CN207613829U - Nucleus pulposus clamp - Google Patents
Nucleus pulposus clamp Download PDFInfo
- Publication number
- CN207613829U CN207613829U CN201720809229.9U CN201720809229U CN207613829U CN 207613829 U CN207613829 U CN 207613829U CN 201720809229 U CN201720809229 U CN 201720809229U CN 207613829 U CN207613829 U CN 207613829U
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- CN
- China
- Prior art keywords
- clamp handle
- nucleus pulposus
- fixed
- activity
- handle
- 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.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 claims abstract description 67
- 230000004927 fusion Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Paper (AREA)
Abstract
The utility model discloses a kind of nucleus pulposus clamps, belong to the field of medical instrument technology, it is desirable to provide a kind of nucleus pulposus clamp, its key points of the technical solution are that：A kind of nucleus pulposus clamp, including fixed connecting rod, the fixation clamp handle in fixed rod rear end, movable rod is set, activity clamp handle and the expanding elastic plectrum that is arranged between fixed clamp handle and activity clamp handle in movable rod rear end are set, activity clamp handle is hinged on by axis pin on fixed connecting rod, and the one end of fixed clamp handle and activity clamp handle far from fixed connecting rod is equipped with the limiting device opened for limiting fixed clamp handle and activity clamp handle；The utility model has the advantages that：Activity clamp handle and fixed clamp handle are limited by limiting device, reduce the possibility that nucleus pulposus clamp separately causes nucleus pulposus to fall off under the elastic acting force of expanding elastic plectrum, and then reduce operation risk.
Description
Technical field
The utility model is related to the field of medical instrument technology, more particularly to a kind of nucleus pulposus clamp.
Background technology
Nucleus pulposus clamp, the main auxiliary as in bone surgery are used often in bone surgeries such as progress resection of nucleus pulposus at present
Utensil is mainly used for taking out rotten bone and finishing bone tissue.The main fixed pliers head of traditional nucleus pulposus clamp and movable binding clip use axis pin
The mode of riveting realizes opening and closing, is influenced by instrument size itself and axis pin intensity, this class instrument makes in clinical operation
Used time, there is many deficiencies, such as：Inconvenient, grasping is not secured enough, and slip phenomenon is also easy to produce when pulling back, this allows for existing
Some nucleus pulposus clamps can not meet ideal surgical effect, increase operation risk and malpractice.
The Chinese patent of notification number CN205672057U discloses a kind of nucleus pulposus clamp, including fixed connecting rod and movable rod,
Fixed connecting rod front end is provided with fixed pliers head, and fixed rod rear end is provided with fixed clamp handle, and the front end of fixed clamp handle passes through axis pin
It is hinged with activity clamp handle, expanding elastic plectrum, movable rod front end hinge are provided between fixed clamp handle and activity clamp handle
It is equipped with movable binding clip corresponding with fixed pliers head；It is provided with scale on fixed connecting rod；It is provided with the first police on fixed connecting rod
Guard against coating and the second warning coating.But this nucleus pulposus clamp, after having gripped nucleus pulposus, operator needs persistently to apply activity clamp handle
Plus-pressure, otherwise nucleus pulposus clamp can be separated under the elastic acting force of expanding elastic plectrum, fall off so as to cause nucleus pulposus, increase operation
Risk.
Utility model content
The purpose of this utility model is to provide a kind of nucleus pulposus clamp, the advantage is that：By limiting device to activity clamp handle and
Fixed clamp handle is limited, and is reduced nucleus pulposus clamp and is separated under the elastic acting force of expanding elastic plectrum and nucleus pulposus is caused to fall off
May, and then reduce operation risk.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of nucleus pulposus clamp, including
Fixed connecting rod, be arranged the fixation clamp handle in fixed rod rear end, movable rod, be arranged the activity clamp handle in movable rod rear end with
And the expanding elastic plectrum between fixed clamp handle and activity clamp handle is set, activity clamp handle is hinged on fixed connecting rod by axis pin
On, the one end of the fixed clamp handle and activity clamp handle far from fixed connecting rod is equipped with opens for limiting fixed clamp handle and activity clamp handle
Limiting device.
Through the above scheme, when operator uses nucleus pulposus clamp, swing activity clamp handle makes movable rod connect with fixed first
Gap between bar reduces, to grip nucleus pulposus, at this time since expanding elastic plectrum is compressed, to have elastic restoring force；
Operator can be limited the position of activity clamp handle and fixed clamp handle by limiting device, is reduced nucleus pulposus clamp and is dialled in expanding elastic
It is separated under the elastic acting force of piece, so as to cause the possibility that nucleus pulposus falls off, and then reduces operation risk.
Further, the limiting device includes the rack being arranged between fixed clamp handle and activity clamp handle, the rack
One end be fixedly connected in fixed clamp handle, the activity clamp handle, which is equipped with, extends to the gag lever post of rack, on the gag lever post
Equipped with the matched several sawtooth of tooth on rack；When the sawtooth is engaged with rack, the activity clamp handle and grips pincers
Handle is equipped with the gap detached with rack for sawtooth in hinged place.
Through the above scheme, when operator grips nucleus pulposus by nucleus pulposus clamp, the sawtooth in activity clamp handle and fixed clamp handle
On rack be meshed, reduce the outward possibility of activity clamp handle, to reduce lead to the possibility that nucleus pulposus falls off；Work as operation
After person takes out nucleus pulposus clamp out of human body, operator can dial up activity clamp handle and sawtooth is detached with rack, consequently facilitating
Activity clamp handle separate fixed clamp handle under the elastic acting force of expanding elastic plectrum, to conveniently make nucleus pulposus from nucleus pulposus
It is fallen on pincers.
Further, the described one end of fixed clamp handle far from axis pin is hinged with the screw thread for being pierced by activity clamp handle by articulation piece
Bar, the threaded rod are connected with latch segment in the threaded one end for being pierced by activity clamp handle, and the activity clamp handle is equipped with for threaded rod
The waist type groove of rotation.
Through the above scheme, after operator grips nucleus pulposus by nucleus pulposus clamp, operator can be towards activity clamp handle
Direction rotation lock block, until latch segment and activity clamp handle are inconsistent, it is outside to further reduce activity clamp handle for latch segment at this time
The possibility of opening leads to the possibility that nucleus pulposus falls off to reduce, improves the safety of operation.
Further, the articulation piece includes two hinged blocks being arranged in fixed clamp handle upper and lower ends, the threaded rod
Be arranged between two hinged blocks, be equipped with bolt on one of them described hinged block, the bolt be fed through threaded rod and with
Another hinged block is threadedly coupled.
Through the above scheme, threaded rod by bolted splice between two hinged blocks, when threaded rod damages, operator
Bolt can be screwed out, to take out threaded rod, and then person easy to operation replaces threaded rod.
Further, the latch segment is circumferentially with several fins, is equipped in the fixed clamp handle and activity clamp handle
The groove that several persons easy to operation hold.
Through the above scheme, fin can increase the frictional force between operator's hand and latch segment, to reduce operation
The possibility that person's hand skids during rotation lock block；Groove is more comfortable when operator then being made to hold nucleus pulposus clamp, also subtracts
The possibility that hand skids when small operator holds, improves the safety of operation.
Further, the gripping end of the movable rod is equipped with guide pad, offers on the fixed connecting rod and guide pad
Matched guide groove.
Through the above scheme, since activity clamp handle and fixed clamp handle are equipped with some gaps in hinged place, in gripping
Movable rod and fixed connecting rod, which differ, surely to be corresponded to neatly, and the setting of guide pad and guide groove then makes operator in tightening marrow
When core clamps, movable rod can be under the action of guide pad towards fixed connecting rod movement, and mobile is relatively stable, improves operation
Safety.
Further, the end of separate axis pin one end of the movable rod and fixed connecting rod is equipped with for gripping lumbar vertebrae
The fixture block of fusion device.
Through the above scheme, operator can grip lumbar fusion cages by fixture block, then be sent into people by nucleus pulposus clamp
In vivo, convenient and efficient.
Further, the periphery of the guide pad towards one end of guide groove is equipped with fillet.
Through the above scheme, the fillet of guide pad so that guide pad is more smooth when entering guide pad, is not likely to produce card
.
To sum up, the utility model has the advantages that：Activity clamp handle and fixed clamp handle are carried out by limiting device
Limit reduces the possibility that nucleus pulposus clamp separately causes nucleus pulposus to fall off under the elastic acting force of expanding elastic plectrum, and then subtracts
Minor operation risk.
Description of the drawings
Fig. 1 is the overall structure diagram that the present embodiment is used to embody nucleus pulposus clamp；
Fig. 2 is the structural schematic diagram that the present embodiment is used to embody rack and sawtooth；
Fig. 3 is the close-up schematic view in the portions A in Fig. 2；
Fig. 4 is the structural schematic diagram that the present embodiment is used to embody fixture block；
Fig. 5 is the structural schematic diagram that the present embodiment is used to embody guide pad.
In figure, 1, fixed connecting rod；11, fixed clamp handle；2, movable rod；21, activity clamp handle；211, waist type groove；3, axis pin；
4, expanding elastic plectrum；5, rack；51, gag lever post；511, sawtooth；6, threaded rod；61, latch segment；611, fin；7, hinged
Block；71, bolt；8, guide pad；81, guide groove；811, fillet；9, fixture block；10, groove.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of nucleus pulposus clamp, such as Fig. 1 and Fig. 2, including fixed connecting rod 1, be arranged 1 rear end of fixed connecting rod fixation clamp handle 11,
Movable rod 2 is arranged in the activity clamp handle 21 of 2 rear end of movable rod and setting between fixed clamp handle 11 and activity clamp handle 21
Expanding elastic plectrum 4, activity clamp handle 21 is hinged on by axis pin 3 on fixed connecting rod 1, and fixed clamp handle 11 is far from fixed connecting rod 1
One end be fixedly connected with rack 5, the other end of rack 5 extends to activity clamp handle 21, and activity clamp handle 21 is equipped with and extends to tooth
The gag lever post 51 of item 5 is fixedly connected with and matched two sawtooth 511 of tooth on rack 5 on gag lever post 51（Such as Fig. 3）, saw
The height of tooth 511 is not more than 2mm, due to activity clamp handle 21 and fixed clamp handle 11 centered on axis pin 3 there are a leverage,
The gap of 0.1mm ~ 0.2mm need to only be arranged in hinged place for activity clamp handle 21 and fixed clamp handle 11.Operator is gripped by nucleus pulposus clamp
Firmly when nucleus pulposus, sawtooth 511 in activity clamp handle 21 is meshed with the rack 5 in fixed clamp handle 11, reduce activity clamp handle 21 to
The possibility of outer opening leads to the possibility that nucleus pulposus falls off to reduce；After operator takes out nucleus pulposus clamp out of human body, operator to
Under stir adjustable clamp handle 21 so that sawtooth 511 is detached with rack 5, consequently facilitating bullet of the activity clamp handle 21 in expanding elastic plectrum 4
Property active force under far from fixed clamp handle 11, conveniently so that nucleus pulposus is fallen from nucleus pulposus clamp.
Such as Fig. 2, after operator grips nucleus pulposus by nucleus pulposus clamp, it is flared out to preferably limit activity clamp handle 21,
Fixed clamp handle 11 is fixedly connected in the upper and lower ends far from fixed connecting rod 1 there are two hinged block 7, is equipped between two hinged blocks 7
Threaded rod 6, is equipped with bolt 71 on one of hinged block 7, bolt 71 be fed through threaded rod 6 and with another 7 spiral shell of hinged block
Line connects.Since activity clamp handle 21 is in rotation process, an amount of spin is will produce between threaded rod 6 and activity clamp handle 21, from
And the waist type groove 211 rotated for threaded rod 6 is offered in activity clamp handle 21, the other end of threaded rod 6 is pierced by activity clamp handle 21
And it is threaded with cylindrical latch segment 61, latch segment 61 is circumferentially with several fins 611 for reducing operator's rubber sleeve.Work as behaviour
After author grips nucleus pulposus by nucleus pulposus clamp, operator can be towards the direction rotation lock block 61 of activity clamp handle 21, until lock
Tight block 61 is inconsistent with activity clamp handle 21, and latch segment 61 further reduces 21 outward possibility of activity clamp handle at this time, from
And reducing leads to the possibility that nucleus pulposus falls off, and improves the safety of operation.
Such as Fig. 1 and Fig. 4, since operator is equipped with some gaps in activity clamp handle 21 and fixed clamp handle 11 in hinged place, from
And in gripping movable rod 2 and fixed connecting rod 1 differ it is surely corresponding neat.Movable rod 2 gripping end be equipped with guide pad 8
（Such as Fig. 5）, offer on fixed connecting rod 1 with 8 matched guide groove 81 of guide pad, guide pad 8 is towards one end of guide groove 81
Periphery be equipped with fillet 811（Such as Fig. 5）, so that more smooth when guide pad 8 is into guide groove 81.It guide pad 8 and leads
Make operator when tightening nucleus pulposus clamp to the setting of slot 81, movable rod 2 can be under the action of guide pad 8 towards fixed connecting rod
1 movement, mobile is relatively stable, improves the safety of operation.
Such as Fig. 1 and Fig. 5, since some operations need lumbar fusion cages being sent into human body, movable rod 2 and fixed connecting rod
The end of 13 one end of separate axis pin is equipped with the fixture block 9 for gripping lumbar fusion cages.Operator can be pressed from both sides by fixture block 9
Lumbar fusion cages are taken, are then sent into human body by nucleus pulposus clamp, it is convenient and efficient.It is equipped in fixed clamp handle 11 and activity clamp handle 21
Several groove 10, consequently facilitating operator holds nucleus pulposus clamp.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of nucleus pulposus clamp, including fixed connecting rod（1）, setting is in fixed connecting rod（1）The fixation clamp handle of rear end（11）, movable rod
（2）, be arranged in movable rod（2）The activity clamp handle of rear end（21）And setting is in fixed clamp handle（11）With activity clamp handle（21）It
Between expanding elastic plectrum（4）, the activity clamp handle（21）Pass through axis pin（3）It is hinged on fixed connecting rod（1）On, it is characterized in that：
The fixed clamp handle（11）With activity clamp handle（21）Far from fixed connecting rod（1）One end be equipped with for limiting fixed clamp handle（11）With
Activity clamp handle（21）The limiting device of opening.
2. nucleus pulposus clamp according to claim 1, it is characterized in that：The limiting device includes setting in fixed clamp handle（11）With
Activity clamp handle（21）Between rack（5）, the rack（5）One end be fixedly connected on fixed clamp handle（11）On, the activity
Clamp handle（21）It is equipped with and extends to rack（5）Gag lever post（51）, the gag lever post（51）It is equipped with and rack（5）On tooth phase
Several sawtooth of cooperation（511）；
When the sawtooth（511）With rack（5）When engagement, the activity clamp handle（21）With fixed clamp handle（11）It is equipped in hinged place
For sawtooth（511）With rack（5）The gap of separation.
3. nucleus pulposus clamp according to claim 1, it is characterized in that：The fixed clamp handle（11）Far from axis pin（3）One end it is logical
It crosses articulation piece and is hinged with and be pierced by activity clamp handle（21）Threaded rod（6）, the threaded rod（6）It is being pierced by activity clamp handle（21）One
End is threaded with latch segment（61）, the activity clamp handle（21）It is equipped with for threaded rod（6）The waist type groove of rotation（211）.
4. nucleus pulposus clamp according to claim 3, it is characterized in that：The articulation piece includes setting in fixed clamp handle（11）It is upper
Two hinged blocks at lower both ends（7）, the threaded rod（6）It is arranged in two hinged blocks（7）Between, one of them described hinged block
（7）On be equipped with bolt（71）, the bolt（71）It is fed through threaded rod（6）And with another hinged block（7）It is threadedly coupled.
5. nucleus pulposus clamp according to claim 3, it is characterized in that：The latch segment（61）Be circumferentially with several fins
（611）, the fixed clamp handle（11）With activity clamp handle（21）On be equipped with the groove that several persons easy to operation hold（10）.
6. nucleus pulposus clamp according to claim 1, it is characterized in that：The movable rod（2）Gripping end be equipped with guide pad
（8）, the fixed connecting rod（1）On offer and guide pad（8）Matched guide groove（81）.
7. nucleus pulposus clamp according to claim 1, it is characterized in that：The movable rod（2）With fixed connecting rod（1）Separate pin
Axis（3）The end of one end is equipped with the fixture block for gripping lumbar fusion cages（9）.
8. nucleus pulposus clamp according to claim 6, it is characterized in that：The guide pad（8）Towards guide groove（81）One end
Periphery is equipped with fillet（811）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809229.9U CN207613829U (en) | 2017-07-05 | 2017-07-05 | Nucleus pulposus clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809229.9U CN207613829U (en) | 2017-07-05 | 2017-07-05 | Nucleus pulposus clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207613829U true CN207613829U (en) | 2018-07-17 |
Family
ID=62818770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720809229.9U Expired - Fee Related CN207613829U (en) | 2017-07-05 | 2017-07-05 | Nucleus pulposus clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207613829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265292A (en) * | 2019-09-20 | 2020-06-12 | 上海市第六人民医院 | A broken bone alignment device |
-
2017
- 2017-07-05 CN CN201720809229.9U patent/CN207613829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265292A (en) * | 2019-09-20 | 2020-06-12 | 上海市第六人民医院 | A broken bone alignment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |