CN201578350U - Inner fixing bracket for four-limb long bone fracture - Google Patents
Inner fixing bracket for four-limb long bone fracture Download PDFInfo
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- CN201578350U CN201578350U CN2009202119274U CN200920211927U CN201578350U CN 201578350 U CN201578350 U CN 201578350U CN 2009202119274 U CN2009202119274 U CN 2009202119274U CN 200920211927 U CN200920211927 U CN 200920211927U CN 201578350 U CN201578350 U CN 201578350U
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- screw
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- fixed support
- universal joint
- inner fixed
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Abstract
The utility model discloses an inner fixing bracket for four-limb long bone fracture which is characterized by comprising connecting bars, bolts, connectors and cardan joints; the bolts, the connectors and the cardan joints are arranged in set; at least two bolts are arranged; one end of each bolt is respectively into the cardan joint matched thereof; the cardan joint is arranged in the connector; the connecting bar and the connector are fixedly connected; the bolt and the connecting bar can be universally fixed by multi-shafts in a rotating way; and the connecting bar is a straight bar round bar or an arc round bar. The inner fixing bracket for four-limb long bone fracture arranges nails at the two sides of the fracture through indirect resetting, and provides a relatively stable inner environment needing for healing for the fracture end through the fixture of the connecting bar. The inner fixing bracket for four-limb long bone fracture can be adopted to cure four-limb fractures and has the advantages of simple and convenient resetting and fixing during an operation, and operation time shortening, thereby reducing blooding and lightening the suffer of a patient during the operation period. The inner fixing bracket for four-limb long bone fracture meets the biomechanics requirements of microinvasive fixing concept and fracture healing.
Description
Technical field
This utility model relates to a kind of technical field of medical instruments that belongs to, be specifically related to a kind of inner fixed support of fixing limbs long bone shaft fracture, it mainly acts on is the position of keeping after the reduction of the fracture, thereby makes it fix the interior environment that obtains healing, finally makes limbs recover to bear a heavy burden and the function of motion.
Background technology
Present existing extremity fracture holder mainly comprises internal fixation device and external fixator two big classes:
(1) bone external fixator: promptly come out as far back as 19 end of the centurys, effort and improvement innovation through have for many years just had breakthrough clinically until the seventies in 20th century.Its advantage is: (1) wound is little, both be convenient to install, also be convenient to remove; (2) be convenient to carry out Soft Tissue Treatment; (3) noiseless substantially to the part of fracturing, do not increase partial wound, help protecting blood fortune.(4) fixedly be convenient to adjust as required, for example transfer the flexible fastening in later stage to, or under unsatisfied situation, readjust and reset by early stage rigidly fixing.Loosening complication rate such as infection height that reaches of locking pin that causes but bone-pin interface mechanics situation worsens, the mechanical damage when mainly containing operation and the fibrous tissue at bone-pin interface form.
(2) internal fixation device divides intramedullary needle (nail) inner fixing device and pegboard systems two classes again:
The intramedullary needle internal fixation is used for long bone (as thigh, the upper arm, chi, shin, radius etc.) shaft fracture more.China's utility model patent 94246694.2 discloses a kind of intramedullary needle inner fixing device that the utility model name is called the intertrochanteric fracture of the femur inner fixer: penetrated a tubulose intramedullary needle in the intramedullary cavity of Fracture of femur, one inclined hole is arranged at the butt end bottom of its intramedullary needle, forcing screw is to be drilled in neck of femur by this inclined hole, have at least two sold inside the country screw holes at thin slightly end, sold inside the country screw is crossed the internal lock screw hole intramedullary needle is connected with femoral shaft, the butt end end of intramedullary needle is equipped with fastening backing-up screw, its major defect is: need open reduction, peel off buttocks muscles, nail is advanced in perforate, place guide pin, enlarge steps such as pulp cavity and placement screw, fundamental need is carried out under the monitoring of fluoroscopic machine, higher to operator doctor specification requirement, intraoperative blood loss also increases relatively.
China Patent No. is that 200720006929.0 utility model discloses a kind of pegboard systems that name is called two nail locking nail panel assemblies of treatment fracture of femoral neck, comprise fixing head, main nail, auxilliary nail, fixing head is to have the steel plate that is fit to human femur under loading near-end outside physiology curvature, the head end of steel plate is provided with the first nail hole that is matched with main nail, the tail end of steel plate is provided with the second nail hole that is matched with auxilliary nail, the centerline hole in the first nail hole and the plate body of steel plate constitute certain included angle, main nail is hollow pulling force lock screw, the front end interlocking is at femoral head, the rear end is locked on the steel plate, auxilliary nail is lock screw, and interlocking is between steel plate and femur.There is following defective in it: need open reduction, perhaps many nails are fixing, and dissection scope is wider, and bit drills bone number of times is more, and operating time is relatively just long.
For senile patient, present internal fixation device needs epidural anesthesia, intravertebral anesthesia even general anesthesia in addition, and this is for disease accompanied more elderly patient, and anesthetic risks may surpass the risk of the fixing operation of accepting to reset.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of easy and simple to handle, can carry out in local anesthesia, can reduce hemorrhage, as to alleviate patient suffering long bone of limbs and do the fracture inner fixed support, to overcome the above-mentioned defective that prior art exists.
The technical scheme of this utility model technical solution problem is as follows:
A kind of long bone of limbs is done the fracture inner fixed support, it is characterized in that, comprise connecting rod, screw, connector and universal joint, described screw, connector, the complete setting of universal joint, described screw has two at least, in the universal joint that an end places respectively with it matches of each screw, described universal joint is arranged in the connector, described connecting rod is fixedlyed connected with connector, can rotate universal fixing by multiaxis between described screw and the connecting rod, and described connecting rod is vertical bar round bar or arcuation round bar.
By above disclosed technical scheme as can be known, this utility model is fixed as fracture end by connecting rod a needed interior environment of metastable healing is provided by resetting at fracture two sides nail indirectly.And because utilization resets indirectly, do not relate to the broken ends of fractured bone, so operating time shortens, amount of bleeding reduces.The whole system routine is advanced four pieces of nails, has reduced operation wound, has simplified operating procedure.Use locking system between the nail bar, strong stable; This utility model is not simply external fixer to be moved in the body, but a kind of double brand-new design of having got locking pegboard systems and nail bar fixation principle, its existing locking system firmly, the easy of nail bar coupling system arranged again.Can under local anesthesia, implement, adopt this utility model carry out the extremity fracture treatment have in the art reset, fixing operation is easy, shorten operating time, thus reduce hemorrhage, alleviate advantage such as patients'perioperative misery, meet the fixedly biomechanics requirement of theory and union of fracture of Wicresoft.
Description of drawings
Fig. 1 does the fracture inner fixed support for this utility model long bone of limbs and faces structural representation.
Fig. 2 does fracture inner fixed support decomposition texture sketch map for this utility model long bone of limbs.
Fig. 3 does fracture inner fixed support fragmentary top TV structure sketch map for this utility model long bone of limbs.
Fig. 4 is that connector is with the structure chart on the direction of screw place.
Fig. 5 is the structure chart that connector is in the opposite direction gone up with screw.
Fig. 6 is two bar fixing rack structure sketch maps.
Fig. 7 is the another kind of fracture cradle syndeton of a this utility model sketch map.
Reference numeral is as follows:
1, connecting rod 2, screw 3, connector
4, universal joint 5, pad 6, nut
7, transiting rod 8, connection button 9, lock-screw
401, pawl connects portion 402, top connecting portion 301, joint connecting hole
302, lever attachment hole 303, locating hole 501, pad hole
201, screw head 10, fixed screw
The specific embodiment
Be described in further details below in conjunction with accompanying drawing with to this utility model.
As Fig. 1,2, shown in 3, this utility model long bone of limbs is done the fracture inner fixed support, comprise connecting rod 1, screw 2, connector 3 and universal joint 4, described screw 2, connector 3, universal joint 4 is that a composition cover is provided with, described screw 2 has two at least, one end of each screw 2 places respectively in the universal joint 3 that matches with it, described universal joint 3 is arranged in the connector 3, universal joint 4 by pad 5 and nut 6 tighten with connector 3 on, described connecting rod 1 is fixedlyed connected by lock-screw 9 with connector 3, can rotate universal fixing by multiaxis between described screw 2 and the connecting rod 1, described connecting rod 1 is vertical bar round bar or arcuation round bar.
As shown in Figure 2, the bottom of described universal joint 4 is that elastic claw meets portion 401, described elastic claw meets portion 401 and is the three-jaw structure, inside is hollow ball-shape, the screw head 201 that described screw 2 is connected with universal joint 4 be shaped as falcon shape interface, screw head 201 extend into elastic claw and connects in the portion 401, universal rotation.The top of universal joint 4 is top connecting portion 401, which is provided with screw thread, and its both sides are cut flat, and corresponding tie spacer 5 is provided with pad hole 501, and the top connecting portion 402 of universal joint extend in the pad hole 501, the hole that is rectangle, pad hole 501, four rounding of angle in hole.
As Fig. 4, shown in 5, described connector 3 is provided with the joint connecting hole 301 and the lever attachment hole 302 that is used to be connected connecting rod 1 that is used to connect universal joint 4, described joint connecting hole 301 is vertical mutually with the centrage of lever attachment hole 302, described joint connecting hole 301 is a circular hole in screw 2 one sides, in upper gasket one side is square opening, circular hole meets portion 401 with universal joint bottom elastic claw and matches, square opening matches with connecting portion 401 profiles on universal joint 4 tops, during installation, the top of universal joint is inserted from circular hole one side of joint connecting hole 301 bottoms of connector 3, get final product by nut screwing clamping loading onto pad.
Described screw 2 and connecting rod 1 can adopt titanium alloy or stainless steel material to make.
The diameter of described connecting rod 1 is 5mm～10mm, and length is 180mm～400mm.
Described screw 2 can be common Compact bone screw or cancellous bone screw, and its pitch is 1mm～3mm, and the depth of thread is 1mm～2mm, and screw length is 50mm～110mm.The near-end of described connecting rod 1 connects cancellous bone screw, and far-end connects the Compact bone screw.
The quantity of described screw 2 can have four or more as required.
If sensation broken ends of fractured bone instability in the art can also interconnect by transiting rod 7 between the connecting rod with two connecting rods 1 fixing (as shown in Figure 6) that are arranged in parallel, detain 8 and lock by connecting between transiting rod 7 and each connecting rod 1.
Fig. 7 is another syndeton sketch map of this utility model, and universal joint is arranged on connector 3 inside, screw 2 and connecting rod 1 can be stabilized in certain specific angle by universal joint by tightening fixed screw 10.
Claims (9)
1. a long bone of limbs is done the fracture inner fixed support, it is characterized in that, comprise connecting rod (1), screw (2), connector (3) and universal joint (4), described screw, connector, the complete setting of universal joint, described screw (2) has two at least, one end of each screw (2) places respectively in the universal joint (3) that matches with it, described universal joint (3) is arranged in the connector (3), described connecting rod (1) is fixedlyed connected with connector (3), can rotate universal fixing by multiaxis between described screw (2) and the connecting rod (1), described connecting rod (1) is vertical bar round bar or arcuation round bar.
2. inner fixed support according to claim 1 is characterized in that, described screw (2) has four.
3. inner fixed support according to claim 1 is characterized in that, the diameter 5mm～10mm of described connecting rod (1), and length is 180mm～400mm.
4. inner fixed support according to claim 1 is characterized in that, described connecting rod (1) adopts titanium alloy or stainless steel material to make.
5. inner fixed support according to claim 1 is characterized in that, described screw (2) is common Compact bone screw or cancellous bone screw, and its pitch is 1mm～3mm, and the depth of thread is 1mm～2mm, and screw length is 50mm～110mm.
6. inner fixed support according to claim 1 is characterized in that, the inside of universal joint (3) is provided with hold-down nut, screw and connecting rod can be stabilized in specific angle by universal joint by tightening hold-down nut.
7. inner fixed support according to claim 1 is characterized in that, the near-end of described connecting rod (1) connects cancellous bone screw, and far-end connects the Compact bone screw.
8. inner fixed support according to claim 1 is characterized in that, the head that described screw (2) is connected with universal joint (4) be shaped as falcon shape interface.
9. inner fixed support according to claim 1, it is characterized in that described connecting rod (1) has two, two connecting rods (1) are arranged in parallel, interconnect by transiting rod (7) between the connecting rod, between transiting rod (7) and each connecting rod (1) by connecting button (8) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202119274U CN201578350U (en) | 2009-11-05 | 2009-11-05 | Inner fixing bracket for four-limb long bone fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202119274U CN201578350U (en) | 2009-11-05 | 2009-11-05 | Inner fixing bracket for four-limb long bone fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201578350U true CN201578350U (en) | 2010-09-15 |
Family
ID=42720340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202119274U Expired - Fee Related CN201578350U (en) | 2009-11-05 | 2009-11-05 | Inner fixing bracket for four-limb long bone fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201578350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949228A (en) * | 2011-08-19 | 2013-03-06 | 上海市第六人民医院 | Internal fracture fixator |
-
2009
- 2009-11-05 CN CN2009202119274U patent/CN201578350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949228A (en) * | 2011-08-19 | 2013-03-06 | 上海市第六人民医院 | Internal fracture fixator |
| CN102949228B (en) * | 2011-08-19 | 2015-11-18 | 上海市第六人民医院 | A kind of 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20111105 |