Head positioning frame

Abstract

The utility model relates to a head positioning frame. The device comprises a front frame and a rear frame, the front frame and the rear frame are connected through a connecting rod, and a top marking plate is arranged between the top of the front frame and the top of the rear frame; a right marking plate is arranged between the right sides of the front frame and the rear frame; a left marking plate is arranged between the right side of the front frame and the right side of the rear frame, and scales are arranged on the top marking plate, the right marking plate and the left marking plate respectively. According to the utility model, the treatment requirement of non-invasive accurate positioning of the head is met, the precision of radiotherapy equipment is improved, the injury to a patient is reduced, and the purpose of accurate radiotherapy is achieved.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a head positioning frame. Background Art

[0002] Gamma knife is a combination of stereotactic technology and radiosurgery technology. It focuses the radiation source on the patient's lesion, so that the lesion tissue near the focus is irradiated with the maximum dose, and the normal tissue is irradiated with a transient low dose, thereby killing the lesion and protecting the normal tissue, achieving the purpose of radiotherapy. With the development of radiotherapy technology, more and more people are pursuing precision radiotherapy, which can reduce the damage and side effects to the patient's normal tissue. Precision radiotherapy needs to reduce errors in all aspects, such as positioning error, setup error, planning error, equipment operation error, etc. Among them, the largest error is the positioning and setup error. The head positioning frame is used to fix the patient's position. Some of the existing head positioning frames use head nails. Although the positioning accuracy is high, it is an invasive method, which causes damage to the patient and inconveniences in life during treatment; some non-invasive positioning frames cannot accurately locate the head coordinates, resulting in large errors and affecting the accuracy of treatment.

[0003] Therefore, it is necessary to provide a new non-invasive head positioning frame to achieve the purpose of precise radiotherapy by solving the problem of accurate positioning of patients. Utility Model Content

[0004] In order to solve the above-mentioned technical problems existing in the background technology, the utility model provides a head positioning frame to realize the treatment needs of non-invasive and accurate positioning of the head, improve the accuracy of radiotherapy equipment, reduce damage to patients, and achieve the purpose of precise radiotherapy.

[0005] The technical solution of the utility model is: the utility model is a head positioning frame, which is special in that: the head positioning frame comprises a front frame and a rear frame, the front frame and the rear frame are connected by a connecting rod, a top marking plate is arranged between the tops of the front frame and the rear frame; a right marking plate is arranged between the right sides of the front frame and the rear frame; a left marking plate is arranged between the right sides of the front frame and the rear frame, and scales are arranged on the top marking plate, the right marking plate and the left marking plate respectively.

[0006] Furthermore, sleeves are arranged on the right marking plate and the left marking plate respectively.

[0007] Furthermore, there are four sleeves, which are symmetrically arranged in pairs up and down.

[0008] Furthermore, N lines are provided on the top marking plate, the right marking plate and the left marking plate.

[0009] Furthermore, there are three N lines, two of which are horizontally arranged at the top and bottom of the marking plate, and one is obliquely arranged in the middle.

[0010] Furthermore, a scale is arranged on the top of the front frame.

[0011] The utility model provides a head positioning frame, which realizes the treatment demand of non-invasive and accurate positioning of the head through N-line arrangement and sleeve setting in multiple directions of the positioning frame and marking with a positioning ruler, improves the accuracy of radiotherapy equipment, reduces damage to patients, and achieves the purpose of precise radiotherapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the "N" line of the marking plate of the utility model;

[0014] The following are the descriptions of the reference numerals:

[0015] 1. Front frame; 2. Rear frame; 3. Connecting rod; 4. Top marking plate; 5. Right marking plate; 6. Left marking plate; 7. Sleeve. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] See also Figure 1 The structure of the specific embodiment of the utility model includes a front frame 1, a rear frame 2, a connecting rod 3, a top marking plate 4, a right marking plate 5, a left marking plate 6, and a sleeve 7. The front frame 1, the top marking plate 4, the right marking plate 5, and the left marking plate 6 are respectively arranged with scales; the connecting rod 3 is connected to the front frame 1 and the rear frame 2 respectively; the top marking plate 4, the right marking plate 5, and the left marking plate 6 are arranged on the frame composed of the front frame 1, the rear frame 2 and the connecting rod 3, the top marking plate 4 is located at the top of the frame, the right marking plate 5 is located on the right side of the frame, and the left marking plate 6 is located on the left side of the frame; the right marking plate 5 and the left marking plate 6 are respectively arranged with four sleeves 7, which are symmetrically arranged in pairs.

[0018] See also Figure 2 The top marking plate 4, the right marking plate 5, and the left marking plate 6 are all provided with "N" lines. There are three N lines, two of which are provided horizontally on the upper and lower marking plates, and one is provided obliquely in the middle.

[0019] The use process of this utility model is as follows:

[0020] 1) Before treatment, clean and disinfect the head positioning frame and transport it to the CT / MRI room;

[0021] 2) In the CT room, the patient lies on the positioning bed;

[0022] 3) Install the head positioning frame onto the positioning bed;

[0023] 4) Dip the tip of the positioning ruler into the marking ink, insert it into the head positioning frame through the sleeve 7 on the right marking plate 5 and the left marking plate 6 to mark the patient's head, and record the scale degree of the ruler for use when resetting;

[0024] 5) CT / MRI localization imaging scan;

[0025] 6) Reset during treatment: The patient lies down on the positioning bed first, install the head positioning frame on the positioning bed, insert the positioning ruler into the sleeves on the right marking plate 5 and the left marking plate 6, and slightly move the patient so that the tip of the positioning ruler coincides with the head mark. Record the scale value of the ruler and compare it with the corresponding recorded value during the first positioning CT / MRI, so that the error does not exceed 0.5mm. If the deviation is too large, continue to slightly move the patient's body to make the deviation within the required range.

[0026] 7) After the reduction is completed, remove the head positioning frame and start treatment.

[0027] The technical contents not specifically described in the present utility model and the above embodiments are the same as the prior art.

[0028] The above are only specific implementation methods disclosed in the present utility model, but the protection scope of the present utility model is not limited thereto. The protection scope of the present utility model shall be based on the protection scope of the claims.

Claims

1. A head positioning frame, characterized in that: The head positioning frame includes a front frame and a rear frame, the front frame and the rear frame are connected by a connecting rod, a top marking plate is arranged between the tops of the front frame and the rear frame; a right marking plate is arranged between the right sides of the front frame and the rear frame; a left marking plate is arranged between the right sides of the front frame and the rear frame, and scales are arranged on the top marking plate, the right marking plate and the left marking plate, respectively.

2. The head positioning frame according to claim 1, characterized in that: Sleeves are arranged on the right marking plate and the left marking plate respectively.

3. The head positioning frame according to claim 2, characterized in that: There are four sleeves, which are symmetrically arranged in pairs up and down.

4. The head positioning frame according to any one of claims 1 to 3, characterized in that: The top marking plate, the right marking plate and the left marking plate are all provided with N lines.

5. The head positioning frame according to claim 4, characterized in that: There are three N lines, two of which are arranged horizontally above and below the marking plate, and one is arranged obliquely in the middle.

6. The head positioning frame according to claim 5, characterized in that: The top of the front frame is provided with a scale.

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