Tumor close-range after-loading therapy source applicator fixing band

Abstract

The utility model relates to the technical field of tumor radiotherapy equipment, in particular to a tumor close-range after-loading therapy source applicator fixing band which comprises two binding bands, a horizontal section and a tightening structure, one end of each binding band is provided with a first magnet, the horizontal section is provided with a vertical section, and the tightening structure comprises a rotating disc, a winding roller and a collecting box. Two fixing rods are arranged on the end face of the rotating disc, the rotating disc is in sliding connection with the winding roller, the winding roller is rotationally connected with the collecting box, the two fixing rods are connected with the collecting box in a clamped mode, the collecting box abuts against the lower end face of the vertical section, and the binding belt is wound into the collecting box through mutual cooperation of the rotating disc and the winding roller. And the rotating disc is fixed through the fixing rod, so that the binding belt is prevented from being separated from the collecting box, the tightness can be controlled, post-operation disassembly is facilitated, and the practicability of the fixing belt is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tumor radiotherapy equipment, in particular to a fixing belt for a tumor brachytherapy applicator. Background Art

[0002] At present, with the development of tumor radiotherapy technology, brachytherapy has begun to be widely used in the treatment of malignant tumors. Especially for patients with middle and advanced cervical cancer and rectal cancer, radiotherapy is the most effective treatment method, and brachytherapy plays a crucial role in the whole treatment process. However, at present, during the brachytherapy of abdominal and pelvic tumors, after the applicator is implanted, a cotton ball extrusion and stuffing method is mostly used for fixation and / or an external metal stent is used for fixation. The cotton ball extrusion and stuffing method is to use a dry cotton ball for stuffing and extrusion after the applicator is implanted to keep the applicator relatively fixed with the patient's body. This method has the defects that the patient's tolerance is poor, and if the extrusion is too tight, it is easy to cause the deformation of the applicator, resulting in poor treatment dose distribution. If the deformation is serious, it may lead to treatment interruption or failure; the external metal stent fixation method is to clamp the applicator with an applicator clamp after the applicator is implanted to keep the applicator fixed relative to the patient's body. However, since the fixator cannot be fixed with the patient as a rigid body, the applicator often detaches due to the involuntary movement of the patient during the treatment process.

[0003] The prior art patent CN205108789U discloses a fixing belt for a tumor brachytherapy applicator, which includes a fixing belt body and a binding belt. The fixing belt body is of a "T" - shaped structure and consists of a horizontal section and a vertical section. The two ends of the horizontal section of the fixing belt body in the horizontal direction are respectively connected with binding belts. An "I" - shaped structure is arranged on the vertical section. A applicator fixing opening is arranged in parallel at the center of the "I" - shaped structure in the vertical direction. A plurality of binding holes for adjusting the use according to patients of different body types are distributed on the vertical section at the lower part of the "I" - shaped structure. An elastic band is arranged between the applicator fixing opening and the binding holes to keep a certain pressure on the applicator. This device has low manufacturing cost, stable structure, good fixing effect and simple operation, and is very suitable for clinical application.

[0004] However, in the above - mentioned prior art, the two binding belts are connected by tying a slipknot. During the operation, the binding belts may be accidentally touched, so that the binding belts are easily tied into a dead knot, which is not convenient for disassembly after the operation. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a fixing belt for a tumor brachytherapy applicator, aiming to solve the technical problem in the prior art that the two binding belts are connected by tying a slipknot. During the operation, the binding belts may be accidentally touched, resulting in the formation of a dead knot in the connection of the binding belts, which is not convenient for disassembly after the operation.

[0006] To achieve the above object, a fixing belt for a tumor brachytherapy applicator adopted by the present utility model includes two binding belts, a horizontal section, and a tightening structure. A first magnet is provided at one end of each binding belt. A vertical section is provided on the horizontal section. A source applicator fixing opening is provided in the middle of the vertical section. Multiple binding holes are provided on the vertical section. The two binding belts are respectively fixedly connected to the horizontal section and are located at both ends of the horizontal section. The tightening structure includes a rotating disk, a winding roller, and a collecting box. Two fixing rods are provided on the end face of the rotating disk. A rectangular groove is provided in the middle of the rotating disk. A rectangular block is provided at one end of the winding roller. Multiple card slots are provided on the winding roller. Second magnets are provided in the card slots. Multiple fixing slots are provided on one side of the collecting box, and the multiple fixing slots are arranged in a ring shape. An opening is provided on the end face of the collecting box. The rotating disk is slidably connected to the winding roller, and the rectangular groove is sleeved on the rectangular block. The winding roller is rotatably connected to the collecting box and is located inside the collecting box, and the rotating disk is located on one side of the collecting box. The two fixing rods are respectively clamped with the collecting box and are located in the corresponding card slots. The collecting box abuts against the lower end face of the vertical section, and the opening is aligned with the corresponding binding hole.

[0007] Among them, the tightening structure further includes a threaded sleeve and a threaded rod. The threaded sleeve is threadedly connected to the threaded rod and is sleeved on the threaded rod. The threaded sleeve also abuts against the rotating disk and is located on the other end face of the rotating disk. The threaded rod is fixedly connected to the rectangular block and is located at one end of the rectangular block.

[0008] Among them, the tightening structure further includes a limiting ring. The limiting ring is fixedly connected to the threaded rod and is located at one end of the threaded rod.

[0009] Among them, the fixing belt for a tumor brachytherapy applicator further includes an elastic band. The elastic band is sleeved on the vertical section.

[0010] Among them, the fixing belt for a tumor brachytherapy applicator further includes two soft pads. The two soft pads are respectively adhered to the horizontal section and are located on the front and rear end faces of the horizontal section.

[0011] Among them, the elastic band includes a burr surface, a fiber surface and a band body. The burr surface is fixedly connected to the band body and is located at one end of the band body. The fiber surface is fixedly connected to the band body and is located at the other end of the band body. Moreover, the fiber surface is also adhesively bonded to the burr surface and is located above the burr surface. The band body is sleeved on the vertical section.

[0012] Among them, the restraint band includes a plurality of anti-slip pads and a restraint band body. The plurality of anti-slip pads are respectively adhesively bonded to the restraint band body and are located on the front and rear end faces of the restraint band. The restraint band body is fixedly connected to the horizontal section and is located at one end of the horizontal section.

[0013] A fixation strap for a tumor brachytherapy applicator according to the present utility model includes two restraint bands, a horizontal section and a tightening structure. A first magnet is provided at one end of the restraint band. A vertical section is provided on the horizontal section. The tightening structure includes a rotating disk, a winding roller and a collecting box. Two fixing rods are provided on the end face of the rotating disk. A rectangular groove is formed in the middle of the rotating disk. A rectangular block is provided at one end of the winding roller. A plurality of card slots are formed on the winding roller. A second magnet is provided in the card slot. The rotating disk is slidably connected to the winding roller, and the rectangular groove is sleeved on the rectangular block. The winding roller is rotatably connected to the collecting box. The two fixing rods are respectively clamped to the collecting box. The collecting box abuts against the lower end face of the vertical section. The restraint band is wound into the collecting box through the mutual cooperation of the rotating disk and the winding roller, and then the rotating disk is fixed by the fixing rod, so as to prevent the restraint band from coming out of the collecting box, and the tightness can be controlled, thereby facilitating postoperative disassembly and effectively improving the practicability of the fixation strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a three-dimensional perspective view of the first embodiment of the present utility model.

[0016] Figure 2 is a structural schematic diagram of the winding structure in the first embodiment of the present utility model.

[0017] Figure 3 is of the present utility model Figure 2 cross-sectional view taken along line A-A.

[0018] Figure 4 is the Figure 2 cross-sectional view taken along line B-B in the present utility model.

[0019] Figure 5 is the Figure 2 cross-sectional view taken along line C-C in the present utility model.

[0020] Figure 6 is the three-dimensional perspective view of the second embodiment of the present utility model.

[0021] Figure 7 is the Figure 6 partial enlarged view at D in the present utility model.

[0022] 101 - restraint band, 102 - horizontal section, 103 - first magnet, 104 - vertical section, 105 - applicator fixing port, 106 - restraint hole, 107 - rotating disc, 108 - winding roller, 109 - collection box, 110 - fixing rod, 111 - rectangular groove, 112 - rectangular block, 113 - card slot, 114 - second magnet, 115 - fixing slot, 116 - opening, 117 - threaded sleeve, 118 - threaded rod, 119 - limiting ring, 201 - soft pad, 202 - burr surface, 203 - fiber surface, 204 - belt body, 205 - anti-slip pad, 206 - restraint band body. Specific Embodiments

[0023] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0024] First Embodiment:

[0025] Please refer to Figures 1 to 5 , where Figure 1 is the three-dimensional perspective view of the first embodiment of the present utility model, Figure 2 is the structural schematic diagram of the winding structure in the first embodiment of the present utility model, Figure 3 is the Figure 2 cross-sectional view taken along line A-A in the present utility model, Figure 4 is the Figure 2 cross-sectional view taken along line B-B in the present utility model, Figure 5 is the Figure 2 cross-sectional view taken along line C-C in the present utility model.

[0026] The present invention provides a fixing belt for a tumor close-range afterloading treatment applicator, comprising two restraining belts 101, a horizontal section 102 and a tightening structure, wherein the tightening structure comprises a rotating disk 107, a winding roller 108, a collecting box 109, a threaded sleeve 117, a threaded rod 118 and a limiting ring 119. The above scheme solves the technical problem that the two restraining belts 101 are connected by tying a loose knot, and the restraining belts 101 may be accidentally touched during the operation, thereby making it easy for the restraining belts 101 to form a dead knot connection, which is inconvenient for disassembly after the operation. It can be understood that the above scheme can be used in the scenario of close-range afterloading treatment of tumors, and can also be used to solve the problem that the rope is easy to be tied into a dead knot.

[0027] According to this specific embodiment, a first magnet 103 is provided at one end of the restraint belt 101, a vertical section 104 is provided on the horizontal section 102, a source fixing port 105 is provided in the middle of the vertical section 104, and a plurality of restraint holes 106 are provided on the vertical section 104. The two restraint belts 101 are respectively fixedly connected to the horizontal section 102 and are located at both ends of the horizontal section 102. By placing the fixing belt under the patient, the restraint belt 101, the horizontal section 102 and the vertical section 104 are all unfolded. After the doctor successfully inserts the abdominal and pelvic source applicator, the tail end of the source applicator is passed through the cross-shaped source fixing port 105, and then the position of the fixing belt is adjusted. The restraint belt 101 is passed through the appropriate restraint hole 106 and inserted into the tightening structure for winding and fixing. The whole process keeps the fixing belt flat and close to the patient's body.

[0028] Among them, two fixing rods 110 are arranged on the end face of the rotating disk 107. A rectangular groove 111 is formed in the middle of the rotating disk 107. One end of the winding roller 108 is provided with a rectangular block 112. A plurality of clamping grooves 113 are formed on the winding roller 108. A second magnet 114 is arranged in the clamping groove 113. A plurality of fixing grooves 115 are formed on one side of the collection box 109, and the plurality of fixing grooves 115 are arranged in a ring shape. An opening 116 is formed on the end face of the collection box 109. The rotating disk 107 is slidably connected with the winding roller 108, and the rectangular groove 111 is sleeved on the rectangular block 112. The winding roller 108 is rotatably connected with the collection box 109 and is located inside the collection box 109. The rotating disk 107 is located on one side of the collection box 109. The two fixing rods 110 are respectively clamped with the collection box 109 and are located in the corresponding clamping grooves 113. The collection box 109 abuts against the lower end face of the vertical section 104, and the opening 116 is aligned with the corresponding binding hole 106. The binding belt 101 is wound into the collection box 109 through the mutual cooperation of the rotating disk 107 and the winding roller 108, and then the rotating disk 107 is fixed by the fixing rod 110, so as to prevent the binding belt 101 from slipping out of the collection box 109. The first magnet 103 can facilitate the combination of the two binding belts 101, and then the binding belts 101 are inserted into the clamping groove 113 through the binding holes 106 and the opening 116 and are adsorbed with the second magnet 114, so as to facilitate the winding of the binding belt 101 and can control the tightness, and further facilitate the disassembly after the operation, effectively improving the practicability of the fixing belt.

[0029] Secondly, the threaded sleeve 117 is threadedly connected with the threaded rod 118 and is sleeved on the threaded rod 118. The threaded sleeve 117 also abuts against the rotating disk 107 and is located on the other end face of the rotating disk 107. The threaded rod 118 is fixedly connected with the rectangular block 112 and is located at one end of the rectangular block 112. The mutual cooperation of the threaded sleeve 117 and the threaded rod 118 can facilitate the abutment of the rotating disk 107, so as to prevent the fixing rod 110 from accidentally slipping out of the fixing groove 115.

[0030] Thirdly, the limiting ring 119 is fixedly connected with the threaded rod 118 and is located at one end of the threaded rod 118. The limiting ring 119 can facilitate the limitation of the rotational displacement of the threaded sleeve 117, so as to prevent the threaded sleeve 117 from moving out of the threaded rod 118.

[0031] When using the present utility model to wind up the restraint belt 101, first, the collection box 109 is abutted against the lower end surface of the vertical section 104, and the opening 116 is aligned with the corresponding restraint hole 106. It should be noted that there is no substantial fixed connection between the collection box 109 and the vertical section 104, but it is only abutted against the lower end surface of the vertical section 104, so as to facilitate alignment with the corresponding restraint hole 106. By combining the two restraint belts 101 together, and then putting the restraint belt 101 into the card slot 113 through the opening 116 and the restraint hole 106, and making the first magnet 103 and the second magnet 114 adsorb, then rotating the rotating disk 107, the rotating disk 107 drives the winding roller 108 to wind up the restraint belt 101, so as to control the tightness. When the tightness is adjusted appropriately, by pushing the rotating disk 107, the two fixing rods 110 are clamped with the fixing slot 115, thus playing a fixing role. In this way, the technical problem that the two restraint belts 101 are connected by tying a slipknot is solved. Since during the operation, the restraint belt 101 may be accidentally touched, so that the restraint belt 101 is prone to form a dead knot connection, and thus it is not convenient to disassemble after the operation is solved.

[0032] The second embodiment is as follows:

[0033] On the basis of the first embodiment, please refer to Figures 6 to 7 , in which Figure 6 is the three-dimensional perspective view of the second embodiment of the present utility model, Figure 7 is of the present utility model Figure 6 The partial enlarged view at D in.

[0034] The present utility model provides a fixation belt for a tumor brachytherapy applicator, further comprising an elastic band and two soft pads 201. The elastic band comprises a burr surface 202, a fiber surface 203 and a belt body 204. The restraint belt 101 comprises a plurality of anti-slip pads 205 and a restraint belt 101 body.

[0035] For this specific embodiment, the elastic band is sleeved on the vertical section 104, and through the elastic band, it is convenient to adapt to patients of different body types to adjust the use of the plurality of restraint holes 106.

[0036] Wherein, the two soft pads 201 are respectively bonded to the horizontal section 102 and are located on the front and rear end faces of the horizontal section 102. Through the soft pads 201, it is convenient to protect the skin of the patient.

[0037] Among them, the burr surface 202 is fixedly connected to the belt body 204 and is located at one end of the belt body 204. The fiber surface 203 is fixedly connected to the belt body 204 and is located at the other end of the belt body 204. Moreover, the fiber surface 203 is also bonded to the burr surface 202 and is located above the burr surface 202. The belt body 204 is sleeved on the vertical section 104. By bonding the burr surface 202 and the fiber surface 203 to each other, it is convenient to adjust the tightness of the belt body 204.

[0038] Among them, a plurality of the anti-slip pads 205 are respectively bonded to the main body of the restraint belt 101 and are located on the front and rear end faces of the restraint belt 101. The main body of the restraint belt 101 is fixedly connected to the horizontal section 102 and is located at one end of the horizontal section 102. The anti-slip pads 205 can prevent the main body of the restraint belt 101 from accidentally sliding, thereby causing abrasions to the patient's skin.

[0039] When using the fixing belt for a tumor brachytherapy applicator in this embodiment, through the elastic band, it is convenient to adjust the plurality of restraint holes 106 for use by patients with different body types. The soft pad 201 can facilitate the protection of the patient's skin. The burr surface 202 and the fiber surface 203 are bonded to each other, which is convenient for adjusting the tightness of the belt body 204. The anti-slip pads 205 can prevent the main body of the restraint belt 101 from accidentally sliding, thereby causing abrasions to the patient's skin.

[0040] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the entire or partial processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A fixing belt for a tumor brachytherapy source applicator, comprising two restraint belts and a horizontal section. One end of each restraint belt is provided with a first magnet. A vertical section is provided on the horizontal section. A source applicator fixing opening is provided in the middle of the vertical section. The vertical section has a plurality of restraint holes. The two restraint belts are respectively fixedly connected to the horizontal section and are located at both ends of the horizontal section. It is characterized in that, it further comprises a tightening structure; The tightening structure includes a rotating disk, a winding roller and a collecting box. Two fixing rods are provided on the end face of the rotating disk. A rectangular groove is provided in the middle of the rotating disk. One end of the winding roller is provided with a rectangular block. The winding roller has a plurality of card slots. Second magnets are provided in the card slots. A plurality of fixing slots are provided on one side of the collecting box, and the plurality of fixing slots are arranged in a ring shape. An opening is provided on the end face of the collecting box. The rotating disk is slidably connected to the winding roller, and the rectangular groove is sleeved on the rectangular block. The winding roller is rotatably connected to the collecting box and is located inside the collecting box, and the rotating disk is located on one side of the collecting box. The two fixing rods are respectively clamped with the collecting box and are located in the corresponding card slots. The collecting box abuts against the lower end face of the vertical section, and the opening is aligned with the corresponding restraint hole.

2. The fixing belt for a tumor brachytherapy source applicator according to claim 1, characterized in that, The tightening structure further includes a threaded sleeve and a threaded rod. The threaded sleeve is threadedly connected to the threaded rod and is sleeved on the threaded rod. The threaded sleeve also abuts against the rotating disk and is located on the other end face of the rotating disk. The threaded rod is fixedly connected to the rectangular block and is located at one end of the rectangular block.

3. The fixing belt for a tumor brachytherapy source applicator according to claim 2, characterized in that, The tightening structure further includes a limiting ring. The limiting ring is fixedly connected to the threaded rod and is located at one end of the threaded rod.

4. The fixing belt for a tumor brachytherapy source applicator according to claim 3, characterized in that, The fixing belt for a tumor brachytherapy source applicator further includes an elastic band. The elastic band is sleeved on the vertical section.

5. The fixing belt for a tumor brachytherapy source applicator according to claim 4, characterized in that, The fixing belt for a tumor brachytherapy source applicator further includes two soft pads. The two soft pads are respectively bonded to the horizontal section and are located on the front and rear end faces of the horizontal section.

6. The fixing belt for a tumor brachytherapy source applicator according to claim 5, characterized in that, The elastic band includes a burr surface, a fiber surface and a belt body. The burr surface is fixedly connected to the belt body and is located at one end of the belt body. The fiber surface is fixedly connected to the belt body and is located at the other end of the belt body. The fiber surface is also bonded to the burr surface and is located above the burr surface. The belt body is sleeved on the vertical section.

7. The fixing belt for a tumor brachytherapy source applicator according to claim 6, characterized in that, The restraint band includes a plurality of anti-slip pads and a restraint band body. The plurality of anti-slip pads are respectively adhered to the restraint band body and are located on the front and rear end faces of the restraint band. The restraint band body is fixedly connected to the horizontal section and is located at one end of the horizontal section.

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