CN105662662B - Fusion device lift drive mechanism - Google Patents
Fusion device lift drive mechanism Download PDFInfo
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- CN105662662B CN105662662B CN201610211542.2A CN201610211542A CN105662662B CN 105662662 B CN105662662 B CN 105662662B CN 201610211542 A CN201610211542 A CN 201610211542A CN 105662662 B CN105662662 B CN 105662662B
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- fusion device
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- core
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
-
- 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
- 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of fusion device lift drive mechanisms, including spiral shell core, sandwich, chuck, housing and fixture block, the sandwich is set in outside spiral shell core and is threadedly coupled with spiral shell core, the first end of the spiral shell core is used to connect with the screw rod of fusion device, the first end of the sandwich is for the sliding block with fusion device, upper plate or lower plate connection, the chuck is set in the outer and close sandwich first end of sandwich, the chuck is threadedly coupled with sandwich, the housing is set in the outer and close sandwich second end of sandwich, the housing is slidably matched with sandwich, outer put on offers card slot, spiral shell core position corresponding with the card slot is equipped with annular groove, the fixture block is fastened on across card slot on the annular groove.Rotation chuck makes sandwich clamp sliding block, upper plate or the lower plate of the fusion device, and entire fusion device lift drive mechanism is made to be bonded with fusion device, and the rotation of spiral shell core drives screw rod rotation, increaseds or decreases the height between the upper plate being connect with sliding block, lower plate.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of fusion device lift drive mechanism.
Background technology
In daily life, the case that centrum damages is caused to happen occasionally due to tumour, fracture, infection etc., is being controlled
It is one fusion device of implantation between the centrum of damage by the way of at present when treating these patients, bone tissue generation is made to creep and is replaced
In generation, so as to repair the centrum of damage, however traditional threaded fusion cage height is fixed, and the intervertebral height of human body can be due to people
It is different, the different intervertebral heights of different patients can not be suitble to by adjusting the height of threaded fusion cage in operation, thus can not
Threaded fusion cage is made to be applicable in the intervertebral height of human body completely.The general fusion device with height adjusting function, is driven using screw rod
Two sliding blocks are drawn close or are detached, and increased or decrease the height between the upper plate being connect with sliding block, lower plate, realize that fusion device height becomes
Change, so how to drive the rotation of screw rod and ensure that fusion device entirety is steadily the problem for needing to solve.
Invention content
Based on this, it is necessary in view of the drawbacks of the prior art, provide a kind of fusion device lift drive mechanism, can not only drive
The screw rod rotation of fusion device, and fusion device is integrally steady in screw rod rotation process.
Its technical solution is as follows：
A kind of fusion device lift drive mechanism, spiral shell core, sandwich, chuck, housing and fixture block, the sandwich are set in outside spiral shell core
And be threadedly coupled with spiral shell core, for being connect with the screw rod of fusion device, the first end of the sandwich is used for the first end of the spiral shell core
It is connect with the sliding block, upper plate or lower plate of fusion device, the chuck is set in the outer and close sandwich first end of sandwich, the chuck
It is threadedly coupled with sandwich, the housing is set in the outer and close sandwich second end of sandwich, and the housing is slidably matched with sandwich, institute
It states outer put on and offers card slot, spiral shell core position corresponding with the card slot is equipped with annular groove, and the fixture block is across card slot card
It is located on the annular groove.
Its further technical solution is as follows：
The torque force limiting device that the fusion device lift drive mechanism further includes handle and is arranged on handle, the spiral shell
The second end of core stretches out the housing, and the second end of spiral shell core is connect with the handle.
Sandwich core section outer surface corresponding with housing is in polyhedral, is equipped in the housing matched more with sandwich
Side shape hole, the polyhedral core section of the sandwich and the polygonal hole shiding matching of housing.
The housing and the hole wall of sandwich cooperation are equipped with the first groove or the first protrusion, are set on the outer wall of the sandwich
There are the be slidably matched with the first groove second protrusion or the second groove with the first male cooperation.
The first end of the sandwich has dug holding tank, is offered on the bottom wall of the holding tank and is through to sandwich second end
Through-hole, offer at least one opening for extending to sandwich first end end face on the side wall of the holding tank.
Two openings are offered on the side wall of the holding tank, the first end of the opening is in pre-small post-large loudspeaker
Shape, the holding tank of sandwich clamp the folder support in the sliding block of fusion device, upper plate or lower plate, the table that the folder support is contacted with holding tank
Face is to make sandwich locking folder support with the matched inclined-plane of opening, the chuck rotation.
The first end of the spiral shell core offers and matched first bar-shaped trough of the screw rod of fusion device, the first end of the handle
It offers and matched second bar-shaped trough of the second end of spiral shell core.
The spiral shell core is stepped, and spiral shell core is less than the core section close to its second end close to the diameter of the core section of its first end
Diameter, the sandwich is stepped, and sandwich is less than the straight of the core section close to its second end close to the diameter of the core section of its first end
Diameter, the chuck are set in outside the small core section of sandwich diameter, and the housing is set in outside the big core section of sandwich diameter.
The through-hole is stepped hole, and the stepped hole includes the first interconnected hole and the second hole, and first hole is leaned on
The first end of nearly sandwich, second hole close to sandwich second end, the inner wall in the second hole be equipped with the matched screw thread of spiral shell core,
The spiral shell core sequentially passes through the second hole, the first hole and is placed in sandwich.
The chuck is stepped, and chuck is less than the core section close to its second end close to the diameter of the core section of its first end
Diameter, and the big core section of the chuck diameter is equipped with clamping position.
The advantages of below to preceding solution or principle illustrate：
The screw rod of above-mentioned fusion device lift drive mechanism, the first end of spiral shell core and fusion device connects, the first end of sandwich with
The sliding block of fusion device, upper plate either lower plate connection rotation chuck make sandwich clamp the sliding block of the fusion device, upper plate or under
Plate, so as to which entire fusion device lift drive mechanism be made to be bonded with fusion device, the rotation of spiral shell core drives screw rod rotation, so as to drive
It draws close or detaches with two sliding blocks of screw flight cooperation, increased or decrease the height between the upper plate being connect with sliding block, lower plate,
And fixture block is stuck in card slot and on annular groove, the spiral shell core rotates phase to housing rotation, when the first of sandwich due to being provided with
When end is connect with the sliding block of fusion device, sandwich can horizontally slip with respect to housing, slide steadily, to adapt to the variation of slide position.
Description of the drawings
Fig. 1 is the schematic diagram of fusion device lift drive mechanism described in the embodiment of the present invention；
Fig. 2 is the sectional view of fusion device lift drive mechanism described in the embodiment of the present invention；
Fig. 3 is the schematic diagram of sandwich described in the embodiment of the present invention；
Fig. 4 is the schematic diagram of spiral shell core described in the embodiment of the present invention；
Fig. 5 is the assembling schematic diagram of sandwich, spiral shell core and handle described in the embodiment of the present invention；
Fig. 6 is fusion device lift drive mechanism described in the embodiment of the present invention and fusion device diagrammatic cross-section；
Fig. 7 is the fusion device schematic diagram of one of which structure；
Fig. 8 is the fusion device schematic diagram of another structure.
Reference sign：
1a (1b), sliding block, 1c, nut, 11a (22b) (33c), folder support, 2a (2b) (2c), lower plate, 3a (3b) (3c), on
Plate, 4a (4b) (4c), screw rod, 10, spiral shell core, 110, annular groove, the 120, first bar-shaped trough, 20, sandwich, 210, holding tank, 220,
Through-hole, 230, opening, 30, chuck, 310, clamping position, 40, housing, 410, card slot, 50, fixture block, 60, handle, 610, Article 2
Shape slot, 70, torque force limiting device.
Specific embodiment
As shown in Fig. 1 to 5, a kind of fusion device lift drive mechanism, spiral shell core 10, sandwich 20, chuck 30, housing 40 and fixture block
50, the sandwich 20 is set in outside spiral shell core 10 and is threadedly coupled with spiral shell core 10, and the first end of the spiral shell core 10 is used for and fusion device
Screw rod connection, the first end of the sandwich 20 presss from both sides for being connect with the sliding block, upper plate or lower plate of fusion device described in Fig. 6
Folder support 11a connections in the first end of core 20 and the sliding block 1a of fusion device, the lower plate 2b of fusion device is equipped with folder support 22b in Fig. 7,
The upper plate 3c of fusion device is equipped with folder support 33c in Fig. 8, different according to the setting that actual fused device folder restitope is put, the sandwich 20
First end can also connect with folder support 22b or folder support 33c, the chuck 30 is set in that sandwich 20 is outer and close sandwich 20 first
End, the chuck 30 are threadedly coupled with sandwich 20, and the housing 40 is set in 20 second end of outer and close sandwich of sandwich 20, described
Housing 40 is slidably matched with sandwich 20, and card slot 410 is offered on the housing 40, and the spiral shell core 10 is corresponding with the card slot 410
Position be equipped with annular groove 110, the fixture block 50 is fastened on across card slot 410 on the annular groove 110.
It is described to state fusion device lift drive mechanism, the first end of the spiral shell core 10 and screw rod 4a of fusion device, screw rod 4b or spiral shell
Bar 4c connections, the first end of sandwich 20 and the sliding block 1a of fusion device, upper plate 3c or lower plate 2b connections, rotation chuck 30 make sandwich
20 clamp the folder support 22b on the folder support 33c or lower plate 2b on folder support 11a, upper plate 3c on the sliding block 1a of the fusion device, from
And entire fusion device lift drive mechanism is made to be bonded with fusion device, spiral shell core 10 rotation drive screw rod rotation, so as to drive with
Two sliding blocks of screw flight cooperation are drawn close or are detached, and increased or decrease the height between the upper plate being connect with sliding block, lower plate, and
And be stuck on card slot 410 and annular groove 110 due to being provided with fixture block 50, the spiral shell core 10 rotates phase to 40 rotation of housing, when
When the first end of sandwich 20 and the sliding block of fusion device connect, sandwich 20 can horizontally slip with respect to housing 40, slide steadily, to adapt to
The variation of slide position.Sandwich 20 is then with sliding block synchronizing moving in Fig. 6, and folder support is in lower plate in Fig. 7, since lower plate is fixed not
Dynamic, sandwich 20, by the way that sandwich 20 is set to be connect with the folder support 2b in lower plate, is rotating through screw rod with respect to screw rod not shift position
Cheng Zhonggeng is light, and upper plate is made to remain fixed position with lower plate.
As shown in Figure 1, 2, the fusion device lift drive mechanism further includes handle 60 and is arranged on handle 60
Torsion limits 70 devices, and the second end of the spiral shell core 10 stretches out the housing 40, and the second end of spiral shell core 10 connects with the handle 60
It connects.Spiral shell core 10 is driven to rotate by rotating handle 60, the torque force limiting device 70 is to limit torsion, controls lifting force degree,
It i.e. when reaching certain dynamics, can not twist, handle 60 is avoided to rotate excessively, ratchet etc. can be selected and be used as torque force limiting device 70.
As shown in Figure 2,3, the sandwich 20 and 40 corresponding core section outer surface of housing are in polyhedral, in the housing 40
It is slided equipped with the polygonal hole with 20 matched polygonal hole of sandwich, the polyhedral core section of the sandwich 20 and housing 40
Match.The polyhedral core section of sandwich 20 described in the present embodiment is in hexahedron shape, naturally it is also possible to and it is other shapes, such as five faces
Body, heptahedron etc., be correspondingly provided in the housing 40 with 20 matched hexagonal hole of sandwich, pentagon hole or heptagon hole,
The inner surface of the housing 40 and polyhedral core section shiding matching, in this way setting make sandwich 20 that can only control cunning with respect to housing 40
It is dynamic, without rotating.
According to actual demand, the sandwich 20 can not also be arranged to polyhedron with 40 corresponding core section outer surface of housing
Shape, but the first groove or the first protrusion are set on the hole wall coordinated in the housing 40 and sandwich 20, in the sandwich 20
Outer wall on setting with the first groove be slidably matched second protrusion or the second groove with the first male cooperation, so as to make folder
The opposite housing 40 of 20 energy of core slides, without rotating.
As shown in Fig. 3,6, the first end of the sandwich 20 has dug holding tank 210, is opened on the bottom wall of the holding tank 210
At least one, which is offered, equipped with the through-hole 220 for being through to 20 second end of sandwich, on the side wall of the holding tank 210 extends to sandwich
The opening 230 of 20 first end end faces.The folder support 11a, folder support 22b or folder support 33c are placed in the holding tank 210, are passed through
On the other hand 230 one side of the opening enable the bore of holding tank 210 that miniature deformation occurs, convenient for folder convenient for clamping support
Grip support.Offered on the side wall of holding tank 210 described in the present embodiment two it is described opening 230, it is described opening 230 first
In pre-small post-large horn-like, the holding tank 210 of sandwich 20 clamps the folder support 11a of fusion device, folder support 22b or folder support 33c at end,
The surface that the folder support is contacted with holding tank 210 is to make sandwich 20 with 230 matched inclined-planes of the opening, the rotation of chuck 30
Locking folder support.The front end sleeve of the sandwich 20 is in folder support, due to folder support 11a, folder support 22b or folder support 33c and holding tank 210
The surface of contact is inclined-plane, and the front end of sandwich 20 offers the opening 230 along its axial direction, be open 230 first end be in before
It is big horn-like after small, so chuck 30 makes sandwich 20 towards the sandwich 20 that 230 both sides of opening are constantly oppressed while folder support rotation
Locking folder support, reversely rotates chuck 30, unclamps sandwich 20, easy to disassemble.
As shown in figure 4, in the present embodiment, the first end of the spiral shell core 10 offers and the screw rod of fusion device matched first
Bar-shaped trough 120, the first end of the handle 60 offer and matched second bar-shaped trough 610 of the second end of spiral shell core 10.The spiral shell
One end that core 10 is connect with handle 60 be in the 610 matched kidney-shaped of the second bar-shaped trough, spiral shell core 10 is made to link with handle 60, two
It does not relatively rotate between person.It is corresponding, one end that screw rod 4a, screw rod 4b or screw rod 4c are connect with spiral shell core 10 be in it is described
First bar-shaped trough, 120 matched kidney-shaped, makes screw rod link with spiral shell core 10, does not relatively rotate between the two.
As shown in figure 4, the spiral shell core 10 is stepped, spiral shell core 10 is less than close to the diameter of the core section of its first end close to it
The diameter of the core section of second end, as shown in Figure 2,3, the sandwich 20 are stepped, and sandwich 20 is close to the core section of its first end
Diameter is less than the diameter of the core section close to its second end, and the chuck 30 is set in outside the small core section of 20 diameter of sandwich, described outer
Set 40 is set in outside the big core section of 20 diameter of sandwich.The through-hole 220 is stepped hole, and the stepped hole includes be interconnected the
One hole and the second hole, first hole is close to the first end of sandwich 20, and second hole is close to the second end of sandwich 20, the second hole
Inner wall be equipped with 10 matched screw thread of spiral shell core, the spiral shell core 10 sequentially passes through the second hole, the first hole and is placed in sandwich 20.This
Sample setting makes spiral shell core 10 be limited in sandwich 20, and convenient for being aligned to card slot 410 and annular groove 110, is easily installed, separately
On the one hand to adapt to the screw rod of fusion device and the size of folder support.The chuck 30 is stepped, chuck 30 close to its first
The diameter of the core section at end is less than the diameter of the core section close to its second end, and the big core section of 30 diameter of the chuck is equipped with clamping
Position 310, on the one hand to adapt to fusion device size, the opposing party strengthens the intensity of clamping position 310, by the folder for clamping chuck 30
Position 310 is held, facilitates drive folder support rotation, realizes elastic sandwich 20.
Fig. 6 is the assembling section of fusion device lift drive mechanism and fusion device, fusion device upper plate 3a, lower plate in the figure
2a and the sliding block 1a of left and right are intermeshed by the tooth on inclined-plane and coordinated, and sandwich 20 is sleeved on folder support 11a, rotates screw rod 4a, band
It is dynamic it is synchronous with two sliding block 1a of its thread fitting drawn close to centre, gradually jack up upper plate 3a and/or downwards jack-up lower plate 2a upwards,
Upper plate 3a and lower plate 2a are strutted, so as to make the distance between upper plate 3a and lower plate 2a increase, screw rod 4a is rotated backward, drives two
Sliding block 1a synchronizations are moved outward, make the distance between upper plate 3a and lower plate 2a reduction, are realized that height is adjusted, are suitble to different patients
Different intervertebral heights, drive the fusion device of the structure, the sandwich 20 is moved with the movement of upper plate 3c.Drive the structure
Fusion device, the sandwich 20 are moved with the movement of sliding block 1a.
The elevating lever that the sliding block 1b of fusion device shown in Fig. 7, upper plate 3b, lower plate 2b and left and right passes through two cross-articulations
Connection, sandwich 20 are sleeved on folder support 22b, rotate screw rod 4b, and drive is synchronous with two sliding block 1b of its thread fitting to be drawn close to centre,
So as to which two elevating levers be driven to rotate, upper plate 3b and lower plate 2b are strutted, so as to make the distance between upper plate 3b and lower plate 2b increase,
Rotate backward screw rod 4b, two sliding block 1b synchronizations driven to move outward, upper 3b plates are drawn close with lower plate 2b, so as to make upper plate 3b and
The distance between lower plate 2b reductions realize that height is adjusted, are suitble to the different intervertebral heights of different patients.Drive the fusion of the structure
Device, if lower plate 2b positions are fixed, the sandwich 20 is fixed with respect to 10 position of spiral shell core.
Fusion device shown in Fig. 8, screw rod 4c one end are rotationally limited on lower plate 2c, the other end and nut 1c screw threads
Connection, and nut 1c is connect with upper plate 3c, upper plate 3c and lower plate 2c is coordinated by the tooth engagement on inclined surface, and sandwich 20 is sleeved on folder
It holds in the palm on 33c, rotates screw rod 4c, drive is synchronous with the nut 1c of its thread fitting to be drawn close among screw rod, so as to drive upper plate 3c
Rise along the inclined surface of lower plate 2c, increase the height between upper plate 3c and lower plate 2c, rotate backward screw rod 4c, drive nut 1c
It is synchronous to be moved to far from the direction among screw rod, so as to which upper plate 3c be driven to decline along the inclined surface of lower plate 2c, make upper plate 3c under
Height between plate 2c reduces, and realizes that height is adjusted, is suitble to the different intervertebral heights of different patients, drives the fusion of the structure
Device, the sandwich 20 are moved with the movement of upper plate 3c.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make 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.
Embodiment described above only expresses the several embodiments of the present invention, and description 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 lift drive mechanism, which is characterized in that spiral shell core, sandwich, chuck, housing and fixture block, the sandwich set
It is located at outside spiral shell core and is threadedly coupled with spiral shell core, the first end of the spiral shell core is used to connect with the screw rod of fusion device, the sandwich
For being connect with the sliding block, upper plate or lower plate of fusion device, the chuck is set in outside sandwich and close to sandwich first first end
End, the chuck are threadedly coupled with sandwich, and the housing is set in the outer and close sandwich second end of sandwich, the housing and sandwich
It is slidably matched, outer put on offers card slot, and spiral shell core position corresponding with the card slot is equipped with annular groove, the fixture block
It is fastened on the annular groove across card slot.
2. fusion device lift drive mechanism as described in claim 1, which is characterized in that it further includes handle and is arranged on hand
Torque force limiting device on handle, the second end of the spiral shell core stretch out the housing, and the second end of spiral shell core is connect with the handle.
3. fusion device lift drive mechanism as claimed in claim 1 or 2, which is characterized in that the sandwich is corresponding with housing
Core section outer surface is in polyhedral, is equipped with and the matched polygonal hole of sandwich, the polyhedral core of the sandwich in the housing
Section and the polygonal hole shiding matching of housing.
4. fusion device lift drive mechanism as claimed in claim 1 or 2, which is characterized in that the housing and sandwich cooperation
Hole wall is equipped with the first groove or the first protrusion, the outer wall of the sandwich be equipped be slidably matched with the first groove it is second convex
Rise or the second groove with the first male cooperation.
5. fusion device lift drive mechanism as claimed in claim 1 or 2, which is characterized in that the first end of the sandwich is dug
There is holding tank, the through-hole for being through to sandwich second end is offered on the bottom wall of the holding tank, is opened on the side wall of the holding tank
The opening for extending to sandwich first end end face equipped at least one.
6. fusion device lift drive mechanism as claimed in claim 5, which is characterized in that offered on the side wall of the holding tank
Two openings, the first end of the opening in pre-small post-large horn-like, the holding tank of sandwich clamp the sliding block of fusion device,
Folder support on upper plate or lower plate, the surface that the folder support is contacted with holding tank are and the matched inclined-plane of opening, the folder
Set rotation makes sandwich locking folder support.
7. fusion device lift drive mechanism as claimed in claim 2, which is characterized in that the first end of the spiral shell core offer with
Matched first bar-shaped trough of screw rod of fusion device, the first end of the handle offer and the matched Article 2 of the second end of spiral shell core
Shape slot.
8. fusion device lift drive mechanism as claimed in claim 1 or 2, which is characterized in that the spiral shell core is stepped, spiral shell core
It is less than the diameter of the core section close to its second end close to the diameter of the core section of its first end, the sandwich is stepped, and sandwich leans on
The diameter of the core section of its nearly first end is less than the diameter of the core section close to its second end, and it is small that the chuck is set in sandwich diameter
Outside core section, the housing is set in outside the big core section of sandwich diameter.
9. fusion device lift drive mechanism as claimed in claim 5, which is characterized in that the through-hole be stepped hole, the rank
Terraced hole includes the first interconnected hole and the second hole, and first hole is close to the first end of sandwich, and second hole is close to folder
The second end of core, the inner wall in the second hole is equipped with to be sequentially passed through the second hole, the first hole and puts with the matched screw thread of spiral shell core, the spiral shell core
In in sandwich.
10. fusion device lift drive mechanism as claimed in claim 1 or 2, which is characterized in that the chuck is stepped, folder
Set is less than the diameter of the core section close to its second end, and the core section that the chuck diameter is big close to the diameter of the core section of its first end
It is equipped with clamping position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211542.2A CN105662662B (en) | 2016-04-05 | 2016-04-05 | Fusion device lift drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211542.2A CN105662662B (en) | 2016-04-05 | 2016-04-05 | Fusion device lift drive mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN105662662A CN105662662A (en) | 2016-06-15 |
| CN105662662B true CN105662662B (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610211542.2A Active CN105662662B (en) | 2016-04-05 | 2016-04-05 | Fusion device lift drive mechanism |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014184694A2 (en) | 2013-05-13 | 2014-11-20 | Neo Medical Sa | Orthopedic implant kit |
| CN106166092B (en) * | 2016-08-31 | 2018-09-14 | 广州爱锘德医疗器械有限公司 | Lift threaded fusion cage and the operator for driving lifting threaded fusion cage |
| CN106308984B (en) * | 2016-08-31 | 2018-09-14 | 广州爱锘德医疗器械有限公司 | Bidirectional up-down fusion device and rotating mechanism for driving Bidirectional up-down fusion device |
| JP7515399B2 (en) | 2018-02-26 | 2024-07-12 | ネオ・メディカル・ソシエテ・アノニム | Cage Holder |
| WO2021001764A2 (en) | 2019-07-02 | 2021-01-07 | Neo Medical Sa | Method, device, and system for preventing lateral stress on bone structures resulting from off-axis forces caused by screw driver and screw extender |
Citations (1)
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