CN109965956B - Pelvis tensioner - Google Patents
Pelvis tensioner Download PDFInfo
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- CN109965956B CN109965956B CN201910390200.5A CN201910390200A CN109965956B CN 109965956 B CN109965956 B CN 109965956B CN 201910390200 A CN201910390200 A CN 201910390200A CN 109965956 B CN109965956 B CN 109965956B
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- pelvis
- sheet
- positioning
- connecting frame
- shaped connecting
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- 210000004197 pelvis Anatomy 0.000 title claims abstract description 44
- 210000003692 ilium Anatomy 0.000 claims abstract description 6
- 210000004061 pubic symphysis Anatomy 0.000 claims abstract description 5
- 210000001624 hip Anatomy 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 210000003689 pubic bone Anatomy 0.000 description 5
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000003049 pelvic bone Anatomy 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (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)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention relates to a pelvis tensioner, which structurally comprises a C-shaped connecting frame, two groups of pelvis front positioning components and two groups of pelvis rear positioning components; the pelvis front positioning assembly comprises a front fixing sheet, a tensioning needle and a front connecting sheet, wherein the front fixing sheet is used for being fixed at the pubic symphysis, the tensioning needle is of a screw structure with a ball head at the bottom end, and the bottom end of the tensioning needle is connected with an upper spherical pair of the front fixing sheet; the pelvis back positioning assembly comprises a back fixing sheet, a positioning column and a back connecting sheet, wherein the back fixing sheet is used for being fixed at the pelvic ilium ridge of the corresponding side, the bottom end of the positioning column is fixedly connected with the top end of the back fixing sheet, and the front connecting sheet and the back connecting sheet are both positioned at the corresponding positions of the C-shaped connecting frame. The invention has simple structure, convenient use and small operation wound surface, and is suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a pelvis tensioner.
Background
The pelvis is expanded due to fracture, pregnancy and other reasons, especially the pelvis is expanded and widened or pubic bone is separated during female production, important blood vessel nerves which are important organs and govern lower limbs are arranged in the pelvis, so that pain of pubic bone, waist, crotch and leg roots can be caused, normal actions can be seriously influenced, disability of a patient is caused, and the like, and therefore, the damaged pelvis is usually required to be corrected and reset.
The prior pelvis correction and restoration device has the defects of complex structure, inconvenient operation, large wound surface, and serious influence on the normal life self-care ability of a patient in the recovery period because the patient cannot walk through dressing after applying the device due to the large weight and volume of the device, and the restoration effect is also unsatisfactory.
Disclosure of Invention
The invention aims to provide a pelvis tensioner which aims to solve the problems of complex structure, inconvenient use and large surgical wound surface of the existing apparatus.
The invention is realized in the following way: the pelvis tensioner comprises a C-shaped connecting frame, two groups of pelvis front positioning components and two groups of pelvis rear positioning components, wherein the C-shaped connecting frame is an external connecting frame with an opening which is backwards enclosed between waists;
the pelvis front positioning assembly comprises a front fixing sheet, a tensioning needle and a front connecting sheet, wherein the front fixing sheet is used for being fixed at a pubic symphysis, the tensioning needle is of a screw structure with a ball head at the bottom end, the bottom end of the tensioning needle is connected with an upper spherical pair of the front fixing sheet, one end of the front connecting sheet is in threaded connection with the top of the tensioning needle, and the other end of the front connecting sheet is positioned at a corresponding position of the C-shaped connecting frame;
the pelvis back positioning assembly comprises a back fixing plate, a positioning column and a back connecting plate, wherein the back fixing plate is used for being fixed at the pelvic ilium ridge of the corresponding side, the bottom end of the positioning column is fixedly connected with the top end of the back fixing plate, one end of the back connecting plate is fixedly sleeved with the positioning column, and the other end of the back connecting plate is fixedly connected to the corresponding position of the C-shaped connecting frame through a screw.
The C-shaped connecting frame is of a rigid carbon fiber rod or carbon fiber tube structure.
The front fixing piece and the rear fixing piece are fixed on the corresponding bone blocks through screws.
The front connecting piece is provided with a screw hole, and the front connecting piece is fixed at the corresponding position of the C-shaped connecting frame through a screw.
The front connecting piece is provided with a positioning hook, and is connected to the corresponding position of the C-shaped connecting frame through the positioning hook.
The invention has simple structure, convenient use, light material, high strength and convenient carrying and walking, and the C-shaped connecting frame accords with the human body curve, and does not influence the normal action of a patient. The C-shaped connecting frame surrounds and spans the waist, two groups of pelvis front positioning components and two groups of pelvis rear positioning components are connected into a whole, and the pelvis is pulled to the middle through interaction force between the components, so that a good correcting and resetting effect is achieved.
The front fixing piece and the rear fixing piece are positioned in the body, and most other components are positioned outside the body, so that the operation is convenient, the wound surface is small, and the device is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the assembly process of the pelvic anterior positioning assembly of fig. 1.
Fig. 3 is a schematic view of the assembly process of the posterior pelvic positioning assembly of fig. 1.
In the figure: 1. c-shaped connecting frame, 2, front fixing piece, 3, tensioning needle, 4, front connecting piece, 5, back fixing piece, 6, reference column, 7, back connecting piece, 8, stress piece, 9, broken line type locating plate, 10, nut, 11, push-up nail, 12, right angle type locating plate, 13, push-up screw.
Detailed Description
As shown in fig. 1 to 3, the structure of the invention comprises a C-shaped connecting frame 1, two groups of pelvis front positioning components and two groups of pelvis rear positioning components, wherein the C-shaped connecting frame 1 is an external connecting frame with an opening facing backwards and encircling a waist, can be made of carbon fiber materials, is in a rigid rod-shaped or tubular structure, has light weight and high strength, is suitable for the curves between the waists of human bodies, and can be of different sizes.
The pelvis front positioning component comprises a front fixing plate 2, a tensioning needle 3 and a front connecting plate 4, the front fixing plate 2 is fixed at the pubic symphysis through a screw, the tensioning needle 3 is of a screw structure with a ball head at the bottom, the bottom of the tensioning needle is connected with the upper spherical pair of the front fixing plate 2, and the tensioning needle 3 can freely rotate. One end of the front connecting piece 4 is in threaded connection with the top of the tensioning needle 3, the other end of the front connecting piece 4 is positioned at a corresponding position of the C-shaped connecting frame 1, a screw hole can be formed in the end of the front connecting piece 4, the front connecting piece is fixedly connected with the C-shaped connecting frame 1 through a screw, and a positioning hook can be arranged and can be directly hooked on the C-shaped connecting frame 1.
The pelvis back positioning component comprises a back fixing piece 5, a positioning column 6 and a back connecting piece 7, wherein the back fixing piece 5 is fixed at the pelvic ilium ridge of the corresponding side through a screw, the positioning column 6 and the back fixing piece 7 can be of an integrated structure, the bottom end of the positioning column is fixedly connected with the top end of the back fixing piece 5, one end of the back connecting piece 7 is fixedly sleeved with the positioning column 6, and the other end of the back connecting piece 7 is fixedly connected to the corresponding position of the C-shaped connecting frame 1 through a screw.
When the pelvis positioning device is applied, a group of pelvis front positioning components are respectively positioned at two sides of the pelvis pubic symphysis, a group of pelvis rear positioning components are respectively positioned at the ilium positions at two rear sides of the pelvis, the components are connected into a whole by the C-shaped connecting frame 1, and the pelvis is tensioned towards the middle by the interaction force among the components, so that the C-shaped connecting frame 1 is automatically positioned between the waist of a patient without other auxiliary fixing instruments, and the pelvis positioning device is more convenient.
In order to accurately reposition the exogenously expanded pelvis during surgery, the present invention operates with the aid of a pre-pelvic assist and a post-pelvic assist.
Specifically, the front auxiliary piece comprises two stress plates 8 provided with U-shaped grooves, a broken line type positioning plate 9, two nuts 10 capable of being in threaded connection with the tensioning needle 3 and two pushing nails 11, the U-shaped grooves of the two stress plates 8 are opposite in advance, one end of the broken line type positioning plate 9 is connected with the butt joint ends of the two stress plates 8 through screws, the two stress plates 8 and the broken line type positioning plate 9 are fixed into a whole, pushing holes are respectively formed in the outer end faces of the two stress plates 8, and the pushing nails 11 are connected in the pushing holes. At the position of
When the device is used, the two front fixing sheets 2 of the two groups of pelvis front positioning components are respectively fixed on the corresponding pubis of pubis, the two tensioning needles 3 respectively penetrate through the U-shaped grooves of the corresponding stress pieces 8, meanwhile, the other ends of the fold line type positioning plates 9 are fixedly connected with the C-shaped connecting frames 1, the nuts 10 are screwed onto the tensioning needles 3, the outer diameters of the nuts 10 are larger than the width of the U-shaped grooves of the stress pieces 8, the lifting heights of the tensioning needles 3 are adjusted through the positions of the adjusting nuts 10, the tail ends of the pushing nails 11 are abutted against the side surfaces of the corresponding tensioning nails 3, the pushing depth of the pushing nails 11 is adjusted to control the distance between the two tensioning nails 3, further, the two pubis accurately abutted, after adjustment is finished, the tensioning nails 3 and the C-shaped connecting frames 1 are fixedly connected through the front connecting sheets 2, and finally, the stress pieces 8 and the fold line type positioning plates 9 are removed.
The back auxiliary assembly comprises a right-angle positioning plate 12 and a pushing screw 13, wherein a U-shaped groove is formed in one plate surface of the right-angle positioning plate 12, a screw hole is formed in the other plate surface of the right-angle positioning plate 12, when the back auxiliary assembly is used, a back fixing plate 5 is fixed at the position of the pelvic ilium ridge, a positioning column 6 penetrates through the U-shaped groove of the right-angle positioning plate 12, two sides of the U-shaped groove of the right-angle positioning plate are fixedly connected with a C-shaped connecting frame 1, the pushing screw 13 penetrates through the screw hole of the right-angle positioning plate 12, the tail end of the pushing screw 13 abuts against the outer side surface of the back fixing plate 5, the inward tightening position of the pelvic bone is controlled by adjusting the pushing depth of the pushing screw 13, the other side of the pelvis is positioned by the back positioning assembly in the same mode, after the reset is adjusted, the positioning column 6 is fixedly connected with the C-shaped connecting frame 1 by utilizing the back connecting sheet 7, and finally the right-angle positioning plate 12 and the pushing screw 13 are removed. The pelvis external fixing frame, the steel plate clung to the bone should be removed after the treatment is finished.
Claims (3)
1. The pelvis tensioner is characterized by comprising a C-shaped connecting frame, two groups of pelvis front positioning components and two groups of pelvis rear positioning components, wherein the C-shaped connecting frame is an external connecting frame with an opening backwards encircling a waist; the C-shaped connecting frame is of a rigid carbon fiber rod or carbon fiber tube structure;
the pelvis front positioning assembly comprises a front fixing sheet, a tensioning needle and a front connecting sheet, wherein the front fixing sheet is used for being fixed at a pubic symphysis, the tensioning needle is of a screw structure with a ball head at the bottom end, the bottom end of the tensioning needle is connected with an upper spherical pair of the front fixing sheet, one end of the front connecting sheet is in threaded connection with the top of the tensioning needle, and the other end of the front connecting sheet is positioned at a corresponding position of the C-shaped connecting frame;
the pelvis rear positioning assembly comprises a rear fixing plate, a positioning column and a rear connecting plate, wherein the rear fixing plate is used for being fixed at the pelvic ilium ridge on the corresponding side, the bottom end of the positioning column is fixedly connected with the top end of the rear fixing plate, one end of the rear connecting plate is fixedly sleeved with the positioning column, and the other end of the rear connecting plate is fixedly connected to the corresponding position of the C-shaped connecting frame through a screw;
the front fixing piece and the rear fixing piece are fixed on the corresponding bone blocks through screws.
2. The pelvis tensioner as in claim 1, wherein the front connecting piece is provided with a screw hole, and the front connecting piece is fixed at a corresponding position of the C-shaped connecting frame by a screw.
3. The pelvis tensioner as in claim 1, wherein the front attachment tab is provided with a locating hook by which the front attachment tab is attached to a corresponding location of the C-shaped connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390200.5A CN109965956B (en) | 2019-05-10 | 2019-05-10 | Pelvis tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390200.5A CN109965956B (en) | 2019-05-10 | 2019-05-10 | Pelvis tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109965956A CN109965956A (en) | 2019-07-05 |
| CN109965956B true CN109965956B (en) | 2023-11-14 |
Family
ID=67073345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910390200.5A Active CN109965956B (en) | 2019-05-10 | 2019-05-10 | Pelvis tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109965956B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643248B (en) * | 2020-06-30 | 2022-04-08 | 中国人民解放军空军军医大学 | Mechanical adjustment bone joint fixing device |
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| CN2090688U (en) * | 1990-11-27 | 1991-12-18 | 董谢平 | Repositing and fixing device for human pelvis |
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| CN219397523U (en) * | 2022-12-29 | 2023-07-25 | 天津医科大学总医院 | A short-range closed-loop fixation device and system for the pelvis based on the intramedullary nail in the descending pubic bone |
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| CN109965956A (en) | 2019-07-05 |
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