CN201104912Y - Three-dimensional regulate and control resetting-fixing device for bone fracture - Google Patents
Three-dimensional regulate and control resetting-fixing device for bone fracture Download PDFInfo
- Publication number
- CN201104912Y CN201104912Y CNU2007201294440U CN200720129444U CN201104912Y CN 201104912 Y CN201104912 Y CN 201104912Y CN U2007201294440 U CNU2007201294440 U CN U2007201294440U CN 200720129444 U CN200720129444 U CN 200720129444U CN 201104912 Y CN201104912 Y CN 201104912Y
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- frame
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- screw
- needle stand
- cradle
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Abstract
The utility model discloses a three-dimensional adjustment fracture reposition fixer, belonging to medical instrument field, which comprises a main frame and two subframes. The fracture reposition fixer is characterized in that the main frame comprises a frame, two needle seats and an adjusting screw; the cylindrical needle seats are arranged on the two long sides of the frame; on the short sides of the frame, the adjusting screw with a turncap is movably connected with the needle seat; a slot-shaped spicular hole is arranged at the central section of the needle seat; the structure of one subframe is equivalent to half of the main frame, while a lathy frame similar to the long sides of the subframe is arranged on the other subframe; two special shaped needle seats on the long holes of the lathy frame are arranged on two sides of the lathy frame. The fixer can narrow the distance of the needles on the internal circumference, so the fixer can be used for the fracture of the part close to joint and multiple segmental fracture of the same bone. The external adjustment and reposition can be performed for the displacement in different direction at the fracture part. The three-dimensional adjustment fracture reposition fixer has the advantages of compact size, light weight, convenient and flexible operation.
Description
One, technical field:
This utility model belongs to medical instruments field, particularly a kind of wound external fixator of human limb long bone open fracture.
Two, background technology;
Fracture external fixator at present commercially available and development voluntarily has tens of kinds more than, but omnifarious external fixator is nothing more than three kinds of structural modelss, i.e. this (Orthofix) formula external fixator of the diligent Fick of Australia, Huffman (Hoffmann) formula external fixator and Yi Lizhaluofu (Ilizarof) formula external fixator.These holders respectively have its pluses and minuses, this formula external fixator of the diligent Fick of Australia is a single arm type, promptly at holder of one-sided installation of the backbone who is fixed, in order to reach strong fixed purpose, its used fixed bone spicule diameter is not less than 6 millimeters, because the spicule of fracture line upper and lower side is too thick, fracture end does not have the stimulation of " compressive stress ", can cause the slow concrescence or the disunion of fracturing.This is generally acknowledged by orthopaedics both domestic and external educational circles.Huffman formula external fixator simple structure is operated more conveniently, but it does not possess the adjusting reset function to the displacement of fracture end after being installed on the knochenbruch, only plays fixation.The existing adjusting reset function of Erie's Zha Luofushi external fixator has fixation again.But its volume is too huge, and structure is too complicated, operates too loaded down with trivial details.Install this external fixator patient's life is brought very big inconvenience.
Three, summary of the invention:
The purpose of this utility model provides a kind of three regulation and control fracture reduction fixators, and it can or pressurize to the traction of limb fracture position, and is more convenient flexibly to the fixed operation in outside, can implement three-dimensional regulation and control to the fracture end of displacement and reset.Its technical scheme is: three-dimensional regulation and control fracture reduction fixator is made up of body frame and two attached frames.(1) body frame comprises framework, needle stand and adjusting screw(rod).Framework is a rectangle, has corresponding two segment length holes on two long margin frame, in the long margin frame inboard needle stand slideway is arranged.Two cylindricality needle stands are housed on every segment length hole, on two minor face frames of framework screw are arranged, have the bolt of adjusting to pass through on one of them screw, another screw is the subframe connecting hole.Needle stand is column, and the chute that cooperates with long margin frame needle stand slideway is arranged on the cylinder at two ends, and there is strip spicule hole at the needle stand middle part, on the needle stand centrage screw is arranged, and two ends has the axial bolts of being passed by the frame slotted hole, on its screw rod hold-down nut is arranged.The tail end of adjusting screw(rod) has turncap, and screw rod is passed by the screw on the minor face frame and flexibly connects with first needle stand.The structure of (two) subframes is equivalent to body frame half, and two needle stands are arranged on its long margin frame, and the adjusting screw(rod) of band turncap is arranged on a minor face frame, is fixed with the body frame connecting screw rod on another minor face frame.Another subframe has similar in appearance to the cradle of a long margin frame of last subframe, two special-shaped needle stands are installed on the slotted hole of cradle, cradle one end has the body frame connecting screw rod, there is the spicule hole at special-shaped needle stand middle part, there is the adjusting bolt that leads to the spicule hole at two ends, on the screw rod of one of them bolt double nut is arranged, special-shaped needle stand is fixed on the cradle by double nut.Two special-shaped needle stands are contained in the both sides of cradle.
Wearing spicule with three-dimensional regulation and control fracture reduction fixator on knochenbruch has bigger scope of compromise, and enclose the needle gage of pin in can dwindling, thereby can be used for juxta-articular bone fracture, and better reduction, also can be used for a bone several sections of fracture.All can carry out external adjusting to front and back displacement, side displacement and the swing offset of fracture resets.And volume is little, in light weight, it is flexible to operation to use.
Four, description of drawings:
Fig. 1 is three-dimensional regulation and control fracture reduction fixator body frame structural representation.Fig. 2 is three-dimensional regulation and control fracture reduction fixator long margin frame sectional schematic diagram.Fig. 3 is the structural representation of a subframe.Fig. 4 is the structural representation of another subframe.
Five, the specific embodiment:
Three-dimensional regulation and control fracture reduction fixator comprises a body frame and two subframes.Body frame comprises framework 8, needle stand 6 and adjusting screw(rod) 2.Framework 8 is a rectangle, has two sections corresponding slotted holes 3 on two long margin frame, and there is needle stand slideway 10 the long margin frame inboard.Two cylindrical needle stands are housed on every section corresponding slotted hole.At two minor face frame middle parts of framework screw is arranged, have adjusting screw(rod) 2 to pass on one of them screw, another screw is a subframe connecting hole 9.The chute that cooperates with long margin frame needle stand slideway is arranged on the cylinder at cylindrical needle stand two ends, make needle stand parallel sliding on slideway.On the centrage of needle stand screw is arranged, two ends has the adjusting bolt 4 that is passed by the frame slotted hole, and hold-down nut 5 is arranged on its screw rod, needle stand can be fixed on certain position of frame slotted hole 3 by hold-down nut, and therefore threading a needle on knochenbruch a little has bigger degree of freedom.It is fixing that the needle stand middle part has strip spicule hole 7, spicule to pass from the spicule hole by needle stand two ends adjusting bolt 4.Change and regulate the bolt screw-in depth, can make the spicule rotational displacement, thereby reset at the external knochenbruch that makes, adjusting screw(rod) 2 tail ends have turncap 1, adjusting screw(rod) flexibly connects the position that the rotation turncap can be regulated needle stand with first needle stand after passing the frame hole, make holder when mounted needle stand adapt to the position of spicule easily, after installation, can also drive the spicule that penetrates needle stand fracture end is carried out drawing-off or pressurization, can accurately measure by pitch and swing angle only needs to use separately body frame to get final product to the most fracture of the length of knochenbruch drawing-off, then needs body frame and subframe [1] or subframe [2] are used in combination when running into a bone several sections of fracture or joint syntripsis.The structure of subframe [1] is equivalent to body frame half, and two needle stands 6 are arranged on its long margin frame, and the adjusting screw(rod) 2 of band turncap is arranged on a minor face frame, is fixed with body frame connecting screw rod 11 on another minor face frame.Subframe [2] has a cradle 12 similar in appearance to [1] long margin frame of subframe, and cradle one end has body frame connecting screw rod 11.Two special-shaped needle stands 13 are installed on the slotted hole of cradle, and there is spicule circular hole 14 at special-shaped needle stand middle part, and there is the adjusting bolt at two ends.On the screw rod of one of them adjusting bolt double nut is arranged, special-shaped needle stand is fixed on the cradle by double nut, both sides body frame and subframe [2] that two special-shaped needle stands are contained in cradle connect into combined bay, make two spicules on the special-shaped needle stand of subframe [2] and the spicule on the body frame needle stand form stable triangle and fix.Body frame and subframe connect into combined bay can also be simultaneously exerts pressure a section an of bone, and another section applies pulling force.From medically, near two spicules of fracture line upper and lower in enclose pin, in to enclose needle gage good more from the reset effect of more little fracture.On peripheral pin, peripheral needle gage is from big more fixing stable more away from two pins of fracture line.Enclose needle gage in the three-dimensional regulation and control fracture reduction fixator and can be set in below 5 centimetres, thereby can be used for the fracture of close joint part, and better reduction.Three-dimensional regulation and control fracture reduction fixator is double-arm fixing, and promptly spicule passes backbone and limbs, by the holder connection of both sides.This structure can make the spicule diameter less, is a kind of flexible fastening, can not form " virial blocks ".Fracture end still can be subjected to the stimulation of compressive stress during fixing, and helps union of fracture.Three-dimensional regulation and control fracture reduction fixator can utilize the anglec of rotation calculate draft length of adjusting screw(rod) turncap, so can utilize progressively drawing-off effect to realize that bone prolongs, is used for the treatment of two leg length discrepancys.
Claims (4)
1. three-dimensional regulation and control fracture reduction fixator is made up of body frame and subframe, and it is characterized in that: (one) body frame comprises framework (8), needle stand (6) and adjusting screw(rod) (4); Framework (8) is a rectangle, on two long margin frame, have corresponding two segment length holes (3), needle stand slideway (10) is arranged in the long margin frame inboard, two cylindricality needle stands (6) are housed on every segment length hole, at two minor face frame middle parts of framework screw is arranged, adjusting screw(rod) (2) is arranged on one of them screw, and another screw is subframe connecting hole (9); Needle stand is cylindricality, and the chute that cooperates with frame needle stand slideway is arranged on the cylinder at two ends, on the centrage of needle stand screw is arranged, and two ends has the axial bolts (4) of being passed by the frame slotted hole, and hold-down nut (5) is arranged on its screw rod, and there is strip spicule hole (7) at the needle stand middle part; The structure of (two) subframes is equivalent to body frame half, and two needle stands (6) are arranged on its long margin frame, and the screw rod (2) of band turncap is arranged on a minor face frame, is fixed with body frame connecting screw rod (11) on another minor face frame; (3) another subframe has a cradle (12) similar in appearance to a long margin frame of last subframe, and two special-shaped needle stands (13) are installed on the slotted hole of cradle, and two special-shaped needle stands are installed in the both sides of cradle, and cradle one end has body frame connecting screw rod (11).
2. three-dimensional regulation and control fracture reduction fixator as claimed in claim 1, it is characterized in that: adjusting screw(rod) (2) tail end on the framework (8) has turncap (1), and screw rod is passed by the screw on the minor face frame and flexibly connects with first needle stand.
3. three-dimensional regulation and control fracture reduction fixator as claimed in claim 1, it is characterized in that: there is the adjusting bolt that leads to middle part spicule circular hole (14) at special-shaped needle stand (13) two ends on another subframe cradle (12), on the screw rod of one of them adjusting bolt double nut is arranged, the screw rod of regulating bolt passes cradle vast sky, and double nut is fixed on the cradle from the cradle both sides with bolt and special-shaped needle stand.
4. three-dimensional regulation and control fracture reduction fixator as claimed in claim 1, it is characterized in that: the body frame connecting bolt (11) on the subframe connecting hole (9) on the body frame and certain subframe is connected to become the composite bone fracture reduction fixture device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201294440U CN201104912Y (en) | 2007-08-08 | 2007-08-08 | Three-dimensional regulate and control resetting-fixing device for bone fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201294440U CN201104912Y (en) | 2007-08-08 | 2007-08-08 | Three-dimensional regulate and control resetting-fixing device for bone fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201104912Y true CN201104912Y (en) | 2008-08-27 |
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ID=39956691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201294440U Expired - Fee Related CN201104912Y (en) | 2007-08-08 | 2007-08-08 | Three-dimensional regulate and control resetting-fixing device for bone fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201104912Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344135A (en) * | 2016-11-01 | 2017-01-25 | 四川大学华西医院 | Movable bone traction device |
| CN112274231A (en) * | 2020-09-28 | 2021-01-29 | 杭州整形医院有限公司 | Chute type single-side double-needle multifunctional hand orthosis |
-
2007
- 2007-08-08 CN CNU2007201294440U patent/CN201104912Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344135A (en) * | 2016-11-01 | 2017-01-25 | 四川大学华西医院 | Movable bone traction device |
| CN112274231A (en) * | 2020-09-28 | 2021-01-29 | 杭州整形医院有限公司 | Chute type single-side double-needle multifunctional hand orthosis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080827 Termination date: 20100808 |