Suspension driving assembly and medical imaging system

Abstract

The invention provides a suspension driving assembly and a medical imaging system, the suspension driving assembly comprises a sky rail, a crown block and a floating structure, the sky rail is used for being fixed at a preset position, the crown block is used for being connected with imaging equipment, the crown block can move along the extension direction of the sky rail, and the floating structure limits the connection mode between the crown block and the sky rail to be a suspension type connection mode. According to the configuration, the floating structure is arranged to limit the suspended connection between the crown block and the sky rail, so that a gap is formed between the crown block and the sky rail, the crown block does not make contact with the sky rail in the moving process, friction between the crown block and the sky rail is avoided, dust and chippings are greatly reduced, noise sources can be reduced, and the cleaning requirement of an operating room is met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a suspension drive component and a medical imaging system. Background Art

[0002] Suspended digital subtraction angiography (DSA) equipment is usually used in interventional operating rooms and hybrid operating rooms. Both interventional operating rooms and hybrid operating rooms have strict requirements on the air cleanliness of the operating rooms, especially hybrid operating rooms, which have higher requirements on air cleanliness due to open surgery.

[0003] At present, the DSA equipment is usually suspended from the ceiling of the operating room by the cooperation of an overhead crane and an overhead rail, and the overhead crane can move on the overhead rail, thereby driving the DSA equipment to move. However, when the overhead crane moves on the overhead rail, a large amount of dust and debris is easily generated, and these dust and debris may enter the patient's body with the laminar flow of the operating room, affecting the safety of the operation, and also not meeting the cleanliness requirements of the operating room. Summary of the invention

[0004] The object of the present invention is to provide a suspended drive assembly and a medical imaging device to solve the problem that the existing suspended DSA device easily generates a large amount of dust and debris during operation, thereby affecting surgical safety and failing to meet the cleanliness requirements of the operating room.

[0005] In order to solve the above technical problems, based on one aspect of the present invention, the present invention provides a suspension drive assembly, which includes:

[0006] A ceiling rail, which is used to be fixed at a predetermined position;

[0007] An overhead crane, which is used to connect the imaging device, and the overhead crane is movable along the extension direction of the overhead rail;

[0008] The floating structure restricts the connection between the overhead travelling vehicle and the overhead rail to a suspended connection.

[0009] Optionally, the suspension connection mode restricted by the floating structure is an air suspension connection mode or a magnetic suspension connection mode.

[0010] Optionally, the floating structure includes a limit unit and a plurality of air flotation units, wherein the limit unit limits the freedom of movement of the overhead crane in a direction perpendicular to the extension direction of the overhead rail; the plurality of air flotation units are arranged around the limit unit, and the air flotation units are used to introduce gas so that an air gap exists between the overhead crane and the overhead rail.

[0011] Optionally, the air flotation unit includes an air vent and a plurality of air flotation holes connected to the air vent, and the plurality of air flotation holes are sequentially arranged along the axial direction of the air vent, and the air outlet direction of the air flotation holes is toward the limiting unit.

[0012] Optionally, the floating structure includes four air flotation units, which are two first air flotation units and two second air flotation units; the two first air flotation units are respectively arranged on both sides of the limiting unit along the first direction, and the air outlet direction of each of the air flotation holes of the two first air flotation units is along the first direction; the two second air flotation units are respectively arranged on both sides of the limiting unit along the second direction, and the air outlet direction of each of the air flotation holes of the two second air flotation units is along the second direction; the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are both perpendicular to the extension direction of the overhead rail.

[0013] Optionally, the axial direction of the ventilation hole is parallel to the extension direction of the ceiling rail, and / or the axial direction of the air flotation hole is perpendicular to the axial direction of the ventilation hole.

[0014] Optionally, the limiting unit includes a protruding block located on the overhead rail and a groove opened on the overhead travelling vehicle, the protruding block and the groove are snap-fitted and connected, and the groove surrounds the protruding block in its circumference, and a plurality of the air floating units are distributed around the groove.

[0015] Optionally, the suspension drive assembly includes a drive mechanism, and the drive mechanism is connected to the overhead travelling vehicle and is used to drive the overhead travelling vehicle to move.

[0016] Optionally, the driving mechanism comprises a linear motor, a stator of the linear motor is mounted on the overhead rail, and a mover of the linear motor is mounted on the overhead travelling vehicle.

[0017] According to another aspect of the present invention, the present invention further provides a medical imaging system, comprising:

[0018] A suspension drive assembly as described above;

[0019] The imaging device is connected to the overhead traveling device of the suspension driving assembly.

[0020] To sum up, in the suspension drive assembly provided by the present invention, the suspension drive assembly includes a ceiling rail, an overhead travelling car and a floating structure. The ceiling rail is used to be fixed at a predetermined position, the overhead travelling car is used to connect the imaging device, the overhead travelling car is movable along the extension direction of the ceiling rail, and the floating structure limits the connection mode between the overhead travelling car and the ceiling rail to a suspended connection mode.

[0021] With such configuration, a floating structure is provided to limit the suspended connection between the overhead crane and the overhead rail, so that a gap can be created between the overhead crane and the overhead rail. The imaging equipment driven by the overhead crane will not come into contact with the overhead rail and rub against each other during movement, which greatly reduces the generation of dust and debris, can reduce noise sources, and meet the cleanliness requirements of the operating room. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Those skilled in the art should understand that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0023] Figure 1 is a schematic diagram of a medical imaging system according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a suspension drive assembly according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Cross-sectional view along AA direction;

[0026] Figure 4 yes Figure 3 Enlarged view of middle part B;

[0027] Figure 5 yes Figure 3 Enlarged view of the middle C part;

[0028] Figure 6 is a schematic diagram of an overhead travelling crane according to an embodiment of the present invention;

[0029] Figure 7 yes Figure 6 Enlarged view of part D in the middle.

[0030] In the attached figure:

[0031] 10-Sky track;

[0032] 20-Crown crane; 21-Mounting hole;

[0033] 30-floating structure; 31-limiting unit; 311-protruding block; 312-groove; 32-air flotation unit; 321-vent; 322-air flotation hole; M-first air flotation unit; N-second air flotation unit;

[0034] 41-stator; 42-moving element;

[0035] 50-imaging device; 51-C-arm; 52-ray source; 53-detector;

[0036] 60-Install the module;

[0037] 70-Air flotation block. DETAILED DESCRIPTION

[0038] In order to make the purpose, advantages and features of the present invention clearer, the present invention is further described in detail 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, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different scales are used.

[0039] As used in the present invention, the singular forms "one", "an" and "the" include plural objects, the term "or" is generally used to include the meaning of "and / or", the term "several" is generally used to include the meaning of "at least one", and the term "at least two" is generally used to include the meaning of "two or more". In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined 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 "the proximal end" and "the distal end" generally refer to two corresponding parts, which include not only the endpoints, and the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. In addition, as used in the present invention, an element 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, and cannot be understood as indicating or implying the spatial position relationship between the two elements, that is, one element may be in any orientation such as inside, outside, above, below or on one side of another element, unless otherwise clearly indicated in the content. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Figure 1 FIG. 1 is a schematic diagram of a medical imaging system according to an embodiment of the present invention. Figure 1As shown, the medical imaging system includes an imaging device 50, and the imaging device 50 includes a C-shaped arm 51, a radiation source 52, and a detector 53. The C-shaped arm 51 has two opposite ends, the radiation source 52 is installed on one end of the C-shaped arm 51, and the detector 53 is installed on the other end of the C-shaped arm 51, and the radiation source 52 and the detector 53 are aligned. It can be understood that the radiation source 52 is a device that can emit X-rays, gamma rays or electron beams, etc., and the detector 53 is a device that can receive the radiation emitted by the radiation source 52. The cooperation of the radiation source 52 and the detector 53 can realize medical examination or treatment operations. In one embodiment, the radiation source 52 includes a tube, which can emit radiation (such as X-rays), and the detector 53 can be a flat panel detector 53. The radiation emitted by the tube passes through the patient and is received by the detector 53 for imaging processing. The imaging device 50 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 to this.

[0041] Figure 2 FIG. 1 is a schematic diagram of a suspension drive assembly according to an embodiment of the present invention. Figure 1 and Figure 2 The medical imaging system further includes a suspension drive assembly, which includes a ceiling rail 10 and a crane 20. The ceiling rail 10 is fixed at a predetermined position, such as being fixed on the ceiling of an operating room, and is usually arranged in at least two rows of side-by-side ceiling rails 10, the extension direction of which is usually a linear direction. The crane 20 is roughly plate-shaped, and the two sides of the crane 20 cooperate with the two rows of side-by-side ceiling rails 10 so that the crane 20 can move along the extension direction of the ceiling rail 10. The imaging device 50 is mounted on the crane 20 so that the crane 20 drives the imaging device 50 to move, so that the imaging device 50 has a higher degree of flexibility. As a further implementation detail, the crane 20 has a mounting hole 21. The medical imaging system further includes a mounting module 60 connected to the C-arm 51 of the imaging device 50, and the mounting module 60 is connected to the mounting hole 21 to connect the crane 20 with the imaging device 50. Figure 3 yes Figure 2 Cross-sectional view along AA direction, Figure 4 yes Figure 3 The enlarged view of part B in the middle. Figure 5 yes Figure 3 For the enlarged view of the middle C part, see Figure 3 , Figure 4 and Figure 5The suspension drive assembly also includes a floating structure 30, which is disposed between the overhead crane 20 and the overhead rail 10, and is used to limit the connection between the overhead crane 20 and the overhead rail 10 to a suspended connection, so that there is no direct physical contact between the overhead rail 10 and the overhead crane 20. When the overhead crane 20 drives the imaging device 50 to move along the overhead rail 10, there is no friction between the overhead crane 20 and the overhead rail 10, which can greatly reduce the generation of dust and debris, ensure the safety of the operation, and meet the cleanliness requirements of the operating room. Among them, the suspended connection mode limited by the floating structure 30 is an air suspension connection mode or a magnetic suspension connection mode. It can be understood that the floating structure 30 realizes the air suspension connection between the overhead crane 20 and the overhead rail 10 based on the gas dynamic and static pressure effect, thereby realizing the frictionless and vibration-free smooth movement between the overhead crane 20 and the overhead rail 10.

[0042] Furthermore, the floating structure 30 is limited to a suspended connection mode of air suspension connection mode. Figure 4 The floating structure 30 includes a limiting unit 31 and a plurality of air flotation units 32. The limiting unit 31 acts between the overhead crane 20 and the overhead rail 10 to limit the freedom of movement of the overhead crane 20 in a direction perpendicular to the extension direction of the overhead rail 10, that is, for a plane perpendicular to the extension direction of the overhead rail 10, the limiting unit 31 limits the range of movement of the overhead crane 20 on the plane. The plurality of air flotation units 32 are arranged circumferentially around the limiting unit 31. The air flotation units 32 are used to pass gas so that there is an air gap between the overhead crane 20 and the overhead rail 10, so that under the action of the limiting unit 31 and the air flotation unit 32, it is ensured that the overhead crane 20 and the overhead rail 10 will not separate in a direction perpendicular to the extension direction of the overhead rail 10, and there is a gap between the overhead crane 20 and the overhead rail 10 under the action of the air flotation unit 32, and there is no direct physical contact.

[0043] Figure 6 is a schematic diagram of an overhead travelling crane according to an embodiment of the present invention, Figure 7 yes Figure 6 In one embodiment, refer to Figure 4 and Figure 7The limiting unit 31 includes a protruding block 311 located on the ceiling rail 10 and a groove 312 provided on the overhead travelling vehicle 20. The protruding block 311 and the groove 312 are engaged and connected, and the groove 312 surrounds the protruding block 311 in its circumferential direction, so that the freedom of the overhead travelling vehicle 20 in the vertical direction relative to the ceiling rail 10 is limited under the cooperation of the groove 312 and the protruding block 311. It can be understood that the overhead travelling vehicle 20 is movable along the extension direction of the ceiling rail 10, and the protruding block 311 and the groove 312 each extend along the extension direction of the ceiling rail 10, and the protruding block 311 and the groove 312 generate relative movement along the extension direction of the ceiling rail 10. A plurality of air flotation units 32 are arranged circumferentially around the limiting unit 31, that is, a plurality of air flotation units 32 are distributed around the groove 312, and the air flotation units 32 pass gas into the groove 312, so that there is an air gap at the joint surface between the protrusion block 311 and the groove 312, thereby forming an air gap between the overhead travelling vehicle 20 and the overhead rail 10. Exemplarily, the shapes of the protrusion block 311 and the groove 312 are adapted to each other, such as being rectangular.

[0044] In one embodiment, continue to refer to Figure 4 , Figure 5 and Figure 7 The air flotation unit 32 includes an air vent 321 and a plurality of air flotation holes 322 connected to the air vent 321, and the plurality of air flotation holes 322 are arranged in sequence along the axial direction of the air vent 321, and the air outlet direction of the air flotation hole 322 is toward the limiting unit 31, so that when the limiting unit 31 limits the range of movement of the overhead travelling vehicle 20, there is an air gap between the overhead travelling vehicle 20 and the overhead rail 10, that is, the air outlet direction of the air flotation hole 322 is toward the inside of the groove 312, and the air flotation hole 322 is connected to the groove 312, and a plurality of air flotation units 32 are arranged around the groove 312, ensuring that the air flotation holes 322 corresponding to the plurality of air flotation units 32 are arranged around the circumference of the groove 312, so that the gas is introduced from the air vent 321, and after the gas is discharged from the air flotation hole 322, there is an air gap between the groove 312 and the protruding block 311. Optionally, the axial direction of the air hole 321 is parallel to the extension direction of the ceiling rail 10, and the axial direction of the air flotation hole 322 is perpendicular to the axial direction of the air hole 321. Preferably, the axial direction of the air flotation hole 322 is perpendicular to the joint surface between the protrusion block 311 and the groove 312. In some other embodiments, the axial direction of the air hole 321 may also be at an angle to the extension direction of the ceiling rail 10.

[0045] For example, see Figure 4The floating structure 30 includes four air flotation units 32, two first air flotation units M and two second air flotation units N, and the two first air flotation units M are respectively arranged on both sides of the limiting unit 31 along the first direction (that is, arranged on both sides of the protruding block 311 along the first direction), and the air outlet directions of the air flotation holes 322 of the two first air flotation units M are along the first direction and opposite to each other along the first direction. The two second air flotation units N are respectively arranged on both sides of the limiting unit 31 along the second direction (that is, arranged on both sides of the protruding block 311 along the second direction), and the air outlet directions of the air flotation holes 322 of the two second air flotation units N are along the second direction and opposite to each other along the second direction. The first and second directions are perpendicular to each other, and the first and second directions are both perpendicular to the extension direction of the sky rail 10. In this way, the pressures generated by the gases introduced into the two first air flotation units M in the first direction offset each other, so that the overhead crane 20 is suspended relative to the overhead rail 10 in the first direction, and the pressures generated by the gases introduced into the two second air flotation units N in the second direction offset each other, so that the overhead crane 20 is suspended relative to the overhead rail 10 in the second direction, and the first direction and the second direction are perpendicular to each other, and the overhead crane 20 can be constrained in four directions relative to the overhead rail 10, ensuring that the overhead crane 20 is suspended on the overhead rail 10. In actual application scenarios, the plate-shaped overhead crane 20 is parallel to the horizontal plane, the first direction is the horizontal direction, and the second direction is the gravity direction. The axes of the air flotation holes 322 of the two first air flotation units M in the horizontal direction can be collinear or non-collinear (collinear, such as Figure 4 The axes of the air flotation holes 322 of the two second air flotation units N in the gravity direction may be collinear or non-collinear (non-collinear as shown in FIG. Figure 4 The upper and lower air flotation holes 322 are shown).

[0046] As a further implementation detail, the suspension drive assembly also includes an air flotation block 70, which can be integrally formed with the overhead travelling vehicle 20 or detachably connected to the overhead travelling vehicle 20. The air flotation unit 32 is disposed on the air flotation block 70, and the groove 312 is located on the air flotation block 70. Furthermore, the groove 312 passes through the air flotation block 70 along the extension direction of the overhead rail 10.

[0047] In some other embodiments, the suspended connection mode restricted by the floating structure 30 is a magnetic suspension connection mode. In specific implementation, the protrusion block 311 can be magnetized, the inner surface of the groove 312 can be magnetized, or the air floating unit 32 can be configured as a magnetic unit, so that there is a gap between the outer surface of the protrusion block 311 and the inner surface of the groove 312, thereby realizing a contactless connection between the overhead crane 20 and the overhead rail 10.

[0048] Further, the suspension drive assembly includes a drive mechanism, which is connected to the overhead travelling vehicle 20 and is used to drive the overhead travelling vehicle 20 to move along the extension direction of the guide rail. Preferably, the drive mechanism includes a linear motor, a stator 41 of the linear motor is mounted on the overhead rail 10, and a mover 42 of the linear motor is mounted on the overhead travelling vehicle 20. In this way, a linear motor is selected as the drive mechanism, the stator 41 is mounted on the overhead rail 10, the mover 42 is mounted on the overhead travelling vehicle 20, and a certain air gap is maintained between the mover 42 and the stator 41, so as to realize the driving of the overhead travelling vehicle 20.

[0049] In summary, in the suspension drive assembly provided by the present invention, the suspension drive assembly includes a ceiling rail, a trolley and a floating structure, the ceiling rail is used to be fixed at a predetermined position, the trolley is used to connect the imaging device, the trolley is movable along the extension direction of the ceiling rail, and the floating structure limits the connection between the trolley and the ceiling rail to a suspended connection. In such a configuration, by setting a floating structure to limit the suspended connection between the trolley and the ceiling rail, a gap can be created between the trolley and the ceiling rail, and the imaging device driven by the trolley will not contact the ceiling rail and rub against each other during the movement, which greatly reduces the generation of dust and debris, can reduce noise sources, and meet the cleaning requirements of the operating room.

[0050] The above description is only a description of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A suspension drive assembly, characterized in that: include: A ceiling rail (10) for fixing at a predetermined position; An overhead travelling vehicle (20) used for connecting the imaging device (50), wherein the overhead travelling vehicle (20) is movable along the extension direction of the overhead rail (10); A floating structure (30) limits the connection between the overhead travelling vehicle (20) and the overhead rail (10) to a suspended connection.

2. The suspension drive assembly according to claim 1, characterized in that: The suspension connection mode restricted by the floating structure (30) is an air suspension connection mode or a magnetic suspension connection mode.

3. The suspension drive assembly according to claim 1, characterized in that: The floating structure (30) comprises a limiting unit (31) and a plurality of air floating units (32); the limiting unit (31) limits the freedom of movement of the overhead travelling vehicle (20) in a direction perpendicular to the extension direction of the overhead rail (10); the plurality of air floating units (32) are arranged around the limiting unit (31); the air floating units (32) are used to introduce gas so that an air gap exists between the overhead travelling vehicle (20) and the overhead rail (10).

4. The suspension drive assembly according to claim 3, characterized in that: The air flotation unit (32) comprises an air vent (321) and a plurality of air flotation holes (322) connected to the air vent (321), and the plurality of air flotation holes (322) are arranged in sequence along the axial direction of the air vent (321), and the air outlet direction of the air flotation holes (322) is toward the limiting unit (31).

5. The suspension drive assembly according to claim 4, characterized in that: The floating structure (40) comprises four air flotation units (32), namely two first air flotation units (M) and two second air flotation units (N); the two first air flotation units (M) are respectively arranged on both sides of the limiting unit (31) along a first direction, and the air outlet direction of each of the air flotation holes (322) of the two first air flotation units (M) is along the first direction; the two second air flotation units (N) are respectively arranged on both sides of the limiting unit (31) along a second direction, and the air outlet direction of each of the air flotation holes (322) of the two second air flotation units (N) is along the second direction; the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are both perpendicular to the extension direction of the overhead rail (10).

6. The suspension drive assembly according to claim 4, characterized in that: The axial direction of the ventilation hole (321) is parallel to the extension direction of the ceiling rail (10), and / or the axial direction of the air flotation hole (322) is perpendicular to the axial direction of the ventilation hole (321).

7. The suspension drive assembly according to claim 3, characterized in that: The limiting unit (31) comprises a protruding block (311) located on the overhead rail (10) and a groove (312) provided on the overhead travelling vehicle (20); the protruding block (311) and the groove (312) are engaged with each other, and the groove (312) surrounds the protruding block (311) in its circumferential direction; and a plurality of the air flotation units (32) are distributed around the groove (312).

8. The suspension drive assembly according to claim 1, characterized in that: The suspension drive assembly comprises a drive mechanism, which is connected to the overhead travelling vehicle (20) and is used to drive the overhead travelling vehicle (20) to move.

9. The suspension drive assembly according to claim 8, characterized in that: The driving mechanism comprises a linear motor, a stator (41) of the linear motor is mounted on the overhead rail (10), and a mover (42) of the linear motor is mounted on the overhead travelling vehicle (20).

10. A medical imaging system, characterized in that: include: The suspension drive assembly according to any one of claims 1 to 9; An imaging device (50) is connected to the overhead traveling vehicle (20) of the suspension drive assembly.

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