CN105286968A - Distractive osteogenesis device suitable for narrow and small space - Google Patents
Distractive osteogenesis device suitable for narrow and small space Download PDFInfo
- Publication number
- CN105286968A CN105286968A CN201510745134.0A CN201510745134A CN105286968A CN 105286968 A CN105286968 A CN 105286968A CN 201510745134 A CN201510745134 A CN 201510745134A CN 105286968 A CN105286968 A CN 105286968A
- Authority
- CN
- China
- Prior art keywords
- small space
- applicable
- stretching plate
- osteogenesis device
- maintenance bar
- 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
-
- 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
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
-
- 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
- A61B17/663—Alignment, compression or distraction mechanisms for jaw bones, e.g. subcutaneous distractors with external access
Abstract
The invention discloses a distractive osteogenesis device suitable for narrow and small space. The distractive osteogenesis device comprises a distractive plate, a position fixing rod in axial sliding fit with the distractive plate in a single-freedom-degree mode and a driving and limiting assembly used for controlling the position fixing rod to axially move. As the front end of the position fixing rod and medial bone directly act, the back section of the position fixing rod is arranged to perform single-freedom-degree sliding in the axial direction relative to the distractive plate in a fixable mode, and the position fixing rod is driven and fixed through the driving and limiting assembly, a fixing plate is omitted, and the distractive osteogenesis device is suitable for the narrow and small operation space; meanwhile, the acting force of the position fixing rod directly acts on strut bone, and therefore bone and even tissues such as periosteum can be vertically distracted or jacked up.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to a kind of distraction osteogenesis device being applicable to small space.
Background technology
In bone surgery, distraction osteogenesis (DistractiveOsteogenesis) is at two bone sections or between periosteum and bone, through the maintenance phase of about a week, it is made to be separated gradually (being generally 1 ~ 1.5mm every day), then callus between the two to be grown up new bone by stretching, to realize reparation and the prolongation effect that bone increment reaches defect, it is current the most successful endogenous tissue engineering in the world; This kind of operation also uses more in cranium craniofacial orthopedics, reconstruction and decorative sursery, also very ripe; In prior art, Distraction Apparatus comprises drive rod and fixes and the two ends fixation steel plate on drive rod, two ends fixation steel plate respectively with the skeletal fixation needing stretching, drive rod be provided with thread mechanism can along extend loop bar, thread mechanism is rotated by special instrument, make two pieces of bone relative motioies, and then grow up to new bone; And be fixed on by stretching bone by screw due to two ends fixation steel plate, in small space stretching operation in, as a flat bone face thicken stretching in, existing Distraction Apparatus is not easily installed fixing, make much similar traction be difficult to realize, limit to the performance of Bone traction technology.。
Therefore, for overcoming the above problems, need a kind of distraction osteogenesis device being applicable to small space, narrow stretching operative space can be applicable to, change the direction of retention, stretching driving force is coaxial with the active force be subject to by stretching bone, reduce the setting of fixing head, structure is simple, volume compact, it is convenient to drive, and ensures new bone homoepitaxial in section.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, the distraction osteogenesis device being applicable to small space is provided, narrow stretching operative space can be applicable to, change the direction of retention, stretching driving force and the setting coaxially being reduced fixing head by the active force that stretching bone is subject to, structure is simple, volume compact, it is convenient to drive, meanwhile, ensure new bone homoepitaxial in section.
The distraction osteogenesis device being applicable to small space of the present invention, comprises stretching plate, single-degree-of-freedom axial sliding fit in the maintenance bar of stretching plate and the driving limit assembly for controlling the axially-movable of maintenance bar.
Further, the front end of described maintenance bar is nibbed screw structure.
Further, described stretching plate is provided with for the via hole spacing to maintenance bar circumference, described maintenance bar back segment and described via hole is conformal is slidably matched and sidewall is provided with external screw thread, described driving limit assembly comprises establishes female drive sleeve and the holder for drive sleeve being fixed vertically, and described holder is fixedly connected with stretching plate.
Further, described drive sleeve front end outer wall extends radially outward the limiting section formed for axial limiting, and described holder is cylindrical drum and is fixedly installed snap ring removably in cylindrical drum.
Further, described holder, drive sleeve and drive rod three are coaxially arranged, and holder is coated at drive sleeve and one-body molded with stretching plate.
Further, described via hole is mounting hole.
Further, described drive sleeve rear end face caves inward vertically and forms interface slot for facilitating drive sleeve to drive.
Further, the rear end of described nibbed screw structure is fixedly installed baffle ring, described baffle ring and maintenance bar one-body molded.
Further, described stretching plate is provided with at least two fixing holes, and is provided with stretching plate plasticity or the structure that fractures between described fixing hole.
Further, described stretching plate is the stripe board or the circular slab that are provided with fixing hole.
The invention has the beneficial effects as follows: a kind of distraction osteogenesis device being applicable to small space disclosed by the invention, by by the front end of maintenance bar and interior side seam direct effect, and the back segment of maintenance bar is arranged with the single-degree-of-freedom slip vertically of the relative stretching plate of the mode that can be fixed, and utilize driving limit assembly drive maintenance bar and fix, decrease the quantity of fixing head, be applicable to narrow and small operative space, simultaneously the active force of maintenance bar directly act on support rib can vertical stretching or the jack-up bone even tissue such as periosteum.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of stretching plate in the present invention;
Fig. 3 is the structural representation of maintenance bar in the present invention;
Fig. 4 is the structural representation of drive sleeve in the present invention;
Fig. 5 is the structural representation of another stretching plate in the present invention;
Fig. 6 is anti-cylinder loosening structure schematic diagram in the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, Fig. 2 is the structural representation of stretching plate in the present invention, Fig. 3 is the structural representation of maintenance bar in the present invention, Fig. 4 is the structural representation of drive sleeve in the present invention, Fig. 5 is the structural representation of another stretching plate in the present invention, Fig. 6 is anti-cylinder loosening structure schematic diagram in the present invention, as shown in the figure, the distraction osteogenesis device being applicable to small space in the present embodiment, comprise stretching plate 1, single-degree-of-freedom axial sliding fit is in the maintenance bar 2 of stretching plate 1 and the driving limit assembly for controlling maintenance bar 2 axially-movable, the front end of described maintenance bar 2 with by side seam direct effect in stretching, when distraction osteogenesis device is installed, utilize rig outside side seam open a through hole, maintenance bar 2 is passed through hole and across bone section, the front end of maintenance bar 2 is fixedly connected with interior side seam, described stretching plate 1 is provided with fixing hole 3, with screw stretching plate 1 be fixed on outer side seam and form single-degree-of-freedom axial sliding fit with maintenance bar 2, finally install drive limit assembly make maintenance bar 2 with can by the relative stretching plate 1 of mode fixing again after driving vertically degree of freedom slide, axially represent the axis of maintenance bar 2, represent that forward outer side seam points to the direction of interior side seam, by by the front end of maintenance bar 2 and interior side seam direct effect, and the back segment of maintenance bar 2 is arranged with the single-degree-of-freedom slip vertically of the relative stretching plate 1 of the mode that can be fixed, and utilize driving limit assembly drive maintenance bar 2 and fix, decrease the quantity of fixation steel plate, be applicable to narrow and small operative space, simultaneously the active force of maintenance bar directly act on support rib can vertical stretching or the jack-up bone even tissue such as periosteum.
In the present embodiment, the front end of described maintenance bar 2 is tip or flat head screw structure 4; The thread groove of described nibbed screw structure 4 can arrange comparatively dark, is beneficial to axial limiting and fixes; By nibbed screw structure 4, make the front end of maintenance bar 2 can fast, convenient and stable be fixed on interior side seam, ensure to be moved along stretching direction by stretching bone entirety, and compact conformation, be beneficial to the operation of small space, mounting or dismounting are convenient.
In the present embodiment, described maintenance bar 2 is arranged at the center of stretching plate 1 and vertical with stretching plate 1; Maintenance bar 2 be arranged at stretching plate 1 center and vertical with stretching plate 1 be conducive to whole device stress balance and fixation, avoid stretching plate to produce extra square and turn round and affect fastness.
In the present embodiment, described stretching plate is provided with for the via hole spacing to maintenance bar circumference, described maintenance bar back segment and described via hole is conformal is slidably matched and sidewall is provided with external screw thread 6, described driving limit assembly comprises the drive sleeve that is provided with female thread 7 and the holder for drive sleeve being fixed vertically, and described holder is fixedly connected with 8 with stretching plate; Described stretching plate 1 is provided with the holder 9 for drive sleeve 8 being fixed vertically; By holder 9 pairs of maintenance bar 2 axial restraints, stand fast when ensureing rotary actuation sleeve 8; Described via hole 5 pairs of maintenance bar 2 circumferencial directions are utilized to be fixed, simple and compact for structure, described via hole 5 can be rectangular opening, tri-angle-holed or mounting hole etc., and drive sleeve 8 drives maintenance bar 2 axially-movable by rotary actuation sleeve 8 with maintenance bar 2 threaded engagement, ensure there is larger driving force and drive stable, maintenance bar 2 kinematic accuracy is controlled, ensures the accurate control of stretching amount.
In the present embodiment, described drive sleeve 8 front end outer wall extends radially outward the limiting section 10 formed for axial limiting, and described holder is cylindrical drum and is fixedly installed snap ring removably in cylindrical drum; Described snap ring 11 outer wall interference embeds holder 9, described limiting section 10 is spacing ring, the front end of described spacing ring presses on stretching plate 1, rear end and the snap ring 11 be fixedly installed in holder 9 are rotatably assorted, certainly, also can arrange anti-metal 9a in holder 9 upper end (be lower end with the link of stretching plate 1) threaded engagement, the upper end of anti-metal 9a is wholely set the dead ring 9b for axial compression snap ring 11, avoids snap ring 11 axially-movable; By said structure to drive sleeve 8 axial limiting, mounting or dismounting are convenient, Stability Analysis of Structures.
In the present embodiment, described holder 9, drive sleeve 8 and maintenance bar 2 three are coaxially arranged, and holder 9 is coated at drive sleeve 8 and one-body molded with stretching plate 1; Three coaxially arranges to be beneficial to and ensures that maintenance bar 2 direction of motion is stablized, and compact overall structure, drives smooth and easy, and holder 9 and the one-body molded setting of stretching plate 1 are beneficial to stable connection, avoids holder 9 stressed excessive and come off, ensures that structural strength is large.
In the present embodiment, described via hole 5 is mounting hole; By via hole 5 is arranged to mounting hole, the section of maintenance bar 2 back segment is also kidney-shaped, easy to make, when ensureing that maintenance bar 2 has more area of contact with drive sleeve 8, two side planes of mounting hole are accurate and stable to maintenance bar 2 locking along the circumferential direction, avoid loosening.
In the present embodiment, described drive sleeve rear end face caves inward vertically and forms interface slot 12 for facilitating drive sleeve to drive; Described interface slot 12 radial symmetric is set to two, and facilitate external drive part to embed drive sleeve 8 and rotate, structure is simple, easy to process.
In the present embodiment, the rear end of described nibbed screw structure 4 is fixedly installed baffle ring 13, and described baffle ring 13 is one-body molded with maintenance bar 2; By the setting of baffle ring 13, when mounted, baffle ring 13 presses on interior side seam to maintenance bar 2, and acting on of maintenance bar 2 is applied interior side seam mainly through baffle ring 13, avoids maintenance bar 2 not easily broken with the junction of interior side seam, ensures fixation, stablizes.
In the present embodiment, described stretching plate is provided with at least two fixing holes 3, and is provided with stretching plate plasticity or the structure that fractures between described fixing hole; Described stretching plate is stripe board, the number of fixing hole is six and evenly arranges along stripe board, described stretching plate plasticity or the structure that fractures are that stretching panel edges caves inward formation groove, groove is arranged along stripe board lateral symmetry, described groove is for reducing the intensity on stretching plate between fixing hole, when small space uses, be easy to optionally remove fixing hole to reduce the volume of stretching plate; And groove is beneficial to installing plate deformation and fixes with bone of fitting.
In the present embodiment, described stretching plate 1 is for being provided with stripe board or the circular slab of fixing hole 3; Described fixing hole 3 is multiple, by stretching plate 1 is set to stripe board, is applicable to the distraction osteogenesis between bone and bone, and stretching plate 1 is arranged to circular slab, be applicable to the distraction osteogenesis between bone and periosteum, and described stretching plate 1 is steel plate or titanium plate.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. being applicable to a distraction osteogenesis device for small space, it is characterized in that: comprising stretching plate, single-degree-of-freedom axial sliding fit in the maintenance bar of stretching plate and the driving limit assembly for controlling the axially-movable of maintenance bar.
2. the distraction osteogenesis device being applicable to small space according to claim 1, is characterized in that: the front end of described maintenance bar is tip or flat head screw structure.
3. the distraction osteogenesis device being applicable to small space according to claim 1, it is characterized in that: described stretching plate is provided with for the via hole spacing to maintenance bar circumference, described maintenance bar back segment and described via hole is conformal is slidably matched and sidewall is provided with external screw thread, described driving limit assembly comprises establishes female drive sleeve and the holder for drive sleeve being fixed vertically, and described holder is fixedly connected with stretching plate.
4. the distraction osteogenesis device being applicable to small space according to claim 3, it is characterized in that: described drive sleeve front end outer wall extends radially outward the limiting section formed for axial limiting, and described holder is cylindrical drum and is fixedly installed snap ring removably in cylindrical drum.
5. the distraction osteogenesis device being applicable to small space according to claim 4, is characterized in that: described holder, drive sleeve and drive rod three are coaxially arranged, and holder is coated at drive sleeve and one-body molded with stretching plate.
6. the distraction osteogenesis device being applicable to small space according to claim 5, is characterized in that: described via hole is mounting hole.
7. the distraction osteogenesis device being applicable to small space according to claim 6, is characterized in that: described drive sleeve rear end face caves inward vertically and forms interface slot for facilitating drive sleeve to drive.
8. the distraction osteogenesis device being applicable to small space according to claim 2, is characterized in that: the rear end of described nibbed screw structure is fixedly installed baffle ring, described baffle ring and maintenance bar one-body molded.
9. the distraction osteogenesis device being applicable to small space according to claim 2, is characterized in that: described stretching plate is provided with at least two fixing holes, and is provided with stretching plate plasticity or the structure that fractures between described fixing hole.
10. the distraction osteogenesis device being applicable to small space according to the arbitrary claim of claim 1 to 9, is characterized in that: described stretching plate is the stripe board or the circular slab that are provided with fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510745134.0A CN105286968B (en) | 2015-11-05 | 2015-11-05 | Distraction osteogenesis device suitable for small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510745134.0A CN105286968B (en) | 2015-11-05 | 2015-11-05 | Distraction osteogenesis device suitable for small space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105286968A true CN105286968A (en) | 2016-02-03 |
| CN105286968B CN105286968B (en) | 2019-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510745134.0A Active CN105286968B (en) | 2015-11-05 | 2015-11-05 | Distraction osteogenesis device suitable for small space |
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| Country | Link |
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| CN (1) | CN105286968B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320139A (en) * | 2017-08-04 | 2017-11-07 | 重庆医科大学 | Laparoscope single hole multi-path Rotating-manipulatiodevice device |
| CN113081207A (en) * | 2021-03-31 | 2021-07-09 | 大博医疗科技股份有限公司 | Precise telescopic adjustable periosteum stretching system and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501266A (en) * | 1983-03-04 | 1985-02-26 | Biomet, Inc. | Knee distraction device |
| CN2512392Y (en) * | 2001-12-26 | 2002-09-25 | 李谆 | Quick traction reset fixer for zygomatic bone, and fracture of zygomatic arch micro wound |
| CH692898A5 (en) * | 1998-05-13 | 2002-12-13 | Straumann Inst Ag | Distraction device enables bone fragment removed from bone tobe successively and incrementally distanced from main bone in order to initiate bone growth bridging over gap thus formed |
| US20060058785A1 (en) * | 2002-03-22 | 2006-03-16 | Ernst Fuchs | Distraction device used for osteogenesis |
| DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
| US20120323286A1 (en) * | 2011-06-17 | 2012-12-20 | Christian Krenkel | Device for the distraction of a bone segment |
| WO2014086910A1 (en) * | 2012-12-05 | 2014-06-12 | Celgen Ag | Implant for bone distraction |
-
2015
- 2015-11-05 CN CN201510745134.0A patent/CN105286968B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501266A (en) * | 1983-03-04 | 1985-02-26 | Biomet, Inc. | Knee distraction device |
| CH692898A5 (en) * | 1998-05-13 | 2002-12-13 | Straumann Inst Ag | Distraction device enables bone fragment removed from bone tobe successively and incrementally distanced from main bone in order to initiate bone growth bridging over gap thus formed |
| CN2512392Y (en) * | 2001-12-26 | 2002-09-25 | 李谆 | Quick traction reset fixer for zygomatic bone, and fracture of zygomatic arch micro wound |
| US20060058785A1 (en) * | 2002-03-22 | 2006-03-16 | Ernst Fuchs | Distraction device used for osteogenesis |
| DE102010015687A1 (en) * | 2010-04-21 | 2011-10-27 | Ernst Fuchs | Distraction device for distraction osteogenesis of patient, has guide rail directly connected with magnets e.g. permanent magnets, by drive mechanism, where forces for moving guide rails are transferred against each other by magnets |
| US20120323286A1 (en) * | 2011-06-17 | 2012-12-20 | Christian Krenkel | Device for the distraction of a bone segment |
| WO2014086910A1 (en) * | 2012-12-05 | 2014-06-12 | Celgen Ag | Implant for bone distraction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320139A (en) * | 2017-08-04 | 2017-11-07 | 重庆医科大学 | Laparoscope single hole multi-path Rotating-manipulatiodevice device |
| CN107320139B (en) * | 2017-08-04 | 2023-06-09 | 重庆医科大学 | Single-hole multichannel rotatable operation device of laparoscope |
| CN113081207A (en) * | 2021-03-31 | 2021-07-09 | 大博医疗科技股份有限公司 | Precise telescopic adjustable periosteum stretching system and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN105286968B (en) | 2019-07-26 |
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