CN104622552A - Orthopedics department reduction nail locking device - Google Patents
Orthopedics department reduction nail locking device Download PDFInfo
- Publication number
- CN104622552A CN104622552A CN201510014393.6A CN201510014393A CN104622552A CN 104622552 A CN104622552 A CN 104622552A CN 201510014393 A CN201510014393 A CN 201510014393A CN 104622552 A CN104622552 A CN 104622552A
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- CN
- China
- Prior art keywords
- nail
- reduction
- pinning
- screw
- bone
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention discloses an orthopedics department reduction nail locking device used cooperatively with orthopedics department external fixing instruments such as orthopedics department external fixators. The orthopedics department reduction nail locking device mainly comprises a reduction bone nail and a reduction nail locking mechanism, the front end of the reduction bone nail is provided with a thread used for being screwed into the bone, the end portion of the reduction bone nail is provided with a cutting edge, the rear end of the reduction bone nail is provided with a screw rod, and the rear end of the screw rod is provided with a handle. The reduction nail locking mechanism mainly comprises a bone nail sleeve, a groove-shaped clamnailg block, a spacer bush, a locking nail screw, a locking screw nut, a gasket, a screw nut and a screw shaft. Before operation, the orthopedics department reduction nail locking device is fixed on the orthopedics department external fixing instruments firstly; in operation, the reduction bone nail is screwed into the bone of the bone fracture end, when the orthopedics department external fixators pull open the bone fracture end, the bone nail sleeve is screwed, and the bone fracture end alignment is directly adjusted through the reduction bone nail. The orthopedics department reduction nail locking device has the advantages that the operation is easy, convenient and speedy, the alignment is accurate, stable and reliable, and the operation time can be effectively shortened.
Description
Technical field
The present invention relates to orthopedic medical device field.
Background technology
At present, in the treatment of the reduction of the fracture, general many employing nails and pinning mechanism, coordinate external fixator for orthopedics dep to use, nail mainly, is squeezed into skeleton by the function of this nail and pinning mechanism, then use pinning mechanism by locking of bone nails on fixed mount, thus reach the object of fix bone.Fracture end adjustment needs by manual alignment when resetting, and therefore, para-position accuracy rate is low, weak effect and operating time is long.
Summary of the invention
The invention discloses a kind of orthopaedics reduction pinning device, coordinate external fixation used for orthopedics tool to use, overcome above-mentioned defect, it mainly comprises reduction nail and reduction pinning mechanism.
The front end of described reduction nail is provided with the screw thread for screwing in skeleton, its end is provided with cutting edge, rear end is provided with screw rod, described screw rod can be set to the shape seesawed that profile of tooth bar or tooth bar etc. can make its machinery, or install additional on reduction nail be threaded, the mechanism seesawed that profile of tooth etc. can make its machinery, spiro rod rear end is provided with the caudal peduncle for facilitating tool holder to rotate reduction nail.
Described reduction pinning mechanism mainly comprises nail cover, flute profile fixture block, spacer, pinning screw, pinning nut, packing ring, nut, silk axle.
Described flute profile fixture block is provided with open pore, the opening parallel of described open pore is in the axis of open pore, described outward opening extension is provided with open slot, opening cell wall is provided with the screw hole of vertically through two cell walls, the outer surface of two cell walls can be set to inclined-plane, and is reduced gradually to open pore direction relative distance by notch end.
Described spacer is annular sleeve, is provided with through V-shaped groove at annular sleeve one end face.
Described pinning screw front end is provided with screw rod, tail end is provided with ailhead, described ailhead is provided with the locking nail hole perpendicular to screw axis, described locking nail hole is connected to form by two sides by small one and large one holes, this connection can be set to tangent connection, macropore is located at the side near screw rod, and the two ends of described locking nail hole are equipped with the plane perpendicular to locking nail hole.
The cylindrical of described nail cover front end is provided with cannelure, for being stuck in the aperture side of the locking nail hole of described pinning screw, axial relative movement is overlapped with described pinning screw along nail to limit described nail cover, described nail cover front end edge is axially arranged with the open slot of several its wall thickness through, its degree of depth exceedes described cannelure, for clamping reduction nail, the endoporus of described nail cover is through hole, its endoporus is provided with on the position of open slot, the female thread matched with the screw rod of described reset nail, the rear end of described cannelure is provided with handle.
During assembling, first described reduction nail is screwed in described nail cover, again nail cover is loaded the aperture side of described pinning screw, then by described spacer, be inserted in by screw rod one end of described pinning screw, and the V-shaped groove of described spacer is stuck on nail, again by the screw hole of the screw rod of described pinning screw through described flute profile fixture block, then described pinning nut is screwed on described screw rod, but it is not fastening, described pinning nut can be set to the clamp systems such as cam, coordinate pinning screw lock, again described silk axle is inserted the open pore of described flute profile fixture block, and by described packing ring and each two pieces of nut, be placed in open pore two ends respectively, described flute profile fixture block is fixed on described silk axle.
Operation consent, first by a kind of orthopaedics reduction of the present invention pinning device, be fixed on the external fixation used for orthopedics tool such as external fixator for orthopedics dep with retainer ring or support ring by described silk axle and nut, packing ring, also can remove an axle is directly fixed on the bar base part of external fixation used for orthopedics tool by the open pore of described flute profile fixture block, in operation, described reduction nail is screwed in fracture end skeleton, after fracture end pulls open by external fixator for orthopedics dep, rotate described nail cover, directly adjust fracture end para-position by reduction nail.This is simple and efficient to handle, and para-position is accurate and reliable and stable, effectively shortens operating time.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of a kind of orthopaedics reduction of the present invention pinning device;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the enlarged diagram of reduction nail;
Fig. 4 is the enlarged diagram of nail cover;
Fig. 5 is the enlarged diagram of flute profile fixture block;
Fig. 6 is the enlarged diagram of pinning screw;
Fig. 7 is the enlarged diagram of spacer;
In accompanying drawing: 1 reduction nail, 2 nail covers, 3 flute profile fixture blocks, 4 spacers, 5 pinning screws, 6 pinning nuts, 7 packing rings, 8 nuts, 9 axles, the retainer ring of 10 external fixator for orthopedics deps or support ring, 1-1 screw rod, 1-2 caudal peduncle, 2-1 open slot, 2-2 cannelure, 2-3 handle, 3-1 open pore, 3-2 screw hole, 3-3 inclined-plane, 4-1V shape groove, 5-1 locking nail hole.
Detailed description of the invention
Elaborate below in conjunction with the embodiment of accompanying drawing to a kind of orthopaedics reduction of the present invention pinning device.
As shown in Figures 1 to 7, it mainly comprises reduction nail 1 and reduction pinning mechanism to the embodiment of a kind of orthopaedics reduction of the present invention pinning device.
The front end of described reduction nail 1 is provided with the screw thread for screwing in skeleton, and its end is provided with cutting edge, and rear end is provided with screw rod 1-1, and screw rod 1-1 rear end is provided with caudal peduncle 1-2.
Described reduction pinning mechanism mainly comprises nail cover 2, flute profile fixture block 3, spacer 4, pinning screw 5, pinning nut 6, packing ring 7, nut 8, silk axle 9.
Described flute profile fixture block is provided with open pore 3-1, the opening parallel of described open pore 3-1 is in the axis of open pore 3-1, described outward opening extension is provided with open slot, opening cell wall is provided with the screw hole 3-2 of vertically through two cell walls, the outer surface of two cell walls can be set to inclined-plane 3-3, and is reduced gradually to open pore 3-1 direction relative distance by notch end.
Described spacer 4 is annular sleeve, and annular sleeve one end face is provided with through V-shaped groove 4-1.
Described pinning screw 5 front end is provided with screw rod, tail end is provided with ailhead, described ailhead is provided with the locking nail hole 5-1 perpendicular to screw axis, described locking nail hole 5-1 is connected to form by two sides by small one and large one holes, this connection can be set to tangent connection, macropore is located at the side near screw rod, and the two ends of described locking nail hole 5-1 are equipped with the plane perpendicular to locking nail hole 5-1.
The cylindrical that described nail overlaps 2 front ends is provided with cannelure 2-2, for being stuck in the aperture of the locking nail hole 5-1 of described pinning screw 5, 2 axial relative movements are overlapped with described pinning screw 5 along nail to limit described nail cover 2, described nail overlaps the open slot 2-1 that 2 front end edges are axially arranged with several its wall thickness through, its degree of depth exceedes described cannelure 2-2, for clamping reduction nail 1, the endoporus of described nail cover 2 is through hole, its endoporus is on the position of open slot 2-1, be provided with the female thread matched with the screw rod 1-1 of described reset nail 1, the rear end of described cannelure 2-2 is provided with handle 2-3.
During assembling, first described reduction nail 1 is screwed in described nail cover 2, again nail cover 2 is loaded in the aperture of described pinning screw 5, then by described spacer 4, be inserted in by screw rod one end of described pinning screw 5, and the V-shaped groove 4-1 of described spacer is stuck on nail 1, again successively by the screw hole 3-2 of the screw rod of described pinning screw 5 through described flute profile fixture block 3, then described pinning nut 6 is screwed on the screw rod of described pinning screw 5, but it is not fastening, again described silk axle 9 is inserted the open pore 3-1 of described flute profile fixture block 3, and by described packing ring 7 and each two pieces of nut 8, be placed in open pore 3-1 two ends respectively, described flute profile fixture block 3 is fixed on described silk axle 9.
Operation consent, first by a kind of orthopaedics reduction of the present invention pinning device, be fixed on the external fixation used for orthopedics tool such as external fixator for orthopedics dep with retainer ring or support ring 10 by described silk axle 9 and nut 8, packing ring 7, also can remove an axle 9 is directly fixed on the bar base part of external fixation used for orthopedics tool by the open pore 3-1 of described flute profile fixture block 3, in operation, described reduction nail 1 is screwed in fracture end skeleton, when orthopaedics foreign country determines after fracture end pulls open by frame, rotate described nail cover 2, directly adjust fracture end para-position by reduction nail 1.This is simple and efficient to handle, and para-position is accurate and reliable and stable, effectively shortens operating time.
Claims (7)
1. an orthopaedics reduction pinning device, mainly comprise reduction nail (1) and reduction pinning mechanism, described reduction pinning mechanism mainly comprises flute profile fixture block (3), pinning nut (6), the bottom land of described flute profile fixture block (3) is provided with open pore (3-1), cell wall is provided with screw hole (3-2), it is characterized in that the rear end of described reduction nail (1) is provided with screw rod (1-1), described reduction pinning mechanism also comprises nail cover (2), spacer (4), pinning screw (5), described pinning screw (5) front end is provided with screw rod, tail end is provided with ailhead, described ailhead is provided with locking nail hole (5-1), the cylindrical of the front end of described nail cover (2) is provided with cannelure (2-2), rear end is provided with handle (2-3), described nail cover (2) is also provided with endoporus, described endoporus is provided with female thread, described reduction nail (1) screws in described nail cover (2), nail cover (2) reinstalls described locking nail hole (5-1), the screw rod of described pinning screw (5) screws on described pinning nut (6) through after the screw hole (3-2) of described spacer (4) and described flute profile fixture block (3) successively, by the open pore (3-1) of pinning nut (6) by described flute profile fixture block (3), orthopaedics reduction pinning device of the present invention is fixedly connected with external fixation used for orthopedics tool, and simultaneously by pinning screw (5) and spacer (4) locking nail cover (2), and then locking reduction nail (1).
2. a kind of orthopaedics reduction pinning device according to claim 1, it is characterized in that the screw rod (1-1) of described reduction nail (1) rear end, the shape seesawed that profile of tooth bar or tooth bar etc. can make its machinery can be set to, or install additional on reduction nail (1) be threaded, the mechanism seesawed that profile of tooth etc. can make its machinery.
3. a kind of orthopaedics reduction pinning device according to claim 1, is characterized in that described pinning nut (6) can be set to the clamp systems such as cam and pinning screw (5) locks.
4. a kind of orthopaedics reduction pinning device according to claim 1, is characterized in that described spacer (4) is annular sleeve, annular sleeve end face is provided with through V-shaped groove (4-1).
5. a kind of orthopaedics reduction pinning device according to claim 1, it is characterized in that the front end edge of described nail cover (2) is axially arranged with the open slot (2-1) of several its wall thickness through, described female thread is located on the endoporus of open slot (2-1) position, and match with the screw rod (1-1) of described reset nail (1), this female thread is located at the effect also played and reinforce locking reduction nail (1) herein.
6. a kind of orthopaedics reduction pinning device according to claim 1, it is characterized in that the axis of described locking nail hole (5-1) perpendicular to described pinning screw (5), locking nail hole (5-1) is connected to form by two sides by small one and large one holes, macropore is located at the side near screw rod, and the two ends of described locking nail hole (5-1) are equipped with the plane perpendicular to locking nail hole (5-1).
7. a kind of orthopaedics reduction pinning device according to claim 1, is characterized in that the open pore (3-1) on described flute profile fixture block (3) is mutually vertical with screw hole (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014393.6A CN104622552B (en) | 2015-01-08 | 2015-01-08 | A kind of orthopaedics reduction pinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014393.6A CN104622552B (en) | 2015-01-08 | 2015-01-08 | A kind of orthopaedics reduction pinning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104622552A true CN104622552A (en) | 2015-05-20 |
| CN104622552B CN104622552B (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014393.6A Active CN104622552B (en) | 2015-01-08 | 2015-01-08 | A kind of orthopaedics reduction pinning device |
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| Country | Link |
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| CN (1) | CN104622552B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191634Y (en) * | 1994-02-06 | 1995-03-15 | 宋西正 | Fracture fixer |
| US6113599A (en) * | 1997-06-04 | 2000-09-05 | Kalpa Engineering, Inc. | Apparatus for internal mandibular distraction |
| CN2497731Y (en) * | 2001-10-23 | 2002-07-03 | 孙德修 | Pin locking device for external fixer of orthopedics |
| CN200948163Y (en) * | 2006-09-08 | 2007-09-19 | 王文军 | External Fixer for the recovering of knotty vertebral column |
-
2015
- 2015-01-08 CN CN201510014393.6A patent/CN104622552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191634Y (en) * | 1994-02-06 | 1995-03-15 | 宋西正 | Fracture fixer |
| US6113599A (en) * | 1997-06-04 | 2000-09-05 | Kalpa Engineering, Inc. | Apparatus for internal mandibular distraction |
| CN2497731Y (en) * | 2001-10-23 | 2002-07-03 | 孙德修 | Pin locking device for external fixer of orthopedics |
| CN200948163Y (en) * | 2006-09-08 | 2007-09-19 | 王文军 | External Fixer for the recovering of knotty vertebral column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104622552B (en) | 2017-12-15 |
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