CN110090071A - A kind of fixed connecting sleeve of backbone - Google Patents
A kind of fixed connecting sleeve of backbone Download PDFInfo
- Publication number
- CN110090071A CN110090071A CN201910474722.3A CN201910474722A CN110090071A CN 110090071 A CN110090071 A CN 110090071A CN 201910474722 A CN201910474722 A CN 201910474722A CN 110090071 A CN110090071 A CN 110090071A
- Authority
- CN
- China
- Prior art keywords
- stick
- bar
- sleeve pipe
- inner hole
- fixed connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
- A61B17/705—Connectors, not bearing on the vertebrae, for linking longitudinal elements together for linking adjacent ends of longitudinal elements
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of fixed connecting sleeves of backbone, including casing, stick and nut, described sleeve pipe one end is equipped with inner hole and external screw thread, the other end is outwardly protruded equipped with bar A, the inner hole is inserted into described stick one end, insertion bore section and inner hole are set as rotation stop form, the stick is only allowed to slide axially with respect to described sleeve pipe, do not allow to rotate and shake, the stick other end is outwardly protruded equipped with bar B, the insertion portion and bar B intersection are equipped with step, the nut is placed on the bar B, and it is connect with the external screw thread of described sleeve pipe, the insertion portion of the stick is pushed into the inner hole, play the pressurization of both ends distance of fracturing that furthers in art, and prevent stick with casing from being detached from, the bar A and bar B are connect with the pedicle nail at fracture line both ends respectively, supporting element is equipped between described sleeve pipe and stick, the supporting element It is set as absorbable material or elastic material.
Description
Technical field
The present invention relates to medical instruments field, especially a kind of fixed connecting sleeve of backbone
Background technique
Spine fixator being commonly used in spinal injury operation, treatment being fixed to backbone, the spine fixator generally wraps
It includes vertical connection stick and pedicle nail, the vertical stick is integrated stick, the pedicle nail at least needs 2 pieces, squeezes into spinal bone respectively
Then the vertebra at broken line both ends is connect with vertical connection stick with two nail pedicle fix, to fix the backbone at fracture line both ends, reach solid
Surely the purpose treated, however, this fixed form haves the defects that healing is slower, according to the growing principle of union, if
It can allow between fracture face and generate the pressure of discontinuity, its healing acceleration can be promoted, shorten healing time.
Summary of the invention
It is fixed the invention discloses a kind of backbone and overcomes drawbacks described above with connecting sleeve, a kind of backbone is fixed to be connected
Female connector pipe replaces the vertical connecting bar, and the pedicle nail of spinal bone broken line both ends vertebra is squeezed into connection, has the spine fixator
There is the function of allowing between fracture face and generate discontinuity pressure.The fixed connecting sleeve of a kind of backbone, including casing, stick and spiral shell
Cap, described sleeve pipe one end are equipped with the inner hole and external screw thread in the same direction with casing axis, and the other end is outwardly protruded equipped with bar A, the stick
The inner hole is inserted into one end, and insertion bore section and inner hole are set as rotation stop form, such as rectangular, flower-shape, rotation stop pin rotation stop
Structure, only allows the stick to slide axially with respect to described sleeve pipe, does not allow to rotate and shake, the stick other end, which outwardly protrudes, to be set
There is bar B, the insertion portion and bar B intersection are equipped with step, and bar B is radially less than the insertion portion, and the nut is placed on institute
It states on bar B, and is connect with the external screw thread of described sleeve pipe, the insertion portion of the stick is pushed into the inner hole, plays in art and draws
The pressurization of nearly fracture both ends distance, and prevent stick with casing from being detached from, the bar A and bar B respectively with fracture line both ends
Pedicle nail connection, it is characterised in that between described sleeve pipe and stick be equipped with supporting element, the supporting element be set as absorbable material or
Elastic material.
The absorbable material is set as polylactic acid or magnesium titanium alloy, and the elastic material is set as can be used for being implanted into the note of human body
Recall alloy.
For comminuted fracture patient, postoperative general 3 months inner fracture faces cannot withstand self gravity, after 3 months
It can bear, promote union to enable the patient to Go to ground activity as early as possible, use " absorbable material " supporting element, be padded on the set
Between pipe and stick, " absorbable material " supporting element has the intensity of support patient body weight, and implantation starts point after human body 3 months
Solution is absorbed by the body, thus postoperative patient can Go to ground activity, at this moment fracture face can gentle touchdown can stimulate bone growth, 3
" absorbable material " is gradually absorbed by the body after month, and space is at this moment generated between described sleeve pipe and stick, when patient's standing activity,
Own wt can discontinuously pressurize to fracture face and promote rapid healing of fracture." absorbable material " the supports support height is
2 millimeters are advisable.
For non-comminuted fracture patient, fracture face can bear lesser pressure, use elastic material as supporting element pad
Between described sleeve pipe and stick, patient's own body weight power is born in postoperative assistance fracture face, can make patient is postoperative can erect activity
To promote union.Resilient material part is set as spring, plurality of specifications can be arranged according to patient's weight difference and select for doctor
It selects.
Detailed description of the invention
Fig. 1 is a kind of seperated modular construction schematic diagram of the fixed connecting sleeve of backbone of the present invention；
Fig. 2 is a kind of overall structure diagram of the fixed connecting sleeve of backbone of the present invention.
Specific embodiment:
Fig. 2 shows a kind of specific embodiment of the fixed connecting sleeve of backbone of the invention, a kind of backbones by Fig. 1-
Fixed connecting sleeve, including casing 1, stick 3 and nut 4,1 one end of described sleeve pipe be equipped with the inner hole in the same direction with 1 axis of casing and
External screw thread, the other end are outwardly protruded equipped with bar A, and the inner hole is inserted into described 3 one end of stick, and insertion bore section is set with inner hole
For rotation stop form, such as rectangular, flower-shape, rotation stop pin spline structure, the opposite described sleeve pipe of the stick 3 is only allowed to slide axially, no
Allowing to rotate and shake, 3 other end of stick is outwardly protruded equipped with bar B, and the insertion portion and bar B intersection are equipped with step,
Bar B is radially less than the insertion portion, and the nut 4 is placed on the bar B, and connect with the external screw thread of described sleeve pipe 1, will
The insertion portion of the stick 3 is pushed into the inner hole, plays the pressurization of both ends distance of fracturing that furthers in art, and make stick 3 and set
Pipe 1 cannot be detached from, and the bar A and bar B are connect with the pedicle nail at fracture line both ends respectively, it is characterised in that described sleeve pipe 1 with
Supporting element 2 is equipped between stick 3, the supporting element 2 is set as absorbable material or elastic material.The absorbable material is set as poly- cream
Acid or magnesium titanium alloy, the elastic material are set as can be used for being implanted into the memorial alloy of human body.It is postoperative for comminuted fracture patient
General 3 months inner fracture faces cannot withstand self gravity, can just bear after 3 months, to enable the patient to Go to ground activity as early as possible
Promote union, uses " absorbable material " supporting element, be padded between described sleeve pipe 1 and stick 3, " absorbable material " supporting element
Intensity with support patient body weight, implantation, which starts to decompose after human body 3 months, to be absorbed by the body, therefore postoperative patient
Go to ground activity, face meeting gentle touchdown of at this moment fracturing can stimulate bone growth, and " absorbable material " is gradually inhaled by human body after 3 months
It receives, at this moment generates space between described sleeve pipe 1 and stick 3, when patient's standing activity, own wt can be discontinuously to the pressurization of fracture face
And promote rapid healing of fracture." absorbable material " the supports support height, which is 2 millimeters, to be advisable.
For non-comminuted fracture patient, fracture face can bear lesser pressure, use elastic material as supporting element pad
Between described sleeve pipe 1 and stick 3, patient's own body weight power is born in postoperative assistance fracture face, can make patient is postoperative can erect work
It moves to promote union.Resilient material part is set as spring, and plurality of specifications can be arranged according to patient's weight difference for doctor
Selection.
Claims (5)
1. a kind of fixed connecting sleeve of backbone, including casing (1), stick (3) and nut (4), described sleeve pipe (1) one end is equipped with interior
Hole and external screw thread, the other end are outwardly protruded equipped with bar A, and inner hole is inserted into described stick (3) one end, and the other end is outwardly protruded equipped with bar B,
Stick (3) the insertion bore section and bar B intersection are equipped with step, and the nut (4) is placed on the bar B and described sleeve pipe
(1) the insertion bore section of the stick (3) is pushed into the inner hole by external screw thread connection, the bar A and bar B respectively with fracture
The pedicle nail at line both ends connects, it is characterised in that is equipped with supporting element (2) between described sleeve pipe (1) and stick (3).
2. the fixed connecting sleeve of a kind of backbone according to claim 1, it is characterised in that the stick (3) is inserted into bore section
Rotation stop form is set as with inner hole.
3. the fixed connecting sleeve of a kind of backbone according to claim 1, it is characterised in that the supporting element (2) is set as to inhale
Receive material or elastic material.
4. the fixed connecting sleeve of a kind of backbone according to claim 3, it is characterised in that the absorbable material supporting element
Bearing height is 2 millimeters.
5. the fixed connecting sleeve of a kind of backbone according to claim 3, it is characterised in that the resilient material part root
According to patient's weight difference, plurality of specifications is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474722.3A CN110090071A (en) | 2019-06-03 | 2019-06-03 | A kind of fixed connecting sleeve of backbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474722.3A CN110090071A (en) | 2019-06-03 | 2019-06-03 | A kind of fixed connecting sleeve of backbone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110090071A true CN110090071A (en) | 2019-08-06 |
Family
ID=67450035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910474722.3A Withdrawn CN110090071A (en) | 2019-06-03 | 2019-06-03 | A kind of fixed connecting sleeve of backbone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110090071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419369A (en) * | 2020-04-03 | 2020-07-17 | 董谢平 | Hinged pedicle screw with neutral bracing pressure and static-to-dynamic self-rotation-converted fixed state |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050203517A1 (en) * | 2003-09-24 | 2005-09-15 | N Spine, Inc. | Spinal stabilization device |
| US20070270855A1 (en) * | 2006-04-06 | 2007-11-22 | Lotus Medical, Llc | Active compression to facilitate healing of bones |
| US20070276366A1 (en) * | 2006-05-11 | 2007-11-29 | Gaines Robert W Jr | Use of bioabsorbable materials for anterior extradiscal correction of thoracolumbar pathologies |
| KR200440871Y1 (en) * | 2007-03-27 | 2008-07-04 | 정연문 | Spinal fixation preserves mobility |
| CN101605501A (en) * | 2006-12-21 | 2009-12-16 | Ldr医疗公司 | Vertebral support device |
| CN101785695A (en) * | 2010-01-31 | 2010-07-28 | 赵胜 | Automatic-extending and anti-revolving scoliosis correcting system |
| CN107049453A (en) * | 2017-03-29 | 2017-08-18 | 石鹏 | A kind of spinal column internal fixation device |
| CN108577954A (en) * | 2018-02-13 | 2018-09-28 | 哈尔滨医科大学 | The restricted dynamic fixation device of internal absorbability lumbar vertebrae |
| CN210277319U (en) * | 2019-06-03 | 2020-04-10 | 山东航维骨科医疗器械股份有限公司 | Connecting sleeve for fixing spine |
-
2019
- 2019-06-03 CN CN201910474722.3A patent/CN110090071A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050203517A1 (en) * | 2003-09-24 | 2005-09-15 | N Spine, Inc. | Spinal stabilization device |
| CN101170952A (en) * | 2003-09-24 | 2008-04-30 | 恩斯派恩股份有限公司 | Spinal stabilization device |
| CN101636118A (en) * | 2003-09-24 | 2010-01-27 | N脊椎公司 | spinal stabilization device |
| US20070270855A1 (en) * | 2006-04-06 | 2007-11-22 | Lotus Medical, Llc | Active compression to facilitate healing of bones |
| US20070276366A1 (en) * | 2006-05-11 | 2007-11-29 | Gaines Robert W Jr | Use of bioabsorbable materials for anterior extradiscal correction of thoracolumbar pathologies |
| CN101605501A (en) * | 2006-12-21 | 2009-12-16 | Ldr医疗公司 | Vertebral support device |
| KR200440871Y1 (en) * | 2007-03-27 | 2008-07-04 | 정연문 | Spinal fixation preserves mobility |
| CN101785695A (en) * | 2010-01-31 | 2010-07-28 | 赵胜 | Automatic-extending and anti-revolving scoliosis correcting system |
| CN107049453A (en) * | 2017-03-29 | 2017-08-18 | 石鹏 | A kind of spinal column internal fixation device |
| CN108577954A (en) * | 2018-02-13 | 2018-09-28 | 哈尔滨医科大学 | The restricted dynamic fixation device of internal absorbability lumbar vertebrae |
| CN210277319U (en) * | 2019-06-03 | 2020-04-10 | 山东航维骨科医疗器械股份有限公司 | Connecting sleeve for fixing spine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419369A (en) * | 2020-04-03 | 2020-07-17 | 董谢平 | Hinged pedicle screw with neutral bracing pressure and static-to-dynamic self-rotation-converted fixed state |
| CN111419369B (en) * | 2020-04-03 | 2024-04-12 | 董谢平 | Articulated pedicle screw with neutral support and compression and self-conversion from static to dynamic fixed state |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190806 |
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| WW01 | Invention patent application withdrawn after publication |