CN219645858U - Universal guider for femur neck hollow screw - Google Patents

Abstract

The utility model discloses a femoral neck hollow screw universal guide, which comprises a guide base, a guide rod and a universal guide hole, wherein the outer wall of the guide base is provided with the universal guide hole, the guide rod is arranged on the inner wall of the universal guide hole in a penetrating manner, and a first supporting rod is arranged on the inner wall of the guide base. According to the utility model, the position fixing of the guide device is realized by installing the guide rod, the universal guide hole and the fixing hole, the sliding is not easy, the position fixing effect of the universal guide hole is ensured, the screw or the Kirschner wire is inserted into the fixing holes at the upper end and the lower end of the guide base to fix the position, the sliding of the guide device base is prevented, the Kirschner wire is drilled into the hollow guide rod, the position of the guide Kirschner wire is confirmed through perspective, the femoral screw is drilled into the guide Kirschner wire along the guide Kirschner wire, the operation is completed, the position fixing of the guide device is realized, the sliding is not easy, the position fixing of the universal guide hole is ensured, and the hollow screw guide wire can be accurately drilled into a minimally invasive operation incision, so that the functions of safety and rapidness are realized.

Description

Universal guider for femur neck hollow screw

Technical Field

The utility model relates to the technical field, in particular to a femur neck hollow screw universal guide device.

Background

Currently, there is only one femoral neck screw guide clinically, which is suitable for use in surgical treatment of intertrochanteric fractures. It is a non-stationary hand-held guide, with a rake angle of 15 degrees, a neck finish angle of 127 degrees, and a fixed angle guide. Because the angles of the anteversion angle and the neck shaft angle of the femur neck are different from person to person, and the maximum angle of the femur neck screw reaches 155 degrees, the angle fixing cannot be realized by the current guide device. The universal guider for the femur neck hollow screw, which is designed by us, is a fixed type universal guider, has free angle and universal adjustment, has forward inclination angle of 5-30 degrees and neck shaft angle of 110-170 degrees, and can realize personalized, characteristic and customized angle fixation of the femur neck screw according to the angle difference of femur necks of different people.

At present, no universal guide device exists, in clinical operation, an operation incision needs to be enlarged, and a hollow screw guide needle is drilled under repeated perspective, so that operation damage, bleeding amount and radiation injury of the operation perspective to a patient can be increased. The universal guide device is adopted, so that the hollow screw guide pin can be accurately drilled in a minimally invasive surgical incision, and the surgical incision surgical instrument is safe and rapid.

Disclosure of Invention

The utility model aims to provide a femoral neck hollow screw universal guide device so as to solve the technical problems of angle adjustment, safety and rapidness in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the femoral neck hollow screw universal guide comprises a guide base, a guide rod and a universal guide hole, wherein the outer wall of the guide base is provided with the universal guide hole, the guide rod is arranged in the inner wall of the universal guide hole in a penetrating manner, and the first supporting rod is arranged on the inner wall of the guide base;

the outer wall of the first supporting rod is provided with a sliding cylinder, the top of the guide base is provided with a first opening, the outer wall of the sliding cylinder is provided with a pull rod, and one end of the pull rod extends to the top of the guide base through the first opening;

the outer wall of the pull rod is provided with a spring, one end of the spring is connected with the inner wall of the guide base, and one end of the pull rod is provided with a clamping rod.

Preferably, the outer wall of the guide base is provided with a fixing hole, and the outer wall of the guide rod is provided with a handle.

Preferably, the guide rod is a hollow rod.

Preferably, the forward inclination angle of the universal guide hole can be adjusted by 5-30 degrees in a universal way, and the neck dry angle can be adjusted by 110-170 degrees in a universal way.

Preferably, the top of the guide base is provided with three groups of fixing holes.

Preferably, the outer wall of the universal guiding hole is provided with a bayonet, and one end of the clamping rod extends to the inside of the bayonet.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the position fixing of the guide device is realized by installing the guide rod, the universal guide hole and the fixing hole, the sliding difficulty is realized, the position fixing effect of the universal guide hole is ensured, the femoral screw feeding point is determined according to the preoperative X-ray planning, the guide base is placed at a proper position (closely attached to femur or adhered to skin) under the perspective in the operation, the screw or the Kirschner wire is placed into the fixing holes at the upper end and the lower end of the guide base to fix the position, the guide device base is prevented from sliding, the guide rod is inserted into the universal guide hole, the Kirschner wire is drilled into the hollow guide rod according to the preoperative planning, the position of the guide Kirschner wire is confirmed to be proper in the perspective, the guide base and the guide rod are removed, the femoral screw is drilled along the guide Kirschner wire, the operation is completed, the position fixing of the guide device is realized, the position fixing of the universal guide hole is ensured, the hollow screw guide pin can be accurately drilled in a minimally invasive operation incision, and the functions of safety and rapidness are realized;

2. according to the utility model, by installing the pull rod, the spring and the bayonet, the effect of accurate fixation of different people is realized, the pull rod is pulled to drive the sliding cylinder to move, the sliding cylinder moves to enable the pull rod to drive the spring to move, the spring moves to enable the pull rod to drive the clamping rod to move out of the bayonet, the universal guide hole is loosened after the pull rod is rotated to a proper position, the spring drives the pull rod to enable the clamping rod to be clamped into the bayonet to enable the universal guide hole to be fixed, the angle of the universal guide device can be adjusted within a certain range, personalized and customized angle measurement and adjustment can be realized according to different angles of femoral necks of different people, and the accurate fixation function of different people is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a guide base structure according to the present utility model;

FIG. 3 is a schematic view of the structure of part A of the present utility model;

fig. 4 is a schematic diagram of a B-part structure of the present utility model.

In the figure: 1. a guide base; 2. a fixing hole; 3. a guide rod; 4. a grip; 5. a universal guide hole; 6. a bayonet; 7. a first strut; 8. a slide cylinder; 9. a first opening; 10. a pull rod; 11. a spring; 12. and (5) clamping the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, the universal guide for the femoral neck hollow screw comprises a guide base 1, a guide rod 3 and a universal guide hole 5, wherein the outer wall of the guide base 1 is provided with the universal guide hole 5, the inner wall of the universal guide hole 5 is provided with the guide rod 3 in a penetrating way, the inner wall of the guide base 1 is provided with a first support rod 7, the outer wall of the guide base 1 is provided with a fixing hole 2, the outer wall of the guide rod 3 is provided with a handle 4, the guide rod 3 is a hollow rod, the forward inclination angle of the universal guide hole 5 can be universally adjusted by 5-30 degrees, the neck shaft angle can be universally adjusted by 110-170 degrees, the top of the guide base 1 is provided with three groups of fixing holes 2, the guide can be more minimally invasive, even operated percutaneously, the guide is not required to be cut, the trauma to a patient caused by an operation is greatly reduced, according to the X-ray film planning before the operation, the femur screw nail feeding point is determined, the guide base 1 is placed at a proper position (clung to femur or veneer) under the perspective of operation, screws or Kirschner wires are placed into the fixing holes 2 at the upper end and the lower end of the guide base 1 to fix the positions, the guide base is prevented from sliding, the guide rod 3 is inserted into the universal guide hole 5, a proper angle is adjusted according to the preoperation planning, the Kirschner wires are drilled into the hollow guide rod 3, the position of the guide Kirschner wires is confirmed through the perspective, the guide base 1 and the guide rod 3 are removed, the femur screws are drilled into the guide Kirschner wires along the guide Kirschner wires, the operation is completed, the position of the guide is fixed, the sliding is difficult, the position of the universal guide hole 5 is guaranteed, the hollow screw guide pins can be accurately drilled into minimally invasive operation incisions, and the functions of safety and rapidness are realized.

Referring to fig. 2 and 3, the sliding cylinder 8 is installed on the outer wall of the first supporting rod 7, the first opening 9 is provided at the top of the guiding base 1, the pull rod 10 is installed on the outer wall of the sliding cylinder 8, one end of the pull rod 10 extends to the top of the guiding base 1 through the first opening 9, the spring 11 is installed on the outer wall of the pull rod 10, one end of the spring 11 is connected with the inner wall of the guiding base 1, the clamping rod 12 is installed on one end of the pull rod 10, the bayonet 6 is provided on the outer wall of the universal guiding hole 5, one end of the clamping rod 12 extends to the inside of the bayonet 6, the sliding cylinder 8 is pulled to drive the sliding cylinder 8 to move, the pull rod 10 drives the spring 11 to move, the spring 11 is released to drive the clamping rod 12 to move out of the bayonet 6, the universal guiding hole 5 rotates to a proper position, the pull rod 10 is driven by the spring 11 to clamp the clamping rod 12 into the bayonet 6, the universal guiding hole 5 is fixed, the angle of the universal guiding device can be adjusted within a certain range, the angle of the femoral neck of different people can be measured and customized, the angle and the adjustment of different people can be accurately fixed.

The guide device can be operated more minimally, even percutaneously, need not to cut open, the wound that the operation brought to the patient is greatly reduced, according to the planning of X-ray film before the operation, the nail point is advanced to the femur screw, position fixing with guide base 1 in suitable position (hugging closely the femur or rubberizing) under the perspective in the art, put into screw or kirschner wire through guide base 1 upper and lower both ends fixed orifices 2 and do the position fixing, prevent the guide device base slip, insert guide bar 3 by universal guiding hole 5, according to the planning before the operation, adjust suitable angle, bore kirschner wire through cavity guide bar 3, the perspective confirms that the position of guide kirschner wire is suitable, demolish guide base 1 and guide bar 3, bore into the femur screw along the guide kirschner wire, the operation is accomplished, the position fixing of guide device has been realized, be difficult for sliding, the position fixing of universal guiding hole 5 has been guaranteed, can be in the operation incision of minimally invasive, the accurate boring hollow screw guide pin, safe and quick function, pull rod 10 drive slide 8, slide 8 remove and make pull rod 10 drive spring 11 remove, make 10 drive bayonet 6, can not be adjusted by the angle by the universal guide bar 10 to the universal guide bar 6, can be adjusted by the angle is realized at the same angle, the inside the universal neck 10 is realized, can not to the angle is suitable to be adjusted to the guide 6, can be adjusted to the angle is realized, the universal, can be adjusted to the angle is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a hollow screw universal director of femoral neck, includes guide base (1), guide bar (3) and universal guiding hole (5), its characterized in that: the outer wall of the guide base (1) is provided with a universal guide hole (5), the inner wall of the universal guide hole (5) is provided with a guide rod (3) in a penetrating way, and the inner wall of the guide base (1) is provided with a first supporting rod (7);

the outer wall of the first supporting rod (7) is provided with a sliding cylinder (8), the top of the guide base (1) is provided with a first opening (9), the outer wall of the sliding cylinder (8) is provided with a pull rod (10), and one end of the pull rod (10) extends to the top of the guide base (1) through the first opening (9);

the outer wall of the pull rod (10) is provided with a spring (11), one end of the spring (11) is connected with the inner wall of the guide base (1), and one end of the pull rod (10) is provided with a clamping rod (12).

2. The femoral neck cannulated screw universal guide of claim 1, wherein: the outer wall of the guide base (1) is provided with a fixing hole (2), and the outer wall of the guide rod (3) is provided with a handle (4).

3. The femoral neck cannulated screw universal guide of claim 1, wherein: the guide rod (3) is a hollow rod.

4. The femoral neck cannulated screw universal guide of claim 1, wherein: the forward inclination angle of the universal guide hole (5) can be adjusted by 5-30 degrees in a universal way, and the neck dry angle can be adjusted by 110-170 degrees in a universal way.

5. The femoral neck cannulated screw universal guide of claim 1, wherein: three groups of fixing holes (2) are formed in the top of the guide base (1).

6. The femoral neck cannulated screw universal guide of claim 1, wherein: the outer wall of the universal guide hole (5) is provided with a bayonet (6), and one end of the clamping rod (12) extends to the inside of the bayonet (6).