CN202096280U - Bone grafting instrument for fractured vertebra - Google Patents
Bone grafting instrument for fractured vertebra Download PDFInfo
- Publication number
- CN202096280U CN202096280U CN2011201664834U CN201120166483U CN202096280U CN 202096280 U CN202096280 U CN 202096280U CN 2011201664834 U CN2011201664834 U CN 2011201664834U CN 201120166483 U CN201120166483 U CN 201120166483U CN 202096280 U CN202096280 U CN 202096280U
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- China
- Prior art keywords
- bone grafting
- funnel
- vertebra
- depressed area
- bone
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- Expired - Fee Related
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Abstract
The utility model relates to a bone grafting instrument for fractured vertebra, which relates to an orthopedic operation auxiliary instrument. The bone grafting instrument comprises a bone grafting funnel and an ejector bar. A head of the bone grafting funnel is composed of recessed areas in butt joint with each other, the bottom of the first recessed area is communicated with a tubular body of the bone grafting funnel, the first recessed area and the second recessed area are partitioned by a bulge lower than the peripheral wall, a slim rod-like body extends from the front end of a handle of the ejector bar, a baffle plate radially and outwardly extending is arranged on the outer periphery of the body of the bone grafting funnel at a position 4cm away from the lower end of the funnel, and a plurality of graduation lines are arranged on the body of the ejector bar. The bone grafting instrument is capable of preventing blood vessels in front of the vertebra from being mistakenly injured, and entry depth of the body of the ejector bar into the vertebra through the body of the bone grafting funnel can be controlled so that a bone implant can be guaranteed to be evenly grafted into an anterior-mid column of the fractured vertebra.
Description
Technical field
This utility model relates to a kind of bone surgery assistive device.
Background technology
In recent years, along with the growth of factors such as high-energy damage, high falling wound and aged tendency of population, spinal fracture becomes common fracture, and spinal fracture accounts for 5%～6% of whole body fracture according to statistics.Because breast waist section special anatomical characteristics, lumbar vertebra compression fracture accounts for spinal fracture 30%～50%, and is the trend that increases gradually.
According to clinical score,, generally adopt way of escape adjacent vertebral bodies pedicle nail to strut fixation for impassivity damage and complete compressibility or the burst lumbar vertebra compression fracture in rear portion ligament complex (PLC).But; The adjacent pedicle nail of the simple row of such fracture struts fixation for treatment; Hinder in the vertebra and can appearance " eggshell appearance " change, the dissection height of the preceding center pillar of efficient recovery vertebral body can not be arranged, and cause complication such as postoperative broken nail, screw loosening, bending, kyphosis deformity to take place easily; Especially after removing internal fixation, hinder the vertebra vertebral height and possibly occur losing once more, thereby influenced operative effect.So bone grafting in hindering vertebra pedicle of vertebral arch vertebral body is filled and is hindered the vertebra space, rebuild and hinder the preceding center pillar of vertebra, prevent to subside once more in the vertebral body recovery process, become the standardization operation of such fracture.
International ASIF (Arbeitsge-meinschaft fur Osteosyn-thesesfragen is called for short " AO ") recommends to use hinders the vertebra bone grafting apparatus, and as shown in Figure 1: it is made up of bone grafting funnel 1 and top rod 2.Bone grafting funnel 1 is " high-heel shoes " shape; Its head 11 is made up of the depressed area 111,112 of two adjacency; Wherein the bottom of first depressed area 111 is connected with these bone grafting funnel 10 piped bodies 12, is separated by a protrusion 114 that is lower than peripheral side wall 113 between first depressed area 111 and second depressed area 112.Lever 21 front ends of top rod 2 extend the body 22 of elongated rod-shaped.During use, should the body 12 of funnel 1 be inserted in the zone shown in dotted lines in Figure 2.In first depressed area 111 of the bone grafting thing being put into bone grafting funnel 1 and second depressed area 112; With the body 22 of top rod 2 body 12 of the bone grafting thing jacking bone grafting funnel 1 in first depressed area 111 is also further sent into the patient and hinder in the vertebra pedicle of vertebral arch vertebral body, fill and hinder the vertebra space; If the bone grafting thing is not enough in first depressed area 111; The body 22 of reuse top rod 2 is dialled in the bone grafting thing in second depressed area 112 in first depressed area 111; Continuation is with the body of these bone grafting thing jacking bone grafting funnels 1 12 and further send into the patient and hinder in the vertebra pedicle of vertebral arch vertebral body, fills and hinders the vertebra space.But the body 12 of unpredictable funnel 1 gets into the degree of depth of vertebral body in practical operation, and the body 12 of funnel 1 inserted dark, possibly injure vertebral body the place ahead blood vessel.In addition, the body 22 that also is difficult to control top rod 2 in the art gets into the degree of depth of vertebral bodys through the body 12 of bone grafting funnel 1, and the bone grafting thing is difficult to evenly implant and hinders center pillar before the vertebra like this, crosses as if bone grafting to cause vertebral body the place ahead seepage deeply.
The utility model content
This utility model aims to provide a kind of vertebra bone grafting apparatus of hindering, and it can prevent to injure vertebral body the place ahead blood vessel, and can control the degree of depth of the body of top rod through the body entering vertebral body of bone grafting funnel.
The technical scheme of this utility model is: a kind of vertebra bone grafting apparatus of hindering, form by bone grafting funnel and top rod; The head of bone grafting funnel is made up of the depressed area of two adjacency, and wherein the bottom of first depressed area is connected with the piped body of this bone grafting funnel, is separated by a protrusion that is lower than peripheral side wall between first depressed area and second depressed area; The lever front end of top rod extends the body of elongated rod-shaped; 4 centimeters are provided with the baffle plate that extends to radial outside to the body periphery of this bone grafting funnel apart from the lower end; The body of this top rod is provided with many graduation marks.
See also Fig. 2: to be the bone grafting funnel get into the path of vertebral body 91 to dotted portion between spinous process 92 and two pedicles of vertebral arch 93.C is the degree of depth that bone grafting funnel body gets into vertebral body 91, and a is the degree of depth of the body entering vertebral body 91 of top rod, and b is the total length of vertebral body 91.Chinese's breast lumbar vertebra (breast 10 vertebral bodys to waist 2 vertebral bodys) b is about 31.12mm～40.28mm.Special construction according to the Chinese vertebral body; When the body insertion patient of bone grafting funnel hinders between the vertebra pedicle of vertebral arch 93; Utilize baffle plate to hinder vertebra pedicle of vertebral arch 93 against the patient, the body of control bone grafting funnel inserts the degree of depth that the patient hinders vertebra pedicle of vertebral arch vertebral body 91, can prevent to injure vertebral body 91 the place ahead blood vessels.Utilize each graduation mark and the relativeness of bottom, bone grafting funnel first depressed area with bone grafting funnel body intersection on the body of top rod, the body that can control the top rod gets into the degree of depth of vertebral body 91 through the body of funnel, the bone grafting thing is evenly implanted hindered the preceding center pillar of vertebra.
The body total length of said bone grafting funnel is 15 centimetres, and the body total length of said top rod is 16 centimetres.The body of top rod can suitably get into the preceding center pillar of vertebral body like this; Can avoid bone grafting to cause vertebral body the place ahead seepage excessively deeply when solid bone grafting uniform particles being implanted hinder before the vertebra center pillar; Bone-grafting material gets into problems such as canalis spinalis, also can carry out the bilateral bone grafting in the art, guarantees that the bone grafting amount is sufficient.
The bore of said bone grafting funnel body is 4 millimeters, and the diameter of said top barred body portion is 3 millimeters.The bore of bone grafting funnel body is little, and external diameter of pipe is corresponding less, is fit to the special construction of Chinese vertebral body; But this bore yardstick applying solid bone grafting granule.
This utility model is hindered the vertebra bone grafting apparatus, adopt above-mentioned structure prevent the bone grafting funnel body and with the body of top rod inserted dark, simple to operate, the safety of bone grafting, the blood vessel in interior nerve, dural sac and the vertebral body the place ahead of easy damaged vertebra joint.Its additional structure is few, and fringe cost is low, is easy to promotion and implementation.
Description of drawings
Fig. 1 is existing structural representation of hindering the vertebra bone grafting apparatus.
Fig. 2 is the sketch map of Chinese's pedicle of vertebral arch vertebral body.
Fig. 3 hinders the structural representation of an embodiment of vertebra bone grafting apparatus for this utility model.
Fig. 4 is the structural representation of looking up of bone grafting funnel among Fig. 3 embodiment.
The specific embodiment
One, embodiment one
This utility model is hindered the structure of an embodiment of vertebra bone grafting apparatus, and is as shown in Figure 3.This is hindered the vertebra bone grafting apparatus and is made up of bone grafting funnel 10 and top rod 20.
Please referring to Fig. 4: the head 110 of bone grafting funnel 10 is made up of the depressed area 1110,1120 of two adjacency; Wherein the bottom of first depressed area 1110 is connected with the piped body 120 of this bone grafting funnel, is separated by a protrusion 1130 that is lower than peripheral side wall 1140 between first depressed area 1110 and second depressed area 1120.Head 110 length overalls of bone grafting funnel 10 are 13 centimetres, and the width of first depressed area 1110 is 7 centimetres, and the width of second depressed area 1120 is 5.7 centimetres.Body 120 total lengths of bone grafting funnel 10 are 15 centimetres, and the bore of body 120 is 4 millimeters.4 centimeters are provided with the baffle plate 130 that extends to radial outside to body 120 peripheries of bone grafting funnel 10 apart from the lower end; The diameter of baffle plate 130 is 2 centimetres.
Lever 210 front ends of top rod 20 extend the body 220 of elongated rod-shaped; The body 220 of top rod 20 is provided with many graduation marks 2210, above distance between every lattice graduation mark be 1 centimetre.Body 220 total lengths of top rod 20 are 16 centimetres, and diameter is 3 millimeters.
During use; The body 120 of bone grafting funnel 10 gets into vertebral body 91 between spinous process shown in Figure 2 92 and two pedicles of vertebral arch 93; When the body 120 insertion patients of bone grafting funnel 10 hinder between the vertebra pedicle of vertebral arch 93; Baffle plate 130 is hindered vertebra pedicle of vertebral arch 93 against the patient, 1.5 centimetres～1.8 centimetres of Chinese's breast waist section pedicle of vertebral arch length average out to, and the baffle plate 130 of bone grafting funnel 10 bodies 120 apart from the lower end 4 centimetres; So about 2.5 centimetres of the effective length in the body 120 entering vertebral bodys 91 of bone grafting funnel 10 has prevented that the body 120 of bone grafting funnel 10 from inserting dark problem.Then; Solid bone grafting granule is put into first depressed area 1110 and second depressed area 1120 of bone grafting funnel 10; With the body 220 of top rod 20 body 120 of the solid bone grafting granule jacking bone grafting funnel 10 in first depressed area 1110 is also further sent into the patient and hinder in the vertebra pedicle of vertebral arch vertebral body 91, fill and hinder the vertebra space; If solid bone grafting granule is not enough in first depressed area 1110; The body 220 of reuse top rod 20 is dialled in the solid bone grafting granule in second depressed area 1120 in first depressed area 1110; Continuation is hindered the body 120 and the further implantation patient of these solid bone grafting granule jacking bone grafting funnels 10 in the vertebra pedicle of vertebral arch vertebral body 91, fills and hinders the vertebra space.Owing to body 220 length of pushing up rod 20 are 16cm, body 120 length of bone grafting funnel 10 are 15 centimetres, and the effective length of the body 220 entering vertebral bodys 91 of top rod 20 is about 3.5 centimetres like this; Can reach the preceding center pillar position of vertebral body 91; Solid bone grafting granule can evenly be implanted and hinder the preceding center pillar of vertebra like this, can avoid bone grafting to cause vertebral body 91 the place ahead seepages excessively deeply simultaneously, and bone-grafting material gets into problems such as canalis spinalis; Also can carry out the bilateral bone grafting in the art, guarantee that the bone grafting amount is sufficient.Simple to operate, the safety of whole bone grafting, the not blood vessel in nerve, dural sac and the vertebral body the place ahead in the easy damaged vertebra joint.
The above is merely this utility model preferred embodiment, does not limit the scope that this utility model is implemented with this, and the equivalence of doing according to the technical scheme and the description of this utility model changes and modification, all should belong to the scope that this utility model is contained.
Claims (3)
1. hinder the vertebra bone grafting apparatus for one kind, form by bone grafting funnel and top rod; The head of bone grafting funnel is made up of the depressed area of two adjacency, and wherein the bottom of first depressed area is connected with the piped body of this bone grafting funnel, is separated by a protrusion that is lower than peripheral side wall between first depressed area and second depressed area; The lever front end of top rod extends the body of elongated rod-shaped; It is characterized in that: 4 centimeters are provided with the baffle plate that extends to radial outside to the body periphery of this bone grafting funnel apart from the lower end; The body of this top rod is provided with many graduation marks.
2. a kind of vertebra bone grafting apparatus of hindering according to claim 1, it is characterized in that: the body total length of said bone grafting funnel is 15 centimetres, the diameter of baffle plate is that the body total length of 2 centimetres of said top rods is 16 centimetres.
3. a kind of vertebra bone grafting apparatus of hindering according to claim 2, it is characterized in that: the bore of said bone grafting funnel body is 4 millimeters, the diameter of said top barred body portion is 3 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664834U CN202096280U (en) | 2011-05-23 | 2011-05-23 | Bone grafting instrument for fractured vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664834U CN202096280U (en) | 2011-05-23 | 2011-05-23 | Bone grafting instrument for fractured vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202096280U true CN202096280U (en) | 2012-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201664834U Expired - Fee Related CN202096280U (en) | 2011-05-23 | 2011-05-23 | Bone grafting instrument for fractured vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202096280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105840A (en) * | 2015-09-29 | 2015-12-02 | 吴占勇 | Lumbar vertebra intervertebral bone graft funnel capable of being quickly filled |
| CN106264701A (en) * | 2016-08-05 | 2017-01-04 | 王成斌 | Fracture of femoral neck bone grafting instrument |
| JP2018102525A (en) * | 2016-12-26 | 2018-07-05 | 内田 正志 | Aggregate feeding funnel and pusher rod |
-
2011
- 2011-05-23 CN CN2011201664834U patent/CN202096280U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105840A (en) * | 2015-09-29 | 2015-12-02 | 吴占勇 | Lumbar vertebra intervertebral bone graft funnel capable of being quickly filled |
| CN105105840B (en) * | 2015-09-29 | 2017-12-12 | 吴占勇 | It is a kind of can Fast Filling lumbar intervertebral bone grafting funnel |
| CN106264701A (en) * | 2016-08-05 | 2017-01-04 | 王成斌 | Fracture of femoral neck bone grafting instrument |
| JP2018102525A (en) * | 2016-12-26 | 2018-07-05 | 内田 正志 | Aggregate feeding funnel and pusher rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |