CN213158924U - Inserting needle source applicator template - Google Patents
Inserting needle source applicator template Download PDFInfo
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- CN213158924U CN213158924U CN202021174108.XU CN202021174108U CN213158924U CN 213158924 U CN213158924 U CN 213158924U CN 202021174108 U CN202021174108 U CN 202021174108U CN 213158924 U CN213158924 U CN 213158924U
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Abstract
The utility model provides an inserting needle applicator template, which comprises a vagina cylinder made by 3D printing and a perineum template made by 3D printing, wherein at least two first needle channels are arranged in the vagina cylinder, the two first needle channels are respectively arranged in an inclined way in the direction far away from the axis of the vagina cylinder, the needle inlet holes of the first needle channels are positioned on the outer end surface of the vagina cylinder, and the needle outlet holes of the first needle channels are positioned on the outer circumferential surface of the vagina cylinder; a plurality of second needle channels are arranged in the perineum template, a guide cylinder is arranged at each second needle channel, the extension directions of the guide cylinders and the second needle channels are the same, and a central hole of each guide cylinder is communicated with the second needle channel; the second needle channel is obliquely arranged in the perineum template; the perineum template is also provided with a reserved needle channel and a plurality of hollow holes, a guide cylinder is arranged at the reserved needle channel, and a central hole of the guide cylinder is communicated with the reserved needle channel. The utility model discloses can solve the difficult problem with human laminating and design individuation betterly.
Description
Technical Field
The utility model belongs to the technical field of brachytherapy, concretely relates to insert and plant needle applicator template.
Background
Cervical cancer is a common malignant tumor of women, and one of the current rescue treatment modes for the recurrent pelvic tumors is interstitial short-distance insertion post-implantation treatment. Classical intracavitary brachytherapy follows the principles of radiotherapy manchester system or paris system delivery, with applicators comprising uterine lumens (placed in the fundus) and intravaginal (ring or oval) tubes, also known as "triple-tube" aftertreatments. For patients with large cervical cancer tumors, patients with advanced local stages and recurrent patients with invaded lower vagina and the like, lesions may spread along the major ligament, the source distribution of the intracavity applicator cannot meet the prescription dose of all tumors, and better tumor dose distribution can be obtained only by inserting tissues so as to achieve better local control.
Classic Manchester intracavitary triple tube afterloading therapy has been in clinical use for decades, but has disadvantages: first, based on two-dimensional image-guided brachytherapy, the point dose is the prescription and the organ-at-risk reference dose limit. The acquisition of points is determined by pelvic cavity orthogonal X-ray films and special mark points, and the current tumor size and residual position of brachytherapy cannot be considered. Therefore, the mode has good treatment effect on small tumors (the diameter is less than 2cm), but the control rate is reduced for large tumors, when the tumor volume is larger than 30 cubic centimeters, the afterloading treatment dose of the intracavity applicator can not cover all tumors, and the application of tissue interpolation or the combined intracavity mode can obtain better dose distribution. The intracavity combined implantation applicator currently has Vienna, Wudele and Manchester types, and the like, and a simple tissue intercropping template is a planar template for intercropping tissues through perineum.
At present, aiming at gynecological tumors with central pelvic cavity recurrence and vaginal involvement, a planar template is inserted between tissues through perineum to carry out needle insertion from the perineum, the operation risk is high, in addition, professional training for operation is lacked, the number of radiotherapy units for developing the technology is small, the number of units for anesthesia conditions and imaging equipment is small, and the development of the technology is limited to a certain extent. Because the commercial template is basically applied to the afterloading brachytherapy of gynecological tumors, the planarization template is commonly adopted due to the lack of individuation characteristics, so that the gynecological tumor afterloading brachytherapy device has serious defects in the aspects of human body fit, needle compatibility, incapability of avoiding partial organs endangering by parallel needle tracks and individuation; moreover, the back-loading therapeutic machine is basically designed according to Western people, and a plurality of templates are wide and the models of applicators are thick, so that Asian patients cannot be treated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an insert and plant needle applicator template to solve the above-mentioned technical problem among the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an inserting needle applicator template comprises a vagina cylinder and a perineum template, wherein the vagina cylinder is manufactured by 3D printing, the perineum template is manufactured by 3D printing, the vagina cylinder and the perineum template form an integrated structure, the vagina cylinder is used for being attached to the vagina of a patient, and the perineum template is used for being attached to the perineum of the patient; the vagina column is internally provided with at least two first needle channels, the two first needle channels are respectively arranged in an inclined way in the direction far away from the axis of the vagina column, the needle inlet holes of the first needle channels are positioned on the outer end surface of the vagina column, and the needle outlet holes of the first needle channels are positioned on the outer circumferential surface of the vagina column; a plurality of second needle channels are arranged in the perineum template, a guide cylinder is arranged at each second needle channel, the extension directions of the guide cylinders and the second needle channels are the same, and a central hole of each guide cylinder is communicated with the second needle channel; the second needle channel is obliquely arranged in the perineum template, and the extension line of the central line of the second needle channel is crossed with the axis of the vaginal cylinder; the perineum template is further provided with a reserved needle channel and a plurality of hollow holes, a guide cylinder is arranged at the reserved needle channel, and a central hole of the guide cylinder is communicated with the reserved needle channel.
Preferably, the reserved needle channel is vertically arranged in the perineum template, and the guide cylinder is vertically arranged on the perineum template at the reserved needle channel.
Preferably, the inner end of the vaginal cylinder is of a hemispherical structure.
Preferably, the diameter of the first needle channel and the second needle channel is 1.6mm to 1.8 mm.
Preferably, the guide cylinder has an axial length of 19mm to 25 mm; the axial length of guide cylinder is 4mm to 6 mm.
Preferably, the guiding cylinder and the guiding cylinder are respectively formed into an integrated structure with the perineum template.
Preferably, the minimum distance between the central lines of two adjacent second needle tracks is 10 mm.
Preferably, the shape of the hollow hole is round or rectangular.
The beneficial effects of the utility model reside in that:
the utility model discloses an insert and plant needle applicator template, it no longer is the plane template, and it utilizes 3D printing technique to dissect and the vagina cylinder and the meeting negative template of pathological change individuation preparation according to the patient, can solve the difficult problem with human laminating and plan design individuation betterly, strong with the compatibility of needle, can realize that the non-coplane arranges needle way, individuation customization, and treatment repeatability is good, and the dose distribution uniformity is high. Meanwhile, the vagina cylinder made of the inserting needle source applicator template through 3D printing can be well attached to the vagina of a patient, and the perineum template made of the inserting needle source applicator template through 3D printing can be well attached to the perineum of the patient; the first needle channel and the second needle channel are obliquely arranged, so that personalized treatment requirements are more favorably realized; the guide cylinder is also obliquely arranged, so that the needle inserting direction is guided and the needle inserting depth is adjusted through the guide cylinder; the needle channel is reserved so that an operator can conveniently replant and insert a needle and adjust the needle inserting direction and depth according to the condition in the operation; the hollow holes are convenient for the surgeon to observe the fitting degree and the bleeding condition of the perineum template and the patient, and the perineum template can also be used as a supplementary emergency needle for needle insertion in the surgery.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments are briefly introduced below, and the detailed description of the embodiments of the present invention is further described with reference to the drawings, wherein
Fig. 1 is a schematic view of an insertion needle applicator template according to an embodiment of the present invention;
fig. 2 is another schematic view of an insertion needle applicator template according to an embodiment of the present invention;
fig. 3 is a schematic view of a vaginal cylinder according to an embodiment of the present invention.
In the drawings, the reference numbers:
11. vaginal cylinder 12, first needle passage 13, needle inlet hole 14 and needle outlet hole
15. Inner end 21, perineum template 22, second needle channel 23 and guide cylinder
24. Reserved needle path 25, guide cylinder 26 and hollow hole
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to specific embodiments.
As shown in fig. 1 to 3, an embodiment of the present invention provides an inserting needle applicator template, which includes a 3D printed vagina cylinder 11 and a 3D printed perineum template 21, wherein the vagina cylinder 11 and the perineum template 21 form an integrated structure, the vagina cylinder 11 is used for fitting the vagina of a patient, and the perineum template 21 is used for fitting the perineum of the patient; at least two first needle channels 12 are arranged in the vaginal cylinder, the two first needle channels 12 are respectively arranged in an inclined manner in the direction far away from the axis of the vaginal cylinder, needle inlet holes 13 of the first needle channels are positioned on the outer end surface of the vaginal cylinder, and needle outlet holes 14 of the first needle channels are positioned on the outer circumferential surface of the vaginal cylinder; a plurality of second needle channels 22 are arranged in the perineum template, a guide cylinder 23 is arranged at each second needle channel, the extension directions of the guide cylinders 23 and the second needle channels are the same, and the central hole of each guide cylinder is communicated with the second needle channel; the second needle channel 23 is obliquely arranged in the perineum template, and the extension line of the central line of the second needle channel is crossed with the axis of the vaginal cylinder; the perineum template is further provided with a reserved needle channel 24 and a plurality of hollow holes 26, a guide cylinder 25 is arranged at the reserved needle channel, and a central hole of the guide cylinder 25 is communicated with the reserved needle channel 24.
The embodiment of the utility model provides an insert and plant needle applicator template, it is no longer the plane template, and it utilizes 3D printing technique to dissect and the vagina cylinder and the negative template that can of pathological change individuation preparation according to the patient, can solve the difficult problem with human laminating and plan design individuation betterly, strong with the compatibility of needle, can realize that the non-coplane arranges needle way, individuation customization, and treatment repeatability is good, and the dose distribution uniformity is high. Meanwhile, the 3D printed vagina cylinder 11 of the implantation needle applicator template can be well attached to the vagina of a patient, and the 3D printed perineum template 21 can be well attached to the perineum of the patient; because the first needle channel 12 and the second needle channel 22 are obliquely arranged, the individualized treatment requirement is more favorably realized; the guide cylinder 23 is also obliquely arranged, so that the needle inserting direction is guided and the needle inserting depth is adjusted through the guide cylinder 23; the needle channel 24 is reserved for facilitating the operator to reseed and insert the needle and adjust the needle inserting direction and depth according to the condition in the operation; the hollow hole 26 is convenient for the operator to observe the fitting degree and bleeding condition of the perineum template and the patient, and can also be used as a supplementary emergency needle channel for needle insertion in the operation. It will be appreciated that the non-coplanar arrangement of needle tracks is achieved due to the angled disposition of the first and second needle tracks respectively.
Further, the reserved needle channel 24 is vertically arranged in the perineum template 21, and the guide cylinder 25 is vertically arranged on the perineum template at the reserved needle channel.
As shown in fig. 2, the inner tip 15 of the vaginal cylinder is of a hemispherical structure, so that the operator can push the vaginal cylinder 11 into the vagina conveniently to fit the vagina of the patient, and injury can be avoided.
Specifically, the diameters of the first needle channel 12 and the second needle channel 22 are 1.6mm to 1.8 mm. It may be preferred that the first needle track 12 and the second needle track 22 have a diameter of 1.7 mm.
Further, the axial length of the guide cylinder 23 is 19mm to 25 mm; the axial length of the guide cylinder is 4mm to 6mm, so that the requirement on the displacement precision of the distal end of the insertion needle inserted into each needle channel can be better met, and the axial length of the guide cylinder is preferably 20mm in consideration of the requirements on operation and precision; the axial length of the guide cylinder is 5 mm. It can be understood that, because the axial length of the guide cylinder 25 is shorter than that of the guide cylinder, the distal end displacement of the insertion needle inserted into the reserved needle channel is larger than that of the second needle channel, thereby being more convenient for an operator to reseed the insertion needle and adjust the insertion direction and depth according to the condition in the operation.
Specifically, the guiding cylinder 23 and the guiding cylinder 25 are respectively formed into an integrated structure with the perineum template, so that the inserting needle applicator template is manufactured by one-time printing through a 3D printing technology. It will be appreciated that the inserter applicator template is a non-rigid non-metallic material so as to be non-shielding from radioactivity.
Preferably, the minimum distance between the central lines of two adjacent second needle tracks is 10 mm. It can be understood that the perineal template has a thickness of 3mm at least 5mm beyond the guide cylinder and needle channel to ensure the rigidity of the perineal template according to the anatomical features of the patient.
It may be preferable that the shape of the hollow hole 25 is circular or rectangular. Of course, the shape of the hollow-out hole 25 may be any other irregular shape.
It can be understood that before the patient is treated, the information of the patient is scanned through CT positioning, the target area and the organs at risk are drawn, the prescription is given, the preplanning of the treatment containing the needle channel information of the inserting needle applicator template is made, and the 3D personalized printing of the inserting needle applicator template is carried out for clinic. During the transplanting, the needle inserting position and the depth are adjusted under the guidance of CT images according to a transplanting needle applicator template manufactured by preoperative planning and 3D personalized printing, intraoperative verification is carried out in real time, the repeatability is good, the dose difference among the times is small, the dose distribution is satisfactory, the treatment time of a patient is shortened, and the transplanting quality can be well controlled. Place this inserting needle applicator template in patient's perineum department earlier before the treatment, place patient's vagina mouth department in with the inner end 15 of vagina cylinder 11 to push away vagina cylinder 11 along the vagina, with the perineum template of fixed 3D printing preparation, slightly rotatory perineum template, from a plurality of fretwork holes 26 on the perineum template observation body surface laminating degree, make the vagina cylinder laminate patient's vagina, the laminating of perineum template and human perineum department. By utilizing the inserting needle source applicator template, a doctor can effectively guide the implantation of an inserting needle between tissues, the puncture risk is reduced through preoperative planning, the accuracy of the retreatment treatment is enhanced through the inserting implantation between tissues under the guidance of CT images, the dosage limit value of surrounding organs at risk is better evaluated, and the problem that the design and implementation of afterloading treatment plan cannot be individualized is effectively solved; the vagina cylinder made through 3D printing and the combination of meeting negative template, the vagina cylinder laminating patient's vagina, the perineum template and human laminating make things convenient for fixed implantation needle applicator template, and stability is good.
The above are only preferred embodiments of the present invention, and it should be noted that these examples are only used for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope defined by the claims attached to the present application.
Claims (8)
1. The template of the inserting needle applicator is characterized by comprising a vagina cylinder and a perineum template, wherein the vagina cylinder is manufactured by 3D printing, the perineum template is manufactured by 3D printing, the vagina cylinder and the perineum template form an integrated structure, the vagina cylinder is used for being attached to the vagina of a patient, and the perineum template is used for being attached to the perineum of the patient; the vagina column is internally provided with at least two first needle channels, the two first needle channels are respectively arranged in an inclined way in the direction far away from the axis of the vagina column, the needle inlet holes of the first needle channels are positioned on the outer end surface of the vagina column, and the needle outlet holes of the first needle channels are positioned on the outer circumferential surface of the vagina column; a plurality of second needle channels are arranged in the perineum template, a guide cylinder is arranged at each second needle channel, the extension directions of the guide cylinders and the second needle channels are the same, and a central hole of each guide cylinder is communicated with the second needle channel; the second needle channel is obliquely arranged in the perineum template, and the extension line of the central line of the second needle channel is crossed with the axis of the vaginal cylinder; the perineum template is further provided with a reserved needle channel and a plurality of hollow holes, a guide cylinder is arranged at the reserved needle channel, and a central hole of the guide cylinder is communicated with the reserved needle channel.
2. The inserting needle applicator template according to claim 1, wherein the reserved needle channel is vertically arranged in the perineum template, and the guide cylinder is vertically arranged on the perineum template at the reserved needle channel.
3. The inserter needle applicator template of claim 1 wherein the inner tip of the vaginal cylinder is of a hemispherical configuration.
4. The insertion needle applicator template of claim 1, wherein the first needle track and the second needle track have a diameter of 1.6mm to 1.8 mm.
5. The inserter needle applicator template of claim 1 wherein the axial length of the guide barrel is 19mm to 25 mm; the axial length of guide cylinder is 4mm to 6 mm.
6. The inserter needle applicator template of claim 1 wherein the guide cylinders are each formed as a unitary structure with the perineal template.
7. The inserter needle applicator template as recited in claim 1, wherein the minimum distance between the centerlines of two adjacent second needle tracks is 10 mm.
8. The inserter needle applicator template as recited in any one of claims 1 to 7, wherein the shape of the hollowed-out hole is circular or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174108.XU CN213158924U (en) | 2020-06-22 | 2020-06-22 | Inserting needle source applicator template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021174108.XU CN213158924U (en) | 2020-06-22 | 2020-06-22 | Inserting needle source applicator template |
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| Publication Number | Publication Date |
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| CN213158924U true CN213158924U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021174108.XU Active CN213158924U (en) | 2020-06-22 | 2020-06-22 | Inserting needle source applicator template |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244516A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
-
2020
- 2020-06-22 CN CN202021174108.XU patent/CN213158924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244516A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
| CN113244516B (en) * | 2021-07-05 | 2021-10-08 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
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