CN206167021U - Femoral neck fracture bone grafting instrument - Google Patents
Femoral neck fracture bone grafting instrument Download PDFInfo
- Publication number
- CN206167021U CN206167021U CN201620843036.0U CN201620843036U CN206167021U CN 206167021 U CN206167021 U CN 206167021U CN 201620843036 U CN201620843036 U CN 201620843036U CN 206167021 U CN206167021 U CN 206167021U
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- pin
- bone grafting
- fracture
- femoral neck
- disclosing
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Abstract
The utility model relates to a femoral neck fracture bone grafting instrument belongs to medical instrument. The utility model provides a femoral neck fracture bone grafting instrument, including a middle guide section of thick bamboo that be the through -hole, the front end of a guide section of thick bamboo establish with hollow screw's outer hex bolts complex in the hexagonal, the rear end of a guide section of thick bamboo is established the fender of epitaxial a week and is personally experienced sth. Part of the body, the inner diameter of through hole of a guide section of thick bamboo is measure -alike with hollow screw's internal diameter, still including disclosing the needle, the globular groove of indent is established to the front end of disclosing the needle, the diameter of disclosing the needle is less than a guide section of thick bamboo and hollow screw's internal diameter, and the length of disclosing the needle is greater than hollow screw length and guide tube length degree sum, and the rear portion outer surface who discloses the needle is equipped with the scale.
Description
Technical field
The present invention relates to a kind of fracture of femoral neck bone grafting instrument, belongs to medical apparatus and instruments.
Background technology
Fracture of femoral neck is to plant a common fracture, and the modus operandi of clinical treatment fracture of femoral neck is more, for the age
Shift-type patients with fracture of neck below 65 years old, fixation in closed reduction is first-selected therapeutic modality.If patient is compared with year
Gently, it is not necessary to take hip replacement surgery, retain femoral head, often performed the operation using reduction fixation.
Reduction fixation is performed the operation.Mode be divided into two kinds：1. open reduction and Kirschner wire fixation, advantage be can be to fracture of femoral neck at
Rear carries out bone grafting, and the operation technique visual field is big, and it is easy to reset；Have the disadvantage that Posterior approach is big to angiolysis, be unfavorable for what is fractured
Healing, which cannot reduce the risk of ischemic necrosis of femoral head.2. closed reduction, advantage is not destroy the blood vessel at rear, is conducive to
The healing of fracture reduces ischemic necrosis of femoral head；Have the disadvantage closed reduction cannot bone grafting, fracture defect cannot make up, increase suffer from
Person's bed rest time, plays the healing of fracture, bone ischemic necrosiss index and does not often beat target.
Anamnesis is consulted, fracture disunion is relevant with many factors, one of key factor is that the fracture Dragon Boat Festival is good
Contact, by analyzing CT examination before operation in patients, the bone piece that there is broken bone piece, fragmentation at patients with fracture of neck neck of femur rear is caused
Neck of femur rear Cranial defect.In the past open reduction internal fixation, autologous bone is implanted into bone by rear side approach by us
Folding end, hollow screw pressurization are fixed, and this operation method damages larger；And often use in closed reduction at present and fix, but nothing
Method is in the disconnected bone grafting of fracture.
The content of the invention
The present invention provides a kind of fracture of femoral neck bone grafting instrument, and the bone grafting solved in fracture closed reduction internal fixation operation is not square
Just problem.
For achieving the above object, the technical solution used in the present invention is：
Fracture of femoral neck bone grafting instrument, including the middle guiding cylinder for through hole, guide the front end of cylinder to set outer with hollow screw
The interior hexagonal that hex bolts coordinates, guides the rear end of cylinder to set the extension block body of a week, the through hole internal diameter of the guiding cylinder with it is hollow
The internal diameter size of screw is identical；
Also include disclosing pin, the front end for disclosing pin sets the spherical groove of indent, and the diameter for disclosing pin is less than guiding cylinder and hollow spiral shell
The internal diameter of nail, discloses the length of pin more than hollow screw length and guiding tube length degree sum, and the rear portion external diameter surface for disclosing pin is provided with quarter
Degree.
Preferably, the rear portion for disclosing pin sets area of section pushes away body more than disclose pin,
Further preferably to set round and smooth arcwall face transition between the block body and through hole of the guiding cylinder, guiding cylinder surface sets
Anti-skid structure.
Further preferred, the length of the guiding cylinder is 90mm-120mm.
Preferably, the guiding cylinder is medical plastic material, pin is disclosed for medical metal material.
Preferably, the external diameter for disclosing pin is 2.7-2.85mm, the internal diameter of cylinder is guided to be all with the internal diameter of hollow screw
2.9mm。
Preferably, the external diameter for disclosing pin is 2.8mm.
The advantage of patent is：Solve bone grafting when closed reduction menisectomy process cannot expose neck of femur rear structure difficult
Problem, the addition of bone grafting in accurate art improve union of fracture effect, and device structure requires simple, easy to manufacture.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention,
Fig. 2 is the Split type structure schematic diagram of the present invention,
Reference：In 1 guiding cylinder 2 block body, 3 through hole 4, hexagonal 5 is disclosed 6 spherical groove of pin, 7 scale 8 to push away the implantation bone 10 of body 9 hollow
Screw.
Specific embodiment
The present invention is as shown in the figure：
Fracture of femoral neck bone grafting instrument, including the middle guiding cylinder 1 for through hole 3, guide the front end of cylinder 1 to set and hollow screw 10
The interior hexagonal 4 that coordinates of outer-hexagonal bolt, guide the rear end of cylinder 1 to set the extension block body of a week 2, in the through hole of the guiding cylinder 1
Footpath is identical with the internal diameter size of hollow screw；
Also include disclosing pin 5, the front end for disclosing pin 5 sets the spherical groove 6 of indent, and the diameter for disclosing pin 5 is less than guiding cylinder and sky
The through hole internal diameter of heart screw, discloses the length of pin 5 more than hollow screw length and guiding tube length degree sum, discloses the rear portion external diameter of pin 5
Surface is provided with 7 degree of quarter.
The rear portion for disclosing pin 5 sets area of section and pushes away body 8 more than disclose pin.Set round and smooth between the block body 2 and through hole 3 of guiding cylinder 1
Arcwall face transition, 1 surface of guiding cylinder set anti-skid structure.
The length of guiding cylinder 1 is 90mm-120mm.Guiding cylinder 1 is medical plastic material, discloses pin 5 for medical metal material.
The external diameter for disclosing pin 5 is 2.7-2.85mm, guides the internal diameter of cylinder 1 to be all 2.9mm with the internal diameter of hollow screw.Disclose pin 5
Preferred external diameter be 2.8mm.
Application of the present invention in operation：
First, with Continuous Epidural Block, the lower extension table continuous traction suffering limb of C arm machine perspective, suffering limb abduction inward turning are held
Continuous soft traction offside lower limb；C arms perspective makes fracture end anatomical reduction as far as possible, resets until the lower fracture of perspective is satisfied, multiple
Suffering limb neutral position is kept behind position；Then, sterilization, paving aseptic towel, 4-5cm cuts aperture below the greater trochanter, three, each about 1cm,
Three pieces of guide pins are squeezed into respectively；C arm machine fluoroscopic examination neck of femur positive side position, position are good.
By hollow screw（7.3mm diameter）Squeezed into fracture site respectively, medical personnel grip guiding cylinder, hollow screw
Outer-hexagonal access the interior hexagonal of guiding cylinder 1 front end, the bone that band is implanted into is put in the spherical groove of cleansing pin front end, cleansing pin is from guiding
1 rear end through hole insertion of cylinder, is advanced into the through hole of hollow screw, is finally implanted into bone and pushes in femur before disclosing pin.Often locate about 5 pieces；Again
After the satisfaction of secondary perspective hollow nail position, sew up the incision, operation is completed.
Above-mentioned three classes of implantation bone source point, respectively autologous bone, allograph bone and artificial bone.
Hip joint flexion-extension motion can be carried out within generally postoperative 48 hours, and lower limb muscles contractile function is taken exercise；Help in 1 month
Crutches activity, suffering limb are not born a heavy burden, and help crutches to walk after 1 month, and suffering limb part is born a heavy burden, and strengthen functional exercise.Postoperative conventional positive side
Position
X-ray is checked, according to clinical manifestation and X-ray film inspection after half a year, such as reaches bony union, work of can bearing a heavy burden completely
The present invention has carried out data statisticss in clinical practice.
Using after the bone grafting operation that the present invention is carried out, the follow-up that patient was not waited through 12-26 month is checked for average 15 months
Show that healing time is 4~11 months, average 5.2 months.Patient populations are 41, wherein carrying out bone grafting using the present invention
Post operation, cures 38（92.7%）, nonunion 2, femur head necrosiss 1.
For the bone grafting patient for curing uses Brumback Hip function assessment standards：
It is excellent, normal hip joint activity, without pain, no obvious Imageology；
It is good, the range of activity of Normal Hip 75%, without pain, imaging evaluation hip joint MC；
Can/poor, with moderate or serious hip joint limitation of activity, moderate person is serious, and iconography is bad for the hip arthralgia, or
Degenerated joint changes.
In 38, excellent 20, good 14, can/differ from 4.
Do not occur during this group of follow-up of patients interior fixation loosen, rupture, skidding off and neck of femur cripetura and coxa vara it is abnormal
Shape etc..
Claims (7)
1. a kind of fracture of femoral neck bone grafting instrument, is characterized in that, including middle for through hole（3）Guiding cylinder（1）, guide cylinder（1）'s
Front end sets and hollow screw（10）Outer-hexagonal bolt coordinate interior hexagonal (4), guide cylinder (1) rear end set the extension gear of a week
Body（2), the through hole internal diameter of guiding cylinder (1) is identical with the internal diameter size of hollow screw；
Also include disclosing pin (5), the front end for disclosing pin (5) sets the spherical groove (6) of indent, and the diameter for disclosing pin (5) is less than guiding cylinder
With the through hole internal diameter of hollow screw, the length of pin (5) is disclosed more than hollow screw length and guiding tube length degree sum, disclose pin（5）'s
Rear portion external diameter surface is provided with quarter (7) degree.
2. fracture of femoral neck bone grafting instrument according to claim 1, is characterized in that, disclosing the rear portion of pin (5), to set area of section big
Body (8) is pushed away in disclose pin.
3. fracture of femoral neck bone grafting instrument according to claim 2, is characterized in that, the block body (2) of guiding cylinder (1) with it is logical
Round and smooth arcwall face transition is set between hole (3), guiding cylinder (1) surface sets anti-skid structure.
4. fracture of femoral neck bone grafting instrument according to claim 3, is characterized in that, the length of guiding cylinder (1) is 90mm-
120mm。
5. fracture of femoral neck bone grafting instrument according to claim 4, is characterized in that, guiding cylinder (1) is medical plastic material
Matter, discloses pin (5) for medical metal material.
6. fracture of femoral neck bone grafting instrument according to claim 5, is characterized in that, the external diameter for disclosing pin (5) is 2.7-
2.85mm, guides the internal diameter of cylinder (1) to be all 2.9mm with the internal diameter of hollow screw.
7. fracture of femoral neck bone grafting instrument according to claim 6, is characterized in that, the external diameter for disclosing pin (5) is 2.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620843036.0U CN206167021U (en) | 2016-08-05 | 2016-08-05 | Femoral neck fracture bone grafting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620843036.0U CN206167021U (en) | 2016-08-05 | 2016-08-05 | Femoral neck fracture bone grafting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206167021U true CN206167021U (en) | 2017-05-17 |
Family
ID=58674470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620843036.0U Expired - Fee Related CN206167021U (en) | 2016-08-05 | 2016-08-05 | Femoral neck fracture bone grafting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206167021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264701A (en) * | 2016-08-05 | 2017-01-04 | 王成斌 | Fracture of femoral neck bone grafting instrument |
-
2016
- 2016-08-05 CN CN201620843036.0U patent/CN206167021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264701A (en) * | 2016-08-05 | 2017-01-04 | 王成斌 | Fracture of femoral neck bone grafting instrument |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20190805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |