CN217339816U - Supplementary accurate positioning device of hand and forearm tumour radiotherapy - Google Patents

Abstract

The utility model discloses an auxiliary accurate positioning device for radiotherapy of tumors of hands and small arms, which relates to the technical field of accurate positioning treatment of tumor radiotherapy, and aims to solve the problem that a standard positioning mode is lacked when radiotherapy is carried out on tumors of upper limbs in clinic, for the difficulty in positioning the hand and the forearm, the tumor displacement error in treatment is larger due to the difficulty in avoiding the movement between times and within times, the utility model comprises a fixing frame, a plastic pillow is arranged on one side of the fixing frame close to the head, a holding rod is arranged on the plastic pillow in a penetrating way, a frame with the shape matched with the shape of the fixing frame is arranged above the fixing frame in a fitting way, a thermoplastic film is clamped between the frame and the fixed frame, a plurality of through holes are arranged on the frame, the fixing frame is provided with a positioning screw hole corresponding to the through hole, and the frame penetrates through the through hole through a fixing pin and is in threaded connection with the positioning screw hole.

Description

Supplementary accurate positioning device of hand and forearm tumour radiotherapy

Technical Field

The utility model relates to a tumor radiotherapy's accurate positioning treatment technical field specifically is a supplementary accurate positioning device of hand and forearm tumor radiotherapy.

Background

The malignant tumors of limbs mainly comprise bone and soft tissue sarcomas, and have lower morbidity compared with other tumors, but have higher malignancy degree and easy metastasis, and the prognosis of patients is very poor, and the disability rate and the death rate are higher. While radiation therapy is one of the most effective treatment methods except surgery, with the development of radiotherapy technology, such as three-dimensional adaptive radiotherapy and intensity modulated adaptive radiotherapy, the requirement for positioning accuracy is higher and higher, and it is required to irradiate tumor tissues with sufficient dose as much as possible, and reduce the irradiation of normal tissues as much as possible.

When radiotherapy is carried out on upper limb tumors in clinic, a standard positioning mode is lacked, the hands and the lower arms are difficult to position, and the problem that the movement between times and within times is difficult to avoid, so that the displacement error of the tumors in treatment is large, and the prognosis of the tumors is greatly influenced is solved. Therefore, an auxiliary accurate positioning device for radiotherapy of tumors of hands and small arms is provided to meet the clinical use requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate positioner is assisted in radiotherapy of hand and forearm tumour to when carrying out the radiotherapy to the upper limbs tumour in the clinic that proposes in solving above-mentioned background art, lack normative locate mode, to hand and forearm location difficulty, the difficult motion of avoiding between the gradation and in the gradation leads to the treatment in tumour displacement error great, produces the problem of great influence to the prognosis of tumour.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a supplementary accurate positioning device of hand and forearm tumour radiotherapy, includes the mount, one side that the mount is close to the head is provided with moulds the type and ties up, it is provided with the holding rod to mould to tie up to run through on the type, the top laminating of mount is provided with the frame that its shape agrees with mutually, the clamp is provided with thermoplastic film between frame and the mount, be provided with a plurality of through-holes on the frame, be provided with the location screw that corresponds with the through-hole on the mount, the frame runs through-hole and location screw threaded connection through the fixed pin.

Preferably, the through holes and the positioning screw holes are uniformly distributed on the frame and the fixing frame.

Preferably, be provided with fixed establishment between holding rod and the mount, fixed establishment includes the intubate, the fixed one side that is close to the mount at the holding rod that sets up of intubate, the intubate is pegged graft mutually with the mount through the jack that sets up on the mount, symmetrical sliding connection has two bayonet locks on the lateral wall of intubate, the inner of bayonet lock is provided with the spring, the outer end of bayonet lock is through setting up draw-in groove and the mount activity joint at the jack inner wall.

Preferably, the bayonet lock is arranged in the inside one end of intubate and all is provided with the arch, the arch inlays to establish the both ends that are fixed in the spring.

Preferably, one end of the bayonet lock, which is arranged outside the insertion tube, is a spherical surface, and the upper side and the lower side of the inner wall of the bayonet lock are inclined planes.

Compared with the prior art, the beneficial effects of the utility model are that: this supplementary accurate positioning device of hand and forearm tumour radiotherapy, through the handheld holding rod of patient to cooperation mould pillow and the fixed of thermoplastic film adversary and forearm, the stable fixed patient suffers from the side hand or forearm of accessible unified mode, reduces the involuntary motion such as arm rotation, displacement among the patient treatment process, has improved the repeatability of patient's pendulum position, reduces the error in the branch and between the branch, can protect normal tissue to a great extent when giving the irradiation of tumour tissue capacity to improve tumour treatment's gain ratio.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 2;

FIG. 3 is a schematic view of the partial cross-sectional structure of FIG. 1;

fig. 4 is a partially enlarged schematic view of fig. 3.

In the figure: 1. the fixing frame, 2, the holding rod, 3, the plastic pillow, 4, the frame, 5, the thermoplastic film, 6, the through hole, 7, the positioning screw hole, 8, the fixed pin, 9, the intubate, 10, the jack, 11, the bayonet lock, 12, the draw-in groove, 13, the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known by the technical manual or by the conventional experimental method.

Referring to fig. 1-4, the present invention provides a technical solution: an auxiliary accurate positioning device for radiotherapy of tumors of hands and small arms comprises a fixed frame 1, wherein the fixed frame 1 is made of carbon fiber, one side of the fixed frame 1 close to the head is provided with a plastic pillow 3, the plastic pillow 3 can support and hold the hands and small arms of a patient and can improve the comfort of the patient, a holding rod 2 is arranged on the plastic pillow 3 in a penetrating way, the hands of the patient can be held on the holding rod 2 and then fixed through the arrangement of the holding rod 2, the rotation of the arms of the patient in the treatment process is favorably reduced, a frame 4 with a matched shape is arranged above the fixed frame 1 in a laminating way, a thermoplastic film 5 is arranged between the frame 4 and the fixed frame 1 in a clamping way, the frame 4 can fix the thermoplastic film 5, wherein the thermoplastic film 5 can rigidly fix the hands and small arms of the patient, the frame 4 is provided with a plurality of through holes 6, the fixed frame 1 is provided with positioning screw holes 7 corresponding to the through holes 6, the frame 4 penetrates through the through hole 6 through the fixing pin 8 and is in threaded connection with the positioning screw hole 7, and the frame 4 and the fixed frame 1 can be fixed through the fixing pin 8.

It is specific, at first fix frame 4 and mount 1 with fixed pin 8 during patient location, the patient lies prostrate on mount 1 this moment, the patient will suffer from the side arm and grasp holding rod 2, can fix the arm that suffers from the side through moulding pillow 3, it is fixed with mount 1 to suffer from the limb through thermoplastic film 5 at last, form rigid connection, so that follow-up operation, through fixing suffering from side hand or forearm to the patient, the cylindrical pole of crouching of patient is natural functional position, patient's travelling comfort has very big improvement than the compulsory position, the pendulum position repeatability is high, can improve radiotherapy preoperative preparation efficiency and radiotherapy process form maintainability.

It should be noted that the shaping pillow 3 can be directly fixed on the fixing frame 1, and can also be fixed with the fixing frame 1 by means of a hook-and-loop fastener or a snap fastener. The present application is not particularly limited thereto.

In a preferred embodiment, the through holes 6 and the positioning screw holes 7 are uniformly distributed on the frame 4 and the fixing frame 1.

Specifically, the positioning screw holes 7 and the through holes 6 are uniformly distributed, so that the frame 4 and the fixing frame 1 are more stably and firmly connected, and meanwhile, the fixing stability of the hand and the forearm of the patient can be improved.

As the preferred embodiment, a fixing mechanism is arranged between the holding rod 2 and the fixing frame 1, the fixing mechanism comprises an insertion tube 9, the insertion tube 9 is fixedly arranged on one side, close to the fixing frame 1, of the holding rod 2, the insertion tube 9 is inserted into the fixing frame 1 through an insertion hole 10 formed in the fixing frame 1, two clamping pins 11 are symmetrically and slidably connected to the side wall of the insertion tube 9, a spring 13 is arranged at the inner end of each clamping pin 11, and the outer end of each clamping pin 11 is movably clamped with the fixing frame 1 through a clamping groove 12 formed in the inner wall of the insertion hole 10.

Specifically, 9's of intubate external diameter agrees with mutually with the internal diameter of jack 10, when 9 inserts in the jack 10 of intubate, gives 11 outside power of both sides bayonet lock through spring 13 for bayonet lock 11 can be embedded into in the draw-in groove 12, when 2 reverse atress of holding rod, then can extract the jack with 9 intubate, and then be convenient for carry out the dismouting to holding rod 2, promote the use convenience.

In a preferred embodiment, the bayonet 11 is provided with a protrusion 14 at one end thereof disposed inside the insertion tube 9, and the protrusion 14 is embedded and fixed at both ends of the spring 13.

Specifically, the protrusion 14 is cylindrical, and when the protrusion is embedded into two sides of the spring 13, the protrusion can limit the spring 13, so that the spring 13 is not easily separated from the bayonet 11.

In a preferred embodiment, the bayonet 11 is disposed outside the insertion tube 9, and has a spherical end, and the upper and lower sides of the inner wall of the bayonet 12 are both inclined surfaces.

Specifically, the clamping pin 11 and the clamping groove 12 can be conveniently separated or embedded by the design, so that the movable connection of the holding rod 2 and the fixed frame 1 is realized.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

The utility model discloses a working process and theory of operation: during the use, at first fix frame 4 and mount 1 with fixed pin 8, the patient lies prostrate on mount 1 this moment, the patient will suffer from the side arm and grasps holding rod 2, can fix the arm that suffers from the side through moulding pillow 3, will suffer from the limb and mount 1 through thermoplastic film 5 at last and fix, form rigid connection, and then realize suffering from the fixed of side hand and forearm to the patient, so that follow-up operation, and, can realize fixing or separating between holding rod 2 and the mount 1 through rigid drawing or pushing down, promote the convenience of use greatly, and is suitable for being generalized to use.

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

Claims (5)

1. The utility model provides a supplementary accurate positioning device of hand and forearm tumour radiotherapy which characterized in that: including mount (1), one side that mount (1) is close to the head is provided with moulds type pillow (3), it is provided with holding rod (2) to mould to run through on type pillow (3), the top laminating of mount (1) is provided with frame (4) that its shape agrees with mutually, the clamp is provided with thermoplastic film (5) between frame (4) and mount (1), be provided with a plurality of through-holes (6) on frame (4), be provided with location screw (7) that correspond with through-hole (6) on mount (1), through-hole (6) and location screw (7) threaded connection are run through fixed pin (8) in frame (4).

2. The auxiliary precise positioning device for radiation therapy of tumors of hand and small arm as claimed in claim 1, wherein: the through holes (6) and the positioning screw holes (7) are uniformly distributed on the frame (4) and the fixing frame (1).

3. The auxiliary precise positioning device for radiation therapy of tumors of hand and small arm as claimed in claim 1, wherein: be provided with fixed establishment between holding rod (2) and mount (1), fixed establishment includes intubate (9), intubate (9) are fixed to be set up in one side that holding rod (2) is close to mount (1), intubate (9) are pegged graft mutually with mount (1) through jack (10) that sets up on mount (1), symmetrical sliding connection has two bayonet locks (11) on the lateral wall of intubate (9), the inner of bayonet lock (11) is provided with spring (13), the outer end of bayonet lock (11) is through setting up draw-in groove (12) and mount (1) activity joint at jack (10) inner wall.

4. The auxiliary precise positioning device for radiotherapy of tumors of hand and small arm as claimed in claim 3, wherein: bayonet lock (11) are arranged in inside one end of intubate (9) and all are provided with arch (14), arch (14) are inlayed and are established the both ends that are fixed in spring (13).

5. The auxiliary precise positioning device for radiotherapy of tumors of hand and small arm as claimed in claim 4, wherein: one end of the bayonet pin (11) arranged outside the insertion pipe (9) is a spherical surface, and the upper side and the lower side of the inner wall of the bayonet groove (12) are inclined planes.

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