A target organ positioning device for tumor radiotherapy

Abstract

The utility model discloses a target organ positioning device for tumor radiotherapy, including fixed subassembly, the fixed subassembly is used for fixing the heel department or finger of patient, the fixed subassembly is equipped with radio-opaque mark point with target organ contact surface, the fixed subassembly bottom rotatable connection has the adjusting lever, the adjusting lever one end is connected with the clamping seat, the adjusting lever is relative to the telescopic of clamping seat, the clamping seat bottom is equipped with a plurality of press screw, the press screw top end rotatable connection has the pressure plate, the utility model discloses the fixed subassembly shape of specially designed adaptation heel department and finger, and radio-opaque mark point of high accuracy, can realize accurate positioning to target organ in the imageology examination, improve the accuracy of radiotherapy. Adjustable magic paste bandage can firmly link fixed subassembly with heel department or finger, effectively prevent the treatment position deviation caused by the movement of patient in the treatment process.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a target organ positioning device for tumor radiotherapy. Background Technology

[0002] In tumor radiotherapy, precise target organ localization is crucial for ensuring treatment effectiveness and minimizing damage to surrounding healthy tissues. Currently, commonly used clinical methods for target organ localization include imaging techniques such as CT and MRI. However, these traditional methods have several limitations. Firstly, patients need to maintain a specific posture during localization; prolonged stillness can easily lead to patient fatigue, causing slight changes in posture, which may result in localization errors and affect the accuracy of subsequent radiotherapy.

[0003] For tumors in areas such as the heel and fingers, traditional localization methods have many shortcomings due to their unique anatomical structure and mobility. Current common localization methods, such as simple surface markings, are prone to localization deviations due to slight patient movement, thus affecting the accuracy of radiotherapy and potentially preventing the tumor from receiving an adequate dose of radiation while causing unnecessary damage to surrounding healthy tissues. Existing complex localization devices are often designed for larger body parts and are difficult to adapt to small and flexible areas like the heel and fingers, and are also costly and complex to operate. Therefore, developing a precise, convenient, and cost-effective target organ localization device specifically for tumor radiotherapy in the heel and fingers has significant clinical implications. Utility Model Content

[0004] The purpose of this invention is to provide a target organ positioning device for tumor radiotherapy, which aims to improve the problems of existing positioning devices being difficult to adapt to small and flexible parts such as the heel and fingers, and being costly and complicated to operate.

[0005] This utility model is implemented as follows:

[0006] A target organ positioning device for tumor radiotherapy includes a fixation component for fixing a patient's heel or fingers; the surface of the fixation component in contact with the target organ is provided with radioactive opaque markings; an adjusting rod is rotatably connected to the bottom of the fixation component, one end of the adjusting rod is connected to a retaining seat, and the adjusting rod is retractable relative to the retaining seat; the bottom of the retaining seat is provided with multiple clamping screws, and a pressure plate is rotatably connected to the top of the clamping screws.

[0007] Preferably, the fixing component is in the shape of a heel, and the fixing component includes an ankle support and a heel sleeve, which are detachably connected.

[0008] Preferably, the outer surface of the ankle support is provided with adhesive portions near both ends, and the heel sleeve is provided with a first Velcro strap aligned with the adhesive portion, the first Velcro strap being connected to the adhesive portion; the bottom end of the ankle support is provided with a support column, and the support column is provided with two limiting plates, the upper surface of the limiting plates being provided with a top screw near the edge.

[0009] Preferably, the fixing component includes a hand rest and a wrapping fabric, wherein the hand rest is made of a rigid material and the wrapping fabric is made of a soft material, and the wrapping fabric is tied to the upper surface of the hand rest.

[0010] Preferably, the end of the hand support is provided with multiple finger sleeves, and the upper surface of the hand support is provided with an opening aligned with the palm. One end of the wrapping fabric is connected to the opening on the upper surface of the hand support aligned with the palm, and the other end of the wrapping fabric is provided with a second Velcro strap, which is tied to the end of the hand support aligned with the wrist.

[0011] Preferably, the bottom surface of the hand support is provided with a support column, the support column is provided with two limiting plates, and the upper surface edge of the top limiting plate is provided with a top screw.

[0012] Preferably, one end of the adjusting rod is provided with a sleeve hole, the sleeve hole is fitted onto the support column, and the end of the adjusting rod fitted onto the support column is positioned between two limiting plates.

[0013] Preferably, the card holder has a U-shaped structure, and the bottom surface of the card holder is provided with multiple threaded holes. One end of the top of the card holder is provided with a slot, and the adjusting rod is inserted into the inside of the slot. A clamping bolt is provided on the upper surface of the card holder near the fixing component.

[0014] Preferably, the clamping screw is threadedly connected to the threaded hole, the bottom end of the clamping screw is provided with a rotating handle, and the top end of the clamping screw is provided with a connecting shaft.

[0015] Preferably, the bottom surface of the pressure plate is provided with an adapter, the middle of the adapter is provided with a bearing, and the bearing is interference-fitted with the connecting shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This invention, through its specially designed fixing component shape adapted to the heel and fingers, and high-precision radiopaque marking points, enables precise positioning of target organs in imaging examinations, improving the accuracy of radiotherapy. Adjustable Velcro straps securely connect the fixing component to the heel or fingers, effectively preventing treatment position displacement due to patient movement during treatment.

[0018] 2. The fixing component of this utility model, together with the adjusting rod, can adjust the angle according to the actual situation of the patient, better meet the needs of different tumor locations and patient body postures, and improve the versatility and applicability of the positioning device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the fixing component structure of Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjusting rod of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the card holder of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the clamping screw of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0025] Figure 7 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0026] Figure 8 This is a structural schematic diagram of the fixing component of Embodiment 2 of this utility model.

[0027] In the diagram: 1. Fixing component; 11. Ankle support; 111. Adhesive part; 112. Support column; 113. Limiting plate; 114. Top screw; 12. Heel sleeve; 121. First Velcro strap; 13. Hand support; 131. Finger sleeve; 14. Covering fabric; 141. Second Velcro strap; 2. Adjusting rod; 21. Sleeve hole; 3. Card holder; 31. Threaded hole; 32. Slot; 33. Pressing bolt; 4. Pressing screw; 41. Rotating handle; 42. Connecting shaft; 5. Pressure plate; 51. Adapter; 52. Bearing. Detailed implementation method:

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0030] Example 1

[0031] like Figure 1 As shown, a target organ positioning device for tumor radiotherapy includes a fixation component 1 for fixing the patient's heel or fingers. The surface of the fixation component 1 in contact with the target organ is provided with radioactive opaque markers. These markers include a reference marker and auxiliary markers. The reference marker is located at the geometric center of the positioning body, and the auxiliary markers are symmetrically distributed around the reference marker. The core function of these radioactive opaque markers is to provide clear and accurate reference marks for imaging positioning, ensuring that the target organ (heel, fingers, etc.) can be accurately identified and positioned during radiotherapy. An adjusting rod 2 is rotatably connected to the bottom of the fixation component 1, and one end of the adjusting rod 2 is connected to a retainer 3. The adjusting rod 2 can extend and retract relative to the retainer 3. This structure facilitates adjustment of the position of the fixation component 1 and ensures stable use. The bottom of the card holder 3 is provided with multiple clamping screws 4. The top of the clamping screws 4 is rotatably connected to a pressure plate 5. The cooperation between the clamping screws 4 and the pressure plate 5 facilitates clamping on the treatment table. The card holder 3 is engaged with the treatment table, and the clamping screws 4 are used to press against the treatment table, ensuring the stability of the card holder 3, thereby ensuring the stability of the fixing component 1.

[0032] like Figure 2 As shown, the fixation component 1 is shaped like a heel and includes an ankle support 11 and a heel sleeve 12, which are detachably connected. This facilitates fixation of the patient's heel, thereby facilitating radiotherapy for tumors in the heel. The ankle support 11 has adhesive portions 111 near both ends on its outer surface. The heel sleeve 12 is aligned with the adhesive portions 111 and has a first Velcro strap 121 connected to the adhesive portions 111. This facilitates the assembly, disassembly, and tightening of the fixation component 1, ensuring its stable use. The ankle support 11 has a support column 112 at its bottom end. Two limiting plates 113 are provided on the support column 112, and a set screw 114 is provided near the edge of the upper surface of the limiting plates 113. The support column 112, in conjunction with the limiting plates 113, facilitates connection to the adjusting rod 2, allowing for easy adjustment and use of the fixation component 1's rotation angle.

[0033] like Figure 3 As shown, one end of the adjusting rod 2 is provided with a sleeve hole 21, which is sleeved on the support column 112, and the end of the adjusting rod 2 sleeved on the support column 112 is located between the two limiting plates 113. This structure facilitates the stable connection of the adjusting rod 2 to the fixing component 1, and also facilitates the adjustment and fixation of the rotation angle of the fixing component 1.

[0034] like Figure 4As shown, the card holder 3 has a U-shaped structure, and the bottom surface of the card holder 3 has multiple threaded holes 31. This structure facilitates locking onto the treatment table surface, thereby facilitating the fixation of the card holder 3. One end of the top of the card holder 3 has a slot 32, into which the adjusting rod 2 is inserted; this structure facilitates the extension and retraction adjustment of the adjusting rod 2. A clamping bolt 33 is located on the upper surface of the card holder 3 near the fixing component 1, which facilitates fixing the extended length of the adjusting rod 2.

[0035] like Figure 5 As shown, the clamping screw 4 is threadedly connected to the threaded hole 31. The bottom end of the clamping screw 4 is provided with a rotating handle 41, which facilitates the rotation of the clamping screw 4. The top end of the clamping screw 4 is provided with a connecting shaft 42, which facilitates the rotational connection with the pressure plate 5.

[0036] like Figure 6 As shown, the bottom surface of the pressure plate 5 is provided with an adapter 51, and the middle part of the adapter 51 is provided with a bearing 52. The bearing 52 is interference-fitted with the connecting shaft 42. The cooperation between the adapter 51 and the bearing 52 facilitates the rotational connection between the pressure plate 5 and the clamping screw 4, and facilitates the clamping screw 4 to drive the pressure plate 5 to press firmly on the treatment table.

[0037] Example 2

[0038] like Figure 2 As shown, a target organ positioning device for tumor radiotherapy includes a fixation component 1 for fixing the patient's heel or fingers. The surface of the fixation component 1 in contact with the target organ is provided with radioactive opaque markers. These markers include a reference marker and auxiliary markers. The reference marker is located at the geometric center of the positioning body, and the auxiliary markers are symmetrically distributed around the reference marker. The core function of these radioactive opaque markers is to provide clear and accurate reference marks for imaging positioning, ensuring that the target organ (heel, fingers, etc.) can be accurately identified and positioned during radiotherapy. An adjusting rod 2 is rotatably connected to the bottom of the fixation component 1, and one end of the adjusting rod 2 is connected to a retainer 3. The adjusting rod 2 can extend and retract relative to the retainer 3. This structure facilitates adjustment of the position of the fixation component 1 and ensures stable use. The bottom of the card holder 3 is provided with multiple clamping screws 4. The top of the clamping screws 4 is rotatably connected to a pressure plate 5. The cooperation between the clamping screws 4 and the pressure plate 5 facilitates clamping on the treatment table. The card holder 3 is engaged with the treatment table, and the clamping screws 4 are used to press against the treatment table, ensuring the stability of the card holder 3, thereby ensuring the stability of the fixing component 1.

[0039] like Figure 7As shown, the fixing component 1 includes a hand rest 13 and a covering fabric 14. The hand rest 13 is made of a rigid material, while the covering fabric 14 is made of a soft material and is tied to the upper surface of the hand rest 13. This structure facilitates the insertion of the hand into the hand rest 13 and fixes the palm inside the fixing component 1. The end of the hand rest 13 has multiple finger sleeves 131 for easy placement on the fingers. The upper surface of the hand rest 13 has an opening aligned with the palm, and one end of the covering fabric 14 is connected to this opening. This structure facilitates the insertion of the patient's palm into the hand rest 13 and facilitates finger fixation. The other end of the covering fabric 14 has a second Velcro strap 141, which is tied to the end of the hand rest 13 aligned with the wrist, ensuring a stable connection between the fixing component 1 and the palm. The bottom surface of the hand support 13 is provided with a support column 112, and two limiting plates 113 are provided on the support column 112. The upper surface edge of the top limiting plate 113 is provided with a set screw 114. This structure facilitates the stable connection of the hand support 13 to the adjusting rod 2, and makes it easy to fix and adjust the hand support 13.

[0040] like Figure 3 As shown, one end of the adjusting rod 2 is provided with a sleeve hole 21, which is sleeved on the support column 112, and the end of the adjusting rod 2 sleeved on the support column 112 is located between the two limiting plates 113. This structure facilitates the stable connection of the adjusting rod 2 to the fixing component 1, and also facilitates the adjustment and fixation of the rotation angle of the fixing component 1.

[0041] like Figure 4 As shown, the card holder 3 has a U-shaped structure, and the bottom surface of the card holder 3 has multiple threaded holes 31. This structure facilitates locking onto the treatment table surface, thereby facilitating the fixation of the card holder 3. One end of the top of the card holder 3 has a slot 32, into which the adjusting rod 2 is inserted; this structure facilitates the extension and retraction adjustment of the adjusting rod 2. A clamping bolt 33 is located on the upper surface of the card holder 3 near the fixing component 1, which facilitates fixing the extended length of the adjusting rod 2.

[0042] like Figure 5 As shown, the clamping screw 4 is threadedly connected to the threaded hole 31. The bottom end of the clamping screw 4 is provided with a rotating handle 41, which facilitates the rotation of the clamping screw 4. The top end of the clamping screw 4 is provided with a connecting shaft 42, which facilitates the rotational connection with the pressure plate 5.

[0043] like Figure 6 As shown, the bottom surface of the pressure plate 5 is provided with an adapter 51, and the middle part of the adapter 51 is provided with a bearing 52. The bearing 52 is interference-fitted with the connecting shaft 42. The cooperation between the adapter 51 and the bearing 52 facilitates the rotational connection between the pressure plate 5 and the clamping screw 4, and facilitates the clamping screw 4 to drive the pressure plate 5 to press firmly on the treatment table.

[0044] Working principle: In use, select the appropriate fixation component 1 according to the location of the patient's tumor, and then fix the fixation component 1 at the tumor location. Next, connect the fixation component 1, along with the adjusting rod 2, to the mounting base 3, and then lock the mounting base 3 onto the treatment table. The position of the mounting base 3 is then fixed by the clamping screw 4 and the pressure plate 5, ensuring a stable connection between the mounting base 3 and the treatment table. Then, adjust the position and angle of the fixation component 1 according to the treatment needs. Finally, tighten the clamping screw 4 and the set screw 114 to fix the extension length of the adjusting rod 2 and the angle of the fixation component 1. Finally, the treatment instrument can be used to treat the patient.

[0045] In summary, compared with existing technologies, this application, through its specially designed fixation component 1 adapted to the shape of the heel and fingers, and high-precision radiopaque markers, enables precise positioning of target organs during imaging examinations, thereby improving the accuracy of radiotherapy. The adjustable Velcro straps securely connect the fixation component 1 to the heel or fingers, effectively preventing treatment position displacement due to patient movement during treatment.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A target organ localization device for tumor radiotherapy, characterized in that, The device includes a fixation component (1) for fixing the patient's heel or fingers; the surface of the fixation component (1) in contact with the target organ is provided with radioactive opaque markings; an adjustment rod (2) is rotatably connected to the bottom of the fixation component (1), one end of the adjustment rod (2) is connected to a retainer (3), and the adjustment rod (2) is telescopic relative to the retainer (3); the bottom of the retainer (3) is provided with multiple clamping screws (4), and a pressure plate (5) is rotatably connected to the top of the clamping screws (4).

2. The target organ localization device for tumor radiotherapy according to claim 1, characterized in that, The fixing component (1) is shaped like a heel, and the fixing component (1) includes an ankle support (11) and a heel sleeve (12), which are detachably connected.

3. A target organ localization device for tumor radiotherapy according to claim 2, characterized in that, The ankle support (11) has adhesive parts (111) near both ends on its outer surface. The heel sleeve (12) is provided with a first Velcro strap (121) aligned with the adhesive parts (111). The first Velcro strap (121) is connected to the adhesive parts (111). The bottom end of the ankle support (11) is provided with a support column (112). The support column (112) is provided with two limiting plates (113). The upper surface of the limiting plate (113) is provided with a top screw (114) near the edge.

4. A target organ localization device for tumor radiotherapy according to claim 1, characterized in that, The fixing component (1) includes a hand rest (13) and a wrapping fabric (14). The hand rest (13) is made of a hard material, and the wrapping fabric (14) is made of a soft material. The wrapping fabric (14) is tied to the upper surface of the hand rest (13).

5. A target organ localization device for tumor radiotherapy according to claim 4, characterized in that, The end of the hand support (13) is provided with multiple finger sleeves (131), and the upper surface of the hand support (13) is provided with an opening aligned with the palm. One end of the wrapping fabric (14) is connected to the opening aligned with the palm on the upper surface of the hand support (13), and the other end of the wrapping fabric (14) is provided with a second Velcro strap (141), which is tied to the end of the hand support (13) aligned with the wrist.

6. A target organ localization device for tumor radiotherapy according to claim 5, characterized in that, The bottom surface of the hand support (13) is provided with a support column (112), and the support column (112) is provided with two limiting plates (113). The upper edge of the upper surface of the limiting plate (113) is provided with a set screw (114).

7. A target organ localization device for tumor radiotherapy according to claim 2, characterized in that, The adjusting rod (2) has a sleeve hole (21) at one end, which is sleeved on the support column (112), and the end of the adjusting rod (2) sleeved on the support column (112) is located between two limiting plates (113).

8. A target organ localization device for tumor radiotherapy according to claim 7, characterized in that, The card holder (3) has a U-shaped structure, and the bottom surface of the card holder (3) is provided with multiple threaded holes (31). The top end of the card holder (3) is provided with a slot (32), and the adjusting rod (2) is inserted into the inside of the slot (32). The upper surface of the card holder (3) near the fixing component (1) is provided with a clamping bolt (33).

9. A target organ localization device for tumor radiotherapy according to claim 8, characterized in that, The clamping screw (4) is threadedly connected to the threaded hole (31), the bottom end of the clamping screw (4) is provided with a rotating handle (41), and the top end of the clamping screw (4) is provided with a connecting shaft (42).

10. A target organ localization device for tumor radiotherapy according to claim 9, characterized in that, The bottom surface of the pressure plate (5) is provided with an adapter (51), and the middle part of the adapter (51) is provided with a bearing (52), which is interference-fitted with the connecting shaft (42).

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