KR101863420B1

KR101863420B1 - The housing for intravascular ultrasound transducer

Info

Publication number: KR101863420B1
Application number: KR1020150170814A
Authority: KR
Inventors: 정종섭; 김성민; 성진호
Original assignee: 동국대학교 산학협력단
Priority date: 2015-12-02
Filing date: 2015-12-02
Publication date: 2018-05-30
Also published as: WO2017095184A1; KR20170064839A

Abstract

As an example of the present invention, a housing for an intravascular ultrasound transducer may be provided. The housing includes an inner housing and an outer housing, and at least one of an electrode pattern and a groove for a wire is used for connecting the electrode to the ultrasonic transducer to be housed in the inner housing, and the rear end of the inner housing is rotated And can be connected to the rotating shaft.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a housing for an ultrasound transducer,

The present invention relates to a housing for an intravascular ultrasound (IVUS) transducer inserted into a blood vessel, and more particularly, to an IVUS transducer for diagnosing or treating a blood vessel inserted into a blood vessel, To a housing using grooves for a thin film pattern and a wire using a conductive material for electrode connection in a housing itself.

Intravascular ultrasound (IVUS) technique is used for accurate diagnosis and treatment of cardiovascular disease. The IVUS technique is an IVUS transducer directly inserted into the blood vessel to image the inner wall of the blood vessel. By visualizing the vascular endothelium and the deep part of the inner wall in real time, accurate diagnosis can be made. In addition, Is used to judge the suitability of

In general, the IVUS translator can be divided into a single device converter and an array converter, and the single device IVUS converter has the advantage of keeping the size smaller than the array IVUS translator by using one device. The single-element IVUS transducer imaged the vessel wall by rotating 360 degrees over 2000 rpm.

Because the IVUS transducer must pass through narrowed blood vessels for disease monitoring to reduce the size of the IVUS transducer, the narrower blood vessels may pass more easily if the IVUS transducer is reduced in size, Aliasing phenomenon can be reduced. Therefore, small-sized single-element IVUS converters are preferred.

1. Japanese Published Patent Publication No. 2015-515918 (June 5, 2015) 2. Japanese Patent Publication No. 3206915 (September 10, 2001)

The present invention relates to a housing for an intravascular ultrasound (IVUS) transducer that can be used for the diagnosis and treatment of cardiovascular diseases and a method for manufacturing the same. In order to simplify the manufacturing process of the IVUS housing and to connect the IVUS stack and the housing, the electrode connection pattern and the groove in the housing itself To increase the convenience of the IVUS converter manufacturing process.

As an embodiment of the present invention, a housing for an intravascular ultrasound transducer may be provided. According to an embodiment of the present invention, a housing for an endovascular ultrasound transducer includes an inner housing and an outer housing, and at least one of an electrode pattern and a groove for a wire is connected to an inner housing for connecting an electrode for driving an ultrasonic transducer And the rear end of the inner housing may be connected to the rotating shaft for rotation.

The inner housing may include an inclined surface for allowing the proceeding direction of the ultrasonic beam by the ultrasonic transducer to have a predetermined angle.

The inner housing may have a structure for only connecting the electrode for driving the ultrasonic transducer, using only the electrode pattern, only the groove for the wire, or the groove for the electrode pattern and the wire to be used simultaneously.

The signal line for the ultrasonic transducer can be connected to the sound-absorbing layer of the ultrasonic transducer of the ultrasonic transducer, the ground line for the ultrasonic transducer can be connected to the matching layer of the ultrasonic stack, the ultrasonic stack is fixed to the inner housing, An epoxy having electrical conductivity may be used.

In the inner housing having the structure using only the electrode pattern, the electrode pattern for connecting the signal line to the ultrasonic transducer can be connected from the position where the ultrasonic stack of the ultrasonic transducer is placed in the inner housing to the rear end of the inner housing, An electrode pattern for connection to a ground line can be connected from a front end portion to a rear end portion of the inner housing, an electrode pattern for connecting a signal line is connected to a sound-absorbing layer of the ultrasonic stack, Can be connected to the matching layer.

In the inner housing having the structure using only the electrode pattern, the rotating shaft is made of an insulator, and the electrode pattern for connection of the signal line and the electrode pattern for connecting the grounding line are in contact with the rotating shaft And the like.

The electrode pattern inside the rotating shaft can be replaced with a wire and the electrode pattern for connecting the signal line of the inner housing and the electrode pattern for connecting the ground line can be opposite to each other.

In connection of the inner housing and the rotary shaft, the rear end portion of the inner housing may include a hole having the same size as the outer diameter of the rotary shaft, or the rear end portion may be formed to have the same diameter as the inner diameter of the rotary shaft.

In the inner housing of the structure using only the groove for the wire, the groove for the signal line to the ultrasonic transducer starts from the portion where the sound-absorbing layer of the ultrasonic stack is placed in the inner housing, and the hole for positioning the signal line inside the rotary shaft And may be formed through the inner housing.

In the case where the groove for the ground line with respect to the ultrasonic transducer is located from the front end portion to the rear end portion of the inner housing and the rear end portion of the inner housing connected to the rotary shaft has the same size hole as the outer diameter of the rotary shaft, And a hole for connection with the insertion portion of the rotary shaft may be included.

When the rear end portion of the inner housing is formed to have the same diameter as the inner diameter of the rotary shaft, the groove for the ground line for the ultrasonic transducer may be located along the surface of the inner housing and extend to the end of the rear end portion.

The positions of the signal lines for the ultrasonic transducer and the ground lines for the ultrasonic transducer may be opposite to each other and the groove for the signal line of the inner housing may be located along the surface of the inner housing and the hole penetrating the inner housing may be omitted .

In the inner housing having the structure in which the electrode pattern and the groove for the wire are simultaneously used, the signal line for the ultrasonic transducer may be a groove, and the ground line for the ultrasonic transducer may be an electrode pattern.

The groove for the signal line may be connected to an opening through the inner housing starting from a position where the ultrasonic stack of the ultrasonic transducer is placed in the inner housing and the electrode pattern for the ground line may be connected from the front end to the rear end of the inner housing, To a position in contact with the shaft.

A ground wire and an additional ground wire may be used for the ultrasonic transducer in the inner housing of the structure in which the groove is used and the additional ground wire is included in a coaxial cable connectable with the rotating shaft and the ground wire is electrically conductive Which is connected to the rotating shaft.

The outer housing may be made of a material for enclosing all or a portion of the inner housing and the ultrasonic stack of the ultrasonic transducer, and insulating the portion adjacent to the ultrasonic stack.

With respect to the inner housing having the structure in which the electrode pattern is used, the outer housing is made of an electrically insulating material, its surface is plated with metal, and the outer housing can be made of an electrically conductive material have.

According to an embodiment of the present invention, when connecting the electrodes to the IVUS stack to simplify the housing manufacturing process by separating the housing of the IVUS converter into two parts in order to manufacture the IVUS converter and to apply the signal to the IVUS converter, By using grooves or electrode patterns in the IVUS housing, it is possible to more easily and efficiently connect the electrodes, thereby simplifying and simplifying the manufacturing process of the housing.

1 illustrates a state in which an IVUS stack, a signal line, a rotating shaft, and a housing are coupled according to an embodiment of the present invention.
2 to 3 show an inner housing having a structure in which only an electrode pattern is used according to an embodiment of the present invention.
4 to 6 show an inner housing having a structure in which only wires are used according to an embodiment of the present invention.
7 to 9 show an inner housing having a structure in which electrode patterns and wires are used simultaneously according to an embodiment of the present invention.
10 shows an example of an outer housing according to an embodiment of the present invention.
Figs. 11 to 13 show an inner housing having a structure without an inclined surface. Fig.
Figure 14 shows an outer housing associated with the inner housing of Figures 11-13.

The terms used in this specification will be briefly described, and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms " part, "" module," and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

The term "ultrasound image" in the entire specification means an image of a target object obtained by using the principle of scattering, reflection, and refraction of ultrasound.

Throughout the specification, the term "user" may be a physician, nurse, clinician, medical imaging expert, etc. as a medical professional and may be, but not limited to, a technician repairing a medical device.

Throughout the specification, "object" can include a portion of the body. For example, the subject may include organs such as blood vessels, liver, heart, uterus, brain, breast, abdomen, and the like.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Single-element IVUS converters can be roughly divided into IVUS stacks and IVUS housings. The IVUS stack serves to transmit and receive ultrasound beams. The IVUS housing protects the IVUS stack and is made of a metal material to provide radio frequency shielding (RF shielding) It plays a role. In order to facilitate the electrode connection, the IVUS stack generally uses an electrically conductive matching layer and a sound-absorbing layer, and uses an electrically conductive adhesive when the electrodes are connected.

The connection and grounding of the signal lines to the IVUS stack are generally divided into two major categories. The first method is to connect the IVUS housing with the electrically conductive matching layer to connect or ground to the cathode and to connect the sound-absorbing layer with electrical conductivity to the signal line. In general, the matching layer and the IVUS housing are interconnected The gold / chromium sputtering method is used. In this case, since the gold / chrome plating technique is further added in the process of connecting the matching layer to the IVUS housing, the manufacturing process becomes complicated and the production cost increases.

The second method is a wire method in which a sound-absorbing layer having electrical conductivity is connected to an IVUS housing by means of an electrically conductive adhesive, and the wire serves as a signal line and is electrically conductive Lt; / RTI > Currently commercial products use the second method of connecting the signal lines to the IVUS stack, but signal lines must be connected to the piezoelectric element region where the ultrasonic beam is generated in the manufacturing process. As a result, The generation area of the beam is reduced and distortion of the ultrasonic beam transmitted and received as a whole occurs. In order to minimize this problem, when the IVUS transducer is connected to the IVUS housing, the area of the adhesive is minimized. However, when rotating at 2000 rpm, the type of the adhesive having appropriate strength so that the signal line and the matching layer are not separated by centrifugal force, Is necessary.

In addition, for commercial products, when connecting the IVUS stack to the IVUS housing, the IVUS housing is drilled in the same way as the IVUS stack, and the IVUS stack is first inserted into the IVUS housing and then the signal line is connected and grounded. Therefore, the hole of the housing where the IVUS stack and the IVUS stack are inserted must be accurately formed, and since the position where the IVUS stack is located and the position of the signal line in the housing are somewhat far away, Care must be taken to avoid shorting the sound-absorbing layer.

The IVUS converter housing provided as an embodiment of the present invention can be largely classified into three types according to whether an electrode pattern or a groove for a wire is included or not. The housing may have a structure using only an electrode pattern, a housing using only a groove, And a housing having a structure in which electrode patterns and grooves are used at the same time. The method of grooving the housing is a method for using a wire so as to make the connection of the wire easier by using the groove.

1 shows a state in which both the IVUS stack 24, the signal line 25, the rotating shaft 26, and the inner housing and the outer housing are combined according to an embodiment of the present invention. Fig. 1 (a) is a view when having an angle of 45, and Fig. 1 (b) shows when having an angle of 0 deg. In other words, Fig. 1 (b) shows an example of an IVUS converter without slope.

Figures 2-9 show the inner housing with a 45 angle, and Figure 10 shows the outer housing for Figures 2-9. In each drawing, (a) to (e) show a front perspective view, a rear perspective view, a front side view, a rear side view, and a rear view, respectively. The angle of the inner housing is not limited to 45 °, but may have various angles such as 0 °, 30 °, and 60 ° depending on the user's purpose. For convenience of explanation, in the description of each drawing, an electrode pattern for a signal line, an electrode pattern for grounding, a groove for a signal line, and a groove for a ground line are used. However, The pattern or groove may be reversed in function.

An IVUS transducer housing according to an embodiment of the present invention is divided into two parts and includes an inner housing capable of accommodating the IVUS stack 24, an IVUS stack 24, And an outer housing for protecting the housing. The inner housing is fabricated using a non-metallic material and the angle of the ultrasonic beam generated in the IVUS transducer can be easily adjusted by adjusting the angle at which the IVUS stack 24 is placed. In the case of the outer housing, metal or non-metal may be used depending on whether the electrode pattern is used or not. In the case of non-metal, the surface of the outer housing may be plated with a material such as gold which is less reactive in the body for radio frequency shielding.

The housing for the ultrasound transducer includes an inner housing and an outer housing, and at least one of an electrode pattern and a groove for a wire is used for connecting the electrode to the ultrasonic transducer to be housed in the housing, The rear end of the housing may be connected to a rotating shaft for rotation.

The predetermined angle in accordance with an embodiment of the present invention may be 0 deg., 30 deg., 60 deg., Etc., but is not limited thereto. The case of having an angle of 0 degrees refers to a case where an inclined plane is not included.

Figs. 2 to 3 show an IVUS inner housing using only an electrode pattern. The rear end portion of the inner housing, which is joined to the rotary shaft 26 for connection with the rotary shaft 26, is perforated to have the same diameter as the outer diameter of the rotary shaft 26, as shown in FIG. 2, And may have the same diameter as the inner diameter of the rotating shaft 26. [ The electrode pattern is present on the surface of the inner housing and can be divided into an electrode pattern (2) for a signal line and an electrode pattern (3) for a ground line. The electrode pattern 2 used as a signal line is connected to the sound absorbing layer of the IVUS stack 24 and the electrode pattern 3 used as a ground line can be connected to the matching layer of the IVUS stack 24.

The electrode pattern 2 for the signal line of the IVUS inner housing 1 can be connected from the position 4 where the IVUS stack 24 rests to the rear end 6 along the center line. The electrode pattern 3 used as a ground line can be connected from the front end 5 of the inner housing to the rear end 6 with respect to the center line from the position of the matching layer of the IVUS stack 24. The electrode pattern 2 for each signal line and the electrode pattern 3 for the ground line are connected to the electrode pattern inside the rotating shaft 26 composed of an insulator, The electrode can be connected to the inside of the electrode. As described above, the electrode pattern 2 for the signal line and the electrode pattern 3 for the ground line may have opposite functions, and the electrode pattern inside the rotating shaft 26 may be replaced with a wire. An adhesive such as an electrically conductive epoxy may be used to secure the IVUS stack 24 and the inner housing and to connect the IVUS stack 24 with the electrode pattern in the housing.

The signal line for the ultrasonic transducer can be connected to the sound absorbing layer of the ultrasonic stack inside the ultrasonic transducer, the ground line for the ultrasonic transducer can be connected to the matching layer of the ultrasonic stack, the ultrasonic stack is fixed to the inner housing, An epoxy having electrical conductivity may be used for connection of the electrodes.

In the inner housing having the structure using only the electrode pattern, the electrode pattern for connecting the signal line of the ultrasonic transducer can be connected from the position where the ultrasonic stack in the ultrasonic transducer is placed in the inner housing to the rear end of the inner housing, The electrode pattern for connecting the ground line to the ground can be connected from the front end to the rear end of the inner housing, the electrode pattern for connecting the signal line is connected to the sound-absorbing layer of the ultrasonic stack, Can be connected to the matching layer of the stack.

3, the electrode pattern 2 for the signal line of the IVUS inner housing 7 extends in the direction of the rearward end along the center line at the position 4 where the IVUS stack 24 rests, To the point where the outer diameter of the rear end portion is reduced, or to the end of the rear end portion. Similarly to the electrode pattern 2 for the signal line, the electrode pattern 2 for the ground line is connected to the point where the pattern is located along the center line from the front end portion to the rear end portion and the outer diameter of the rear end portion is reduced, .

Figures 4-6 illustrate an IVUS inner housing using only wires.

In the inner housing of the structure using only the groove for the wire, the groove for the signal line of the ultrasonic transducer starts from the portion where the sound absorbing layer of the ultrasonic stack in the ultrasonic transducer in the inner housing is placed, and the signal line is located inside the rotary shaft Hole may be formed through the inner housing.

When the rear end of the inner housing is formed to have the same diameter as the inner diameter of the rotary shaft, the groove for the ground line with respect to the ultrasonic transducer may be located along the surface of the inner housing and connected to the end of the rear end.

The positions of the signal lines for the ultrasonic transducer and the ground lines for the ultrasonic transducer may be opposite to each other and the grooves for the signal lines of the inner housing may be located along the surface of the inner housing and the holes through the inner housing may be omitted .

The IVUS inner housing 8 of FIG. 4 may have a groove for the wire in the inner housing so that the wire can naturally be positioned along the housing surface. The groove for wire connection is divided into a groove 9 for a signal line and a groove 11 for a ground line. Similar to the electrode pattern, the groove 9 for the signal line starts from the portion where the sound-absorbing layer is laid in the inner housing, and the signal line is further connected to the hole 10 penetrating the inner housing for entering the inside of the rotary shaft 26 have. The signal line and the sound-absorbing layer are connected in the same manner as in the case of using the electrode pattern in connecting the signal line, and the signal line is positioned to the groove thickness from the position 4 where the IVUS stack 24 is placed to the hole 10 through the inner housing . The groove 11 for the ground wire is also located from the front end to the rear end and the groove 11 for the ground wire is not completely connected to the rear end so that the ground wire is located inside the rotary shaft 26, Hole 12 is pierced at one-third of the housing and can be connected to the portion into which the rotating shaft 26 is inserted. At this time, the position of the hole 12 for the ground line may be changed. The ground wire is connected to the matching layer of the IVUS stack 24 and enters the inside of the rotating shaft 26 along the groove 11 and the hole 12. 2 to 3, the IVUS stack 24 is located in the inner housing, and an epoxy having electrical conductivity may be used for fixing the IVUS stack 24 and connecting the signal line and the ground line, respectively. The positions of the signal line and the ground line can be changed with each other. 4, the rear end portion of the inner housing, which is joined to the rotary shaft 26 to connect the rotary shaft 26, is perforated with a diameter equal to the outer diameter of the rotary shaft 26, The inner diameter of the rotating shaft 26 may be the same as the inner diameter of the rotating shaft 26 as shown in FIG. 5 and 6, when the rear end of the inner housing has the same diameter as the inner diameter of the rotating shaft 26, the groove for the signal line is connected to the hole penetrating the inner housing (e.g., Fig. 5) (E. G., Fig. 6) along the surface of the housing, without the need for a hole through the inner housing.

5 shows a case in which the rear end portion 6 of the IVUS inner housing 13 among the IVUS inner housings using only wires is designed to have the same diameter as the inner diameter of the rotary shaft 26. [ In this case, the groove 9 for the signal line is connected to the hole 10 passing through the inner housing so that the signal line can be positioned inside the rotary shaft 26 as shown in FIG. 3, and the groove 11 for the ground line Can be located along the surface of the inner housing and connected to the end of the rear end portion (6).

Fig. 6 shows the case where the groove 9 for the signal line is located along the surface of the inner housing in Fig. Like the groove 11 for the ground wire, to the rear end portion 6 of the inner housing, and the hole 10 through the inner housing may be eliminated at this time.

7 to 9 show an IVUS inner housing using an electrode pattern and a wire at the same time. The inner housing according to an embodiment of the present invention may have a structure in which an electrode pattern and a wire are used simultaneously, as shown in FIGS.

The signal line for the ultrasonic transducer may be a groove and the ground line for the ultrasonic transducer may be an electrode pattern in an inner housing having a structure in which grooves for an electrode pattern and a wire are simultaneously used according to an embodiment of the present invention.

For convenience of description, the grooves for the electrode pattern and the wires in FIGS. 6 to 8 serve as grooves for the ground line and the signal line, respectively, and the signal line can be formed as an electrode pattern and the ground line can also be manufactured as a wire Do. The groove 9 for the signal line may begin at the position where the IVUS stack 24 lies in the inner housing and may be connected to the hole 10 which further penetrates the inner housing for wire connection. The electrode pattern 3 for grounding is connected from the front end 5 to the rear end 6 of the inner housing and the electrode pattern 3 for grounding is connected to the conductive layer of the IVUS stack 24, Can be used. The electrode pattern 3 for grounding may be located up to the portion to which the rotating shaft 26 is connected for connection with the rotating shaft 26. The inner housing 15 shown in Fig. 7 is a case in which a rear end portion of the inner housing joined to the rotating shaft 26 is perforated with a diameter equal to the outer diameter of the rotating shaft 26, and the electrode pattern for grounding is a rotating shaft 26 to the inside of the hole to which the rotating shaft 26 is connected. 8 is a case in which the rear end of the inner housing has the same diameter as the inner diameter of the rotary shaft 26 and the groove for the signal line is located along the surface of the inner housing 17 And it is not necessary to have a hole penetrating the inner housing at this time. The electrode pattern for grounding can be positioned so that the electrode pattern can be connected to the rotating shaft 26. [

In Figs. 7 to 9, additional ground lines may be used to reduce noise generated during transmission or reception of ultrasonic waves. When no additional grounding wire is used, the grounding wire is connected to a rotating shaft 26 having electrical conductivity and a general wire is used. In the case of using a coaxial cable in the case of using an additional ground wire, since a ground wire in addition to the coaxial cable is used in addition to the rotating shaft 26 serving as a ground, noise can be canceled more effectively by having a total of two ground wires .

Figure 10 shows an outer housing 18 used to protect the inner housing and the IVUS stack 24. The IVUS stack 24 should be well protected because it rotates above about 2000 rpm for a single device IVUS converter. Thus, an outer housing can be used to protect the IVUS stack 24 and wires and electrode patterns for signal application, as well as facilitate the isolation process around the IVUS stack 24. The outer housing has a window 19 to prevent the progress of the ultrasonic beam.

Also, the outer housing can be made of a metal material or an insulator material having electrical conductivity depending on whether an electrode pattern is used or not. In other words, the outer housing may be made of a material for wrapping all or a part of the inner housing and the ultrasonic stack of the ultrasonic transducer, and insulating the portion adjacent to the ultrasonic stack.

2, 3 and 7 to 9, the outer housing surface is plated with metal in order to shield electromagnetic waves of radio frequency (RF). In FIGS. 4, 5, and 7 to 9, when the positions of the grooves for the electrode pattern and the wires are changed, the surface of the outer housing may be made of a metal material having electrical conductivity.

Figs. 11 to 13 show an inner housing having a structure without an inclined surface. Fig. In other words, Figs. 11-13 show front and rear perspective views when the housing has an angle of 0 [deg.]. The angle that the inner housing can have is not limited to this and can have various angles. 11 (a), 11 (b), 11 (c) and 11 (d) are the same as those of FIGS. 2 and 3, respectively. Fig. 12 shows an IVUS inner housing 21 using wires only. Figs. 4A, 4B, 4C and 4D are the same as those of Fig. 5, The groove 9 and the groove 10 for the ground line may be located along the surface of the inner housing. 13 (a), (b), (c) and (d) are the same as those in FIGS. 7 and 8, respectively. 9, the groove 9 for the signal line can be located along the surface of the inner housing. Figure 14 shows an outer housing for Figures 11-13. As in FIG. 10, it is used to protect the IVUS stack 24 and the inner housing, and there may be a window 19 for the progress of the ultrasonic beam.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1: IVUS inner housing with electrode pattern for electrode connection with angle of 45 °
2: Electrode pattern for signal line
3: Electrode pattern for ground wire
4: Position of the IVUS stack
5: inner housing front end
6: inner housing rear end portion
7: IVUS inner housing with electrode pattern for electrode connection with angle of 45 °
IVUS internal housing with only a groove for electrode connection with 8: 45 ° angle
9: groove for signal line
10: hole penetrating the inner housing
11: Groove for ground wire
12: hole where ground wire is inserted
13: IVUS internal housing with only a groove for connecting electrodes with an angle of 45 °
IVUS internal housing with only a groove for electrode connection with 14: 45 ° angle
IVUS internal housing with both 15: 45 ° angled grooves and electrode pattern for electrode connection
IVUS inner housing with both a groove and electrode pattern for electrode connection with a 16: 45 ° angle
IV: IVUS internal housing with groove and electrode pattern for electrode connection with 17: 45 ° angle
18: Outer housing with window with 45 ° angle
19: Window for Ultrasonic Beam Propagation
20: IVUS inner housing with electrode pattern only for electrode connection with 0 ° angle
21: IVUS inner housing with only a groove for electrode connection with 0 ° angle
22: IVUS inner housing with electrode pattern and groove for electrode connection with 0 ° angle
23: outer housing with window with 0 ° angle
24: IVUS stack
25: Signal line using wire
26: rotating shaft

Claims

A housing for an intravascular ultrasound transducer,
The housing includes an inner housing and an outer housing,
A groove for an electrode pattern and a wire is provided in the body of the inner housing for connection of the electrode to the ultrasonic transducer to be accommodated in the housing, the rear end of the inner housing is connected to the rotary shaft for rotation, Wherein the housing protects the electrode pattern, wire and ultrasonic acoustic stack included in the inner housing. &Lt; RTI ID = 0.0 >< / RTI >

The method according to claim 1,
Wherein the inner housing includes an inclined surface for allowing the proceeding direction of the ultrasonic beam by the ultrasonic transducer to have a predetermined angle.

The method according to claim 1,
Wherein the inner housing has a structure to use only the electrode pattern when the electrode for driving the ultrasonic transducer is connected or to simultaneously use the electrode pattern and the groove for the wire. Lt; / RTI >

The method according to claim 1,
Wherein a signal line for the ultrasonic transducer is connectable to a sound-absorbing layer of the ultrasonic transducer of the ultrasonic transducer, a ground line for the ultrasonic transducer is connectable to a matching layer of the ultrasonic transducer, And an epoxy having electrical conductivity is used for connection of the signal line and the electrode.

The method of claim 3,
The electrode pattern for connecting the signal line to the ultrasonic transducer in the inner housing having the structure using only the electrode pattern is formed in such a manner that the ultrasonic transducer of the ultrasonic transducer extends from a position in the inner housing to a rear end And an electrode pattern for connection of a ground line to the ultrasonic transducer is connectable from a front end portion to a rear end portion of the inner housing, and an electrode pattern for connection of the signal line is connected to the sound absorbing layer of the ultrasonic transducer And the electrode pattern for connecting the ground line is connected to the matching layer of the ultrasonic stack.

6. The method of claim 5,
The electrode pattern for connecting the signal line and the electrode pattern for connecting the ground line are connected to the electrode pattern inside the rotating shaft, And wherein the housing is extended to a portion in contact with the rotating shaft.

The method according to claim 6,
Wherein an electrode pattern inside the rotating shaft is replaceable with a wire and an electrode pattern for connecting the signal line of the inner housing and an electrode pattern for connecting the ground line may be opposite to each other. A housing for an ultrasonic transducer.

The method of claim 3,
A hole having the same size as the outer diameter of the rotary shaft is included in the rear end portion of the inner housing in connection with the inner housing and the rotary shaft or the rear end portion is formed to have the same diameter as the inner diameter of the rotary shaft And a housing for the ultrasound transducer.

delete

The method of claim 3,
Wherein the signal line for the ultrasonic transducer in the inner housing having the structure in which the electrode pattern and the groove for the wire are used at the same time uses the groove and the ground line for the ultrasonic transducer uses the electrode pattern. Housing for my ultrasound transducer.

14. The method of claim 13,
Wherein the groove for the signal line is connectable with a hole starting from a position where the ultrasonic transducer of the ultrasonic transducer is placed in the inner housing and passing through the inner housing and an electrode pattern for the ground line is formed from the front end portion of the inner housing And is extended to a position where the ultrasonic transducer is in contact with the rotating shaft.

The method according to claim 1,
A ground line and an additional ground line for the ultrasonic transducer may be used in the inner housing of the structure in which the groove is used,
Wherein the additional ground line is included in a coaxial cable connectable with the rotating shaft,
Wherein the ground line is connected to the rotating shaft having electrical conductivity when the additional ground line is not used. &Lt; Desc / Clms Page number 13 >

The method according to claim 1,
Wherein the outer housing is made of a material for wrapping all or a part of the ultrasonic stack of the inner housing and the ultrasonic transducer and insulating the portion adjacent to the ultrasonic stack.

17. The method of claim 16,
Wherein the outer housing is made of an electrically insulating material, the surface of which is plated with metal,
Wherein the outer housing is made of an electrically conductive material with respect to the inner housing of the structure in which the groove is used.