CN204618362U - Alveolar bone traction apparatus - Google Patents
Alveolar bone traction apparatus Download PDFInfo
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- CN204618362U CN204618362U CN201520119890.8U CN201520119890U CN204618362U CN 204618362 U CN204618362 U CN 204618362U CN 201520119890 U CN201520119890 U CN 201520119890U CN 204618362 U CN204618362 U CN 204618362U
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Abstract
This utility model relates to a kind of alveolar bone traction apparatus, it is characterized in that: comprise traction support body, it has guiding groove; Fixed traction plate, is fixed on one end of described traction support body, fixed traction plate has multiple first installing hole; Movable pulling seat, constrains in also energy front and back slippage in guiding groove, activity guide seat has the tapped through hole axially run through; Movable towing plate, is fixed on movable pulling seat, movable towing plate has multiple second installing hole; Screw rod, is arranged in guiding groove and also can rotates around own axes, and wherein one end of screw rod forms the drive end rotated for people's drive screw, and meanwhile, screw rod passes and is threaded in the tapped through hole on movable Mobile base.The screw-driven of screw rod and screwed hole can accurately and slowly regulate hauling distance, adjustment process is simple and convenient, and to relate to parts few for the structure of this traction apparatus in addition, mutual alignment and assembly relation simple, that its overall dimensions can be done is very little, is applicable to the vertical distraction to alveolar bone.
Description
Technical field
This utility model belongs to the technical field of the medical apparatus and instruments for oral surgery and plastic surgery operations, particularly relates to a kind of alveolar bone traction apparatus.
Background technology
Alveolar bone is the part that upper and lower jawbone surrounded and supported root of the tooth, be also called alveolar process, the organizational structure of alveolar bone and other bone photos of health are seemingly, alveolar bone is highly plastic tissue, and be also the most active part of human bone, its growth promoter depends on the functional stimulation of tooth, when tooth eruption disorder goes out, alveolar bone starts to be formed, increase, and providing the periodontal membrane in formation a bone attachment surface, alveolar bone absorbs gradually after tooth loses, disappearance, causes the deficiency of alveolar bone vertical height.The deficiency of alveolar bone vertical height can have a strong impact on implantation and the long-term effect of kind of tooth implant.Bear pressure absorbed because alveolar bone has, can the characteristic of hypertrophy by pull strength, the vertical height deficiency adopting distraction osteogenesis to rescue alveolar bone creates conditions for tooth implant implantation.
Special traction apparatus is had at present for cranium jawbone, be widely used in oral and maxillofacial surgery or head surgery and plastic surgery operations, the know-why of this traction apparatus may be summarized to be: first cut the soft tissue around jawbone, after mandibular bone being blocked completely or not exclusively blocking, gradually bone stump is strutted by external force and make formation gap, utilize pull strength bring out the osteogenic ability of jawbone self and continue to form new bone to fill this gap, reach the object extending mandibular bone.This technology utilizes body tissue regeneration potential, can repair various congenital or bone defect that the day after tomorrow, reason caused or defects.
The Chinese utility model patent " a kind of device for stretching jaw-bone " being ZL95200175.6 (notification number is CN2205709Y) as the patent No. discloses a kind of device for stretching jaw-bone, it comprises tractive extender and holder, tractive extender is by the adjustment screw rod through central authorities, before, rear slider and yardstick slide bar composition, before, rear slider is carved with positive hour hands respectively and counter-clockwise female thread also screws in the adjustment screw rod through central authorities by positive hour hands and inhour respectively, on, before lower yardstick slide bar runs through, rear slider upper, lower slide opening, holder is with the bushing type screw rod of Kirschner wire fixation device and nut composition, it is many that this device for stretching jaw-bone has adjustment point.
Complicated structure, the volume of above-mentioned jaw bone tractor are comparatively large, fixing, adjustment inconvenience all to some extent, and are not suitable for carrying out traction hypertrophy to alveolar bone.This just needs to design a traction apparatus being applicable to carrying out drawing to alveolar bone hypertrophy.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of alveolar bone traction apparatus drawn the vertical height of alveolar bone for above-mentioned prior art present situation, and it has, and structure is simple, secured adjusted convenient, volume is little, regulate advantage accurately.
This utility model solves the problems of the technologies described above adopted technical scheme: a kind of alveolar bone traction apparatus, is characterized in that: comprise traction support body, it has the guiding groove arranged along its length, and the rear and front end of guiding groove is covered; Fixed traction plate, is fixed on one end of described traction support body, fixed traction plate has multiple the first installing hole worn for tapping screw; Movable pulling seat, constrains in also energy front and back slippage in described guiding groove, activity guide seat has the tapped through hole axially run through; Movable towing plate, is fixed on movable pulling seat, movable towing plate has multiple the second installing hole worn for tapping screw; Screw rod, is arranged in guiding groove and also can rotates around own axes, and wherein one end of screw rod passes the drive end of one end formation for the rotation of people's drive screw of guiding groove, and meanwhile, screw rod passes and is threaded in the tapped through hole on described movable Mobile base.
Above-mentioned traction support body is made up of traction frame, back-up ring and ring for fixing, described guiding groove is arranged on traction frame, described ring for fixing and back-up ring are separately fixed at the two ends of traction frame to be covered the rear and front end of guiding groove, described fixed traction plate is weldingly fixed on the traction frame of back-up ring side, one end activity of described screw rod is plugged on described back-up ring, the other end of screw rod passes ring for fixing to form described drive end, the cross section of this drive end is polygon, and the two ends of screw rod are respectively equipped with the first gear shoulder that matches with back-up ring and keep off the second gear shoulder of joining with ring for fixing.This traction support body is made up of three parts, guiding groove can be designed as axially through groove, so convenient processing, the shutoff of guiding groove is by being fixed on traction frame two ends back-up ring and ring for fixing covers, also facilitate the hole processing on back-up ring and plug for screw rod simultaneously, and on ring for fixing, conveniently process the hole passed for screw rod, after above three parts parts processings complete, again three parts are welded together just to be formed and meet the traction support body of designing requirement, process simple and convenient and cost is low.
Above-mentioned guiding groove is made up of the circular trough portion and superposed bar-shaped trough portion being positioned at bottom, and bar-shaped trough portion communicates with circular trough portion, and the radial Breadth Maximum in circular trough portion is greater than the width in bar-shaped trough portion; The bottom of described movable pulling seat has the cylindrical portion that profile and circular trough portion match, described tapped through hole is arranged in this cylindrical portion, the middle part of movable pulling seat has the guide portion that profile and bar-shaped trough portion match, and the lower surface of movable pulling seat is then shelved on traction frame upper surface.Radial Breadth Maximum because of circular trough portion is greater than the width in bar-shaped trough portion, to guarantee the cylindrical portion of movable pulling seat bottom to constrain in circular trough portion only can before and after slippage, more precisely can regulate hauling distance like this.
There is in the middle part of the upper surface of above-mentioned movable pulling seat the fixed leg raised up, described movable towing plate has the fixing hole for described fixed leg inserting; Before and after the upper surface of described movable pulling seat, both sides have the inserted block raised up, and the both sides, front and back of described movable towing plate have the slot for described inserted block inserting.By fixed leg and fixing hole, and the location fit of inserted block and slot, movable pulling seat is connected more firm with movable towing plate.
Because being arranged in oral cavity when alveolar bone traction apparatus uses, for preventing traction frame sliding injury oral mucosa, the lower surface of above-mentioned traction frame is curved.
The lower surface of above-mentioned fixed traction plate has to lower convexity and the joint bar that matches of profile and bar-shaped trough portion, and this joint bar is plugged in bar-shaped trough portion and is welded and fixed with traction frame.By the location fit in joint bar and bar-shaped trough portion, make fixed traction plate and traction frame fixing more firm.
Under the state that described movable pulling seat is positioned at outermost end, spacing between movable towing plate and fixed traction plate is this maximum traction spacing, maximum traction spacing can be set as between 6 ~ 20 millimeters, and the length of described traction frame is than distance between maximum traction 10.8 millimeters.According to individual variation, can select the traction apparatus of suitable size in maximum reach spacing, the Design of length of aforementioned traction frame is the most reasonable, namely ensures that traction frame can not be oversize, also makes traction frame leave suitable with fixed traction plate and the installation site of movable pulling seat.
Above-mentioned first installing hole and the second installing hole are shoulder hole, and the macropore portion of shoulder hole is bellmouth.Do not expose in the macropore portion that this installing hole can make the head of Titanium Alloy Screw be hidden in installing hole, prevent because mounting screw exposes sliding injury oral mucosa.
The left and right sides of above-mentioned fixed traction plate all has the first L-shaped fixing arm, each first fixing arm is provided with two described first installing holes, the middle part of fixed traction plate has outward extending middle arm, and middle arm is provided with described first installing hole; The left and right sides of described movable towing plate all has the first L-shaped movable arm, and each first movable arm is provided with two described second installing holes.
The left and right sides of above-mentioned fixed traction plate all has the second T-shaped fixing arm, each second fixing arm is provided with two described first installing holes, the middle part of fixed traction plate has outward extending middle arm, and middle arm is provided with described first installing hole; The left and right sides of described movable towing plate all has the second T-shaped movable arm, and each second movable arm is provided with three described second installing holes.
Be more than the fixed traction plate of two kinds of different profiles and movable towing plate structure, to be applicable to the reach to upper alveolar bone and lower alveolar bone, meanwhile, also make installing hole fixed traction plate being outputed suitable quantity, guarantee that fixed traction plate and movable towing plate and the firm of alveolar bone are fixed.Certain fixed traction plate is also not limited to above-mentioned two kinds of structures, and fixed traction plate also can without the need to arranging fixing arm, arm in the middle of only needing.
Compared with prior art, the utility model has the advantage of: during use, only need cut trail openning at corresponding alveolar bone soft tissue, fixed traction plate is fixed on the alveolar bone of suitable order, again movable towing plate is fixed on the alveolar bone above otch, during adjustment, rotating screw bolt, according to the adjustment operation principle that is threaded of screw rod and screwed hole, force the screw rod slippage up or down relatively together of movable towing plate and movable pulling seat, produce gap, pull strength is utilized to bring out the osteogenic ability of jawbone self and continue to form new bone to fill this gap, the screw-driven of screw rod and screwed hole can accurately and slowly regulate hauling distance, just whole traction apparatus can be disassembled after only need unloading fixed traction plate and movable towing plate after adjustment completes, and then alveolar bone wound surface is processed, adjustment process is simple and convenient simultaneously, to relate to parts few for the structure of this traction apparatus in addition, mutual alignment and assembly relation simple, that its overall dimensions can be done is very little, be applicable to the vertical distraction to alveolar bone.
Accompanying drawing explanation
Fig. 1 is the sectional view of this utility model first embodiment;
Fig. 2 is the top view of this utility model first embodiment;
Fig. 3 is the A-A direction view of Fig. 1;
Fig. 4 is the upward view of movable towing plate in this utility model first embodiment;
Fig. 5 is that the B-B of Fig. 1 is to sectional view;
Fig. 6 is the upward view of fixed traction plate in this utility model first embodiment;
Fig. 7 is the sectional view of traction frame in this utility model first embodiment;
Fig. 8 is the sectional view of sliding traction seat in this utility model first embodiment;
Fig. 9 is the structural representation of screw rod in this utility model first embodiment;
Figure 10 is the sectional view of this utility model second embodiment;
Figure 11 is the top view of this utility model second embodiment;
Figure 12 is that the C-C of Figure 10 is to sectional view;
Figure 13 is the upward view of movable towing plate in this utility model second embodiment;
Figure 14 is that the D-D of Figure 10 is to sectional view;
Figure 15 is the upward view of fixed traction plate in this utility model second embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Fig. 1 ~ 9, be first embodiment of the present utility model.
A kind of alveolar bone traction apparatus, comprise traction support body 1, it has the guiding groove 2 arranged along its length, the rear and front end of guiding groove 2 is covered.Traction support body 1 is made up of traction frame 11, back-up ring 12 and ring for fixing 13, and the lower surface 111 of traction frame 11 is curved.Guiding groove 2 is arranged on traction frame 11, and back-up ring 12 and ring for fixing 13 are weldingly fixed on the two ends of traction frame 11 respectively to be covered the rear and front end of guiding groove 2.Guiding groove 2 is by the circular trough portion 21 and the superposed bar-shaped trough portion group 22 one-tenth that are positioned at bottom, and bar-shaped trough portion 22 communicates with circular trough portion 21, and the radial Breadth Maximum in circular trough portion 21 is greater than the width in bar-shaped trough portion 22.
Fixed traction plate 3, fixed traction plate 3 is weldingly fixed on the traction frame 11 of back-up ring 12 side, the lower surface of fixed traction plate 3 has to lower convexity and the joint bar 32 that matches of profile and bar-shaped trough portion 22, and this joint bar 32 is plugged in bar-shaped trough portion 22 and is welded and fixed with traction frame 11.Fixed traction plate 3 having multiple the first installing hole 31, first installing hole 31 supplying tapping screw to wear is shoulder hole, and the macropore portion of shoulder hole is bellmouth, and tapping screw is diameter 2.0mm Titanium Alloy Screw.The left and right sides of fixed traction plate 3 all has the first L-shaped fixing arm 33, each first fixing arm 33 is provided with two the first installing holes 31, the middle part of fixed traction plate 3 has outward extending middle arm 34, and middle arm 34 is provided with first installing hole 31.
Movable pulling seat 5, constrains in also energy front and back slippage in described guiding groove 2, activity guide seat 5 has the tapped through hole 511 axially run through; The bottom of movable pulling seat 5 has the cylindrical portion 51 that profile and circular trough portion 21 match, tapped through hole 511 is arranged in this cylindrical portion 51, the middle part of movable pulling seat 5 has the guide portion 52 that profile and bar-shaped trough portion 22 match, and the lower surface of movable pulling seat 5 is then shelved on traction frame 11 upper surface.There is in the middle part of the upper surface of movable pulling seat 5 fixed leg 53 raised up, movable towing plate 6 has the fixing hole 62 for fixed leg 53 inserting; Before and after the upper surface of movable pulling seat 5, both sides have the inserted block 54 raised up, and the both sides, front and back of movable towing plate 6 have the slot 63 for inserted block 54 inserting.
Movable towing plate 6, is fixed on movable pulling seat 5, movable towing plate 6 has multiple the second installing hole 61 worn for tapping screw; Second installing hole 61 is shoulder hole, and the macropore portion of shoulder hole is bellmouth.The left and right sides of movable towing plate 6 all has the first L-shaped movable arm 64, and each first movable arm 64 is provided with two the second installing holes 61.
Screw rod 4, be arranged in guiding groove 2 and also can rotate around own axes, wherein one end of screw rod 4 passes the drive end 41 of one end formation for the rotation of people's drive screw of guiding groove 2, simultaneously, screw rod 4 passes and is threaded in the tapped through hole 511 on described movable Mobile base 5, the screw rod hauling distance that often rotates a circle is 0.4mm..One end activity of screw rod 4 is plugged on back-up ring 12, the other end of screw rod 4 passes ring for fixing 13 to form drive end 41, the cross section of this drive end 41 is polygon, and the two ends of screw rod 4 are respectively equipped with the first gear shoulder 42 that matches with back-up ring 12 and keep off the second gear shoulder 43 of joining with ring for fixing 13.
Under the state that movable pulling seat 5 is positioned at outermost end, spacing between movable towing plate 6 and fixed traction plate 3 is this maximum traction spacing L1, maximum traction spacing L1 is set as between 6 ~ 20 millimeters, 6,8,10,12,15,20 millimeters of gears can be divided into, rotate according to practical situation and use, the length L of traction frame 11 is than long 10.8 millimeters of maximum traction spacing L1.
In the present embodiment, movable towing plate 3 and fixed traction plate 6 should adopt pure titanium TA3 material, and other parts adopt titanium alloy TC 4 material.Hardness >=the 260HV10 of titanium alloy, the hardness >=150HV10 of pure titanium.
As shown in Figure 10 ~ 15, be second embodiment of the present utility model.
The difference of the present embodiment and first embodiment is: the left and right sides of fixed traction plate 3 all has the second T-shaped fixing arm 35, each second fixing arm 35 is provided with two the first installing holes 31, the middle part of fixed traction plate 3 has outward extending middle arm 34, and middle arm 34 is provided with first installing hole 31; The left and right sides of movable towing plate 6 all has the second T-shaped movable arm 65, and each second movable arm 65 is provided with three the second installing holes 61.
During use, select the model of suitable alveolar bone traction apparatus and determine traction apparatus installation site, only need cut trail openning at corresponding alveolar bone soft tissue, fixed traction plate 3 is fixed on the alveolar bone of suitable order, again movable towing plate 6 is fixed on the alveolar bone above otch, during adjustment, hexagonal in retractor handle is inserted the little outer-hexagonal drive end 41 on screw rod 4, rotation traction traction device handle (direction indicated by handle upward arrow) in the direction of the clock, screw rod 4 is driven to rotate, according to the adjustment operation principle that is threaded of screw rod 4 and screwed hole 511, force screw rod 4 slippage up or down relatively together of movable towing plate 6 and movable pulling seat 5, it is 0.4mm that screw rod 4 often revolves the hauling distance that turns around, produce gap, pull strength is utilized to bring out the osteogenic ability of jawbone self and continue to form new bone to fill this gap, the screw-driven of screw rod 4 and screwed hole 511 can accurately and slowly regulate hauling distance, after reaching clinical Expected Results, stop traction.Just whole traction apparatus can be disassembled after finally only need unloading fixed traction plate 3 and movable towing plate 6, and then alveolar bone wound surface is processed, adjustment process is simple and convenient simultaneously, to relate to parts few for the structure of this traction apparatus in addition, mutual alignment and assembly relation simple, that its overall dimensions can be done is very little, is applicable to the vertical distraction to alveolar bone.
Although more than describe in detail the preferred embodiments of the present invention, should be expressly understood that, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an alveolar bone traction apparatus, is characterized in that: comprise
Traction support body (1), it has the guiding groove (2) arranged along its length, the rear and front end of guiding groove (2) is covered;
Fixed traction plate (3), is fixed on one end of described traction support body (1), fixed traction plate (3) has multiple the first installing hole (31) worn for tapping screw;
Movable pulling seat (5), constrains in also energy front and back slippage in described guiding groove (2), activity guide seat (5) has the tapped through hole (511) axially run through;
Movable towing plate (6), is fixed on movable pulling seat (5), movable towing plate (6) has multiple the second installing hole (61) worn for tapping screw;
Screw rod (4), be arranged in guiding groove (2) and also can rotate around own axes, wherein one end of screw rod (4) passes the drive end (41) of one end formation for the rotation of people's drive screw of guiding groove (2), meanwhile, screw rod (4) passes and is threaded in the tapped through hole (511) on described movable Mobile base (5).
2. alveolar bone traction apparatus according to claim 1, it is characterized in that: described traction support body (1) is by traction frame (11), back-up ring (12) and ring for fixing (13) composition, described guiding groove (2) is arranged on traction frame (11), described back-up ring (12) and ring for fixing (13) are separately fixed at the two ends of traction frame (11) to be covered the rear and front end of guiding groove (2), described fixed traction plate (3) is weldingly fixed on the traction frame (11) of back-up ring (12) side, one end activity of described screw rod (4) is plugged on described back-up ring (12), the other end of screw rod (4) passes ring for fixing (13) to form described drive end (41), the cross section of this drive end (41) is polygon, the two ends of screw rod (4) are respectively equipped with the first gear shoulder (42) that matches with back-up ring (12) and keep off the second gear shoulder (43) of joining with ring for fixing (13).
3. alveolar bone traction apparatus according to claim 2, it is characterized in that: described guiding groove (2) is become by the circular trough portion (21) and superposed bar-shaped trough portion group (22) being positioned at bottom, bar-shaped trough portion (22) communicates with circular trough portion (21), and the radial Breadth Maximum of circular trough portion (21) is greater than the width of bar-shaped trough portion (22); The bottom of described movable pulling seat (5) has the cylindrical portion (51) that profile and circular trough portion (21) match, described tapped through hole (511) is arranged in this cylindrical portion (51), the middle part of movable pulling seat (5) has the guide portion (52) that profile and bar-shaped trough portion (22) match, and the lower surface of movable pulling seat (5) is then shelved on traction frame (11) upper surface.
4. alveolar bone traction apparatus according to claim 3, it is characterized in that: there is in the middle part of the upper surface of described movable pulling seat (5) fixed leg (53) raised up, described movable towing plate (6) has the fixing hole (62) for described fixed leg (53) inserting; Before and after the upper surface of described movable pulling seat (5), both sides have the inserted block (54) raised up, and the both sides, front and back of described movable towing plate (6) have the slot (63) for described inserted block (54) inserting.
5. alveolar bone traction apparatus according to claim 3, is characterized in that: the lower surface (111) of described traction frame (11) is curved.
6. alveolar bone traction apparatus according to claim 3, it is characterized in that: the lower surface of described fixed traction plate (3) has to lower convexity and the joint bar (32) that matches of profile and bar-shaped trough portion (22), and this joint bar (32) is plugged in bar-shaped trough portion (22) and is welded and fixed with traction frame (11).
7. alveolar bone traction apparatus according to claim 2, it is characterized in that: under the state that described movable pulling seat (5) is positioned at outermost end, spacing between movable towing plate (6) and fixed traction plate (3) is maximum traction spacing (L1), maximum traction spacing (L1) is set as between 6 ~ 20 millimeters, and the length (L) of described traction frame (11) is than long 10.8 millimeters of maximum traction spacing (L1).
8. alveolar bone traction apparatus according to claim 1, is characterized in that: described first installing hole (31) and the second installing hole (61) are shoulder hole, and the macropore portion of shoulder hole is bellmouth.
9. alveolar bone traction apparatus according to claim 1, it is characterized in that: the left and right sides of described fixed traction plate (3) all has the first L-shaped fixing arm (33), each first fixing arm (33) is provided with two described first installing holes (31), the middle part of fixed traction plate (3) has outward extending middle arm (34), and middle arm (34) is provided with described first installing hole (31); The left and right sides of described movable towing plate (6) all has the first L-shaped movable arm (64), and each first movable arm (64) is provided with two described second installing holes (61).
10. alveolar bone traction apparatus according to claim 1, it is characterized in that: the left and right sides of described fixed traction plate (3) all has the second T-shaped fixing arm (35), each second fixing arm (35) is provided with two described first installing holes (31), the middle part of fixed traction plate (3) has outward extending middle arm (34), and middle arm (34) is provided with described first installing hole (31); The left and right sides of described movable towing plate (6) all has the second T-shaped movable arm (65), and each second movable arm (65) is provided with three described second installing holes (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119890.8U CN204618362U (en) | 2015-03-02 | 2015-03-02 | Alveolar bone traction apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119890.8U CN204618362U (en) | 2015-03-02 | 2015-03-02 | Alveolar bone traction apparatus |
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| CN204618362U true CN204618362U (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665901A (en) * | 2015-03-02 | 2015-06-03 | 宁波慈北医疗器械有限公司 | Alveolar bone tractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665901A (en) * | 2015-03-02 | 2015-06-03 | 宁波慈北医疗器械有限公司 | Alveolar bone tractor |
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