A whole body irradiation fixture

Abstract

The utility model relates to the field of medical apparatus and instruments, especially a whole body irradiation fixing device, including fixed plate, neck chest fixing part, abdominal and pelvic fixing part and tractor, the length direction of fixed plate installs neck chest fixing part, abdominal and pelvic fixing part and tractor in proper order, still including wrist placing part and leg fixing part, two wrist placing parts are arranged, two wrist placing parts are separately arranged on the both sides of fixed plate width direction, and two wrist placing parts all slide and connect fixed plate, and the sliding direction is the length direction of fixed plate, first locking part is provided on wrist placing part, leg fixing part is installed on fixed plate, and is located between tractor and abdominal and pelvic fixing part, this device can better fix the leg of patient, and can support the wrist of patient, further reduces the error that causes when the hand or leg deviates during the position.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a whole-body irradiation fixation device. Background Technology

[0002] Total body irradiation (TBI) is commonly used as a pretreatment for hematopoietic stem cell transplantation in patients with hematologic disorders such as leukemia and severe aplastic anemia. Its main functions include killing residual tumor cells, suppressing the body's immune response, and emptying bone marrow space for hematopoietic stem cell transplantation. Patients who have undergone TBI pretreatment have higher cure rates and lower relapse rates. During TBI, the accuracy of the repetition between the patient's actual location and the location simulated on CT scans is crucial, as it directly affects the patient's treatment outcome.

[0003] Chinese utility model patent application number CN202220331063.5 discloses a fixed frame suitable for whole-body irradiation. The fixed frame provided by this utility model can effectively reduce the error caused by the patient's pelvis or legs shifting during the positioning process, improve the reliability of the frame in fixing the patient's pelvis and legs, thereby improving the accuracy of whole-body irradiation treatment and helping patients obtain better treatment results during whole-body irradiation treatment.

[0004] However, this patent only fixes the patient's legs in a certain position, allowing them to still rotate freely within that position during whole-body irradiation therapy. Furthermore, when the traction device pulls the patient's arms, the wrists are suspended without a fixed position, easily causing hand fatigue and making it difficult to keep the arms in the same position during the entire treatment. Due to these drawbacks, using this invention may reduce the accuracy of the overlap between the actual positions of the patient's legs and arms and the CT simulation, thus affecting the treatment outcome. Utility Model Content

[0005] In view of the above, it is necessary to provide a whole-body irradiation fixation device that can better fix the patient's legs and support the patient's wrists, further reducing errors caused by hand or leg displacement during positioning.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a whole-body irradiation fixation device, comprising a fixation plate, a cervical-chest fixation component, an abdominal-pelvic fixation component, and a traction device. The cervical-chest fixation component, the abdominal-pelvic fixation component, and the traction device are sequentially installed along the length of the fixation plate. It also includes two wrist rests and a leg fixation component. The two wrist rests are respectively disposed on both sides of the fixation plate along its width, and both wrist rests are slidably connected to the fixation plate in the length direction of the fixation plate. Each wrist rest is provided with a first locking element to prevent it from sliding relative to the fixation plate. The leg fixation component is installed on the fixation plate and located between the traction device and the abdominal-pelvic fixation component.

[0007] Furthermore, the fixed plate has two first sliding grooves on its surface, which are located on both sides of the fixed plate in the width direction. Each first sliding groove is opened along the length direction of the fixed plate, and each first sliding groove has a through groove on its wall, which extends to the side wall of the fixed plate. The wrist rest is slidably connected to the fixed plate by means of a slider slidingly embedded in the first sliding groove. The first locking member includes a first locking rod and a first locking nut. The first locking rod movably passes through the through groove, with one end fixedly connected to the slider and the other end located on the outside of the fixed plate. The first locking nut is threaded onto the other end.

[0008] Furthermore, the traction device mainly consists of a traction plate, a traction rope, and a handheld component. One end of the traction rope is connected to the traction plate, and the other end is equipped with the handheld component. The handheld component is connected to the end of the wrist rest facing the traction plate and protrudes from the top of the wrist rest.

[0009] Furthermore, the wrist rest has a raised wrist support at the top, and guardrails are provided on both sides of the wrist support, which are the two sides in the width direction of the fixing plate.

[0010] Furthermore, the leg fixing component includes a partition plate, two movable plates, and a leg fixing membrane; both the partition plate and the movable plates are mounted on the fixed plate, and the surfaces of both the partition plate and the movable plates are perpendicular to the surface of the fixed plate; the partition plate and the two movable plates are spaced apart, with the partition plate located between the two movable plates, and the two movable plates are slidably connected to the fixed plate in the width direction of the fixed plate; both the partition plate and the movable plates have channels for the leg fixing membrane to pass through, and the middle part of the leg fixing membrane passes through the partition plate and the movable plates through the channels, with both ends of the leg fixing membrane located outside the two movable plates, and these two ends are detachably connected to each other; when the two ends of the leg fixing membrane are connected, the leg fixing membrane wraps around the outside of the lower leg placed between each movable plate and the partition plate, and the two movable plates, under the action of the leg fixing membrane, clamp and fix the lower leg and foot with the partition plate.

[0011] Furthermore, one end of the leg fixing film is provided with an annular hole for the other end of the leg fixing film to pass through, and the other end of the leg fixing film is detachably connected to one side of the fixing plate, which is the side where the movable plate corresponding to the other end of the leg fixing film is located.

[0012] Furthermore, the traction device mainly consists of a traction plate and a traction rope, with the traction rope connected to the traction plate; one end of the partition plate opposite to the abdominal and pelvic fixation member is connected to the traction plate, and one end of the movable plate opposite to the abdominal and pelvic fixation member is also connected to the traction plate; the movable plate has a second locking member for preventing the movable plate from sliding relative to the traction plate.

[0013] Furthermore, the traction plate is provided with two second sliding grooves, which are opened along the width direction of the traction plate and are respectively located on both sides of the partition plate; the second locking member includes a second locking rod and a second locking nut, one end of the second locking rod is fixedly connected to the movable plate, and the other end movably passes through the second sliding groove and is located on the back of the traction plate, and the other end is threadedly connected to the second locking nut; a guide rod is provided on the movable plate, one end of the guide rod is fixedly installed on the movable plate, and the other end is slidably connected to the traction plate.

[0014] Furthermore, each of the wrist rests is matched with a scale line, which is set along the sliding direction of the wrist rest and covers the entire sliding trajectory line of the wrist rest.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model provides wrist support for the patient by setting a wrist rest. The wrist rest has a raised wrist support at the top, so that when the patient holds the wrist rest, the suspended part of the wrist rests on the wrist support, which can reduce the patient's hand fatigue. At the same time, the wrist rest is slidably mounted on the fixed plate. When the patient pulls the traction rope, the wrist rest can move along the length of the fixed plate, which can support the patient's wrist at different positions. In addition, the wrist rest is provided with a first locking member, which can lock the wrist rest at the position where the patient's hand stops, making it easier to find the placement position of the patient's hand during positioning and reducing the deviation of the hand position.

[0017] 2. The leg fixation device of this utility model, by setting a movable plate and a partition plate, allows the movable plate to clamp the patient's leg together with the partition plate under the fixing effect of the leg fixation film, which can reduce the patient's leg from turning freely to a certain extent; in addition, the second locking device enhances the clamping effect of the movable plate and the partition plate, further reducing the patient's leg from turning freely. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the present invention.

[0019] Figure 2 yes Figure 1 A partial view.

[0020] Figure 3 yes Figure 1 Another partial view in the image.

[0021] Figure 4 This is a side view of the present invention.

[0022] Figure 5 This is a diagram showing the lower leg being placed on the leg fixation device.

[0023] Figure 6 This is a schematic diagram showing how two movable plates, under the action of the leg-fixing membrane, are clamped and fixed to the lower leg and foot by the spacer.

[0024] Figure 7 This is the front view of this utility model.

[0025] Figure 8 This is a top view of the present invention.

[0026] Figure 9 This is a three-dimensional schematic diagram of Embodiment 1 of this utility model from another angle.

[0027] Figure 10 This is a three-dimensional schematic diagram of Embodiment 2 of this utility model.

[0028] Explanation of main component symbols

[0029] In the diagram: 1-fixed plate, 11-first sliding groove, 111-through groove, 12-scale line.

[0030] 2-Neck and chest fixation device, 3-Abdominal and pelvic fixation device,

[0031] 4-Traction device, 41-Traction plate, 411-Second sliding groove, 42-Traction rope, 43-Handheld component,

[0032] 5-Wrist rest, 51-First locking element, 511-First locking rod, 512-First locking nut, 52-Wrist support, 521-Guardrail

[0033] 61-Spacing plate, 62-Modular plate, 63-Leg fixing film, 631-Ring hole, 64-Channel, 65-Hook and loop fastener, 66-Second locking element, 661-Second locking rod, 662-Second locking nut.

[0034] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0035] Example 1:

[0036] Please see Figure 1-9 In a preferred embodiment of this utility model, a whole-body irradiation fixation device includes a fixation plate 1, a cervical-chest fixation member 2, an abdominal-pelvic fixation member 3, and a traction device 4. The cervical-chest fixation member 2, the abdominal-pelvic fixation member 3, and the traction device 4 are sequentially installed along the length of the fixation plate 1. The cervical-chest fixation member 2, the abdominal-pelvic fixation member 3, and the traction device 4 are all existing technologies, and those skilled in the art can directly adopt the technical solutions in the prior art. Preferably, in this embodiment, the cervical-chest fixation member 2 is a cervical-chest fixation membrane, which is detachably connected to the fixation plate 1 via a connector; the abdominal-pelvic fixation member 3 is an abdominal-pelvic fixation membrane, which is detachably connected to the fixation plate 1 via a connector; the cervical-chest fixation membrane and the abdominal-pelvic fixation membrane are breathable mesh membranes, which are commonly used devices in radiotherapy fixation, and the specific detachable connection method can directly use the connection method of the prior art. The traction device 4 includes a traction plate 41, two traction ropes 42, and two handholds 43. The traction plate 41 is mounted on the fixed plate 1, and its plate surface is perpendicular to the plate surface of the fixed plate 1. The two traction ropes 42 are respectively disposed on both sides of the traction plate 41, which are the two sides of the fixed plate 1 in the width direction. Each traction rope 42 is connected to the traction plate 41 at one end, and the other end is located on the side of the traction plate 41 facing the abdominal and pelvic fixation member 3. The handholds 43 are provided on the other end. The handholds 43 are used to facilitate the patient to grasp and pull the traction rope 42.

[0037] Furthermore, this utility model also includes two wrist rests 5 and a leg fixation member; the wrist rests 5 support the wrists, preventing the wrists from dangling when the traction device 4 pulls the patient's arms; the leg fixation member reduces the likelihood of the patient's legs rotating freely to a certain extent.

[0038] Two wrist rests 5 are respectively disposed on both sides of the fixed plate 1 in the width direction, which can simultaneously support the patient's two wrists; and both wrist rests 5 are slidably connected to the fixed plate 1, with the sliding direction being the length direction of the fixed plate 1; each wrist rest 5 is provided with a first locking member 51 to prevent the wrist rest 5 from sliding relative to the fixed plate 1; when the patient pulls the traction rope 42, the wrist rest 5 can move with the patient's wrist under the sliding action relative to the fixed plate 1, and can support the patient's wrist at different positions; at the same time, under the action of the first locking member 51, the wrist rest 5 can be locked at the position where the patient's hand stops, which is convenient for finding the placement position of the patient's hand during positioning and reduces the deviation of the hand position. Preferably, the hand-held member 43 is connected to the end of the wrist rest 5 facing the traction plate 41 and protrudes from the top of the wrist rest 5; when the patient holds the hand-held member 43, the suspended part of the wrist is placed on the wrist rest 5, which does not require too much adjustment and can reduce the patient's hand fatigue. More preferably, the wrist rest 5 has a raised wrist support 52 at the top, so that when the patient holds the hand rest 43, the suspended part of the wrist is placed on the wrist support 52, which can reduce the patient's hand fatigue; moreover, the wrist support 52 has guardrails 521 on both sides, which are the two sides in the width direction of the fixing plate 1, which can limit the wrist and prevent the wrist from slipping off the wrist rest 5.

[0039] In this embodiment, the wrist rest 5 is slidably connected to the fixing plate 1 in the following manner: two first sliding grooves 11 are provided on the surface of the fixing plate 1, the two first sliding grooves 11 are respectively located on both sides of the width direction of the fixing plate 1, each first sliding groove 11 is provided along the length direction of the fixing plate 1, and each first sliding groove 11 has a through groove 111 on its groove wall, the through groove 111 extending to the side wall of the fixing plate 1; the wrist rest 5 is slidably connected to the fixing plate 1 by means of a slider slidingly embedded in the first sliding groove 11; the first locking member 51 includes a first locking rod 511 and a first locking nut 512, the first locking rod 511 is movably passed through the through groove 111, one end of which is fixedly connected to the slider, and the other end is located on the outside of the fixing plate 1, the other end of which is threadedly connected to the first locking nut 512. When the wrist rest 5 needs to be locked in a certain position, the first locking nut 512 is rotated, causing it to abut against the fixing plate 1 under the action of the threaded connection with the first locking rod 511. The first locking nut 512 and the slider together clamp the groove wall of the first moving groove, preventing the rod body of the first locking rod 511 from sliding along the through groove 111, thereby preventing the slider from sliding in the first sliding groove 11, thus locking the wrist rest 5 in a certain position. In addition, each wrist rest 5 is matched with a scale line 12, which is set along the sliding direction of the wrist rest 5 and covers the entire sliding trajectory line of the wrist rest 5, making it convenient to mark the position of the wrist rest 5. Moreover, numbers or letters or other symbols can be marked next to the scale line 12 as needed for easy recording.

[0040] Furthermore, the leg fixation component is installed on the fixing plate 1 and located between the traction device 4 and the abdominal and pelvic fixation component 3. Preferably, the leg fixation component includes a partition plate 61, two movable plates 62, and a leg fixation membrane 63; wherein, the main material of the leg fixation membrane 63 is the same as that in the prior art, which is also a breathable mesh membrane commonly used in the prior art, but the structure is different; both the partition plate 61 and the movable plates 62 are installed on the fixing plate 1, and the plate surfaces of both the partition plate 61 and the movable plates 62 are perpendicular to the plate surface of the fixing plate 1; the partition plate 61 and the two movable plates 62 are spaced apart, and the partition plate 61 is located between the two movable plates 62, and the two movable plates 62 are slidably connected to the fixing plate 1, with the sliding direction being the width of the fixing plate 1. Direction; both the partition plate 61 and the movable plate 62 are provided with channels 64 for the leg fixing membrane 63 to pass through. The middle part of the leg fixing membrane 63 passes through the partition plate 61 and the movable plate 62 through the channel 64. The two ends of the leg fixing membrane 63 are located on the outside of the two movable plates 62, and the two ends are detachably connected to each other. When the two ends of the leg fixing membrane 63 are connected, the leg fixing membrane 63 wraps around the outside of the lower leg placed between each movable plate 62 and the partition plate 61. Under the action of the leg fixing membrane 63, the two movable plates 62 clamp and fix the lower leg and foot with the partition plate 61. In use, one end of the leg fixation membrane 63 is first inserted sequentially through the channel 64 on one movable plate 62, the partition plate 61, and the other movable plate 62. Then, the patient's two legs are positioned within the space formed by the two movable plates 62 and the partition plate 61, and on the leg fixation membrane 63. Then, the two ends of the leg fixation membrane 63 are tightened. At this time, the two movable plates 62 can be slid towards the partition plate 61, so that the movable plates 62, under the fixing effect of the leg fixation membrane 63, together with the partition plate 61, clamp the patient's legs, connecting the two ends of the leg fixation membrane 63 to each other. This can better fix the patient's legs in the designated position, and at the same time, can reduce the possibility of the patient's legs rotating freely to a certain extent. In this embodiment, the channel 64 on the two movable plates 62 is located at the end away from the fixed plate 1, and the channel 64 on the spacer plate 61 is located at the end close to the fixed plate 1. This arrangement allows the patient's lower leg to be as close as possible to the fixed plate 1 when the patient's leg is fixed, avoiding suspension. More preferably, one end of the leg fixation membrane 63 is provided with an annular hole 631 for the other end of the leg fixation membrane to pass through, and the other end of the leg fixation membrane 63 is detachably connected to one side of the fixed plate 1, which is the side where the movable plate 62 corresponding to the other end of the leg fixation membrane 63 is located.The two ends of the leg fixation film 63 are detachably connected to the fixation plate 1 using the method described above. The length of the leg fixation film 63 can be adjusted according to the thickness of the patient's leg. Detachably connecting the leg fixation film 63 to the fixation plate 1 can reduce the possibility of the two ends of the leg fixation film 63 overlapping and blocking the leg when connected above the leg, which would affect the irradiation effect. Specifically, the leg fixation film 63 can be detachably connected to the fixation plate 1 via Velcro 65.

[0041] Example 2:

[0042] Please refer to the appendix. Figure 10 The difference between this embodiment and Embodiment 1 is only that: in this embodiment, the end of the partition plate 61 facing away from the abdominal and pelvic fixation member 3 is connected to the traction plate 41, and the end of the movable plate 62 facing away from the abdominal and pelvic fixation member 3 is also connected to the traction plate 41; the movable plate 62 has a second locking member 66, and the other structures are the same as in Embodiment 1. In Embodiment 1, the two movable plates 62, under the action of the leg fixation membrane 63, clamp and fix the lower leg and foot with the partition plate 61, which can limit the patient's foot; in this embodiment, through the action of the second locking member 66, the clamping effect of the movable plate 62 and the partition plate 61 is enhanced, further reducing the possibility of the patient's leg rotating freely.

[0043] Preferably, the traction plate 41 is provided with two second sliding grooves 411, which are opened along the width direction of the traction plate 41 and are respectively provided on both sides of the spacer plate 61; the second locking member 66 includes a second locking rod 661 and a second locking nut 662, one end of the second locking rod 661 is fixedly connected to the movable plate 62, and the other end movably passes through the second sliding groove 411 and is located on the back of the traction plate 41, and the second locking nut 662 is threadedly connected to the other end. When it is necessary to lock the movable plate 62 in a certain position, rotate the second locking nut 662 so that it abuts against the traction plate 41 under the action of the threaded connection with the second locking screw. The first nut and the movable plate 62 together clamp the electric traction plate 41, preventing the rod of the second locking rod 661 from sliding along the second sliding groove 411, thereby fixing the movable plate 62 in a certain position. In addition, the movable plate 62 is provided with a guide rod. One end of the guide rod is fixedly installed on the movable plate 62, and the other end is slidably connected to the traction plate 41 to prevent the movable plate 62 from rotating under the action of the second locking rod 661.

[0044] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A whole-body irradiation fixation device, comprising a fixation plate, a cervical-chest fixation component, an abdominal-pelvic fixation component, and a traction device, wherein the cervical-chest fixation component, the abdominal-pelvic fixation component, and the traction device are sequentially installed along the length of the fixation plate; characterized in that: It also includes two wrist rests and a leg fixation member. The two wrist rests are respectively located on both sides of the fixing plate in the width direction, and both wrist rests are slidably connected to the fixing plate in the length direction of the fixing plate. The wrist rests are provided with a first locking member to prevent the wrist rests from sliding relative to the fixing plate. The leg fixation member is installed on the fixing plate and is located between the traction device and the abdominal and pelvic fixation member.

2. The whole-body irradiation fixation device according to claim 1, characterized in that: The fixing plate has two first sliding grooves on its surface, which are located on both sides of the fixing plate in the width direction. Each first sliding groove is opened along the length direction of the fixing plate, and each first sliding groove has a through groove on its wall, which extends to the side wall of the fixing plate. The wrist rest is slidably connected to the fixing plate by means of a slider that is slidably embedded in the first sliding groove. The first locking member includes a first locking rod and a first locking nut. The first locking rod is movably passed through the through groove, with one end fixedly connected to the slider and the other end located on the outside of the fixing plate. The first locking nut is threaded onto the other end.

3. The whole-body irradiation fixation device according to claim 1, characterized in that: The traction device mainly consists of a traction plate, a traction rope, and a handheld component. One end of the traction rope is connected to the traction plate, and the other end is equipped with the handheld component. The handheld component is connected to the end of the wrist rest facing the traction plate and protrudes from the top of the wrist rest.

4. The whole-body irradiation fixation device according to claim 1, characterized in that: The wrist rest has a raised wrist support at the top, and guardrails are provided on both sides of the wrist support, which are the two sides in the width direction of the fixing plate.

5. The whole-body irradiation fixation device according to claim 1, characterized in that: The leg fixing component includes a partition plate, two movable plates, and a leg fixing membrane. Both the partition plate and the movable plates are mounted on the fixed plate, and the surfaces of both are perpendicular to the surface of the fixed plate. The partition plate and the two movable plates are spaced apart, with the partition plate located between the two movable plates. The two movable plates are slidably connected to the fixed plate, and their sliding direction is the width direction of the fixed plate. Each of the partition plate and the movable plates has a channel for the leg fixing membrane to pass through. The middle portion of the leg fixing membrane passes through the partition plate and the movable plates via the channel. Both ends of the leg fixing membrane are located outside the two movable plates, and these two ends are detachably connected to each other. When the two ends of the leg fixing membrane are connected, the leg fixing membrane wraps around the lower leg placed between each movable plate and the partition plate. Under the action of the leg fixing membrane, the two movable plates clamp and fix the lower leg and foot to the partition plate.

6. The whole-body irradiation fixation device according to claim 5, characterized in that: One end of the leg fixing film is provided with an annular hole for the other end of the leg fixing film to pass through. The other end of the leg fixing film is detachably connected to one side of the fixing plate, which is the side where the movable plate corresponding to the other end of the leg fixing film is located.

7. The whole-body irradiation fixation device according to claim 5, characterized in that: The traction device mainly consists of a traction plate and a traction rope, with the traction rope connected to the traction plate. One end of the partition plate facing away from the abdominal and pelvic fixation member is connected to the traction plate, and the other end of the movable plate facing away from the abdominal and pelvic fixation member is also connected to the traction plate. The movable plate has a second locking member to prevent the movable plate from sliding relative to the traction plate.

8. The whole-body irradiation fixation device according to claim 7, characterized in that: The traction plate has two second sliding grooves, which are opened along the width direction of the traction plate and are respectively located on both sides of the partition plate; the second locking member includes a second locking rod and a second locking nut, one end of the second locking rod is fixedly connected to the movable plate, and the other end movably passes through the second sliding groove and is located on the back of the traction plate, and the other end is threadedly connected to the second locking nut; the movable plate is provided with a guide rod, one end of the guide rod is fixedly installed on the movable plate, and the other end is slidably connected to the traction plate.

9. The whole-body irradiation fixation device according to claim 1, characterized in that: Each of the wrist rests is matched with a scale line, which is set along the sliding direction of the wrist rest and covers the entire sliding trajectory line of the wrist rest.

Images