Fixing device suitable for lower limb tumor radiotherapy

Abstract

The utility model aims to provide a fixing device suitable for lower limb tumor radiotherapy, which relates to the technical field of medical instruments, and is suitable for patients with different leg lengths by controlling the distance between an adjusting bracket on an adjusting plate and the tail end of a bed body through the telescopic installation of the adjusting plate at the tail end of the bed body. The height and the position of the bracket can be controlled and adjusted through stretching and transverse sliding of the telescopic rod, and the legs and the feet of a patient are flexibly supported and fixed according to the radiotherapy body position requirement; the legs of a patient are clamped and fixed through the fixing plate slidably arranged on the adjusting base, the adjusting base slides through an arc line, the legs and the feet of the patient are made to deflect, slight extroversion or introversion is achieved, the inner sides or the outer sides of the legs of the patient are exposed, the radiotherapy effect is improved, and scales are arranged on the telescopic rod in the telescopic direction of the telescopic rod, so that the radiotherapy effect is improved. Scales are arranged at one end of the adjusting base in the sliding direction of the adjusting base, and scales are arranged on the edge of the arc-shaped groove, so that the repeatability of the radiotherapy body position is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field related to medical devices, and in particular to a fixing device suitable for radiotherapy of lower limb tumors. Background Art

[0002] During the whole radiotherapy process, patients undergoing precision radiotherapy usually need to undergo about 25 radiotherapy sessions. To ensure the comfort and repeatability of the patient's position during each treatment, as well as the feasibility of the incident angle design of the radiotherapy plan, the fixation of lower limb tumor radiotherapy is particularly important. For patients with lower limb tumors, due to the specific location and rarity of their tumors, there are currently few commercial lower limb-based radiotherapy fixation devices in clinical use. Foam glue, vacuum pads, T-shoes and other fixation devices are often used to fix the lower limbs in clinical practice. However, such fixation devices are not specifically designed for patients undergoing radiotherapy for lower limb tumors, and there are problems such as uncomfortable fixed positions and poor repeatability during use.

[0003] The utility model patent with publication number CN213964849U discloses a positioning and fixing device for radiotherapy of lower limb tumors, including a base, a pad, a motor, a screw, a sleeve, a pillar, a first support plate, a limit groove, a mounting plate, a fastening screw, a second support plate, a sliding rod, a connecting rod, a groove, a support plate, a limit hole, a bolt, a third support plate, a strap and Velcro.

[0004] The prior art preliminarily fixes the patient's foot and leg through the movable first support plate and the cooperation between the second support plate and the third support plate. The straps and Velcro provided on the top of the first support plate can well fix the patient's foot again. The tightening screws make the mounting plate more secure. The motor drives the screw rod to rotate, so that the sleeve can drive the first support plate at the top of the pillar to move horizontally. The cooperation between the bolts and the limiting holes on the third support plate and the support plate enables the third support plate to be positioned and moved horizontally to meet the needs of different groups of people. However, the following problems still exist:

[0005] The prior art (CN213964849U) positioning and fixing device for radiotherapy of lower limb tumors has insufficient adjustability, resulting in poor repeatability of fixed position. It can only be adjusted laterally to adapt to the leg length of different patients, but cannot adjust the height of the raised legs, and cannot deflect the legs. It is inconvenient to irradiate the inner and outer sides of the legs during radiotherapy, resulting in a weakened radiotherapy effect. Utility Model Content

[0006] In view of the deficiencies of the prior art, the present invention provides the following technical solutions:

[0007] A fixing device suitable for radiotherapy of lower limb tumors comprises a bed body, on which a plurality of adjustment brackets are arranged according to the anatomical structure of the human body, the rear end of the bed body is bent downward into a Z-shaped structure, and an adjustment plate is telescopically installed on the rear end of the bed body, the adjustment brackets are slidably installed on the rear end of the bed body and the adjustment plate, respectively, an arc groove is transversely provided on the rear end of the bed body and the adjustment plate, the adjustment bracket slides in an arc transversely along the arc groove, the adjustment bracket comprises a telescopic rod, an arc base and an adjustment base, the arc base is fixedly installed on the telescopic rod, the adjustment base is slidably connected to the arc base and slides along the surface arc of the arc base, two fixing plates are slidably arranged on the adjustment base, bolts are threadedly connected on both sides of the adjustment base, the fixing plate is rotatably connected to the bolts, and the fixing plate is controlled to slide on the adjustment base by tightening the bolts.

[0008] Furthermore, the lower end of the telescopic rod slides along the arc groove by arranging a sliding block, and an extension plate is arranged on the telescopic rod, and bolts are arranged on the extension plate to limit the sliding of the telescopic rod.

[0009] Furthermore, a first arc-shaped sliding groove is provided on the surface of the arc-shaped base, and the adjusting base is located in the first sliding groove and slides in an arc, and the sliding of the adjusting base is limited by arranging bolts on the arc-shaped base.

[0010] Furthermore, the telescopic rod is provided with a scale along its telescopic direction, one end of the adjustment base is provided with a scale along its sliding direction, and the edge of the arc groove is provided with a scale.

[0011] Furthermore, a thermoplastic film and a pillow are arranged on the bed according to the anatomical structure of the human body.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The utility model lies flat on the bed body when in use, and the patient's legs are fixed by the adjustment bracket on the bed body. The adjustment plate is telescopically installed on the rear end of the bed body, so as to control the distance between the adjustment bracket on the adjustment plate and the rear end of the bed body, so as to adapt to patients with different leg lengths; an arc groove is transversely provided on the rear end of the bed body and the adjustment plate, and the telescopic rod of the adjustment bracket is slidably installed in the arc groove, and the height and position of the adjustment bracket can be controlled by the telescopic and sliding of the telescopic rod, so as to flexibly support and fix the patient's legs and feet according to the needs of the radiotherapy position; an adjustment base is slidably arranged on the arc base of the adjustment bracket, so that the adjustment base slides along the surface arc of the arc base, and the patient's legs and feet are clamped and fixed by the fixing plate slidably arranged on the adjustment base, and the patient's legs and feet are deflected by sliding the adjustment base along the arc, so as to realize slight valgus or inversion to expose the inner side or outer side of the patient's legs, so as to improve the radiotherapy effect, and a scale is arranged on the telescopic rod along the telescopic direction thereof, and a scale is arranged on one end of the adjustment base along the sliding direction thereof, and a scale is arranged on the edge of the arc groove, so as to enhance the repeatability of the radiotherapy position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a partial enlarged schematic diagram of the tail end of the bed body of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the adjusting bracket of the utility model;

[0017] Figure 4 This is a schematic diagram of the front view structure of the adjusting bracket of the utility model;

[0018] Figure 5 This is a side view structural diagram of the adjusting bracket of the utility model;

[0019] Figure 6 It is a partial cross-sectional structural schematic diagram of the adjusting bracket of the utility model.

[0020] In the figure: bed body-1, pillow-101, adjustment plate-102, thermoplastic film-2, arc groove-3, bolt-4, adjustment bracket-5, telescopic rod-501, extension plate-5011, arc base-502, first slide groove-5021, adjustment base-503, second slide groove-5031, fixing plate-504. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-6 A fixing device suitable for radiotherapy of lower limb tumors comprises a bed 1, on which a thermoplastic film 2, a pillow 101 and a plurality of adjustment brackets 5 are arranged according to the anatomical structure of the human body, the tail end of the bed 1 is bent downward into a Z-shaped structure, and an adjustment plate 102 is telescopically installed at the tail end of the bed, and the adjustment brackets 5 are slidably installed on the tail end of the bed 1 and the adjustment plate 102 respectively;

[0024] In this embodiment, when in use, the patient lies flat on the bed 1, and the patient's legs are fixed by the adjustment bracket 5 on the bed 1. The adjustment plate 102 is telescopically installed on the rear end of the bed 1 to control the distance between the adjustment bracket 5 on the adjustment plate 102 and the rear end of the bed 1, so as to adapt to patients with different leg lengths. The patient's calf position is fixed by the adjustment bracket 5 at the rear end of the bed 1, and the patient's heel position is supported and fixed by the adjustment bracket 5 on the adjustment plate 102. After fixation, the patient's thigh and calf are further fixed by the thermoplastic film 2. The adjustment bracket 5 at the rear end of the bed 1 can also be omitted, and the patient's calf can be directly fixed by the thermoplastic film 2, and the patient's heel position is supported and fixed by the adjustment bracket 5 on the adjustment plate 102.

[0025] Embodiment 2:

[0026] See also Figure 1-6 According to Example 1, the tail end of the bed body 1 and the adjustment plate 102 are both provided with an arc groove 3 in a transverse direction, and the adjustment bracket 5 slides in an arc shape in a transverse direction along the arc groove 3, so that the position of the adjustment bracket 5 can be adjusted more flexibly according to the needs of the lower limb radiotherapy position;

[0027] The adjusting bracket 5 comprises a telescopic rod 501, an arc-shaped base 502 and an adjusting base 503. The arc-shaped base 502 is fixedly mounted on the telescopic rod 501. The adjusting base 503 is slidably connected with the arc-shaped base 502 and slides along the arc line of the surface of the arc-shaped base 502. A first arc-shaped sliding groove 5021 is provided on the surface of the arc-shaped base 502. The adjusting base 503 slides in the first sliding groove 5021 and limits the adjustment base 503 by setting a bolt 4 on the arc-shaped base 502. Sliding, two fixing plates 504 are slidingly arranged on the adjusting base 503, and the two sides of the adjusting base 503 are threadedly connected with bolts 4, and the fixing plates 504 are rotatably connected with the bolts 4. By tightening the bolts 4, the fixing plates 504 are controlled to slide on the adjusting base 503 to clamp and fix the patient's feet. The lower end of the telescopic rod 501 slides along the arc groove 3 by setting a slider, and an extension plate 5011 is set on the telescopic rod 501. By setting bolts 4 on the extension plate 5011, the sliding of the telescopic rod 501 is limited;

[0028] In this embodiment, the telescopic rod 501 is provided with scales along its telescopic direction, one end of the adjustment base 503 is provided with scales along its sliding direction, and the edge of the arc groove 3 is provided with scales;

[0029] In this embodiment, an arc groove 3 is transversely provided on the rear end of the bed body 1 and the adjustment plate 102, and the telescopic rod 501 of the adjustment bracket 5 is slidably installed in the arc groove 3. The height and position of the adjustment bracket 5 can be controlled by the extension and sliding of the telescopic rod 501, and the patient's legs can be flexibly supported and fixed according to the needs of the radiotherapy position; an adjustment base 503 is slidably set on the arc base 502 of the adjustment bracket 5, so that the adjustment base 503 slides along the surface arc of the arc base 502, and the patient's legs are clamped and fixed by the fixing plate 504 slidably set on the adjustment base 503, and the patient's legs are deflected by sliding the adjustment base 503 along the arc, so as to achieve slight valgus or inversion to expose the inner or outer side of the patient's legs, thereby improving the radiotherapy effect.

[0030] Embodiment 3:

[0031] See also Figure 1-6 According to Example 2, a scale is set on the telescopic rod 501 along its telescopic direction, a scale is set on one end of the adjustment base 503 along its sliding direction, and a scale is set on the edge of the arc groove 3, so that the shape and position of the adjustment bracket 5 can be recorded to enhance the repeatability of the radiotherapy position.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixing device suitable for radiotherapy of lower limb tumors, comprising a bed, on which a plurality of adjustment brackets are arranged according to the anatomical structure of the human body, and the tail end of the bed is bent downward into a Z-shaped structure, characterized in that: The adjusting plate is telescopically installed at the rear end of the bed body, and the adjusting bracket is slidably installed on the rear end of the bed body and the adjusting plate respectively. The rear end of the bed body and the adjusting plate are both laterally provided with arc grooves, and the adjusting bracket slides laterally in an arc along the arc groove. The adjusting bracket includes a telescopic rod, an arc base and an adjusting base, and the arc base is fixedly installed on the telescopic rod. The adjusting base is slidably connected to the arc base and slides along the surface arc of the arc base. Two fixing plates are slidably arranged on the adjusting base, and bolts are threaded on both sides of the adjusting base. The fixing plate is rotatably connected to the bolts, and the fixing plate is controlled to slide on the adjusting base by tightening the bolts.

2. A fixation device suitable for radiotherapy of lower limb tumors according to claim 1, characterized in that: The lower end of the telescopic rod slides along the arc groove by arranging a sliding block, and an extension plate is arranged on the telescopic rod. Bolts are arranged on the extension plate to limit the sliding of the telescopic rod.

3. A fixation device suitable for radiotherapy of lower limb tumors according to claim 1, characterized in that: An arc-shaped first sliding groove is provided on the surface of the arc-shaped base, and the adjusting base is located in the first sliding groove and slides in an arc line. Bolts are arranged on the arc-shaped base to limit the sliding of the adjusting base.

4. A fixation device suitable for radiotherapy of lower limb tumors according to claim 1, characterized in that: The telescopic rod is provided with scales along its telescopic direction, one end of the adjustment base is provided with scales along its sliding direction, and the edge of the arc groove is provided with scales.

5. A fixation device suitable for radiotherapy of lower limb tumors according to claim 1, characterized in that: The bed body is provided with a thermoplastic film and a pillow according to the anatomical structure of the human body.

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