Mortise and tenon-joint type ear, mouth and nose-centered radiotherapy head and neck positioning negative-pressure pillow flat plate fixing frame

A technology of radiation therapy and negative pressure pillow, which is applied in the field of human body positioning devices in radiation therapy

Active Publication Date: 2017-02-01
ZHEJIANG CANCER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the disadvantages of traditional head radiotherapy positioning, and provide a precise radiothera

Method used

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  • Mortise and tenon-joint type ear, mouth and nose-centered radiotherapy head and neck positioning negative-pressure pillow flat plate fixing frame
  • Mortise and tenon-joint type ear, mouth and nose-centered radiotherapy head and neck positioning negative-pressure pillow flat plate fixing frame
  • Mortise and tenon-joint type ear, mouth and nose-centered radiotherapy head and neck positioning negative-pressure pillow flat plate fixing frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1 Mortise-and-mortise ear-mouth-nose centric radiotherapy head and neck positioning negative pressure pillow plate fixing frame

[0057] see figure 1 , figure 2 , image 3 , Figure 16 , Figure 41 and Figure 50 . The present invention is composed of five parts: a fixed base plate, a central fixation frame for craniofacial bones, a negative pressure pillow, a head membrane and an external ear hole fixer, and the five parts need to be used together.

[0058] 1. See figure 1 , image 3 , the fixed base plate is composed of headrest groove 298, head base plate 147, limit foot hole 297, shoulder base plate 290, base plate positioning hole 299, base plate composite positioning hole 301, body groove 304, body base plate 305, crotch stopper 309, base plate The slope 300 , the upper limb limiter 296 , the single locking piece locking component 289 , the expansion hole 152 and the mortise and tenon locking component 302 are composed together. The main structur...

Embodiment 2

[0077] Embodiment 2: the present invention uses method

[0078] Step One: Upper Body Restraint. Put the negative pressure head restraint into the head restraint groove 298 on the head base plate 147 . Instruct the patient to lie flat on the fixed frame so that the head and neck are tightly attached to the outer layer of the negative pressure pillow. The operating personnel stirs the dial 69 on the upper limb limiter 296, and the handle 37 moves up and down to be adjusted to a suitable position held by the patient.

[0079] The second step: crotch restriction. The operator turns the dial 69 on the crotch stopper 309, and the handle 37 moves up and down, and the handle 37 is adjusted to clamp the patient's sacrum.

[0080] Step Three: Making the Negative Pressure Headrest

[0081] Use a vacuum pump to evacuate the negative pressure pillow to a certain degree of vacuum negative pressure, so that the plastic particle balls are squeezed each other and shaped according to the pa...

Embodiment 3

[0093] Embodiment 3 uses this invention and the comparison of original (partial middle type) mode

[0094] The comparison results are shown in Table 1.

[0095] Table 1

[0096] Eccentric Formal Chinese fixed point location center right central Adjustment method Jack gear mesh Gear rack scope of application Suitable for vertical irradiation Applicable to non-vertical irradiation Ray blocking 340 degree blocking 0 degree blocking repeatability it is good it is good adjustment limit limited movement stepless movement mechanical stability few joints, simple many joints, complex mechanical error basically overcome exist Adjust dead angle exist none safety high high Ease of operation convenient convenient Force scientific Gear meshing, stable and reliable Rail sliding, stepless adjustment

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Abstract

The invention provides a mortise and tenon-joint ear, mouth and nose-centered radiotherapy head and neck positioning negative-pressure pillow flat plate fixing frame. The frame is composed of a fixing bottom plate, a cranium viscerale centered fixing frame, a negative-pressure pillow, an external ear hole fixator and a head membrane. Hard bone landmarks such as the upper limbs, crotch, occipital bone, back portions of the head and neck, nasion and facial bone of a user are braked and limited, so that final positioning can be achieved. With the frame adopted, the limiting and fixation of the head of the body of the user can be realized totally, zero displacement can be achieved or nearly realized; all shortcomings and deficiencies in a current head radiotherapy positioning structure can be eliminated. The special fixing head membrane is used in a combined manner, so that the action of the upper limbs can be limited, and braking of shoulder joints is kept, and precise positioning can be achieved. The frame is particularly suitable for radiotherapy positioning of portions such as heads, necks and spinal cords. The frame of the invention has the advantages of reasonable design, convenient operation, high safety, environmental friendliness, obvious fixation effect, high practicality and high universality.

Description

technical field [0001] The invention belongs to the technical field of human body positioning devices in radiotherapy, and relates to a mortise-and-tenon ear, mouth, and nose centering type radiotherapy head and neck positioning negative pressure pillow plate fixing frame, which is a device for precise positioning of the head and neck in radiotherapy, suitable for The overall fixation of the head and neck with large human body activities is an important part of precise positioning and implementation in modern radiation therapy. Background technique [0002] Silica gel is a highly active adsorption material, which is an amorphous substance, and its chemical formula is mSiO2 nH2O; it does not react with any substance except strong alkali and hydrofluoric acid, is insoluble in water and any solvent, and is non-toxic and tasteless. It has high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. Engineers can produce a variet...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1001A61N5/1028A61N2005/1097
Inventor 张鹏封巍
Owner ZHEJIANG CANCER HOSPITAL
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