Shallow X-ray treatment system

Abstract

The utility model provides a superficial layer X-ray treatment system which comprises a movable host and a superficial layer X-ray treatment head, the superficial layer X-ray treatment head is installed on the top of the movable host through a treatment head supporting assembly, the treatment head supporting assembly comprises a lifting column and an operation arm which are connected, and the operation arm is a cantilever or a collaborative robot arm; the superficial layer X-ray treatment head comprises a treatment head shell and an X-ray tube arranged in the treatment head shell, the X-ray tube is provided with a beam outlet, and the beam outlet is aligned with a first ray outlet formed in the treatment head shell; a multi-mode filtering assembly is rotatably arranged outside the X-ray tube in a sleeving manner, the multi-mode filtering assembly is provided with a ray shielding plate and a plurality of ray filtering plates which are annularly arranged, and the ray shielding plate and the ray filtering plates are configured to be selectively arranged between the beam outlet and the first ray outlet; the treatment head shell is detachably connected with beam limiting devices of different specifications at the first ray outlet through a rotary bayonet flange assembly. According to the application, the treatment area can be locked more accurately and quickly, the treatment dosage can be adjusted more flexibly and efficiently, functions are enriched, and process control is intelligent.

Description

Technical Field

[0001] The present application relates to a superficial X-ray treatment system, belonging to the technical field of superficial X-ray radiotherapy. Background Art

[0002] X-rays are electromagnetic radiation with a wavelength between ultraviolet rays and gamma rays. It is a very short wavelength electromagnetic radiation, with a wavelength of about (20 to 0.06) × 10-8 cm. X-rays are mainly used in the following aspects in medicine: diagnosis, treatment and protection.

[0003] X-ray therapy can be divided into tumor radiotherapy and superficial radiotherapy according to the depth of treatment. Tumor radiotherapy uses X-rays with high energy, strong penetration and deep irradiation to act on tumors at deeper locations, destroying or inhibiting the irradiated cell tissues to achieve the purpose of treatment. However, when used for superficial treatment, it may cause damage to subcutaneous tissue and cause complications to normal tissues.

[0004] Superficial radiotherapy uses soft X-rays, which is a low-energy radiotherapy with shallow tissue penetration. It is suitable for the treatment of superficial diseases, such as pathological scars (keloids, hypertrophic scars), warts, familial benign chronic pemphigus, keratosis pilaris and other benign skin diseases, as well as skin tumors such as squamous cell carcinoma and mycosis fungoides. Before irradiation, the normal skin around the incision will be protected with lead sheet. The vertical depth of irradiation does not exceed 2cm, and the depth of action is shallow, which is better for protecting deep organs under the skin.

[0005] At present, the X-ray superficial radiotherapy equipment in the related art, such as the CN102430207A superficial X-ray treatment system, is provided with a complete machine frame, a catheter support device and an X-ray tube treatment head device, wherein the X-ray tube treatment head device is provided with a handle, a filter rotating sleeve and a beam catcher clamping device. Although a certain manual filtering selection can be achieved through the filter rotating sleeve, the relative position and angle of the X-ray tube treatment head device and the catheter support device can be adjusted by operating the handle, and the beam catcher can be disassembled and assembled through the beam catcher, the rationality of the structural design, the degree of automation of the performance and the accuracy of the effect need to be improved. Utility Model Content

[0006] The embodiments of the present application provide a shallow X-ray treatment system that can lock the treatment area more accurately and quickly, adjust the treatment dose more flexibly and efficiently, and has rich functions and intelligent process control.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] The embodiment of the present application provides a superficial X-ray therapy system, comprising a movable mainframe and a superficial X-ray therapy head, wherein the superficial X-ray therapy head is mounted on the top of the movable mainframe through a therapy head support assembly, wherein the therapy head support assembly comprises a lifting column and an operating arm connected thereto, wherein the operating arm is a cantilever or a collaborative robot arm;

[0009] The shallow layer X-ray treatment head comprises a treatment head shell and an X-ray tube arranged inside the treatment head shell, wherein the X-ray tube has a beam outlet, and the beam outlet is aligned with a first ray outlet opened in the treatment head shell;

[0010] A multi-mode filter assembly is rotatably mounted on the outside of the X-ray tube, and the multi-mode filter assembly is provided with a ray shielding plate and a plurality of ray filtering plates arranged in an annular direction, and the ray shielding plate and the ray filtering plate are configured to be placed between the beam outlet and the first ray outlet at one of the two.

[0011] The treatment head housing is detachably connected to beam limiters of different specifications at the first ray outlet by rotating the bayonet flange assembly.

[0012] In one possible implementation, when the operating arm is a cantilever, a connecting bracket with a locking assembly is provided on the outside of the treatment head shell, and the treatment head shell can be rotated at a preset angle relative to the connecting bracket and fixed by the locking assembly, and the connecting bracket is rotatably connected to the cantilever.

[0013] In a possible implementation, the connecting bracket includes a treatment head rotating fixed block detachably connected to the outside of the treatment head shell; the treatment head rotating fixed block and the treatment head shell can be relatively rotated 180° through the treatment head rotating sleeve and the limiting structure, so that the beam outlet of the X-ray tube can be switched between vertically downward and vertically upward.

[0014] In one possible implementation, the limiting structure includes a non-closed annular groove opened on the outer periphery of the treatment head shell and a protrusion arranged on the treatment head rotation fixing block and extending into the treatment head rotation sleeve, and the protrusion is slidably fitted in the closed annular groove and limited by the two end portions of the non-closed annular groove.

[0015] In a possible implementation, the locking assembly includes a slider, a friction plate and a hand-tightening knob. The slider is disposed in the treatment head rotating fixed block and is configured to be able to extend and retract along the radial direction of the treatment head rotating sleeve. The front end of the slider is fixedly connected to the friction plate and can extend into the interior of the treatment head rotating sleeve to act on the treatment head housing; the hand-tightening knob adopts conical surface fit and spiral fit with the slider and the treatment head rotating fixed block along its center line.

[0016] In a possible implementation, when the operating arm is a collaborative robot arm, the collaborative robot arm is mounted to the treatment head shell through a six-dimensional force sensor, and a treatment head handle is also provided on the treatment head shell.

[0017] In a possible implementation, the superficial X-ray treatment head also includes a laser indication component disposed on the treatment head shell, and the laser indication component is used to emit a laser ray aimed at the ray output port of the beam limiter, and the laser ray intersects with the X-ray coming out of the beam limiter to form a treatment center point.

[0018] In a possible implementation, the rotating bayonet flange assembly includes a beam limiter fixed clamp and a beam limiter movable clamp, the beam limiter fixed clamp is fixedly connected to the treatment head housing, and the beam limiter movable clamp is elastically connected to the beam limiter fixed clamp and can coaxially rotate relative to a predetermined distance;

[0019] The fixed clamp of the limiter and the movable clamp of the limiter are respectively provided with a card interface cooperating with the limiter and a card entrance corresponding to the card interface; the movable clamp limit plate of the limiter is configured to reduce the overlapping area between the card interface and the card entrance to zero by twisting.

[0020] In a possible implementation, the multi-mode filter assembly includes a rotating bracket; the X-ray tube is installed inside the treatment head housing through a ray tube jacket, a second ray outlet aligned with the beam outlet is provided on the ray tube jacket, and the rotating bracket is rotatably sleeved on the outside of the ray tube jacket and covers the second ray outlet;

[0021] The rotating bracket is circumferentially arranged with a plurality of apertures corresponding to the second ray outlet, and a ray shielding plate and a plurality of ray filtering plates are fixed to each of the apertures one by one; the rotating bracket is configured to stop rotating when one of the ray shielding plate and the ray filtering plate is aligned with the second ray outlet.

[0022] In a possible implementation, the multi-mode filter assembly further includes a drive motor, a motor drive board, and a limit switch;

[0023] The driving motor is connected to the outer sleeve of the ray tube and is in transmission connection with a motor driving plate fixedly connected to the end of the rotating bracket; the motor driving plate is provided with a plurality of collision members corresponding to a ray shielding plate and a plurality of ray filtering plates one by one, and the collision members are used to trigger a limit switch fixed to the housing of the treatment head, and the limit switch is control-connected to the driving motor.

[0024] The utility model application provides a shallow X-ray treatment system, which can enrich the functional types of the treatment head, lock the treatment area more accurately and quickly, adjust the treatment dose more flexibly and efficiently, and is conducive to the automation and intelligence of process control by setting a shallow X-ray treatment head supporting assembly including a lifting column and an operating arm, and can meet the comprehensive and multi-dimensional flexible treatment by using the operating arm of a cantilever or a collaborative robot arm with a lifting column, while helping to simplify the structure.

[0025] The structure of the present application and its other application objects and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A stereoscopic diagram of a shallow X-ray treatment system provided in the first embodiment of the present application.

[0028] Figure 2-Figure 8 A schematic diagram of the structure of a superficial X-ray treatment head in a superficial X-ray treatment system provided in the first embodiment of the present application, wherein Figure 2 For a stereogram, Figure 3 For the main view, Figure 4 is the rear view, Figure 5 is a top view, Figure 6 For bottom view, Figure 7 is the left view, Figure 8 It is the right view.

[0029] Figure 9-12 This is a partial structural schematic diagram of a shallow layer X-ray therapy head in a shallow layer X-ray therapy system provided in the first embodiment of the present application after the high voltage cable maintenance housing is removed. Fig. 9 For a stereogram, Fig.10 For the main view (remove the connecting bracket), Fig.11 is the rear view, Fig.12 It is a side view.

[0030] Figure 13-Figure 14 This is a schematic diagram of the structure of a connection bracket for a shallow layer X-ray therapy head in a shallow layer X-ray therapy system provided in the first embodiment of the present application. Fig.13For a stereogram, Fig.14 An exploded view.

[0031] Attached Figure 1-13 Marking instructions:

[0032] 100-removable host;

[0033] 200-Superficial X-ray treatment head;

[0034] 210-treatment head shell; 211-ray tube shell; 2111-treatment head upper shell; 2111-1-treatment head repair cover; 2112-treatment head lower shell; 212-high voltage cable repair shell; 2121-high voltage cable repair upper cover; 2122-high voltage cable repair lower cover;

[0035] 220-X-ray tube; 226-beam limiter;

[0036] 240-swivel bayonet flange assembly;

[0037] 250-Connection bracket;

[0038] 251-locking assembly; 2511-sliding block; 2512-friction plate; 2513-hand-tightening knob;

[0039] 252-treatment head rotation fixing block; 2521-treatment head rotation upper fixing block 2521; 2522-treatment head rotation lower fixing block 2522;

[0040] 254-limiting structure;

[0041] 2541- non-enclosed annular groove; 2542- bidirectional transition groove; 2543- convex part;

[0042] 253-treatment head rotating sleeve; 2531-treatment head rotating upper sleeve; 2532-treatment head rotating lower sleeve 2532;

[0043] 260-laser indication assembly; 261-distance detection fixing frame; 262-laser emitting component;

[0044] 300-treatment head support assembly;

[0045] 310-Lifting column;

[0046] 320-operating arm; 321-cantilever.

[0047] Fig.15 A stereoscopic diagram of a shallow X-ray treatment system provided for the second embodiment of the present application.

[0048] Figure 16-Figure 22A schematic diagram of the structure of a shallow X-ray treatment head in a shallow X-ray treatment system provided in the second embodiment of the present application, wherein Fig.16 For a stereogram, Fig.17 For the main view, Fig.18 is the rear view, Fig.19 is a top view, Fig. 20 For bottom view, Fig.21 is the left view, Fig. 22 It is the right view.

[0049] Figure 23-Figure 25 This is a partial structural schematic diagram of a shallow layer X-ray therapy head in a shallow layer X-ray therapy system provided in the second embodiment of the present application after the high voltage cable maintenance housing is removed. Fig.23 For a stereogram, Fig.24 For the main view, Fig.25 It is a side view.

[0050] Attached Figure 15-25 Marking instructions:

[0051] 100-removable host;

[0052] 200-Superficial X-ray treatment head;

[0053] 210-treatment head shell; 211-ray tube shell; 2111-treatment head front shell; 2111-1-treatment head maintenance cover; 2112-treatment head rear shell; 212-high-voltage cable maintenance shell; 2121-high-voltage cable maintenance front cover; 2122-high-voltage cable maintenance rear cover;

[0054] 220-X-ray tube; 227-X-ray tube outlet plug;

[0055] 240-swivel bayonet flange assembly;

[0056] 260-laser indication assembly; 261-distance detection fixing frame; 262-laser emitting component;

[0057] 300-treatment head support assembly;

[0058] 310-Lifting column;

[0059] 320- operating arm; 322- collaborative robot arm; 3221- six-dimensional force sensor; 3222- treatment head handle.

[0060] Figure 26-Figure 29 The schematic diagram of the structure of the rotating bayonet flange assembly in the low-energy X-ray treatment head provided by the first and second embodiments of the utility model application, wherein Fig.26 For a stereogram, Fig. 27 For the decomposition diagram, Fig.28 For the main view, Fig.29 This is the rear view.

[0061] Figure 30-Figure 32 The schematic diagram of the structure of the X-ray tube + multi-mode filter assembly in the low-energy X-ray treatment head provided in the first and second embodiments of the utility model application, wherein Fig.30 For a stereogram, Fig.31 For the decomposition diagram, Fig.32 It is a side view.

[0062] Attached Figure 26-32 Marking instructions:

[0063] 220-X-ray tube; 221-ray tube jacket; 222-ray tube high-voltage wire; 223-high-voltage wire fixing flange; 224-ray tube flange fixing seat; 225-cooling water pipe;

[0064] 230-multi-mode filter assembly; 231-rotating bracket; 231-1-orifice; 232-rotating bearing; 2321-bearing positioning ring; 233-filter plate sleeve; 2331-filter plate front sleeve; 2332-filter plate rear sleeve; 234-ray shielding plate; 235-ray filter plate; 236-drive motor; 237-motor drive board; 2371-collision member; 238-limit switch;

[0065] 240-swivel bayonet flange assembly;

[0066] 241- beam limiter fixing card; 2411- beam limiter fixing bayonet; 2411-1-card interface;

[0067] 242-cable limiter movable clamp; 2421-cable limiter movable clamp stopper plate; 2422-cable limiter movable clamp; 2422-1-cable entry;

[0068] 243-Export shielding sleeve. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0070] The CN102430207A shallow X-ray treatment system of the related technology includes a complete machine frame, a column is arranged on the complete machine frame, and a catheter support device is connected to the upper end of the column. The catheter support device consists of a cross arm, a balance spring arm, a rotating connecting arm and a vertical arm. The cross arm and the balance spring arm are connected by a rotating connecting arm, the balance spring arm is hinged to the vertical arm, the lower end of the vertical arm is connected to the X-ray tube treatment head device, the upper part of the X-ray tube treatment head device is hinged to the vertical arm through a cantilever, and the X-ray tube treatment head device can rotate 360 ​​degrees around the vertical arm.

[0071] A handle is provided on the upper part of the X-ray tube treatment head device. An X-ray tube head connector is installed in the housing of the X-ray tube treatment head device. A tube sleeve is installed in the X-ray tube head connector. An X-ray tube is installed in the X-ray tube head connector. The rear part of the X-ray tube is covered with a tube sleeve connector to limit the position of the X-ray tube. A downward hole is opened on the outer circumferential surface of the tube sleeve connector. A filter rotating sleeve is loosely sleeved on the tube sleeve connector. The outer circumferential surface of the filter rotating sleeve is opened. The filter rotating sleeve can rotate so that the hole opened by the filter rotating sleeve is opposite to the hole opened by the tube sleeve connector. A beam catcher clamping device is provided below the hole opened by the tube sleeve connector. The beam catcher clamping device is connected to the beam catcher, and the upper end of the beam catcher is directly opposite to the hole opened by the tube sleeve connector. A filter rotating wheel is provided at the rear end of the filter rotating sleeve. The filter rotating wheel is provided with a connecting column. The connecting column extends into the rear end surface of the filter rotating sleeve and is connected to the filter rotating sleeve. The filter rotating wheel is located outside the housing. The rotation of the filter rotating wheel drives the filter rotating sleeve to rotate synchronously.

[0072] The beam catcher clamping device is composed of a beam catcher bracket, a beam catcher pad, a beam catcher support, and a beam catcher holder. The beam catcher bracket, the beam catcher pad, and the beam catcher are overlapped and connected in sequence from top to bottom, and holes are opened in the center corresponding to the holes opened in the pipe sleeve connector. A trapezoidal groove with a smaller bottom and a larger top is opened on the lower end surface of the beam catcher. The beam catcher is inserted into the trapezoidal groove from the rear end of the beam catcher and the rear end is limited by the beam catcher support clamped on the beam catcher.

[0073] The beam splitter bracket is composed of a transverse section and legs symmetrically arranged at both ends of the transverse section. The two legs of the beam splitter bracket clamp the beam splitter holder. Small cylinders symmetrically arranged on the inner sides of the two legs extend into the mounting grooves corresponding to the beam splitter holder to form a hinge. The cross section of the beam splitter bracket blocks the trapezoidal groove opening of the beam splitter holder. A return spring is installed in the middle of the cross section of the beam splitter bracket. One end of the return spring is located in the circular hole opened in the middle of the cross section of the beam splitter bracket, and the other end of the return spring rests on the beam splitter bracket.

[0074] In view of the above-mentioned related technologies, the embodiments of the present application provide a superficial X-ray treatment system for superficial irradiation treatment of primary epithelial cell carcinoma of the skin and keloids. The system is provided with a superficial X-ray treatment head that integrates a multi-mode filter component 230, beam limiters of different specifications, a rotating bayonet flange component 240 and a laser indication component. It can not only enrich the functional types of the treatment head, but also lock the treatment area more accurately and quickly, adjust the treatment dose more flexibly and efficiently, and is also conducive to the automation and intelligence of process control. The system also provides a treatment head support component including a lifting column and an operating arm. The operating arm of a cantilever or a collaborative robot arm is combined with a lifting column to meet comprehensive and multi-dimensional flexible treatment, while helping to simplify the structure.

[0075] First embodiment

[0076] like Figure 1-Figure 14 As shown, a shallow X-ray therapy system provided by the first embodiment of the present application includes a movable host 100 and a shallow X-ray therapy head 200. The shallow X-ray therapy head 200 is installed on the top of the movable host 100 through a therapy head support assembly 300. The therapy head support assembly 300 includes a lifting column 310 and an operating arm 320 connected to each other, wherein the operating arm 320 is a cantilever 321; further, the cantilever 321 can be formed by a straight arm, an adjustment arm and a support arm being movably connected in sequence, the straight arm is used to connect the lifting column 310, and the support arm is used to connect the shallow X-ray therapy head 200. The cantilever 321 has a bearing capacity of not less than 10KG and an arm span of 1400mm. To ensure safety, a support rod of the cantilever 321 can be further configured and can be self-locking.

[0077] The superficial X-ray treatment head 200 comprises a treatment head housing 210 and an X-ray tube 220 disposed inside the treatment head housing 210. The X-ray tube 220 has a beam outlet, and the beam outlet is aligned with a first ray outlet opened in the treatment head housing 210.

[0078] The X-ray tube 220 is rotatably sleeved with a multi-mode filter assembly 230, and the multi-mode filter assembly 230 is provided with a ray shielding plate 234 and a plurality of ray filter plates 235 arranged in an annular direction, and the ray shielding plate 234 and the ray filter plates 235 are configured to be placed between the beam outlet and the first ray outlet.

[0079] The treatment head housing 210 can be detachably connected to beam limiters 226 of different specifications by rotating the bayonet flange assembly 240 at the first ray exit.

[0080] In the first embodiment of the utility model, the treatment head shell 210 includes an integrally connected ray tube shell 211 and a high-voltage cable repair shell 212, the ray tube shell 211 is used to accommodate the X-ray tube 220 and the multi-mode filter assembly 230, and the high-voltage cable repair shell 212 is used to accommodate a partial segment of the ray tube high-voltage line 222 of the X-ray tube 220 and the laser indication assembly 260.

[0081] During specific implementation, the ray tube housing 211 can be formed by splicing a treatment head upper housing 2111 and a treatment head lower housing 2112. At the same time, a maintenance window can be opened on the treatment head upper housing 2111 and a treatment head maintenance cover 2111-1 can be installed. The maintenance window is set corresponding to the position of the main control board. The high-voltage cable maintenance housing 212 can be formed by splicing a high-voltage cable maintenance upper cover 2121 and a high-voltage cable maintenance lower cover 2122. In order to more reasonably and compactly arrange various circuit boards and functional buttons, such as key panels, light panels, main control panels and treatment head buttons, a circuit board skeleton can also be set between the treatment head upper housing 2111 and the ray tube jacket 221.

[0082] In a more specific implementation, the main body of the X-ray tube 220 is installed in the tube housing 211, and the high-voltage cable 222 and cooling water pipe 225 of the X-ray tube 220 are centrally installed in the high-voltage cable maintenance housing 212. This modular layout is more conducive to the disassembly and maintenance of the product. Furthermore, the high-voltage cable 222 of the X-ray tube can be connected to the tube flange fixing seat 224 through the high-voltage cable fixing flange 223, and then fixed to the end of the tube housing 211 through the tube flange fixing seat 224.

[0083] In some possible implementations of the first embodiment, a connecting bracket 250 with a locking assembly 251 is provided on the outside of the treatment head shell 210. The treatment head shell 210 can be rotated at a preset angle relative to the connecting bracket 250 and fixed by the locking assembly 251. At the same time, the connecting bracket 250 is rotatably connected to the cantilever 321.

[0084] The connection bracket 250 is configured to be rotatably connected to the end of the cantilever 321, so as to realize the relative rotation of the shallow X-ray treatment head 200 as a whole and the cantilever 321 in the horizontal direction. The connection bracket 250 enables the treatment head shell 210 to rotate around the axis of the shallow X-ray treatment head 200, and the rotation action is intended to change the position of the beam limiter 226 disposed in the treatment head shell 210 in the longitudinal space, so as to achieve the purpose of disassembling and assembling the beam limiter 226 with a large weight at an angle for convenient operation.

[0085] In some possible implementations of the first embodiment, the connecting bracket 250 includes a treatment head rotating fixed block 252 detachably connected to the outside of the treatment head shell 210; the treatment head rotating fixed block 252 and the treatment head shell 210 can be relatively rotated 180° through the treatment head rotating sleeve 253 and the limiting structure 254, so that the beam outlet of the X-ray tube 220 can be switched between vertically downward and vertically upward. More specifically, the treatment head rotating fixed block 252 includes a treatment head rotating upper fixed block 2521 and a treatment head rotating lower fixed block 2522 that are detachably spliced ​​together, and the treatment head rotating shaft sleeve 253 includes a treatment head rotating upper shaft sleeve 2531 and a treatment head rotating lower shaft sleeve 2532 that are detachably spliced ​​together, and the treatment head rotating upper shaft sleeve 2531 and the treatment head rotating lower shaft sleeve 2532 are respectively installed on the inner walls of the treatment head rotating upper fixed block 2521 and the treatment head rotating lower fixed block 2522, and the treatment head shell is arranged between the treatment head rotating upper shaft sleeve 2531 and the treatment head rotating lower shaft sleeve 2532 and can rotate relatively under the action of external force.

[0086] When operating the treatment head shell 210 and positioning the beam outlet of the X-ray tube 220 vertically upward, the beam limiter 226 can be installed to the treatment head shell 210 or removed from the treatment head shell 210; when operating the treatment head shell 210 and positioning the beam outlet of the X-ray tube 220 vertically downward, it serves as the normal use position of the beam limiter 226.

[0087] In some possible implementations of the first embodiment, the limiting structure 254 includes a non-closed annular groove 2541 opened on the outer periphery of the treatment head shell 210 and a protrusion 2543 arranged on the treatment head rotation fixing block and extending into the treatment head rotation sleeve 253, and the protrusion 2543 is slidably fitted in the closed annular groove and is limited by the two end portions of the non-closed annular groove 2541.

[0088] In specific implementation, a bidirectional transition groove 2542 is provided in the middle of the closed annular groove, and the bidirectional transition groove 2542 can cooperate with the convex portion 2543 to temporarily position it there, so as to maintain the above-mentioned vertical downward and vertical upward postures. More specifically, two groups of convex portions 2543 are symmetrically arranged at both ends of the rotating lower shaft sleeve 2532 of the treatment head, and the two groups of convex portions 2543 form an angle of 180°. In the vertical downward posture, the two groups of convex portions 2543 are respectively matched with one closed end of the non-closed annular groove 2541 and the bidirectional transition groove 2542. In the vertical downward posture, the two groups of convex portions 2543 are respectively matched with the bidirectional transition groove 2542 and the other closed end of the non-closed annular groove 2541. The switching between the two posture positions is completed by the external force applied during operation.

[0089] In some possible implementations of the first embodiment, the locking assembly 251 includes a slider 2511, a friction plate 2512 and a hand-tightening knob 2513. The slider 2511 is disposed in the treatment head rotating fixed block 252 and is configured to be able to extend and retract along the radial direction of the treatment head rotating sleeve 253. The front end of the slider 2511 is fixedly connected to the friction plate 2512 and can extend into the treatment head rotating sleeve 253 to act on the treatment head housing 210; the hand-tightening knob 2513 adopts conical surface matching and spiral matching with the slider 2511 and the treatment head rotating fixed block 252 along its center line.

[0090] The spiral cooperation between the hand knob 2513 and the treatment head rotating fixed block 252 enables the hand knob 2513 to move up and down in the vertical direction and keep the position fixed. At the same time, the hand knob 2513 cooperates with the conical surface of the slider 2511, and the slider 2511 is linked to extend and retract along the radial direction of the treatment head rotating sleeve 253, thereby achieving the purpose of operating the hand knob 2513 to control the displacement of the slider 2511, and then completing the locking or releasing of the treatment head rotating sleeve 253 by the slider 2511 provided with the friction plate 2512.

[0091] Second embodiment

[0092] like Figure 15-Figure 25 As shown, a second embodiment of the present application provides a shallow X-ray treatment system, comprising a movable host 100 and a shallow X-ray treatment head 200, wherein the shallow X-ray treatment head 200 is mounted on the top of the movable host 100 through a treatment head support assembly 300, and the treatment head support assembly 300 comprises a lifting column 310 and an operating arm 320 connected thereto, wherein the operating arm 320 is a collaborative robot arm 322;

[0093] The superficial X-ray treatment head 200 comprises a treatment head housing 210 and an X-ray tube 220 disposed inside the treatment head housing 210. The X-ray tube 220 has a beam outlet, and the beam outlet is aligned with a first ray outlet opened in the treatment head housing 210.

[0094] The X-ray tube 220 is rotatably sleeved with a multi-mode filter assembly 230, and the multi-mode filter assembly 230 is provided with a ray shielding plate 234 and a plurality of ray filter plates 235 arranged in an annular direction, and the ray shielding plate 234 and the ray filter plates 235 are configured to be placed between the beam outlet and the first ray outlet.

[0095] The treatment head housing 210 can be detachably connected to beam limiters of different specifications by rotating the bayonet flange assembly 240 at the first ray outlet.

[0096] In some possible implementations of the second embodiment, refer to Fig.16The collaborative robot arm 322 is mounted to the treatment head housing 210 through a six-dimensional force sensor 3221, and a treatment head handle 3222 is also provided on the treatment head housing. Fig.23 The six-dimensional force sensor 3221 and the treatment head handle 3222 can be fixedly connected to the upper and lower extensions of the ray tube housing 211 respectively.

[0097] The collaborative robot arm 322 can adopt 6-axis degrees of freedom and bear a load of 10KG. The end can achieve torque control through the six-dimensional force sensor 3221 and assist dragging based on the treatment head handle 3222.

[0098] In the second embodiment of the present utility model, refer to Figure 16-18 The treatment head shell 210 also includes an integrally connected ray tube shell 211 and a high-voltage cable repair shell 212. The ray tube shell 211 is used to accommodate the X-ray tube 220 and the multi-mode filter assembly 230, and the high-voltage cable repair shell 212 is used to accommodate a partial segment of the ray tube high-voltage line 222 of the X-ray tube 220 and a laser indication assembly 260.

[0099] When implementing it, refer to Figure 19-20 The ray tube housing 211 can be formed by splicing a treatment head front housing 2111 and a treatment head rear housing 2112. At the same time, the ray tube housing 211 can have a maintenance window and install a treatment head maintenance cover 2111-1, and the maintenance window is set corresponding to the position of the main control board; the high-voltage cable maintenance housing 212 can be spliced ​​by a high-voltage cable maintenance front cover 2121 and a high-voltage cable maintenance rear cover 2122; in order to more reasonably and compactly layout various circuit boards and function buttons, such as key panels, light panels, main control panels and treatment head buttons, a circuit board skeleton can also be set between the ray tube housing 211 and the ray tube jacket 221.

[0100] In a more specific implementation, the main body of the X-ray tube 220 is installed in the tube housing 211, and the high-voltage cable 222 and cooling water pipe 225 of the X-ray tube 220 are centrally installed in the high-voltage cable maintenance housing 212. This modular layout is more conducive to the disassembly and maintenance of the product. Furthermore, the high-voltage cable 222 of the X-ray tube can be connected to the tube flange fixing seat 224 through the high-voltage cable fixing flange 223, and then fixed to the end of the tube housing 211 through the tube flange fixing seat 224.

[0101] First and second embodiments

[0102] like Figure 14-Figure 31As shown, in the first embodiment of the utility model and the second embodiment of the utility model, the shallow X-ray treatment head 200 also includes a laser indication component 260 arranged on the treatment head shell 210, and the laser indication component 260 is used to emit laser rays aimed at the ray output port of the beam limiter, and the laser rays intersect with the X-rays coming out of the beam limiter to form a treatment center point.

[0103] The setting of the laser indication component 260 makes the treatment center point visualized, and can use this as a reference to further accurately locate the skin affected area with irregular contours, and fully surround the skin affected area with the beam output port of the beam limiter at the fastest speed, ensuring a better treatment effect. This has significant advantages over the X-ray tube 220 treatment head device of the CN102430207A shallow X-ray treatment system in the prior art, which not only further enriches the functional types of the treatment head, but also locks the treatment area more accurately and quickly.

[0104] In some further possible implementations, the laser indication assembly 260 includes a distance detection bracket 261 and at least one laser emitting component 262 mounted on the distance detection bracket 261, and the distance detection bracket 261 is used to connect to the treatment head shell 210; each laser emitting component 262 is arranged at a preset inclination angle on the distance detection bracket 261, and the preset inclination angle is adapted to the total length of the beam limiter.

[0105] For example, please refer to Fig.10 , 24 As shown, the laser emitting component 262 is two laser lamp heads, and the distance detection fixing frame 261 has two mounting columns with different inclination angles. The first mounting column is provided with a first laser channel, and the first laser lamp head is installed at one end of the first laser channel. The second end of the first laser channel faces the beam limiter. The first laser ray emitted by the first laser lamp head intersects with the X-ray to form a first treatment center point, and the first treatment center point is located at the ray exit port position of the first total length beam limiter. Similarly, the second laser head is arranged at one end of the second laser channel of the second mounting column, and the second laser ray intersects with the X-ray to form a second treatment center point, and the second treatment center point is located at the ray exit port position of the second total length beam limiter.

[0106] In the first embodiment of the utility model and the second embodiment of the utility model, as Figure 3 As shown, the rotating bayonet flange assembly 240 includes a beam limiter fixed clamp 241 and a beam limiter movable clamp 242, the beam limiter fixed clamp 241 is fixedly connected to the treatment head housing 210, and the beam limiter movable clamp 242 is elastically connected to the beam limiter fixed clamp 241 and can be relatively coaxially rotated by a predetermined distance;

[0107] The fixed clamp 241 of the limiter and the movable clamp 242 of the limiter are respectively provided with a card interface 2411-1 cooperating with the limiter and a card entrance 2422-1 corresponding to the card interface 2411-1; the movable clamp limit plate 2421 of the limiter is configured to reduce the overlapping area between the card interface 2411-1 and the card entrance 2422-1 to zero by twisting.

[0108] For example, please refer to Figure 29-32 As shown, the beam limiter fixed clamp 241 adopts a beam limiter fixed bayonet 2411, and the beam limiter movable clamp 242 includes a beam limiter movable bayonet limiting plate 2421 and a beam limiter movable bayonet 2422. The beam limiter movable bayonet limiting plate 2421, the beam limiter movable bayonet 2422 and the beam limiter fixed bayonet 2411 are stacked in sequence from top to bottom, and the bayonet at the center of the three is fixedly connected with an outlet shielding sleeve 243 connected to the beam outlet; the beam limiter movable bayonet limiting plate 2421 is connected to the beam limiter fixed bayonet 2411 as a whole, and the beam limiter fixed bayonet 2411 is fixedly connected to the treatment head housing 210;

[0109] The fixed bayonet 2411 of the limiter is provided with a card interface 2411-1 consistent with the appearance of the claw, and the movable bayonet 2422 of the limiter is provided with a card entrance 2422-1 corresponding to the card interface 2411-1, and the shape of the card entrance 2422-1 is also consistent with the appearance of the claw; the movable bayonet 2422 of the limiter is elastically connected to the fixed bayonet 2411 of the limiter and can rotate coaxially relative to a predetermined distance; the movable bayonet 2422 of the limiter is configured to reduce the overlapping area between the card interface 2411-1 and the card entrance 2422-1 until it is zero by twisting. The card interface 2411-1 and the card entrance 2422-1 partially overlap in static state, and the claw is locked in the card interface 2411-1. The movable bayonet 2422 of the limiter is twisted to make the card interface 2411-1 and the card entrance 2422-1 completely overlap and align, and the claw can move freely in or out of the card interface 2411-1.

[0110] More specifically, see Fig.30 The connecting part of the movable bayonet 2422 of the limiter and the limit plate 2421 of the movable bayonet of the limiter can constitute a guide column, and the guide column is slidably matched with the arc hole set on the fixed bayonet 2411 of the limiter; a reset spring is connected between the fixed bayonet 2411 of the limiter and the limit plate 2421 of the movable bayonet of the limiter. After twisting the movable bayonet 2422 of the limiter, the guide column moves along the arc hole to one end thereof, and the card entrance 2422-1 gradually overlaps with the card interface 2411-1 until the claw can be accommodated; after releasing the movable bayonet 2422 of the limiter, under the action of the reset spring, the guide column moves in the opposite direction along the arc hole to the other end thereof, and the card entrance 2422-1 partially overlaps with the card interface 2411-1 to lock the claw.

[0111] Compared with the beam limiter clamping device of the shallow X-ray treatment system of CN102430207A, the rotating bayonet flange assembly 240 of this embodiment belongs to a completely different solution, and has a simpler structure, more convenient operation, and more stable performance. The beam limiter can be quickly disassembled and assembled by twisting or loosening the active bayonet 2422 of the beam limiter. Fig.17 The rotating bayonet flange assembly 240 is also applicable to the tube outlet plug 227 with the same claws. The tube outlet plug 227 or the beam limiter 226 is docked to the beam outlet of the X-ray tube 220 through the outlet shielding sleeve 243, which can receive X-rays more comprehensively, shielding the leakage radiation and ensuring the irradiation dose.

[0112] In some possible implementations of the first embodiment of the utility model and the second embodiment of the utility model, the beam limiter includes a beam limiter body in the shape of a cone or a cylinder, one end of the beam limiter body is provided with a bayonet flange with a claw and an input ray port is formed at the center of the bayonet flange, and the other end of the beam limiter body is provided with a transparent observation window to form an output ray port.

[0113] More specifically, the total length of the beam limiter body, the aperture of the input ray port, and the aperture of the output ray port jointly constrain the specifications of the beam limiter. When in use, cover the affected part of the skin with the transparent observation window, observe the position of the treatment center point on the affected part of the skin, and adjust the treatment center point to be concentrated near the center of the affected part of the skin by moving the beam limiter, so that the X-rays can be accurately positioned on the affected part of the skin to optimize the therapeutic effect.

[0114] In some possible implementations of the first embodiment of the utility model and the second embodiment of the utility model, the beam limiter body and the bayonet flange are both made of lead, and the surfaces of both are provided with a nickel plating layer; the transparent observation window is made of acrylic, and the laser beam is aligned with the transparent observation window.

[0115] The lead-made beam limiter body and bayonet flange are mainly used to prevent X-ray leakage, and the nickel-plated layer can further improve the surface aesthetics, hardness and wear resistance.

[0116] In the first embodiment and the second embodiment of the utility model, the multi-mode filter assembly 230 includes a rotating bracket 231, a driving motor 236, a motor driving plate 237 and a limit switch 238. The X-ray tube 220 is installed inside the treatment head housing 210 through a tube jacket 221. The tube jacket 221 is provided with a second ray outlet aligned with the beam outlet. The rotating bracket 231 is rotatably sleeved on the outside of the tube jacket 221 and covers the second ray outlet.

[0117] The rotating bracket 231 is circumferentially arranged with a plurality of openings 231-1 corresponding to the second ray outlet, and a ray shielding plate 234 and a plurality of ray filter plates 235 are fixed one by one to each opening 231-1 through a filter plate sleeve 233; the rotating bracket 231 is configured to be able to stop rotating when one of the ray shielding plate 234 and the ray filter plate 235 is aligned with the second ray outlet.

[0118] In some possible implementations of the first embodiment of the utility model and the second embodiment of the utility model, the radiation shielding plate 234 is a lead baffle, and the multiple radiation filtering plates 235 of different thicknesses are filtering aluminum plates with thicknesses of 0.45 mm, 0.75 mm and 1.15 mm respectively.

[0119] During assembly, the radiation shielding plate 234 and the three filter aluminum plates are fixed to the inside of the rotating bracket 231 from both ends using the front filter plate sleeve 2331 and the rear filter plate sleeve 2332. Two rotating bearings 232 are also installed in the rotating bracket 231. The two rotating bearings 232 are respectively arranged on the outside of the front filter plate sleeve 2331 and the rear filter plate sleeve 2332, and are limited by the ring groove structure and the bearing positioning ring 2321 respectively.

[0120] The driving motor 236 is connected to the X-ray tube housing 221 and is in transmission connection with a motor driving plate 237 fixedly connected to the end of the rotating bracket 231; the motor driving plate 237 is provided with a plurality of collision members 2371 corresponding to a radiation shielding plate 234 and a plurality of radiation filtering plates 235 one by one, and the collision member 2371 is used to trigger a limit switch 238 fixed to the treatment head housing 210, and the limit switch 238 is control-connected to the driving motor 236.

[0121] When in use, the rotating bracket 231 is driven by the driving motor 236 to rotate relative to the ray tube jacket 221, that is, different holes 231-1 are aligned with the second ray outlet respectively, so that a ray shielding plate 234 and a plurality of ray filter plates 235 of different thicknesses are connected to the beam outlet in turn, and the driving motor 236 is associated with the collision member 2371 and the limit switch 238, and stops at each hole 231-1 position, and finally realizes multi-mode switching. More specifically, the driving motor 236 adopts a stepping motor, and each time the stepping motor is stopped, the stepping motor is controlled to position the ray shielding plate 234 at the second ray outlet as the initial position, and each time the limit switch signal is detected at this time when the machine is turned on to confirm whether it has returned to the position.

[0122] In this embodiment, compared with the filter rotating sleeve in the prior art CN102430207A shallow X-ray treatment system, the multi-mode filtering component 230 firstly adopts a different structural scheme, and secondly can achieve a higher degree of automatic and intelligent switching of filtering effects based on the regulation of the drive motor 236, thereby realizing more flexible and efficient adjustment of the treatment dose, as well as a more automated and intelligent control process.

[0123] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0124] In the description of the present application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0125] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can make the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A shallow X-ray treatment system, characterized in that: It comprises a movable mainframe and a shallow X-ray treatment head, wherein the shallow X-ray treatment head is mounted on the top of the movable mainframe through a treatment head support assembly, wherein the treatment head support assembly comprises a lifting column and an operating arm connected thereto, wherein the operating arm is a cantilever or a collaborative robot arm; The shallow layer X-ray treatment head comprises a treatment head shell and an X-ray tube arranged inside the treatment head shell, wherein the X-ray tube has a beam outlet, and the beam outlet is aligned with a first ray outlet opened in the treatment head shell; A multi-mode filter assembly is rotatably mounted on the outside of the X-ray tube, and the multi-mode filter assembly is provided with a ray shielding plate and a plurality of ray filtering plates arranged in an annular direction, and the ray shielding plate and the ray filtering plate are configured to be placed between the beam outlet and the first ray outlet at one of the two. The treatment head housing is detachably connected to beam limiters of different specifications at the first ray outlet by rotating the bayonet flange assembly.

2. A shallow X-ray treatment system according to claim 1, characterized in that: When the operating arm is a cantilever, a connecting bracket with a locking assembly is provided on the outside of the treatment head shell. The treatment head shell can be rotated at a preset angle relative to the connecting bracket and fixed by the locking assembly. At the same time, the connecting bracket is rotatably connected to the cantilever.

3. A shallow X-ray treatment system according to claim 2, characterized in that: The connecting bracket includes a treatment head rotating fixed block detachably connected to the outside of the treatment head shell; the treatment head rotating fixed block and the treatment head shell can be relatively rotated 180° through the treatment head rotating sleeve and the limiting structure, so that the beam outlet of the X-ray tube can be switched between vertically downward and vertically upward.

4. A shallow layer X-ray treatment system according to claim 3, characterized in that: The limiting structure includes a non-closed annular groove opened on the outer periphery of the treatment head shell and a convex portion arranged on the treatment head rotation fixing block and extending into the treatment head rotation sleeve. The convex portion is slidably fitted in the closed annular groove and is limited by the two end portions of the non-closed annular groove.

5. A shallow layer X-ray treatment system according to claim 3, characterized in that: The locking assembly includes a slider, a friction plate and a hand-tightening knob. The slider is arranged in the rotating fixed block of the treatment head and is configured to be able to extend and retract along the radial direction of the rotating sleeve of the treatment head. The front end of the slider is fixedly connected to the friction plate and can extend into the interior of the rotating sleeve of the treatment head to act on the treatment head shell; the hand-tightening knob adopts conical surface matching and spiral matching with the slider and the rotating fixed block of the treatment head along its center line.

6. A shallow layer X-ray treatment system according to claim 1, characterized in that: When the operating arm is a collaborative robot arm, the collaborative robot arm is installed to the treatment head shell through a six-dimensional force sensor, and a treatment head handle is also provided on the treatment head shell.

7. A shallow layer X-ray treatment system according to any one of claims 1 to 6, characterized in that: The superficial X-ray treatment head also includes a laser indication component arranged on the treatment head shell, and the laser indication component is used to emit laser rays aimed at the ray output port of the beam limiter. The laser rays intersect with the X-rays coming out of the beam limiter to form a treatment center point.

8. A shallow layer X-ray treatment system according to any one of claims 1 to 6, characterized in that: The rotating bayonet flange assembly comprises a beam limiter fixed clamp and a beam limiter movable clamp, the beam limiter fixed clamp is fixedly connected to the treatment head housing, and the beam limiter movable clamp is elastically connected to the beam limiter fixed clamp and can coaxially rotate relative to a predetermined distance; The fixed clamp of the limiter and the movable clamp of the limiter are respectively provided with a card interface cooperating with the limiter and a card entrance corresponding to the card interface; the movable clamp limit plate of the limiter is configured to reduce the overlapping area between the card interface and the card entrance to zero by twisting.

9. A shallow layer X-ray treatment system according to any one of claims 1 to 6, characterized in that: The multi-mode filter assembly includes a rotating bracket; the X-ray tube is installed inside the treatment head housing through a tube jacket, a second ray outlet aligned with the beam outlet is provided on the tube jacket, and the rotating bracket is rotatably sleeved on the outside of the tube jacket and covers the second ray outlet; The rotating bracket is circumferentially arranged with a plurality of apertures corresponding to the second ray outlet, and a ray shielding plate and a plurality of ray filtering plates are fixed to each of the apertures one by one; the rotating bracket is configured to stop rotating when one of the ray shielding plate and the ray filtering plate is aligned with the second ray outlet.

10. A shallow layer X-ray treatment system according to claim 9, characterized in that: The multi-mode filtration assembly also includes a drive motor, a motor drive board and a limit switch; The driving motor is connected to the outer sleeve of the ray tube and is in transmission connection with a motor driving plate fixedly connected to the end of the rotating bracket; the motor driving plate is provided with a plurality of collision members corresponding to a ray shielding plate and a plurality of ray filtering plates one by one, and the collision members are used to trigger a limit switch fixed to the housing of the treatment head, and the limit switch is control-connected to the driving motor.

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