CN106420121B - The operating mechanism of arc fusion device - Google Patents
The operating mechanism of arc fusion device Download PDFInfo
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- CN106420121B CN106420121B CN201610796129.7A CN201610796129A CN106420121B CN 106420121 B CN106420121 B CN 106420121B CN 201610796129 A CN201610796129 A CN 201610796129A CN 106420121 B CN106420121 B CN 106420121B
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- Prior art keywords
- pipe
- handle
- fusion device
- arc fusion
- orthopedic
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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
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Neurology (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)
- Physical Education & Sports Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of operating mechanisms of arc fusion device, including handle, first transmission shaft, second driving shaft, driving tube, drive rod and orthopedic pipe, the second driving shaft is located in handle, one end of first transmission shaft is stretched into handle and is connect with second driving shaft, 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, driving tube is threadedly coupled with second driving shaft, drive rod 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, the other end of drive rod stretches out the driving tube.Drive rod is connect with the tail end of arc fusion device, reversely rotate the first transmission shaft, driving tube is set to be moved with drive rod synchronous backward, arc fusion device is pulled in orthopedic pipe, rotate in the forward direction the first transmission shaft, arc fusion device is slowly released into orthopedic pipe, arc fusion device, which is gradually curved, to be coiled in outside centrum.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of operating mechanism of arc 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.
Since the intervertebral of human body is oval, spiraled in centrum periphery by the way that arc fusion device is arranged, it can be in centrum two
Side all provides supporting surface, but how arc fusion device to be relaxedly and rapidly implanted into human body and it is made to spiral in centrum periphery is to need
It solves the problems, such as.
Invention content
Based on this, it is necessary in view of the drawbacks of the prior art, a kind of operating mechanism of arc fusion device is provided, it can be easily fast
Arc fusion device promptly is implanted into human body and it is made to spiral in centrum periphery.
Its technical solution is as follows：
A kind of operating mechanism of arc fusion device, including handle, the first transmission shaft, second driving shaft, driving tube, drive rod
And orthopedic pipe, the second driving shaft are located in handle, one end of first transmission shaft is stretched into the handle and with second
It is driven axis connection, described orthopedic pipe one end is connect with the one end of the handle far from the first transmission shaft, and the driving tube is threaded through
In the orthopedic pipe and second driving shaft, and driving tube is threadedly coupled with second driving shaft, and the drive rod is threaded through the drive
In dynamic pipe and the first transmission shaft, and one end of drive rod is threadedly coupled with first transmission shaft, and the other end of drive rod stretches out
The driving tube.
Its further technical solution is as follows:
The operating mechanism of the arc fusion device further includes the slip pipe and casing being arranged between handle and orthopedic pipe,
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 outside the slip pipe
And be slidably matched with the slip pipe, the orthopedic pipe is connect with the one end of described sleeve pipe far from handle, and described sleeve pipe is equipped with fixed
Hyte part, the slip pipe outer surface are equipped with the first locating slot and the second locating slot coordinated with the positioning component.
The positioning component includes positioning column and the spring that is arranged in positioning column, and the positioning column is embedded in the set
In pipe, the outer spring end is connected with card bead, and the card bead is matched with first locating slot, the second locating slot.
The orthopedic pipe is hollow tube, and endoporus is square hole, and the rod segment of the orthopedic pipe and casing connection is cylindrical section,
Rod segment far from casing is square tube section.
The slip pipe is equipped with the limit shaft shoulder close to one end of orthopedic pipe, and described sleeve pipe is equipped with close to one end inner surface of handle
Flange, the flange are equipped with the card slot arranged along casing radial direction, and the positioning component is arranged in the card slot, works as institute
When stating positioning component and sliding into the second locating slot, the flange is against on the limit shaft shoulder.
The operating mechanism of the arc fusion device, further includes guide pipe, and the guide pipe is set in outside the driving tube
And one end of guide pipe is connect with the handle, the orthopedic pipe sleeve, which is located at outside the guide pipe and is slided with the guide pipe, to be connected
It connects.
The operating mechanism of the arc fusion device further includes pointer nut, and the pointer nut is arranged in handle, and
Pointer nut is threadedly coupled with first transmission shaft, and sight corresponding with pointer nut travel range is offered on the handle
Examine window.
The pointer nut is square nut, is equipped with and the matched rectangular cavity of the square nut in the handle.
The operating mechanism of the arc fusion device, further includes closure nut, and first transmission shaft includes being sequentially connected
Cooperation section, limit section, rotational segment and twist section, the cooperation section outer surface is equipped with the outer spiral shell coordinated with the pointer nut
Line, cooperation section inner surface are equipped with the internal thread coordinated with the drive rod, and the cooperation section one end and institute far from limit section
Second driving shaft connection is stated, the closure nut is set in outside the rotational segment and the end face of closure nut is connected to the limit
Position section one end, closure nut are detachably connected with the handle.
The closure nut includes the extending portion being connected and abutting part, and the outer diameter of the abutting part is more than the extending portion
Outer diameter, the extending portion is located in the handle and is connect with handle threads, the end face that the abutting part is connect with extending portion
It is connected on the end face of the handle, the through-hole coordinated with the rotational segment is offered on the closure nut.
The advantages of below to preceding solution or principle illustrate：
Drive rod is moved to orthopedic by the operating mechanism of above-mentioned arc fusion device in use, rotating in the forward direction the first transmission shaft
Pipe is outer, and the rotation of the first transmission shaft drives the second driving shaft to turn, and makes driving tube and drive rod synchronizing moving, then will driving
Bar is connect with the tail end of arc fusion device, reversely rotates the first transmission shaft, so that driving tube is moved with drive rod synchronous backward, by institute
It states arc fusion device to pull in the orthopedic pipe, due to the limitation of orthopedic pipe, the arc fusion device is straightened, while the drive
Dynamic pipe is connected on the elastic piece of arc fusion device, for pushing elastic piece to move outward, is rotated in the forward direction described first again and is passed
The arc fusion device is slowly released the orthopedic pipe by moving axis, and arc fusion device slowly enters human body, stretches out the arc of orthopedic pipe
Shape fusion device is gradually curved in the elastic force effect of elastic piece and is coiled in outside centrum, finally detaches drive rod with fusion device, by institute
Drive rod is stated to exit.The operating mechanism of the arc fusion device is easy to operate, can the fusion device be relaxedly and rapidly implanted into human body
It is interior.
Description of the drawings
Fig. 1 is the schematic diagram of the operating mechanism of arc fusion device described in the embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section of the A-A along Fig. 1；
Fig. 3 is the structural schematic diagram of the first transmission shaft described in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of handle described in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of orthopedic pipe described in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of slip pipe described in the embodiment of the present invention；
Fig. 7 is the close-up schematic view of Fig. 2；
Fig. 8 is that arc fusion device is pulled in the signal of orthopedic pipe by the operating mechanism of arc fusion device described in the embodiment of the present invention
Figure；
Fig. 9 is the diagrammatic cross-section of the B-B along Fig. 8；
Figure 10 is that arc fusion device is released showing for orthopedic pipe by the operating mechanism of arc fusion device described in the embodiment of the present invention
It is intended to；
Figure 11 is the structural schematic diagram one of arc fusion device described in the embodiment of the present invention；
Figure 12 is the structural schematic diagram two of arc fusion device described in the embodiment of the present invention.
Reference sign：
100, handle, 101, pointer nut, 102, closure nut, 1022, extending portion, 1024, abutting part, 103, observation
Window, the 200, first transmission shaft, 201, cooperation section, 202, limit section, 203, rotational segment, 204, twist section, 300, second driving shaft,
400, driving tube, 500, drive rod, 600, orthopedic pipe, 601, cylindrical section, 602, square tube section, 700, slip pipe, the 701, first positioning
Slot, the 702, second locating slot, 703, the limit shaft shoulder, 800, casing, 801, flange, 900, positioning component, 901, positioning column, 902,
Spring, 903, card bead, 10, front end, 20, follower head, 210, threaded hole, 30, elastic piece, 40, movable block, 50, mounting hole.
Specific implementation mode
As shown in Figure 1, 2, a kind of operating mechanism of arc fusion device, including handle 100, the first transmission shaft 200, second pass
Moving axis 300, driving tube 400, drive rod 500 and orthopedic pipe 600, the second driving shaft 300 are located in handle 100, and described
One end of one transmission shaft 200 is stretched into the handle 100 and is connect with second driving shaft 300, described orthopedic pipe one end with it is described
One end connection of the handle 100 far from the first transmission shaft 200, the driving tube 400 are threaded through the orthopedic pipe 600 and second and are driven
In axis 300, and driving tube 400 is threadedly coupled with second driving shaft 300, the drive rod 500 be threaded through the driving tube 400 and
In first transmission shaft 200, and one end of drive rod 500 is threadedly coupled with first transmission shaft 200, drive rod 500 it is another
The driving tube 400 is stretched out at end.
As seen in figs. 8-10, 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 tail end of arc fusion device, the operating mechanism is for will be as described in Figure 11,12 in the present embodiment
Arc fusion device implantation human body in, the drive rod 500 is threadedly coupled with the follower head 20 of the arc fusion device, reversely rotation
Turn the first transmission shaft 200, driving tube 400 is made to be moved with 500 synchronous backward of drive rod, the arc fusion device is pulled in into described rectify
In shape pipe 600, due to the limitation of orthopedic pipe 600, the elastic piece 30 of the arc fusion device is straightened, while the driving tube
400 are connected on the elastic piece 30, for pushing elastic piece to move outward, rotate in the forward direction first transmission shaft 200 again,
The arc fusion device is slowly released into the orthopedic pipe 600, arc fusion device slowly enters human body, stretches out orthopedic pipe 600
Elastic piece 30 restores to the original state under the action of elastic force and bends, and so that the arc fusion device is gradually curved and is coiled in centrum
Outside, whole operation mechanism is finally rotated, so that drive rod 500 is detached with the follower head 20, the drive rod 500 is exited.Institute
Spacing size of the driving tube 400 close to one end of elastic piece 30 with drive rod 500 close to one end of follower head 20 is stated, according to described
Elastic piece 30 stretches out the follower head 20 distance when being straightened is adjusted, it is ensured that driving tube 400 can be connected to the elastic piece 30
On, the operating mechanism of the arc fusion device is easy to operate, and relaxedly and rapidly the arc fusion device can be implanted into human body.
As shown in Fig. 1,2 and 5-10, the operating mechanism of arc fusion device described in the present embodiment further includes being arranged in handle 100
Slip pipe 700 between orthopedic pipe 600 and casing 800, the slip pipe 700 are set in that the driving tube 400 is outer and slip pipe 700
One end is connect with the handle 100, 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 is equipped with positioning component 900, the slip pipe 700 is equipped with fixed with the positioning component 900 matched first
Position slot 701, the second locating slot 702, the orthopedic pipe 600 are connect with the one end of described sleeve pipe 800 far from handle 100.In use,
Casing 800 and orthopedic pipe 600 are first moved to outermost end, i.e., positioning component 900 is moved to second by the first locating slot 701 determines
Then position slot 702 rotates forward the first transmission shaft 200, drive rod 500 and driving tube 400 is moved outermost with reference to Fig. 9,10
End, then the follower head 20 of arc fusion device is screwed on the top screw thread of drive rod 500, then reversely rotate the first transmission shaft
200 drive rods 500 and driving tube 400 are moved to inner terminal, as shown in figure 9, the arc fusion device is pulled in orthopedic pipe 600
It is interior, the first transmission shaft 200 is rotated in the forward direction again, arc fusion device is slowly released, effect is as shown in Figure 10.Due to orthopedic pipe
600 is bigger, and if direct rotary operation mechanism exits fusion device, the rotation of orthopedic pipe 600 can very likely be damaged to centrum god
Through so being slidably matched by casing 800 and slip pipe 700, orthopedic pipe 600 being moved to after inner terminal and just rotates the operation machine
Structure makes drive rod 500 rotate, is detached with the follower head 20, exit fusion device, and people will not be met by exiting the orthopedic pipe of process 600
Body avoids damage to basivertebral nerve, referring to Fig.1, shown in 2.
As shown in figure 5, orthopedic pipe 600 described in the present embodiment is hollow tube, endoporus is square hole, the orthopedic pipe and set
The rod segment of pipe connection is cylindrical section 601, and the rod segment far from casing is square tube section 602.The cylindrical section 601 and described sleeve pipe 800
The square hole being arranged in connection, cylindrical section 601 and square tube section 602 is matched with the shape of arc fusion device, is played nature
Under arc-shaped arc fusion device be constrained to linearly.
According to actual demand, it is also not provided with casing 800 and slip pipe 700, is directly connect orthopedic pipe 600 with handle 100, together
When for avoid exiting when be damaged to basivertebral nerve, orthopedic pipe 600 can be arranged to cylindrical tube, and round and smooth processing is done in its end
Deng.Alternatively, being not provided with casing 800 and slip pipe 700, and a guide pipe is set, the guide pipe is set in the driving tube
Outer and one end of guide pipe is connect with the handle, and the orthopedic pipe sleeve is located at outside the guide pipe and is slided with the guide pipe
Connection, orthopedic pipe is directly slided, orthopedic pipe is avoided to be damaged to centrum when drive rod being made to exit arc fusion device on guide pipe
Nerve can be arranged the positioning component on the orthopedic pipe, first locating slot, second are arranged on the guide pipe
Locating slot positions after so that orthopedic pipe is slided into predeterminated position with guide pipe, or by the way of sliding slot and sliding block cooperation etc..
As shown in Fig. 2,6,9, the slip pipe 700 is equipped with the limit shaft shoulder 703 close to one end of orthopedic pipe, and described sleeve pipe is close
One end inner surface of handle is equipped with flange 801, and the flange 801 is equipped with the card slot arranged along casing radial direction, described fixed
Hyte part 900 is arranged in the card slot, when the positioning component 900 slides into the second locating slot 702, the flange 801
It is against on the limit shaft shoulder 703.I.e. casing 800 is equipped with the internal diameter of the pipeline section of positioning component 900 less than casing 800 and orthopedic pipe
The internal diameter of the pipeline section of 600 connections, for such casing 800 when being slided on slip pipe 700, flange 801 can withstand on the limit shaft shoulder
On 703, avoid sliding excessive.As shown in fig. 7, the positioning component 900 includes positioning column 901 and is arranged in positioning column 901
Interior spring 902,902 outer end of the spring are connected with card bead 903, and the positioning column 901 is embedded in described sleeve pipe 800, institute
It states card bead 903 with first locating slot 701, the second locating slot 702 to coordinate, plays the role of positioning casing 800, it is sliding
Dynamic casing 800 makes spring 902 compress, to make card bead 903 skid off the first locating slot 701 or the second locating slot 702.According to reality
Spring and card bead 903 can also be arranged directly in the card slot, can also play the effect positioned to casing 800 for demand,
In the present embodiment, is set in described sleeve pipe 800 there are two opposite positioning component 900, make about 800 both sides of casing that can be limited
Position.
As shown in Figure 1, 2, the operating mechanism of the arc fusion device further includes pointer nut 101, the pointer nut 101
It is arranged in handle 100, and pointer nut 101 is threadedly coupled with first transmission shaft 200, is offered on the handle 100
Observation window 103 corresponding with 101 stroke range of pointer nut, and on handle 100 scale is equipped with 103 corresponding position of observation window.
First transmission shaft, 200 outer surface is equipped with and the matched external screw thread of 101 internal thread of pointer nut, 200 rotary course of the first transmission shaft
100 position of middle opposite handle is constant, pointer nut 101 with the rotation of the first transmission shaft 200 along the first transmission shaft 200 in handle
It is moved in 100, the position of the movement of pointer nut 101 can be clearly observed by the observation window 103 on handle 100, to right
It should show that arc fusion device enters the depth of human body.Pointer nut 101 described in the present embodiment is square nut, the handle 100
It is interior be equipped with the matched rectangular cavity of the square nut, pointer nut 101 is limited in rectangular cavity, not with the first transmission shaft
200 rotation and rotate, according to actual demand, pointer nut 101 can also be triangle or other shapes, corresponding handle
Matching triangular chamber etc. is equipped in 100.
As shown in Figure 1, 2, 3, the operating mechanism of the arc fusion device further includes closure nut 102, first transmission
Axis 200 includes sequentially connected cooperation section 201, limit section 202, rotational segment 203 and twist section 204,201 appearance of cooperation section
Face is equipped with the external screw thread that coordinate with the pointer nut 101, and cooperation 201 inner surface of section with the drive rod 500 equipped with coordinating
Internal thread, and the one end of the cooperation section 201 far from limit section 202 is connect with the second driving shaft 300, the closure nut
102 are set in that the rotational segment 203 is outer and the end face of closure nut 102 is connected to described 202 one end of limit section, closure nut
102 are detachably connected with the handle 100.When assembly, first the cooperation section 201 of the first transmission shaft 200 and limit section 202 are packed into
In handle 100, then passes through twist section 204 to be moved to rotational segment 203 closure nut 102 and resist the end face of limit section 202, envelope
The rotation of head nut 102 is threadedly coupled with handle 100, to which the limit of the first transmission shaft 200 on handle 100, is avoided the first biography
Moving axis 200 skids off.The external screw thread of drive rod 500 and the screw-internal thread fit with cooperation section 201,200 opposite handle of the first transmission shaft
100 rotations, drive drive rod 500 to be moved forward and backward.The section of the twist section 204 is hexagonal, and twist section is clamped convenient for spanner
204 are rotated, and according to actual demand, the section of twist section 204 can also be other shapes, such as kidney-shaped or rectangular.
As shown in Figure 1, 2, the closure nut 102 includes the extending portion 1022 being connected and abutting part 1024, described to support
The outer diameter of socket part 1024 is more than the outer diameter of the extending portion, the extending portion 1022 be located in the handle 100 and with handle 100
It is threadedly coupled, the end face that the abutting part 1024 is connect with extending portion 1022 is connected on the end face of the handle 100, the envelope
The through-hole coordinated with the rotational segment 203 is offered on head nut 102.The closure nut 102 can be opposite by the through-hole
First transmission shaft 200 rotates, and 1022 outer surface of extending portion is equipped with and the matched external screw thread of 100 internal thread of handle, the abutting part
1024 are located at outside handle 100, are easily installed and dismantle.
As shown in Figure 11,12, the arc fusion device of the operating mechanism driving of arc fusion device described in the present embodiment, including it is preceding
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 according to
It is equipped on secondary rotation connection, the follower head 20 and movable block 40 and 30 matched mounting hole 50 of elastic piece, the elastic piece
30 are threaded through 50 in the mounting hole, and elastic piece 30 is connect close to one end of front end 10 with the front end 10, the bullet
Property piece 30 be bent under natural conditions arc-shaped, the follower head is equipped with the threaded hole 210 that coordinates with drive rod.The present embodiment institute
It is spring leaf to state elastic piece 30, can also be strip or sheet knot that other have elasticity and are bent camber under natural conditions
Structure bends to arc as shown in Figure 1, 2 in the case where not stressing.Traditional fusion device is generally rectangular, and the vertebra of human body
Between be oval, a traditional fusion device can not ensure centrum both sides stress balance, the fusion of arc described in the present embodiment
Device makes the front end 10, multiple movable blocks 40 and follower head 20 of rotation connection also be bent camber under the action of elastic piece 30,
Centrum both sides stress equalization is can guarantee around centrum setting.
The arc fusion device, elastic piece 30 are bent arc-shaped under natural conditions, can be stretched after stress, will end thereafter
20 connect with the drive rod, while its elastic piece 30, which is stretched, makes front end 10, multiple movable blocks 40 and follower head 20 be drawn
It is in alignment, follower head 20 is then slowly pushed, its front end 10 is made to be introduced into centrum, simultaneously because front end 10, multiple
Movable block 40 and follower head 20 are each other rotation connections, the front end 10, the more under the action of bending force of elastic piece 30
A 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 arc fusion device
Enter centrum from side, be finally spiraled into the other side of centrum, the both sides of centrum is made all to be supported.Arc described in the present embodiment
Shape fusion device is also applied for other uses similar to the arc fusion device described in Fig. 1,2.
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 operating mechanism of arc fusion device, which is characterized in that including handle, the first transmission shaft, second driving shaft, driving
Pipe, drive rod and orthopedic pipe, the second driving shaft are located in handle, and one end of first transmission shaft is stretched into the handle
And 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
Pipe is threaded through in the orthopedic pipe and second driving shaft, and driving tube is threadedly coupled with second driving shaft, and the drive rod is worn
In the driving tube and the first transmission shaft, and one end of drive rod is threadedly coupled with first transmission shaft, drive rod it is another
The driving tube is stretched out in one end.
2. the operating mechanism of arc fusion device as described in claim 1, which is characterized in that further include setting handle with it is orthopedic
Slip pipe between pipe and casing, the slip pipe is set in outside the driving tube and one end of slip pipe is connect with the handle, described
Casing is set in outside the slip pipe and is slidably matched with the slip pipe, and the orthopedic pipe connects with the one end of described sleeve pipe far from handle
Connect, described sleeve pipe is equipped with positioning component, the slip pipe outer surface be equipped with the first locating slot for coordinate with the positioning component and
Second locating slot.
3. the operating mechanism of arc fusion device as claimed in claim 2, which is characterized in that the positioning component includes positioning column
And the spring being arranged in positioning column, the positioning column are embedded in described sleeve pipe, the outer spring end is connected with card bead, institute
Card bead is stated to match with first locating slot, the second locating slot.
4. the operating mechanism of arc fusion device as claimed in claim 2, which is characterized in that the orthopedic pipe is hollow tube,
Endoporus is square hole, and the rod segment of the orthopedic pipe and casing connection is cylindrical section, and the rod segment far from casing is square tube section.
5. the operating mechanism of arc fusion device as claimed in claim 2, which is characterized in that the slip pipe close to orthopedic pipe one
End is equipped with the limit shaft shoulder, and described sleeve pipe is equipped with flange close to one end inner surface of handle, and the flange is equipped with along casing radial direction
The card slot of direction arrangement, the positioning component is arranged in the card slot, when the positioning component slides into the second locating slot,
The flange is against on the limit shaft shoulder.
6. the operating mechanism of arc fusion device as described in claim 1, which is characterized in that further include guide pipe, the guiding
Pipe sleeve is located at outside the driving tube and one end of guide pipe is connect with the handle, and the orthopedic pipe sleeve is located at outside the guide pipe
And it is slidably connected with the guide pipe.
7. such as the operating mechanism of claim 1 to 6 any one of them arc fusion device, which is characterized in that further include pointer spiral shell
Mother, the pointer nut is arranged in handle, and pointer nut is threadedly coupled with first transmission shaft, is opened up on the handle
There is observation window corresponding with pointer nut travel range.
8. the operating mechanism of arc fusion device as claimed in claim 7, which is characterized in that the pointer nut is rectangular spiral shell
Mother, is equipped in the handle and the matched rectangular cavity of the square nut.
9. the operating mechanism of arc fusion device as claimed in claim 7, which is characterized in that further include closure nut, described
One transmission shaft includes sequentially connected cooperation section, limit section, rotational segment and twist section, the cooperation section outer surface equipped with it is described
The external screw thread of pointer nut cooperation, cooperation section inner surface are equipped with the internal thread coordinated with the drive rod, and the cooperation Duan Yuan
One end from limit section is connect with the second driving shaft, and the closure nut is set in the rotational segment outside and closure nut
End face is connected to described limit section one end, and closure nut is detachably connected with the handle.
10. the operating mechanism of arc fusion device as claimed in claim 9, which is characterized in that the closure nut includes being connected
The extending portion connect and abutting part, the outer diameter of the abutting part are more than the outer diameter of the extending portion, and the extending portion is located at the hand
It is connect in handle and with handle threads, the end face that the abutting part is connect with extending portion is connected on the end face of the handle, described
The through-hole coordinated with the rotational segment is offered on closure nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610796129.7A CN106420121B (en) | 2016-08-31 | 2016-08-31 | The operating mechanism of arc fusion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610796129.7A CN106420121B (en) | 2016-08-31 | 2016-08-31 | The operating mechanism of arc fusion device |
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| CN106420121A CN106420121A (en) | 2017-02-22 |
| CN106420121B true CN106420121B (en) | 2018-09-14 |
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| US20060229627A1 (en) * | 2004-10-29 | 2006-10-12 | Hunt Margaret M | Variable angle spinal surgery instrument |
| WO2009120618A2 (en) * | 2008-03-24 | 2009-10-01 | Lanx, Inc. | Expandable spinal interbody cage and methods |
| CN102670335A (en) * | 2011-03-11 | 2012-09-19 | 镱钛科技股份有限公司 | Spinal surgery tool |
| BR112015029573A2 (en) * | 2013-05-29 | 2017-07-25 | Spinal Simplicity Llc | instrument for insertion of an interspinous process implant |
| CN104116552B (en) * | 2014-08-04 | 2017-01-25 | 上海三友医疗器械股份有限公司 | Intervertebral fusion device and installation tool thereof |
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