CN219742843U - Orthopedics draw gear - Google Patents

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an orthopedic traction device. The utility model is provided with the shank bracket with a telescopic structure, the shank bracket can be put on the foot bracket after the length of the shank bracket is prolonged by stretching, so that the shank bracket can support the whole shank, and discomfort of a patient caused by suspending the shank is avoided; and the built-in screw rod structure that interval adjustment between the brackets adopted, the screw rod is hidden inside, so can be more pleasing to the eye in the appearance to on not having the dust to glue the screw rod, the protection screw rod that can be better prevents the screw rod wearing and tearing.

Description

Orthopedics draw gear

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to an orthopedic traction device.

Background

Distraction is a common treatment for orthopedics. The traction device is used for assisting the implementation of traction operation and improving traction effect. The known traction devices generally have two brackets for supporting and securing the lower limb of the patient, and the height of the two brackets and the spacing between them can be adjusted, which in use can be adjusted according to the patient's body shape.

However, the solutions employed by such devices also have the following drawbacks:

the lower limbs are usually suspended on two brackets, namely, the position of the lower leg adjacent to the leg fossa is arranged on one bracket, the feet are arranged on the other bracket, and the middle part of the lower limbs is suspended for a long time, so that the discomfort is caused to the patient.

Disclosure of Invention

The embodiment of the utility model provides an orthopedic traction device, which aims to solve the problems in the prior art.

The embodiment of the utility model adopts the following technical scheme:

the orthopedic traction device comprises a fixed support and two movable frames, wherein one ends of the two movable frames are pivoted on the fixed support, pulleys are arranged at the bottoms of the other ends of the two movable frames, the two movable frames can rotate around a pivot point by means of the pulleys at the bottoms of the two movable frames, and meanwhile, a first locking mechanism is arranged between the movable frames and the fixed support and can limit the movable frames to rotate after the angle is adjusted;

each movable frame comprises a fixed arm section and a movable arm section which are horizontally arranged, and the movable arm sections can be telescopic corresponding to the fixed arm sections;

the fixed arm section is pivoted on the fixed support, the pulley is fixed on the movable arm section, a first lifting rod is arranged on the fixed arm section, a lower leg bracket is arranged at the top of the first lifting rod, a second lifting rod is arranged on the second arm section, and a foot bracket is arranged at the top of the second lifting rod;

the shank bracket adopts a telescopic structure, and can be stretched to extend the length and then put on the foot bracket.

Further, the shank bracket comprises a plurality of superimposed supporting plates, the adjacent supporting plates are in sliding fit and are provided with guiding and fixing structures, each guiding and fixing structure comprises a straight hole arranged on one supporting plate and a fixing screw, and the fixing screw penetrates through the straight hole upwards from the bottom of the straight hole and is screwed on the other supporting plate.

Further, the first locking mechanism comprises a sleeve arranged on the fixed arm section, a pin shaft arranged on the fixed support and a locking nut screwed on the top of the pin shaft, the sleeve is sleeved on the pin shaft, the locking nut is screwed on the pin shaft and can be tightly pressed on the sleeve, and the movable frame is locked by means of friction between the locking nut and the sleeve so as to limit the rotation of the movable frame.

Further, the movable arm section and the fixed arm section are hollow structures, the movable arm section stretches out and draws back to adopt a first built-in screw rod structure, the first built-in screw rod structure comprises two screw rod fixing seats arranged inside the movable arm section, a screw rod arranged on the two screw rod fixing seats and a screw rod nut fixed in the fixed arm section, one end of the screw rod extends outwards and is fixed with a handle, and the other end of the screw rod extends into the fixed arm section and is screwed to the screw rod nut.

Further, the bottom of the first lifting rod is provided with a clamp, and the clamp is connected with the fixed arm section.

Further, the first lifting rod and the second lifting rod have the same structure; the movable rod is fixedly sleeved with the spring support, the spring support is sleeved on the movable rod and abutted to the bottoms of the second fixed sleeve and the fixed rod, the locking screw is connected to the outer portion of the top of the fixed rod in a threaded mode, the locking screw can penetrate into the fixed rod and the first fixed sleeve to be abutted to the movable rod, and the movable rod is limited to lift through friction force between the locking screw and the movable rod.

Further, the lower leg bracket is connected with the top of the first lifting rod in a universal way.

Further, the foot bracket is pivotally connected to the top of the second lifter.

The beneficial effects are that:

firstly, the utility model is provided with the shank bracket with a telescopic structure, the shank bracket can be put on the foot bracket after the length of the shank bracket is prolonged by stretching, so that the shank bracket can support the whole shank, and discomfort of a patient caused by suspending the shank is avoided;

secondly, the built-in screw rod structure adopted by the interval adjustment between the brackets is hidden inside, so that the appearance is more attractive, dust is not adhered to the screw rod, the screw rod can be better protected, and the screw rod is prevented from being worn.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the first lift bar and calf support of the utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic top view of the mobile frame;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic structural view of the first locking mechanism;

FIG. 7 is a schematic perspective view of a foot bracket;

FIG. 8 is a schematic cross-sectional view of a foot bracket and a second in-line lead screw structure;

reference numerals:

the device comprises a fixed support 1, a movable frame 2, a fixed arm section 201, a movable arm section 202, a pulley 3, a first locking mechanism 4, a sleeve 401, a pin shaft 402, a locking nut 403, a tooth socket 404, a calf bracket 5, a supporting plate 501, a straight hole 502, a fixing screw 503, a first lifting rod 6, a fixing rod 601, a movable rod 602, a spring support 603, a first fixing sleeve 604, a second fixing sleeve 605, a foot bracket 7, a second lifting rod 8, a first built-in screw rod structure 9, a screw rod fixing seat 901, a screw rod 902, a screw rod nut 903, a locking screw 10, a clamp 11, a ball head 12, a second locking mechanism 13 and a second built-in screw rod structure 14.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to fig. 1 to 8.

Specifically, referring to fig. 1, the orthopedic traction device of the present utility model includes a fixed support 1 and two movable frames 2, one ends of the two movable frames 2 are pivoted on the fixed support 1, the other ends are both provided with pulleys 3 at the bottom, the two movable frames 2 can rotate the movable frames 2 around the pivot point by means of the pulleys 3 at the bottom, so as to adjust the angle between the two movable frames 2, and a first locking mechanism 4 is provided between the movable frames 2 and the fixed support 1, which can limit the rotation of the movable frames 2 after the angle adjustment.

Referring to fig. 1, 4 and 5, the movable frame 2 is composed of a fixed arm section 201 and a movable arm section 202 which are horizontally arranged, the fixed arm section 201 is pivoted on the fixed support 1, the pulley 3 is fixed on the movable arm section 202, the calf bracket 5 is fixed on the fixed arm section 201 by means of the first lifting rod 6, the foot bracket 7 is fixed on the movable arm section 202 by means of the second lifting rod 8, the movable arm section 202 is inserted into the fixed arm section 201 and can stretch and retract relative to the fixed arm section 201, and the distance between the foot bracket 7 and the calf bracket 5 can be adjusted by stretching and retracting the movable arm section 202, so that the leg length of different patients can be adapted.

Referring to fig. 5 and 6, the first locking mechanism 4 includes a sleeve 401 disposed on the fixed arm section 201, a pin 402 disposed on the fixed support 1, and a locking nut 403, where the sleeve 401 is sleeved on the pin 402, so that the fixed arm section 201 can rotate around the pin 402, and the locking nut 403 is screwed on the pin 402 and can be pressed on the sleeve 401, and the movable frame 2 can be locked by virtue of friction between the locking nut 403 and the sleeve 401, so as to limit rotation of the movable frame 2. On the basis, a circle of tooth grooves 404 can be arranged between the bottom surface of the sleeve 401 and the fixed support 1, and the rotation of the movable frame 2 can be better limited by the engagement of the tooth grooves 404 and the tooth grooves 404.

Referring to fig. 4, the movable arm section 202 and the fixed arm section 201 are hollow, the movable arm section 202 stretches and contracts by adopting a first built-in screw rod structure 9, the first built-in screw rod structure 9 comprises two screw rod fixing seats 901 arranged inside the movable arm section 202, the screw rod fixing seats 901 are used for supporting and fixing screw rods 902 in the movable arm section 202, one end of each screw rod 902 extends outwards and is fixed with a handle so as to facilitate personnel to operate the screw rods 902 to rotate outside, the other end of each screw rod 902 extends into the fixed arm section 201 and is screwed to screw rod nuts 903 fixed in the fixed arm section 201, and when the movable arm section 202 is regulated by a medical staff, the screw rods 902 can be driven to rotate through the handles, so that the movable arm section 202 stretches and contracts, and the distance between the shank bracket 5 and the foot bracket 7 is changed.

Referring to fig. 5, the end of the fixed arm section 201 is screwed with a locking screw 10, which can penetrate into the fixed arm section 201 and abut against the movable arm section 202, and is locked by friction between the locking screw 10 and the outer wall of the movable arm section 202, so as to limit the expansion and contraction of the movable arm section 202 after the adjustment.

Referring to fig. 1, the bottom of the first lifting rod 6 is fixed on the fixed arm section 201 by using the clamp 11, the clamp 11 is loosened, so that the first lifting rod 6 moves on the fixed arm section 201, the distance between the lower leg bracket 5 and the foot bracket 7 can be changed, the design can be selected from the first built-in screw rod structure 9, the design has the advantages that the adjustment can be faster compared with the slow rotation of the screw rod 902, the clamp 11 can be quickly adjusted in a sliding manner as long as the clamp 11 is loosened, the design can be used together with the first built-in screw rod structure 9, the adjustment range can be wider, and the distance between the lower leg bracket 5 and the fixed support 1 can be adjusted.

Referring to fig. 1, 3 and 5, the first lifting rod 6 and the second lifting rod 8 have the same structure, and specifically referring to fig. 3, each comprises a fixing rod 601 and a movable rod 602 inserted in the fixing rod 601, a gap is formed between the fixing rod 601 and the movable rod 602, the purpose of the gap is to install a spring support 603, meanwhile, the top of the fixing rod 601 is plugged into a first fixing sleeve 604, the first fixing sleeve 604 is used for positioning the movable rod 602, the movable rod 602 and the first fixing sleeve 604 form sliding guide fit, a second fixing sleeve 605 is arranged below the movable rod 602, the second fixing sleeve 605 is fixed on the movable rod 602 and forms sliding guide fit with the inner wall of the fixing rod 601, the spring support 603 is sleeved on the movable rod 602 and is abutted to the bottom of the second fixing sleeve 605 and the movable rod 601, a locking screw 10 is screwed on the outer portion of the top of the fixing rod 601, the locking screw 10 can penetrate into the fixing rod 601 and the first fixing sleeve 604 and is abutted to the movable rod 602, the corresponding locking screw 10 can be regulated by the locking screw 10 between the locking screw 10 and the movable rod 602, and the movable bracket 602 can be regulated by the corresponding lifting and the lifting degree of the movable bracket 602, and the lifting degree of the lifting can be regulated by the corresponding friction of the locking screw 10, and the lifting degree of the lifting bracket can be regulated to be lower, and the lifting degree of the lifting bracket can be regulated by the corresponding to the lifting bracket is 7. It should be noted that, because the lifting of the movable rod 602 is limited by the friction between the locking screw 10 and the movable rod 602, if the weight of the movable rod 602 is too large, the movable rod 602 may slide down, so the spring support 603 is designed to play a certain supporting role. Alternatively, a plurality of positioning holes may be formed in the movable rod 602 along the height, and one positioning pin may be inserted into one positioning hole formed in the fixed rod 601 and one positioning hole formed in the movable rod 602 to fix the movable rod 602 and to allow the movable rod 602 to be lifted.

Referring to fig. 1, the shank bracket 5 is connected to the top of the first lifting rod 6 through a ball 12 in a universal manner, and the purpose of the shank bracket 5 is to adjust the posture of the shank bracket 5 to adapt to the legs of different patients. And a locking screw 10 is arranged and can abut against the ball head 12 to fix the shank bracket 5.

Referring to fig. 1 and 3, the calf support 5 of the present utility model adopts a telescopic structure, which comprises a plurality of superimposed pallets 501, wherein adjacent pallets 501 are in sliding fit and provided with guiding and fixing structures, and the length of the calf support 5 can be prolonged and put on the foot support 7 by stretching the pallets 501, so that the calf support 5 can support the whole calf, and discomfort caused by suspending the calf is avoided. The state where the pallet 501 is extended and then mounted on the foot bracket 7 is not shown in the figure. The foot bracket 7 may be provided in a matching groove of the supporting plate 501 to position the supporting plate 501, or a positioning structure may not be provided, and the supporting plate 501 is put on the foot bracket 7, and then the foot of the patient is bound together with the supporting plate 501 and the foot bracket 7 by using a binding band.

Referring to fig. 1 and 3, the guide and fixing structure between the pallets 501 includes a straight hole 502 provided on one pallet 501, and a fixing screw 503, which passes through the straight hole 502 from the bottom of the straight hole 502 upward and is screwed to the other pallet 501. The expansion and contraction of the supporting plates 501 are guided through the cooperation of the fixing screws 503 and the straight holes 502, and meanwhile, the two supporting plates 501 are fixedly connected by the fixing screws 503, so that the limiting effect is achieved, and the separation between the supporting plates 501 is prevented. In addition to this embodiment, a slide rail may be provided between every two adjacent pallets 501, but the slide rail increases the height difference of the pallets 501 between the pallets 501 and presses the lower leg, so if the slide rail is used for guiding and fixing, a cushion is required to be laid after stretching.

Referring to Figs. 1 and 7, foot bracket 7 is pivotally connected to the top of a second lifting bar 8 which can be varied in angle about a horizontal axis to use the leg shape of a different patient. Meanwhile, a second locking mechanism 13 is arranged between the foot bracket 7 and the second lifting rod 8, and can limit the rotation of the foot bracket after being adjusted, the second locking mechanism 13 is the same as the first locking mechanism 4, and the rotation is realized by matching a sleeve 401 with a pin shaft 402, and the rotation is better limited by means of the engagement of a tooth slot 404 and a tooth slot 404 by means of limiting the rotation of a locking nut 403 after being adjusted.

Referring to Figs. 1, 7 and 8, foot bracket 7 has a second internal lead screw structure 14 which is constructed in the same manner as first internal lead screw structure 9 and will not be described again. The function of the second internal screw structure 14 is to allow the foot carrier 7 to be individually adjusted in distance from the calf carrier 5, typically by fine tuning after the device has been applied to the patient. Such as the first internal screw mechanism 9, the first lifting rod 6 and the second lifting rod 8, are generally adjusted in height and distance according to the body shape of the patient before the patient is put on the device.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (8)

1. An orthopedic traction device, characterized in that: the movable support comprises a fixed support (1) and two movable frames (2), wherein one ends of the two movable frames (2) are pivoted on the fixed support (1), pulleys (3) are arranged at the bottoms of the other ends of the two movable frames, the two movable frames (2) can enable the movable frames (2) to rotate around a pivot point by means of the pulleys (3) at the bottoms, meanwhile, a first locking mechanism (4) is arranged between the movable frames (2) and the fixed support (1), and the first locking mechanism (4) can limit the movable frames (2) to rotate after the angle is adjusted;

each movable frame (2) comprises a fixed arm section (201) and a movable arm section (202) which are horizontally arranged, and the movable arm sections (202) can be extended and contracted equivalent to the fixed arm sections (201);

the fixed arm section (201) is pivoted on the fixed support (1), the pulley (3) is fixed on the movable arm section (202), a first lifting rod (6) is arranged on the fixed arm section (201), a lower leg bracket (5) is arranged at the top of the first lifting rod (6), a second lifting rod (8) is arranged on the second arm section, and a foot bracket (7) is arranged at the top of the second lifting rod (8);

the shank bracket (5) adopts a telescopic structure, and can be put on the foot bracket (7) after the length is prolonged by stretching.

2. An orthopedic traction device according to claim 1, characterized in that: the shank bracket (5) comprises a plurality of superimposed supporting plates (501), wherein adjacent supporting plates (501) are in sliding fit and are provided with guiding and fixing structures, each guiding and fixing structure comprises a straight hole (502) arranged on one supporting plate (501), and a fixing screw (503), and the fixing screw (503) passes through the straight hole (502) upwards from the bottom of the straight hole (502) and is screwed on the other supporting plate (501).

3. An orthopedic traction device according to claim 1, characterized in that: the first locking mechanism (4) comprises a sleeve (401) arranged on the fixed arm section (201), a pin shaft (402) arranged on the fixed support (1) and a locking nut (403) screwed on the top of the pin shaft (402), wherein the sleeve (401) is sleeved on the pin shaft (402), the locking nut (403) is screwed on the pin shaft (402) and can be tightly pressed on the sleeve (401), and the movable frame (2) is locked by virtue of friction between the locking nut (403) and the sleeve (401) so as to limit the rotation of the movable frame (2).

4. An orthopedic traction device according to claim 1, characterized in that: the movable arm section (202) and the fixed arm section (201) are of hollow structures, the movable arm section (202) stretches out and draws back to adopt a first built-in screw rod structure (9), the first built-in screw rod structure (9) comprises two screw rod fixing seats (901) arranged inside the movable arm section (202), a screw rod (902) arranged on the two screw rod fixing seats (901) and a screw rod nut (903) fixed in the fixed arm section (201), one end of the screw rod (902) stretches out and is fixed with a handle, and the other end of the screw rod (902) stretches into the fixed arm section (201) and is screwed to the screw rod nut (903).

5. An orthopedic traction device according to claim 1 or 4, characterized in that: the bottom of the first lifting rod (6) is provided with a clamp (11), and the clamp (11) is connected with a fixed arm joint (201).

6. An orthopedic traction device according to claim 1, characterized in that: the first lifting rod (6) and the second lifting rod (8) have the same structure; the lifting limiting device comprises a fixed rod (601) and a movable rod (602) inserted in the fixed rod (601), a gap is reserved between the fixed rod (601) and the movable rod (602), a spring support (603) is arranged in the gap, a first fixed sleeve (604) is arranged at the top of the fixed rod (601), the movable rod (602) and the first fixed sleeve (604) form sliding guide fit, a second fixed sleeve (605) is arranged below the movable rod (602), the second fixed sleeve (605) is fixed on the movable rod (602) and forms sliding guide fit with the inner wall of the fixed rod (601), the spring support (603) is sleeved on the movable rod (602) and abuts against the bottom of the second fixed sleeve (605) and the bottom of the fixed rod (601), a locking screw (10) is in threaded connection with the top of the fixed rod (601), the locking screw (10) can penetrate into the fixed rod (601) and the first fixed sleeve (604) to abut against the movable rod (602), and the movable rod (602) is limited in lifting limiting mode by friction force between the locking screw (10) and the movable rod (602).

7. An orthopedic traction device according to claim 1, characterized in that: the lower leg bracket (5) is connected with the top of the first lifting rod (6) in a universal way.

8. An orthopedic traction device according to claim 1, characterized in that: the foot bracket (7) is pivoted on the top of the second lifting rod (8).