CN109009373B - A fracture surgery fixation device - Google Patents

Abstract

The invention discloses a fracture operation fixing device, comprising a U-shaped base frame and a U-shaped fixing frame with an upward opening and arranged side by side. The height of the U-shaped fixing frame is not less than that of the U-shaped base frame, and the U-shaped base frame has an open end. It is connected with the U-shaped fixing frame through a strut, and the other open end of the U-shaped base frame is connected with a servo gear motor through a strut. The motor shaft of the servo gear motor is rigidly connected with the U-shaped fixing frame. The block is horizontally connected to one end of the support frame, and the other end of the support frame is connected to the bottom end of the U-shaped bracket through the second sliding block. The U-shaped bracket is provided with an outer slip ring, and the outer slip ring is connected to the two U-shaped brackets through the sliding rails arranged symmetrically and horizontally. Open end connection. The device has a simple overall structure and is convenient to use, and can achieve precise alignment of bones when medical personnel perform operations, save time and effort, and reduce the difficulty of work for medical personnel.

Description

A fracture surgery fixation device

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a fracture operation fixing device.

Background technique

In clinical medicine, fracture is one of the common diseases of bone trauma. The most commonly used method for treating fractures is to implement internal fixation surgery, that is, after the fracture site is reduced, the reduced bones are connected by means of bone plates and screws made of metal materials. stand up. The traditional orthopaedic external fixator for fracture and deformity correction is roughly divided into three categories in terms of product structure: unilateral combined external fixator, multilateral combined external fixator and annular combined external fixator. Most of the annular combined external fixation brackets currently used in my country are the annular external fixation bracket system products invented by the former Soviet Union. The annular external fixator technology is a very advanced technology, known as "minimally invasive and versatile". Although this technology can complete various fracture fixation and deformity correction from the simplest to the most complex, the biggest problem of the annular external fixator is It is very complicated to operate and use, the number of parts of the product is large, and the installation and combination are extremely cumbersome, which is difficult for most doctors to master. The complexity of installation technology greatly affects the promotion and application of this technology.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fracture operation fixing device, which solves the problem of inconvenient use of the existing fixing device when docking the bones.

The technical scheme adopted by the present invention is that a fracture operation fixing device includes a U-shaped base frame and a U-shaped fixing frame with an upward opening and arranged side by side. The height of the U-shaped fixing frame is not less than the height of the U-shaped base frame. One open end of the base frame is connected with the U-shaped fixing frame through a strut, and the other open end of the U-shaped base frame is connected with a servo gear motor through a strut, and the motor shaft of the servo gear motor is rigidly connected with the U-shaped fixing frame. The U-shaped base frame The bottom is horizontally connected to one end of the support frame through the first slider, and the other end of the support frame is connected to the bottom end of the U-shaped bracket through the second slider. The U-shaped bracket is provided with an outer slip ring, and the outer slip ring is connected with the sliding rails arranged symmetrically and horizontally. The two open ends of the U-shaped bracket are connected.

The present invention is also characterized in that,

Both the U-shaped base frame and the U-shaped fixing frame are fixed on the base.

The U-shaped fixing frame is also uniformly provided with a plurality of through holes along the circumferential direction.

The U-shaped fixing frame is uniformly sleeved with three first chucks along the circumferential direction, each first clamping head is fixed with a first steel nail, and each first steel nail passes through the through hole on the U-shaped fixing frame and protrudes out The first collet surface.

The outer slip ring is uniformly sleeved with three second chucks along the circumferential direction, and a second steel nail is fixed on each of the second chucks.

A motor is fixed on the U-shaped bracket, a crank-slider mechanism is connected to the motor shaft of the motor, the crank-slider mechanism is connected with a slide rail, and the slide rail reciprocates through the crank-slider mechanism.

The beneficial effects of the present invention are that the overall structure is simple, the use is convenient, and the precise alignment of the bones is realized when the medical staff performs an operation, which saves time and labor, and reduces the work difficulty of the medical staff.

Description of drawings

FIG. 1 is a schematic structural diagram of a fracture surgery fixation device of the present invention.

In the figure, 1. Base, 2. U-shaped fixing frame, 3. U-shaped base frame, 4. First chuck, 5. Slide rail, 6. Servo gear motor, 7. Support frame, 8. Second chuck , 9.U-shaped bracket, 10. Outer slip ring, 11. Inner slip ring, 12. Motor.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

A fracture surgery fixation device of the present invention, as shown in FIG. 1 , includes a U-shaped base frame 3 and a U-shaped fixation frame 2 with an upward opening and arranged side by side. The U-shaped base frame 3 and the U-shaped fixation frame 2 are both fixed on the base 1 . , the height of the U-shaped base frame 2 is not less than the height of the base frame 3, one open end of the U-shaped base frame 3 is connected with the U-shaped base frame 2 through a strut, and the other open end of the U-shaped base frame 3 is connected with a servo through a strut The motor shafts of the geared motor 6 and the servo geared motor 6 are rigidly connected to the U-shaped fixing frame 2 . The U-shaped fixing frame 2 is also uniformly provided with a plurality of through holes along the circumferential direction, and the U-shaped fixing frame 2 is uniformly sleeved with three circumferentially. The first collet 4, each first collet 4 is fixed with a first steel nail, and each first steel nail passes through the through hole on the U-shaped fixing frame 2 and protrudes from the surface of the first collet 4;

The bottom of the U-shaped base frame 3 is horizontally connected to one end of the support frame 7 through the first slider, the support frame 7 is hollow inside, the support frame 7 is made of light-transmitting material, and the other end of the support frame 7 is connected to the U-shaped bracket 9 through the second slider. At the bottom of the end, the opening of the U-shaped bracket 9 faces upward and is fixed on the installation table. The side of the U-shaped bracket 9 is supported by a vertically arranged support rod. The U-shaped bracket 9 is provided with an outer slip ring 10, and the outer slip ring 10 is nested inside. There is an inner slip ring 11, the inner slip ring 11 and the outer slip ring 10 are respectively provided with a plurality of through holes uniformly along the circumferential direction, and the positions and sizes of the through holes on the inner slip ring 11 and the outer slip ring 10 are the same, and the outer slip ring 10 Three second chucks 8 are evenly sleeved along the circumferential direction, each second chuck 8 is fixed with a second steel nail, and each second steel nail passes through the through holes on the inner slip ring 11 and the outer slip ring 10 And protruding from the surface of the second chuck 8, the outer slip ring 10 is connected with the two open ends of the U-shaped bracket 9 through the sliding rail 5 arranged symmetrically and horizontally. The motor 12 is fixed, the motor shaft of the motor 12 is connected with a crank-slider mechanism, the crank-slider mechanism is connected with a slide rail 5, and the slide rail 5 reciprocates through the crank-slider mechanism.

The first collet 4 and the second collet 8 can be used for locking the first steel nail and the second steel nail, respectively.

The present invention is a fracture operation fixation device, and its specific working principle is as follows:

In specific use, the bones that need to be docked are placed horizontally into the cavity formed by the U-shaped fixing frame 2, the U-shaped bracket 9 and the outer slip ring 10, and the parts that need to be docked are placed on the supporting frame 7, in order to avoid X-rays When the perspective is used, the photo will be affected. The supporting frame 7 used is made of light-transmitting material. Slide the first slider and the second slider 8 to adjust the overall length of the device. Use the first chuck 4 on the U-shaped fixing frame 2 and The first steel nails locate the bones. Since the first steel nails are evenly distributed, stable fixation of the bones can be achieved. The servo gear motor 6 is rigidly connected with the U-shaped fixing frame 2, so that the rotation angle of the U-shaped fixing frame 2 can be adjusted, thereby adjusting the bone's rotation angle. In the docking position, the other docking bone is put into the U-shaped bracket 9 and the outer slip ring 10, and the bone is fixed by the second chuck 8 and the second steel nail on the outer slip ring 10, and the motor 12 rotates to drive the crank slider mechanism, The crank-slider mechanism drives the slide rail 5 to move left and right, and the slide rail 5 drives the outer slip ring 10 to move left and right in the U-shaped bracket 9, so as to realize the electric adjustment of the docking position and angle of the bones. Shooting to achieve precise docking, saving time and effort, and reducing the difficulty of medical staff's work.

Claims (3)

1. A fracture operation fixation device, characterized in that it comprises a U-shaped base frame (3) and a U-shaped fixing frame (2) whose opening is upward and arranged side by side, and the height of the U-shaped fixing frame (2) is not less than U The height of the U-shaped base frame (3), one open end of the U-shaped base frame (3) is connected with the U-shaped fixing frame (2) through a strut, and the other open end of the U-shaped base frame (3) is connected by a strut. The support rod is connected with a servo reduction motor (6), the motor shaft of the servo reduction motor (6) is rigidly connected with the U-shaped fixing frame (2), and the bottom of the U-shaped base frame (3) is horizontally connected by a first sliding block One end of the support frame (7), the other end of the support frame (7) is connected to the bottom end of the U-shaped bracket (9) through the second slider, and the U-shaped bracket (9) is provided with an outer slip ring (10), so The outer slip ring (10) is connected with the two open ends of the U-shaped bracket (9) through the slide rails (5) arranged symmetrically and horizontally; The U-shaped base frame (3) and the U-shaped fixing frame (2) are both fixed on the base (1); the U-shaped fixing frame (2) is also uniformly provided with a plurality of through holes along the circumferential direction; The U-shaped fixing frame (2) is uniformly sleeved with three first chucks (4) along the circumferential direction, each of the first chucks (4) is fixed with a first steel nail, and each first steel nail passes through The through hole on the U-shaped fixing frame (2) protrudes from the surface of the first chuck (4). 2. A fracture surgery fixation device according to claim 1, characterized in that, the outer slip ring (10) is uniformly sleeved with three second chucks (8) along the circumferential direction, and each second chuck (8) A second steel nail is fixed on it. 3. A fracture surgery fixation device according to claim 1, characterized in that a motor (12) is fixed on the U-shaped bracket (9), and a crank slider is connected to a motor shaft of the motor (12). A block mechanism, the crank-slider mechanism is connected with one of the slide rails (5), and the slide rail (5) reciprocates through the crank-slider mechanism.

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