CN211633527U - Combined tension external fixing frame - Google Patents

Abstract

The utility model discloses a modular tension external fixation frame, including a plurality of supports of mutual articulated, the support includes banding main part, and the main part both ends are all upwards buckled, bend and all be equipped with the trompil on two facades that form, the embedded needle file that is equipped with of trompil, are connected with elasticity kirschner wire on the needle file, the utility model discloses a many serial-type articulated structures of support make many elasticity kirschner wires form relative and stable three-dimensional spatial position, through the adjustable articulated angle control of each support and the depth of elasticity kirschner wire, angle and elastic strength control, make the quantity of elasticity kirschner wire, the angle of inserting and tension accord with the fracture correction requirement in different stages, can accurately exert and maintain the anastomotic pressure of fracture face, keep the power of correcting to the fracture part, be favorable to the later stage fine setting and the healing of fracture position involution face.

Description

Combined tension external fixing frame

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a combined tension external fixing frame capable of three-dimensionally correcting fracture positions.

Background

The fracture of clinical treatment needs to be fixed to the position of the broken or dislocated skeleton position, and the current fixing mode mainly has the internal fixation method, needs to cut open tissues such as skin, muscle, tendon and periosteum, and the operation process can seriously damage tissues around the wound surface, easily damages nerves and the like, causes two injuries, and can not be corrected slightly and stretched in time in the treatment process, resulting in poor position alignment or poor bone recovery.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems existing in the prior art; provides a combined tension external fixing frame capable of three-dimensionally correcting fracture parts.

In order to solve the technical problem, the utility model mainly adopts the following technical proposal:

the utility model discloses a combination formula tension external fixation frame for the fracture is corrected, and external fixation frame includes a plurality of supports of mutual articulated, the support includes banding main part, elasticity kirschner wire is connected respectively at the main part both ends, and external fixation frame can adopt a plurality of supports to articulate to constitute according to the quantity and the position of required kirschner wire in the treatment process, and the articulated angle of each support is adjustable, makes quantity, the angle of inserting the needle and the tension of elasticity kirschner wire accord with the correction requirement in different stages, and the accurate anastomotic pressure of maintaining and applying fracture face is favorable to the healing of fracture.

Preferably, both ends of the main body are bent upwards, the bent included angles are the same, two vertical surfaces formed by bending are provided with holes, needle bases are embedded in the holes, needle holes penetrating through the needle bases and having the same axis as the holes are formed in the needle bases, needle tails of the elastic kirschner wires are embedded in the needle holes, screw holes are formed in the side surfaces of the needle bases, fastening bolts are arranged in the screw holes, the heads of the fastening bolts abut against and fix the elastic kirschner wires, the elastic kirschner wires are formed and keep relatively stable three-dimensional space positions under the action of an external fixing frame, the correction force on fracture parts is kept, the needle insertion depth, the needle insertion angle and the elastic strength of the elastic kirschner wires can be flexibly adjusted according to treatment requirements, and meanwhile, the replaceable needle bases can meet the requirements of selecting different elastic kirschner wires according to different treatment schemes.

As preferred, the left surface of main part is equipped with left round pin axle sleeve, is equipped with the pinhole on the above-mentioned left round pin axle sleeve, the right surface of main part is equipped with the right round pin axle sleeve the same with above-mentioned left round pin axle sleeve structure, is equipped with the pinhole on the above-mentioned right round pin axle sleeve, left side round pin axle sleeve and right round pin axle sleeve crisscross distribution around, and the right round pin axle sleeve of the support of the left side inlays with the left round pin axle sleeve of the adjacent support of the right side and forms hinge structure, and the pinhole of the right round pin axle sleeve among the above-mentioned hinge structure is coaxial and the interpolation has the round pin axle, and left side support and the support of the right use the round pin axle to rotate as the axis, through the hinge structure of leg joint department, each support of messenger external fixation frame.

Preferably, the side surfaces of the left pin shaft sleeve and the right pin shaft sleeve are respectively provided with a screw hole perpendicular to the axis of the pin hole, a fastening bolt is arranged in each screw hole, the head of each fastening bolt penetrates through each screw hole to abut against and fix the pin shaft, and the hinge angle between the adjacent supports can be adjusted and maintained according to treatment requirements through the fastening bolts.

Preferably, the bracket comprises a left bracket, a right bracket and at least one middle bracket, the left side of the main body of the left bracket is planar, a right pin shaft sleeve is arranged on the right side of the left bracket, a pin hole is arranged on the right pin shaft sleeve, the right side of the main body of the right bracket is planar, a left pin shaft sleeve with the same structure as the right pin shaft sleeve is arranged on the left side of the main body of the right bracket, a pin hole is arranged on the left pin shaft sleeve, a left pin shaft sleeve is arranged on the left side of the main body of the middle bracket, a right pin shaft sleeve is arranged on the right side of the main body of the middle bracket, the right pin shaft sleeve of the left bracket and the left pin shaft sleeve of the adjacent middle bracket are embedded to form a hinge structure, the right pin shaft sleeve and the left pin shaft sleeve of the hinge structure are coaxial and are internally inserted with a pin shaft, the left bracket and the adjacent middle bracket rotate by taking, the pin shaft is coaxially inserted in the left pin shaft sleeve pin hole and the right pin shaft sleeve pin hole of the hinge structure, and the right side support and the adjacent middle support rotate by taking the pin shaft as an axis.

Preferably, the side surfaces of the left pin shaft sleeve and the right pin shaft sleeve are respectively provided with a screw hole perpendicular to the axis of the pin hole, a fastening bolt is arranged in the screw hole, and the head of the fastening bolt penetrates through the screw hole to abut against and fix the pin shaft.

The utility model has the advantages that: the external fixing frame adopts a multi-support tandem type hinge structure, so that a plurality of elastic Kirschner wires form relative and stable three-dimensional space positions, the number, the needle insertion angle and the tension of the elastic Kirschner wires meet the requirements of fracture correction in different stages through adjustable hinge angle control of each support and the depth, the angle and the elastic strength of the elastic Kirschner wires, the anastomotic pressure of a fracture surface can be accurately applied and maintained, the correcting force of a fracture part is kept, and the later fine adjustment and healing of the involutive surface of the fracture part are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded schematic view of the structure of fig. 1.

Fig. 3 is an exploded view of another structure of the present invention.

In the figure, 1, a support, 11, a main body, 12, a vertical surface, 13, an opening, 14, a left pin shaft sleeve, 15, a right pin shaft sleeve, 2, a needle seat, 21, a needle hole, 3, a fastening bolt and 4, a pin shaft are arranged.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the combined tension external fixation frame of the embodiment is used for correcting fracture, as shown in fig. 1 and fig. 2, the external fixation frame comprises three brackets 1 which are hinged with each other, each bracket comprises a strip-shaped main body 11, two ends of each main body are bent upwards and have the same bending angle, two vertical surfaces 12 formed by bending are respectively provided with an opening 13, a needle seat 2 is embedded in each opening, a needle hole 21 which penetrates through the needle seat and has the same axis with the opening is designed on the needle seat, an elastic Kirschner wire is embedded in each needle hole, a screw hole is designed on the side surface of each needle seat, a fastening bolt 3 is installed in each screw hole, the head of each fastening bolt penetrates through each screw hole to be abutted against and fix the elastic Kirschner wire, the brackets comprise a left bracket, a right bracket and a middle bracket, wherein the left side surface of the main body of the left bracket is planar, the right pin shaft sleeve is provided with a pin hole, wherein the right side surface of the main body of the right bracket is in a plane shape, the left side surface of the main body of the right bracket is provided with two spaced left pin shaft sleeves 14 which have an integral structure with the main body and have the same structure with the right pin shaft sleeves, the left pin shaft sleeves are provided with pin holes, the left side surface of the main body of the middle bracket is provided with a left pin shaft sleeve, the right side surface of the main body of the middle bracket is provided with a right pin shaft sleeve, the two right pin shaft sleeves of the left bracket and the two left pin shaft sleeves of the middle bracket are embedded to form a hinge structure, the pin hole of the right pin shaft sleeve of the hinge structure is coaxial with the pin hole of the left pin shaft sleeve and is internally inserted with a pin shaft 4, the left bracket and the middle bracket rotate by taking the pin shaft as an axis and form an included angle, the two left pin shaft sleeves of the right bracket, the right side support and the middle support rotate by taking the pin shaft as an axis and form an included angle.

When in use, the left bracket, the middle bracket and the right bracket are assembled into an integral external fixing frame, the upper part and the lower part of the fracture part are respectively penetrated with three elastic Kirschner wires to carry out the alignment and fixation of bones according to the treatment requirement and the guide of an X-ray machine, then the tails of the three elastic Kirschner wires at the upper part are inserted into needle base pinholes at one end of the corresponding bracket of the external fixing frame, the tails of the three elastic Kirschner wires at the lower part are inserted into needle base pinholes at the other end of the corresponding bracket of the external fixing frame, corresponding included angles among the brackets are respectively adjusted and screwed, the spatial position of each bracket is determined, then fastening bolts on the needle bases are screwed to fix the Kirschner wires with the needle bases, the three-dimensional correction and positioning fixing frame of a plurality of elastic Kirschner wires is completed, when one or a plurality of the elastic Kirschner wires is adjusted according, or loosening the fastening bolt between the corresponding brackets to adjust the hinged included angle of the two brackets, the needle inserting angle, the needle inserting depth and the elastic strength of the elastic kirschner wire can be flexibly adjusted, the alignment, the anastomosis pressure and the correction tension of the fracture surface are accurately applied or maintained, and the later fine adjustment of the fracture alignment surface and the fracture healing control are met.

In the description of the present invention, the technical terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the direction or the position relationship based on the direction or the position relationship shown in the drawings, and only for the convenience of description and understanding, the above description is not limiting, the present invention is not limited to the above description, and the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the present invention should be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a modular tension external fixation frame for the fracture is corrected, its characterized in that: the external fixation frame comprises a plurality of supports (1) which are hinged to each other, each support comprises a strip-shaped main body (11), and two ends of each main body are respectively connected with an elastic Kirschner wire.

2. The modular tension external fixation frame of claim 1, further comprising: main part (11) both ends all upwards buckle, and the contained angle of above-mentioned buckling is the same, all is equipped with trompil (13) on two facades (12) of bending formation, the embedded needle file (2) that is equipped with of trompil, be equipped with on the needle file and run through the needle file and with pinhole (21) that the trompil axis is the same, the backshank of elasticity kirschner's needle inlays to be located in above-mentioned pinhole, and the side of needle file is equipped with the screw, is equipped with fastening bolt (3) in the screw, and fastening bolt's head is supported tightly and is fixed.

3. The modular tension external fixator of claim 1 or 2 wherein: the left surface of main part (11) is equipped with left round pin axle sleeve (14), is equipped with the pinhole on the above-mentioned left round pin axle sleeve, the right surface of main part is equipped with right round pin axle sleeve (15) the same with above-mentioned left round pin axle sleeve structure, is equipped with the pinhole on the above-mentioned right round pin axle sleeve, left side round pin axle sleeve and right round pin axle sleeve crisscross distribution around, the right round pin axle sleeve of the support on the left side and the left round pin axle sleeve of adjacent the support on the right inlay and form hinge structure, and the pinhole of the right round pin axle sleeve among the above-mentioned hinge structure is coaxial and the interpolation of pinhole of left round pin axle sleeve has round pin axle (.

4. The modular tension external fixation frame of claim 3, wherein: the side surfaces of the left pin shaft sleeve (14) and the right pin shaft sleeve (15) are respectively provided with a screw hole perpendicular to the axis of the pin hole, a fastening bolt (3) is arranged in the screw hole, and the head of the fastening bolt penetrates through the screw hole to abut against and fix the pin shaft (4).

5. The modular tension external fixator of claim 1 or 2 wherein: the support (1) is divided into a left support, a right support and at least one middle support, the left side of the main body of the left support is planar, a right pin shaft sleeve (15) is arranged on the right side of the left support, a pin hole is arranged on the right pin shaft sleeve, the right side of the main body of the right support is planar, a left pin shaft sleeve (14) which has the same structure as the right pin shaft sleeve is arranged on the left side of the main body of the right support, a pin hole is arranged on the left pin shaft sleeve, a left pin shaft sleeve is arranged on the left side of the main body of the middle support, a right pin shaft sleeve is arranged on the right side of the main body of the middle support, the right pin shaft sleeve of the left support and the left pin shaft sleeve of the adjacent middle support are embedded to form a hinge structure, the pin shaft sleeve pin hole of the right pin shaft sleeve of the, the left pin shaft sleeve of the right side support and the right pin shaft sleeve of the adjacent middle support are embedded to form a hinge structure, a left pin shaft sleeve pin hole and a right pin shaft sleeve pin shaft hole of the hinge structure are coaxial and are internally inserted with a pin shaft, and the right side support and the adjacent middle support rotate by taking the pin shaft as an axis.

6. The modular tension external fixation frame of claim 5, wherein: the side surfaces of the left pin shaft sleeve (14) and the right pin shaft sleeve (15) are respectively provided with a screw hole perpendicular to the axis of the pin hole, a fastening bolt (3) is arranged in the screw hole, and the head of the fastening bolt penetrates through the screw hole to abut against and fix the pin shaft (4).

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