CN204274725U - TLIF fusion device - Google Patents
TLIF fusion device Download PDFInfo
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- CN204274725U CN204274725U CN201420710715.1U CN201420710715U CN204274725U CN 204274725 U CN204274725 U CN 204274725U CN 201420710715 U CN201420710715 U CN 201420710715U CN 204274725 U CN204274725 U CN 204274725U
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Abstract
The utility model discloses a kind of TLIF fusion device, comprise fusion device main body, swinging strut and backing pin, described swinging strut two ends are provided with pin hole, swinging strut cylinder is provided with the locking hole perpendicular to pin hole direction, described fusion device main body has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, described fusion device body tail section is circular arc, groove is provided with between the described upper and lower surface of fusion device body tail section, described backing pin one end is fixed in fusion device main body, the other end and pin hole matched in clearance; The wall of described groove is provided with profile of tooth bar, and described profile of tooth bar is radial radial distribution centered by swinging strut.In this utility model, TLIF fusion device adjustable rotary, directly arrives implantation position, avoids the damage to nerve root and dural sac, simplifies operating procedure, reduces operating time, reduces patient suffering.
Description
Technical field
This utility model relates to medical instruments field, particularly, relates to a kind of TLIF fusion device.
Background technology
TLIF (Transforaminal Lumbar Interbody Fusion) refers to transforaminal approach lumbar interbody fusion art.Owing to being enter from the midline incision of patient back canalis spinalis more side, the muscle that this art formula greatly reduces in operation peels off quantity, and TLIF can provide the support of front pillar and stablize, and rebuilds the normal anatomy curvature of corresponding sections, thus maintain or recover the physiological camber of lumbar vertebra entirety.
And the current fusion device for TLIF operation and implantation device thereof can not make fusion device realize adjustable rotary, need reciprocally swinging implantation device in art, to make fusion device arrive desirable implantation position.The reciprocally swinging of implantation device easily damages nerve root and dural sac, and makes TLIF operation become more complicated.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of TLIF fusion device.TLIF fusion device is rotatable, directly arrives implantation position, avoids the damage to nerve root and dural sac, simplifies operating procedure, reduces operating time, reduces patient suffering.
For solving the problem, the technical scheme that this utility model adopts is as follows:
TLIF fusion device, comprise fusion device main body, swinging strut and backing pin, described swinging strut two ends are provided with pin hole, swinging strut cylinder is provided with the locking hole perpendicular to pin hole direction, described fusion device main body has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, and described fusion device body tail section is circular arc, is provided with groove between the described upper and lower surface of fusion device body tail section, described backing pin one end is fixed in fusion device main body, the other end and pin hole matched in clearance; The wall of described groove is provided with profile of tooth bar, and described profile of tooth bar is radial radial distribution centered by swinging strut.
Preferably, female thread is provided with in described locking hole.
Described profile of tooth bar height is 0.8mm-3mm.
Preferably, be provided with backing pin hole between described groove and the upper and lower surface of fusion device main body, described backing pin comprises pin and the pin cap of integrative-structure, described pin cap and backing pin hole interference fit, described pin and pin hole matched in clearance.
Preferably, described swinging strut is polygon prism or cylinder, and described pin hole is non-through hole.
Compared to existing technology, the beneficial effects of the utility model are:
1, in this utility model, TLIF fusion device can realize original position rotation, arrives expection implantation position, avoids the damage to nerve root and dural sac, simplify operating procedure, reduce operating time, reduction patient suffering;
2, in this utility model, TLIF fusion device locking hole arranges female thread, ensures the stability that in use procedure, TLIF fusion device is connected with implantation device.
Accompanying drawing explanation
Fig. 1 is TLIF fusion device structural representation in this utility model;
Fig. 2 is TLIF fusion device agent structure schematic diagram in this utility model;
Fig. 3 be in this utility model swinging strut pin hole non-through with run through structural representation;
Fig. 4 is backing pin structural representation in this utility model;
Fig. 5 is a kind of TLIF implantation device structural representation;
Fig. 6 is check lock lever structural representation in TLIF implantation device;
Fig. 7 is rotary actuation bar structural representation in TLIF implantation device;
Fig. 8 is TLIF implantation device China and foreign countries loop bar structural representations;
Wherein, 1 be fusion device main body, 11 be profile of tooth bar, 2 be swinging strut, 21 be pin hole, 22 be locking hole, 3 be backing pin, 31 be pin cap, 32 be pin, 4 be backing pin hole, 5 be check lock lever, 501 be the check lock lever body of rod, 502 for locking post, 503 be tight lock part, 504 be shank, 6 be rotary actuation bar, 601 be rotary actuation club shaft, 602 be rotating part, 7 be outer loop bar, 701 be overcoat club shaft, 702 be support, 703 be accommodation space, 8 be handle, 801 for spacer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
As Figure 1-4, for TLIF fusion device, comprise fusion device main body 1, swinging strut 2 and backing pin 3, swinging strut 2 two ends are provided with pin hole 21, swinging strut 2 cylinder is provided with the locking hole 22 perpendicular to pin hole 21 direction, described fusion device main body 1 has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, fusion device main body 1 afterbody is circular arc, fusion device main body 1 afterbody is provided with groove between upper and lower surface, backing pin 3 one end is fixed in fusion device main body 1, the other end and pin hole 21 matched in clearance; The wall of described groove is provided with profile of tooth bar 11, and profile of tooth bar 11 is radial radial distribution centered by swinging strut 2.
As viewed in figures 5-8, be implantation device, comprise check lock lever 5 and rotary actuation bar 6, check lock lever 5 comprises the check lock lever body of rod 501, tight lock part 503, shank 504, and the check lock lever body of rod 501 front end is provided with the locking post 502 coordinated with locking hole 22; Rotary actuation bar 6 is hollow structure, comprises rotary actuation club shaft 601 and rotating part 602, and rotary actuation club shaft 601 front end is provided with the tooth engaged with profile of tooth bar 11, rotary actuation bar 6 be socketed on the check lock lever body of rod 501 with the check lock lever body of rod 501 matched in clearance.
Embodiment 1
TLIF fusion device, comprise fusion device main body 1, swinging strut 2 and backing pin 3, swinging strut 2 is polygon prism, swinging strut 2 two ends are provided with pin hole 21, swinging strut 2 cylinder is provided with the locking hole 22 perpendicular to pin hole 21 direction, fusion device main body 1 has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, fusion device main body 1 afterbody is circular arc, on fusion device main body 1 afterbody, groove is provided with between lower surface, in described groove and fusion device main body, backing pin hole 4 is provided with between lower surface, backing pin 3 comprises pin 32 and the pin cap 31 of integrative-structure, pin cap 31 and backing pin hole 4 interference fit, pin 32 and pin hole 21 matched in clearance, the wall of described groove is provided with profile of tooth bar 11, and profile of tooth bar 11 is radial radial distribution centered by swinging strut 2, and profile of tooth bar 11 is highly 0.8mm.
Implantation device, comprises check lock lever 5, rotary actuation bar 6, outer loop bar 7 and handle 8, and check lock lever 5 comprises the check lock lever body of rod 501, tight lock part 503, shank 504, and the check lock lever body of rod 501 front end is provided with the locking post 502 coordinated with locking hole 22; Rotary actuation bar 6 is hollow structure, comprises rotary actuation club shaft 601 and rotating part 602, and rotary actuation club shaft 601 front end is provided with the tooth engaged with profile of tooth bar 11, rotary actuation bar 6 be socketed on the check lock lever body of rod 501 with the check lock lever body of rod 501 matched in clearance; Outer loop bar 7 is hollow structure, comprises overcoat club shaft 701 and support 702, outer loop bar 7 be socketed on rotary actuation club shaft 601 with rotary actuation club shaft 601 matched in clearance; Support 702 inside is provided with accommodation space 703, and the upper and lower surface of accommodation space 703 is plane, and in order to indicate the upper and lower surface of fusion device main body 1, rotating part 602 is arranged in accommodation space 703, with support 702 matched in clearance; Handle 8 is socketed on overcoat club shaft 701, before being positioned at support 702; Handle 8 sidewall is provided with spacer 801, and spacer 801 is parallel with the upper and lower surface of support 702 accommodation space 703.
Embodiment 2
TLIF fusion device, comprise fusion device main body 1, swinging strut 2 and backing pin 3, swinging strut 2 is cylinder, and swinging strut 2 two ends are provided with pin hole 21, swinging strut 2 cylinder is provided with the locking hole 22 perpendicular to pin hole 21 direction, in locking hole 22, is provided with female thread; Fusion device main body 1 has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, fusion device main body 1 afterbody is circular arc, fusion device main body 1 afterbody is provided with groove between upper and lower surface, backing pin hole 4 is provided with between described groove and the upper and lower surface of fusion device main body, backing pin 3 comprises pin 32 and the pin cap 31 of integrative-structure, pin cap 31 and backing pin hole 4 interference fit, pin 32 and pin hole 21 matched in clearance; The wall of described groove is provided with profile of tooth bar 11, and profile of tooth bar 11 is radial radial distribution centered by swinging strut 2, and profile of tooth bar 11 is highly 3mm.
Implantation device, comprise check lock lever 5, rotary actuation bar 6, outer loop bar 7 and handle 8, check lock lever 5 comprises the check lock lever body of rod 501, tight lock part 503, shank 504, and the check lock lever body of rod 501 front end is provided with the locking post 502 coordinated with locking hole 22, and locking post 502 has been provided with external screw thread; Rotary actuation bar 6 is hollow structure, comprises rotary actuation club shaft 601 and rotating part 602, and rotary actuation club shaft 601 front end is provided with the tooth engaged with profile of tooth bar 11, rotary actuation bar 6 be socketed on the check lock lever body of rod 501 with the check lock lever body of rod 501 matched in clearance; Outer loop bar 7 is hollow structure, comprises overcoat club shaft 701 and support 702, outer loop bar 7 be socketed on rotary actuation club shaft 601 with rotary actuation club shaft 601 matched in clearance; Support 702 inside is provided with accommodation space 703, the upper and lower surface of accommodation space 703 is plane, in order to indicate the upper and lower surface of fusion device main body 1, rotating part 602 is arranged in accommodation space 703, with support 702 matched in clearance, overcoat club shaft 701 front end is provided with circular arc indent, and described circular arc indent and fusion device main body 1 afterbody circular arc match; Handle 8 is socketed on overcoat club shaft 701, before being positioned at support 702; Handle 8 sidewall is provided with spacer 801, and spacer 801 is parallel with the upper and lower surface of support 702 accommodation space 703.
During use, implantation device check lock lever 5 being locked post 502 is locked in TLIF fusion device swinging strut 2 locking hole 22, and adjust implantation device and TLIF fusion device direction, make spacer 801, the upper and lower surface of accommodation space 703 and TLIF fusion device upper and lower surface keeping parallelism, then before utilizing rotary actuation club shaft 601, end tooth engages with profile of tooth bar 11, rotate rotating part 602, the rotation of TLIF fusion device horizontal direction can be realized.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of this utility model claim.
Claims (5)
1.TLIF fusion device, it is characterized in that, comprise fusion device main body (1), swinging strut (2) and backing pin (3), described swinging strut (2) two ends are provided with pin hole (21), swinging strut (2) cylinder is provided with the locking hole (22) perpendicular to pin hole (21) direction, described fusion device main body (1) has the upper surface contacted with top vertebral body, the lower surface contacted with bottom vertebral body, described fusion device main body (1) afterbody is circular arc, on described fusion device main body (1) afterbody, groove is provided with between lower surface, described backing pin (3) one end is fixed in fusion device main body (1), the other end and pin hole (21) matched in clearance, the wall of described groove is provided with profile of tooth bar (11), the radial radial distribution centered by swinging strut (2) of described profile of tooth bar (11).
2. TLIF fusion device as claimed in claim 1, it is characterized in that, described locking hole is provided with female thread in (22).
3. TLIF fusion device as claimed in claim 1, it is characterized in that, described profile of tooth bar (11) is highly 0.8mm-3mm.
4. TLIF fusion device as claimed in claim 1, it is characterized in that, backing pin hole (4) is provided with between described groove and the upper and lower surface of fusion device main body, described backing pin (3) comprises pin (32) and the pin cap (31) of integrative-structure, described pin cap (31) and backing pin hole (4) interference fit, described pin (32) and pin hole (21) matched in clearance.
5. the TLIF fusion device as described in any one of claim 1-4, is characterized in that, described swinging strut (2) is polygon prism or cylinder, and described pin hole (21) is non-through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710715.1U CN204274725U (en) | 2014-11-24 | 2014-11-24 | TLIF fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710715.1U CN204274725U (en) | 2014-11-24 | 2014-11-24 | TLIF fusion device |
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| Publication Number | Publication Date |
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| CN204274725U true CN204274725U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710715.1U Active CN204274725U (en) | 2014-11-24 | 2014-11-24 | TLIF fusion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490495A (en) * | 2014-11-24 | 2015-04-08 | 创生医疗器械（中国）有限公司 | TLIF (transforaminal lumbar interbody fusion) fusion apparatus |
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2014
- 2014-11-24 CN CN201420710715.1U patent/CN204274725U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490495A (en) * | 2014-11-24 | 2015-04-08 | 创生医疗器械（中国）有限公司 | TLIF (transforaminal lumbar interbody fusion) fusion apparatus |
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