CN217612536U - Multi-channel vagina and cervix applicator with adjustable diameter - Google Patents
Multi-channel vagina and cervix applicator with adjustable diameter Download PDFInfo
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- CN217612536U CN217612536U CN202122945737.9U CN202122945737U CN217612536U CN 217612536 U CN217612536 U CN 217612536U CN 202122945737 U CN202122945737 U CN 202122945737U CN 217612536 U CN217612536 U CN 217612536U
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Abstract
The utility model relates to a diameter-adjustable multi-channel vagina and cervix applicator which adopts a multi-layer nested structure and comprises a cylindrical inner sleeve and a plurality of cylindrical outer sleeves which are sequentially nested outside the inner sleeve; the inner sleeve is provided with a central large round hole channel for post-loading accurate brachytherapy of cervical cancer and endometrial cancer, a uterine cavity tube is placed in the central large round hole channel, peripheral small round hole channels for post-loading accurate brachytherapy of vaginal cancer are also arranged on the inner sleeve and each outer sleeve, and metal insertion needles are placed in the peripheral small round hole channels; the rear end of the inner layer sleeve is also provided with a fastener for fixing the uterine cavity tube. The utility model can be used for treating various tumors at the same time, and has comprehensive functions and low cost; and can adjust the diameter of executing the source ware according to patient's actual conditions, make it with patient's vagina laminating better, avoid the vagina mucosa damage, be favorable to realizing ideal irradiated dose effect, patient's comfort level is high.
Description
Technical Field
The utility model relates to a source applicator especially relates to a multichannel vagina and cervix source applicator with adjustable diameter, belongs to back dress brachytherapy technical field.
Background
Vaginal, cervical and endometrial cancers are all common gynecological malignancies. The treatment method mainly adopts surgery, radiotherapy and chemotherapy, wherein the surgery usually adopts a resection mode, has great influence on life and is only suitable for early treatment, the radiotherapy is a local treatment method for treating tumors by utilizing radioactive rays, and the afterloading radiotherapy is a form of radiotherapy and is widely applied to the treatment of the tumors.
Afterloading brachytherapy employs sealed radioactive sources, placed inside or around the tumor, directly delivering prescribed doses to the target area of the tumor, allowing the target area to receive a sufficiently high dose while the dose to surrounding normal or compromised tissues is greatly reduced. Therefore, the traditional Chinese medicine composition has short treatment time, good effect and high patient comfort, and is increasingly applied to the field of gynecological radiotherapy. However, the standardized columnar applicators commonly available in the market at present have the problems of single function, small diameter types of the applicators, difficulty in realizing perfect matching with the vagina of a patient, lack of a fixing device for a uterine cavity tube, poor dose distribution effect and treatment effect, poor experience of the patient and the like, and seriously influence the treatment effect.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at the problems in the prior art and provides a diameter-adjustable multi-channel vagina and cervix applicator which can be used for treating vagina cancer, cervical cancer and endometrial cancer simultaneously, and has comprehensive functions and low cost; and can adjust the diameter of executing the source ware according to patient's actual conditions, make it better with patient's vagina laminating, avoid the vagina mucosa damage, be favorable to realizing ideal irradiated dose effect, patient's comfort level is high, can be fixed palace chamber pipe well in addition, avoids bringing great treatment error for back dress radiotherapy.
The purpose of the utility model is mainly realized by the following scheme:
a diameter-adjustable multi-channel vagina and cervix applicator adopts a multi-layer nested structure and comprises a cylindrical inner sleeve and a plurality of cylindrical outer sleeves which are sequentially nested outside the inner sleeve; the inner sleeve is provided with a central large round hole channel for post-loading accurate brachytherapy of cervical cancer and endometrial cancer, the central large round hole channel is used for placing a uterine cavity tube, the inner sleeve and each outer sleeve are also provided with peripheral small round hole channels for post-loading accurate brachytherapy of vaginal cancer, and the peripheral small round hole channels are used for placing metal insertion needles; the rear end of the inner layer sleeve is also provided with a fastener for fixing the uterine cavity tube.
Preferably, after the multi-layer nested structure of the applicator is completely assembled, the top end of the applicator is in a hemispherical shape with a diameter equal to the outer diameter of the outer sleeve on the outermost side, and the rear end faces of the inner sleeve and the outer sleeves are flush.
Preferably, in the multilayer nested structure, the adjacent two layers of outer-layer sleeves and the positions between the inner-layer sleeve and the adjacent outer-layer sleeve are positioned by symmetrically arranged clamping groove structures.
Preferably, the clamping groove structure comprises a positioning block and a positioning groove matched with the positioning block, and the positioning block is in a cylindrical, sawtooth or prism structure.
Preferably, the central large circular hole channel is axially arranged along the center of the inner sleeve, and the peripheral small circular hole channels on the inner sleeve and the outer sleeve are uniformly distributed at intervals in the circumferential direction of the central large circular hole channel.
Preferably, the chamfer of the rear end of the outer peripheral small circular hole channel is C0.5-C1.
Preferably, the fastener comprises a round platform-shaped clamping table and a cylindrical clamping cover, the large-diameter bottom surface of the clamping table is fixedly arranged in the center of the rear end of the inner-layer sleeve, a clamping channel with the diameter equal to that of the central large-circular-hole channel is axially arranged in the center of the clamping table, symmetrical notches are further axially arranged on the clamping table, and clamping grooves communicated with the notches are further formed in the connecting part of the clamping table and the inner-layer sleeve; 4-8 grooves are axially and uniformly arranged on the periphery of the clamping cover, a clamping taper hole matched with the clamping table in use is axially formed in the center of the clamping cover, and a clamping fixture block matched with the clamping groove in use is arranged on the wall surface of the clamping taper hole.
Preferably, the taper of the clamping table is 5-15 degrees, the taper of the clamping taper hole in the clamping cover is 2-12 degrees, the taper of the clamping taper hole is smaller than that of the clamping table, and the taper of the side face of the clamping fixture block is 10-15 degrees.
Preferably, the adjustment range of the diameter of the applicator is 20-35mm.
Preferably, the length of the applicator is in the range of 100-140mm.
Therefore, compared with the prior art, the utility model discloses possess following advantage:
(1) The utility model provides an it is equipped with the central big round hole passageway that is used for accurate brachytherapy cervical carcinoma of back dress and endometrial carcinoma and is used for the accurate brachytherapy vaginal carcinoma's of back dress periphery small circle hole passageway to execute source ware on, central big round hole passageway is used for placing the uterine cavity pipe, is used for placing the metal in the periphery small circle hole passageway and inserts the needle, can be used for the treatment of vaginal carcinoma, cervical carcinoma and endometrial carcinoma simultaneously, and the function is comprehensive, has practiced thrift the cost moreover;
(2) The utility model provides a source applicator adopts multilayer nested structure, the adjusting range of the diameter of the source applicator is 20-35mm, the diameter of the source applicator can be adjusted according to the actual condition of a patient, so that the source applicator can be well attached to the vagina of the patient, the damage of vagina mucosa is avoided, the ideal irradiated dose effect is favorably realized, and the comfort level of the patient is improved;
(3) The multi-layer nested structure of the utility model adopts a clamping groove structure to position, the positioning operation is convenient, and the rapid assembly can be carried out according to the actual condition of a patient, so as to adjust the diameter of the applicator;
(4) The utility model fixes the uterine cavity tube through the fastener, which avoids the displacement of the uterine cavity tube and has accurate positioning;
(5) The utility model provides a source applicator is equipped with a plurality of periphery small round hole passageways, can satisfy diffuse, on a large scale the treatment of focus.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of another perspective structure of the present invention;
fig. 3 is a front view of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a bottom view of the present invention;
fig. 6 is an exploded schematic view of the present invention;
fig. 7 is a schematic structural view of the clamping table of the present invention;
fig. 8 is a schematic structural view of the clamping cover of the present invention.
Illustration of the drawings: 1-inner sleeve, 2-outer sleeve, 3-central large circular hole channel, 4-peripheral small circular hole channel, 5-positioning block, 6-positioning groove, 7-chamfer, 8-clamping table, 9-clamping cover, 10-clamping channel, 11-notch, 12-clamping slot, 13-groove, 14-clamping conical hole and 15-clamping block.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings. It is to be understood that the practice of the invention is not limited to the following examples, and that any modifications and/or changes in form made to the invention are intended to fall within the scope of the invention.
In the utility model, all parts and percentages are weight units, and the adopted equipment, raw materials and the like can be purchased from the market or commonly used in the field if not specified. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example 1:
as shown in fig. 1 and 2, the utility model provides a technical scheme, a diameter-adjustable multi-channel vagina and cervix applicator, the main body of the applicator adopts a multilayer nested structure and is composed of a cylindrical inner sleeve 1 and a plurality of cylindrical outer sleeves 2 nested outside the inner sleeve 1 in sequence, and two outer sleeves 2 are arranged in the embodiment; a central large round hole channel 3 for post-loading accurate brachytherapy of cervical cancer and endometrial cancer is arranged on the inner sleeve 1, a uterine cavity tube is arranged in the central large round hole channel 3, peripheral small round hole channels 4 for post-loading accurate brachytherapy of vaginal cancer are also arranged on the inner sleeve 1 and each outer sleeve 2, and metal insertion needles are arranged in the peripheral small round hole channels 4; the rear end of the inner sleeve 1 is also fixed with a fastener for fixing the uterine cavity tube.
In this embodiment, the range of adjustment of the applicator diameter is 20-35mm, and the range of the length of the applicator is 100-140mm.
The central large circular hole channel 3 is used for placing a uterine cavity tube for post-loading accurate brachytherapy of cervical cancer and endometrial cancer, the peripheral small circular hole channel 4 is used for placing a metal insertion needle for post-loading accurate brachytherapy of vaginal cancer, and the device can be used for simultaneously treating vaginal cancer, cervical cancer and endometrial cancer, and is comprehensive in function and low in cost; and can adjust the diameter of executing source ware according to patient's actual conditions, make it with patient's vagina laminating better, avoid the vagina mucosa damage, be favorable to realizing the irradiated dose effect of ideal, patient's comfort level is high, can fix palace chamber pipe well in addition through the fastener, avoids bringing great treatment error for back dress radiotherapy, and after metal is inserted and is planted the needle and reach the ideal position in addition, its position relative executing source ware body adopts elastic rubber piece to fix.
Example 2:
as shown in fig. 1 and 2, the utility model provides another technical scheme, a multichannel vagina and cervix applicator with adjustable diameter, with embodiment 1's difference lie in, the whole assembly of source applicator's multilayer nested structure is accomplished the back, the top of source applicator body is the hemisphere that a diameter equals with the outer sleeve 2 external diameter in the outside, and inlayer sleeve 1 and a plurality of outer sleeve 2's rear end face parallel and level, in multilayer nested structure, in addition, all closely laminate between adjacent two-layer outer sleeve 2 and inlayer sleeve 1 and the adjacent outer sleeve 2, and the draw-in groove structure that adopts the symmetry to set up fixes a position.
It is specific, the draw-in groove structure comprises locating piece 5 and constant head tank 6 with the cooperation of locating piece 5 use, the shape of locating piece 5 is the cylinder, sawtooth or prismatic structure, as shown in the figure, be equipped with two outer sleeve 2 in this embodiment, the rear end inner wall symmetry of the outer sleeve 2 in outside is equipped with two cylindric constant head tanks 6, the rear end outer wall symmetry of the outer sleeve 2 in intermediate level is equipped with two integrated into one piece's cylindric locating piece 5, the rear end inner wall symmetry of the outer sleeve 2 in intermediate level is equipped with two cylindric constant head tanks 6, the telescopic rear end outer wall symmetry in innermost inlayer is equipped with two integrated into one piece's cylindric locating piece 5, through matched with locating piece 5 and constant head tank 6, convenient operation during the positioning, and can carry out rapid Assembly according to patient actual conditions, dismantle, and then adjust the diameter of source applicator, it is better with patient's vagina laminating.
Example 3:
as shown in fig. 1 and 2, the utility model provides another technical scheme, a multichannel vagina and cervix of a kind that the diameter is adjustable execute source ware, with embodiment 1's difference lies in, the central big round hole passageway 3 of central authorities sets up along the central axial of inlayer sleeve 1, the periphery small circle hole passageway 4 that is located on inlayer sleeve 1 and outer sleeve 2 is in the even interval distribution of the circumference of the big round hole passageway 3 of central authorities, the periphery small circle hole passageway 4 quantity on inlayer sleeve 1 and the outer sleeve 2 equals in this embodiment, be 12, can satisfy the diffuse, on a large scale the treatment of focus.
Preferably, the rear end of the peripheral small round hole channel 4 is provided with a chamfer 7, the chamfer 7 is C0.5-C1, and the metal inserting needle is conveniently placed in the peripheral small round hole channel 4 through the chamfer 7.
Example 4:
as shown in fig. 1 and 2, the utility model provides another technical scheme, a diameter-adjustable multichannel vagina and cervix applicator, the difference with embodiment 1 lies in that the fastener adopts wedge structure + buckle clamping groove structure to clamp and fix, the fastener comprises a circular truncated cone-shaped clamping platform 8 and a cylindrical clamping cover 9, the large-diameter bottom surface of the clamping platform 8 is fixedly arranged in the center of the rear end of the inner sleeve 1, namely the clamping platform 8 coincides with the axis of the inner sleeve 1, and the central axis of the clamping platform 8 is provided with a clamping channel 10 with the same diameter as the central large circular hole channel 3, the axial direction of the clamping platform 8 is further provided with symmetrical notches 11, the notches 11 are the same as the clamping channel 10, the clamping platform 8 is divided into two symmetrical semicircular platform structures, the joint of the clamping platform 8 and the inner sleeve 1 is further provided with clamping grooves 12 communicated with the notches 11, and the two sides of each notch 11 are provided with clamping grooves 12; 4-8 grooves 13 are axially and uniformly arranged on the periphery of the clamping cover 9, a clamping taper hole 14 matched with the clamping table 8 in use is axially arranged at the center of the clamping cover 9, and a clamping fixture block 15 matched with the clamping slot 12 in use is arranged on the wall surface of the clamping taper hole 14.
Preferably, the taper of the clamping table 8 is 5-15 degrees, the taper of the clamping taper hole 14 in the clamping cover 9 is 2-12 degrees, the taper of the clamping taper hole 14 is smaller than that of the clamping table 8, and the taper of the side surface of the clamping fixture block 15 is 10-15 degrees.
The utility model provides a pair of multichannel vagina and cervix uteri source applicator with adjustable diameter, be equipped with the big round hole passageway 3 in center that is used for accurate brachytherapy cervical carcinoma and endometrial carcinoma of back dress and be used for the accurate brachytherapy vaginal carcinoma's of back dress periphery small circle hole passageway 4, big round hole passageway 3 in center is used for placing the palace chamber pipe, be used for placing the metal in the little round hole passageway 4 in the periphery and insert the needle, can be used for the treatment of vaginal carcinoma, cervical carcinoma and endometrial carcinoma simultaneously, the function is comprehensive, and the cost is saved, a plurality of periphery small circle hole passageways can also satisfy the treatment of diffuse, focus on a large scale; in addition, the applicator main body adopts a multilayer nested structure, the diameter of the applicator can be adjusted according to the actual condition of a patient, so that the applicator can be well attached to the vagina of the patient, the vaginal mucosa is prevented from being damaged, the ideal irradiated dose effect is favorably realized, and the comfort level of the patient is improved; in addition, the multilayer nested structures are positioned by a clamping groove structure, so that the positioning operation is convenient, and the rapid assembly can be carried out according to the actual condition of a patient, so that the diameter of the applicator is adjusted; the fastener is fixed to the uterine cavity tube, so that the uterine cavity tube is prevented from moving, the positioning is accurate, and the practicability is high.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. A multi-channel vaginal and cervical applicator with adjustable diameter, characterized in that: the applicator adopts a multilayer nested structure and comprises a cylindrical inner sleeve (1) and a plurality of cylindrical outer sleeves (2) which are sequentially nested outside the inner sleeve (1); the inner sleeve (1) is provided with a central large circular hole channel (3) for post-loading accurate brachytherapy of cervical cancer and endometrial cancer, a uterine cavity tube is placed in the central large circular hole channel (3), the inner sleeve (1) and each layer of the outer sleeve (2) are also provided with peripheral small circular hole channels (4) for post-loading accurate brachytherapy of vaginal cancer, and metal insertion needles are placed in the peripheral small circular hole channels (4); the rear end of the inner layer sleeve (1) is also provided with a fastener for fixing the uterine cavity tube.
2. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 1, wherein: after the multi-layer nested structure of the applicator is completely assembled, the top end of the applicator is in a hemispherical shape with the diameter equal to the outer diameter of the outer sleeve (2) at the outermost side, and the rear end faces of the inner sleeve (1) and the outer sleeves (2) are flush.
3. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 2, wherein: in the multilayer nested structure, the adjacent two layers of outer sleeves (2) and the inner layer sleeves (1) are positioned by symmetrically arranged clamping groove structures between the adjacent outer sleeves (2).
4. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 3, wherein: the clamping groove structure comprises a positioning block (5) and a positioning groove (6) matched with the positioning block (5) for use, and the positioning block (5) is of a cylindrical, sawtooth or prism structure.
5. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 1, wherein: the central large round hole channel (3) is axially arranged along the center of the inner sleeve (1), and the peripheral small round hole channels (4) positioned on the inner sleeve (1) and the outer sleeve (2) are uniformly distributed at intervals in the circumferential direction of the central large round hole channel (3).
6. The adjustable diameter multi-channel vaginal and cervical applicator of claim 5, wherein: and a chamfer (7) at the rear end of the peripheral small circular hole channel (4) is C0.5-C1.
7. The adjustable diameter multi-channel vaginal and cervical applicator of claim 6, wherein: the fastening piece comprises a circular truncated cone-shaped clamping table (8) and a cylindrical clamping cover (9), the large-diameter bottom surface of the clamping table (8) is fixedly arranged in the center of the rear end of the inner sleeve (1), a clamping channel (10) with the diameter equal to that of the central large-circular-hole channel (3) is axially arranged in the center of the clamping table (8), symmetrical notches (11) are further axially arranged on the clamping table (8), and a clamping groove (12) communicated with the notches (11) is further arranged at the joint of the clamping table (8) and the inner sleeve (1); 4-8 grooves (13) are axially and uniformly arranged on the periphery of the clamping cover (9), a clamping taper hole (14) matched with the clamping table (8) in use is axially formed in the center of the clamping cover (9), and a clamping block (15) matched with the clamping groove (12) in use is arranged on the wall surface of the clamping taper hole (14).
8. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 7, wherein: the taper of the clamping table (8) is 5-15 degrees, the taper of a clamping taper hole (14) in the clamping cover (9) is 2-12 degrees, the taper of the clamping taper hole (14) is smaller than that of the clamping table (8), and the taper of the side surface of the clamping fixture block (15) is 10-15 degrees.
9. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 1, wherein: the diameter of the applicator is adjusted within the range of 20-35mm.
10. A multi-channel vaginal and cervical applicator with adjustable diameter as claimed in claim 1, wherein: the length of the applicator ranges from 100 mm to 140mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122945737.9U CN217612536U (en) | 2021-11-29 | 2021-11-29 | Multi-channel vagina and cervix applicator with adjustable diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122945737.9U CN217612536U (en) | 2021-11-29 | 2021-11-29 | Multi-channel vagina and cervix applicator with adjustable diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217612536U true CN217612536U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122945737.9U Active CN217612536U (en) | 2021-11-29 | 2021-11-29 | Multi-channel vagina and cervix applicator with adjustable diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217612536U (en) |
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2021
- 2021-11-29 CN CN202122945737.9U patent/CN217612536U/en active Active
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