CN2768690Y - Bridge combined fracture internal fixing device - Google Patents
Bridge combined fracture internal fixing device Download PDFInfo
- Publication number
- CN2768690Y CN2768690Y CN 200520022267 CN200520022267U CN2768690Y CN 2768690 Y CN2768690 Y CN 2768690Y CN 200520022267 CN200520022267 CN 200520022267 CN 200520022267 U CN200520022267 U CN 200520022267U CN 2768690 Y CN2768690 Y CN 2768690Y
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- screw
- fixed block
- pitman
- hole
- thread
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Abstract
The utility model discloses a bridge combined fracture internal fixing device which mainly comprises fixing block (1), connecting bars (2), fixing screws (3) and locking screws (9), wherein connecting bar holes (4) which are parallel to the main plane of the fixing block are arranged in the fixing block and form a sliding fit with the connecting bars; screw holes (5) are arranged to be vertical to the main plane of the fixing block, and the connecting bar holes are locally crossed with the screw holes; the fixing screws or the locking screws (9) are matched with the screw holes, and conical caps of the screws are tightly pressed on the connecting bars. The utility model has the characteristics of simple structure, convenient operation, favorable resetting and fixing effects on bone fractures, few complicating diseases and wide indication range.
Description
Technical field
This utility model belongs to orthopaedics fixed apparatus technical field, is specifically related to a kind of bridge joining composite bone fracture internal fixing device that is suitable under the miscellaneous fracture state.
Background technology
At present domestic and international orthopaedics internal fixation implant is still based on steel plate, intramedullary pin series, along with updating of these two kinds of serial fixtures with perfect, existing various straight types, pressing type and the anatomical plate researched and developed, various self-lockings and interlocking type intramedullary pin, various external fixers and memorial alloy series fixture, and advanced " A0 " Liss steel plate etc.In the face of of a great variety, specification, complex-shaped implant and supporting training equipment often bring trouble in the selection to clinical operation, deviation in the selection not only causes suffering to the patient, even the final effect of influence operation, severe patient may cause the failure of performing the operation, and causes medical tangle.With regard to the operation operation, the intramedullary pin operation needs to expand marrow, interlocking, more need skilled operating technology, in case interlocking is inaccurate in the art, operation will be difficult to carry out, and the steel plate series operation needs open reduction to fix, and need peel off periosteum, even the direct compression fractures of steel plate position, have a strong impact on the osteogenesis environment.In addition, also there is the problem of stress shielding and stress concentration jointly in steel plate intramedullary pin series; Though the operation of external fixator series has good randomness, often usually can not be as the termination fixture because of postoperative infection.The design people is at the deficiencies in the prior art, treatment theory based on Wicresoft and biological internal fixation, designed at the bridge joining composite bone fracture internal fixing device that integrates steel plate, intramedullary pin and exterior fixation bracket fixture advantage aspect structure, the operating characteristics, obtained good effect.
The utility model content
1, utility model purpose
It is a kind of simple in structure that the purpose of this utility model is to provide, and uses operating aspect, and biomechanical property is stable, and indication is bridge joining composite bone fracture internal fixing device widely.
2, technical scheme
The purpose of this utility model is achieved in that and comprises fixed block, pitman, hold-down screw and lock screw composition.Fixed block inside is provided with the pitman hole that is parallel to the fixed block principal plane, is slidingly matched with pitman; Be provided with screw hole perpendicular to the fixed block principal plane, the pitman hole intersects with screw hole is local; Hold-down screw or lock screw cooperate with screw hole, and press on pitman the awl medicated cap one or both sides of hold-down screw and lock screw.
3, beneficial effect
Because this utility model adopts the internal fixation structural models, has overcome the deficiencies in the prior art, has improved the biomechanics characteristic of fixture, has reduced the generation of postoperative complication, has enlarged the indication scope, has improved the rehabilitation efficacy of fracture patient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment this utility model is further described, but this utility model is not limited to shown in the accompanying drawing.
Fig. 1 is this utility model list rod single hole fixed block front view;
Fig. 2 is the profile of Fig. 1;
Fig. 3 is this utility model list rod single hole opening fixed block front view;
Fig. 4 is the profile of Fig. 3;
Fig. 5 is this utility model list rod diplopore fixed block front view;
Fig. 6 is the profile of Fig. 5;
Fig. 7 looks half sectional view for this utility model list rod single hole end end fixed block master;
Fig. 8 is the profile of Fig. 7;
Fig. 9 is this utility model double stick single hole fixed block front view;
Figure 10 is the profile of Fig. 9;
Figure 11 is the profile of Fig. 9, between the two pitman holes connectivity slot is arranged;
Figure 12 this utility model double stick diplopore fixed block front view;
Figure 13 is the profile of Figure 12;
Figure 14 is the profile of Figure 12, between the two pitman holes connectivity slot is arranged;
Figure 15 is this utility model double stick single hole symmetry fixed block front view;
The profile of Figure 15 of Figure 16;
Figure 17 is the profile of Figure 15, between the two pitman holes connectivity slot is arranged;
Figure 18 is this utility model double stick single hole biasing fixed block front view;
Figure 19 is the profile of Figure 18;
Figure 20 is the profile of Figure 18, between the two pitman holes connectivity slot is arranged;
Figure 21 is this utility model double stick diplopore biasing fixed block front view;
Figure 22 is the profile of Figure 21;
Figure 23 is the profile of Figure 21, between the two pitman holes connectivity slot is arranged;
Figure 24 is the two angle holes of this utility model double stick fixed block front views;
Figure 25 is that the AA of Figure 24 is to view;
Figure 26 is that the BB of Figure 24 is to view;
Figure 27 is this utility model double stick single hole end end fixed block cutaway view;
Figure 28 looks half sectional view for the master of Figure 27;
Figure 29 is this utility model lock screw front view;
Figure 30 is the vertical view of Figure 29;
Figure 31 partly cuts open front view for this utility model single thread hold-down screw;
Figure 32 partly cuts open front view for the two threaded fastener screw of this utility model;
Figure 33 is the straight shape pitman front view of the single-ended head of this utility model;
Figure 34 is the straight shape pitman of a this utility model both-end head front view;
Figure 35 is the straight shape pitman of this utility model single-ended head " U " tee section view;
Figure 36 is the right view of figure;
Figure 37 is this utility model " U " shape pitman front view;
Figure 38 is single excellent fixed block working state schematic representation;
Figure 39 is a double stick fixed block working state schematic representation;
Figure 40 is single excellent opening fixed block working state schematic representation;
Figure 41 is a double stick connectivity slot fixed block working state schematic representation;
Figure 42 is single rod combination steady job view;
Figure 43 is the vertical sketch map of another combination stationary state of single rod;
Figure 44 is double stick combination steady job view;
Figure 45 is the left view of Figure 44;
Figure 46 makes up the vertical sketch map of stationary state for both sides;
Figure 47 is " U " shape pitman Mixed Stationary working state schematic representation;
Figure 48 is another working state schematic representation of " U " shape pitman Mixed Stationary;
Figure 49 is a fixed angle piece Mixed Stationary working state schematic representation.
The specific embodiment
As Figure 38-shown in Figure 49, this utility model mainly comprises fixed block 1, pitman 2, hold-down screw 3 and lock screw 4.Fixed block 1 inside is provided with the pitman hole 4 that is parallel to the fixed block principal plane, is slidingly matched with pitman 2; Be provided with screw hole 5 perpendicular to the fixed block principal plane, pitman hole 4 and 5 local intersections of screw hole; Hold-down screw 3 or lock screw 9 cooperate with screw hole 5, and press on pitman 2 the awl medicated cap one or both sides of hold-down screw 3 and lock screw 9.
Described fixed block 1 is provided with 1-2 pitman hole 4,1-2 screw hole 5, and the screw hole 5 top conical surfaces and the screw cap conical surface adapt, and lower thread and hold-down screw 3 top screw threads, lock screw 9 screw threads adapt; Screw hole 5 axis become 30-90 ° of angle with the fixed block principal plane.
Described fixed block 1 is parallel to principal plane and is provided with screw hole 5 open slot 6 that communicates; Or be communicated with the connectivity slot 7 of two screw holes 5.Described fixed block 1 is provided with 1-2 auxiliary fixing hole 8, setovers or is symmetricly set in screw hole 5 one or both sides.
Described pitman 2 is straight shape rod or " U " shape rod or " U " shape jaw-prop, and excellent body cross section is cylindrical, and the one or both ends head is provided with outer-hexagonal shape application of force termination.
One end face of described straight shape pitman 2 can be " U " shape, and promptly excellent body one side is provided with " U " shape groove.
Described hold-down screw 3 is single thread screw or dual threaded screw.The threads engaged of screw thread and screw hole 5 on the dual threaded screw, following screw thread is a tapping screw thread, the 2-3 that following thread pitch is last thread pitch is doubly; The single thread screw is only set portion's tapping screw thread.
Described lock screw 9 head of a nail ends are provided with interior hex slot 10, the threads engaged of nail bar portion's screw thread and screw hole 5.
Fig. 1, Fig. 2 show single excellent single hole fixed block, are provided with 4, one screw holes 5 in a pitman hole, and screw hole 5 tops are provided with the conical surface with the screw cap taper fit, and the bottom is provided with and hold-down screw 3 top screw threads, the screw thread that lock screw 9 matches.
Fig. 3, Fig. 4 show single excellent single hole opening fixed block, be that with single excellent single hole fixed block difference fixed block is provided with open slot 6 perpendicular to screw hole 5, open slot 6 helps more effectively locking pitman after screw screws between threaded portion and conical surface part.
Fig. 5, Fig. 6 show single excellent diplopore fixed block, are provided with 4, two screw holes 5 in a pitman hole.
Fig. 7, Fig. 8 show double stick diplopore fixed block, are provided with 4, two screw holes 5 in two pitman holes.
Fig. 9, Figure 10, Figure 11 show double stick single hole fixed block, are provided with 4, one screw holes 5 in two pitman holes.Figure 11 has connectivity slot 7 as a kind of embodiment between two pitman holes 4.
Figure 12, Figure 13, Figure 14 show double stick diplopore fixed block, are provided with 4, two screw holes 5 in two pitman holes.Figure 14 has connectivity slot 7 as a kind of embodiment between two pitman holes 4.
Figure 15, Figure 16, Figure 17 show double stick single hole symmetry fixed block, are provided with 4, one screw holes 5 in two pitman holes, are symmetrical arranged two auxiliary fixing holes 8.Figure 17 has connectivity slot 7 as a kind of embodiment between two pitman holes 4.
Figure 18, Figure 19, Figure 20 show double stick single hole biasing fixed block, are provided with 4, one screw holes 5 in two pitman holes, and biasing is provided with an auxiliary fixing hole 8.Figure 20 has connectivity slot 7 as a kind of embodiment between two pitman holes 4.
Figure 21, Figure 22, Figure 23 show double stick diplopore biasing fixed block, are provided with 4, two screw holes 5 in two pitman holes, and biasing is provided with two auxiliary fixing holes 8.Figure 23 has connectivity slot 7 as a kind of embodiment between two pitman holes 4.
Figure 24, Figure 25, Figure 26 show the two angle holes of double stick fixed block, are provided with 4, two the angle screw holes 5 in two pitman holes, and screw hole 5 axis become 30-90 ° of angle with the fixed block principal plane.
Figure 27, Figure 28 show double stick single hole end end fixed block, and being provided with 5, two pitman holes of 4, one screw holes, two pitman holes 4 is the blind hole of an end opening.
Figure 29, Figure 30 show this utility model lock screw 9, and the shape of itself and screw hole 5 adapts.The nut top is provided with interior hex slot 10, to match with force application means.
Figure 31 shows this utility model single thread hold-down screw, is suitable for the fixing of cortical bone and spongy bone.The screw that is used for spongy bone is used for the pitch of the screw of cortical bone and wants big.
Figure 32 shows the two threaded fastener screw of this utility model, and the front end screw thread is suitable for the fixing of cortical bone and spongy bone, the threads engaged of rear end screw thread and fixed block screw hole 5.
Figure 33 shows the straight shape pitman of the single-ended head of this utility model, and excellent body cross section is cylindrical, and cross section, a termination is an outer-hexagonal shape, to cooperate with force application means.
Figure 34 shows the straight shape pitman of this utility model both-end head, and promptly excellent body cross section is cylindrical, and the two ends cross section is outer-hexagonal shape, to cooperate with force application means.
Figure 35, Figure 36 show the straight shape pitman of this utility model single-ended head " U " tee section, and excellent body cross section is cylindrical, and cross section, a termination is an outer-hexagonal shape, to cooperate with force application means; Other end cross section is " U " shape, and promptly excellent body one side is provided with " U " shape groove, and tapered.
Figure 37 shows this utility model " U " shape pitman, and excellent body cross section is cylindrical, and integral body is " U " shape, and two arms match with fixed block respectively or jointly.
Figure 38-Figure 49 has illustrated work process of the present utility model.
Figure 38 shows single excellent fixed block duty.As embodiment, it has used dual threaded screw to fix, and the lower end screw thread passes medullary cavity 12 and is fixed on the bone 11, upper end screw thread and screw hole 5 tight fits, screw cap one side is pressed on pitman 2, thereby reaches fixed block 1 and bone fixation, pitman and fixed block 1 fixed purpose; Figure 39 shows double stick fixed block duty, and duty is identical with single excellent fixed block fixed form, and different is that press respectively on two pitmans 2 the screw cap both sides; Figure 40 shows single excellent opening fixed block duty, because the existence of open slot under the combined effect of hold-down screw 3 and screw hole 5, has been strengthened the fixed effect between fixed block 1 and the pitman 2; Figure 41 shows double stick opening fixed block duty; Figure 42, Figure 43 show single rod combination steady job state, and this two embodiment has adopted single excellent single hole fixed block, single excellent diplopore fixed block, single excellent single hole end end fixed block and single-ended pitman etc. respectively; Figure 44, Figure 45 show double stick combination steady job state, and this embodiment has adopted double stick single hole end end fixed block, double stick single hole biasing fixed block, double stick diplopore biasing fixed block, double stick diplopore fixed block; Figure 46 shows double stick combination steady job state, and this embodiment has adopted double stick single hole end end fixed block, double stick single hole biasing fixed block, the biasing of double stick diplopore fixed block, double stick diplopore fixed block and lock screw 9; Figure 47 shows " U " shape pitman Mixed Stationary duty, and this embodiment has adopted double stick diplopore fixed block, double stick single hole fixed block, double stick single hole biasing fixed block, single excellent single hole fixed block, single excellent diplopore fixed block; Figure 48 shows the another kind of duty of " U " shape pitman Mixed Stationary, the opening-like attitude of " U " shape pitman, to adapt to the shape of bone, this embodiment has adopted double stick diplopore fixed block, double stick single hole fixed block, single excellent diplopore biasing fixed block, single excellent single hole fixed block; Figure 49 shows the duty of utilizing fixed angle piece and other version fixed block Mixed Stationary, and this embodiment has adopted double stick diplopore fixed block, double stick single hole fixed block, the two angle holes of double stick fixed block.
Operation principle of the present utility model and characteristics:
This utility model is according to the Mechanics of Machinery principle, make full use of the intrinsic mechanical rigid of fixed block, pitman, hold-down screw and lock screw, and structure, length, combination of angles freely each other, form the stiff assembly fixing architecture, the fractured bones block reset is fixed into former physiology overall structure state, overcome improper stress that conventional fixed utensil itself produces and to the adverse consequences that pressure causes of periosteum, improved reset effect, enlarge the indication scope, reduced the generation of complication.
Claims (8)
1, a kind of bridge joining composite bone fracture internal fixing device, mainly comprise fixed block (1), pitman (2), hold-down screw (3) and lock screw (9), it is characterized in that: fixed block (1) inside is provided with the pitman hole (4) that is parallel to the fixed block principal plane, is slidingly matched with pitman (2); Be provided with screw hole (5) perpendicular to the fixed block principal plane, pitman hole (4) intersect with screw hole (5) is local; Hold-down screw (3) or lock screw (9) cooperate with screw hole (5), and press on pitman (2) the awl medicated cap one or both sides of hold-down screw (3) and lock screw (9).
2, bridge joining composite bone fracture internal fixing device as claimed in claim 1, it is characterized in that: described fixed block (1) is provided with 1-2 pitman hole (4), 1-2 screw hole (5), screw hole (5) the top conical surface and the screw cap conical surface adapt, and the screw thread of screw thread, lock screw (9) adapts on lower thread and the hold-down screw (3); Screw hole (5) axis becomes 30-90 ° of angle with fixed block (1) principal plane.
3, bridge joining composite bone fracture internal fixing device as claimed in claim 1 or 2 is characterized in that: described fixed block (1) is parallel to principal plane and is provided with the open slot (6) that communicates with screw hole (5); Or be communicated with the connectivity slot (7) of two screw holes (5).
4, bridge joining composite bone fracture internal fixing device as claimed in claim 1 or 2 is characterized in that: described fixed block (1) is provided with 1-2 auxiliary fixing hole (8), setovers or is symmetricly set in screw hole (5) one or both sides.
5, bridge joining composite bone fracture internal fixing device as claimed in claim 1 is characterized in that: described pitman (2) is straight shape rod or " U " shape rod or " U " shape jaw-prop, and excellent body cross section is cylindrical, and the one or both ends head is an outer-hexagonal shape.
6, as claim 1 or 5 described bridge joining composite bone fracture internal fixing devices, it is characterized in that: described pitman (2) is an end face " U " shape of straight shape rod, and promptly excellent body one side is provided with " U " shape groove.
7, bridge joining composite bone fracture internal fixing device as claimed in claim 1 is characterized in that: described hold-down screw (3) is single thread screw or dual threaded screw; The threads engaged of the last screw thread of dual threaded screw and screw hole (5), following screw thread is a tapping screw thread, the 2-3 that following thread pitch is last thread pitch is doubly; The single thread screw is only set the tapping screw thread of portion.
8, bridge joining composite bone fracture internal fixing device as claimed in claim 1 is characterized in that: described lock screw (9) head of a nail end is provided with interior hex slot (10), the threads engaged of nail bar portion's screw thread and screw hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022267 CN2768690Y (en) | 2005-02-07 | 2005-02-07 | Bridge combined fracture internal fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022267 CN2768690Y (en) | 2005-02-07 | 2005-02-07 | Bridge combined fracture internal fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768690Y true CN2768690Y (en) | 2006-04-05 |
Family
ID=36689770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022267 Expired - Lifetime CN2768690Y (en) | 2005-02-07 | 2005-02-07 | Bridge combined fracture internal fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768690Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100496424C (en) * | 2005-02-07 | 2009-06-10 | 熊鹰 | Bridge joining composite bone fracture internal fixing device |
-
2005
- 2005-02-07 CN CN 200520022267 patent/CN2768690Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100496424C (en) * | 2005-02-07 | 2009-06-10 | 熊鹰 | Bridge joining composite bone fracture internal fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090610 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |