CN217090864U

CN217090864U - Diaphysis fracture resetting device

Info

Publication number: CN217090864U
Application number: CN202123389166.1U
Authority: CN
Inventors: 张新星; 陈超; 李雨健; 刘俊杰; 赵英杰
Original assignee: Quzhou College of Technology
Current assignee: Quzhou College of Technology
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-02
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a fracture reduction device for the bone shaft, belonging to the field of fracture reduction devices, comprising a base, a connecting frame, a sliding rod, a fixed block, a sliding block, a connecting rod and a traction needle; the base, the connecting frame, the sliding rod, the fixed block and the sliding block are respectively provided with two parts; the two connecting frames are respectively arranged at the two ends of the two bases; the two sliding rods are respectively arranged on the two connecting frames in a sliding manner; the connecting frame is provided with an adjusting mechanism for driving the two sliding rods to move; the two fixed blocks are respectively arranged on the two sliding rods; the two sliding blocks are respectively arranged on the two sliding rods in a sliding manner; the connecting frame is provided with a stretching mechanism for driving the two sliding blocks to move; the four connecting rods are respectively arranged on the two fixed blocks and the two sliding blocks in a sliding manner; the fixed block and the sliding block are both provided with a lifting mechanism for driving the connecting rod to move; the traction needle is respectively arranged on the fixed block and the sliding block. The utility model discloses the convenience aligns backbone stretching.

Description

Diaphysis fracture resetting device

Technical Field

The utility model relates to a fracture resetting means field especially relates to a bone shaft fracture resetting means.

Background

The diaphysis fracture is the most common fracture form, due to the traction of muscles and the movement of limbs after fracture, the short deformity and the rotation deformity are easily generated, the short deformity is the condition that the length of bones is shortened, and the rotation deformity is the condition that the broken bones deflect, under the condition, the broken bones must be reset, and the deformity is corrected to ensure that the healed bones have good alignment and force lines without influencing the life quality of a patient, otherwise, complications such as poor force lines, deformed healing and the like can cause traumatic arthritis or osteoarthritis, and seriously influence the limb function and the life quality of the patient.

The existing fracture reduction instruments are that a reduction device is fixed at two ends of a broken bone through a traction needle and then is reduced, the length of the broken bone which is pulled open and the rotating angle are adjusted in the operation, but the adjustment of the device after being fixed on the broken bone is not flexible and convenient, the difficulty is high, the adjustment precision of the reduction amplitude is influenced and limited, the operation time is long, and the workload of doctors is large; in addition, current devices generally pull the fractured bone apart in the form of a threaded sleeve, which deflects to one side as the sleeve is rotated, causing instability of the distraction device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a diaphysis fracture resetting device which is convenient to stretch and align the diaphysis aiming at the problems existing in the background technology.

The technical scheme of the utility model: a fracture reduction device for a bone shaft comprises a base, a connecting frame, a sliding rod, a fixed block, a sliding block, a connecting rod and a traction needle;

the base, the connecting frame, the sliding rod, the fixed block and the sliding block are respectively provided with two parts; the two bases are arranged in parallel, and the two connecting frames are respectively fixedly connected with the two ends of the two bases; two ends of the two sliding rods are respectively arranged on the two connecting frames in a sliding manner; the connecting frame is provided with an adjusting mechanism for driving the two sliding rods to horizontally move; the two fixed blocks are respectively and fixedly arranged on the two sliding rods; the two sliding blocks are respectively arranged on the two sliding rods in a sliding manner; the connecting frame is provided with a stretching mechanism for driving the two sliding blocks to move along the sliding rod; the four connecting rods are arranged, and the two fixed blocks and the two sliding blocks are respectively provided with one connecting rod; the fixed block and the sliding block are both provided with a lifting mechanism for driving the connecting rod to vertically lift; the traction needles are multiple, the lower ends of the connecting rods on the two fixed blocks are connected with one traction needle, and the lower ends of the connecting rods on the two sliding blocks are connected with one traction needle.

Preferably, the sliding block is provided with a connecting block; the stretching mechanism comprises a hand wheel a, a lead screw a, a guide rail a and a push rod; a lead screw, a guide rail and a sliding rod are parallel to each other; the a screw rod and the a guide rail are both arranged on the connecting frame; a, the screw rod is rotatably connected with the connecting frame; the a hand wheel is arranged on the a lead screw and used for driving the a lead screw to rotate; the pushing rod is arranged on the guide rail a in a sliding mode and is in threaded fit connection with the lead screw a; the push rod is connected with the connecting blocks on the two sliding blocks.

Preferably, the lifting mechanism comprises a hand wheel b, a screw rod b, a guide rail b and a lifting block b; the screw mandrel and the guide rail b are arranged in parallel along the vertical direction; the hand wheel is arranged at the upper end of the screw rod b and is used for driving the screw rod b to rotate; the lifting block is arranged on the guide rail b in a sliding manner and is in threaded fit connection with the screw rod b; the lifting block is fixedly connected with the connecting rod.

Preferably, the upper end of the guide rail b is provided with a mounting plate; the mounting panel and fixed block or sliding block fixed connection, the b lead screw rotates and sets up on the mounting panel.

Preferably, the adjusting mechanism comprises a bidirectional screw rod and a handle; the bidirectional screw rod is horizontally arranged and is vertical to the sliding rod, and comprises an a thread part and a b thread part which have opposite thread turning directions; the two sliding rods are respectively in threaded connection with the thread part a and the thread part b; the handle is arranged on the bidirectional screw rod and used for driving the bidirectional screw rod to rotate.

Preferably, the number of the adjusting mechanisms is two, and each connecting frame is provided with one adjusting mechanism.

Preferably, the traction needle is detachably connected with the connecting rod; the lower end of the connecting rod is provided with a clamping block and a fastening bolt; the clamping block is abutted against the traction needle.

Compared with the prior art, the utility model discloses following profitable technological effect has:

in the utility model, two bases are respectively placed on two sides of the backbone of a patient, and the fixed block and the sliding block are respectively positioned at two ends of the fracture of the patient, the position of the sliding rod is adjusted by the adjusting mechanism, so that the sliding rod drives the fixed block and the sliding block to move together, and the fixed block and the sliding block can drive the connecting rod to move, thereby the connecting rod can be positioned on two sides of the backbone of the patient; the connecting rod is driven to move by the lifting mechanism, the connecting rod drives the traction needle to move, the traction needle can be aligned to the backbone of a patient, the traction needle is installed on the backbone of the patient, the two sliding blocks are driven to move by the stretching mechanism, the sliding blocks drive the connecting rod to move, the connecting rod drives the traction needle to move, so that the fracture of the patient can be pulled open, the fracture is aligned by the lifting mechanism, and the backbone is conveniently fixed.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of an embodiment of the present invention.

Reference numerals: 1. a base; 2. a connecting frame; 3. a slide bar; 4. an adjustment mechanism; 51. a fixed block; 52. a slider; 6. Connecting blocks; 7. a stretching mechanism; 701. a, a hand wheel; 702. a, a lead screw; 703. a, a guide rail; 704. a push rod; 8. a connecting rod; 9. a traction needle; 10. a lifting mechanism; 1001. b, a hand wheel; 1002. b, a screw rod; 1003. b, a guide rail; 1004. a lifting block; 11. and (7) mounting the plate.

Detailed Description

Example one

As shown in fig. 1-2, the utility model provides a fracture reduction device for the bone shaft, which comprises a base 1, a connecting frame 2, a sliding rod 3, a fixed block 51, a sliding block 52, a connecting rod 8 and a traction needle 9;

two base 1, two connecting frames 2, two sliding rods 3, two fixed blocks 51 and two sliding blocks 52 are arranged; the two bases 1 are arranged in parallel, and the two connecting frames 2 are respectively fixedly connected with the two ends of the two bases 1; two ends of the two sliding rods 3 are respectively arranged on the two connecting frames 2 in a sliding manner; the connecting frame 2 is provided with an adjusting mechanism 4 for driving the two sliding rods 3 to horizontally move; the two fixed blocks 51 are respectively fixedly arranged on the two sliding rods 3; the two sliding blocks 52 are respectively arranged on the two sliding rods 3 in a sliding manner; the connecting frame 2 is provided with a stretching mechanism 7 for driving the two sliding blocks 52 to move along the sliding rod 3; the number of the connecting rods 8 is four, and two connecting rods 8 are respectively arranged on the two fixed blocks 51 and the two sliding blocks 52; the fixed block 51 and the sliding block 52 are both provided with a lifting mechanism 10 for driving the connecting rod 8 to vertically lift; the number of the traction needles 9 is multiple, the lower ends of the connecting rods 8 on the two fixed blocks 51 are connected with one traction needle 9, and the lower ends of the connecting rods 8 on the two sliding blocks 52 are connected with one traction needle 9. The traction needle 9 is detachably connected with the connecting rod 8; the lower end of the connecting rod 8 is provided with a clamping block and a fastening bolt; the clamping block is abutted against the traction needle 9; the traction needle 9 is fixed through the clamping block and the fastening bolt, the traction needle 9 is conveniently installed, and the use is convenient.

In this embodiment, the two bases 1 are respectively placed on two sides of the backbone of the patient, the fixed block 51 and the sliding block 52 are respectively located at two ends of the fracture of the patient, the position of the sliding rod 3 is adjusted by the adjusting mechanism 4, so that the sliding rod 3 drives the fixed block 51 and the sliding block 52 to move, the fixed block 51 and the sliding block 52 drive the connecting rod 8 to move, and the connecting rod 8 can be located on two sides of the backbone of the patient; the connecting rod 8 is driven to move through the lifting mechanism 10, the connecting rod 8 drives the traction needle 9 to move, the traction needle 9 can be aligned to the backbone of a patient, the traction needle is installed on the backbone of the patient, the two sliding blocks 52 are driven to move through the stretching mechanism 7, the sliding blocks 52 drive the connecting rod 8 to move, the connecting rod 8 drives the traction needle 9 to move, therefore, the fracture of the patient can be pulled open, the fracture is aligned through the lifting mechanism 10, and the backbone is conveniently fixed.

Example two

As shown in fig. 1-2, compared with the first embodiment, the sliding block 52 of the first embodiment of the bone fracture reduction device of the present invention is provided with a connecting block 6; the stretching mechanism 7 comprises a hand wheel 701, a screw rod 702, a guide rail 703 and a push rod 704; the a lead screw 702, the a guide rail 703 and the sliding rod 3 are parallel to each other; the a screw rod 702 and the a guide rail 703 are both arranged on the connecting frame 2; a, a screw rod 702 rotates and can be connected with the connecting frame 2; the a hand wheel 701 is arranged on the a lead screw 702 and used for driving the a lead screw to rotate; the pushing rod 704 is arranged on the a guide rail 703 in a sliding mode and is connected with the a screw rod 702 in a threaded fit mode; the push rod 704 is connected to the connecting blocks 6 on the two sliding blocks 52.

In this embodiment, after the patient backbone is fixed by the traction needle 9, the a hand wheel 701 is rotated, the a hand wheel 701 drives the a screw rod 702 to rotate, the a screw rod 702 drives the push rod 704 to move, the a guide rail 703 guides the push rod 704, the a push rod 704 drives the two connecting blocks 6 to move, the connecting blocks 6 drive the sliding block 52 to move, the sliding block 52 drives the connecting rod 8 to move, and the connecting rod 8 drives the traction needle 9 to move, so that the position of the traction needle 9 can be adjusted, and the use is convenient.

EXAMPLE III

As shown in fig. 1-2, compared with the first or second embodiment, the lifting mechanism 10 of the present invention includes a b handwheel 1001, a b lead screw 1002, a b guide rail 1003 and a lifting block 1004; the b screw rod 1002 and the b guide rail 1003 are vertically arranged in parallel; the b hand wheel 1001 is arranged at the upper end of the b screw rod 1002 and is used for driving the b screw rod 1002 to rotate; the lifting block 1004 is arranged on the b guide rail 1003 in a sliding mode and is connected with the b screw rod 1002 in a threaded fit mode; the lifting block 1004 is fixedly connected with the connecting rod 8. The upper end of the guide rail 1003 b is provided with a mounting plate 11; the mounting plate 11 is fixedly connected with the fixed block 51 or the sliding block 52, and the b-screw 1002 is rotatably arranged on the mounting plate 11.

In this embodiment, rotate b hand wheel 1001, b hand wheel 1001 drives b lead screw 1002 and rotates, and b lead screw 1002 drives elevator 1004 and removes, and elevator 1004 drives connecting rod 8 and removes, and connecting rod 8 drives the removal of traction needle 9 to the height of adjustment traction needle 9 can carry out reasonable adjustment according to the position of patient's shank, facilitates the use.

Example four

As shown in fig. 1-2, compared with the first embodiment, the second embodiment or the third embodiment, the adjusting mechanism 4 of the present invention includes a bidirectional screw rod and a handle; the bidirectional screw rod is horizontally arranged and is vertical to the sliding rod, and comprises an a thread part and a b thread part which have opposite thread turning directions; the two sliding rods 3 are respectively in threaded connection with the thread part a and the thread part b; the handle is arranged on the bidirectional screw rod and used for driving the bidirectional screw rod to rotate. The number of the adjusting mechanisms 4 is two, and each connecting frame 2 is provided with one adjusting mechanism 4.

In this embodiment, the handle drives two-way lead screw and rotates, and two slide bar 3 of two-way lead screw drive move, and slide bar 3 drives fixed block 51 and sliding block 52 and removes, and fixed block 51 and sliding block 52 drive connecting rod 8 respectively and remove to the position of the connecting rod 8 that the adjustment corresponds can be adjusted according to the thickness of patient's shank, facilitates the use.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A reduction device for fracture of a bone trunk is characterized by comprising a base (1), a connecting frame (2), a sliding rod (3), a fixed block (51), a sliding block (52), a connecting rod (8) and a traction needle (9);

two bases (1), two connecting frames (2), two sliding rods (3), two fixed blocks (51) and two sliding blocks (52) are arranged; the two bases (1) are arranged in parallel, and the two connecting frames (2) are respectively fixedly connected with the two ends of the two bases (1); two ends of the two sliding rods (3) are respectively arranged on the two connecting frames (2) in a sliding manner; the connecting frame (2) is provided with an adjusting mechanism (4) for driving the two sliding rods (3) to horizontally move; the two fixed blocks (51) are respectively and fixedly arranged on the two sliding rods (3); the two sliding blocks (52) are respectively arranged on the two sliding rods (3) in a sliding manner; the connecting frame (2) is provided with a stretching mechanism (7) for driving the two sliding blocks (52) to move along the sliding rod (3); the number of the connecting rods (8) is four, and the two fixed blocks (51) and the two sliding blocks (52) are respectively provided with one connecting rod (8); the fixed block (51) and the sliding block (52) are both provided with a lifting mechanism (10) for driving the connecting rod (8) to vertically lift; the traction needles (9) are multiple, the lower ends of the connecting rods (8) on the two fixed blocks (51) are connected with one traction needle (9), and the lower ends of the connecting rods (8) on the two sliding blocks (52) are connected with one traction needle (9).

2. A fracture reduction device according to claim 1, wherein the sliding block (52) is provided with a connecting block (6); the stretching mechanism (7) comprises an a hand wheel (701), an a screw rod (702), an a guide rail (703) and a push rod (704); the a lead screw (702), the a guide rail (703) and the sliding rod (3) are parallel to each other; the a screw rod (702) and the a guide rail (703) are both arranged on the connecting frame (2); a, a screw rod (702) is connected with the connecting frame (2) in a rotating way; the a hand wheel (701) is arranged on the a lead screw (702) and is used for driving the a lead screw to rotate; the pushing rod (704) is arranged on the a guide rail (703) in a sliding mode and is connected with the a screw rod (702) in a threaded fit mode; the push rod (704) is connected with the connecting blocks (6) on the two sliding blocks (52).

3. A fracture reduction device according to claim 1, wherein the lifting mechanism (10) comprises a b hand wheel (1001), a b lead screw (1002), a b guide rail (1003) and a lifting block (1004); the b screw rod (1002) and the b guide rail (1003) are arranged in parallel along the vertical direction; the b hand wheel (1001) is arranged at the upper end of the b lead screw (1002) and is used for driving the b lead screw (1002) to rotate; the lifting block (1004) is arranged on the b guide rail (1003) in a sliding mode and is connected with the b screw rod (1002) in a threaded fit mode; the lifting block (1004) is fixedly connected with the connecting rod (8).

4. A fracture reduction device according to claim 3, wherein the upper end of the b-rail (1003) is provided with a mounting plate (11); the mounting plate (11) is fixedly connected with the fixed block (51) or the sliding block (52), and the b lead screw (1002) is rotatably arranged on the mounting plate (11).

5. A fracture reduction device according to claim 1, characterized in that the adjustment means (4) comprise a bidirectional screw and a handle; the bidirectional screw rod is horizontally arranged and is vertical to the sliding rod, and comprises an a thread part and a b thread part which have opposite thread turning directions; the two sliding rods (3) are respectively in threaded connection with the thread part a and the thread part b; the handle is arranged on the bidirectional screw rod and used for driving the bidirectional screw rod to rotate.

6. A fracture reduction device according to claim 1, wherein there are two adjustment means (4), one adjustment means (4) being provided on each connecting frame (2).

7. A fracture reduction device according to claim 1, characterized in that the traction needle (9) is detachably connected to the connecting rod (8); the lower end of the connecting rod (8) is provided with a clamping block and a fastening bolt; the clamping block is abutted with the traction needle (9).