Intracardiac ultrasonic myocardial biopsy device

Abstract

The utility model provides an intracardiac ultrasonic myocardial biopsy device. The intracardiac ultrasonic myocardial biopsy device comprises an intracardiac ultrasonic assembly and a myocardial biopsy assembly. Wherein the intracardiac ultrasonic assembly comprises an ultrasonic catheter, an ultrasonic handle, a sensor base and an ultrasonic sensor, and an adjustable included angle is formed between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter. The myocardial biopsy assembly comprises a biopsy catheter, a biopsy handle and a biopsy forceps part, and the biopsy forceps part can be opened or closed so as to achieve sampling of samples. The ultrasonic detection area of the intracardiac ultrasonic myocardial biopsy device can cover the sampling area, so that accurate sampling is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heart disease diagnosis, especially to the field of myocardial biopsy. Specifically, the utility model relates to an intracardiac ultrasonic myocardial biopsy device for myocardial biopsy sampling. BACKGROUND

[0002] Acute myocarditis is a fatal serious heart disease, and even if it is chronic myocarditis, it often eventually leads to dilated cardiomyopathy and evolves into "heart cancer". Myocardial biopsy is the gold standard for diagnosing myocarditis. The myocardial biopsy device in the prior art usually needs to be performed under the guidance of a radiographic image. However, relying solely on a radiographic image often cannot accurately position the myocardial biopsy device, resulting in inaccurate sampling and even false negatives leading to misdiagnosis and mistreatment. In addition, inaccurate positioning of the myocardial biopsy device also increases the risk of valve or even heart perforation rupture. Therefore, the existing myocardial biopsy device has been difficult to promote, greatly affecting the diagnosis and treatment of myocarditis.

[0003] Therefore, it is necessary to develop a new type of myocardial biopsy device to solve the above problems. SUMMARY

[0004] In order to solve the problem of inaccurate positioning of the myocardial biopsy device and inaccurate sampling in the prior art, the purpose of the utility model is to provide a new type of myocardial biopsy device that can solve the above problems.

[0005] To this end, the utility model provides an intracardiac ultrasonic myocardial biopsy device, which comprises:

[0006] An intracardiac ultrasonic assembly, comprising: an ultrasonic catheter, an ultrasonic handle, a sensor base, and an ultrasonic sensor; wherein the ultrasonic catheter is in the form of a hollow tube, comprising a distal end and a proximal end, the ultrasonic handle is arranged at the proximal end of the ultrasonic catheter, and the sensor base is arranged at the distal end of the ultrasonic catheter; the ultrasonic sensor is pivotably connected to the sensor base at one end, so that the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter form an adjustable included angle; the sensor base is also provided with a biopsy assembly opening;

[0007] The myocardial biopsy assembly comprises: a biopsy catheter, a biopsy handle and a biopsy forceps component; wherein the biopsy catheter is in the form of a hollow tube with an outer diameter not greater than that of the ultrasound catheter and the biopsy assembly opening, and comprises a distal end and a proximal end; the biopsy handle is arranged at the proximal end of the biopsy catheter; and the biopsy forceps component is arranged at the distal end of the biopsy catheter; the myocardial biopsy assembly passes through the intracardiac ultrasound assembly so that at least the biopsy forceps component can extend out of the biopsy assembly opening of the sensor base; the biopsy forceps component can be opened or closed to achieve sampling of a sample, wherein the outer diameter of the biopsy forceps component in the closed state is not greater than that of the biopsy catheter; and the biopsy handle is further provided with biopsy forceps adjusting means, which can adjust the opening and closing of the biopsy forceps component and the relative position between the biopsy forceps component and the ultrasound sensor.

[0008] The intracardiac ultrasound myocardial biopsy device comprises an intracardiac ultrasound assembly and a myocardial biopsy assembly, wherein the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter form an adjustable included angle, so that the ultrasound detection surface can face the biopsy forceps component during sampling by the myocardial biopsy assembly. In this way, the ultrasound detection area can cover the sampling area, thereby achieving accurate sampling. In the most basic case, the included angle between the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter of the intracardiac ultrasound myocardial biopsy device can be manually adjusted and positioned by an operator before use, thereby achieving the technical effects described above.

[0009] In a preferred embodiment, the ultrasound handle of the intracardiac ultrasound myocardial biopsy device is further provided with ultrasound sensor adjusting means, which can adjust the included angle between the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter. In this way, the operator can adjust this included angle in real time during use, so that the normal direction of the ultrasound detection surface always points to the biopsy forceps component, thereby ensuring the effect of ultrasound imaging.

[0010] In another preferred embodiment, the included angle between the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter of the intracardiac ultrasound myocardial biopsy device is linked to the position of the biopsy forceps component. The linkage means that as the biopsy forceps component extends out of the sensor base, the angle of the included angle gradually increases, so that the normal direction of the ultrasound detection surface always points to the biopsy forceps component. In this way, the operator does not need to adjust the above-mentioned included angle separately, thereby simplifying the operation while ensuring the effect of ultrasound imaging. BRIEF DESCRIPTION OF DRAWINGS

[0011] The advantages and features of the present utility model will now be described in detail with reference to the accompanying drawings, in which the components are not necessarily drawn to scale, and wherein:

[0012] Figure 1 A perspective view of one embodiment of the intracardiac ultrasound myocardial biopsy device is shown.

[0013] Figure 2 A perspective view of one embodiment of the intracardiac ultrasound myocardial biopsy device is shown. Figure 1 A partial enlarged view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown.

[0014] Figure 3 A perspective view of one embodiment of the intracardiac ultrasound myocardial biopsy device is shown. Figure 1 A partial enlarged view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown.

[0015] Figure 4 A perspective view of one embodiment of the intracardiac ultrasound myocardial biopsy device is shown. Figure 1 A partial enlarged view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown.

[0016] Figure 5 A perspective view of one embodiment of the intracardiac ultrasound myocardial biopsy device is shown. Figure 1 A side view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown, wherein the biopsy forceps component is in a retracted state.

[0017] Figure 6 A side view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown, wherein the biopsy forceps component is in an extended state. Figure 1 A side view of the distal end of the intracardiac ultrasound myocardial biopsy device is shown, wherein the biopsy forceps component is in an extended state.

[0018] It should be understood that the drawings are drawn for example purposes only and should not be considered as limiting the present application. DETAILED DESCRIPTION

[0019] In the present specification, the "proximal end, distal end" is divided with reference to the position of the operator, that is, the end closer to the operator in use is referred to as the "proximal end", and the end farther from the operator in use is referred to as the "distal end".

[0020] In the present specification, the "ultrasound detection surface" refers to the surface of the ultrasound sensor that emits ultrasound waves, and the area covered by the ultrasound waves emitted by the "ultrasound detection surface" is the "ultrasound detection area", that is, the imaging area of the ultrasound sensor.

[0021] The present application provides an intracardiac ultrasound myocardial biopsy device, which comprises:

[0022] An intracardiac ultrasound assembly comprising: an ultrasound catheter, an ultrasound handle, a sensor base and an ultrasound sensor; wherein the ultrasound catheter is in the form of a hollow tube comprising a distal end and a proximal end, the ultrasound handle is disposed at the proximal end of the ultrasound catheter, and the sensor base is disposed at the distal end of the ultrasound catheter; the ultrasound sensor is pivotably connected at one end to the sensor base such that an ultrasound detection surface of the ultrasound sensor is at an adjustable angle to an axis of the ultrasound catheter; and a biopsy assembly opening is further provided on the sensor base;

[0023] A myocardial biopsy assembly comprising: a biopsy catheter, a biopsy handle and a biopsy forceps component; wherein the biopsy catheter is in the form of a hollow tube having an outer diameter no greater than the ultrasound catheter and the biopsy assembly opening, comprising a distal end and a proximal end, the biopsy handle is disposed at the proximal end of the biopsy catheter, and the biopsy forceps component is disposed at the distal end of the biopsy catheter; the myocardial biopsy assembly passes through the intracardiac ultrasound assembly such that at least the biopsy forceps component can extend out of the biopsy assembly opening of the sensor base; the biopsy forceps component can be opened or closed to achieve sampling of a sample, wherein the outer diameter of the biopsy forceps component in the closed state is no greater than the outer diameter of the biopsy catheter, so that the myocardial biopsy assembly can be separated from the intracardiac ultrasound assembly after sampling; and a biopsy forceps adjustment device is further provided on the biopsy handle, which can adjust the opening and closing of the biopsy forceps component and the relative position between the biopsy forceps component and the ultrasound sensor.

[0024] In a preferred embodiment of the present application, the biopsy forceps component comprises: a biopsy forceps base, a biopsy forceps push rod, a biopsy forceps connecting piece and at least two biopsy forceps jaws; wherein the biopsy forceps base is connected to the distal end of the biopsy catheter, the biopsy forceps jaws are rotatably connected to the biopsy forceps base to achieve opening and closing of the biopsy forceps component, and the biopsy forceps base simultaneously defines the maximum opening angle of the biopsy forceps jaws; wherein the biopsy forceps connecting piece connects the proximal end of each biopsy forceps jaw and the distal end of the biopsy forceps push rod, and in use the operator can push the biopsy forceps push rod to move the biopsy forceps jaws towards each other to achieve closure; and wherein the biopsy forceps push rod is connected at the other end to the biopsy forceps adjustment device.

[0025] In a preferred embodiment of the present application, the distal end of at least one of the biopsy forceps jaws is provided with a groove for accommodating a sample. More preferably, the edge of the groove of the biopsy forceps jaw is further provided with a cutting portion for cutting the sample.

[0026] In one preferred embodiment of the present application, the biopsy forceps adjusting device comprises: an adjusting push button and an adjusting rod; wherein the adjusting push button is connected with the biopsy forceps push rod, and is used for adjusting the opening and closing of the biopsy forceps component; and the adjusting rod is used for adjusting the relative position between the biopsy forceps component and the ultrasonic sensor.

[0027] In one preferred embodiment of the present application, a limiting step is further arranged on the biopsy forceps component, and the limiting step limits the maximum distance of the biopsy forceps component from the sensor base. In this way, the biopsy forceps component can be prevented from being excessively stretched due to misoperation, and the risk of valve damage caused by the biopsy forceps component being excessively stretched can be avoided.

[0028] In one preferred embodiment of the present application, the included angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter can be adjusted within the range of 0° to 90°. More preferably, the included angle is adjusted within the range of 0° to 45°.

[0029] In one preferred embodiment of the present application, the ultrasonic sensor is an ultrasonic deep window transducer, and the ultrasonic detection surface of the ultrasonic deep window transducer has a curvature. In the case that the ultrasonic detection surface has a curvature, the ultrasonic sensor (such as the ultrasonic deep window transducer) has a larger ultrasonic detection area, and can cover a larger sampling area.

[0030] In one preferred embodiment of the present application, a spring is further arranged in the ultrasonic catheter and / or the biopsy catheter. The spring is used for supporting the catheter to maintain the original shape of the catheter, and also facilitates the bending of the catheter.

[0031] In one preferred embodiment of the present application, an ultrasonic sensor adjusting device is further arranged on the ultrasonic handle, and the ultrasonic sensor adjusting device can adjust the included angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter. In this way, the operator can adjust the included angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter in real time through the ultrasonic sensor adjusting device during the sampling process, so that the normal direction of the ultrasonic detection surface of the ultrasonic sensor always points to the biopsy forceps component (i.e., the sampling area), and the effect of ultrasonic imaging is ensured.

[0032] In one preferred embodiment of the present application, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter is linked to the position of the biopsy forceps component. More preferably, the linkage means that as the biopsy forceps component extends from the sensor base, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter gradually increases, so that the normal direction of the ultrasonic detection surface always points to the biopsy forceps component. This configuration omits the ultrasonic sensor adjusting device, and the operator does not need to separately adjust the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter, thereby simplifying the operation while ensuring the effect of ultrasonic imaging.

[0033] The various components of the intracardiac ultrasonic myocardial biopsy device of the present application can be made of plastic, metal or the like, and are prepared by using common processing and molding methods. Specifically, the plastic material can be ABS, nylon, polyurethane, etc., and the metal material can be stainless steel, aluminum, copper, etc. If a plastic material is used, the common processing and molding methods are injection molding, molding, extrusion molding, etc. If a metal material is used, the common processing and molding methods are machining, casting, stamping, bending, etc. Preferably, the sensor base is made of polyether ether ketone (PEEK) material, the ultrasonic catheter and / or biopsy catheter is made of braided thermoplastic polyurethane (TPU) material, and the biopsy forceps jaws are made of stainless steel or nickel-titanium alloy.

[0034] The connection between the various parts of the intracardiac ultrasonic assembly and the myocardial biopsy assembly of the intracardiac ultrasonic myocardial biopsy device of the present application is connected by using the common medical material connection method in the prior art, such as heat sealing connection.

[0035] In the most basic case, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter of the intracardiac ultrasonic myocardial biopsy device of the present application is manually adjusted before use. Further, the ultrasonic handle is additionally provided with an ultrasonic sensor adjusting device, so that the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter can be adjusted in real time during use, thereby ensuring the effect of ultrasonic imaging. Furthermore, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter is linked to the position of the biopsy forceps component, so that the operator does not need to separately adjust the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter, thereby simplifying the operation while ensuring the effect of ultrasonic imaging.

[0036] The specific embodiments of the present application will be described below with reference to the accompanying drawings, but the present application is not limited to these specific embodiments.

[0037] Figure 1 A perspective view of one embodiment of the intracardiac ultrasonic myocardial biopsy device of the present application is shown. As shown inFigure 1 As shown, the intracardiac ultrasonic myocardial biopsy device includes an intracardiac ultrasonic component and a myocardial biopsy component. The intracardiac ultrasonic component includes: an ultrasonic catheter 8, an ultrasonic handle 12, a sensor base 5 and an ultrasonic sensor 6 (i.e., an ultrasonic deep window transducer with an arc-shaped ultrasonic detection surface). The myocardial biopsy component includes: a biopsy catheter (not shown), a biopsy handle and a biopsy forceps component. Specifically, the ultrasonic handle 12 also includes an ultrasonic sensor adjustment device 13, and the biopsy handle includes a biopsy forceps adjustment device composed of an adjustment button 11 and an adjustment rod 10, and the biopsy forceps component includes a biopsy forceps base 1, a biopsy forceps push rod (not shown), a biopsy forceps connector 3 and two biopsy forceps claws 2. The myocardial biopsy component passes through the intracardiac ultrasonic component so that the biopsy forceps component extends from the sensor base 5. The adjustment button 11 can adjust the opening and closing of the biopsy forceps component. The adjustment rod 10 can adjust the relative position between the biopsy forceps component and the ultrasonic sensor 6.

[0038] Figure 2 Shown Figure 1 The enlarged view of the distal end of the intracardiac ultrasonic myocardial biopsy device is shown. Figure 2 As shown, the sensor base 5 is arranged at the distal end of the ultrasonic catheter 8, and the ultrasonic sensor 6 is pivotally connected to the sensor base 5. The angle between the ultrasonic detection surface of the ultrasonic sensor 6 and the axis of the ultrasonic catheter 8 can be adjusted by Figure 1 The ultrasonic sensor adjustment device 13 shown in FIG is adjusted. Two biopsy forceps jaws 2 are rotatably connected to the biopsy forceps base 1, and the biopsy forceps connecting member 3 connects the proximal end of each biopsy forceps jaw 2 and the distal end of the biopsy forceps push rod (not shown).

[0039] Figure 3 Shown Figure 1 FIG. 1 is a partial enlarged view of the distal end of the myocardial biopsy component of the intracardiac ultrasonic myocardial biopsy device. Figure 3 As shown, the biopsy forceps base 1 is disposed at the distal end of the biopsy catheter 7 and also defines the maximum opening angle of the biopsy forceps jaws 2. A recess for accommodating a sample is also provided at the distal end of each biopsy forceps jaw 2. The edges of the recesses in the biopsy forceps jaws are also provided with cutting portions for cutting the sample.

[0040] Figure 4 Shown Figure 1 FIG. 1 is a partial enlarged view of the distal end of the intracardiac ultrasound component of the intracardiac ultrasound myocardial biopsy device shown in FIG. 1 and FIG. 2 are more particularly shown to be pivotally connected between the sensor base 5 and the ultrasound sensor 6. Figure 4 As shown, the ultrasonic sensor 6 is a deep-window ultrasonic transducer with a curved ultrasonic detection surface. Furthermore, the inner diameter of the biopsy assembly opening on the sensor base 5 is not less than the outer diameter of the myocardial biopsy assembly in the closed state, allowing the myocardial biopsy assembly to be removed from the intracardiac ultrasound assembly.

[0041] Figure 5 Shown Figure 1 A side view of the distal end of an intracardiac ultrasonic myocardial biopsy device is shown with the biopsy forceps component in a retracted state. Figure 5 As shown, when the biopsy forceps component is in the retracted state, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter is small. Figure 6 Shown Figure 1 A side view of the distal end of an intracardiac ultrasonic myocardial biopsy device is shown with the biopsy forceps component in an extended position. Figure 6 As shown in FIG, when the biopsy forceps component is in the extended state, the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter is large. Figure 5 to Figure 6 The angle is changed by Figure 1 This is achieved by the ultrasonic sensor adjustment device 13 shown in FIG.

[0042] Figure 1 to Figure 6 The specific steps for using the illustrated embodiment of the intracardiac ultrasonic myocardial biopsy device are as follows: The operator first positions the intracardiac ultrasonic myocardial biopsy device, with the biopsy forceps in a contracted position, near the myocardium to be sampled. The operator then uses an adjustment lever to extend the biopsy forceps to the myocardial sampling position. While extending the biopsy forceps, the operator uses the ultrasonic sensor adjustment device to adjust the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter, ensuring that the normal direction of the ultrasonic detection surface always points toward the biopsy forceps, ensuring effective ultrasonic imaging. The operator then adjusts the push button to close the biopsy forceps to complete the sampling process. Finally, the operator removes the myocardial biopsy assembly, containing the sample, from the intracardiac ultrasonic assembly, completing the sampling operation.

[0043] Although Figure 1 to Figure 6 In the illustrated embodiment of the intracardiac ultrasonic myocardial biopsy device, the angle between the ultrasonic sensor's ultrasonic detection surface and the axis of the ultrasonic catheter is adjusted using an ultrasonic sensor adjustment device. Specifically, the operator needs to adjust this angle using the ultrasonic sensor adjustment device according to the position of the biopsy forceps. Those skilled in the art will appreciate that it is also possible to omit the ultrasonic sensor adjustment device and instead have the angle be linked to the position of the biopsy forceps or have the operator manually adjust the angle before use. All of these technical solutions fall within the scope of protection of the present utility model.

Claims

1. An intracardiac ultrasound myocardial biopsy device, comprising: The application relates to an intracardiac ultrasound assembly and a myocardial biopsy assembly. The intracardiac ultrasound assembly comprises an ultrasound catheter, an ultrasound handle, a sensor base and an ultrasound sensor; wherein the ultrasound catheter is in the form of a hollow tube, comprising a distal end and a proximal end, the ultrasound handle is arranged at the proximal end of the ultrasound catheter, and the sensor base is arranged at the distal end of the ultrasound catheter; the ultrasound sensor is pivotally connected to the sensor base at one end, so that the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter form an adjustable angle; and a biopsy assembly opening is further arranged on the sensor base. The myocardial biopsy assembly comprises a biopsy catheter, a biopsy handle and a biopsy forceps component; wherein the biopsy catheter is in the form of a hollow tube with an outer diameter not greater than that of the ultrasound catheter and the biopsy assembly opening, comprising a distal end and a proximal end, the biopsy handle is arranged at the proximal end of the biopsy catheter, and the biopsy forceps component is arranged at the distal end of the biopsy catheter; the myocardial biopsy assembly passes through the intracardiac ultrasound assembly, so that at least the biopsy forceps component can extend out of the biopsy assembly opening of the sensor base; the biopsy forceps component can be opened or closed to sample a sample, wherein the outer diameter of the biopsy forceps component in the closed state is not greater than the outer diameter of the biopsy catheter; and a biopsy forceps adjusting device is further arranged on the biopsy handle, which can adjust the opening and closing of the biopsy forceps component and the relative position between the biopsy forceps component and the ultrasound sensor.

2. The intracardiac echocardiography myocardial biopsy device of claim 1, wherein, The biopsy forceps component comprises a biopsy forceps base, a biopsy forceps push rod, a biopsy forceps connecting piece and at least two biopsy forceps claws; wherein the biopsy forceps base is connected to the distal end of the biopsy catheter, the biopsy forceps claws are rotatably connected to the biopsy forceps base, so as to realize the opening and closing of the biopsy forceps component, and the biopsy forceps base simultaneously defines the maximum opening angle of the biopsy forceps claws; wherein the biopsy forceps connecting piece connects the proximal end of each biopsy forceps claw and the distal end of the biopsy forceps push rod, and in use, an operator can push the biopsy forceps push rod to make the biopsy forceps claws move towards each other to realize closing; wherein the biopsy forceps push rod is connected to the biopsy forceps adjusting device at the other end.

3. The intracardiac echocardiography myocardial biopsy device of claim 2, wherein, The distal end of at least one of the biopsy forceps claws is provided with a groove for accommodating a sample.

4. The intracardiac echocardiography myocardial biopsy device of claim 3, wherein, The edge of the groove of the biopsy forceps claw is further provided with a cutting part for cutting a sample.

5. The intracardiac echocardiography myocardial biopsy device of claim 2, wherein, The biopsy forceps adjusting device comprises an adjusting push button and an adjusting rod; wherein the adjusting push button is connected to the biopsy forceps push rod for adjusting the opening and closing of the biopsy forceps component, and the adjusting rod is used for adjusting the relative position between the biopsy forceps component and the ultrasound sensor.

6. The intracardiac echocardiography myocardial biopsy device of claim 2, wherein, A limiting step is further arranged on the biopsy forceps component, which defines the maximum distance of the biopsy forceps component extending out of the sensor base.

7. The intracardiac echocardiography cardiac muscle biopsy device of claim 2, wherein, The biopsy forceps claws are made of stainless steel or nickel-titanium alloy.

8. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The angle between the ultrasound detection surface of the ultrasound sensor and the axis of the ultrasound catheter can be adjusted within the range of 0-90 degrees.

9. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter can be adjusted within a range of 0-45 degrees.

10. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The ultrasonic sensor is an ultrasonic deep window transducer, and the ultrasonic detection surface of the ultrasonic deep window transducer has an arc.

11. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The sensor base is made of polyether ether ketone material.

12. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The ultrasonic catheter and / or biopsy catheter is made of braided thermoplastic polyurethane material.

13. The intracardiac echocardiography cardiac muscle biopsy device of any one of claims 1 to 7, wherein, The inside of the ultrasonic catheter and / or biopsy catheter is further provided with a spring.

14. The intracardiac echocardiography cardiac muscle biopsy device according to any one of claims 1 to 7, wherein, The ultrasonic handle is further provided with an ultrasonic sensor adjusting device, which can adjust the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter.

15. The intracardiac echocardiography cardiac muscle biopsy device according to any one of claims 1 to 7, wherein, The angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter is linked to the position of the biopsy forceps component.

16. The intracardiac echocardiography cardiac muscle biopsy device of claim 15, wherein, The linkage means that as the biopsy forceps component extends from the sensor base, the angle of the angle between the ultrasonic detection surface of the ultrasonic sensor and the axis of the ultrasonic catheter gradually increases, so that the normal direction of the ultrasonic detection surface always points to the biopsy forceps component.

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