CN2383483Y - Hybrid bone external fixer - Google Patents
Hybrid bone external fixer Download PDFInfo
- Publication number
- CN2383483Y CN2383483Y CN 99214924 CN99214924U CN2383483Y CN 2383483 Y CN2383483 Y CN 2383483Y CN 99214924 CN99214924 CN 99214924 CN 99214924 U CN99214924 U CN 99214924U CN 2383483 Y CN2383483 Y CN 2383483Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- draw point
- pad
- bone external
- external fixator
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hybrid bone external fixer. The hybrid bone external fixer is composed of parts of a steel needle fixing clamp, a connecting rod fixing clamp, a connecting rod, a multi-frame connecting rod, a steel needle, etc. The hybrid bone external fixer can be used for treating fracture with different parts and property, and correcting the forms of a bone and a joint, etc. through different spatial structures. The hybrid bone external fixer overcomes the defects that the existing bone external fixer has low fixing intensity, poor rotary capacity, extremity injury, and weight loading; when walking, the motion of a fracture segment is easily caused, etc. The utility model provides a bone external fixer which has convenience, reliability, and stable performance for clinicians.
Description
This utility model relates to the bone external fixator, and characteristics are a kind of hybrid bone external fixators.
The bone external fixator is to wear hindering limb, is used for the treatment of fracture and the orthopedic orthopedic medical device of B﹠J.Fracture segment, several pieces are penetrated the draw point of fracture segment and each external connecting rod fuses with draw point fixation clamp and connecting rod fixation clamp, form a space frame structure.By means of the non-deformability of draw point, postoperative patient can bear a heavy burden or part is born a heavy burden to promote knitting and functional rehabilitation, can stablize each fracture segment again, and big relative displacement does not take place each other, satisfies clinical requirement.Therefore, in the structure of bone external fixator, the mechanical property of the linkage unit of draw point-connecting rod and connecting rod-connecting rod is most important, is to improve bone external fixator overall performance, and Secure Application improves the key of curative effect in clinical.
Existing various types of bone external fixator, Chinese utility model patent as the CN 2249065Y of on March 12nd, 1997 bulletin, the structures shape of used draw point fixation clamp and connecting rod fixation clamp (i.e. universal joint described in this patent) constant intensity lower, particularly very poor around the anti-rotation performance of connecting rod or draw point, do not reach the constant intensity of clinical requirement during use far away, when being subjected to the myotasis power of all directions hindering limb heavy burden and walking, draw point and connecting rod rotate or move in the direction of constant intensity weakness, cause fracture segment to move.External fixator has lost the effect of stable fracture section.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of hybrid bone external fixator is provided, raising is to the constant intensity of draw point and connecting rod, increase draw point and the anti-rotational intensity of connecting rod, tactical rule, manufacturing procedure is simple, reliable in quality, with low cost, meet clinical instructions for use.
This utility model is a kind of hybrid bone external fixator, according to clinical needs, constitutes different space structures by draw point fixation clamp, connecting rod fixation clamp, connecting rod, draw point etc.Implementation method below in conjunction with the description of drawings the purpose of this utility model.
Fig. 1 is draw point fixed folder structure figure of the present utility model.
Among the figure: 10. draw point fixation clamp, 101. trip bolts; 102. draw point base; 103. draw point pad; 104. support spring; 105. connecting rod pad; 106. connecting rod threaded base; 107. the V-type groove on the draw point base; 108. medical draw point; 109. connecting rod.
Fig. 2 is connecting rod fixed folder structure figure of the present utility model.
Among the figure: 20. connecting rod fixation clamps, 101. trip bolts; 201. connecting rod through hole base; 104. support spring; 105. connecting rod pad; 202. connecting rod threaded base.
Fig. 3 is the structure chart of draw point pad for 103 among Fig. 1.
Fig. 3 (a) is 103 to be the profile of draw point pad.
Fig. 3 (b) is 103 to be the vertical view of draw point pad.
Among the figure: 103. draw point pads, the V-type groove on the 301. draw point pads; 302. the long shape hole on the draw point pad; 303. the anti-skid design on the draw point pad.
Fig. 4 is the structure chart of connecting rod pad for 105 among Fig. 1.
Fig. 4 (a) is 105 to be the cutaway view of connecting rod pad.
Fig. 4 (b) is 105 to be the vertical view of connecting rod pad.
Among the figure: 105. connecting rod pads, the long shape hole on the 401. connecting rod pads; 402. the anti-skid design on the connecting rod pad.
Fig. 5 is a connecting rod of the present utility model.
Fig. 5 (a) is the straight-bar sketch map.
Fig. 5 (b) is four limit connecting rod sketch maps.
Fig. 5 (c) is five limit connecting rod sketch maps.
Among the figure: 30. straight-bars; 40. four limit connecting rods; 50. five limit connecting rods.
Fig. 6 is the user mode sketch map of a kind of hybrid bone external fixator that uses five limit connecting rods and constitute.
Among the figure: 10. draw point fixation clamp; 20. connecting rod fixation clamp; 30. straight-bar; 50. five limit connecting rods; 601. medical full pin; 602. medical spiral half pin; 603. straight-bar.(1) as shown in Figure 1, draw point fixation clamp (10) is a molectron, by the draw point base (102) that is used for fixing draw point, draw point pad (103), the connecting rod threaded base (106), the connecting rod pad (105) that are used for fixing connecting rod, trip bolt (101) formation that is placed on the support spring (104) between draw point pad and the connecting rod pad and said elements is connected as a single entity.By screwing trip bolt, give draw point (108) and the enough clamping forces of connecting rod (109), make the draw point fixation clamp form a fixed pivot, when draw point bears body weight and myotasis power, can not be moved or rotate at the junction point place, maintenance is relatively stable with connecting rod.As shown in Figure 3, the through hole on the draw point pad (103) is long shape hole (302), to make things convenient for the loading and unloading of draw point and connecting rod; Be processed with anti-skid design (303) on the draw point pad, improved the anti-axial spin intensity of draw point; Draw point stationary plane on the draw point pad adopts V-type groove (301), to make things convenient for the chucking of different-diameter draw point.As shown in Figure 1, the draw point stationary plane on the draw point base (102) also adopts V-type groove (107), to make things convenient for the chucking of different-diameter draw point.(2) as shown in Figure 2, the connecting rod fixation clamp is a molectron, by the connecting rod through hole that is used for fixing a connecting rod
Base (201), connecting rod pad (105), be used for fixing another connecting rod connecting rod threaded base (202),
Connecting rod pad (105), be placed on two between the connecting rod pad support spring (104) and with above-mentioned unit
The trip bolt that part is connected as a single entity (101) constitutes.By screwing trip bolt, give two cards that connecting rod is enough
Tight power makes their junction point form fixed pivot, and connecting rod is linked together stablely.As shown in Figure 4,
Through hole on the connecting rod pad (105) is long shape hole (401), making things convenient for the loading and unloading of connecting rod, and connecting rod
Be processed with anti-skid design (402) on the pad, improved the anti-axial spin intensity of connecting rod.(3) as shown in Figure 5, connecting rod is divided into straight-bar and four limit connecting rods and five limit connecting rods, adopts aluminum alloy materials.(4) in order to increase the anti-rotation performance of connecting rod, the connecting rod in this utility model has carried out the surface and has sandblasted and handle and table
The surface anode processing had both improved texture, more overcome in the operation process the reflective of metal connecting rod and be with to the doctor
The discomfort and the collimation error of coming.(5) as shown in Figure 6, be a kind of bone external fixator configuration that adopts above-mentioned parts to constitute, be applicable to the comminuted bone of lower limb
Folding etc.Adopt following steps to be assembled into this configuration:
The first step, the fracture far-end and near-end wear respectively put one piece of medical full pin as: 601 and screw thread half pin as: 602.
Second step, use several connecting rod fixation clamps that each connecting rod is coupled together, as: with connecting rod fixation clamp (20) straight-bar (30) and five limit connecting rods (50) are coupled together.
The 3rd step, use several draw point fixation clamps respectively straight-bar or five limit connecting rods to be coupled together with full pin or screw thread half pin, as: with draw point fixation clamp (10) straight-bar (30) and full pin (601) are coupled together, straight-bar (603) and screw thread half pin (602) are coupled together with another draw point fixation clamp.
By above step, fracture segment, full pin, screw thread half pin and each connecting rod are linked as a spatial stability structure, when patient's heavy burden or functional exercise, can guarantee the stable fixing of fracture segment, for suitable biomechanics environment has been created in union of fracture.
Fig. 6 only is a kind of bone external fixator configuration that adopts above-mentioned parts to constitute, and is applicable to lower limb comminuted fracture etc.In the reality, can constitute multiple different steric configuration to meet clinical needs according to the position and the character of fracture.
Claims (6)
1, a kind of hybrid bone external fixator is characterized in that: be made up of draw point fixation clamp, connecting rod fixation clamp, connecting rod, draw point etc.; Wherein,
(1) the draw point fixation clamp is a molectron, by the draw point base that is used for fixing draw point, draw point pad, the connecting rod threaded base, the connecting rod pad that are used for fixing connecting rod, the trip bolt formation that is placed on the support spring between draw point pad and the connecting rod pad and said elements is connected as a single entity;
(2) the connecting rod fixation clamp is a molectron, by the connecting rod through hole base, the connecting rod pad that are used for fixing a connecting rod, the connecting rod threaded base, the connecting rod pad that are used for fixing another connecting rod, be placed on two between the connecting rod pad support spring and the trip bolt that said elements is connected as a single entity constitute;
(3) draw point is medical full pin and screw thread half pin.
2, hybrid bone external fixator according to claim 1 is characterized in that: connecting rod is divided into straight-bar and four limit connecting rods and five limit connecting rods.
3, hybrid bone external fixator according to claim 1 is characterized in that: connecting rod adopts aluminum alloy materials.
4, hybrid bone external fixator according to claim 1, it is characterized in that: that at the draw point pad support spring that--between the connecting rod pad or connecting rod pad--placed between the connecting rod pad adopts the compression spring, its role is to make things convenient for the loading and unloading of draw point and connecting rod.
5, hybrid bone external fixator according to claim 1 is characterized in that: all having anti-skid design and through hole on the contact surface of draw point pad and connecting rod pad is long shape hole.
6, hybrid bone external fixator according to claim 1 is characterized in that: the stationary plane that is used for fixing draw point on draw point pad and the draw point base adopts the V-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214924 CN2383483Y (en) | 1999-07-06 | 1999-07-06 | Hybrid bone external fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214924 CN2383483Y (en) | 1999-07-06 | 1999-07-06 | Hybrid bone external fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2383483Y true CN2383483Y (en) | 2000-06-21 |
Family
ID=34007009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99214924 Expired - Fee Related CN2383483Y (en) | 1999-07-06 | 1999-07-06 | Hybrid bone external fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2383483Y (en) |
-
1999
- 1999-07-06 CN CN 99214924 patent/CN2383483Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Capital Medical University Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Capital Medical University Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |