CN218075168U - Screw fixing steel plate in spinal column orthopedics - Google Patents
Screw fixing steel plate in spinal column orthopedics Download PDFInfo
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- CN218075168U CN218075168U CN202221586892.4U CN202221586892U CN218075168U CN 218075168 U CN218075168 U CN 218075168U CN 202221586892 U CN202221586892 U CN 202221586892U CN 218075168 U CN218075168 U CN 218075168U
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- locking
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- locking chamber
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- steel sheet
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 10
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 230000002980 postoperative effect Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 206010017088 Fracture nonunion Diseases 0.000 description 1
- 206010023509 Kyphosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Abstract
The utility model discloses a screw fixation steel sheet in spinal column orthopedics belongs to medical instrument technical field, including first locking chamber, second locking chamber, locking hook, locking Assembly and fixed steel sheet, first locking chamber and second locking chamber are the symmetry and set up, be equipped with the slip opening on the first locking chamber, the locking hook is equipped with two, two the locking hook symmetry respectively sets up the lower extreme in first locking chamber and second locking chamber, the locking Assembly passes first locking chamber and second locking chamber, fixed steel sheet is equipped with two, two fixed steel sheet symmetry sets up the below in first locking chamber and second locking chamber, and this device can be adjusted according to the required fixed position of patient to be applicable to the required size of different patients, and be favorable to the stability of patient's postoperative.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a screw fixation steel sheet in spinal column orthopedics.
Background
Since the AO tissue was pushed out of the plate screw fixation system, open reduction plate internal fixation became the treatment of choice for most patients with bone fractures. Along with the wide application of the internal fixation of the incised reduction steel plate, the complication of fracture nonunion arouses the high attention of clinicians; some doctors believe that the main reason of bone nonunion is due to serious damage to blood circulation at the fracture end caused by open surgery, so in recent years, a minimally invasive fixation system (LISS) appears, and the method for using a steel plate screw is as follows: after minimally invasive insertion of the steel plate for fracture reduction, a matched locking screw is used for implantation from the lateral side to the opposite side of the steel plate; in view of the fact that the main nerve and blood vessels of the human body are mostly distributed on the inner side of the limb, in order to avoid damaging the nerve of the blood vessel, the steel plate is usually placed on the outer side of the limb; but for partial medial cortical incomplete fractures, placement of the supporting steel plate on the medial side has better biomechanical properties. In addition, the direction of the thread in the hole of the existing steel plate is fixed, thereby limiting the implantation direction of the screw, and when the implantation direction is deviated, the screw is difficult to obtain effective fixation.
Chinese patent publication No. CN201055419Y discloses a spine 5 sacral 1 anterior steel plate screw internal fixation device, which comprises a steel plate with a narrow head side and a narrow tail side, which are circular arc-shaped, a fixation screw with a head end face having a fast thread and a self-tapping slot at the tip, a fixation screw with a head end face having an internal hexagonal slot, a head side pressing plate with an internal long slot in the middle, a countersunk head locking screw, and a tail side pressing plate with an internal round hole in the middle, wherein the head ends of the two fixation screws are respectively arranged in two holes in the middle of the head side of the steel plate, the head side pressing plate is pressed on the end faces of the two fixation screws, the countersunk head locking screw passes through the internal long slot in the middle of the head side pressing plate to be engaged with the internal hole on the head side of the steel plate, the head ends of the two fixation screws are respectively arranged in two holes in the middle of the tail side of the steel plate, the tail side pressing plate is pressed on the end faces of the other two fixation screws, and the countersunk head locking screw passes through the internal hole in the middle of the tail side pressing plate to be engaged with the internal round hole on the tail side of the steel plate. The device meets the anatomical characteristics of the lumbosacral segment of the spine, meets the biomechanical requirements of the part, is an ideal internal fixing device for the anterior path of the 5 sacral 1 segment of the spine, and is not suitable for fixing the upper and lower segments of the spine after the orthopedic reduction of the spine.
Can twine fixedly with the steel wire to upper and lower section screw after orthopedic reduction of backbone orthopaedic operation among the prior art, nevertheless steel wire itself is flexible, and is unable firm fixed, the utility model provides a fixed steel sheet of combination formula from top to bottom, fixed strength is stronger, and the centre is connected with a buckle simultaneously, can pressurize simultaneously, makes the correction of kyphosis more stable, then can die as required lock, reinforces structural stability, is favorable to the stability of patient's postoperative backbone.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a screw fixation steel sheet in backbone orthopedics to solve the above-mentioned technical problem who provides.
The embodiment of the utility model provides an adopt following technical scheme: including first locking chamber, second locking chamber, locking hook, locking subassembly and fixed steel sheet, first locking chamber and second locking chamber are the symmetry and set up, be equipped with the slip opening on the first locking chamber, the locking hook is equipped with two, two the locking hook symmetry respectively sets up the lower extreme in first locking chamber and second locking chamber, the locking subassembly passes first locking chamber and second locking chamber, fixed steel sheet is equipped with two, two fixed steel sheet symmetry sets up the below in first locking chamber and second locking chamber.
Furthermore, the inside in first locking chamber and second locking chamber is hollow setting, be equipped with the spring on the inner chamber wall in first locking chamber, the one end in second locking chamber is passed the slip opening and is connected on the spring.
Furthermore, the first locking cavity and the second locking cavity are both provided with through grooves.
Furthermore, the locking assembly comprises a locking bolt and a locking nut, the locking bolt penetrates through the through grooves in the first locking cavity and the second locking cavity, the locking nut is sleeved on the locking bolt, the locking nut and the locking bolt are in threaded connection, and two fixing steel plates are provided with two nail holes.
Furthermore, two the side of fixed steel sheet all is equipped with the fixed slot, two the contact surface of locking hook and two fixed slots all is equipped with anti-skidding line and is in the mating state with two fixed slots.
The embodiment of the utility model provides an above-mentioned at least one technical scheme who adopts can reach following beneficial effect:
one of which, the utility model discloses the product is behind the backbone with two fixed steel sheet fixed position that resets departments, hook the fixed slot of one of them fixed steel sheet with the locking hook in first locking chamber, outside end through pull second locking chamber, at this moment, second locking chamber toward first locking chamber external motion, when the distance between the interval of the locking hook on first locking chamber and the second locking chamber and the fixed slot of two fixed steel sheets is basically equal, hook the fixed slot of another fixed steel sheet with the locking hook on the second locking chamber, thereby make the locking hook on first locking chamber and the second locking chamber press from both sides two fixed steel sheets tightly, at this moment fix first locking chamber and second locking chamber through locking assembly, thereby will fix the steel sheet and lock, strengthen structural stability, be favorable to the stability of patient's postoperative backbone. The spring through setting up can play the effect of preliminary taut fixed steel sheet, is convenient for adjust the distance between the locking hook according to the distance between the fixed steel sheet, makes things convenient for the operation in the operation, and has good stability.
And secondly, the utility model discloses a two the contact surface of locking hook and two fixed slots is in the matching state to strengthen structural stability, be favorable to the stability of patient's postoperative backbone.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a disassembled view of the first and second lock cavities of the present invention;
fig. 3 is a schematic structural view of a first locking cavity and a second locking cavity in the present invention;
fig. 4 is a schematic structural view of the first locking chamber, the second locking chamber and the locking assembly of the present invention.
Reference numerals
The locking mechanism comprises a first locking cavity 1, a sliding opening 11, a spring 12, a through groove 13, a second locking cavity 2, a locking hook 3, a locking assembly 4, a locking bolt 41, a locking nut 42, a fixing steel plate 5, a fixing groove 51 and a nail hole 52.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The embodiment of the utility model provides a screw fixation steel sheet in spinal column orthopedics, including first locking chamber 1, second locking chamber 2, locking hook 3, locking Assembly 4 and fixed steel sheet 5, first locking chamber 1 and second locking chamber 2 are the symmetry setting, be equipped with sliding opening 11 on the first locking chamber 1, locking hook 3 is equipped with two, two locking hook 3 symmetry setting is at the lower extreme in first locking chamber 1 and second locking chamber 2 respectively, locking Assembly 4 passes first locking chamber 1 and second locking chamber 2, fixed steel sheet 5 is equipped with two, two fixed steel sheet 5 symmetry sets up in the below in first locking chamber 1 and second locking chamber 2, and this device can be adjusted according to the required fixed position of patient to be applicable to the required size of different patients, and be favorable to the stability of patient postoperative.
Preferably, the inside of first locking chamber 1 and second locking chamber 2 is hollow setting, be equipped with spring 12 on the inner chamber wall of first locking chamber 1, the one end of second locking chamber 2 passes slide opening 11 and connects on spring 12.
Preferably, the first locking cavity 1 and the second locking cavity 2 are provided with through slots 13, and the through slots 13 are provided to allow the locking assembly 4 to pass through, so as to lock the first locking cavity 1 and the second locking cavity 2.
Preferably, the locking assembly 4 includes a locking bolt 41 and a locking nut 42, the locking bolt 41 passes through the through groove 13 on the first locking cavity 1 and the second locking cavity 2, the locking nut 42 is sleeved on the locking bolt 41, the locking nut 42 is in threaded connection with the locking bolt 41, after the first locking cavity 1 and the second locking cavity 2 are adjusted, the fixing steel plate 5 is clamped by the two locking hooks 3, and then the locking nut 42 is rotated, so that the first locking cavity 1 and the second locking cavity 2 are locked.
Preferably, two the side of fixed steel sheet 5 all is equipped with fixed slot 51, two locking hook 3 all is equipped with anti-skidding line and is in the matched state with two fixed slot 51's contact surface, two all be equipped with two nail holes 52 on the fixed steel sheet 5, can make the screw pass through nail hole 52 to fixing steel sheet 5, through two locking hook 3 is in the matched state with two fixed slot 51's contact surface, thereby strengthens structural stability, is favorable to the stability of patient's postoperative backbone.
The using method of the device comprises the following steps: after orthopedic reduction of the spinal column, a fixing steel plate 5 is respectively fixed on the upper and lower segments of the spinal column at the reduction position, screws are placed into the spinal column through nail holes 52 on the fixing steel plate 5 to fix the fixing steel plate 5, then the locking hooks 3 of the first locking cavity 1 are hooked on the fixing grooves 51 of one of the fixing steel plates 5, the outer side end of the second locking cavity 2 is pulled, at this time, the second locking cavity 2 moves towards the outside of the first locking cavity 1, when the distance between the locking hooks 3 on the first locking cavity 1 and the second locking cavity 2 is basically equal to the distance between the fixing grooves 51 of the two fixing steel plates 5, the locking hooks 3 on the second locking cavity 2 are hooked on the fixing grooves 51 of the other fixing steel plate 5, so that the two fixing steel plates 5 are clamped by the locking hooks 3 on the first locking cavity 1 and the second locking cavity 2, at this time, the first locking cavity 1 and the second locking cavity 2 are fixed through the locking assembly 4, thereby the fixing steel plates 5 are locked, the structural stability is enhanced, the post-operation stability of the spinal column of a patient is facilitated, and the operation distance between the fixing steel plates 5 is adjusted conveniently, and the operation distance is good.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a screw fixation steel plate in spinal column orthopedics, its characterized in that, includes first locking chamber (1), second locking chamber (2), locking hook (3), locking Assembly (4) and fixed steel sheet (5), first locking chamber (1) and second locking chamber (2) are the symmetry and set up, be equipped with sliding opening (11) on first locking chamber (1), locking hook (3) are equipped with two, two locking hook (3) symmetry respectively set up the lower extreme in first locking chamber (1) and second locking chamber (2), locking Assembly (4) pass first locking chamber (1) and second locking chamber (2), fixed steel sheet (5) are equipped with two, two fixed steel sheet (5) symmetry set up the below in first locking chamber (1) and second locking chamber (2).
2. The screw fixing steel plate for spinal column orthopaedics according to claim 1, characterized in that the first locking cavity (1) and the second locking cavity (2) are arranged in a hollow way, the inner cavity wall of the first locking cavity (1) is provided with a spring (12), and one end of the second locking cavity (2) passes through the sliding opening (11) and is connected to the spring (12).
3. The screw fixation plate of claim 1 or 2, wherein the first locking cavity (1) and the second locking cavity (2) are provided with through grooves (13).
4. The screw fixation plate of claim 3, wherein the locking assembly (4) comprises a locking bolt (41) and a locking nut (42), the locking bolt (41) passes through the through grooves (13) of the first locking cavity (1) and the second locking cavity (2), the locking nut (42) is sleeved on the locking bolt (41), and the locking nut (42) is in threaded connection with the locking bolt (41).
5. The screw fixing steel plate for spinal orthopaedics according to claim 1 is characterized in that the side ends of the two fixing steel plates (5) are provided with fixing grooves (51), the contact surfaces of the two locking hooks (3) and the two fixing grooves (51) are provided with anti-skid threads and are matched with the two fixing grooves (51), and the two fixing steel plates (5) are provided with two screw holes (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586892.4U CN218075168U (en) | 2022-06-21 | 2022-06-21 | Screw fixing steel plate in spinal column orthopedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586892.4U CN218075168U (en) | 2022-06-21 | 2022-06-21 | Screw fixing steel plate in spinal column orthopedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218075168U true CN218075168U (en) | 2022-12-20 |
Family
ID=84476933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221586892.4U Active CN218075168U (en) | 2022-06-21 | 2022-06-21 | Screw fixing steel plate in spinal column orthopedics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218075168U (en) |
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2022
- 2022-06-21 CN CN202221586892.4U patent/CN218075168U/en active Active
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