A positioning and fixation device for electric field therapy concurrent with head radiotherapy

Abstract

This application relates to a positioning and fixation device for simultaneous head radiotherapy using electric field therapy, belonging to the field of medical device technology. It includes a positioning body and a fixation component. The positioning body is a latex-free polyurethane foam positioning body that encloses and forms a head-accommodating space. The fixation component is disposed on the positioning body and is used to adjust the size of the enclosed space of the positioning body. The latex-free polyurethane foam positioning body covers the patient's head, effectively isolating the potential interference of the electrode pads to the CT scanner and ensuring precise positioning during radiotherapy. Furthermore, due to its unique structure and excellent water absorption properties, it provides excellent comfort and stability in the treatment area. The fixation component allows the positioning body to flexibly adapt to patients with different head circumferences, ensuring that each patient receives stable and precise fixation. This solves the problem of the lack of existing devices that can effectively isolate the potential interference of the electrode pads to the CT scanner and ensure precise positioning during radiotherapy.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a positioning and fixation device for simultaneous head radiotherapy with electric field therapy. Background Technology

[0002] Tumor treating fields (TTFields) are commonly used to treat patients with glioblastoma multiforme (GBM).

[0003] TTFields utilizes a low-intensity electric field of a specific frequency to precisely target tumor cells through a sensor array, effectively interfering with their division process. This prolongs patients' progression-free survival (PFS) and overall survival (OS) without damaging normal tissue.

[0004] However, in existing treatment procedures that combine TTFields with radiotherapy for GBM patients, radiotherapy localization typically relies on high-precision computed tomography (CT) scans. The TTFields electrodes worn on the patient's head can interfere with CT imaging, potentially reducing image quality and affecting the accurate delineation of the radiotherapy target area. Therefore, selecting an auxiliary device that can effectively isolate the potential interference of the electrodes with the CT scanner and ensure precise localization during radiotherapy is crucial.

[0005] Regarding the aforementioned technologies, there is a problem that existing technologies lack a device that can effectively isolate the potential interference of electrode pads to the CT scanner and ensure precise positioning during radiotherapy. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a positioning and fixation device for simultaneous head radiotherapy with electric field therapy, which aims to solve the problem that the existing technology lacks a device that can effectively isolate the potential interference of the electrode pads to the CT machine and ensure accurate positioning during radiotherapy.

[0007] The positioning and fixation device for simultaneous electric field therapy and head radiotherapy provided in this application adopts the following technical solution: A positioning and fixation device for simultaneous electric field therapy and head radiotherapy, comprising:

[0008] The positioning body is a latex-free polyurethane foam positioning body, which is used to enclose and form a head-accommodating space that can accommodate the head.

[0009] A fixing component is disposed on the positioning body, and the fixing component is used to adjust the circumference size of the positioning body.

[0010] Optionally, the fixing component includes a fixing protrusion, which is disposed at one end of the positioning body. The other end of the positioning body is provided with a plurality of fixing holes, which are spaced apart along the enclosing direction of the positioning body. The fixing protrusion engages with the fixing holes.

[0011] Optionally, the fixing component includes an adhesive attachment and an adhesive mating component, the adhesive attachment and the adhesive mating component being disposed at both ends of the positioning body, and the adhesive attachment and the adhesive mating component being bonded together.

[0012] Optionally, the positioning and fixation device for simultaneous electric field therapy and head radiotherapy includes a lead wire for connecting to the electrode pad.

[0013] Optionally, the positioning and fixing device for simultaneous head radiotherapy with electric field therapy includes a wire fixation member, which is disposed on the positioning body, and the lead wire is disposed on the wire fixation member, which is used to fix the lead wire.

[0014] Optionally, the lead wire is detachably mounted on the wire fixing member, and the wire fixing member is detachably mounted on the positioning body.

[0015] Optionally, an adhesion area is provided on one side of the wire fixing member, and the adhesion area is bonded to the positioning body.

[0016] Optionally, the wire fixing member has a wire receiving groove on one side where the adhesion area is provided, and the wire receiving groove is used to receive the lead wire.

[0017] Optionally, the adhesion area is disposed around the line receiving groove.

[0018] Optionally, multiple wire fixing components are provided, and the connecting wires are all disposed on multiple wire fixing components, with the multiple wire fixing components spaced apart on the positioning body.

[0019] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0020] Latex-free polyurethane foam possesses excellent biocompatibility, stable physicochemical properties, and superior processing and molding characteristics. Using a latex-free polyurethane foam positioning unit to wrap the patient's head not only effectively isolates the potential interference of the electrode pads to the CT scanner, ensuring precise positioning during radiotherapy, but also provides excellent comfort and stability in the treatment area due to its unique structure and excellent water absorption, significantly improving the patient's treatment experience. The fixation components allow the positioning unit to flexibly adapt to patients with different head circumferences, ensuring stable and accurate fixation for each patient, improving both the success rate of positioning and the comfort of treatment.

[0021] This solves the problem of the lack of existing technology that can effectively isolate the potential interference of electrode pads to the CT scanner and ensure precise positioning during radiotherapy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the positioning and fixation device for simultaneous head radiotherapy with electric field therapy in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the overall structure of the positioning and fixation device for simultaneous head radiotherapy with electric field therapy in the embodiments of this application at different angles;

[0025] Figure 3 This is a schematic diagram of the positioning body and fixing protrusion of the positioning and fixing device for simultaneous head radiotherapy with electric field therapy in the embodiment of this application, in the deployed state of the positioning body;

[0026] Figure 4 This is a schematic diagram of the positioning body and adhesive attachments of the positioning and fixing device for simultaneous head radiotherapy with electric field therapy in the embodiment of this application, in the deployed state of the positioning body;

[0027] Figure 5 This is a schematic diagram of the positioning body and adhesive mating parts of the positioning and fixing device for simultaneous head radiotherapy with electric field therapy in the embodiment of this application, in the deployed state of the positioning body;

[0028] Figure 6 This is a schematic diagram of the wire fixing component of the positioning and fixing device for simultaneous head radiotherapy using electric field therapy in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Positioning body; 11. Fixing hole; 2. Fixing component; 21. Fixing protrusion; 22. Adhesive attachment; 23. Adhesive mating part; 3. Wire fixing part; 31. Adhesive area; 32. Wire receiving groove. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] In recent years, treatment options for newly diagnosed GBM patients have seen continuous breakthroughs. As a highly aggressive type of primary brain tumor, GBM treatment strategies have gradually evolved from traditional single-therapy approaches to a multidisciplinary comprehensive treatment model. The introduction of TTFields has brought new hope to the treatment of GBM patients.

[0034] TTFields utilizes a low-intensity electric field of a specific frequency to precisely target tumor cells through a sensor array, effectively interfering with their division process. This prolongs patients' progression-free survival (PFS) and overall survival (OS) without damaging normal tissue.

[0035] However, a key technical challenge in applying TTFields concurrently with radiotherapy to GBM patients is ensuring accurate radiotherapy localization without compromising the therapeutic efficacy of TTFields. Radiotherapy localization typically relies on high-precision CT scans, but the TTFields electrodes worn on the patient's head can interfere with CT imaging, potentially reducing image quality and affecting the accurate delineation of the radiotherapy target area. Therefore, selecting an auxiliary device that is compatible with TTFields treatment while maintaining accurate radiotherapy localization is crucial.

[0036] This application discloses a positioning and fixation device for simultaneous head radiotherapy with electric field therapy.

[0037] like Figure 1 and Figure 2 As shown, a positioning and fixation device for simultaneous head radiotherapy with electric field therapy includes a positioning body 1 and a fixation component 2. The positioning body 1 is a latex-free polyurethane foam positioning body 1, which is used to enclose and form a head receiving space that can accommodate the head. The fixation component 2 is disposed on the positioning body 1 and is used to adjust the enclosed size of the positioning body 1.

[0038] Latex-free polyurethane foam possesses excellent biocompatibility, stable physicochemical properties, and superior processing and molding characteristics. Using the latex-free polyurethane foam positioning body 1 to cover the patient's head not only effectively isolates the potential interference of the electrode pads to the CT scanner, ensuring precise positioning during radiotherapy, but also provides excellent comfort and stability in the treatment area due to its unique structure and excellent water absorption, significantly improving the patient's treatment experience. The fixation component 2 allows the positioning body 1 to flexibly adapt to patients with different head circumferences, ensuring that each patient achieves a stable and precise fixation effect, improving not only the success rate of positioning but also enhancing treatment comfort.

[0039] This solves the problem of the lack of existing technology that can effectively isolate the potential interference of electrode pads to the CT scanner and ensure precise positioning during radiotherapy.

[0040] like Figure 2 and Figure 3 As shown, the fixing component 2 includes a fixing protrusion 21, which is disposed at one end of the positioning body 1. The other end of the positioning body 1 is provided with a plurality of fixing holes 11, which are spaced apart along the enclosing direction of the positioning body 1. The fixing protrusion 21 engages with the fixing holes 11.

[0041] Specifically, since the fixing component 2 is used to adjust the size of the positioning body 1, when using the positioning body 1, the inner surface of the positioning body 1 can be placed against the patient's head. Then, the positioning body 1 surrounds the patient's head and is finally fixed by the fixing component 2, thus realizing the positioning body 1 being worn on the patient's head.

[0042] The positioning body 1 is connected end to end, covering the patient's head in the internal head-accommodating space, so that the positioning body 1 can be worn on the patient's head and ensure that each patient can obtain a stable and accurate fixation effect.

[0043] Since multiple fixing holes 11 are spaced apart along the enclosing direction of the positioning body 1, the fixing protrusion 21 can adjust the size of the head accommodating space by engaging different fixing holes 11 to accommodate patients with different head sizes, making the operation convenient and quick.

[0044] Furthermore, taking the direction enclosed by the positioning body 1 as the lateral direction, the direction perpendicular to it is the longitudinal direction.

[0045] Multiple fixing holes 11 are provided along the longitudinal direction, and multiple fixing protrusions 21 are also provided along the longitudinal direction, corresponding to the number of holes 11.

[0046] The engagement of multiple fixing holes 11 along the longitudinal direction of the positioning body 1 with the corresponding multiple fixing protrusions 21 can improve the stability of the enclosed connection of the positioning body 1 and prevent the fixing protrusions 21 from disengaging from the fixing holes 11 during the process of the patient wearing the positioning body 1.

[0047] like Figure 2 , Figure 4 and Figure 5 As shown, the fixing component 2 includes an adhesive attachment 22 and an adhesive mating part 23. The adhesive attachment 22 and the adhesive mating part 23 are disposed at both ends of the positioning body 1, and the adhesive attachment 22 and the adhesive mating part 23 are bonded together.

[0048] Specifically, the adhesive attachment 22 and the adhesive mating part 23 are respectively disposed on the inner surface and the outer surface of the positioning body 1, and the adhesive attachment 22 and the adhesive mating part 23 extend along the enclosing direction of the positioning body 1.

[0049] After the patient's head is enclosed in the internal head-receiving space, the adhesive attachment 22 can be bonded to the adhesive mating part 23 to fix the shape of the positioning body 1. Since the adhesive attachment 22 can be bonded to any position of the adhesive mating part 23, the adhesive attachment 22 and the adhesive mating part 23 have a stepless fit, which allows for fine adjustment of the shape of the positioning body 1 after it is enclosed. It has a high-precision characteristic, ensuring that each patient can obtain a stable and accurate fixation effect.

[0050] In this embodiment, since the adhesive attachment 22 is located on the inner surface of the positioning body 1, in order to prevent the adhesive attachment 22 from adhering to the patient's skin or causing discomfort to the patient, the adhesive attachment 22 and the adhesive mating part 23 are respectively the rough side and the hook side of the Velcro.

[0051] The positioning and fixation device for simultaneous head radiotherapy using electric field therapy includes lead wires for connection to electrode pads.

[0052] Specifically, the lead wires are used to transmit the low-intensity alternating electric field generated by the device to the electrode patch on the body surface. The electric field interferes with the arrangement of microtubule proteins during the mitosis of cancer cells, thereby inhibiting tumor growth.

[0053] Furthermore, the lead wire also has a magnetoelectric positioning function, which generates an electric field through the skin electrodes to track the electrode position in real time.

[0054] like Figure 1 and Figure 6As shown, the positioning and fixing device for simultaneous head radiotherapy with electric field therapy includes a wire fixation member 3, which is mounted on the positioning body 1. The lead wire is mounted on the wire fixation member 3, and the wire fixation member 3 is used to fix the lead wire.

[0055] Specifically, the wire fixation component 3 is used to fix the lead wire to the outer surface of the positioning body 1, thereby effectively preventing the lead wire from moving or misaligning, thus further ensuring the accuracy of radiotherapy. This design not only simulates the lead wire fixation space, increasing the accuracy of positioning and improving the precision of treatment, but also greatly simplifies the operation steps during treatment and improves the treatment effect.

[0056] The lead wire is detachably mounted on the wire fixing member 3, which is detachably mounted on the positioning body 1. An adhesion area 31 is provided on one side of the wire fixing member 3, and the adhesion area 31 is bonded to the positioning body 1.

[0057] Specifically, the lead wire is detachably mounted on the wire fixing component 3, and the wire fixing component 3 is detachably mounted on the positioning body 1, making it convenient to remove and replace the wire fixing component 3 at any time.

[0058] The wire fixing member 3 has a wire receiving groove 32 on one side of the adhesive area 31. The wire receiving groove 32 is used to receive the lead wire. In this embodiment, the wire receiving groove 32 is located on the central axis of the wire fixing member 3, and the adhesive area 31 is located around the wire receiving groove 32.

[0059] In use, the lead wire can be placed in the wire receiving groove 32 first, and then the wire fixing member 3 can be attached to the positioning body 1 through the adhesion area 31, thereby fixing the lead wire.

[0060] like Figure 1 and Figure 6 As shown, there are multiple wire fixing components 3, and the lead wires are all set on multiple wire fixing components 3. The multiple wire fixing components 3 are spaced apart on the positioning body 1.

[0061] Specifically, multiple wire fixing components 3 are spaced apart on the positioning body 1, and the lead wires are sequentially threaded through the wire receiving grooves 32 on each wire fixing component 3, thereby enhancing the limiting of the lead wires, effectively preventing the misalignment of the lead wires, and better simulating the fixing space of the lead wires according to actual needs.

[0062] At the same time, it stabilizes the position of the lead wires on the positioning body 1, preventing the lead wires from moving in front of the patient's eyes during treatment, thus affecting the patient's treatment experience.

[0063] In summary, a positioning and fixation device for simultaneous head radiotherapy with electric field therapy includes a positioning body 1 and a fixation component 2. The positioning body 1 is a latex-free polyurethane foam positioning body 1, which is used to enclose and form a head-accommodating space to accommodate the head. The fixation component 2 is disposed on the positioning body 1 and is used to adjust the enclosed size of the positioning body 1.

[0064] Latex-free polyurethane foam possesses excellent biocompatibility, stable physicochemical properties, and superior processing and molding characteristics. Using the latex-free polyurethane foam positioning body 1 to cover the patient's head not only effectively isolates the potential interference of the electrode pads to the CT scanner, ensuring precise positioning during radiotherapy, but also provides excellent comfort and stability in the treatment area due to its unique structure and excellent water absorption, significantly improving the patient's treatment experience. The fixation component 2 allows the positioning body 1 to flexibly adapt to patients with different head circumferences, ensuring that each patient achieves a stable and precise fixation effect, improving not only the success rate of positioning but also enhancing treatment comfort.

[0065] This solves the problem of the lack of existing technology that can effectively isolate the potential interference of electrode pads to the CT scanner and ensure precise positioning during radiotherapy.

[0066] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0067] It should be noted that this utility model is described in the example of a positioning and fixing device for simultaneous head radiotherapy with electric field therapy. However, the application of this utility model is not limited to a positioning and fixing device for simultaneous head radiotherapy with electric field therapy, and it can also be applied to the production and use of other similar workpieces.

[0068] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning and fixation device for simultaneous head radiotherapy with electric field therapy, characterized in that, include: The positioning body is a latex-free polyurethane foam positioning body, which is used to enclose and form a head-accommodating space that can accommodate the head. A fixing component is disposed on the positioning body, and the fixing component is used to adjust the circumference size of the positioning body.

2. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 1, characterized in that, The fixing component includes a fixing protrusion, which is disposed at one end of the positioning body. The other end of the positioning body is provided with a plurality of fixing holes, which are spaced apart along the enclosing direction of the positioning body. The fixing protrusion engages with the fixing holes.

3. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 1, characterized in that, The fixing component includes an adhesive attachment and an adhesive mating component, which are disposed at both ends of the positioning body and are bonded together.

4. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 1, characterized in that, The positioning and fixation device for simultaneous head radiotherapy with electric field therapy includes a lead wire for connecting to an electrode pad.

5. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 4, characterized in that, The positioning and fixing device for simultaneous head radiotherapy with electric field therapy includes a wire fixation component, which is disposed on the positioning body, and the lead wire is disposed on the wire fixation component. The wire fixation component is used to fix the lead wire.

6. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 5, characterized in that, The lead wire is detachably mounted on the wire fixing member, and the wire fixing member is detachably mounted on the positioning body.

7. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 6, characterized in that, An adhesive area is provided on one side of the wire fixing member, and the adhesive area is bonded to the positioning body.

8. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 7, characterized in that, The wire fixing member has a wire receiving groove on one side where the adhesion area is provided, and the wire receiving groove is used to accommodate the lead wire.

9. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 8, characterized in that, The adhesion area is arranged around the line receiving groove.

10. The positioning and fixation device for simultaneous head radiotherapy with electric field therapy according to claim 5, characterized in that, Multiple wire fixing components are provided, and the connecting wires are all disposed on multiple wire fixing components. The multiple wire fixing components are spaced apart on the positioning body.

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