CN2551203Y - Single-side multifunctional dynamic tubular external fixer - Google Patents

Abstract

The utility model discloses a single side multifunctional motorization tubular outer fixer, relating to a fracture reposition and fixation device, which comprises a connecting rod, a fixing clamp and a pressurizing expansion device. The utility model is characterized in that firstly, the connecting rod is tubular, a plane is arranged on one side of the connecting rod, the connecting rod is divided into two sections, the two sections are connected by a sliding sleeve pipe, and the connecting place adopts the plane corresponding relation; secondly, a fixed pin gripper block on the fixing clamp can rotate around a bolt, a plane is arranged at the lower part of a connecting rod hole, and cage knob is arranged at the lower part of the fixing clamp; thirdly, the pressurizing expansion device comprises a screw plug, a turnbuckle and a rod holder, the upper block and the lower block of the rod holder are connected and fixed together by two cage knobs, the connecting rod hole is positioned between the two blocks, a plane is arranged at the lower part of a hole wall, and the lower block has a cage knob to fix the rod holder and the connecting rod. The utility model effectively adjusts the fixed pin distance, the needle inserting direction, and pressurizing extension, achieves the motorization according to the requirement, improves the stability of bending resistance and anti-rotation remarkably, and has a very important meaning for quickening the healing of the fracture.

Description

One-sided Mobyneb motorization tubulose external fixator

Technical field

This utility model relates to the reduction of the fracture and stationary device, for treatment of fractures provides a kind of one-sided Mobyneb motorization tubulose external fixator.

Technical background

External fixator has been drawn the advantage of internal fixation and external fixation, overcome the shortcoming of the two, have wound little, reliable to little, the fixing-stable of interference of fracture, be beneficial to processing to wound surface, be beneficial to early functional exercise, avoided second operation take out inside-fixture, simple to operate, nursing is convenient and be easy to advantage such as adjustment, become the third fixed form of orthopaedics, started new era of orthopaedics and tranmstology, by wide popularization and application.That external fixator mainly divides is one-sided, three kinds of bilateral and ring types.Ring type and bilateral external fixator have need penetrate that limbs bilateral, wound are big, apparatus is heavy, be unfavorable for functional exercise, be unfavorable for shortcoming such as nursing, and its clinical practice is very limited.Unilateral external fixator is little, simple to operate with offside, the wound that it does not need to penetrate limbs, the nursing convenient and be beneficial to advantage such as early function exercise, be subjected to medical personnel and patient's welcome deeply, be widely used in clinically, it is representative with AO external fixator and Bastiani external fixator.The AO external fixator is easy to adjust pin spacing between interior pin spacing of pin group and pin group, is easy to adjust the inserting needle direction, good stability, but it can not pressurize and extend, and motorization is difficulty.The Bastiani external fixator has advantages such as being easy to pressurization extension and motorization, but it can not adjust pin spacing between interior pin spacing of pin group and pin group effectively, and its stability is significantly descended, and the inserting needle direction is fixed, adjust difficulty, it is used also be subjected to certain limitation.Chinese scholars has been carried out some researchs to it, has obtained some progress, makes the function of unilateral external fixator that improvement to a certain degree also arranged.But the adjustment of the adjustment of pin spacing, inserting needle direction between pin spacing and pin group in the pin group of unilateral external fixator, pressurization extension and motorization problem all fail to be solved effectively simultaneously, are seriously restricting the development and the application of external fixator.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned defective of unilateral external fixator, provide a kind of interior pin spacing of pin group that can increase to reduce pin spacing between the pin group again, can pressurize and can extend, the inserting needle direction can be adjusted neatly and motorization can be realized again, not only reliable and stable but also light and handy flexibly, the not only simple in structure but also one-sided easily Mobyneb motorization tubulose external fixator of nursing.

One-sided Mobyneb motorization tubulose external fixator, it is made up of connecting rod, fixation clamp and pressurizing and propping device.It is characterized in that: (1) connecting rod is a tubulose, its side is a plane, connecting rod is formed by two sections, one section core inserts among the sleeve pipe of another section, sliding sleeve connects between the two, have on the core one with the consistent plane of trend, plane of connecting rod, the length scale is arranged on the plane, also have one and corresponding plane, this plane in the sleeve pipe, a cage knob is arranged on the sleeve pipe; (2) top of fixation clamp is a bolt, is between locking pin fixture block and the bolt can to rotate around bolt non-threaded the connection, and there is a connecting rod hole at the middle part of fixation clamp, and the bottom in hole is a plane, and a cage knob is arranged at the bottom of fixation clamp; (3) the pressurizing and propping device is by screw rod plug, swivel nut and hold the bar device and form, hold the bar device by up and down two form, be connected and fixed by two cage knobs between two, a connecting rod hole is arranged between two, the bottom in hole is a plane, and a cage knob is arranged at the bottom of holding piece under the bar device.

Description of drawings

Accompanying drawing 1: this utility model structural representation.

Accompanying drawing 2: fixation clamp cross-sectional view.

Accompanying drawing 3: hold bar device cross-sectional view.

The utility model is made up of connecting rod, geometrical clamp and pressurizing and propping device. Connecting rod 1 is tubulose, it One side is a plane 2, and it is by two sections-section 3 and section 4-forms, and these two sections are slidingly connected by sleeve pipe, section 3 have in the sleeve pipe 6 of a core 5 inserting paragraphs 4, and core 5 has one to move towards consistent flat with the plane 2 of connecting rod 1 Face 7, the inner face of sleeve pipe 6 also have a plane corresponding with plane 7, and length scale 8 is arranged on the plane 7. One lock knob 9 is arranged on the plane of sleeve pipe 6. The top of the geometrical clamp 10 of bone staple is a bolt 11, bolt Staple fixture block 12 and nut 13 are arranged on 11, and fixture block 12 is made up of two parts up and down, has one between two parts Staple hole 14, the connecting rod hole 15 of middle part one circle of geometrical clamp 10, the bottom of connecting rod hole 15 walls is One plane 16, corresponding with the plane 2 of connecting rod 1, the bottom of body have one with plane 16 to perpendicular Cage knob 17. The pressurizing and propping device is by screw rod plug 18, swivel nut 19 and hold the bar device and form. Hold the bar device by upper piece 20 With lower 21 form, two are connected and fixed with two cage knobs 22. It is a connecting rod hole between two 23. The bottom in connecting rod hole 23 is a plane 24, and this plane is corresponding with the plane 2 of connecting rod 1, and is lower There is a cage knob 25 at the middle part of piece.

The specific embodiment

The purpose of this utility model is achieved through the following technical solutions: this utility model is made up of connecting rod, fixation clamp and pressurizing and propping device.Connecting rod 1 is a tubulose, so just can alleviate the weight of external fixator significantly.Its side is a plane 2, it is by two sections-section 3 and section 4-form, these two sections are slidingly connected by sleeve pipe, section 3 has a core 5 to insert in the sleeve pipe 6 of section 4, core 5 have one with the consistent plane 7 of trend, plane 2 of connecting rod 1, the inner face of sleeve pipe 6 also has one and 7 corresponding planes, plane, and length scale 8 is arranged on the plane 7, in order to the length that shows that connecting rod 1 stretches.Realize the Telescopic of connecting rod 1 by being slidingly connected between two sections of the connecting rods.One lock knob 9 is arranged, with stretching of locking connecting rod 1 on the plane of sleeve pipe 6.The top of the fixation clamp 10 of bone staple is a bolt 11, and staple fixture block 12 and nut 13 are arranged on the bolt 11, and fixture block 12 is made up of two parts up and down, a staple hole 14 is arranged, in order to wear staple between two parts.Fixture block 12 can freely rotate around bolt 11, to realize adjusting neatly the function of inserting needle direction.There is the connecting rod hole 15 of a circle at the middle part of fixation clamp 10, in order to wear connecting rod 1, the bottom of connecting rod hole 15 walls is a plane 16, and is corresponding with the plane 2 of connecting rod 1, the bottom of body have one with plane 16 to perpendicular cage knob 17, in order to fixing fixation clamp 10 and connecting rod 1.Fixation clamp can freely slide along the connecting rod longitudinal axis, so just pin spacing in the metering needle group and between the pin group neatly.The pressurizing and propping device is by screw rod plug 18, swivel nut 19 and hold the bar device and form.Hold the bar device by last piece 20 and following piece 21 form, two are connected and fixed with two cage knobs 22, can reach the flexible connection between pressurizing and propping device and the connecting rod like this, do not need pressurization or can remove the pressurizing and propping device when strutting, thereby reduced the weight of external fixator, made it more convenient.Between two a connecting rod hole 23, in order to wear connecting rod.The bottom in connecting rod hole 23 is a plane 24, and this plane is corresponding with the plane 2 of connecting rod 1, and there is a cage knob 25 at the middle part of following piece, in order to fixedly to hold bar device and connecting rod.Hold between two fixation clamps that the bar device is installed on same fracture segment.To hold bar device and connecting rod and be fixed together, the pressurizing and propping device just becomes as a whole with connecting rod, reaches the purpose of pressurizeing or extending by the rotary screw plug to prolong or to shorten the pressurizing and propping device.The plane of connecting rod is all corresponding with the plane of holding the bar device with the plane of fixation clamp, slip belled position between two sections of the connecting rods also has corresponding plane, this " plane-plane " of the present utility model is connected and fixed the rotation that structure has been eliminated external fixator, thereby greatly improved the anti-rotational stabilization of external fixator.Screw cage knob 9, promptly can lock the flexible of connecting rod 1; Unclamp lock knob 9, promptly recovered the slip between the connecting rod 1 two sections, Y-direction stress promptly conducts by bone fully, eliminated the stress force shelter reaction of external fixator, thereby realized the Y-direction motorization of external fixator, so this utility model can be controlled its motorization according to the concrete condition and the different times rigidity of adjusting external fixator of fracture.

Claims (4)

1, one-sided Mobyneb motorization tubulose external fixator is characterized in that it is made up of connecting rod, fixation clamp and pressurizing and propping device.

2, one-sided Mobyneb motorization tubulose external fixator according to claim 1, it is characterized in that connecting rod is a tubulose, its side is a plane, connecting rod is formed by two sections, and one section core inserts among the sleeve pipe of another section, and sliding sleeve connects between the two, have on the core one with the consistent plane of trend, the plane of connecting rod, the length scale is arranged on the plane, also have one and corresponding plane, this plane in the sleeve pipe, a cage knob is arranged on the sleeve pipe.

3, one-sided Mobyneb motorization tubulose external fixator according to claim 1, the top that it is characterized in that fixation clamp is a bolt, is between locking pin fixture block and the bolt can to rotate around bolt non-threaded the connection, the bottom in connecting rod hole is a plane, and a cage knob is arranged at the bottom of fixation clamp.

4, one-sided Mobyneb motorization tubulose external fixator according to claim 1, it is characterized in that the pressurizing and propping device is by screw rod plug, swivel nut and hold the bar device and form, hold the bar device by up and down two form, be connected and fixed by two cage knobs between two, one connecting rod hole is arranged between two, the bottom in hole is a plane, and a cage knob is arranged at the bottom of holding piece under the bar device.

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