CN108542488A - A kind of push-in screw of arculae type - Google Patents
A kind of push-in screw of arculae type Download PDFInfo
- Publication number
- CN108542488A CN108542488A CN201810138221.3A CN201810138221A CN108542488A CN 108542488 A CN108542488 A CN 108542488A CN 201810138221 A CN201810138221 A CN 201810138221A CN 108542488 A CN108542488 A CN 108542488A
- Authority
- CN
- China
- Prior art keywords
- arculae
- screw
- back seat
- spherical
- push
- 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
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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, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- 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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- 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 ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Abstract
A kind of push-in screw of arculae type belongs to the field of medical instrument technology, it is therefore intended that solve the problems, such as when operation of the existing technology it is cumbersome, operating time is long, operating difficulty is big, procedure efficiency is low and increases pain to patient.The present invention includes：The screw back seat of integral type cylindrical shape；The plug screw connected with the screw back seat threaded upper ends；With the inside connector of plug screw lower end flexible connection, the internal connector lower face is provided with reeded lower camber side；Arculae baffle ring in the screw back seat is set, and arch baffle ring upper surface is provided with reeded upper cambered surface；It is arranged between the internal connector and arculae baffle ring and and the vertical external connection bar of screw back seat；The spherical arculae of portion integral formula cylindrical shape is set in the screw back seat, when stress squeezes when the spherical arculae both ends, is deformed into sphere；And the screw root nail of the bulb and the spherical arculae cooperation of one end.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of push-in screw of arculae type.
Background technology
With the development of economy, traffic is more and more convenient, and the vehicular traffic on road gradually increases, but corresponding traffic
Accident frequency also increases year by year, working at height originally high risk industries, and working at height personnel for various reasons may
It returns from falling from high altitude, traffic accident and the accidents such as fall from high altitude all can bring great bodily injury to related personnel, be often accompanied by fracture
Occur, such as take corresponding treatment not in time, it is permanently grieved to may result in fracture site, therefore patient should receive phase in time
The fracture operation treatment answered.
Currently, generally use nail is attached when clinically carrying out fracture operation, multiaxis nail packet in the prior art
Screw root rivet nut, back seat and nut are included, needs that screw root rivet nut screw-in is first applied art position in the course of surgery, is given birth to according to patient
Reason curvature adjusts the placement position of connecting rod, then uses tool locking nut again；Due in the prior art must be first by rivet nut
It is assembled with back seat and screws in human body again, the two can be relatively movable in a certain range before locking, can be to the rotation of rivet nut in operation
Enter to interfere；Nut must be installed finally and to ensure that the length screwed in needed for locking effect has certain requirement, meeting simultaneously
Extend operating time and increases operating difficulty.
Invention content
It is an object of the invention to propose a kind of push-in screw of arculae type, solve to operate when operation of the existing technology
It is cumbersome, operating time is long, operating difficulty is big, procedure efficiency is low and give patient increase pain problem.
Above-mentioned purpose when to realize, a kind of push-in screw of arculae type of the invention include：
The screw back seat of integral type cylindrical shape, screw back seat top are provided with two opposite first by upper end downwards
Deformation slot, screw back seat lower end inner ring surface are provided with first annular protrusion；
The plug screw connected with the screw back seat threaded upper ends；
With the inside connector of plug screw lower end flexible connection, the internal connector lower face is provided with fluted
Lower camber side；
It is arranged in the screw back seat and the internal connector arculae baffle ring disposed in parallel, on the arculae baffle ring
End face is provided with reeded upper cambered surface；
Be arranged between the internal connector and arculae baffle ring and and the vertical external connection bar of screw back seat, it is described outside
Portion's connecting rod external cylindrical surface is provided with outer groove, the outer groove of the external connection bar with it is recessed in the lower camber side of internal connector
The groove of the upper cambered surface of slot, that is, arculae baffle ring coordinates, two first deformation of the external connection bar both ends from the screw back seat
Slot stretches out；
The spherical arculae of portion integral formula cylindrical shape is set in the screw back seat, when spherical arculae both ends stress
When extruding, it is deformed into sphere；
And the screw root nail of the bulb and the spherical arculae cooperation of one end.
The spherical shape arculae is from top to bottom followed successively by movable part, middle interconnecting piece and lower movable part, table in spherical arculae
Face is provided with inner groove, the spherical shape arculae both ends be provided with it is multiple with the second deformation slot of setting, the second deformation of upper end
Slot extends to lower movable part by the end of upper movable part, and the second deformation slot of lower end extends to upper activity by the end of lower movable part
Portion, multiple second deformation slots of upper end and multiple second deformation slots of lower end are staggered, deformed spherical shape arculae and root nail
Bulb it is affixed.
The first annular raised upper surface is cone structure, by far from one laterally closer center line side size of center line
It tapers into, the external cylindrical surface when maximum radius of the inner ring surface of the first annular protrusion is more than the spherical arculae nature
Radius, and the maximum of the inner ring surface maximum radius of the first annular raised upper and lower end face bulb that is more than screw root nail is straight
Diameter.
The plug screw upper surface is provided with cross recess, and lower face is provided with annular notches.
The internal connector is disk-shaped structure, and upper surface is provided with the second annular protrusion, second annular protrusion
Coordinate with the annular notches of plug screw lower face.
Arculae baffle ring lower face is provided with cylindrical boss, in the cylindrical boss and the deformed upper end of spherical arculae
Anchor ring coordinates.
The screw root nail other end is provided with fluting, and screw root nail bulb one end end set has plum blossom notch.
Beneficial effects of the present invention are：A kind of spherical arculae of push-in screw of arculae type of the present invention has elasticity can root
According to being deformed, spherical arculae and arculae baffle ring are had been placed in before surgery inside screw back seat；Special plug screw and inside
Connector links together in advance, can carry out relative rotation, operation consent by special plug screw and screw back seat threaded connection part
It screws in screw back seat；External connection bar can also operation consent be mounted on screw back seat, but can activity, it is opposite for adjusting
Position；So screw root only need to be first screwed in when operation to follow closely in the corresponding position of human body, it then will be after the assembled screw of operation consent
The tail portion spherical part of seat indentation screw root nail, can thus solve cumbersome when operation existing in the prior art
Time-consuming problem saves operating time, reduces operating difficulty, mitigates patient suffering, improves procedure efficiency.
Description of the drawings
Fig. 1 is a kind of push-in screw overall structure diagram of arculae type of the present invention；
Fig. 2 is screw rear seat construction schematic diagram in a kind of push-in screw of arculae type of the present invention；
Fig. 3 is internal connecting-piece structure schematic diagram in a kind of push-in screw of arculae type of the present invention；
Fig. 4 is arculae baffle ring structural schematic diagram in a kind of push-in screw of arculae type of the present invention；
Fig. 5 is external connecting rod structural schematic diagram in a kind of push-in screw of arculae type of the present invention；
Fig. 6 deforms pre-structure schematic diagram for spherical arculae in a kind of push-in screw of arculae type of the present invention；
Fig. 7 is structural schematic diagram after spherical arculae deformation in a kind of push-in screw of arculae type of the present invention；
Fig. 8 is screw root pin structure schematic diagram in a kind of push-in screw of arculae type of the present invention；
Wherein：1, screw back seat, the 101, first deformation slot, 102, first annular protrusion, 2, plug screw, 201, cross recess, 3,
Internal connector, 301, lower camber side, the 302, second annular protrusion, 4, external connection bar, 5, arculae baffle ring, 501, cylindrical boss,
502, upper cambered surface, 6, spherical arculae, 601, upper movable part, 602, middle interconnecting piece, 603, lower movable part, 604, inner groove,
605, the second deformation slot, 7, screw root nail, 701, bulb, 702, fluting.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Referring to attached drawing 1- attached drawings 8, a kind of push-in screw of arculae type of the invention includes：
The screw back seat 1 of integral type cylindrical shape, 1 top of screw back seat are provided with two opposite by upper end downwards
One deformation slot 101,1 lower end inner ring surface of the screw back seat are provided with first annular raised 102；
The plug screw 2 connected with 1 threaded upper ends of screw back seat；
With the inside connector 3 of 2 lower end of plug screw flexible connection, 3 lower face of the internal connector, which is provided with, to be carried
The lower camber side 301 of groove；
Setting is kept off in the screw back seat 1 with 3 arculae baffle ring 5 disposed in parallel of the internal connector, the arculae
5 upper surface of ring is provided with reeded upper cambered surface 502；
Be arranged between the internal connector 3 and arculae baffle ring 5 and and the vertical external connection bar 4 of screw back seat 1, institute
It states 4 external cylindrical surface of external connection bar and is provided with outer groove, the lower arc of the outer groove of the external connection bar 4 and internal connector 3
The groove of the upper cambered surface 502 of groove, that is, arculae baffle ring 5 on face 301 coordinates, and 4 both ends of external connection bar are after the screw
Two the first deformation slots 101 of seat 1 stretch out；The equally distributed outer groove in 4 outer surface of external connection bar respectively with inside
The corresponding groove in 3 lower part of connector and 5 top of arculae baffle ring is coordinated, then is squeezed by the screw-in of plug screw 2, and external connection is made
Bar 4 is fixed；Total is connect by external connection bar 4 with other screws, and the fixation to bone is completed；
The spherical arculae 6 of portion integral formula cylindrical shape is set in the screw back seat 1, when 6 both ends of the spherical arculae
When stress squeezes, it is deformed into sphere；
And the screw root nail 7 of the bulb 701 and the spherical cooperation of arculae 6 of one end.
First annular raised 102 pairs spherical arculaes 6 of 1 interior lower end of screw back seat play the role of limiting shape screens, and
It is connected with 6 outer surface of spherical arculae；The screw back seat 1 separately plays the role of outer protection shell, total thus
Component is all located fully or partially inside it.
The spherical shape arculae 6 is from top to bottom followed successively by movable part 601, middle interconnecting piece 602 and lower movable part 603, ball
6 inner surface of shape arculae is provided with inner groove 604,6 both ends of the spherical shape arculae be provided with it is multiple with the second deformation slot of setting
605, the second deformation slot 605 of upper end extends to lower movable part 603, the second deformation slot of lower end by the end of upper movable part 601
605 extend to upper movable part 601, multiple second deformation slots 605 of upper end and multiple the of lower end by the end of lower movable part 603
Two deformation slots 605 are staggered, and the bulb 701 of deformed spherical shape arculae 6 and root nail is affixed.
Spherical arculae 6 has high resiliency, during the work time can be with requirements of one's work varied appearance；Spherical arculae 6
Inner surface is followed closely bulb 701 part of 7 tail portions with annular groove with screw root and is attached, outside and the screw back seat 1 of spherical arculae 6
Inner surface is attached, and spherical arculae 6 is flexibly connected with screw back seat 1 and screw root nail 7 respectively before deforming, and spherical arculae 6 becomes
It is affixed with screw back seat 1 and screw root nail 7 respectively after shape；The top of spherical arculae 6 is contacted with arculae baffle ring 5, arculae baffle ring 5
Cylindrical boss 501 plays limit shape screens, limits position and the changes shape of spherical arculae 6.
First annular raised 102 upper surface is cone structure, by far from one laterally closer center line side of center line
Size tapers into,
First annular raised 102 upper surface is cone structure, by far from one laterally closer center line side of center line
Size tapers into, when the maximum radius of first annular raised 102 inner ring surface is more than spherical 6 nature of arculae
The radius of external cylindrical surface, and the inner ring surface maximum radius of first annular raised 102 upper and lower end face is more than the ball of screw root nail 7
First 701 maximum gauge.
2 upper surface of the plug screw is provided with cross recess 201, and lower face is provided with annular notches.The cross recess of the plug screw 2
201 can be such that plug screw 2, with certain elasticity, is connected more secured when screwing in screw back seat 1；The annular of 2 lower part of plug screw
Notch, the Upper cylindrical male cooperation with internal connector 3, is flexibly connected, and plug screw 2 is connected to one with internal connector 3
It rises, but can be relatively movable, screws in screw back seat 1 simultaneously when mounted.
The internal connector 3 is disk-shaped structure, and upper surface is provided with the second annular protrusion 302, second annular
Protrusion 302 and the cooperation of the annular notches of 2 lower face of plug screw.
5 lower face of arculae baffle ring is provided with cylindrical boss 501, after the cylindrical boss 501 and spherical arculae 6 deform
The cooperation of upper end inner ring surface.
The screw root follows closely 7 other ends and is provided with fluting 702.Screw root 7 bulbs 701 of nail are provided with equally distributed
Annular groove increases contact surface when for being attached with spherical arculae 6, keeps connection more secured；The screw root follows closely 7 bulbs
701 part plum blossom notches, connect when for performing the operation with operation tool；The screw root follows closely 7 tail portions fluting 702 for increasing rotation
Enter space, when operation is more easy to screw in human body.
The present invention the course of work be：Spherical arculae 6 in a kind of push-in screw of arculae type of the present invention has elasticity
It can be deformed as needed, spherical arculae 6 and arculae baffle ring 5 are had been placed in before surgery inside screw back seat 1；2 He of plug screw
Internal connector 3 links together in advance, can carry out relative rotation, operation consent by plug screw 2 and screw back seat 1 threaded joints
Divide and screws in screw back seat 1；External connection bar 4 can also operation consent be mounted on screw back seat 1 on, but can activity, for adjusting
Save relative position；So only need to first screw in screw root nail 7 when operation in the corresponding position of human body, then operation consent is assembled
Screw back seat 1 be pressed into screw root nail 7 tail portion spherical part, can thus solve operation existing in the prior art
When cumbersome time-consuming problem, save operating time, reduce operating difficulty, mitigate patient suffering, improve procedure efficiency.
After surgery when removable screw, due to spherical arculae 6 elasticity and screw root nail 7 701 part of bulb radius and
The lower openings radius of spherical arculae 6 is equal before installation, so only need the power of very little can be the bulb 701 of screw root nail 7
It is partially pressed into or extracts inside spherical arculae 6, only need to slightly rotate plug screw 2 when so removing nail can be screw back seat 1
With 7 separation of screw root nail, the dismounting that screw can be completed in screw root nail 7 is then further taken out.
A kind of push-in screw of arculae type of the present invention assembles in the course of surgery to be easy, and simplicity is removed after operation, significantly
The time required to shortening operation, the efficiency of operation is improved.
Claims (7)
1. a kind of push-in screw of arculae type, which is characterized in that including：
The screw back seat (1) of integral type cylindrical shape, screw back seat (1) top are provided with two opposite by upper end downwards
One deformation slot (101), screw back seat (1) lower end inner ring surface are provided with first annular raised (102)；
The plug screw (2) connected with screw back seat (1) threaded upper ends；
With the inside connector (3) of the plug screw (2) lower end flexible connection, described internal connector (3) lower face is provided with band
Reeded lower camber side (301)；
Setting is in interior and described internal connector (3) the arculae baffle ring (5) disposed in parallel of the screw back seat (1), the arculae
Baffle ring (5) upper surface is provided with reeded upper cambered surface (502)；
It is arranged between the internal connector (3) and arculae baffle ring (5) simultaneously and the vertical external connection bar of screw back seat (1)
(4), external connection bar (4) external cylindrical surface is provided with outer groove, and the outer groove of the external connection bar (4) is connect with inside
The groove of the upper cambered surface (502) of groove, that is, arculae baffle ring (5) in the lower camber side (301) of part (3) coordinates, the external connection bar
(4) both ends are stretched out from two the first deformation slots (101) of the screw back seat (1)；
Spherical arculae (6) in the interior portion integral formula cylindrical shape of the screw back seat (1) is set, when the spherical arculae (6) two
When stress being held to squeeze, it is deformed into sphere；
And the screw root nail (7) of the bulb (701) and spherical arculae (6) cooperation of one end.
2. a kind of push-in screw of arculae type according to claim 1, which is characterized in that the spherical shape arculae (6) is by upper
Upper movable part (601), middle interconnecting piece (602) and lower movable part (603), spherical arculae (6) inner surface setting are followed successively by under
Have an inner groove (604), described spherical shape arculae (6) both ends be provided with it is multiple with the second deformation slot (605) of setting, the of upper end
Two deformation slots (605) extend to lower movable part (603) by the end of upper movable part (601), the second deformation slot (605) of lower end by
The end of lower movable part (603) extends to movable part (601), multiple second deformation slots (605) of upper end and lower end it is multiple
Second deformation slot (605) is staggered, and the bulb (701) of deformed spherical shape arculae (6) and root nail is affixed.
3. a kind of push-in screw of arculae type according to claim 1 or 2, which is characterized in that the first annular protrusion
(102) upper surface is cone structure, by being tapered into far from one laterally closer center line side size of center line, first ring
The radius of external cylindrical surface when the maximum radius of the inner ring surface of shape protrusion (102) is more than described spherical arculae (6) nature, and institute
The maximum for the bulb (701) that the inner ring surface maximum radius for stating first annular raised (102) upper and lower end face is more than screw root nail (7) is straight
Diameter.
4. a kind of push-in screw of arculae type according to claim 1, which is characterized in that plug screw (2) upper surface is set
It is equipped with cross recess (201), lower face is provided with annular notches.
5. a kind of push-in screw of arculae type according to claim 4, which is characterized in that connector (3) is inside described
Disk-shaped structure, upper surface are provided with the second annular protrusion (302), second annular protrusion (302) and plug screw (2) lower face
Annular notches cooperation.
6. a kind of push-in screw of arculae type according to claim 1 or 2, which is characterized in that under the arculae baffle ring (5)
End face is provided with cylindrical boss (501), the cylindrical boss (501) and the deformed upper end inner ring surface cooperation of spherical arculae (6).
7. a kind of push-in screw of arculae type according to claim 1, which is characterized in that the screw root nail (7) is another
End is provided with fluting (702), and screw root nail (7) bulb (701) one end end set has plum blossom notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138221.3A CN108542488A (en) | 2018-02-10 | 2018-02-10 | A kind of push-in screw of arculae type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138221.3A CN108542488A (en) | 2018-02-10 | 2018-02-10 | A kind of push-in screw of arculae type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108542488A true CN108542488A (en) | 2018-09-18 |
Family
ID=63515874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810138221.3A Pending CN108542488A (en) | 2018-02-10 | 2018-02-10 | A kind of push-in screw of arculae type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108542488A (en) |
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| CN104337565A (en) * | 2013-07-24 | 2015-02-11 | 比德尔曼技术有限责任两合公司 | Coupling assembly for coupling a rod to a bone anchoring element, kit of such a coupling assembly different rod receiving elements and bone anchoring device |
| US20160000471A1 (en) * | 2003-06-27 | 2016-01-07 | DePuy Synthes Products, Inc. | Polyaxial bone screw |
| CN105997225A (en) * | 2016-05-12 | 2016-10-12 | 吉林大学 | Nut downward-screwed type cutting sleeve shaped screw |
| EP3158958A2 (en) * | 2015-09-29 | 2017-04-26 | Stryker European Holdings I, LLC | Biased angle screws |
| US20170296234A1 (en) * | 2009-06-15 | 2017-10-19 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock |
| US20170319241A1 (en) * | 2004-02-17 | 2017-11-09 | Globus Medical, Inc. | Facet joint replacement instruments and methods |
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|---|---|---|---|---|
| CN2617325Y (en) * | 2003-01-09 | 2004-05-26 | 张家港市欣荣医疗器械有限公司 | Bone screw |
| US20040260283A1 (en) * | 2003-06-19 | 2004-12-23 | Shing-Cheng Wu | Multi-axis spinal fixation device |
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| US20140018859A1 (en) * | 2008-12-30 | 2014-01-16 | Biedermann Technologies Gmbh & Co. Kg | Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part |
| US20170296234A1 (en) * | 2009-06-15 | 2017-10-19 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock |
| CN104337565A (en) * | 2013-07-24 | 2015-02-11 | 比德尔曼技术有限责任两合公司 | Coupling assembly for coupling a rod to a bone anchoring element, kit of such a coupling assembly different rod receiving elements and bone anchoring device |
| CN203468724U (en) * | 2013-08-07 | 2014-03-12 | 上海底特精密紧固件股份有限公司 | Pedicle screw |
| EP3158958A2 (en) * | 2015-09-29 | 2017-04-26 | Stryker European Holdings I, LLC | Biased angle screws |
| CN105997225A (en) * | 2016-05-12 | 2016-10-12 | 吉林大学 | Nut downward-screwed type cutting sleeve shaped screw |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
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| RJ01 | Rejection of invention patent application after publication |