Medical equipment and lifting device thereof

Abstract

The invention provides medical equipment and a lifting device thereof, the lifting device is applied to the medical equipment, the lifting device comprises a shear type lifting mechanism and a driving mechanism connected with the shear type lifting mechanism, and the shear type lifting mechanism comprises a plurality of shear type supports which are sequentially connected in the first direction; the shear type supports on the two sides in the first direction are used for being connected with a C-shaped arm and a detector of medical equipment respectively. The driving mechanism can drive the shear type supports to be unfolded or folded in the first direction. Through the configuration, the lifting device is simple in structure, and the detector can be driven to do lifting motion in the first direction only by driving the shear type lifting mechanism to be unfolded or folded in the first direction through the driving mechanism, so that the distance between the detector and the radiation source is adjusted. Based on the unfolding performance and the folding performance of the shear type lifting mechanism, the detector can be ensured to move along the first direction, and the space occupied by the lifting device can be reduced on the premise that the movement range of the detector along the first direction is not changed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a medical equipment and a lifting device thereof. Background Art

[0002] Current medical suspended DSA devices typically utilize a lifting mechanism to ensure SID (source-image distance) requirements. This lifting mechanism typically utilizes a single-stage barrel positioned at the end of the C-arm, which can compress the C-arm's rotational travel along its own arc. To compensate for this C-arm's rotational travel, dual C-arms or extended C-arms with a longer arc length at one end of the tube are commonly employed. This dual C-arm design increases overall structural complexity and cost, while multi-stage nesting weakens system rigidity, leading to CBCT vibration issues. Extending the arc length of one end of the tube increases the overall structure's bulk, posing a risk of collision with the physician's legs and feet during clinical use. Among the currently available three-stage barrel designs, the three-stage barrel utilizes a multi-screw multiplication structure, which is complex and occupies a significant amount of space within the barrel. The dual-barrel design, on the other hand, utilizes a single screw, and the barrel housing still uses the three-stage barrel body, resulting in random motion in the second barrel without multiplication. Summary of the Invention

[0003] The present invention provides a medical device and a lifting device thereof, aiming to ensure the movement space of a detector on a C-shaped arm and to reduce the space occupied by the lifting device under the premise that the lifting range of the detector remains unchanged.

[0004] To solve the above technical problems, according to one aspect of the present invention, the present invention provides a lifting device, which is applied to medical equipment, wherein the medical equipment includes a C-arm and a detector, and the lifting device includes:

[0005] A scissor-type lifting mechanism, comprising a plurality of scissor-type brackets connected in sequence along a first direction, wherein the scissor-type brackets on both sides along the first direction are respectively used to connect a C-arm and a detector of a medical device;

[0006] A driving mechanism is connected to the scissor-type lifting mechanism and can drive the plurality of scissor-type supports to unfold or fold along the first direction.

[0007] Optionally, the scissor-type bracket includes a first connecting arm and a second connecting arm, wherein the first connecting arm and the second connecting arm are arranged crosswise and rotatably connected to each other;

[0008] Among them, among the two adjacent scissor-type brackets, the first connecting arm of one of the scissor-type brackets and the second connecting arm of the other of the scissor-type brackets are rotatably connected, and the second connecting arm of one of the scissor-type brackets and the first connecting arm of the other of the scissor-type brackets are rotatably connected.

[0009] Optionally, in the scissor-type bracket of the scissor-type lifting mechanism close to the C-shaped arm, the second connecting arm is fixed in a position along the second direction at an end different from that connected to the adjacent scissor-type bracket, and the first connecting arm is movable along the second direction at an end different from that connected to the adjacent scissor-type bracket;

[0010] In the scissor-type bracket of the scissor-type lifting mechanism close to the detector, the first connecting arm is fixed at a position along the second direction at an end different from that connected to the adjacent scissor-type bracket, and the second connecting arm is movable along the second direction at an end different from that connected to the adjacent scissor-type bracket;

[0011] The second direction is perpendicular to the first direction, and the second direction is parallel to the plane where the scissor-type bracket is located.

[0012] Optionally, the scissor lift mechanism further includes a first mounting base and a second mounting base;

[0013] In the scissor-type bracket of the scissor-type lifting mechanism close to the C-shaped arm, the second connecting arm is rotatably connected to the first mounting base, and the first connecting arm is rotatably connected to the driving mechanism;

[0014] In the scissor-type bracket of the scissor-type lifting mechanism close to the detector, the first connecting arm is rotatably connected to the second mounting base, the second connecting arm is rotatably connected to the second mounting base, and the second connecting arm is movably connected to the second mounting base at an end different from the end connecting the adjacent scissor-type bracket.

[0015] Optionally, the driving mechanism includes an active member and a driven member connected to the active member, the rotational motion of the active member can be converted into linear motion of the driven member along a second direction, and the driven member is rotatably connected to the first connecting arm or the second connecting arm of one of the scissor-type brackets; the second direction is perpendicular to the first direction, and the second direction is parallel to the plane where the scissor-type bracket is located.

[0016] Optionally, at least a portion of the active member is configured as a lead screw, and the driven member is threadedly connected to the lead screw in the active member.

[0017] Optionally, the lifting device includes at least three protective bases, which surround the scissor-type lifting mechanism and are barrel-shaped or shell-shaped along the first direction; the at least three protective bases are movably overlapped in sequence along the first direction and arranged in sequence along the second direction; the at least three protective bases cooperate with each other to cover each of the scissor-type brackets; the two protective bases located on both sides of the first direction are used to connect the C-arm and the detector respectively;

[0018] The second direction is perpendicular to the first direction, and the second direction is parallel to the plane where the scissor-type bracket is located.

[0019] Optionally, the lifting device includes three protective substrates, namely a first protective substrate, a second protective substrate and a third protective substrate, and the first protective substrate, the second protective substrate and the third protective substrate are sequentially away from the scissor-type lifting mechanism along the second direction;

[0020] Among them, one of the scissor-type brackets located between the scissor-type brackets on both sides of the first direction is a reference scissor-type bracket, the rotating axis between the first connecting arm and the second connecting arm of the reference scissor-type bracket is a reference axis, the reference axis is fixedly connected to the second protective base, and the first protective base is provided with a through hole for the reference axis to move along the first direction.

[0021] Optionally, the lifting device further includes a guide structure, which includes a guide rail extending along the first direction and a slider movably connected to the guide rail; one of the two adjacent protective bases is installed with the guide rail and the other is installed with the slider.

[0022] According to another aspect of the present invention, the present invention further provides a medical device comprising:

[0023] A C-shaped arm having two opposite inner ends, wherein both inner ends are located on the inner arc surface of the C-shaped arm;

[0024] a radiation source mounted on one inner end of the C-shaped arm;

[0025] detector;

[0026] As described above, the scissor-type lifting mechanism of the lifting device is connected to the detector at one end along the first direction, and the other end of the scissor-type lifting mechanism along the first direction is connected to the other inner end of the C-shaped arm, that is, the scissor-type brackets on both sides of the scissor-type lifting mechanism along the first direction are respectively connected to the detector and the other inner end of the C-shaped arm.

[0027] To sum up, in the medical equipment and lifting device thereof provided by the present invention, the lifting device is applied to the medical equipment, the medical equipment includes a C-arm and a detector, the lifting device includes a scissor-type lifting mechanism and a driving mechanism connected to the scissor-type lifting mechanism, the scissor-type lifting mechanism includes a plurality of scissor-type brackets connected in sequence along a first direction, and the scissor-type brackets on both sides along the first direction are respectively used to connect the C-arm and the detector of the medical equipment; the driving mechanism can drive the plurality of scissor-type brackets to expand or fold along the first direction.

[0028] With this configuration, the lifting device of the present invention has a simple structure. Simply by driving the scissor-type lifting mechanism's scissor-type legs in a first direction, the driving mechanism can drive the detector to move up and down in the first direction, thereby adjusting the distance between the detector and the radiation source. The expandable and foldable nature of the scissor-type lifting mechanism ensures the detector's movement in the first direction and reduces the space occupied by the lifting device while maintaining the detector's range of motion in the first direction.

[0029] It should be noted that the medical device of the present invention includes the aforementioned lifting device, and thus possesses the beneficial technical effects provided by the lifting device, which will not be repeated here. Furthermore, based on the movement of the detector driven by the lifting device, the radiation source and detector can be mounted on the opposing inner ends of the C-arm, respectively. This ensures the required travel of the C-arm's slip ring without extending the arc length of the C-arm end where the radiation source is mounted, thus not affecting the overall aesthetics or the movement of the C-arm's slip ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Those skilled in the art will appreciate that the accompanying drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0031] Figure 1 is a schematic diagram of a medical device according to an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of a lifting device according to an embodiment of the present invention;

[0033] Figure 3 yes Figure 2 Enlarged view of part A;

[0034] Figure 4 is a top view of a lifting device according to an embodiment of the present invention along a first direction;

[0035] Figure 5 It is a schematic diagram of a medical device in the prior art.

[0036] In the attached figure:

[0037] 10-lifting device; 11-scissor-type lifting mechanism; 111-scissor-type bracket; 1111-first connecting arm; 1112-second connecting arm; D-first scissor-type bracket; E-second scissor-type bracket; F-third scissor-type bracket; G-reference scissor-type bracket; G1-reference axis; 112-first mounting base; 113-second mounting base; 12-driving mechanism; 121-active member; 122-driven member; 123-motor; 124-transmission unit; 13-protective base; 131-first protective base; 1310-through hole; 132-second protective base; 133-third protective base; 141-guide rail; 142-slider; 15-first connecting block; 16-second connecting block; 17-third connecting block; 18-fourth connecting block;

[0038] 20-C-arm;

[0039] 30-detector;

[0040] 40-ray source;

[0041] 50-mounting structure;

[0042] 60-Pulley structure;

[0043] 70-lifting structure;

[0044] m-first direction; n-second direction. DETAILED DESCRIPTION

[0045] To make the objects, advantages, and features of the present invention more clearly apparent, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale. They are only used to conveniently and clearly assist in illustrating the purposes of the embodiments of the present invention. In addition, the structures shown in the drawings are often part of the actual structure. In particular, different drawings may need to illustrate different focuses and sometimes use different scales.

[0046] As used in the present invention, the singular forms "a", "an", and "the" include plural referents, the term "or" is generally used to include "and / or", the term "several" is generally used to include "at least one", and the term "at least two" is generally used to include "two or more". In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first", "second", and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" and "proximal end" and "distal end" generally refer to two corresponding parts, which not only include endpoints, and the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be a communication between two elements or an interaction relationship between two elements. In addition, as used in the present invention, "one element is disposed on another element" generally only indicates that there is a connection, coupling, cooperation, or transmission relationship between the two elements, and the connection, coupling, cooperation, or transmission between the two elements may be direct or indirect through an intermediate element. It should not be understood as indicating or implying a spatial positional relationship between the two elements. That is, one element can be in any orientation, such as inside, outside, above, below, or to one side of another element, unless the content clearly indicates otherwise. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Figure 1 FIG is a schematic diagram of a medical device according to an embodiment of the present invention. Figure 1 As shown, Figure 1As shown, one embodiment of the present invention schematically provides a medical device, which may be a medical imaging device. The medical imaging device includes a C-arm 20, a radiation source 40, a detector 30, and a lifting device 10. The radiation source 40 is mounted at one end of the C-arm 20, and the detector 30 is mounted to the other end of the C-arm 20 via the lifting device 10, so that the radiation source 40 and the detector 30 are aligned. It is understood that the radiation source 40 is a device capable of emitting X-rays, gamma rays, or electron beams, and the detector 30 is a device capable of receiving the radiation emitted by the radiation source 40. The combination of the radiation source 40 and the detector 30 can perform medical examinations or treatments. In one embodiment, the radiation source 40 includes a tube capable of emitting radiation (such as X-rays). The detector 30 may be a flat-panel detector 30. The radiation emitted by the tube passes through the patient and is received by the detector 30 for imaging processing. The medical imaging device is a digital subtraction angiography (DSA) device, which can be used in the fields of angiography, cardiology, and neurology, but the present invention is not limited thereto.

[0048] Furthermore, the medical device includes a mounting structure 50 and a pulley structure 60 connected to the mounting structure 50. The mounting structure 50 can be fixed to a predetermined location, such as the ceiling of an operating room. The pulley structure 60 is shaped to fit the C-arm 20 and is slidably connected to the C-arm 20, allowing the C-arm 20 to rotate along its own arc (i.e., a slip ring motion of the C-arm 20). Preferably, the pulley structure 60 can also drive the C-arm 20 to rotate about the axis H. In this way, the relative position between the detector 30 and the radiation source 40 can be adjusted through the C-arm 20, thereby meeting more clinical usage requirements.

[0049] The mechanical features of the lifting device 10 enable the detector 30 to move in the lifting direction (the lifting direction here can be understood as the direction of the line connecting the two ends of the C-arm 20), so that the detector 30 is close to or away from the radiation source 40, thereby achieving SID (SID refers to the relative distance between the focus of the tube of the radiation source 40 and the imaging surface of the detector 30) adjustable to meet a wider range of clinical diagnosis.

[0050] Figure 2 is a schematic diagram of a lifting device according to an embodiment of the present invention, Figure 3 yes Figure 2 Enlarged view of section A in the middle. Figure 2 and Figure 3The lifting device 10 includes a scissor-type lifting mechanism 11 and a drive mechanism 12 connected to the scissor-type lifting mechanism 11. The scissor-type lifting mechanism 11 extends in a first direction m and can be expanded or folded along the first direction m. The two ends of the scissor-type lifting mechanism 11 along the first direction m are respectively connected to one end of the C-arm 20 and the detector 30, so that the detector 30 is mounted on the C-arm 20 via the scissor-type lifting mechanism 11. Specifically, the scissor-type lifting mechanism 11 includes a plurality of scissor-type brackets 111 connected in sequence along the first direction m. The scissor-type brackets 111 located on one side of the first direction m are connected to one end of the C-arm 20, while the scissor-type brackets 111 located on the other side of the first direction m are connected to the detector 30. It is understood that after the detector 30 is mounted on the C-arm 20 via the scissor-type lifting mechanism 11, the first direction m is parallel to the line connecting the two ends of the C-arm 20. That is, the first direction m is the lifting direction of the detector 30. The drive mechanism 12 can drive the scissor-type lifting mechanism 11 to expand or fold, thereby driving the detector 30 to rise and fall along the first direction m. The lifting device 10 of the present invention has a simple structure. Simply by driving the multiple scissor-type brackets 111 to expand or fold along the first direction (specifically, all scissor-type brackets 111 to expand or fold simultaneously) via the drive mechanism 12, the detector 30 can be driven to rise and fall along the first direction m, thereby adjusting the distance between the detector 30 and the radiation source 40. The expandability and foldability of the scissor-type lifting mechanism 11 ensure the detector 30 can move along the first direction m, and the space occupied by the lifting device 10 can be reduced while maintaining the range of motion of the detector 30 along the first direction m.

[0051] Continue reading Figure 3 , the two scissor-type brackets 111 of the scissor-type lifting mechanism 11 on both sides of the first direction m are directly or indirectly connected to the C-arm 20 and the detector 30 respectively, and the scissor-type bracket 111 includes a first connecting arm 1111 and a second connecting arm 1112. The first connecting arm 1111 and the second connecting arm 1112 are arranged crosswise (the two are arranged in an "X" shape) and are rotatably connected to each other. Among them, among the two adjacent scissor-type brackets 111, the first connecting arm 1111 of one of the scissor-type brackets 111 and the second connecting arm 1112 of the other scissor-type brackets 111 are rotatably connected, and the second connecting arm 1112 of one of the scissor-type brackets 111 and the first connecting arm 1111 of the other scissor-type brackets 111 are rotatably connected. For example, refer to Figure 3, the two adjacent scissor-type brackets 111 located at the top are defined as the first scissor-type bracket D and the second scissor-type bracket E, respectively. The first connecting arm 1111 of the first scissor-type bracket D and the second connecting arm 1112 of the second scissor-type bracket E are rotatably connected, and the second connecting arm 1112 of the first scissor-type bracket D and the first connecting arm 1111 of the second scissor-type bracket E are rotatably connected. It should be noted that the length of the first connecting arm 1111 and the length of the second connecting arm 1112 in the same scissor-type bracket 111 are equal; for different scissor-type brackets 111, the lengths of the first connecting arm 1111 (or the second connecting arm 1112) of each scissor-type bracket 111 can be equal or different. For example, the lengths of the first connecting arm 1111 and the second connecting arm 1112 of the first scissor-type bracket D or the second scissor-type bracket E are equal, and the lengths of the first connecting arm 1111 of the first scissor-type bracket D and the first connecting arm 1111 of the second scissor-type bracket E can be equal or different. Preferably, the rotation axis between the first connecting arm 1111 and the second connecting arm 1112 of the same scissor-type bracket 111 is located in the middle position of the first connecting arm 1111 and the second connecting arm 1112 .

[0052] It is understandable that, based on the matching relationship between the first connecting arm 1111 and the second connecting arm 1112 in the scissor-type bracket 111 and the matching relationship between the first connecting arm 1111 of one of the two adjacent scissor-type brackets 111 and the second connecting arm 1112 of the other, the driving mechanism 12 only needs to drive the angle between the first connecting arm 1111 and the second connecting arm 1112 in any one of the scissor-type brackets 111 to change in order to realize the expansion or folding of the scissor-type lifting mechanism 11. Specifically, if the driving mechanism 12 drives the angle between the first connecting arm 1111 and the second connecting arm 1112 of the scissor-type bracket 111 to decrease, the scissor-type lifting mechanism 11 will expand, thereby driving the detector 30 closer to the radiation source 40; if the driving mechanism 12 drives the angle between the first connecting arm 1111 and the second connecting arm 1112 of the scissor-type bracket 111 to increase, the scissor-type lifting mechanism 11 will fold, thereby driving the detector 30 away from the radiation source 40. It should be noted that this embodiment does not limit the rotational connection method between any first connecting arm 1111 and the second connecting arm 1112. For example, the two can be connected by a hinge, or the two can be connected by the matching method of an axis and a hole.

[0053] It is also understood that the drive mechanism 12 causes the angle between the first connecting arm 1111 and the second connecting arm 1112 of the scissor-type bracket 111 to change, and the sizes of the first connecting arm 1111 and the second connecting arm 1112 along the second direction n to change, provided that the first connecting arm 1111 and the second connecting arm 1112 can generate relative motion along the second direction n. The second direction n is perpendicular to the first direction m and parallel to the plane defined by the scissor-type bracket 111, i.e., parallel to the plane defined by the intersecting first connecting arm 1111 and the second connecting arm 1112. For example, for the first scissor-type bracket D, the drive mechanism 12 can cause the upper end of the first connecting arm 1111 (i.e., the end not connected to the second scissor-type bracket E) and the upper end of the second connecting arm 1112 (the end not connected to the second scissor-type bracket E) to generate relative motion along the second direction n, thereby adjusting the angle between the first connecting arm 1111 and the second connecting arm 1112.

[0054] In order to enable the first connecting arm 1111 and the second connecting arm 1112 to generate relative movement along the second direction n, for example, the following setting method can be configured: for the scissor-type bracket 111 (i.e., the first scissor-type bracket D) of the scissor-type lifting mechanism 11 close to the C-arm 20, the second connecting arm 1112 of the first scissor-type bracket D is different from the end connected to the adjacent scissor-type bracket 111 and is fixed in position along the second direction n (i.e., the position of the end of the first scissor-type bracket D that is not connected to the second scissor-type bracket E in the second direction n is fixed), and the first connecting arm 1111 is different from the end connected to the adjacent scissor-type bracket 111 and is movable along the second direction n (i.e., the position of the end of the first scissor-type bracket D that is not connected to the second scissor-type bracket E in the second direction n can be adjusted); for the scissor-type bracket 111 (i.e., the end of the first scissor-type bracket D that is not connected to the second scissor-type bracket E in the second direction n can be adjusted); Figure 3 The lowest scissor-type bracket 111 is defined as the third scissor-type bracket F. The first connecting arm 1111 of the third scissor-type bracket F is fixed in position along the second direction n, different from the end connecting to the adjacent scissor-type bracket 111, and the second connecting arm 1112 is movable along the second direction n, different from the end connecting to the adjacent scissor-type bracket 111. With this configuration, the drive mechanism 12 can apply a force to the scissor-type bracket 111 along the second direction n, causing the scissor-type bracket 111 to decrease in size along the second direction n, thereby increasing in size along the first direction m, thereby deploying the scissor-type lifting mechanism 11; or it can cause the scissor-type bracket 111 to increase in size along the second direction n, thereby decreasing in size along the first direction m, thereby folding the scissor-type lifting mechanism 11.

[0055] Further, see Figure 3The scissor-type lifting mechanism 11 also includes a first mounting base 112 and a second mounting base 113. The first mounting base 112 can be mounted on the C-arm 20, and the second mounting base 113 can be connected to the detector 30. Optionally, the first mounting base 112 and the second mounting base 113 are both plate-shaped. The two scissor-type brackets 111 located on both sides of the first direction m of the scissor-type lifting mechanism 11 are respectively connected to the first mounting base 112 and the second mounting base 113, that is, the first scissor-type bracket D is connected to the first mounting base 112, and the end of the first connecting arm 1111 of the first scissor-type bracket D close to the first mounting base 112 and the end of the second connecting arm 1112 close to the first mounting base 112 can generate relative movement along the second direction n, and the third scissor-type bracket F is connected to the second mounting base 113, and the end of the first connecting arm 1111 of the third scissor-type bracket F close to the second mounting base 113 and the end of the second connecting arm 1112 close to the second mounting base 113 can generate relative movement along the second direction n. The driving mechanism 12 may be mounted on the first mounting base 112 , for example.

[0056] Preferably, the second mounting base 113 is configured as at least part of the detector 30 , for example, the second mounting base is configured as one end surface of the flat detector 30 . In other words, the third scissor-type bracket F can be directly connected to the flat detector 30 .

[0057] Furthermore, in the scissor-type bracket 111 (i.e., the first scissor-type bracket D) of the scissor-type lifting mechanism 11 close to the C-arm 20, the second connecting arm 1112 is rotatably connected to the first mounting base 112, and the first connecting arm 1111 is rotatably connected to the driving mechanism 12; in the scissor-type bracket 111 (i.e., the third scissor-type bracket F) of the scissor-type lifting mechanism 11 close to the detector 30, the first connecting arm 1111 is rotatably connected to the second mounting base 113, the second connecting arm 1112 is rotatably connected to the second mounting base 113, and the second connecting arm 1112 is movably connected to the second mounting base 113 at an end different from the end connected to the adjacent scissor-type bracket 111.

[0058] As specific implementation details, the lifting device 10 also includes a first connecting block 15, a second connecting block 16, and a second connecting block 17. The second connecting arm 1112 of the first scissor-type bracket D is rotatably connected to the first connecting block 15, and the first connecting block 15 is fixedly connected to the first mounting base 112. The first connecting arm 1111 of the first scissor-type bracket D is rotatably connected to the driving mechanism 12, and the driving mechanism 12 can drive the first connecting arm 1111 of the first scissor-type bracket D to move along the second direction n at one end close to the first mounting base 112. The second connecting block 16 is fixed to the second mounting base 113, and the third connecting block 17 is movably mounted on the second mounting base 113 along the second direction. The first connecting arm 1111 of the third scissor-type bracket F is rotatably connected to the second connecting block 16, and the second connecting arm 1112 is rotatably connected to the third connecting block 17.

[0059] For the driving mechanism 12, the driving mechanism 12 includes an active member 121 and a driven member 122 connected to the active member 121. The active member 121 extends along the second direction n, and the active member 121 can rotate around its own axis. The rotational motion of the active member 121 can be converted into linear motion of the driven member 122 along the second direction n. The driven member 122 is rotatably connected to the first connecting arm 1111 or the second connecting arm 1112 of one of the scissors-type brackets 111. For example, the driven member 122 is rotatably connected to the first connecting arm 1111 of the first scissors-type bracket D.

[0060] Furthermore, the driving mechanism 12 further includes a motor 123, which is connected to the active member 121 to drive the active member 121 to rotate. Figure 4 This is a top view of a lifting device according to an embodiment of the present invention along the first side, see Figure 3 and Figure 4 The drive mechanism 12 further includes a transmission unit 124, through which the motor 123 is connected to the active member 121 to transmit torque to the active member 121. The transmission unit 124 is used to arrange the motor 123 in a direction perpendicular to the axial direction of the active member 121, thereby reducing the space occupied by the entire device along the first direction m. The transmission unit 124 can be, for example, a transmission combination of one or more of a synchronous belt, a gear, and a worm gear.

[0061] In one embodiment, the drive mechanism 12 can be configured based on the working principle of a ball screw. Specifically, at least a portion of the active member 121 is configured as a screw, and at least a portion of the driven member 122 is configured as a nut. The driven member 122 is threadedly connected to the screw in the active member 121. Furthermore, the active member 121 is mounted on the first mounting base 112 via a fourth connecting block 18.

[0062] Further, see Figure 3 and Figure 4 The lifting device 10 includes at least three protective bases 13, which surround the scissor-type lifting mechanism 11 and are barrel-shaped or shell-shaped along the first direction m; at least three protective bases 13 are movably overlapped in sequence along the first direction m (that is, there are overlapping edges between two adjacent protective bases 13), and are arranged in sequence along the second direction n; at least three protective bases 13 cooperate with each other to cover each of the scissor-type brackets 111; the two protective bases 13 located on both sides of the first direction m are respectively used to connect the C-arm 20 and the detector 30, and further, the two protective bases 13 located on both sides of the first direction m are respectively fixedly connected to the first mounting base 112 and the second mounting base 113, so that as the scissor-type lifting mechanism 11 is folded or unfolded, the second mounting base 113 will drive the protective base 13 at the lower end to move together, thereby realizing relative movement between adjacent protective bases 13 at each location. On the one hand, each protective base 13 can cover each scissor-type bracket 111 to play a protective role and enhance the aesthetics of the device; on the other hand, the two protective bases 13 located on both sides of the first direction m are respectively connected to the C-shaped arm 20 and the detector 30, and the two ends of the scissor-type lifting mechanism 11 are connected to the C-shaped arm 20 and the detector 30. In this way, each protective base 13 also plays a fixed support role to ensure the structural stability of the lifting device 10.

[0063] Typically, three protective substrates 13 are configured, namely a first protective substrate 131, a second protective substrate 132, and a third protective substrate 133. The first protective substrate 131, the second protective substrate 132, and the third protective substrate 133 are sequentially away from the scissor lift mechanism 11 along the second direction n. The two protective substrates 13 located in the first direction m are the first protective substrate 131 and the third protective substrate 133. The first protective substrate 131 is connected to the detector 30, and the third protective substrate 133 is connected to the C-arm 20. In the prior art, the movement of the second protective substrate 132 is random. For example, see Figure 1 If the C-arm 20 rotates around the axis H so that the detector 30 is located below the radiation source 40, and the lifting device 10 drives the detector 30 to move upward, since the second protective base 132 is movably connected to the first protective base 131 and the third protective base 133 respectively, the second protective base 132 may move downward due to gravity, and there may even be a risk of the second protective base 132 falling, affecting the safety of the medical examination.

[0064] Based on this, one of the scissor-type brackets 111 located between the two sides of the first direction m is configured as the reference scissor-type bracket G (that is, any one of the scissor-type brackets 111 located between the first scissor-type bracket D and the third scissor-type bracket F is selected as the reference scissor-type bracket G). The rotation axis between the first connecting arm 1111 and the second connecting arm 1112 of the reference scissor-type bracket G is the reference axis G1. The reference axis G1 is fixedly connected to the second protective base 132, and the first protective base 131 is provided with a through hole 1310 for the reference axis G1 to move along the first direction m. In this way, the movement of the second protective base 132 can be synchronized with the movement of the scissor-type lifting mechanism 11, and then the movement of the second protective base 132 can be synchronized with the movement of the first protective base 131, see Figure 3 For example, when the scissor lift mechanism 11 is deployed, the first protective base 131 moves downward. Since the second protective base 132 is fixedly connected to the reference axis G1, and the reference axis G1 can move up and down within the through hole 1310, the scissor lift mechanism 11 will drive the second protective base 132 to move downward. It can be understood that based on the number of scissor brackets 111 and the position of the scissor brackets 111 connected to the second protective base 132, the movement stroke of the first protective base 131 along the first direction m is multiplied by the movement stroke of the second protective base 132 along the first direction m. Preferably, the number of scissor brackets 111 is an odd number, and the scissor bracket 111 configured in the middle position is the reference scissor bracket G.

[0065] Optionally, the lifting device 10 also includes a guide structure, which includes a guide rail 141 extending along the first direction m and a slider 142 movably connected to the guide rail 141; between two adjacent protective bases 13, one is installed with the guide rail 141 and the other is installed with the slider 142, thereby realizing a movable connection between the two adjacent protective bases 13.

[0066] Figure 5 This is a schematic diagram of a medical device in the prior art, see Figure 5In order to ensure that the detector 30 has sufficient lifting and lowering range to meet SID, the lifting structure 70 in the prior art requires a larger space in the lifting direction to ensure that the detector 30 has sufficient movement stroke. Generally, the lifting structure 70 needs to be installed on the end face of the C-arm (here refers to one end of the C-arm 20 along its own circumference, that is, one end face along the arc direction of the C-arm 20, not the inner end of the C-arm 20) to ensure that there is sufficient distance between the imaging plane of the radiation source 40 and the detector 30. In order to meet the clinical use requirements, the C-arm 20 needs to perform slip ring motion. The C-arm 20 needs to have at least 180° of circular motion stroke in its own arc direction. The 180° circular motion stroke requires that the arc length of the C-arm 20 is at least 1 / 2 of the circumference. The lifting structure 70 in the prior art is installed on one end face of the C-arm in the arc direction. Then, it is necessary to extend the arc length of the other end of the C-arm 20 (the end where the radiation source 40 is installed) to ensure that the total arc length of the C-arm 20 meets the 180° angle requirement. This will cause the end of the C-arm 20 where the radiation source 40 is installed to protrude outward ( Figure 1 Not only is it detrimental to the overall aesthetics, it also has a certain impact on the slip ring movement of the C-arm 20 and the movement posture of the C-arm 20. For example, when the C-arm 20 is in a vertical state and the C-arm 20 makes a circular motion around the vertical direction, the protruding part at B is likely to hit nearby objects or even medical staff.

[0067] See Figure 1 Based on the mechanical characteristics of the scissor-type lifting mechanism 11 in the lifting device 10 of this embodiment, the detector 30 of this embodiment can be installed on the inner arc surface of the C-arm 20 through the lifting device 10, while ensuring the motion range of the detector 30 and without increasing the spatial volume of the lifting device 10. Specifically, the detector 30 can be installed on an inner end of the inner arc surface of the C-arm 20 through the lifting device 10. And the radiation source 40 is installed on the other opposite inner end of the inner arc surface of the C-arm 20. In this way, on the one hand, the end of the C-arm 20 where the detector 30 is installed can have a longer arc length, and on the other hand, the arc length of the end of the C-arm 20 where the radiation source 40 is installed can meet the travel requirement of the slip ring movement of the C-arm 20 without being extended, thereby solving the problem. Figure 5 The protruding problem at point B reduces the risk of collision between the end of the C-arm 20 where the radiation source 40 is mounted and medical personnel or objects, thereby improving the safety factor.

[0068] In summary, in the medical equipment and its lifting device provided by the present invention, the lifting device is applied to the medical equipment, the medical equipment includes a C-arm and a detector, the lifting device includes a scissor-type lifting mechanism and a driving mechanism connected to the scissor-type lifting mechanism, the two ends of the scissor-type lifting mechanism along the first direction are respectively used to connect the C-arm and the detector of the medical equipment; the driving mechanism can drive the scissor-type lifting mechanism to expand or fold along the first direction. With such a configuration, the lifting device of the present invention has a simple structure, and only needs to drive the scissor-type lifting mechanism to expand or fold along the first direction through the driving mechanism to drive the detector to move up and down along the first direction, thereby adjusting the distance between the detector and the radiation source. Based on the expandability and foldability of the scissor-type lifting mechanism, the direction of the detector along the first direction can be guaranteed, and the space occupied by the lifting device can be reduced under the premise that the range of movement of the detector along the first direction remains unchanged.

[0069] Although the present invention is disclosed above with reference to preferred embodiments, the above embodiments are not intended to limit the present invention. Any person skilled in the art can utilize the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A lifting device (10), characterized in that: include: A scissor-type lifting mechanism (11), comprising a plurality of scissor-type brackets (111) connected in sequence along a first direction (m), wherein the scissor-type brackets (111) on both sides along the first direction (m) are respectively used to connect a C-shaped arm (20) and a detector (30) of a medical device; A driving mechanism (12) is connected to the scissor-type lifting mechanism (11) and can drive the plurality of scissor-type brackets (111) to unfold or fold along the first direction (m).

2. The lifting device (10) according to claim 1, characterized in that: The scissor-type bracket (111) comprises a first connecting arm (1111) and a second connecting arm (1112), wherein the first connecting arm (1111) and the second connecting arm (1112) are cross-arranged and rotatably connected to each other.

3. The lifting device (10) according to claim 2, characterized in that: In the scissor-type lifting mechanism (11) close to the C-shaped arm (20), the second connecting arm (1112) is fixed at a position along a second direction (n) different from the end connected to the adjacent scissor-type bracket (111), and the first connecting arm (1111) is movable along the second direction (n) different from the end connected to the adjacent scissor-type bracket (111); The second direction (n) is perpendicular to the first direction (m), and the second direction (n) is parallel to the plane where the scissor-type bracket (111) is located.

4. The lifting device (10) according to claim 3, characterized in that: The scissor lift mechanism (11) further comprises a first mounting base (112) and / or a second mounting base (113); In the scissor-type bracket (111) of the scissor-type lifting mechanism (11) close to the C-shaped arm (20), the second connecting arm (1112) is rotatably connected to the first mounting base (112), and the first connecting arm (1111) is rotatably connected to the driving mechanism (12); and / or, In the scissor-type bracket (111) of the scissor-type lifting mechanism (11) close to the detector (30), the first connecting arm (1111) is rotatably connected to the second mounting base (113), the second connecting arm (1112) is rotatably connected to the second mounting base (113), and the second connecting arm (1112) is movably connected to the second mounting base (113) at an end different from the end connected to the adjacent scissor-type bracket (111).

5. The lifting device (10) according to claim 2, characterized in that: The driving mechanism (12) comprises an active member (121) and a driven member (122) connected to the active member (121); the rotational motion of the active member (121) can be converted into a linear motion of the driven member (122) along a second direction (n); the driven member (122) is rotatably connected to a first connecting arm (1111) or a second connecting arm (1112) of one of the scissor-type brackets (111); the second direction (n) is perpendicular to the first direction (m), and the second direction (n) is parallel to the plane where the scissor-type bracket is located.

6. The lifting device (10) according to claim 5, characterized in that: At least a portion of the active member (121) is configured as a lead screw, and the driven member (122) is threadedly connected to the lead screw in the active member (121).

7. The lifting device (10) according to claim 2, characterized in that: The lifting device (10) comprises at least three protective substrates (13), the protective substrates (13) surrounding the scissor-type lifting mechanism (11) and being barrel-shaped or shell-shaped along the first direction (m); at least three protective substrates (13) are movably overlapped in sequence along the first direction (m) and are arranged in sequence along the second direction (n); at least three protective substrates (13) cooperate with each other to cover each of the scissor-type brackets (111); two protective substrates (13) located on both sides of the first direction (m) are used to connect the C-shaped arm (20) and the detector (30) respectively; The second direction (n) is perpendicular to the first direction (m), and the second direction (n) is parallel to the plane where the scissor-type bracket (111) is located.

8. The lifting device (10) according to claim 7, characterized in that: The lifting device (10) comprises three protective substrates (13), namely a first protective substrate (131), a second protective substrate (132) and a third protective substrate (133); the first protective substrate (131), the second protective substrate (132) and the third protective substrate (133) are sequentially away from the scissor-type lifting mechanism (11) along a second direction n; Among them, one of the scissor-type brackets (111) located between the scissor-type brackets (111) on both sides of the first direction (m) is a reference scissor-type bracket (G), and the rotation axis between the first connecting arm (1111) and the second connecting arm (1112) of the reference scissor-type bracket (G) is a reference axis (G1), and the reference axis (G1) is fixedly connected to the second protective substrate (132), and the first protective substrate (131) is provided with a through hole (1310) for the reference axis (G1) to move along the first direction (m).

9. The lifting device (10) according to claim 1, characterized in that: The lifting device (10) also includes a guiding mechanism, which includes a guide rail (141) extending along the first direction (m) and a slider (142) movably connected to the guide rail (141); between two adjacent protective substrates (13), one is installed with the guide rail (141) and the other is installed with the slider (142).

10. A medical device, characterized in that: include: A C-shaped arm (20) having two opposite inner ends, and both inner ends are located on the inner arc surface of the C-shaped arm (20); A radiation source (40) mounted on one inner end of the C-shaped arm (20); Detector (30); The lifting device (10) as described in any one of claims 1 to 9, wherein the scissor-type brackets (111) on both sides of the scissor-type lifting mechanism (11) of the lifting device (10) along the first direction (m) are respectively connected to the detector (30) and the other inner end of the C-shaped arm (20).

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