Fixator for gynecological tumor source applicator

Abstract

The invention discloses a fixer for a gynecological tumor source applicator, and belongs to gynecological radiotherapy equipment. Comprising a fixing assembly, a first limiting assembly and a second limiting assembly. The fixing assembly comprises a fixing band and airbags, two ends of the fixing band can be bonded, and the airbags are symmetrically arranged on the inner side of the fixing band; the first limiting assembly comprises ball seats, a limiting rod, a connecting rod and an elastic limiting pad, the two ends of the limiting rod are connected with the ball seats, the ball seats are connected with the fixing band, the connecting rod is arranged on the ball seats in a swinging mode and is perpendicular to the limiting rod, and the bottom of the connecting rod is connected with the elastic limiting pad; the second limiting assembly comprises a guide rod and a limiting support, the guide rod penetrates through the connecting rod and is connected with the fixing belt, the limiting support is in damping sliding connection with the guide rod, and the limiting support is used for limiting the elastic limiting pad. The fixing belt and the air bag are matched with each other, so that the fixator can be stably fixed to the hipbone position of a patient, and the elastic limiting pad has a limiting effect on the rod body at the tail of the source applicator.

Description

Technical Field

[0001] This invention pertains to gynecological radiotherapy equipment, and particularly relates to a fixator for a gynecological tumor applicator. Background Technology

[0002] An applicator, also known as a treatment device, is a special container pre-inserted into a body cavity, canal, or tissue to allow a radiation source to reside or move and administer treatment. Some patients require postoperative radiotherapy, which includes external beam radiation therapy and brachytherapy (intracavitary therapy). Intracavitary therapy primarily targets the primary lesion in the vagina and adjacent infiltrative areas, while external beam radiation therapy primarily targets the tumor bed, surrounding infiltrative areas, and lymphatic drainage areas. Intracavitary therapy refers to the use of intracavitary radiotherapy for tumors in the upper vagina, similar to cervical cancer. Other primary lesions can be treated with vaginal columnar applicators. Exophytic tumors can be treated with interstitial implantation irradiation, while tumors in the middle and lower vagina or lesions throughout the vagina can be treated with vaginal columnar applicator implantation irradiation.

[0003] Before treatment, a vaginal applicator is inserted into the patient's vagina. In this technique, one strap is secured to the patient's groin, and another to the back of their knee. The remaining portions of the straps are held by a nurse for additional fixation. This method relies on medical personnel, making it inconvenient to use and resulting in unstable fixation.

[0004] To address this issue, a fixator for a gynecological tumor applicator is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of inconvenience and instability in using a fixation belt to fix the applicator. This invention provides a fixator for gynecological tumor applicators that does not rely on manual fixation, has a simple structure, is easy to manufacture, improves the stability of applicator fixation, and is conducive to improving treatment accuracy.

[0006] The present invention provides a fixator for a gynecological tumor applicator, comprising a fixation component, a first limiting component, and a second limiting component.

[0007] The fixing component includes a fixing strap and an airbag. The two ends of the fixing strap can be glued together, and the airbags are symmetrically arranged on the inner side of the fixing strap. The first limiting component includes a ball seat, a limiting rod, a connecting rod, and an elastic limiting pad. The two ends of the limiting rod are connected to the ball seat, and the ball seat is connected to the fixing strap. The connecting rod is swayably disposed on the ball seat and is perpendicular to the limiting rod. The bottom of the connecting rod is connected to the elastic limiting pad. The second limiting component includes a guide rod and a limiting bracket. The guide rod passes through the connecting rod and is connected to the fixing strap. The limiting bracket is damped and slidably connected to the guide rod. The limiting bracket is used to limit the elastic limiting pad.

[0008] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator includes a first limiting member comprising a universal ball and a retaining ring. A concave hole is formed at the bottom of the ball seat, the retaining ring is disposed within the concave hole, the universal ball is disposed within the retaining ring, the universal ball is connected to the connecting rod, and the universal ball is capable of rotating within the retaining ring to allow the connecting rod to swing.

[0009] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator has a cubic structure for the ball seat.

[0010] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator includes a limiting bracket comprising a sliding rod, an extension rod, and an abutment block. Both ends of the sliding rod are slidably engaged with the guide rod. The extension rod is vertically disposed in the middle of the sliding rod, and the abutment block is disposed at the bottom of the extension rod. The abutment block is inclined in the direction close to the elastic limiting pad.

[0011] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator includes a second limiting component comprising an elastic element, one end of which is connected to the limiting rod and the other end of which is connected to the sliding block.

[0012] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator includes a fastening element, a hook and loop fastener surface, and a hook and loop fastener hook surface. One end of the fixation strap is provided with the fastening element, and the other end is provided with the hook and loop fastener surface and the hook and loop fastener hook surface respectively. The fastening element has a fastening groove.

[0013] According to an embodiment of the present invention, the fixation device for a gynecological tumor applicator includes a first limiting component comprising a positioning block and a locking block. The positioning block is disposed at the bottom of the connecting rod, and the locking block is disposed at both ends of the elastic limiting pad. The positioning block and the locking block are in contact with each other, and both the positioning block and the locking block are threadedly connected to the connecting rod.

[0014] The fixator for the gynecological tumor applicator provided according to embodiments of the present invention has at least the following beneficial effects:

[0015] This invention features a reasonable structure and is easy to use. The fixing strap and airbag work together to stably fix the device at the patient's hip bone, and it can adapt to patients of different body types. The tail of the applicator exposed outside the vagina contacts the elastic limiting pad, which limits the tail of the applicator. Simultaneously, the elastic limiting pad deforms, and the connecting rod swings towards the limiting bracket, reducing the distance between the elastic limiting pad and the limiting bracket. When the elastic limiting pad and the limiting bracket come into contact, the limiting bracket limits the applicator, preventing it from slipping out of the vagina. This gynecological tumor applicator exhibits significant fixation effect and has high clinical application value.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the fixator for the gynecological tumor applicator provided in the embodiments of this application;

[0019] Figure 2 yes Figure 1 A bottom view;

[0020] Figure 3 yes Figure 1 Side view;

[0021] Figure 4 This is a schematic diagram showing the cooperation between the fixation strap and the airbag in the fixator of the gynecological tumor applicator provided in the embodiments of this application;

[0022] Figure 5 This is a partial structural schematic diagram of the gynecological tumor applicator provided in an embodiment of this application;

[0023] Figure 6 yes Figure 5 Schematic diagram of the elastic limiting pad and locking block;

[0024] Figure 7 yes Figure 1 Schematic diagram of the middle limit bracket;

[0025] Figure 8 yes Figure 1 A cross-sectional view of the first limiting component.

[0026] Figure Labels

[0027] 100. Fixing component; 110. Fixing strap; 120. Airbag; 130. Fastener; 131. Fastening groove; 140. Velcro surface; 150. Velcro hook surface; 200. First limiting component; 210. Ball seat; 211. Concave hole; 220. Limiting rod; 230. Connecting rod; 240. Elastic limiting pad; 250. Retaining ring; 260. Universal ball; 270. Positioning block; 280. Locking block; 300. Second limiting component; 310. Guide rod; 320. Limiting bracket; 321. Sliding rod; 322. Extension rod; 323. Abutment block; 330. Elastic element. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0030] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0031] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0032] refer to Figures 1 to 5 This invention provides a fixator for a gynecological tumor applicator, comprising a fixation component 100, a first limiting component 200, and a second limiting component 300.

[0033] The fixing component 100 includes a fixing strap 110 and an airbag 120. The two ends of the fixing strap 110 can be glued together, and the airbags 120 are symmetrically arranged on the inner side of the fixing strap 110. The first limiting component 200 includes a ball seat 210, a limiting rod 220, a connecting rod 230, and an elastic limiting pad 240. The two ends of the limiting rod 220 are connected to the ball seat 210, and the ball seat 210 is connected to the fixing strap 110. The connecting rod 230 is swayably arranged on the ball seat 210, and the connecting rod 230 is perpendicular to the limiting rod 220. The bottom of the connecting rod 230 is connected to the elastic limiting pad 240. The second limiting component 300 includes a guide rod 310 and a limiting bracket 320. The guide rod 310 passes through the connecting rod 230 and is connected to the fixing strap 110. The limiting bracket 320 is damped and slidably connected to the guide rod 310. The limiting bracket 320 is used to limit the elastic limiting pad 240.

[0034] It should be noted that the fixation strap 110 is strapped to the patient's hip bone, and its position can be adjusted vertically. The two ends of the fixation strap 110 can be glued together or detached, making it easy for the patient to put on and take off. The fixation strap 110 is elastic and can wrap around the patient's body. Airbags 120 are located at both ends of the inner side of the fixation strap 110, corresponding to the patient's sides. Inflating the airbags 120 adjusts their size, allowing for appropriate adjustment based on the patient's hip circumference, ensuring reliable fixation. When inflating the airbags 120, the patient's comfort should be considered while ensuring effective fixation. The fixation strap 110 should not be too tight, causing discomfort, nor should it be too loose, preventing it from providing adequate fixation.

[0035] A limiting rod 220 is set between the two ball seats 210. The ball seats 210 and the limiting rod 220 correspond to the lower abdomen of the patient. The design of the ball seats 210 and the limiting rod 220 can keep the section of the fixation strap 110 corresponding to the position of the limiting rod 220 in an open state, which makes it convenient for the patient to wear the fixation device of this gynecological tumor applicator. The bottom of the connecting rod 230 is connected to the elastic limiting pad 240. When the patient lies flat on the operating table with their legs open, due to the special structure of the vagina, when the applicator is inserted into the patient's vagina, the applicator forms an acute angle with the operating table, that is, the applicator is tilted downwards at the front. The upper end of the tail rod of the applicator, which is tilted upwards, contacts the elastic limiting pad 240. The elastic limiting pad 240 has a limiting effect on the tail rod of the applicator. At the same time, the elastic limiting pad 240 deforms, which reduces the distance between the elastic limiting pad 240 and the limiting bracket 320. When the elastic limiting pad 240 and the limiting bracket 320 abut against each other, the limiting bracket 320 has a limiting effect on the applicator, preventing the applicator from slipping out of the vagina.

[0036] It should be understood that the spaced spacing between the limiting bracket 320 and the ball seat 210 creates an appropriate distance between the bottom of the limiting bracket 320 and the elastic limiting pad 240. When the tail rod of the applicator deforms by contacting the elastic limiting pad 240, the connecting rod 230 swings towards the limiting bracket 320, causing the elastic limiting pad 240 to abut against the limiting bracket 320. The angle between the applicator and the operating table reaches its maximum limit, thereby fixing the applicator.

[0037] According to the embodiment of the present invention, the fixation device for the gynecological tumor applicator includes a first limiting member comprising a universal ball 260 and a retaining ring 250. A concave hole 211 is provided at the bottom of the ball seat 210, and a retaining ring 250 is disposed in the concave hole 211. The universal ball 260 is disposed in the retaining ring 250. The universal ball 260 is connected to the connecting rod 230. The universal ball 260 can rotate within the retaining ring 250 to make the connecting rod 230 swing.

[0038] It should be noted that the concave hole 211 has a spherical structure. The universal ball 260 and the retaining ring 250 cooperate with the ball seat 210 to form a ball joint structure. The universal ball 260 can move within the retaining ring 250, allowing the connecting rod 230 to swing towards or away from the limiting bracket 320. This causes the elastic limiting pad 240 at the bottom of the connecting rod 230 to abut or disengage from the limiting bracket 320, thereby enabling the limiting bracket 320 to limit the tail rod of the applicator. Simultaneously, the elastic limiting pad 240 is elastic, which can reduce vibration and absorb some of the support force from the tail rod of the applicator.

[0039] The fixator for the gynecological tumor applicator provided in the embodiment of the present invention has a cube-shaped ball seat 210.

[0040] It should be noted that in this embodiment, there are two ball seats 210, which are spaced apart. The cubic structure of the ball seat 210 can better fit the concave hole 211 of the spherical structure, thus facilitating the installation of the universal ball 260 and the retaining ring 250 in the concave hole 211. The ball seat 210 corresponds one-to-one with the universal ball 260 and the connecting rod 230, so that the bottom of the connecting rod 230 can have a reliable connection and fixation effect with the two ends of the elastic limiting pad 240, maintaining the normal working state of the elastic limiting pad 240.

[0041] Furthermore, the side length of the cube-shaped ball seat 210 is the same as the width of the fixing strap 110, which saves space, reduces weight, and makes it convenient for patients to wear, thereby ensuring that medical staff can carry out surgical operations efficiently.

[0042] According to the embodiment of the present invention, the fixation device for the gynecological tumor applicator includes a limiting bracket 320 comprising a sliding rod 321, an extension rod 322, and an abutment block 323. Both ends of the sliding rod 321 are slidably engaged with the guide rod 310. The extension rod 322 is vertically arranged in the middle of the sliding rod 321. The abutment block 323 is arranged at the bottom of the extension rod 322, and the abutment block 323 is inclined in the direction close to the elastic limiting pad 240.

[0043] It should be noted that the elastic limiting pad 240 is arc-shaped, and the bottom of the limiting bracket 320 is used to limit the elastic limiting pad 240. The abutment block 323 is tilted towards the elastic limiting pad 240, which can reduce the distance between the abutment block 323 and the elastic limiting pad 240. When the elastic limiting pad 240 abuts against the abutment block 323, it is the maximum deformation degree of the elastic limiting pad 240.

[0044] refer to Figures 6 to 8 According to the embodiment of the present invention, the fixation device for the gynecological tumor applicator includes a second limiting component 300, which includes an elastic element. One end of the elastic element is connected to a limiting rod 220, and the other end is connected to a sliding block.

[0045] It should be noted that in this embodiment, the elastic element is a spring in a compressed state. The spring is set between the limiting rod 220 and the sliding block, so that the sliding block and the limiting rod 220 maintain the maximum distance. At the same time, the spring can reduce vibration, so that the limiting bracket 320 is less likely to break when limiting the applicator, thus extending the service life of the fixator of this gynecological tumor applicator.

[0046] According to the embodiment of the present invention, the fixation device for the gynecological tumor applicator includes a fixing component 100 comprising a fastening member 130, a hook and loop fastener 140 and a hook and loop fastener 150. One end of the fixing strap 110 is provided with the fastening member 130, and the other end is provided with the hook and loop fastener 140 and the hook and loop fastener 150 respectively. The fastening member 130 is provided with a fastening groove 131.

[0047] It should be understood that the fastener 130 has a fastening groove 131 for the fastening strap 110 to pass through. After the fastening strap 110 passes through the fastening groove 131, the hook and loop side 140 and the hook and loop side 150 of the hook and loop fastener are attached to each other, which can not only glue and fix the fastening strap 110, but also adjust the length of the fastening strap 110 so that the length of the fastening strap 110 can be adapted to the patient's hip circumference.

[0048] According to the embodiment of the present invention, the fixation device for the gynecological tumor applicator includes a first limiting component 200 comprising a positioning block 270 and a locking block 280. The positioning block 270 is disposed at the bottom of the connecting rod 230, and the locking block 280 is disposed at both ends of the elastic limiting pad 240. The positioning block 270 and the locking block 280 are in contact with each other, and both the positioning block 270 and the locking block 280 are threadedly connected to the connecting rod 230.

[0049] It should be understood that in this embodiment, there are four locking blocks 280. Two locking blocks 280 are provided at both ends of the elastic limiting pad 240. The two locking blocks 280 are spaced apart, and the distance between the two locking blocks 280 is just enough to place the positioning block 270. Threaded holes are provided on both the locking block 280 and the positioning block 270. Both the positioning block 270 and the locking block 280 are threadedly connected to the connecting rod 230. Since the universal ball 260 can rotate, rotating both connecting rods 230 at the same time can adjust the distance between the elastic limiting pad 240 and the ball seat 210, so that the limiting bracket 320 can be adapted to the applicator.

[0050] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fixator for a gynecological tumor applicator, characterized in that, include: A fixing component, comprising a fixing strap and an airbag, wherein the two ends of the fixing strap can be glued together, and the airbags are symmetrically arranged on the inner side of the fixing strap; The first limiting component includes a ball seat, a limiting rod, a connecting rod, and an elastic limiting pad. The two ends of the limiting rod are connected to the ball seat, the ball seat is connected to the fixing belt, the connecting rod is swayably disposed on the ball seat, and the connecting rod is perpendicular to the limiting rod. The bottom of the connecting rod is connected to the elastic limiting pad. The second limiting component includes a guide rod and a limiting bracket. The guide rod passes through the connecting rod and is connected to the fixing belt. The limiting bracket is damped and slidably connected to the guide rod. The limiting bracket is used to limit the elastic limiting pad.

2. The fixator for the gynecological tumor applicator according to claim 1, characterized in that, The first limiting component includes a universal ball and a retaining ring. A concave hole is formed at the bottom of the ball seat, the retaining ring is disposed in the concave hole, the universal ball is disposed in the retaining ring, the universal ball is connected to the connecting rod, and the universal ball can rotate within the retaining ring to make the connecting rod swing.

3. The fixator for the gynecological tumor applicator according to claim 2, characterized in that, The ball seat has a cube structure.

4. The fixator for the gynecological tumor applicator according to claim 1, characterized in that, The limiting bracket includes a sliding rod, an extension rod, and an abutment block. Both ends of the sliding rod are slidably engaged with the guide rod. The extension rod is vertically arranged in the middle of the sliding rod, and the abutment block is arranged at the bottom of the extension rod. The abutment block is inclined in the direction close to the elastic limiting pad.

5. The fixator for the gynecological tumor applicator according to claim 4, characterized in that, The second limiting component includes an elastic element, one end of which is connected to the limiting rod and the other end of which is connected to the sliding block.

6. The fixator for the gynecological tumor applicator according to claim 1, characterized in that, The fastening component includes a fastener, a hook and loop fastener surface, and a hook and loop fastener hook surface. The fastener is provided at one end of the fastening strap, and the hook and loop fastener surface and the hook and loop fastener hook surface are provided at the other end. The fastener has a fastening groove.

7. The fixator for the gynecological tumor applicator according to claim 1, characterized in that, The first limiting component includes a positioning block and a locking block. The positioning block is disposed at the bottom of the connecting rod, and the locking block is disposed at both ends of the elastic limiting pad. The positioning block and the locking block are in contact with each other, and both the positioning block and the locking block are threadedly connected to the connecting rod.

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