CN220656215U - Leading-in fixing device for eccentric tumor brachytherapy - Google Patents
Leading-in fixing device for eccentric tumor brachytherapy Download PDFInfo
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- CN220656215U CN220656215U CN202321759351.1U CN202321759351U CN220656215U CN 220656215 U CN220656215 U CN 220656215U CN 202321759351 U CN202321759351 U CN 202321759351U CN 220656215 U CN220656215 U CN 220656215U
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- implantation
- eccentric
- ring
- limiting
- head
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- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 21
- 238000002725 brachytherapy Methods 0.000 title claims abstract description 17
- 238000002513 implantation Methods 0.000 claims abstract description 48
- 238000001959 radiotherapy Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 239000007943 implant Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 210000001215 vagina Anatomy 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 206010008342 Cervix carcinoma Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 208000006105 Uterine Cervical Neoplasms Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010881 cervical cancer Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
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- Radiation-Therapy Devices (AREA)
Abstract
The utility model discloses an introducing and fixing device for eccentric tumor brachytherapy, which relates to the field of medical equipment, and comprises an implanting column, an implanting head, a connector, a first placing channel, a second placing channel, a third placing channel, a first limiting fixing piece and a second limiting fixing piece, wherein the implanting column is implanted into an endophyte of a patient during radiotherapy treatment; the implantation head is of a ship-shaped structure and is fixedly arranged at the first end of the implantation column; the first limiting fixing piece is used for limiting and fixing the source applicator on the connector; the second limiting fixing piece is used for limiting and fixing the inserting needle on the connecting head; the implantation head is set to be of a ship-shaped structure, and the cylindrical structural design of the implantation column is combined, so that the placement of the implantation needle and the applicator is guaranteed, the size of the implantation column between the connector and the implantation head is effectively reduced, the difficulty of the implantation fixing device in entering a narrow vagina is reduced, and meanwhile, the implantation needle can cover eccentric tumors in a larger range, and more ideal dose distribution is realized.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to an introduction fixing device for eccentric tumor brachytherapy.
Background
Brachytherapy is an indispensable part of radical radiotherapy of cervical cancer, and clinically conventionally used brachytherapy technology is intracavity radiotherapy or tissue-interposed radiotherapy, but single-use intracavity radiotherapy or tissue-interposed radiotherapy is easy to generate uneven dose distribution, so that the tumor recession effect is poor. The intra-cavity combined tissue inter-implantation treatment technology ensures that the target area has better conformality, thereby further improving the local control rate of the tumor, and the current situation and the deficiency are: for patients with vagina stenosis or eccentric tumor, due to the diameter of the cylinder in the guide plate cavity, ideal dose distribution is difficult to realize, namely if the diameter of the cylinder is bigger, the guide plate is difficult to enter the cavity; if the diameter of the cylinder is smaller, the coverage of the insertion needle becomes smaller, and the eccentric tumor target area is difficult to cover.
Disclosure of Invention
The utility model aims to solve the problems and designs an introducing and fixing device for the eccentric tumor brachytherapy.
The utility model realizes the above purpose through the following technical scheme:
an infusion fixation device for brachytherapy of eccentric tumors, comprising:
implanting a post; the implantation column is used for being implanted into an endophyte of a patient during radiotherapy treatment;
an implant head; the implantation head is of a ship-shaped structure and is fixedly arranged at the first end of the implantation column;
a connector; the connector is fixedly arranged at the second end of the implantation column;
a first placement channel; the first placing channel penetrates through the connector, the implantation column and the implantation head;
at least one second placement channel; the second placing channel penetrates through the connector, the implantation column and the implantation head;
at least one third placement channel; each third placing channel comprises a first through hole and a second through hole, the first through holes are arranged on the implantation head, the second through holes are arranged on the connecting head, and the central axes of the first through holes and the central axes of the second through holes of the same third placing channels are coincident;
a first limit fixing piece; the first limiting fixing piece is used for limiting and fixing the source applicator on the connector;
the second limiting fixing piece; the second limiting fixing piece is used for limiting and fixing the inserting needle on the connector.
The utility model has the beneficial effects that: the implantation head is set to be of a ship-shaped structure, and the cylindrical structural design of the implantation column is combined, so that the placement of the implantation needle and the applicator is guaranteed, the size of the implantation column between the connector and the implantation head is effectively reduced, the difficulty of the implantation fixing device in entering a narrow vagina is reduced, and meanwhile, the implantation needle can cover eccentric tumors in a larger range, and more ideal dose distribution is realized.
Drawings
FIG. 1 is a schematic structural view of an introduction fixture for brachytherapy of eccentric tumors of the present utility model;
FIG. 2 is an exploded view of the lead-in fixture of the present utility model for brachytherapy of eccentric tumors;
FIG. 3 is an internal structural view of an introduction fixture for brachytherapy of eccentric tumors of the present utility model;
wherein corresponding reference numerals are as follows:
the device comprises a 1-implantation column, a 2-implantation head, a 3-connector, a 4-first placement channel, a 5-second placement channel, a 6-first through hole, a 7-second through hole, an 8-first eccentric ring, a 9-mounting step, a 10-second eccentric ring, a 11-mounting ring, a 12-positioning plate, a 13-mounting groove, a 14-first positioning hole, a 15-second positioning hole and a 16-damping plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present utility model in detail with reference to the drawings.
As shown in fig. 1, 2 and 3, the introduction fixing device for brachytherapy of eccentric tumor comprises:
implanting a column 1; the implantation column 1 is implanted into an endophyte of a patient during radiotherapy treatment;
an implantation head 2; the implantation head 2 is of a ship-shaped structure, and the implantation head 2 is fixedly arranged at the first end of the implantation column 1;
a connector 3; the connector 3 is fixedly arranged at the second end of the implantation column 1;
a first placement channel 4; the first placing channel 4 penetrates through the connector 3, the implantation column 1 and the implantation head 2;
at least one second placement channel 5; the second placing channel 5 penetrates through the connector 3, the implantation column 1 and the implantation head 2;
at least one third placement channel; each third placing channel comprises a first through hole 6 and a second through hole 7, the first through hole 6 is arranged on the implantation head 2, the second through hole 7 is arranged on the connector 3, and the central axis of the first through hole 6 and the central axis of the second through hole 7 of the same third placing channel are coincident;
a first limit fixing piece; the first limiting fixing piece is used for limiting and fixing the source applicator on the connector 3;
the second limiting fixing piece; the second limiting fixing piece is used for limiting and fixing the inserting needle on the connector 3.
The first spacing mounting includes:
a first eccentric ring 8; the first eccentric ring 8 is fixedly arranged on the connector 3, the first end of the inner ring of the first eccentric ring 8 is communicated with the first placing channel 4, the distance between the central axis of the inner ring of the first eccentric ring 8 and the central axis of the first placing channel 4 is larger than zero, and the outer wall of the first eccentric ring 8 is provided with an installation step 9;
a second eccentric ring 10; the distance between the central axis of the inner ring of the second eccentric ring 10 and the central axis of the outer ring of the second eccentric ring 10 is greater than zero,
a mounting ring 11; the mounting ring 11 is fixedly connected with the second eccentric ring 10, the mounting ring 11 is communicated with the inner ring of the second eccentric ring 10, and the mounting ring 11 is sleeved on the mounting step 9 of the first eccentric ring 8;
when radiotherapy treatment is carried out, the inner wall of the second eccentric ring 10 and the inner wall of the first eccentric ring 8 are in extrusion contact with the applicator, and the inner wall of the mounting ring 11 is in extrusion contact with the outer wall of the first eccentric ring 8.
The second limit fixing piece comprises;
a positioning plate 12; the connector 3 is provided with an installation groove 13, the positioning plate 12 is installed in the installation groove 13, the positioning plate 12 is provided with at least one first positioning hole 14 and at least one second positioning hole 15, the central axis of one first positioning hole 14 is coincident with the central axis of one second placing channel 5, and the central axis of one second positioning hole 15 is coincident with the central axis of one third placing channel;
a limiting piece; the limiting member is used for controlling the relative static state between the inserting needle and the positioning plate 12.
The limiting piece comprises a damping plate 16, the damping plate 16 is arranged in the mounting groove 13, two sides of the damping plate 16 are respectively contacted with the positioning plate 12 and the mounting groove 13, and when radiotherapy is carried out, the inserting needle passes through the damping plate 16 to be in extrusion contact with the damping plate 16.
The utility model relates to a leading-in fixing device for eccentric tumor brachytherapy, which has the following working principle:
when the applicator is installed, the second eccentric ring 10 is rotated, so that the central axis of the second eccentric ring 10 coincides with the central axis of the first eccentric ring 8, then the applicator sequentially passes through the second eccentric ring 10, the first eccentric ring 8 and the first placing channel 4, after the applicator is placed in place, the second eccentric ring 10 is rotated again, the channel size at the contact position of the second eccentric ring 10 and the first eccentric ring 8 is reduced, the inner wall of the second eccentric ring 10 and the inner wall of the first eccentric ring 8 are in extrusion contact with the applicator, and meanwhile, the inner wall of the mounting ring 11 is in extrusion contact with the outer wall of the first eccentric ring 8, so that the locking and positioning of the applicator are realized; when the inserting needle is placed, the second placing channel 5 and the third placing channel at corresponding positions are selected according to the specific conditions of the affected part, the inserting needle sequentially passes through the first positioning hole 14, the damping ring and the second placing channel 5 of the positioning plate 12, or the inserting needle sequentially passes through the second positioning hole 15, the damping ring and the third placing channel of the positioning plate 12, and the inserting needle is in extrusion contact with the damping ring, so that locking and positioning of the inserting needle are realized.
The technical scheme of the utility model is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the utility model fall within the protection scope of the utility model.
Claims (4)
1. An introduction fixture for brachytherapy of eccentric tumors, comprising:
implanting a post; the implantation column is used for being implanted into an endophyte of a patient during radiotherapy treatment;
an implant head; the implantation head is of a ship-shaped structure and is fixedly arranged at the first end of the implantation column;
a connector; the connector is fixedly arranged at the second end of the implantation column;
a first placement channel; the first placing channel penetrates through the connector, the implantation column and the implantation head;
at least one second placement channel; the second placing channel penetrates through the connector, the implantation column and the implantation head;
at least one third placement channel; each third placing channel comprises a first through hole and a second through hole, the first through holes are arranged on the implantation head, the second through holes are arranged on the connecting head, and the central axes of the first through holes and the central axes of the second through holes of the same third placing channels are coincident;
a first limit fixing piece; the first limiting fixing piece is used for limiting and fixing the source applicator on the connector;
the second limiting fixing piece; the second limiting fixing piece is used for limiting and fixing the inserting needle on the connector.
2. The lead-in fixture for brachytherapy of an eccentric tumor of claim 1, wherein the first limit fixture comprises:
a first eccentric ring; the first eccentric ring is fixedly arranged on the connecting head, the first end of the inner ring of the first eccentric ring is communicated with the first placing channel, the distance between the central axis of the inner ring of the first eccentric ring and the central axis of the first placing channel is larger than zero, and the outer wall of the first eccentric ring is provided with an installation step;
a second eccentric ring; the distance between the central axis of the second eccentric ring inner ring and the central axis of the second eccentric ring outer ring is larger than zero;
a mounting ring; the mounting ring is fixedly connected with the second eccentric ring, is communicated with the inner ring of the second eccentric ring, and is sleeved on the mounting step of the first eccentric ring;
when radiotherapy is carried out, the inner wall of the second eccentric ring and the inner wall of the first eccentric ring are in extrusion contact with the applicator, and the inner wall of the mounting ring is in extrusion contact with the outer wall of the first eccentric ring.
3. The lead-in fixture for brachytherapy of an eccentric tumor of claim 1, wherein the second limit fixture comprises;
a positioning plate; the connecting head is provided with a mounting groove, the positioning plate is arranged in the mounting groove, the positioning plate is provided with at least one first positioning hole and at least one second positioning hole, the central axis of one first positioning hole is coincident with the central axis of one second placing channel, and the central axis of one second positioning hole is coincident with the central axis of one third placing channel;
a limiting piece; the limiting piece is used for controlling the relative static state between the inserting needle and the positioning plate.
4. The device for introducing and fixing the brachytherapy of eccentric tumor according to claim 3, wherein the limiting member comprises a damping plate, the damping plate is installed in the installation groove, both sides of the damping plate are respectively contacted with the positioning plate and the installation groove, and the insertion needle passes through the damping plate to be in extrusion contact with the damping plate when the radiotherapy is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321759351.1U CN220656215U (en) | 2023-07-06 | 2023-07-06 | Leading-in fixing device for eccentric tumor brachytherapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321759351.1U CN220656215U (en) | 2023-07-06 | 2023-07-06 | Leading-in fixing device for eccentric tumor brachytherapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220656215U true CN220656215U (en) | 2024-03-26 |
Family
ID=90329306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321759351.1U Active CN220656215U (en) | 2023-07-06 | 2023-07-06 | Leading-in fixing device for eccentric tumor brachytherapy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220656215U (en) |
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2023
- 2023-07-06 CN CN202321759351.1U patent/CN220656215U/en active Active
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