CN201316306Y - Combined type external fixation device for articular fracture - Google Patents
Combined type external fixation device for articular fracture Download PDFInfo
- Publication number
- CN201316306Y CN201316306Y CNU2008201245129U CN200820124512U CN201316306Y CN 201316306 Y CN201316306 Y CN 201316306Y CN U2008201245129 U CNU2008201245129 U CN U2008201245129U CN 200820124512 U CN200820124512 U CN 200820124512U CN 201316306 Y CN201316306 Y CN 201316306Y
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- purl
- external fixator
- articular fracture
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Abstract
A combined type external fixation device for articular fracture comprises an arc-shaped fixed plate; at least three L-shaped connecting bars and at least one T-shaped universal connecting bar are mounted on the arc-shaped fixed plate; at least one first needle locking device is mounted on each L-shaped connecting bar; the T-shaped universal connecting bar comprises a longitudinal screw rod and a transverse connecting seat; the longitudinal screw rod is mounted on the arc-shaped fixed plate; a tosh seat is arranged at the middle part of the transverse connecting seat; a tosh is arranged in the tosh seat; a tosh casing is arranged on the exterior of the tosh seat; the upper end of the tosh casing extends inward so as to clamp the tosh in the tosh casing; the tosh is fixed with one end of the longitudinal screw rod; an internal thread is formed at the lower part of the tosh seat; and at least two second needle locking devices are mounted on the transverse connecting seat. The combined type external fixation device provided by the utility model has simple structure and fast and convenient operation, and achieves the three-dimensional stereoscopic reposition and stable fixation of articular fracture.
Description
Technical field
This utility model relates to a kind of combination type articular fracture external fixator, belongs to medical orthopaedics external fixation device field.
Background technology
At present, human beings'health and living standard in the trauma fracture serious threat.Fracture external fixator is meant at the far and near end of fracture percutaneous and penetrates locking pin that reuse connecting rod and purl device will be exposed at the outer pin end of skin and couple together, fracture site is carried out fixed a kind of therapeutic device.Its advantage is and can not destroy local blood circulation again for fracture end provides stable fixing, from mechanics and biologys two aspect be that advantage has been created in union of fracture.Existing external fixator divides from structure, mainly contains unilateral, polygon formula and annular three major types, and wherein unilateral is simple to operate but less stable must use thicker locking pin just can reach required stability.Though and polygon formula and annular external fixator stability are good than unilateral, operate extremely loaded down with trivial details.And existing external fixator mainly is that cadre fracture is resetted, be difficult to realize to the joint part fracture reset and fixing, therefore limited the performance of external fixator advantage.
The utility model content
The technical problems to be solved in the utility model is the shortcoming that overcomes above-mentioned external fixator, a kind of simple in structure, convenient to operation, good stability is provided and can realizes articular fracture is resetted and fixed combination type articular fracture external fixator.
For solving the problems of the technologies described above, this utility model adopts following technical scheme:
A kind of combination type articular fracture external fixator comprises the arc stator, and at least three L type connecting rods and at least one universal connecting rod of T type are housed on the arc stator, on the every L type connecting rod the first purl device that at least one is used to lock locking pin is housed; The universal connecting rod of described T type comprises longitudinal screw and horizontal Connection Block, described longitudinal screw is contained on the arc stator, the middle part of described horizontal Connection Block is provided with the rotation ball seat, in the rotation ball seat screw is arranged, the outside of described rotation ball seat is provided with the screw shell, the upper end of screw shell extends internally screw is stuck in the screw shell, and an end of described screw and longitudinal screw fixes, and the bottom of described rotation ball seat is provided with the internal thread that is used for fixing screw; At least two second purl devices that are used to lock locking pin are housed on the described horizontal Connection Block.
This utility model combination type articular fracture external fixator has the fixing hole of the some L of being used for fixing type connecting rods and the universal connecting rod of T type on the wherein said arc stator.
This utility model combination type articular fracture external fixator, wherein said L type connecting rod comprises Connection Block and connection tube, the connection tube lower end is threaded with Connection Block, described purl device is contained on the connection tube, have first chute on the Connection Block, Connection Block fixes by bolt and arc stator at the first chute place.
This utility model combination type articular fracture external fixator, be with U-shape lock spare and fine-tuning nut on the wherein said longitudinal screw, described fine-tuning nut is positioned at the U-shape lock groove of U-shape lock spare, described longitudinal screw is by nut and the locking of U-shape lock spare, described U-shape lock spare is provided with screw, and U-shape lock spare is by being bolted on the arc stator.
This utility model combination type articular fracture external fixator, the wherein said first purl device is identical with the structure of the second purl device, the described first purl device is a column type, have the first purl groove on it, be bolted with first double-screw bolt that is used for locking pin is locked in the first purl groove in a side of the first purl groove on the first purl device, opposite side is provided with second double-screw bolt, be with first contiguous block and second contiguous block on second double-screw bolt, be respectively equipped with symmetric semicircle column type breach on first contiguous block and second contiguous block, the first purl device is by second double-screw bolt, first contiguous block, second contiguous block and nut and connection tube fix; The described second purl device is a column type, have the second purl groove on it, be bolted with the 3rd double-screw bolt that is used for locking pin is locked in the second purl groove in a side of the second purl groove on the second purl device, opposite side is provided with the 4th double-screw bolt, be arranged with two second chutes on the described horizontal Connection Block, the described second purl device is fixed on the second chute place by the 4th double-screw bolt and nut.
This utility model combination type articular fracture external fixator, the excircle of wherein said fine-tuning nut is provided with the hole.
This utility model combination type articular fracture external fixator, wherein said arc stator is semi-ring type or full-annular type; The two ends of semi-ring type stator have union joint, and the thickness of union joint is half of other segment thicknesses of semi-ring type stator, has screw on the union joint; Described full-annular type stator is a single piece or is assembled by two semi-ring type stators.
This utility model combination type articular fracture external fixator, wherein said locking pin has needle body, and the front end face of needle body is provided with the portion of thrusting, and the described portion of thrusting is a pyramid type, thrusts the diameter of the maximum gauge of portion less than the needle body front end face.
This utility model combination type articular fracture external fixator, wherein said fixing hole is circle or long trough.
This utility model combination type articular fracture external fixator, wherein said first chute, second chute are long trough, described connection tube is a hollow pipe.
This utility model combination type articular fracture external fixator by the arc stator, be contained in L type connecting rod on the stator and the universal connecting rod of T type and purl device and form, it is simple in structure, and is convenient to operation; The universal connecting rod of T type is provided with screw, makes the horizontal Connection Block on it can carry out universal rotation, thereby has realized the 3 D stereo of articular fracture is resetted and held stationary.
Description of drawings
Fig. 1 is the front view of this utility model combination type articular fracture external fixator;
Fig. 2 is the vertical view of semi-ring type stator;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is the vertical view of full-annular type stator;
Fig. 6 is the right view of Fig. 5;
Fig. 7 is the front view of L type connecting rod;
Fig. 8 is the right view of Fig. 7;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the front view of a kind of embodiment of the universal connecting rod of T type;
Figure 11 is the vertical view of Figure 10;
Figure 12 is the broken section enlarged drawing at the screw place of the universal connecting rod of T type;
Figure 13 is the structure chart of a kind of embodiment of locking pin;
Figure 14 is the front view of the another kind of embodiment of the universal connecting rod of T type;
Figure 15 is the left view of Figure 14;
Figure 16 is the vertical view of Figure 14.
The specific embodiment
As shown in Figure 1 and Figure 4, a kind of combination type articular fracture external fixator, comprise arc stator 1, three L type connecting rods 2 and the universal connecting rod 3 of T type are housed on the arc stator 1, a first purl device 5 that is used to lock locking pin 4 is housed on the every L type connecting rod 2, two second purl devices 11 that are used to lock locking pin 4 are housed on the every universal connecting rod 3 of T type.The purl device is used to lock locking pin 4, generally with purl device locking one and half pins, with full pin of two purl device lockings.For ease of describing, it is identical with the structure of the second purl device 11 that the purl device is divided into the second purl device, 11, the first purl devices 5 that are contained in the first purl device 5 on the L type connecting rod 2 and are contained on the universal connecting rod 3 of T type.
As shown in Figure 4, have the fixing hole 12 of the some L of being used for fixing type connecting rods 2 and the universal connecting rod 3 of T type on the arc stator 1, fixing hole 12 can be made as circular (see figure 5) or long trough (see figure 2), is set to convenient mobile L type connecting rod 2 of long trough and the universal connecting rod 3 of T type.As shown in Figures 2 and 3, in first kind of embodiment, arc stator 1 is made as the semi-ring type, and it comprises the union joint 42 at fixing sheet body 43 and two ends thereof, and the thickness of union joint 42 is half of thickness of fixing sheet body 43, has screw 44 on the union joint 42.The purpose that union joint 42 is set is conveniently two semi-ring type stators to be assembled into a full-annular type stator, so semi-ring type stator also can include only fixing sheet body 43 and union joint 42 is not set at two ends.As shown in Figure 5 and Figure 6, in second kind of embodiment, arc stator 1 is made as full-annular type, and this full-annular type stator assembles by with bolt the union joint 42 of two semi-ring type stators being fixed.The full-annular type stator also can be a single piece.
To shown in Figure 8, L type connecting rod 2 comprises Connection Block 13 and connection tube 14 as Fig. 7, and connection tube 14 lower ends and Connection Block 13 are fixed by pin, also can adopt to be threaded.Be economical with materials, weight reduction, connection tube 14 is selected hollow pipe for use.Having first chute, 15, the first chutes 15 on the Connection Block 13 is long trough.Connection Block 13 fixes by bolt 16 and arc stator 1 at first chute, 15 places.The first purl device 5 is a column type, have the first purl groove 23 on it, be bolted with first double-screw bolt 27 that is used for locking pin 4 is locked in the first purl groove 23 in a side of the first purl groove 23 on the first purl device 5, opposite side is provided with second double-screw bolt 28, be with first contiguous block 29 and second contiguous block 30 on second double-screw bolt 28, be respectively equipped with symmetric semicircle column type breach 31 on first contiguous block 29 and second contiguous block 30,32, by connection tube 14 being clipped in the column type breach that forms by first contiguous block 29 and second contiguous block 30, and, the first purl device 5 can be fixed on the connection tube 14 33 lockings of second double-screw bolt, 28 usefulness nuts.Unclamp nut 33, slide up and down first contiguous block 29 and second contiguous block 30, can adjust first position of purl device 5 on connection tube 14.Unclamp the nut of set bolt 16, bolt 16 is slided or be rotatably connected seat 13 and bolt 16 in first chute 15, can adjust the position of the connection tube 14 and the first purl device 5.As required, can fix a plurality of first purl devices 5 on the connection tube 14.
Extremely shown in Figure 12 as Figure 10, in a kind of embodiment of the universal connecting rod of T type, the universal connecting rod 3 of T type comprises longitudinal screw 6 and horizontal Connection Block 7, laterally the middle part of Connection Block 7 is fixed with rotation ball seat 8, in the rotation ball seat 8 screw 9 is arranged, the outside of rotation ball seat 8 is bolted with screw shell 10, the upper end of screw shell 10 extends internally so that screw 9 is stuck in the screw shell 10, screw 9 welds with an end of longitudinal screw 6, and the bottom of rotation ball seat 8 is bolted with the interior double-screw bolt 48 that is used for fixing screw 9.Laterally being arranged with two second chutes, 39, the second chutes 39 on the Connection Block 7 is long trough.The second purl device 11 is a column type, have the second purl groove 34 on it, be bolted with the 3rd double-screw bolt 37 that is used for locking pin 4 is locked in the second purl groove 34 in a side of the second purl groove 34 on the second purl device 11, opposite side is provided with the 4th double-screw bolt 36, the 4th double-screw bolt 36 passes second chute 39, with nut 40 lockings.Longitudinal screw 6 is contained on the arc stator 1 by nut 25, unclamps nut 25, moves up and down longitudinal screw 6, can adjust the position of the horizontal Connection Block 7 and the second purl device 11.
Extremely shown in Figure 16 as Figure 14, in the another kind of embodiment of the universal connecting rod of T type, also be with U-shape lock spare 17 and fine-tuning nut 18 on the longitudinal screw 6, fine-tuning nut 18 is positioned at the U-shape lock groove 19 of U-shape lock spare 17, longitudinal screw 6 is by nut 20 and 17 lockings of U-shape lock spare, and U-shape lock spare 17 is fixed on the arc stator 1 by bolt 22.Unclamp nut 20,, longitudinal screw 6 is moved up and down at leisure, so that the position of longitudinal screw 6 is finely tuned, thereby realize the position of the horizontal Connection Block 7 and the second purl device 11 is finely tuned by rotary fine adjustment nut 18.Regulate for convenient, hole 41 is set on the excircle of fine-tuning nut 18, can will come rotary fine adjustment nut 18 in the osseous pin patchhole 41.
The locking pin 4 that uses in this utility model can be a various ways, as thrusts end and be tip or screwed locking pin etc.As shown in figure 13, locking pin shown in the present embodiment 4 has needle body 45, and the front end face 46 of needle body 45 is provided with the portion of thrusting 47, thrusts portion 47 and is pyramid type, thrusts the diameter of the maximum gauge of portion 47 less than the front end face 46 of needle body 45.When using this locking pin, only thrust portion 47 and thrust in the sclerotin, and, make the needle body 45 can not be in front slide penetrates cortical bone, thereby prevented that locking pin 4 is loosening, better the bone piece at stable fracture position because the front end face of needle body is stuck on the cortical bone.
The quantity of the purl device of installing on the L type connecting rod of installing on the arc stator 12 and the quantity of the universal connecting rod 3 of T type and the L type connecting rod 2 is decided according to the situation of reality fracture.If fracture is more serious, need more locking pin 4 fracture site could be fixed, more purl device will be installed, correspondingly the quantity of L type connecting rod 2 and the universal connecting rod 3 of T type will increase.If Fracture Simple, the quantity of locking pin 4 can correspondingly reduce, but if will firmly fix fracture site, then need a full pin and one and half pins at least at fracture joint far-end, and need two and half pins at least at joint fracture near-end, therefore three L type connecting rods 2 and the universal connecting rod 3 of T type will be installed at least.Three L type connecting rods are used for fixing with fracture joint far-end, and two L type connecting rods wherein are used for locking a full pin, and another root L type connecting rod is used for locking one and half pins.The universal connecting rod of T type is used for fixing with joint fracture near-end, each purl device locking one and half pin on it.
As shown in Figure 1 and Figure 4, fixing with fracture joint far-end 50 earlier when using this utility model, fixing with joint fracture near-end 51 again.L type connecting rod fixedly the time, is chosen the suitable fixing hole 12 that L type connecting rod 2 is installed with fracture joint far-end 50 earlier by half pin, and sliding connecting base 13 again, with connection tube 14 adjust to need the position, with bolt 16 and nut Connection Block 13 is fixed then.Slide first contiguous block 29 and second contiguous block 30 are adjusted to the position that needs with the first purl device 5, with second double-screw bolt 28 and nut 33 the first purl device 5 are fixed then.Holding end with half pin places in first lock slots 23 earlier, will thrust end then and thrust in the sclerotin or the pushing and withstanding sclerotin, tightens first double-screw bolt 27, with the holding end locking of half pin.With L type connecting rod by full pin with fracture joint far-end 50 fixedly the time, earlier full pin is passed skeleton by dissecting security doctrine, Connection Block 13 and first contiguous block 29 on the connection tube 14 and second contiguous block 30 of two L type connecting rods 2 at full pin two ends again slides respectively, respectively the first purl device 5 on these two L type connecting rods 2 is adjusted to the holding end of full pin, thrust the end position, respectively the Connection Block 13 of these two L type connecting rods 2 is fixed then, holding end with full pin, thrusting end places respectively in the first purl groove 23 on these two first purl devices 5, respectively these two first purl devices 5 are fixed then, and it is tighten first double-screw bolt 27 two ends of full pin are fixed, thereby fixing with fracture joint far-end 50.Begin fixing joint place fracture near-end 51 then, choose the suitable fixing hole 12 that the universal connecting rod 3 of T type is installed, longitudinal screw 6 is inserted this fixing hole 12, determine the fixed position of longitudinal screw 6 with nut 25 longitudinal screw 6 to be fixed then according to the high and low position of horizontal Connection Block 7 needs.Rotate horizontal Connection Block 7, adjust its direction and position according to sclerite displacement characteristics, double-screw bolt 48 is fixed screw 9 in tightening then, the 4th double-screw bolt 36 is slided in second chute 39, the second purl device 11 is adjusted to the position that needs, with nut 40 the 4th double-screw bolt 36 is fixed then.The holding end of half pin is placed in second lock slots 34, after will thrusting end then and thrusting in the sclerite or make its pushing and withstanding sled dial sclerite to reset, by tightening the 3rd double-screw bolt 37, with the holding end locking of half pin, realized the ossa articularia folded block reset and fixing.See the sclerite anatomical reduction of being unrealized as perspective, can adjust resetting up and down by the upper-lower position of regulating longitudinal screw 6 to sclerite, adjust spinning reduction by rotating horizontal Connection Block 7, unclamp the 3rd double-screw bolt 37 and adjust resetting inside and outside the sclerite by push-and-pull locking pin 4 to sclerite.
This utility model is compared with existing fracture external fixator, realized that articular fracture is carried out three-dimensional to be resetted and fix, increased versatility and the practicality of external fixator to the intra-articular fracture treatment, further improved curative effect, reduced complication, made it easy to clinical practice and more be applicable to field emergency.It is mainly used in resetting of articular fracture and fixing, can certainly be used for cadre's treatment of fractures.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from this utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of this utility model claims.
Claims (10)
1, a kind of combination type articular fracture external fixator, comprise arc stator (1), it is characterized in that: at least three L type connecting rods (2) and at least one universal connecting rod of T type (3) are housed on the described arc stator (1), the first purl device (5) that at least one is used to lock locking pin (4) is housed on the every L type connecting rod (2); The universal connecting rod of described T type (3) comprises longitudinal screw (6) and horizontal Connection Block (7), described longitudinal screw (6) is contained on the arc stator (1), the middle part of described horizontal Connection Block (7) is provided with rotation ball seat (8), in the rotation ball seat (8) screw (9) is arranged, the outside of described rotation ball seat (8) is provided with screw shell (10), the upper end of screw shell (10) extends internally so that screw (9) is stuck in the screw shell (10), described screw (9) fixes with an end of longitudinal screw (6), and the bottom of described rotation ball seat (8) is provided with the internal thread (48) that is used for fixing screw (9); At least two second purl devices (11) that are used to lock locking pin (4) are housed on the described horizontal Connection Block (7), and the described first purl device (5) is identical with the structure of the second purl device (11).
2, combination type articular fracture external fixator according to claim 1 is characterized in that: the fixing hole (12) that has the some L of being used for fixing type connecting rods (2) and the universal connecting rod of T type (3) on the described arc stator (1).
3, combination type articular fracture external fixator according to claim 2, it is characterized in that: described L type connecting rod (2) comprises Connection Block (13) and connection tube (14), connection tube (14) lower end is threaded with Connection Block (13), the described first purl device (5) is contained on the connection tube (14), have first chute (15) on the Connection Block (13), Connection Block (13) is located to fix by bolt (16) and arc stator (1) at first chute (15).
4, according to each described combination type articular fracture external fixator of claim 1-3, it is characterized in that: be with U-shape lock spare (17) and fine-tuning nut (18) on the described longitudinal screw (6), described fine-tuning nut (18) is positioned at the U-shape lock groove (19) of U-shape lock spare (17), described longitudinal screw (6) is by nut (20) and U-shape lock spare (17) locking, described U-shape lock spare (17) is provided with screw (21), and U-shape lock spare (17) is fixed on the arc stator (1) by bolt (22).
5, combination type articular fracture external fixator according to claim 4, it is characterized in that: the described first purl device (5) is a column type, have the first purl groove (23) on it, the first purl device (5) is gone up a side at the first purl groove (23) and is bolted with first double-screw bolt (27) that is used for locking pin (4) is locked in the first purl groove (23), opposite side is provided with second double-screw bolt (28), be with first contiguous block (29) and second contiguous block (30) on second double-screw bolt (28), be respectively equipped with symmetric semicircle column type breach (31 on first contiguous block (29) and second contiguous block (30), 32), the first purl device (5) is by second double-screw bolt (28), first contiguous block (29), second contiguous block (30) and nut (33) fix with connection tube (14); The described second purl device (11) is a column type, have the second purl groove (34) on it, the second purl device (11) is gone up a side at the second purl groove (34) and is bolted with the 3rd double-screw bolt (37) that is used for locking pin (4) is locked in the second purl groove (34), opposite side is provided with the 4th double-screw bolt (38), be arranged with two second chutes (39) on the described horizontal Connection Block (7), the described second purl device (11) is fixed on second chute (39) by the 4th double-screw bolt (36) and nut (40) and locates.
6, combination type articular fracture external fixator according to claim 5, it is characterized in that: the excircle of described fine-tuning nut (18) is provided with hole (41).
7, combination type articular fracture external fixator according to claim 6 is characterized in that: described arc stator (1) is semi-ring type or full-annular type; Semi-ring type stator comprises the union joint (42) at fixing sheet body (43) and two ends thereof, and the thickness of union joint (42) is half of thickness of fixing sheet body (43), has screw (44) on the union joint (42); Described full-annular type stator is a single piece or is assembled by two semi-ring type stators.
8, combination type articular fracture external fixator according to claim 7, it is characterized in that: described locking pin (4) has needle body (45), the front end face (46) of needle body (45) is provided with the portion of thrusting (47), the described portion (47) of thrusting is pyramid type, thrusts the diameter of the maximum gauge of portion (47) less than the front end face (46) of needle body (45).
9, combination type articular fracture external fixator according to claim 8 is characterized in that: described fixing hole (12) is circle or long trough.
10, combination type articular fracture external fixator according to claim 9 is characterized in that: described first chute (15), second chute (39) are long trough, and described connection tube (14) is a hollow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201245129U CN201316306Y (en) | 2008-12-19 | 2008-12-19 | Combined type external fixation device for articular fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201245129U CN201316306Y (en) | 2008-12-19 | 2008-12-19 | Combined type external fixation device for articular fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201316306Y true CN201316306Y (en) | 2009-09-30 |
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ID=41195079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201245129U Expired - Fee Related CN201316306Y (en) | 2008-12-19 | 2008-12-19 | Combined type external fixation device for articular fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201316306Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176744A (en) * | 2021-11-04 | 2022-03-15 | 金昌� | Universal locking needle quick fracture external fixator |
-
2008
- 2008-12-19 CN CNU2008201245129U patent/CN201316306Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176744A (en) * | 2021-11-04 | 2022-03-15 | 金昌� | Universal locking needle quick fracture external fixator |
| CN114176744B (en) * | 2021-11-04 | 2024-01-16 | 金昌� | Universal lock needle quick fracture external fixator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20131219 |