CN210354886U - Orthopaedic nail reduction and locking device - Google Patents
Orthopaedic nail reduction and locking device Download PDFInfo
- Publication number
- CN210354886U CN210354886U CN201920682518.6U CN201920682518U CN210354886U CN 210354886 U CN210354886 U CN 210354886U CN 201920682518 U CN201920682518 U CN 201920682518U CN 210354886 U CN210354886 U CN 210354886U
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- Prior art keywords
- bone nail
- reduction
- nail
- nut
- bone
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- 230000009467 reduction Effects 0.000 title claims abstract description 75
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 114
- 230000000399 orthopedic effect Effects 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 abstract description 7
- 206010052428 Wound Diseases 0.000 abstract description 5
- 208000010392 Bone Fractures Diseases 0.000 description 12
- 206010017076 Fracture Diseases 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 3
- 208000000860 Compassion Fatigue Diseases 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides an orthopedics reduction lock nail ware, through being provided with the batch head at the one end of reduction bone nail, set up the rack on reduction bone nail, set up the gear of being connected with the rack toothing, the running gear can squeeze into reduction bone nail into patient's fracture tip along the axis direction, batch head makes things convenient for reduction bone nail to get into patient's fracture tip, utilize the mode that reduction bone nail got into patient's fracture tip along the axis direction to replace traditional screw in mode, can reduce the secondary wound, reduce the injured area, reduce patient's pain; through setting up the snap ring, can be with the rotatable fixing of gear on the bone nail cover for the rack is connected with gear engagement, can drive the rack and move forward or backward during the rotating gear, and the mode that the regulation restitution bone nail gos forward and moves back is simple and convenient.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to an orthopedics reduction lock nail ware.
Background
At present, in the treatment of fracture reduction, generally, a bone nail and a locking nail mechanism are mostly adopted and matched with an external fixing frame for orthopedics, the bone nail and the locking nail mechanism are used in a mode of driving the bone nail into a bone, and then the locking nail mechanism is used for locking the bone nail on the fixing frame, so that the purpose of fixing the bone is achieved. Among the prior art, adjust the counterpoint of reduction bone nail and fracture end earlier usually in the operation, then will reduce bone nail screw in fracture end skeleton through rotatory reduction bone nail, the mode of reduction bone nail screw in fracture end causes the secondary wound easily, increases injured area, brings more misery for the patient, consequently, for solving above-mentioned problem, the utility model provides a can reduce the reduction locker of orthopedics of secondary wound.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an orthopedics reduction locker that can reduce secondary wound.
The technical scheme of the utility model is realized like this: the utility model provides an orthopedics reduction lock nail ware, it is including reduction bone nail and coupling assembling, its characterized in that: also comprises a bone nail sleeve and a gear;
the bone nail sleeve is provided with a through hole along the axis direction, the side surface of the bone nail sleeve is provided with an opening, and the bone nail sleeve is fixedly connected with the connecting component;
one end of the reduction bone nail is provided with a screwdriver head along the axis direction, the other end of the reduction bone nail extends into the bone nail sleeve along the axis direction of the bone nail sleeve, a rack is arranged on the reduction bone nail, and a gear is arranged at the opening position on the bone nail sleeve and is meshed with the rack.
On the basis of the above technical scheme, preferably, the batch head is a linear batch head, a cross batch head, a rice batch head, a star batch head, a square batch head, a hexagonal batch head or a Y-shaped batch head.
On the basis of the above technical solution, preferably, two side end surfaces of the gear extend outwards to form two rotating shafts.
Further preferably, the device also comprises a snap ring;
be provided with a breach on the snap ring, be provided with first fixed plate and second fixed plate on two sections of breach, be provided with the through-hole on the relative position of first fixed plate and second fixed plate, the coaxial nestification of snap ring is sheathe in at the bone nail to fix and sheathe in just to the open-ended position at the bone nail, two rotation axes of gear pass the through-hole on first fixed plate and the second fixed plate respectively, and with snap ring rotatable coupling.
On the basis of the technical scheme, preferably, the inner wall of the through hole on the bone nail sleeve is smooth, and the surface of the part of the reduction bone nail extending into the bone nail sleeve is smooth.
On the basis of the technical scheme, preferably, the connecting assembly comprises a right-angle fastener and a threaded rod;
the right-angle fastener is provided with a horizontal through hole and a vertical through hole, and threads are arranged on the inner walls of the horizontal through hole and the vertical through hole;
the other end of the bone nail sleeve is in threaded connection with a horizontal through hole of the right-angle fastener, and the threaded rod is in threaded connection with a vertical through hole.
Further preferably, the connecting assembly further comprises a first nut and a second nut;
the first nut and the second nut are respectively in threaded connection with the other end of the bone nail sleeve, the first nut is abutted against the left side of the right-angle fastener, and the second nut is abutted against the right side of the right-angle fastener.
Further preferably, the connecting assembly further comprises a third nut and a fourth nut;
the third nut and the fourth nut are respectively in threaded connection with the threaded rod, the third nut abuts against the upper side of the right-angle fastener, and the fourth nut abuts against the lower side of the right-angle fastener.
The utility model discloses an orthopedics is whole to be locked nail ware has following beneficial effect for prior art:
(1) the screw head is arranged at one end of the reduction bone nail, the rack is arranged on the reduction bone nail, the gear meshed with the rack is arranged, the reduction bone nail can be driven into the fracture end of a patient along the axis direction by rotating the gear, the screw head is convenient for the reduction bone nail to enter the fracture end of the patient, the traditional screwing-in mode is replaced by the mode that the reduction bone nail enters the fracture end of the patient along the axis direction, the secondary trauma can be reduced, the injured area is reduced, and the pain of the patient is reduced;
(2) the gear can be rotatably fixed on the bone nail sleeve by arranging the clamping ring, so that the rack is meshed with the gear, the rack can be driven to move forwards or backwards when the gear is rotated, and the forward and backward moving modes of the restitution bone nail are adjusted simply and conveniently;
(3) whole device can squeeze into patient's fracture end with reduction bone nail along the axis direction, replaces traditional screw in mode, can reduce the secondary wound, reduces the area of injury, reduces patient's pain, in addition, adjusts reduction bone nail forward or mode convenience backward.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of the orthopedic reduction nail locking device of the present invention;
FIG. 2 is a perspective view of a bone screw sleeve of the orthopedic reduction screw locking device of the present invention;
FIG. 3 is a perspective view of the nail locking structure of the orthopedic reduction nail locking device of the present invention;
FIG. 4 is a perspective view of a gear in the orthopedic reduction nail locking device of the present invention;
FIG. 5 is a perspective view of a snap ring of the orthopedic reduction nail locking device of the present invention;
FIG. 6 is a perspective view of a reduction bone nail in the reduction nail locking device for orthopedics department;
FIG. 7 is a cross-sectional perspective view of a reduction bone nail and a bone nail sleeve in the orthopedic reduction nail locking device of the present invention;
fig. 8 is a perspective view of the right-angle fastener in the orthopedic reduction nail locking device of the present invention.
In the figure, 1-reduction bone nail, 11-rack, 12-batch head, 2-connecting component, 21-right angle fastener, 21-1-horizontal through hole, 21-2-vertical through hole, 22-threaded rod, 23-first nut, 24-second nut, 25-third nut, 26-fourth nut, 3-bone nail sleeve, 31-opening, 4-locking nail structure, 5-snap ring, 5-1-first fixing plate, 5-2-second fixing plate, 5-3-through hole, 4-gear and 4-1-rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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 all belong to the protection scope of the present invention.
As shown in figure 1, the utility model discloses an orthopedic reduction nail locking device, it includes reduction bone nail 1, coupling assembling 2, bone nail cover 3, gear 4 and snap ring 5.
In this embodiment, as shown in fig. 6, a bit 12 is disposed at one end of the reduction bone nail 1 along the axial direction, a rack 11 engaged with the gear 4 is disposed at the middle position of the reduction bone nail 1, and the other end of the reduction bone nail 1 extends into the bone nail sleeve 3, where the end of the rack 11 is required to be located at the other end of the reduction bone nail 1 but not to exceed the end surface of the other end of the reduction bone nail 1, mainly to prevent the reduction bone nail 1 from being separated from the connection component 2 because the gear 4 is not engaged with the rack 11 when the rack 11 moves to the end; in this embodiment, the driver head 12 can be a linear head, a cross head, a rice head, a star head, a square head, a hexagonal head or a Y-shaped head, and is mainly used for driving the reduction bone nail 1 into the fracture end of the patient along the horizontal direction in order to facilitate the pushing of the gear, and the traditional screwing-in mode is replaced by a pushing mode, so that the secondary trauma is reduced, the injured area is reduced, and the pain of the patient is reduced.
As shown in fig. 2, the bone screw housing 3 is provided with a through hole along the axial direction, and an opening 31 for accommodating the gear 4 is provided at one end of the bone screw housing 3, and the outer surface of the other end of the bone screw housing 3 is provided with a thread.
As shown in fig. 4, two side end faces of the gear 4 extend outwards to form two rotating shafts 4-1; the gear 4 is engaged with the rack 11 mainly by rotating the rotary shaft 4-1.
As shown in fig. 5, a notch is formed in the snap ring 5, a first fixing plate 5-1 and a second fixing plate 5-2 are vertically arranged on two cross sections of the notch, a through hole 5-3 is formed in the position, opposite to the first fixing plate 5-1, of the second fixing plate 5-2, the snap ring 5 is coaxially nested on the bone nail sleeve 3 and fixed on the bone nail sleeve 3 at a position opposite to the opening 31, two rotating shafts 4-1 of the gear 4 respectively penetrate through the through holes in the first fixing plate 5-1 and the second fixing plate 5-2 and are rotatably connected with the snap ring 5, the through holes and the rotating shafts 4-1 are required to be tightly abutted, when the rotating shafts 4-1 are not rotated, the rotating shafts 4-1 cannot slide in the opening 31, and the gear 4 cannot be separated from the rack 11.
As shown in fig. 8, the connecting assembly 2 includes a right-angle fastener 21, a threaded rod 22, a first nut 23, a second nut 24, a third nut 25, and a fourth nut 26; as shown in fig. 6, the right-angle fastener 21 is provided with a horizontal through hole 21-1 and a vertical through hole 21-2, the inner walls of the horizontal through hole 21-1 and the vertical through hole 21-2 are provided with threads, the other end of the bone screw sleeve 3 is in threaded connection with the horizontal through hole 21-1 of the right-angle fastener 21, and the threaded rod 22 is in threaded connection with the vertical through hole 21-2 of the right-angle fastener 21; the first nut 23 and the second nut 24 are used for reinforcing the connection between the bone screw sleeve 3 and the right-angle fastener 21 and preventing the bone screw sleeve 3 and the right-angle fastener 21 from loosening, and the third nut 25 and the fourth nut 26 are used for reinforcing the connection between the threaded rod 22 and the right-angle fastener 21 and preventing the threaded rod 22 and the right-angle fastener 21 from loosening.
The installation mode of this embodiment is: firstly, the other end of the restitution bone nail 1 is extended into the bone nail sleeve 3, so that the rack 11 on the restitution bone nail 1 reaches the opening 31 of the bone nail sleeve 3, the snap ring 5 is coaxially nested and fixed on the position of the bone nail sleeve 3, which is just opposite to the opening 31, the gear 4 is meshed with the rack 11, the rotating shaft 4-1 on the gear 4 passes through two through holes on the snap ring 5, so that the gear 4 is rotatably connected with the snap ring 5, then the first nut 23 is screwed in the other end of the bone nail sleeve 3, the other end of the bone nail sleeve 3 is screwed in the horizontal through hole 21-1, so that the first nut 23 is mutually abutted against the left side of the right-angle fastener 21, the second nut 24 is screwed in the other end of the bone nail sleeve 3, so that the second nut 24 is mutually abutted against the right side of the right-angle fastener 21, then the third nut 25 is screwed in one end of the threaded rod 22, so that the third nut 25 and the upper side of the right-angle fastener 21 are abutted against each other, the fourth nut 26 is screwed into the other side of the threaded rod 22, so that the fourth nut 26 and the lower side of the right-angle fastener 21 are abutted against each other, and finally the threaded rod 22 is mounted on the orthopedic external fixing frame.
The principle of the shrink of this utility does: as shown in fig. 7, a through hole for accommodating the reduction bone nail 1 is arranged in the bone nail sleeve 3 along the axis direction, and is engaged and connected with the rack 11 on the reduction bone nail 1 through the gear 4, so that the reduction bone nail 1 slides in the bone nail sleeve 3, when the reduction bone nail 1 is not needed, the rotating shaft 4-1 of the gear 4 is rotated anticlockwise, the reduction bone nail 1 can be horizontally moved into the bone nail sleeve 3, when the reduction bone nail 1 is needed to be used, the rotating shaft 4-1 of the gear 4 is rotated clockwise, the rack 11 is driven to be close to the fracture end of a patient, because one end of the reduction bone nail 1 is provided with the bit 12, the reduction bone nail 1 can be conveniently driven into the fracture end of the patient along the horizontal direction, through the arrangement of the bit 12 and the engagement and connection of the reduction bone nail 1 and the gear 4, the traditional reduction bone nail 1 can be replaced to be screwed into the fracture end of the patient, the secondary injury is reduced. Because the rack 11 is arranged in the middle of the reduction bone nail 1, the end face of the other end of the reduction bone nail 1 has the function of preventing the reduction bone nail 1 from slipping out of the bone nail sleeve 3, when the rack 11 rotates to the tail end, the gear 4 and the other end of the reduction bone nail 1 are mutually supported, and the gear 4 can not rotate forwards when rotating to the tail end of the reduction bone nail 1, in addition, because the rotating shaft 4-1 of the gear 4 passes through the through hole of the clamping ring 5 and is rotatably connected with the clamping ring 5, the gear 4 is fixed on the clamping ring 5, even under the condition of not rotating the rotating shaft 4-1, the gear 4 and the rack 11 can not be loosened.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an orthopedics reduction lock nail ware, its includes reduction bone nail (1) and coupling assembling (2), its characterized in that: the bone screw is characterized by also comprising a bone screw sleeve (3) and a gear (4);
the bone nail sleeve (3) is provided with a through hole along the axis direction, the side surface of the bone nail sleeve (3) is provided with an opening (31), and the bone nail sleeve (3) is fixedly connected with the connecting component (2);
one end of the reduction bone nail (1) is provided with a screwdriver head (12) along the axis direction, the other end of the reduction bone nail (1) extends into the bone nail sleeve (3) along the axis direction of the bone nail sleeve (3), a rack (11) is arranged on the reduction bone nail (1), and a gear (4) is arranged at the position of an opening (31) on the bone nail sleeve (3) and is meshed with the rack (11).
2. An orthopedic reduction nail locker as claimed in claim 1, wherein: the batch head (12) is a linear batch head, a cross batch head, a rice batch head, a star batch head, a square batch head, a hexagonal batch head or a Y-shaped batch head.
3. An orthopedic reduction nail locker as claimed in claim 1, wherein: two side end faces of the gear (4) extend outwards to form two rotating shafts (4-1).
4. An orthopedic reduction nail locker as claimed in claim 3, wherein: the device also comprises a snap ring (5);
the bone screw is characterized in that a notch is formed in the clamping ring (5), a first fixing plate (5-1) and a second fixing plate (5-2) are arranged on two sections of the notch, through holes (5-3) are formed in the relative positions of the first fixing plate (5-1) and the second fixing plate (5-2), the clamping ring (5) is coaxially nested on the bone screw sleeve (3) and fixed on the bone screw sleeve (3) and opposite to the opening (31), and two rotating shafts (4-1) of the gear (4) respectively penetrate through the through holes in the first fixing plate (5-1) and the second fixing plate (5-2) and are rotatably connected with the clamping ring (5).
5. An orthopedic reduction nail locker as claimed in claim 1, wherein: the inner wall of the through hole on the bone nail sleeve (3) is smooth, and the surface of the part of the reduction bone nail (1) extending into the bone nail sleeve (3) is smooth.
6. An orthopedic reduction nail locker as claimed in claim 1, wherein: the connecting component (2) comprises a right-angle fastener (21) and a threaded rod (22);
the right-angle fastener (21) is provided with a horizontal through hole (21-1) and a vertical through hole (21-2), and the inner walls of the horizontal through hole (21-1) and the vertical through hole (21-2) are provided with threads;
the other end of the bone nail sleeve (3) is in threaded connection with a horizontal through hole (21-1) of the right-angle fastener (21), and the threaded rod (22) is in threaded connection with a vertical through hole (21-2).
7. An orthopedic reduction nail locker as claimed in claim 6, wherein: the connection assembly (2) further comprises a first nut (23) and a second nut (24);
the first nut (23) and the second nut (24) are in threaded connection with the other end of the bone nail sleeve (3) respectively, the left sides of the first nut (23) and the right-angle fastener (21) are abutted against each other, and the right sides of the second nut (24) and the right-angle fastener (21) are abutted against each other.
8. An orthopedic reduction nail locker as claimed in claim 7, wherein: the connection assembly (2) further comprises a third nut (25) and a fourth nut (26);
the third nut (25) and the fourth nut (26) are respectively in threaded connection with the threaded rod (22), the upper sides of the third nut (25) and the right-angle fastener (21) are mutually abutted, and the lower sides of the fourth nut (26) and the right-angle fastener (21) are mutually abutted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682518.6U CN210354886U (en) | 2019-05-14 | 2019-05-14 | Orthopaedic nail reduction and locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682518.6U CN210354886U (en) | 2019-05-14 | 2019-05-14 | Orthopaedic nail reduction and locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210354886U true CN210354886U (en) | 2020-04-21 |
Family
ID=70260009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920682518.6U Expired - Fee Related CN210354886U (en) | 2019-05-14 | 2019-05-14 | Orthopaedic nail reduction and locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210354886U (en) |
-
2019
- 2019-05-14 CN CN201920682518.6U patent/CN210354886U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |