Coil binding apparatus and method
By combining binding components, guiding components, and pressure sensors, the automatic binding of flexible coils in the magnetic resonance imaging system is achieved, solving the problems of cumbersome operation and patient comfort, and improving scanning efficiency and coil lifespan.
Patent Information
- Application Number
- CN202310560417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-17
- Publication Date
- 2026-06-16
- Estimated Expiration
- 2043-05-17
AI Technical Summary
In the existing technology, the binding operation of flexible coils in magnetic resonance systems is cumbersome and time-consuming, and it is difficult to adapt to the needs of patients of different body types, affecting patient comfort and the lifespan of the coils.
By employing a combination of binding components, guiding components, pressure sensors, and controllers, the flexible coil is automatically bound by detecting the pressure of the object to be tested and automatically adjusting the tension of the binding and guiding components.
It simplifies the binding process, improves patient comfort and scanning efficiency, reduces coil wear and contamination, and adapts to the needs of patients of different body types.
Smart Images

Figure CN116500526B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnetic resonance imaging, and more specifically, to a coil bonding device and method. Background Technology
[0002] Flexible coils are widely used in magnetic resonance imaging (MRI) systems, particularly for scanning the torso and joints. Due to their flexibility, flexible coils can be bent into various curvatures; however, depending on the scanning area, the coil must maintain a close fit to the area to ensure image quality. The conventional method is to use straps to bind the shape of the flexible coil and Velcro to secure it.
[0003] Figure 1 This is a schematic diagram of a traditional coil binding method in existing technology, such as... Figure 1 As shown, in traditional products, the coil straps are secured by securing the two ends with strap slots on both sides of the bed board, and then the coil and the patient are secured by fastening two separate straps on each side with Velcro. These operations require a significant amount of manual labor, and the tightness of the straps also needs to be manually adjusted, which greatly compromises patient comfort.
[0004] Manually operating the coil binding method has several drawbacks. First, it is tedious, time-consuming, and labor-intensive, as the placement and tightness of the binding vary from person to person. Second, it may reduce patient comfort, as it is difficult to control the placement and tightness of the binding for patients of different body types. Third, the repeated tightening and loosening of the binding can cause wear and dirt to the coil itself.
[0005] There is currently no effective solution to the problem of the inability to automatically bind flexible coils in magnetic resonance systems. Summary of the Invention
[0006] This invention provides a coil bonding device and method to at least solve the technical problem of the inability to automatically bond flexible coils in a magnetic resonance system.
[0007] According to one aspect of the present invention, a coil bonding device is provided, comprising: a bonding component including a first bonding component disposed at a first end of a flexible coil and a second bonding component disposed at a second end of the flexible coil, wherein the first end and the second end are opposite ends of the flexible coil, and the flexible coil is used to cover the surface of an object to be tested for magnetic resonance detection; a guiding component including a first guiding groove disposed on a first long side of a supporting component and a second guiding groove disposed on a second long side of the supporting component, wherein the first long side and the second long side are opposite ends of the supporting component, the supporting component is used to support the object to be tested, the first guiding groove and the first bonding component cooperate under tension, and the second guiding groove and the second bonding component cooperate under tension; a pressure sensor disposed on the contact surface between the flexible coil and the object to be tested, used to detect the pressure of the flexible coil on the object to be tested; and a controller used to control the tension of the first guiding groove on the first bonding component and the tension of the second guiding groove on the second bonding component according to the pressure of the flexible coil on the object to be tested.
[0008] Optionally, the binding component includes an airbag for generating friction with the guide component after inflation; the coil binding device further includes an air pressure pump, wherein the air pressure pump provides positive pressure to the airbag through a first ventilation channel, causing the airbag to inflate in the guide component and form an air seal; the air pressure pump provides negative pressure to the guide component through a second ventilation channel, causing the guide component to exert a pulling force on the binding component.
[0009] Optionally, the controller is further configured to control the air pressure pump to adjust the positive pressure of the first ventilation channel and the negative pressure of the second ventilation channel according to the pressure exerted by the flexible coil on the object to be detected.
[0010] Optionally, the controller is further configured to, when the pressure of the flexible coil on the object to be tested is lower than a preset threshold, control the positive pressure of the first ventilation channel to be at a first pressure threshold and increase the negative pressure of the second ventilation channel, wherein, when the positive pressure of the first ventilation channel is at the first pressure threshold, the airbag expands and forms an air seal with the guide component, allowing the binding component to be pulled by the negative pressure of the second ventilation channel; the controller is further configured to, when the pressure of the flexible coil on the object to be tested is not lower than the preset threshold, control the positive pressure of the first ventilation channel to be at a second pressure threshold and stop changing the negative pressure of the second ventilation channel, wherein, the second pressure threshold is greater than the first pressure threshold, and when the positive pressure of the first ventilation channel is at the second pressure threshold, the friction between the airbag and the guide component reaches its maximum value.
[0011] Optionally, the binding component includes a first electromagnetic device; the guiding component includes a second electromagnetic device; wherein the first electromagnetic device and the second electromagnetic device are subjected to magnetic force, causing the guiding component to exert a pulling force on the binding component.
[0012] Optionally, the controller is further configured to control the magnetic force between the first electromagnetic device and the second electromagnetic device based on the pressure exerted by the flexible coil on the object to be detected.
[0013] Optionally, the controller is further configured to increase the current of the first electromagnetic device and the second electromagnetic device and increase the magnetic force between the first electromagnetic device and the second electromagnetic device when the pressure of the flexible coil on the object to be tested is lower than a preset threshold; the controller is further configured to lock the current of the first electromagnetic device and the second electromagnetic device when the pressure of the flexible coil on the object to be tested is not lower than the preset threshold.
[0014] Optionally, the coil bonding device further includes: a power supply, used to provide a negative phase current to the first electromagnetic device under the control of the controller, so that the first electromagnetic device generates a negative electromagnetic force; and to provide a positive phase current to the second electromagnetic device, so that the second electromagnetic device generates a positive electromagnetic force.
[0015] Optionally, the guiding component includes: a guiding groove for guiding the binding component to engage under tension; and a cover plate connected to the guiding groove via a hinge structure for locking the connection between the guiding component and the binding component.
[0016] According to another aspect of the present invention, a coil bonding method is also provided, characterized in that it includes: detecting the pressure of a flexible coil on an object to be tested, wherein the flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection, and bonding components are provided at both ends of the flexible coil, the bonding components including: a first bonding component disposed at a first end and a second bonding component disposed at a second end, the first end and the second end being opposite ends of the flexible coil; controlling the tension of a first guide groove on the first bonding component and the tension of a second guide groove on the second bonding component according to the pressure of the flexible coil on the object to be tested, wherein the first guide groove is disposed on a first long side of a support component, the second guide groove is disposed on a second long side of the support component, the first long side and the second long side being opposite ends of the support component, the support component being used to support the object to be tested, the first guide groove cooperating with the first bonding component under tension, and the second guide groove cooperating with the second bonding component under tension.
[0017] According to another aspect of the present invention, a coil bonding method is also provided, comprising: detecting the pressure of a flexible coil on an object to be tested, wherein the flexible coil is used to cover the surface of the object to be tested for magnetic resonance testing of the object to be tested, and bonding components are provided at both ends of the flexible coil, the bonding components comprising: a first bonding component disposed at a first end and a second bonding component disposed at a second end, the first end and the second end being opposite ends of the flexible coil; controlling the tension of a first guide groove on the first bonding component and the tension of a second guide groove on the second bonding component according to the pressure of the flexible coil on the object to be tested, wherein the object to be tested is supported by a bearing component, and the bearing component is provided with guide grooves on its two long sides, the guide grooves comprising: a first guide groove disposed on a first long side and a second guide groove disposed on a second long side, the first guide groove engaging with the first bonding component under tension, and the second guide groove engaging with the second bonding component under tension.
[0018] In this embodiment of the invention, the binding component includes a first binding component disposed at a first end of the flexible coil and a second binding component disposed at a second end of the flexible coil, wherein the first end and the second end are opposite ends of the flexible coil, and the flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection; the guiding component includes a first guiding groove disposed at a first long side of the supporting component and a second guiding groove disposed at a second long side of the supporting component, wherein the first long side and the second long side are opposite ends of the supporting component, the supporting component is used to support the object to be tested, the first guiding groove and the first binding component cooperate under tension, and the second guiding groove and the second binding component cooperate under tension; a pressure sensor is disposed at the contact surface between the flexible coil and the object to be tested, and is used to detect the pressure of the flexible coil on the object to be tested; a controller is used to control the tension of the first guiding groove on the first binding component and the tension of the second guiding groove on the second binding component according to the pressure of the flexible coil on the object to be tested, thereby achieving the technical effect of automatically binding the flexible coil according to the pressure of the flexible coil on the object to be tested, and thus solving the technical problem of not being able to automatically bind the flexible coil in the magnetic resonance system. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of a traditional coil binding method in existing technology;
[0021] Figure 2 This is a schematic diagram of a coil bonding device according to an embodiment of the present invention;
[0022] Figure 3 This is a schematic diagram of a device for adaptive bonding of flexible coils using a pneumatic device according to an embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram of a process for achieving adaptive bonding of a flexible coil using a pneumatic device according to an embodiment of the present invention.
[0024] Figure 5 A schematic diagram of an apparatus for adaptive bonding of a flexible coil using an electric coil, according to an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of a process for achieving adaptive bonding of a flexible coil using an electric coil according to an embodiment of the present invention;
[0026] Figure 7 This is a flowchart of a coil bonding method according to an embodiment of the present invention. Detailed Implementation
[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0029] Figure 2 This is a schematic diagram of a coil bonding device according to an embodiment of the present invention, such as... Figure 2As shown, the device includes: a bonding component 22, comprising a first bonding component 22a disposed at a first end of the flexible coil 30, and a second bonding component 22b disposed at a second end of the flexible coil 30, wherein the first end and the second end are opposite ends of the flexible coil 30, and the flexible coil 30 is used to cover the surface of the object to be tested for magnetic resonance detection; and a guiding component 24, comprising a first guiding groove 24a disposed on a first long side of the support component 32, and a second guiding groove 24b disposed on a second long side of the support component 32, wherein the first long side and the second long side are opposite ends of the support component 32. The bearing component 32 is used to carry the object to be tested. The first guide groove 24a and the first binding component 22a cooperate under tension, and the second guide groove 24b and the second binding component 22b cooperate under tension. The pressure sensor 26 is set on the contact surface between the flexible coil 30 and the object to be tested and is used to detect the pressure of the flexible coil 30 on the object to be tested. The controller 28 is used to control the tension of the first guide groove 24a on the first binding component 22a and the tension of the second guide groove 24b on the second binding component 22b according to the pressure of the flexible coil 30 on the object to be tested.
[0030] In this embodiment of the invention, the binding component includes a first binding component disposed at a first end of the flexible coil and a second binding component disposed at a second end of the flexible coil, wherein the first end and the second end are opposite ends of the flexible coil, and the flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection; the guiding component includes a first guiding groove disposed at a first long side of the supporting component and a second guiding groove disposed at a second long side of the supporting component, wherein the first long side and the second long side are opposite ends of the supporting component, the supporting component is used to support the object to be tested, the first guiding groove and the first binding component cooperate under tension, and the second guiding groove and the second binding component cooperate under tension; a pressure sensor is disposed at the contact surface between the flexible coil and the object to be tested, and is used to detect the pressure of the flexible coil on the object to be tested; a controller is used to control the tension of the first guiding groove on the first binding component and the tension of the second guiding groove on the second binding component according to the pressure of the flexible coil on the object to be tested, thereby achieving the technical effect of automatically binding the flexible coil according to the pressure of the flexible coil on the object to be tested, and thus solving the technical problem of not being able to automatically bind the flexible coil in the magnetic resonance system.
[0031] Optionally, the controller synchronously controls the pulling force of the first guide groove on the first binding component and the pulling force of the second guide groove on the second binding component, so that the pulling force of the first guide groove on the first binding component and the pulling force of the second guide groove on the second binding component are consistent.
[0032] As an optional embodiment, the flexible coil includes: a flexible carrier for fixing the magnetic resonance detection coil, a pressure sensor, a first binding component, and a second binding component, wherein the magnetic resonance detection coil is used to perform magnetic resonance detection on the object to be detected.
[0033] In the above embodiments of the present invention, the flexible coil fixes the magnetic resonance detection coil, pressure sensor, first binding component and second binding component through a flexible carrier. During the nuclear magnetic resonance detection of the object to be detected, the flexible coil covers the surface of the object to be detected, so that the flexible coil can be attached to the surface of the object to be detected through the flexible carrier.
[0034] As an optional embodiment, the guide component includes: a guide groove for guiding the binding component to engage under tension; and a cover plate connected to the guide groove via a hinge structure for locking the connection between the guide component and the binding component.
[0035] Optionally, the guide component accommodates the binding component through the guide slot, thereby controlling the pull of the guide slot on the binding component.
[0036] Optionally, the guide groove includes: a first guide groove and a second guide groove.
[0037] In the above embodiments of the present invention, the guide slot of the guide component is further provided with a cover plate. The cover plate and the guide slot are connected by a hinge structure. When the cover plate is closed, foreign objects can be prevented from falling into the guide slot. When the cover plate is open, the binding component of the flexible coil can be placed into the guide slot. When the binding component of the flexible coil has been placed into the guide slot, closing the guide slot cover plate can lock the connection between the guide slot and the binding component.
[0038] For example, after the binding component of the flexible coil is placed into the guide slot, the tension of the guide slot on the binding component can be adjusted to make the flexible coil fit the object to be tested more closely. After the tension of the guide slot on the binding component is adjusted, the cover plate of the guide slot can be closed to lock the connection between the binding component and the guide slot, thus keeping the flexible coil tight around the object to be tested.
[0039] Alternatively, the aforementioned support component may be a bed.
[0040] Optionally, the controller described above can be mounted on the carrier component.
[0041] Optionally, the controller can establish a wired communication connection with the flexible coil or a wireless communication connection with the flexible coil.
[0042] Alternatively, the controller can be a data processing terminal such as a computer.
[0043] In this embodiment of the invention, manual operation time and possible discomfort to patients can be completely eliminated. At the same time, the straps and their associated locking mechanisms, which are accessories to the coil, are simplified. The flexible coil, which is untethered and without accessories, can automatically bind the coil to the human body and automatically adapt to patients of different body sizes for binding, without the need for operators to perform complicated and time-consuming binding operations.
[0044] In this embodiment of the invention, an automatic binding device at the bed end (i.e., the support component) and the coil end (i.e., the flexible coil) is used to achieve unmanned automatic binding without additional straps or other accessories. The coil binding can be achieved automatically without operator intervention and is adaptable to coil binding for patients of different body types.
[0045] In this embodiment of the invention, the coil binding device not only simplifies the structure and accessories of the flexible coil and shortens the cumbersome binding operation process, effectively improving the scanning efficiency, but also greatly reduces the contact between the operator and the patient, improving the patient's comfort.
[0046] Optionally, the above-mentioned coil binding device can achieve automatic coil binding through pneumatic or electromagnetic means; that is, the pulling force of the guide component on the binding component in the above-mentioned coil binding device can be achieved through pneumatic or electromagnetic means.
[0047] As an optional embodiment, the binding component includes: an airbag for generating friction with the guide component after inflation; the coil binding device further includes: an air pressure pump, wherein the air pressure pump provides positive pressure to the airbag through a first ventilation channel, causing the airbag to inflate in the guide component and form an air seal; the air pressure pump provides negative pressure to the guide component through a second ventilation channel, causing the guide component to exert a pulling force on the binding component.
[0048] In the above embodiments of the present invention, the binding component is provided with an airbag, and the coil binding device is also provided with an air pressure pump. The air pressure pump provides positive pressure to the airbag through the first ventilation channel, causing the airbag to expand in the guide component. After the airbag is inflated, it can contact the guide component and generate friction, so that the airbag forms an air seal on the guide component. Then, a cavity will exist between the airbag and the guide component. The air pressure pump provides negative pressure to the guide component through the second ventilation channel, so that the gas in the cavity between the airbag and the guide component will be extracted. The airbag will be drawn into the guide component under the control of air pressure, so that the guide component forms a pulling force on the binding component.
[0049] As an optional embodiment, the controller is also used to control the air pressure pump to adjust the positive pressure of the first ventilation channel and the negative pressure of the second ventilation channel according to the pressure of the object to be detected by the flexible coil.
[0050] In the above embodiments of the present invention, by adjusting the positive pressure of the first air exchange channel and the negative pressure of the second air exchange channel according to the pressure of the flexible coil on the object to be tested, the tightness of the flexible coil on the object to be tested can be controlled, so that the flexible coil can fit against the surface of the object to be tested without causing the flexible coil to be over-tightened.
[0051] As an optional embodiment, the controller is further configured to, when the pressure of the flexible coil on the object to be tested is lower than a preset threshold, control the positive pressure of the first ventilation channel to be at a first pressure threshold and increase the negative pressure of the second ventilation channel, wherein, when the positive pressure of the first ventilation channel is at the first pressure threshold, the airbag expands and forms an air seal with the guide component, allowing the binding component to be pulled by the negative pressure of the second ventilation channel; the controller is further configured to, when the pressure of the flexible coil on the object to be tested is not lower than the preset threshold, control the positive pressure of the first ventilation channel to be at a second pressure threshold and stop changing the negative pressure of the second ventilation channel, wherein, the second pressure threshold is greater than the first pressure threshold, and when the positive pressure of the first ventilation channel is at the second pressure threshold, the frictional force between the airbag and the guide component reaches its maximum value after expansion.
[0052] In the above embodiments of the present invention, when adjusting the tightness of the flexible coil relative to the object to be tested, the positive pressure of the first ventilation channel can be made to be at a first pressure threshold. Furthermore, when the positive pressure of the first ventilation channel is at the first pressure threshold, the airbag expands and forms an air seal with the guide component, and the frictional force of the airbag on the guide component is minimal. In this case, increasing the negative pressure of the second ventilation channel can increase the pulling force of the guide component on the binding component, causing the airbag to tighten the flexible coil under the negative pressure of the second ventilation channel, thereby increasing the pressure of the flexible coil on the object to be tested.
[0053] In the above embodiments of the present invention, after the tightness relationship of the flexible coil to be tested is adjusted, the positive pressure of the first ventilation channel can be made to be at the second pressure threshold. Then, when the positive pressure of the first ventilation channel is at the second pressure threshold, the friction between the airbag and the guide component after the airbag expands reaches the maximum value. In this case, since the friction between the airbag and the guide component after the airbag expands reaches the maximum value, the binding component and the guide component are difficult to be displaced under the action of friction, thereby maintaining the fixed relationship between the binding component and the guide component.
[0054] Figure 3 This is a schematic diagram of a device for adaptive bonding of flexible coils using a pneumatic device according to an embodiment of the present invention, as shown below. Figure 3 As shown, it includes: a pressure sensor 26 located on the inner surface of the flexible coil 30, a binding assembly 22 with airbags at both ends of the flexible coil, a guide groove with air suction on the patient bed and a hinge structure (i.e., guide assembly 24) on the surface of the guide groove, an air pressure pump 36 that provides positive pressure to the flexible coil (i.e., the first ventilation channel) and negative pressure to the guide assembly (i.e., the second ventilation channel), and a HOST host 28 (i.e., controller) that controls the entire process.
[0055] Figure 4 This is a schematic diagram of a process for adaptive bonding of flexible coils using a pneumatic device according to an embodiment of the present invention, as shown below. Figure 4As shown, coil placement only requires the operator to place the flexible coil above the patient's scanning area and align the binding components at both ends of the flexible coil with the guide groove at the end of the patient bed. All subsequent actions are completed by the programmed operation of the HOST (controller). After coil placement, the computer program instructs the air pressure pump to start working. The hinges inside the bed-end guide component open, allowing the binding components of the flexible coil to sink into the guide groove. The negative pressure provided by the air pressure pump creates air suction inside the guide groove, thus pulling the binding components of the flexible coil gradually into the guide groove. Simultaneously, the air pressure pump provides positive pressure to the flexible coil's airbag, causing it to inflate and expand, creating friction with the guide groove. During this process, the flexible coil is gradually... The inner surface of the flexible coil is tightened to better conform to the human body. At this time, the pressure sensor on the inner surface of the flexible coil starts to work, reading the pressure data between the inner surface and the human body. The main control computer (i.e., the controller) converts this data into the comfort level of the tightened coil. The host (i.e., the controller) automatically adjusts the positive and negative pressure of the air pressure pump based on the calculated comfort data. In this way, the airbag of the flexible coil automatically adjusts its inflation volume, while the suction force inside the guide groove at the end of the bed is adjusted. The computer program determines the reasonable range of patient comfort through preset values. After the adjustment is completed, the hinge structure of the guide groove locks with the coil airbag. At this time, the flexible coil is completely bound and will no longer move. The adaptive binding process of the entire coil is completed, and the scanning is ready to begin.
[0056] Optionally, during the release process, the host (i.e., the controller) controls the air pressure pump to start working through computer program instructions. The air pressure pump provides negative pressure to the air bladder of the flexible coil (or no longer provides positive pressure), causing it to inhale and contract, reducing the friction with the guide groove. At the same time, the positive pressure provided by the air pressure pump (or no longer provides negative pressure) prevents air suction from being generated inside the guide groove, thereby pulling the binding assembly of the flexible coil gradually out of the guide groove. Then, the hinge in the bed end guide assembly opens, allowing the flexible coil to be removed from the binding assembly.
[0057] As an optional embodiment, the binding component includes a first electromagnetic device; the guiding component includes a second electromagnetic device; wherein the first electromagnetic device and the second electromagnetic device are subjected to magnetic force, causing the guiding component to exert a pulling force on the binding component.
[0058] In the above embodiments of the present invention, a first electromagnetic device is provided in the binding component and a second electromagnetic device is provided in the guiding component, so that the first electromagnetic device and the second electromagnetic device can form a pulling force under the action of magnetic force.
[0059] Optionally, the first electromagnetic device and the second electromagnetic device can be electromagnetic coils.
[0060] As an optional embodiment, the controller is also used to control the magnetic force between the first electromagnetic device and the second electromagnetic device based on the pressure of the object to be detected by the flexible coil.
[0061] According to the above embodiments of the present invention, the magnetic force between the first electromagnetic device and the second electromagnetic device is controlled by the pressure of the flexible coil on the object to be tested, so that the flexible coil can adhere to the surface of the object to be tested without causing the flexible coil to be over-tightened.
[0062] As an optional embodiment, the controller is further configured to increase the current of the first electromagnetic device and the second electromagnetic device and increase the magnetic force between the first electromagnetic device and the second electromagnetic device when the pressure of the flexible coil on the object to be detected is lower than a preset threshold; the controller is further configured to lock the current of the first electromagnetic device and the second electromagnetic device when the pressure of the flexible coil on the object to be detected is not lower than the preset threshold.
[0063] In the above embodiments of the present invention, the current of the first electromagnetic device and the second electromagnetic device are controlled according to the pressure of the flexible coil on the object to be tested. When the pressure of the flexible coil on the object to be tested is lower than a preset threshold, the magnetic force between the first electromagnetic device and the second electromagnetic device can be increased by increasing the current of the first electromagnetic device and the second electromagnetic device, thereby tightening the flexible coil and increasing the pressure of the flexible coil on the object to be tested. When the pressure of the flexible coil on the object to be tested is not lower than the preset threshold, the current of the first electromagnetic device and the second electromagnetic device is locked, the magnetic force between the first electromagnetic device and the second electromagnetic device is not changed, and the fixed relationship between the binding component and the guiding component is maintained.
[0064] As an optional embodiment, the coil bonding device further includes: a power supply, used to provide a negative phase current to the first electromagnetic device under the control of the controller, so that the first electromagnetic device generates a negative electromagnetic force; and to provide a positive phase current to the second electromagnetic device, so that the second electromagnetic device generates a positive electromagnetic force.
[0065] In the above embodiments of the present invention, the first electromagnetic device can generate a negative electromagnetic force under the action of a negative phase current, and the second electromagnetic device can generate a positive electromagnetic force under the action of a positive phase current. Thus, the first electromagnetic device and the second electromagnetic device can generate a pulling force under the action of the positive and negative electromagnetic forces, thereby tightening the flexible coil.
[0066] Optionally, the power supply can also be used to power the air pressure pump and the controller.
[0067] Figure 5 A schematic diagram of an apparatus for adaptive bonding of a flexible coil using an electric coil according to an embodiment of the present invention is shown below. Figure 5As shown, it includes: a pressure sensor 26 located on the inner surface of the flexible coil 30, a binding assembly 22 with negative coil groups at both ends of the flexible coil, a guide groove (i.e., guide assembly 24) with positive coil groups on the patient bed, a power supply 40 that provides negative current to the flexible coil (i.e., the first electromagnetic device 22a) and positive current to the guide assembly (i.e., the second electromagnetic device 22b), and a HOST host 28 (i.e., controller) that controls the entire process.
[0068] Figure 6 This is a schematic diagram of a process for achieving adaptive bonding of a flexible coil using an electric coil according to an embodiment of the present invention, as shown below. Figure 6 As shown, coil placement only requires the operator to place the flexible coil above the patient's scanning area and align the binding components at both ends of the flexible coil with the guide slot at the end of the patient bed. All subsequent actions are completed by the programmed operation of the HOST (controller). After coil placement, the computer program instructs the positive and negative coil power supplies to start operating. The positive phase current supplied by the power supply generates a positive electromagnetic force in the positive coil group (i.e., the second electromagnetic device) at the end of the bed, while the negative phase current supplies a negative electromagnetic force in the negative coil group (i.e., the first electromagnetic device) of the flexible coil. The positive and negative electromagnetic forces attract each other, thus drawing the binding components of the flexible coil gradually into the guide slot. Simultaneously, as the positive and negative electromagnetic forces interact, the binding components of the flexible coil penetrate deeper into the guide slot at the end of the bed. During this process, the flexible coil is gradually... The inner surface of the coil is tightened to better conform to the human body. At this time, the pressure sensor on the inner surface of the coil starts to work, reading the pressure data between the inner surface and the human body. The main control computer (i.e., the controller) converts this data into the level of comfort for the human body. The host (i.e., the controller) automatically adjusts the magnitude of the positive and negative phase current of the power supply based on the calculated human comfort data. In this way, the negative coil group (i.e., the first electromagnetic device) of the flexible coil automatically adjusts its negative electromagnetic force, while the positive coil group (i.e., the second electromagnetic device) inside the guide slot at the end of the bed adjusts its positive electromagnetic force. The computer program determines the reasonable range of comfort for the patient through preset values. After the adjustment is completed, the power supply current is locked, and the flexible coil is fully bound and will not move. The adaptive binding process of the entire coil is thus completed, and the scanning is ready to begin.
[0069] Optionally, during the release process, the HOST (i.e., controller) controls the positive and negative coil power supplies to start working through computer program instructions. The power supply does not provide current so that the positive coil group (i.e., the second electromagnetic device) at the bed end does not generate negative electromagnetic force, and the power supply does not provide current so that the negative coil group (i.e., the first electromagnetic device) of the flexible coil does not generate positive and negative electromagnetic force. As a result, the first and second electromagnetic devices are not subjected to electromagnetic force, allowing the flexible coil to be removed from the guide slot of the binding assembly.
[0070] According to an embodiment of the present invention, a coil bonding method embodiment is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.
[0071] Figure 7 This is a flowchart of a coil bonding method according to an embodiment of the present invention, such as... Figure 7 As shown, the method includes the following steps:
[0072] Step S702: Detect the pressure of the flexible coil on the object to be tested. The flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection. The two ends of the flexible coil are provided with binding components. The binding components include: a first binding component disposed at the first end and a second binding component disposed at the second end. The first end and the second end are opposite ends of the flexible coil.
[0073] Step S704: Control the tension of the first guide groove on the first binding component and the tension of the second guide groove on the second binding component according to the pressure of the object to be tested by the flexible coil. The first guide groove is located on the first long side of the bearing component, and the second guide groove is located on the second long side of the bearing component. The first long side and the second long side are opposite ends of the bearing component. The bearing component is used to carry the object to be tested. The first guide groove and the first binding component cooperate under the action of tension, and the second guide groove and the second binding component cooperate under the action of tension.
[0074] In this embodiment of the invention, the pressure of a flexible coil on the object to be tested is detected. The flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection. Binding components are provided at both ends of the flexible coil. The binding components include a first binding component at a first end and a second binding component at a second end, with the first and second ends being opposite ends of the flexible coil. The tension of a first guide groove on the first binding component and the tension of a second guide groove on the second binding component are controlled according to the pressure of the flexible coil on the object to be tested. The first guide groove is located on the first long side of the supporting component, and the second guide groove is located on the second long side of the supporting component, with the first and second long sides being opposite ends of the supporting component. The supporting component is used to support the object to be tested. The first guide groove and the first binding component cooperate under tension, and the second guide groove and the second binding component cooperate under tension, thereby achieving the technical effect of automatically binding the flexible coil according to the pressure of the flexible coil on the object to be tested, thus solving the technical problem of not being able to automatically bind flexible coils in a magnetic resonance system.
[0075] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0076] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0077] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.
[0078] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0079] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0080] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.
[0081] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A coil bonding device, characterized in that, include: The binding component includes a first binding component disposed at a first end of the flexible coil and a second binding component disposed at a second end of the flexible coil, wherein the first end and the second end are opposite ends of the flexible coil, and the flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection; The guiding component includes a first guiding groove disposed on a first long side of the bearing component and a second guiding groove disposed on a second long side of the bearing component, wherein the first long side and the second long side are opposite ends of the bearing component, the bearing component is used to carry the object to be tested, the first guiding groove cooperates with the first binding component under tension, and the second guiding groove cooperates with the second binding component under tension. A pressure sensor is disposed on the contact surface between the flexible coil and the object to be tested, for detecting the pressure exerted by the flexible coil on the object to be tested; A controller is configured to control the tension of the first guide groove on the first bonding component and the tension of the second guide groove on the second bonding component based on the pressure exerted by the flexible coil on the object to be tested. The binding component includes an airbag, which is used to generate friction with the guide component after inflation; The coil binding device further includes an air pressure pump, wherein the air pressure pump provides positive pressure to the airbag through a first ventilation channel, causing the airbag to expand in the guide assembly to form an air seal; the air pressure pump provides negative pressure to the guide assembly through a second ventilation channel, causing the guide assembly to exert a pulling force on the binding assembly.
2. The coil bonding device according to claim 1, characterized in that, The controller is also configured to control the air pressure pump to adjust the positive pressure of the first ventilation channel and the negative pressure of the second ventilation channel based on the pressure exerted by the flexible coil on the object to be detected.
3. The coil bonding device according to claim 2, characterized in that, The controller is further configured to control the positive pressure of the first ventilation channel to be at a first pressure threshold and increase the negative pressure of the second ventilation channel when the pressure of the flexible coil on the object to be detected is lower than a preset threshold. When the positive pressure of the first ventilation channel is at the first pressure threshold, the airbag expands and forms an air seal with the guide component, so that the binding component can be pulled by the negative pressure of the second ventilation channel. The controller is further configured to, when the pressure of the flexible coil on the object to be detected is not lower than the preset threshold, control the positive pressure of the first ventilation channel to be at a second pressure threshold and stop changing the negative pressure of the second ventilation channel, wherein the second pressure threshold is greater than the first pressure threshold, and when the positive pressure of the first ventilation channel is at the second pressure threshold, the friction between the airbag and the guide component reaches its maximum value after the airbag expands.
4. The coil bonding device according to any one of claims 1-3, characterized in that, The boot component includes: The guide groove is used to guide the binding components to engage under tensile force. The cover plate is connected to the guide groove via a hinge structure and is used to lock the connection between the guide component and the binding component.
5. A coil bonding method, characterized in that, include: The pressure of a flexible coil on an object to be tested is detected. The flexible coil is used to cover the surface of the object to be tested for magnetic resonance detection. The two ends of the flexible coil are provided with binding components. The binding components include: a first binding component disposed at a first end and a second binding component disposed at a second end. The first end and the second end are opposite ends of the flexible coil. The tension of the first guide groove on the first binding component and the tension of the second guide groove on the second binding component are controlled according to the pressure of the flexible coil on the object to be tested. The first guide groove is disposed on the first long side of the bearing component, and the second guide groove is disposed on the second long side of the bearing component. The first long side and the second long side are opposite ends of the bearing component. The bearing component is used to carry the object to be tested. The first guide groove and the first binding component cooperate under the action of tension, and the second guide groove and the second binding component cooperate under the action of tension. The binding component includes an airbag for generating friction with the guide component after inflation. The airbag is supplied with positive pressure by an air pressure pump through a first ventilation channel, causing the airbag to inflate in the guide component and form an air seal. The guide component is supplied with negative pressure by the air pressure pump through a second ventilation channel, causing the guide component to exert a pulling force on the binding component. The guide component includes a first guide groove and a second guide groove.
Citation Information
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