereof, comprising a rotating component electrically connected to a controller and a catheter connector housing sleeved on the outside of the rotating component, a first magnetic component mounted on the rotating component, a second magnetic component mounted on the catheter connector housing, and end faces of the first magnetic component and the second magnetic component with the same magnetic pole facing each other, so as to form a repulsive force and generate a static rotation gap between the rotating component and the catheter connector housing. After the controller and the probe are assembled, the IVUS probe provided by the present application cannot contact the rotating component and the catheter connector housing due to the repulsive force generated between the first magnetic component and the second magnetic component, thereby avoiding the problem of collision / friction of the static rotation gap. At the same time, the repulsive force between the first magnetic component and the second magnetic component also makes it difficult for the rotating component and the rotating shaft of the controller to loosen, thereby avoiding the generation of NURD, effectively extending the use time of the probe, reducing the consumption of PIM, and effectively reducing costs.

Description

Technical Field

[0001] The present application relates to the field of intravascular ultrasound echo imaging systems, and in particular to an IVUS probe. In addition, the present application also relates to an ultrasound diagnostic device comprising the IVUS probe. Background Art

[0002] In the intravascular ultrasound echo imaging system (IVUS) technology, there is a very important indicator, which is called NURD in the industry, namely Non-Uniform Rotation Distortion, nonlinear rotation image distortion, or uneven rotation deformation, etc. This is a proportional imbalance quantitative parameter distortion obtained by comparing the ultrasound echo imaging with the real image. This parameter determines whether the doctor's judgment on the size and shape of the lesion is accurate, as well as the choice of treatment plan to be taken later, and plays an important reference role.

[0003] In the IVUS design, at the joint between the catheter structure and the electrical part, there is a phenomenon of misalignment of the axis due to frequent plugging and unplugging and individual errors of different in-vivo catheters. The intravascular ultrasound echo imaging device is placed on the human body and has strict requirements on volume and weight. In order to reduce the volume, no bearings or sleeves can be set in the catheter. The rotating parts and stationary parts of the catheter assembly are in a natural gap state. Only after the catheter is inserted on the PIM or CCU rotating shaft, the connector inside the catheter assembly fixes the rotating parts and rotates with the PIM rotating shaft. In order to prevent cross infection, the catheter must be replaced once for each patient, and the joint part is precisely the place where the operation is most frequent and the life is the most fragile. After the electrical connector of the catheter part is plugged in, it can ensure the circumferential gap through precise structural design, but it cannot ensure the gap at the outlet end of the catheter, that is, the gap between the rotating part and the stationary part at the end away from the PIM rotating shaft. During operation, the rotating part and the stationary part will make irregular friction movements at the static-rotation gap of the catheter assembly. Most of the NURD phenomenon is caused in this way. Among them, PIM stands for Patient Interface Module, which means patient interface module; CCU stands for Catheter Control Unit, which means catheter control unit module.

[0004] The commonly used probes in the prior art increase the insertion length of the connector and the number of pins and sockets to ensure that the product image does not have or has less severe NURD. However, although the solutions in the prior art effectively extend the use time without NURD, as the use time increases or the number of patients examined in the hospital increases, the bite force of the connector will still weaken and NURD will occur. At this time, the expensive PIM rotating head still needs to be replaced, which is one of the reasons for the high cost of cardiovascular ultrasound.

[0005] Therefore, how to improve the stability of IVUS probe and reduce image distortion is a technical problem that technicians in this field need to solve. Summary of the invention

[0006] The purpose of the present application is to provide an IVUS probe, which can effectively improve its reliability, reduce image distortion, have a long service life and low cost. Another purpose of the present application is to provide an ultrasonic diagnostic device including the IVUS probe.

[0007] To achieve the above objectives, this application provides the following technical solutions:

[0008] An IVUS probe comprises a rotating component electrically connectable to a controller and a catheter connector housing sleeved on the rotating component, wherein a first magnetic component is mounted on the rotating component and a second magnetic component is mounted on the catheter connector housing, and end faces of the first magnetic component and the second magnetic component having the same magnetic poles face each other so as to form a repulsive force and generate a static rotation gap between the rotating component and the catheter connector housing.

[0009] Preferably, the first magnetic component and / or the second magnetic component is a magnet or an electromagnetic component.

[0010] Preferably, the first magnetic component and / or the second magnetic component is in a disc shape, and a center hole is provided in the middle for the signal line and / or the transmission shaft to pass through.

[0011] Preferably, the catheter connector housing further includes a locking portion which can be locked by a locking assembly of the controller.

[0012] Preferably, the rotating component is provided with a socket or a pin which can be electrically connected to the rotating shaft of the controller.

[0013] Preferably, a limiting component is further provided at the open end of the catheter joint housing, and when the catheter joint housing is separated from the controller, the limiting component can abut against the rotating component to separate the rotating component from the rotating shaft of the controller.

[0014] Preferably, the rotating component comprises a rotating housing, the first magnetic component is arranged at one end of the rotating housing away from the controller; the second magnetic component is arranged at one end of the conduit joint housing away from the controller; the static rotation gap is located between the rotating housing and the second magnetic component;

[0015] Alternatively, the rotating component includes a rotating shell, the first magnetic component is arranged at an end outside the rotating shell away from the controller; the second magnetic component is installed at an end inside the catheter joint shell away from the controller; the static rotation gap is located between the first magnetic component and the second magnetic component.

[0016] The present application also provides an ultrasonic diagnostic device, comprising any one of the IVUS probes described above.

[0017] The IVUS probe provided in the present application includes a rotating component that can be electrically connected to a controller and a catheter connector housing that is sleeved on the outside of the rotating component, a first magnetic component is installed on the rotating component, and a second magnetic component is installed on the catheter connector housing, and the end faces of the first magnetic component and the second magnetic component with the same magnetic poles are opposite to each other, so as to form a repulsive force to generate a static rotation gap between the rotating component and the catheter connector housing. After the controller and the probe are assembled, the IVUS probe provided in the present application cannot contact the rotating component and the catheter connector housing due to the repulsive force generated between the first magnetic component and the second magnetic component, thereby avoiding the problem of collision / friction of the static rotation gap. At the same time, the repulsive force between the first magnetic component and the second magnetic component also makes it difficult for the rotating component and the rotating shaft of the controller to loosen, thereby avoiding the generation of NURD, effectively extending the use time of the probe, reducing the consumption of PIM, and effectively reducing costs.

[0018] The ultrasonic diagnostic equipment provided in the present application is provided with the above-mentioned IVUS probe. Since the IVUS probe has the above-mentioned technical effects, the ultrasonic diagnostic equipment provided with the IVUS probe should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic cross-sectional structure diagram of a specific implementation of the IVUS probe provided in this application;

[0021] Figure 2 A front view of a specific implementation of a magnetic component in an IVUS probe provided in the present application;

[0022] Figure 3 A right side view of a specific implementation of a magnetic component in an IVUS probe provided in the present application;

[0023] Figure 4 A schematic cross-sectional view of another specific embodiment of the IVUS probe provided in the present application;

[0024] The invention comprises: a release button (1), a locking fulcrum (2), a plug buckle (3), a controller housing (4), a rotating shaft (5), a controller transmission component (6), a jack (7), a plug (8), a catheter transmission component (9), a rotating component (10), a first magnetic component (11), a second magnetic component (12), a catheter joint housing (13), a coaxial line (14), a static-rotation gap (15), a groove (16), a sheath tube (17), a central hole (18), an end face (19), and a limiting component (20). DETAILED DESCRIPTION

[0025] The core of the present application is to provide an IVUS probe, which can significantly reduce the problem of NURD, has a long service life and low cost. Another core of the present application is to provide an ultrasonic diagnostic device including the IVUS probe.

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Please refer to Figures 1 to 4 , Figure 1 A schematic cross-sectional structure diagram of a specific implementation of the IVUS probe provided in this application; Figure 2 A front view of a specific implementation of a magnetic component in an IVUS probe provided in the present application; Figure 3 A right side view of a specific implementation of a magnetic component in an IVUS probe provided in the present application; Figure 4 This is a schematic cross-sectional structure diagram of another specific implementation of the IVUS probe provided in this application.

[0028] In this embodiment, the IVUS probe includes a rotating component 10 , a catheter connector housing 13 , and a first magnetic component 11 and a second magnetic component 12 .

[0029] The rotating component 10 can be electrically connected to the controller, and the catheter joint housing 13 is sleeved on the outside of the rotating component 10. When the probe is working, the rotating component 10 drives the coaxial line 14 to rotate, and the catheter joint housing 13 is stationary.

[0030] Furthermore, a first magnetic component 11 is installed on the rotating component 10, and a second magnetic component 12 is installed on the catheter joint housing 13. The end faces 19 of the first magnetic component 11 and the second magnetic component 12 with the same magnetic poles face each other to form a repulsive force to generate a static rotation gap 15 between the rotating component 10 and the catheter joint housing 13.

[0031] The IVUS probe provided in the present application, after the controller and the probe are assembled, the repulsive force between the first magnetic component 11 and the second magnetic component 12 makes it impossible for the rotating component 10 to contact the catheter connector housing 13, and the first magnetic component 11 and the second magnetic component 12 are maintained in a state of being close but not in contact, so that a certain static rotation gap 15 is maintained between the rotating component 10 and the catheter connector housing 13, thereby avoiding the problem of collision / friction of the static rotation gap 15. At the same time, the repulsive force between the first magnetic component 11 and the second magnetic component 12 also makes it difficult for the rotating component 10 to loosen the rotating shaft 5 of the controller, thereby avoiding the generation of NURD, effectively extending the use time of the probe, reducing the consumption of PIM, and effectively reducing costs.

[0032] On the basis of the above embodiments, the first magnetic component 11 and / or the second magnetic component 12 is a magnet or an electromagnetic component. Specifically, the magnet or the electromagnetic component should keep the ends with the same magnetic poles corresponding to each other.

[0033] On the basis of the above-mentioned embodiments, the first magnetic component 11 and / or the second magnetic component 12 are disc-shaped and have a center hole 18 in the middle for the signal line and / or the transmission shaft to pass through. The end faces 19 of the first magnetic component 11 and the second magnetic component 12 are attached to the inner wall or outer wall of the corresponding rotating component 10 or the catheter joint housing 13. The disc-shaped first magnetic component 11 and / or the second magnetic component 12 can match the existing cylindrical rotating component 10 and the cylindrical catheter joint housing 13.

[0034] Preferably, since the rotating component 10 rotates during operation, in order to maintain stability, the first magnetic component 11 may be in a disc shape, and the first magnetic component 11 may be in other shapes. Of course, in order to ensure uniform force, the first magnetic component 11 and the second magnetic component 12 are preferably in the same shape.

[0035] On the basis of the above embodiments, the catheter connector housing 13 further includes a locking portion that can be locked by the locking assembly of the controller. Specifically, the locking portion is preferably a groove 16 or a card slot. Specifically, the locking assembly includes a release button 1, a locking fulcrum 2 and a plug 8 buckle 3. The plug 8 buckle 3 can be engaged with the locking portion. The release button 1 can drive the plug 8 buckle 3 to swing relative to the locking fulcrum 2 to release the locked state.

[0036] Specifically, the release button 1 is connected to the plug 8 buckle 3, and the direction of the force is changed by the locking fulcrum 2, so that when it is pressed downward, the plug 8 buckle 3 moves upward and releases from the groove 16 of the catheter joint housing 13, thereby separating the two.

[0037] Based on the above embodiments, the rotating component 10 is provided with a socket 7 or a pin which can be electrically connected to the rotating shaft 5 of the controller. The rotating component 10 and the rotating shaft 5 of the controller are connected via the socket 7 or the pin. Preferably, the rotating component 10 is provided with a pin, and the rotating shaft 5 of the controller is provided with a socket 7.

[0038] On the basis of the above embodiments, a limiting component 20 is further provided at the open end of the catheter joint housing 13. When the catheter joint housing 13 is separated from the controller, the limiting component 20 can abut against the rotating component 10 to separate the rotating component 10 from the rotating shaft 5 of the controller.

[0039] Specifically, the limiting component 20 is annular and is detachably engaged with the inner circumference of the catheter connector housing 13. Figure 3 When the release button 1 is pressed, the catheter connector housing 13 is directly removed, and under the action of the limiting component 20, the limiting component 20 and the rotating component 10 are in contact with each other at opposite sides, so that the rotating component 10 cannot be removed from the catheter connector housing 13, and is removed at the same time as the rotating component 10 under the action of the limiting component 20, so that the IVUS probe is separated from the controller.

[0040] On the basis of the above-mentioned embodiments, the rotating component 10 includes a rotating shell, the first magnetic component 11 is arranged at one end of the rotating shell away from the controller; the second magnetic component 12 is arranged at one end of the catheter joint shell 13 away from the controller; the static rotation gap 15 is located between the rotating shell and the second magnetic component 12; in this way, the first magnetic component 11 is arranged inside the rotating shell, and the second magnetic component 12 is arranged inside the catheter joint shell 13, that is, both are arranged inside the corresponding shells, which can facilitate installation and reduce the possibility of falling off.

[0041] Alternatively, the rotating component 10 includes a rotating shell, and the first magnetic component 11 is arranged at an end of the rotating shell away from the controller; the second magnetic component 12 is installed at an end of the inside of the catheter joint shell 13 away from the controller; the static rotation gap 15 is located between the first magnetic component 11 and the second magnetic component 12; in this arrangement, the first magnetic component 11 is arranged outside the rotating shell, and the second magnetic component 12 is arranged inside the catheter joint shell 13, so that the first magnetic component 11 and the second magnetic component 12 are positioned opposite to each other, the distance is short, the magnetic force is large, and the effect is good.

[0042] Of course, the first magnetic component 11 may be arranged outside the rotating housing, and the second magnetic component 12 may be arranged inside the catheter joint housing 13. The specific arrangement may be selected according to actual needs and is not limited to the solution given in this embodiment.

[0043] Preferably, in order to improve stability, the first magnetic component 11 is fixed on the rotating housing, and the second magnetic component 12 is fixed on the catheter joint housing 13 .

[0044] In a specific embodiment, the IVUS probe includes: a release button 1, which is used to open the plug 8 buckle 3 so that the stuck catheter connector housing 13 can be pulled out; a locking fulcrum 2, which is used to change the direction of the force; the plug 8 buckle 3 is inserted into the catheter connector housing 13 before use, and the plug 8 buckle 3 firmly locks the stationary part of the catheter; a rotating shaft 55, which is used to transmit the rotational force of the motor to the rotating component 10 through the female jack 7 of the connector and the male pin of the connector catheter assembly; a controller transmission component 6, that is, an ultrasonic PULSE / echo transmission line, which is used The PUSE signal generated by the host is transmitted to the coaxial line 14 of the catheter assembly, and finally transmitted to the ultrasonic transducer array element of the core component of the catheter; the jack 7 has an elastic contact sheet inside, and its function is to bite the male pin of the catheter assembly and transmit electrical signals together with the catheter assembly; the male pin of the catheter assembly is used to transmit the signal of the controller transmission component 6 to the catheter transmission component 9, and to transmit the rotational force of the PIM driving rotating shaft 5 to the rotating component 10; the catheter transmission component 9, that is, the catheter assembly PULSE / echo transmission line, is used to transmit the signal of the controller transmission component 6 The signal is transmitted to the ultrasonic transducer array element of the core component of the catheter; the rotating component 10, whose function is to transmit the rotational energy to the coaxial line 14 of the catheter drive shaft; the first magnetic component 11, whose function is to generate a repulsive force relative to the second magnetic component 12; the second magnetic component 12, whose function is to generate a repulsive force with the first magnetic component 11; the catheter connector housing 13, whose function is to install all the components in the catheter; the coaxial line 14 of the catheter component, whose function is to transmit the energy of the rotating component 10 of the catheter component and transmit the PULSE signal to the core component ultrasonic transducer of the catheter terminal The echo signal of the ultrasonic transducer array element is transmitted to the host through the catheter transmission component 9, the catheter assembly male pin, the PIM female jack 7 and the controller transmission component 6. After algorithm processing, the result is displayed on the device screen; the static-rotation gap 15, the NURD phenomenon is mainly caused by the friction between the rotation and the stillness at this gap; the groove 16, its function is to lock the catheter assembly after it is inserted into the PIM controller, so that the catheter assembly and the controller become a whole; the sheath 17, its function is to protect the coaxial line 14 of the catheter assembly drive shaft.

[0045] The IVUS probe provided in this embodiment has the following working process: the catheter connector housing 13 is inserted into the controller housing 4----the plug 8 buckle 3 opens--the plug 8 buckle 3 buckles the groove 16--the repulsive forces of the first magnetic component 11 and the second magnetic component 12 begin to interact with each other, making them close but not in contact----the machine starts working----the rotating part and the catheter connector housing 13 perform contactless floating relative rotation under the action of the first magnetic component 11 and the second magnetic component 12----the work is completed---stop the machine----press the release button 1---the plug 8 buckle 3 opens---pull out the catheter connector housing 13 and the rotating part--completed.

[0046] In addition to the above-mentioned IVUS probe, the present application also provides an ultrasonic diagnostic device including the above-mentioned IVUS probe. For the structure of other parts of the ultrasonic diagnostic device, please refer to the prior art and will not be described in detail herein.

[0047] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0048] The IVUS probe provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An IVUS probe, characterized in that: The invention comprises a rotating component (10) which can be electrically connected to a controller and a catheter joint shell (13) which is sleeved on the outside of the rotating component (10); a first magnetic component (11) is mounted on the rotating component (10), and a second magnetic component (12) is mounted on the catheter joint shell (13); end surfaces (19) of the first magnetic component (11) and the second magnetic component (12) with the same magnetic poles face each other, so as to form a repulsive force and generate a static rotation gap (15) between the rotating component (10) and the catheter joint shell (13); when the probe is working, the rotating component (10) and the catheter joint shell (13) perform contactless suspension relative rotation under the action of the first magnetic component (11) and the second magnetic component (12).

2. The IVUS probe according to claim 1, characterized in that: The first magnetic component (11) and / or the second magnetic component (12) is a magnet or an electromagnetic component.

3. The IVUS probe according to claim 1, characterized in that: The first magnetic component (11) and / or the second magnetic component (12) are in the shape of a disk, and are provided with a center hole (18) in the middle for the signal line and / or the transmission shaft to pass through.

4. The IVUS probe according to claim 1, characterized in that: The catheter joint housing (13) also includes a locking portion that can be locked by a locking assembly of the controller.

5. The IVUS probe according to claim 1, characterized in that: The rotating component (10) is provided with a socket (7) or a pin which can be electrically connected to the rotating shaft (5) of the controller.

6. The IVUS probe according to claim 5, characterized in that: The open end of the catheter joint housing (13) is also provided with a limiting component (20). When the catheter joint housing (13) is separated from the controller, the limiting component (20) can abut against the rotating component (10) to separate the rotating component (10) from the rotating shaft (5) of the controller.

7. The IVUS probe according to any one of claims 1 to 6, characterized in that: The rotating component (10) comprises a rotating housing, the first magnetic component (11) being arranged at one end of the rotating housing away from the controller; the second magnetic component (12) being arranged at one end of the pipe joint housing (13) away from the controller; the static rotation gap (15) being located between the rotating housing and the second magnetic component (12); Alternatively, the rotating component (10) comprises a rotating housing, the first magnetic component (11) is arranged at an end of the rotating housing outside the rotating housing away from the controller; the second magnetic component (12) is installed at an end of the interior of the catheter joint housing (13) away from the controller; and the static rotation gap (15) is located between the first magnetic component (11) and the second magnetic component (12).

8. An ultrasonic diagnostic device, comprising a controller and an IVUS probe, characterized in that: The IVUS probe is the IVUS probe described in any one of claims 1 to 7.

Images