CN219183827U - Ultrasonic catheter assembly and ultrasonic catheter - Google Patents

Abstract

The utility model relates to an ultrasonic catheter assembly and an ultrasonic catheter, comprising an assembly base, a transducer and two five-dimensional first positioning sensors, wherein the assembly base is provided with a first installation part and a second installation part, the transducer is fixed with the assembly base, the two five-dimensional first positioning sensors are respectively assembled on the first installation part and the second installation part, and the two five-dimensional first positioning sensors are arranged in a non-parallel way. In the ultrasonic catheter assembly and the ultrasonic catheter, the six-dimensional first positioning sensor can be synthesized by using the two five-dimensional first positioning sensors through programming and calculation, free rotation of six degrees of freedom in space is realized, the bending control direction of the bendable section of the ultrasonic catheter is prejudged, the ultrasonic catheter further has the function of the six-dimensional first positioning sensor, and the size of the two five-dimensional first positioning sensors is far smaller than that of one six-dimensional first positioning sensor, so that the size of the ultrasonic catheter can be excessively reduced, and the ultrasonic catheter is beneficial to operation of surgery.

Description

Ultrasonic catheter assembly and ultrasonic catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic catheter assembly and an ultrasonic catheter.

Background

The three-dimensional imaging of the heart combines the two-dimensional sector ultrasonic images acquired by the intracardiac ultrasonic catheter with information such as the azimuth of the intracardiac ultrasonic catheter to construct a three-dimensional model diagram, which is helpful for visual research of specific parts of heart anatomy structures, reduces operation time, and even enables doctors with less experience to execute more complex operations.

The six-dimensional magnetic first positioning sensor is a common positioning component, can provide six-dimensional information such as X-axis position information, Y-axis position information, Z-axis position information, pitch angle, yaw angle and rotation angle, and can display direction information besides position information, so that an intracardiac ultrasonic catheter containing the six-dimensional magnetic first positioning sensor can not only construct an ultrasonic three-dimensional image according to the six-dimensional information, but also indicate the real-time position and the bending control direction of the intracardiac ultrasonic catheter, and the operation efficiency and safety are improved.

Because the transducer needs to be arranged at the far end of the intracardiac ultrasonic catheter, the far-end space is limited, and the existing six-dimensional magnetic first positioning sensor is large in size and can lead to the large volume of the intracardiac ultrasonic catheter after being arranged at the far end of the intracardiac ultrasonic catheter, so that the space utilization rate of the far end is reduced, and the difficulty of operation is increased.

Disclosure of Invention

Based on this, it is necessary to provide an ultrasound catheter assembly and an ultrasound catheter in view of the technical problems mentioned above.

The application provides an ultrasonic catheter assembly comprising:

an assembly base having a first mounting portion and a second mounting portion;

a transducer secured to the assembly base;

the two five-dimensional first positioning sensors are respectively assembled on the first installation part and the second installation part, and the two five-dimensional first positioning sensors are arranged in a non-parallel mode.

In one embodiment, the five-dimensional first positioning sensor has a reference line, and an included angle of 5 ° to 25 ° is formed between the two reference lines of the two five-dimensional first positioning sensors.

In one embodiment, the ultrasound catheter assembly comprises:

and the supporting component is connected with the assembly base and the transducer and is positioned on the same side of the assembly base and the transducer so as to support the assembly base and the transducer.

In one embodiment, the ultrasound catheter assembly comprises:

a first conductive member electrically connected with the transducer;

the two second conductive parts are respectively and electrically connected with the two five-dimensional first positioning sensors, at least one part of the first conductive parts is arranged on one side of the supporting part, and the supporting part is indirectly supported and connected with the assembly base and the transducer through at least one part of the first conductive parts; at least a part of the two second conductive parts are respectively arranged on the first conductive parts.

In one embodiment, the assembly base has a third mounting portion on which the transducer is mounted.

In one embodiment, the first mounting portion is a first groove or a first through hole formed on the assembly base; and/or the number of the groups of groups,

the second mounting part is a second groove or a second through hole formed on the assembly base; and/or the number of the groups of groups,

the third installation part is a third groove formed in the assembly base, and a lead channel communicated with the third groove is formed in the assembly base.

In one embodiment, the assembly base includes a first section and a second section, wherein:

the first mounting portion and the second mounting portion are located in the first section, and the third mounting portion is located in the second section;

alternatively, the first mounting portion is located in the first section, and the second and third mounting portions are located in the second section.

In one embodiment, the first mounting portion and the second mounting portion are on the same side of the assembly base; alternatively, the first mounting portion and the second mounting portion are located on different sides of the assembly base.

In one embodiment, at least a part of the first section is of a cylindrical structure, and the first section is provided with a stay wire channel; the second section has at least a portion of a cylindrical structure, and the first section and the second section have the same radius.

The present application provides an ultrasound catheter, the ultrasound catheter comprising:

the device comprises a distal tube body, a control tube and a control tube, wherein the distal tube body comprises a main tube section and a control tube section, the proximal end of the main tube section is connected with the distal end of the control tube section, and the main tube section is provided with an installation inner cavity;

the ultrasonic catheter assembly, at least a portion of which fits within the mounting lumen of the main body tube segment.

In one embodiment, the ultrasound catheter comprises:

the catheter body is connected with the distal tube body, wherein two five-dimensional second positioning sensors are arranged on the catheter body, and the two five-dimensional second positioning sensors are arranged in a non-parallel mode.

In the ultrasonic catheter assembly and the ultrasonic catheter, the six-dimensional first positioning sensor is synthesized by using the two five-dimensional first positioning sensors, so that free rotation of six degrees of freedom in space is realized, the bending control direction of the bendable section of the ultrasonic catheter is prejudged, the ultrasonic catheter further has the function of the six-dimensional first positioning sensor, and the sizes of the two five-dimensional first positioning sensors are far smaller than those of the six-dimensional first positioning sensor, so that the volume of the ultrasonic catheter can be reduced, the space utilization rate of the far end is improved, and operation by operators is also facilitated.

Drawings

FIG. 1 is a schematic view of a first perspective assembly structure of a transducer and a first position sensor provided in one embodiment of the present application;

FIG. 2 is a schematic diagram of a second perspective assembly structure of a transducer and a first position sensor provided in one embodiment of the present application;

FIG. 3 is a schematic view of an assembled base according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of an assembled base according to another embodiment of the present disclosure;

FIG. 5 is a schematic view of an assembled base according to another embodiment of the present disclosure;

FIG. 6 is a schematic view of an ultrasound catheter according to one embodiment of the present application;

FIG. 7 is a cross-sectional view A-A of an ultrasound catheter provided in accordance with the embodiment of FIG. 6;

FIG. 8 is an exploded schematic view of an ultrasound catheter provided in one embodiment of the present application;

FIG. 9 is a schematic view of an ultrasound catheter according to another embodiment of the present application;

fig. 10 is an enlarged schematic view of a portion of an ultrasound catheter provided in accordance with the embodiment of fig. 9.

Reference numerals:

100. a transducer; 200. a first positioning sensor; 300. a second positioning sensor;

100a, a first conductive member;

200a, a second conductive member;

1000. a handle; 2000. a first knob; 3000. a second knob; 4000. a catheter body; 5000. a distal tube; 6000. assembling a base;

5000a, an installation cavity; 5100. a main body pipe section; 5200. a bend control pipe section;

6000a1, first section; 6000a2, second section; 6000b1, first mounting part; 6000b2, second mounting part; 6000b3, third mounting part; 6000c, datum line;

6100. a support member; 6200. a lead path; 6300. and a stay wire channel.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment. "proximal" and "distal" of the ultrasound catheter assembly and its various components merely refer to relative positional relationships, "proximal" referring to an end that is relatively close to the operator when the ultrasound catheter assembly is disposed on an ultrasound catheter and the ultrasound catheter is being operated during surgery, and "distal" referring to an end that is relatively far from the operator.

Referring to fig. 1 and 2, an embodiment of the present utility model provides an ultrasonic catheter assembly, where the ultrasonic catheter assembly includes an assembly base 6000, a transducer 100 and five-dimensional first positioning sensors 200, the assembly base 6000 has a first mounting portion 6000b1 and a second mounting portion 6000b2 (refer to fig. 3), the transducer 100 is connected to the assembly base 6000, the number of the five-dimensional first positioning sensors 200 is two, the two five-dimensional first positioning sensors 200 are respectively assembled on the first mounting portion 6000b1 and the second mounting portion 6000b2, and the two five-dimensional first positioning sensors 200 are arranged in a non-parallel manner, that is, the space between the two five-dimensional first positioning sensors 200 is provided with different space angles or space directions, the signals obtained by the two five-dimensional first positioning sensors 200 can synthesize positioning information obtained by the six-dimensional first positioning sensors through calculation, so that free rotation of six degrees of freedom in space is realized, the pre-determined ultrasonic catheter bending direction can be controlled by the six-dimensional first positioning sensors, and thus the two-dimensional first positioning sensors 200 can be positioned in a small size, and the volume of the ultrasonic catheter can be obviously reduced, and the volume of the ultrasonic catheter can be controlled by the first positioning sensors.

The two five-dimensional first positioning sensors 200 can construct six-dimensional first positioning sensors through non-parallel arrangement, so that the assembly base 6000 can be used to assemble the transducer 100 and the two five-dimensional first positioning sensors 200 and fix the relative position, the spatial angle, the spatial direction, or the like between the two five-dimensional first positioning sensors 200, in order to assemble the transducer 100 and the two five-dimensional first positioning sensors 200 together to constitute an ultrasonic catheter equivalent to that having the functions of the transducer 100 and the six-dimensional first positioning sensors, and thus, the assembly base 6000 suitable for assembling the transducer 100 and the five-dimensional first positioning sensors 200 can be designed based on the structural shapes of the transducer 100 and the five-dimensional first positioning sensors 200, and the assembly base 6000 is constructed with the first mounting portion 6000b1 and the second mounting portion 6000b2 capable of forming a matched mounting for the two five-dimensional first positioning sensors 200.

For example, the assembly base 6000 is a regular structure such as a plate shape, a column shape, or other irregular structures, and the first mounting portion 6000b1 and the second mounting portion 6000b2 adopt a structure such as a groove, a hole, or the like to accommodate and fix the transducer 100 and the five-dimensional first positioning sensor 200, which can be selected by a person skilled in the art according to requirements, and is not limited herein. The assembly base 6000 enables the positions of the transducer 100 and the five-dimensional first positioning sensor 200 to remain relatively fixed and facilitates assembly of the transducer 100 and the five-dimensional first positioning sensor 200. Moreover, the assembly base 6000 can also protect the five-dimensional first positioning sensor 200 from damage due to external force. The material of the assembly base 6000 may be stainless steel or polymer material with certain toughness.

Referring to fig. 1 and 2, in one embodiment, the five-dimensional first positioning sensor 200 has a reference line 6000c, where the reference line 6000c represents the orientation of each of the five-dimensional first positioning sensors 200, for example, when the five-dimensional first positioning sensor 200 is in a strip shape, the reference line 6000c is a central axis along the length direction of the five-dimensional first positioning sensor 200, the two five-dimensional first positioning sensors 200 may be disposed on the same plane, and an included angle of 5 ° to 25 ° is formed between the two reference lines 6000c of the two five-dimensional first positioning sensors 200, which means that an included angle of 5 ° to 25 ° is formed between the two five-dimensional first positioning sensors 200, specifically, an included angle of different angles of 5 °, 8 °, 10 °, 12 °, 15 °, 18 °, 20 °, 22 °, 25 ° and the like may be formed between the two five-dimensional first positioning sensors 200, which is not limited herein.

In one embodiment, the five-dimensional first positioning sensor 200 may be fixed to the end of the transducer 100, where the first positioning sensor 200 may be mounted on the assembly base 6000, and the proximal end of the transducer 100 is connected to the distal outer wall of the assembly base 6000, thereby enabling the end of the heat exchanger 100 to be indirectly connected to the first positioning sensor 200 through the connection to the assembly base 6000. Preferably, the ultrasound catheter assembly may further include a supporting member 6100, where the supporting member 6100 preferably has a flat plate structure, and the supporting member 6100 is connected to the assembly base 6000 and the transducer 100 and is located on the same side of the assembly base 6000 and the transducer 100 to support the assembly base 6000 and the transducer 100, so that when the end of the ultrasound catheter is stressed, the connecting position between the transducer 100 and the assembly base 6000 is prevented from being bent, and therefore, the supporting member 6100 can ensure that the transducer 100 and the assembly base 6000 form a stable connection, and stabilize the assembly structure therebetween. To improve imaging stability and reduce artifacts, a support member 6100 may be located at the bottom of the assembled base 6000 and transducer 100.

It will be appreciated that the ultrasound catheter assembly further comprises a first conductive member 100a electrically connected to the transducer 100, and two second conductive members 200a electrically connected to the two five-dimensional first positioning sensors 200, respectively, wherein at least a portion of the first conductive member 100a is disposed between the support member 6100 and the assembly base 6000 and the transducer 100 in order to fully utilize the distal space and prevent the first conductive member 100a and the second conductive member 200a from breaking when the ultrasound catheter end is forced; at least a part or all of the two second conductive members 200a are respectively disposed at the first conductive portions 100a. Preferably, the first conductive member 100a has the same width as the supporting member 6100, and is a flat flexible cable.

In other embodiments, referring to fig. 3 to 5, the transducer 100 may be mounted on the assembly base 6000 as the five-dimensional first positioning sensor 200, instead of being connected to only the outer wall of the assembly base 6000, the assembly base 6000 has a third mounting portion 6000b3, the transducer 100 is mounted on the third mounting portion 6000b3, and the third mounting portion 6000b3 is adapted to mount the transducer 100, so that the third mounting portion 6000b3 may be configured as a groove or hole adapted to the shape of the transducer 100. In one embodiment, the first mounting portion 6000b1 may be a first groove or a first through hole formed in the assembly base 6000 for accommodating and fixing one five-dimensional first positioning sensor 200, and the second mounting portion 6000b2 may be a second groove or a second through hole formed in the assembly base 6000 for accommodating and fixing another five-dimensional first positioning sensor 200. The third mounting portion 6000b3 may be formed as a third groove formed on the assembly base 6000, and the third groove is used to receive and fix the transducer 100.

Preferably, the assembly base 6000 is provided with a lead channel 6200 that is communicated with the third groove, the material of the transducer 100 is usually a piezoelectric material or a piezoelectric composite material, and each array element of the transducer 100 can be electrically connected with the first conductive component 100a, so that the lead channel 6200 is used for penetrating the first conductive component 100a, such as a flexible cable, a coaxial cable or a twisted pair, so that the first conductive component 100a is also integrated on the assembly base 6000, the assembly process is simplified, the first conductive component 100a can be further protected, and breakage of the end of the ultrasonic catheter when the end is stressed is avoided. The five-dimensional first positioning sensor 200 may be a magnetic first positioning sensor, preferably a coil made of a conductive material such as copper, and the coil has a magnetic core therein to improve the sensitivity of the signal, and in order to avoid the positioning signal from being infected, the second conductive member 200a of the five-dimensional first positioning sensor 200 is preferably a twisted pair, which can be set by those skilled in the art according to the needs and is not limited herein.

When both the transducer 100 and the five-dimensional first positioning sensor 200 are mounted on the assembly base 6000, as long as non-parallel arrangement between the two five-dimensional first positioning sensors 200 is ensured, the transducer 100 and the five-dimensional first positioning sensor 200 may be arranged on the assembly base 6000 in any manner, as shown in fig. 3, for example, in one embodiment, the assembly base 6000 includes a first section 6000a1 and a second section 6000a2, at this time, the first mounting portion 6000b1 and the second mounting portion 6000b2 may be located in the first section 6000a1, and the third mounting portion 6000b3 may be located in the second section 6000a2, so that the two five-dimensional first positioning sensors 200 are arranged on the first section 6000a1 of the assembly base 6000 and the transducer 100 is arranged on the second section 6000a2 of the assembly base 6000.

Also, if the assembly base 6000 is divided into different sides in the circumferential direction, the first mounting portion 6000b1 and the second mounting portion 6000b2 may be located at the same side or different sides of the assembly base 6000, for example, as shown in fig. 4, the first mounting portion 6000b1 may be located at the upper side of the assembly base 6000, and the second mounting portion 6000b2 may be located at the lower side of the assembly base 6000, which may be set as required by those skilled in the art.

Referring to fig. 4, in one embodiment, the first mounting portion 6000b1 is located at the first section 6000a1, the second mounting portion 6000b2 and the third mounting portion 6000b3 are located at the second section 6000a2, so that one of the five-dimensional first positioning sensors 200 is disposed at the first section 6000a1 of the assembly base 6000, and the transducer 100 and the other of the five-dimensional first positioning sensors 200 are simultaneously disposed at the second section 6000a2 of the assembly base 6000. Wherein, the two five-dimensional first positioning sensors 200 may be separated from two ends of the assembly base 6000 by the first mounting portion 6000b1 and the second mounting portion 6000b2, such as a proximal end and a distal end of the assembly base 6000, so that the two five-dimensional first positioning sensors 200 may occupy two end positions of the assembly base 6000, respectively, rather than each occupying the same end position of the assembly base 6000, which is beneficial to saving space.

Moreover, since the two five-dimensional first positioning sensors 200 may generate an eddy current effect due to the proximity of each other, which is not beneficial to accurate detection, the two five-dimensional first positioning sensors 200 are separated at two ends of the assembly base 6000, and can be further separated from each other in a limited space, the two five-dimensional first positioning sensors 200 are staggered in the radial and axial directions, so that the magnetic field interference between the two five-dimensional first positioning sensors 200 can be prevented, the precision of the two five-dimensional first positioning sensors 200 is improved, a larger included angle can be constructed by the two five-dimensional first positioning sensors 200, the precision is higher when the included angle between the two five-dimensional first positioning sensors 200 is closer to 90 °, and the distal end information of the ultrasonic catheter can be fed back more truly by the five-dimensional first positioning sensors 200 at the distal end, thereby improving the position precision of the five-dimensional first positioning sensors 200. The first mounting portion 6000b1 and the second mounting portion 6000b2 may be located at the same side or different sides of the assembly base 6000, for example, as shown in fig. 4, the first mounting portion 6000b1 may be located at an upper side of the assembly base 6000, and the second mounting portion 6000b2 may be located at a lower side of the assembly base 6000, which may be set by a person skilled in the art according to the need.

Referring to fig. 5, in one embodiment, at least a portion of the first section 6000a1 is in a cylindrical structure, at this time, the first mounting portion 6000b1 is also configured as a first through hole for placing the five-dimensional first positioning sensor 200, the number of the first section 6000a1 is four, and the four stay channels 6300 may be equally distributed in the circumferential direction, in this embodiment, since the stay channels 6300 are also integrated onto the assembly base 6000, the stay channels 6300 are used for threading stay wires, and no additional component that easily affects flexibility of the ultrasound catheter is provided to thread through the stay wires, so that the length of the main body tube segment 5100 (as shown in fig. 6 and 7) with higher hardness in the ultrasound catheter can be shortened, and the manipulation of the ultrasound catheter is more flexible.

The second section 6000a2 may have a similar structure to the first section 6000a1 to enable structural matching of the second section 6000a2 and the first section 6000a1, for example, the second section 6000a2 may also have a cylindrical structure, or the second section 6000a2 may have only at least a part of a cylindrical structure, such as the semi-cylindrical structure shown in fig. 5, whereas the first section 6000a1 and the second section 6000a2 may have the same radius regardless of whether the second section 6000a2 has a complete cylindrical structure or at least a part of a cylindrical structure, thereby forming an outer profile matching in the axial direction, which may be set by a person skilled in the art as required and is not limited thereto.

Referring to fig. 6 and 7, an embodiment of the present application further provides an ultrasound catheter, where the ultrasound catheter may further include a handle 1000, a first knob 2000, a second knob 3000, a catheter body 4000, and a distal tube 5000, where the distal tube 5000 includes a main tube segment 5100 with a higher stiffness and a bend-controlling tube segment 5200 with a lower stiffness, a proximal end of the main tube segment 5100 is connected with a distal end of the bend-controlling tube segment 5200, the main tube segment 5100 is configured to accommodate the transducer 100, the first positioning sensor 200, and the like, and the bend-controlling tube segment 5200 may be curved due to its lower stiffness to accommodate flexible cables and the like. The first knob 2000 and the second knob 3000 are disposed on the handle 1000, and can be used for controlling 2 pull wires in opposite directions, that is, the proximal ends of the 2 pull wires are connected with the first knob 2000, the distal ends are connected with the control bend section 5200, and the proximal ends of the 2 pull wires are connected with the second knob 2000, and the distal ends are connected with the control bend section 5200, so that the control bend section 5200 is bendable in 4 directions.

Referring to fig. 6-8, the main body tube segment 5100 has a mounting lumen 5000a, at least a portion of the ultrasound catheter assembly fits within the mounting lumen 5000a of the distal tube body 5000, and another portion is disposed within the bend tube segment 5200 and extends into the handle of the ultrasound catheter, preferably at least a portion includes the transducer 100, the first position sensor 200, the assembly base 6000, the support member 6100 (if any), a portion of the first conductive member 100a and a portion of the second conductive member 200a, and another portion includes another portion of the first conductive member 100a and a remainder of the second conductive member 200 a. The main body tube 5100 is made of acoustic impedance material matching with heart tissue, for example, pebax, silicone rubber, etc. the main body tube 5100 is made of materials such as Pebax, silicone rubber, etc.

Referring to fig. 9 to 10, the distal end of the catheter body 4000 is connected to the proximal end of the distal tube 5000, the proximal end of the catheter body 4000 is connected to the handle 1000, two second positioning sensors 300 may be disposed on the catheter body 4000 near the distal tube 5000, and similarly, two five-dimensional second positioning sensors 300 may be configured to be six-dimensional second positioning sensors by non-parallel arrangement, so that in addition to the synthesized six-dimensional first positioning sensor disposed on the distal tube 5000, one or more additional synthesized six-dimensional second positioning sensors are added to the catheter body 4000 in order to draw a curved shape of the ultrasound catheter on three-dimensional software in combination with the positional information of the synthesized six-dimensional first positioning sensor disposed on the distal tube 5000.

The ultrasound catheter of the embodiment of the present application may be an intracardiac ultrasound catheter, but the present application is not limited to an intracardiac ultrasound catheter, and may also be an interventional catheter applied to other areas than the heart, which is not limited in this application.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (11)

1. An ultrasound catheter assembly, the ultrasound catheter assembly comprising:

an assembly base having a first mounting portion and a second mounting portion;

a transducer secured to the assembly base;

the two five-dimensional first positioning sensors are respectively assembled on the first installation part and the second installation part, and the two five-dimensional first positioning sensors are arranged in a non-parallel mode.

2. The ultrasonic catheter assembly of claim 1, wherein the five-dimensional first positioning sensor has fiducial lines, and wherein an included angle of 5 ° to 25 ° is provided between two of the fiducial lines of two of the five-dimensional first positioning sensors.

3. The ultrasonic catheter assembly of claim 1, wherein the ultrasonic catheter assembly comprises:

and the supporting component is connected with the assembly base and the transducer and is positioned on the same side of the assembly base and the transducer so as to support the assembly base and the transducer.

4. The ultrasonic catheter assembly of claim 3, wherein the ultrasonic catheter assembly comprises:

a first conductive member electrically connected with the transducer;

the two second conductive parts are respectively and electrically connected with the two five-dimensional first positioning sensors, at least one part of the first conductive parts is arranged on one side of the supporting part, and the supporting part is indirectly supported and connected with the assembly base and the transducer through at least one part of the first conductive parts; at least a part of the two second conductive parts are respectively arranged on the first conductive parts.

5. The ultrasonic catheter assembly of claim 1, wherein the assembly base has a third mounting portion, the transducer being mounted on the third mounting portion.

6. The ultrasonic catheter assembly of claim 5, wherein the first mounting portion is a first groove or a first through hole open on the assembly base; and/or the number of the groups of groups,

the second mounting part is a second groove or a second through hole formed on the assembly base; and/or the number of the groups of groups,

the third installation part is a third groove formed in the assembly base, and a lead channel communicated with the third groove is formed in the assembly base.

7. The ultrasonic catheter assembly of claim 5, wherein the assembly base comprises a first section and a second section, wherein:

the first mounting portion and the second mounting portion are located in the first section, and the third mounting portion is located in the second section;

alternatively, the first mounting portion is located in the first section, and the second and third mounting portions are located in the second section.

8. The ultrasonic catheter assembly of claim 7, wherein the first and second mounting portions are on the same side of the assembly base; alternatively, the first mounting portion and the second mounting portion are located on different sides of the assembly base.

9. The ultrasonic catheter assembly of claim 7, wherein at least a portion of the first section is of cylindrical configuration, the first section defining a pull wire channel; the second section has at least a portion of a cylindrical structure, and the first section and the second section have the same radius.

10. An ultrasound catheter, the ultrasound catheter comprising:

the device comprises a distal tube body, a control tube and a control tube, wherein the distal tube body comprises a main tube section and a control tube section, the proximal end of the main tube section is connected with the distal end of the control tube section, and the main tube section is provided with an installation inner cavity;

the ultrasonic catheter assembly of any of claims 1-9, at least a portion of which fits within the mounting lumen of the main body tube section.

11. The ultrasound catheter of claim 10, wherein the ultrasound catheter comprises:

the catheter body is connected with the distal tube body, wherein two five-dimensional second positioning sensors are arranged on the catheter body, and the two five-dimensional second positioning sensors are arranged in a non-parallel mode.

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