CN2477152Y - Chest & waist section spine front route dissection fixed steel plate - Google Patents
Chest & waist section spine front route dissection fixed steel plate Download PDFInfo
- Publication number
- CN2477152Y CN2477152Y CN 01239840 CN01239840U CN2477152Y CN 2477152 Y CN2477152 Y CN 2477152Y CN 01239840 CN01239840 CN 01239840 CN 01239840 U CN01239840 U CN 01239840U CN 2477152 Y CN2477152 Y CN 2477152Y
- Authority
- CN
- China
- Prior art keywords
- steel plate
- lamellar
- lumbar
- preceding road
- radian
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an anterior anatomical steel plate for fixing spinal columns of chest and waist. The fixation instrument contains a sheet-type steel plate(1) which has two ends that are made of titanium alloys and protruded out in the horizontal direction, and a middle part that is I-shaped and bent along the vertical neutral axis as the center line toward one side into an arc, as well as two power-pressing screws at the upper end and two at the lower end of the steel plate(1). The two power-pressing screws at each end are respectively positioned on the two sides of a vertical and neutral line of the steel plate. The middle section of the sheet-type steel plate(1) is provided with two torsion-resistant screws(3). The utility model has the advantages that the steel plate is combined with the centrum of the patient. The connection is stable and safe with high torsion-resistant intensity, avoiding injuring nerves and spinal cords, thus favorable for later fusion and steadiness.
Description
This utility model relates to medical devices, and particularly bone repair is fixing uses equipment, in particular for the steel plate of spinal fixation.
" bone is damaged " that clinically thoracic vertebra, lumbal vertebra capable " vertebral resection " or " vertebral body is partly excised " postoperative is formed at present, the normal employing fixed in conjunction with steel plate from body bone or bone cement, traditional spinal fixation steel plate is flat strip, bad with the fitness of spinal column profile, and this steel plate is fixed in the side of vertebral body usually, the lateral flexion of vertebral column to causing like this by spinal column pleural muscle group, and functions such as rotation have bigger influence, fixed effect is also relatively poor, can take place loosening after a period of time.
The purpose of this utility model provides the preceding road of a kind of lumbar-thoracic spine anatomical form fixation steel plate, it is good that it is had with the fitness of spinal column profile, the lateral flexion of vertebral column that spinal column pleural muscle group is caused, functions such as rotation do not produce obstacle, good fixing effect, life-time service can not become flexible, and advantages such as good biocompatibility are to overcome the deficiency of existing spinal fixation steel plate.
The realization the technical solution of the utility model is:
The preceding road of the lumbar-thoracic spine that this utility model provides anatomical form fixation steel plate, comprise lamellar steel plate 1 and be positioned at power pressurization screw 2 on the lamellar steel plate 1, lamellar steel plate 1 is that upper/lower terminal is wide, " worker " font that mid portion is narrow, and be centrage with vertical axis, be convexly curved to one side to lateral symmetry, power pressurization screw 2 respectively has two at the upper/lower terminal of steel plate 1, and two holes of each end lay respectively at vertical planar middle part, both sides, axis; In the stage casing of lamellar steel plate 1 at least 1 antitorque commentaries on classics Luo hole 3 can be arranged, preferred antitorque commentaries on classics Luo hole 3 is 2, and these 2 antitorque commentaries on classics Luo holes 3 are positioned on the vertical center line in lamellar steel plate 1 stage casing, are vertical upper and lower arrangement.Lamellar steel plate 1 is that middle mind-set simultaneously is convexly curved with vertical axis, and crooked radian is consistent with the forward radian of human body vertebral body, and promptly its crooked radian is generally 16 to 18 degree between 12 to 20 degree.Lamellar steel plate 1 is made by titanium alloy.
The utility model is described in further detail below in conjunction with specific embodiment.
Fig. 1 is the structure chart of this utility model embodiment.
Each toponym shown in the lead-in wire is among the figure:
1---the lamellar steel plate
2---power pressurization screw
3---antitorque commentaries on classics Luo hole
It is laterally projecting to make upper/lower terminal with titanium alloy, " worker " font that mid portion is narrower, and to be centrage with vertical axis be the 17 lamellar steel plates 1 of spending arc-shaped bends to one side, power pressurization screw 2 respectively has two at the upper/lower terminal of steel plate 1, and two holes of each end lay respectively at vertical planar middle part, both sides, axis; 2 antitorque commentaries on classics Luo holes 3 are arranged in the stage casing of lamellar steel plate 1, and these 2 antitorque commentaries on classics Luo holes 3 are positioned on the vertical axis in lamellar steel plate 1 stage casing, are vertical upper and lower arrangement.
This utility model is applied to the capable preceding road of surgery lumbar-thoracic spine and fixes, and rebuilds the stability of spinal column.Because the radian of the preceding road of this utility model titanium alloy spinal column anatomical plate design is consistent with the forward radian of vertebral body, takes this to realize the tightly involutory of steel plate and vertebral body, thereby has strengthened fixed stability; Because upper and lower section of steel plate respectively is provided with two power pressurization Luo holes 2, take this to implement axial pressure, power pressurization Luo hole lays respectively at two sides of spinal column median line, supporting screw can intersect by this hole and is fixed to rear portion to pleurocentrum, braking effect is reliable, safety, can avoid neural, spinal cord injury; The stage casing of steel plate is provided with two Luo holes, and by this hole, screw can be fixed in bone piece or the bone cement, realizes that " laterally " connects the increase anti-torsional strength.This utility model is simple to operate, safety, fixation, for breast, lumbar surgery reparation " the vertebral body bone is damaged " provide perfect fixed apparatus and technique for fixing.The preceding road of the lumbar-thoracic spine that this utility model provides anatomical form fixation steel plate is compared with traditional spinal fixation steel plate, has fixation, strong, the fusion in later stage and stablizing effect are good, for breast, lumbar vertebra " vertebral body is damaged " and " preceding road spinal fixation " operation provide reliable apparatus and technique for fixing, the preceding road of lumbar-thoracic spine anatomical form fixation steel plate is simple to operate in addition, safe in utilization, use titanium alloy as should be with novel material simultaneously, better with the tissue compatibility, do not influence magnetic resonance examination yet.
Claims (10)
1, the preceding road of lumbar-thoracic spine anatomical form fixation steel plate comprises lamellar steel plate (1) and is positioned at power pressurization screw (2) on the lamellar steel plate (1), it is characterized in that:
A. lamellar steel plate (1) is " worker " font narrow between the upper/lower terminal alleviating distention in middle-JIAO, and is that the both sides, center are convexly curved to one side symmetrically with vertical axis;
B. power pressurization screw (2) respectively has two at the upper/lower terminal of lamellar steel plate (1), and two holes of each end lay respectively at vertical planar middle part, both sides, axis.
2, the preceding road of lumbar-thoracic spine according to claim 1 anatomical form fixation steel plate is characterized in that having 1 antitorque commentaries on classics Luo hole (3) at least in the stage casing of said lamellar steel plate (1);
3, the preceding road of lumbar-thoracic spine according to claim 2 anatomical form fixation steel plate is characterized in that said antitorque commentaries on classics Luo hole (3) is 2, is positioned on the vertical center line in lamellar steel plate (1) stage casing, is vertical upper and lower arrangement.
4,, it is characterized in that said lamellar steel plate (1) made by titanium alloy according to claim 1, the preceding road of 2 or 3 described lumbar-thoracic spines anatomical form fixation steel plate.
5,, it is characterized in that said lamellar steel plate (1) is consistent with the forward radian of human body vertebral body to the radian that one side is convexly curved according to claim 1,2,3, the preceding road of described lumbar-thoracic spine anatomical form fixation steel plate.
6, the preceding road of lumbar-thoracic spine according to claim 4 anatomical form fixation steel plate is characterized in that said lamellar steel plate (1) is consistent with the forward radian of human body vertebral body to the radian that one side is convexly curved.
7,, it is characterized in that the radian that said lamellar steel plate (1) is convexly curved to one side is 12 to 20 degree according to claim 1,2,3, the preceding road of described lumbar-thoracic spine anatomical form fixation steel plate.
8, the preceding road of lumbar-thoracic spine according to claim 4 anatomical form fixation steel plate is characterized in that the radian that said lamellar steel plate (1) is convexly curved to one side is 12 to 20 degree.
9, the preceding road of lumbar-thoracic spine according to claim 7 anatomical form fixation steel plate is characterized in that the radian that said lamellar steel plate (1) is convexly curved to one side is 16 to 18 degree.
10, the preceding road of lumbar-thoracic spine according to claim 8 anatomical form fixation steel plate is characterized in that the radian that said lamellar steel plate (1) is convexly curved to one side is 16 to 18 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239840 CN2477152Y (en) | 2001-04-20 | 2001-04-20 | Chest & waist section spine front route dissection fixed steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239840 CN2477152Y (en) | 2001-04-20 | 2001-04-20 | Chest & waist section spine front route dissection fixed steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2477152Y true CN2477152Y (en) | 2002-02-20 |
Family
ID=33652196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01239840 Expired - Fee Related CN2477152Y (en) | 2001-04-20 | 2001-04-20 | Chest & waist section spine front route dissection fixed steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2477152Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
-
2001
- 2001-04-20 CN CN 01239840 patent/CN2477152Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD779065S1 (en) | 2014-10-08 | 2017-02-14 | Nuvasive, Inc. | Anterior cervical bone plate |
| USD798455S1 (en) | 2014-10-08 | 2017-09-26 | Nuvasive, Inc. | Anterior cervical bone plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |