CN107789100A - Fusion device feeder - Google Patents
Fusion device feeder Download PDFInfo
- Publication number
- CN107789100A CN107789100A CN201711294590.3A CN201711294590A CN107789100A CN 107789100 A CN107789100 A CN 107789100A CN 201711294590 A CN201711294590 A CN 201711294590A CN 107789100 A CN107789100 A CN 107789100A
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- CN
- China
- Prior art keywords
- fusion device
- core
- conduit
- hole
- guide rod
- 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.)
- Granted
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 113
- 241000270295 Serpentes Species 0.000 claims description 63
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001356 surgical procedure Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 206010052428 Wound Diseases 0.000 description 7
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 206010023509 Kyphosis Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010035226 Plasma cell myeloma Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 201000000050 myeloid neoplasm Diseases 0.000 description 1
- 230000001009 osteoporotic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4627—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4687—Mechanical guides for implantation instruments
Abstract
The invention provides a kind of fusion device feeder, belong to medical instruments field, including：Conduit；Slide the flexibility in the conduit and push away core, the core that pushes away is used to pass from the opening of the catheter proximal end；And pilot hole of the opening towards the fusion device rear end is provided with the guide rod for pushing away core and being connected, fusion device, the guide rod is used to slide back and forth in the pilot hole under the drive for pushing away core.The fusion device feeder of the present invention is in the case where fusion device blocks, the guide rod penetrated in pilot hole is promoted forward by the bending for pushing away core, so that guide rod slips into the precalculated position of centrum along pilot hole, then fusion device is promoted by conduit, fusion device is set to slip into the precalculated position of centrum along guide rod, the operation for repeatedly rotating fusion device is avoided, surgical procedure is simplified, shortens operating time.
Description
Technical field
The invention belongs to technical field of medical instruments, is to be related to a kind of fusion device feeder more specifically.
Background technology
With the increase of social older population, osteoporotic vertebral extruding fracture increases year by year, meanwhile, centrum blood vessel
The mechanical strength that knurl, myeloma and other many vertebral tumors also result in centrum reduces, and then causes centrum extruding fracture.Vertebra
Body extruding fracture be mainly shown as pain, progressive backbone collapse, kyphosis deformity, have a strong impact on quality of life, the body of patient
Activity, mental health and life-span.
Traditional therapeutic method of surgery is mostly fixed to centrum using fusion device, supported, in order to reduce to patient's body
The injury of body, traditional therapeutic method of surgery cut less wound near vertebra, then clamp fusion device by feeder
Rear end, by fusion device be sent into vertebra precalculated position.In the process, due to wound is smaller and vertebra in precalculated position with
There is certain angle in wound, feeder needs to adjust the angle of fusion device, can just fusion device is smoothly sent into precalculated position.It is existing
Some feeders, feeder is operated by operator and rotated, fusion device is turned over certain angle.However, due to being cut during operation
The wound opened is smaller, and existing feeder every time can only rotate fusion device less angle, when needing fusion device turning over one
, it is necessary to which fusion device is loosened during individual larger angle, clamp, rotate again again, multiple operation is realized, adds operation
Difficulty, extend operating time.
The content of the invention
It is an object of the invention to provide a kind of fusion device feeder, to solve existing fusion present in prior art
Device feeder is in the case of surgical wound is less, it is necessary to which fusion device could be sent into the pre-determined bit of centrum by repeatedly rotating fusion device
The technical problem put
To achieve the above object, the technical solution adopted by the present invention is：A kind of fusion device feeder is provided, including：Conduit；
Slide the flexibility in the conduit and push away core, the core that pushes away is used to pass from the opening of the catheter proximal end；With
And
With the guide rod for pushing away core and being connected, fusion device is provided with pilot hole of the opening towards the fusion device rear end, described to lead
Bar is used to slide back and forth in the pilot hole under the drive for pushing away core.
Further, the fusion device feeder also includes in the conduit and is sheathed on the flexibility pushed away outside core
Ejection pipe；The ejection pipe is slidably matched and for pushing away core slip described in fusion device edge described in ejection with the core that pushes away.
Further, the ejection pipe includes more than two second snakes section, and second snake section is communicated with described the
The head end of two snakes section and the second through hole of tail end；The tail end of the head end of the second snake section and the adjacent second snake section is hinged,
Second through hole of multiple second snake sections is sequentially communicated to form accommodating second guide hole for pushing away core.
Further, it is described push away core and be provided be used to making described to push away core and be changed into rigid lock after penetrating in the pilot hole
Tight mechanism.
Further, the core that pushes away includes more than two first snakes section, the head end of first snake section with it is adjacent described
The tail end of first snake section is hinged.
Further, the retaining mechanism includes：The head end of the first snake section and the first through hole of tail end are connected, it is adjacent
The first through hole of the first snake section connects to form the first guide hole；And
By first guide hole and the locking rope that is saved through multiple first snakes, the front end of the locking rope with it is described
Guide rod connects.
Further, the guide rod is communicated with the through hole of the guide rod front-end and back-end, and the locking rope is arranged in
In the through hole, and the front end of the locking rope is provided with the dop being used for through hole front end clamping.
Further, the conduit, which is provided with, is used to the ejection pipe pushing away core ejection or what is pulled backward stretch forward described in
Contracting mechanism.
Further, the telescoping mechanism includes：Through the guide groove of the duct wall；
Flexible push pedal in the conduit and outside the ejection pipe, the front end of the flexible push pedal pushes away with described
The front end of push pipe connects and is used to promote the ejection pipe to push away core slip described in；And
Push handle outside the conduit, the push handle are connected through the guide groove and with the rear end of the flexible push pedal.
Further, the outer wall of the conduit is provided with positioned at the push handle side and for corresponding with the displacement of the push handle
Scale.
Further, the front end of the conduit has the locating surface that the rear end face with the fusion device fits.
Further, the guide rod is in the arc-shaped.
The beneficial effects of the present invention are：Compared with prior art, fusion device feeder of the invention blocks in fusion device
In the case of, the guide rod penetrated in pilot hole is promoted forward by the bending for pushing away core so that guide rod slips into along pilot hole
The precalculated position of centrum, fusion device is then promoted by conduit, fusion device is slipped into the precalculated position of centrum along guide rod, avoids
The operation of fusion device is repeatedly rotated, surgical procedure is simplified, shortens operating time.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the structural representation in the state of fusion device feeder second step in use provided in an embodiment of the present invention
Figure；
Fig. 2 is the structural representation in the state of fusion device feeder the 3rd step in use shown in Fig. 1；
Fig. 3 is the structural representation in the state of fusion device feeder the 4th step in use shown in Fig. 1；
Fig. 4 is the structural representation in the state of fusion device feeder the 5th step in use shown in Fig. 1；
Fig. 5 is the front view for the fusion device feeder that another embodiment of the present invention provides；
Fig. 6 is the top view of the fusion device feeder shown in Fig. 5；
Fig. 7 is the Postductal front view of removing of the fusion device feeder shown in Fig. 5；
Fig. 8 is the front view for pushing away core and guide rod of the fusion device feeder shown in Fig. 5；
Fig. 9 is the sectional view at A in Fig. 8；
Figure 10 is the enlarged drawing at B in Fig. 5；
Figure 11 is the structural representation in the state of fusion device feeder the 3rd step in use shown in Fig. 5.
Wherein, each reference in figure：
1- centrums；11- precalculated positions；2- fusion devices；21- pilot holes；3- conduits；31- locating surfaces；4- ejection pipes；41-
Two snakes are saved；The through holes of 42- second；5- pushes away core；52- dops；The snakes of 53- first are saved；54- first through hole；55- locking ropes；6- guide rods；
61- through holes；71- guide grooves；72- flexibility push pedals；73- push handles.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple ", " several " be meant that two or
Two or more, unless otherwise specifically defined.
Also referring to Fig. 1 to Figure 11, now fusion device feeder provided by the invention is illustrated.Fusion device is pushed into
Device, including：Conduit 3；
The flexibility slided in conduit 3 pushes away core 5, pushes away the opening that core 5 is used for from the front end of conduit 3 and passes；And
The guide rod 6 being connected with pushing away core 5, fusion device are provided with pilot hole of the opening towards fusion device rear end, and guide rod 6 is used to push away
Slid back and forth under the drive of core 5 in pilot hole 21.
Compared with prior art, fusion device feeder provided by the invention, fusion device feeder of the invention is in fusion device 2
In the case of blocking, the guide rod 6 penetrated in pilot hole 21 is promoted forward by the bending for pushing away core 5 so that guide rod 6 is along pilot hole
21 slip into the precalculated position 11 of centrum 1, then promote fusion device 2 by conduit 3, fusion device 2 is slipped into centrum along guide rod 6
Precalculated position 11, avoid repeatedly rotate fusion device 2 operation, simplify surgical procedure, shorten operating time.
Specifically, the rear and front end insertion of conduit 3.Flexibility pushes away core 5 and is arranged in conduit 3, and pushing away core 5 can use by elasticity
The elongated member that material or flexible material make.The rear end of core 5 is pushed away by push-and-pull flexibility, flexibility pushes away core 5 in the inner chamber of conduit 3
In slide back and forth so that flexibility pushes away core 5 and stretches out or retract from the front end of the inner chamber of conduit 3.Pushing away the rear end of core 5 can be provided with wearing
The pull bar being slidably matched in conduit 3 and with conduit 3, the rear end for pushing away core 5 is promoted or pulled by pull bar.After guide rod 6
Hold and be fixedly connected with pushing away the front end of core 5, guide rod 6 is used to penetrate in the pilot hole 21 of fusion device 2, fusion device 2 is slided along guide rod
It is dynamic.The shape of guide rod can be circular arc bar, precalculated position 11 that specifically can be according to vertebra and the angle-determining of wound.
In use, also referring to Fig. 1 to Fig. 4, the first step, fixed fusion device 2.Guide rod 6 is penetrated to the guiding of fusion device 2
In hole 21 so that fusion device 2 is enclosed on guide rod 6, and then drawing pushes away the rear end of core 5, is made to push away core 5 and is withdrawn in the inner chamber of conduit 3, makes
Fusion device 2 is fixed on the front end of conduit 3 by guide rod 6.Second step, it is sent into fusion device 2.Then fusion device 2 is sent by conduit 3
Enter the precalculated position 11 of vertebra, during this, fusion device 2 can holding wound Yu vertebra precalculated position 11 corner.3rd
Step, it is pushed into guide rod 6.For the holding of fusion device 2 after the corner in wound Yu vertebra precalculated position 11, ejection pushes away the rear end of core 5, makes to push away
Core 5 stretches out and entered in pilot hole 21 from the opening of the front end of conduit 3, and the front end for pushing away core 5 pushes away guide rod 6 from the front end of pilot hole 21
Go out, guide rod 6 is entered the precalculated position 11 of vertebra, pilot hole 21 plays certain guide effect to guide rod 6.4th step, push-in
Fusion device 2.Operate conduit 3 and promote fusion device 2, fusion device 2 is slipped into the precalculated position 11 of vertebra along guide rod 6.5th step,
Exit guide rod 6.Finally, guide rod 6 is exited from the pilot hole 21 of fusion device 2.
Further, also referring to Figure 10, a kind of specific embodiment party as fusion device feeder provided by the invention
Formula, fusion device feeder also include in conduit 3 and are sheathed on the flexible ejection pipe 4 pushed away outside core 5；Ejection pipe 4 is slided with pushing away core 5
It is dynamic to coordinate and slided for ejection fusion device 2 along core 5 is pushed away.
Pushed away specifically, ejection pipe 4 is flexible boot outside core 5, ejection pipe 4 can be used by elastomeric material or flexible material system
The pipe of work.In use, when the 4th step is pushed into fusion device 2, as illustrated, operation ejection pipe 4 promotes forward fusion device 2, make
Fusion device 2 slips into the precalculated position 11 of vertebra along guide rod 6.5th step, exit guide rod 6.As illustrated, first by ejection pipe 4
In the inner chamber for retracting conduit 3, it then will push away core 5 and retract in ejection pipe 4, finally move back guide rod 6 from the pilot hole 21 of fusion device 2
Go out.The rear end of ejection pipe 4 can be provided with conduit 3 and be sheathed on the guide pipe pushed away outside core 5.Guide pipe is with pushing away core 5 and/or leading
Pipe 3 is slidably matched, and pulls ejection pipe 4 for ejection forward or backward
Further, also referring to Fig. 7 and Figure 10, as a kind of specific real of fusion device feeder provided by the invention
Mode is applied, ejection pipe 4 includes more than two second snakes section 41, and the second snake section 41 is communicated with the head end and tail of the second snake section 41
Second through hole 42 at end；The tail end of head end and adjacent second the snake section 41 of second snake section 41 is hinged, and multiple second snakes save the of 41
Two through holes 42 are sequentially communicated to form accommodating the second guide hole for pushing away core 5.
Formed specifically, ejection pipe 4 is hinged successively by multiple second snakes section 41 so that ejection pipe 4 is in flexibility.Second snake is saved
41 in cylinder, and its head end is rotating shaft, and rotating shaft is vertical with the second snake 41 cephlad-caudals of section.The tail end of second snake section 41 is receiving phase
Adjacent second snake saves the groove of the rotating shaft of 41 head ends.The axis of second snake, 41 cephlad-caudals of section is provided with the second through hole 42 of insertion.
The second through hole 42 connection of adjacent second snake section 41 forms accommodating the second guide hole for pushing away core 5 so that it is sliding in the second guide hole to push away core 5
It is dynamic.
Further, a kind of embodiment as fusion device feeder provided by the invention, push away core 5 and be provided with use
It is changed into rigid retaining mechanism after penetrating in pilot hole 21 in making to push away core 5.After the 3rd step is pushed into guide rod 6, pass through the machine of locking
Structure will push away core 5 and be changed into rigidity, make to push away core 5 preferably fusion device 2 can be oriented in the 4th step.
Further, also referring to Fig. 8 to Fig. 9, as a kind of specific real of fusion device feeder provided by the invention
Mode is applied, pushing away core 5 includes more than two first snakes section 53, and the tail end of the head end and adjacent first snake section 53 of the first snake section 53 is cut with scissors
Connect.
Formed specifically, ejection pipe 4 is hinged successively by multiple first snakes section 53 so that ejection pipe 4 is in flexibility.First snake is saved
53 in cylinder, and its head end is rotating shaft, and rotating shaft is vertical with the first snake 53 cephlad-caudals of section.The tail end of first snake section 53 is receiving phase
Adjacent first snake saves the groove of the rotating shaft of 53 head ends.
Further, retaining mechanism includes：Connect the first snake section 53 head end and tail end first through hole 54, adjacent first
The connection of first through hole 54 of snake section 53 forms the first guide hole；And
By the first guide hole and through the locking rope 55 of multiple first snakes section 53, the front end of locking rope 55 is connected with guide rod 6.
Locking rope 55 is used for after itself rear end tension, and adjacent first snake section 53 is mutually extruded so that adjacent first snake is saved
53 jointed shaft friction lock.
Formed specifically, ejection pipe 4 is hinged successively by multiple first snakes section 53 so that ejection pipe 4 is in flexibility.First snake is saved
53 in cylinder, and its head end is rotating shaft, and rotating shaft is vertical with the first snake 53 cephlad-caudals of section.The tail end of first snake section 53 is receiving phase
Adjacent first snake saves the groove of the rotating shaft of 53 head ends.The axis of first snake, 53 cephlad-caudals of section is provided with the first through hole 54 of insertion.
The connection of first through hole 54 of adjacent first snake section 53 forms the first guide hole of accommodating locking rope 55 so that locking rope 55 is led first
It can be moved forward and backward in hole.The front end of locking rope 55 is connected with guide rod 6, rear end hand-held or that core 5 is pushed away using other modes fixation, so
Afterwards by pulling the rear end of locking rope 55 backward from the rear end for pushing away core 5 so that guide rod 6 and push away the rear end of core 5 by adjacent first
The mutually extruding of snake section 53 so that adjacent first snake saves the axis friction power increase of 53 hinged places, and the first adjacent snake section 53 is relative
It is fixed, make to push away core 5 and be changed into rigidity.The pull bar for pushing away the rear end of core 5 is provided with the through hole that is connected with the first guide hole, and locking rope 55 is from pushing away
The rear end of the through hole of pull bar passes.
Further, also referring to Fig. 9, a kind of specific embodiment party as fusion device feeder provided by the invention
Formula, guide rod 6 are communicated with the through hole 61 of the front-end and back-end of guide rod 6, and locking rope 55 is arranged in through hole 61, and locking rope 55
Front end be provided with and be used for dop 52 with the front end clamping of through hole 61.Guide rod 6 is the pipe of circular arc, and it is internal for connection itself
Front-end and back-end through hole 61.Dop 52 is spherical or taper.Locking rope 55, which is arranged in, to be pushed away in core 5, the rear end of locking rope 55 from
The rear end of core 5 is pushed away to pass.The front end of locking rope 55 from pushing away after the front end of core 5 passes, penetrate in the through hole 61 of guide rod 6 and with positioned at leading
The dop 52 of the front end of bar 6 connects.When pulling the rear end of locking rope 55 backward, guide rod 6 and each first snake are saved 53 by dop 52
Extrude backward, make guide rod 6 and push away core 5 and form a rigid entirety.In such a scheme, the rear end of guide rod 6 can be with pushing away core 5
Front end is hinged.The rear end of guide rod 6 is compressed to the front end for pushing away core 5 by dop 52 so that guide rod 6 and the rotating shaft for pushing away the hinged place of core 5
Frictional force increases, and guide rod 6 is relatively fixed with pushing away core 5.
Further, also referring to Fig. 5 to Fig. 7 and Figure 11, one as fusion device feeder provided by the invention
Kind of embodiment, conduit 3, which is provided with, to be used for ejection pipe 4 along pushing away core 5 ejection or the telescoping mechanism pulled backward forward.Pass through
Telescoping mechanism carrys out ejection ejection pipe 4 so that and it is easy to operate, it is more laborsaving.
Further, also referring to Fig. 5 to Fig. 7 and Figure 11, one as fusion device feeder provided by the invention
Kind embodiment, telescoping mechanism include：Through the guide groove 71 of the side wall of conduit 3；
Before the flexible push pedal 72 that conduit 3 is interior and is located at outside ejection pipe 4, the front end of flexible push pedal 72 and ejection pipe 4
End connects and for promoting ejection pipe 4 to be slided along core 5 is pushed away；And
Push handle 73 outside conduit 3, push handle 73 are connected through guide groove 71 and with the rear end of flexible push pedal 72.
Specifically, flexible push pedal 72 is arranged in the space in conduit 3 outside ejection pipe 4, flexible push pedal 72 can be steel
Strip shell fragment, the strip shell fragment of rubber or the strip thin slice of plastics.Guide groove 71 is the strip grooves through the side wall of conduit 3, its
Long axis direction is axially arranged along conduit 3.Push handle 73 is located at outside conduit 3, is connected through guide groove 71 with the flexible rear end of push pedal 72.It is flexible
The front end of push pedal 72 is connected with the front end of ejection pipe 4 so that in the 4th step, when operation ejection pipe 4 promotes forward fusion device 2,
Promote push handle 73 that the front end of flexible push pedal 72 is together stretched out with the front end of ejection pipe 4 from the front end of conduit 3 forward, flexibility pushes away
Plate 72 is deformed upon to adapt to be changed into the rigid guiding for pushing away core 5.
Further, a kind of embodiment as fusion device feeder provided by the invention, the outer wall of conduit 3 are set
Have positioned at the side of push handle 73 and be used for scale corresponding with the displacement of push handle 73.Scale can be the axially arranged use along conduit 3
To indicate the groove of shift length.By indicating that the displacement of push handle 73 will be seen that ejection pipe 4 enters the precalculated position 11 of centrum 1
Depth, easily facilitate operation.
Further, also referring to Fig. 3 to Fig. 4, as a kind of specific real of fusion device feeder provided by the invention
Mode is applied, the front end of conduit 3 has the locating surface 31 that the rear end face with fusion device 2 fits.
Specifically, locating surface 31 is the front end face of conduit 3.The front end of guide rod 6 penetrates from the rear end of pilot hole 21 so that melts
The rear end of clutch 2 abuts with the front end of conduit 3, and the rear end face of the locating surface 31 and fusion device 2 of the front end of conduit 3 fits so that
The angle of fusion device 2 and conduit 3 keeps fixing.Locating surface 31 can be concave face, and the corresponding rear end of fusion device 2 is crowning.
Further, also referring to Fig. 1 to Fig. 4 and Fig. 8 and Fig. 9, as fusion device feeder provided by the invention
A kind of embodiment, guide rod 6 is in the arc-shaped.Specifically, guide rod 6 is in the arc-shaped.The pilot hole 21 of fusion device 2 is circular arc
Shape, and connect the front-end and back-end of fusion device 2.
Also referring to Fig. 1 to Fig. 7 and Figure 11, fusion device 2 is provided with the pilot hole 21 for being used for penetrating above-mentioned guide rod 6.Melt
Clutch 2 can set pilot hole 21, pilot hole 21 is after fusion device 2 on the basis of the existing structure of fusion device 2 inside it
End is provided with opening.Penetrated in use, the front end of guide rod 6 is located in the opening of the rear end of fusion device 2 from pilot hole 21, and and fusion device
2 clampings.Pilot hole 21 can be the through hole of the circular arc of connection fusion device 2 front-end and back-end.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. fusion device feeder, it is characterised in that including：Conduit (3)；Slide the flexibility in the conduit (3) and push away core (5), the core (5) that pushes away is for the opening from the conduit (3) front end Pass；AndWith the guide rod (6) for pushing away core (5) and being connected, fusion device is provided with pilot hole of the opening towards the fusion device rear end, described Guide rod (6) is used to slide back and forth in the pilot hole (21) under the drive for pushing away core (5).
- 2. fusion device feeder as claimed in claim 1, it is characterised in that：The fusion device feeder is also included located at described In conduit (3) and it is sheathed on and described pushes away the flexible ejection pipe (4) of core (5) outside；The ejection pipe (4) pushes away core (5) slip with described Coordinate and slided for fusion device (2) described in ejection along the core (5) that pushes away.
- 3. fusion device feeder as claimed in claim 2, it is characterised in that：The ejection pipe (4) includes more than two the Two snakes save (41), and the second snake section (41) is communicated with the head end of the second snake section (41) and the second through hole of tail end (42)；The head end of the second snake section (41) and the tail end of the adjacent second snake section (41) are hinged, multiple second snake sections (41) second through hole (42) is sequentially communicated to form accommodating second guide hole for pushing away core (5).
- 4. fusion device feeder as claimed in claim 2 or claim 3, it is characterised in that：The core (5) that pushes away is provided with described for making Push away core (5) and be changed into rigid retaining mechanism after penetrating in the pilot hole (21).
- 5. fusion device feeder as claimed in claim 4, it is characterised in that：The core (5) that pushes away includes more than two first Snake saves (53), and the head end of the first snake section (53) and the tail end of the adjacent first snake section (53) are hinged.
- 6. fusion device feeder as claimed in claim 5, it is characterised in that：The retaining mechanism includes：Connect described first The head end of snake section (53) and the first through hole (54) of tail end, the first through hole (54) connection of the adjacent first snake section (53) Form the first guide hole；AndBy first guide hole and before the locking rope (55) of multiple first snake sections (53), the locking rope (55) End is connected with the guide rod (6).
- 7. fusion device feeder as claimed in claim 6, it is characterised in that：The guide rod (6) is communicated with the guide rod (6) The through hole (61) of front-end and back-end, the locking rope (55) is arranged in the through hole (61), and the locking rope (55) Front end be provided with and be used for dop (52) with the through hole (61) front end clamping.
- 8. fusion device feeder as claimed in claim 2 or claim 3, it is characterised in that：The conduit (3), which is provided with, to be used to push away described Push pipe (4) pushes away core (5) ejection or the telescoping mechanism pulled backward forward along described.
- 9. fusion device feeder as claimed in claim 8, it is characterised in that：The telescoping mechanism includes：Through the conduit (3) guide groove (71) of side wall；In the conduit (3) and it is located at the flexible push pedal (72) of the ejection pipe (4) outside, before the flexible push pedal (72) End is connected with the front end of the ejection pipe (4) and is used to promote the ejection pipe (4) to slide along the core (5) that pushes away；AndLocated at the push handle (73) of the conduit (3) outside, the push handle (73) through the guide groove (71) and with the flexible push pedal (72) rear end connection.
- 10. fusion device feeder as claimed in claim 9, it is characterised in that：The outer wall of the conduit (3) is provided with positioned at described Push handle (73) side and it is used for scale corresponding with the displacement of the push handle (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294590.3A CN107789100B (en) | 2017-12-08 | Fusion device pusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294590.3A CN107789100B (en) | 2017-12-08 | Fusion device pusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107789100A true CN107789100A (en) | 2018-03-13 |
| CN107789100B CN107789100B (en) | 2024-04-12 |
Family
ID=
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| US20080125865A1 (en) * | 2006-09-21 | 2008-05-29 | Abdelgany Mahmoud F | Articulating interbody spacer, vertebral body replacement |
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| CN103690228A (en) * | 2013-12-12 | 2014-04-02 | 宁波华科润生物科技有限公司 | Centrum expansion ball bag system |
| CN104116552A (en) * | 2014-08-04 | 2014-10-29 | 上海三友医疗器械有限公司 | Intervertebral fusion device and installation tool thereof |
| US20170105743A1 (en) * | 2014-06-13 | 2017-04-20 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
| CN208582559U (en) * | 2017-12-08 | 2019-03-08 | 河北瑞鹤医疗器械有限公司 | Fusion device feeder |
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| US20080091170A1 (en) * | 2003-09-12 | 2008-04-17 | Vargas Jaime S | Cannula system for free-space navigation and method of use |
| US20050277945A1 (en) * | 2004-06-14 | 2005-12-15 | Usgi Medical Inc. | Apparatus and methods for performing transluminal gastrointestinal procedures |
| US20080125865A1 (en) * | 2006-09-21 | 2008-05-29 | Abdelgany Mahmoud F | Articulating interbody spacer, vertebral body replacement |
| US20130023997A1 (en) * | 2010-04-06 | 2013-01-24 | Hassan Razian | System for replacing an intervertebral disc |
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| CN208582559U (en) * | 2017-12-08 | 2019-03-08 | 河北瑞鹤医疗器械有限公司 | Fusion device feeder |
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