CN106308983B - Fusion device, operator and vertebral fusion device - Google Patents
Fusion device, operator and vertebral fusion device Download PDFInfo
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- CN106308983B CN106308983B CN201610794803.8A CN201610794803A CN106308983B CN 106308983 B CN106308983 B CN 106308983B CN 201610794803 A CN201610794803 A CN 201610794803A CN 106308983 B CN106308983 B CN 106308983B
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- follower head
- fusion device
- elastic piece
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- 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
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Physical Education & Sports Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of fusion device, operator and vertebral fusion devices, the fusion device includes front end, follower head, elastic piece and multiple movable blocks, the front end, multiple movable blocks and follower head are rotatablely connected successively, it is equipped on the follower head and movable block and the matched mounting hole of elastic piece, the elastic piece is threaded through in the mounting hole, and elastic piece is connect close to one end of front end with the front end, the elastic piece is bent arc-shaped under natural conditions.Front end, multiple movable blocks and follower head one turn round successively under the action of the bending force of elastic piece, finally spiral on centrum, that is the front end of fusion device enters centrum from side, finally it is spiraled into the other side of centrum, the both sides of centrum are made all to be supported, enough supporting surfaces are provided for by a fusion device, ensure interpyramidal stress balance.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of fusion device, operator and vertebral fusion device.
Background technology
In daily life, cause the case that centrum damages to happen occasionally due to tumour, fracture, infection etc., controlling
It is one fusion device of implantation between the centrum of damage by the way of at present when treating these patients, so that bone tissue generation is creeped and replace
In generation, since the structure of traditional fusion device limits, can not pass through a traditional fusion during surgery to repair the centrum of damage
Device is provided with enough supporting surface and ensures interpyramidal stress balance, and when operation is usually from the both sides of centrum implantation two pieces tradition
Fusion device, which increase the numbers of operation.
Invention content
Based on this, it is necessary in view of the drawbacks of the prior art, a kind of fusion device, operator and vertebral fusion device are provided,
Enough supporting surfaces can be provided and ensure interpyramidal stress balance.
Its technical solution is as follows：
A kind of fusion device, including front end, follower head, elastic piece and multiple movable blocks, the front end, multiple movable blocks
And follower head is rotatablely connected successively, is equipped on the follower head and movable block and the matched mounting hole of elastic piece, the elasticity
Piece is threaded through in the mounting hole, and elastic piece is connect close to one end of front end with the front end, and the elastic piece is natural
It is bent arc-shaped under state, can be stretched after stress.
Its further technical solution is as follows：
The fusion device further includes more axis pins, is equipped on the front end, movable block and follower head and the axis pin
Matched axis hole, the front end, multiple movable blocks and follower head pass sequentially through the axis pin and shaft hole matching is rotatablely connected, institute
It states side opposite with its axis hole on front end and is equipped with slot, the elastic piece stretches into the slot close to one end of front end
It is interior, and jack is equipped in elastic piece and socket sidewalls, one end of the elastic piece is limited in institute by bolt and jack cooperation
It states in slot, the mounting hole on the movable block and follower head is arranged at and its respectively opposite side of axis hole, and the peace
Dress hole is located at the same side with slot.
The first end of the movable block is equipped with the first groove, and on the side wall far from the mounting hole of first groove
Equipped with the first resigning mouthful being connected to the first groove, the second end of the movable block is equipped with the first convex block, and the of the movable block
One end is oppositely arranged with second end, and the mounting hole is through to second end by the first end of movable block, and first groove is opposite
Two side and first convex block on be equipped with the axis hole, two adjacent movable blocks, wherein the first groove of a movable block
It is nested with the first convex block of another movable block and a wherein axis pin is threaded through the first groove and the first convex block of nested arrangements
Axis hole in.
One end that the front end is equipped with slot is equipped with the second groove or the second convex block, and one end of the follower head is set
Have third convex block or a third groove, the other end of follower head is equipped with threaded hole, the second groove two side of the front end and
It is all provided on the third convex block of the follower head or third groove two side of the second convex block of the front end and follower head
Axis hole is stated, the second groove or the second convex block of front end are matched with the first convex block of movable block adjacent thereto or the first groove nesting
Conjunction and a wherein axis pin are threaded through the axis hole of the second groove and the first convex block or the second convex block and the first groove of nested arrangements
It is interior, the third convex block or third groove of follower head be nested with the first groove of movable block adjacent thereto or the first convex block and
A wherein axis pin is threaded through in the third convex block and the first groove or the axis hole of third groove and the first convex block of nested arrangements, and
The side wall of second groove far from the mounting hole is equipped with the second resigning mouthful being connected to the second groove or the third
Side wall of the groove far from the mounting hole is equipped with the third resigning mouthful being connected to third groove
A kind of operator includes handle, the first transmission shaft, the second transmission for driving the fusion device, the operator
Axis, driving tube, drive rod and orthopedic pipe, the second driving shaft are located in handle, and institute is stretched into one end of first transmission shaft
It states in handle and is connect with second driving shaft, described orthopedic pipe one end is connect with the one end of the handle far from the first transmission shaft,
The driving tube is threaded through in the orthopedic pipe and second driving shaft, and driving tube is threadedly coupled with second driving shaft, the drive
Lever is threaded through in the driving tube and the first transmission shaft, and one end of drive rod is threadedly coupled with first transmission shaft, is driven
The other end of lever stretches out the driving tube for being connect with the follower head.
The operator further includes the slip pipe and casing being arranged between handle and orthopedic pipe, and the slip pipe is set in institute
It states outside driving tube and one end of slip pipe is connect with the handle, described sleeve pipe is set in outside the slip pipe and is slided with the slip pipe
Cooperation, and described sleeve pipe is equipped with positioning component, the slip pipe is equipped with and matched first locating slot of the positioning component, the
Two locating slots, the orthopedic pipe are connect with the one end of described sleeve pipe far from handle.
The operator further includes pointer nut, and the pointer nut is arranged in handle, and pointer nut with it is described
First transmission shaft is threadedly coupled, and offers observation window corresponding with pointer nut travel range on the handle, and on handle
It is equipped with scale with observation window corresponding position.
The operator further includes closure nut, first transmission shaft include sequentially connected cooperation section, limit section,
Rotational segment and twist section, the cooperation section outer surface are equipped with the external screw thread coordinated with the pointer nut, and cooperation section inner surface is set
There is the internal thread coordinated with the drive rod, and the one end of the cooperation section far from limit section is connect with the second driving shaft,
The closure nut is set in outside the rotational segment and the end face of closure nut is connected to described limit section one end, closure nut
It is detachably connected with the handle.
The pointer nut is square nut, be equipped in the handle with the matched rectangular cavity of the square nut, it is described
Closure nut includes the extending portion being connected and abutting part, and the outer diameter of the abutting part is more than the outer diameter of the extending portion, described
Extending portion is located in the handle and is connect with handle threads, and the end face that the abutting part is connect with extending portion is connected to the hand
On the end face of handle, the through-hole coordinated with the rotational segment is offered on the closure nut.
A kind of vertebral fusion device, including the fusion device and the operator, the follower head of the fusion device and institute
The drive rod for stating operator is detachably connected.
The advantages of below to preceding solution or principle illustrate：
Above-mentioned fusion device and vertebral fusion device can be drawn since elastic piece is bent arc-shaped under natural conditions after stress
Directly, the follower head of fusion device is clamped or is connected, while its elastic piece being stretched made front end, multiple movable blocks and follower head
It is drawn as straight line, follower head is then slowly pushed, the front end of fusion device is made to be introduced into centrum, simultaneously because front end,
Multiple movable blocks and follower head are rotation connection, front end, multiple work under the action of the bending force of elastic piece each other
Motion block and follower head one turn round successively, finally spiral on centrum, that is to say, that and the front end of fusion device enters centrum from side,
It is finally spiraled into the other side of centrum, the both sides of centrum is made all to be supported, is provided for enough by a fusion device
Supporting surface, ensure interpyramidal stress balance.
Drive rod is moved to outside orthopedic pipe by aforesaid operations device in use, rotating in the forward direction the first transmission shaft, and first passes
Moving axis rotation drives the second driving shaft to turn, and makes driving tube and drive rod synchronizing moving, then by drive rod and the rear end
Head connection, reversely rotates the first transmission shaft, and driving tube is made to be moved with drive rod synchronous backward, and the fusion device is pulled in described rectify
In shape pipe, due to the limitation of orthopedic pipe, the elastic piece is straightened, while the driving tube is connected on the elastic piece, uses
In pushing elastic piece to move outward, first transmission shaft is rotated in the forward direction again, the fusion device is slowly released described orthopedic
Pipe, fusion device slowly enter human body, and the elastic piece for stretching out orthopedic pipe restores to the original state under the action of elastic force and bends, and makes institute
It states fusion device and is gradually curved and be coiled in outside centrum, drive rod is detached with fusion device finally, the drive rod is exited.The operation
Device is easy to operate, and easily the fusion device can be implanted into human body.
Description of the drawings
Fig. 1 is the structural schematic diagram one of fusion device described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram two of fusion device described in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of movable block described in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of front end described in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of follower head described in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of elastic piece described in the embodiment of the present invention；
Fig. 7 is the schematic diagram of operator described in the embodiment of the present invention；
Fig. 8 is the diagrammatic cross-section of the A-A along Fig. 7；
Fig. 9 is the structural schematic diagram of the first transmission shaft described in the embodiment of the present invention；
Figure 10 is the structural schematic diagram of handle described in the embodiment of the present invention；
Figure 11 is the structural schematic diagram of orthopedic pipe described in the embodiment of the present invention；
Figure 12 is the structural schematic diagram of slip pipe described in the embodiment of the present invention；
Figure 13 is the close-up schematic view of Fig. 8；
Figure 14 is the schematic diagram that fusion device is pulled in orthopedic pipe by operator described in the embodiment of the present invention；
Figure 15 is the diagrammatic cross-section of the B-B along Figure 14；
Figure 16 is the schematic diagram that fusion device is released orthopedic pipe by operator described in the embodiment of the present invention.
Reference sign：
10, front end, 110, slot, 120, axis hole, the 130, second convex block, 140, jack, 20, follower head, 210, installation
Hole, 220, axis hole, 230, third groove, 232, third resigning mouthful, 240, threaded hole, 30, elastic piece, 310, jack, 40, activity
Block, 410, mounting hole, 420, axis hole, the 430, first groove, the 432, first resigning mouthful, the 440, first convex block, 50, axis pin, 60, insert
Pin, 100, handle, 101, pointer nut, 102, closure nut, 1022, extending portion, 1024, abutting part, 103, observation window, 200,
First transmission shaft, 201, cooperation section, 202, limit section, 203, rotational segment, 204, twist section, 300, second driving shaft, 400, drive
Dynamic pipe, 500, drive rod, 600, orthopedic pipe, 601, cylindrical section, 602, square tube section, 700, slip pipe, the 701, first locating slot, 702,
Second locating slot, 703, the limit shaft shoulder, 800, casing, 900, positioning component, 901, positioning column, 902, spring, 903, card bead.
Specific implementation mode
As shown in figures 1 to 6, a kind of fusion device, including front end 10, follower head 20, elastic piece 30 and multiple movable blocks 40,
The front end 10, multiple movable blocks 40 and follower head 20 are rotatablely connected successively, and the follower head 20 is equipped with and elastic piece 30
Matched mounting hole 210 is equipped on movable block 40 and is threaded through with 30 matched mounting hole 410 of elastic piece, the elastic piece 30
In the mounting hole, and elastic piece 30 is connect close to one end of front end 10 with the front end 10, and the elastic piece 30 is natural
It is bent arc-shaped under state, can be stretched after stress.Elastic piece 30 described in the present embodiment is spring leaf, and can also be other has
Elastic and bending camber under natural conditions strip or laminated structure are bent in the case where not stressing such as the institute of Fig. 1,2,6
The arc shown.Traditional fusion device is generally rectangular, and the intervertebral of human body is oval, and a traditional fusion device can not be protected
Centrum both sides stress balance is demonstrate,proved, the fusion device described in the present embodiment makes the front end of rotation connection under the action of elastic piece 30
10, multiple movable blocks 40 and follower head 20 are also bent camber, can guarantee centrum both sides stress equalization around centrum setting.
The fusion device, elastic piece 30 are bent arc-shaped under natural conditions, can stretch, will press from both sides end 20 thereafter after stress
It holds or connects, while its elastic piece 30, which is stretched, makes front end 10, multiple movable blocks 40 and follower head 20 be drawn as one directly
Then line slowly pushes follower head 20, so that the front end 10 of fusion device is introduced into centrum, simultaneously because front end 10, multiple work
Motion block 40 and follower head 20 are each other rotation connections, the front end 10, the multiple under the action of bending force of elastic piece 30
Movable block 40 and follower head 20 1 turn round successively, finally spiral on centrum, that is to say, that the front end 10 of fusion device is from side
Into centrum, it is finally spiraled into the other side of centrum, the both sides of centrum is made all to be supported, passes through a fusion device energy
Enough supporting surfaces are provided, ensure interpyramidal stress balance.
As shown in Figure 1, 2, the fusion device further includes more axis pins 50, as shown in figure 4, the front end 10 be equipped with
50 matched axis hole 120 of the axis pin, as shown in figure 3, movable block 40 be equipped with 50 matched axis hole 420 of the axis pin, such as
Shown in Fig. 5, follower head 20 be equipped with 50 matched axis hole 220 of the axis pin, the front end 10, multiple movable blocks 40 and after
End 20 passes sequentially through the axis pin 50 and is rotatablely connected with shaft hole matching, and the side opposite with its axis hole is set on the front end 10
There are slot 110, the elastic piece 30 to be stretched into the slot 110 close to one end of front end 10, and elastic piece 30 is equipped with and inserts
Hole 310, jack 140 is equipped on 110 side wall of slot, and one end of the elastic piece 30 passes through bolt 60 and jack 310 and cooperation
It is limited in the slot 110, the mounting hole on the movable block 40 and follower head 20 is arranged at that respectively axis hole is opposite with its
Side, and the mounting hole and slot 110 are located at the same side, i.e., under the action of elastic piece 30, front end 10 with its phase
Between adjacent movable block 40, between movable block 40 and movable block 40, follower head 20 passes through between movable block 40 adjacent thereto
Axis pin 50 is rotated with shaft hole matching.The rectangular in cross-section of elastic piece 30 described in the present embodiment, the mounting hole 210, mounting hole 210
And slot 110 be with 30 matched rectangle of elastic piece, 5 movable blocks 40 are provided in the present embodiment, according to demand,
Either the elastic pieces 30 such as 6 can also use the modes such as bolt or riveting to be connect with the front end 10 for setting 4,
The front end 10 between movable block 40 adjacent thereto, between movable block 40 and movable block 40, follower head 20 with its phase
Loose-leaf can also be used between adjacent movable block 40 or other structures realize rotation connection.
As shown in Figs. 1-3, the first end of movable block 40 described in the present embodiment is equipped with the first groove 430, and described first recessed
Side wall of the slot 430 far from the mounting hole is equipped with the first resigning mouthful 432 being connected to the first groove 430, the movable block 40
Second end be equipped with the first convex block 440, first end and the second end of the movable block 40 be oppositely arranged, the mounting hole 410 by
The first end of movable block 40 is through to second end, on the opposite two side of first groove 430 and first convex block 440
Equipped with the axis hole 420, two adjacent movable blocks 40, wherein the first groove 430 and another movable block 40 of a movable block 40
First convex block 440 is nested and a wherein axis pin 50 is threaded through the first groove 430 and the first convex block 440 of nested arrangements
In axis hole 420.Adjacent movable block 40 is nested by the first groove 430 and the first convex block 440, convenient for will merge when assembly
Device pulls into straight line, convenient in implantation human body, by the way that the first resigning mouthful 432 is arranged, being convenient for the first convex block 440 in the work of elastic piece 30
It will not be interfered with 430 side wall of the first groove coordinated with it around the rotation of axis pin 50 under.
As shown in Figs. 1-5, front end 10 described in the present embodiment is equipped with one end of slot 110 equipped with the second convex block 130, institute
The one end for stating follower head 20 is equipped with third groove 230, i.e. front end 10 passes through the second convex block 130 and the movable block 40 at most beginning
First groove 430 is nested, and follower head 20 is embedding by third groove 230 and the first convex block 440 of the movable block 40 of least significant end
Second convex block 130 of set cooperation, the front end 10 is equipped with the axis hole 120,230 two side of third groove of follower head 20
On be equipped with the axis hole 220, wherein an axis pin 50 be threaded through simultaneously the axis hole 120 of corresponding matching in axis hole 420, wherein one
Axis pin 50 is threaded through the axis hole 220 of corresponding matching in axis hole 420 simultaneously, and the third groove 230 is far from the mounting hole
Side wall is equipped with the third resigning mouthful 232 being connected to third groove 230.According to actual demand, can also be set on front end 10
There is the first convex block 440 that the movable block 40 of the second groove and least significant end is arranged in one end of slot 110 to be nested, in follower head 20
First groove 430 of movable block 40 at one end setting third convex block and most beginning be nested, the setting of the axis hole 120 is existed
On second groove two side, the axis hole 220 is arranged on the third convex block, and second groove is far from described
The side wall of mounting hole is equipped with the second resigning mouthful being connected to the second groove.Front end 10 is nested with movable block 40 adjacent thereto
Cooperation, follower head 20 are nested with movable block 40 adjacent thereto.The separate movable block 40 of follower head 20 described in the present embodiment
One end be equipped with threaded hole 240, by the threaded hole 240, convenient for being connected through a screw thread with driving instrument, by the fusion device
It is implanted into human body, according to actual demand, horn-like fixture block can also be set on follower head 20, using with horn mouth chuck
Driving instrument clamps fixture block, and card slot is either arranged on follower head 20, and either screw rod driving instrument passes through card column or threaded hole
It is connect with follower head 20.End face of the front end 10 far from movable block 40 described in the present embodiment is arc surface, and front end 10 is made to be implanted into
Guiding role is played when human body, while avoiding loss basivertebral nerve.
As shown in Figure 7,8, a kind of operator includes handle 100, first for driving above-mentioned fusion device, the operator
Transmission shaft 200, second driving shaft 300, driving tube 400, drive rod 500 and orthopedic pipe 600, the second driving shaft 300 are located at
In handle 100, one end of first transmission shaft 200 is stretched into the handle 100 and is connect with second driving shaft 300, described
Orthopedic pipe one end is connect with the one end of the handle 100 far from the first transmission shaft 200, and the driving tube 400 is threaded through described rectify
In shape pipe 600 and second driving shaft 300, and driving tube 400 is threadedly coupled with second driving shaft 300, and the drive rod 500 is worn
In the driving tube 400 and the first transmission shaft 200, and one end of drive rod 500 connects with 200 screw thread of the first transmission shaft
It connects, the other end of drive rod 500 stretches out the driving tube 400 for being connect with the follower head 20.
As illustrated in figures 14-16, in use, rotating in the forward direction the first transmission shaft 200, drive rod 500 is moved to orthopedic pipe 600
Outside, and the rotation of the first transmission shaft 200 drives 300 turns of the second driving shaft, makes driving tube 400 and 500 synchronizing moving of drive rod,
Then drive rod 500 is connect with the follower head 20, drive rod 500 described in the present embodiment connects with 20 screw thread of the follower head
It connects, reversely rotates the first transmission shaft 200, so that driving tube 400 is moved with 500 synchronous backward of drive rod, the fusion device is pulled in
In the orthopedic pipe 600, due to the limitation of orthopedic pipe 600, the elastic piece 30 is straightened, while the driving tube 400 abuts
On the elastic piece 30, for pushing elastic piece 30 to move outward, the endoporus of orthopedic pipe 600 described in the present embodiment is rectangular
Hole rotates in the forward direction first transmission shaft 200 again, the fusion device is slowly released the orthopedic pipe 600, fusion device is slowly
Into human body, the elastic piece 30 for stretching out orthopedic pipe 600 restores to the original state under the action of elastic force and bends, and makes the fusion device
It is gradually curved and is coiled in outside centrum, finally rotate whole operation device, drive rod 500 is made to be detached with the follower head 20, it will be described
Drive rod 500 exits.The driving tube 400 is close to one end of elastic piece 30 and drive rod 500 close to one end of follower head 20
Spacing size, the distance that the follower head 20 is stretched out when being straightened according to the elastic piece 30 are adjusted, it is ensured that driving tube 400 can support
It is connected on the elastic piece 30, the operator is easy to operate, and easily the fusion device can be implanted into human body.
As shown in Fig. 7,8 and 11-16, operator described in the present embodiment further include setting handle 100 and orthopedic pipe 600 it
Between slip pipe 700 and casing 800, the slip pipe 700 be set in the driving tube 400 outer and one end of slip pipe 700 and the hand
Handle 100 connects, and described sleeve pipe 800 is set in outside the slip pipe 700 and is slidably matched with the slip pipe 700, and described sleeve pipe 800
It is equipped with positioning component 900, the slip pipe 700 is equipped with and 900 matched first locating slot 701, second of the positioning component
Locating slot 702, the orthopedic pipe 600 are connect with the one end of described sleeve pipe 800 far from handle 100.In use, first by casing 800
And orthopedic pipe 600 is moved to outermost end, i.e., positioning component 900 is moved to the second locating slot 702 by the first locating slot 701, joins
According to Figure 15,16, the first transmission shaft 200 is then rotated forward, drive rod 500 and driving tube 400 are moved into outermost end, then will fusion
The follower head 20 of device screws on the top screw thread of drive rod 500, then reversely rotate the first transmission shaft 200 drive rod 500 and
Driving tube 400 is moved to inner terminal, as shown in figure 15, the fusion device is pulled in orthopedic pipe 600, rotates in the forward direction first again
Transmission shaft 200 is slowly released fusion device, and effect is as shown in figure 16.As shown in figure 11, orthopedic pipe 600 described in the present embodiment wraps
The cylindrical section 601 being connected and square tube section 602 are included, the cylindrical section 601 is connect with described sleeve pipe 800, cylindrical section 601 and square tube
The square hole being arranged in section 602 is matched with the shape of the fusion device, since orthopedic pipe 600 is bigger, and its square tube section 602
Corner is sharp, and if direct rotary operator exits fusion device, the rotation of orthopedic pipe 600 can very likely be damaged to basivertebral nerve,
So be slidably matched with slip pipe by casing 800, orthopedic pipe 600 is moved to ability rotary operator after inner terminal, makes drive rod
500 rotations, detach with the follower head, exit fusion device, and human body will not be encountered by exiting the orthopedic pipe of process, avoid damage to centrum god
Through.With reference to shown in Fig. 7,8.According to actual demand, it is also not provided with casing 800 and slip pipe 700, directly by orthopedic pipe 600 and handle
100 connections, while to be damaged to basivertebral nerve when avoiding exiting, orthopedic pipe 600 can be arranged to cylindrical tube, and in its end
Do round and smooth processing etc..
As shown in Fig. 8,12,13, the slip pipe 700 is equipped with the limit shaft shoulder 703, institute close to one end of the second locating slot 702
It states casing 800 and is less than the other end close to one end internal diameter of handle 100, is i.e. casing 800 is equipped with the internal diameter of the pipeline section of positioning component 900
Less than the internal diameter for the pipeline section that casing 800 is connect with orthopedic pipe 600, for such casing 800 when being slided on slip pipe 700, internal diameter is small
Pipeline section can withstand on the limit shaft shoulder 703, avoid sliding excessive, the positioning component 900 includes positioning column 901 and sets
The spring 902 in positioning column 901 is set, 902 outer end of the spring is connected with card bead 903, and the positioning column 901 is embedded described
In casing 800, the card bead 903 coordinates with first locating slot 701, the second locating slot 702, plays and is carried out to casing 800
The effect of positioning, sliding sleeve 800 make spring 902 compress, to make card bead 903 skid off the positioning of the first locating slot 701 or second
Slot 702.According to actual demand, the card slot in radially direction can also be directly set on casing 800, bullet is set in card slot
Spring and card bead 903, can also play the effect positioned to casing 800, and in the present embodiment, two are equipped in described sleeve pipe 800
A opposite positioning component 900 makes about 800 both sides of casing that can be limited.
As shown in Fig. 7,8,10, the operator further includes pointer nut 101, and the pointer nut 101 is arranged in handle
In 100, and pointer nut 101 is threadedly coupled with first transmission shaft 200, is offered on the handle 100 and pointer nut
The corresponding observation window 103 of 101 stroke ranges, and on handle 100 scale is equipped with 103 corresponding position of observation window.First transmission shaft
200 outer surfaces are equipped with the matched external screw thread of 101 internal thread of pointer nut, opposite handle in 200 rotary course of the first transmission shaft
100 positions are constant, and pointer nut 101 is moved along the first transmission shaft 200 in handle 100 with the rotation of the first transmission shaft 200,
The position of the movement of pointer nut 101 can be clearly observed by the observation window 103 on handle 100, to which corresponding display is merged
Device enters the depth of human body.Pointer nut 101 described in the present embodiment is square nut, is equipped with and the side in the handle 100
The matched rectangular cavity of shape nut, pointer nut 101 are limited in rectangular cavity, are not rotated with the rotation of the first transmission shaft 200,
According to actual demand, pointer nut 101 can also be triangle or other shapes, is equipped in corresponding handle 100 matching
Triangular chamber etc..
As shown in Fig. 7,8,9, the operator further includes closure nut 102, and first transmission shaft 200 includes connecting successively
Cooperation section 201, limit section 202, rotational segment 203 and twist section 204,201 outer surface of cooperation section connect is equipped with and the finger
The external screw thread that needle nut 101 coordinates, cooperation 201 inner surface of section are equipped with the internal thread that coordinates with the drive rod 500, and described match
It closes the one end of section 201 far from limit section 202 to connect with the second driving shaft 300, the closure nut 102 is set in described turn
Outside dynamic section 203 and the end face of closure nut 102 is connected to described 202 one end of limit section, closure nut 102 and the handle
100 are detachably connected.When assembly, first the cooperation section 201 of the first transmission shaft 200 and limit section 202 are packed into handle 100, then
It passes through twist section 204 to be moved to rotational segment 203 closure nut 102 and resists the end face of limit section 202, closure nut 102 revolves
Turn to be threadedly coupled with handle 100, on handle 100, the first transmission shaft 200 be avoided to skid off the limit of the first transmission shaft 200.
The external screw thread of drive rod 500 and the screw-internal thread fit with cooperation section 201, the rotation of 200 opposite handle 100 of the first transmission shaft drive
Drive rod 500 is moved forward and backward.The section of the twist section 204 is hexagonal, and clamping twist section 204 convenient for spanner is rotated,
According to actual demand, the section of twist section 204 can also be other shapes, such as kidney-shaped or rectangular.
The pointer nut 101 is square nut, is equipped in the handle 100 matched rectangular with the square nut
Chamber, the closure nut 102 include that the extending portion 1022 being connected and abutting part 1024, the outer diameter of the abutting part 1024 are more than
The outer diameter of the extending portion, the extending portion 1022 are located in the handle 100 and are threadedly coupled with handle 100, the abutting
The end face that portion 1024 is connect with extending portion 1022 is connected on the end face of the handle 100, is offered on the closure nut 102
The through-hole coordinated with the rotational segment 203.The closure nut 102 can be rotated by the through-hole relative to the first transmission shaft 200,
1022 outer surface of extending portion, which is equipped with, to be located at the matched external screw thread of 100 internal thread of handle, the abutting part 1024 outside handle 100,
It is easily installed and dismantles.
As illustrated in figures 14-16, a kind of vertebral fusion device, including the fusion device and the operator, the fusion
The follower head of device and the drive rod of the operator are detachably connected.Drive rod described in the present embodiment is equipped with external screw thread, institute
It states follower head and is equipped with threaded hole, drive rod and follower head are realized by screw-thread fit and are detachably connected, according to actual demand,
Chuck can be arranged outside drive rod, setting folder support, drive rod is clipped in support on follower head, then passes through mobile chuck
Make drive rod and the locking of folder support or release；Or it is connect with the follower head in drive rod end set clamping jaw.Pass through institute
It states operator the section of the fusion device one one saves land in implantation human body, fusion device, which is gradually curved, is coiled in centrum periphery, ensures vertebra
Stress balance between body can effectively reduce the number and difficulty of operation.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of fusion device, which is characterized in that including front end, follower head, elastic piece and multiple movable blocks, the front end,
Multiple movable blocks and follower head are rotatablely connected successively, are equipped on the follower head and movable block and the matched installation of elastic piece
Hole, the elastic piece are threaded through in the mounting hole, and elastic piece is connect close to one end of front end with the front end, described
Elastic piece is bent arc-shaped under natural conditions, can be stretched after stress.
2. fusion device as described in claim 1, which is characterized in that further include more axis pins, the front end, movable block and after
It is equipped on end and passes sequentially through the pin with the matched axis hole of the axis pin, the front end, multiple movable blocks and follower head
Axis is rotatablely connected with shaft hole matching, and the side opposite with its axis hole is equipped with slot on the front end, and the elastic piece is by nearby
One end of end is stretched into the slot, and jack is equipped in elastic piece and socket sidewalls, and one end of the elastic piece passes through
The cooperation of bolt and jack is limited in the slot, and the mounting hole on the movable block and follower head is arranged at and its respective axis
The opposite side in hole, and the mounting hole is located at the same side with slot.
3. fusion device as claimed in claim 2, which is characterized in that the first end of the movable block is equipped with the first groove, and institute
The side wall far from the mounting hole for stating the first groove is equipped with the first resigning mouthful being connected to the first groove, the movable block
Second end is equipped with the first convex block, and first end and the second end of the movable block be oppositely arranged, and the mounting hole is by the of movable block
One end is through to second end, and the axis hole, two-phase are equipped on the opposite two side of first groove and first convex block
Adjacent movable block, wherein the first convex block of the first groove of a movable block and another movable block is nested and a wherein axis pin
It is threaded through in the first groove of nested arrangements and the axis hole of the first convex block.
4. fusion device as claimed in claim 3, which is characterized in that one end that the front end is equipped with slot is recessed equipped with second
One end of slot either the second convex block follower head is equipped with third convex block or third groove, and the other end of follower head is equipped with spiral shell
On pit, the second groove two side of the front end and the third convex block of follower head or the second convex block of the front end
And the axis hole is equipped on the third groove two side of follower head, the second groove or the second convex block of front end are the same as adjacent thereto
First convex block of movable block or the first groove nested arrangements and a wherein axis pin are threaded through the second groove and first of nested arrangements
In convex block or the axis hole of the second convex block and the first groove, the third convex block or third groove of follower head are the same as movable block adjacent thereto
First groove or the first convex block are nested and a wherein axis pin is threaded through the third convex block and the first groove or the of nested arrangements
In the axis hole of three grooves and the first convex block, and the side wall of second groove far from the mounting hole is equipped with and connects with the second groove
The second logical resigning mouthful or the side wall of the third groove far from the mounting hole are equipped with the third being connected to third groove
Resigning mouthful.
5. a kind of operator, which is characterized in that for driving claim 1-4 any one of them fusion devices, the operator
Including handle, the first transmission shaft, second driving shaft, driving tube, drive rod and orthopedic pipe, the second driving shaft is located at handle
Interior, one end of first transmission shaft is stretched into the handle and is connect with second driving shaft, described orthopedic pipe one end with it is described
One end connection of the handle far from the first transmission shaft, the driving tube is threaded through in the orthopedic pipe and second driving shaft, and is driven
Pipe is threadedly coupled with second driving shaft, and the drive rod is threaded through in the driving tube and the first transmission shaft, and the one of drive rod
End is threadedly coupled with first transmission shaft, and the other end of drive rod stretches out the driving tube for being connect with the follower head.
6. operator as claimed in claim 5, which is characterized in that further include the slip pipe being arranged between handle and orthopedic pipe and
Casing, the slip pipe is set in outside the driving tube and one end of slip pipe is connect with the handle, and described sleeve pipe is set in described
Slip pipe is outer and is slidably matched with the slip pipe, and described sleeve pipe is equipped with positioning component, and the slip pipe is equipped with and the positioning
The first locating slot, the second locating slot of component matching, the orthopedic pipe are connect with the one end of described sleeve pipe far from handle.
7. such as operator described in claim 5 or 6, which is characterized in that further include pointer nut, the pointer nut setting exists
In handle, and pointer nut is threadedly coupled with first transmission shaft, is offered on the handle and pointer nut travel range
Corresponding observation window, and on handle scale is equipped with observation window corresponding position.
8. operator as claimed in claim 7, which is characterized in that further include closure nut, first transmission shaft include according to
The cooperation section of secondary connection, limit section, rotational segment and twist section, the cooperation section outer surface is equipped with to be coordinated with the pointer nut
External screw thread, cooperation section inner surface are equipped with the internal thread coordinated with the drive rod, and the described one end of cooperation section far from limit section
It is connect with the second driving shaft, the closure nut is set in outside the rotational segment and the end face of closure nut is connected to institute
Limit section one end is stated, closure nut is detachably connected with the handle.
9. operator as claimed in claim 8, which is characterized in that the pointer nut is square nut, is set in the handle
Have with the matched rectangular cavity of the square nut, the closure nut includes the extending portion being connected and abutting part, the abutting
The outer diameter in portion is more than the outer diameter of the extending portion, and the extending portion is located in the handle and is connect with handle threads, described to support
The end face that socket part is connect with extending portion is connected on the end face of the handle, is offered on the closure nut and the rotational segment
The through-hole of cooperation.
10. a kind of vertebral fusion device, which is characterized in that including claim 1-4 any one of them fusion device and right
It is required that 5-9 any one of them operators, the follower head of the fusion device and the drive rod of the operator are detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794803.8A CN106308983B (en) | 2016-08-31 | 2016-08-31 | Fusion device, operator and vertebral fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794803.8A CN106308983B (en) | 2016-08-31 | 2016-08-31 | Fusion device, operator and vertebral fusion device |
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| CN106308983A CN106308983A (en) | 2017-01-11 |
| CN106308983B true CN106308983B (en) | 2018-09-14 |
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| CN201610794803.8A Active CN106308983B (en) | 2016-08-31 | 2016-08-31 | Fusion device, operator and vertebral fusion device |
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Families Citing this family (3)
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| CN107411853B (en) * | 2017-03-28 | 2023-03-21 | 广州爱锘德医疗器械有限公司 | Intervertebral fusion device |
| CN213606817U (en) * | 2020-09-17 | 2021-07-06 | 山东冠龙医疗用品有限公司 | Centrum struts filling device and propeller |
| CN113244027B (en) * | 2021-06-25 | 2021-09-24 | 珠海维尔康生物科技有限公司 | Minimally invasive fence type deformable fusion device used under endoscope |
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| CN103221001A (en) * | 2010-07-15 | 2013-07-24 | Nlt脊椎有限公司 | Surgical systems and methods for implanting deflectable implants |
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| US8025697B2 (en) * | 2006-09-21 | 2011-09-27 | Custom Spine, Inc. | Articulating interbody spacer, vertebral body replacement |
| KR20120138762A (en) * | 2010-02-16 | 2012-12-26 | 엔엘티 스파인 리미티드. | Medical device lock mechanism |
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| CN103221001A (en) * | 2010-07-15 | 2013-07-24 | Nlt脊椎有限公司 | Surgical systems and methods for implanting deflectable implants |
| CN103096843A (en) * | 2010-07-21 | 2013-05-08 | Nlt脊椎有限公司 | Spinal surgery implants and delivery system |
| CN104644291A (en) * | 2013-11-18 | 2015-05-27 | 宝楠生技股份有限公司 | Memory-based intervertebral fusion fixing device |
| 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 |
| CN204931904U (en) * | 2015-09-22 | 2016-01-06 | 浙江科惠医疗器械股份有限公司 | The rotating large volume fusion device of a kind of multi-joint |
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| CN106308983A (en) | 2017-01-11 |
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