Mechanical slide rail mount for carotid flow probe

Abstract

The application belongs to the technical field of medical devices, and provides a carotid artery blood flow monitoring probe sliding rail type mechanical fixing frame. The carotid artery blood flow monitoring probe sliding rail type mechanical fixing frame comprises a supporting device and a pressing device. The supporting device comprises a sliding rail part and a supporting part matched with the neck. The extension direction of the sliding rail part is collinear with the extension direction of the supporting part. The pressing device comprises a fixed part and a monitoring part. The fixed part is located at one end of the pressing device and is in sliding connection with the sliding rail part. The monitoring part of the pressing device comprises a probe support and a horizontal arm capable of crossing the midline of the neck. The probe support is located at the end of the horizontal arm and the other end of the pressing device. Through the above arrangement, the application is convenient for finding the ultrasonic detection position of the carotid artery, fixing the carotid artery ultrasonic detection probe, completing the preliminary positioning of the anatomical region, and improving the efficiency of the doctor in finding the carotid artery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology and provides a sliding rail mechanical fixation frame for a carotid artery blood flow monitoring probe. Background Technology

[0002] Stroke is a disease with a high incidence and disability rate worldwide, with ischemic stroke accounting for approximately 70%. Its main pathological basis is the formation of atherosclerotic plaques in the carotid arteries. Early monitoring of carotid artery blood flow and plaques is crucial for stroke prevention, and ultrasound imaging has become the preferred clinical method due to its non-invasive, real-time, and cost-effective advantages. However, existing technologies have the following problems: They are highly dependent on manual operation; traditional ultrasound examinations require the physician to hold the probe and move it around the neck, which is highly subjective and prone to image quality instability due to hand tremors and uneven pressure, affecting the accuracy of blood flow parameters and plaque morphology measurements; data comparability is low; the carotid artery has a complex course, and it is difficult to ensure the probe is in the same anatomical position across different examinations or between operators, leading to reduced comparability of follow-up data; and the technology is inconvenient for stroke patients due to their limited mobility or inability to move their heads. Existing technology CN120154382B describes a carotid artery pressure hemostasis device for head and neck surgery, belonging to the field of medical device technology. The device includes an adjustment mechanism with an arc-shaped rail fixedly mounted on its top. A hemostatic device is movably mounted on the inner side of the arc-shaped rail. The hemostatic device includes an arc-shaped block and mounting holes. During use, medical personnel can easily adjust the angle and position of the hemostatic device according to the patient's wound condition. By rotating the second handle, the drive screw moves the slide, allowing the hemostatic device to smoothly move down to contact the wound. When pressure is applied, the buffer spring functions to effectively avoid excessive pressure on the patient's neck, ensuring safe and comfortable operation. Simultaneously, the base plate moves up and squeezes the elastic water bladder, allowing fluid to flow into the elastic hemostatic bag. As the slide moves further down, the elastic hemostatic bag expands, working in conjunction with the blood pressure plate. However, the carotid artery examination process cannot apply pressure to both sides of the neck simultaneously. The inventor believes there is room for improvement in the existing technology. Summary of the Invention

[0003] The purpose of this invention is to facilitate the location of the carotid artery for ultrasound detection and to fix the carotid artery ultrasound probe. Secondly, it avoids the need to lift or move the patient, preventing head movement during the examination; it also allows for preliminary localization of the physiological and anatomical region, improving the efficiency of the examining physician in locating the carotid artery.

[0004] A carotid artery blood flow monitoring probe slide rail mechanical fixation frame includes a support device and a pressing device. The support device includes a slide rail part and a support part that cooperates with the neck. The extension direction of the slide rail part is collinear with the extension direction of the support part. The pressing device includes a fixing part and a monitoring part. The fixing part is located at one end of the pressing device and is slidably connected to the slide rail part. The monitoring part of the pressing device includes a probe bracket and a horizontal arm that can cross the midline of the neck. The probe bracket is located at the end of the horizontal arm and the other end of the pressing device. The support component conforms to the neck via its curved surface, providing stable support for the patient's head and preventing head movement during the examination. The support device can be inserted under the patient's neck, and the pressing device can be rotated and locked in place, eliminating the need to lift or move the patient. The support and pressing devices work together to ensure the probe stays close to the patient's neck, replacing manual handling and facilitating adjustments to the ultrasound image by the examining physician. The horizontal arm crosses the midline of the neck, allowing the probe holder to extend from the thyroid cartilage towards the examining physician. This allows the probe holder to reach the physiological and anatomical region located 1-2 cm away from the thyroid cartilage, using the thyroid cartilage as a reference point. Initial localization of the physiological and anatomical region is achieved by pressing the patient's neck from the opposite side, improving the efficiency of locating the carotid artery. Furthermore, because the locking process crosses the thyroid cartilage, the neck movements caused by the patient's breathing and swallowing during the examination will not cause the probe holder to dislodge. The pressing device applies pressure only to one side of the neck, avoiding increased pressure on the carotid artery, which could lead to vagal nerve excitation and reduced cardiac output, affecting the examination.

[0005] Preferably, the fixed part includes a first slider connected to the rotating arm and the slide rail part. The first slider has arc-shaped portions on both sides. One end of the rotating arm is hinged to a horizontal arm, and the other end of the rotating arm is slidably connected to the arc-shaped portion of the first slider. The arc-shaped portion provides a range of rotation for the rotating arm, adapts to patients with different neck circumferences in conjunction with the slider of the slide rail part, and keeps the horizontal arm horizontal to ensure that the probe holder provides similar neck pressure to patients with different neck circumferences.

[0006] Preferably, a first elastic body is provided at the connection between the horizontal arm and the rotating arm. This first elastic body can reduce the angle between the horizontal arm and the rotating arm. The first elastic body between the horizontal arm and the rotating arm is a torsion spring, which controls the angle between the horizontal arm and the rotating arm. This ensures that the horizontal arm remains horizontal and tangent to the apex of the patient's neck even when the slider is in different positions and the rotating arm is at different angles. This facilitates the probe holder to reach the physiological and anatomical area located 1-2 cm away from the thyroid cartilage, using the thyroid cartilage as a reference point in the midline of the neck, and ensures that the probe holder provides similar neck pressure to patients with different neck circumferences.

[0007] Preferably, a second elastic body is provided at the connection between the horizontal arm and the probe holder. This second elastic body allows the inner side of the probe holder to rotate towards the horizontal arm. The second elastic body is a torsion spring, which enables the probe holder to adaptively conform to its contour. Since the horizontal arm's posture is fixed, the elasticity of the second elastic body determines the pressure exerted by the probe holder on the patient's neck, ensuring minimal pressure fluctuations, proper contact between the probe holder and the neck, and uniform image quality.

[0008] Preferably, the horizontal arm has an observation slot extending along its direction, a level is mounted on the top surface of the horizontal arm, and a recess is provided on the bottom surface of the horizontal arm corresponding to the level. The observation slot facilitates the examiner's observation of the characteristics of the carotid artery and jugular vein on the other side, determining whether jugular vein distension is present; the level ensures standardized examination sections and allows the probe holder to reach the physiological and anatomical area located 1-2 cm from the thyroid cartilage; the recessed structure on the bottom surface of the horizontal arm indicates the location of the thyroid cartilage along the midline of the neck, while avoiding pressure on the Adam's apple in male patients.

[0009] Preferably, the slide rail is equipped with an adjusting screw connected to the threaded screw of the first slider, allowing the first slider to reciprocate along the extension direction of the adjusting screw. The threaded drive improves the position adjustment accuracy of the first slider. Furthermore, the neck circumference can be marked as a scale on the adjusting screw, allowing adjustment based on the patient's neck circumference, thus improving operational standardization and reducing the possibility of incorrect probe bracket positioning due to an incorrect first slider position.

[0010] Preferably, one end of the probe holder is hinged to one end of the horizontal arm, and the inner surface of the probe holder is curved to conform to the shape of the neck. A first through groove is provided in the middle of the probe holder. The curved inner surface of the probe holder improves the comfort of the neck fit. Furthermore, the inner surface of the probe holder can be covered with an elastomer, such as a medical silicone pad, to prevent the probe holder from slipping during the examination and to improve the comfort of patients with less neck fat and loose skin, as well as reduce probe suspension and improve the success rate of image acquisition. The first through groove provides sliding space for the probe, making it easy for the examining physician to adjust the specific position of the probe according to different individuals and to adapt to different probe sizes.

[0011] Preferably, the first channel is provided with a second slider that can slide along the inside of the first channel, and the second slider can rotate around its own axis. The middle part of the second slider has a second channel extending in the same direction as the first channel. The second slider is used to install an ultrasound probe. The ultrasound probe is fixed by clamping the second slider, and the sliding of the second slider in the first channel retains the function of allowing the examining physician to adjust the specific position of the probe according to different individuals. The second slider can rotate around its axis to realize the circumferential rotation of the ultrasound probe, enabling the location of the short axis section of the carotid artery, the observation of the long axis section of the carotid artery by rotating it 90° in situ, or the assessment of the ulcer depth of the carotid artery plaque ulcer type by rotating it 45° in situ.

[0012] Preferably, the probe holder has a fan-shaped annular fixing hole on its side wall. The probe holder includes a fixing member that can clamp and fix the second slider through the fan-shaped annular fixing hole. The combination of the fan-shaped annular fixing hole and the fixing member ensures the stability of the position and angle of the second slider after adjustment. The fixing member clamps and fixes the second slider, replacing the examining physician in maintaining the position of the ultrasound probe, which facilitates the examining physician in performing operations such as focusing, grayscale and color Doppler gain, and pulse repetition frequency on the ultrasound probe image.

[0013] Preferably, one end of the support portion extends to the slide rail portion, the top surface of the support portion is curved, and the end of the top surface of the support portion closer to the slide rail portion is lower than the end farther from the slide rail portion.

[0014] This invention offers the following advantages: it facilitates locating the ultrasound examination site of the carotid artery and fixes the carotid ultrasound probe; it avoids the need to lift or move the patient, preventing head movement during the examination; it enables preliminary localization of the physiological and anatomical region, improving the efficiency of the examining physician in locating the carotid artery; the pressing device only engages on one side of the neck from the opposite side, preventing the probe holder from dislodging due to neck movements caused by the patient's breathing and swallowing during the examination, and avoiding increased pressure in the carotid artery that could lead to vagal nerve excitation and reduced cardiac output, thus affecting the examination; the ultrasound probe can rotate circumferentially and be fixed, enabling the location of the short-axis section of the carotid artery, in-situ rotation of 90° to observe the long-axis section of the carotid artery, or in-situ rotation of 45° to assess the ulcer depth of carotid plaque ulceration. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the sliding rail mechanical fixation frame for a carotid artery blood flow monitoring probe.

[0017] Figure 2 This is a front view of the sliding mechanical fixation frame for the carotid artery blood flow monitoring probe.

[0018] Figure 3 This is a magnified view of a sliding mechanical fixation device for a carotid artery blood flow monitoring probe.

[0019] Figure 4 A cross-sectional view of the sliding rail mechanical fixation frame for a carotid artery blood flow monitoring probe.

[0020] Figure 5 This is a rear view of the sliding rail mechanical fixation frame for a carotid artery blood flow monitoring probe.

[0021] Figure 6 This is a magnified view of a portion of the probe holder.

[0022] Figure 7 This is a schematic diagram of the structure of the present invention when it is fitted with the neck.

[0023] Legend: 1 Support part; 2 Slide rail part; 21 Adjusting screw; 22 Arc-shaped part; 23 First slider; 3 Fixed part; 31 Rotating arm; 32 Horizontal arm; 33 Level; 34 Observation slot; 35 Recessed part; 4 Monitoring part; 41 Probe bracket; 42 First through slot; 43 Fixing component; 44 Second slider; 45 Second through slot; 5 Carotid artery; 6 Jugular vein. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1

[0026] Combination Figure 1 and Figure 2 As shown, the carotid artery blood flow monitoring probe slide rail mechanical fixation frame includes a support device and a pressing device. The support device includes a slide rail portion 2 and a support portion 1 that cooperates with the neck. The extension direction of the slide rail portion 2 is collinear with the extension direction of the support portion 1. The pressing device includes a fixing portion 3 and a monitoring portion 4. The fixing portion 3 is located at one end of the pressing device and is slidably connected to the slide rail portion 2. The monitoring portion of the pressing device includes a probe bracket 41 and a horizontal arm 32 that can cross the midline of the neck. The probe bracket 41 is located at the end of the horizontal arm 32 and the other end of the pressing device. One end of the extension direction of the support portion 1 is the slide rail portion 2. The top surface of the support portion 1 is curved, and the end of the top surface of the support portion 1 closer to the slide rail portion 2 is lower than the end farther away from the slide rail portion 2.

[0027] The support component 1 conforms to the neck via its curved surface, providing stable support for the patient's head and preventing head movement during the examination. Simultaneously, the support device can be inserted under the patient's neck, and the examination can be performed by rotating and locking the pressure device, eliminating the need to lift or move the patient. The support device and the pressure device work together to ensure the probe remains close to the patient's neck, replacing manual handling and facilitating adjustments to the ultrasound image by the examining physician. The horizontal arm 32 crosses the midline of the neck, allowing the probe holder 41 to extend from the thyroid cartilage towards the examining physician. This allows the probe holder 41 to reach the physiological and anatomical region located 1-2 cm away from the thyroid cartilage, using the thyroid cartilage as a reference point. Initial localization of the physiological and anatomical region is achieved by locking the patient's neck from the opposite side, improving the efficiency of locating the carotid artery 5. Furthermore, because the locking process passes through the thyroid cartilage, the neck movements caused by the patient's breathing and swallowing during the examination will not cause the probe holder 41 to dislodge. The pressure device applies pressure only to one side of the neck, preventing increased pressure on the carotid artery 5, which could lead to vagal nerve excitation and reduced cardiac output, affecting the examination.

[0028] like Figure 2 As shown, the fixed part 3 includes a rotating arm 31 connected to a first slider 23 connected to a slide rail part 2. The first slider 23 has arc-shaped portions 22 on both sides. One end of the rotating arm 31 is hinged to a horizontal arm 32, and the other end of the rotating arm 31 is slidably connected to the arc-shaped portion 22 of the first slider 23. The arc-shaped portion 22 provides a range of rotation for the rotating arm 31, adapting to patients with different neck circumferences in conjunction with the slider of the slide rail part 2, and maintaining the horizontal position of the horizontal arm 32 to ensure that the probe holder 41 provides similar neck pressure to patients with different neck circumferences.

[0029] like Figure 4 As shown, a first elastic body is provided at the connection between the horizontal arm 32 and the rotating arm 31, which can reduce the angle between the horizontal arm 32 and the rotating arm 31. A second elastic body is provided at the connection between the horizontal arm 32 and the probe bracket 41, which can cause the inner side of the probe bracket 41 to rotate towards the horizontal arm 32.

[0030] The first elastic element between the horizontal arm 32 and the rotating arm 31 is a torsion spring, which controls the angle between the horizontal arm 32 and the rotating arm 31. This ensures that the horizontal arm 32 remains horizontal and tangent to the apex of the patient's neck even when the slider is in different positions and the rotating arm 31 is at different angles. This allows the probe holder 41 to reach the physiological and anatomical region located 1-2 cm away from the thyroid cartilage, using the thyroid cartilage as a reference point, and ensures that the probe holder 41 provides similar neck pressure to patients with different neck circumferences. The second elastic element between the horizontal arm 32 and the probe holder 41 is also a torsion spring. This second elastic element enables the probe holder 41 to adaptively conform to its contour. Since the posture of the horizontal arm 32 is fixed, the elasticity of the second elastic element determines the pressure of the probe holder 41 on the patient's neck, ensuring that the pressure fluctuation of the probe holder 41 is small, the probe holder 41 conforms to the neck, and the image remains uniform.

[0031] Combination Figure 4 and Figure 7 As shown, the horizontal arm 32 is provided with an observation slot 34 extending along the extension direction of the horizontal arm 32. A level 33 is provided on the top surface of the horizontal arm 32, and a recess 35 is provided on the bottom surface of the horizontal arm 32 at the corresponding position of the level 33. The observation slot 34 facilitates the physician's observation of the characteristics of the carotid artery 5 and jugular vein 6 on the other side, and determines whether there is jugular vein 6 distension. In some embodiments, the observation slot 34 may be provided with a lens for magnification and a light source along the inner edge of the observation slot 34, which facilitates the physician's observation of the characteristics of the carotid artery and jugular vein on the other side. The level 33 ensures the standardization of the examination section and that the probe bracket 41 can reach the physiological anatomical area located 1-2 cm away from the thyroid cartilage. The recess 35 structure on the bottom surface of the horizontal arm 32 indicates the position of the thyroid cartilage on the midline of the neck, while avoiding pressure on the Adam's apple of male patients. In some embodiments, a laser indicator is provided in the recess on the bottom surface of the horizontal arm 32. The laser beam is projected perpendicular to the extension direction of the horizontal arm to indicate the midline of the neck, and the laser switch is integrated into the side of the horizontal arm. By using laser visualization, the current method addresses the shortcomings of mechanical methods that rely on recessed areas to locate the thyroid cartilage along the midline of the neck. These methods are characterized by low accuracy and dependence on the surgeon's technique. Traditional positioning methods depend on the surgeon's palpation of the thyroid cartilage, and during horizontal arm clasping, inaccurate palpation and visual judgment can inevitably lead to slight displacement of the probe support. The laser pointer projects a spot of light directly onto the thyroid cartilage, clearly indicating the clasping position and reducing positioning time.

[0032] Combination Figure 1 and Figure 4As shown, the slide rail portion 2 is provided with an adjusting screw 21 connected to a threaded screw of the first slider 23, allowing the first slider 23 to reciprocate along the extension direction of the adjusting screw 21. The threaded drive improves the position adjustment accuracy of the first slider 23. In some embodiments, a servo motor is provided inside the first slider 23, and the top surface of the first slider 23 serves as the operation panel for the servo motor. The servo motor is powered by the adjusting screw, thereby adjusting the direction and distance of movement of the first slider 23, or locking the adjusting screw. When the patient coughs or moves, the first slider is prone to slight displacement, causing the probe to deviate from the target anatomical position. The electromagnetic braking of the servo motor can provide a large locking force, increasing the rotational resistance torque of the screw. In other embodiments, the neck circumference can be marked as a scale on the adjusting screw 21, allowing adjustment according to the patient's neck circumference, improving operational standardization and reducing the possibility of incorrect probe bracket 41 position caused by incorrect first slider 23 position.

[0033] Combination Figure 3 and Figure 5 As shown, one end of the probe holder 41 is hinged to one end of the horizontal arm 32. The inner surface of the probe holder 41 is curved to fit the shape of the neck, and a first through groove 42 is provided in the middle of the probe holder 41. The curved inner surface of the probe holder 41 improves the comfort of neck fit. Furthermore, the inner surface of the probe holder 41 can be covered with an elastomer, such as a medical silicone pad, to prevent the probe holder 41 from slipping during the examination and to improve the comfort of patients with less neck fat and loose skin, as well as reduce probe suspension and improve the success rate of image acquisition. The first through groove 42 provides sliding space for the probe, making it easy for the examining physician to adjust the specific position of the probe according to different individuals and to adapt to different probe sizes.

[0034] like Figure 5 As shown, a second slider 45 is provided within the first through groove 42, which can slide along the inside of the first through groove 42. The second slider 45 can rotate around its own axis, and a second through groove with the same extending direction as the first through groove 42 is provided in the middle of the second slider 45. The second slider 45 is used to install an ultrasound probe. The ultrasound probe is fixed by clamping the second slider 45, and the second slider 45 slides within the first through groove 42, retaining the function of allowing the examining physician to adjust the specific position of the probe according to different individuals. The second slider 45 can rotate around its axis to achieve circumferential rotation of the ultrasound probe, enabling the location of the short axis section of the carotid artery 5, observation of the long axis section of the carotid artery 5 by rotating it 90° in situ, or assessment of the ulcer depth of the plaque ulcer type of the carotid artery 5 by rotating it 45° in situ.

[0035] In some embodiments, an annular angle scale is added to the outer wall of the second slider 45, and a metal pointer is provided at the corresponding position of the probe holder 41 for reading. In existing ultrasound examinations, the rotation angle of the ultrasound probe is determined solely by the examiner's experience and ultrasound images, and plaque progression is assessed based on this experience. Since the consistency of the probe rotation angle affects the calculation of the annual plaque volume change rate, the above setting allows for precise reproduction of the same ultrasound examination angle at different times for the same patient, thereby improving the accuracy of plaque progression assessment. Furthermore, when observing ulcerative plaques, it is necessary to adjust the 45° oblique section to assess ulcer depth; with the scale indication, the 45° oblique section can be adjusted more accurately.

[0036] Combination Figure 5 and Figure 6 As shown, the probe holder 41 has a fan-shaped annular fixing hole on its side wall. The probe holder 41 includes a fixing member 43, which can clamp and fix the second slider 45 through the fan-shaped annular fixing hole. The combination of the fan-shaped annular fixing hole and the fixing member 43 ensures the stability of the position and angle of the second slider 45 after adjustment. The fixing member 43 clamps and fixes the second slider 45, replacing the examiner in maintaining the position of the ultrasound probe, which facilitates the examiner in performing operations such as focusing, grayscale and color Doppler gain, and pulse repetition frequency on the ultrasound probe image.

[0037] This invention offers the following advantages: it facilitates locating the ultrasound detection position of the carotid artery 5 and fixes the ultrasound probe for the carotid artery 5; it avoids the need to lift or move the patient, preventing head movement during the examination; it completes the preliminary localization of the physiological and anatomical region, improving the efficiency of the examining physician in locating the carotid artery 5; the pressing device only engages on one side of the neck from the opposite side, preventing neck movements caused by the patient's breathing and swallowing during the examination from causing the probe bracket 41 to fall off, and avoiding increased pressure on the carotid artery 5, which could lead to vagal nerve excitation and reduced cardiac output, affecting the examination; the ultrasound probe can rotate and be fixed circumferentially, enabling the location of the short-axis section of the carotid artery 5, observation of the long-axis section of the carotid artery 5 by rotating it 90° in situ, or assessment of the ulcer depth of the plaque ulcer type of the carotid artery 5 by rotating it 45° in situ.

[0038] The above embodiments and / or implementation methods are merely illustrative of preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art may make some modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but these should still be regarded as the technology or embodiments that are substantially the same as the present invention.

Claims

1. A mechanical fixing frame for carotid blood flow monitoring probe sliding rail, comprising a supporting device and a pressing device, characterized in that, The support device includes a slide rail part (2) and a support part (1) that cooperates with the neck. The extension direction of the slide rail part (2) is collinear with the extension direction of the support part (1). The pressing device includes a fixing part (3) and a monitoring part (4). The fixing part (3) is located at one end of the pressing device and is slidably connected to the slide rail part (2). The detection part of the pressing device includes a probe bracket (41) and a horizontal arm (32) that can cross the midline of the neck. The probe bracket (41) is located at the end of the horizontal arm (32) and the other end of the pressing device. The fixed part (3) includes a first slider (23) connected to the rotating arm (31) and the slide rail part (2). The first slider (23) has arc-shaped parts (22) on both sides. One end of the rotating arm (31) is hinged to the horizontal arm (32), and the other end of the rotating arm (31) is slidably connected to the arc-shaped part (22) of the first slider (23). A first elastic body is provided at the connection between the horizontal arm (32) and the rotating arm (31). The first elastic body can reduce the angle between the horizontal arm (32) and the rotating arm (31) and control the angle between the horizontal arm (32) and the rotating arm (31) so that the horizontal arm (32) remains horizontal and tangent to the vertex of the patient's neck under different positions of the slider and different angles of the rotating arm (31). A second elastic body is provided at the connection between the horizontal arm (32) and the probe bracket (41). The second elastic body can rotate the inner side of the probe bracket (41) towards the horizontal arm (32). The horizontal arm (32) is provided with An observation slot (34) extends along the direction of the horizontal arm (32). A level (33) is provided on the top surface of the horizontal arm (32). A recess (35) is provided on the bottom surface of the horizontal arm (32) at the corresponding position of the level (33). The recess (35) indicates the position of the thyroid cartilage on the midline of the neck, while avoiding pressure on the Adam's apple of male patients. One end of the probe bracket (41) is hinged to one end of the horizontal arm (32). The inner side of the probe bracket (41) is curved to fit the shape of the neck. A first through slot (42) is provided in the middle of the probe bracket (41). A second slider (44) is provided in the first through slot (42) and can slide along the inside of the first through slot (42). The second slider (44) can rotate around its own axis. A second through slot (45) with the same direction of extension as the first through slot (42) is provided in the middle of the second slider (44). The second slider (44) is used to install the ultrasonic probe.

2. The mechanical fixation frame for a carotid flow probe slide rail according to claim 1, wherein The slide rail part (2) is provided with an adjusting screw (21) connected to the threaded screw of the first slider (23), and the first slider (23) can reciprocate along the extension direction of the adjusting screw (21).

3. The mechanical fixation frame for a carotid flow probe slide rail according to claim 1, wherein The probe bracket (41) has a fan-shaped annular fixing hole on its side wall. The probe bracket (41) includes a fixing member (43), which can clamp and fix the second slider (44) through the fan-shaped annular fixing hole.

4. The mechanical fixation frame for a carotid flow probe slide rail according to claim 1, wherein One end of the support part (1) is the slide rail part (2) in the extension direction. The top surface of the support part (1) is a curved surface. The end of the top surface of the support part (1) near the slide rail part (2) is lower than the end away from the slide rail part (2).

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