CN110584715A - Ultrasonic diagnosis equipment and IVUS probe thereof - Google Patents

Abstract

The application discloses an ultrasonic diagnostic device and its IVUS probe, which includes a rotating part that can be electrically connected to a controller and a catheter connector shell sleeved outside the rotating part. A first magnetic component is installed on the rotating part. A second magnetic component is installed, and the first magnetic component is opposite to the end face with the same magnetic pole of the second magnetic component, so as to form a repulsive force to generate a static rotation gap between the rotating component and the conduit connector shell. For the IVUS probe provided by this application, after the controller and the probe are assembled, due to the repulsive force generated between the first magnetic part and the second magnetic part, the rotating part cannot be in contact with the casing of the catheter joint, avoiding the static rotation gap The problem of collision/friction, at the same time, the repulsive force between the first magnetic part and the second magnetic part also makes the rotating part and the rotating shaft of the controller not easy to loosen, avoiding the occurrence of NURD, effectively prolonging the use time of the probe and reducing PIM consumption, effectively reducing costs.

Description

A kind of ultrasonic diagnostic equipment and its IVUS probe

technical field

The present application relates to the field of intravascular ultrasonic echo imaging systems, in particular to an IVUS probe. In addition, the present application also relates to an ultrasonic diagnostic device including the above-mentioned IVUS probe.

Background technique

In the intravascular ultrasound echo imaging system (IVUS) technology, there is a very important index, which is called NURD in the industry, that is, Non-Uniform Rotation Distortion, nonlinear rotation image distortion, or uneven rotation deformation, etc., which is A kind of distortion of the quantitative parameters of proportional imbalance obtained by comparing the ultrasonic echo imaging with the real graphics. This parameter determines whether the doctor's judgment on the size and shape of the lesion is accurate, and plays an important role in the selection of the treatment plan to be adopted in the future. Reference role.

In the design of IVUS, at the joint between the catheter structure and the electrical system, due to frequent insertion and insertion and individual errors in different body catheters, there will be misalignment of the axis. The intravascular ultrasonic echo imaging equipment is placed on the human body. There are strict requirements on weight and weight. In order to reduce the volume, no bearings and bushings can be installed 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 catheter The connector inside the assembly fixes the rotating parts and rotates with the PIM rotating shaft. In order to prevent cross-infection, the catheter must be replaced every patient, and the joint is just the place where the operation is the most frequent and the life span is the most fragile. After the electrical connector of the conduit part is plugged in, the precise structural design can ensure the clearance of the circumference, but it cannot guarantee the clearance at the outlet end of the conduit, that is, the gap between the rotating part and the stationary part at the end far away from the PIM rotation axis. When working, the rotating part The static and stationary parts will make irregular friction actions at the static-rotation gap of the catheter assembly, and most of the NURD phenomena are caused by this. Among them, PIM is Patient Interface Module, which means patient interface module; CCU is Catheter Control Unit, which means catheter control unit module.

The commonly used probes in the prior art, by increasing the insertion length of the connector and increasing the number of pins and jacks, ensure that the image of the product does not appear, or serious NURD does not appear. However, although the solutions in the prior art effectively prolong the use time without NURD, as the use time prolongs, or when more and more patients are examined in the hospital, the occlusal force of the connector will still weaken, and NURD will appear. At this time, it is still necessary to replace the expensive PIM rotating head, which has become one of the reasons for the high cost of cardiovascular ultrasound.

Therefore, how to improve the use stability of the IVUS probe and reduce image distortion is a technical problem to be solved by those skilled in the art.

Contents of the invention

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

In order to achieve the above object, the application provides the following technical solutions:

An IVUS probe includes a rotating part that can be electrically connected to a controller and a catheter connector shell sleeved outside the rotating part, a first magnetic component is installed on the rotating part, and a second magnetic component is installed on the catheter connector housing Two magnetic components, the first magnetic component and the second magnetic component have the same end faces facing each other, so as to generate a static rotation gap between the rotating component and the conduit joint shell after forming a repulsive force.

Preferably, the first magnetic component and/or the second magnetic component are magnets or electromagnetic components.

Preferably, the first magnetic component and/or the second magnetic component is disc-shaped, and a central hole is provided in the middle for the signal line and/or the transmission shaft to pass through.

Preferably, the conduit connector housing further includes a locking portion that can be locked by the locking component of the controller.

Preferably, the rotating part is provided with sockets or pins that can be electrically connected with the rotating shaft of the controller.

Preferably, the open end of the conduit joint housing is further provided with a limiting part, and when the conduit joint housing is separated from the controller, the limiting part can abut against the rotating part, so that the rotation Parts are separated from the axis of rotation of the controller.

Preferably, the rotating part includes a rotating housing, and the first magnetic part is disposed inside the rotating housing at an end away from the controller; the second magnetic part is disposed inside the conduit joint housing away from the end of the controller. One end of the controller; the static rotation gap is located between the rotating housing and the second magnetic component;

Alternatively, the rotating part includes a rotating housing, and the first magnetic part is arranged on the outside of the rotating housing at one end away from the controller; the second magnetic part is installed inside the conduit connector housing away from the One end of the device; the static rotation gap is located between the first magnetic component and the second magnetic component.

The present application also provides an ultrasonic diagnostic device, including the IVUS probe described in any one of the above.

The IVUS probe provided by the present application includes a rotating part that can be electrically connected to the controller and a catheter joint shell sleeved outside the rotating part, a first magnetic component is installed on the rotating part, and the catheter joint shell is A second magnetic component is installed, and the first magnetic component is opposite to the end face with the same magnetic pole of the second magnetic component, so as to generate a static rotation gap between the rotating component and the conduit joint shell after forming a repulsive force. In the IVUS probe provided by the present application, after the controller and the probe are assembled, due to the repulsive force generated between the first magnetic part and the second magnetic part, there is a gap between the rotating part and the catheter connector shell. Inaccessible, avoiding the collision/friction problem between static and rotating gaps, and the repulsive force between the first magnetic part and the second magnetic part also makes it difficult for the rotating part to loosen from the rotating shaft of the controller, avoiding the occurrence of NURD , effectively prolong the use time of the probe, reduce the consumption of PIM, and effectively reduce the cost.

The ultrasonic diagnostic equipment provided in the present application is equipped with the above-mentioned IVUS probe. Since the IVUS probe has the above-mentioned technical effects, the ultrasonic diagnostic equipment equipped with the IVUS probe should also have corresponding technical effects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic cross-sectional structure diagram of a specific embodiment of an IVUS probe provided by the present application;

Fig. 2 is the front view of a specific embodiment of the magnetic component in the IVUS probe provided by the present application;

Fig. 3 is the right view of a specific embodiment of the magnetic component in the IVUS probe provided by the present application;

FIG. 4 is a schematic cross-sectional structural view of another embodiment of the IVUS probe provided by the present application;

Among them: trip button (1), locking fulcrum (2), plug buckle (3), controller shell (4), rotating shaft (5), controller transmission part (6), jack (7), Plug (8), catheter transmission part (9), rotating part (10), first magnetic part (11), second magnetic part (12), catheter joint housing (13), coaxial line (14), static rotation The gap (15), the groove (16), the central hole (18) of the sheath (17), the end face (19), and the stopper (20).

Detailed ways

The core of the present application is to provide an IVUS probe, which can significantly reduce the occurrence of NURD, has a long service life, and is low in cost. Another core of the present application is to provide an ultrasonic diagnostic device including the above-mentioned IVUS probe.

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Please refer to Figures 1 to 4, Figure 1 is a schematic cross-sectional structure diagram of a specific embodiment of the IVUS probe provided by the present application; Figure 2 is a front view of a specific embodiment of the magnetic component in the IVUS probe provided by the present application ; FIG. 3 is a right view of a specific embodiment of the magnetic component in the IVUS probe provided by the present application; FIG. 4 is a schematic cross-sectional structure diagram of another specific embodiment of the IVUS probe provided by the present application.

In this embodiment, the IVUS probe includes a rotating part 10 , a catheter adapter housing 13 and a first magnetic part 11 and a second magnetic part 12 .

Wherein, the rotating part 10 can be electrically connected with the controller, and the conduit connector shell 13 is sheathed outside the rotating part 10. When the probe is working, the rotating part 10 drives the coaxial line 14 to rotate, and the conduit connector shell 13 is stationary.

Further, a first magnetic component 11 is installed on the rotating component 10, a second magnetic component 12 is installed on the conduit joint housing 13, and the first magnetic component 11 is opposite to the end face 19 with the same magnetic pole of the second magnetic component 12 to form a repulsive force. A static-rotation gap 15 is generated between the rotating part 10 and the conduit connector shell 13 .

In the IVUS probe provided by this application, after the controller and the probe are assembled, due to the repulsive force generated between the first magnetic part 11 and the second magnetic part 12, the rotating part 10 and the catheter joint shell 13 cannot be in contact, maintaining Due to the approaching but non-contact state between the first magnetic component 11 and the second magnetic component 12, a certain static rotation gap 15 is maintained between the rotating component 10 and the catheter joint shell 13, so as to avoid the static rotation gap 15 from colliding/ At the same time, the repulsive force between the first magnetic part 11 and the second magnetic part 12 also makes the rotating part 10 and the rotating shaft 5 of the controller not easy to loosen, avoiding the occurrence of NURD, and effectively prolonging the use time of the probe. Reduce the consumption of PIM and effectively reduce the cost.

On the basis of the above-mentioned embodiments, the first magnetic component 11 and/or the second magnetic component 12 are magnets or electromagnetic components. Specifically, the magnets or electromagnetic components should maintain the same end position corresponding to the same magnetic pole.

On the basis of the above-mentioned embodiments, the first magnetic component 11 and/or the second magnetic component 12 are disc-shaped, and a central hole 18 is provided in the middle for the signal line and/or transmission shaft to pass through. The first magnetic component 11 The end surface 19 of the second magnetic part 12 is attached to the inner wall or outer wall of the corresponding rotating part 10 or the conduit joint housing 13, and the disc-shaped first magnetic part 11 and/or the second magnetic part 12 can match the existing A cylindrical rotating part 10 and a cylindrical conduit joint housing 13 .

Preferably, since the rotating part 10 will rotate during operation, in order to maintain stability, the first magnetic part 11 may preferably be in the shape of a disk, and the first magnetic part 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 of the same shape.

On the basis of the above-mentioned embodiments, the conduit connector housing 13 further includes a locking portion that can be locked by a locking component of the controller. Specifically, the locking portion is preferably a groove 16 or a locking groove. Specifically, the locking assembly includes a trip button 1, a locking fulcrum 2 and a plug 8 buckle 3, the plug 8 buckle 3 can be engaged with the locking part, and the trip button 1 can drive the plug 8 buckle 3 relative to the lock. The fulcrum 2 swings to release the locked state.

Specifically, the trip button 1 is connected with the plug 8 buckle 3, and the direction of the force is changed through the locking fulcrum 2, so that when it is pressed down, the plug 8 buckle 3 moves upwards, and the connection with the conduit connector shell 13 Groove 16 loosens, realizes the separation of the two.

On the basis of the above-mentioned embodiments, the rotating part 10 is provided with a socket 7 or pin that can be electrically connected to the rotating shaft 5 of the controller, and the rotating part 10 and the rotating shaft 5 of the controller are connected through the socket 7 or pin. For the pin connection, preferably, the rotating part 10 is provided with a pin, and the rotating shaft 5 of the controller is provided with a socket 7 .

On the basis of the above-mentioned embodiments, the opening end of the conduit connector housing 13 is also provided with a limiting part 20. When the conduit connector housing 13 is separated from the controller, the limiting part 20 can abut against the rotating part 10, so that the rotating part 10 is separated from the axis of rotation 5 of the controller.

Specifically, the limiting component 20 is ring-shaped, and is detachably engaged with the inner peripheral portion of the conduit joint housing 13 , as shown in FIG. 3 . When the trip button 1 is pressed, the conduit joint housing 13 is directly removed, and under the action of the limiting member 20, the opposing sides of the limiting member 20 and the rotating member 10 abut against each other, so that the rotating member 10 cannot be released from the conduit. The joint housing 13 is disengaged, and is taken off simultaneously with the rotating part 10 under the force of the limiting part 20, realizing the separation of the IVUS probe from the controller.

On the basis of the above-mentioned embodiments, the rotating part 10 includes a rotating housing, and the first magnetic part 11 is arranged inside the rotating housing at an end away from the controller; the second magnetic part 12 is arranged at an end inside the conduit connector housing 13 away from the controller. Static rotation gap 15 is located between the rotating shell and the second magnetic part 12; so set, the first magnetic part 11 is arranged in the inside of the rotating shell, and the second magnetic part 12 is arranged in the inside of the conduit joint shell 13, that is, the two Both are arranged inside the corresponding housing, which can facilitate installation and reduce the possibility of falling off.

Alternatively, the rotating part 10 includes a rotating housing, the first magnetic part 11 is arranged on the outside of the rotating housing at one end away from the controller; the second magnetic part 12 is installed inside the conduit joint housing 13 at one end away from the controller; the static rotation gap 15 is located at the first Between a magnetic part 11 and the second magnetic part 12; set in this way, the first magnetic part 11 is arranged on the outside of the rotating shell, and the second magnetic part 12 is arranged inside the conduit connector shell 13, so that the first magnetic part 11 It is opposite to the second magnetic component 12, the distance is relatively short, the magnetic force is relatively large, and the effect is good.

Of course, the first magnetic component 11 can also be arranged outside the rotating housing, and the second magnetic component 12 can be arranged inside the catheter connector housing 13. The specific arrangement method can be selected according to actual needs, and is not limited to this embodiment. The scheme given in the example.

Preferably, in order to improve stability, the first magnetic component 11 is preferably fixed on the rotating housing, and the second magnetic component 12 is fixed on the conduit connector housing 13 .

In a specific embodiment, the IVUS probe includes: a trip button 1, whose function is to open the buckle 3 of the plug 8, so that the stuck catheter joint shell 13 can be pulled out; a locking fulcrum 2, whose function is to change The direction of the force; the plug 8 buckle 3 is inserted into the conduit connector shell 13 before use, and the plug 8 buckle 3 firmly clamps the static part of the catheter; the rotating shaft 55 is used to pass the rotational force of the motor through the connector The female jack 7 and the male pin of the connector catheter assembly are transmitted to the rotating part 10; the controller transmission part 6, that is, the ultrasonic PULSE/echo transmission line, is used to transmit the PUSE signal generated by the host to the same time of the catheter assembly. The axis 14 is finally transmitted to the core part of the catheter, the ultrasonic transducer array element; the socket 7, has an elastic contact piece inside, and its function is to bite the pin of the male head of the catheter assembly and transmit electrical signals together with the catheter assembly; the male head of the catheter assembly Pin, its role is to transmit the signal of the controller transmission part 6 to the catheter transmission part 9, and transmit the rotational force of the PIM-driven rotating shaft 5 to the rotation part 10; the catheter transmission part 9, that is, the catheter assembly PULSE/echo transmission line , its function is to transmit the signal of the controller transmission part 6 to the ultrasonic transducer array element of the core part of the catheter; the rotating part 10, its function is to transmit the rotational energy to the coaxial line 14 of the catheter drive shaft; the first magnetic part 11, Its effect is to produce a repelling force relative to the second magnetic part 12; the second magnetic part 12, its effect is to generate a repulsive force with the first magnetic part 11; the conduit joint shell 13, its effect is to install all the Components; the coaxial line 14 of the catheter assembly, its function is to transmit the energy of the rotating part 10 of the catheter assembly, and transmit the PULSE signal to the core part of the catheter terminal, the ultrasonic transducer array element, and simultaneously transfer the return of the ultrasonic transducer array element The wave signal is transmitted to the host through the catheter transmission part 9, the male pin of the catheter assembly, the PIM female jack 7 and the controller transmission part 6. After algorithm processing, the result is displayed on the device screen; static rotation gap 15, NURD The phenomenon is mainly caused by the friction between the rotation and the stillness at the gap; the groove 16 is used to lock the catheter assembly after it is inserted into the PIM controller, so that the catheter assembly and the controller become an integral body; the sheath 17, its role is to protect the catheter assembly drive shaft coaxial line 14.

The working process of the IVUS probe provided in this embodiment is as follows: the catheter joint shell 13 is inserted into the controller shell 4----the plug 8 buckle 3 opens--the plug 8 buckle 3 buckles the groove 16-the first magnetic The repulsive force of the part 11 and the second magnetic part 12 starts to interact, making them approach without contact - the machine starts to work - the rotating part and the conduit joint housing 13 are in the first magnetic part 11 and the second magnetic part Under the action of 12, do non-contact suspension relative rotation----work is completed---stop----press the trip button 1---plug 8 buckle 3 open---pull out the conduit connector shell 13 And the turning part -- done.

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, which will not be repeated here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The IVUS probe provided by this application has been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application, and the descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application. It should be pointed out that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims (8)

1. The IVUS probe is characterized by comprising a rotating part (10) electrically connected with a controller and a catheter connector shell (13) sleeved outside the rotating part (10), wherein a first magnetic part (11) is installed on the rotating part (10), a second magnetic part (12) is installed on the catheter connector shell (13), and the first magnetic part (11) is opposite to the end face (19) with the same magnetic pole as the second magnetic part (12) so as to form a static rotating gap (15) between the rotating part (10) and the catheter connector shell (13) after a repulsive force is formed.

2. The IVUS probe of claim 1, wherein the first magnetic component (11) and/or the second magnetic component (12) is a magnet or an electromagnetic component.

3. An IVUS probe according to claim 1, characterized in that the first magnetic part (11) and/or the second magnetic part (12) is disc-shaped and provided with a central hole (18) in the middle for the signal wire and/or the drive shaft to pass through.

4. The IVUS probe of claim 1, wherein the catheter hub housing (13) further comprises a locking portion thereon for being lockable by a locking assembly of the controller.

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

6. An IVUS probe according to claim 5, characterized in that the open end of the catheter adapter housing (13) is further provided with a stop member (20), the stop member (20) being abuttable with the turning member (10) to disengage the turning member (10) from the rotational axis (5) of the control when the catheter adapter housing (13) is disengaged from the control.

7. An IVUS probe according to any of claims 1 to 6, characterized in that the rotating part (10) comprises a rotating housing, the first magnetic part (11) being arranged inside the rotating housing at the end remote from the control; the second magnetic component (12) is arranged at one end of the interior of the catheter adapter shell (13) far away from the controller; the static rotation gap (15) is located between the rotating housing and the second magnetic part (12);

or the rotating part (10) comprises a rotating shell, and the first magnetic part (11) is arranged at one end, far away from the controller, outside the rotating shell; the second magnetic component (12) is arranged at one end of the interior of the catheter connector shell (13) far away from the controller; the static rotation gap (15) is located between the first magnetic part (11) and the second magnetic part (12).

8. An ultrasonic diagnostic apparatus comprising a controller and an IVUS probe, wherein the IVUS probe is the IVUS probe of any one of claims 1 to 7.