CN110251195A - Terminal plate of vertebral body punch - Google Patents
Terminal plate of vertebral body punch Download PDFInfo
- Publication number
- CN110251195A CN110251195A CN201910603239.0A CN201910603239A CN110251195A CN 110251195 A CN110251195 A CN 110251195A CN 201910603239 A CN201910603239 A CN 201910603239A CN 110251195 A CN110251195 A CN 110251195A
- Authority
- CN
- China
- Prior art keywords
- nail
- plate
- vertebral body
- terminal plate
- chu ding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000008602 contraction Effects 0.000 claims description 13
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 241000587161 Gomphocarpus Species 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 230000004927 fusion Effects 0.000 abstract description 38
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 206010041549 Spinal cord compression Diseases 0.000 description 1
- 208000020339 Spinal injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Dentistry (AREA)
- Transplantation (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of terminal plate of vertebral body punch, belong to medical instruments field, including merging bar, shell, nail-plate and pushing mechanism.Shell is set to the front end of merging bar, and shell wall includes the area Chu Ding equipped with nail hole, shell be used to be placed in cone fusion device bone grafting is intracavitary and nail hole is towards terminal plate of vertebral body.Nail-plate is set in the housing, corresponding with the area Chu Ding and be equipped with ailhead for being pierced by from corresponding nail hole towards the side in the area Chu Ding.Pushing mechanism is set on merging bar, for pushing nail-plate close to the corresponding area Chu Ding so that the pushing mechanism that ailhead is pierced by from nail hole.Compared with prior art, terminal plate of vertebral body punch of the present invention is when in use, first threaded fusion cage can be implanted between two centrums, then using merging bar that shell is intracavitary by protruding into bone grafting, ailhead is pierced by from nail hole by pushing mechanism and pierces out nail hole on the soleplate of centrum, to guarantee that the opening of perforated area and bone grafting chamber on soleplate fits like a glove, operation is made to reach more preferably effect.
Description
Technical field
The invention belongs to the field of medical instrument technology, are to be related to a kind of terminal plate of vertebral body punch more specifically.
Background technique
In field of spinal surgery, for degeneration slippage, traumatic slippage, segmental instability, discogenic pain with
And acute disc herniation is melted with the illnesss such as spinal cord or nervous lesion, oldness spinal injury companion's spinal cord compression using centrum
It is current one of adopted treatment method extensively that clutch main body, which carries out spinal levels fusion,.Threaded fusion cage main body has branch
The functions such as support, resistance to compression, equal separate loading can preferably restore intervertebral space height and backbone physiological camber, while certainly by implantation
Body or allosome osseous granules can get reliable Bony union, and clinical efficacy has obtained a large amount of clinical research confirmations.
Currently, can often be worn on the soleplate of centrum during surgery to accelerate merging for centrum and threaded fusion cage main body
Pierce several apertures, so as to soleplate can faster in conjunction with the filler in threaded fusion cage bone grafting chamber, thus accelerate centrum with
The fusion of threaded fusion cage main body.But operating method typically now is, to centrum before being implanted into threaded fusion cage main body
Soleplate carry out puncture punching, such mode is difficult to control the shape of perforated area and the opening of fusion device bone grafting chamber is kissed completely
It closes, be easy to cause perforated area excessive or the area of soleplate perforated area is inadequate, optimal surgical effect cannot be reached.
Summary of the invention
The purpose of the present invention is to provide a kind of terminal plate of vertebral body punch, to solve existing in the prior art be difficult to control
The perforated area of soleplate and the area of threaded fusion cage bone grafting chamber fit like a glove, and be easy to cause perforated area excessive or soleplate
The inadequate technical problem of the area of perforated area.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of terminal plate of vertebral body punch is provided, comprising:
It is placed in bar；
Shell, set on the front end of the merging bar, shell wall includes the area Chu Ding equipped with nail hole, and the shell is for being placed in cone
The bone grafting of body fusion device is intracavitary and nail hole is towards terminal plate of vertebral body；
Nail-plate is disposed in the housing, it is corresponding with the area Chu Ding and towards the side in the area Chu Ding be equipped with for from
The ailhead that the corresponding nail hole is pierced by；And
Pushing mechanism is set on the merging bar, for pushing the nail-plate close to the corresponding area Chu Ding so that institute
Ailhead is stated to be pierced by from the nail hole.
Further, the opposite two sidewalls of the shell are respectively equipped with the area Chu Ding；Nail-plate tool there are two and with
Two areas Chu Ding correspond；The pushing mechanism is set between two nail-plates, for pushing and strutting two nails
Plate is so that the ailhead on each nail-plate is pierced by from the corresponding nail hole.
Further, the pushing mechanism includes:
Pull-push piece is arranged in the merging bar, and has the freedom degree in axial sliding along the merging bar；And
Block is strutted, is disposed in the housing, and is connect with the pull-push piece, axis and the pull-push piece glide direction are equipped with
Parallel impact struts the conical surface, and the nail-plate struts the conical surface with the impact and slides against.
Further, the pull-push piece is penetrator ram, and the front end of the penetrator ram is connect with the block that struts, the ejection
The rear end of bar protrudes from the rear end of the merging bar and is equipped with hammering head, described to impact the small end and the penetrator ram for strutting the conical surface
Front end towards identical.
Further, the block that struts includes the first expansion arc for being connected to the penetrator ram front end, first expansion
The front end face of section is that the impact struts the conical surface；The nail-plate is equipped with back protrusion, institute far from the side in the corresponding area Chu Ding
State back protrusion be equipped with the impact strut the conical surface be bonded slide first strut inclined-plane.
Further, described strut is equipped with returning spring between block and the shell, and the returning spring is for pushing institute
It states and struts block to merging bar movement.
It is further, described to strut block further include:
Contraction section is connected to the front end of first expansion arc；And
Second expansion arc, is connected to the front end of the contraction section, and the rear end face of second expansion arc is small end protrusion
Reply struts the conical surface；
The impact struts the conical surface, the outer peripheral surface of the contraction section and the reply and struts and formed described in receiving between the conical surface
Carry on the back the accommodation groove of protrusion, the back protrusion be equipped with the reply strut the conical surface be bonded slide second strut inclined-plane.
Further, the nail-plate is equipped with the elastic portion for abutting with the corresponding area Chu Ding, the elastic portion
For pushing the nail-plate far from the corresponding area Chu Ding so that the ailhead is withdrawn from the nail hole.
Further, the edge of the nail-plate forms the elastic portion close to the corresponding area Chu Ding warped.
Further, each area Chu Ding is equipped with multiple nail hole, the ailhead on each nail-plate with it is right
The nail hole in the area Chu Ding answered corresponds, and the ailhead sliding is arranged in the corresponding nail hole.
The beneficial effect of terminal plate of vertebral body punch provided by the invention is: compared with prior art, centrum of the invention
Soleplate punch when in use, can use implanting instrument and threaded fusion cage is first implanted between two centrums, then utilize merging
It is intracavitary that shell is protruded into bone grafting by the operating walk way of implanting instrument by bar, and keeps nail hole towards terminal plate of vertebral body, passes through the machine of promotion
Structure pushes nail-plate close to the corresponding area Chu Ding, is pierced by ailhead from nail hole, so that aperture is pierced out on the soleplate of centrum, in bone grafting
It is operated repeatedly in chamber, to guarantee that the opening of perforated area and bone grafting chamber on soleplate fits like a glove, reaches operation more preferably
Effect.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the dismantling state stereogram of terminal plate of vertebral body punch provided in an embodiment of the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the cross-sectional view of the enclosure interior of terminal plate of vertebral body punch provided in an embodiment of the present invention；
Fig. 4 is the perspective view for the threaded fusion cage that can be used cooperatively with the terminal plate of vertebral body punch of the embodiment of the present invention；
Fig. 5 is threaded fusion cage in Fig. 4 and can be used cooperatively with the terminal plate of vertebral body punch of the embodiment of the present invention
The assembling stereogram of implanting instrument.
Wherein, each appended drawing reference in figure:
1- is placed in bar；2- shell；21- nail hole；The area 22- Chu Ding；3- nail-plate；31- ailhead；32- carries on the back protrusion；33- elastic portion；
4- pushing mechanism；41- penetrator ram；411- hammers head；42- struts block；The first expansion arc of 421-；422- impact struts the conical surface；
423- contraction section；The second expansion arc of 424-；425- reply struts the conical surface；43- returning spring；5- fusion device main body；51- bone grafting
Chamber；52- filling port；The first connection structure of 53-；6- tool body；The second connection structure of 61-.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments 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.
Also referring to Fig. 1 to Fig. 3, now terminal plate of vertebral body punch provided in an embodiment of the present invention is illustrated.It is a kind of
Terminal plate of vertebral body punch includes merging bar 1, shell 2, nail-plate 3 and pushing mechanism.
Shell 2 is set to the front end of merging bar 1, and shell wall includes the area Chu Ding 22 equipped with nail hole 21, and shell 2 is for being placed in cone
In the bone grafting chamber 51 of fusion device and nail hole 21 is towards terminal plate of vertebral body.
Nail-plate 3 is set in shell 2, it is corresponding with the area Chu Ding 22 and towards the side in the area Chu Ding 22 equipped with for from corresponding nail
The ailhead 31 that hole 21 is pierced by.
Pushing mechanism is set on merging bar 1, for pushing nail-plate 3 close to the corresponding area Chu Ding 22 so that ailhead 31 is from nail hole
21 are pierced by.
Compared with prior art, the terminal plate of vertebral body punch of the embodiment of the present invention when in use, can use implanting instrument
Threaded fusion cage is first implanted between two centrums, is then protruded into shell 2 by the operating walk way of implanting instrument using merging bar 1
It in bone grafting chamber 51, and keeps nail hole 21 towards terminal plate of vertebral body, pushes nail-plate 3 close to the corresponding area Chu Ding 22 by pushing mechanism,
It is pierced by ailhead 31 from nail hole 21, to pierce out aperture on the soleplate of centrum, is operated repeatedly in bone grafting chamber 51, to guarantee
The opening of perforated area and bone grafting chamber 51 on soleplate fits like a glove, and operation is made to reach more preferably effect.
Specifically, merging bar 1 can be long straight bar, be sent in bone grafting chamber 51 for shell 2 to be passed through operating walk way.
Merging 1 rear end of bar can be the grab handle being equipped with for gripping, convenient for operation.Shell 2 can be in rectangular shape, fix
Merging bar 1 front end and it is internal be cavity.The volume of shell 2 is less than the volume of cone fusion device bone grafting chamber 51, so that shell 2
It can be placed in the bone grafting chamber 51 of cone fusion device, and nail hole 21 is towards terminal plate of vertebral body.Partial zones on 2 side shell wall of shell
Domain is uniformly equipped with nail hole 21, forms the area Chu Ding 22；The shell wall for being also possible to 2 side of shell is completely uniform completely by nail hole 21
Covering forms the area Chu Ding 22.Nail-plate 3 is located inside shell 2, and parallel with the area Chu Ding 22, plate face of the nail-plate 3 towards the area Chu Ding 22
It is equipped with ailhead 31.Pushing mechanism is set on merging bar 1, is manipulated convenient for operator, pushing mechanism is by pressing to nail-plate 3
The area Chu Ding 22, so that ailhead 31 passes through nail hole 21 and punctures out aperture on the soleplate of centrum.More specifically, the area Chu Ding 22 is outer
Wall surface is parallel with the merging axis of bar 1, operates convenient for the hand-held merging bar 1 of operator.
In use process, used threaded fusion cage and implanting instrument be can be such as flowering structure.
Referring to Fig. 4, threaded fusion cage can be including fusion device main body 5 and the first connection structure 53.
Fusion device main body 5 is for being implanted between two centrums, equipped with two abutment ends for being respectively used to abut with two centrums
Face and a leading flank, fusion device main body 5 are equipped with the bone grafting chamber 51 through two abutting end faces, the front side of fusion device main body 5
Face is equipped with the filling port 52 being connected to bone grafting chamber 51, and filling port 52 is for making bone file enter bone grafting chamber 51.
First connection structure 53 is set in fusion device main body 5, for being detachably connected with implanting instrument, and makes filling port 52
With implanting instrument to orifice.
Specifically, after fusion device main body 5 is on implantation backbone, the upper and lower ends of fusion device main body 5 are respectively used to and two
Centrum abuts, and the upper and lower end faces of fusion device main body 5 are respectively to abut end face.Bone grafting chamber 51 runs through fusion device master along the vertical direction
Body 5, the front side of bone grafting chamber 51 are opened in the filling for being formed on the leading flank of fusion device main body 5 and terminal plate of vertebral body punch being allowed to enter
Mouth 52, on the whole the fusion device main body 5 equipped with bone grafting chamber 51 can be into U-shaped.Filling port 52 may be sized to permit
Perhaps the shell 2 of terminal plate of vertebral body punch passes through.Terminal plate of vertebral body punch is used for the eyeletting on the soleplate of centrum, in favor of planting
Filler in bone cavity 51 is merged with terminal plate of vertebral body.
It is detachable with implanting instrument that first connection structure 53 uses clamping either threaded connection etc. to be detachably connected form
Connection.After first connection structure 53 is connect with implanting instrument, implanting instrument to the filling port 52 in interface and fusion device main body 5
Connection.
Referring to Fig. 5, implanting instrument can be including tool body 6 and the second connection structure 61.
Tool body 6 is equipped with through both ends and the operating walk way for passing through terminal plate of vertebral body punch, operating walk way exist
Posting port is respectively formed in the both ends of the surface of tool body 6 and to interface.
Second connection structure 61 is set on tool body 6, can for the first connection structure 53 with above-mentioned threaded fusion cage
Dismantling connection simultaneously makes to be connected to interface with the filling port 52 of threaded fusion cage.
More specifically, tool body 6 can be in long straight tubulose, inner cavity formation operation channel, pass through the second connection
Threaded fusion cage is fixed on the front end of tool body 6 by structure 61, in use, the rear end of tool body 6 can be held, is passed through
Threaded fusion cage is implanted between two centrums by the front end of tool body 6.The cross sectional shape of operating walk way can be and filling port 52
Shape is identical or the section of operating walk way is slightly larger than filling port 52, enable more tools by operating walk way, from
Filling port 52 enters bone grafting chamber 51.The cross-sectional sizes of operating walk way can be arranged to allow the shell 2 of terminal plate of vertebral body punch
Pass through with bar 1 etc. is placed in.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
The opposite two sidewalls of shell 2 are respectively equipped with the area Chu Ding 22；The tool of nail-plate 3 is corresponded there are two and with the area Liang Gechuding 22；It pushes
Mechanism is set between two nail-plates 3, for pushing and strutting two nail-plates 3 so that ailhead 31 on each nail-plate 3 is from corresponding
Nail hole 21 is pierced by.Using such setting, it can be punched on the soleplate of upper and lower two vertebral plates simultaneously, improve operating efficiency.
Specifically, it is equipped with nail hole 21 on the shell wall of about 2 two sides of shell, thus on the shell wall of about 2 two sides of shell
It is respectively formed the area Chu Ding 22.Two nail-plates 3 are parallel with the upper and lower area Liang Gechuding 22 opposite respectively, and each nail-plate 3 is towards corresponding
The side in the area Chu Ding 22 be equipped with ailhead 31, enable each nail-plate 3 31 face of ailhead up and down the area Liang Gechuding 22 nail hole
21.Pushing mechanism 4 is located between two nail-plates 3, by strutting two nail-plates 3, so that two nail-plates 3 are respectively close to respectively right
The area Ying Chuding 22, so that ailhead 31 be made to be pierced by.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Pushing mechanism 4 includes pull-push piece and struts block 42.
Pull-push piece is arranged in merging bar 1, and has the freedom degree in axial sliding along merging bar.Block 42 is strutted set on shell
It in body 2, and is connect with pull-push piece, struts the conical surface 422, nail-plate 3 and punching equipped with the axis impact parallel with pull-push piece glide direction
It hits and struts the conical surface 422 and slide against.
Operator can hold merging bar 1, driven by pushing or pulling pull-push piece and strut the movement of block 42, strut block
It struts the conical surface 422 by impact in 42 moving process and pushes nail-plate 3 to the corresponding area Chu Ding 22, so that ailhead 31 is from corresponding
It is pierced by nail hole 21.
Specifically, impact is strutted the conical surface 422 and is clipped in the middle by two nail-plates 3, when pull-push piece driving struts the movement of block 42,
Two nail-plates 3 strut the conical surface 422 along impact and slide respectively to the corresponding area Chu Ding 22, to be softened.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Pull-push piece is penetrator ram 41, and the front end of penetrator ram 41 is connect with block 42 is strutted, after the rear end of penetrator ram 41 protrudes from merging bar 1
Hold and be equipped with hammering head 411, impact struts the small end of the conical surface 422 and the front end of penetrator ram 41 towards identical.
Specifically, merging bar 1 is equipped with the through hole through rear and front end, and pull-push piece sliding is arranged in through hole, is placed in
The rear end of bar 1 is equipped with grab handle, struts the front end that block 42 is fixed on penetrator ram 41, and struts block 42 and be equipped with and penetrator ram 41
Coaxial and small end towards front impact struts the conical surface 422.Two nail-plates 3 will strut block 42 and be clipped in the middle, and respectively with
Impact struts the conical surface 422 and slides against.
In use, operator holds grab handle, the hammering head 411 of 41 rear end of penetrator ram is tapped using tools such as tups, is made
Penetrator ram 41 pushes strut block 42 forward, the impact for strutting 42 front end of block struts the conical surface 422 and struts two nail-plates 3.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Strutting block 42 includes the first expansion arc 421 for being connected to 41 front end of penetrator ram, and the front end face of the first expansion arc 421 is that impact struts
The conical surface 422；Nail-plate 3 is equipped with back protrusion 32 far from the side in the corresponding area Chu Ding 22, and back protrusion 32, which is equipped with, struts the conical surface with impact
The first of 422 fitting slidings struts inclined-plane.
Specifically, the first expansion arc 421 is with the cylinder for being located in 41 front end of penetrator ram, 421 front end of the first expansion arc
Coaxial conical surface is that impact struts the conical surface 422.Nail-plate 3 struts inclined-plane by the first of back protrusion 32, increases and impacts
The contact area of the conical surface 422 is strutted, friction is reduced, increases service life.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
It struts and is equipped with returning spring 43 between block 42 and shell 2, returning spring 43 struts block 42 to the merging movement of bar 1 for pushing.
Specifically, returning spring 43 is located between the shell wall of 2 front side of the front end for strutting block 42 and shell, when operator utilizes
The tools such as tup tap the hammering head 411 of 41 rear end of penetrator ram, so that penetrator ram 41 when ejection struts block 42 forward, struts block 42
Compression reaction spring 43, after penetrator ram 41 does not stress, the elastic force of returning spring 43 reversely pushes and struts block 42, makes to strut block 42
It moves backward.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Strutting block 42 further includes contraction section 423 and the second expansion arc 424.
Contraction section 423 is connected to the front end of the first expansion arc 421.Before second expansion arc 424 is connected to contraction section 423
End, the rear end face of the second expansion arc 424 are that the reply of small end protrusion struts the conical surface 425.
Impact struts the conical surface 422, the outer peripheral surface of contraction section 423 and reply and struts formation receiving back protrusion between the conical surface 425
32 accommodation groove, back protrusion 32 be equipped with reply strut the conical surface 425 be bonded slide second strut inclined-plane.
Specifically, penetrator ram 41, the first expansion arc 421, contraction section 423 and the second expansion arc 424, it is successively same from back to front
The diameter of axis setting, the first expansion arc 421 and the second expansion arc 424 is greater than the diameter of contraction section 423, so that the first expansion arc
The impact that the end face of 421 front ends forms cone struts the conical surface 422, and the end face of 424 rear end of the second expansion arc forms cone
Reply struts the conical surface 425.Two nail-plates 3 will strut block 42 and be clipped in the middle, and be respectively equipped with back protrusion 32.Carry on the back cutting for protrusion 32
Face is trapezoidal, and the side where two trapezoidal waists is respectively first to strut inclined-plane and second and strut inclined-plane.
It is reversely pushed when returning spring 43 will strut block 42, makes after strutting the reset of block 42, strut block 42 and continue to move backward,
The reply of second expansion arc 424, which struts the conical surface 425, to strut inclined-plane cooperation with second, again by nail-plate 3 to the corresponding area Chu Ding
22 push, so that ailhead 31 improves efficiency from being pierced by from nail hole 21 again.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Nail-plate 3 is equipped with the elastic portion 33 for abutting with the corresponding area Chu Ding 22, and elastic portion 33 is for pushing nail-plate 3 far from corresponding
The area Chu Ding 22 is so that ailhead 31 is withdrawn from nail hole 21.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
The edge of nail-plate 3 forms elastic portion 33 close to corresponding 22 warped of the area Chu Ding.
Specifically, nail-plate 3 uses metal material, and the leading edge and back edge of nail-plate 3 are bent to the corresponding area Chu Ding 22 respectively
It sticks up, forms the elastic portion 33 with certain elasticity.When the corresponding area Chu Ding 22 close under promotion of the nail-plate 3 in pushing mechanism 4 moves
When dynamic, the elastic portion 33 of warped is squeezed and deformed by nail-plate 3 and the area Chu Ding 22, after the distracting force of pushing mechanism 4 disappears, elasticity
Portion 33 restores nail-plate 3 pushing away the area Chu Ding 22, withdraws ailhead 31 from nail hole 21.
Referring to Figure 2 together and Fig. 3, as a kind of specific embodiment of terminal plate of vertebral body punch provided by the invention,
Each area Chu Ding 22 is equipped with multiple nail hole 21, and the ailhead 31 on each nail-plate 3 and the nail hole 21 1 in the corresponding area Chu Ding 22 are a pair of
It answers, what ailhead 31 slided is arranged in corresponding nail hole 21.What ailhead 31 slided is arranged in corresponding nail hole 21, can be to nail
Plate 3 is oriented to.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of terminal plate of vertebral body punch characterized by comprising
It is placed in bar；
Shell, set on the front end of the merging bar, shell wall includes the area Chu Ding equipped with nail hole, and the shell melts for being placed in cone
The bone grafting of clutch is intracavitary and nail hole is towards terminal plate of vertebral body；
Nail-plate is disposed in the housing, corresponding with the area Chu Ding and be equipped with towards the side in the area Chu Ding for from correspondence
The ailhead that is pierced by of the nail hole；And
Pushing mechanism is set on the merging bar, for pushing the nail-plate close to the corresponding area Chu Ding so that the nail
Head is pierced by from the nail hole.
2. terminal plate of vertebral body punch as described in claim 1, which is characterized in that the opposite two sidewalls of the shell are respectively equipped with
The area Chu Ding；The nail-plate tool is corresponded there are two and with two areas Chu Ding；The pushing mechanism is set to two institutes
It states between nail-plate, for pushing and strutting two nail-plates so that the ailhead on each nail-plate is from corresponding described
Nail hole is pierced by.
3. terminal plate of vertebral body punch as claimed in claim 2, which is characterized in that the pushing mechanism includes:
Pull-push piece is arranged in the merging bar, and has the freedom degree in axial sliding along the merging bar；And
Block is strutted, is disposed in the housing, and is connect with the pull-push piece, it is parallel with the pull-push piece glide direction to be equipped with axis
Impact strut the conical surface, the nail-plate struts the conical surface with the impact and slides against.
4. terminal plate of vertebral body punch as claimed in claim 3, which is characterized in that the pull-push piece is penetrator ram, the ejection
The front end of bar is connect with the block that struts, and the rear end of the penetrator ram protrudes from the rear end of the merging bar and is equipped with hammering head,
Described impact struts the small end of the conical surface and the front end of the penetrator ram towards identical.
5. terminal plate of vertebral body punch as claimed in claim 4, which is characterized in that the block that struts includes being connected to the ejection
First expansion arc of bar front end, the front end face of first expansion arc are that the impact struts the conical surface；The nail-plate is far from corresponding
The area Chu Ding side be equipped with back protrusion, it is described back protrusion be equipped with and it is described impact struts the conical surface be bonded sliding first support
Open inclined-plane.
6. terminal plate of vertebral body punch as claimed in claim 5, which is characterized in that described strut is equipped between block and the shell
Returning spring, the returning spring is for pushing the block that struts to merging bar movement.
7. terminal plate of vertebral body punch as claimed in claim 6, which is characterized in that described to strut block further include:
Contraction section is connected to the front end of first expansion arc；And
Second expansion arc, is connected to the front end of the contraction section, and the rear end face of second expansion arc is the reply of small end protrusion
Strut the conical surface；
It is described impact strut the conical surface, the contraction section outer peripheral surface and it is described reply strut between the conical surface formed accommodate it is described back it is convex
The accommodation groove in portion, the back protrusion be equipped with the reply strut the conical surface be bonded slide second strut inclined-plane.
8. terminal plate of vertebral body punch as described in any one of claim 1 to 7, which is characterized in that the nail-plate is equipped with and is used for
The elastic portion abutted with the corresponding area Chu Ding, the elastic portion is for pushing the nail-plate far from the corresponding area Chu Ding
So that the ailhead is withdrawn from the nail hole.
9. terminal plate of vertebral body punch as claimed in claim 8, which is characterized in that the edge of the nail-plate is close to corresponding described
The area Chu Ding warped forms the elastic portion.
10. terminal plate of vertebral body punch as described in any one of claim 1 to 7, which is characterized in that each area Chu Ding is equipped with
Multiple nail hole, the ailhead on each nail-plate are corresponded with the nail hole in the corresponding area Chu Ding, institute
State being arranged in the corresponding nail hole for ailhead sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603239.0A CN110251195A (en) | 2019-07-05 | 2019-07-05 | Terminal plate of vertebral body punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603239.0A CN110251195A (en) | 2019-07-05 | 2019-07-05 | Terminal plate of vertebral body punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110251195A true CN110251195A (en) | 2019-09-20 |
Family
ID=67924599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603239.0A Pending CN110251195A (en) | 2019-07-05 | 2019-07-05 | Terminal plate of vertebral body punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110251195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4218623A4 (en) * | 2020-09-23 | 2024-10-23 | National Univ Corporation Tokai National Higher Education And Research System | End-plate perforation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0880950A1 (en) * | 1997-05-30 | 1998-12-02 | Biomat | Intervertebral cervical cage |
| US20020143401A1 (en) * | 2001-03-27 | 2002-10-03 | Michelson Gary K. | Radially expanding interbody spinal fusion implants, instrumentation, and methods of insertion |
| CN103356310A (en) * | 2012-03-28 | 2013-10-23 | 北京爱康宜诚医疗器材股份有限公司 | Adjustable interbody fusion cage |
| CN107334566A (en) * | 2017-08-09 | 2017-11-10 | 丁金勇 | Invasive lumbar fusion device and the accessory part for expanding the fusion device |
| CN108478311A (en) * | 2018-04-24 | 2018-09-04 | 黄振强 | A kind of Invasive lumbar fusion device |
| CN211270979U (en) * | 2019-07-05 | 2020-08-18 | 河北医科大学第三医院 | Vertebral endplate puncher |
-
2019
- 2019-07-05 CN CN201910603239.0A patent/CN110251195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0880950A1 (en) * | 1997-05-30 | 1998-12-02 | Biomat | Intervertebral cervical cage |
| US20020143401A1 (en) * | 2001-03-27 | 2002-10-03 | Michelson Gary K. | Radially expanding interbody spinal fusion implants, instrumentation, and methods of insertion |
| CN103356310A (en) * | 2012-03-28 | 2013-10-23 | 北京爱康宜诚医疗器材股份有限公司 | Adjustable interbody fusion cage |
| CN107334566A (en) * | 2017-08-09 | 2017-11-10 | 丁金勇 | Invasive lumbar fusion device and the accessory part for expanding the fusion device |
| CN108478311A (en) * | 2018-04-24 | 2018-09-04 | 黄振强 | A kind of Invasive lumbar fusion device |
| CN211270979U (en) * | 2019-07-05 | 2020-08-18 | 河北医科大学第三医院 | Vertebral endplate puncher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4218623A4 (en) * | 2020-09-23 | 2024-10-23 | National Univ Corporation Tokai National Higher Education And Research System | End-plate perforation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4741336A (en) | Shaped staples and slotted receivers (case VII) | |
| EP0169044B1 (en) | "w" shaped staples and slotted receivers | |
| EP0569049B1 (en) | A one-piece surgical staple | |
| US6656107B1 (en) | Brachytherapy seed applicators | |
| CA1157725A (en) | Disposable clip applier | |
| US8262660B2 (en) | Serratome vertebral cortical endplate cutter | |
| US5456400A (en) | Apparatus and clip for fastening body tissue | |
| US4591086A (en) | Surgical stapling instrument | |
| CN112006739B (en) | Staple cartridge assembly, end effector and surgical instrument | |
| US4406392A (en) | Surgical stapling instrument | |
| MXPA06009866A (en) | Staple cartridges for forming staples having differing formed staple heights. | |
| CN208851552U (en) | Nail bin groupware and the Medical stapler for using the nail bin groupware | |
| CN110381848A (en) | Clamp assembly and biopsy sample for operation tool collect component | |
| CN110251195A (en) | Terminal plate of vertebral body punch | |
| GB2025236A (en) | Suture-forming tool | |
| US4122989A (en) | Instrument for suturing with metal staples | |
| EP0500082B1 (en) | Piercing apparatus | |
| KR101019964B1 (en) | Troca | |
| CN208838053U (en) | Nail bin groupware and the Medical stapler for using the nail bin groupware | |
| CN211270979U (en) | Vertebral endplate puncher | |
| CN109620311A (en) | Biopsy forceps and its manufacturing method with integral type binding clip | |
| CN109984792B (en) | Nail bin assembly, end effector and surgical instrument | |
| CN106562813B (en) | Once integral cutting intervertebral disc tissue and intervertebral space forming cutter | |
| US20040087959A1 (en) | Device for withdrawing flakes or shavings from a donor bone by scraping | |
| CN115486893B (en) | Clip applier shaft assembly and clip applier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |