CN202554048U - Resetting forceps for atlas lateral mass fracture - Google Patents
Resetting forceps for atlas lateral mass fracture Download PDFInfo
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- CN202554048U CN202554048U CN2012202161714U CN201220216171U CN202554048U CN 202554048 U CN202554048 U CN 202554048U CN 2012202161714 U CN2012202161714 U CN 2012202161714U CN 201220216171 U CN201220216171 U CN 201220216171U CN 202554048 U CN202554048 U CN 202554048U
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- lateral mass
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Abstract
Resetting forceps for atlas lateral mass fracture comprises two forcep arms, front ends of the forcep arms are oppositely bent, the outline shape of an end face of the front end of each forcep arm is matched with the shape of the lateral border of each atlas lateral mass, and forcep teeth are arranged inside the end face of the front end of each forcep arm. In a posterior atlantoaxial fusion, before screws are arranged, front ends of the two forcep arms are used for the resetting of lateral mass fracture separation. The opening angle of the forcep arms can be fixed on the current position at any time by a stopping mechanism arranged between handle portions of rear portions of the two forcep arms. Due to the facts that the shape of end faces of the front ends of the two forcep arms is matched with that of the lateral borders of atlas lateral masses, and the forcep teeth are arranged inside the end faces of the front ends of the two forcep arms, thus the resetting forceps can stably clamp the lateral mass fracture separation part. The thickness of the front ends of the two forcep arms is larger than that of the other parts of the forcep arms, so that the contact surface of the end faces of the front ends of the forcep arms and the atlas lateral masses is increased. According to the resetting forceps for the atlas lateral mass fracture, the immediate resetting in atlas lateral mass fracture separation operation process is achieved, the risk that a fracture broken end is further separated and displaced when an inner fixing system is arranged is prevented, and the fracture end is favorable for being healed.
Description
Technical field:
This utility model relates to the mankind life article field, relates in particular to medical apparatus and instruments, particularly is used for the temporary fixed system of the atlas burst lateral mass reduction of the fracture, and concrete is a kind of reduction forceps that is used for the lateral mass of atlas fracture.
Background technology:
The atlas damage accounts for 2～13% of cervical spine injury, 1.3% of all spinal injuries.Typical atlas bursting fracture has two fracture lines respectively at the forward and backward bow of atlas, demonstrates four fracture presentations, atypical bursting fracture maybe be also with the fracture of lateral mass of atlas.The atlas bursting fracture is if with the transverse ligament damage, promptly be referred to as unstability atlas bursting fracture, in case take place, the mechanical stability of articulatio atlantoepistrophica will receive serious destruction, and the atlantoaxial dislocation that brings thus is serious threat to patient's life.Although non-operative treatment can make the part patient obtain to cure, there is viewpoint to think that non-operative treatment can not make articulatio atlantoepistrophica obtain effective mechanical stability, Atlantoaxial long-term shakiness, entail dangers to patient life.So row way of escape extensive region dentata fusion was a kind of certain efficacious therapy method after articulatio atlantoepistrophica resetted.
In the prior art, the mode of way of escape extensive region dentata fusion mainly contains: (1) way of escape is through articulatio atlantoepistrophica screw technique for fixing, and this technology has good anti-turning effort, but anti-bend and stretch do relatively poor, and can't the fixed structure plant bone mass.(2) way of escape extensive region dentata LOCATION OF PEDICLE SCREW FIXATION technology, when through the articulatio atlantoepistrophica screw is fixing can't successful implementation the time, this technology can be used as the substitute technology of the way of escape through the joint screw fixation technology.Because the atlas bursting fracture exists serious lateral mass to separate laterally more, the risk of lateral mass shift separation when in its operative process, all existing internal fixation to insert in case occur, then possibly brought internal fixation failure and postoperative fracture healing difficulty.Therefore, many through lateral mass displacement problem in the following method solution art in operation technique: (1), selection are than the entry point in the outside, to avoid atlas fracture of the vertebral arch end; (2), have 5 ° leaning angle with ailhead and insert screw, so that the horizontal pressurization lateral mass far-end displacement fracture that resets; (3), screw can select long size, is advisable to reach the lateral mass of atlas frontal cortex, be more conducive to vertically lift recover displacement fracture and extensive region dentata anterior dislocation.But even through above method, postoperative is followed up a case by regular visits to and is still existed fracture to separate the case that causes disunion.
Summary of the invention:
The purpose of this utility model is to provide a kind of reduction forceps that is used for the lateral mass of atlas fracture, and the described this reduction forceps that is used for the lateral mass of atlas fracture will solve the lateral mass that resets in the prior art atlas fracture operation and be shifted, causes postoperative to be difficult for the technical problem of healing easily.
This reduction forceps that is used for the lateral mass of atlas fracture of this utility model; Comprise two tong arms; Described two tong arms intersect the back through the bearing pin connection at the middle part, the rear portion of any tong arm has included handle portion, wherein; The front end of described two tong arms is crooked in opposite directions, is respectively arranged with inner sunken face in the front end end face of two tong arms.
Further, the contour shape of the front end end face of two tong arms matches with lateral mass of atlas lateral border shape.
Further, be provided with the pincers tooth of two above numbers in the front end end face of two tong arms separately.
Further, in the front end end face of any tong arm, the shape of the line that the summit of described pincers tooth constitutes matches with lateral mass of atlas lateral border shape.
Further, any pincers tooth is all along the thickness direction setting of tong arm front end.
Further, the front portion of any tong arm all includes a root and a forearm separately, and in the front portion of any tong arm, described root is connected through the sagittal articulation structure with described forearm.
Further, described root is connected through a bolt with described forearm.
Further; Be provided with stopping mechanism between the handle portion at two tong arm rear portions; Described stopping mechanism comprises the fixed strip and the ratchet that have continuous lobe, and described ratchet is arranged on the handle portion through a bearing pin, and this handle portion is provided with spring; Described fixed strip is fixedly connected on another handle portion, and described spring is biased in ratchet between any two the continuous lobes on the fixed strip.
Further, the thickness of the front end of two tong arms is all greater than the thickness of remainder in the tong arm.
The operation principle of this utility model is: in the dentata fusion of way of escape extensive region, before inserting screw, the front end that utilizes two tong arms separates the lateral mass fracture and resets.Stopping mechanism between the handle portion at two tong arm rear portions is fixed on current location at any time with the opening angle of tong arm.The end surface shape of two tong arm front ends matches with lateral mass of atlas lateral border shape, and is provided with the pincers tooth in the end face of two tong arm front ends, but stable holding lateral mass fracture separating part.The thickness of the front end of two tong arms has increased the contact surface of tong arm front end end face and lateral mass of atlas all greater than the thickness of remainder in the tong arm.
This utility model and prior art are compared, and its effect is actively with tangible.This utility model has been realized that lateral mass of atlas is fractured and has been resetted immediately in the isolating art, smooth surface, and incisura is little; Simple in structure; Easy to use, have favorable compatibility with way of escape C1-2 fixed system of the prior art, can be in the dentata fusion of way of escape extensive region, before screw inserts; Separation well resets to the lateral mass fracture; Prevented that effectively internal fixation system from causing the risk of the further shift separation of fracture site when inserting, and helped fracture end healing, for the treatment of unstability atlas bursting fracture provides a kind of effective reduction of the fracture technology.
Description of drawings:
Fig. 1 is the structural representation of the reduction forceps that is used for the lateral mass of atlas fracture of this utility model.
Fig. 2 is the side view of the reduction forceps that is used for the lateral mass of atlas fracture of this utility model.
Fig. 3 is the enlarged diagram of the B portion among Fig. 1.
The specific embodiment:
Embodiment 1:
Like Fig. 1, Fig. 2 and shown in Figure 3; The reduction forceps that is used for the lateral mass of atlas fracture of this utility model comprises two tong arms, and described two tong arms intersect the back through bearing pin 4 connections at the middle part; The rear portion of any tong arm has included handle portion 1; Wherein, the front end of described two tong arms is crooked in opposite directions, is respectively arranged with inner sunken face in the front end end face of two tong arms.
Further, the contour shape of the front end end face of two tong arms matches with lateral mass of atlas lateral border shape.
Further, be provided with the pincers tooth 31 of two above numbers in the front end end face of two tong arms separately.
Further, in the front end end face of any tong arm, the shape of the line that the summit of described pincers tooth 31 constitutes matches with lateral mass of atlas lateral border shape.
Further, any pincers tooth 31 is all along the thickness direction setting of tong arm front end.
Further, the front portion of any tong arm all includes a root 2 and a forearm 3 separately, and in the front portion of any tong arm, described root 2 is connected through sagittal articulation structure 5 with described forearm 3.
Further, described root 2 is connected through a bolt with described forearm 3.
Further; Be provided with stopping mechanism between the handle portion 1 at two tong arm rear portions; Described stopping mechanism comprises the fixed strip 6 and the ratchet 7 that have continuous lobe, and described ratchet 7 is arranged on the handle portion 1 through a bearing pin, and this handle portion 1 is provided with spring 8; Described fixed strip 6 is fixedly connected on another handle portion 1, and described spring 8 is biased in ratchet 7 between any two the continuous lobes on the fixed strip 6.
Further, the thickness of the front end of two tong arms is all greater than the thickness of remainder in the tong arm.
The operation principle of present embodiment is: in the dentata fusion of way of escape extensive region, before inserting screw, the front end that utilizes two tong arms separates the lateral mass fracture and resets.Stopping mechanism between the handle portion 1 at two tong arm rear portions is fixed on current location at any time with the opening angle of tong arm.The end surface shape of two tong arm front ends matches with lateral mass of atlas lateral border shape, and is provided with pincers tooth 31 in the end face of two tong arm front ends, but stable holding lateral mass fracture separating part.The thickness of the front end of two tong arms has increased the contact surface of tong arm front end end face and lateral mass of atlas all greater than the thickness of remainder in the tong arm.
Claims (9)
1. one kind is used for the reduction forceps that lateral mass of atlas is fractured; Comprise two tong arms; Described two tong arms intersect the back through the bearing pin connection at the middle part; The rear portion of any tong arm has included handle portion, it is characterized in that: the front end of described two tong arms is crooked in opposite directions, is respectively arranged with inner sunken face in the front end end face of two tong arms.
2. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 1, it is characterized in that: the contour shape of the front end end face of two tong arms matches with lateral mass of atlas lateral border shape.
3. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 1 is characterized in that: the pincers tooth that is provided with two above numbers in the front end end face of two tong arms separately.
4. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 3 is characterized in that: in the front end end face of any tong arm, the shape of the line that the summit of described pincers tooth constitutes matches with lateral mass of atlas lateral border shape.
5. the reduction forceps that is used for lateral mass of atlas fracture as claimed in claim 1 is characterized in that: any pincers tooth is all along the thickness direction setting of tong arm front end.
6. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 1; It is characterized in that: the front portion of any tong arm all includes a root and a forearm separately; In the front portion of any tong arm, described root is connected through the sagittal articulation structure with described forearm.
7. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 6, it is characterized in that: described root is connected through a bolt with described forearm.
8. the reduction forceps that is used for the lateral mass of atlas fracture as claimed in claim 1; It is characterized in that: be provided with stopping mechanism between the handle portion at two tong arm rear portions; Described stopping mechanism comprises the fixed strip and the ratchet that have continuous lobe; Described ratchet is arranged on the handle portion through a bearing pin; This handle portion is provided with spring, and described fixed strip is fixedly connected on another handle portion, and described spring is biased in ratchet between any two the continuous lobes on the fixed strip.
9. the reduction forceps that is used for lateral mass of atlas fracture as claimed in claim 1 is characterized in that: the thickness of the front end of two tong arms is all greater than the thickness of remainder in the tong arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202161714U CN202554048U (en) | 2012-05-14 | 2012-05-14 | Resetting forceps for atlas lateral mass fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202161714U CN202554048U (en) | 2012-05-14 | 2012-05-14 | Resetting forceps for atlas lateral mass fracture |
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| Publication Number | Publication Date |
|---|---|
| CN202554048U true CN202554048U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202161714U Expired - Fee Related CN202554048U (en) | 2012-05-14 | 2012-05-14 | Resetting forceps for atlas lateral mass fracture |
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| CN (1) | CN202554048U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631236A (en) * | 2012-05-14 | 2012-08-15 | 中国人民解放军第二军医大学 | Reset forceps for healing massa lateralis atlantis fractures |
| CN104490459A (en) * | 2015-01-09 | 2015-04-08 | 四川大学华西医院 | Atlantoaxial dislocation reduction and internal fixation device |
| CN106175897A (en) * | 2016-08-25 | 2016-12-07 | 青岛大学附属医院 | A kind of atlantoaxial dislocation reduction fixation device |
-
2012
- 2012-05-14 CN CN2012202161714U patent/CN202554048U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631236A (en) * | 2012-05-14 | 2012-08-15 | 中国人民解放军第二军医大学 | Reset forceps for healing massa lateralis atlantis fractures |
| CN104490459A (en) * | 2015-01-09 | 2015-04-08 | 四川大学华西医院 | Atlantoaxial dislocation reduction and internal fixation device |
| CN104490459B (en) * | 2015-01-09 | 2016-08-17 | 四川大学华西医院 | Atlantoaxial dislocation reduction fixation device |
| CN106175897A (en) * | 2016-08-25 | 2016-12-07 | 青岛大学附属医院 | A kind of atlantoaxial dislocation reduction fixation device |
| CN106175897B (en) * | 2016-08-25 | 2019-07-05 | 青岛大学附属医院 | A kind of atlantoaxial dislocation reduction fixation device |
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| 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: 20121128 Termination date: 20150514 |
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| EXPY | Termination of patent right or utility model |