CN204072290U - This Nat fracture fixing apparatus - Google Patents
This Nat fracture fixing apparatus Download PDFInfo
- Publication number
- CN204072290U CN204072290U CN201420595521.1U CN201420595521U CN204072290U CN 204072290 U CN204072290 U CN 204072290U CN 201420595521 U CN201420595521 U CN 201420595521U CN 204072290 U CN204072290 U CN 204072290U
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- China
- Prior art keywords
- hand grip
- fixedly connected
- back handle
- tensioning
- lower fixed
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Abstract
The utility model discloses a kind of Ben Naite fracture fixing apparatus, it is characterized in that being provided with front hand grip, back handle, hinge, tensioning locking system, upper motion bar, lower fixed bar, driven wheel, front retainer and rear localizer, front hand grip is connected through tensioning locking system with back handle bottom, back handle upper end intersects with lower fixed bar rear end and is fixedly connected with, lower end is connected with tensioning locking system, front hand grip upper end is fixedly connected with driven wheel, lower end is connected with tensioning locking system, the hinge of front hand grip through driven wheel center and back handle are hinged, described upper motion bar lower end and lower fixed bar are slidably connected, rear end is meshed with driven wheel, front end edge disalignment is fixedly connected with rear localizer rear end after upwards bending and extending, rear localizer front end is provided with top, lower fixed bar front end is fixedly connected with front retainer rear end, and front retainer front end is fixedly connected with apical tooth, has novel structure, reset accurately, damage surface is little, operating time is short, the advantages such as patient's misery is little.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically a kind of Ben Naite fracture fixing apparatus for fixing metacarpal joint.
Background technology
This Nat fracture refers to that the fracture of the 1st metacarpal bone basilar part merges the Dislocation and subluxation of the 1st carpometacarpal joints, it is a kind of fracture of extremely unstable, described in first time in 1882 by Bennett, be a kind of intra-articular fracture relating to articular surface, belong to the common fracture of hand.Carpometacarpal joint of thumb is the sellar joint be made up of the 1st metacarpal bone and os multangulum majus, stablizes flexibly.When the 1st metacarpal bone is in slight flexing position, when being subject to the External Force Acting on the longitudinal axis, producing the intra-articular fracture of a fracture line by interior oblique outer lower side in the 1st metacarpal bone basilar part, form a leg-of-mutton bone block in inside base portion.This fracture has a strong impact on palmar opposition of thumb and abduction activity.Although a lot of for the Therapeutic Method present stage of Ben Naite fracture, rule are three kinds of forms substantially: (1) closed reduction percutaneous pinning internal fixtion, (2) open reduction and Kirschner wire fixation, (3) closed reduction extenal fixation.Regardless of which kind of Therapeutic Method, displacement is less than to the fracture of 1mm, osteoarthritis incidence rate at a specified future date is quite high, brings great pain to patient.By analyzing the reason of losing that resets, in operation, sclerite is less, and sclerite position is comparatively dark, better may appear fracture, but need to peel off more tissue from Volar approach, and damage is large.Stop due to first metacarpal bone from dorsal part approach, appear fracture difficulty, during reset, better reset can be reached, but in reseting procedure, maintain the too difficulty that resets, and the loss that resets in fixation procedure is difficult to avoid, for this situation, definite needs are a kind of can also maintain the instrument resetted by active homing.Therefore be studied, and develop this positor, to fracture anatomical reduction, and maintain reset and be conducive to good fixing, fracture can better being recovered, avoid the generation of osteoarthritis.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provides a kind of novel structure, resets accurately, damage surface is little, easy to operate, operating time is short, the painful little Ben Naite fracture fixing apparatus of patient.
This utility model solves the technical scheme that its technical problem adopts:
A kind of Ben Naite fracture fixing apparatus, it is characterized in that being provided with front hand grip, back handle, hinge, tensioning locking system, upper motion bar, lower fixed bar, driven wheel, front retainer and rear localizer, described front hand grip is connected through tensioning locking system with back handle bottom, described back handle upper end intersects with lower fixed bar rear end and is fixedly connected with, lower end is connected with tensioning locking system, described front hand grip upper end is fixedly connected with driven wheel, lower end is connected with tensioning locking system, the hinge of described front hand grip through driven wheel center and back handle are hinged, described upper motion bar bottom center is provided with tooth bar, both sides are provided with slide rail, the slideway that described upper motion bar lower end is provided with through slide rail and lower fixed bar upper end is slidably connected, rear end is meshed with driven wheel through tooth bar, front end edge disalignment is fixedly connected with rear localizer rear end after upwards bending and extending, described rear localizer front end is provided with top, described top tapered, described lower fixed bar front end is fixedly connected with front retainer rear end, described front retainer front end is fixedly connected with apical tooth, the spear point of described apical tooth is corresponding with top, be beneficial to metacarpal bone outside by spear point with top the bone block of fracturing is fixed after, row locking pin is fixed again, reach surgical wound surface little, operating time is short, patient's misery is little, easy to operate effect.
This utility model can be provided with inserting needle locating ring on the downside of localizer in the rear, described inserting needle locating ring through connecting rod with after localizer be fixedly connected with, the centrage of described inserting needle locating ring and spear point on the same line, act on accurately to reach reset.
This utility model can be provided with width fine setting device between front retainer and lower fixed bar, it comprises adjusting sleeve, lock-screw and gib block, described lower fixed bar both sides are respectively equipped with gib block, described adjusting sleeve inwall is provided with the gathering sill matched with gib block, described adjusting sleeve front end is fixedly connected with front retainer, lead through gib block and gathering sill after rear portion and lower fixed bar grafting and slide, corresponding with top all the time to ensure the spear point of the apical tooth of front retainer front end, described adjusting sleeve is fixedly connected with lower fixed bar through lock-screw, be beneficial to the metacarpal bone bone block adjustment spear point according to different size and top spacing, reach the effect of applicable different patient.
Tensioning locking system described in the utility model comprises locking tooth bar, left tensioning leaf spring, right tensioning leaf spring, jointed shaft and torsion spring, described front hand grip and back handle medial wall are provided with detent, described left tensioning leaf spring and right tensioning leaf spring are located between front hand grip and back handle, described left tensioning leaf spring upper end is hinged through hinge and torsion spring and right tensioning leaf spring, the detent of described left tensioning leaf spring its lower end and front hand grip inwall under the effect of torsion spring is inconsistent, the detent of described right tensioning leaf spring its lower end and back handle inwall under the effect of torsion spring is inconsistent, described locking tooth bar one end face is dentation, described locking tooth bar one end and back handle are hinged, the other end plugs through between cog and front hand grip end, to reach the effect of bone block location, location.
This utility model also can be provided with place kick between top and rear localizer, is beneficial to the degree of depth ensureing top embedding.
This utility model, owing to adopting said structure, has novel structure, resets accurately, damage surface is little, easy to operate, operating time is short, the painful advantage such as little of patient.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial schematic diagram of top in Fig. 1, inserting needle locating ring and place kick.
Reference numeral: front hand grip 1, back handle 2, hinge 3, upper motion bar 4, lower fixed bar 5, driven wheel 6, front retainer 7, rear localizer 8, top 9, apical tooth 10, spear point 11, inserting needle locating ring 12, adjusting sleeve 13, lock-screw 14, gib block 15, locking tooth bar 16, left tensioning leaf spring 17, right tensioning leaf spring 18, jointed shaft 19, torsion spring 20, place kick 21.
Detailed description of the invention:
Below in conjunction with accompanying drawing, this utility model is further illustrated:
As shown in drawings, a kind of Ben Naite fracture fixing apparatus, it is characterized in that being provided with front hand grip 1, back handle 2, hinge 3, tensioning locking system, upper motion bar 4, lower fixed bar 5, driven wheel 6, front retainer 7 and rear localizer 8, described front hand grip 1 is connected through tensioning locking system with back handle 2 bottom, described back handle 2 upper end intersects with lower fixed bar 5 rear end and is fixedly connected with, lower end is connected with tensioning locking system, described front hand grip 1 upper end is fixedly connected with driven wheel 6, lower end is connected with tensioning locking system, the hinge 3 of described front hand grip 1 through driven wheel 6 center is hinged with back handle 2, described upper motion bar 4 bottom center is provided with tooth bar, both sides are provided with slide rail, the slideway that described upper motion bar 4 lower end is provided with through slide rail and lower fixed bar 5 upper end is slidably connected, rear end is meshed with driven wheel 6 through tooth bar, described upper motion bar 4 front end edge disalignment is fixedly connected with rear localizer 8 rear end after upwards bending and extending, described rear localizer 8 front end is provided with top 9, described top 9 tapered, described lower fixed bar 5 front end is fixedly connected with front retainer 7 rear end, described front retainer 7 front end is fixedly connected with apical tooth 10, the spear point 11 of described apical tooth 10 is 9 corresponding with top, be beneficial to after the bone block of fracturing is fixed with top 9 by spear point 11 by metacarpal bone outside, row locking pin is fixed again, reach surgical wound surface little, operating time is short, patient's misery is little, easy to operate effect.
This utility model can be provided with inserting needle locating ring 12 on the downside of localizer 8 in the rear, described inserting needle locating ring 12 through connecting rod with after localizer 8 be fixedly connected with, the centrage of described inserting needle locating ring 12 and spear point 11 on the same line, act on accurately to reach reset.
This utility model can be provided with width fine setting device between front retainer 7 and lower fixed bar 5, it comprises adjusting sleeve 13, lock-screw 14 and gib block 15, described lower fixed bar 5 both sides are respectively equipped with gib block, described adjusting sleeve inwall is provided with the gathering sill matched with gib block 15, described adjusting sleeve 13 front end is fixedly connected with front retainer 7, lead through gib block 15 and gathering sill after rear portion and the grafting of lower fixed bar 5 and slide, 9 corresponding with top all the time with the spear point 11 ensureing the apical tooth 10 of front retainer 7 front end, described adjusting sleeve 13 is fixedly connected with lower fixed bar 5 through lock-screw 14, be beneficial to the spacing of the metacarpal bone bone block adjustment spear point 11 and top 9 according to different size, reach the effect of applicable different patient.
Tensioning locking system described in the utility model comprises locking tooth bar 16, left tensioning leaf spring 17, right tensioning leaf spring 18, jointed shaft 19 and torsion spring 20, described front hand grip 1 and back handle 2 medial wall are provided with detent, described left tensioning leaf spring 17 and right tensioning leaf spring 18 are located between front hand grip 1 and back handle 2, described left tensioning leaf spring 17 upper end is hinged through hinge and torsion spring and right tensioning leaf spring 18, the detent of described left tensioning leaf spring 17 its lower end and front hand grip 1 inwall under the effect of torsion spring is inconsistent, the detent of described right tensioning leaf spring 18 its lower end and back handle 2 inwall under the effect of torsion spring is inconsistent, described locking tooth bar 16 1 end face is dentation, described locking tooth bar 16 one end and back handle 2 are hinged, the other end plugs through between cog and front hand grip 1 end, to reach the effect of bone block location, location.
This utility model also can be provided with place kick 21 between top 9 and rear localizer 8, is beneficial to ensure top 9 degree of depth embedded.
This utility model is when Clinical practice, for fracture site in carpometacarpal joint of thumb, doctor holds on the other hand front hand grip and back handle and extrudes front hand grip and back handle, make motion bar reach in driving gear drives, drive top and spear point relative motion, and withstand the interior fracture site of carpometacarpal joint of thumb, the bone block of fracture is made to hold out against reset under the effect of top and spear point, after holding out against, by the locking tooth bar in tensioning locking system, front hand grip and back handle are fixed, by inserting needle locating ring, draw point is injected in the bone block of interior fracture again, resetted, be very easy to hands art, also greatly reduce the misery of patient simultaneously.
In operation, can be different for the width of the carpometacarpal joint of thumb of patient, adjustment width fine setting device, is beneficial to adapt to different patients.
This utility model, owing to adopting said structure, has novel structure, resets accurately, damage surface is little, easy to operate, operating time is short, the painful advantage such as little of patient.
Claims (5)
1. Yi Zhong Ben Naite fracture fixing apparatus, it is characterized in that being provided with front hand grip, back handle, hinge, tensioning locking system, upper motion bar, lower fixed bar, driven wheel, front retainer and rear localizer, described front hand grip is connected through tensioning locking system with back handle bottom, described back handle upper end intersects with lower fixed bar rear end and is fixedly connected with, lower end is connected with tensioning locking system, described front hand grip upper end is fixedly connected with driven wheel, lower end is connected with tensioning locking system, the hinge of described front hand grip through driven wheel center and back handle are hinged, described upper motion bar bottom center is provided with tooth bar, both sides are provided with slide rail, the slideway that described upper motion bar lower end is provided with through slide rail and lower fixed bar upper end is slidably connected, rear end is meshed with driven wheel through tooth bar, front end edge disalignment is fixedly connected with rear localizer rear end after upwards bending and extending, described rear localizer front end is provided with top, described top tapered, described lower fixed bar front end is fixedly connected with front retainer rear end, described front retainer front end is fixedly connected with apical tooth, the spear point of described apical tooth is corresponding with top.
2. a kind of Ben Naite fracture fixing apparatus according to claim 1, it is characterized in that being provided with inserting needle locating ring on the downside of described rear localizer, described inserting needle locating ring through connecting rod with after localizer be fixedly connected with, the centrage of described inserting needle locating ring and spear point are on the same line.
3. a kind of Ben Naite fracture fixing apparatus according to claim 1, it is characterized in that being provided with width fine setting device between described front retainer and lower fixed bar, it comprises adjusting sleeve, lock-screw and gib block, described lower fixed bar both sides are respectively equipped with gib block, described adjusting sleeve inwall is provided with the gathering sill matched with gib block, described adjusting sleeve front end is fixedly connected with front retainer, leads slide after rear portion and lower fixed bar grafting through gib block and gathering sill.
4. a kind of Ben Naite fracture fixing apparatus according to claim 1, it is characterized in that described tensioning locking system comprises locking tooth bar, left tensioning leaf spring, right tensioning leaf spring, jointed shaft and torsion spring, described front hand grip and back handle medial wall are provided with detent, described left tensioning leaf spring and right tensioning leaf spring are located between front hand grip and back handle, described left tensioning leaf spring upper end is hinged through hinge and torsion spring and right tensioning leaf spring, the detent of described left tensioning leaf spring its lower end and front hand grip inwall under the effect of torsion spring is inconsistent, the detent of described right tensioning leaf spring its lower end and back handle inwall under the effect of torsion spring is inconsistent, described locking tooth bar one end face is dentation, described locking tooth bar one end and back handle are hinged, the other end plugs through between cog and front hand grip end.
5. a kind of Ben Naite fracture fixing apparatus according to claim 1, is characterized in that being provided with place kick between described top and rear localizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595521.1U CN204072290U (en) | 2014-10-15 | 2014-10-15 | This Nat fracture fixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595521.1U CN204072290U (en) | 2014-10-15 | 2014-10-15 | This Nat fracture fixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204072290U true CN204072290U (en) | 2015-01-07 |
Family
ID=52165062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595521.1U Expired - Fee Related CN204072290U (en) | 2014-10-15 | 2014-10-15 | This Nat fracture fixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204072290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224294A (en) * | 2014-10-15 | 2014-12-24 | 王晨霖 | Bennett fracture fixing device |
-
2014
- 2014-10-15 CN CN201420595521.1U patent/CN204072290U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224294A (en) * | 2014-10-15 | 2014-12-24 | 王晨霖 | Bennett fracture fixing device |
| CN104224294B (en) * | 2014-10-15 | 2016-04-27 | 山东省文登整骨医院 | This Nat fracture fixing apparatus |
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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: 20150107 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |