CN110101419A - A kind of device for spreading being adapted to pedicle screw - Google Patents
A kind of device for spreading being adapted to pedicle screw Download PDFInfo
- Publication number
- CN110101419A CN110101419A CN201910344422.3A CN201910344422A CN110101419A CN 110101419 A CN110101419 A CN 110101419A CN 201910344422 A CN201910344422 A CN 201910344422A CN 110101419 A CN110101419 A CN 110101419A
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- CN
- China
- Prior art keywords
- plier
- sleeve
- adjustment bar
- spreading
- bar
- 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.)
- Pending
Links
- 230000007480 spreading Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims description 13
- 210000003781 tooth socket Anatomy 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 7
- 210000000080 chela (arthropods) Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 210000005036 nerve Anatomy 0.000 description 6
- 241001448725 Endorchis Species 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000004705 lumbosacral region Anatomy 0.000 description 1
- 210000002418 meninge Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000009466 transformation Effects 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, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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 present invention discloses a kind of device for spreading for being adapted to pedicle screw, including handle and plier, the movable end setting limit rack gear of the handle, reset spring is set on the inside of handle, handle position is fixed in reset spring and limit rack work cooperation, and the plier includes plier ontology and sleeve, and the sleeve is arranged in a mutually vertical manner with plier ontology, the sleeve is rotatably connected with plier ontology, and the plier ontology is set as bendable folded structure.The present invention uses the setting of angle-adjusting mechanism, and plier three parts of part point of device for spreading are adjusted to the angle of device for spreading.Therefore, the present invention not only adapts to use in the case that different screw fixed-directions, angle are different, moreover it is possible to use in the case where the size, depth difference, angle difference that adapt to patient incision.
Description
Technical field
The invention belongs to technical field of medical equipment, and in particular to a kind of device for spreading for being adapted to pedicle screw.
Background technique
Lumbar spine posterior Pedicle screw-stick is fixed, and fusion is at present to solve the normal of backbone degeneration illness
Use means.TLIF(transforaminal lumbar interbody fusion) be wherein with relatively broad technology it
One.Its feature is, from unilateral cut-out, inferior articular process, and the safety operation trigonum constituted into endorchis and nerve root
Domain and part canalis spinalis and the operation for realizing intervertebral fusion, do not enter central canalis spinalis, without excessive drawing endorchis and nerve root.
Importantly, remaining opposite side vertebral plate and Minor articulus, spinous process and ligament structure are remained, waist rear portion tension band can be rebuild
Structure.Be expert at present TLIF when, on usual antecedent goal interverbebral disc, pedicle screw (standard single-shaft variant or the multiaxis of hypocentrum
Type) merging.It cuts off in symptom side section, inferior articular process.Appear exiting nerve root and part endorchis.In exiting nerve root and firmly
Safety zone between spinal meninges appears pathological interspinal disk.The interverbebral disc is cut off, Invasive lumbar fusion device is placed in.Pedicle screw is finally installed
Between pitman, be fixed.But in this operating process, since operating space is narrow, to guarantee nerve root and endorchis not
It is damaged, needs to cut off that excessive lower articular is prominent and vertebral plate sclerotin sometimes.It is (less that the original intention that TLIF technology uses is allowed in this way
Bone amount and ligament structure lose, it is higher nerve safety) decrease.And the pedicle screw of strong merging is utilized, lead to
Being used cooperatively for certain device for spreading is crossed, surgical procedure region expanded can be made, ensure that the safety of operation, it is heavier
What is wanted is as much as possible to remain non-renewable sclerotin.Since pedicle screw is divided into standard single-shaft variant or fountain type two
Kind, in order to preferably cooperate different screws to use, then a kind of dilator that can be adjusted the angle is needed, not only can adapt to
Screw uses, it is also necessary to adapt to the different incisions depth that different patient individual differences generate, different angle needed for safety operation
Therefore lower use is based on the technical problem, developing a kind of device for spreading that can be adapted to pedicle screw is to be highly desirable
's.
Summary of the invention
The purpose of the present invention is to provide a kind of device for spreading for being adapted to pedicle screw.
The object of the present invention is achieved like this, including handle and plier, and limiting tooth is arranged in the movable end of the handle
Reset spring is arranged in item, handle inside, and handle position is fixed in reset spring and limit rack work cooperation, the plier
Including plier ontology and sleeve, the sleeve is arranged in a mutually vertical manner with plier ontology, the sleeve and the rotatable company of plier ontology
It connects, the plier ontology is set as bendable folded structure.
The present invention uses the setting of angle-adjusting mechanism, and plier three parts of part point of device for spreading are strutted dress to adjust
The angle set, the first adjustable part are to adjust the angle and position by the cooperation of gear tooth slot at the plier of near handle end, are led to
Cross locking nut locking, can the plier to device for spreading vertically strut direction carry out angle adjustment, the second adjustable part be it is separate
Handle end, close to sleeve part, the structure of adjusting and far from same first part, third adjustable part is the angular adjustment of sleeve,
360 degree rotation tune can be carried out along the direction perpendicular to adjustment bar by the cooperation of screw rod screw hole between sleeve and second level adjustment bar
Section.Therefore, the present invention not only adapts to use in the case that different screw fixed-directions, angle are different, moreover it is possible to adapt to patient
It is used in the case that size, the depth of notch are different, angle is different.
Detailed description of the invention
Fig. 1 is overall structure schematic front view of the present invention；
Fig. 2 is left view schematic diagram of the present invention；
Fig. 3 is perspective view of the explosion of the present invention；
Fig. 4 is assembling schematic diagram of the present invention；
In figure: 1 ~ handle, 2 ~ plier ontology, 21 ~ matrix, 22-1 ~ level-one adjustment bar, 22-2 ~ second level adjustment bar, 3 ~ sleeve, 31 ~
Screw rod, 4 ~ limit rack gear, 5 ~ angle-adjusting mechanism, 51-1 ~ gear, 51-2 ~ stud, 52 ~ fixing groove, 52-1 ~ tooth socket, 52-2 ~
Heavy platform slot, 53- locking nut, 6 ~ reset spring.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings, but the present invention is limited in any way, is based on
Present invention teach that made any transformation, each falls within the scope of the present invention.
As shown in Fig. 1 ~ 4, the present invention includes handle 1 and plier, the movable end setting limit rack gear 4 of the handle 1, hand
Reset spring 5 is set on the inside of handle 1, and 1 position of handle is fixed in reset spring 5 and the limit work cooperation of rack gear 4, the plier
Including plier ontology 2 and sleeve 3, the sleeve 3 is arranged in a mutually vertical manner with plier ontology 2, and the sleeve 3 can with plier ontology 2
Rotation connection, the plier ontology 2 are set as bendable folded structure.
The plier ontology 2 includes matrix 21 and adjustment bar 22-1, the company between the adjustment bar 22-1 and matrix 21
Place's setting angle-adjusting mechanism 5 is connect, the other end of adjustment bar 22-1 is arranged in the sleeve 3 and bar 22-1 is vertical sets with adjustment
It sets.
The angle-adjusting mechanism 5 includes sprocket, fixing groove 52 and locking nut 53, the sprocket lower part setting
For gear 51-1, top is stud 51-2, and the fixing groove 52 includes the tooth socket 52-1 of lower part and the heavy platform slot 52-2 on top, institute
State gear 51-1 and tooth socket 52-1 latch location fit, the locking nut 53 be arranged in heavy platform slot 52-2 and with stud 51-2
Screw-threaded coupling cooperation, the sprocket and fixing groove 52 are separately positioned on the connecting pin of adjustment bar 22-1 and matrix 21.
The sprocket setting is on adjustment bar 22-1, and the fixing groove 52 is arranged on matrix 21, the fixing groove 52
Heavy platform slot 52-2 be arranged on the lateral surface of matrix 21, that is, be arranged on the lateral surface of plier, conveniently tighten nut.
Second level adjustment bar 22-2, the adjustment bar 22-1 are additionally provided between the adjustment bar 22-1 and sleeve 3
Setting angle-adjusting mechanism 5 is attached between second level adjustment bar 22-2, and the adjustment bar 22-1 is connect with matrix 21, described
Second level adjustment bar 22-2 is connect with sleeve 3.
Sprocket is arranged in the second level adjustment end bar 22-2, cooperates with the fixing groove 52 on the adjustment end bar 22-1, institute
The lateral surface that adjustment bar 22-1 is arranged in the heavy platform slot 52-2 in fixing groove 52 is stated, that is, the outer end face of plier is set, it is convenient to twist
Tight nut.
Screw rod 31 is vertically arranged on the sleeve 3, spiral shell is arranged in the second level adjustment bar 22-2 and the adjustment connecting pin bar 22-1
Hole, the screw rod 31 cooperates with screw hole, and adjusting nut is arranged on screw rod 31, can adjust sleeve 3 with second level and adjusts bar 22-2
Relative angular relationship.
Screw hole is set on the sleeve 3, and the connecting pin setting screw rod 31 of the second level adjustment bar 22-2 and sleeve 3 are described
Screw rod 31 and screw hole cooperate, and adjusting nut is arranged on screw rod 31, can adjust the relative angle of sleeve 3 with second level adjustment bar 22-2
Degree relationship.
Application method of the invention:
1, the different use of different patient incisions: the different incisions depth that different patient individual differences generate, needed for safety operation
Different angle, can by sleeve and plier ontology be rotatably connected and plier ontology is set as bendable folded structure and is adjusted
It is whole and obtain.The acquisition and stabilization of width are strutted, limit rack gear can be set by the movable end of handle, and setting resets on the inside of handle
Being used cooperatively for spring obtains.
, cooperation fixing screws use: sleeve along pedicle screw follow closely tail, along screw axis be inserted into nail tail bottom.Pass through
The movable end setting limit rack gear of handle, handle inside setting reset spring are used cooperatively, can get and strut.
, cooperation Universal screw nail use: enter fixed inner core along universal nail tailspin so that Universal screw nail nail shaft line be reset to
Rivet nut is consistent.At this point, universal nail becomes fixing glue, sleeve follows closely tail along pedicle screw, is inserted into nail tail bottom along screw axis
Portion.By the movable end setting limit rack gear of handle, being used cooperatively for reset spring is set on the inside of handle, can get and strut.
Claims (8)
1. a kind of device for spreading for being adapted to pedicle screw, including handle (1) and plier, the movable end of the handle (1) are set
Limit rack gear (4) is set, reset spring (5) are set on the inside of handle (1), reset spring (5) and limit rack gear (4) work cooperation opponent
Handle (1) position is fixed, it is characterised in that the plier includes plier ontology (2) and sleeve (3), the sleeve (3) and pincers
Mouth ontology (2) is arranged in a mutually vertical manner, and the sleeve (3) is rotatably connected with plier ontology (2), plier ontology (2) setting
For bendable folded structure.
2. the device for spreading of adaptation pedicle screw according to claim 1, it is characterised in that the plier ontology (2)
Including matrix (21) and adjustment bar (22-1), the junction setting angle between adjustment bar (22-1) and matrix (21) is adjusted
Mechanism (5), sleeve (3) setting are adjusting the other end of bar (22-1) and are being vertically arranged with adjustment bar (22-1).
3. the device for spreading of adaptation pedicle screw according to claim 2, it is characterised in that the angle adjusts machine
Structure (5) includes sprocket, fixing groove (52) and locking nut (53), and the sprocket lower part is set as gear (51-1), top
For stud (51-2), the fixing groove (52) includes the tooth socket (52-1) of lower part and the heavy platform slot (52-2) on top, the gear
(51-1) and tooth socket (52-1) latch location fit, the locking nut (53) is arranged in heavy platform slot (52-2) and and stud
The cooperation of (51-2) screw-threaded coupling, the sprocket and fixing groove (52) are separately positioned on the company for adjusting bar (22-1) and matrix (21)
Connect end.
4. the device for spreading of adaptation pedicle screw according to claim 3, it is characterised in that the sprocket setting exists
It adjusts on bar (22-1), the fixing groove (52) is arranged on matrix (21), and the heavy platform slot (52-2) of the fixing groove (52) is set
It sets on the lateral surface of matrix (21), that is, is arranged on the lateral surface of plier, conveniently tightens nut.
5. the device for spreading of adaptation pedicle screw according to claim 4, it is characterised in that the adjustment bar
Second level adjustment bar (22-2) is additionally provided between (22-1) and sleeve (3), the adjustment bar (22-1) and second level adjust bar (22-
2) angle-adjusting mechanism (5) are arranged between to be attached, the adjustment bar (22-1) connect with matrix (21), the second level adjustment
Bar (22-2) is connect with sleeve (3).
6. the device for spreading of adaptation pedicle screw according to claim 5, it is characterised in that the second level adjusts bar
Sprocket is arranged in the end (22-2), cooperates with the fixing groove (52) on adjustment end bar (22-1), on the fixing groove (52)
Heavy platform slot (52-2) setting is arranged in the outer end face of plier, conveniently tightens nut in the lateral surface of adjustment bar (22-1).
7. the device for spreading of adaptation pedicle screw according to claim 1, it is characterised in that vertical on the sleeve (3)
Be arranged screw rod (31), second level adjustment bar (22-2) and the adjustment bar connecting pin (22-1) are arranged screw hole, the screw rod (31) with
Screw hole cooperation, and adjusting nut is set on screw rod (31), it can adjust the relative angle of sleeve (3) and second level adjustment bar (22-2)
Relationship.
8. the device for spreading of adaptation pedicle screw according to claim 1, it is characterised in that be arranged on the sleeve (3)
Screw rod (31) are arranged in the connecting pin of screw hole, second level adjustment bar (22-2) and sleeve (3), and the screw rod (31) is matched with screw hole
It closes, and adjusting nut is set on screw rod (31), can adjust the relative angular relationship of sleeve (3) and second level adjustment bar (22-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344422.3A CN110101419A (en) | 2019-04-26 | 2019-04-26 | A kind of device for spreading being adapted to pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344422.3A CN110101419A (en) | 2019-04-26 | 2019-04-26 | A kind of device for spreading being adapted to pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110101419A true CN110101419A (en) | 2019-08-09 |
Family
ID=67486976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344422.3A Pending CN110101419A (en) | 2019-04-26 | 2019-04-26 | A kind of device for spreading being adapted to pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110101419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112690850A (en) * | 2020-12-18 | 2021-04-23 | 蚌埠冠鑫达医疗科技有限公司 | Pouch anastomat with adjustable length |
| CN112869815A (en) * | 2021-02-15 | 2021-06-01 | 苏州法兰克曼医疗器械有限公司 | Endoscopic cutting anastomat with adjustable transmission mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202699262U (en) * | 2012-07-13 | 2013-01-30 | 北京市富乐科技开发有限公司 | Minimally invasive sleeve type expander and extension arm pedicle screw |
| CN107595377A (en) * | 2017-09-12 | 2018-01-19 | 山东威高骨科材料股份有限公司 | The spacing regulator of percutaneous cervical arc root screw |
| CN210354786U (en) * | 2019-04-26 | 2020-04-21 | 昆明医科大学第二附属医院 | Distraction device of adaptation pedicle of vertebral arch screw |
-
2019
- 2019-04-26 CN CN201910344422.3A patent/CN110101419A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202699262U (en) * | 2012-07-13 | 2013-01-30 | 北京市富乐科技开发有限公司 | Minimally invasive sleeve type expander and extension arm pedicle screw |
| CN107595377A (en) * | 2017-09-12 | 2018-01-19 | 山东威高骨科材料股份有限公司 | The spacing regulator of percutaneous cervical arc root screw |
| CN210354786U (en) * | 2019-04-26 | 2020-04-21 | 昆明医科大学第二附属医院 | Distraction device of adaptation pedicle of vertebral arch screw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112690850A (en) * | 2020-12-18 | 2021-04-23 | 蚌埠冠鑫达医疗科技有限公司 | Pouch anastomat with adjustable length |
| CN112690850B (en) * | 2020-12-18 | 2022-08-30 | 安徽合众智信科技咨询有限公司 | Pouch anastomat with adjustable length |
| CN112869815A (en) * | 2021-02-15 | 2021-06-01 | 苏州法兰克曼医疗器械有限公司 | Endoscopic cutting anastomat with adjustable transmission mechanism |
| CN112869815B (en) * | 2021-02-15 | 2022-02-08 | 苏州法兰克曼医疗器械有限公司 | Endoscopic cutting anastomat with adjustable transmission mechanism |
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