An ultrasonic probe for direct access to the heart chambers during cardiac surgery

Abstract

The application discloses an ultrasonic probe capable of directly reaching into a heart chamber in a heart operation and relates to the technical field of medical devices. The ultrasonic probe comprises a fixing frame arranged around the heart chamber, the fixing frame being connected with the skin of a patient; a telescopic rod being perpendicular to the fixing frame and being connected with the fixing frame through a spherical hinge, the telescopic rod being capable of extending into the heart chamber of the patient; an ultrasonic probe being arranged on the side wall of the end of the telescopic rod away from the fixing frame, the ultrasonic probe being arranged in the circumference of the telescopic rod, and the ultrasonic probe being provided with a plurality of ultrasonic probes; and a camera being arranged at the end of the telescopic rod away from the fixing frame. The length of the ultrasonic probe extending into the heart chamber of the patient can be changed through the arrangement of the telescopic rod, and the different heart chambers of different patients can be detected. The ultrasonic probe can be fixed on the skin of the patient through the arrangement of the fixing frame. The telescopic rod can be rotated according to the different positions of the diseased parts of different patients through the spherical hinge connection between the fixing frame and the telescopic rod, so that the ultrasonic probe can be in a better detection position.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to an ultrasound probe that can directly access the ventricles of the heart during cardiac surgery. Background Technology

[0002] An ultrasonic probe is a device that emits and receives ultrasonic waves during ultrasonic testing. The performance of the probe directly affects the characteristics of the ultrasonic waves and thus the testing performance.

[0003] The probes used in ultrasonic testing are transducers that utilize the piezoelectric effect of materials to convert electrical energy into acoustic energy. The key component of the probe is the crystal wafer, which is a thin single-crystal or polycrystalline sheet with a piezoelectric effect. Its function is to convert electrical energy and acoustic energy into each other.

[0004] Ultrasound imaging uses ultrasound beams to scan the human body. By receiving and processing the reflected signals, images of internal organs are obtained. During ultrasound imaging, a medical ultrasound probe is used to emit and receive ultrasound waves to obtain images of the inside of the body. When performing ultrasound imaging on the ventricle, the ultrasound probe often needs to be inserted into the ventricle. Current ultrasound probes can only operate outside the patient's body, which cannot guarantee the accuracy of the ultrasound probe's detection. Due to the small space inside the ventricle, the ultrasound probe needs to be placed in a more precise position for ultrasound detection. However, existing devices such as puncture needles cannot work in the ventricle, which can easily lead to deviation of the puncture needle insertion position.

[0005] Therefore, how to provide an ultrasound probe that can accurately reach the ventricle is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an ultrasound probe that can directly reach the ventricle during cardiac surgery, aiming to solve the problems in the background art mentioned above, so as to realize the insertion of the ultrasound probe into the ventricle for detection, while ensuring the stability of the detection position and detection results.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An ultrasound probe that can directly access the ventricles during cardiac surgery includes:

[0009] A fixation frame is disposed around the ventricle and is connected to the patient's skin;

[0010] A telescopic rod, which is perpendicular to the fixed frame and ball-jointed to the fixed frame, is capable of extending into the patient's ventricle;

[0011] An ultrasonic probe is disposed on the side wall of the telescopic rod at the end away from the fixed frame. Multiple ultrasonic probes are disposed thereon and are arranged circumferentially along the telescopic rod.

[0012] A camera is mounted on the end of the telescopic rod away from the fixed frame.

[0013] Furthermore, the fixing frame includes a transverse slide rail, a longitudinal slide block, a slide rod, and a connecting ring. The transverse slide rail is connected to the skin, the longitudinal slide block is slidably connected to the slide rail, the slide rod passes through the longitudinal slide block and is slidably connected to the longitudinal slide block, the slide rod is perpendicular to the transverse slide rail, and the connecting ring is fixedly connected to the end of the slide rod away from the transverse slide rail.

[0014] Furthermore, a first locking screw is provided on the transverse slide rail, the first locking screw passes through the transverse slide rail, and the end of the first locking screw abuts against the longitudinal slide block.

[0015] Furthermore, a second locking screw is provided on the longitudinal slide block, the second locking screw passes through the longitudinal slide block, and the end of the second locking screw abuts against the slide rod.

[0016] Furthermore, a fixing component is provided on the connecting ring, the fixing component including a horizontal pin and a vertical pin. The horizontal pin passes through the connecting ring along the axial direction of the connecting ring and is provided with a wedge. The vertical pin is perpendicular to the horizontal pin. One end of the vertical pin is connected to the wedge of the horizontal pin, and the other end of the vertical pin passes through the connecting ring and abuts against the telescopic rod.

[0017] Furthermore, the telescopic rod includes a hinged hemisphere, a first rod, a second rod, a third rod, and an intermediate shaft. The hinged hemisphere is ball-jointed to the fixed frame. The first rod is fixedly connected to the hinged hemisphere. The second rod is slidably connected to the first rod. The third rod is slidably connected to the second rod. The ultrasonic probe and the camera are mounted on the third rod. The intermediate shaft is threadedly connected to the hinged hemisphere. The end of the intermediate shaft away from the hinged hemisphere passes through the first rod and the second rod and is rotatably connected to the inner wall of the third rod.

[0018] Furthermore, the telescopic rod has a reduced diameter structure, with the first rod sleeved on the second rod, and the second rod sleeved on the third rod.

[0019] Furthermore, a first slip ring is provided at the end of the second rod that extends into the first rod, and the first slip ring is slidably connected to the inner wall of the first rod. A second slip ring is provided at the end of the third rod that extends into the second rod, and the second slip ring is slidably connected to the inner wall of the second rod.

[0020] Furthermore, a control disk is provided at the end of the intermediate shaft away from the ultrasonic probe. The control disk is concentric with the intermediate shaft and is used to control the telescopic rod and the intermediate shaft to rotate with the hinged hemisphere.

[0021] Furthermore, a wire-passing hole is provided inside the intermediate shaft along the axial direction of the intermediate shaft, and the wire-passing hole passes through the intermediate shaft and the control panel.

[0022] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an ultrasound probe that can directly reach the ventricle during cardiac surgery. By connecting the fixation frame and the telescopic rod with a ball joint, the ultrasound probe can be fixed to the patient's skin. The telescopic rod can be rotated according to the different locations of the affected areas of different patients, so that the ultrasound probe can be in a better detection position. By setting the telescopic rod, the length of the ultrasound probe inserted into the patient's ventricle can be changed, enabling detection of different ventricles of different patients. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This invention provides an overall structural diagram of an ultrasound probe that can directly reach the ventricle during cardiac surgery;

[0025] Figure 2 Provided by the present invention Figure 1 The left view;

[0026] Figure 3 Provided by the present invention Figure 1 Enlarged view of section A in the image;

[0027] Figure 4 Provided by the present invention Figure 1 A magnified view of section B in the image.

[0028] Wherein: 1 is the fixed frame; 11 is the transverse slide rail; 101 is the first locking screw; 12 is the longitudinal slide block; 102 is the second locking screw; 13 is the slide rod; 14 is the connecting ring; 104 is the fixed assembly; 1041 is the horizontal pin; 1042 is the longitudinal pin; 2 is the telescopic rod; 21 is the hinged hemisphere; 22 is the first rod; 23 is the second rod; 203 is the first slip ring; 24 is the third rod; 204 is the second slip ring; 25 is the intermediate shaft; 205 is the wire hole; 3 is the ultrasonic probe; 4 is the camera; 5 is the control panel. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] See Figure 1-4 This invention discloses an ultrasound probe that can directly reach the ventricle during cardiac surgery, comprising: a fixation frame 1, a telescopic rod 2, an ultrasound probe 3, and a camera 4.

[0031] A fixation frame 1 is positioned around the ventricle and connected to the patient's skin. A telescopic rod 2 is perpendicular to the fixation frame 1 and ball-jointed to it, allowing it to extend into the patient's ventricle. An ultrasound probe 3 is mounted on the side wall of the telescopic rod 2 at the end furthest from the fixation frame 1, and multiple probes are arranged circumferentially along the telescopic rod 2. A camera 4 is positioned at the end of the telescopic rod 2 furthest from the fixation frame 1. In this embodiment, the fixation frame 1 is used to fix the ultrasound probe 3 entirely to the patient's skin, the telescopic rod 2 can extend into the patient's ventricle from the skin surface, the ultrasound probe 3 is used to perform ultrasound detection of the patient's ventricle, and the camera 4 is used to take pictures of the patient's ventricle.

[0032] The fixing frame 1 includes a transverse slide rail 11, a longitudinal slide block 12, a slide rod 13, and a connecting ring 14. The transverse slide rail 11 is connected to the skin, the longitudinal slide block 12 is slidably connected to the slide rail, the slide rod 13 passes through the longitudinal slide block 12 and is slidably connected to the longitudinal slide block 12, and the slide rod 13 is perpendicular to the transverse slide rail 11. The connecting ring 14 is fixedly connected to the end of the slide rod 13 away from the transverse slide rail 11. In this embodiment, two slide rails are provided, and each slide rail is provided with a longitudinal slide block 12. The longitudinal slide block 12 slides within the transverse slide rail 11, and the transverse slide rail 11 is fixed to the patient's skin. The longitudinal slide block 12 is provided with a sliding hole for the slide rod 13 to pass through. The slide rod 13 slides within the sliding hole and is perpendicular to the transverse slide rail 11. Therefore, in this embodiment, the connecting ring 14 can slide to any position on the two transverse slide rails 11 for testing.

[0033] A first locking screw 101 is provided on the transverse slide rail 11, passing through the transverse slide rail 11, and the end of the first locking screw 101 abuts against the longitudinal slide block 12. A second locking screw 102 is provided on the longitudinal slide block 12, passing through the longitudinal slide block 12, and the end of the second locking screw 102 abuts against the slide rod 13. In this embodiment, the first locking screw 101 is used to lock the transverse slide rail 11 and the longitudinal slide block 12, and the second locking screw 102 is used to lock the longitudinal slide block 12 and the crossbar, thereby fixing and positioning the telescopic rod 2 on the plane of the skin and preventing the telescopic rod 2 from moving.

[0034] A fixing component 104 is provided on the connecting ring 14. The fixing component 104 includes a horizontal pin 1041 and a vertical pin 1042. The horizontal pin 1041 passes through the connecting ring 14 along the axial direction of the connecting ring 14 and is provided with a wedge. The vertical pin 1042 is perpendicular to the horizontal pin 1041. One end of the vertical pin 1042 is connected to the wedge of the horizontal pin 1041, and the other end of the vertical pin 1042 passes through the connecting ring 14 and abuts against the telescopic rod 2. In this embodiment, when the horizontal pin 1041 moves, the wedge on the horizontal pin 1041 can push the vertical pin 1042 to move toward or away from the hinged hemisphere 21. When the vertical pin 1042 moves toward the hinged hemisphere 21, the horizontal pin 1041 will abut against the hinged hemisphere 21 to fix the relative position of the hinged hemisphere 21 and the connecting ring 14, thereby fixing the rotation angle of the telescopic rod 2. When the horizontal pin 1041 moves away from the hinged hemisphere 21, the horizontal pin 1041 separates the hinged hemisphere 21, and the hinged hemisphere 21 can rotate freely, and the telescopic rod 2 can also rotate freely.

[0035] The telescopic rod 2 includes a hinged hemisphere 21, a first rod 22, a second rod 23, a third rod 24, and an intermediate shaft 25. The hinged hemisphere 21 is ball-jointed to the fixed frame 1. The first rod 22 is fixedly connected to the hinged hemisphere 21. The second rod 23 is slidably connected to the first rod 22. The third rod 24 is slidably connected to the second rod 23. An ultrasonic probe 3 and a camera 4 are installed on the third rod 24. The intermediate shaft 25 is threadedly connected to the hinged hemisphere 21. The end of the intermediate shaft 25 away from the hinged hemisphere 21 passes through the first rod 22 and the second rod 23 and is rotatably connected to the inner wall of the third rod 24.

[0036] The telescopic rod 2 has a reduced diameter structure. A first rod 22 is fitted onto a second rod 23, and the second rod 23 is fitted onto a third rod 24. A first slip ring 203 is provided at the end of the second rod 23 that extends into the first rod 22, and the first slip ring 203 is slidably connected to the inner wall of the first rod 22. A second slip ring 204 is provided at the end of the third rod 24 that extends into the second rod 23, and the second slip ring 204 is slidably connected to the inner wall of the first rod 22. In this embodiment, the second rod 23 and the third rod 24 are retracted into the first rod 22 as a whole when not in use. The first slip ring 203 on the second rod 23 prevents the second rod 23 from sliding out of the first rod 22, and the second slip ring 204 on the third rod 24 prevents the third rod 24 from sliding out of the second rod 23. By rotating the intermediate shaft 25, the third rod 24 can be pushed to rotate away from the fixed frame 1. Since the third rod 24 is rotatably connected to the intermediate shaft 25, the extension and retraction of the telescopic rod 2 can be achieved.

[0037] A control disk 5 is provided at the end of the intermediate shaft 25 away from the ultrasound probe 3. The control disk 5 is concentric with the intermediate shaft 25. The control disk 5 is used to control the telescopic rod 2 and the intermediate shaft 25 to rotate with the hinged hemisphere 21. In this embodiment, the control disk 5 is used to control the position and angle of the telescopic rod 2. When the control disk 5 is moved, it can drive the connecting ring 14 to move in the two transverse slide rails 11, which can control the position of the telescopic rod 2. At the same time, by swinging the control disk 5, the angle of the telescopic rod 2 can be adjusted so that the ultrasound probe 3 can have a better position to detect the patient's affected area. By rotating the control disk 5, since the intermediate shaft 25 and the hinged hemisphere 21 are threadedly connected, the telescopic rod 2 can be extended or retracted when the intermediate shaft 25 is rotated.

[0038] A wire hole 205 is provided inside the intermediate shaft 25 along the axial direction of the intermediate shaft 25. The wire hole 205 passes through the intermediate shaft 25 and the control disk 5. In this embodiment, the wire hole 205 is used to place the signal line. The signal line can transmit the electrical signal of the camera 4 and the electrical signal of the ultrasonic probe 3 to the control system of the ultrasonic probe 3.

[0039] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ultrasonic probe for direct access into a heart chamber during cardiac surgery, characterized by, include: A fixation frame is disposed around the ventricle and is fixedly connected to the patient's epicardium or the epidermis around a thoracic incision by medical adhesive or suture. The telescopic rod is perpendicular to the fixed frame and is ball-jointed to the fixed frame. The telescopic rod is a reduced-diameter structure made of sterile, biocompatible material. Its thinnest section can be inserted into the patient's blood-filled ventricle through a micro-incision and can resist the impact of blood flow to remain stable. An ultrasonic probe is disposed on the side wall of the telescopic rod at the end away from the fixed frame. Multiple ultrasonic probes are disposed thereon and are arranged circumferentially along the telescopic rod. The camera, which is a waterproof endoscopic camera, is located at the end of the telescopic rod away from the fixed frame, and is used to provide a real-time direct view of the interior of the ventricle during the extension of the telescopic rod and during scanning.

2. The ultrasonic probe according to claim 1, wherein, The fixing frame includes a transverse slide rail, a longitudinal slide block, a slide rod, and a connecting ring. The transverse slide rail is connected to the skin. The longitudinal slide block is slidably connected to the slide rail. The slide rod passes through the longitudinal slide block and is slidably connected to the longitudinal slide block. The slide rod is perpendicular to the transverse slide rail. The connecting ring is fixedly connected to the end of the slide rod away from the transverse slide rail.

3. An ultrasonic probe according to claim 2, wherein, A first locking screw is provided on the transverse slide rail, the first locking screw passes through the transverse slide rail, and the end of the first locking screw abuts against the longitudinal slide block.

4. The ultrasonic probe according to claim 2, wherein, A second locking screw is provided on the longitudinal slide block, the second locking screw passes through the longitudinal slide block, and the end of the second locking screw abuts against the slide rod.

5. The ultrasonic probe according to claim 2, wherein, The connecting ring is provided with a fixing component, which includes a horizontal pin and a vertical pin. The horizontal pin passes through the connecting ring along the axis of the connecting ring and is provided with a wedge. The vertical pin is perpendicular to the horizontal pin. One end of the vertical pin is connected to the wedge of the horizontal pin, and the other end of the vertical pin passes through the connecting ring and abuts against the telescopic rod.

6. The ultrasonic probe according to claim 1, wherein, The telescopic rod includes a hinged hemisphere, a first rod, a second rod, a third rod, and an intermediate shaft. The hinged hemisphere is ball-jointed to the fixed frame. The first rod is fixedly connected to the hinged hemisphere. The second rod is slidably connected to the first rod. The third rod is slidably connected to the second rod. The ultrasonic probe and the camera are mounted on the third rod. The intermediate shaft is threadedly connected to the hinged hemisphere. The end of the intermediate shaft away from the hinged hemisphere passes through the first rod and the second rod and is rotatably connected to the inner wall of the third rod.

7. An ultrasonic probe according to claim 6, wherein, The telescopic rod has a reduced diameter structure, with the first rod sleeved on the second rod and the second rod sleeved on the third rod.

8. An ultrasonic probe according to claim 7, characterized in that, The second rod has a first slip ring at one end that extends into the first rod, and the first slip ring is slidably connected to the inner wall of the first rod. The third rod has a second slip ring at one end that extends into the second rod, and the second slip ring is slidably connected to the inner wall of the second rod.

9. The ultrasonic probe according to claim 6, wherein, A control disk is provided at the end of the intermediate shaft away from the ultrasonic probe. The control disk is concentric with the intermediate shaft and is used to control the telescopic rod and the intermediate shaft to rotate with the hinged hemisphere.

10. The ultrasonic probe according to claim 9, wherein the distal end of the shaft is configured to be inserted into a ventricle of a heart during a cardiac procedure. The intermediate shaft has a through hole that runs through it along its axial direction, and the through hole passes through the intermediate shaft and the control panel.

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