Positioning marking device for noninvasive hepatic fibrosis detection of liver cirrhosis patient

Abstract

The invention belongs to the technical field of hepatic fibrosis detection, and discloses a positioning marking device for noninvasive hepatic fibrosis detection of patients with liver cirrhosis. The magnetic resonance monitoring mechanism is arranged at one end of the supporting seat; according to the technical scheme, the positioning plate, the driving gear and the scale plate are arranged, the driving motor set is driven, so that the output end of the driving motor set drives the movable bed to move towards the interior of the magnetic resonance monitoring mechanism to a proper position, and then the magnetic resonance monitoring mechanism can carry out positioning mark point recording on the detection position of a patient; then a power motor is started to drive a driving gear to rotate to drive a movable frame and a positioning plate to move, so that the positioning plate is attached to the movable bed, at the moment, recording can be carried out when the positioning plate moves to a certain position of a scale plate, and finally the half body shape distance of a patient entering the magnetic resonance monitoring mechanism is marked; therefore, the patient can be accurately positioned during subsequent reexamination, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of liver fibrosis detection, and in particular is a positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis. Background Art

[0002] Non-invasive liver fibrosis testing in patients with cirrhosis is an important clinical assessment method. It can non-invasively assess the degree of liver fibrosis and assist in determining the progression of cirrhosis and the effectiveness of treatment. Common devices include liver elasticity meters and magnetic resonance imaging devices.

[0003] The existing magnetic resonance imaging (MRI) device used for non-invasive liver fibrosis detection in patients with cirrhosis requires the patient to lie on a bed, which is then driven to move so that the patient's upper body is located inside the MRI device for real-time detection. During monitoring, the patient's position can be marked and recorded to facilitate subsequent review and multiple tests of the patient. However, due to the different heights and shapes of patients, it is impossible to accurately locate the detection position according to the changes in the body shape of different patients. Therefore, it is necessary to adjust the appropriate body position distance to perform scanning and detection of the marked position, which greatly reduces the detection efficiency and needs to be improved. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a positioning marking device for non-invasive liver fibrosis detection in patients with cirrhosis, which has the advantage of facilitating the marking and recording of body changes of different patients.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a positioning marking device for non-invasive liver fibrosis detection in patients with cirrhosis, comprising a support seat, and also comprising: a magnetic resonance monitoring mechanism, the magnetic resonance monitoring mechanism being arranged at one end of the support seat; a movable bed, the movable bed being slidably connected to the top of the support seat; a positioning marking mechanism, the positioning marking mechanism being arranged at the top inner side of the magnetic resonance monitoring mechanism; wherein the positioning marking mechanism comprises a positioning plate slidably connected to the top inner side of the magnetic resonance monitoring mechanism, a movable frame located inside the magnetic resonance monitoring mechanism is provided at the bottom of the positioning plate, a power motor located on the back side of the end of the movable frame is provided on the inner wall of the magnetic resonance monitoring mechanism, a driving gear is provided at the output end of the power motor, and a scale plate located at the bottom rear end of the positioning plate is provided at the top inner side of the magnetic resonance monitoring mechanism.

[0006] Preferably, the bottom end of the movable frame is engaged with the surface of the driving gear.

[0007] Preferably, a driving motor group located at the bottom of the magnetic resonance monitoring mechanism is provided inside the support base, and an output end of the driving motor group is threadedly connected to the bottom end of the movable bed.

[0008] Preferably, a buffer mechanism is provided inside the positioning plate, and the buffer mechanism includes a buffer cylinder, a contact plate, a buffer assembly and a roller;

[0009] The buffer cylinder is arranged on both sides of the inner cavity of the positioning plate, the contact plate is arranged at the output end of the buffer cylinder, the buffer component is arranged between the positioning plate and the contact plate, and the buffer component is arranged on the inner side of the buffer cylinder, and the roller is arranged on the outer side of the contact plate.

[0010] Preferably, the buffer assembly includes a fixed block, a limiting rod, a sliding block, a first elastic member and a linkage rod;

[0011] The fixed block is arranged in the middle of one side of the contact plate, the limiting rod is arranged inside one side of the positioning plate, the sliding block is movably installed on the surface of the limiting rod, the sliding block is elastically connected to the inside of the positioning plate through a first elastic member, and the linkage rod is arranged at the end of the sliding block.

[0012] Preferably, the inner wall of the first elastic member is slidably connected to the surface of the limiting rod.

[0013] Preferably, the end of the linkage rod extends to the inner groove of the fixing block and is slidably connected to the inner groove of the fixing block.

[0014] Preferably, a trigger mechanism is provided on both sides of the positioning plate, and the trigger mechanism includes a trigger rod, a second elastic member and a fixing plate;

[0015] The trigger rod is movably sleeved inside the two ends of the positioning plate. The fixing plate is arranged at one end of the trigger rod. The fixing plate is elastically connected to the surface of the positioning plate through a second elastic member.

[0016] Preferably, a support plate located on the top of the fixed plate is provided on one side of the positioning plate, the sliding grooves at both ends of the support plate are slidably connected to the top of the fixed plate, and a reminder mechanism is provided in the middle of the top of the support plate.

[0017] Preferably, the reminder mechanism includes a pressure alarm, an air cylinder, a pneumatic piston rod and a transmission arm;

[0018] The pressure alarm is fixedly installed in the middle of the top of the support plate, the air cylinder is fixedly connected to the bottom end of the outer side of the pressure alarm, the pneumatic piston rod is movably installed inside the air cylinder, and the outer end of the pneumatic piston rod is hinged to the inner end of the top of the fixed plate through a transmission arm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The above technical solution sets a positioning plate, a driving gear and a scale plate, and drives the driving motor group so that the output end of the driving motor group drives the movable bed to move to a suitable position inside the magnetic resonance monitoring mechanism. Then the magnetic resonance monitoring mechanism can record the patient's detection position by positioning the mark point. Then, starting the power motor can drive the driving gear to rotate and drive the movable frame and the positioning plate to move, so that the positioning plate and the movable bed are in contact. At this time, the movement of the positioning plate to a certain position on the scale plate can be recorded, and finally the half-body distance of the patient entering the magnetic resonance monitoring mechanism can be marked to facilitate accurate positioning during subsequent patient review, thereby greatly improving the efficiency of detection.

[0021] The present invention provides a buffer cylinder and a buffer assembly. When the movable bed or the positioning plate moves, the movable bed and the positioning plate are fitted together, which first squeezes the contact plate and the buffer cylinder. The air pressure resistance inside the buffer cylinder is used to pre-buffer and limit the movement of the contact plate. Then, the buffer assembly can strengthen the resistance to the movement of the contact plate, thereby allowing the contact plate to buffer while also buffering the force when the positioning plate and the movable bed are fitted together, thereby avoiding collision damage to the inner side of the movable bed and the positioning plate.

[0022] The present invention is provided with a trigger mechanism and a reminder mechanism. When the positioning plate or the movable bed moves so that the movable bed and the positioning plate fit together, the trigger mechanism will be squeezed and moved, and then one end will push the gas on both sides of the reminder mechanism to enter the middle position of the reminder mechanism, so that the middle position of the reminder mechanism senses a preset pressure alarm value, and the reminder mechanism will sound an alarm to remind medical staff that the movable bed and the positioning plate are fit together smoothly. Finally, the operation of the drive motor group and the power motor can be stopped in time to avoid damage caused by idling of the output shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the drive motor assembly of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the positioning marking mechanism of the present invention;

[0026] Figure 4 Schematic diagram of the cross-sectional structure of the buffer mechanism of the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at A in the middle;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the sliding block of the present invention;

[0029] Figure 7 for Figure 6Schematic diagram of the local enlarged structure at B in the middle;

[0030] Figure 8 Schematic diagram of the structure of the first elastic member of the present invention.

[0031] In the figure: 1. support base; 2. magnetic resonance monitoring mechanism; 3. movable bed; 4. driving motor group; 5. support plate; 6. positioning marking mechanism; 601. positioning plate; 602. movable frame; 603. power motor; 604. driving gear; 605. scale plate; 7. buffer mechanism; 701. buffer cylinder; 702. contact plate; 703. buffer assembly; 7031. fixed block; 7032. limit rod; 7033. sliding block; 7034. first elastic member; 7035. linkage rod; 704. roller; 8. trigger mechanism; 801. trigger rod; 802. second elastic member; 803. fixed plate; 9. reminder mechanism; 901. pressure alarm; 902. air cylinder; 903. pneumatic piston rod; 904. transmission arm. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, the present invention provides a positioning marking device for non-invasive liver fibrosis detection in patients with cirrhosis, comprising a support base 1, and also comprising: a magnetic resonance monitoring mechanism 2, which is arranged at one end of the support base 1; a movable bed 3, which is slidably connected to the top of the support base 1; a positioning marking mechanism 6, which is arranged at the inner top of the magnetic resonance monitoring mechanism 2; wherein the positioning marking mechanism 6 includes a positioning plate 601 slidably connected to the inner top of the magnetic resonance monitoring mechanism 2, a movable frame 602 located inside the magnetic resonance monitoring mechanism 2 is provided at the bottom of the positioning plate 601, a power motor 603 located on the back side of the end of the movable frame 602 is provided on the inner wall of the magnetic resonance monitoring mechanism 2, a driving gear 604 is provided at the output end of the power motor 603, and a scale plate 605 located at the bottom of the rear end of the positioning plate 601 is provided at the inner top of the magnetic resonance monitoring mechanism 2.

[0034] By moving the movable bed 3 and the patient as a whole to the inside of the magnetic resonance monitoring mechanism 2, the patient's half body can be smoothly placed inside the magnetic resonance monitoring mechanism 2 for non-invasive liver fibrosis detection. Then, the medical staff can record the detection position through the control terminal, and then start the power motor 603 to drive the driving gear 604 to rotate and drive the movable frame 602 and the positioning plate 601 to move to one side as a whole until the positioning plate 601 is in contact with the movable bed 3. At this time, the scale plate 605 can be observed to obtain the distance data of the positioning plate 601 movement, and it can be recorded for easy review.

[0035] like Figure 3 As shown, the bottom end of the movable frame 602 is engaged with the surface of the driving gear 604 .

[0036] The above solution is adopted: by providing a movable frame 602, when the power motor 603 runs and drives the driving gear 604 to rotate, the teeth on the surface of the driving gear 604 drive the teeth at the bottom of the movable frame 602, thereby driving the movable frame 602 and the positioning plate 601 to move to one side as a whole.

[0037] like Figure 2 As shown, a driving motor group 4 is provided inside the support base 1 and is located at the bottom of the magnetic resonance monitoring mechanism 2 . The output end of the driving motor group 4 is threadedly connected to the bottom end of the movable bed 3 .

[0038] The above solution is adopted: by providing a driving motor group 4 and starting the driving motor group 4, the output end of the driving motor group 4 can drive the entire movable bed 3 to move to one side.

[0039] like Figure 4 As shown, a buffer mechanism 7 is provided inside the positioning plate 601, and the buffer mechanism 7 includes a buffer cylinder 701, a contact plate 702, a buffer assembly 703 and a roller 704;

[0040] The buffer cylinder 701 is arranged on both sides of the inner cavity of the positioning plate 601, the contact plate 702 is arranged at the output end of the buffer cylinder 701, the buffer component 703 is arranged between the positioning plate 601 and the contact plate 702, and the buffer component 703 is arranged on the inner side of the buffer cylinder 701, and the roller 704 is arranged on the outer side of the contact plate 702.

[0041] The above solution is adopted: by providing a buffer cylinder 701, when the contact plate 702 is in contact with the movable bed 3, the contact plate 702 will move to squeeze the buffer cylinder 701, and the air pressure reaction force inside the buffer cylinder 701 will buffer the movement of the contact plate 702.

[0042] like Figure 4 As shown, the buffer assembly 703 includes a fixed block 7031, a limiting rod 7032, a sliding block 7033, a first elastic member 7034 and a linkage rod 7035;

[0043] The fixed block 7031 is arranged in the middle of one side of the contact plate 702, the limiting rod 7032 is arranged inside one side of the positioning plate 601, the sliding block 7033 is movably installed on the surface of the limiting rod 7032, the sliding block 7033 is elastically connected to the inside of the positioning plate 601 through the first elastic member 7034, and the linkage rod 7035 is arranged at the end of the sliding block 7033.

[0044] With the above solution, due to the elastic force of the first elastic member 7034 , the sliding blocks 7033 can be pushed to move toward each other.

[0045] like Figure 4 As shown, the inner wall of the first elastic member 7034 is slidably connected to the surface of the limiting rod 7032 .

[0046] With the above solution, by providing the limiting rod 7032 , when the limiting rod 7032 moves and the first elastic member 7034 contracts, it will slide horizontally along the surface of the limiting rod 7032 .

[0047] like Figure 7 As shown, the end of the linkage rod 7035 extends to the inner groove of the fixing block 7031 and is slidably connected to the inner groove of the fixing block 7031.

[0048] With the above solution, by providing the linkage rod 7035 , when the fixed block 7031 moves to one side, the linkage rod 7035 is squeezed and driven to slide in the inner groove of the fixed block 7031 , so that the sliding block 7033 is driven to move in opposite directions.

[0049] like Figure 5 As shown, trigger mechanisms 8 are provided on both sides of the positioning plate 601 , and the trigger mechanism 8 includes a trigger rod 801 , a second elastic member 802 and a fixing plate 803 ;

[0050] The trigger rod 801 is movably sleeved inside the two ends of the positioning plate 601, and the fixing plate 803 is provided at one end of the trigger rod 801. The fixing plate 803 is elastically connected to the surface of the positioning plate 601 through the second elastic member 802.

[0051] With the above solution, since the fixing plate 803 is under tension at this time, the trigger rod 801 and the fixing plate 803 are pulled to move toward the side close to the buffer cylinder 701 .

[0052] like Figure 3 and Figure 8 As shown, a support plate 5 located on the top of the fixed plate 803 is provided on one side of the positioning plate 601, and the sliding grooves at both ends of the support plate 5 are slidably connected to the top of the fixed plate 803, and a reminder mechanism 9 is provided in the middle of the top of the support plate 5.

[0053] With the above solution, the sliding grooves at both ends of the support plate 5 can be designed to limit the overall movement of the fixing plate 803 and the trigger rod 801.

[0054] like Figure 3 and Figure 8 As shown, the reminder mechanism 9 includes a pressure alarm 901, an air cylinder 902, a pneumatic piston rod 903 and a transmission arm 904;

[0055] The pressure alarm 901 is fixedly installed in the middle of the top of the support plate 5, the air cylinder 902 is fixedly connected to the bottom end of the outer side of the pressure alarm 901, and the pneumatic piston rod 903 is movably installed inside the air cylinder 902. The outer end of the pneumatic piston rod 903 is hinged to the inner end of the top of the fixed plate 803 through the transmission arm 904.

[0056] The above solution is adopted: by providing a transmission arm 904, when the trigger rod 801 and the fixed plate 803 are squeezed to one side by the movable bed 3, the transmission arm 904 will deflect and squeeze to push the pneumatic piston rod 903 into the inside of the gas cylinder 902, thereby compressing the gas in the inner cavity of the gas cylinder 902, thereby reaching the alarm pressure value preset by the pressure alarm 901, causing the pressure alarm 901 to issue an alarm to remind medical staff to stop moving the drive motor group 4 or the power motor 603.

[0057] The working principle and use process of the present invention:

[0058] First, the patient can lie on top of the movable bed 3, and then the medical staff can start the drive motor group 4 to drive the movable bed 3 and the patient to move to the inside of the magnetic resonance monitoring mechanism 2, so that half of the patient's body is located inside the magnetic resonance monitoring mechanism 2 for detection, and the detection position can be located and recorded by the control end. Then, the power motor 603 can be started to drive the driving gear 604 to rotate. Since the surface of the driving gear 604 is engaged with the bottom end of the movable frame 602, the movable frame 602 and the power motor 603 can be driven to move to one side as a whole.

[0059] Afterwards, when the movable bed 3 contacts the contact plate 702, the output end of the buffer cylinder 701 will be squeezed, and the gas inside the buffer cylinder 701 will be compressed, which will hinder the movement of the positioning plate 601, thereby achieving the purpose of buffering. At the same time, the contact plate 702 will be squeezed, which will cause the inner groove of the fixed block 7031 to squeeze the linkage rod 7035 to slide in the inner groove of the fixed block 7031, so that the sliding block 7033 is squeezed to move in opposite directions, thereby compressing the first elastic member 7034. The elastic force of the first elastic member 7034 can synchronously hinder the buffering until the contact plate 702 is completely retracted into the positioning plate 601.

[0060] At the same time, when the movable bed 3 and the positioning plate 601 are fully fitted together, the trigger rod 801 will be pushed to drive the fixed plate 803 to move to one side synchronously, so that the fixed plate 803 moves to drive the transmission arm 904 to push the pneumatic piston rod 903 to retract into the inner cavity of the gas cylinder 902, thereby squeezing the gas inside the gas cylinder 902, so that the gas pressure is transmitted to the pressure alarm 901. Since the pressure alarm 901 is subjected to the predetermined alarm pressure value, it will sound an alarm to remind medical staff that the movable bed 3 and the positioning plate 601 are fully fitted together. At this time, the operation of the power motor 603 can be stopped, and then the distance data of the positioning plate 601 movement is observed through the scale plate 605. Finally, the patients with the corresponding upper body size are collected to enter the fixed detection position of the magnetic resonance monitoring mechanism 2 for subsequent review.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis, comprising a support base (1), characterized in that: Also includes: A magnetic resonance monitoring mechanism (2), the magnetic resonance monitoring mechanism (2) being arranged at one end of the support base (1); A movable bed (3), wherein the movable bed (3) is slidably connected to the top of the support base (1); A positioning marking mechanism (6), wherein the positioning marking mechanism (6) is arranged on the top inner side of the magnetic resonance monitoring mechanism (2); The positioning marking mechanism (6) comprises a positioning plate (601) slidably connected to the top of the inner side of the magnetic resonance monitoring mechanism (2); a movable frame (602) located inside the magnetic resonance monitoring mechanism (2) is provided at the bottom of the positioning plate (601); a power motor (603) located at the back of the end of the movable frame (602) is provided on the inner wall of the magnetic resonance monitoring mechanism (2); a driving gear (604) is provided at the output end of the power motor (603); and a scale plate (605) located at the bottom of the rear end of the positioning plate (601) is provided at the top of the inner side of the magnetic resonance monitoring mechanism (2).

2. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 1, characterized in that: The bottom end of the movable frame (602) is engaged with the surface of the driving gear (604).

3. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 1, characterized in that: A driving motor group (4) located at the bottom of the magnetic resonance monitoring mechanism (2) is provided inside the support base (1), and an output end of the driving motor group (4) is threadedly sleeved with the bottom end of the movable bed (3).

4. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 1, characterized in that: A buffer mechanism (7) is provided inside the positioning plate (601), and the buffer mechanism (7) comprises a buffer cylinder (701), a contact plate (702), a buffer assembly (703) and a roller (704); The buffer cylinder (701) is arranged on both sides of the inner cavity of the positioning plate (601), the contact plate (702) is arranged at the output end of the buffer cylinder (701), the buffer component (703) is arranged between the positioning plate (601) and the contact plate (702), and the buffer component (703) is arranged on the inner side of the buffer cylinder (701), and the roller (704) is arranged on the outer side of the contact plate (702).

5. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 4, characterized in that: The buffer assembly (703) includes a fixed block (7031), a limiting rod (7032), a sliding block (7033), a first elastic member (7034) and a linkage rod (7035); The fixed block (7031) is arranged in the middle of one side of the contact plate (702), the limiting rod (7032) is arranged inside one side of the positioning plate (601), the sliding block (7033) is movably installed on the surface of the limiting rod (7032), the sliding block (7033) is elastically connected to the inside of the positioning plate (601) through a first elastic member (7034), and the linkage rod (7035) is arranged at the end of the sliding block (7033).

6. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 5, characterized in that: The inner wall of the first elastic member (7034) is slidably connected to the surface of the limiting rod (7032).

7. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 5, characterized in that: The end of the linkage rod (7035) extends to the inner groove of the fixing block (7031) and is slidably connected to the inner groove of the fixing block (7031).

8. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 1, characterized in that: A trigger mechanism (8) is provided on both sides of the positioning plate (601), and the trigger mechanism (8) includes a trigger rod (801), a second elastic member (802) and a fixing plate (803); The trigger rod (801) is movably sleeved inside the two ends of the positioning plate (601), and the fixing plate (803) is arranged at one end of the trigger rod (801). The fixing plate (803) is elastically connected to the surface of the positioning plate (601) through the second elastic member (802).

9. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 1, characterized in that: A support plate (5) located on the top of the fixed plate (803) is provided on one side of the positioning plate (601), and the sliding grooves at both ends of the support plate (5) are slidably connected to the top of the fixed plate (803), and a reminder mechanism (9) is provided in the middle of the top end of the support plate (5).

10. The positioning marking device for non-invasive liver fibrosis detection in patients with liver cirrhosis according to claim 9, characterized in that: The reminder mechanism (9) includes a pressure alarm (901), an air cylinder (902), a pneumatic piston rod (903) and a transmission arm (904); The pressure alarm (901) is fixedly mounted on the middle portion of the top of the support plate (5); the air cylinder (902) is fixedly connected to the bottom end of the outer side of the pressure alarm (901); the pneumatic piston rod (903) is movably mounted inside the air cylinder (902); and the outer end of the pneumatic piston rod (903) is hinged to the inner end of the top of the fixed plate (803) via a transmission arm (904).

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