CN205307076U - Excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft - Google Patents
Excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft Download PDFInfo
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- CN205307076U CN205307076U CN201620027248.1U CN201620027248U CN205307076U CN 205307076 U CN205307076 U CN 205307076U CN 201620027248 U CN201620027248 U CN 201620027248U CN 205307076 U CN205307076 U CN 205307076U
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Abstract
The utility model provides an excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft, characterized by pedicle of vertebral arch nail is established to long -tail hollow rivet, and the hollow rivet distal end is established to spongy bone screw thread (1), and the near -end is established to cortex murices line (2), and the type into U is established in screw tail (3), and the screw tail distal end is established to long -tail (4). Screw tail is equipped with screw tail with the long -tail junction outside and establishes to long -tail plane (6) from mark of break (5), the long -tail outside, screw tail is equipped with trapezoidal thread (7) with the long -tail inboard, and corner recess (8) are established to the trapezoidal thread, establish to the trapezoidal protruding screw thread of last tie (9) in the head of a nail outside, and establish to plum blossom recess (10) the centre, and the plum blossom recess is equipped with reverse female thread (11), and head of a nail near -end is equipped with U type fixture block (12), the head of a nail and the activity of inlaying mutually of U type fixture block, the connective bar is established to T type stick, and main stick (13) is established to the distal end, and T type handle (14) is established to the near -end, awl point (15) is established to main excellent end, and bit slice (16) is set for to the near -end, arcuate arm (17) are established to T type handle, main stick is equipped with the connective bar from mark of break (18) with the arcuate arm junction.
Description
Technical field
The utility model is applied to clinical orthopaedics, is the internal fixation system of a kind of lumbar vertebra compression fracture, belongs to medical device. It applies to that human body thoracic vertebrae, lumbar vertebrae posterior longitudinal ligament be complete and unstable fracture closed reduction internal fixation apparatus. The application of this equipment, is namely conducive to alleviating operation wound, is conducive to again reducing operation and hospital stays.
Background technology
The methods for the treatment of of lumbar vertebra compression fracture, in development, varies. Roy-Camille etc. started in 1961 to apply pedicle screw and steel plate carries out lumbar vertebra compression fracture internal fixtion. Through clinical application and the multicenter study analysis of half a century, it is believed that pedicle screw treatment lumbar vertebra compression fracture is effective. Fracture or dislocation system also to pedicle screw-rod system evolution by nail-plate. Operation wound also improves along with internal fixation system and surgical skill level improves and reduces.
At present, pedicle screw-rod system has become the main flow of Thoracolumbar disk unstable fracture Posterior fixation treatment. Pedicle screw-rod system can stablize internal fixtion for lumbar vertebra compression fracture provides, and the centrum of compression is opened in the revolving force, the effectively support that control fracture well, recovers Stability Analysis of Structures between centrum.
Along with the proposition of BO theory, unstable lumbar vertebra compression fracture internal fixtion resets to closed reset by opening to be changed, to alleviate soft tissue injury. But, it is quite difficult for obtaining and maintaining Thoracolumbar disk closed reduction. Existing relevant internal fixation apparatus occurs on the market now, but still haves much room for improvement. We devise a kind of lumbar vertebra compression fracture way of escape Wicresoft nail-stick system, are namely conducive to alleviating operation wound, are conducive to again reducing operating time.
Practical novel content
The purpose of this utility model is the deficiency in order to overcome existing lumbar vertebra compression fracture fracture or dislocation equipment, it provides a kind of effective internal fixation apparatus. Namely this novel system is conducive to alleviating operation wound, is conducive to again reducing operating time. It is Thoracolumbar disk unstable fracture, the optimal selection of the complete patient of posterior longitudinal ligament.
In order to realize above-mentioned purpose, the utility model adopts following technical scheme:
A kind of lumbar vertebra compression fracture way of escape Wicresoft nail-stick system.It is characterized in that pedicle nail is set to long-tail hollow nail, hollow nail far-end is set to cancellous threads (1), and near-end is set to cortex bone screw thread (2), and nail tail (3) is set to U-shaped, and nail tail far-end is set to long-tail (4); It is provided with nail tail from mark of break (5) outside nail tail and long-tail junction, outside long-tail, it is set to long-tail plane (6); It is provided with trapezoidal thread (7) inside nail tail and long-tail, in trapezoidal thread, it is provided with corner groove (8); Being set to upper flat trapezoidal convex thread (9) outside the head of a nail, be set to plum blossom groove (10) in the middle of the head of a nail, plum blossom groove is provided with reverse recessed screw thread (11), and head of a nail near-end is provided with U-shaped card block (12); The head of a nail and the U-shaped mutually embedding activity of card block; Connective bar is set to T-bar, and T-bar far-end is set to main rod (13), and near-end is provided with T-shaped handle (14). Main rod end is provided with cone point (15), and near-end is provided with location sheet (16). T-shaped handle establishes arched arm (17). Main rod and arched arm junction are provided with connective bar from mark of break (18). Said system part size is: hollow nail distal diameter 3.0-7.0mm, proximal diameter is gradually big. Screw length 25-60mm. Nail tail diameter 10-20mm, length 10-20mm. U-shaped wide 6-8mm. The long 30-50mm of long-tail, long-tail plane separation is from 12-18mm. Long-tail is identical with nail tail trapezoidal thread diameter. The long 6-16mm of corner groove, wide 4-8mm. Head of a nail diameter 6-8mm, thickness 2-6mm. The U-shaped long 4-14mm of card block, wide 2-6mm, high 6-12mm. T-bar diameter 6-8mm, long 40-450mm. Location sheet diameter 8-10mm, thickness 1-2mm. Arched arm radian 0-45 °. Long-tail hollow nail is provided with unidirectional long-tail nail or universal long-tail nail. T-bar is set to hollow T-bar and solid T-bar two kinds. Trapezoidal thread inside nail tail and long-tail, is provided with corner groove or without corner groove in trapezoidal thread. Head of a nail near-end is provided with U-shaped card block or plane without card block. It is set to triangle, corner, five jiaos, hexagonal and plum blossom groove in the middle of the head of a nail.
Principle of work of the present utility model is: anaesthetize after successfully, and patient gets prone position on bone surgery bed, routine disinfection paving towel. " C-arm " Fluoroscopy location hinders vertebra, dash forward through neighbouring centrum vertebral arch root upper joint and insert guide pin with Heng Tu intersection, cut entrance skin 2cm, insert conduit expansion, and place hollow fibre along guide pin and attack, carry out tapping, application hollow pedicle crow-bar fixed reset sleeve and long-tail pedicle nail implant long-tail pedicle nail through guide pin, through the outer resetting system distraction reduction fracture of skin, insert T-bar guide pin in pedicle nail tail through pivot arm, insert T-bar through this guide pin. T-bar main rod pre-bending as required. The location sheet control main rod degree of depth. It is screwed into the head of a nail respectively and locks. Remove the outer resetting system of skin. Fracture pedicle nail long-tail and T-shaped handle. Check dressing system, close otch and wrap up. Omnidistance operation under " C-arm " monitors.
Useful effect:
One, security: inserting pedicle nail through skin does not need otch to appear paraspinal muscle. Omnidistance operation under " C-arm " monitors, through hindering, vertebra neighbouring centrum vertebral arch root upper joint is prominent inserts guide pin with Heng Tu intersection, can not injured nerve, blood vessel.
Two, validity: having at present multiple lumbar vertebra compression fracture way of escape Wicresoft system on the market, clinical application is extensive. Native system improves on existing internal fixation system basis, is applicable to Thoracolumbar disk unstable fracture, and the patient that posterior longitudinal ligament is complete. Namely this novel system is conducive to alleviating operation wound, is conducive to again reducing operating time.
The utility model has the advantage of:
1, the utility model provides long-tail planar design to be conducive to making nail tail direction consistent under the outer resetting system effect of skin, and convenient insertion T-bar is inserted smoothly.
2, the utility model provides T-bar to be designed with and is beneficial to the main rod rotation of prevention. It is dark that Design Orientation sheet is conducive to preventing main rod to insert. Connective bar is designed with from mark of break and is beneficial to T-shaped handle of autotomying. Arched arm arc is designed with and is beneficial to prevention main rod insertion muscle stop.
3, the utility model follows closely the design of trapezoidal thread inside tail and long-tail, makes the head of a nail resist to deviate from ability to strengthen, and head of a nail lock ability is also strengthened.
4, the utility model provides upper flat trapezoidal convex thread outside the head of a nail to be designed with and is beneficial to increase and nail tail constant intensity. The reverse recessed screw thread of plum blossom groove is designed with and prevents the head of a nail slippage when getting internal fixation system after being beneficial to union of fracture. Head of a nail near-end U-shaped card blocks design is conducive to maximum degree to decompose stress between the head of a nail and main rod, the stability of strengthening nail bar system.
5, the utility model provides long-tail hollow nail unidirectional long-tail nail and universal long-tail nail to be designed with and is beneficial to the fixing of contiguous multiple lumbar vertebra compression fracture. T-bar is designed to hollow T-bar and the two kinds of selections being conducive to connective bar diameter of solid T-bar.
Accompanying drawing explanation
Fig. 1 is using state figure of the present utility model.
Fig. 2 is the front view of the utility model pedicle nail.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the A-A sectional view of Fig. 2.
Fig. 5 is the front view of the utility model head of a nail.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the B-B sectional view of Fig. 5.
Fig. 8 is the utility model connective bar front view.
Fig. 9 is the birds-eye perspective of Fig. 8.
Figure 10 is Fig. 8 left view.
Figure 11 is the C-C cutaway view Amplified image of Fig. 1.
Icon: (1) cancellous threads, (2) cortex bone screw thread, (3) tail is followed closely, (4) long-tail, (5) tail is followed closely from mark of break, (6) long-tail plane, (7) trapezoidal thread, (8) corner groove, (9) upper flat trapezoidal convex thread, (10) plum blossom groove, (11) reverse recessed screw thread, (12) U-shaped card block, (13) main rod, (14) T-shaped handle, (15) cone point, (16) sheet is located, (17) arched arm, (18) connective bar is from mark of break.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, a kind of lumbar vertebra compression fracture way of escape Wicresoft nail-stick system. It is characterized in that pedicle nail is set to long-tail hollow nail, hollow nail far-end is set to cancellous threads (1), and near-end is set to cortex bone screw thread (2), and nail tail (3) is set to U-shaped, and nail tail far-end is set to long-tail (4). It is provided with nail tail from mark of break (5) outside nail tail and long-tail junction, outside long-tail, it is set to long-tail plane (6). It is provided with trapezoidal thread (7) inside nail tail and long-tail, in trapezoidal thread, it is provided with corner groove (8). It is characterized in that being set to upper flat trapezoidal convex thread (9) outside the head of a nail, be set to plum blossom groove (10) in the middle of the head of a nail, plum blossom groove is provided with reverse recessed screw thread (11), and head of a nail near-end is provided with U-shaped card block (12). The head of a nail and the U-shaped mutually embedding activity of card block. Connective bar is set to T-bar, and T-bar far-end is set to main rod (13), and near-end is provided with T-shaped handle (14). Main rod end is provided with cone point (15), and near-end is provided with location sheet (16). T-shaped handle establishes arched arm (17). Main rod and arched arm junction are provided with connective bar from mark of break (18).
In above-mentioned part, hollow nail distal diameter 3.0-7.0mm, proximal diameter is gradually big. Screw length 25-60mm. Nail tail diameter 10-20mm, length 10-20mm. U-shaped wide 6-8mm. The long 30-50mm of long-tail, long-tail plane separation is from 12-18mm. Long-tail is identical with nail tail trapezoidal thread diameter. The long 6-16mm of corner groove, wide 4-8mm. Head of a nail diameter 6-8mm, thickness 2-4mm.The U-shaped long 4-14mm of card block, wide 2-6mm, high 6-12mm. Lumbar vertebra compression fracture according to claim 1 way of escape Wicresoft nail-stick system. It is characterized in that: T-bar diameter 6-8mm, long 40-450mm. Location sheet diameter 8-10mm, thickness 1-2mm. Arched arm radian 0-45 °. Long-tail hollow nail is provided with unidirectional long-tail nail and universal long-tail follows closely two kinds. T-bar is set to hollow T-bar and solid T-bar two kinds. Trapezoidal thread inside nail tail and long-tail, is provided with corner groove and without corner groove two kinds in trapezoidal thread. Head of a nail near-end is provided with U-shaped card block and plane without card block two kinds. The plum blossom groove design of the head of a nail becomes triangle, corner, five jiaos, hexagonal or new hexagonal plum blossom groove.
Claims (5)
1. a lumbar vertebra compression fracture way of escape Wicresoft nail-stick system, it is characterized in that pedicle nail is set to long-tail hollow nail, hollow nail far-end is set to cancellous threads (1), near-end is set to cortex bone screw thread (2), nail tail (3) is set to U-shaped, and nail tail far-end is set to long-tail (4); It is provided with nail tail from mark of break (5) outside nail tail and long-tail junction, outside long-tail, it is set to long-tail plane (6); It is provided with trapezoidal thread (7) inside nail tail and long-tail, in trapezoidal thread, it is provided with corner groove (8); Being set to upper flat trapezoidal convex thread (9) outside the head of a nail, be set to plum blossom groove (10) in the middle of the head of a nail, plum blossom groove is provided with reverse recessed screw thread (11), and head of a nail near-end is provided with U-shaped card block (12); The head of a nail and the U-shaped mutually embedding activity of card block; Connective bar is set to T-bar, and T-bar far-end is set to main rod (13), and near-end is provided with T-shaped handle (14); Main rod end is provided with cone point (15), and near-end is provided with location sheet (16); T-shaped handle establishes arched arm (17); Main rod and arched arm junction are provided with connective bar from mark of break (18).
2. lumbar vertebra compression fracture according to claim 1 way of escape Wicresoft nail-stick system, it is characterized in that: hollow nail distal diameter 3.0-7.0mm, proximal diameter is gradually big, screw length 25-60mm, nail tail diameter 10-20mm, length 10-20mm, U-shaped wide 6-8mm, the long 30-50mm of long-tail, long-tail plane separation is from 12-18mm, long-tail is identical with nail tail trapezoidal thread diameter, the long 6-16mm of corner groove, wide 4-8mm.
3. lumbar vertebra compression fracture according to claim 1 way of escape Wicresoft nail-stick system, is characterized in that: head of a nail diameter 6-8mm, thickness 2-6mm, the U-shaped long 4-14mm of card block, wide 2-6mm, high 6-12mm.
4. lumbar vertebra compression fracture according to claim 1 way of escape Wicresoft nail-stick system, is characterized in that: T-bar diameter 6-8mm, long 40-450mm, location sheet diameter 8-10mm, thickness 1-2mm, arched arm radian 0-45 °.
5. lumbar vertebra compression fracture according to claim 1 way of escape Wicresoft nail-stick system, it is characterized in that: long-tail hollow nail is provided with unidirectional long-tail nail and universal long-tail follows closely two kinds, T-bar is set to hollow T-bar and solid T-bar two kinds, follow closely trapezoidal thread inside tail and long-tail, corner groove it is provided with and without corner groove two kinds in trapezoidal thread, head of a nail near-end is provided with U-shaped card block and plane without card block two kinds, and the plum blossom groove design of the head of a nail becomes triangle, corner, five jiaos, hexagonal or new hexagonal plum blossom groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027248.1U CN205307076U (en) | 2016-01-03 | 2016-01-03 | Excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620027248.1U CN205307076U (en) | 2016-01-03 | 2016-01-03 | Excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft |
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| CN205307076U true CN205307076U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620027248.1U Expired - Fee Related CN205307076U (en) | 2016-01-03 | 2016-01-03 | Excellent system is followed closely by chest fracture of lumbar vertebra way of escape wicresoft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708535A (en) * | 2016-01-03 | 2016-06-29 | 邓宇 | Posterior minimally invasive screw-rod system for thoracolumbar vertebral fracture |
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2016
- 2016-01-03 CN CN201620027248.1U patent/CN205307076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708535A (en) * | 2016-01-03 | 2016-06-29 | 邓宇 | Posterior minimally invasive screw-rod system for thoracolumbar vertebral fracture |
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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: 20160615 Termination date: 20220103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |