Connecting cable of DSA equipment and DSA equipment

Abstract

The utility model relates to the technical field of medical instruments, in particular to a DSA equipment connecting cable and DSA equipment, the DSA equipment comprises an electric device, the connecting cable is used for being connected with the electric device, and the connecting cable comprises an outer protective sleeve, a first containing space is formed in the outer protective sleeve, and a second containing space is formed in the inner protective sleeve; the plurality of inner wires are arranged in the first accommodating space, each inner wire comprises an inner protective sleeve and a core wire, a second accommodating space is arranged in the inner protective sleeve, and the core wire is arranged in the second accommodating space; and the outer filling piece is arranged in the first accommodating space, and the outer filling piece is arranged between the two adjacent inner wires and / or between the inner wall of the first accommodating space and the inner wires. According to the connecting cable of the DSA equipment and the DSA equipment, the problems that an existing cable is poor in bending characteristic and torsion characteristic and poor in movement performance can be solved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a connection cable for a DSA device and the DSA device itself. Background Technology

[0002] A DSA (Digital Subtraction Angiography) device is a medical device that uses two images taken before and after the injection of contrast agent to digitally input and process the images. Through subtraction, enhancement, and re-imaging processes, it obtains clear pure vascular images. With its advantages such as being able to more clearly present small artery branches, DSA devices have gained increasingly widespread use.

[0003] In DSA equipment, in order to power the circuit boards, flat panel detectors and speed limiters and to enable signal interaction between them and other hardware, it is often necessary to set up cables to connect the circuit boards and the electrical components. However, the existing cables have poor bending and torsional characteristics and poor motion performance. There is room for improvement in the lifespan and reliability of the cables. Utility Model Content

[0004] This application provides a connection cable and DSA device for a DSA device, which can improve the problems of poor bending and torsional characteristics and poor motion performance of existing cables.

[0005] In a first aspect, embodiments of this application provide a connection cable for a DSA device, the DSA device including electrical components, the connection cable being used to connect to the electrical components, and the connection cable including:

[0006] The outer protective sleeve has a first accommodating space inside.

[0007] Multiple inner conductors are all disposed within the first accommodating space. Each inner conductor includes an inner protective sleeve and a core wire. A second accommodating space is provided inside the inner protective sleeve, and the core wire is disposed within the second accommodating space.

[0008] An outer filler is disposed within the first accommodating space, wherein the outer filler is disposed between two adjacent inner conductors and / or between the inner wall of the first accommodating space and the inner conductors.

[0009] The connection cable for the DSA device provided in this embodiment has the following advantages:

[0010] Because the outer protective sleeve has a first accommodating space inside, and multiple inner conductors are arranged in the first accommodating space, the inner conductors include the inner protective sleeve and the core wire. The inner protective sleeve has a second accommodating space inside, and the core wire is arranged in the second accommodating space. The outer filler is arranged in the first accommodating space, between two adjacent inner conductors and / or between the inner wall of the first accommodating space and the inner conductor. Therefore, the connecting cable can form a composite structure, thereby enhancing the bending and torsional characteristics of the connecting cable, improving its motion performance, and increasing the life and reliability of the connecting cable.

[0011] In some embodiments, the inner protective sleeve is in contact with the inner wall of the first accommodating space, and the outer protective sleeve is made of the same material as the inner protective sleeve.

[0012] By adopting the above solution, when the movement of the connecting cable causes the outer protective sleeve and the inner protective sleeve to rub against each other, since the outer protective sleeve and the inner protective sleeve are made of the same material, their friction performance is the same, thus reducing the degree of wear on both.

[0013] In some embodiments, both the outer protective sleeve and the inner protective sleeve are made of PUR material.

[0014] By adopting the above solution, the outer and inner protective sleeves can have better elasticity, superior mechanical resistance, and are oil-resistant, wear-resistant, and can maintain good mechanical resistance in low-temperature environments. Under the same conditions (bending radius, stroke, acceleration, temperature), its service life is longer than that of PVC.

[0015] In some embodiments, the inner conductor further includes a shielding layer located within the second accommodating space, and the core wire is disposed inside the shielding layer.

[0016] By adopting the above solution, the EMC protection capability of the connecting cable can be improved.

[0017] In some embodiments, the shielding layer is made of woven shielding wires at a weaving angle of 40°-50°.

[0018] By adopting the above solution, the stress during the movement of the connecting cable can be better offset, adapting to a smaller bending radius and a shorter torsional length, and preventing damage to the shielding layer.

[0019] In some embodiments, two core wires are provided, and the two core wires form a twisted pair structure, wherein the pitch of the twisted pair is 10 to 12 times the outer diameter of the twisted pair.

[0020] By adopting the above solution, the motion performance of the core wire can be improved.

[0021] In some embodiments, the core wire includes an inner core and an insulation layer, the inner core being disposed inside the insulation layer.

[0022] By adopting the above solution, the inner core can be better insulated and protected.

[0023] In some embodiments, an inner conductor includes a plurality of core wires, and the inner conductor further includes an inner filler disposed within the second accommodating space, and the inner filler is disposed between two adjacent core wires and / or between the inner wall of the second accommodating space and the core wires.

[0024] By adopting the above solution, the internal filler can better prevent multiple core wires from shifting or loosening.

[0025] In some embodiments, the outer diameter of the outer protective sleeve is 13.50 mm to 14.10 mm; and / or, the thickness of the inner protective sleeve is 0.36 mm to 0.60 mm.

[0026] By adopting the above solution, the outer and inner protective sleeves can be made relatively soft while ensuring sufficient wear resistance, thereby improving the motion performance of the connecting cable.

[0027] Secondly, embodiments of this application provide a DSA device, including an electrical component, a C-arm device, and a connecting cable as described in the first aspect. The connecting cable connects the electrical component to the C-arm device, and the C-arm device can drive the connecting cable to move and / or rotate.

[0028] The DSA device provided in this application has the following advantages:

[0029] Because the outer protective sleeve of the connecting cable has a first accommodating space inside, and multiple inner conductors are arranged in the first accommodating space, the inner conductors include the inner protective sleeve and the core wire. The inner protective sleeve has a second accommodating space inside, and the core wire is arranged in the second accommodating space. The outer filler is arranged in the first accommodating space, between two adjacent inner conductors and / or between the inner wall of the first accommodating space and the inner conductor. Therefore, the connecting cable can form a composite structure, thereby enhancing the bending and torsional characteristics of the connecting cable, improving its motion performance, and increasing the life and reliability of the connecting cable. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a DSA device in one embodiment of this application;

[0032] Figure 2 yes Figure 1 The diagram shows the structure of the connecting cables in the DSA device.

[0033] Figure 3 This is a partial structural diagram of the DSA device in another embodiment of this application.

[0034] The markings in the diagram mean:

[0035] 1000, DSA equipment;

[0036] 100. Connecting cables;

[0037] 10. Outer protective sleeve;

[0038] 101. First accommodating space; 11. Packaging material;

[0039] 20. Internal conductor;

[0040] 201. Second accommodating space; 21. Inner protective sleeve; 22. Core wire; 221. Inner core; 222. Insulation layer; 23. Shielding layer; 24. Inner filler;

[0041] 30. External filler;

[0042] 200. Bending protection components. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] In this specification, references to "one embodiment," "some embodiments," or simply "embodiment" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0047] To illustrate the technical solution of this application, the following description is provided in conjunction with specific accompanying drawings and embodiments.

[0048] A digital subtraction angiography (DSA) device is a medical device that takes two images before and after the injection of contrast agent, inputs them into a digital processing system, and obtains clear pure vascular images through subtraction, enhancement, and re-imaging processes. With its advantages such as being able to more clearly present small artery branches, DSA devices have gained increasingly widespread use.

[0049] In DSA equipment, in order to power the circuit boards, flat panel detectors and speed limiters and to enable signal interaction between them and other hardware, it is often necessary to set up cables to connect the circuit boards and the electrical components. However, the existing cables have poor bending and torsional characteristics and poor motion performance. There is room for improvement in the lifespan and reliability of the cables.

[0050] In view of this, this application provides a connecting cable for a DSA device and a DSA device. Since the outer protective sleeve has a first accommodating space inside, and multiple inner conductors are disposed in the first accommodating space, the inner conductors include an inner protective sleeve and a core wire. The inner protective sleeve has a second accommodating space inside, and the core wire is disposed in the second accommodating space. The outer filler is disposed in the first accommodating space, between two adjacent inner conductors and / or between the inner wall of the first accommodating space and the inner conductor. Therefore, the connecting cable can form a composite structure, thereby enhancing the bending and torsional characteristics of the connecting cable, improving its motion performance, and increasing the life and reliability of the connecting cable.

[0051] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the DSA device 1000 in one embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the structure of the connecting cable 100 in the DSA device 1000 shown.

[0052] In a first aspect, embodiments of this application provide a connection cable 100 for a DSA device 1000. The DSA device 1000 includes electrical components and a C-arm device. The connection cable 100 connects the electrical components and the C-arm device, and the C-arm device can drive the connection cable 100 to move and / or rotate.

[0053] The DSA device 1000 can be a floor-standing DSA device or a suspended DSA device.

[0054] In this embodiment, the DSA device 1000 is a floor-standing DSA device.

[0055] The electrical components can be boards, flat panel detectors, and speed limiters, etc. The connecting cable 100 can be used to power the electrical components or for signal exchange with other hardware.

[0056] The connecting cable 100 includes an outer protective sleeve 10, a plurality of inner conductors 20, and at least one outer filler 30.

[0057] The outer protective sleeve 10 has a first accommodating space 101 inside.

[0058] Multiple inner conductors 20 are disposed within the first accommodating space 101. Each inner conductor 20 includes an inner protective sleeve 21 and a core wire 22. The inner protective sleeve 21 has a second accommodating space 201 inside, and the core wire 22 is disposed within the second accommodating space 201.

[0059] The core wire 22 can be used for current or signal transmission. There is a separate inner protective sleeve 21 between different inner conductors 20. The thickness of the inner protective sleeve 21 can be optimized synchronously to ensure the performance of the inner conductors 20 while reducing the diameter of the inner conductors 20.

[0060] The outer filler 30 is disposed within the first accommodating space 101, and the outer filler 30 is disposed between two adjacent inner conductors 20 and / or between the inner wall of the first accommodating space 101 and the inner conductors 20.

[0061] One or more outer filler 30 may be provided. When multiple outer filler 30 are provided, some outer filler 30 are provided between two adjacent inner conductors 20, and some outer filler 30 are provided between the inner wall of the first accommodating space 101 and the inner conductor 20.

[0062] The outer filler 30 may include aramid or cotton yarn. Aramid has better strength and tensile strength. By setting the outer filler 30, the multiple inner conductors 20 can be prevented from shifting or loosening.

[0063] As can be seen from the above, the connecting cable 100 of the DSA device 1000 provided in this application embodiment has a first accommodating space 101 inside the outer protective sleeve 10, and multiple inner conductors 20 are all disposed in the first accommodating space 101. The inner conductor 20 includes an inner protective sleeve 21 and a core wire 22. The inner protective sleeve 21 has a second accommodating space 201 inside, and the core wire 22 is disposed in the second accommodating space 201. The outer filler 30 is disposed in the first accommodating space 101, between two adjacent inner conductors 20 and / or between the inner wall of the first accommodating space 101 and the inner conductor 20. Therefore, the connecting cable 100 can form a composite structure, thereby enhancing the bending and torsional characteristics of the connecting cable 100, improving its motion performance, and increasing the life and reliability of the connecting cable 100.

[0064] Optionally, the DSA device 1000 also includes a bend protection element 200, which may be a 3D cable chain or a corrugated pipe, and the connecting cable 100 is located inside the bend protection element 200.

[0065] This configuration provides better protection for the connecting cable 100.

[0066] In this embodiment, the bending protection component 200 is a 3D cable chain.

[0067] Please continue to refer to this. Figure 1 and Figure 2 The inner protective sleeve 21 is in contact with the inner wall of the first accommodating space 101, and the outer protective sleeve 10 is made of the same material as the inner protective sleeve 21.

[0068] By adopting the above solution, when the movement of the connecting cable 100 causes the outer protective sleeve 10 and the inner protective sleeve 21 to rub against each other, since the outer protective sleeve 10 and the inner protective sleeve 21 are made of the same material, their friction performance is the same, thus reducing the degree of wear of the two.

[0069] For example, both the outer protective sleeve 10 and the inner protective sleeve 21 can be made of PVC (Polyvinyl Chloride), PE (Polyethylene), or TPE (Thermoplastic elastomer), etc. The outer protective sleeve 10 may include a wrapping material 11.

[0070] Optionally, both the outer protective sleeve 10 and the inner protective sleeve 21 are made of PUR (Polyurethane).

[0071] This design allows the outer protective sleeve 10 and the inner protective sleeve 21 to have good elasticity, excellent mechanical resistance, and to be oil-resistant, wear-resistant, and maintain good mechanical resistance even at low temperatures. Under the same conditions (bending radius, stroke, acceleration, and temperature), its service life is longer than that of PVC.

[0072] In this embodiment, the inner conductor 20 further includes a shielding layer 23, which is located within the second accommodating space 201, and the core wire 22 is disposed inside the shielding layer 23.

[0073] By adopting the above solution, the EMC protection (EMC, Electromagnetic Compatibility) capability of the connecting cable 100 can be improved.

[0074] Different braiding angles result in different tensile stresses on the shielding layer 23. In order to better counteract the stress during the movement of the connecting cable 100 and prevent damage to the shielding layer 23, the shielding layer 23 may optionally be made of braided shielding wire with a braiding angle of 40°-50°, such as 40°, 42°, 45°, 47° or 50°.

[0075] This design better counteracts the stress during the movement of the connecting cable 100, accommodates a smaller bending radius and a shorter torsional length, and prevents damage to the shielding layer 23.

[0076] It should be noted that the braiding density (coverage) of the shielding wires in the shielding layer 23 is ≥85%, which can better improve the EMC protection capability of the connecting cable 100. The shielding wires may include tinned copper wire and carbon fiber, etc.

[0077] In this embodiment, two core wires 22 are provided, and the two core wires 22 form a twisted pair structure. The pitch of the twisted pair is 10 to 12 times the outer diameter of the twisted pair, such as 10, 11 or 12 times.

[0078] By adopting the above scheme, the motion performance of the core wire 22 can be improved.

[0079] It should be noted that the pitch of twisted-pair cables is designed based on the outer diameter of the twisted pair, generally with a maximum of 15 times the outer diameter. However, according to dynamic usage requirements, the pitch should not be too large. If core 22 is a signal control line, twisted-pair cables reduce cable transmission attenuation, improve anti-interference capabilities, and enhance mechanical strength during dynamic use.

[0080] Optionally, the core wire 22 includes an inner core 221 and an insulation layer 222, with the inner core 221 disposed inside the insulation layer 222.

[0081] This design provides better insulation protection for the inner core 221.

[0082] Please refer to Figure 1 and Figure 2 In this embodiment, an inner conductor 20 includes a plurality of core wires 22. The inner conductor 20 also includes an inner filler 24. The inner filler 24 is disposed in the second accommodating space 201, and the inner filler 24 is disposed between two adjacent core wires 22 and / or between the inner wall of the second accommodating space 201 and the core wires 22.

[0083] By adopting the above solution, the inner filler 24 can better prevent the multiple core wires 22 from shifting or loosening.

[0084] It should be noted that one or more inner filler elements 24 may be provided. When multiple inner filler elements 24 are provided, some inner filler elements 24 are provided between two adjacent core wires 22, and some inner filler elements 24 are provided between the inner wall of the second accommodating space 201 and the inner conductor 20.

[0085] For example, the inner filling 24 may include aramid or cotton yarn, etc.

[0086] Optionally, the outer diameter of the outer protective sleeve 10 is 13.50mm-14.10mm, such as 13.50mm, 13.65mm, 13.80mm, 13.95mm or 14.10mm; and / or, the thickness of the inner protective sleeve 21 is 0.36mm-0.60mm, such as 0.36mm, 0.48mm or 0.60mm.

[0087] This design allows the outer protective sleeve 10 and the inner protective sleeve 21 to be relatively soft while ensuring sufficient wear resistance, thereby improving the motion performance of the connecting cable 100.

[0088] For example, the multiple inner conductors 20 may be two groups of A conductors, one group of B conductors, and one group of C conductors.

[0089] Among them, the specifications of the A group conductors are 1P×20AWG, and the corresponding outer diameter of the inner sheath is 4.6mm.

[0090] The specifications of the B group conductors are 2P×22AWG, with a corresponding outer diameter of 5.3mm for the inner sheath (and an outer diameter of 1.2mm for the insulation layer 222). The insulation layer 222 is the outer sheath of the core wire 22.

[0091] The specifications for Group C conductors are 3P×24AWG (insulation layer 222 outer diameter is 1.2mm), and insulation layer 222 is the outer sheath of core wire 22. Core wire 22 uses the optimal combination of diameter, length and pitch of a single conductor to achieve optimal motion performance.

[0092] This application embodiment optimizes the structure and materials of multiple inner conductors 20 to enhance the motion characteristics of the cable in 3D cable chains and corrugated pipes. The material design is optimized to enhance the friction performance of the outer protective sleeve 10 of the cable. At the same time, the structural design is optimized to enhance the bending and torsion characteristics of the inner conductors 20 and increase the shielding effect of the inner conductors 20 cable, thus obtaining a high-performance composite motion cable.

[0093] Please refer to Figure 3 , Figure 3 This is a partial structural diagram of the DSA device 1000 in another embodiment of this application.

[0094] In another embodiment, the DSA device 1000 is a suspended DSA device, the bending protection component 200 is a corrugated pipe, and the aforementioned connecting cable 100 is installed inside the corrugated pipe.

[0095] It should be noted that most of the cables currently in use are not composite sports cables or are simply optimized conductors and outer protective sheaths with a thickness of 10 mm to increase cable reliability. Such cables meet standard testing conditions, but cannot meet the requirements for testing conditions that exceed the standard.

[0096] The cable torsion test standard is a lifespan test under a torsion angle of ±180° per meter. However, the DSA equipment 1000's corrugated pipe is tested under a torsion angle of ±145° per 0.3-0.4 meters. When conventional cables and the connecting cable 100 in the above embodiment are tested under the same conditions, the results show that the shielding layer of the conventional cable is severely damaged after a 3-year lifespan test, while the shielding layer 23 of the connecting cable 100 in the above embodiment remains undamaged after a 10-year lifespan test.

[0097] Secondly, embodiments of this application provide a DSA device 1000, which includes electrical components, a C-arm device, and a connecting cable 100 as described in the first aspect. The connecting cable 100 connects the electrical components and the C-arm device, and the C-arm device can drive the connecting cable 100 to move and / or rotate.

[0098] The DSA device 1000 provided in this application embodiment has a first accommodating space 101 inside the outer protective sleeve 10 of the connecting cable 100. Multiple inner conductors 20 are disposed in the first accommodating space 101. The inner conductor 20 includes an inner protective sleeve 21 and a core wire 22. The inner protective sleeve 21 has a second accommodating space 201 inside, and the core wire 22 is disposed in the second accommodating space 201. The outer filler 30 is disposed in the first accommodating space 101. The outer filler 30 is disposed between two adjacent inner conductors 20 and / or between the inner wall of the first accommodating space 101 and the inner conductor 20. Therefore, the connecting cable 100 can form a composite structure, thereby enhancing the bending and torsional characteristics of the connecting cable 100, improving its motion performance, and increasing the life and reliability of the connecting cable 100.

[0099] It should be noted that the DSA device 1000 provided in this application embodiment may also include a base, a robotic arm, a processing system, a control system, and an imaging system.

[0100] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A connection cable of a DSA device, characterized in that, The DSA device (1000) comprises electrical devices, the connecting cable (100) is used for being connected with the electrical devices, and the connecting cable (100) comprises: An outer protective sleeve (10) internally provided with a first accommodating space (101); A plurality of inner conductive lines (20) are arranged in the first accommodating space (101), the inner conductive line (20) comprises an inner protective sleeve (21) and a core wire (22), the inner protective sleeve (21) is internally provided with a second accommodating space (201), and the core wire (22) is arranged in the second accommodating space (201); An outer filler (30) is arranged in the first accommodating space (101), and the outer filler (30) is arranged between adjacent two inner conductive lines (20) and / or between the inner wall of the first accommodating space (101) and the inner conductive line (20).

2. The connection cable of the DSA device according to claim 1, wherein, The inner protective sleeve (21) is in contact with the inner wall of the first accommodating space (101), and the material of the outer protective sleeve (10) is the same as that of the inner protective sleeve (21).

3. The connection cable of the DSA device according to claim 2, wherein, The material of the outer protective sleeve (10) and the material of the inner protective sleeve (21) are both PUR.

4. The connection cable of the DSA device according to claim 1, wherein, The inner conductive line (20) further comprises a shielding layer (23), the shielding layer (23) is located in the second accommodating space (201), and the core wire (22) is arranged in the inner shielding layer (23).

5. The connection cable of the DSA device according to claim 4, characterized in that, The shielding layer (23) is woven by shielding wires, and the weaving angle of the shielding wires is 40°-50°.

6. The connection cable of the DSA device according to claim 1, wherein, The core wire (22) is provided in two and constitutes a twisted pair structure, and the pitch of the twisted pair is 10-12 times of the outer diameter of the twisted pair.

7. The connection cable of the DSA device according to claim 1, wherein, The core wire (22) comprises an inner core (221) and an insulating layer (222), and the inner core (221) is arranged in the inner insulating layer (222).

8. The connection cable of a DSA device according to any one of claims 1 to 7, characterized in that, One inner conductive line (20) comprises a plurality of core wires (22), and the inner conductive line (20) further comprises an inner filler (24), the inner filler (24) is arranged in the second accommodating space (201), and the inner filler (24) is arranged between adjacent two core wires (22) and / or between the inner wall of the second accommodating space (201) and the core wire (22).

9. The connection cable of a DSA device according to any one of claims 1 to 7, characterized in that, The outer diameter of the outer protective sleeve (10) is 13.50-14.10 mm; and / or, the thickness of the inner protective sleeve (21) is 0.36-0.60 mm.

10. A DSA device, comprising: The DSA device (1000) comprises electrical devices, a C-shaped arm device and the connecting cable (100) as claimed in any one of claims 1-9, the connecting cable (100) connects the electrical devices and the C-shaped arm device, and the C-shaped arm device can drive the connecting cable (100) to move and / or rotate.

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