CN112401996B - Long dry bone locking steel plate drawing external fixator - Google Patents
Long dry bone locking steel plate drawing external fixator Download PDFInfo
- Publication number
- CN112401996B CN112401996B CN202011364428.6A CN202011364428A CN112401996B CN 112401996 B CN112401996 B CN 112401996B CN 202011364428 A CN202011364428 A CN 202011364428A CN 112401996 B CN112401996 B CN 112401996B
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- drafting
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- needle
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 100
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 238000000338 in vitro Methods 0.000 claims 1
- 238000001727 in vivo Methods 0.000 claims 1
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 206010031252 Osteomyelitis Diseases 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 208000012661 Dyskinesia Diseases 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 208000008822 Ankylosis Diseases 0.000 description 1
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 206010023198 Joint ankylosis Diseases 0.000 description 1
- 206010057178 Osteoarthropathies Diseases 0.000 description 1
- 206010031264 Osteonecrosis Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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
- A61B17/60—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
- A61B17/66—Alignment, compression or distraction mechanisms
-
- 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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6441—Bilateral fixators, i.e. with both ends of pins or wires clamped
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
Abstract
The invention discloses a long dry bone locking steel plate drawing external fixator, which comprises an inner ring groove steel plate, an external drawing bracket, a needle clamping drawing seat, a drawing rod and a bone needle, wherein the inner ring groove steel plate is fixedly connected to a long dry bone and is positioned in a body, the external drawing bracket is connected to the inner ring groove steel plate through a connecting rod and is positioned outside the body, the needle clamping drawing seat is arranged on the external drawing bracket and slides along the length direction of the external drawing bracket, the drawing rod is parallel to the external drawing bracket, two ends of the drawing rod are respectively connected to the external drawing bracket and the needle clamping drawing seat, and the bone needle is arranged on the needle clamping drawing seat. The needle clamping drafting seat can be connected to the outer drafting bracket in a bidirectional manner, so that bidirectional sliding is realized, and the application range is wide; the adjusting bolt is adjusted to enable the drafting rod to drive the needle clamping drafting seat to move outwards, so that the bone block is drafted at a fixed speed to slide to the far end, the control is simple and stable, and the operation success efficiency is high.
Description
Technical Field
The invention relates to the technical field of medical tools, in particular to a long dry bone locking steel plate drafting external fixator.
Background
The external fixing support is used for treating bone defect and osteomyelitis, and is an ideal and effective treatment scheme for treating various orthopedic diseases after the continuous development of the last 60 th century, the clinical fine rate of more than 10 years is more than 90%, the external fixing support is known as an important milestone in the history of the development of the twenty-th century, and the external fixing support can obviously relieve or eliminate the symptoms such as osteoarthropathy, ankylosis or dyskinesia of a person who has osteonecrosis, comminuted fracture dislocation and can not be reset, pain and dyskinesia, rheumatoid arthritis and the like, can improve the joint movement range to a certain extent, and can obviously improve the appearance of deformed limbs. The external fixing bracket also has better effects on osteomyelitis, bone defect, limb shortness, orthopedic reduction and other diseases, but has higher requirements on application. The traditional treatment of osteomyelitis still realized by sliding the external fixing support to the bone blocks, but the existing external fixing support has the defects of easy infection in the treatment process, incapability of effectively controlling the drafting rate, difficult control of the sliding direction, incapability of realizing bidirectional sliding and great learning difficulty of doctors in the use process. The invention provides a long dry bone locking steel plate drafting external fixator which solves the problems.
Disclosure of Invention
The invention provides a long dry bone locking steel plate drafting external fixator which has few exposed parts, less influence, convenient installation and low learning difficulty.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the long dry bone locking steel plate drawing external fixator comprises an inner ring groove steel plate, an external drawing bracket, a needle clamping drawing seat, a drawing rod and spicules, wherein the inner ring groove steel plate is fixedly connected to a long dry bone and is positioned in a body;
the middle part of the inner ring channel steel plate is provided with an annular groove which penetrates up and down, and the annular groove is positioned below the needle clamping drafting seat; the upper end of the bone needle is fixed on the needle clamping drafting seat, and the lower end of the bone needle passes through the annular groove to be connected with the bone block.
Further, the drafting rod comprises a rod body and a fixed support, and the fixed support is arranged at two ends of the rod body and is fixedly connected with the external drafting bracket and the needle clamping drafting seat respectively; the outer end of the stretching rod is provided with an adjusting bolt, and the adjusting bolt is arranged on the rod body and is contacted with the fixed support.
Further, the middle part of the outer drafting bracket is provided with a strip-shaped groove which is penetrated up and down, and the needle clamping drafting seat is positioned in the strip-shaped groove; the left side and the right side of the strip-shaped groove are provided with sliding grooves, the left side and the right side of the needle clamping drafting seat are provided with sliding blocks, and the sliding blocks are positioned in the sliding grooves.
Further, the strip-shaped groove is arranged along the length direction of the external drafting support and is parallel to the external drafting support, and the sliding groove and the sliding block are arranged parallel to the strip-shaped groove.
Further, the end part of the outer drafting support is provided with a connecting support, the top surface of the connecting support is provided with a first connecting hole, the two ends of the top surface of the needle clamping drafting seat are provided with a second connecting hole, and the fixed supports at the two ends of the rod body are respectively and fixedly connected in the first connecting hole and the second connecting hole.
Further, the inner ring channel steel plate is fixedly connected to the long dry bone through a locking screw, a limiting section is arranged in the middle of the locking screw, and the limiting section is located below the inner ring groove steel plate.
Further, mounting holes which are vertically penetrated are formed in the needle clamping drafting seat at intervals, and the upper end parts of the bone needles are arranged in the mounting holes; the side surface of the needle clamping drafting seat is provided with a locking hole corresponding to the mounting hole, a locking bolt is arranged in the locking hole, and the inner end of the locking bolt is contacted with the bone needle.
Further, the inner ring groove steel plate and the outer drafting support are respectively provided with a connecting hole, and two ends of the connecting rod are respectively arranged in the connecting holes.
The application method of the long dry bone locking steel plate drafting external fixator comprises the following steps:
s1, implanting an inner ring channel steel plate: fixing an inner ring channel steel plate on long dry bones by adopting locking screws, positioning an annular groove at the middle position of the long dry bones, then cutting off infected bone fragments, flushing and suturing wounds;
s2, installing an external drawing bracket: cutting the skin at the connecting hole on the inner ring groove steel plate, fixing the inner end of the connecting rod on the inner ring groove steel plate, and fixing the outer drafting bracket pre-assembled with the needle clamping drafting seat at the top end of the connecting rod to finish the installation of the outer drafting bracket;
s3, mounting bone spicules: penetrating two bone needles in the mounting hole on the needle clamping drafting seat, fixedly connecting the inner ends of the bone needles with the fixed bone blocks to be slipped, fixing the bone needles, and then transversely cutting the fixed bone blocks to form slipped bone blocks;
s4, installing a stretching rod: presetting a drafting rod to a length corresponding to the osteotomy, and fixedly connecting a fixed support at the end of the drafting rod with an external drafting bracket and a needle clamping drafting seat to finish installation;
s5, pre-stress drafting: after the drafting rod is installed, adjusting the adjusting bolt at the outer end of the drafting rod to shorten the length of the drafting rod and drive the needle clamping drafting seat to move outwards;
s6, carrying and adjusting: adjusting the adjusting bolt to enable the drafting rod to drive the needle clamping drafting seat to move, and further drafting the bone blocks at a fixed speed to slide to the far end until the bone blocks slide to the far end position to heal with the bone at the far end section;
s7, outer drafting support is removed: after the bone block heals, the outer drawing bracket is removed, and the steel plate of the inner ring groove is kept until the bone block is firmly calcified.
The invention has the following beneficial effects:
the needle clamping drafting seat can be connected to the outer drafting bracket in a bidirectional manner, so that bidirectional sliding is realized, and the application range is wide; the adjusting bolt is adjusted to enable the drafting rod to drive the needle clamping drafting seat to move outwards, so that the bone blocks are drafted at a fixed speed to slide to the far end, the control is simple and stable, and the operation success efficiency is high; the exposed part is smaller, so that the living inconvenience of a patient is greatly reduced, the opening size is small, and the infection risk is reduced; the fixing effect with long dry bones and bone blocks is good, the influence on the blood circulation of the bone blocks is small, and the operation effect is good; the installation mode is simple, the learning curve is short, the difficulty of mastering the upper hand is low, the learning cost can be effectively reduced, and the application efficiency is improved.
Drawings
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a side view of the present invention in use;
FIG. 3 is a schematic diagram of the overall structure of the present invention;
FIG. 4 is a front side view of the inner ring groove steel plate of the present invention;
FIG. 5 is a rear side view of the inner ring groove steel plate of the present invention;
FIG. 6 is a schematic view of an outer draft support structure according to the present invention;
FIG. 7 is a schematic view of the structure of the locking screw of the present invention;
fig. 8 is a side view of the locking screw of the present invention.
Reference numerals: the device comprises a 1-inner ring groove steel plate, 11-ring grooves, 2-outer drawing brackets, 21-connecting supports, 3-needle clamping drawing seats, 4-drawing rods, 41-rod bodies, 42-fixed supports, 43-adjusting bolts, 5-spicules, 6-connecting rods and 7-locking screws.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.
As shown in fig. 1, 2 and 3, the long dry bone locking steel plate drawing external fixator comprises an inner ring groove steel plate 1, an outer drawing support 2, a needle clamping drawing seat 3, a drawing rod 4 and a bone needle 5, wherein the inner ring groove steel plate 1 is fixedly connected to a long dry bone and is positioned in a body, the outer drawing support 2 is connected to the inner ring groove steel plate 1 through a connecting rod 6 and is positioned in the body, the needle clamping drawing seat 3 is arranged on the outer drawing support 2 and slides along the length direction of the outer drawing support 2, the drawing rod 4 is parallel to the outer drawing support 2, two ends of the drawing rod are respectively connected to the outer drawing support 2 and the needle clamping drawing seat 3, and the bone needle 5 is arranged on the needle clamping drawing seat 3.
As shown in fig. 4 and 5, the middle part of the inner ring channel steel plate 1 is provided with an annular groove 11 which penetrates up and down, and the annular groove 11 is positioned below the needle clamping drafting seat 3; the upper end of the bone needle 5 is fixed on the needle clamping drafting seat 3, and the lower end of the bone needle passes through the annular groove 11 to be connected with the bone block. The annular groove 11 is used for giving way to the spicule 5 and can limit the running track of the spicule 5.
As shown in fig. 1, the principle of use of the present invention is as follows: the inner ring groove steel plate 1 is fixedly connected to a long dry bone through a locking screw 7 and is positioned in a body, the outer drawing bracket 2 is connected to the inner ring groove steel plate 1 through a connecting rod 6 and is positioned outside the body, bone blocks are fixed on the needle clamping drawing seat 3 along with bone needles 5, and the needle clamping drawing seat 3 is movably connected to the outer drawing bracket 2 and is connected with a drawing rod 4. When the external drafting rod 4 moves through the adjusting bolt 43, the needle clamping drafting seat 3 is driven to move along the external drafting bracket 2, and the needle clamping drafting seat together drive the bone needle 5 to move, so that bone pieces at the inner end of the bone needle 5 are driven to slowly move, further the growth of bones is realized, and the operation requirement is met.
As shown in fig. 3, in the embodiment of the present invention, two ends of the inner ring groove steel plate 1 are fixed at two ends of a long dry bone by 3-5 locking screws 7, then the outer drawing frame 2 is fixed on the inner ring groove steel plate 1 by two connecting rods 6 at two ends of the outer drawing frame, two spicules 5 are arranged on the needle clamping drawing seat 3 in total, and the distance between the two spicules 5 is as large as possible according to the length of a sliding bone block.
As shown in fig. 3 and 6, the drafting rod 4 further comprises a rod body 41 and a fixed support 42, wherein the fixed support 42 is arranged at two ends of the rod body 41 and is fixedly connected with the outer drafting bracket 2 and the needle clamping drafting seat 3 respectively; the outer end of the drafting rod 4 is provided with an adjusting bolt 43, and the adjusting bolt 43 is arranged on the rod body 41 and is contacted with the fixed support 42.
Under the condition that the fixed support 42 is fixed variably, the rotation of the adjusting bolt 43 forces the rod body 41 to move relatively with the fixed support 42, so that the rod body 41 is moved, and the needle clamping drafting seat 3 is driven to move.
Preferably, the adjusting bolt 43 is a hexagonal bolt, and the adjusting bolt 43 rotates once and moves axially by 1mm.
As shown in fig. 6, further, a bar-shaped groove penetrating up and down is arranged in the middle of the outer drafting bracket 2, and the needle clamping drafting seat 3 is positioned in the bar-shaped groove; the left side and the right side of the strip-shaped groove are provided with sliding grooves, the left side and the right side of the needle clamping drafting seat 3 are provided with sliding blocks, and the sliding blocks are positioned in the sliding grooves. The arrangement of the strip-shaped groove, the sliding groove and the sliding block is used for ensuring that the needle clamping drafting seat 3 slides according to a designed motion track, and the left-right and up-down deflection does not occur, so that the bone block drafting effect is effectively ensured.
Further, the strip-shaped groove is arranged along the length direction of the outer drafting bracket 2 and is parallel to the outer drafting bracket 2, and the sliding groove and the sliding block are arranged parallel to the strip-shaped groove.
As shown in fig. 6, further, the end of the outer drafting frame 2 is provided with a connection support 21, the top surface of the connection support 21 is provided with a connection hole one, two ends of the top surface of the needle clamping drafting seat 3 are provided with a connection hole two, and the fixing supports 42 at two ends of the rod 41 are respectively and fixedly connected in the connection hole one and the connection hole two.
Preferably, two connecting supports 21 are provided and are respectively arranged at two ends of the external drafting support 2, and the outer ends of the rod bodies 41 are connected to different connecting supports 21 to realize forward or reverse sliding.
As shown in fig. 7 and 8, further, the inner ring groove steel plate 1 is fixedly connected to the long dry bone through a locking screw 7, a limiting section is arranged in the middle of the locking screw 7, and the limiting section is located below the inner ring groove steel plate 1. The limiting section is used for ensuring that the inner ring groove steel plate 1 keeps a corresponding distance with the long dry bone.
As shown in fig. 2 and 6, further, mounting holes penetrating up and down are provided on the clip needle drafting seat 3 at intervals, and the upper end of the bone needle 5 is arranged in the mounting holes; the side surface of the needle clamping drafting seat 3 is provided with a locking hole corresponding to the mounting hole, a locking bolt is arranged in the locking hole, and the inner end of the locking bolt is contacted with the bone needle 5. After the inner end of the bone needle 5 is connected with the bone block, the outer end of the bone needle is fixed by a locking bolt arranged on the side surface of the clamping needle drafting seat 3, and then moves along with the clamping needle drafting seat 3, so that the cut bone block is driven to move.
Further, the inner ring groove steel plate 1 and the outer drafting support 2 are respectively provided with a connecting hole, and two ends of the connecting rod 6 are respectively arranged in the connecting holes.
Further, screw holes are formed in the front end portion and the rear end portion of the inner ring groove steel plate 1 at intervals, and are used for placing locking screws 7, so that the installation position can be better met, and the inner ring groove steel plate 1 is stable and firm to install.
The application method of the long dry bone locking steel plate drafting external fixator comprises the following steps when the bone blocks slide forward:
s1, implanting an inner ring channel steel plate 1: the two ends of the inner ring groove steel plate 1 are fixed on long dry bones by adopting the locking screw 7, so that the ring groove 11 is ensured to be positioned in the middle of the long dry bones, thereby facilitating the cutting of infected bone blocks and the drafting of bone blocks, then cutting off the infected bone blocks, and suturing wounds after flushing;
s2, installing an external drafting support 2: cutting the skin at the connecting hole on the inner ring groove steel plate 1, fixing the inner end of the connecting rod 6 on the inner ring groove steel plate 1, fixing the outer drafting bracket 2 pre-assembled with the needle clamping drafting seat 3 at the top end of the connecting rod 6, and completing the installation of the outer drafting bracket 2;
when the external stretching bracket 2 is installed, the distance between the external stretching bracket 2 and the skin is ensured to be within 10+/-3 mm, and the external stretching bracket is as close to the skin as possible on the basis of not pressing the skin;
s3, mounting spicules 5: two bone needles 5 are preloaded in the mounting holes on the needle clamping drafting seat 3, the inner ends of the bone needles 5 are fixedly connected with a fixed bone block to be slipped, then the fixed bone block is fixed, and a transverse bone is cut at a position of 2cm below a tibial tuberosity at the metaphyseal end, so that the fixed bone block is in a slipping bone block and free state;
s4, installing a stretching rod 4: presetting the drafting rod 4 to the length corresponding to the osteotomy, and fixedly connecting a fixed support 42 at the end of the drafting rod with the external drafting bracket 2 and the needle clamping drafting seat 3 to finish the installation;
s5, pre-stress drafting: after the drafting rod 4 is installed, the adjusting bolt 43 at the outer end of the drafting rod 4 is adjusted to shorten the length of the drafting rod, and the needle clamping drafting seat 3 is driven to move outwards;
s6, carrying and adjusting: adjusting the adjusting bolt 43 to enable the drafting rod 4 to drive the needle clamping drafting seat 3 to move, and further drafting the sliding bone block to slide distally at a fixed speed until the sliding bone block slowly slides to a distal position to heal with the distal section end bone;
when in carrying and adjusting, the adjusting bolt 43 is rotated for one circle every day to drive the bone block to slide to the far end at the speed of 1 mm/day, and the adjusting speed is controlled according to the condition of the newly generated callus until the bone block slides to the far end position to heal with the bone at the far end section;
s7, removing the outer drafting support 2: after the bone block heals, the outer drawing bracket 2 is removed, and the steel plate 1 of the inner ring groove is kept until the bone block is firmly calcified.
When the use method is adopted for reverse sliding, the operation method is the same as that described above, and the difference is that in the step S3, the osteotomy position is at the distal metaphyseal end; in step S4, the fixing support 42 at the outer end of the draft rod 4 is connected to the other connecting support 21 on the outer draft support 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a long dry bone locking steel plate draft external fixator, its characterized in that includes inner ring groove steel sheet (1), outer draft support (2), presss from both sides needle draft holder (3), stretch rod (4) and spicule (5), inner ring channel steel sheet (1) fixed connection is on long dry bone, is located in vivo, outer draft support (2) are connected on inner ring groove steel sheet (1) through connecting rod (6), are located in vitro, press from both sides needle draft holder (3) to establish on outer draft support (2) to slide along its length direction, stretch rod (4) are parallel to outer draft support (2) and set up, and its both ends are connected respectively on outer draft support (2) and clamp needle draft holder (3), spicule (5) are established on clamp needle draft holder (3);
an annular groove (11) which is penetrated up and down is arranged in the middle of the inner ring channel steel plate (1), and the annular groove (11) is positioned below the needle clamping drafting seat (3); the upper end of the bone needle (5) is fixed on the needle clamping drafting seat (3), and the lower end of the bone needle passes through the annular groove (11) to be connected with the bone block;
the drafting rod (4) comprises a rod body (41) and a fixed support (42), and the fixed support (42) is arranged at two ends of the rod body (41) and is fixedly connected with the outer drafting bracket (2) and the needle clamping drafting seat (3) respectively; the outer end of the drafting rod (4) is provided with an adjusting bolt (43), and the adjusting bolt (43) is arranged on the rod body (41) and is contacted with the fixed support (42);
the middle part of the outer drafting bracket (2) is provided with a strip-shaped groove which is penetrated up and down, and the needle clamping drafting seat (3) is positioned in the strip-shaped groove; the left side and the right side of the strip-shaped groove are provided with sliding grooves, the left side and the right side of the needle clamping drafting seat (3) are provided with sliding blocks, and the sliding blocks are positioned in the sliding grooves.
2. The external fixator for stretching long dry bone locking steel plate according to claim 1, wherein: the strip-shaped groove is arranged along the length direction of the outer drafting support (2) and is parallel to the outer drafting support (2), and the sliding groove and the sliding block are parallel to the strip-shaped groove.
3. The external fixator for stretching long dry bone locking steel plate according to claim 1, wherein: the end of the outer drafting support (2) is provided with a connecting support (21), the top surface of the connecting support (21) is provided with a first connecting hole, two ends of the top surface of the needle clamping drafting seat (3) are provided with a second connecting hole, and the fixed supports (42) at two ends of the rod body (41) are respectively and fixedly connected in the first connecting hole and the second connecting hole.
4. The external fixator for stretching long dry bone locking steel plate according to claim 1, wherein: the inner ring channel steel plate (1) is fixedly connected to the long dry bone through a locking screw (7), a limiting section is arranged in the middle of the locking screw (7), and the limiting section is located below the inner ring groove steel plate (1).
5. The external fixator for stretching long dry bone locking steel plate according to claim 1, wherein: mounting holes which are vertically penetrated are formed in the needle clamping drafting seat (3) at intervals, and the upper end parts of the bone needles (5) are arranged in the mounting holes; the side of the needle clamping drafting seat (3) is provided with a locking hole corresponding to the mounting hole, a locking bolt is arranged in the locking hole, and the inner end of the locking bolt is contacted with the bone needle (5).
6. The external fixator for stretching long dry bone locking steel plate according to claim 1, wherein: the inner ring channel steel plate (1) and the outer drafting support (2) are respectively provided with a connecting hole, and two ends of the connecting rod (6) are respectively arranged in the connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364428.6A CN112401996B (en) | 2020-11-27 | 2020-11-27 | Long dry bone locking steel plate drawing external fixator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364428.6A CN112401996B (en) | 2020-11-27 | 2020-11-27 | Long dry bone locking steel plate drawing external fixator |
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| Publication Number | Publication Date |
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| CN112401996A CN112401996A (en) | 2021-02-26 |
| CN112401996B true CN112401996B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011364428.6A Active CN112401996B (en) | 2020-11-27 | 2020-11-27 | Long dry bone locking steel plate drawing external fixator |
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| JP2005334140A (en) * | 2004-05-25 | 2005-12-08 | Mizuho Co Ltd | Bone fracture treatment apparatus |
| CN103445838A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Long bone fracture repositioning device |
| CN205458987U (en) * | 2015-12-14 | 2016-08-17 | 重庆医科大学附属永川医院 | Compromise shin bone bone handling device of transport needle power of controlling and intensity |
| CN108606828A (en) * | 2016-12-13 | 2018-10-02 | 常州奥斯迈医疗器械有限公司 | It is carried for bone, the marrow combination of inner and outside device of Limb lengthening |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10682160B2 (en) * | 2015-12-03 | 2020-06-16 | Globus Medical, Inc. | External fixator assembly |
-
2020
- 2020-11-27 CN CN202011364428.6A patent/CN112401996B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005334140A (en) * | 2004-05-25 | 2005-12-08 | Mizuho Co Ltd | Bone fracture treatment apparatus |
| CN103445838A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Long bone fracture repositioning device |
| CN205458987U (en) * | 2015-12-14 | 2016-08-17 | 重庆医科大学附属永川医院 | Compromise shin bone bone handling device of transport needle power of controlling and intensity |
| CN108606828A (en) * | 2016-12-13 | 2018-10-02 | 常州奥斯迈医疗器械有限公司 | It is carried for bone, the marrow combination of inner and outside device of Limb lengthening |
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| Publication number | Publication date |
|---|---|
| CN112401996A (en) | 2021-02-26 |
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