CN211461826U

CN211461826U - Rotary drum structure applied to three-dimensional directional head gamma knife

Info

Publication number: CN211461826U
Application number: CN201922492021.0U
Authority: CN
Inventors: 宁武平
Original assignee: Shanghai Gamastar Technology Development Co ltd
Current assignee: Shanghai Gamastar Technology Development Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-11
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a be applied to rotatory cylinder structure of three-dimensional directional head gamma sword, including the cylinder body the inside cavity of cylinder body, first opening has been seted up on the terminal surface of cylinder body one end, the second opening has been seted up on the outer periphery of cylinder body, the slope of second mouth sets up on the cylinder body. The outer peripheral surface of the roller body is provided with an inclined opening surface, and the second opening is formed in the inclined opening surface. The diameter of the roller body is gradually reduced from the first opening end to the other end, and the roller body is contracted and folded at the other end of the roller body; the utility model provides an among the cylinder structure, install treatment head in the second opening, because the slope of second opening sets up at the cylinder originally, because the utility model discloses only to head gamma sword treatment, the effectual distance of shortening radiation source ray export focus point of the mode that the slope set up, indirect extension the life of radiation source, perhaps reduce the use dose of radiation source, practiced thrift the cost.

Description

Rotary drum structure applied to three-dimensional directional head gamma knife

Technical Field

The utility model belongs to the technical field of the medical treatment radiation, concretely relates to be applied to rotary drum structure of three-dimensional directional head gamma sword.

Background

Before the gamma knife treatment device is used, the specific position of the head tumor of the patient relative to the wound positioning device needs to be determined through other examination imaging equipment, so that the head of the patient is fixed according to the specific position of the head tumor of the patient on the wound positioning device. The gamma knife treatment is divided into head gamma knife treatment and body gamma knife treatment. The gamma knife therapy for head is carried out by installing multiple cobalt sources in a spherical helmet, focusing the cobalt sources at a certain point in the cranium, and forming a narrow-beam gamma ray with sharp edge. When in treatment, narrow beams of rays are converged on the focus to form a limited high-dose area to destroy the focus, and the method is mainly used for treating intracranial small tumors and functional diseases. The body part gamma knife therapy is mainly used for treating various tumors of the whole body.

The current clinical head gamma knife is divided into two types: the radiation source is fixed and non-rotatable equipment and the radiation source is focused in a single rotation mode, the rotary focusing equipment has the characteristic of well protecting normal tissues, the side reaction of treatment is light, the radiation emitted from the treatment head in the existing gamma knife is vertical to the central axis of the roller, the distance from the ray outlet of the radiation source to the focusing point is the source focal length, and the vertical radiation irradiation mode needs the treatment head to have a certain space distance with a patient directly, so that the space volume of the gamma knife equipment is increased; in addition, the longer the source focal length, the more radioactive source metrology is required, which virtually increases the cost of purchasing radioactive sources.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a simple structure, can effectively shorten the rotatory cylinder structure of being applied to three-dimensional orientation head gamma sword of source focus.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the rotary drum structure applied to the three-dimensional orienting head gamma knife comprises a drum body, wherein the drum body is hollow, a first opening is formed in the end face of one end of the drum body, a second opening is formed in the outer periphery of the drum body, the second opening is obliquely formed in the drum body, and the second opening is used for installing a treatment head.

Furthermore, an inclined opening surface is formed in the peripheral surface of the roller body, and the second opening is formed in the inclined opening surface.

Furthermore, an included angle alpha is formed between the bevel opening surface and the central axis of the roller body, wherein the included angle alpha is more than or equal to 15 degrees and less than or equal to 85 degrees.

Further, α is 24 °, 36 °, or 45 °.

Further, the diameter of the roller body is gradually reduced from the first opening end to the other end, and the roller body is contracted and folded at the other end of the roller body.

Furthermore, a circle of trapezoidal steps is arranged on the circumferential surface of the second opening.

Furthermore, the other end of the roller body is provided with a rotating shaft.

Further, still include the base, rotatory cylinder rotates and sets up on the base.

The utility model adopts the above technical scheme, first opening has been seted up on the terminal surface of cylinder body one end, the second opening has been seted up on cylinder body's the outer periphery, the slope of second mouth sets up cylinder body is last, the second opening is used for installing the treatment head. The outer peripheral surface of the roller body is provided with an inclined opening surface, and the second opening is formed in the inclined opening surface. The included angle between the bevel face and the central axis of the roller body is more than or equal to 15 degrees and less than or equal to 85 degrees; for current vertically radioactive ray irradiation mode, the utility model provides an among the cylinder structure, install the treatment head in the second opening, because the slope of second opening sets up at the cylinder originally, because the utility model discloses only to the treatment of head gamma sword, the effectual distance of shortening radiation source ray export focus point of the mode that the slope set up, the indirect life who has prolonged the radiation source, perhaps reduce the use dose of radiation source, practiced thrift the cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a rotary drum according to the present invention;

FIG. 2 is a second schematic view of the structure of the rotary drum of the present invention;

FIG. 3 is a sectional view of the rotary drum of the present invention;

fig. 4 is a schematic view of the structure of the rotary drum of the present invention installed on the base.

In the figure: 1. a drum body; 2. a first opening; 3. a second opening; 4. a bevel face; 5. a trapezoidal step; 6. a rotating shaft; 7. a base; 8. a trapezoidal step; alpha, the inclined opening surface and the central axis of the roller body form an included angle.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

As shown in fig. 1, 2 and 3, the present embodiment provides a rotary drum structure applied to a three-dimensional directional head gamma knife, which includes a drum body, the drum body is hollow, a first opening is disposed on an end surface of one end of the drum body, a second opening is disposed on an outer periphery of the drum body, the second opening is obliquely disposed on the drum body, and the second opening is used for mounting a treatment head.

As shown in fig. 2 and 3, in the rotary drum structure provided in this embodiment, a bevel surface is opened on the outer circumferential surface of the drum body, and the second opening is opened on the bevel surface. The bevel face and the central axis of the roller body form an included angle alpha, wherein the alpha is more than or equal to 15 degrees and less than or equal to 85 degrees. Preferably, α is 24 °, 36 ° or 45 °.

In a preferred embodiment, the diameter of the roller body is gradually reduced from the first opening end to the other end, and the roller body is contracted and folded at the other end of the roller body. As shown in fig. 3, a circle of trapezoidal steps is provided on the circumferential surface of the second opening. The ladder-shaped steps are mainly convenient for installing the treatment head.

As a preferred embodiment, as shown in fig. 4, the other end of the roller body is provided with a rotation shaft in this embodiment. This embodiment still includes the base, and rotatory cylinder rotates the setting on the base. As shown in fig. 4, two ends of the base provided by this embodiment respectively extend upward to form a pair of brackets, and two ends of the roller body are correspondingly rotatably disposed on the brackets.

The utility model adopts the above technical scheme first opening has been seted up on the terminal surface of the one end of cylinder body, the bevel connection face has been seted up on the outer peripheral face of cylinder body, the bevel connection face forms the second opening that is used for installing the treatment head. The included angle between the bevel face and the central axis of the roller body is more than or equal to 15 degrees and less than or equal to 85 degrees; for current vertically radioactive ray irradiation mode, the utility model provides an among the cylinder structure, install the treatment head in the second opening, because the slope of second opening sets up at the cylinder originally, because the utility model discloses only to the treatment of head gamma sword, the effectual distance of shortening radiation source ray export focus point of the mode that the slope set up, the indirect life who has prolonged the radiation source, perhaps reduce the use dose of radiation source, practiced thrift the cost.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a be applied to rotatory cylinder structure of three-dimensional orientation head gamma sword which characterized in that: the roller comprises a roller body, the roller body is hollow, a first opening is formed in the end face of one end of the roller body, a second opening is formed in the outer periphery of the roller body, the second opening is obliquely formed in the roller body, and the second opening is used for installing a treatment head.

2. The rotary drum structure for a stereotactic head gamma knife as claimed in claim 1, wherein: the outer peripheral surface of the roller body is provided with an inclined opening surface, and the second opening is formed in the inclined opening surface.

3. The rotary drum structure for a stereotactic head gamma knife as claimed in claim 2, wherein: the bevel face and the central axis of the roller body form an included angle alpha, wherein the alpha is more than or equal to 15 degrees and less than or equal to 85 degrees.

4. The rotary drum structure for a stereotactic head gamma knife as in claim 3, wherein: the α is 24 °, 36 ° or 45 °.

5. The rotary drum structure for a stereotactic head gamma knife as claimed in claim 1, wherein: the diameter of the roller body is gradually reduced from the first opening end to the other end, and the roller body is contracted and folded at the other end of the roller body.

6. The rotary drum structure for a stereotactic head gamma knife according to any of claims 1 to 5, wherein: and a circle of trapezoidal steps is arranged on the circumferential surface of the second opening.

7. The rotary drum structure for a stereotactic head gamma knife according to any of claims 1 to 5, wherein: the other end of the roller body is provided with a rotating shaft.

8. The rotary drum structure for a stereotactic head gamma knife as in claim 6, wherein: the rotary drum is rotatably arranged on the base.