CN216060701U - Lower limb traction device - Google Patents

Abstract

The utility model provides a lower limb traction device, which comprises an angulation displacement device used for displacement correction in the axial direction of broken bones, wherein the angulation displacement device comprises a third Kirschner wire, a hook claw, a movement locking device, a connecting rod and a fixed frame, the movement locking device comprises a movement seat and a track, the movement seat can move and can be locked on the track, the hook end of the hook claw is hooked on the third Kirschner wire, the other end of the hook claw is fixedly arranged on the movement seat of the movement locking device, one end of the track is connected with the connecting rod, and the other end of the connecting rod is connected with the fixed frame. Can be accurate when using the device pull be convenient for reset, need not medical personnel to maintain at the scene when the perspective of in-process that resets, reduce the injury of radiation to medical personnel, can keep the state after resetting for a long time can not take place to change the fixed operation in convenient later stage after resetting successfully.

Description

Lower limb traction device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a lower limb traction device.

Background

At present, fracture reduction operation intra-operative traction mainly depends on a doctor to pull apart a fracture surface by bare hands, and after manual reduction, "point type reduction forceps" are selected for temporary fixation, the structure of the "point type reduction forceps" is similar to that of sharp-nosed pliers, and the position of the sharp-nosed pliers is in a eagle-nose type needle point shape. Rely on current means of resetting, bare-handed stretching is hard and stability is relatively poor, and it is unstable to fix temporarily after resetting, needs medical personnel to keep the state of resetting to see through at the in-process that resets simultaneously, and the radiation produces the injury to medical personnel easily.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a lower limb traction apparatus, which can accurately perform traction during use to facilitate resetting, does not require medical staff to maintain on site during fluoroscopy during resetting, reduces radiation injury to medical staff, and can maintain the reset state for a long time after resetting is successful without changing to facilitate later fixing operation.

The utility model solves the technical problems by the following technical means: the utility model provides a lower limb traction device, which comprises an angulation displacement device used for displacement correction in the axial direction of broken bones, wherein the angulation displacement device comprises a third Kirschner wire, a hook claw, a movement locking device, a connecting rod and a fixed frame, the movement locking device comprises a movement seat and a track, the movement seat can move and can be locked on the track, the hook end of the hook claw is hooked on the third Kirschner wire, the other end of the hook claw is fixedly arranged on the movement seat of the movement locking device, one end of the track is connected with the connecting rod, and the other end of the connecting rod is connected with the fixed frame.

Further, still including the side shifting device that is used for disconnected bone side to shift and corrects, side shifting device includes first support and second support, the setting that first support length direction removed can be followed to the second support is on first support, the one end of first support is provided with the first kirschner wire other end and is provided with the screw hole, the one end of second support is provided with the second kirschner wire other end and is provided with the screw rod with screw hole assorted, screw rod circumferential direction rotates the setting of axial fixity on the second support.

Further, be provided with the rack along length direction on the track, it establishes on the track to remove the seat cover, it is provided with a gear to rotate through the pivot on the track, gear and rack toothing, be provided with the actuating lever on removing the seat, the actuating lever rotates with the gear is coaxial to be set up on removing the seat, it is provided with the drive block to rotate on the actuating lever, it is provided with the locking piece to rotate on removing the seat, drive block and locking piece set up the periphery department at the gear respectively, the cover is equipped with the torsional spring respectively in the axis of rotation of drive block and locking piece for dop to the card on the locking piece prevent that the gear from reversing on the gear tooth, the drive head butt on the drive block is on the gear tooth, drives drive block drive gear through the actuating lever and rotates to make the movable block remove on the track.

Furthermore, collude the claw and set up to "7" font or style of calligraphy, the long limit tip that the claw was colluded to "7" font or style of calligraphy is fixed on removing the seat, collude the claw and be provided with two, two long limits that collude the claw are "eight" font setting, just collude the claw with the actuating lever sets up respectively in the both sides that remove the seat.

Further, the connecting rod includes first connecting rod and second connecting rod, the one end of first connecting rod is fixed to be set up on the movable block, the other end of first connecting rod passes through the articulated shaft with the one end of second connecting rod and is connected, the other end of second connecting rod is fixed to be set up on the mount, the one end of articulated shaft is provided with the perineum post.

Further, the first connecting rod is made of non-metal materials.

Furthermore, a sliding groove is formed in the first support along the length direction, and a sliding block matched with the sliding groove is arranged on the second support.

Further, first connecting rod is kept away from screw hole one end and is provided with first slide bar, be provided with first clamping part on the first slide bar, first clamping part detachable fixed mounting is on first slide bar, be provided with first clamping part on the first clamping part, first ke shi needle is fixed on first clamping part through first clamping part detachable, the screw rod one end is kept away from to the second connecting rod is provided with the second slide bar, be provided with the second holder on the second slide bar, second holder detachable fixed mounting is on the second slide bar, be provided with the second clamping part on the second holder, the second ke shi needle passes through second clamping part detachable and fixes on the second holder.

According to the technical scheme, the utility model has the beneficial effects that: the utility model provides a lower limb traction device, which comprises an angulation displacement device used for displacement correction in the axial direction of broken bones, wherein the angulation displacement device comprises a third Kirschner wire, a hook claw, a movement locking device, a connecting rod and a fixed frame, the movement locking device comprises a movement seat and a track, the movement seat can move and can be locked on the track, the hook end of the hook claw is hooked on the third Kirschner wire, the other end of the hook claw is fixedly arranged on the movement seat of the movement locking device, one end of the track is connected with the connecting rod, and the other end of the connecting rod is connected with the fixed frame. Can be accurate when using the device pull be convenient for reset, need not medical personnel to maintain at the scene when the perspective of in-process that resets, reduce the injury of radiation to medical personnel, can keep the state after resetting for a long time can not take place to change the fixed operation in convenient later stage after resetting successfully.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a perspective view of a lower limb traction apparatus according to the present invention;

FIG. 2 is a perspective view of an angular displacement device of the lower limb traction device provided in accordance with the present invention;

FIG. 3 is a cross-sectional view of a movement locking device of the lower limb traction device provided by the present invention;

fig. 4 is a perspective view of a lateral shifting device of the lower limb traction device according to the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

reference numerals:

1-an angular displacement device; 2-lateral displacement means; 3-breaking the bone; 11-a third k-wire; 12-hook claw; 13-moving the locking means; 14-a first link; 15-a second link; 16-a fixing frame; 17-perineal column; 131-a movable seat; 132-a track; 21 a first bracket; 22-a second support; 211-a threaded hole; 221-screw; 1321-rack; 1311-gear; 1312-a drive rod; 1313-drive block; 1314-locking block; 212-a chute; 222-a slider; 213-a first slide bar; 214-a first clamping portion; 215-first k-wire; 223-a second slide bar; 224-a second grip; 225-second k-wire; 226-stop.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 5, the present invention provides a lower limb traction device, including an angulation displacement device 1 for displacement correction in an axial direction of a fractured bone 3, where the angulation displacement device 1 includes a third k-wire 11, a hook 12, a movement locking device 13, a connecting rod and a fixed frame 16, the movement locking device 13 includes a movement seat 131 and a rail 132, the movement seat 131 is movable and lockable on the rail 132, a hook end of the hook 12 is hooked on the third k-wire 11, the other end of the hook 12 is fixedly disposed on the movement seat 131 of the movement locking device 13, one end of the rail 132 is connected with the connecting rod, and the other end of the connecting rod is connected with the fixed frame 16. The angulation displacement device 1 is arranged, the third Kirschner wire 11 is fixed on one section of the broken bone 3, the hook claw 12 hooks or pushes the third Kirschner wire 11, meanwhile, the locking device 13 can be moved by one section and locked after displacement to prevent the third Kirschner wire from returning, and the fracture of the broken two sections of broken bones 3 is close to complete resetting. The device is generally used for traction reduction of femoral fractures.

As a further improvement to the above technical solution, the lateral displacement device 2 for lateral displacement correction of the fractured bone 3 is further included, the lateral displacement device 2 includes a first support 21 and a second support 22, the second support 22 is movably disposed on the first support 21 along the length direction of the first support 21, one end of the first support 21 is provided with a first kirschner wire 215, the other end of the first kirschner wire is provided with a threaded hole 211, one end of the second support 22 is provided with a second kirschner wire 225, the other end of the second kirschner wire is provided with a screw 221 matched with the threaded hole 211, and the screw 221 is circumferentially rotated and axially fixed and disposed on the second support 22. The arrangement of the lateral displacement device 2 facilitates the reduction of the broken fractured bone 3 in a lateral position; when the bone resetting device is used, the first Kirschner wire 215 and the second Kirschner wire 225 are respectively fixed on the two disconnected broken bones 3, and the two Kirschner wires move relatively by rotating the screw rod 221 so as to enable the axes of the two disconnected broken bones 3 to approach each other until the axes coincide with each other to achieve the purpose of resetting.

As a further improvement to the above technical solution, a rack 1321 is disposed on the rail 132 along the length direction, the movable seat 131 is sleeved on the rail 132, a gear 1311 is rotatably disposed on the rail 132 through a rotating shaft, the gear 1311 is engaged with the rack 1321, a driving rod 1312 is disposed on the movable seat 131, the driving rod 1312 and the gear 1311 are coaxially and rotatably disposed on the movable seat 131, a driving block 1313 is rotatably disposed on the driving rod 1312, a locking block 1314 is rotatably disposed on the movable seat 131, the driving block 1313 and the locking block 1314 are respectively disposed at the outer edge of the gear 1311, torsion springs are respectively sleeved on the rotating shafts of the driving block 1313 and the locking block 1314, so that the chuck on the locking block 1314 is clamped on the teeth of the gear 1311 to prevent the gear 1311 from rotating reversely, the driving head on the driving block 1313 abuts on the teeth of the gear 1311, the driving block 1313 is driven to rotate by the driving rod 1312, thereby causing the traveling block to travel on the track 132.

Through setting up gear 1311 and rack 1321 meshing, drive gear 1311 through rocking actuating lever 1312 and rotate the removal that realizes moving seat 131 to drive the removal that colludes claw 12 pulling third kirschner wire 11, fall to one side of locking block with actuating lever 1312 when the return, swing locking block makes the dop of locking block break away from gear 1311, makes gear 1311 can only rotate on rack 1321 and pull drive block 1313 and conveniently realize moving seat 131's return.

As a further improvement of the above technical solution, the hook 12 is arranged in a shape like a letter "7" or a straight line, the end of the long side of the hook 12 in the shape like a letter "7" or a straight line is fixed on the moving seat 131, two hook 12 are arranged, the long sides of the two hook 12 are arranged in a shape like a Chinese character 'ba', and the hook 12 and the driving rod 1312 are respectively arranged at two sides of the moving seat 131. The hook claw 12 is arranged to be 7-shaped or straight-line-shaped, so that the hook or the hook is abutted against the third Kirschner wire 11 to pull the broken bone 3 to move, and meanwhile, the two hooks are arranged to be splayed, so that the legs of the patient can be placed between splayed openings, and the resetting is more convenient.

As a further improvement to the above technical solution, the connecting rod includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly disposed on the moving block, the other end of the first connecting rod is hinged to one end of the second connecting rod through a hinge shaft, the other end of the second connecting rod is fixedly disposed on the fixing frame 16, and one end of the hinge shaft is provided with a perineum column 17. Through setting up first connecting rod and second connecting rod to with first connecting rod and second connecting rod hinged joint, make can change the angle between first connecting rod and the second connecting rod, be convenient for be applicable to different patients. The perineum column 17 is arranged on the articulated shaft, and when in use, the perineum column 17 is pressed on the perineum area of a patient to bear force so as to move the locking block 1314.

As a further improvement to the above technical solution, the first connecting rod 14 is made of a non-metal material. The first link 14 is made of a non-metallic material that is not developable by X-rays, so that development is not disturbed.

As a further improvement to the above technical solution, a sliding groove 212 is arranged on the first bracket 21 along the length direction, and a sliding block 222 matched with the sliding groove 212 is arranged on the second bracket 22. Preferably, a stop 226 is disposed on the sliding block 222, so that the sliding block 222 can be clamped on the sliding groove 212 and cannot fall off, and by disposing the sliding groove 212 and the sliding block 222 matched with the sliding groove 212, the second bracket 22 can move on the first bracket 21 to change the position and cannot fall off, and the second bracket cannot move to change the reset state after being stressed.

As a further improvement to the above technical solution, one end of the first connecting rod 14, which is far away from the threaded hole 211, is provided with a first sliding rod 213, the first sliding rod 213 is provided with a first clamping portion, the first clamping portion is detachably and fixedly mounted on the first sliding rod 213, the first clamping portion is provided with a first clamping portion 214, the first k-wire 215 is detachably and fixedly mounted on the first clamping portion through the first clamping portion 214, one end of the second connecting rod 15, which is far away from the screw 221, is provided with a second sliding rod 223, the second sliding rod 223 is provided with a second clamping member, the second clamping member is detachably and fixedly mounted on the second sliding rod 223, the second clamping member is provided with a second clamping portion 224, and the second k-wire 225 is detachably and fixedly mounted on the second clamping member through the second clamping portion 224. Through setting up first slide bar 213, first clamping part, second slide bar 223 and second clamping part for can change the length position of first kirschner wire 215 and second kirschner wire 225 as required, so that be applicable to the use of different fracture deformation operations, make it have better suitability, be convenient for the dismantlement change use of first kirschner wire 215 and second kirschner wire 225 simultaneously.

When the device is used, the fixing frame 16 is fixed on an operating bed, a patient lies on the device, the perineal column 17 is pressed on the perineal area of the patient to be stressed conveniently, then the third Kirschner wire 11 penetrates through the broken bone 3 at one broken end, the two hook claws 12 are respectively hooked at two ends of the third Kirschner wire 11, and the broken bone 3 is pulled to move by adjusting the position of the movable locking block 1314 on the rail 132, so that the broken ports of the broken bone 3 at two broken ends can be positioned on the same plane; then, the second kirschner wire 225 and the third kirschner wire 11 are respectively inserted into the two sections of the fractured bones 3 at the fractured opening position and are fixed on the fractured bones 3, and the first connecting rod 14 and the second connecting rod 15 move close to each other in the length direction by rotating the screw rod 221, so that the two staggered sections of the fractured bones 3 are reset to be aligned; after the reduction is completed, an intramedullary nail or a bracket is driven into the intramedullary nail or the bracket for fixation.

Can be accurate when using the device pull be convenient for reset, need not medical personnel to maintain at the scene when the perspective of in-process that resets, reduce the injury of radiation to medical personnel, can keep the state after resetting for a long time can not take place to change the fixed operation in convenient later stage after resetting successfully.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (8)

1. A lower limb traction device is characterized in that: including angulation shifter (1) that is used for disconnected bone (3) axis direction to shift correction, angulation shifter (1) includes third kirschner wire (11), colludes claw (12), removes locking means (13), connecting rod and mount (16), remove locking means (13) including removing seat (131) and track (132), it is portable and lockable on track (132) to remove seat (131), collude the couple end of claw (12) and collude on third kirschner wire (11), the other end of colluding claw (12) is fixed to be set up on removing seat (131) that remove locking means (13), the one end and the connecting rod of track (132) are connected, the other end and the mount (16) of connecting rod are connected.

2. The lower limb traction device of claim 1, wherein: still including side shifter (2) that are used for disconnected bone (3) side to shift and correct, side shifter (2) include first support (21) and second support (22), the setting that first support (21) length direction removed can be followed in second support (22) is on first support (21), the one end of first support (21) is provided with first kirschner wire (215) other end and is provided with screw hole (211), the one end of second support (22) is provided with second kirschner wire (225) other end and is provided with screw rod (221) with screw hole (211) assorted, screw rod (221) circumferential direction axial fixity's setting is on second support (22).

3. The lower limb traction device of claim 1, wherein: a rack (1321) is arranged on the track (132) along the length direction, the moving seat (131) is sleeved on the track (132), a gear (1311) is rotatably arranged on the track (132) through a rotating shaft, the gear (1311) is meshed with the rack (1321), a driving rod (1312) is arranged on the moving seat (131), the driving rod (1312) and the gear (1311) are coaxially and rotatably arranged on the moving seat (131), a driving block (1313) is rotatably arranged on the driving rod (1312), a locking block (1314) is rotatably arranged on the moving seat (131), the driving block (1313) and the locking block (1314) are respectively arranged at the outer edge of the gear (1311), torsion springs are respectively sleeved on the rotating shafts of the driving block (1313) and the locking block (1314) to enable a clamping head on the locking block (1314) to be clamped on teeth of the gear (1311) to prevent the gear (1311) from being inverted, the driving head on the driving block (1313) abuts against the teeth of the gear (1311), and the driving block (1313) is driven by the driving rod (1312) to drive the driving gear (1311) to rotate, so that the moving block moves on the track (132).

4. The lower limb traction device of claim 3, wherein: the hook claws (12) are arranged in a 7 shape or a straight shape, the end parts of the long sides of the 7-shaped or straight-shaped hook claws (12) are fixed on the movable seat (131), the number of the hook claws (12) is two, the long sides of the two hook claws (12) are arranged in a splayed shape, and the hook claws (12) and the driving rod (1312) are respectively arranged on two sides of the movable seat (131).

5. The lower limb traction device of claim 2, wherein: the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly arranged on the moving block, the other end of the first connecting rod is hinged to one end of the second connecting rod through a hinge shaft, the other end of the second connecting rod is fixedly arranged on the fixing frame (16), and a perineum column (17) is arranged at one end of the hinge shaft.

6. The lower limb traction device of claim 5, wherein: the first connecting rod (14) is made of non-metal materials.

7. The lower limb traction device of claim 2, wherein: a sliding groove (212) is formed in the first support (21) along the length direction, and a sliding block (222) matched with the sliding groove (212) is arranged on the second support (22).

8. The lower limb traction device of claim 5, wherein: screw hole (211) one end is kept away from in first connecting rod (14) and is provided with first slide bar (213), be provided with first clamping part on first slide bar (213), first clamping part detachable fixed mounting is on first slide bar (213), be provided with first clamping part (214) on the first clamping part, first ke shi needle (215) are fixed on first clamping part through first clamping part (214) detachable, screw rod (221) one end is kept away from in second connecting rod (15) is provided with second slide bar (223), be provided with the second holder on second slide bar (223), second holder detachable fixed mounting is on second slide bar (223), be provided with second clamping part (224) on the second holder, second ke shi needle (225) are fixed on the second holder through second clamping part (224) detachable.

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