阅读说明：本技术 一种骨折横向复位牵引装置 (Fracture transverse reduction traction device ) 是由 姜未 林燕 林依淼 刘文涛 林博文 李广恒 张晓明 胡新佳 于 2020-04-26 设计创作，主要内容包括：本申请提供了一种骨折横向复位牵引装置,包括：长板、多个可伸缩套管及设置在所述长板上的多个针固定座和至少一个角度微调座,所述针固定座包括位置可调的滑座和固定设置在所述滑座上的骨针阻尼机构,用于横向复位的骨针穿过所述骨针阻尼机构的骨针穿孔后利用设置在所述滑座的通孔处的孔针座与所述针固定座锁定连接；所述角度微调座与倾斜设置在骨头上的骨针的尾端相连,通过调节倾斜设置的骨针的倾斜角度对断骨进行旋转调整；所述可伸缩套管套设在相应的骨针上,且所述可伸缩套管位于长板与骨头之间。本申请结构简单、使用方便、且能够满足横向牵引、扭转复位的功能。(The application provides a fracture transverse reduction draw gear, include: the bone acupuncture needle device comprises a long plate, a plurality of telescopic sleeves, a plurality of needle fixing seats and at least one angle fine adjustment seat, wherein the needle fixing seats are arranged on the long plate and comprise sliding seats with adjustable positions and bone acupuncture damping mechanisms fixedly arranged on the sliding seats; the angle fine adjustment seat is connected with the tail end of a bone needle obliquely arranged on the bone, and the broken bone is rotationally adjusted by adjusting the oblique angle of the obliquely arranged bone needle; the telescopic sleeve is sleeved on the corresponding bone pins and is positioned between the long plate and the bone. This application simple structure, convenient to use, and can satisfy transversely draw, twist reverse the function that resets.)

1. A transverse reduction traction device for fractures, comprising:

a long plate (1);

the bone needle resetting device comprises a plurality of needle fixing seats (2) arranged on a long plate (1), wherein each needle fixing seat (2) comprises a sliding seat (21) with an adjustable position and a bone needle damping mechanism (22) fixedly arranged on the sliding seat (21), and a bone needle (4) for transverse resetting penetrates through a bone needle through hole (2211) of the bone needle damping mechanism (22) and then is connected with the needle fixing seat (2) in a locking mode through a hole needle seat arranged at a through hole (214) of the sliding seat (21);

the bone fracture adjusting device comprises at least one angle fine adjustment seat (3) arranged on the long plate (1), wherein the angle fine adjustment seat (3) is connected with the tail end of a bone needle (4) obliquely arranged on a bone, and the broken bone is rotationally adjusted by adjusting the inclination angle of the obliquely arranged bone needle (4);

a plurality of retractable sleeves (5), retractable sleeves (5) are sleeved on corresponding spicules (4), and retractable sleeves (5) are located between long plate (1) and the bone.

2. The transverse reduction traction device for bone fracture according to claim 1, characterized in that the bone needle damping mechanism (22) further comprises a circular cover (221) connected with the sliding seat (21) and having one open end, the bone needle through hole (2211) is located on an end plate of the circular cover (221), and a damping component with adjustable damping force is arranged in the circular cover (221).

3. The traction device for transverse reduction of bone fracture according to claim 2, wherein the damping component comprises a plurality of arc-shaped clamping elastic sheets (222) and a pull rope (223), the arc-shaped clamping elastic sheets (222) are distributed in a ring shape, one end of each arc-shaped clamping elastic sheet (222) is close to the corresponding spicule through hole (2211), the other end of each arc-shaped clamping elastic sheet (222) passes through a corresponding strip-shaped groove (2212) on the side wall of the circular cover (221) and then is connected with the pull rope (223), the inner side surface of each arc-shaped clamping elastic sheet (222) is in contact with the spicule (4), and one end of the pull rope (223) is fixedly connected with a screw (224) arranged on the outer side of the circular cover (221.

4. The traction device for the transverse reduction of bone fracture according to claim 1, wherein the sliding base (21) comprises a sliding sleeve (211) which is in sliding fit with the long plate (1), the spicule damping mechanism (22) is fixedly arranged on the sliding sleeve (211), two floating locking blocks (212) are respectively arranged on two inner walls of the sliding sleeve (211), the latch of each locking block (212) is engaged with the convex teeth (11) on the corresponding side surface of the long plate (1) under the action of the corresponding first pushing spring (213) to limit and fix the needle fixing seat (2), and the through hole (214) is positioned at the top of the sliding sleeve (211).

5. The traction device for the transverse reduction of bone fracture according to claim 4 is characterized in that the angle fine adjustment seat (3) comprises a sliding seat (21), a portal frame (31) fixedly arranged on the sliding seat (21), an elastic clamping component arranged in the portal frame (31) and a lifting component arranged in a clamping port of the elastic clamping component, the lifting component comprises a rotatable rotating shaft (35), a bone pin through hole (351) is formed in the rotating shaft (35), a bone pin (4) is locked in position by using an extrusion bolt (352) arranged on the rotating shaft (35), and a locking bolt (36) arranged on the portal frame (31) is used for locking the rotating shaft (35).

6. The transverse fracture reduction traction device according to claim 5, wherein the elastic clamping assembly comprises two wedge blocks (32) which are symmetrically arranged, the wedge blocks (32) are arranged in corresponding limiting sliding grooves (311) on the inner side wall of the portal frame (31), the two wedge blocks (32) are close to each other through a plurality of second pushing springs (33), the inclined ends of two support rods (34) of the lifting assembly are respectively attached to the wedge faces of the corresponding wedge blocks (32), the support rods (34) move up and down along the limiting sliding grooves (311), and the other ends of the support rods (34) are pivoted with the rotating shaft (35).

7. The device for the transverse reduction and distraction of bone fractures according to claim 5, characterized in that said rotating shaft (35) is polygonal prism, said locking bolt (36) being pressed against the corresponding side of said rotating shaft (35).

8. The lateral reduction traction device of the fracture according to claim 1, characterized in that the retractable sleeve (5) comprises an outer cylinder (51) and an inner cylinder (52), wherein the inner thread on one end of the outer cylinder (51) is in threaded connection with the outer thread on one end of the inner cylinder (52), and the inner hole diameter of the outer cylinder (51) is the same as the inner hole diameter of the inner cylinder (52).

9. The transverse reduction traction device for bone fracture according to claim 1, characterized in that the end of the spicule (4) close to the bone fracture is provided with an annular baffle, and the distance between the annular baffle and the end of the spicule (4) is 1 cm.

Technical Field

The invention relates to a medical instrument, in particular to a transverse reduction traction device for fracture.

Background

As the frequency of accidents is greatly increased along with the development of economy, such as building sites, vehicle traffic and the like, the number of patients with fractures is continuously increased, the far ends and the near ends of fractures after a plurality of bone fractures are usually staggered and twisted in the operation clinic of treating long bone fractures in the orthopedics department, doctors can only shorten and reset the fracture parts in the axial direction by using the conventional axial traction device, but can not rotationally adjust the twisted broken bones, so that the optimal reset effect can not be achieved, and the reset traction device with the rotation adjusting function has a complex structure and is not easy to operate. At present, no simple, effective and convenient traction device for aligning and resetting the fractured long bone with staggering and torsion exists.

Disclosure of Invention

The invention aims to provide a transverse reduction traction device for fracture, which solves the defects of complex structure, inconvenient use, poor effect and the like of the existing device.

In order to solve the technical problems, the invention provides the following technical scheme:

a fracture transverse reduction traction device, comprising:

a long plate;

the bone needles for transverse resetting penetrate through bone needle holes of the bone needle damping mechanism and then are connected with the needle fixing seats in a locking mode through hole needle seats arranged at through holes of the sliding seats;

the angle fine adjustment seat is connected with the tail end of a bone needle obliquely arranged on the bone, and the broken bone is rotationally adjusted by adjusting the oblique angle of the obliquely arranged bone needle;

the telescopic sleeves are sleeved on the corresponding bone pins and are positioned between the long plate and the bone.

Furthermore, spicule damping mechanism still include with the slide is connected and the open circular cover of one end, the spicule perforation is located on the end plate of circular cover, be equipped with damping force adjustable damping components in the circular cover.

Furthermore, the damping assembly comprises a plurality of arc-shaped clamping elastic sheets and a pull rope, the arc-shaped clamping elastic sheets are distributed in an annular mode, one ends of the arc-shaped clamping elastic sheets are close to the bone needle through holes, the other ends of the arc-shaped clamping elastic sheets penetrate through corresponding strip-shaped grooves in the side wall of the circular cover and then are connected with the pull rope, the inner side faces of the arc-shaped clamping elastic sheets are in contact with the bone needle, and one ends of the pull rope are fixedly connected with screws arranged on the outer side of the circular cover.

Further, the slide include with long board sliding fit's sliding sleeve, spicule damping mechanism is fixed to be set up on the sliding sleeve, respectively set up a unsteady locking piece on two inner walls of sliding sleeve, the latch of locking piece corresponds under the effect that first bulldozes the spring with be located protruding tooth meshing on the long board corresponds the side is right the needle fixing base carries out spacing fixed, the through-hole is located the top of sliding sleeve.

Further, the angle fine setting seat includes the slide, fixes the setting and is in portal frame, setting on the slide are in elasticity centre gripping subassembly and setting in the portal frame are in the intraoral elevating system of centre gripping of elasticity centre gripping subassembly, elevating system includes rotatable pivot, be equipped with the spicule via hole in the pivot, the utilization sets up epaxial extrusion bolt carries out the position locking to the spicule, sets up locking bolt on the portal frame is used for right the pivot locking.

Further, elasticity centre gripping subassembly is including two wedge blocks that the symmetry set up, the wedge block sets up and is being located in the spacing spout of correspondence on the inside wall of door shape frame, a plurality of seconds bulldoze the spring and make two wedge blocks be close to each other, the inclined plane end of two bracing pieces of lifting unit laminates with the scarf of the wedge block that corresponds respectively, just the bracing piece is followed spacing spout reciprocates, the other end of bracing piece with the pivot pin joint.

Furthermore, the rotating shaft is a polygon prism, and the locking bolt is pressed against the corresponding side face of the rotating shaft.

Further, telescopic tube includes urceolus and inner tube, is located urceolus one end internal thread with be located the outer screw thread threaded connection of inner tube one end, the hole diameter of urceolus with the hole diameter of inner tube is the same.

Furthermore, an annular baffle is arranged at one end of the spicule close to the fracture, and the distance between the annular baffle and the end part of the spicule is 1 cm.

According to the technical scheme, the invention has the following beneficial effects:

because the bone needle needs to be driven into the bone before fixation during operation, the sliding seat can be adjusted randomly according to the position of the bone needle, so that the use is convenient, and the bad resetting effect caused by bending the bone needle in a horizontal plane is avoided;

because the spicule damping mechanism is arranged, secondary damage caused by correction transition due to overlarge force of drawing the spicule is avoided;

the angle fine adjustment seat is matched with the horizontally arranged spicules to adjust the inclination angle of the obliquely arranged spicules and fix the obliquely arranged spicules, so that the twisting reset of the bone can be realized, the operation is convenient, and the structure is simple;

because the angle fine adjustment seat and the needle fixing seat are mutually independent, the angle fine adjustment seat and the needle fixing seat can be used in a matched mode, the transverse reduction traction of the fracture part can be completed only by using the needle fixing seat, and the use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a top view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic structural view of the needle holder of the present invention.

Fig. 4 is a front view of the bone pin damping mechanism of the pin holder of the present invention.

Fig. 5 is a schematic structural view of the angle fine adjustment seat of the present invention.

Fig. 6 is a schematic structural view of the retractable sleeve of the present invention.

Description of reference numerals: the bone needle comprises a long plate 1, a convex tooth 11, a needle fixing seat 2, a sliding seat 21, a sliding sleeve 211, a locking block 212, a first pushing spring 213, a through hole 214, a bone needle damping mechanism 22, a circular cover 221, a bone needle through hole 2211, a strip-shaped groove 2212, an arc-shaped clamping elastic sheet 222, a pull rope 223, a screw 224, an angle fine adjustment seat 3, a portal frame 31, a limit sliding groove 311, a wedge block 32, a second pushing spring 33, a support rod 34, a rotating shaft 35, a bone needle through hole 351, an extrusion bolt 352, a locking bolt 36, a bone needle 4, a telescopic sleeve 5, an outer cylinder 51 and an inner cylinder 52.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring now to fig. 1-6, the present application will be further described, wherein a fracture lateral reduction distraction device, as shown in fig. 1 and 2, comprises: the bone fracture reduction device comprises a long plate 1, a plurality of needle fixing seats 2 arranged on the long plate 1, at least one angle fine adjustment seat 3 arranged on the long plate 1 and a plurality of telescopic sleeves 5, wherein all the needle fixing seats 2 are distributed on two sides of a fracture line, each needle fixing seat 2 comprises a sliding seat 21 with adjustable position and a bone fracture damping mechanism 22 fixedly arranged on the sliding seat 21, and a bone fracture 4 for transverse reduction is connected with the needle fixing seats 2 in a locking way by utilizing hole needle seats arranged at through holes 214 of the sliding seat 21 after penetrating through bone fracture through holes 2211 of the bone fracture damping mechanism 22; the angle fine adjustment seat 3 is connected with the tail end of a bone needle 4 obliquely arranged on the bone, and the broken bone is rotationally adjusted by adjusting the inclination angle of the obliquely arranged bone needle 4; the telescopic sleeve 5 is sleeved on the corresponding bone needle 4, and the telescopic sleeve 5 is positioned between the long plate 1 and the bone.

Because spicule 4 is softer, therefore during the use, the spicule 4 through pull and bone connection makes the fracture end of one side broken bone to long plate 1 is close to, and the length through adjustment scalable sleeve pipe 5 increases the distance between long plate 1 and the bone, and then makes the fracture end of broken bone keep away from long plate 1, and then realizes that the horizontal position adjustment of broken bone makes the effectual concatenation of fracture terminal surface together, when the broken bone has the torsion, transversely resets and pulls after making the broken bone twist the reduction through spicule 4 of slope setting that operation and angle fine setting seat 3 are connected, makes to reset effectually.

When the broken bones at two ends need to be twisted and reset, two angle fine adjustment seats 3 are needed.

As shown in fig. 3, the sliding base 21 includes a sliding sleeve 211 in sliding fit with the long plate 1, the spicule damping mechanism 22 is fixedly disposed on the sliding sleeve 211, two inner walls of the sliding sleeve 211 are respectively provided with a floating locking block 212, the latch of the locking block 212 is engaged with the convex teeth 11 on the corresponding side of the long plate 1 under the action of the corresponding first pushing spring 213 to limit and fix the needle fixing base 2, the through hole 214 is located at the top of the sliding sleeve 211, when the sliding sleeve 211 is moved, the locking block 212 is contracted under the extrusion force of the convex teeth 11, the latch of the locking block 212 is re-engaged when passing over the corresponding convex teeth 11, and the position adjustment is convenient.

As shown in fig. 4, the spicule damping mechanism 22 further includes a circular cover 221 connected to the sliding base 21 and having an open end, the spicule through hole 2211 is located on an end plate of the circular cover 221, a damping assembly with adjustable damping force is disposed in the circular cover 221, the damping assembly includes a plurality of arc-shaped clamping elastic pieces 222 and a pull rope 223, the arc-shaped clamping elastic pieces 222 are distributed in a ring shape, one end of each arc-shaped clamping elastic piece 222 is close to the spicule through hole 2211, the other end of each arc-shaped clamping elastic piece 222 passes through a corresponding strip-shaped groove 2212 disposed on a side wall of the circular cover 221 and then is connected to the pull rope 223, an inner side surface of each arc-shaped clamping elastic piece 222 is in contact with the spicule 4, one end of the pull rope 223 is fixedly connected to a screw 224 disposed on an outer side of the circular cover 221, the arc-shaped clamping elastic pieces 222 always act, through rotating screw 224 drags or releases stay cord 223, and then realizes the deformation of arc centre gripping shell fragment 222, increases the resistance of applying on spicule 4 and avoids spicule 4 to adjust the transition suddenly and cause secondary damage, can adjust the damping force that corresponds according to the operator of difference, and the suitability is strong.

As shown in fig. 5, the angle fine-tuning seat 3 includes a sliding seat 21, a door-shaped frame 31 fixedly disposed on the sliding seat 21, an elastic clamping assembly disposed in the door-shaped frame 31, and a lifting assembly disposed in a clamping opening of the elastic clamping assembly, the elastic clamping assembly includes two wedge-shaped blocks 32 symmetrically disposed, the wedge-shaped blocks 32 are disposed in corresponding limiting sliding grooves 311 disposed on an inner side wall of the door-shaped frame 31, the two wedge-shaped blocks 32 are close to each other by a plurality of second pushing springs 33, the lifting assembly includes two supporting rods 34 and a rotatable rotating shaft 35, an inclined end of each supporting rod 34 is attached to a wedge surface of the corresponding wedge-shaped block 32, the supporting rods 34 move up and down along the limiting sliding grooves 311, the other end of each supporting rod 34 is pivotally connected to one end of the rotating shaft 35, a spicule through hole 351 is disposed on the rotating shaft 35, the spicule 4 passes through the spicule through hole 351, the horizontal reduction spicule 4 and the torsion reduction spicule 4 are required to be matched and adjusted during torsion reduction, the spicule 4 is enabled to rotate upwards or downwards by adjusting the height position of the rotating shaft 35, the position of the spicule 4 is locked by an extrusion bolt 352 arranged on the rotating shaft 35 after adjustment is completed, and a locking bolt 36 arranged on the portal frame 31 is used for locking the rotating shaft 35.

The rotating shaft 35 is a polygonal column, and the locking bolt 36 is pressed against the corresponding side surface of the rotating shaft 35 to prevent the rotating shaft 35 from rotating randomly.

As shown in fig. 6, the retractable sleeve 5 includes an outer cylinder 51 and an inner cylinder 52, an internal thread at one end of the outer cylinder 51 is in threaded connection with an external thread at one end of the inner cylinder 52, the inner hole diameter of the outer cylinder 51 is the same as the inner hole diameter of the inner cylinder 52, when adjustment is needed, the outer cylinder 51 or the inner cylinder 52 is rotated to enable two ends of the retractable sleeve 5 to respectively press against the corresponding circular cover 221 and the annular baffle of the spicule 4, the annular baffle is arranged at one end of the spicule 4 close to fracture, and the distance between the ends of the spicule 4 is 1cm, so that the spicule 4 is prevented from being driven too deeply.

In this application, because scalable sleeve 5 with spicule 4 mutual independence, because spicule 4 intensity is not enough, so need bear the spicule 4 of thrust all the cover and be equipped with scalable sleeve 5, and bear tensile spicule 4 and do not need, can confirm according to the in-service use condition scalable sleeve 5's quantity.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.