Treatment chairs and treatment systems

Abstract

This application relates to a treatment chair and a treatment system. The treatment chair includes a leg support assembly and a back support assembly. The main leg support assembly supports the patient's legs and is height-adjustable in a first direction. The back support assembly supports the patient's back and is rotatable in a second direction to adjust its tilt angle. The leg support assembly and the back support assembly are adjusted collaboratively to position the patient in a lateral tilt position. This application, through independent adjustment of the leg and back support assemblies, provides stable support when the patient is laterally tilted, ensuring patient comfort and positioning accuracy during treatment.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more particularly to a treatment chair and treatment system. Background Technology

[0002] In boron neutron capture therapy (BNCT), the incident point is usually the cheek or jaw. However, existing horizontal supine positioning methods are limited by the interference between the patient's shoulders and the beam port wall, making it impossible to allow the head and neck to be fully close to the beam port. In vertical beam therapy rooms, supine positioning also makes it difficult to achieve circumferential head closeness. In addition, existing lateral decubitus positioning often uses a positioning pad for support, which is difficult for patients to maintain for a long time, easily leading to slippage, loss of positioning accuracy, and physical discomfort. Summary of the Invention

[0003] To address the aforementioned problems, this application provides a treatment chair for boron neutron capture therapy, comprising: A leg support assembly for supporting a patient's legs and moving up and down in a first direction to adjust their height; the leg support assembly includes a left leg support and a right leg support arranged in a third direction, and the left leg support and the right leg support are capable of moving up and down relatively independently in the first direction; and / or, a back support assembly for supporting a patient's back and moving in a second direction to adjust its tilt angle; the back support assembly includes a left back support and a right back support arranged in a third direction, and the left back support and the right back support are capable of adjusting their tilt angle relatively independently; wherein, By adjusting the leg support assembly and / or the back support assembly, the patient's body is placed in a lateral tilt position.

[0004] In one embodiment, the left leg support and the right leg support form a first support surface for supporting the patient's legs; the leg support assembly further includes a first flexible connector for maintaining the continuity of the first support surface when the left leg support and the right leg support move up and down relatively independently.

[0005] In one embodiment, a first gap is provided between the left leg support and the right leg support, and the first flexible connector is located within the first gap; and / or, the first flexible connector covers the surfaces of the left leg support and the right leg support, and the first flexible connector extends in a second direction to cover at least a portion of the first gap.

[0006] In one embodiment, the left back support and the right back support form a second support surface for supporting the patient's back; the back support assembly further includes a second flexible connector for maintaining the continuity of the second support surface when the left back support and the right back support are tilted relatively independently.

[0007] In one embodiment, a second gap is provided between the left back support and the right back support, the second flexible connector is located within the second gap, and / or the second flexible connector covers the surfaces of the left back support and the right back support, and the second flexible connector extends along a first direction to cover at least a portion of the second gap.

[0008] In one embodiment, both the left leg support and the right leg support include a support pad, and the support pad of the left leg support and the support pad of the right leg support together form the first support surface.

[0009] In one embodiment, the height of the support leg pad gradually decreases in the first direction along the positive direction of the second direction; wherein, The positive direction of the second direction is from the end of the support leg pad away from the back support component to the end of the support leg pad close to the back support component.

[0010] In one embodiment, both the left leg support and the right leg support include a first drive mechanism and a first multi-link mechanism, with one end of the first multi-link mechanism connected to the first drive mechanism. The first drive mechanism drives the corresponding support part to rise and fall through the first multi-link mechanism.

[0011] In one embodiment, both the left back support and the right back support include a support back pad, and the support back pad of the left back support and the support back pad of the right back support form the second support surface.

[0012] In one embodiment, both the left back support and the right back support include a second drive mechanism and a second multi-link mechanism, one end of which is connected to the second drive mechanism; the second drive mechanism drives the corresponding support to adjust the tilt angle through the second multi-link mechanism.

[0013] In one embodiment, a handrail assembly is further included for supporting the patient's arm and is capable of moving up and down along the first direction to support the patient's arm near the treatment side; the handrail assembly includes a left handrail support and a right handrail support arranged at intervals along a third direction, the left handrail support and the right handrail support are respectively located on both sides of the leg support assembly, and the left handrail support and the right handrail support are capable of moving up and down relatively independently.

[0014] In one embodiment, both the left armrest support and the right armrest support include a support hand pad, the support hand pad having a first end away from the back support assembly and a second end close to the back support assembly; The height of the support pad gradually decreases along the first direction from the first end to the second end.

[0015] In one embodiment, the first end of the support pad is capable of independently raising and lowering relative to the second end along a first direction; and / or, the first end of the support pad is capable of rotating relative to the second end about a first axis, the first axis being parallel to the first direction.

[0016] In one embodiment, the system further includes a main support structure comprising a first support member and a second support member connected to each other, the first and second support members having a predetermined angle to form a space for accommodating at least a portion of the patient's body; wherein... The leg support assembly is located on the first support member and moves up and down relative to the first support member in the first direction, and the back support assembly is located on the second support member and moves relative to the second support member in the second direction.

[0017] This application also provides a boron neutron capture therapy system, comprising: The treatment chair mentioned in any of the above embodiments; Positioning membrane fixing shell; the positioning membrane fixing shell is located on both sides of the treatment chair along the third direction, and the outer surface structure of the positioning membrane fixing shell is adapted to the outer contour of the end face of the treatment head, and the treatment head can approach and abut from the back side of the positioning membrane fixing shell.

[0018] In one embodiment, a positioning platform is also included, on which the treatment chair is movably disposed. The positioning platform is used to adjust the position of the treatment chair in the horizontal and / or vertical directions so that the positioning membrane fixing shell is aligned with the treatment head.

[0019] In one embodiment, a fixing bracket is further included, disposed on both sides of the positioning platform along a third direction, and the positioning membrane fixing shell is mounted on the positioning bracket. The fixing bracket is used to support and maintain the position of the positioning membrane fixing shell relative to the treatment head.

[0020] In one embodiment, a neck pad is also included, which is disposed between the positioning membrane fixing shell and the patient's head and neck to support the patient's head and neck.

[0021] In one embodiment, the neck pad is configured as a hollow structure, wherein the hollow region is adapted to the inner cavity shape of the positioning membrane fixing shell, and the radius of the hollow region is greater than or equal to the radius of the beam opening, so as to avoid the treatment beam.

[0022] In one embodiment, a positioning pad is also included, which is disposed between the patient's arm on the irradiated side and the chest to provide auxiliary support and fixation for the patient's upper body.

[0023] In one embodiment, a positioning film is further included. The positioning film is made of a thermoplastic material and has snap-fit ​​edges. The positioning film's fixing shell has at least one ring of through holes. The bayonet is used to engage and fix with the through hole on the positioning film fixing shell.

[0024] The technical solutions provided by the embodiments of this application may include the following beneficial effects: 1. A leg support assembly is mounted on a first support member to support the patient's legs and can be raised and lowered in a first direction to adjust its relative height. A back support assembly is mounted on a second support member to support the patient's back and can be rotated in a second direction to adjust its tilt angle. The leg support assembly and the back support assembly are adjusted in tandem. Simultaneously, through independent adjustment of the leg and back support assemblies, stable support can be provided when the patient is tilted to the side, ensuring patient comfort and positioning accuracy during treatment.

[0025] 2. The support surface has gaps, and flexible connectors are installed in the gaps to maintain the continuity of the support surface when the tilt angles of each component are adjusted relatively independently.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the treatment chair provided in one embodiment of this application from a certain perspective.

[0029] Figure 2 This is a schematic diagram of the structure of a treatment system provided in one embodiment of this application from a single perspective.

[0030] Figure 3 This is a partial structural schematic diagram of the treatment system provided in one embodiment of this application from another perspective.

[0031] Figure 4 This is a schematic diagram of the structure of a treatment system provided in one embodiment of this application during use.

[0032] Figure label: 1. Treatment chair; 2. Positioning platform; 3. Fixation bracket; 30. Positioning membrane fixation shell; 4. Neck pad; 5. Positioning pad; 6. Positioning membrane; 7. Treatment head.

[0033] 10. Main support frame; 101. First support component; 102. Second support component.

[0034] 11. Leg support assembly; 111. Left leg support; 112. Right leg support; 1110. Support leg pad; 1111. First multi-link mechanism.

[0035] 12. Back support assembly; 121. Left back support section; 122. Right back support section; 1210. Support back pad; 1211. Second multi-link mechanism.

[0036] 13. Handrail assembly; 131. Left handrail support; 132. Right handrail support; 1310. Support hand pad; 1311. Third multi-link mechanism.

[0037] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The manner described in the following exemplary embodiments does not represent all manner consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0039] As described in the background section, boron neutron capture therapy (BNCT) is an emerging particle radiotherapy technique. Unlike photon radiotherapy and proton / heavy ion radiotherapy, neutrons are easily scattered in the air, and the neutron flux can rapidly decrease to half within a few centimeters of the beam aperture. Therefore, BNCT positioning requires placing the patient close to the beam aperture to obtain sufficient radiation flux to the tumor area. Currently, BNCT is primarily indicated for head and neck tumors, such as tumors of the oral cavity, pharynx, nasal cavity, and ear, with the neutron beam incident point typically being the cheek or jaw.

[0040] However, existing horizontal supine positioning methods have significant limitations. When treating horizontal beams, although the upper part of the patient's head can be close to the beam port, tumors on the cheeks and neck are limited by the interference between the patient's shoulders and the beam port wall, preventing the patient from achieving sufficient close proximity. In vertical beam therapy rooms, while the supine treatment bed allows the face and neck to be close to the beam port, the head cannot be brought close circumferentially. Furthermore, existing lateral decubitus positioning typically uses a positioning pad to support the patient's non-irradiated shoulder, leaving the irradiated shoulder to bear the load alone. Patients find it difficult to maintain this position for extended periods and are prone to slipping along the incline, causing discomfort and loss of positioning accuracy.

[0041] Based on this, this application provides a treatment chair for boron neutron capture therapy, with reference to... Figure 1 , Figure 2 , Figure 3 and Figure 4 The treatment chair 1 includes a leg support assembly 11 and a back support assembly 12.

[0042] The leg support assembly 11 supports the patient's legs and is movable in a first direction X to adjust its height. The back support assembly 12 supports the patient's back and is movable in a second direction Y to adjust its tilt angle. The leg support assembly 11 and the back support assembly 12 are adjusted in coordination to keep the patient's body in a lateral tilt position when supported.

[0043] Specifically, the first direction X is the height direction of the patient's body. When the leg support component 11 moves up and down along the first direction X, it can change the relative height of the patient's thigh and buttocks, thereby adjusting the tilt posture of the patient's pelvis. The second direction Y is the thickness direction of the patient's body. When the back support component 12 rotates and tilts along the second direction Y, it can make the patient's back tilt to one side.

[0044] It should be noted that lateral tilt refers to a posture in which the patient's body is tilted to the left or right, that is, the patient's overall center of gravity is shifted to one side. In boron neutron capture therapy, by moderately tilting the patient's body to the side, the irradiation angle between the tumor target area and the treatment head can be matched, while avoiding critical organs, thus improving the accuracy and safety of the treatment. The achievement of the lateral tilt posture depends on the independent adjustment and coordinated cooperation of the leg support component and the back support component. For example, the leg support component performs asymmetrical raising and lowering, such as lowering the left side or raising the right side, so that the pelvis is pre-positioned in a left tilt posture; then the back support component moves to match the upper body with the pelvic posture, forming an overall lateral tilt.

[0045] This application, through the independent adjustment and mutual cooperation of the leg support component 11 and the back support component 12 in different directions, enables the patient to be stably positioned in a lateral tilt state. In this state, the lateral side of the patient's torso on the irradiated side is fully exposed, facilitating close proximity to the treatment beam port. Simultaneously, the adjustable structure provides differentiated support for the patient's legs and back, avoiding localized pressure or suspension caused by a single support surface. This significantly improves patient comfort and positioning stability during prolonged treatment, ensuring precise implementation of boron neutron capture therapy.

[0046] In some embodiments, the treatment chair 1 also includes a main support 10, with the leg support assembly 11 and the back support assembly 12 both located on the main support 10.

[0047] Specifically, the main support 10 includes a first support member 101 and a second support member 102 connected to each other. A leg support assembly 11 is mounted on the first support member 101 and moves up and down along a first direction X to adjust its height relative to the first support member 101. A back support assembly 12 is mounted on the second support member 102 and moves along a second direction Y to adjust its tilt angle relative to the second support member 102.

[0048] Furthermore, the first support member 101 and the second support member 102 have a preset angle to form a space for accommodating at least part of the patient's body.

[0049] Specifically, the preset angle is designed according to ergonomics to match the natural physiological angle of the patient's buttocks and back in a sitting position, usually between 90° and 120°, to ensure the patient's basic comfort when sitting.

[0050] Furthermore, the first support member 101 and the second support member 102 can be a split structure, which are connected by a hinge or rotation mechanism so that the included angle between them can be adjusted to meet the needs of patients of different body types or different treatment postures; or they can be a one-piece molded structure to improve the overall structural strength and stability.

[0051] In some implementations, reference continues. Figure 1 The leg support assembly 11 includes a left leg support 111 and a right leg support 112 arranged at intervals along a third direction Z, and the left leg support 111 and the right leg support 112 can be raised and lowered relatively independently along a first direction X.

[0052] Specifically, the third direction Z represents the patient's width direction, i.e., the direction of extension from the patient's left arm to the right arm. The left leg support 111 supports the patient's left leg, and the right leg support 112 supports the patient's right leg. When the left leg support 111 and the right leg support 112 can rise and fall relatively independently along the first direction X, it means that the support height of the left and right legs can be adjusted separately to adapt to the patient's tilted posture in different directions. For example, when the patient's left side of the head and neck needs treatment, the patient's body tilts to the left. At this time, the left leg, as the weight-bearing side, requires a relatively low support height, while the right leg, as the non-weight-bearing side, requires a relatively high support height to support the right leg and maintain body balance, thereby providing stable support for the patient during lateral tilting.

[0053] Furthermore, both the left leg support 111 and the right leg support 112 include a support leg pad 1110. The support leg pad 1110 of the left leg support 111 and the support leg pad 1110 of the right leg support 112 together form a first support surface for supporting the patient's legs, and the first support surface is configured as a separate structure with an independently adjustable height.

[0054] Specifically, the support leg pads 1110 are made of high-density memory foam or polyurethane foam, with an outer layer of waterproof and breathable fabric to ensure patient comfort during prolonged treatment. When the two support leg pads 1110 move independently, their respective upper surfaces together form a support area for both legs, providing differentiated support for the left and right legs respectively, avoiding suspension or pressure caused by inconsistent leg height.

[0055] In some embodiments, the first support surface has a first gap, and a first flexible connector is provided in the first gap to maintain the continuity of the first support surface when the support leg pad 1110 of the left leg support 111 and the support leg pad 1110 of the right leg support 112 rise and fall relatively independently.

[0056] Specifically, the first gap is a pre-reserved gap between the two support leg pads 1110 to ensure that they can move relatively independently without interference. The first flexible connector maintains the visual and tactile continuity of the support surface while ensuring independent movement, improving patient stability during transfer and position adjustments. Simultaneously, the elasticity of the first flexible connector needs to accommodate the maximum relative movement between the two support leg pads 1110, and is typically made of a stretchable and sufficiently strong material.

[0057] In one embodiment, the first flexible connector is configured as an elastic mesh fabric, which can adapt to the relative movement of the support leg pads 1110 and has good breathability; or it can be configured as a corrugated rubber sheet with a large amount of stretching; or it can be configured as a foldable canvas structure that unfolds when the support leg pads 1110 separate and folds when they come together. This application does not limit this, as long as it can achieve the function of maintaining the continuity of the support surface.

[0058] It should be noted that the flexible connector may not be provided between the two support leg pads 1110. In this case, the two support leg pads 1110 are completely separated and move independently. This method has a simpler structure and is easier to maintain and replace.

[0059] In some embodiments, both the left leg support 111 and the right leg support 112 include a first drive mechanism (not shown in the figure) and a first multi-link mechanism 1111. One end of the first multi-link mechanism 1111 is connected to the first drive mechanism, and the other end of the first multi-link mechanism 1111 is provided with a support leg pad 1110. The first drive mechanism drives the corresponding support leg pad 1110 to rise and fall through the first multi-link mechanism 1111.

[0060] Specifically, the first drive mechanism can be an electric push rod or a pneumatic push rod, and the first multi-link mechanism 1111 adopts a scissor link or a parallelogram link structure. When the first drive mechanism extends or retracts, it drives the first multi-link mechanism 1111 to unfold or retract, thereby driving the support leg pad 1110 to rise and fall smoothly.

[0061] Furthermore, the first multi-link mechanism 1111 is equipped with a guide rail and a slider to ensure that the support leg pad 1110 maintains a horizontal posture during the lifting and lowering process, and avoids tilting that could cause discomfort to the patient.

[0062] This design ensures that the lifting and lowering movement of the support leg pad 1110 is smooth and has a strong load-bearing capacity. At the same time, the multi-link mechanism has a smaller height when folded, which helps to reduce the overall height of the treatment chair 1 and makes it easier for patients to sit down.

[0063] In some embodiments, the height of the support leg pad 1110 gradually decreases along the first direction X from the direction from the first support member 101 toward the second support member 102.

[0064] This can also be understood as the leg support pad 1110 gradually decreasing in height from the knee to the hip, with the end closer to the knee being higher and the end closer to the hip being lower. This design allows the patient's legs to naturally assume a slightly elevated posture when initially seated, conforming to the ergonomic principle of a slightly upturned thigh. The leg support component 11 can effectively adjust the leg tilt angle within a short lifting stroke. This design helps reduce the stroke requirements of the drive mechanism, lowers structural complexity, and makes the leg support more conform to the physiological curves of the human body, thus improving comfort.

[0065] In one embodiment, the support leg pad 1110 is in the shape of a right trapezoid or approximately right trapezoid in the longitudinal section along the first support member 101 toward the second support member 102, with its thicker end facing toward the knee and its thinner end facing toward the hip, thereby providing leg support while naturally creating a slightly raised leg posture.

[0066] In some implementations, reference continues. Figure 1 The back support assembly 12 includes a left back support portion 121 and a right back support portion 122 arranged at Z intervals along the third direction, and the left back support portion 121 and the right back support portion 122 can adjust the tilt angle relatively independently.

[0067] As mentioned above, the third direction Z represents the patient's width, i.e., the extension direction from the left arm to the right arm. The leg support component 11 achieves differentiated adjustment of the patient's pelvic height through the independent raising and lowering of the left and right leg support parts 112, while the back support component 12 provides lateral limiting support for the patient's torso through the independent angle adjustment of the left and right back support parts 122. When the patient needs to tilt to the left to expose the left side of the head and neck for treatment, the right leg support part 112 rises, raising the patient's right pelvis and shifting the body's center of gravity to the left. Simultaneously, the tilt angle of the right back support part 122 increases, pushing against the patient's back from the right, working together with the raised right leg to stably tilt the patient's torso to the left. At this time, the left leg support part 111 lowers accordingly to adapt to the natural position of the left leg, while the left back support part 121 maintains a small angle or is in a follow-up state, only providing auxiliary support. Through the coordinated adjustment of the leg and back supports, a stable and controllable lateral tilt posture can be achieved while ensuring patient comfort.

[0068] Furthermore, both the left back support portion 121 and the right back support portion 122 include a support back pad 1210, and the support back pad 1210 of the left back support portion 121 and the support back pad 1210 of the right back support portion 122 together form a second support surface for supporting the patient's back, and the second support surface is configured as a split structure with an independently adjustable angle.

[0069] Similar to the leg support pad 1110, the back support pad 1210 can be made of high-density memory foam or polyurethane foam, with an outer layer of non-slip and breathable fabric to ensure patient comfort and support stability during long-term treatment.

[0070] In some embodiments, the second support surface has a second gap, and a second flexible connector is provided in the second gap to maintain the continuity of the second support surface when the support back pad 1210 of the left back support 121 and the support back pad 1210 of the right back support 122 are adjusted at relatively independent tilt angles.

[0071] Similar to the first flexible connector, the second flexible connector can be made of materials such as elastic mesh, corrugated rubber sheet or folded canvas, which will not be described in detail here.

[0072] In some embodiments, both the left back support 121 and the right back support 122 include a second drive mechanism (not shown in the figure) and a second multi-link mechanism 1211. One end of the second multi-link mechanism 1211 is connected to the second drive mechanism, and the other end of the second multi-link mechanism 1211 is provided with a support back pad 1210. The second drive mechanism drives the corresponding support back pad 1210 to adjust the tilt angle through the second multi-link mechanism 1211.

[0073] Similar to the leg support assembly 11, the second drive mechanism can be an electric push rod or a pneumatic push rod, and the second multi-link mechanism 1211 can be a hinged linkage structure to achieve smooth adjustment of the angle of the support back pad 1210. Further details are omitted here.

[0074] Furthermore, the tilt angle adjustment range of the left back support 121 and the right back support 122 relative to the second support 102 is between 0° and 45°. This range can meet the support needs of patients from standing to different degrees of lateral tilting, while avoiding excessive tilting that could lead to trunk instability or improper traction on the spine, thus ensuring safety and comfort during treatment.

[0075] In one embodiment, the support back pads 1210 have the same thickness, that is, the support back pads 1210 of the left back support portion 121 and the support back pads 1210 of the right back support portion 122 have a uniform thickness. This arrangement makes the back support surface flat overall, which is suitable for treatment scenarios that require uniform force on the back.

[0076] In another embodiment, the back support pad 1210 gradually decreases in thickness along the direction from the patient's head to their waist, that is, it is thicker near the shoulders and thinner near the waist. This arrangement conforms to the natural physiological curve of the human back, better conforming to the depression in the scapular region and the bulge in the waist region, providing effective support while avoiding local pressure, helping to improve the patient's comfort in a tilted position and enhancing the stability of the back support.

[0077] In some embodiments, the treatment chair 1 also includes an armrest assembly 13 mounted on the main support 10 for supporting the patient's arm and capable of moving up and down in a first direction X to support the patient's arm near the treatment side.

[0078] Specifically, the handrail assembly 13 is mounted on the first support member 101 and located on both sides of the leg support assembly 11. When the patient's body tilts to one side, the handrail assembly 13 is used to support the patient's arm on the same side or opposite side, preventing the arm from dangling or swaying, and ensuring the patient's overall stability during treatment.

[0079] Furthermore, the armrest assembly 13 includes a left armrest support 131 and a right armrest support 132 arranged at Z intervals along the third direction. The left armrest support 131 and the right armrest support 132 are located on both sides of the leg support assembly 11, and the left armrest support 131 and the right armrest support 132 can be raised and lowered relatively independently.

[0080] Specifically, the left armrest support 131 is used to support the patient's left arm, and the right armrest support 132 is used to support the patient's right arm. The relatively independent raising and lowering of the two arms can adapt to the different height requirements of the left and right arms under different tilting postures. For example, when the patient tilts to the left for treatment, the left arm, as the arm on the irradiated side, hangs down or extends forward naturally, and the left armrest support 131 can be appropriately lowered to support the left arm; the right arm is located on the opposite side of the body and may be raised as the body tilts, and the right armrest support 132 is raised accordingly to support the right arm, thereby keeping the shoulders level and the torso stable.

[0081] In some embodiments, both the left armrest support 131 and the right armrest support 132 include a support hand pad 1310. The armrest assembly 13 also includes a third drive mechanism (not shown) and a third multi-link mechanism 1311. One end of the third multi-link mechanism 1311 is connected to the third drive mechanism, and the other end of the third multi-link mechanism 1311 is provided with the support hand pad 1310. The third drive mechanism drives the corresponding support hand pad 1310 to rise and fall through the third multi-link mechanism 1311.

[0082] Furthermore, the lifting and lowering drive of the support hand pad can also employ other conventional lifting methods instead of the aforementioned combination of multi-link mechanism and drive mechanism. For example, an electric push rod can be used to directly drive the lifting and lowering of the support hand pad. The end of the telescopic rod of the electric push rod is fixedly connected to the support hand pad, and the height is adjusted by controlling the extension and retraction of the push rod through a controller. For example, a lead screw and nut mechanism can be used to convert the rotation of the rotary motor into the linear lifting and lowering motion of the support hand pad. For example, a rack and pinion mechanism can be used, where a motor drives the gear to move along the rack, thereby raising and lowering the support hand pad. Examples of these methods will not be elaborated further here.

[0083] In one embodiment, similar to the leg support assembly 11 and the back support assembly 12, the support hand pad 1310 may be made of memory foam or polyurethane foam, with an outer layer covered with a skin-friendly and breathable fabric. Of course, the drive mechanism may also be an electric actuator or a pneumatic actuator, and the multi-link mechanism may be a scissor linkage or a parallelogram structure, consistent with the leg support assembly 11.

[0084] In some embodiments, the height of the support pad 1310 gradually decreases along the first direction X from the direction from the first support 101 toward the second support 102.

[0085] Specifically, similar to the leg support pad 1110, the arm support pad 1310 gradually decreases in height from the wrist to the elbow, with the end closer to the wrist being higher and the end closer to the elbow being lower. This design conforms to the physiological curve of the human arm when it is naturally placed, providing effective support while avoiding localized pressure and improving patient comfort in a tilted position. At the same time, this pre-tilted design also reduces the required lifting stroke of the armrest assembly 13, making the structure more compact.

[0086] This application also provides a boron neutron capture therapy system, referring to... Figure 2 , Figure 3 and Figure 4 It includes a treatment chair 1, a positioning platform 2, and a fixing bracket 3. The treatment chair 1 is used to carry and support the patient, the positioning platform 2 is used to carry the treatment chair 1 and provide a base for the treatment chair 1 to move, and the fixing bracket 3 is used to install the positioning membrane fixing shell 30.

[0087] Specifically, the positioning platform 2 is installed in the treatment room, and the treatment chair 1 is movably mounted on the positioning platform 2. The positioning platform 2 is configured to move the treatment chair in the horizontal plane along the in-and-out direction and the lateral direction, so that the treatment chair 1 moves out of the treatment head irradiation area when the patient moves up or down, and moves to a preset treatment position and aligns with the treatment head during treatment.

[0088] Specifically, the direction of entry and exit is the front-to-back direction of the treatment chair relative to the treatment head. When the treatment chair moves away from the treatment head along the direction of entry and exit, it provides ample space for the patient to get on and off the chair, facilitating positioning by medical staff. When the treatment chair moves closer to the treatment head along the direction of entry and exit, it allows the patient's body to gradually enter the irradiation range of the treatment head, achieving initial positioning of the treatment location. It can be understood that the direction of entry and exit in this embodiment can be understood as the second direction Y mentioned in the above embodiment.

[0089] The lateral direction refers to the left-right direction of the treatment chair relative to the treatment head. When the treatment chair moves in this lateral direction, the patient's body can shift to the left or right, achieving precise alignment between the treatment head's irradiation center and the patient's tumor target area. This movement, combined with the patient's own tilt adjustment, allows the tumor target area to be aligned with the treatment head's irradiation window at the optimal angle, while effectively avoiding critical organs, improving treatment accuracy and safety. It can be understood that the lateral direction in this embodiment can be understood as the third direction Z mentioned in the above embodiments.

[0090] Furthermore, the fixing bracket 3 is disposed on both sides of the positioning platform 2 along the third direction Z, and a positioning membrane fixing shell 30 is installed on the fixing bracket 3. The outer surface structure of the positioning membrane fixing shell 30 is adapted to the outer contour of the end face of the treatment head 7, and the treatment head 7 can approach and abut from the back side of the positioning membrane fixing shell 30.

[0091] The outer surface structure of the positioning membrane fixing shell 30 is adapted to the outer contour of the end face of the treatment head 7 to ensure that when the treatment chair 1 moves to the treatment position, the positioning membrane fixing shell 30 can achieve surface contact with the end face of the treatment head 7, ensuring that the relative position between the treatment head 7 and the patient's irradiated part is accurate and controllable, and avoiding irradiation deviation caused by poor contact.

[0092] In some embodiments, the treatment system also includes a neck cushion 4. The neck cushion 4 is disposed between the positioning membrane fixation shell 30 and the patient's head and neck to support the patient's head and neck.

[0093] Specifically, the neck pad 4 is a relatively independent flexible pad that is placed between the positioning membrane fixation shell 30 and the patient's head and neck during treatment to fill the gap between them and provide comfortable support.

[0094] Furthermore, the neck pad 4 can be customized with surface depressions according to different patient irradiation sites, so as to provide uniform support to the patient's body surface when the patient's cheek or neck is close to the positioning film fixing shell 30, disperse local pressure, and improve the patient's comfort during long-term treatment.

[0095] Furthermore, the neck pad 4 is configured as a hollow structure, the hollow region of which is adapted to the inner cavity shape of the positioning membrane fixing shell 30, and the radius of the hollow region is greater than or equal to the radius of the beam port, so as to achieve unobstructed avoidance of the treatment beam and ensure that the neutron beam can pass smoothly and irradiate the patient's target area.

[0096] Furthermore, the neck pad 4 is made of hollow rigid sponge, which combines support and comfort, and is wrapped with waterproof and breathable fabric for easy cleaning and disinfection.

[0097] In some embodiments, the treatment system also includes a positioning pad 5. The positioning pad 5 is positioned between the patient's arm on the irradiated side and the chest to provide auxiliary support and fixation for the patient's upper body.

[0098] Specifically, during treatment, when the patient is in a tilted position, a gap will form between the arm on the irradiated side and the chest. The positioning pad 5 fills this gap, supporting the arm from below and pressing against the chest to prevent the patient's body from twisting or swaying during treatment.

[0099] Furthermore, the positioning pad 5 is made of rigid sponge and is designed with different slope angles according to the differences in patient body shape, so as to adapt to the chest curve and arm position of different patients and provide personalized stable support.

[0100] This design effectively enhances the fixation of the patient's upper body in a tilted position. Together with the leg support component 11, back support component 12, and handrail component 13, it forms a multi-point support system, comprehensively improving the stability of the patient's posture.

[0101] In some embodiments, the treatment system further includes a positioning membrane 6. The positioning membrane 6 is made of thermoplastic material and has snap-fit ​​edges. The positioning membrane fixing housing 30 has at least one ring of through holes. The through holes and snap-fit ​​edges are fixed by bolts (see reference). Figure 4 (As shown). Of course, in other embodiments, the bayonet can be a protruding structure, which is used to engage and fix with the through hole on the positioning film fixing shell 30.

[0102] It should be noted that, in Figure 4 The location of the bolt is indicated by a cross shape. At the location of the cross shape, a through hole is provided on the positioning film fixing shell 30, and a bayonet is provided on the positioning film 6. The bayonet is also a hole structure.

[0103] The positioning membrane is used for final non-invasive fixation of the patient's head and neck. During treatment, the heated and softened positioning membrane is placed over the patient's head and neck, and the edge clips are inserted into the through holes of the positioning membrane fixing shell 30. After the positioning membrane cools and hardens, it forms a rigid shell that fits tightly against the patient's body surface, locking the patient's head and neck in the predetermined position. This ensures that the patient's head will not shift during prolonged irradiation, guaranteeing the accuracy of the treatment.

[0104] In some embodiments, for treatment rooms equipped with floor rails, a rotary translation stage is installed on the floor rails, and the treatment chair 1 is mounted on the guide rails of the rotary translation stage. The rotary translation stage can drive the treatment chair to rotate around a vertical axis to switch between left and right treatment positions; at the same time, it can drive the treatment chair to move horizontally along the floor rails to adjust the front-to-back distance between the treatment chair and the treatment head.

[0105] In use, firstly, according to the side the patient needs to be irradiated, the treatment chair is rotated to the corresponding left or right treatment position using a rotating translation stage; then, the rotating translation stage moves the treatment chair along the ground rail towards the treatment head until the treatment chair moves to the predetermined position in front of the treatment head; next, the treatment chair 1 moves laterally along the second guide rail set on the rotating translation stage, so that the positioning membrane fixing shell 30 slowly approaches the beam port; finally, the outer surface of the positioning membrane fixing shell 30 fits tightly against the end face of the treatment head, completing the insertion process.

[0106] This setup, through the cooperation of the rotating translation stage with the ground rail and the second guide rail, enables the treatment chair to rotate and translate within a large range and to be precisely positioned within a small range. This not only meets the switching requirements for bilateral irradiation but also ensures the precise fit between the positioning membrane fixing shell 30 and the end face of the treatment head 7.

[0107] This application also provides a positioning method for the aforementioned treatment system, applicable to the treatment system mentioned in any of the above embodiments. The treatment method includes steps S100 to S600: Step S100: Have the patient sit on the treatment chair, and adjust the height of the leg support component according to the height of the patient's upper body and the irradiated area until the position of the irradiated body is aligned with the beam port in the vertical direction.

[0108] Specifically, after the patient is seated, medical staff first determine the vertical height of the irradiated area (such as the cheek or jaw) using visual inspection or a laser positioning device. Then, by controlling a switch, they raise and lower the leg support assembly, adjusting the support height of the patient's pelvis and thighs, thereby changing the overall vertical position of the patient's upper body until the irradiated area is vertically aligned with the center of the beam port of the treatment head. This step lays the foundation for precise irradiation in a tilted position.

[0109] Step S200: Tilt the patient's body toward the irradiated side, align the irradiated body part with the beam port in the horizontal direction, and raise the opposite leg support to support the patient's center of gravity after tilting. At the same time, adjust the angle of the back support on the same side to fit the patient's back after tilting.

[0110] Specifically, when a patient needs to tilt to the left to expose the left side of their head and neck, first raise the right leg support, lifting the patient's right pelvis and naturally shifting the body's center of gravity to the left. Simultaneously, increase the tilt angle of the right back support, pushing against the patient's back from the right side. Together with the raised right leg, this works to stably tilt the patient's torso to the left. At this time, the left leg support is lowered accordingly to accommodate the natural position of the left leg, while the left back support remains at a smaller angle or is in a follow-up state, only providing auxiliary support. Through the coordinated adjustment of the legs and back, a stable and controllable lateral tilt posture is achieved.

[0111] Step S300: Place the patient's irradiated arm on the armrest assembly and place the positioning pad between the irradiated arm and the chest.

[0112] Specifically, after the patient tilts to the side, the arm on the irradiated side is placed naturally on the armrest assembly on the same side, and the lifting position of the armrest assembly is slightly adjusted according to the height of the arm. Then, the positioning pad is inserted into the gap between the arm on the irradiated side and the chest, so that the inclined surface of the positioning pad conforms to the lower side of the arm and the curve of the chest, supporting the arm from below while pressing against the chest to prevent the arm from slipping and the torso from twisting, further enhancing the stability of the upper body.

[0113] Step S400: Place the neck pad between the positioning membrane fixation shell and the patient's head and neck.

[0114] Specifically, based on the shape of the patient's head and neck and the irradiated area, a suitable concave neck pad is selected, placed inside the positioning membrane's fixing shell, and its position is adjusted to fit the patient's cheek or neck. The hollow area of ​​the neck pad is aligned with the beam port to ensure unobstructed beam flow during subsequent irradiation, while providing soft and comfortable support for the patient's head and neck.

[0115] Step S500: The heated and softened positioning film is installed on the positioning film fixing shell so that the positioning film fits the patient's head and neck surface. After cooling, it hardens and sets.

[0116] Specifically, the positioning film is softened by immersing it in hot water at 65℃-75℃, then quickly placed over the patient's head and neck. The snaps on the edge of the positioning film are aligned with the through holes on the fixing shell and secured. As the positioning film cools to room temperature, it is gently smoothed to ensure a close fit to the contours of the patient's face or neck. After cooling, the positioning film hardens to form a rigid shell that perfectly conforms to the patient's skin, precisely locking the patient's head and neck in the predetermined position.

[0117] Step S600: Push the treatment chair into the treatment position so that the positioning membrane fixing shell is in close contact with the end face of the treatment head, and perform the treatment.

[0118] Specifically, a robotic arm or a ground-rail translation stage drives the treatment chair to move along the positioning platform, slowly pushing the chair into the treatment position until the outer surface of the positioning membrane fixing shell is completely in contact with the end face of the treatment head. During the contact process, an emergency stop switch installed on the end face of the treatment head monitors the contact force in real time to avoid excessive compression. After confirming that the contact is correct, the boron neutron capture therapy equipment is activated to begin irradiating the patient's irradiated area.

[0119] The terms "first," "second," and similar terms used in this application and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, unless otherwise specified. "A plurality" or "multiple" means two or more. The term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0120] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A treatment chair for boron neutron capture therapy, characterized in that, include: A leg support assembly for supporting the patient's legs and for raising and lowering along a first direction to adjust its height; The leg support assembly includes a left leg support and a right leg support arranged along a third direction, and the left leg support and the right leg support can be raised and lowered relatively independently along the first direction. A back support assembly for supporting the patient's back and moving in a second direction to adjust its tilt angle; the back support assembly includes a left back support and a right back support arranged in a third direction, and the left back support and the right back support can adjust their tilt angles relatively independently. The main support frame includes a first support member and a second support member connected to each other, with a predetermined angle between the first and second support members to form a space for accommodating at least part of the patient's body; a leg support assembly is located on the first support member and moves up and down relative to the first support member along a first direction; a back support assembly is located on the second support member and moves relative to the second support member along a second direction; wherein... By adjusting the leg support assembly and the back support assembly, the patient's body is placed in a side-tilting position.

2. The treatment chair according to claim 1, characterized in that, The left leg support and the right leg support form a first support surface for supporting the patient's legs; the leg support assembly also includes a first flexible connector for maintaining the continuity of the first support surface when the left leg support and the right leg support rise and fall relatively independently.

3. The treatment chair according to claim 2, characterized in that, A first gap exists between the left leg support and the right leg support, and the first flexible connector is located within the first gap; or... The first flexible connector covers the surfaces of the left leg support and the right leg support, and extends along a second direction to cover at least a portion of the first gap.

4. The treatment chair according to claim 1, characterized in that, The left and right back support portions form a second support surface for supporting the patient's back; the back support assembly also includes a second flexible connector for maintaining the continuity of the second support surface when the left and right back support portions are tilted relatively independently.

5. The treatment chair according to claim 4, characterized in that, A second gap exists between the left back support and the right back support, and the second flexible connector is located within the second gap, or... The second flexible connector covers the surfaces of the left back support and the right back support, and extends along a first direction to cover at least a portion of the second gap.

6. The treatment chair according to claim 2, characterized in that, Both the left leg support and the right leg support include a support pad, and the support pad of the left leg support and the support pad of the right leg support together form the first support surface.

7. The treatment chair according to claim 6, characterized in that, The height of the supporting leg pad gradually decreases in the first direction along the positive direction of the second direction; wherein, The positive direction of the second direction is from the end of the support leg pad away from the back support component to the end of the support leg pad close to the back support component.

8. The treatment chair according to claim 1, characterized in that, Both the left leg support and the right leg support include a first drive mechanism and a first multi-link mechanism, with one end of the first multi-link mechanism connected to the first drive mechanism. The first drive mechanism drives the corresponding support part to rise and fall through the first multi-link mechanism.

9. The treatment chair according to claim 4, characterized in that, Both the left back support and the right back support include a support back pad, and the support back pad of the left back support and the support back pad of the right back support form the second support surface.

10. The treatment chair according to claim 1, characterized in that, Both the left and right back support portions include a second drive mechanism and a second multi-link mechanism. One end of the second multi-link mechanism is connected to the second drive mechanism. The second drive mechanism drives the corresponding support portion to adjust its tilt angle through the second multi-link mechanism.

11. The treatment chair according to claim 1, characterized in that, It also includes a handrail assembly for supporting the patient's arm and capable of moving up and down along the first direction to support the patient's arm near the treatment side; the handrail assembly includes a left handrail support and a right handrail support arranged along a third direction, the left handrail support and the right handrail support are respectively located on both sides of the leg support assembly, and the left handrail support and the right handrail support can be moved up and down relatively independently.

12. The treatment chair according to claim 11, characterized in that, Both the left armrest support and the right armrest support include a support hand pad, and the support hand pad includes a first end away from the back support component and a second end close to the back support component; The height of the support pad gradually decreases along the first direction from the first end to the second end.

13. The treatment chair according to claim 12, characterized in that, The first end of the support pad can be raised and lowered independently relative to the second end along a first direction; and / or, the first end of the support pad can rotate relative to the second end about a first axis, the first axis being parallel to the first direction.

14. A boron neutron capture therapy system, characterized in that, include: The treatment chair according to any one of claims 1 to 13; Positioning film fixing shell; The positioning membrane fixing shell is located on both sides of the treatment chair along the third direction, and the outer surface structure of the positioning membrane fixing shell is adapted to the outer contour of the end face of the treatment head, and the treatment head can approach and abut from the back side of the positioning membrane fixing shell.

15. The treatment system according to claim 14, characterized in that, It also includes a positioning platform on which the treatment chair is movably mounted. The positioning platform is used to adjust the position of the treatment chair in the horizontal and / or vertical directions so that the positioning membrane fixing shell is aligned with the treatment head.

16. The treatment system according to claim 15, characterized in that, It also includes a fixing bracket, which is disposed on both sides of the positioning platform along a third direction. The positioning membrane fixing shell is mounted on the fixing bracket, and the fixing bracket is used to support and maintain the position of the positioning membrane fixing shell relative to the treatment head.

17. The system according to claim 16, characterized in that, It also includes a neck pad, which is disposed between the positioning membrane fixing shell and the patient's head and neck, and is used to support the patient's head and neck.

18. The system according to claim 17, characterized in that, The neck pad is configured as a hollow structure, the hollow area of ​​which is adapted to the inner cavity shape of the positioning membrane fixing shell, and the radius of the hollow area is greater than or equal to the radius of the beam opening, so as to avoid the treatment beam.

19. The system according to claim 16, characterized in that, It also includes a positioning pad, which is placed between the patient's arm on the irradiated side and the chest to provide auxiliary support and fixation for the patient's upper body.

20. The system according to claim 14, characterized in that, It also includes a positioning film made of thermoplastic material, with snap-fit ​​edges, and the positioning film fixing shell has at least one ring of through holes; wherein, The bayonet is used to engage and fix with the through hole on the positioning film fixing shell.

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