CN203662882U - Spinal fracture posterior quantitative external distraction reduction fixation device - Google Patents
Spinal fracture posterior quantitative external distraction reduction fixation device Download PDFInfo
- Publication number
- CN203662882U CN203662882U CN201420010555.XU CN201420010555U CN203662882U CN 203662882 U CN203662882 U CN 203662882U CN 201420010555 U CN201420010555 U CN 201420010555U CN 203662882 U CN203662882 U CN 203662882U
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- screw
- spinal fracture
- pullover
- quantizes
- distraction reduction
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Abstract
The utility model relates to a spinal fracture posterior quantitative external distraction reduction fixation device used for the spinal surgery. The spinal fracture posterior quantitative external distraction reduction fixation device is composed of two hollow screws, a connecting bar used for fixation, a fixed sleeve head, a movable sleeve head, a movable pressing bar, a hydraulic balloon and an instrument. A plurality of orifices are formed in the head portions of the hollow screws, screw caps are arranged on the rear portions of the hollow screws, and the inner diameter of the screw caps is matched with the outer diameter of the screw caps. A screw pore passage is formed in the fixed sleeve head, and the inner diameter of the screw pore passage is the same as the outer diameter of the hollow screws. A hollow channel is formed in a long shaft of the fixed sleeve head and is used for installing the movable pressing bar and the hydraulic balloon. The size of the cross section of one side of the hollow channel is the same as the size of the cross section of the head portion of the movable pressing bar, and the size of the cross section of the other side of the hollow channel is the same as the cross section of the body portion of the movable pressing bar. The hydraulic balloon is arranged between the head portion of the movable pressing bar and the hollow channel in the long shaft of the fixed sleeve head. The hydraulic balloon is externally connected with the instrument through an instrument connector. Scales are marked on the body portion of the movable pressing bar. A screw pore passage, a movable pressing bar channel and a locking screw are arranged on the movable sleeve head. The spinal fracture posterior quantitative external distraction reduction fixation device avoids various complications caused by unreasonable reduction conducted by a spinal surgeon according to personal experience and helps the spinal surgeon to achieve the purpose of spinal fracture limited and reasonable reduction.
Description
Technical field
The present invention relates to a kind of spinal fracture way of escape for spinal surgery and quantize distraction reduction external fixer.
Background technology
Spinal fracture is one of common wound, and especially lumbar vertebra compression fracture is clinical the most common, for the lumbar vertebra compression fracture of not accompanying nerve injury, slightly fractures without operative treatment except a part, and majority needs operative treatment.
Along with the aging of population, osteoporosis sickness rate obviously increases, and approximately there are 200,000,000 sufferers of osteoporosis face in the whole world at present, and China estimates at 5,000 ten thousand left and right.Osteoporotic vertebral fracture is also a large type of lumbar vertebra compression fracture.
Traditional cut multiple internal fixation and have large, the hemorrhage shortcomings such as many of wound, compared with traditional open surgery, the target of invasive surgery formula is to reach the clinical efficacy same with traditional operation with minimum wound.
The non-osteoporotic thoracolumbar fracture micro-traumatic fracture reduction fixer tool using at present comprises Sextant, frame-type plus-minus screw bolt angle nail basefixer for spine etc.The Therapeutic Method of osteoporotic compressed fracture of thoracic vertebra and lumber vertebra comprises protruding plasty etc. after percutaneous vertebroplasty and percutaneous.
But no matter be non-osteoporotic impassivity damage lumbar vertebra compression fracture or osteoporotic compressed fracture of thoracic vertebra and lumber vertebra, all exist with clinicist personal experience and reset, lack the index that instructs of a quantification, thereby cause the generation of the complication such as unnecessary broken nail, stub and lifelong hunchback, operative failure, adjacent vertebra folding.
Summary of the invention
The many complication that cause for fear of unreasonable reset, we have designed this spinal fracture way of escape and have quantized distraction reduction external fixer.This apparatus can help spinal surgery doctor to reach spinal fracture quantification, limited reposition, rationally reset.
The present invention is achieved by the following technical solutions:
1, this spinal fracture way of escape quantizes distraction reduction external fixer and fixes pullover, removable pullover, a removable rod of exerting pressure, a hydraulic pressure sacculus and an instrument with pitman and one and form by two pieces of hollow screws, one are fixing.
2, hollow screw head is provided with multiple apertures, and afterbody is provided with nut, nut internal diameter and cap nut external diameter coupling, and bone cement can arrive around screw by aperture, strengthening nail road.
3, the fixing pullover screw duct that is provided with, screw duct internal diameter is consistent with hollow screw external diameter, and hollow screw is just in time through screw duct.
4, in fixing pullover major axis, be hollow channel, for mobile rod and the hydraulic pressure sacculus of exerting pressure is installed.
5, hollow channel one lateral section size is consistent with the mobile club head cross-sectional sizes of exerting pressure, and opposite side cross-sectional sizes is consistent with the mobile barred body portion cross section of exerting pressure.
6, mobile hollow channel of exerting pressure in club head and fixing pullover major axis accompanies hydraulic pressure sacculus.
7, hydraulic pressure sacculus is by instrument connector extension instrument.
8, the mobile barred body standard laid down by the ministries or commissions of the Central Government of exerting pressure has scale.
9, a removable pullover screw duct, a movement exert pressure excellent passage and the lock screw of being provided with, the mobile rod of exerting pressure is installed to removable movement on pullover and exerts pressure after excellent passage, is screwed down lock screw and can fixes the mobile rod of exerting pressure.
Brief description of the drawings
Accompanying drawing: Fig. 1: hollow screw structural representation of the present invention.
Fig. 2: the movement of the present invention structural representation after rod and fixing pullover assembling of exerting pressure.
Fig. 3: Moveable-jacket header structure schematic diagram of the present invention.
Fig. 4: the present invention has assembled rear structural representation.
In figure: 1. hollow screw; 2. aperture; 3. screw hollow channel; 4. nut; 5. nut female thread; 6. screw duct; 7. hollow channel; 8. instrument connector; 9. instrument; 10. scale; 11. move the rod of exerting pressure; 12. hydraulic pressure sacculus; 13. move the barred body portion that exerts pressure; 14. move the club head of exerting pressure; 15. is fixing pullover; 16. is removable pullover; 17. lock screws; 18. move the excellent passage of exerting pressure; 19. is fixing with pitman; 20. cap nuts.
Detailed description of the invention
After apparatus sterilizing sterilization, carry out body surface marking with it planning to implement the lumbar vertebra compression fracture minimal invasion outer fixing patient that resets, skin incision, under X-ray C arm machine or navigator are assisted, inserts Kirschner wire in pedicle of vertebral arch.Get structure after mobile exert pressure rod and fixing pullover assembling (production out mobile exert pressure rod and fixing pullover assembling is exactly what fit together), one piece of hollow screw 1 is set to 6 li, screw duct on fixing pullover 15.Assistant helps to buttress fixing pullover, and operator is screwed into pedicle of vertebral arch by hollow screw 1 along Kirschner wire, transfers to Kirschner wire.Get removable pulloverly 16, be inserted in one piece of hollow screw on screw duct 6 thereon, assistant helps to buttress removable pullover, and operator is screwed into homonymy pedicle of vertebral arch by hollow screw 1 along Kirschner wire, transfers to Kirschner wire.Two pieces of hollow screws are screwed into and approach after same plane, removable pullover 16 movement is inserted in in the mobile barred body portion 13 that exerts pressure and exerts pressure in excellent passage 18, after location confirmation, tighten lock screw 17.For sufferers of osteoporosis face, according to bone density size, to estimating that the patient that need to follow closely strengthening treats that toward injecting bone cement in hollow screw its aperture by hollow screw head permeates into around hollow screw, for there is no sufferers of osteoporosis face, without injection bone cement.Then be set in the nut 4 of two pieces of hollow screws with pitman 19 fixing, get 20 two of cap nuts, be screwed to respectively in the nut 4 of two pieces of hollow screws, first tighten wherein one piece of cap nut, carry out distraction reduction by supporting reduction instrument, in the process of continuous distraction reduction, exert pressure excellent 11 because two pieces of screws strut, pull to both sides to move, the mobile club head 14 feeding pressure ball capsules 12 of exerting pressure are exerted pressure, and corresponding pressure size shows by instrument 9.Operator should be noted the data in instrument 9 and moves the scale of the barred body portion that exerts pressure.Reasonably strut after size when reaching, tighten another piece of cap nut.Same method row offside operation.For sufferers of osteoporosis face, can hinder in vertebra and inject bone cement what reset, the present invention is postoperative just dismountable, for need to fix a period of time without sufferers of osteoporosis face and part sufferers of osteoporosis face, until remove the present invention after union of fracture.
Claims (9)
1. the spinal fracture way of escape quantizes a distraction reduction external fixer, it is characterized in that: fix pullover, removable pullover, a removable rod of exerting pressure, a hydraulic pressure sacculus and an instrument with pitman and one and form by two pieces of hollow screws, one are fixing.
2. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: hollow screw head is provided with multiple apertures, and afterbody is provided with nut nut internal diameter and cap nut external diameter coupling.
3. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: the fixing pullover screw duct that is provided with, screw duct internal diameter is consistent with hollow screw external diameter.
4. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: in fixing pullover major axis, be hollow channel, for mobile rod and the hydraulic pressure sacculus of exerting pressure is installed
The spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: hollow channel one lateral section size is consistent with the mobile club head cross-sectional sizes of exerting pressure, and opposite side cross-sectional sizes is consistent with the mobile barred body portion cross section of exerting pressure.
5. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: mobile hollow channel of exerting pressure in club head and fixing pullover major axis accompanies hydraulic pressure sacculus.
6. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: hydraulic pressure sacculus is by instrument connector extension instrument.
7. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: the mobile barred body standard laid down by the ministries or commissions of the Central Government of exerting pressure has scale.
8. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: a removable pullover screw duct, a movement exert pressure excellent passage and the lock screw of being provided with, the mobile rod of exerting pressure is installed to removable movement on pullover and exerts pressure after excellent passage, is screwed down lock screw and can fixes the mobile rod of exerting pressure.
9. the spinal fracture way of escape according to claim 1 quantizes distraction reduction external fixer, it is characterized in that: a removable pullover screw duct, a movement exert pressure excellent passage and the lock screw of being provided with, the mobile rod of exerting pressure is installed to removable movement on pullover and exerts pressure after excellent passage, is screwed down lock screw and can fixes the mobile rod of exerting pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010555.XU CN203662882U (en) | 2014-01-08 | 2014-01-08 | Spinal fracture posterior quantitative external distraction reduction fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010555.XU CN203662882U (en) | 2014-01-08 | 2014-01-08 | Spinal fracture posterior quantitative external distraction reduction fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203662882U true CN203662882U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010555.XU Withdrawn - After Issue CN203662882U (en) | 2014-01-08 | 2014-01-08 | Spinal fracture posterior quantitative external distraction reduction fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203662882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103690232A (en) * | 2014-01-08 | 2014-04-02 | 倪文飞 | Spinal fracture posterior quantitative distraction reduction external fixation device |
| CN109009372A (en) * | 2018-08-20 | 2018-12-18 | 陈聚伍 | It fractures external fixed frame mounting assembly |
-
2014
- 2014-01-08 CN CN201420010555.XU patent/CN203662882U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103690232A (en) * | 2014-01-08 | 2014-04-02 | 倪文飞 | Spinal fracture posterior quantitative distraction reduction external fixation device |
| CN109009372A (en) * | 2018-08-20 | 2018-12-18 | 陈聚伍 | It fractures external fixed frame mounting assembly |
| CN109009372B (en) * | 2018-08-20 | 2023-07-25 | 陈聚伍 | External fixing frame installation component for fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |