A set of implanting needle applicators

An applicator and planting technology, which is applied in the fields of treatment, radiotherapy, X-ray/γ-ray/particle irradiation therapy, etc. Reduces procedural complexity, reduces patient tolerance, and avoids the effects of complex procedures

Active Publication Date: 2022-03-01
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can obtain high-precision molds for individual patients, but the vaginal modeling process is complex and inefficient. The repeatability is not completely guaranteed, and a patient may need to make molds many times
At present, there are also some fixed needle applicators, but these applicators use fixed needle guide holes, cannot change the position, and cannot obtain higher-precision dwell points
In addition, a problem with gynecological radiotherapy is that straight implant needles cannot reach lesions that deviate laterally from the vagina, and sometimes it is necessary to insert implant needles into the body from the perineum, causing great trauma and high pain to the patient.
At present, although there are flexible implant needles that can be bent and inserted into tissues, their application is greatly limited due to the lack of suitable applicators.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A set of implanting needle applicators
  • A set of implanting needle applicators
  • A set of implanting needle applicators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 3 , a set of needle applicators, including applicator sleeve 10 and positioning core 20.

[0039] The applicator sleeve is a cylindrical structure with openings at both ends, and the front end of the applicator sleeve is provided with a circle origin 11, which is used to display the circumferential position of the front end of the applicator sleeve in medical images (such as CT), and the circle origin Structural features that can be identified in medical images, or materials that reflect differently from the body of the applicator sheath in medical images can be used. In this embodiment, the front end of the applicator sleeve is provided with a slot 11 that can be recognized by medical images as the origin of the circle. The rear end of the applicator sleeve is provided with a circumferential positioning groove 12, and the circumferential positioning groove corresponds to the circumferential origin, that is, the circumferential origin coincide...

Embodiment 2

[0047] A set of needle applicators, this embodiment is an extension of the first embodiment.

[0048] Such as Figure 5 , the positioning guide hole of the 3D forming positioning core 20 is a curved positioning guide hole 21a, the curved positioning guide hole is provided with a curved section 20b, and the curved positioning guide hole is provided with a corner between the axis 27 of the rear end of the 3D forming positioning core and the axis 28 of the front end alpha.

[0049] The curved positioning guide hole 21a is suitable for using a flexible implanting needle, which is an implanting needle made of elastic plastic material and can produce a certain elastic bending. The flexible insertion needle can reach a wider range of radiotherapy dwelling points through the curved positioning guide hole. The scope of application of implantation needle radiotherapy is improved. For some implantation needle radiotherapy that originally needs to be inserted into the body from the peri...

Embodiment 3

[0051] A set of needle applicators, this embodiment is an alternative to the first embodiment.

[0052] Such as Figure 6 to Figure 9 , In this embodiment, another positioning core structure is adopted, and the positioning core is a plurality of sleeve positioning cores 30 . The positioning core of the sleeve is rotatably matched with the inner hole of the applicator sleeve, the rear end of the applicator sleeve is provided with a flange 14, and the end face of the flange is provided with an angle scale 13 indicating the circumferential angle. The rear end of the sleeve positioning core is also provided with a flange 35, and the flange 35 is provided with an angle pointer 33. The inner hole of each sleeve positioning core is provided with a guide sleeve 31 parallel to the axis of the applicator sleeve, and the positioning guide hole 21 is the inner hole of the guide sleeve. The guide sleeve 31 is connected to the inner wall of the sleeve positioning core through the guide sl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a set of needle applicators for inserting and planting needles, including an applicator sleeve inserted into the vagina. The front end of the applicator sleeve is provided with a circle origin, and a positioning core is arranged in the applicator sleeve. The positioning core is inserted into the applicator sleeve from the rear end of the applicator sleeve, the positioning core is provided with a positioning guide hole, and the implanting needle protrudes from the front end of the applicator sleeve through the positioning guide hole. The beneficial effects of the present invention are: using the applicator sleeve with versatility as the positioning reference in the vagina; using the 3D shaped positioning core, which can significantly reduce the operation complexity of implanting needle radiotherapy and reduce the patient's tolerance; using the sleeve The positioning core can no longer rely on vaginal images to make a 3D printed positioning core, which is versatile and can further improve efficiency and reduce costs. A set of sleeve positioning cores with different displacements of guide sleeves can obtain better positioning accuracy and support Multiple insertion needles are used, and the ball head rod with an expanded ball head can make the applicator sleeve more convenient and smoothly inserted into the vagina.

Description

technical field [0001] The invention belongs to radiotherapy equipment, in particular to a source applicator for inserting and planting needles in a set. Background technique [0002] Radiation therapy is one of the main treatment methods for cervical cancer. The use of implant needles as source applicators can make the radiation source directly enter the lesion area, and increase the radiotherapy dose of the lesion area without increasing the damage of surrounding normal tissues. Theoretically, it can be obtained The best radiotherapy effect, because there is no nerve touch at the bottom of the vagina, the use of implant needles is more minimally invasive, efficient, and less painful. It has become the main technical means of radiotherapy for cervical cancer. It can be used for radiotherapy of postoperative stumps and can also be used for Cancer patients who are not suitable for surgery. The main technical problem faced by implantation needle radiotherapy is the insertion ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10A61M36/10
CPCA61N5/1002A61N5/1007A61N5/1016
Inventor 于浪张福泉邱杰胡克晏俊芳杨波孙显松
Owner PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap