CN211583435U - Adjustable lower limb bone traction device without sliding weight - Google Patents

Abstract

The utility model discloses an adjustable lower limb bone traction device without a weight, which comprises a three-dimensional bracket, a traction assembly and an adjusting assembly, wherein the traction assembly and the adjusting assembly are arranged on the three-dimensional bracket; the traction assembly comprises an upper pulley, a lower pulley, a traction rope and a spring; the adjusting component comprises an upper pulley adjusting and locking device and a lower pulley adjusting and locking device, the upper pulley adjusting and locking device is adjustably installed on the three-dimensional support and is connected with an upper pulley through a lateral fixed rod, the lower pulley adjusting and locking device comprises an auxiliary adjusting and locking device and a twisting and stopping integrated device, the auxiliary adjusting and locking device and the twisting and stopping integrated device are respectively connected with a lower pulley through the fixed rod, the auxiliary adjusting and locking device is adjustably installed on a horizontal sliding rod, and the twisting and stopping integrated device is installed on a toothed rail on the top surface in a mode of twisting and walking through a knob. The utility model discloses be convenient for adjust, and can effectively prevent the emergence of turning over in sufficient inside and outside, satisfy clinical treatment demand more.

Description

Adjustable lower limb bone traction device without sliding weight

Technical Field

The utility model relates to an adjustable lower limb bone traction device without a weight, which belongs to the field of medical instruments.

Background

The bone traction is a mode of directly drawing bones through a round needle so as to effectively reduce and fix fracture and dislocation, and is often used for preoperative reduction of unstable fracture and plaster fixation with difficulty. Lower limb traction is currently the most commonly used method of bone traction. At present, the lower limb bone traction operation is mainly implemented by a Brown type bone traction frame. The existing Brown type bone traction frame consists of a main body stainless steel or metal iron support frame, a traction bow, a gauze bandage or a cloth belt, a bed head fixing device, a pulley, a traction rope, a weight hook, a weight and the like. The Brown type bone traction frame has the advantages that the main structure is formed by welding iron or stainless steel, the structure is firm, the traction angle is fixed, and the bone traction treatment of patients with different heights and traction positions is difficult to meet in the clinical bone traction treatment. On the other hand, the foot eversion cannot be effectively prevented during traction, and the condition that ineffective traction is generated due to loosening of a rope of a weight frequently occurs, the weight is smashed, and the safety of staff beside a bed can be threatened by a serious person. In addition, for emergency treatment or a ward without a bed head fixing device, when a patient needs bone traction, the traction rope is often not reliably fixed, so that the phenomenon that the rope slides on one side easily occurs, and the traction effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable low limbs bone draw gear of no sliding weight of steelyard to it is fixed to overcome traditional brown formula bone draw gear and pull angle, can not prevent enough inside and outside deformity that turns over, and the operation at every turn needs to prepare the sliding weight of steelyard and head of a bed fixing device and leads to inconvenient scheduling problem.

In order to achieve the purpose, the utility model adopts the technical proposal that: a lower limb bone traction device capable of being adjusted without a weight comprises a three-dimensional support consisting of a plurality of support rods, a traction assembly and an adjusting assembly, wherein the traction assembly is arranged on the three-dimensional support and used for traction of limbs, and the adjusting assembly is used for adjusting traction force; wherein the content of the first and second substances,

the traction assembly comprises an upper pulley positioned above, a lower pulley positioned below, a traction rope for traction and a spring, wherein the upper pulley and the lower pulley are both adjustably mounted on the three-dimensional support;

the adjusting component comprises an upper pulley adjusting and locking device and a lower pulley adjusting and locking device, the upper pulley adjusting and locking device can be slidably adjusted and installed above the three-dimensional support and is fixedly connected with the upper pulley through a lateral fixed rod, the lower pulley adjusting and locking device comprises an auxiliary adjusting and locking device and a twisting and stopping integrated device, the auxiliary adjusting and locking device and the twisting and stopping integrated device are respectively connected with the lower pulley through a lower pulley fixed rod, the auxiliary adjusting and locking device can be slidably adjusted and installed on the horizontal sliding rod, the twisting and stopping integrated device is installed on the toothed rail of the top surface in a mode of twisting and walking through a knob, and two ends of the horizontal sliding rod and the toothed rail of the top surface are connected on the three-dimensional support.

Further, the three-dimensional support comprises a support tail bottom supporting rod, a support body bottom horizontal supporting rod, a support tail vertical supporting rod, a support body top horizontal supporting rod, a head side vertical supporting rod, a head side diagonal supporting rod and a head side bottom supporting rod, a bent fixing loop bar is connected above the support tail vertical supporting rod, and the bent fixing loop bar is installed on the top end of the support tail vertical supporting rod in an alternating mode through a sleeve hole buckle locking mechanism.

Furthermore, a limb elastic fixing band is arranged on the head side diagonal support rod, and the head side diagonal support rod is fixed in an auxiliary mode through an auxiliary fixing rod.

Furthermore, a boot-shaped support is arranged above the three-dimensional support and in front of the upper pulley, the boot-shaped support is arranged on a support rod of the boot-shaped support, two ends of the support rod of the boot-shaped support are fixedly connected with a boot-shaped support adjusting and locking device, and the boot-shaped support adjusting and locking device is slidably arranged above the three-dimensional support.

Further, last pulley adjustment locking device and boots type hold in the palm and adjust locking device and all adopt slip side locking device, slip side locking device includes slider A, knob A and screw rod A, slider A slidable suit is on the support body top horizontal support pole of three-dimensional support top, screw rod A one end is equipped with knob A, the other end passes slider A's side tip with threaded connection's form and this end accessible precession's mode withstands support body top horizontal support pole and then realizes locking.

Furthermore, the sliding block A is of a split structure, and the two separated sliding blocks are connected into a whole through a connecting sheet A.

Furthermore, the auxiliary adjusting and locking device adopts a sliding top surface locking device, the sliding top surface locking device comprises a sliding block B, a knob B and a screw rod B, the sliding block B is slidably sleeved on the horizontal sliding rod, one end of the screw rod B is provided with the knob B, the other end of the screw rod B penetrates through the top end part of the sliding block B in a threaded connection mode, and the end can be pushed against the horizontal sliding rod in a screwing mode to realize locking.

Furthermore, the sliding block B is of a split structure, and the two separated sliding blocks are connected into a whole through a connecting sheet B.

Furthermore, the twisting and locking integrated device comprises a pressing plate, a locking handle, a torsion spring connecting piece, a sliding block C, a torsion shaft, a knob C, a gear and a sliding groove, wherein the locking handle is installed on the sliding block C in a manner of being capable of being pressed and rotated through the torsion spring connecting piece, the pressing plate is arranged at the upper end of the locking handle, a clamping jaw is arranged at the lower end of the locking handle, the gear and the sliding groove are arranged inside the sliding block C, the top surface toothed rail penetrates through the sliding groove, the gear is located above the sliding groove and is meshed with clamping teeth on the top surface toothed rail, meanwhile, the gear is connected with the knob C located at the side end of the sliding block C through the torsion shaft, the knob C is further twisted to drive the gear to rotate on the top surface toothed rail, and scales are arranged on the top surface toothed rail so as to facilitate quantitative adjustment.

Furthermore, the spring is connected with the frame tail traction rod through a spring device fixing piece, and two ends of the frame tail traction rod are fixedly installed on the three-dimensional support.

The utility model has the advantages that: the device is convenient to prepare and simple to operate, and solves the problems that the traction angle of the traditional Brown bone traction device is fixed, the foot varus and valgus deformity cannot be prevented, inconvenience is caused by the need of preparing a weight and a bed head fixing device in each operation, and the like. The device saves a fussy bed head fixing device, effectively prevents the foot varus and valgus, is simple to operate, meets the requirements of clinical treatment, and is convenient to popularize and apply.

More specifically, the utility model discloses other advantages and characteristics are as follows:

(1) in order to ensure the effectiveness of the bone traction, the traction direction is in a straight line with the vertical line of the near-end limb. The sliding adjusting device of the upper pulley of the device can adjust the distance between the pulley and the upper pulley, and further adjust the traction direction of the limbs.

(2) The bed head hook fixing devices such as the bent fixing loop bar are arranged, the traction support is axially fixed on the sickbed, the constant positions of the sickbed and the support are ensured, and the front and back displacement of the traction support is avoided.

(3) The boot-shaped support for fixing the foot is arranged on the frame body, so that the affected foot can be favorably arranged at a neutral position, the foot varus and valgus deformity can be prevented, meanwhile, the device can fix the relative positions of the foot and the traction frame, and the affected limb can be prevented from sliding back and forth to influence the traction force.

(4) The traction adjusting device is arranged, different advancing distances on the gear track correspond to different traction force degrees, and the traction force can be adjusted conveniently.

Drawings

FIG. 1 is a perspective view of an adjustable lower limb bone traction device without a weight according to an embodiment of the present invention;

FIG. 2 is a front view of the adjustable lower limb bone traction device without a weight according to the embodiment of the present invention;

FIG. 3 is a front view of a sliding side locking device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a sliding side locking device according to an embodiment of the present invention;

FIG. 5 is a top view of a sliding side locking device according to an embodiment of the present invention;

FIG. 6 is a diagram showing the relationship between the sliding top locking device and each connecting rod according to the embodiment of the present invention;

FIG. 7 is a view showing the locking relationship between the locking device of the sliding top surface and the horizontal sliding rod according to the embodiment of the present invention;

FIG. 8 is a cross-sectional view of a sliding top locking device according to an embodiment of the present invention;

fig. 9 is a perspective view of a twisting and stopping integrated device in the patent example of the present invention;

fig. 10 is a cross-sectional view of a twist-stop integrated device according to an embodiment of the present invention;

fig. 11 is a diagram of the relationship between the internal gears and the locking of the twisting and locking integrated device according to the present invention.

Labeled as: 1: frame tail bottom sprag pole, 2: frame tail traction rod, 3: spring means mount, 4: frame tail vertical support pole, 5: locking mechanical system is detained to sleeve pipe hole, 6: bent fixed loop bar, 7: upper pulley, 8: upper pulley side dead lever, 9: sliding side locking device, 9-1: slide block A, 9-2: connecting sheet A, 9-3: knob A, 9-4: screw A, 9-5: slider internal thread a, 10: sliding top surface locking device, 10-1: knob B, 10-2: screw B, 10-3: slide block B, 10-4: connecting sheet B, 10-5: the inner side threads B of the sliding block are 11, 12: boot shoe support rod, 13: boot shoe, 14: horizontal slide bar, 15: support body top horizontal support pole, 16: head-side vertical support bar, 17: auxiliary fixing rod a, 18: auxiliary fixing rod B, 19: auxiliary fixing rod C, 20: limb elastic fixing band, 21: head-side diagonal support bar, 22: spring, 23: support body bottom horizontal support pole, 24: top toothed track (including scale), 25: twist-stop integrated device, 25-1: pressing plate, 25-2: detent lock handle, 25-3: torsion spring connector, 25-4: slide C, 25-5: torsion shaft, 25-6: knob C, 25-7: gear, 25-8: sliding groove, 26: lower pulley fixing rod, 27: lower pulley, 28: a head side bottom support rod.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the adjustable lower limb bone traction device without the weight comprises a three-dimensional support composed of a plurality of support rods, and also comprises a traction assembly arranged on the three-dimensional support and used for traction of limbs and an adjusting assembly used for adjusting traction. Wherein: the traction assembly comprises an upper pulley 7 positioned above, a lower pulley 27 positioned below, a traction rope 11 and a spring 22, wherein the traction rope 11 and the spring 22 are used for traction, the upper pulley 7 and the lower pulley 27 can be adjusted and installed on the three-dimensional support, the traction rope 11 is connected in series on the two pulleys, one end of the traction rope is connected with a traction bow at the lower limb bone of a patient, the other end of the traction rope is connected with one end of the spring 22, the other end of the spring 22 is connected with a frame tail traction rod 2 through a spring device fixing piece 3, and two ends of the frame tail traction rod 2 are fixedly installed on the three-dimensional. The adjusting component comprises an upper pulley adjusting and locking device and a lower pulley adjusting and locking device, the upper pulley adjusting and locking device can be slidably adjusted and installed above the three-dimensional support and is fixedly connected with the upper pulley 7 through a lateral fixing rod 8, and two ends of the lateral fixing rod 8 are respectively welded and fixed on the upper pulley 7 and the upper pulley adjusting and locking device. The lower pulley adjustment and locking device comprises an auxiliary adjustment and locking device and a twisting and stopping integrated device, 25 the auxiliary adjustment and locking device and the twisting and stopping integrated device 25 are respectively connected with a lower pulley 27 through a lower pulley fixing rod 26, the auxiliary adjustment and locking device is slidably adjusted and installed on the horizontal sliding rod 14, the twisting and stopping integrated device 25 is installed on the top surface toothed rail 24 in a knob twisting walking mode, and two ends of the horizontal sliding rod 14 and the top surface toothed rail 24 are connected onto the three-dimensional support.

In this embodiment, the three-dimensional support includes frame tail bottom sprag pole 1, frame body bottom horizontal support pole 23, frame tail vertical support pole 4, frame body top horizontal support pole 15, head side vertical support pole 16, head side diagonal bracing pole 21 and head side bottom sprag pole 28, the top of frame tail vertical support pole 4 is connected with the fixed loop bar 6 of bending, and the fixed loop bar 6 of bending is detained locking mechanical system 5 through the sleeve pipe hole and is installed on the top of frame tail vertical support pole 4 with the mode of alternating. In addition, the limb elastic fixation band 20 is installed on the head-side diagonal support rod 21, and the head-side diagonal support rod 21 is secondarily fixed by an auxiliary fixing rod.

In this embodiment, a shoe support 13 is disposed above the three-dimensional support and in front of the upper pulley 7, the shoe support 13 is mounted on a shoe support rod 12, shoe support adjusting and locking devices are fixedly connected to both ends of the shoe support rod 12, and the shoe support adjusting and locking devices are slidably mounted above the three-dimensional support. Wherein, the upper pulley adjusting and locking device and the boot-shaped support adjusting and locking device both adopt a sliding side locking device 9.

As shown in fig. 3 to 5, the sliding side locking device 9 includes a sliding block a9-1, a knob a9-3 and a screw a9-4, the sliding block a9-1 is slidably sleeved on the frame top horizontal support rod 15 above the three-dimensional frame, one end of the screw a9-4 is provided with the knob a9-3, the other end of the screw penetrates through the side end of the sliding block a9-1 in a threaded manner, and the end can be screwed against the frame top horizontal support rod 15 to achieve locking. The sliding block A9-1 is of a split structure and is divided into a left half part and a right half part, and the two divided sliding blocks are connected into a whole through a connecting piece A9-2, so that the sliding block A9-1 can be sleeved on the horizontal supporting rods 15 at the tops of the rack bodies with different diameters by adjusting the distance between the two half parts.

As shown in fig. 6 to 8, the auxiliary adjustment locking device adopts a sliding top locking device 10, the sliding top locking device 10 comprises a sliding block B10-3, a knob B10-1 and a screw B10-2, the sliding block B10-3 is slidably sleeved on the horizontal sliding rod 14, one end of the screw B10-2 is provided with the knob B10-1, the other end of the screw passes through the top end part of the sliding block B10-3 in a threaded connection mode and can be pressed against the horizontal sliding rod 14 in a screwing mode to achieve locking. The sliding block B10-3 is of a split structure and is divided into an upper half part and a lower half part, and the two divided sliding blocks are connected into a whole through a connecting piece B10-4, so that the sliding block B10-3 can be sleeved on the horizontal sliding rods 14 with different diameters by adjusting the distance between the two half parts.

As shown in fig. 9 to 11, the twist-stop integrated device 25 includes a pressing plate 25-1, a stop lock handle 25-2, a torsion spring connector 25-3, a slider C25-4, a torsion shaft 25-5, a knob C25-6, a gear 25-7 and a sliding groove 25-8, the stop lock handle 25-2 is mounted on the slider C25-4 in a manner of pressing and rotating through the torsion spring connector 25-3, the stop lock handle 25-2 is provided with the pressing plate 25-1 at the upper end and a pawl at the lower end, the slider C25-4 is provided with the gear 25-7 and the sliding groove 25-8 inside, the sliding groove 25-8 is penetrated with the top toothed rail 24, the gear 25-7 is located above the sliding groove 25-8 and the gear 25-7 is engaged with a pawl on the top toothed rail 24, meanwhile, the gear 25-7 is connected with a knob C25-6 at the side end part of the sliding block C25-4 through a torsion shaft 25-5, the knob C25-6 drives the gear 25-7 to rotate on the top surface toothed track 24 through being twisted, and the top surface toothed track 24 is provided with scales so as to facilitate quantitative adjustment.

The working principle of the device is as follows: firstly, the height of the bed is adjusted by a sleeve hole buckle locking mechanism 5, and two bent fixed loop bars 6 are fixed at the bed tail. Secondly, the bone traction needle is drilled into the bone, the traction bow is fixed on two sides of the bone traction needle, and the traction rope 11 is connected to the traction bow. Next, the distance from the leg bar 12 of the boot-shaped support to the sole of the affected foot is adjusted to fix the affected foot on the boot-shaped support 13. Next, the affected thigh is secured to the limb elastic securing strap 20. Then the distance of the upper pulley 7 can be controlled by adjusting the sliding side locking devices 9 on the two sides of the upper pulley side fixing rod 8, and further the traction direction of the limb is adjusted, so that the traction direction and the near-end limb vertical line form a straight line. The sliding top locking device 10 is then released and the graduation marks on the toothed track 24 corresponding to the leading edge of the twist-stop integrated device 25 of the pull-cord 11 in a tensionless and slack-free state are marked. By twisting the knob C25-6 clockwise, the gear 25-7 is moved on the top toothed track 24, thereby pulling the spring 22 and adjusting the strength of the limb traction. (the traction force per unit distance is obtained in advance based on the stiffness coefficient of the spring, and the traction force is accurately calculated by multiplying the advance distance of the twist-stop lock integrated device 25 by the traction force per unit distance).

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution (such as t-shaped shoes instead of boot-shaped supports) fall within the scope of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims (10)

1. A lower limb bone traction device capable of being adjusted without a weight comprises a three-dimensional support consisting of a plurality of support rods, and is characterized by also comprising a traction assembly and an adjusting assembly, wherein the traction assembly is arranged on the three-dimensional support and used for traction of limbs, and the adjusting assembly is used for adjusting traction force;

the traction assembly comprises an upper pulley positioned above, a lower pulley positioned below, a traction rope for traction and a spring, wherein the upper pulley and the lower pulley are both adjustably mounted on the three-dimensional support;

the adjusting component comprises an upper pulley adjusting and locking device and a lower pulley adjusting and locking device, the upper pulley adjusting and locking device can be slidably adjusted and installed above the three-dimensional support and is fixedly connected with the upper pulley through a lateral fixed rod, the lower pulley adjusting and locking device comprises an auxiliary adjusting and locking device and a twisting and stopping integrated device, the auxiliary adjusting and locking device and the twisting and stopping integrated device are respectively connected with the lower pulley through a lower pulley fixed rod, the auxiliary adjusting and locking device can be slidably adjusted and installed on the horizontal sliding rod, the twisting and stopping integrated device is installed on the toothed rail of the top surface in a mode of twisting and walking through a knob, and two ends of the horizontal sliding rod and the toothed rail of the top surface are connected on the three-dimensional support.

2. The adjustable lower limb bone traction device without a weight according to claim 1, wherein the three-dimensional support comprises a frame tail bottom support rod, a frame body bottom horizontal support rod, a frame tail vertical support rod, a frame body top horizontal support rod, a head side vertical support rod, a head side diagonal support rod and a head side bottom support rod, a bent fixed sleeve rod is connected above the frame tail vertical support rod, and the bent fixed sleeve rod is installed at the top end of the frame tail vertical support rod in an alternating manner through a sleeve hole buckle locking mechanism.

3. The adjustable lower limb bone traction device without the weight of claim 2, wherein the head side inclined supporting rod is provided with a limb elastic fixing band, and the head side inclined supporting rod is subjected to auxiliary fixing through an auxiliary fixing rod.

4. The lower limb bone traction device without a weight of claim 1 is characterized in that a boot-shaped support is arranged above the three-dimensional support and in front of the upper pulley, the boot-shaped support is arranged on a support rod of the boot-shaped support, two ends of the support rod of the boot-shaped support are fixedly connected with an adjusting and locking device of the boot-shaped support, and the adjusting and locking device of the boot-shaped support can be slidably arranged above the three-dimensional support.

5. The adjustable lower limb bone traction device without a weight according to claim 4, wherein the upper pulley adjusting and locking device and the shoe-shaped support adjusting and locking device both adopt sliding side locking devices, each sliding side locking device comprises a sliding block A, a knob A and a screw rod A, the sliding block A can be slidably sleeved on the horizontal support rod at the top of the frame body above the three-dimensional support, one end of the screw rod A is provided with the knob A, the other end of the screw rod A penetrates through the side end part of the sliding block A in a threaded connection mode, and the end can be pushed against the horizontal support rod at the top of the frame body in a screwing mode to achieve locking.

6. The weight-free adjustable lower limb bone traction device as claimed in claim 5, wherein the sliding block A is of a split structure, and the two split sliding blocks are connected with each other into a whole through a connecting piece A.

7. The weight-free adjustable lower limb bone traction device as claimed in claim 1, wherein the auxiliary adjustment locking device is a sliding top surface locking device, the sliding top surface locking device comprises a sliding block B, a knob B and a screw rod B, the sliding block B is slidably sleeved on the horizontal sliding rod, the knob B is arranged at one end of the screw rod B, the other end of the screw rod B penetrates through the top end part of the sliding block B in a threaded connection mode, and the end can be screwed against the horizontal sliding rod to achieve locking.

8. The weight-free adjustable lower limb bone traction device as claimed in claim 7, wherein the sliding block B is of a split structure, and the two split sliding blocks are connected with each other into a whole through a connecting piece B.

9. The adjustable lower limb bone traction device without a weight according to claim 1, wherein the twisting and locking integrated device comprises a pressing plate, a locking handle, a torsion spring connector, a slider C, a torsion shaft, a knob C, a gear and a sliding groove, the locking handle is installed on the slider C in a manner of being capable of being pressed and rotated through the torsion spring connector, the pressing plate is arranged at the upper end of the locking handle, a claw is arranged at the lower end of the locking handle, the slider C is internally provided with the gear and the sliding groove, the top toothed rail is penetrated in the sliding groove, the gear is positioned above the sliding groove and meshed with the teeth on the top toothed rail, the gear is connected with the knob C at the end part of the slider C through the torsion shaft, the knob C drives the gear to rotate on the top toothed rail by being twisted, the top toothed rail is provided with scales, so as to facilitate quantitative adjustment.

10. The adjustable lower limb bone traction device without the weight of claim 1 or 2, wherein the spring is connected with a frame tail traction rod through a spring device fixing piece, and two ends of the frame tail traction rod are fixedly arranged on a three-dimensional bracket.

Images