CN208243665U - One kind can strut type Invasive lumbar fusion device - Google Patents
One kind can strut type Invasive lumbar fusion device Download PDFInfo
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- CN208243665U CN208243665U CN201720865530.1U CN201720865530U CN208243665U CN 208243665 U CN208243665 U CN 208243665U CN 201720865530 U CN201720865530 U CN 201720865530U CN 208243665 U CN208243665 U CN 208243665U
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Abstract
The utility model relates to medical instrument manufacture technology fields, specifically one kind can strut type Invasive lumbar fusion device, it is characterized in that the fusion device is made of fusion contact mechanism and driving spreading mechanism, fusion contact mechanism is made of upper device seat and lower device seat, the driving placement mechanism is by adjusting screw rod, left adjusting block, right adjusting block composition, left adjusting block and right adjusting block is driven to move inward simultaneously by the rotation of adjusting screw rod, and then it pulls open the distance between device seat and lower device seat and realizes strutting for fusion device, with the distracting force using Invasive lumbar fusion device, restore vertebra section height and tension, it realizes and releases compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, the advantages that ensureing spinal stabilization.
Description
Technical field
The present invention relates to medical instrument manufacture technology field, specifically a kind of distracting force using Invasive lumbar fusion device,
Restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, ensure
Spinal stabilization struts type Invasive lumbar fusion device.
Background technique
It is well known that backbone retrogression is common on Orthopedic Clinical, degeneration of intervertebral disc common are, spinal canal stenosis,
Spondylolisthesis, oppressing spinal cord or nerve root person often needs operative treatment, thoroughly releases compressing, restores vertebra physiological camber, ensures ridge
Column is stablized.Another part deformity of spine, wound, tumour, reprocess operation and infected patient sometimes and also need row interbody fusion with
Stablize lumbar motion segment.Invasive lumbar fusion device has a better effect for the above spinal disease, easy to operate, easy to use, fusion
Rate is high, the complication of no bone grafting fusion, through it is commonly used with it is clinical.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide a kind of distracting force using Invasive lumbar fusion device,
Restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, ensure
Spinal stabilization struts type Invasive lumbar fusion device.
The technical solution adopted by the present invention to solve the technical problems is:
One kind can strut type Invasive lumbar fusion device, it is characterised in that the fusion device is by fusion contact mechanism and driving spreading mechanism
Composition, the fusion contact mechanism is made of upper device seat and lower device seat, the lower section both ends of the upper device seat be respectively equipped with to
The inclined upper wedge surface in two sides, the middle part of upper wedge surface are equipped with the upper wedge slot parallel with upper wedge surface, the lower section front and back of the upper device seat
Middle side part is respectively equipped with positioning seat, and the upper device seat of the upper positioning seat medial surface is equipped with insertion groove, upper positioning seat lower section
Middle part is equipped with the lower placement vallecular cavity for being used to place driving spreading mechanism of the both ends open of bar shaped, the top two of the lower device seat
End is respectively equipped with inclined with the symmetrical lower wedge surface of upper wedge surface to two sides, and the middle part of lower wedge surface is equipped with and the upper symmetrical hyposphene of wedge slot
Slot, the top front and back sides middle part of the lower device seat are respectively equipped with the insertion seat with insertion groove cooperation, the insertion seat
The lower device seat in outside is equipped with the locating slot for the insertion of upper positioning seat, and the upper center of the lower device seat is equipped with and lower placing groove
The upper placement vallecular cavity that chamber matches, lower placement vallecular cavity match to form driving spreading mechanism placed cavity, driving with upper placement vallecular cavity
Driving placement mechanism is equipped in mechanism placed cavity, the driving placement mechanism is by adjusting screw rod, left adjusting block, right adjusting block group
At, be respectively equipped with above the left adjusting block and right adjusting block and in upper device seat upper wedge surface cooperation side on wedge surface, side
Upper wedge surface is equipped with wedge block on the side that matches with upper wedge slot, the left adjusting block and right adjusting block be respectively arranged below with
The side lower wedge surface of lower wedge surface cooperation in lower device seat, side lower wedge surface is equipped with wedge block under the side matched with hyposphene slot, described
The middle part of left adjusting block and right adjusting block, which is equipped with, adjusts threaded hole, and the adjusting screw rod left side is equipped with the outer spiral shell rotated in the forward direction
Line, the right side of adjusting screw rod are equipped with the external screw thread reversely rotated, and the left end of adjusting screw rod is connected with left adjusting block, adjust spiral shell
The right end of bar passes through driving spreading mechanism placed cavity and is connected with right adjusting block, drives left adjusting block by the rotation of adjusting screw rod
Move inward simultaneously with right adjusting block, and then pulls open the distance between device seat and lower device seat and realize strutting for fusion device.
Positioning groove is equipped on the inside of the upper positioning seat of upper device seat of the present invention, the lower device seat is inserted into the outer of seat
Side is equipped with the positioning convex platform matched with positioning groove, and the mating reaction of positioning convex platform and positioning groove makes device seat and lower device seat
It moves up in parallel, guarantees the stability of structure.
It is respectively equipped in the middle part of the middle part of upper device seat of the present invention and lower device seat and driving spreading mechanism placed cavity phase
The plant hole of connection, facilitates bone grafting object to blend with surrounding tissue, so that Invasive lumbar fusion device be made to be easier to Bony union.
The front and rear sides of upper device seat of the present invention and the front and rear sides of lower device seat are respectively equipped with and driving spreading mechanism
The bar shaped circular hole that placed cavity is connected, facilitates bone grafting object to blend with surrounding tissue, melts so that Invasive lumbar fusion device be made to be easier to bone
It closes.
The upper surface of upper device seat of the present invention and the lower end surface of lower device seat are respectively equipped with jagged anti-slop serrations, this is anti-
Slip teeth matches with corpus vertebrae face, prevents fusion device from shifting.
Upper wedge slot in upper device seat of the present invention is set as dovetail groove, on the side of left adjusting block and right adjusting block on wedge surface
Equipped with wedge block on the dove-tail form side matched with dovetail groove, the hyposphene slot in the lower device seat is set as dovetail groove, left adjusting block
It is equipped with wedge block under the dove-tail form side matched with dovetail groove with the side lower wedge surface of right adjusting block, is connected by dovetail configuration, is protected
The compactness that device seat, lower device seat are connected with left adjusting block, right adjusting block on card prevents between structure loosely, influencing using effect.
Wedge block is set as rectangle, arc-shaped, polygon or different under wedge block, hyposphene slot, side on upper wedge slot of the present invention, side
Shape.
The present invention drives the adjusting screw rod in spreading mechanism and a left side due to upper device seat and lower device seat in fusion contact mechanism
Mating reaction between adjusting block, right adjusting block makes left adjusting block and the inside sidesway of right adjusting block by the rotation of adjusting screw rod
It is dynamic in turn to increase the distance between upper device seat and lower device seat, it realizes the effect for strutting fusion device, has and utilize Invasive lumbar fusion device
Distracting force, restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device bone
The advantages that fusion, guarantee spinal stabilization.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of upper device seat in the present invention, wherein 2-1 is top perspective view, and 2-2 is face upwarding stereogram.
Fig. 3 is the structural schematic diagram of lower device seat in the present invention, wherein 3-1 is top perspective view, and 3-2 is face upwarding stereogram.
Fig. 4 is left adjusting block structural schematic diagram.
Fig. 5 is right adjusting block structural schematic diagram.
Fig. 6 is usage state diagram of the invention, and wherein 6-1 is to strut preceding schematic diagram, and 6-2 is to strut rear schematic diagram.
Specific embodiment
The following further describes the present invention with reference to the drawings:
As shown in the picture, one kind can strut type Invasive lumbar fusion device, it is characterised in that the fusion device by fusion contact mechanism and
Spreading mechanism composition is driven, the fusion contact mechanism is made of upper device seat 1 and lower device seat 2, the lower section of the upper device seat 1
Both ends are respectively equipped with to the inclined upper wedge surface 3 in two sides, and the middle part of upper wedge surface 3 is equipped with the upper wedge slot 4 parallel with upper wedge surface 3, described
Upper device seat 1 lower section before and after middle side part be respectively equipped with positioning seat 5, set on the upper device seat 1 of 5 medial surface of upper positioning seat
There is insertion groove 6, upper 5 lower section middle part of positioning seat is equipped with the lower placing groove for being used to place driving spreading mechanism of the both ends open of bar shaped
Chamber 7, the top both ends of the lower device seat 2 are respectively equipped with, lower wedge surface 8 inclined with the symmetrical lower wedge surface 8 of upper wedge surface 3 to two sides
Middle part be equipped with the symmetrical hyposphene slot 9 of upper wedge slot 4, be respectively equipped with and insert in the middle part of the top front and back sides of the lower device seat 2
Enter the insertion seat 25 of the cooperation of slot 6, the lower device seat 2 in the outside of the insertion seat 25 is equipped with the positioning for the insertion of upper positioning seat 5
Slot 10, the upper center of the lower device seat 2 are equipped with the upper placement vallecular cavity 11 matched with lower placement vallecular cavity 7, lower placement vallecular cavity
11 match to form driving spreading mechanism placed cavity with upper placement vallecular cavity 7, and driving placement mechanism is equipped in driving mechanism placed cavity,
The driving placement mechanism is made of adjusting screw rod 12, left adjusting block 13, right adjusting block 14, the left adjusting block 13 and the right side
The top of adjusting block 14 is respectively equipped with wedge surface 15 on the side cooperated with the upper wedge surface 3 in upper device seat 1, on side wedge surface 15 be equipped with
Wedge block 16 on the side that upper wedge slot 4 matches, the left adjusting block 13 and right adjusting block 14 are respectively arranged below with and lower device seat 2
In the side lower wedge surface 17 that cooperates of lower wedge surface 8, side lower wedge surface 17 is equipped with wedge block 18 under the side that matches with hyposphene slot 9, described
Left adjusting block 13 and right adjusting block 14 middle part be equipped with adjust threaded hole 19,12 left side of adjusting screw rod be equipped with forward direction
The external screw thread of rotation, the right side of adjusting screw rod 12 are equipped with the external screw thread reversely rotated, the left end of adjusting screw rod 12 and left adjusting
Block 13 is connected, and the right end of adjusting screw rod 12 passes through driving spreading mechanism placed cavity and is connected with right adjusting block 14, passes through adjusting
The rotation of screw rod 12 drives left adjusting block 13 and right adjusting block 14 to move inward simultaneously, and then pulls open device seat 1 and lower device seat 2
The distance between realize that fusion device struts, positioning groove 20 is equipped on the inside of the upper positioning seat 5 of the upper device seat 1, it is described
The outside of the insertion seat 25 of lower device seat 2 is equipped with the positioning convex platform 21 matched with positioning groove 20, and positioning convex platform 21 and positioning are recessed
The mating reaction of slot 20 makes device seat 1 is parallel with lower device seat 2 to move up, and guarantees the stability of structure, the middle part of the upper device seat 1
It is respectively equipped with the plant hole 22 being connected with driving spreading mechanism placed cavity with the middle part of lower device seat 2, facilitates bone grafting object and week
Tissue is enclosed to blend, so that Invasive lumbar fusion device be made to be easier to Bony union, the front and rear sides of the upper device seat 1 and lower device seat 2
Front and rear sides are respectively equipped with the bar shaped circular hole 23 being connected with driving spreading mechanism placed cavity, facilitate bone grafting object and surrounding tissue phase
Fusion, so that Invasive lumbar fusion device be made to be easier to Bony union, the lower end surface difference of the upper surface of the upper device seat 1 and lower device seat 2
Equipped with jagged anti-slop serrations 24, which matches with corpus vertebrae face, prevents fusion device from shifting, the upper device seat
Upper wedge slot 4 in 1 is set as dovetail groove, and left adjusting block 13 is equipped with wedge surface 15 on the side of right adjusting block 14 and matches with dovetail groove
Dove-tail form side on wedge block 16, the hyposphene slot 9 in the lower device seat 2 is set as dovetail groove, left adjusting block 13 and right adjusting block 14
Side lower wedge surface 17 be equipped with wedge block 18 under the dove-tail form side that matches with dovetail groove, connected by dovetail configuration, device in guarantee
The compactness that seat 1, lower device seat 2 and left adjusting block 13, right adjusting block 14 connect prevents between structure loosely, influencing using effect,
Wedge block is set as rectangle, arc-shaped, polygon or abnormity under wedge block, hyposphene slot, side on the upper wedge slot, side.
At work, by rotating adjusting screw rod 12, adjusting screw rod 12 drives left adjusting block 13 and right adjusting block to the present invention
14 relatively move inwardly, and left adjusting block 12 and right adjusting block 13 keep fusion device continuous by the effect of upper wedge surface 3 and lower wedge surface 8
Parallel opening, in use, the fusion device is implanted into human body intervertenral space, being implanted into after intervertenral space makes left tune by rotating adjusting screw rod 12
Locking nub 13 and the upper device seat 1 of the drive of right adjusting block 14 and lower device seat 2, which are strutted, to be cooperated to obtain firm support with intervertebral foramen, and support is completed
After can be implanted into bone grafting object from plant hole 22 and bar shaped circular hole 23 and contact fusion with surrounding tissue, to make Invasive lumbar fusion device more
Easy Bony union, the present invention drive the adjusting spiral shell in spreading mechanism due to upper device seat 1 and lower device seat 2 in fusion contact mechanism
Mating reaction between bar 12 and left adjusting block 13, right adjusting block 14 makes left 13 He of adjusting block by the rotation of adjusting screw rod 12
Right adjusting block 14 moves inward and then increases the distance between upper device seat 1 and lower device seat 2, realizes the work for strutting fusion device
With, there is the distracting force using Invasive lumbar fusion device, restore the height of vertebra section and tension, it realizes and releases compressing, it is raw to restore vertebra
The advantages that reason curvature, Invasive lumbar fusion device Bony union, guarantee spinal stabilization.
Claims (7)
1. one kind can strut type Invasive lumbar fusion device, it is characterised in that the fusion device is by fusion contact mechanism and driving spreading mechanism group
At the fusion contact mechanism is made of upper device seat and lower device seat, and the lower section both ends of the upper device seat are respectively equipped with to two
The inclined upper wedge surface in side, the middle part of upper wedge surface are equipped with the upper wedge slot parallel with upper wedge surface, side before and after the lower section of the upper device seat
Middle part is respectively equipped with positioning seat, and the upper device seat of the upper positioning seat medial surface is equipped with insertion groove, below upper positioning seat in
Portion is equipped with the lower placement vallecular cavity for being used to place driving spreading mechanism of the both ends open of bar shaped, the top both ends of the lower device seat
It is respectively equipped with inclined with the symmetrical lower wedge surface of upper wedge surface to two sides, the middle part of lower wedge surface is equipped with and the upper symmetrical hyposphene of wedge slot
Slot, the top front and back sides middle part of the lower device seat are respectively equipped with the insertion seat with insertion groove cooperation, the insertion seat
The lower device seat in outside is equipped with the locating slot for the insertion of upper positioning seat, and the upper center of the lower device seat is equipped with and lower placing groove
The upper placement vallecular cavity that chamber matches, lower placement vallecular cavity match to form driving spreading mechanism placed cavity, driving with upper placement vallecular cavity
Driving placement mechanism is equipped in mechanism placed cavity, the driving placement mechanism is by adjusting screw rod, left adjusting block, right adjusting block group
At, be respectively equipped with above the left adjusting block and right adjusting block and in upper device seat upper wedge surface cooperation side on wedge surface, side
Upper wedge surface is equipped with wedge block on the side that matches with upper wedge slot, the left adjusting block and right adjusting block be respectively arranged below with
The side lower wedge surface of lower wedge surface cooperation in lower device seat, side lower wedge surface is equipped with wedge block under the side matched with hyposphene slot, described
The middle part of left adjusting block and right adjusting block, which is equipped with, adjusts threaded hole, and the adjusting screw rod left side is equipped with the outer spiral shell rotated in the forward direction
Line, the right side of adjusting screw rod are equipped with the external screw thread reversely rotated, and the left end of adjusting screw rod is connected with left adjusting block, adjust spiral shell
The right end of bar passes through driving spreading mechanism placed cavity and is connected with right adjusting block, drives left adjusting block by the rotation of adjusting screw rod
Move inward simultaneously with right adjusting block, and then pulls open the distance between device seat and lower device seat and realize strutting for fusion device.
2. one kind according to claim 1 can strut type Invasive lumbar fusion device, it is characterised in that the upper device seat it is upper fixed
Positioning groove is equipped on the inside of the seat of position, the outside of the insertion seat of the lower device seat is equipped with the convex matched with positioning groove
Platform, positioning convex platform and the mating reaction of positioning groove make upper device seat and lower device seat is parallel moves up.
3. one kind according to claim 1 can strut type Invasive lumbar fusion device, it is characterised in that the middle part of the upper device seat
With the plant hole for being respectively equipped in the middle part of lower device seat with driving spreading mechanism placed cavity to be connected.
4. one kind according to claim 1 can strut type Invasive lumbar fusion device, it is characterised in that the front and back of the upper device seat
Two sides and the front and rear sides of lower device seat are respectively equipped with the bar shaped circular hole being connected with driving spreading mechanism placed cavity.
5. one kind according to claim 1 can strut type Invasive lumbar fusion device, it is characterised in that the upper end of the upper device seat
Face and the lower end surface of lower device seat are respectively equipped with jagged anti-slop serrations.
6. one kind according to claim 1 can strut type Invasive lumbar fusion device, it is characterised in that upper in the upper device seat
Wedge slot is set as dovetail groove, and left adjusting block is equipped with wedge on the dove-tail form side matched with dovetail groove with wedge surface on the side of right adjusting block
Seat, the hyposphene slot in the lower device seat are set as dovetail groove, and the side lower wedge surface of left adjusting block and right adjusting block is equipped with and dovetail
Wedge block under the dove-tail form side that slot matches.
7. one kind according to claim 6 can strut type Invasive lumbar fusion device, it is characterised in that wedge on the upper wedge slot, side
Wedge block is set as rectangle, arc-shaped, polygon or abnormity under seat, hyposphene slot, side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865530.1U CN208243665U (en) | 2017-07-17 | 2017-07-17 | One kind can strut type Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865530.1U CN208243665U (en) | 2017-07-17 | 2017-07-17 | One kind can strut type Invasive lumbar fusion device |
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| Publication Number | Publication Date |
|---|---|
| CN208243665U true CN208243665U (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720865530.1U Active CN208243665U (en) | 2017-07-17 | 2017-07-17 | One kind can strut type Invasive lumbar fusion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174383A (en) * | 2017-07-17 | 2017-09-19 | 博能华医疗器械（北京）有限公司 | One kind can strut type Invasive lumbar fusion device |
| WO2021092948A1 (en) * | 2019-11-15 | 2021-05-20 | 邹丽敏 | Interbody fusion cage |
| CN115919515A (en) * | 2023-03-14 | 2023-04-07 | 中国人民解放军总医院第一医学中心 | Intervertebral prosthesis |
-
2017
- 2017-07-17 CN CN201720865530.1U patent/CN208243665U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174383A (en) * | 2017-07-17 | 2017-09-19 | 博能华医疗器械（北京）有限公司 | One kind can strut type Invasive lumbar fusion device |
| WO2021092948A1 (en) * | 2019-11-15 | 2021-05-20 | 邹丽敏 | Interbody fusion cage |
| CN115919515A (en) * | 2023-03-14 | 2023-04-07 | 中国人民解放军总医院第一医学中心 | Intervertebral prosthesis |
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