CN113143321B

CN113143321B - Patient limb adjusting device for ultrasound department examination

Info

Publication number: CN113143321B
Application number: CN202110557892.5A
Authority: CN
Inventors: 李涛; 郭艳杰; 马善波; 张蕊; 屈慧
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-11-22
Anticipated expiration: 2041-05-21
Also published as: CN113143321A

Abstract

The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to a patient limb adjusting device for ultrasonic examination, which comprises a seat, a support column, a support plate, an upper limb adjusting mechanism and a lower limb adjusting mechanism, wherein the seat is positioned above the support column, the lower surface of the seat is provided with a reversing groove in sliding clamping connection with a guide block rotationally clamped with one end of the support column, the two sides of the seat are respectively provided with an extending groove matched with the upper limb adjusting mechanism, one end of the seat is hinged with one end of the support plate through a hinged shaft, and the lower surface of the other end of the support plate is hinged with an adjusting plate matched with the lower limb adjusting mechanism. This patient limbs adjusting device is used in department of ultrasonography is through supporting the back with the upper arm, fixes the wrist to the orientation that deflects the skin that makes the arm expose is facing medical personnel, does not receive the influence of fixed plate when making medical personnel pass through ultrasonic instrument detection arm, makes the extension board drive the perk of low limbs and be close to medical personnel, realizes need not to remove medical personnel's position and can inspect patient's low limbs.

Description

Patient limb adjusting device for ultrasound department examination

Technical Field

The invention relates to the technical field of medical auxiliary equipment, in particular to a patient limb adjusting device for ultrasonic examination.

Background

Ultrasound medicine is a young and important branch of medical imaging, and with the adoption and increasing improvement of new ultrasound technologies, the ultrasound medicine is continuously fused with clinical departments and develops, and plays a great role in diagnosis and treatment of diseases. The diagnosis and treatment work carried out conventionally comprises two-dimensional and color Doppler ultrasonic diagnosis of abdomen, urinary system, chest cavity, small organs, soft tissues and bone joints; interventional ultrasonic diagnosis and treatment of space occupying lesion and effusion lesion; color Doppler ultrasound diagnosis of neck, extremities and visceral vessels; a new technology for non-invasive treatment of various solid tumors by high intensity focused ultrasound (ultrasonic blade, HIFU) is developed.

In the process of examining the limbs of a patient by using ultrasonic, the ultrasonic instrument is mainly used for evaluating the skin, fascia, muscles, tendons, ligaments, peripheral nerves, musculoskeletal joints and other limb parts, so that the problems existing in the limbs can be more clearly understood in the treatment process. Meanwhile, before ultrasonic examination is performed on some patients, the limbs of the patients may have uncontrollable conditions, so that the limbs need to be fixed and adjusted through an auxiliary device, and examination by medical staff is facilitated.

Most of the existing adjusting devices used in the ultrasonic examination process aiming at the limbs of the patient only have a fixing function, the patient lies on a sickbed, the limbs are fixed through the existing adjusting devices to keep the limbs in a straight state, and the adjusting devices are in the straight state through being in contact with the two sides of the limbs, so that the plates for fixing are positioned on the two sides of the limbs, when medical staff carry out ultrasonic examination on the two sides through an instrument, the limbs are usually blocked, the examination effect is influenced, and when the medical staff cannot carry out ultrasonic examination on all parts of the limbs through an instrument, the limbs are adjusted to an angle convenient for the medical staff to examine, for example, the medical staff is positioned on one side of the limbs, and the other side is inconvenient to examine; when the medical staff inspects the arms, the inner sides of the arms can be inspected only by turning the arms; the positions of the upper limbs and the lower limbs need to be changed when the examination is carried out.

Disclosure of Invention

The invention provides a patient limb adjusting device for ultrasonic examination, which is based on the technical problem that most of adjusting devices used for the limb of a patient in the existing ultrasonic examination process only have a fixing function and are inconvenient to adjust the limb according to the needs of medical staff.

The invention provides a patient limb adjusting device for ultrasonic examination, which comprises a seat, a support column, a support plate, upper limb adjusting mechanisms and lower limb adjusting mechanisms, wherein the seat is positioned above the support column, the lower surface of the seat is provided with a reversing groove in sliding clamping connection with a guide block rotationally clamped at one end of the support column, the two upper limb adjusting mechanisms are respectively positioned at two sides of the seat, the two sides of the seat are respectively provided with an extending groove matched with the upper limb adjusting mechanisms, one end of the seat is hinged with one end of the support plate through a hinged shaft, the lower surface of the other end of the support plate is hinged with an adjusting plate matched with the lower limb adjusting mechanisms, and the lower limb adjusting mechanisms are positioned below one end of the seat;

the chair supports the lower limbs of a patient through the support plate, the upper limb adjusting mechanisms located on the two sides of the chair respectively fix the two arms of the patient, the upper arms and the wrists are fixed, meanwhile, the angle of the arms is adjusted according to the detection requirements of medical staff, and the lower limbs are heightened through the lower limb adjusting mechanisms.

Preferably, the upper limb adjusting mechanism comprises a first hydraulic cylinder, a fixing ring, a first half ring, a second half ring and a fixing plate, wherein a fixing block and an extending block are fixedly mounted on the circumferential side face of one end of the first hydraulic cylinder respectively, one surface of the fixing block is fixedly connected with one side of the seat, the extending block is in sliding clamping connection with an extending groove, one end of the first hydraulic cylinder is fixedly connected with the circumferential side face of the fixing ring, and a motor box is fixedly mounted at one end of the first hydraulic cylinder.

Preferably, solid fixed ring one end articulates there is the articulated slab, articulated slab one end fixed mounting has the elastic cord, elastic cord one end and solid fixed ring other end activity joint, solid fixed ring both sides surface equal fixed mounting has the second pneumatic cylinder, second pneumatic cylinder one end fixed mounting has first push pedal, a first push pedal side surface and first semi-ring side fixed connection.

Preferably, two are adjacent first semicircle constitutes the loop configuration, first spout has been seted up to first semicircle one side surface, and fixed surface installs first motor in first spout one end, first spout inner wall activity joint has the rack for the arc structure, rack one end upper surface meshes has first gear, first motor is through first pivot and first gear one end fixed connection, rack one end side surface and fixed plate one end fixed connection.

Preferably, fixed mounting has the second motor in the motor box, the second motor is dual output shaft motor, the second motor both ends all have the threaded rod through second pivot fixed mounting, threaded rod week side has cup jointed the second push pedal through the screw thread, second push pedal one end and second semi-ring fixed surface are connected, and two are adjacent the second semi-ring constitutes the loop configuration.

Preferably, a bottom plate is fixedly installed on the outer surface of one end of one of the second half rings through a screw, the bottom plate is movably clamped with the peripheral side surface of one end of the screw, the other second half ring is tightly contacted with the surface of one of the bottom plates, a third motor is fixedly installed on the surface of one of the bottom plates, and a second gear is fixedly installed at one end of the third motor through a third rotating shaft.

Preferably, a third half ring is movably clamped on one side surface of the second half ring, a fluted disc with an arc-shaped structure is fixedly mounted on the outer surface of the third half ring, two ends of the fluted disc are in close contact to form an annular structure, the second gear is located right above the close contact position of one end of the two fluted discs, and the second gear and the two fluted discs are in meshing transmission.

Preferably, a third hydraulic cylinder is fixedly installed on the inner surface of the third half ring, a squeezing plate which is of an arc structure and is made of rubber materials is fixedly installed at one end of the third hydraulic cylinder, a supporting plate which is of an arc structure and is made of rubber materials is fixedly installed on the inner surface of one end of the third half ring, the outer surface of one end of the supporting plate is in close contact with the inner surface of the second half ring, a second sliding groove is formed in the surface of one side of the third half ring, and one end of the second sliding groove is movably clamped with the other end of the fixing plate.

Preferably, the fixed plate is extending structure, and the spacing groove has all been seted up to both sides, spacing inslot wall slip joint has the limiting plate for extending structure, the equal fixed mounting in limiting plate both ends has the spring, spring one end and spacing inslot diapire fixed connection, the equal fixed mounting of diapire has marginal intelligent sensor in the spacing groove both ends.

Preferably, low limbs adjustment mechanism includes the backup pad, the third spout has been seted up to backup pad one side surface, a backup pad surface is seted up with the installing port of third spout one end inner wall intercommunication, the opening has been seted up to installing port both sides inner wall, third spout one end inner wall activity joint has the slider, slider one end is articulated with regulating plate one end, the fixed axle has been cup jointed to slider one side internal surface, fixed axle one end sliding clamping has the mounting panel, the mounting panel both sides coincide with the opening.

The beneficial effects of the invention are as follows:

1. according to the invention, the upper arm is supported by the upper limb adjusting mechanism, the wrist is fixed, the wrist is deflected to enable the orientation of the skin exposed by the arm to face medical staff, the arm is supported by the fixing ring, the wrist is supported by the annular structure formed by two adjacent second half rings, the wrist is fixed by the pressing plate on the inner wall of the annular structure formed by two adjacent third half rings and tightly contacted with the two sides of the wrist, the wrist is driven to deflect by driving the third half rings, the skin exposed on the arm after the wrist is deflected is close to the side on which the medical staff stands, the orientation of the wrist deflection is convenient for the medical staff to carry out ultrasonic examination, and the orientation of the limb is convenient to adjust while fixing, so that the problems that most of the existing adjusting devices used for the limb of a patient in the ultrasonic examination process only have a fixing function and the limb is inconvenient to adjust according to the needs of the medical staff are solved.

2. According to the invention, the fixing plates which are used for supporting the two sides of the arm and preventing the arm from bending are arranged, so that when the ultrasonic instrument is used for inspecting the skin shielded by the fixing plates, the edge of the instrument touches the limiting plate, meanwhile, the limiting plate is extruded towards the limiting groove, after the distance approaching the edge intelligent sensor exceeds the limited distance, the fixing plate deflects by taking the peripheral side surface of the arm as the circumference, and the fixing plate is far away from the ultrasonic instrument, so that the previously shielded skin is exposed, and the inspection by medical personnel is facilitated.

3. According to the invention, the lower limb adjusting mechanism is arranged, so that the two legs placed on the support plate drive one end of the adjusting plate to move downwards along the third chute track through the sliding blocks, the other end of the adjusting plate drives the support plate to deflect upwards by taking the hinge shaft as a central shaft, so that the support plate is driven to tilt, then the seat is dragged to move along the reversing groove track, so that the support plate is close to the medical staff, and meanwhile, the lower limbs of the patient are positioned on one side of the medical staff, the examination of the medical staff is facilitated, and the examination of the lower limbs of the patient can be realized without moving the position of the medical staff.

Drawings

FIG. 1 is a schematic view of a patient limb adjustment device for ultrasound examination according to the present invention;

FIG. 2 is a cross-sectional view of a strut structure of a patient limb adjustment apparatus for ultrasound examination according to the present invention;

FIG. 3 is a structural cross-sectional view of a fixing ring of a patient limb adjusting device for ultrasonic examination according to the invention;

FIG. 4 is a perspective view of a first semi-ring structure of a patient limb adjustment apparatus for ultrasound examination according to the present invention;

FIG. 5 is a perspective view of a fixing plate structure of a patient limb adjusting device for ultrasonic examination according to the present invention;

FIG. 6 is an enlarged view of the portion A of the patient's limb adjustment apparatus for ultrasound examination according to the present invention shown in FIG. 5;

FIG. 7 is a perspective view of a second half-ring structure of the patient's limb adjustment apparatus for ultrasound examination according to the present invention;

FIG. 8 is an enlarged view of the portion B of the patient's limb adjustment apparatus for ultrasound examination according to the present invention;

FIG. 9 is a sectional view of a fixing plate structure of a patient limb adjusting device for ultrasonic examination according to the present invention;

FIG. 10 is a perspective view of a chair structure of a patient's limb adjusting device for ultrasonic examination according to the present invention;

FIG. 11 is an enlarged view of the portion C of FIG. 10 showing the patient's limb adjustment apparatus for ultrasound examination in accordance with the present invention;

fig. 12 is a perspective view of a slider structure of a patient limb adjusting device for ultrasound department examination according to the present invention.

In the figure: 1. a seat; 2. a pillar; 3. a support plate; 4. a guide block; 5. a reversing slot; 6. an extension groove; 7. an adjusting plate; 8. a first hydraulic cylinder; 801. a fixing ring; 802. a first half ring; 803. a second half ring; 804. a fixing plate; 805. a fixed block; 806. an extension block; 807. a motor box; 808. a hinge plate; 809. elastic bands; 810. a second hydraulic cylinder; 811. a first push plate; 812. a first chute; 813. a first motor; 814. a rack; 815. a first gear; 816. a second motor; 817. a threaded rod; 818. a second push plate; 819. a screw; 820. a base plate; 821. a third motor; 822. a second gear; 823. a third half ring; 824. a fluted disc; 825. a third hydraulic cylinder; 826. a compression plate; 827. a support plate; 828. a second chute; 829. a limiting groove; 830. a limiting plate; 831. a spring; 832. an edge smart sensor; 9. a support plate; 901. a third chute; 902. an installation port; 903. opening the gap; 904. a slider; 905. a fixed shaft; 906. and (7) mounting the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 12, a patient limb adjusting device for ultrasound department examination includes a seat 1, a support column 2, a support plate 3, an upper limb adjusting mechanism and a lower limb adjusting mechanism.

The lower surface of the seat 1 is provided with a reversing groove 5 for moving the seat 1 left and right, and the reversing groove 5 is rotationally clamped with one end of the pillar 2 and is convenient for a guide block 4 for steering the seat 1 to slide and be clamped;

one end of the support plate 3 is hinged with the seat 1, the other end of the support plate 3 is hinged with an adjusting plate 7 for supporting the support plate 3, and one end of the adjusting plate 7 is hinged with a sliding block 904;

referring to fig. 1 and fig. 3-9, the upper limb adjusting mechanisms, two of which are respectively located on both sides of the seat 1, in order to be able to be used with different arm lengths, both sides of the seat 1 are provided with extending blocks 806 slidably clamped with the extending grooves 6 fixedly connected with the circumferential side of one of the first hydraulic cylinders 8 for connecting the motor box 807, the circumferential side of one end of the other first hydraulic cylinder 8 is provided with a fixing block 805 connected with the surface of one side of the seat 1, the other end of the other first hydraulic cylinder 8 is fixedly provided with a fixing ring 801 for supporting the upper arm, and in order to fix the upper arm, one end of the fixing ring 801 is hinged with a hinged plate 808, one end of which is fixedly provided with an elastic band 809 wrapping the upper arm and movably clamped with the other end of the fixing ring 801;

in order to fix the wrist, a second motor 816 for driving a second push plate 818 to drive two second half rings 803 to mutually approach and support the wrist through a threaded rod 817 is arranged in the motor box 807, the two second half rings 803 are in close contact to form an annular structure, two toothed discs 824 also form an annular structure, the second half rings 803 simultaneously drive two third half rings 823 to mutually approach and form an annular structure, a third hydraulic cylinder 825 for driving a squeezing plate 826 for fixing the wrist to closely contact with two sides of the wrist is arranged on the inner surface of each third half ring 823, the squeezing plate 826 and the supporting plate 827 made of rubber materials enable the third half rings to be in closer contact with the wrist, and skin damage caused by hard contact is avoided;

in order to enable skin on an arm needing ultrasonic examination to face a medical worker, a second gear 822 which is in meshing transmission with a toothed disc 824 and is driven by a third motor 821 is arranged above the toothed disc 824, the third half ring 823 is driven by the toothed disc 824 to drive a wrist to deflect, the third half ring 823 is driven to deflect and simultaneously drive the wrist to deflect, so that the arm can be adjusted to the direction convenient for the medical worker to examine, a first half ring 802 connected with the third half ring 823 through a first push plate 811 is arranged on the opposite surface of the third half ring 823, a second hydraulic cylinder 810 enabling the two first half rings 802 to be in contact with an annular structure is fixedly installed on the inner surface of the first push plate 811, a first sliding groove 812 which is movably clamped and connected with a rack 814 and is driven by the first motor 813 to be meshed with the first gear 815 is formed in one side surface of the first half ring 802, the two adjacent first sliding grooves 812 are mutually communicated and form the annular structure, and the rack 814 is convenient for driving a fixing plate 804 which is used for preventing the arm from bending and is pushed to be lengthened or shortened to be in a telescopic structure along with the arm length of the patient arm to deflect along the periphery of the arm;

in order to enable the medical staff to be free from the influence of the fixing plate 804 when the medical staff detects the arm through the ultrasonic instrument, the two sides of the fixing plate 804 are provided with limiting grooves 829, the inner walls of the limiting grooves are provided with edge intelligent sensors 832, the edge intelligent sensors 832 are used for sensing that the limiting plates are extruded by the instrument to exceed a limited distance so as to start the first motor 813, the first motor 813 drives the first gear 815 to be meshed with the rack 814 to drive the fixing plate 804 to move, the fixing plate 804 deflects by taking the peripheral side face of the arm as a circumference, the fixing plate 804 is far away from the ultrasonic instrument to expose the skin which is shielded before, and the medical staff can conveniently check the skin;

referring to fig. 1-2 and fig. 10-12, the lower limb adjusting mechanism is located below one end of the seat 1, in order to facilitate lifting of the two legs placed on the support plate 3 and facilitate examination of medical care personnel, a third chute 901 with a third slider 904 movably clamped with the slider 904 and communicated with the mounting opening is mounted on the lower surface of one end of the seat 1, in order to fix the moved slider 904, a fixed shaft 905 with one end slidably clamped with a mounting plate 906 is fixedly sleeved on the surface of one side of the slider 904, openings 903 which coincide with the mounting plate 906 and are used for limiting movement of the slider 904 are formed in two sides of the mounting opening, the support plate 3 is fixed at the position, the support plate 3 is jacked up through an adjusting plate 7 with one end hinged to the support plate 3, so that the lower limb tilting is driven, and the examination of the medical care personnel patients is facilitated.

The working principle is as follows:

a patient sits on the chair 1, two legs are placed on the supporting plate 3, two arms are matched with two upper limb adjusting structures respectively, the peripheral side surface of the upper arm is contacted with the inner surface of the fixing ring 801, the upper arm is fixed on one of the first hydraulic cylinders 8 through an elastic band 809, according to the position of the extended wrist of the arm of the patient, the extending block 806 is moved along the track of the extending groove 6 to drive the other first hydraulic cylinder 8 to drive the motor box 807 to move, the wrist is placed right above the motor box 807 and is positioned between two adjacent second half rings 803, the second hydraulic cylinder 810 and the second motor 816 are started simultaneously, the second hydraulic cylinder 810 contracts to drive the first push plate 811 to drive the two first half rings 802 to approach each other to form a ring-shaped structure, and the second motor 816 drives the threaded rod 817 to rotate to drive the two second half rings 803 to approach each other along the thread track through the second push plate 818 to form a ring-shaped structure, the wrist is put on a supporting plate 827, the two second half rings 803 drive two third half rings 823 to approach each other in the process of approaching each other to form an annular structure to be sleeved on the wrist, the extrusion plate 826 is pushed by extending of a third hydraulic cylinder 825 to enable the extrusion plate 826 to be in close contact with the two sides of the wrist so as to fix the wrist, the bottom plate 820 is installed on one of the second half rings 803 through a screw 819 so that the second gear 822 is meshed with the upper surface of the end, in contact with the two fluted discs 824, of the wrist, the third motor 821 can drive the second gear 822 to be meshed with the fluted discs 824 for transmission, the two third half rings 823 are driven to rotate through the fluted discs 824 so as to drive the wrist to deflect, the skin exposed on the arm after the wrist deflects is close to the side where medical personnel stand, and the orientation of the wrist deflection is convenient for the medical personnel to perform ultrasonic examination;

when a medical worker detects the exposed skin through an ultrasonic instrument, the instrument is close to the skin shielded by the fixed plate 804, the edge of the instrument touches the limit plate 830, the limit plate 830 is extruded into the limit slot 829, the approach distance to the edge intelligent sensor 832 in the process that the limit plate 830 moves to the inner bottom wall of the limit slot 829 exceeds the limited distance, the edge intelligent sensor 832 is electrically connected with the first motor 813, so that the first motor 813 is started to drive the first gear 815 to be meshed with the racks 814 for transmission, the two racks 814 move in the same direction and along the track of the first chute 812, the fixed plate 804 is driven to move in the rotating process of the racks 814, the fixed plate 804 deflects by taking the peripheral side surface of the arm as the circumference, the fixed plate 804 is far away from the ultrasonic instrument, the shielded skin before is exposed, and the medical worker can conveniently check;

when the lower limbs need to be checked, the mounting plate 906 is separated from the opening 903 by pulling the mounting plate 906 outwards, the fixing shaft 905 drives the sliding block 904 to move downwards along the track of the third sliding groove 901, one end of the adjusting plate 7 is driven to move downwards in the moving process, the other end of the adjusting plate 7 drives the supporting plate 3 to deflect upwards by taking the hinge shaft as the central shaft, so that the lower limbs are driven to tilt, when the position of the adjusting plate 7 moving through the sliding block 904 is suitable for the tilting angle of the supporting plate 3, the mounting plate 906 moves towards the inner wall of the opening 903 along the peripheral side of the fixing shaft 905, the mounting plate 906 is coincided with the opening 903 again, so that the moving range of the sliding block 904 is limited, the supporting plate 3 is fixed at the position, the lower limbs of a patient can be checked without moving the position of a medical worker, the seat 1 is dragged, the guide block 4 moves along the track of the reversing groove 5, so that the lower limbs are close to the medical worker, the medical worker can check conveniently, and the right side of the patient can be checked without changing the position after the left limb of the patient is checked by the medical worker, and the seat 1 is changed to the right side.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a patient's limbs adjusting device is used in ultrasonography which characterized in that: the chair comprises a chair (1), a support post (2), a support plate (3), upper limb adjusting mechanisms and lower limb adjusting mechanisms, wherein the chair (1) is positioned above the support post (2), the lower surface of the chair is provided with a reversing groove (5) which is in sliding clamping connection with a guide block (4) rotationally clamped at one end of the support post (2), the two upper limb adjusting mechanisms are respectively positioned at two sides of the chair (1), the two sides of the chair (1) are respectively provided with an extending groove (6) which is mutually matched with the upper limb adjusting mechanisms, one end of the chair (1) is hinged with one end of the support plate (3) through a hinged shaft, the lower surface of the other end of the support plate (3) is hinged with an adjusting plate (7) which is mutually matched with the lower limb adjusting mechanisms, and the lower limb adjusting mechanisms are positioned below one end of the chair (1);

the chair (1) supports the lower limbs of a patient through the support plate (3), and the upper limb adjusting mechanisms positioned on the two sides of the chair (1) are used for fixing the two arms of the patient respectively to realize the fixation of the upper arm and the wrist, simultaneously adjust the angle of the arm according to the detection requirement of medical personnel and heighten the lower limbs through the lower limb adjusting mechanisms;

the upper limb adjusting mechanism comprises first hydraulic cylinders (8), fixing rings (801), first half rings (802), second half rings (803) and fixing plates (804), fixing blocks (805) and extending blocks (806) are fixedly mounted on the peripheral sides of one ends of the two first hydraulic cylinders (8) respectively, one surface of each fixing block (805) is fixedly connected with one side of the seat (1), each extending block (806) is clamped with an extending groove (6) in a sliding mode, one end of one first hydraulic cylinder (8) is fixedly connected with the peripheral side of each fixing ring (801), and one end of the other first hydraulic cylinder (8) is fixedly mounted with a motor box (807);

one end of the fixing ring (801) is hinged with a hinged plate (808), one end of the hinged plate (808) is fixedly provided with an elastic band (809), one end of the elastic band (809) is movably clamped with the other end of the fixing ring (801), the surfaces of two sides of the fixing ring (801) are fixedly provided with second hydraulic cylinders (810), one end of each second hydraulic cylinder (810) is fixedly provided with a first push plate (811), and one side surface of each first push plate (811) is fixedly connected with one side surface of the first half ring (802);

the two adjacent first semi-rings (802) form an annular structure, a first sliding groove (812) is formed in the surface of one side of each first semi-ring (802), a first motor (813) is fixedly installed on the inner surface of one end of each first sliding groove (812), a rack (814) with an arc-shaped structure is movably clamped on the inner wall of each first sliding groove (812), a first gear (815) is meshed on the upper surface of one end of each rack (814), the first motor (813) is fixedly connected with one end of the first gear (815) through a first rotating shaft, and the surface of the side of one end of each rack (814) is fixedly connected with one end of a fixing plate (804);

a second motor (816) is fixedly installed in the motor box (807), the second motor (816) is a motor with double output shafts, two ends of the second motor (816) are respectively and fixedly installed with a threaded rod (817) through a second rotating shaft, the peripheral side surface of the threaded rod (817) is sleeved with a second push plate (818) through threads, one end of the second push plate (818) is fixedly connected with one surface of a second half ring (803), and two adjacent second half rings (803) form an annular structure;

one end of the second half ring (803) is fixedly provided with a bottom plate (820) on the outer surface through a screw (819), the bottom plate (820) is movably clamped with the peripheral side surface of one end of the screw (819), the other second half ring (803) is tightly contacted with one surface of the bottom plate (820), a third motor (821) is fixedly arranged on one surface of the bottom plate (820), and a second gear (822) is fixedly arranged at one end of the third motor (821) through a third rotating shaft;

a third half ring (823) is movably clamped on the surface of one side of the second half ring (803), a fluted disc (824) with an arc-shaped structure is fixedly mounted on the outer surface of the third half ring (823), two ends of the fluted disc (824) are in close contact to form an annular structure, the second gear (822) is located right above the close contact position of one ends of the two fluted discs (824), and the second gear (822) and the two fluted discs (824) are in meshing transmission;

a third hydraulic cylinder (825) is fixedly arranged on the inner surface of the third half ring (823), a squeezing plate (826) which is of an arc structure and is made of rubber materials is fixedly arranged at one end of the third hydraulic cylinder (825), a supporting plate (827) which is of an arc structure and is made of rubber materials is fixedly arranged on the inner surface of one end of the third half ring (823), the outer surface of one end of the supporting plate (827) is in tight contact with the inner surface of the second half ring (803), a second sliding groove (828) is formed in the surface of one side of the third half ring (823), and one end of the second sliding groove (828) is movably clamped with the other end of the fixing plate (804);

fixed plate (804) are extending structure, and spacing groove (829) have all been seted up to both sides, spacing groove (829) inner wall slip joint has limiting plate (830) for extending structure, the equal fixed mounting in limiting plate (830) both ends internal surface has spring (831), bottom wall fixed connection in spring (831) one end and spacing groove (829), equal fixed mounting in bottom wall has marginal intelligent sensor (832) in spacing groove (829) both ends.

2. The device for regulating the limb of a patient for ultrasound examination according to claim 1, wherein: the lower limb adjusting mechanism comprises a supporting plate (9), a third sliding groove (901) is formed in the surface of one side of the supporting plate (9), an installing opening (902) communicated with the inner wall of one end of the third sliding groove (901) is formed in the surface of the supporting plate (9), an opening (903) is formed in the inner wall of two sides of the installing opening (902), a sliding block (904) is movably clamped on the inner wall of one end of the third sliding groove (901), one end of the sliding block (904) is hinged to one end of an adjusting plate (7), a fixed shaft (905) is fixedly sleeved on the inner surface of one side of the sliding block (904), one end of the fixed shaft (905) is slidably clamped on a mounting plate (906), and two sides of the mounting plate (906) are overlapped with the opening (903).