CN209984279U

CN209984279U - Fracture traction reduction device

Info

Publication number: CN209984279U
Application number: CN201920495915.2U
Authority: CN
Inventors: 陈聚伍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-01-24
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a fracture traction reduction device, which comprises a near-end steel ring, a far-end steel ring and an adjusting steel ring between the near-end steel ring and the far-end steel ring which are arranged in parallel, a near-end cross nail and an upper and lower adjusting nail rod, wherein the near-end cross nail is used for fixing the root of a broken bone, and the upper and lower adjusting nail rod is used for fixing the far end of the broken bone; the near-end cross nail is connected to the near-end steel ring through a fixing piece, so that the near-end steel ring and the root of the broken bone are fixed together, and the near-end steel ring and the far-end steel ring are fixed together through a connecting rod; the utility model discloses can realize standardization and high accuracy regulatory function, can realize the function that the extension of fracture position, rotation (corner), about from top to bottom translation aim at and the butt joint that resets, it is high to receive each steel part support stability degree after the seam butt joint, the follow-up operation of being convenient for. The operation is simple and easy to implement, the accuracy is very high, the operation difficulty and the docking inaccuracy of the operation are reduced, the operation and the use of doctors in each level are suitable after simple training, and a basis is provided for standardized operation of fracture positioning.

Description

Fracture traction reduction device

Technical Field

The utility model belongs to the technical field of fracture location fixing apparatus, concretely relates to can carry out the fixed fracture position resetting means of multistep compound regulation accurately.

Background

Femoral shaft fractures and distal femoral fractures are common fractures in clinical practice. Surgical treatment is the preferred treatment method, and reduction butt joint and fixation are firstly carried out on two ends of a fracture part before intramedullary nail fixation and bone plate fixation are carried out. Traction is an important means for reducing femoral fracture and recovering the length of lower limbs. At present, a tractor used for the reduction of lower limb fracture patients in each hospital mainly comprises a traction rope and a pulley, one end of the traction rope is connected with a bracket at the fracture part, and the other end of the traction rope bypasses the pulley to suspend weights, and traction force is controlled by increasing the number of the weights or changing the weight of the weights manually. The patient lies in the sickbed and can move and bounce, so that the traction force is changed, and once the traction force is changed, the weight of the weight is adjusted. For the existing manual control method, the frequent replacement of the weights is very inconvenient, which not only increases the burden on the nursing staff in the hospital, but also brings trouble to the reduction of the fracture patient. On the other hand, because the one end of haulage rope is connected the fracture position distal end, and needs the traction dynamics great, leads to the fracture distal end to be followed the haulage rope direction only, and fracture distal end and near-end have crisscross and twist reverse the condition usually after the fracture, belongs to the rigidity through the mode of drawing the fracture distal end among the prior art and pulls, is difficult for rotating and swing the fracture to can't reach the best effect that resets.

SUMMERY OF THE UTILITY MODEL

Poor or can't realize the problem that arbitrary angle and position control removed to present fracture location fixing device multi-angle regulation flexibility, the utility model provides a can be fit for the arbitrary fracture condition and carry out the resetting means of multistep compound regulation, reach quick and accurate butt joint fracture position, have higher restraint nature to the fracture position to do benefit to and go on smoothly to the follow-up operation in fracture position.

The utility model provides a scheme that its technical problem adopted is: a fracture traction reduction device comprises a near-end steel ring, a far-end steel ring, an adjusting steel ring, a near-end cross nail and an upper and lower adjusting nail rod, wherein the near-end steel ring and the far-end steel ring are arranged in parallel, the near-end cross nail is used for fixing the root of a broken bone, and the upper and lower adjusting nail rod is used for fixing the far end of the broken bone; the near-end cross nail is connected to the near-end steel ring through a fixing piece, so that the near-end steel ring and the root of the broken bone are fixed together, and the near-end steel ring and the far-end steel ring are fixed together through a connecting rod; the adjusting steel ring is provided with adjusting ring arc-shaped holes, the connecting rod penetrates through the adjusting ring arc-shaped holes of the adjusting steel ring, an axial push-pull nut is installed on the connecting rod in a threaded manner, a horizontal seat is transversely installed at the top in the adjusting ring arc-shaped holes, a horizontal flat hole is axially arranged on the horizontal seat, the upper and lower adjusting nail rods are vertically sleeved in the horizontal flat hole, lower end threads of the upper and lower adjusting nail rods are screwed into the far ends of broken bones, the upper and lower adjusting nail rods are fixed in the horizontal flat holes by upper and lower lock wires, a top fixing screw rod is transversely fixed on one side of the horizontal seat, and the top fixing screw rod penetrates through the adjusting ring arc-shaped holes and then is fixed or restrained by a top sliding nut (namely the top fixing screw rod; a pull rod seat is sleeved on the outer side of the up-and-down adjusting nail rod, a pull rod is transversely fixed on the pull rod seat, a movable transverse baffle plate is stacked on the outer side of the far-end steel ring in parallel, a self-adjusting flat hole is formed in the middle of the movable transverse baffle plate, a sliding nut is installed after the pull rod penetrates through the self-adjusting flat hole, and the sliding nut can freely slide in the self-adjusting flat hole; a left adjusting rod and a right adjusting rod are vertically connected to the pull rod seat or the upper adjusting nail rod and the lower adjusting nail rod, the left adjusting nail rod and the right adjusting nail rod are fixed or restrained in a vertical flat hole of a vertical flat seat through left and right lock wires, a lateral fixing screw rod is transversely fixed to one side of the vertical flat seat, and the lateral fixing screw rod is fixed through a lateral sliding nut after transversely penetrating through an arc-shaped hole of an adjusting ring.

The edge of the self-adjusting flat hole in the middle of the movable transverse baffle is provided with a flat chamfer slideway or a spherical concave chamfer slideway, the inner side surface of the sliding nut is spherical, and the spherical surface is in surface contact with the flat chamfer slideway or the spherical concave chamfer slideway and can freely slide.

And the inner side surface of the top sliding nut or the side sliding nut is a spherical surface, and the spherical surface is in surface contact with the arc concave chamfer slide or the arc flat chamfer slide and can freely slide in a non-lock wire state.

The near-end steel ring or the far-end steel ring is provided with an arc-shaped hole, and a fixing piece for fixing the near-end cross nail is fixedly arranged in the arc-shaped hole of the near-end steel ring.

The utility model has the advantages that: the utility model discloses a mode that three parallel steel rings were adjusted can realize standardization and high accuracy regulatory function. And each steel ring does not need auxiliary fixing piece, and the structure is simplified and the use effect is good. The utility model discloses can realize the function that the extension of fracture position, rotation (corner), upper and lower left and right sides translation aimed at and reset the butt joint, it is high to receive each steel part support stability degree after the seam butt joint, the follow-up operation of being convenient for. The utility model discloses adjust easy operation, the precision is very high, reduces the operation degree of difficulty and the butt joint inaccuracy, is fit for each level doctor operation after simple training and uses, also provides the foundation for the standardized operation of fracture location. The utility model discloses simple structure is practical, low cost, and easy batch production makes, and sales prospect is good.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a schematic front structural view of the adjusting steel ring in fig. 1.

Fig. 6 is a schematic view of the cross-sectional structure a-a in fig. 5.

Fig. 7 is a schematic view in elevation and cross-section of a movable cross stop.

Fig. 8 is a front structural view of the vertical seat.

Fig. 9 is a schematic view of a cross-sectional structure B-B in fig. 8.

FIG. 10 is a schematic cross-sectional view of the pull rod seat.

Reference numeral 101 in the figure denotes a proximal steel ring, 102 denotes a proximal steel ring fixing hole, 103 denotes a proximal steel ring arc hole, 201 denotes an adjusting steel ring, 202 denotes an adjusting ring fixing hole, 203 denotes an adjusting ring arc hole, 204 denotes an arc concave chamfered slideway, 205 denotes an arc flat chamfered slideway, 301 denotes a distal steel ring, 302 denotes a distal steel ring fixing hole, 303 denotes a distal steel ring arc hole, 401 denotes a first link, 402 denotes a second link, 403 denotes a third link, 404 denotes a fixing nut, 405 denotes an axial push-pull nut, 501 denotes a proximal traverse pin, 502 denotes a fixing base, 503 denotes a fixing screw, 504 denotes a fixing nut, 601 denotes a lever base, 602 denotes a lever, 603 denotes a movable traverse baffle, 604 denotes a self-adjusting flat hole, 605 denotes a slide nut, 606 denotes a flat chamfered slideway, 701 denotes an up-down adjusting screw rod, 702 denotes a traverse flat base, 703 denotes a traverse flat hole, 704 denotes up-down locking wires, 705 denotes a top fixing screw, 706 denotes a top slide nut, 801 denotes a left-right adjusting rod, 802 is a vertical and flat seat, 803 is a vertical and flat hole, 804 is a left locking wire and a right locking wire, 805 is a side fixing nut, 806 is a side sliding nut, 807 is a baffle plate, 808 is a flat chamfer slideway, 901 is a broken bone root, 902 is a broken bone far end, and 903 is a broken bone seam.

Detailed Description

Example 1: as shown in fig. 1, the fracture traction reduction device is provided with a proximal steel ring 101, an adjusting steel ring 201 and a distal steel ring 301 which are arranged in parallel from inside to outside. The diameters of the three steel rings are equal, and the three steel rings are distributed with fixing holes and arc-shaped holes, namely a near steel ring fixing hole 102, a near steel ring arc-shaped hole 103, an adjusting ring fixing hole 202, an adjusting ring arc-shaped hole 203, a far steel ring fixing hole 302 and a far steel ring arc-shaped hole 303.

Also included is a proximal cross pin 501 which is secured to the fractured bone root 901 near the proximal steel ring, i.e., the proximal cross pin is passed across the fractured bone root as in fig. 1. The near-end cross nail is connected to the near-end steel ring through a fixing piece, the fixing piece comprises a fixing seat as shown in figure 1, a hole is formed in the fixing seat, the near-end cross nail penetrates through the hole of the fixing shaft and then is fixed by a fixing nut, one end of the fixing seat is transversely connected with a fixing screw, and the fixing screw penetrates through an arc-shaped hole of an adjusting ring of the near-end steel ring and then is fixed by the fixing nut. Thereby fixing the proximal steel ring and the root of the broken bone together. Therefore, the near-end steel ring in the embodiment does not need an auxiliary fixing piece, and does not need to be fixedly connected with external equipment such as a bedstead and the like.

The proximal steel ring and the distal steel ring are fixed together by a connecting rod, so that the proximal steel ring and the distal steel ring form a whole. The connecting rod passes through the position of adjusting the steel ring and passes through the arc-shaped hole of the adjusting ring, so that the adjusting steel ring is not influenced to rotate and adjust.

As shown in fig. 1, 2 and 4, a horizontal seat 702 is transversely installed at the top inside the arc-shaped hole of the adjusting ring, a horizontal flat hole 703 is axially arranged on the horizontal seat, a top fixing screw is transversely fixed at one side of the horizontal seat, and the top fixing screw is fixed by a top sliding nut after traversing the top of the arc-shaped hole of the adjusting ring. A vertical and flat seat 802 is transversely installed on the side part in the arc-shaped hole of the adjusting ring, a vertical and flat hole 803 is axially arranged on the vertical and flat seat, a side part fixing screw rod is transversely fixed on one side of the vertical and flat seat, and the side part fixing screw rod is fixed by a side part sliding nut after transversely penetrating through the side part of the arc-shaped hole of the adjusting ring.

An upper adjusting screw rod and a lower adjusting screw rod are vertically sleeved in the horizontal flat hole, and the lower end threads of the upper adjusting screw rod and the lower adjusting screw rod are screwed into the far end of the broken bone, so that the far end of the broken bone and the adjusting ring are fixed into a whole. The upper and lower adjusting screw rods are fixed in the transverse flat holes by the upper and lower locking wires, but the height of the upper and lower adjusting rods can be adjusted after the upper and lower locks are loosened.

In this embodiment, the means for tightening or separating the distance between the adjusting steel ring and the distal steel ring is that a pull rod seat is sleeved outside the upper and lower adjusting nail rods, as shown in fig. 10, and a pull rod is axially fixed on the pull rod seat. Meanwhile, a movable transverse baffle plate is stacked in parallel on the outer side of the distal steel ring as shown in fig. 1 and 3, and can freely slide. And the middle part of the movable transverse baffle is provided with a self-adjusting flat hole, the pull rod traverses the self-adjusting flat hole and is provided with a sliding nut, and the sliding nut can freely slide in the self-adjusting flat hole.

In this embodiment, a left and right adjusting rod 801 is vertically connected to the pull rod base, as shown in fig. 1 and 4, the left and right adjusting nail rod is fixed in the vertical flat hole of the vertical base by a left and right locking screw, a lateral fixing screw is transversely fixed on one side of the vertical base, and the lateral fixing screw is fixed by a lateral sliding nut after traversing through the arc-shaped hole of the adjusting ring.

In the use of the embodiment, the first step is as follows: the three steel rings penetrate through the broken bone area, the appropriate distance between the near-end steel ring and the far-end steel ring is adjusted, the near-end cross nail penetrates through the root of the broken bone, and then the near-end cross nail and the near-end steel ring are fixed together through the fixing piece, so that the root of the broken bone and the near-end steel ring are fixed and integrated. The second step is that: the up-down adjusting screw rod is screwed into the far end of the broken bone along the vertical direction, and the root 901 and the far end 902 of the broken bone are relative to the two ends of the bone seam, so that the far end of the broken bone and the adjusting steel ring are fixed and positioned into a whole. The third step: the sliding nut is screwed to pull the pull rod, so that the steel ring is adjusted to be close to the far-end steel ring, and the far end of the broken bone is separated from the root of the broken bone. The fourth step: the adjusting steel ring is rotated to adjust the bone seam angle of the broken bone to correspond, and the top sliding nut and the side sliding nut need to be loosened respectively at the moment, so that the top fixing screw rod and the side fixing nut can freely slide in the arc-shaped hole of the adjusting ring. When the adjusting steel ring is rotated, the movable transverse baffle can slide on the surface of the far-end steel ring, and the pull rod can slide in the self-adjusting flat hole after being connected with the sliding nut. And then the axial push-pull nuts on the connecting rod are rotated to enable the axial push-pull nuts to tightly press the adjusting steel ring. The tension applied to the adjustment steel ring and the distal steel ring is now transferred from the tension rods to the links. The fifth step: the upper locking wire, the lower locking wire, the left locking wire and the right locking wire are respectively adjusted to control the movement of the upper adjusting screw rod, the lower adjusting screw rod, the left adjusting rod and the right adjusting rod, so that the height translation adjustment and the left translation adjustment of the far end of the broken bone are controlled, the height is simultaneously adjusted, and the far end of the broken bone corresponds to the bone seam of the root of the broken bone. The step simultaneously requires that the top sliding nut and the side sliding nut are adjusted in a locking state, the roots of the screws on one sides of the horizontal seat and the vertical seat are respectively provided with a separation blade, the separation blade of the horizontal seat is matched and locked with the top sliding nut, and the separation blade of the vertical seat is matched and locked with the side sliding nut. And a sixth step: the axial push-pull nuts on the connecting rods are sequentially loosened, the upper locking wire, the lower locking wire, the left locking wire and the right locking wire are properly loosened, so that the adjusting steel ring is far away from the far-end steel ring, namely, the far end of the broken bone is gradually close to and butted with the root of the broken bone, and the restoration is realized. Then, the intramedullary nail or the reinforcing steel plate is implanted in the reduction state.

In order to improve the adjusting performance of the movable transverse baffle, the structure shown in fig. 7 is adopted, a flat chamfer slide 808 or a spherical concave chamfer slide is arranged at the edge of a self-adjusting flat hole in the middle of the movable transverse baffle, the inner side surface of the sliding nut is spherical, and the spherical surface is in surface contact with the flat chamfer slide or the spherical concave chamfer slide and can freely slide.

When rotating the regulation steel ring, for improving the free sliding performance of horizontal flat seat and vertical flat seat, adopt like the structure shown in fig. 5 and fig. 6, be located promptly adjusting the adjustable ring arc hole edge on the steel ring and being provided with the flat chamfer slide of arc concave chamfer slide or arc, the medial surface of top slip nut or lateral part slip nut is the sphere, and sphere and the flat chamfer slide of arc concave chamfer slide or arc surface contact of chamfer slide and can freely slide under the non-lock silk state.

In the last step of resetting, in order to improve the sliding performance of the upper and lower lock wires and the left and right lock wires, structures shown in fig. 8 and 9 are adopted, namely, the edges of the horizontal flat hole and the vertical flat hole which are positioned on the horizontal flat seat or the vertical flat seat are provided with arc-shaped concave chamfer slide ways or arc-shaped flat chamfer slide ways, the inner side surfaces of the upper and lower lock wires and the left and right lock wires are spherical surfaces (the positions can not be spherical surfaces), and the spherical surfaces are in surface contact with the arc-shaped concave chamfer slide ways or the arc-shaped flat chamfer slide ways and can freely slide in a non-lock wire state.

Claims

1. A fracture traction reduction device is characterized by comprising a near-end steel ring, a far-end steel ring, an adjusting steel ring, a near-end cross nail and an up-down adjusting nail rod, wherein the near-end steel ring and the far-end steel ring are arranged in parallel, the adjusting steel ring is arranged between the near-end cross nail and the far-end steel ring, the near-end cross nail is used for fixing the root of a broken bone, and the up-down adjusting nail rod is used for fixing the far; the near-end cross nail is connected to the near-end steel ring through a fixing piece, so that the near-end steel ring and the root of the broken bone are fixed together, and the near-end steel ring and the far-end steel ring are fixed together through a connecting rod; the adjusting steel ring is provided with adjusting ring arc-shaped holes, the connecting rod penetrates through the adjusting ring arc-shaped holes of the adjusting steel ring, an axial push-pull nut is installed on the connecting rod in a threaded manner, a horizontal seat is transversely installed at the top in the adjusting ring arc-shaped holes, a horizontal flat hole is axially arranged on the horizontal seat, the upper and lower adjusting nail rods are vertically sleeved in the horizontal flat hole, lower end threads of the upper and lower adjusting nail rods are screwed into the far ends of broken bones, the upper and lower adjusting nail rods are fixed in the horizontal flat holes through upper and lower lock wires, a top fixing screw rod is transversely fixed on one side of the horizontal seat, and the top fixing screw rod penetrates through the adjusting ring arc-shaped holes and then is fixed or restrained by; a pull rod seat is sleeved on the outer side of the up-and-down adjusting nail rod, a pull rod is transversely fixed on the pull rod seat, a movable transverse baffle plate is stacked on the outer side of the far-end steel ring in parallel, a self-adjusting flat hole is formed in the middle of the movable transverse baffle plate, a sliding nut is installed after the pull rod penetrates through the self-adjusting flat hole, and the sliding nut can freely slide in the self-adjusting flat hole; a left adjusting rod and a right adjusting rod are vertically connected to the pull rod seat or the upper adjusting nail rod and the lower adjusting nail rod, the left adjusting nail rod and the right adjusting nail rod are fixed or restrained in a vertical flat hole of a vertical flat seat through left and right lock wires, a lateral fixing screw rod is transversely fixed to one side of the vertical flat seat, and the lateral fixing screw rod is fixed through a lateral sliding nut after transversely penetrating through an arc-shaped hole of an adjusting ring.

2. The traction reduction device for bone fracture according to claim 1, wherein the edge of the self-adjusting flat hole in the middle of the movable transverse baffle is provided with a flat chamfer slideway or a spherical concave chamfer slideway, the inner side surface of the sliding nut is spherical, and the spherical surface is in surface contact with the flat chamfer slideway or the spherical concave chamfer slideway and can freely slide.

3. The traction reduction device for bone fracture according to claim 1, wherein the arc-shaped hole edge of the adjusting ring located on the adjusting steel ring is provided with an arc-shaped concave chamfer slideway or an arc-shaped flat chamfer slideway, the inner side surface of the top sliding nut or the side sliding nut is a spherical surface, and the spherical surface is in surface contact with the arc-shaped concave chamfer slideway or the arc-shaped flat chamfer slideway and can freely slide under the state of no locking wire.

4. The fracture distraction reduction device of claim 1, wherein the proximal steel ring or the distal steel ring is provided with an arcuate hole, and a fixing member for fixing the proximal cross-pin is fixedly mounted in the arcuate hole of the proximal steel ring.