CN113081208B - Individualized pelvis support positioner - Google Patents
Individualized pelvis support positioner Download PDFInfo
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- CN113081208B CN113081208B CN202110374520.9A CN202110374520A CN113081208B CN 113081208 B CN113081208 B CN 113081208B CN 202110374520 A CN202110374520 A CN 202110374520A CN 113081208 B CN113081208 B CN 113081208B
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- sacrum
- positioning
- positioning part
- connecting rod
- shaped connecting
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- 210000004197 pelvis Anatomy 0.000 title abstract description 6
- 210000003689 pubic bone Anatomy 0.000 claims abstract description 21
- 210000002239 ischium bone Anatomy 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 4
- 210000004872 soft tissue Anatomy 0.000 abstract description 3
- 206010061336 Pelvic neoplasm Diseases 0.000 abstract description 2
- 210000003131 sacroiliac joint Anatomy 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 5
- 208000008765 Sciatica Diseases 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 210000001696 pelvic girdle Anatomy 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001981 hip bone Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 210000004994 reproductive system Anatomy 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a personalized pelvis support positioning device, which comprises: the sacrum positioning part, the L-shaped connecting rod, the arc-shaped connecting rod, the ischial positioning part and the pubis positioning part are arranged on the outer side of the sacrum positioning part, one end of the L-shaped connecting rod is connected with the bottom end face of the sacrum positioning part, and the other end of the L-shaped connecting rod is connected with the pubis positioning part; one end of the arc-shaped connecting rod is connected with one side surface of the sacrum positioning part, and the other end of the arc-shaped connecting rod is connected with the ischial positioning part; the advantages are that: the technical defects that the structure is single and the attaching surface with a patient is few in the prior art are overcome, and large errors are easily caused by a single positioning surface because soft tissues on the surface of a skeleton cannot be cleaned in an operation; the positioning device can be applied to auxiliary navigation in personalized semi-pelvic prosthesis surgery of pelvic tumor cases separated from sacroiliac joints.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a personalized pelvic support positioning device.
Background
The pelvis is a pelvis-shaped skeleton connecting the spine and the lower limbs, and is a complete bone ring formed by connecting the rear sacrum, the coccyx (two bones with the lowest spine) and the left and right hip bones. The pelvic ring is also an important indispensable path for the blood vessels, nerves and reproductive systems to pass through, so that serious injury of the pelvic ring can not only cause high fatality rate and disability rate. While early repositioning and fixation may improve prognosis.
Although the integrated guide plate in the prior art can be used for positioning assistance treatment during operation, the integrated guide plate still has the technical defects of single structure, large error, poor stability and the like.
Disclosure of Invention
The invention provides a personalized pelvis support positioning device, which aims to overcome at least one technical defect, so that the positioning device has the advantages of multiple binding surfaces with a patient, small error and stable positioning.
In order to achieve the above purpose, the invention provides the following technical scheme:
a personalized pelvis support positioning device comprises a sacrum positioning part, an L-shaped connecting rod, an arc-shaped connecting rod, a ischial positioning part and a pubis positioning part, wherein one end of the L-shaped connecting rod is connected with the bottom end surface of the sacrum positioning part, and the other end of the L-shaped connecting rod is connected with the pubis positioning part; one end of the arc-shaped connecting rod is connected with one side surface of the sacrum positioning part, and the other end of the arc-shaped connecting rod is connected with the ischial positioning part;
the sacrum positioning surface on the positioning part is attached to the sacrum ear surface, the ischial positioning surface on the ischial positioning part is attached to the ischial osteotomy surface, and the pubis positioning surface on the pubis positioning part is attached to the pubis osteotomy surface;
the sacrum positioning surface and the arc-shaped connecting rod are respectively positioned on two opposite surfaces of the sacrum positioning part.
Preferably, the sacrum positioning part is of a hexahedral structure, the top surface of the sacrum positioning part is a concave curved surface, the bottom surface of the sacrum positioning part is a horizontal osteotomy surface abutted with the sacral ala, and the upper end of the L shape is connected with the horizontal osteotomy surface; the arc connecting rod is connected with one side surface, and the other side surface opposite to the side surface is a sacrum positioning surface.
Furthermore, the sacrum positioning part and the ischia positioning part are respectively provided with at least one fixing hole for mounting a positioning screw, and the sacrum positioning part and the ischia positioning part are respectively fixed on the sacrum and the ischia;
the fixing holes are vertically arranged along the direction of the sacrum ear surface.
Furthermore, a plurality of screw positioning holes are formed in the sacrum positioning part, and the shape formed by the screw positioning holes is arc-shaped; the screw positioning holes are vertically arranged along the direction of the sacrum ear surface.
Preferably, the sacrum positioning surface is further provided with a sacral ala front limiting surface attached to the sacral ala and a sacral rear limiting surface attached to the sacral rear side.
Preferably, the sacrum positioning part, the L-shaped connecting rod, the arc-shaped connecting rod, the ischium positioning part, and the pubis positioning part are integrally formed by a 3D printing technology.
Preferably, one end of the sacral locating part on which the sacral ala front limiting surface is arranged is higher than one end on which the sacral posterior limiting surface is arranged.
The invention relates to a personalized pelvic support positioning device, which has the advantages that:
1. the technical defects that the structure is single and the attaching surface with a patient is few in the prior art are overcome, and large errors are easily caused by a single positioning surface because soft tissues on the surface of a skeleton cannot be cleaned in an operation; the positioning device can be applied to auxiliary navigation in personalized semi-pelvic prosthesis surgery for pelvic tumor cases separated from sacroiliac joints;
2. the shape design formed by a plurality of screw positioning holes can have an auxiliary positioning effect on the implantation of the prosthesis;
3. the structure design of the invention can realize space three-dimensional positioning, and the positioning device has good stability after positioning by combining the fixing hole;
4. the design of the horizontal osteotomy surface ensures that the device has the osteotomy guiding function;
5. the structure of the invention can adopt nylon materials and metal materials to carry out 3D printing production.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1-3 are schematic views of different perspective three-dimensional structures of a personalized pelvic support positioning device according to the invention;
FIG. 4 is a partial schematic structural view of a personalized pelvic support positioning device according to the invention;
FIG. 5 is a diagram illustrating a state of use of a personalized pelvic support positioning device according to the present invention;
wherein the figures include the following reference numerals:
a sacrum positioning part 1, a sacrum positioning surface 11, a sacrum front limiting surface 11a, a sacrum rear limiting surface 11b, a concave curved surface 12, a horizontal osteotomy surface 13, a positioning screw 14, a fixing hole 15 and a screw positioning hole 16;
an L-shaped connecting rod 2 and an arc-shaped connecting rod 3;
an ischial positioning part 4 and an ischial positioning surface 41;
a pubic positioning portion 5, a pubic positioning surface 51.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
According to fig. 1-3 and 5, the individualized pelvic support positioning device comprises a sacrum positioning part 1, an L-shaped connecting rod 2, an arc-shaped connecting rod 3, a ischial positioning part 4 and a pubis positioning part 5, wherein one end of the L-shaped connecting rod 2 is connected with the bottom end surface of the sacrum positioning part 1, and the other end of the L-shaped connecting rod is connected with the pubis positioning part 5; one end of the arc connecting rod 3 is connected with one side surface of the sacrum positioning part 1, and the other end is connected with the ischial positioning part 4, so that the positioning device realizes space three-dimensional positioning and has stronger stability in the use process; the sacrum, the ischium and the pubis are selected for 3-point positioning, the model dimension comprises a tumor resection range, and the prosthesis is similar to a triangle in shape, so that the positioning accuracy of the positioning device is further ensured;
the sacrum positioning surface 11 on the sacrum positioning part 1 is attached to the sacrum ear surface, the ischial positioning surface 41 on the ischial positioning part 4 is attached to the ischial osteotomy surface, the pubis positioning surface 51 on the pubis positioning part 5 is attached to the pubis osteotomy surface, and through three-point positioning, spatial three-dimensional positioning of the positioning device is realized, and meanwhile, the attachment surface of the positioning device and a patient is strengthened, so that the situation that large errors are easily generated on a single positioning surface due to the fact that soft tissues on the surface of a skeleton in an operation cannot be cleaned up is avoided; the sacrum positioning surface 11 and the arc-shaped connecting rod 3 are respectively positioned on two opposite surfaces of the sacrum positioning part 1.
In a specific embodiment, the sacrum positioning part 1 is of a hexahedral structure, the top surface of the sacrum positioning part is a concave curved surface 12, the bottom surface of the sacrum positioning part is a horizontal osteotomy surface 13 abutted against sacral ala, and the sacral ala is an upper osteotomy position, so that a pelvic support and bone are ensured not to interfere, the pelvic support is accurately positioned, and a prosthesis is accurately implanted; the upper end of the L-shaped connecting rod 2 is connected with the horizontal osteotomy surface 13; the arc-shaped connecting rod 3 is connected with one side surface of the hexahedral structure, and the other side surface opposite to the side surface is a sacrum positioning surface 11.
In a further specific embodiment, each of the sacrum positioning portions 1 and the ischial positioning portions 4 is provided with at least one fixing hole 15 for mounting a set screw 14, so as to fix the sacrum positioning portions 1 and the ischial positioning portions 4 to the sacrum and the ischial bones, respectively; the fixing holes 15 are vertically arranged along the direction of the sacrum ear surface, and preferably, two fixing holes 15 are arranged on the sacrum positioning part 1 and the ischial positioning part 4 so as to preliminarily fix the prosthesis on an affected part and avoid the prosthesis from shifting.
A plurality of screw positioning holes 16 are formed in the sacrum positioning part 1, and the shape formed by the screw positioning holes 16 is arc-shaped; the screw positioning holes 16 are vertically arranged along the direction of the sacrum ear surface, so that bone screws penetrate into the screw positioning holes 16, and the prosthesis is further fixed on the affected part along the direction of a plurality of the screw positioning holes 16, and in the process, the implantation position is more accurate.
In a specific embodiment, as shown in fig. 3 and 4, the sacrum positioning surface 11 is further provided with a sacrum ala front limiting surface 11a attached to the sacrum ala and a sacrum rear limiting surface 11b attached to the sacrum rear side, so that the sacrum positioning surface 11 is attached to the sacrum ear surface and the sacrum ear surface is limited in two directions, thereby further ensuring accurate positioning.
In a further specific embodiment, the sacrum positioning portion 1, the L-shaped connecting rod 2, the arc-shaped connecting rod 3, the ischial positioning portion 4, and the pubis positioning portion 5 are integrally formed by a 3D printing technology, and the materials may be produced by using titanium alloy, nylon, or other biological materials;
one end of the sacrum positioning part 1, which is provided with the sacrum front limiting surface 11a, is higher than one end of the sacrum rear limiting surface 11b, so that the sacrum positioning part is more suitable for the actual situation of a human body and is beneficial to limiting.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A personalized pelvic support positioning apparatus, comprising: the sacrum positioning part (1), an L-shaped connecting rod (2), an arc-shaped connecting rod (3), a ischial positioning part (4) and a pubis positioning part (5), wherein one end of the L-shaped connecting rod (2) is connected with the bottom end face of the sacrum positioning part (1), and the other end of the L-shaped connecting rod is connected with the pubis positioning part (5); one end of the arc connecting rod (3) is connected with one side surface of the sacrum positioning part (1), and the other end of the arc connecting rod is connected with the ischial positioning part (4);
the sacrum positioning surface (11) on the sacrum positioning part (1) is attached to the sacrum ear surface, the ischial positioning surface (41) on the ischial positioning part (4) is attached to the ischial osteotomy surface, and the pubis positioning surface (51) on the pubis positioning part (5) is attached to the pubis osteotomy surface;
the sacrum positioning surface (11) and the arc-shaped connecting rod (3) are respectively positioned on two opposite surfaces of the sacrum positioning part (1);
the sacrum positioning part (1) is of a hexahedral structure, the top surface of the sacrum positioning part is a concave curved surface (12), the bottom surface of the sacrum positioning part is a horizontal osteotomy surface (13) abutted against the sacral ala, and the upper end of the L-shaped connecting rod (2) is connected with the horizontal osteotomy surface (13); the arc-shaped connecting rod (3) is connected with one side surface of the arc-shaped connecting rod, and the other side surface opposite to the side surface is a sacrum positioning surface (11);
the sacrum positioning surface (11) is also provided with a sacrum pterygoid anterior limit surface (11a) attached to the sacrum pterygoid and a sacrum posterior limit surface (11b) attached to the sacrum posterior side.
2. The personalized pelvic support positioning apparatus of claim 1, wherein: the sacrum positioning part (1) and the ischium positioning part (4) are respectively provided with at least one fixing hole (15) for installing a positioning screw (14) for fixing the sacrum positioning part (1) and the ischium positioning part (4) to the sacrum and the ischium respectively;
the fixing holes (15) are vertically arranged along the direction of the sacrum ear surface.
3. The personalized pelvic support positioning apparatus of claim 1, wherein: a plurality of screw positioning holes (16) are formed in the sacrum positioning part (1), and the shape formed by the screw positioning holes (16) is arc-shaped; the screw positioning holes (16) are vertically arranged along the direction of the sacrum ear surface.
4. The personalized pelvic support positioning apparatus of claim 1, wherein: the sacrum positioning part (1), the L-shaped connecting rod (2), the arc-shaped connecting rod (3), the ischial positioning part (4) and the pubis positioning part (5) are integrally formed through a 3D printing technology.
5. The personalized pelvic support positioning apparatus of claim 1, wherein: one end of the sacrum positioning part (1) provided with a sacrum front limit surface (11a) is higher than one end provided with the sacrum rear limit surface (11 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374520.9A CN113081208B (en) | 2021-04-07 | 2021-04-07 | Individualized pelvis support positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110374520.9A CN113081208B (en) | 2021-04-07 | 2021-04-07 | Individualized pelvis support positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113081208A CN113081208A (en) | 2021-07-09 |
| CN113081208B true CN113081208B (en) | 2022-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110374520.9A Active CN113081208B (en) | 2021-04-07 | 2021-04-07 | Individualized pelvis support positioner |
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| CN (1) | CN113081208B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016202333B3 (en) * | 2016-02-16 | 2017-08-03 | Waldemar Link Gmbh & Co. Kg | Implant for reconstruction of an acetabular cup |
| CN207821951U (en) * | 2017-05-31 | 2018-09-07 | 沈靖南 | A kind of artificial semi-pelvis prosthesis |
| CN209933074U (en) * | 2019-01-22 | 2020-01-14 | 上海昕健医疗技术有限公司 | Personalized double-wing acetabulum prosthesis |
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- 2021-04-07 CN CN202110374520.9A patent/CN113081208B/en active Active
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| CN113081208A (en) | 2021-07-09 |
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| CB03 | Change of inventor or designer information |
Inventor after: Ding Zhenxun Inventor after: Li Mingyang Inventor after: Shi Chunsheng Inventor after: Kang Shujing Inventor after: Xu Kuixue Inventor after: Zhang Chaofeng Inventor after: Liu Xiaowei Inventor after: Li Xiaona Inventor before: Li Mingyang Inventor before: Shi Chunsheng Inventor before: Kang Shujing Inventor before: Xu Kuixue Inventor before: Zhang Chaofeng Inventor before: Liu Xiaowei Inventor before: Li Xiaona |
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