CN109938821A - Just the umbrella bone blot dismantled - Google Patents
Just the umbrella bone blot dismantled Download PDFInfo
- Publication number
- CN109938821A CN109938821A CN201910251441.1A CN201910251441A CN109938821A CN 109938821 A CN109938821 A CN 109938821A CN 201910251441 A CN201910251441 A CN 201910251441A CN 109938821 A CN109938821 A CN 109938821A
- Authority
- CN
- China
- Prior art keywords
- screw thread
- precession
- spiral shell
- dismantled
- hollow
- 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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Links
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 30
- 230000008602 contraction Effects 0.000 claims description 5
- 208000005214 Poroma Diseases 0.000 claims description 4
- 201000001013 eccrine acrospiroma Diseases 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 5
- 230000035876 healing Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 210000000689 upper leg Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000020089 femoral neck fracture Diseases 0.000 description 1
- 210000002391 femur head Anatomy 0.000 description 1
- 210000002436 femur neck Anatomy 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Prostheses (AREA)
Abstract
The umbrella bone blot just dismantled of the invention, including bolt body, bolt body includes screw head and hollow spiral shell body, hollow spiral shell body includes polished rod portion, at least two panels screw thread umbrella piece and the soft connection sheet with screw thread umbrella piece quantity Matching, each screw thread umbrella piece is arranged circumferentially along polished rod portion, and each screw thread umbrella piece is connect by soft connection sheet with polished rod portion, edge, end, soft connection sheet periphery forms annular groove, it is inserted in the hollow cavity of hollow spiral shell body for driving the mandrel for keeping straightened condition after screw thread umbrella piece inner wall stress, it is provided in annular groove for driving the pre- contractibility for keeping straightened condition after screw thread umbrella piece end wall stress, screw head end offers the precession operating cavity of stress when for bolt body precession, precession operating cavity is communicated with the hollow cavity of hollow spiral shell body, screw head is equipped with the drawing step exited for bolt body close to one end of hollow spiral shell body.The bone blot have the advantages that it is simple and reliable for structure, easy to operate, be avoided that operation damage, healing progress can be improved.
Description
Technical field
The invention mainly relates to medical auxiliary apparatus, more particularly to a kind of umbrella bone blot just dismantled.
Background technique
Fracture of neck of femur is fixed frequently with the hollow screw of three pieces of sharp hexagonals, material frequently with titanium alloy, due to
Screw front is cancellous threads, and screw thread is thicker, and it is larger to hold dynamics.And all do not have generally when being screwed into screw in art
Tapping, so often there is the stripped thread of sharp hexagonal.Such as there is postoperative (for example, femoral neck bone when need to take out hollow screw
Caput femoris necrosis after reefing needs hip replacement again or femoral head to protect head treatment), then it needs to be twisted with sharp hexagonal screwdriver
Hollow screw out, this when, holding power was larger in femoral head since screw front threads are thicker, and sharp hexagon ring is in early period
In the case of existing stripped thread, it is easier to the stripped thread of sharp hexagonal occur.Once stripped thread, due to lacking effective hollow screw extractor,
It needs just to be hopeful taking-up screw by vice or electric drill drilling, it is big to neck of femur and femur injury there are when Operation Fee,
Seriously affect Advances of operative technique and operation prognosis.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of simple and reliable for structure, operation
The umbrella bone blot just dismantled that is convenient, being avoided that operation damage, healing progress can be improved.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of umbrella bone blot just dismantled, including bolt body, the bolt body include screw head and hollow spiral shell body,
The hollow spiral shell body includes polished rod portion, at least two panels screw thread umbrella piece and the soft connection sheet with screw thread umbrella piece quantity Matching, respectively
Screw thread umbrella piece is arranged circumferentially along polished rod portion and each screw thread umbrella piece is connect by soft connection sheet with polished rod portion, edge, end, described
Soft connection sheet periphery forms annular groove, after being inserted in the hollow cavity of the hollow spiral shell body for driving screw thread umbrella piece inner wall stress
The mandrel of straightened condition is kept, is provided in the annular groove for keeping the pre- of straightened condition after driving screw thread umbrella piece end wall stress
Contractibility, the screw head end offer the precession operating cavity of stress when for bolt body precession, the precession operating cavity with
The hollow cavity of hollow spiral shell body communicates, and the screw head is equipped with the draw bench exited for bolt body close to one end of hollow spiral shell body
Rank.
As a further improvement of the above technical scheme:
The pre- contractibility includes that pre- contraction cranse and degradable washer, the pre- contraction cranse and degradable washer are bound round
It is located in annular groove, the degradable washer is located at pre- shrink between cranse and soft connection sheet.
The aperture of the precession operating cavity is greater than the hollow cavity aperture of hollow spiral shell body.
Regular polygon cavity configuration is arranged in the precession operating cavity.
Each screw thread umbrella piece end is equipped with positioning table, and the mandrel inserts in hollow cavity and is close to positioning table cooperation.
It further include the envelope chamber component for preventing poroma to precession operation Intracavity.
The envelope chamber component includes lid and elasticity envelope chamber pad, and the elasticity envelope chamber cushion cover sets the hollow cavity in hollow spiral shell body
Interior, the cover cap closes at the accent of screw head.
The lid is equipped with the push-pull rod extended in precession operating cavity and with elasticity envelope chamber pad snapping, on the push-pull rod
Equipped with discount, the mandrel is equipped with button platform, and elasticity envelope chamber pad both ends are equipped with the interior expansion button with discount and button platform cooperation
Slot.
The lid is set as nut, and the nut and screw head are threadedly engaged and nut and screw head are threadedly engaged in axis
There is gap on direction.
The periphery of the lid is equipped with chuck, and the precession operating cavity of the screw head is equipped with L-type card slot, the card at accent
Platform is clamped after angle along vertically entering and rotating for L-type card slot with the translot of L-type card slot.
Compared with the prior art, the advantages of the present invention are as follows:
The umbrella bone blot just dismantled of the invention, in use, the hollow cavity by mandrel along hollow spiral shell body is inserted into, screw thread
Straightened condition is kept after umbrella piece inner wall stress, then by pre- contractibility lock ring in annular groove, keep flat after screw thread umbrella piece end wall stress
Straight shape forms positioning to screw thread umbrella piece by inside and outside stress in this way, then extends to precession operating cavity using tool and revolved
Turn operation, screw thread umbrella piece precession is made to reach synthetism effect；When needing to take out bone blot, first mandrel is taken out, screw thread umbrella
Piece is due to the advance power by pre- contractibility, and the support of screw thread umbrella piece inner wall is eliminated, so the sector-meeting of screw thread umbrella is to radial direction
It is mobile, achieve the effect that actively to unload screw thread close-fitting power, subsequent need apply drawing to drawing step by tool in the axial direction
Power slowly pulls out bone blot.For traditional structure, which utilizes mandrel and pre- contractibility in precession
Interior fit on so that screw thread umbrella piece is kept flat, mandrel additionally provides rigidity, ensure that and screw intensity, even in synthetism
There is stress rupture, slipping phenomenon in precession operating cavity, can also realize synthetism by actively unloading screw thread close-fitting power when taking out
Bolt takes out, then needs to be simple and convenient to operate by vice or electric drill drilling bone blot, structure；On the one hand it saves
Operating time；On the other hand neck of femur and femur will not be caused to damage when taking out, has reached antisitic defect effect, has improved
Advances of operative technique and healing progress.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the embodiment of the present invention 1.
Fig. 2 is the main cross section structure diagram of the embodiment of the present invention 1.
Fig. 3 is the schematic cross-sectional view of bolt body in the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of mandrel in the embodiment of the present invention 1.
Fig. 5 is the structural schematic diagram of lid in the embodiment of the present invention 1.
Fig. 6 is the structural schematic diagram of elasticity envelope chamber pad in the embodiment of the present invention 1.
Fig. 7 is the present invention looks up structural representation of Fig. 3.
Fig. 8 is the schematic view of the front view of the embodiment of the present invention 2.
Fig. 9 is the main cross section structure diagram of the embodiment of the present invention 2.
Figure 10 is the schematic cross-sectional view of bolt body in the embodiment of the present invention 2.
Figure 11 is the structural schematic diagram of lid in the embodiment of the present invention 2.
Figure 12 is the present invention looks up structural representation of Figure 10.
Each label indicates in figure:
1, bolt body；11, screw head；111, precession operating cavity；1111, L-type card slot；112, drawing step；12, hollow spiral shell
Body；121, polished rod portion；122, screw thread umbrella piece；1221, positioning table；123, soft connection sheet；124, annular groove；2, mandrel；21, it detains
Platform；3, pre- contractibility；31, cranse is shunk in advance；32, degradable washer；4, chamber component is sealed；41, lid；411, chuck；42, elastic
Seal chamber pad；421, interior expansion catching groove；43, push-pull rod；431, discount.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1:
Fig. 1 to Fig. 7 shows the first embodiment for the umbrella bone blot that the present invention just dismantles, including bolt body 1,
Bolt body 1 include screw head 11 and hollow spiral shell body 12, hollow spiral shell body 12 include polished rod portion 121, at least two panels screw thread umbrella piece 122 with
And the soft connection sheet 123 with 122 quantity Matching of screw thread umbrella piece, each screw thread umbrella piece 122 is arranged circumferentially along polished rod portion 121,
And each screw thread umbrella piece 122 is connect by soft connection sheet 123 with polished rod portion, edge, 121 end, soft 123 periphery of connection sheet forms annular groove
124, it is inserted in the hollow cavity of hollow spiral shell body 12 for driving the mandrel for keeping straightened condition after 122 inner wall stress of screw thread umbrella piece
2, it is provided in annular groove 124 for driving the pre- contractibility 3 for keeping straightened condition after 122 end wall stress of screw thread umbrella piece, screw head 11
End offers the precession operating cavity 111 of stress when for 1 precession of bolt body, precession operating cavity 111 and hollow spiral shell body 12
Hollow cavity communicates, and screw head 11 is equipped with the drawing step 112 exited for bolt body 1 close to one end of hollow spiral shell body 12.It uses
When, the hollow cavity by mandrel 2 along hollow spiral shell body 12 is inserted into, and keeps straightened condition after 122 inner wall stress of screw thread umbrella piece, then will be advance
3 lock ring of contracting part keeps flat after 122 end wall stress of screw thread umbrella piece, in this way by inside and outside stress to screw thread in annular groove 124
Umbrella piece 122 forms positioning, then extends to precession operating cavity 111 using tool and carries out rotation process, makes 122 precession of screw thread umbrella piece
Reach synthetism effect；When needing to take out bone blot, first mandrel 2 is taken out, screw thread umbrella piece 122 is due to by pre- contractibility
3 advance power, and the support of 122 inner wall of screw thread umbrella piece is eliminated, so screw thread umbrella piece 122 can be mobile to radial direction, reaches main
The effect of dynamic unloading screw thread close-fitting power, subsequent need apply pulling force to drawing step 112 by tool in the axial direction and slowly will
Bone blot pulls out.For traditional structure, the bone blot in precession using mandrel 2 and pre- contractibility 3 inside and outside
Cooperation makes screw thread umbrella piece 122 keep flat, and mandrel 2 additionally provides rigidity, ensure that and screw intensity, even revolves in synthetism
There is stress rupture, slipping phenomenon into operating cavity 111, can also realize synthetism by actively unloading screw thread close-fitting power when taking out
Bolt takes out, then needs to be simple and convenient to operate by vice or electric drill drilling bone blot, structure；On the one hand it saves
Operating time；On the other hand neck of femur and femur will not be caused to damage when taking out, has reached antisitic defect effect, has improved
Advances of operative technique and healing progress.
In the present embodiment, pre- contractibility 3 includes pre- contraction cranse 31 and degradable washer 32, shrinks cranse 31 in advance and can drop
Solution washer 32, which is bound round, to be located in annular groove 124, and degradable washer 32 is located at pre- shrink between cranse 31 and soft connection sheet 123.It should
In structure, degradable washer 32 provides an outside resistance to the pre- cranse 31 that shrinks in early period, degrades in degradable washer 32
Afterwards, which disappears, and the shrink space for shrinking cranse 31 in advance after mandrel 2 takes out is just bigger, that is, the convergent force formed
Also just bigger, to guarantee that screw thread umbrella piece 122 can be mobile to radial direction, to achieve the effect that actively to unload screw thread close-fitting power.
In the present embodiment, the aperture of precession operating cavity 111 is greater than the hollow cavity aperture of hollow spiral shell body 12.In the structure, this
Sample is arranged so that hollow cavity and precession operating cavity 111 form step, and hollow cavity and precession operating cavity 111 is independent,
When precession operates, hollow cavity will not be damaged, ensure that reliability when mandrel 2 dismounts.
In the present embodiment, regular polygon cavity configuration is arranged in precession operating cavity 111.Specially regular hexagon chamber is guaranteeing just
Normal screwing can avoid operation as far as possible under power.
In the present embodiment, each 122 end of screw thread umbrella piece is equipped with positioning table 1221, mandrel 2 insert in hollow cavity and with positioning
The cooperation of platform 1221 is close to.The positioning table 1221 can form mandrel 2 and axially trap, and prevent mandrel 2 from axial displacement occurs.
It further include the envelope chamber component 4 for preventing poroma from growing into precession operating cavity 111 in the present embodiment.The structure
In, after the completion of bone blot precession operation, precession operating cavity 111 is realized using envelope chamber component 4 and is blocked, to prevent bone uptake
When poroma grown into precession operating cavity 111, on the one hand play the role of protect hollow cavity, on the other hand can be further improved and take
Effect out.
In the present embodiment, envelope chamber component 4 includes lid 41 and elasticity envelope chamber pad 42, and elasticity envelope chamber pad 42 is nested in hollow spiral shell
In the hollow cavity of body 12, the lid of lid 41 is closed at the accent of screw head 11.In the structure, elasticity envelope chamber pad 24, which plays, fills out hollow cavity
Stifled and protective effect, and lid 41 plays the sealing effect of the accent to screw head 11, reaches closure function by second level protection.
In the present embodiment, lid 41 is equipped with the push-and-pull for extending in precession operating cavity 111 and padding 42 snappings with elasticity envelope chamber
Bar 43, push-pull rod 43 be equipped with discount 431, mandrel 2 be equipped with button platform 21, elasticity envelope chamber pad 42 both ends be equipped with discount 431 with
And the interior expansion catching groove 421 that button platform 21 cooperates.In the structure, push-pull rod 23 is detained by discount 431 and the interior expansion catching groove 421 of one end
It connects, mandrel 2 is by interior 421 snapping of expansion catching groove of button platform 21 and the other end, and during installation, 43 pairs of elasticity envelope chambers of push-pull rod pad 42 shapes
At pushing, the reversed elastic force of elasticity envelope chamber pad 42 can drive lid 41 and the accent of screw head 11 to form close connection；It is taken subsequent
Out when lid 41, push-pull rod 43 can together be taken elasticity envelope chamber pad 42 and mandrel 2 out of, improve the convenience of dismounting.
In the present embodiment, lid 41 is set as nut, and nut and screw head 11 are threadedly engaged and the screw thread of nut and screw head 11
Cooperation has gap in the axial direction.In the structure, nut is threadedly engaged with screw head 11, but should be matched with a kind of gap is combined into
It closes, i.e., not will form final fastening force when nut and screw head 11 are threadedly engaged, final fastening force is to seal chamber pad by elasticity
42 reversed elastic force drives nut to be axially close to the screw thread of screw head 11, is arranged in this way also for the guarantee back-out of lid 41
Convenience.
Embodiment 2:
Fig. 8 to Figure 12 shows second of embodiment of umbrella bone blot that the present invention just dismantles, the bone blot with
Embodiment 1 is essentially identical, and difference is only that: in the present embodiment, the periphery of lid 41 is equipped with chuck 411, and the precession of screw head 11 is grasped
Make chamber 111 and be equipped with L-type card slot 1111 at accent, chuck 411 along L-type card slot 1111 vertically enter and rotate after angle with L
The translot of type card slot 1111 is clamped.In the structure, during installation, make chuck 411 along the vertical of L-type card slot 1111 by gland body 41
Into then rotating angle is clamped the translot of chuck 411 and L-type card slot 1111；The reverse operating in subsequent taking-up lid 41
, equally improve the convenience of dismounting.
Although the present invention is disclosed as above with preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (10)
1. the umbrella bone blot just dismantled of one kind, including bolt body (1), the bolt body (1) include screw head (11) and
Hollow spiral shell body (12), it is characterised in that: the hollow spiral shell body (12) includes polished rod portion (121), at least two panels screw thread umbrella piece (122)
And the soft connection sheet (123) with screw thread umbrella piece (122) quantity Matching, each screw thread umbrella piece (122) are circumferential along polished rod portion (121)
It is evenly arranged and each screw thread umbrella piece (122) is connect by soft connection sheet (123) with polished rod portion (121) end edge, the soft company
Contact pin (123) periphery forms annular groove (124), is inserted in the hollow cavity of the hollow spiral shell body (12) for driving screw thread umbrella piece
(122) mandrel (2) of straightened condition is kept after inner wall stress, is provided in the annular groove (124) for driving screw thread umbrella piece
(122) the pre- contractibility (3) of straightened condition is kept after end wall stress, screw head (11) end is offered for bolt body
(1) when precession stress precession operating cavity (111), the precession operating cavity (111) communicates with the hollow cavity of hollow spiral shell body (12),
The screw head (11) is equipped with the drawing step (112) exited for bolt body (1) close to one end of hollow spiral shell body (12).
2. the umbrella bone blot according to claim 1 just dismantled, it is characterised in that: the pre- contractibility (3) includes
Pre- contraction cranse (31) and degradable washer (32), the pre- contraction cranse (31) and degradable washer (32) bind round and are located at annular groove
(124) in, the degradable washer (32) is located at pre- shrink between cranse (31) and soft connection sheet (123).
3. the umbrella bone blot according to claim 2 just dismantled, it is characterised in that: the precession operating cavity (111)
Aperture be greater than hollow spiral shell body (12) hollow cavity aperture.
4. the umbrella bone blot according to claim 3 just dismantled, it is characterised in that: the precession operating cavity (111)
Regular polygon cavity configuration is set.
5. the umbrella bone blot according to claim 4 just dismantled, it is characterised in that: each screw thread umbrella piece (122)
End is equipped with positioning table (1221), and the mandrel (2) inserts in hollow cavity and is close to positioning table (1221) cooperation.
6. the umbrella bone blot according to any one of claim 1 to 5 just dismantled, it is characterised in that: further include using
In the envelope chamber component (4) for preventing poroma from growing into precession operating cavity (111).
7. the umbrella bone blot according to claim 6 just dismantled, it is characterised in that: the envelope chamber component (4) includes
Lid (41) and elasticity envelope chamber pad (42), elasticity envelope chamber pad (42) is nested in the hollow cavity of hollow spiral shell body (12), described
Lid (41) lid closes at the accent of screw head (11).
8. the umbrella bone blot according to claim 7 just dismantled, it is characterised in that: the lid (41), which is equipped with, stretches
Push-pull rod (43) in precession operating cavity (111) and with elasticity envelope chamber pad (42) snapping, the push-pull rod (43) are equipped with button
Head (431), the mandrel (2) are equipped with button platform (21), and elasticity envelope chamber pad (42) both ends are equipped with and discount (431) and buckle
The interior expansion catching groove (421) of platform (21) cooperation.
9. the umbrella bone blot according to claim 8 just dismantled, it is characterised in that: the lid (41) is set as spiral shell
Cap, the nut is threadedly engaged with screw head (11) and nut and being threadedly engaged for screw head (11) have gap in the axial direction.
10. the umbrella bone blot according to claim 9 just dismantled, it is characterised in that: the periphery of the lid (41)
Equipped with chuck (411), the precession operating cavity (111) of the screw head (11) is equipped with L-type card slot (1111) at accent, the chuck
(411) vertically entering and rotating and be clamped with the translot of L-type card slot (1111) after angle along L-type card slot (1111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251441.1A CN109938821A (en) | 2019-03-29 | 2019-03-29 | Just the umbrella bone blot dismantled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251441.1A CN109938821A (en) | 2019-03-29 | 2019-03-29 | Just the umbrella bone blot dismantled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109938821A true CN109938821A (en) | 2019-06-28 |
Family
ID=67012930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910251441.1A Pending CN109938821A (en) | 2019-03-29 | 2019-03-29 | Just the umbrella bone blot dismantled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109938821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448372A (en) * | 2019-09-06 | 2019-11-15 | 北京爱康宜诚医疗器材有限公司 | Locking fastening structure and clamp device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299593Y (en) * | 1997-05-18 | 1998-12-09 | 苑树岩 | Adjustable pressure fixing expansion bolt for fracture of neck of femur |
| CN2854170Y (en) * | 2005-11-08 | 2007-01-03 | 刘宇 | Limit expansion anchor bolt |
| KR20080105506A (en) * | 2007-05-31 | 2008-12-04 | 주식회사 지에스메디칼 | A pedicle screw module |
| US20100023012A1 (en) * | 2008-07-23 | 2010-01-28 | University Of Louisville Research Foundation, Inc. | Device and method to prevent hip fractures |
| WO2016019916A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Contraction connection assembly, contraction connection structure and connection method |
| CN105736547A (en) * | 2016-04-20 | 2016-07-06 | 河南科技大学 | Bolt and bolt assembly |
| JP3210797U (en) * | 2016-04-25 | 2017-06-08 | 李奇 | Bolt anchor |
| US20170291227A1 (en) * | 2015-01-07 | 2017-10-12 | Anchor Birds Co., Ltd. | Post-installed anchor |
| JP2018080520A (en) * | 2016-11-17 | 2018-05-24 | 株式会社ケー・エフ・シー | Hole-in anchor instrument, hole-in anchor and hole-in anchor fitting structure |
| CN210095890U (en) * | 2019-03-29 | 2020-02-21 | 中南大学湘雅医院 | Umbrella-shaped bone screw bolt convenient to disassemble |
-
2019
- 2019-03-29 CN CN201910251441.1A patent/CN109938821A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299593Y (en) * | 1997-05-18 | 1998-12-09 | 苑树岩 | Adjustable pressure fixing expansion bolt for fracture of neck of femur |
| CN2854170Y (en) * | 2005-11-08 | 2007-01-03 | 刘宇 | Limit expansion anchor bolt |
| KR20080105506A (en) * | 2007-05-31 | 2008-12-04 | 주식회사 지에스메디칼 | A pedicle screw module |
| US20100023012A1 (en) * | 2008-07-23 | 2010-01-28 | University Of Louisville Research Foundation, Inc. | Device and method to prevent hip fractures |
| WO2016019916A1 (en) * | 2014-08-08 | 2016-02-11 | 杨东佐 | Contraction connection assembly, contraction connection structure and connection method |
| US20170291227A1 (en) * | 2015-01-07 | 2017-10-12 | Anchor Birds Co., Ltd. | Post-installed anchor |
| CN105736547A (en) * | 2016-04-20 | 2016-07-06 | 河南科技大学 | Bolt and bolt assembly |
| JP3210797U (en) * | 2016-04-25 | 2017-06-08 | 李奇 | Bolt anchor |
| JP2018080520A (en) * | 2016-11-17 | 2018-05-24 | 株式会社ケー・エフ・シー | Hole-in anchor instrument, hole-in anchor and hole-in anchor fitting structure |
| CN210095890U (en) * | 2019-03-29 | 2020-02-21 | 中南大学湘雅医院 | Umbrella-shaped bone screw bolt convenient to disassemble |
Non-Patent Citations (1)
| Title |
|---|
| 刘远禄等: "折断式螺纹钉在髋部骨折的应用", 生物骨科材料与临床研究, vol. 1, no. 6, 15 December 2004 (2004-12-15), pages 16 - 18 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448372A (en) * | 2019-09-06 | 2019-11-15 | 北京爱康宜诚医疗器材有限公司 | Locking fastening structure and clamp device |
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