CN115721325A - Slip ring assembly and medical system - Google Patents

Abstract

The present specification embodiments provide a slip ring assembly and a medical system, the slip ring assembly comprising a first slip ring, a second slip ring and a first data transmission assembly in signal connection with at least one of the first slip ring and the second slip ring.

Description

Slip ring assembly and medical system

Technical Field

The application relates to the field of medical instruments, in particular to a slip ring assembly and a medical system.

Background

The medical system may include imaging equipment for diagnosis of disease, treatment equipment for radiation therapy, a gantry, a slip ring, and the like. Slip rings are data transmission and power supply devices mounted on the frame of a medical system. The slip ring is used to provide power, transmit control signals, and transmit operational data to devices (e.g., imaging devices and/or treatment devices, etc.) on the gantry of the medical system during rotation of the gantry. When the medical system is used in combination with a plurality of devices (such as an imaging device and a treatment device), the arrangement of the slip ring may cause the medical system to have a problem that the cable arrangement is complicated or the transmitted data is easy to be lost.

Disclosure of Invention

Embodiments of the present description provide a slip ring assembly comprising a first slip ring, a second slip ring, and a first data transmission assembly in signal connection with at least one of the first slip ring and the second slip ring.

In some embodiments, the first slip ring and the second slip ring are each in signal connection with the first data transmission assembly.

In some embodiments, the slip ring assembly further comprises a second data transmission assembly, the first data transmission assembly being in signal connection with the first slip ring, and the second data transmission assembly being in signal connection with the second slip ring.

One of the first slip ring and the first data transmission assembly is disposed around the other; and/or one of the second slip ring and the first data transmission assembly is disposed around the other.

In some embodiments, the first slip ring is disposed coplanar with the second slip ring.

In some embodiments, the first data transmission assembly is disposed between the first slip ring and the second slip ring.

According to the slip ring subassembly of this application, its simple structure can provide power and transmission data high-efficiently steadily. The design of the double slip ring matched data transmission assembly not only avoids the complex form of the traditional winding frame and cable, but also reduces the axial thickness of the medical system using the slip ring assembly to a great extent. Meanwhile, the number of signal transmission channels is increased due to the design of the double slip rings, so that the data volume capable of being transmitted is larger, and the transmitted data is not easy to lose.

The embodiment of the present specification further provides a medical system, which includes a first frame, a second frame, a fixed frame, and the slip ring assembly according to any one of the above technical solutions; the first machine frame is used for mounting at least part of a first imaging assembly or at least part of a first radiotherapy assembly, the second machine frame is used for mounting at least part of a second imaging assembly and at least part of a second treatment assembly, wherein a first slip ring of the slip ring assembly is arranged on the first machine frame and is in signal connection with the first imaging assembly or the first radiotherapy assembly; and a second slip ring of the slip ring assembly is arranged on the second rack, and the second slip ring is in signal connection with the second imaging assembly or the second treatment assembly.

In some embodiments, the first data transmission assembly is disposed on the stationary gantry; the second rack is provided with an accommodating space, at least part of the first rack is positioned in the accommodating space, and the first rack is rotatably connected to the second rack; and the second frame is rotatably connected to the fixed frame.

In some embodiments, the first frame has a first axis about which the first frame rotates and the second frame has a second axis about which the second frame rotates, wherein the first axis intersects or is parallel to the second axis.

In some embodiments, the medical system further comprises a locking mechanism disposed between the first and second racks, or disposed on the first rack and/or on the second rack.

According to the medical system, the first frame (used for mounting the first imaging component or the first treatment component) of the medical system is rotatably connected to the second frame (used for mounting the second imaging component or the second treatment component), the second frame is rotatably connected to the fixed frame, and the combined arrangement of the two imaging components, the combined arrangement of the two treatment components or the combined arrangement of the imaging component and the treatment component is realized through the arrangement of the frames. The design of two sliding rings has not only avoided adopting the complicated form of traditional bobbin and cable, has still reduced whole medical system's axial thickness at to a great extent, has increased the quantity of signal transmission passageway simultaneously for the data volume that can transmit is bigger, and the difficult disappearance of data that just transmits. In addition, the medical system can perform image shooting (or radiation therapy) on the part to be treated by rotating the first rack relative to the second rack, and can also perform radiation therapy (or image shooting) by rotating the second rack relative to the fixed rack.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

FIG. 1 is a schematic structural view of a slip ring assembly according to some embodiments of the present application;

FIG. 2 is a perspective view of a medical system according to some embodiments of the present application;

FIG. 3 is a cross-sectional view of a medical system according to some embodiments of the present application;

FIG. 4 is a schematic structural diagram of a medical system according to some embodiments of the present application;

FIG. 5 is a cross-sectional view of a medical system according to other embodiments of the present application.

In the drawing, 100 is a medical system, 110 is a first frame, 120 is a second frame, 130 is a fixed frame, 131 is a fixed mechanism, 140 is a first slip ring, 150 is a second slip ring, 161 is a first data transmission assembly, 162 is a second data transmission assembly, 164 is a carbon brush assembly, 170 is a first bearing, 180 is a second bearing, and 190 is a locking mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.

Embodiments of the present application relate to a slip ring assembly and medical system, the slip ring assembly employing a dual slip ring design and configuring a first data transmission assembly in signal connection with a first slip ring and/or a second slip ring. The first data transmission assembly may cooperate with the first slip ring and/or the second slip ring to provide power, transmit control signals, transmit operational data, etc. to equipment on a gantry of a medical system using the slip ring assembly. The slip ring assembly of the application has a simple structure, and can efficiently and stably provide power and transmit data. The design of the double slip ring matched data transmission assembly not only avoids the complex form of the traditional winding frame and cable, but also reduces the axial thickness of the medical system using the slip ring assembly to a great extent. Meanwhile, the number of signal transmission channels is increased due to the design of the double slip rings, so that the data volume capable of being transmitted is larger, and the transmitted data is not easy to lose. The slip ring assembly may be used in a medical system that may include at least two imaging devices in combination, may include at least two treatment devices in combination, and may include both an imaging device and a treatment device in combination.

Figure 1 is a schematic structural view of a slip ring assembly according to some embodiments of the present application. As shown in fig. 1, the slip ring assembly includes a first slip ring 140, a second slip ring 150, and a first data transmission assembly 161. The first data transmission assembly 161 is in signal communication with the first slip ring 140 and/or the second slip ring 150. The first and second slip rings 140, 150 are electrically conductive slip rings. Conductive slip rings are devices used in electrical equipment to achieve the transmission of current and signals between two components that rotate relative to each other. Data interaction between the first slip ring 140 and/or the second slip ring 150 and the first data transmission assembly 161 may be achieved. The first slip ring 140 may be used to signal a device on the housing of the medical system to supply power and transmit data to the device; the second slip ring 150 may be used for signal connection with another device on the gantry of the medical system to supply power and data to the device. Under the combined action of the first slip ring 140 and/or the second slip ring 150 and the first data transmission assembly 161, the power supply and data transmission can be performed for the equipment on the frame of the medical system using the slip ring assembly, so as to realize the operation of imaging or treating the treatment part.

In some embodiments, the first data transmission assembly 161 may be in signal connection with only the first slip ring 140. In some embodiments, the first data transmission assembly 161 may be in signal connection with only the second slip ring 150. In some embodiments, the first slip ring 140 and the second slip ring 150 may both be in signal communication with a first data transmission assembly 161, as described below with reference to fig. 3 and its associated description. In some embodiments, the slip ring assembly may further include a second data transmission assembly 162, the first data transmission assembly 161 being in signal connection with the first slip ring 140, and the second data transmission assembly 162 being in signal connection with the second slip ring 150, as described in fig. 5 and related description below.

In some embodiments, first data transfer assembly 161 includes a first stationary ring. In some embodiments, the first data transmission assembly 161 may further include at least one first signal generating mechanism and at least one first signal receiving mechanism, which may both be disposed on the first stationary ring. In some embodiments, the second data transmission component 162 includes a second stationary ring. In some embodiments, the second data transmitting assembly 162 may further include at least one second signal generating mechanism and at least one second signal receiving mechanism, and the second signal generating mechanism and the second signal receiving mechanism may both be disposed on the second stationary ring. In some embodiments, the first slip ring 140, the second slip ring 150, and at least two of the first stationary rings are circumferentially disposed. For example, the first slip ring 140 may be disposed around the first stationary ring; for another example, a stationary ring may be disposed around the first slip ring 140; for another example, the second slip ring 150 may be disposed around the first stationary ring; for another example, a first stationary ring may be disposed around the second slip ring 150; for another example, the first slip ring 140 may be disposed around the second slip ring 150; for another example, the second slip ring 150 may be disposed around the first slip ring 140.

In some embodiments, when at least two of the first slip ring 140, the second slip ring 150, and the first stationary ring are circumferentially disposed, at least two of the first slip ring 140, the second slip ring 150, and the first stationary ring may be spaced apart along an axial direction of the first slip ring 140 (or the second slip ring 150). For example, the first and second slip rings 140, 150 may be spaced apart along the axial direction of the first slip ring 140 (or the second slip ring 150); for another example, the first slip ring 140 and the first stationary ring may be arranged at intervals along the axial direction of the first slip ring 140; for another example, the second slip ring 150 and the first stationary ring may be spaced apart along the axial direction of the second slip ring 150.

In some embodiments, the first slip ring 140 and the second slip ring 150 may be disposed coplanar when at least two of the first slip ring 140, the second slip ring 150, and the first stationary ring are disposed circumferentially, as will be further described below. In some embodiments, a first data transmission assembly 161 may be disposed between the first slip ring 140 and the second slip ring 150. Regarding the detailed description of the arrangement of the slip ring assembly, the present specification will further describe the arrangement of the slip ring assembly in the medical system as an example, please refer to the related contents below. In some embodiments, the first slip ring 140 is rotatable relative to the second slip ring 150 such that the first slip ring 140 and the second slip ring 150 each provide power and/or data transfer for relatively moving (e.g., rotating) devices in the medical system. For example, the first slip ring 140 and the second slip ring 150 may be respectively disposed on two frames (e.g., the first frame 110 and the second frame 120) capable of rotating relatively, as described in the following description.

Medical systems may be used to deliver radiation therapy to patients suffering from malignancies. In some embodiments, the medical system may include a treatment assembly, a gantry, a data transmission system (e.g., slip ring assembly, carbon brushes, data transmission assembly, etc.), a control assembly, and the like. The control assembly can control the radiotherapy operation of the treatment assembly and the movement of the gantry. The treatment component of the medical system may be used in conjunction with an external imaging component or may be used in conjunction with multiple (e.g., two) treatment components. For example, the imaging assembly takes an image of the region to be treated before and/or during the radiation treatment of the treatment assembly. The imaging assembly and the treatment assembly are structurally independent of each other, e.g., the imaging assembly and the treatment assembly can be arranged side-by-side in tandem, and a patient can lie on a patient bed built-in the treatment assembly before and/or during radiation treatment, and the patient bed can be moved back and forth to move the patient between the imaging region of the imaging assembly and the radiation treatment region of the treatment assembly.

The embodiment of the application relates to a medical system, wherein a first frame (used for installing a first imaging component or a first treatment component) of the medical system is rotatably connected to a second frame (used for installing a second imaging component or a second treatment component), the second frame is rotatably connected to a fixed frame, and the combined arrangement of two imaging components, the combined arrangement of two treatment components or the combined arrangement of the imaging component and the treatment component is realized through the arrangement of the frames. The medical system can provide power for the first imaging component or the first treatment component on the first machine frame through the first slip ring, and data transmission between the control equipment of the medical system and the first imaging component or the first treatment component is realized. The medical system can provide power for the second imaging assembly or the second treatment assembly on the second rack through the second slip ring, and data transmission between the control equipment of the medical system and the second imaging assembly or the second treatment assembly is realized. The design of two sliding rings has not only avoided adopting the complicated form of traditional bobbin and cable, has still reduced whole medical system's axial thickness at to a great extent, has increased the quantity of signal transmission passageway simultaneously for the data volume that can transmit is bigger, and the difficult disappearance of data that just transmits. In addition, the medical system can perform image shooting (or radiation therapy) of the part to be treated by rotating the first gantry relative to the second gantry, and can also perform radiation therapy (or image shooting) by rotating the second gantry relative to the fixed gantry.

Fig. 2 is a perspective view of a medical system according to some embodiments of the present application, fig. 3 is a cross-sectional view of a medical system according to some embodiments of the present application, fig. 4 is a structural view of a medical system according to some embodiments of the present application, and fig. 5 is a cross-sectional view of a medical system according to other embodiments of the present application. The medical system according to the embodiment of the present application will be described in detail below with reference to fig. 2 to 5. It should be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application.

As shown in fig. 2 and 3, the medical system 100 may include a first gantry 110, a second gantry 120, a stationary gantry 130, a first slip ring 140, and a second slip ring 150. The first gantry 110 can be used to mount at least a portion of a first imaging assembly or at least a first treatment assembly, and the second gantry 120 can be used to mount at least a portion of a second imaging assembly or at least a portion of a second treatment assembly. That is, at least a portion of the first image component and at least a portion of the second image component may be mounted on the first rack 110 and the second rack 120, respectively, so as to implement the joint use of the two image components; alternatively, at least a portion of the first treatment assembly and at least a portion of the second treatment assembly may be mounted on the first gantry 110 and the second gantry 120, respectively, to enable a combined use of the two treatment assemblies; alternatively, at least a portion of the first imaging assembly may be mounted on the first gantry 110, and at least a portion of the second treatment assembly may be mounted on the second gantry 120, so as to achieve the combined use of the imaging assembly and the treatment assembly; alternatively, at least a portion of the first treatment assembly may be mounted on the first gantry 110 and at least a portion of the second imaging assembly may be mounted on the second gantry 120 to provide for the combined use of the imaging assembly and the treatment assembly. The first slip ring 140 is provided on the first housing 110 such that the first slip ring 140 can rotate with the first housing 110. The first slip ring 140 is connected to the first imaging component or the first therapeutic component, and the first imaging component is mounted on the first frame 110, and the first slip ring 140 is connected to the first imaging component. The second slip ring 150 may be provided on the second frame 120 such that the second slip ring 150 may rotate with the second frame 120. The second slip ring 150 can be connected to a second imaging component or a second treatment component, and the description is given by taking the example that the second treatment component is mounted on the second frame 120 and the second slip ring 150 is connected to the second treatment component. Signal connections may be understood to enable data interaction between the first slipring 140 and the first imaging component and between the second slipring 150 and the second treatment component. The first slip ring 140 and the second slip ring may be disposed in a coplanar manner or in a non-coplanar manner (for example, they may be disposed in tandem in the axial direction of the first housing 110 or the second housing 120), as described in the following description. The first data transfer assembly 161 is disposed on the stationary gantry 130. The second housing 120 has an accommodating space in which at least a portion of the first housing 110 is located. In some embodiments, the imaging region and the radiation treatment region at least partially overlap such that the imaging operation and the radiation treatment operation can be performed simultaneously. For example only, the second frame 120 may include a ring structure, and an inner ring surface of the ring structure may surround the receiving space. The first housing 110 is at least partially located within the second housing 120. For example, the first housing 110 may be partially located in the accommodating space, or the first housing 110 may be entirely located in the accommodating space. The first frame 110 is rotatably coupled to the second frame 120, and the second frame 120 is rotatably coupled to the fixed frame 130.

Before the radiation therapy, the second gantry 120 may be fixed relative to the fixed gantry 130, and the first gantry 110 may rotate relative to the second gantry 120, so that the first imaging assembly disposed on the first gantry 110 may perform the photographing imaging on the to-be-treated portion of the patient. The resulting images may enable the medical system 100 or its operator to access the specific location and lesion status of the site to be treated. During radiation treatment, the second gantry 120 can rotate relative to the fixed gantry 130 so that a second treatment assembly disposed on the second gantry 120 can deliver radiation treatment to a region of a patient to be treated. At this time, the first frame 110 may be fixed to the second frame 120 to move in synchronization with the second frame 120; the first gantry 110 is also rotatable with respect to the second gantry 120 to perform a simultaneous radiographic imaging while performing a radiation treatment, so that an operator can know a treatment condition of a portion of a patient to be treated in real time. The above-mentioned part to be treated may include a head, a chest, an abdomen, or four limbs, etc., and may also include a specific organ, for example, an esophagus, a trachea, a lung, a stomach, a liver, a kidney, a spleen, an intestinal tract or a uterus, etc.

The imaging assembly (including the first imaging assembly and the second imaging assembly) may be a device for non-invasively obtaining images of internal tissues of a human or animal. For example, the imaging assembly may utilize a radiation source to emit a beam of radiation (e.g., X-ray, gamma, or ultrasound) and a radiation detector to scan a region of a human or animal. The image component can obtain the image of the scanned part and can be used for diagnosing or treating various diseases. In some embodiments, the imaging assembly may include a CT device (e.g., CBCT device, FBCT device, etc.), an MR device, a PET-CT device, an X-ray machine, etc., or any combination thereof. In some embodiments, at least the radiation emitting source (e.g., a bulb) of the imaging assembly is disposed on the first gantry 110.

In some embodiments, the treatment assemblies (including the first treatment assembly and the second treatment assembly) can manually accelerate various different types of charged particles to higher energy electromagnetic devices with different forms of electric fields. The radiotherapy assembly may include a linac, which is a medical particle accelerator device used to deliver radiation therapy to a malignant tumor. The radiation emitting mechanism of the linear accelerator is capable of generating X-rays, electron beams, proton beams, and other particle beams to treat malignant tumors at the site to be treated. In some embodiments, at least the linear accelerator of the treatment assembly is disposed on the second gantry 120.

The first slip ring 140 may provide power to the first imaging component and/or may be used for data transmission between the first imaging component and other components of the medical system 100 (e.g., a control component), such as image data, control data, and the like. The second slip ring 150 may provide power to the second therapeutic assembly and/or may be used for data transfer between the second therapeutic assembly and other components of the medical system 100 (e.g., control assembly), such as image data, control data, and the like.

When a patient needs to receive radiation therapy, image shooting is usually performed first, and then radiation therapy is performed. Since the first gantry 110 is at least partially disposed in the second gantry 120, the first gantry 110 is rotatably connected to the second gantry 120, and the second gantry 120 is rotatably connected to the fixed gantry 130, the patient can be directly treated with radiation after the image capturing is completed without moving the patient table. Because the sickbed does not need to be moved, the image data can not have errors due to the movement of the sickbed, the deviation between the position for radiotherapy and the actual position to be treated is avoided, the radiotherapy effect is further ensured, meanwhile, the radiotherapy time can be shortened, and the pain of a patient is relieved. The structure of the embodiment can also conveniently shoot images at the same time of radiotherapy. In addition, during the image capturing process, the rotation speed of the first frame 110 is relatively fast (for example, the rotation speed is about 120 r/min); the second gantry 120 rotates at a slower rate (e.g., around 10 r/min) during radiation therapy. In this embodiment, the first frame 110 and the second frame 120 are disposed in such a manner that both the first frame 110 and the second frame 120 can be designed according to a desired rotation speed. For example, the first gantry 110 can rotate independently (rather than rotate synchronously with the second gantry 120) during imaging, so that the rotating part is light in weight when the first gantry 110 rotates, thereby ensuring high-speed rotation of the first gantry 110 without affecting image quality and preventing the second treatment assembly from affecting service life due to high-speed rotation. In addition, the first slip ring 140 and the second slip ring 150 are configured to perform data transmission of the first imaging component and the second therapeutic component, respectively, so that the working processes of the first imaging component and the second therapeutic component do not interfere with each other, and the data transmission amount is larger (relative to the configuration of a single slip ring).

In some embodiments, as shown in fig. 3, the first gantry 110 has a first axis (dashed line a in fig. 3) and the second gantry 120 has a second axis (dashed line B in fig. 3). For example only, the first gantry 110 and the second gantry may include annular structures, and the first axis may be an axis of the annular structure of the first gantry 110 and the second axis may be an axis of the annular structure of the second gantry 120. The first housing 110 rotates about a first axis and the second housing 120 rotates about a second axis. The first axis and the second axis may intersect (or substantially intersect) or be parallel (or substantially parallel). That is, the rotation axis of the first housing 110 intersects or is parallel to the rotation axis of the second housing 120. For example only, the first axis and the second axis may intersect at a point, and the intersection point may be an isocenter of the medical system (i.e., a point where the rotational axes of the gantry, the linac, and the couch of the medical system intersect). Alternatively, the first axis and the second axis may be parallel and spaced apart. Still alternatively, the first axis and the second axis may coincide. With this arrangement, the rotation of the first gantry 110 and the second gantry 120 can ensure better diagnosis and treatment effects while reducing patient movement in diagnosis or quality. It should be noted that substantially intersecting is understood to mean that the first and second axes are not more than 2mm from the isocenter; substantially parallel is understood to mean that the angle between the first axis and the second axis is less than 2 °.

In some embodiments, the first slip ring 140 is disposed coplanar with the second slip ring 150. A coplanar arrangement may be understood as the first and second slip rings 140, 150 being arranged along the same plane, which may be a plane perpendicular to the first axis (or the second axis). The axes of the first and second slip rings 140, 150 may be parallel or coincident at this time. The coplanar arrangement of the first slip ring 140 and the second slip ring 150 can make the layout of the medical system 100 more compact, and reduce the thickness of the medical system 100 in the axial direction (also the axial direction of the first gantry 110 in a ring structure or the axial direction of the second gantry 120 in a ring structure). In some embodiments, when the first and second slip rings 140 and 150 are both arranged on a plane perpendicular to the first axis (or the second axis), the second slip ring 150 may be disposed around the outside of the first slip ring 140, or the first slip ring 140 may be disposed around the outside of the second slip ring 150.

In some embodiments, the medical system 100 also includes a carbon brush assembly 164. The carbon brush assembly 164 is a sliding contact, and the carbon brush assembly 164 is used to provide power and/or transfer energy to the slip rings (including the first and second slip rings 140, 150) and the first data transmission assembly 161 (or the second data transmission assembly 162). In some embodiments, the carbon brush assembly 164 may include a first carbon brush that may be in contact with the first slip ring 140 and a second carbon brush that may be in contact with the second slip ring 150. In some embodiments, the first carbon brush and the second carbon brush may be an integral structure. The first carbon brush and the second carbon brush are manufactured into an integrated structure, so that the carbon brush assembly 164 can be conveniently installed, maintained and replaced, and meanwhile, the space can be saved.

In some embodiments, as shown in fig. 3, a first data transmission assembly 161 may be in signal communication with the first slipring 140 and the second slipring 150. A data transmission assembly (i.e., the first data transmission assembly 161) is in signal connection with the first slip ring 140 and the second slip ring 150, respectively, so that the structure of the medical system 100 can be more compact and the radial dimension of the medical system 100 can be reduced.

In some embodiments, all three of the first slip ring 140, the second slip ring 150, and the first data transmission assembly 161 may be disposed in a common plane. That is, the first slip ring 140, the second slip ring 150, and the first data transmission assembly 161 may be located on the same plane perpendicular to the first axis (or the second axis). In some embodiments, the first data transmission assembly 161 may be located on a side of the first slip ring 140 and/or the second slip ring 150 distal from the first housing 110. In some embodiments, the first data transmission assembly 161 may be located on a side of the first slip ring 140 and/or the second slip ring 150 proximate the first housing 110.

In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 may be less than the outer diameter of the second slip ring 150 and the inner diameter of the first stationary ring of the first data transmission assembly 161 may be greater than the outer diameter of the first slip ring 140. At this time, the first slip ring 140, the second slip ring 150 and the first stationary ring may be disposed in a coplanar manner, and the first stationary ring of the first data transmission assembly 161 may be located between the first slip ring 140 and the second slip ring 150, so as to facilitate signal connection between the first data transmission assembly 161 and the first slip ring 140 and the second slip ring 150, respectively. In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 may be less than the inner diameter of the first slip ring 140. At this time, the first slip ring 140, the second slip ring 150, and the first stationary ring may be disposed in a coplanar manner, and the first slip ring 140 may be wound around the outside of the first stationary ring. In some embodiments, the inner diameter of the first stationary ring of the first data transmission assembly 161 may be greater than the outer diameter of the second slip ring 150. At this time, the first slip ring 140, the second slip ring 150, and the first stationary ring may be disposed in a coplanar manner, and the first stationary ring may surround the second slip ring 150.

In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 may be less than or equal to 1.7m. In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 may be less than or equal to 1.6m. By such sizing, the first stationary ring of the first data transfer assembly 161 can be prevented from being oversized, thereby avoiding missing data being transferred (which could result in missing data being transferred if the first stationary ring is oversized).

In some embodiments, as shown in fig. 4, the first stationary ring of the first data transfer assembly 161 may be secured to the stationary frame 130 by a securing mechanism 131. The fixing mechanism 131 may include a first fixing portion, a connecting portion, and a second fixing portion. The first fixing portion may be connected to the first stationary ring of the first data transmission member 161. The second fixing portion may be connected to the fixing frame 130. The connecting part is used for connecting the first fixing part and the second fixing part. In some embodiments, the number of the fixing mechanisms 131 may be plural, for example, may be 2, 4, or 7, etc.

In some embodiments, as shown in FIG. 5, a first data transmission assembly 161 may be in signal communication with the first slip ring 140. The second data transmission assembly 162 is in signal communication with the second slip ring 150. In some embodiments, the first data transmission assembly 161 and the second data transmission assembly 162 are located on both axial sides of the first slip ring 140. In some embodiments, the first data transfer assembly 161 and the second data transfer assembly 162 may both be located on a side of the first slip ring 140 and/or the second slip ring 150 that is distal from the first housing 110. In some embodiments, the first data transfer assembly 161 and the second data transfer assembly 162 may both be located on a side of the first and/or second slip rings 140, 150 proximate the first housing 110.

In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 and/or the outer diameter of the second stationary ring of the second data transmission assembly 162 may be less than the outer diameter of the first slip ring 140. In some embodiments, the inner diameter of the first stationary ring of the first data transmission assembly 161 and/or the inner diameter of the second stationary ring of the second data transmission assembly 162 may be greater than the inner diameter of the second data slipring 150.

In some embodiments, the inner diameter of the first stationary ring of the first data transmission assembly 161 may be greater than the outer diameter of the first slip ring 140, and the outer diameter of the first stationary ring of the first data transmission assembly 161 may be less than the outer diameter of the second slip ring 150. In some embodiments, the inner diameter of the second stationary ring of the second data transmitting assembly 162 may be greater than the outer diameter of the first traveler 140, and the outer diameter of the second stationary ring of the second data transmitting assembly 162 may be less than the inner diameter of the second traveler 150. Through the design of the inner diameter and the outer diameter of the first stationary ring of the first data transmission assembly 161 and the second stationary ring of the second data transmission assembly 162 in this embodiment, the sizes of the first stationary ring of the first data transmission assembly 161 and the second stationary ring of the second data transmission assembly 162 are reasonable, so that the data transmission efficiency can be ensured, and the transmitted data loss can be avoided.

In some embodiments, the outer diameter of the first stationary ring of the first data transmission assembly 161 and the second stationary ring of the second data transmission assembly 162 may each be less than or equal to 1.7m. In some embodiments, the outer diameter of the first stationary ring of the first data transfer assembly 161 and the second stationary ring of the second data transfer assembly 162 may be less than or equal to 1.6m. By such sizing, the first stationary ring of the first data transfer element 161 and the second stationary ring of the second data transfer element 162 are prevented from being oversized, thereby avoiding missing data being transferred (which might result if the first stationary ring or the second stationary ring were oversized).

In some embodiments, the inner diameter of the first stationary ring of the first data transfer assembly 161 and the inner diameter of the second stationary ring of the second data transfer assembly 162 may be the same. In some embodiments, the outer diameter of the first stationary ring of the first data transfer assembly 161 and the outer diameter of the second stationary ring of the second data transfer assembly 162 may be the same.

In some embodiments, the medical system 100 may further include a first bearing 170 and a second bearing 180, the first housing 110 being coupled to the second housing 120 via the first bearing 170, and the second housing 120 being coupled to the stationary housing 130 via the second bearing 180. Specifically, a stator portion of the first bearing 170 may be fixed with the second frame 120, and a rotor portion of the first bearing 170 may be fixed with the first frame 110; the stator portion of the second bearing 180 may be fixed to the stationary frame 130 and the rotor portion of the second bearing 180 may be fixed to the second frame 120. In some embodiments, the first bearing 170 and the second bearing 180 may be electromagnetic bearings or mechanical bearings, or the like. The mechanical bearing may be a sliding bearing, a rolling bearing, or the like. By using the electromagnetic bearing, there is no mechanical contact between the first frame 110 and the second frame 120 or between the second frame 120 and the fixed frame 130, so that friction between the frames is avoided, lubrication is not required, and the electromagnetic bearing is suitable for high-speed rotation, and can improve the service life of each frame.

In some embodiments, the medical system 100 may further include a drive source (not shown) and a transmission assembly (not shown). A transmission assembly may also be connected between the drive source and the second bearing 180. The driving source may include a motor, an engine, and the like. The transmission assembly may be a pulley transmission assembly, a sprocket transmission assembly, a gear transmission assembly, or the like. The driving source can drive the rotor of the second bearing 180 to rotate through the pulley transmission assembly, so as to drive the second frame 120 and the second slip ring 150 to rotate relative to the fixed frame 130. In other embodiments, the rotor of second bearing 180 may be directly driven to rotate by a drive source (i.e., the gearing assembly is omitted). At this time, the driving source may be a direct-drive rotating motor directly connected to the second bearing 180. The driving source may be a servo motor, a stepping motor, or the like.

In some embodiments, the medical system 100 may further include another drive source (not shown) and another transmission assembly (not shown). Another transmission assembly may also be connected between another drive source and the first bearing 170. The other drive source may be a motor, an engine, or the like. The other drive assembly may be a pulley drive assembly, a sprocket drive assembly, a gear drive assembly, or the like. In other embodiments, the rotor of the first bearing 170 may be directly driven to rotate by another drive source (i.e., another transmission assembly is omitted). At this time, the driving source may be a direct-drive rotating motor directly connected to the first bearing 170.

In some embodiments, the medical system 100 may also include a locking mechanism 190. The locking mechanism 190 may be disposed between the first chassis 110 and the second chassis 120. In some embodiments, the locking mechanism 190 may be provided on the first chassis 110. In some embodiments, the locking mechanism 190 may be provided on the second chassis 120. In some embodiments, the locking structure 190 may be provided on the first chassis 110 and the second chassis 120. That is, a part of the locking mechanism 190 may be provided on the first chassis 110, and another part of the locking mechanism may be provided on the second chassis 120. The locking mechanism 190 may be configured to lock the first chassis 110 and the second chassis 120 to prevent relative rotation between the first chassis 110 and the second chassis 120. When the locking mechanism 190 locks the first frame 110 and the second frame 120, the first frame 110 and the second frame 120 can rotate synchronously. For example, the first frame 110 and the second frame 120 may rotate together with respect to the fixed frame 130. When the locking mechanism 190 does not lock the first chassis 110 and the second chassis 120, the first chassis 110 and the second chassis 120 may rotate relatively independently. For example, the first gantry 110 can rotate while the second gantry 120 remains stationary. For another example, the second frame 120 may also rotate relative to the fixed frame 130 while the first frame 110 remains stationary.

In some embodiments, after the locking mechanism 190 locks the first frame 110 and the second frame 120, the driving source may drive the second bearing 180 via the pulley assembly, so as to drive the second frame 120, the second slip ring 150, the first frame 110, and the first slip ring 140 to rotate together. At this time, the second housing 120, the second slip ring 150, the first housing 110, and the first slip ring 140 remain relatively stationary but rotate with respect to the stationary housing 130.

In some embodiments, the locking mechanism 190 may include an electromagnetic band-type brake device. In some embodiments, the electromagnetic band-type brake device may include an electromagnetic bearing (e.g., the first bearing 170 described above is provided as an electromagnetic bearing) and a driving apparatus (e.g., a motor or an engine, etc., not shown in the drawings). The driving apparatus may control mutual locking or unlocking between a rotor portion and a stator portion of the electromagnetic bearing to lock or unlock between the first frame 110 and the second frame 120.

In some embodiments, the locking mechanism 190 may include a plurality of locking holes, which may be provided on one of the first and second racks 110 and 120, and a locking tongue, which may be provided on the other of the first and second racks 110 and 120. For illustration, a plurality of locking holes are disposed on the first frame 110, and at this time, the locking tongue is disposed on the second frame 120. A plurality of locking holes may be located along a circumferential direction of the outer surface of the first housing 110, and the locking tongues may be inserted into the locking holes to lock the first housing 110 with the second housing 120. The locking tongues can be inserted into different locking holes, so that the first frame 110 and the second frame 120 can be locked at different relative positions after the first frame 110 rotates relative to the second frame 120.

The benefits that may be brought about by the medical system disclosed herein include, but are not limited to: (1) Through the arrangement mode of the first rack and the second rack, deviation between the part to be subjected to radiotherapy and the actual part to be treated can be avoided, so that the radiotherapy effect is ensured, meanwhile, the radiotherapy time can be shortened, the pain of a patient is relieved, the radiotherapy effect is ensured, the radiotherapy time can be shortened, and the pain of the patient is relieved; (2) The imaging quality of the image assembly is high, and the service life of the medical system is long due to the mechanism that the first stand and the second stand can rotate independently; (3) The first slip ring and the second slip ring are arranged to respectively transmit data of two devices (such as a first imaging assembly and a second radiotherapy assembly), the working processes of the two devices (such as the first imaging assembly and the second radiotherapy assembly) cannot interfere with each other, and the data transmission quantity is larger; (4) The medical system is reasonable in layout, the axial thickness is reduced, the movement of each part cannot interfere with each other, and the use is convenient. It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. Slip ring assembly, comprising a first slip ring, a second slip ring and a first data transmission assembly in signal connection with at least one of the first slip ring and the second slip ring.

2. Slip ring assembly as claimed in claim 1, wherein the first slip ring and the second slip ring are each in signal connection with the first data transmission assembly.

3. Slip ring assembly as claimed in claim 1, further comprising a second data transmission assembly, the first data transmission assembly being in signal connection with the first slip ring and the second data transmission assembly being in signal connection with the second slip ring.

4. Slip ring assembly as claimed in claim 1, wherein the first data transmission assembly comprises a first stationary ring; at least two of the first slip ring, the second slip ring, and the first stationary ring are circumferentially disposed.

5. Slip ring assembly as claimed in claim 4, wherein the first slip ring is arranged coplanar with the second slip ring.

6. Slip ring assembly as claimed in claim 5, wherein the first stationary ring is provided between the first slip ring and the second slip ring.

7. A medical system comprising a first gantry, a second gantry, a stationary gantry, and a slip ring assembly of any of claims 1-6; the first gantry is configured to mount at least a portion of a first imaging assembly or at least a portion of a first radiation therapy assembly, the second gantry is configured to mount at least a portion of a second imaging assembly and at least a portion of a second treatment assembly, wherein,

a first slip ring of the slip ring assembly is arranged on the first rack, and the first slip ring is in signal connection with the first imaging assembly or the first radiotherapy assembly;

and a second slip ring of the slip ring assembly is arranged on the second rack, and the second slip ring is in signal connection with the second imaging assembly or the second treatment assembly.

8. The medical system of claim 7, wherein the first data transmission assembly is disposed on the stationary gantry;

the second frame is provided with an accommodating space, at least part of the first frame is positioned in the accommodating space, and the first frame is rotatably connected to the second frame; and

the second frame is rotatably connected to the fixed frame.

9. The medical system of claim 7, wherein the first gantry has a first axis about which the first gantry rotates and the second gantry has a second axis about which the second gantry rotates, wherein the first axis intersects or is parallel to the second axis.

10. The medical system of claim 7, further comprising a locking mechanism disposed between the first housing and the second housing, or disposed on the first housing or/and the second housing.

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