Radioactive seed loading platform

Abstract

The present application relates to a radioactive seed loading platform, including a loading base and a column. The loading base is a column structure, and a concave seed receiving portion is provided on the top of the loading base. The column is installed on the top of the loading base, and a guide filling groove is provided on the column toward the center side of the loading base. The guide filling groove is gradually inclined from top to bottom along the top edge of the loading base toward the top center direction, and an elastic limiting protrusion is arranged in the guide filling groove. The seed receiving portion is convenient for medical personnel to grab seeds conveniently and quickly during experiments or operations; the column with the guide filling groove can fix the seed bin body, which is convenient for medical personnel to fill seeds from top to bottom with a seed holder; the structure of the filling groove tilting from top to bottom toward the center of the base is ergonomic, making the design of the loading platform more humane, and at the same time can guide the seeds that may fall off to the concave receiving portion, effectively preventing the seeds from collapsing due to instability during the seed filling process.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a radioactive seed loading station. Background Art

[0002] At present, with the advancement of science and technology, radiotherapy is performed on tumors by implanting radioactive seeds. Radiation induces DNA damage in cancer cells, causing the cancer cells to die. Radioactive seed implantation therapy has the advantages of being minimally invasive, gradual, highly effective, and having few side effects.

[0003] However, researchers in this field conducted simulation experiments in a close-range grain radiation cell damage test device. Although the existing loading platform can facilitate the storage and access of radioactive grains, the grain bin equipment used for storing and accessing the grains has nowhere to be placed at ordinary times, and the radiation risk caused by the falling seeds cannot be effectively avoided. There is a lack of a grain loading platform with a simple structure that is compatible with the grain bin and can receive the fallen seeds. Summary of the invention

[0004] In view of this, the present application proposes a radioactive grain loading platform, characterized in that it includes a loading base and a column; the loading base is a columnar structure, and an inwardly concave grain receiving portion is provided on the top of the loading base; the column is installed at the top of the loading base near the edge or at the edge position, and the column is provided with a guide filling groove on the side toward the center of the loading base, which is suitable for matching with the structure of the grain bin body; the guide filling groove gradually inclines from top to bottom along the top edge of the loading base toward the top center direction, and the lower notch of the guide filling groove is located above the grain receiving portion, and an elastic limiting protrusion is provided in the guide filling groove, which is suitable for fixing the grain bin body.

[0005] In a possible implementation, the bottom and top of the seed receiving portion are both circular and concentrically arranged, and the inner side wall of the seed receiving portion is an inclined arc surface; the bottom of the seed receiving portion is a horizontal plane, and the bottom radius of the seed receiving portion is smaller than the top radius of the seed receiving portion.

[0006] In a possible implementation, the column is a cylinder, and the bottom structure of the column has an inclined surface, the bottom inclined surface of the column matches a partial side wall structure of the grain and seed receiving portion, and the column is fixedly arranged on the inner wall of the grain and seed receiving portion; the loading base is a cylindrical structure.

[0007] In a possible implementation, the top of the column has a first beveled surface toward the center of the loading base, and the guide filling groove is opened in the middle of the first beveled surface; the top of the column has a second beveled surface away from the center of the loading base, and the second beveled surface is perpendicular to the first beveled surface.

[0008] In one possible implementation, the elastic limiting protrusion includes a spherical part and a return spring; the column is provided with a pre-opening in the guide filling groove, and the spherical part and the return spring are installed in the pre-opening together; wherein, one end of the return spring away from the guide filling groove is fixed in the pre-opening, and one end of the return spring adjacent to the guide filling groove is in contact with the spherical part, and part of the spherical part can protrude into the grain guide groove through the action force of the return spring, and the spherical part is suitable for being clamped and fixed with the depression on the side wall of the grain bin body.

[0009] In a possible implementation, a positioning pin is further included, and the positioning pin is disposed in the guide filling groove, and the setting position of the positioning pin is lower than the setting position of the elastic limiting protrusion.

[0010] In a possible implementation, the inclination direction of the guide filling groove is parallel to the first beveled surface.

[0011] In a possible implementation, the guide filling groove is a cubic groove, and the groove opening width of the guide filling groove is smaller than the width of the groove bottom.

[0012] In a possible implementation, a first screw hole extending longitudinally therethrough is provided on the loading base, and a second screw hole with the same structure is provided at the bottom of the column. The loading base and the column are screwed and fixed via the first screw hole and the second screw hole; and the second screw hole on the column does not interfere with the guide filling groove.

[0013] In a possible implementation, the bottom height of the positioning pin perpendicular to the guide filling groove is higher than the protrusion height of the elastic limiting protrusion; and the pre-opening is a through hole.

[0014] The beneficial effects of the present application are as follows: a seed receiving portion is provided on the top of the loading base for placing seeds, which makes it convenient for medical personnel to grab seeds conveniently and quickly during experiments or operations, and a column with a guide filling groove is provided at the edge / near the edge of the loading base to fix the seed bin body, which makes it convenient for medical personnel to fill seeds from top to bottom with a seed holder. The structure of the filling groove is inclined from top to bottom toward the center of the base, which is more ergonomic than the completely vertical transportation, and also makes the design of the loading platform more humane and easier to use. Moreover, an elastic limiting protrusion is provided in the guide filling groove, and a recessed structure matching the elastic limiting protrusion is provided on the seed bin body. After the seed bin body is fully extended into the guide filling groove, the seed bin body can be clamped and fixed with the elastic limiting protrusion, which effectively plays a guiding and limiting role, thereby avoiding the occurrence of unstable movement trajectory of seeds during the process of filling the seeds into the seed bin body and bursting out of the loading base.

[0015] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0017] Figure 1 A three-dimensional structural diagram showing a radioactive seed loading platform according to an embodiment of the present application;

[0018] Figure 2 A front view of a radioactive seed loading station according to an embodiment of the present application is shown;

[0019] Figure 3 A top view of a radioactive seed loading station according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0021] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0024] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0025] like Figure 1-Figure 3 As shown, the radioactive grain loading platform includes: a loading base 20 and a column 10, the loading base is a columnar structure, and a concave grain receiving portion 21 is provided on the top of the loading base 20; the column 10 is installed at the top of the loading base 20 near the edge or at the edge position, and the column 10 is provided with a guide filling groove 11 on the side of the center of the loading base 20, which is suitable for matching with the structure of the grain bin body; the guide filling groove 11 gradually inclines from top to bottom along the top edge of the loading base 20 toward the top center direction, and the lower notch of the guide filling groove 11 is located above the grain receiving portion 21, and an elastic limiting protrusion 12 is provided in the guide filling groove 11, which is suitable for fixing the grain bin body.

[0026] In this embodiment, a seed receiving portion 21 is provided on the top of the loading base 20 for placing seeds, so that medical personnel can conveniently and quickly grab the seeds during experiments or operations, and a column 10 with a guide filling groove 11 is provided on the edge or near the edge of the loading base 20 to fix the seed bin body, so that medical personnel can conveniently fill the seeds from top to bottom with a seed holder. The structure of the filling groove tilting from top to bottom toward the center of the base is more ergonomic than the completely vertical conveying, and also makes the design of the loading platform more humane, making it more convenient for medical personnel to carry out medical treatment. It is easier to use. In addition, the elastic limiting protrusion 12 is set in the guide filling groove 11, and the seed bin body is provided with a concave structure matching the elastic limiting protrusion 12. After the seed bin body is fully extended into the guide filling groove 11, the seed bin body can be clamped and fixed with the elastic limiting protrusion 12, so that the guide filling groove 11 effectively plays a guiding role, and the elastic limiting protrusion 12 effectively guides and fixes the seed bin body, so as to avoid the unstable movement trajectory of the seeds in the process of filling the seeds into the seed bin body, and the occurrence of the loading base 20. .

[0027] like Figure 3 As shown, in one specific embodiment, the groove bottom and the groove opening of the seed receiving portion 21 are both circular and concentrically arranged, the inner side wall of the seed receiving portion 21 is an inclined arc surface, the groove bottom of the seed receiving portion 21 is a horizontal plane, and the groove bottom radius of the seed receiving portion 21 is smaller than the groove opening radius of the seed receiving portion 21.

[0028] In this embodiment, the inner side wall of the seed receiving portion 21 is an inclined arc surface, which can further prevent the seeds transported from the seed bin body from slipping out of the seed receiving portion 21. Preferably, the groove bottom and the groove opening of the seed receiving portion 21 are both circular and concentrically arranged. Furthermore, the bottom of the seed receiving portion 21 is a plane, which can effectively ensure that the seeds are not easy to roll in the seed receiving portion 21 after being placed.

[0029] Preferably, the seed holding portion 21 of the radioactive seed loading platform of the present application has a depth of less than 12 mm and a radius in the range of 20 mm-30 mm. Since the radioactive seed loading platform is only used as a loading platform, it is usually used to temporarily store seeds before or during surgery, so it is not necessary to store more seeds at one time, and only an appropriate amount is needed. Normally, medical personnel only spread a layer of radioactive seeds on the bottom of the groove of the seed holding portion 21. The seed holding portion 21 with a radius within the range of 20 mm-30 mm and a depth of less than 12 mm can store more than 50 radioactive seeds in one layer at the bottom of the groove while ensuring that medical personnel in this field can take out the seeds more conveniently.

[0030] In one specific embodiment, the column 10 is a cylinder, and the bottom structure of the column 10 matches a partial side wall structure of the seed receiving portion 21 , and the column 10 is fixedly disposed on the inner side wall of the seed receiving portion 21 .

[0031] In this embodiment, the bottom structure of the column 10 is disposed on the inclined arc-shaped side wall of the seed receiving portion 21 , that is, the bottom structure of the column 10 matches a portion of the arc-shaped side wall of the seed receiving portion 21 .

[0032] Preferably, the column 10 is a cylindrical structure whose bottom matches the seed receiving portion 21 .

[0033] In one specific embodiment, the top of the column 10 has a first bevel surface 14 facing the center of the loading base 20, the guide filling groove 11 is opened in the middle of the first bevel surface 14, and the top of the column 10 has a second bevel surface 15 away from the center of the loading base 20, and the second bevel surface 15 is perpendicular to the first bevel surface 14.

[0034] In this embodiment, the top of the column 10 has a first bevel surface 14 facing the center of the loading base 20, the guide filling groove 11 is opened on the first bevel surface 14, the upper groove is opened at the top of the column 10, the lower opening faces the seed loading groove, and a second bevel surface 15 is opened on the other side of the top in the opposite direction.

[0035] Preferably, the second chamfered surface 15 is perpendicular to the first chamfered surface 14, and the mutually perpendicular first chamfered surface 14 and second chamfered surface 15 facilitate the processing of the first chamfered surface 14. Further, the angle between the first chamfered surface 14 and the vertical surface is less than 45°, and preferably, the angle between the first chamfered surface 14 and the vertical surface is 30°, which can ensure that there is a small height difference from the lower notch of the guide filling groove 11 to the bottom of the seed receiving portion 21, ensuring that the seeds will not slip out of the groove.

[0036] More specifically, the intersection of the first chamfered surface 14 and the second chamfered surface 15 overlaps with the top center line of the column 10 for greater convenience during processing.

[0037] It should also be pointed out that the ratio of the groove bottom radius to the groove opening radius of the seed receiving portion 21 is less than 1:3, to ensure that the groove bottom is not too small and can accommodate an appropriate number of seeds, and the ratio of the groove opening area of ​​the seed receiving portion 21 to the top projection area of ​​the column is greater than 3 / 4, to ensure the reasonable and effective use of the space in the loading base 20 and avoid wasting space.

[0038] like Figure 2 As shown, in one specific embodiment, the elastic limiting protrusion 12 includes a spherical part and a return spring, a pre-opening hole is opened at the bottom of the groove of the grain receiving portion 21, the return spring is installed in the pre-opening hole, the spherical part is in contact with the return spring, and the spherical part can protrude outward at the bottom of the guide filling groove 11 through the return spring.

[0039] In this embodiment, the elastic limiting protrusion 12 opened at the bottom of the groove only needs to fix the spring with appropriate expansion and contraction amount in the pre-opened hole and ensure that the spherical part can protrude from the bottom of the guide filling groove 11 in the initial position.

[0040] Preferably, the elastic limiting protrusion 12 is a spring bead, which can effectively prevent the seeds from falling off due to instability during the seed filling process. The specific installation and fixing methods of the spring bead can be achieved through existing technologies and will not be described in detail here.

[0041] In one of the specific embodiments, a positioning pin 13 is further included. The positioning pin 13 is disposed in the guide filling groove 11 , and the location of the positioning pin 13 is lower than the location of the elastic limiting protrusion 12 .

[0042] Preferably, the positioning pin 13 is a cylindrical positioning pin 13, which can better position the seed bin body.

[0043] In this embodiment, the position of the positioning pin 13 is lower than the height of the elastic limiting protrusion 12. When medical personnel in this field place the grain bin body into the guide filling groove 11, they first pass through the elastic limiting protrusion 12. After the positioning pin contacts the grain seed implanter, the implanter is in place and the elastic limiting protrusion 12 is reset. The depression on the grain bin body is engaged and fixed with the elastic limiting protrusion 12. The grain bin body is doubly limited by cooperating with the elastic limiting protrusion 12 and the positioning pin 13. The grain bin body is fixed at more than two points in the guide filling groove 11 to avoid shaking of the implanter in the guide filling groove 11 as much as possible, thereby affecting the grain conveying efficiency.

[0044] In one specific embodiment, the inclined direction of the guide filling groove 11 is parallel to the first chamfered surface 14 .

[0045] In this embodiment, preferably, the inclination angle of the guide filling groove 11 is parallel to the first chamfered surface 14, which can reduce the processing difficulty of the implementers in this field to the greatest extent.

[0046] In one specific embodiment, the guide filling groove 11 is a cubic groove, and the groove width of the guide filling groove 11 is smaller than the width of the groove bottom.

[0047] In this embodiment, the width of the slot opening of the guide filling slot 11 is smaller than the width of the slot bottom. Preferably, the cross-sectional projection of the guide filling slot 11 is in a "convex" shape, which is more suitable for matching with a seed implanter.

[0048] More specifically, the cross-sectional projection of the guide filling groove 11 perpendicular to the opening direction of the groove body is in a "convex" shape.

[0049] In one of the specific embodiments, a longitudinally penetrating screw hole is provided on the loading base 20, and a buried hole with the same structure is provided at the bottom of the column 10, which does not interfere with the guide filling groove 11, and the loading base 20 is fixed to the column 10 by screw connection.

[0050] In one of the specific embodiments, the bottom height of the positioning pin 13 perpendicular to the guide filling groove 11 is higher than the protrusion height of the elastic limiting protrusion 12, and the pre-opening is a through hole.

[0051] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A radioactive seed loading platform, characterized in that: Including loading base and column; The loading base is a columnar structure, and a concave seed receiving portion is provided on the top of the loading base; The column is installed at the top of the loading base near the edge or at the edge position, and the column is provided with a guide filling groove on one side of the center of the loading base, which is suitable for matching the structure of the grain bin; The guide filling groove is gradually inclined from top to bottom along the top edge of the loading base toward the top center direction, the lower notch of the guide filling groove is located above the seed receiving portion, and an elastic limiting protrusion is arranged in the guide filling groove, which is suitable for fixing the seed bin; The bottom and top of the seed receiving portion are both circular and concentrically arranged, and the inner side wall of the seed receiving portion is an inclined arc surface; the bottom of the seed receiving portion is a horizontal plane, and the bottom radius of the seed receiving portion is smaller than the top radius of the seed receiving portion; The column is a cylinder, and the bottom structure of the column has an inclined surface, the bottom inclined surface of the column matches a part of the side wall structure of the seed receiving portion, and the column is fixedly arranged on the inner side wall of the seed receiving portion; The loading base is a cylindrical structure; The top of the column has a first chamfered surface on one side facing the center of the loading base, and the guide filling groove is opened in the middle of the first chamfered surface; A second chamfered surface is formed on the top of the column on a side away from the center of the loading base, and the second chamfered surface is perpendicular to the first chamfered surface.

2. The radioactive seed loading platform according to claim 1, characterized in that: The elastic limiting protrusion includes a spherical part and a return spring; The column is provided with a pre-opened hole in the guide filling groove, and the spherical member and the return spring are installed together in the pre-opened hole; Among them, one end of the return spring away from the guide filling groove is fixed in the pre-opening hole, and one end of the return spring adjacent to the guide filling groove is in contact with the spherical part. Part of the spherical part can protrude into the guide filling groove through the action force of the return spring, and the spherical part is suitable for being clamped and fixed with the recess on the side wall of the grain bin.

3. The radioactive seed loading platform according to claim 2, characterized in that: It also includes a positioning pin, which is arranged in the guide filling groove, and the setting position of the positioning pin is lower than the setting position of the elastic limiting protrusion.

4. The radioactive seed loading platform according to claim 1, characterized in that: The inclination direction of the guide filling groove is parallel to the first beveled surface.

5. The radioactive seed loading station according to claim 1, characterized in that: The guide filling groove is a square groove, the groove width of the guide filling groove is smaller than the width of the groove bottom, and the cross-sectional projection of the guide filling groove perpendicular to the opening direction of the groove body is in a "convex" shape.

6. The radioactive seed loading station according to claim 1, characterized in that: The loading base is provided with a first screw hole which passes through longitudinally, and the bottom of the column is provided with a second screw hole with the same structure, and the loading base and the column are screwed and fixed through the first screw hole and the second screw hole; Furthermore, the second screw hole on the column does not interfere with the guide filling groove.

7. The radioactive seed loading station according to claim 3, characterized in that: The positioning pin is perpendicular to the bottom of the guide filling groove, and its height is higher than the protrusion height of the elastic limiting protrusion; The pre-opened hole is a through hole.

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