Transcranial Doppler examination head frame and examination equipment

Abstract

The invention relates to a transcranial Doppler examination head frame and examination equipment, and belongs to the technical field of medical instruments. In order to adjust the size of the examination head frame according to the head shape of a patient and facilitate wearing of the patient, the examination head frame comprises a first fixing ring, a second fixing ring, an adjusting sleeve and an adjusting piece, the first fixing ring is used for abutting against the forehead, the second fixing ring is arranged outside the first fixing ring in a sleeving mode and used for being connected with a probe and abutting against the head top, and the adjusting sleeve is arranged on the first fixing ring and used for being connected with the probe. The supporting part is used for abutting against the pillow part and is provided with a containing cavity, and the two free ends are arranged in the containing cavity; the adjusting piece is arranged in the containing cavity, connected with the two free ends and used for adjusting the length of the overlapping area of the two free ends in the containing cavity. According to the examination head frame, the wearing stability and comfort of the examination head frame can be improved, the probability of looseness of the examination head frame in the examination process is reduced, and the accuracy of examination results is improved.

Description

Technical Field

[0001] This invention relates to a transcranial Doppler ultrasound examination head frame and examination equipment, belonging to the field of medical device technology. Background Technology

[0002] A transcranial Doppler (TCD) examination head frame is a device used to fix and assist in positioning the probe during a TCD examination. During the examination, the patient must wear the head frame while lying supine or lateral on the examination bed, keeping their head still to minimize interference with blood flow signals. However, due to structural limitations of the head frame, wearing and adjusting its size is difficult, making it challenging to achieve a proper fit to the patient's head. This can easily result in the head frame being too loose or too tight. A head frame that is too loose can lead to unstable or lost signals, while a head frame that is too tight can cause patient discomfort, affecting the stability and comfort of the head frame and the accuracy of the examination results.

[0003] For example, a transcranial Doppler ultrasound probe holder with good fixation, disclosed in patent publication number CN212415774U and announcement date 20210129, includes an arc-shaped component suitable for securing to the top of the patient's head, a left ear sleeve suitable for securing to the patient's left ear, a right ear sleeve suitable for securing to the patient's right ear, an elastic band suitable for securing to the patient's chin, and a fixing frame for fixing the transcranial Doppler ultrasound probe; the two lower ends of the arc-shaped component are connected to the upper ends of the left and right ear sleeves respectively; the two upper ends of the elastic band are connected to the lower ends of the left and right ear sleeves respectively; the fixing frame is installed on the left or right ear sleeve to fix the probe.

[0004] In view of the shortcomings of the existing technology, a transcranial Doppler ultrasound head frame and examination device are designed to overcome the shortcomings of the existing technology. The structure of the head frame is improved so that the size of the head frame can be adjusted according to the patient's head shape, reducing the probability of the head frame shaking during the examination, improving the wearing stability and comfort of the head frame, and improving the accuracy of the examination results. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, such as inconvenience in wearing the examination head frame, difficulty in adjusting the size of the examination head frame, and low wearing stability and comfort, this application provides a transcranial Doppler examination head frame and examination device. The aim is to improve the structure of the examination head frame so that the size of the examination head frame can be adjusted according to the patient's head shape, reduce the probability of the examination head frame shaking during the examination, improve the wearing stability and comfort of the examination head frame, and improve the accuracy of the examination results.

[0006] An embodiment of the first aspect of this application provides a transcranial Doppler ultrasound examination head frame, hereinafter referred to as the examination head frame. The examination head frame is used to fix a probe and includes a first fixing ring, a second fixing ring, an adjusting sleeve, and an adjusting member. The first fixing ring is used to abut against the forehead and has two free ends. The second fixing ring is sleeved outside the first fixing ring and is used to connect with the probe and abut against the top of the head. The adjusting sleeve is disposed on the first fixing ring and is used to abut against the occipital region and has a receiving cavity, in which the two free ends are placed. The adjusting member is disposed in the receiving cavity and connected to the two free ends for adjusting the length of the overlapping area of ​​the two free ends within the receiving cavity.

[0007] In this embodiment, when the patient wears the examination head frame, the first fixing ring is fixed to the patient's forehead, and the second fixing ring is fixed to the top of the patient's head. The first and second fixing rings secure the patient's head from two directions, simultaneously covering the front, back, left, right, and top of the patient's head. This reduces the probability of the examination head frame shaking during the examination and improves its wearing stability. Adjusting the length of the overlapping area of ​​the two free ends within the receiving cavity and adjusting the size of the area on the first fixing ring used to fix the head allows the size of the examination head frame to be adjusted according to the patient's head shape or circumference. This enables the examination head frame to be tightened or loosened, improving its applicability, wearing stability, and wearing comfort. It also reduces the probability of the examination head frame shaking during the examination, thereby improving the connection stability of the probe during the examination, reducing errors caused by probe shaking or angle changes, improving signal acquisition stability, and increasing the accuracy of the examination results.

[0008] In some embodiments, the adjusting member includes a rotating rod, an adjusting block, and a gear. The rotating rod passes through the adjusting sleeve and extends radially along the first fixed ring. The adjusting block is embedded in the adjusting sleeve on the side away from the central axis of the first fixed ring and is fixedly connected to the rotating rod. An adjusting port is provided on the side of the adjusting block away from the rotating rod, and the adjusting block is driven to rotate through the adjusting port. The gear is disposed in the receiving cavity and is fixedly connected to the rotating rod. Both free ends of the first fixed ring are provided with racks that mesh with the gear.

[0009] In some embodiments, the examination head frame further includes a first buffer member disposed on the inner wall of a first fixing ring, the first buffer member being used to abut against the forehead.

[0010] In some embodiments, the first buffer includes a first airbag and a second airbag, the second airbag is disposed on both sides of the first airbag, a connecting pipe is provided between the first airbag and the second airbag, and the volume of the first airbag is larger than the volume of the second airbag.

[0011] In some embodiments, the second fixing ring is arc-shaped, and both ends of the second fixing ring are connected to the first fixing ring via a rotating shaft.

[0012] In some embodiments, the inspection head frame further includes an adjustment assembly disposed at the apex of the second fixed ring, comprising an arc-shaped plate, a telescopic rod, a slide groove, a sliding member, and a third airbag. The arc-shaped plate is disposed on the inner wall of the second fixed ring, and the extension direction of the chord formed by the two ends of the arc-shaped plate is perpendicular to the extension direction of the rotation axis of the second fixed ring. The telescopic rod is located on the side of the arc-shaped plate away from the second fixed ring. The slide groove is disposed on the arc-shaped plate and located on both sides of the telescopic rod, extending circumferentially along the arc-shaped plate. The sliding member is disposed in the slide groove and slidably connected to the slide groove. The telescopic rod is configured to telescopically move in a direction close to the second fixed ring, causing the two sliding members to move in opposite directions, or to telescopically move in a direction away from the second fixed ring, causing the two sliding members to move in opposite directions. The third airbag is disposed on both sides of the telescopic rod and located at the end of the slide groove away from the telescopic rod.

[0013] In some embodiments, the adjusting assembly further includes a through groove, a movable block, a first connecting rod, and a second connecting rod. The through groove is disposed on the arc-shaped plate and located on both sides of the telescopic rod, and extends circumferentially along the arc-shaped plate. Slots are formed on the adjacent sides of the through groove, and the openings of the two slots face each other to form a sliding groove. The movable block is disposed on the side of the second fixing ring away from the arc-shaped plate. One end of the first connecting rod passes through the through groove and is hinged to the sliding member, and the other end is hinged to the end of the telescopic rod away from the arc-shaped plate. One end of the second connecting rod passes through the through groove and is hinged to the sliding member, and the other end is hinged to the movable block.

[0014] In some embodiments, the inspection head frame further includes a connecting assembly, which includes a connecting post, a movable plate, and an elastic element. The connecting post is disposed on the outer wall of the second fixing ring and located on both sides of the adjusting assembly. The movable plate is connected to the connecting post and is provided with connection points for connecting to the probe. The elastic element is sleeved on the outer wall of the connecting post and is located between the movable plate and the second fixing ring.

[0015] In some embodiments, the inspection head frame further includes a third buffer disposed on the inner wall of the second fixing ring and located on both sides of the adjustment assembly.

[0016] In some embodiments, the examination head frame further includes a third fixing ring, which is sleeved outside the second fixing ring and used to abut against the chin; the third fixing ring is arc-shaped, and both ends of the third fixing ring are connected to the second fixing ring through a pivot.

[0017] In some embodiments, the examination head frame further includes a fourth buffer disposed on the inner wall of the third fixing ring for abutting against the chin.

[0018] An embodiment of the second aspect of this application provides a transcranial Doppler examination device, including the transcranial Doppler examination head frame described in any of the above embodiments.

[0019] In this embodiment, the examination device includes an examination head frame. When the patient wears the examination head frame, a first fixing ring is fixed to the patient's forehead, and a second fixing ring is fixed to the top of the patient's head. The first and second fixing rings secure the patient's head from two directions, simultaneously covering the front, back, left, right, and top of the patient's head. This reduces the probability of the examination head frame shaking during the examination and improves its wearing stability. By adjusting the length of the overlapping area of ​​the two free ends within the receiving cavity and adjusting the size of the area on the first fixing ring used to fix the head, the size of the examination head frame can be adjusted according to the patient's head shape or circumference. This allows the examination head frame to be tightened or loosened, improving its applicability, wearing stability, and wearing comfort. It also reduces the probability of the examination head frame shaking during the examination, thereby improving the stability of the probe during the examination, reducing errors caused by probe shaking or angle changes, improving the stability of signal acquisition, and improving the accuracy of the examination results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the inspection head frame in one embodiment of this application.

[0021] Figure 2 This is a front view of the inspection head frame in one embodiment of this application.

[0022] Figure 3 for Figure 2 The original cross-sectional view along the AA direction.

[0023] Figure 4 This is a schematic diagram showing the connection between the first fixing ring and the second fixing ring in one embodiment of this application.

[0024] Figure 5 for Figure 4 A cross-sectional view along the BB direction.

[0025] Figure 6 This is a bottom view showing the connection between the first fixing ring and the second fixing ring in one embodiment of this application.

[0026] Figure 7 This is a schematic diagram of the structure of the first fixing ring in one embodiment of this application.

[0027] Figure 8 This is a cross-sectional view of the adjusting sleeve in one embodiment of this application.

[0028] Figure 9 This is a cross-sectional view of the first buffer element in one embodiment of this application.

[0029] Figure 10 This is a schematic diagram of the structure of the second fixing ring in one embodiment of this application.

[0030] Figure 11 for Figure 3 A magnified view of region A in the middle.

[0031] Figure 12 This is a schematic diagram showing the connection between the arc-shaped plate and the telescopic rod in one embodiment of this application.

[0032] Figure 13 This is a schematic diagram of the structure of the movable plate in one embodiment of this application.

[0033] Figure 14 This is a schematic diagram of the structure of the third fixing ring in one embodiment of this application.

[0034] The labels in the attached diagram are as follows: 1-First fixing ring, 11-Rack, 12-Limiting groove, 2-Second fixing ring, 21-Accommodating hole, 22-Accommodating groove, 3-Adjusting sleeve, 31-Accommodating cavity, 32-Adjusting component, 321-Rotating rod, 322-Adjusting block, 3220-Adjusting port, 323-Gear, 4-First buffer component, 41-First airbag, 42-Second airbag, 43-Connecting pipe, 5-Rotating shaft, 6-Adjusting assembly, 61-Arc plate, 62-Telescopic rod, 63- - Through groove, 64- Slide groove, 65- Sliding component, 66- Moving block, 67- First connecting rod, 68- Second connecting rod, 69- Third airbag, 691- First section, 692- Second section, 7- Connecting assembly, 71- Connecting column, 72- Movable plate, 720- Connecting point, 721- Limiting hole, 73- Elastic component, 8- Third buffer component, 81- Connecting pipe, 9- Third fixing ring, 10- Fourth buffer component, 101- Fourth airbag, 102- Fifth airbag. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0038] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0039] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0040] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0041] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0042] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0043] This invention provides a transcranial Doppler ultrasound examination head frame and examination device, which allows the size of the examination head frame to be adjusted according to the patient's head shape, making it easier for the patient to wear, improving the wearing stability and comfort of the examination head frame, reducing the probability of the examination head frame becoming loose during the examination, and improving the accuracy of the examination results.

[0044] An embodiment of the first aspect of this application provides a transcranial Doppler ultrasound examination head frame, hereinafter referred to as the examination head frame, which is used to fix the probe, such as... Figures 1 to 6As shown, the examination head frame includes a first fixing ring 1, a second fixing ring 2, an adjusting sleeve 3, and an adjusting member 32. The first fixing ring 1 is used to abut against the forehead and has two free ends. The second fixing ring 2 is sleeved on the outside of the first fixing ring 1 and is used to connect with the probe and abut against the top of the head. The adjusting sleeve 3 is set on the first fixing ring 1 and is used to abut against the occipital region and has a receiving cavity 31, in which the two free ends are placed. The adjusting member 32 is set in the receiving cavity 31 and connected to the two free ends, and is used to adjust the length of the overlapping area of ​​the two free ends in the receiving cavity 31.

[0045] In the embodiments of this application, such as Figures 1 to 6 As shown, when the patient wears the examination head frame, the first fixing ring 1 is fixed to the patient's forehead, and the second fixing ring 2 is fixed to the top of the patient's head. The patient's head is fixed from two directions by the first fixing ring 1 and the second fixing ring 2. At this time, the patient's head is wrapped from the front, back, left, right and top at the same time, which can reduce the probability of the examination head frame shaking during the examination and improve the wearing stability of the examination head frame.

[0046] In this embodiment, the length of the overlapping area of ​​the two free ends in the receiving cavity 31 is adjusted by the adjusting member 32, and the size of the area on the first fixing ring 1 used to fix the head is adjusted so that the size of the examination head frame can be adjusted according to the patient's head shape or head circumference. This allows the examination head frame to be tightened or opened, which can improve the applicability, wearing stability and wearing comfort of the examination head frame, reduce the probability of the examination head frame shaking during the examination, thereby improving the connection stability of the probe during the examination, reducing the error caused by probe shaking or angle change, improving the stability of signal acquisition and improving the accuracy of the examination results.

[0047] In this embodiment, the longer the overlapping area of ​​the two free ends within the receiving cavity 31, the shorter the length of the section of the first fixing ring 1 used to fix it to the patient's forehead, and the smaller the fixable area of ​​the first fixing ring 1, so as to facilitate wearing and fixing for patients with smaller head circumferences; the shorter the overlapping area of ​​the two free ends within the receiving cavity 31, the longer the length of the section of the first fixing ring 1 used to fix it to the patient's forehead, and the larger the fixable area of ​​the first fixing ring 1, so as to facilitate wearing and fixing for patients with larger head circumferences.

[0048] In this embodiment, the adjusting member 32 adjusts the two free ends simultaneously, which can improve the consistency of the area adjustment on both sides of the first fixed ring 1, make the deformation of the first fixed ring 1 during the adjustment process more even, and improve the reliability of the first fixed ring 1.

[0049] In some embodiments, the second fixing ring 2 used to fix the probe is made of an ultrasonically transparent material, such as polyester (PET), which can enhance the penetration of the acoustic window, further improve the accuracy of the examination results, and reduce the probability of detection difficulties due to factors such as thickened skull in patients. The adjustment sleeve 3 is made of a flexible material or its surface is covered with a flexible material to cushion the pressure on the patient's head during the examination, further improving the wearing comfort of the examination head frame.

[0050] In some embodiments, such as Figure 7 As shown, the two free ends are provided with limiting grooves 12 for connecting the adjusting sleeve 3, so that the two free ends can slide in the adjusting sleeve 3 and limit the maximum overlap length of the two free ends in the receiving cavity 31, thereby limiting the minimum size of the first fixing ring 1, preventing the first fixing ring 1 from being damaged due to excessive overlap length, improving the reliability of the first fixing ring 1, and improving the reliability of the inspection head frame.

[0051] In some embodiments, such as Figure 7 and Figure 8 As shown, the adjusting component 32 includes a rotating rod 321, an adjusting block 322, and a gear 323. The rotating rod 321 passes through the adjusting sleeve 3 and extends radially along the first fixed ring 1. The adjusting block 322 is embedded in the adjusting sleeve 3 on the side away from the central axis of the first fixed ring 1 and is fixedly connected to the rotating rod 321. The adjusting block 322 has an adjusting port 3220 on the side away from the rotating rod 321, through which the adjusting block 322 is driven to rotate. The gear 323 is disposed in the receiving cavity 31 and is fixedly connected to the rotating rod 321. Both free ends of the first fixed ring 1 are provided with racks 11 that mesh with the gear 323. The racks 11 pass through the two sides of the adjusting sleeve 3 and enter the receiving cavity 31.

[0052] In the embodiments of this application, such as Figure 7 and Figure 8 As shown, the rotation of the adjusting block 322 drives the rotating rod 321 to rotate, and the rotation of the rotating rod 321 drives the gear 323 connected to it to rotate. By controlling the rotation direction and rotation angle of the gear 323, the overlap length of the racks 11 at both ends is controlled, thereby controlling the length of the overlap area at both ends. This allows the size of the examination head frame to be adjusted according to the patient's head shape or head circumference, improving the applicability, wearing stability and comfort of the examination head frame, and improving the accuracy of the examination results.

[0053] In the embodiments of this application, such as Figure 2As shown, the adjustment block 322 is embedded in the adjustment sleeve 3, and the setting of the adjustment port 3220 can avoid the adjustment block 322 exerting pressure on the head of the patient in a supine position, thereby improving the patient's comfort during the examination. The adjustment port 3220 includes, but is not limited to, hexagonal ports, trapezoidal ports, rectangular ports, and triangular ports, so that medical staff can drive the adjustment block 322 to rotate through the adjustment port 3220.

[0054] In some embodiments, such as Figure 1 , Figure 3 , Figure 5 and Figure 9 As shown, the examination head frame also includes a first buffer 4, which is disposed on the inner wall of the first fixing ring 1 and is used to abut against the forehead. When the examination head frame is tightened and fixed, the first buffer 4 can not only buffer the pressure on the patient's head and improve the wearing comfort of the examination head frame, but also fill the gap between the first fixing ring 1 and the head, reducing the probability of the examination head frame shaking during the examination and improving the wearing stability of the examination head frame. The first buffer 4 and the adjusting sleeve 3 are arranged opposite to each other. The first buffer 4 is a flexible component, and the material of the first buffer 4 includes, but is not limited to, plastic and latex.

[0055] In some embodiments, such as Figure 5 and Figure 9 As shown, the first buffer 4 includes a first airbag 41 and a second airbag 42. The second airbag 42 is disposed on both sides of the first airbag 41, and a connecting pipe 43 is provided between the first airbag 41 and the second airbag 42. The volume of the first airbag 41 is larger than the volume of the second airbag 42. The first airbag 41 can be a compression airbag. When the patient wears the examination head frame, it is in close contact with the patient's forehead. When the examination head frame is tightened, the first airbag 41 is compressed, and the gas in the first airbag 41 enters the second airbags 42 on both sides through the connecting pipe 43, causing the second airbags 42 to inflate and expand.

[0056] In this embodiment, the first airbag 41 and the second airbag 42 can not only buffer the squeezing force applied to the patient's head by the first fixing ring 1 during the examination, but also fill the gap between the first fixing ring 1 and the head together, reducing the probability of the examination head frame shaking during the examination and further improving the wearing stability of the examination head frame.

[0057] In some embodiments, such as Figures 1 to 6 As shown, the second fixing ring 2 is arc-shaped. The two ends of the second fixing ring 2 are connected to the first fixing ring 1 through the rotating shaft 5. The second fixing ring 2 can rotate relative to the first fixing ring 1 so that medical staff can adjust the position of the second fixing ring 2, improve the wearing stability and comfort of the examination head frame; it can also adjust the fixed position of the probe, thereby adjusting the detection position and improving the accuracy of the examination results.

[0058] In some embodiments, such as Figure 1 , Figure 3 , Figure 11 and Figure 12 As shown, the inspection head frame also includes an adjustment assembly 6, which is located at the apex of the second fixed ring 2. The adjustment assembly 6 includes an arc plate 61, a telescopic rod 62, a through groove 63, a sliding groove 64, a sliding member 65, a moving block 66, a first connecting rod 67, a second connecting rod 68, and a third airbag 69. The arc plate 61 is located on the inner wall of the second fixed ring 2, and the extension direction of the chord formed by the two ends of the arc plate 61 is perpendicular to the extension direction of the rotation axis of the second fixed ring 2. The telescopic rod 62 is located on the side of the arc plate 61 away from the second fixed ring 2 and is configured to move telescopically in a direction close to or away from the second fixed ring 2. The through groove 63 is located on the arc plate 61 and on both sides of the telescopic rod 62, and the through groove 63 extends circumferentially along the arc plate 61.

[0059] In the embodiments of this application, such as Figure 1 , Figure 3 and Figure 11 As shown, slots are provided on both sides of the through groove 63, and the openings of the two slots face each other to form a sliding groove 64. The sliding groove 64 is provided on both sides of the through groove 63 and extends circumferentially along the arc plate 61. The sliding member 65 is provided in the sliding groove 64 and is slidably connected to the sliding groove 64. The moving block 66 is provided on the side of the second fixed ring 2 away from the arc plate 61. One end of the first connecting rod 67 passes through the through groove 63 and is hinged to the sliding member 65, and the other end is hinged to the end of the telescopic rod 62 away from the arc plate 61. One end of the second connecting rod 68 passes through the through groove 63 and is hinged to the sliding member 65, and the other end is hinged to the moving block 66. The third airbag 69 is provided on the end of the sliding groove 64 away from the telescopic rod 62, including a first section 691 and a second section 692. The first section 691 is placed in the sliding groove 64, and the second section 692 extends out of the through groove 63 towards the side away from the second fixed ring 2. The third airbag 69 includes a compression airbag, and the slider 65 includes, but is not limited to, a slider and a roller.

[0060] In the embodiments of this application, such as Figure 11As shown, after the patient wears the examination head frame, the telescopic rod 62 is subjected to upward pressure from the patient's head and retracts and moves along the direction close to the arc plate 61. The upward retraction of the telescopic rod 62, in conjunction with the first connecting rod 67, the second connecting rod 68, and the moving block 66, drives the sliding member 65 to move within the slide groove 64 in a direction away from the telescopic rod 62. When the sliding member 65 reaches the end of the slide groove 64, it compresses the first section 691 of the third airbag 69. The gas in the first section 691 is then transferred to the second section 692 after being compressed. The second section 692 inflates, extends out of the through groove 63, and expands downwards, thus abutting against the top of the patient's head. The second section 692 can effectively wrap around part of the patient's head and fill the gap between the arc plate 61 and the top of the head, increasing the fit between the head area and the examination head frame, reducing the probability of the examination head frame wobbling after wearing, and improving the wearing stability of the examination head frame.

[0061] In some embodiments, such as Figure 10 and Figure 11 As shown, the second fixing ring 2 is provided with a receiving hole 21, and receiving grooves 22 are provided on both sides of the receiving hole 21. The receiving grooves 22 are used to provide moving space for the second connecting rod 68, so as to avoid the second fixing ring 2 from obstructing the movement of the second connecting rod 68. The moving block 66 is used to fix the two second connecting rods 68. When the sliding member 65 moves in the sliding groove 64 in a direction away from the telescopic rod 62, it drives the moving block 66 to move downward through the second connecting rod 68. When the second section 692 is inflated and fits against the top of the patient's head, the moving block 66 moves down a certain distance and then gets stuck in the receiving hole 21. The receiving hole 21 is used to limit the moving block 66, so as to prevent the moving block 66 from moving up and down and left and right, thereby limiting the movement of the second connecting rod 68, and further limiting the movement of the sliding member 65, the first connecting rod 67 and the telescopic rod 62, so that the adjusting component 6 maintains the current working state, the examination head frame maintains the current working state, reduces the probability of the examination head frame shaking after wearing, and improves the wearing stability of the examination head frame.

[0062] In some embodiments, such as Figure 1 , Figure 4 and Figure 13 As shown, the inspection head frame also includes a connecting assembly 7, which includes a connecting post 71, a movable plate 72, and an elastic element 73. The connecting post 71 is disposed on the outer wall of the second fixing ring 2 and located on both sides of the adjusting assembly 6; the movable plate 72 is connected to the connecting post 71, and the movable plate 72 is provided with a connection point 720 for connecting with the probe; the elastic element 73 is sleeved on the outer wall of the connecting post 71 and is located between the movable plate 72 and the second fixing ring 2.

[0063] In the embodiments of this application, such as Figure 1 and Figure 13As shown, the movable plate 72 is provided with multiple limiting holes 721. The movable plate 72 is slidably connected to the connecting column 71 through the limiting holes 721 and can rotate around the central axis of the connecting column 71. The elastic element 73 is used to limit and clamp the movable plate 72. Applying pressure to the movable plate 72 causes it to move downward and rotate. The elastic element 73 contracts under pressure. After the movable plate 72 rotates to the designated position, the pressure applied to it is removed. The elastic element 73 returns to its original position under its own elastic force and applies upward pressure to the movable plate 72 to clamp it, limiting the movement of the movable plate 72. The rotation of the movable plate 72 changes its position, causing the position of the connection point 720 located on it to change, thereby adjusting the fixed position of the probe and adjusting the detection position, which can further improve the accuracy of the inspection results.

[0064] In some embodiments, the position of the movable plate 72 can be changed by connecting it to the connecting post 71 through the limiting holes 721 at different positions, allowing the movable plate 72 to move linearly along its own extension direction. The change in the position of the movable plate 72 causes a change in the position of the connecting point 720 located thereon, thereby adjusting the fixed position of the probe and the detection position, which can further improve the accuracy of the inspection results. A ball joint block can be provided on the connecting point 720 to fix the external probe.

[0065] In some embodiments, the connecting component 7 is made of an ultrasonically transparent material, such as polyester (PET), which can enhance the permeability of the acoustic window and further improve the accuracy of the inspection results.

[0066] In some embodiments, such as Figure 1 , Figure 2 and Figure 6 As shown, the examination head frame also includes a third buffer 8, which is disposed on the inner wall of the second fixing ring 2 and located on both sides of the adjustment assembly 6. The third buffer 8 not only cushions the pressure on the patient's head during the examination, improving the wearing comfort of the examination head frame, but also fills the gap between the second fixing ring 2 and the head when the examination head frame is fixed, reducing the probability of the examination head frame shaking during the examination and improving the wearing stability of the examination head frame. The third buffer 8 is a flexible component, and its material includes, but is not limited to, plastic and latex.

[0067] In some embodiments, the same, such as Figure 2 , Figure 5 and Figure 11As shown, the telescopic rod 62 has an internal inflation chamber, and the third buffer 8 is an inflation plate. The inflation plate is located on both sides of the adjustment assembly 6, and it also has an inflation chamber. The inflation chamber of the inflation plate is connected to the inflation chamber of the telescopic rod 62 through a connecting pipe 81. After the patient wears the examination head frame, the telescopic rod 62 is subjected to upward pressure from the patient's head and contracts and moves in the direction close to the arc-shaped plate 61. The volume of the inflation chamber decreases, and the gas in the inflation chamber enters the inflation plate through the connecting pipe 81, causing the inflation plate to inflate and expand, thereby filling the gap between the second fixing ring 2 and the head. This reduces the probability of the examination head frame shaking during the examination and improves the wearing stability of the examination head frame. By setting up two inflation chambers, the volume of the inflation chamber in the inflation plate can be adaptively adjusted according to the patient's head shape, further improving the wearing stability and comfort of the examination head frame.

[0068] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 14 As shown, the examination head frame also includes a third fixing ring 9, which is fitted over the second fixing ring 2 and used to abut against the chin. The third fixing ring 9 is arc-shaped, and its two ends are connected to the second fixing ring 2 via a pivot 5. The third fixing ring 9 can rotate relative to the first fixing ring 1 and the second fixing ring 2, so that medical staff can adjust the position of the third fixing ring 9 to facilitate the patient wearing the examination head frame and improve the stability and comfort of wearing the examination head frame.

[0069] In this embodiment, the first fixing ring 1, the second fixing ring 2, and the third fixing ring 9 are connected by the same rotating shaft. The first fixing ring 1, the second fixing ring 2, and the third fixing ring 9 can be rotated and folded in the non-working state, which can reduce the volume of the inspection head frame and facilitate the handling and storage of the inspection head frame.

[0070] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 14 As shown, the examination head frame also includes a fourth buffer 10, disposed on the inner wall of the third fixing ring 9, for contact with the mandible. The fourth buffer 10 not only cushions the pressure on the patient's mandible during the examination, improving the comfort of wearing the examination head frame, but also fills the gap between the third fixing ring 9 and the mandible when the examination head frame is fixed, reducing the probability of the examination head frame wobbling during the examination and improving the stability of wearing the examination head frame. The fourth buffer 10 is a flexible component, and its material includes, but is not limited to, plastic and latex.

[0071] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 14As shown, the fourth buffer 10 includes a fourth airbag 101 and a fifth airbag 102 disposed on both sides of the fourth airbag 101, which can further reduce the probability of the examination head frame shaking during the examination and improve the wearing stability of the examination head frame.

[0072] An embodiment of the second aspect of this application provides a transcranial Doppler examination device, including the transcranial Doppler examination head frame described in any of the above embodiments.

[0073] In the embodiments of this application, such as Figures 1 to 3 As shown, when the patient wears the examination head frame, the first fixing ring 1 is fixed to the patient's forehead, and the second fixing ring 2 is fixed to the top of the patient's head. The patient's head is fixed from two directions by the first fixing ring 1 and the second fixing ring 2. At this time, the patient's head is wrapped from the front, back, left, right and top at the same time, which can reduce the probability of the examination head frame shaking during the examination and improve the wearing stability of the examination head frame.

[0074] In this embodiment, the length of the overlapping area of ​​the two free ends in the receiving cavity 31 is adjusted by the adjusting member 32, and the size of the area on the first fixing ring 1 used to fix the head is adjusted so that the size of the examination head frame can be adjusted according to the patient's head shape or head circumference. This allows the examination head frame to be tightened or opened, which can improve the applicability, wearing stability and wearing comfort of the examination head frame, reduce the probability of the examination head frame shaking during the examination, thereby improving the connection stability of the probe during the examination, reducing the error caused by probe shaking or angle change, improving the stability of signal acquisition and improving the accuracy of the examination results.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A transcranial Doppler ultrasound head frame for fixing a probe, characterized in that, include; The first fixing ring (1) is used to abut against the forehead and has two free ends; The second fixing ring (2) is sleeved outside the first fixing ring (1) and is used to connect with the probe and abut against the top of the head; Adjustment sleeve (3) is set on the first fixing ring (1) for abutting against the pillow and has a receiving cavity (31) with two free ends placed in the receiving cavity (31); An adjusting member (32) is disposed in the receiving cavity (31) and connected to the two free ends, and is used to adjust the length of the overlapping area of ​​the two free ends in the receiving cavity (31).

2. The transcranial Doppler ultrasound head frame according to claim 1, characterized in that, Adjustment element (32) includes: The rotating rod (321) is inserted into the adjusting sleeve (3) and extends radially along the first fixed ring (1); The adjusting block (322) is embedded in the adjusting sleeve (3) on the side away from the central axis of the first fixed ring (1) and is fixedly connected to the rotating rod (321). The adjusting block (322) is provided with an adjusting port (3220) on the side away from the rotating rod (321). The adjusting block (322) is driven to rotate through the adjusting port (3220). Gear (323) is disposed in the receiving cavity (31) and fixedly connected to the rotating rod (321); Both free ends of the first fixed ring (1) are provided with racks (11) that mesh with the gear (323).

3. The transcranial Doppler ultrasound head frame according to claim 1, characterized in that, It also includes a first buffer (4), which is disposed on the inner wall of the first fixing ring (1) and is used to abut against the forehead.

4. The transcranial Doppler ultrasound head frame according to claim 3, characterized in that, The first buffer (4) includes a first airbag (41) and a second airbag (42). The second airbag (42) is disposed on both sides of the first airbag (41). A connecting tube (81) (43) is provided between the first airbag (41) and the second airbag (42). The volume of the first airbag (41) is larger than the volume of the second airbag (42).

5. The transcranial Doppler ultrasound head frame according to claim 1, characterized in that, The second fixing ring (2) is arc-shaped, and the two ends of the second fixing ring (2) are connected to the first fixing ring (1) through the rotating shaft (5).

6. The transcranial Doppler ultrasound head frame according to claim 1, characterized in that, It also includes an adjustment component (6), located at the apex of the second fixed ring (2), comprising: An arc-shaped plate (61) is set on the inner wall of the second fixed ring (2). The extension direction of the chord formed by the connection of the two ends of the arc-shaped plate (61) is perpendicular to the extension direction of the rotation axis of the second fixed ring (2). The telescopic rod (62) is located on the side of the arc plate (61) away from the second fixing ring (2); The chute (64) is provided on the arc plate (61) and located on both sides of the telescopic rod (62), extending along the circumference of the arc plate (61); A sliding member (65) is disposed in the slide groove (64) and is slidably connected to the slide groove (64); The telescopic rod (62) is configured to telescopically move in a direction close to the second fixed ring (2) to cause the two sliding members (65) to move in opposite directions, or telescopically move in a direction away from the second fixed ring (2) to cause the two sliding members (65) to move in opposite directions; The third airbag (69) is located on both sides of the telescopic rod and at the end of the slide groove (64) away from the telescopic rod (62).

7. The transcranial Doppler ultrasound head frame according to claim 6, characterized in that, The adjustment components also include: A through groove (63) is provided on the arc plate (61) and located on both sides of the telescopic rod (62). The through groove (63) extends along the circumference of the arc plate (61). Slots are provided on the adjacent sides of the through groove (63), and the openings of the two slots face each other to form a sliding groove (64). The movable block (66) is located on the side of the second fixed ring (2) away from the arc plate (61); The first connecting rod (67) has one end that passes through the through groove (63) and is hinged to the sliding member (65), and the other end that is hinged to the end of the telescopic rod (62) away from the arc plate (61); The second connecting rod (68) has one end that passes through the through groove (63) and is hinged to the sliding member (65), and the other end that is hinged to the moving block (66).

8. The transcranial Doppler ultrasound head frame according to claim 6, characterized in that, It also includes a connection component (7), which includes: The connecting column (71) is set on the outer wall of the second fixing ring (2) and located on both sides of the adjusting assembly (6); The movable plate (72) is connected to the connecting column (71), and the movable plate (72) is provided with connection points (720) for connecting to the probe. The elastic element (73) is sleeved on the outer wall of the connecting column (71) and located between the movable plate (72) and the second fixed ring (2).

9. The transcranial Doppler ultrasound head frame according to claim 1, characterized in that, It also includes a third fixing ring (9), which is fitted outside the second fixing ring (2) and is used to abut against the mandible; the third fixing ring (9) is arc-shaped, and the two ends of the third fixing ring (9) are connected to the second fixing ring (2) through a rotating shaft (5).

10. A transcranial Doppler ultrasound examination device, characterized in that, The transcranial Doppler examination head frame includes any one of claims 1 to 9.

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