CN217390841U - Traction bow and bone traction device - Google Patents

Abstract

The utility model provides a traction bow and bone draw gear, the traction bow includes first trailing arm and second trailing arm, first trailing arm reaches the second trailing arm all is equipped with the connecting hole for peg graft and wear the bone needle, the one end indent of first trailing arm forms first spout, the first slide bar of pegging graft in the first spout, the one end indent of second trailing arm forms the second spout, peg graft second slide bar in the second spout, first slide bar reaches locking device has all been cup jointed outward to the second slide bar, locking device is used for the restriction the axial displacement of first slide bar and second slide bar, first slide bar with the second slide bar passes through adjusting device and adjusts first slide bar with distance between the second slide bar. The axial length of the traction arms can be adjusted through the sliding rods, the radial distance between the traction arms is controlled through the adjusting device, the traction bow is adjusted according to different affected parts, the traction bows of different models do not need to be replaced, and the treatment time is saved.

Description

Traction bow and bone traction device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to traction bow and bone traction device.

Background

When a patient has fracture, the fracture part needs to be dragged and reset, and in most cases, the fracture part is dragged in an artificial mode, but the manual mode cannot be dragged for a long time.

In order to save labor and more effectively pull the fracture part, the existing orthopaedics adopts a bone traction device to treat the fracture, and after a puncture needle passes through the bone, traction force is applied to the puncture needle through a traction bow to promote the reduction of the fracture broken end.

The existing traction bow is generally designed integrally, the type of the traction bow is fixed, corresponding adjustment cannot be carried out according to different fracture parts of patients, the traction bow with different types needs to be replaced for adaptation, and the treatment time is delayed in the replacement process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art, the utility model aims at solving among the prior art traction bow model fixed, and structure integration's design causes can't in time carry out the adjustment of corresponding size according to the patient demand, hinders the technical problem of treatment time.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

a traction bow comprises a first traction arm and a second traction arm, wherein the first traction arm and the second traction arm are both provided with connecting holes, is used for inserting a bone puncture needle, one end of the first traction arm is concave inwards to form a first sliding groove, a first sliding rod is inserted in the first sliding groove, the first sliding rod can move axially along the first sliding groove, one end of the second traction arm is concave to form a second sliding groove, a second sliding rod is inserted in the second sliding groove and can axially move along the second sliding groove, the first slide bar and the second slide bar are sleeved with locking devices which are used for limiting the axial displacement of the first slide bar and the second slide bar, the first sliding rod is connected with the second sliding rod through an adjusting device, the adjusting device is used for adjusting the distance between the first sliding rod and the second sliding rod, and the adjusting device is detachably connected with a traction ring.

Compared with the prior art, the beneficial effects of the utility model reside in that: the first sliding rod is inserted in the first traction arm, the second sliding rod is inserted in the second traction arm, the axial length of the traction arm can be adjusted, an adjusting device is arranged between the first sliding rod and the second sliding rod, the radial distance between the first traction arm and the second traction arm can be controlled by adjusting the distance between the first sliding rod and the second sliding rod, the traction bow can be adjusted as required according to different fracture positions of patients, traction bows of different models do not need to be replaced, and the treatment time is saved.

Further, the locking device comprises a first locking ring and a second locking ring, the first locking ring and the second locking ring are in a circular arc shape, and is arranged around the first slide bar, the outer side wall of the first lock ring is connected with a first positioning plate, the outer side wall of the second lock ring is connected with a second positioning plate, the first positioning plate corresponds to the second positioning plate in position, one surface of the first positioning plate, facing the second positioning plate, is connected with a positioning threaded column, the positioning threaded column extends from the first positioning plate to the second positioning plate, and penetrates through the second positioning plate, a positioning nut is sleeved outside the positioning threaded column and is positioned at one end of the positioning threaded column far away from the first positioning plate, and screwing the positioning nut to enable the inner side wall of the first lock ring and the inner side wall of the second lock ring to be attached to the first slide rod.

Furthermore, the first traction arm is provided with a positioning hole, the locking device is arranged in the first sliding groove, the first positioning plate and the second positioning plate penetrate through the positioning hole and protrude out of the first traction arm, and the positioning hole is used for limiting the axial displacement of the locking device.

Furthermore, location screw thread post overcoat connects return spring, return spring's one end is connected the first locating plate orientation the one side of second locating plate, return spring's the other end is connected the second locating plate orientation the one side of first locating plate.

Furthermore, the outer side wall of the first slide bar is connected with a sleeve joint bar, the sleeve joint bar extends towards the second slide bar, the outer side wall of the second slide bar is connected with an insertion bar, the insertion bar extends towards the first slide bar, the position of the insertion bar corresponds to the position of the sleeve joint bar, the sleeve joint bar faces towards a concave complete set of connection grooves in one face of the insertion bar, and the insertion bar is inserted into the complete set of connection grooves and can slide along the complete set of connection grooves.

Furthermore, the socket rod is provided with a plurality of first positioning through holes, the insertion rod is provided with a plurality of second positioning through holes corresponding to the first positioning through holes, and when the insertion rod is inserted into the socket rod, the fixing bolt penetrates through the first positioning through holes and the second positioning through holes so as to fix the insertion rod into the socket rod.

Furthermore, the sleeve rod is sleeved with a fixed seat in an outer mode, the fixed seat is fixedly connected with the traction ring, a third positioning through hole is formed in the side wall, opposite to the fixed seat, of the fixed seat, and the fixing bolt penetrates through the third positioning through hole, the first positioning through hole and the second positioning through hole so as to fix the fixed seat on the sleeve rod.

Furthermore, the connecting hole is a threaded hole, the outer side wall of the bone penetrating needle is provided with threads corresponding to the threaded hole, and the bone penetrating needle is in threaded connection with the threaded hole.

The embodiment of the utility model provides a still provide a bone traction device, contain among the above-mentioned technical scheme traction bow.

Drawings

Fig. 1 is a schematic structural view of a traction bow according to an embodiment of the present invention;

fig. 2 is a schematic view of a disassembled structure of a traction bow according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of the portion A in FIG. 2;

fig. 4 is a schematic view of a disassembled structure of the traction bow at a second viewing angle according to an embodiment of the present invention;

FIG. 5 is a schematic view of the locking device of FIG. 1;

description of the main element symbols:

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a traction bow according to an embodiment of the present invention includes a first traction arm 10 and a second traction arm 20, wherein the first traction arm 10 and the second traction arm 20 are both provided with a connection hole 30 for inserting a bone needle 40, it can be understood that, according to an affected part of a patient, a conventional exit point of a portion to be dragged is marked, positions of the exit point are symmetrical, the connection hole 30 is disposed at the exit point, the bone needle 40 passes through the connection hole 30 of the second traction arm 20 and then enters a traction introduction point, and passes through a traction extraction point after passing through a bone and is connected to the connection hole 30 of the first traction arm 10. Preferably, the connection hole 30 is a threaded hole, the outer side wall of the bone penetrating needle 40 is provided with a thread corresponding to the connection hole 30, and the bone penetrating needle 40 is connected in the connection hole 30 in a threaded connection mode, so that the bone penetrating needle 40 cannot slide due to the movement of a patient and the like, and the treatment effect is not affected. It will be appreciated that a nut is externally fitted over the puncture needle 40 for further limiting the axial displacement of the puncture needle 40 when the puncture needle 40 is coupled within the coupling hole 30.

One end of the first drag arm 10 is recessed to form a first sliding slot 110, a first sliding rod 120 is inserted into the first sliding slot 110, the first sliding rod 120 can axially move along the first sliding slot 110, one end of the second drag arm 20 is recessed to form a second sliding slot 210, a second sliding rod 220 is inserted into the second sliding slot 210, the second sliding rod 220 can axially move along the second sliding slot 210, and understandably, the insertion direction of the first sliding rod 120 is consistent with that of the second sliding rod 220. By arranging the first slide bar 120 and the second slide bar 220, the extension of the first pulling arm 10 and the second pulling arm 20 can be realized, so that the axial length of the first pulling arm 10 and the second pulling arm 20 can be adjusted to adapt to different size requirements.

A locking device 50 is sleeved outside each of the first slide bar 120 and the second slide bar 220, after the first slide bar 120 and the second slide bar 220 slide to proper positions, the first slide bar 120 and the second slide bar 220 are fixed by the locking device 50, specifically, the locking device 50 includes a first lock ring 510 and a second lock ring 520, the first lock ring 510 and the second lock ring 520 are arc-shaped and are disposed around the first slide bar 120, an outer side wall of the first lock ring 510 is connected with a first positioning plate 511, an outer side wall of the second lock ring 520 is connected with a second positioning plate 521, the first positioning plate 511 corresponds to the second positioning plate 521 in position, the first positioning plate 511 is parallel to the second positioning plate 521, a positioning threaded column 512 is connected to a surface of the first positioning plate 511 facing the second positioning plate 521, and the positioning threaded column 512 extends from the first positioning plate 511 to the second positioning plate 521, and penetrates through the second positioning plate 521, a positioning nut 530 is sleeved outside the positioning threaded column 512, and the positioning nut 530 is positioned at one end of the positioning threaded column 512, which is far away from the first positioning plate 511. It can be understood that, by screwing the positioning nut 530, the positioning nut 530 presses the second positioning plate 521, so that the second positioning plate 521 moves towards the first positioning plate 511 along the positioning threaded post 512, and further drives the second locking ring 520 to approach the first locking ring 510, and the inner side wall of the first locking ring 510 and the inner side wall of the second locking ring 520 are attached to the first slide bar 120, so as to limit the axial displacement of the first slide bar 120. It will be appreciated that the locking device 50 limits the axial displacement of the second slide bar 220 by the same structure. Preferably, a rubber layer is connected between the inner side wall of the first lock ring 510 and the inner side wall of the second lock ring 520, and friction is increased by the rubber layer, so as to better fix the first slide bar 120. Further, the first locking ring 510 and the second locking ring 520 are circular after being folded, and are sleeved outside the first sliding rod 120, so that the locking is more stable by increasing the contact area. Further, the outer side wall of the first lock ring 510 is provided with two symmetrical first positioning plates 511, and the outer side wall of the second lock ring 520 is provided with two symmetrical second positioning plates 521.

A return spring 540 is sleeved outside the positioning threaded column 512, one end of the return spring 540 is connected with one surface of the first positioning plate 511 facing the second positioning plate 521, the other end of the return spring 540 is connected with one surface of the second positioning plate 521 facing the first positioning plate 511, when the positioning nut 530 is loosened, the return spring 540 rebounds to cooperate to enable the second positioning plate 521 to better keep away from the first positioning plate 511, and further enable the second lock ring 520 to keep away from the first lock ring 510.

The first pull arm 10 is provided with a positioning hole 130, the locking device 50 is disposed in the first sliding groove 110, the first positioning plate 511 and the second positioning plate 521 pass through the positioning hole 130 and protrude out of the first pull arm 10, the axial length of the positioning hole 130 along the first pull arm 10 is the same as the axial length of the first positioning plate 511 along the first pull arm 10, and the positioning hole 130 is disposed to limit the axial displacement of the locking device 50, so as to prevent the locking device 50 from following the axial displacement of the first slide bar 120. It is understood that the length of the positioning hole 130 along the radial direction of the first pulling arm 10 is greater than the distance between the first positioning plate 511 and the second positioning plate 521, so as to lock or unlock the locking device 50, and it is understood that the second pulling arm 20 is also opened with the positioning hole 130.

The first slide bar 120 is connected with the second slide bar 220 through an adjusting device 60, the adjusting device 60 is used for adjusting the distance between the first slide bar 120 and the second slide bar 220, so as to adjust the distance between the first traction arm 10 and the second traction arm 20, the axial length and the radial length of the traction bow can be adjusted through matching with the first slide bar 120 and the second slide bar 220, the traction bow can be adjusted as required according to different fracture positions of patients, the traction bows of different models do not need to be replaced, and the treatment time is saved.

The adjusting device 60 includes a socket rod 610 and an inserting rod 620, the socket rod 610 is connected to the outer side wall of the first slide bar 120, the socket rod 610 extends from the first slide bar 120 to the second slide bar 220, the inserting rod 620 is connected to the outer side wall of the second slide bar 220, the inserting rod 620 is derived from the second slide bar 220 to the first slide bar 120, the socket rod 610 corresponds to the inserting rod 620, further, the socket rod 610 faces to the inner concave whole set of inserting groove 611 of one side of the inserting rod 620, the inserting rod 620 is inserted in the socket groove 611 and can slide along the socket groove 611. By sliding the insertion rod 620 along the sleeve groove 611, the distance between the first sliding rod 120 and the second sliding rod 220 can be adjusted, and further, the distance between the first traction arm 10 and the second traction arm 20 can be adjusted.

The socket rod 610 is provided with a plurality of first positioning through holes 612, preferably, a plurality of the first positioning through holes 612 are uniformly distributed along the socket rod 610, and a plurality of the first positioning through holes 612 are parallel to each other, it can be understood that the first positioning through holes 612 communicate with the socket groove 611, the insertion rod 620 is provided with a plurality of second positioning through holes 621, the second positioning through holes 621 correspond to the first positioning through holes 612, when the insertion rod 620 is inserted into the socket rod 610, by inserting the fixing bolt 630, the fixing bolt 630 passes through the first positioning through holes 612 and the second positioning through holes 621, so as to fix the insertion rod 620 into the socket rod 610, and it is avoided that the insertion rod 620 slides along the socket groove 611 to cause inaccurate positioning after being adjusted to a proper length.

Still the cover is equipped with fixing base 70 outside the socket rod 610, fixing base 70 can be followed socket rod 610 slides, the relative lateral wall of fixing base 70 is provided with third positioning hole 710, through sliding fixing base 70, third positioning hole 710 can correspond to the position of first positioning hole 612, through inserting fixing bolt 630, fixing bolt 630 passes third positioning hole 710 first positioning hole 612 reaches second positioning hole 621 will peg graft pole 620 is fixed in when in the socket rod 610, will fixing base 70 is fixed in outside the socket rod 610, fixing base 70's lateral wall is connected with traction ring 80, traction ring 80 is used for connecting the heavy object, so that the traction bow atress drives the skeleton return. It can be understood that, by sliding the fixing seat 70 along the sleeve rod 610 to the first positioning through hole 612 at different positions, the force-bearing position of the traction ring 80 can be adjusted, so that the center of gravity of the traction bow can be adjusted to adapt to the force-bearing direction of the bone return.

The utility model also provides a bone traction device, this bone traction device include the traction bow in the above-mentioned embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. A traction bow is characterized by comprising a first traction arm and a second traction arm, wherein the first traction arm and the second traction arm are respectively provided with a connecting hole for inserting a bone needle, one end of the first traction arm is inwards concave to form a first sliding groove, a first sliding rod is inserted in the first sliding groove, the first sliding rod can axially move along the first sliding groove, one end of the second traction arm is inwards concave to form a second sliding groove, a second sliding rod is inserted in the second sliding groove, the second sliding rod can axially move along the second sliding groove, locking devices are sleeved outside the first sliding rod and the second sliding rod, the locking devices are used for limiting axial displacement of the first sliding rod and the second sliding rod, the first sliding rod is connected with the second sliding rod through adjusting devices, the adjusting devices are used for adjusting the distance between the first sliding rod and the second sliding rod, the adjusting device is detachably connected with the traction ring.

2. The traction bow of claim 1, wherein the locking device comprises a first locking ring and a second locking ring, the first locking ring and the second locking ring being in the shape of a circular arc, and is arranged around the first slide bar, the outer side wall of the first lock ring is connected with a first positioning plate, the outer side wall of the second lock ring is connected with a second positioning plate, the first positioning plate corresponds to the second positioning plate in position, one surface of the first positioning plate, facing the second positioning plate, is connected with a positioning threaded column, the positioning threaded column extends from the first positioning plate to the second positioning plate, and penetrates through the second positioning plate, a positioning nut is sleeved outside the positioning threaded column and is positioned at one end of the positioning threaded column far away from the first positioning plate, and screwing the positioning nut to enable the inner side wall of the first lock ring and the inner side wall of the second lock ring to be attached to the first slide rod.

3. The traction bow according to claim 2, wherein the first traction arm defines a positioning hole, the locking device is disposed in the first sliding groove, the first positioning plate and the second positioning plate pass through the positioning hole and protrude from the first traction arm, and the positioning hole is configured to limit axial displacement of the locking device.

4. The traction bow according to claim 2, wherein the positioning threaded post is sleeved with a return spring, one end of the return spring is connected with a surface of the first positioning plate facing the second positioning plate, and the other end of the return spring is connected with a surface of the second positioning plate facing the first positioning plate.

5. The traction bow as claimed in claim 1, wherein a socket bar is connected to an outer sidewall of the first sliding bar, the socket bar extends from the first sliding bar to the second sliding bar, an insertion bar is connected to an outer sidewall of the second sliding bar, the insertion bar extends from the second sliding bar to the first sliding bar, a position of the insertion bar corresponds to a position of the socket bar, the socket bar faces to an inner concave socket set of the insertion bar, and the insertion bar is inserted into the socket set and can slide along the socket set.

6. The traction bow as claimed in claim 5, wherein the socket rod is provided with a plurality of first positioning holes, the inserting rod is provided with a plurality of second positioning holes corresponding to the first positioning holes, and when the inserting rod is inserted into the socket rod, the fixing bolt passes through the first positioning holes and the second positioning holes by inserting the fixing bolt, so as to fix the inserting rod into the socket rod.

7. The traction bow as claimed in claim 6, wherein the socket rod is externally sleeved with a fixing seat, the fixing seat is fixedly connected with the traction ring, a third positioning through hole is formed in a side wall of the fixing seat opposite to the fixing seat, and the fixing bolt penetrates through the third positioning through hole, the first positioning through hole and the second positioning through hole to fix the fixing seat on the socket rod.

8. The traction bow according to claim 1, wherein the connection hole is a threaded hole, and the outer sidewall of the bone penetrating needle is provided with a thread corresponding to the threaded hole, and the bone penetrating needle is threadedly connected in the threaded hole.

9. A bone distraction device comprising a traction arch according to any of claims 1 to 8.

Images