CN108392304B

CN108392304B - Reduction tractor for femoral neck fracture operation

Info

Publication number: CN108392304B
Application number: CN201810095542.XA
Authority: CN
Inventors: 伍子英; 陈文清; 黎明; 蔡名金
Original assignee: Third Affiliated Hospital of Guangzhou Medical University
Current assignee: Third Affiliated Hospital of Guangzhou Medical University
Priority date: 2017-03-02
Filing date: 2018-01-31
Publication date: 2020-09-18
Anticipated expiration: 2038-01-31
Also published as: CN108392304A

Abstract

The utility model provides a femoral neck fracture art is with tractor that resets, includes the support, sets up longitudinal support pole on the support and sets up on the support and be located two horizontal bracing pieces on longitudinal support pole both sides, the upper end of longitudinal support pole is provided with the bracket that is used for supporting at the perineum position, be provided with the foot support on two horizontal bracing pieces respectively, the foot support is connected on horizontal bracing piece through universal adjustment mechanism. The invention adopts a universal adjusting mechanism to realize the adduction and abduction of the affected side femoral shaft traction before the operation, and the adjustment is continuous to the Shentongshi line according to the alignment condition, so the invention has very convenient resetting adjustment and better use effect.

Description

Reduction tractor for femoral neck fracture operation

Technical Field

The invention relates to the field of medical instruments, in particular to a reduction tractor for femoral neck fracture.

Background

Femur fracture, especially femoral neck fracture, is a common clinical injury, and old people frequently suffer from multiple fractures, and are difficult to reset after fracture based on factors of physiological anatomy and contraction force of muscle groups, and in addition, femoral head blood circulation of old people is poor, so that ischemic necrosis is easily caused, dynamic hip screw internal fixation (DHS) needs to be performed, and tension and static compression are performed. However, the existing reduction retractor for femoral neck fracture operation has the foot support which is usually fixedly arranged, and cannot realize the adjustment of adduction and abduction in space, so the use effect is not ideal.

Disclosure of Invention

The invention aims to solve the problems and the defects, and provides a reduction tractor for femoral neck fracture, which can be used for adduction and abduction universal adjustment and has a better using effect.

The technical scheme of the invention is realized as follows:

the invention relates to a reduction tractor for femoral neck fracture, which comprises a bracket, a longitudinal support rod arranged on the bracket and two transverse support rods arranged on the bracket and positioned at two sides of the longitudinal support rod, wherein the upper end of the longitudinal support rod is provided with a bracket used for abutting against the perineum part, and the two transverse support rods are respectively provided with a foot support, and the reduction tractor is characterized in that: the foot support is connected to the transverse supporting rod through a universal adjusting mechanism.

In order to further improve the using effect, the universal adjusting mechanism is connected to the transverse supporting rod in a transversely movable mode through a connecting seat of the universal adjusting mechanism, a positioning knob is installed on the connecting seat, and the connecting seat is locked on the transverse supporting rod through the positioning knob after the using position of the connecting seat is adjusted.

In order to make the structure of the invention simple and the use reliable, the universal adjusting mechanism comprises a connecting seat arranged on the transverse supporting rod, a universal joint and a locking knob, wherein the universal joint and the locking knob are arranged on the connecting seat, the foot support is fixedly connected on the universal joint, and the universal joint is fixed on the connecting seat through the locking knob after the use position is adjusted.

In order to ensure the reliable use of the foot support, a hard supporting plate is arranged on the universal adjusting mechanism, and the foot support is fixedly connected to the hard supporting plate.

In order to facilitate traction adjustment, the longitudinal supporting rod is a supporting rod capable of being adjusted in a telescopic mode. And the telescopic adjustable support rod comprises a movable sleeve arranged on the support, an adjusting sleeve inserted in the movable sleeve, an adjusting screw rod arranged in the movable sleeve and in threaded connection with the lower end of the adjusting sleeve, and an adjusting handle arranged on the adjusting screw rod and rotatably connected to the lower end of the movable sleeve, wherein a locking mechanism is arranged on the support, the movable sleeve is fixed on the support through the locking mechanism after being adjusted to the use position, and the bracket is connected to the upper end of the adjusting sleeve.

In order to make the locking mechanism simple in structure and reliable in use, the locking mechanism comprises a cam rotatably connected to the bracket and a knob connected with the cam, and the cam is positioned on the outer side of the movable sleeve.

In order to facilitate the disassembly, assembly and fixation of the bracket, the bracket is connected to the adjusting sleeve through a joint.

In order to further improve the use effect, the two transverse supporting rods are respectively connected to the bracket in an up-and-down swinging mode. And the position that is used for being connected with horizontal bracing piece on the support is provided with the spacing groove, the one end of horizontal bracing piece articulates in the spacing groove, through the injecing of spacing groove makes horizontal bracing piece from lower to upper swing reach the horizontality.

Compared with the prior art, the invention has the following advantages:

1. the invention adopts the universal adjusting mechanism to realize the adduction and abduction of the affected side femoral shaft traction before the operation, thereby being capable of conveniently adjusting to the continuous Shentongshi line for observation according to the alignment of the X-ray image displayed by the C-arm X-ray machine, being very convenient for resetting and adjusting, having better use effect and effectively overcoming the defects that the foot support of the original traction frame is fixed and the angle can not be adjusted;

2. the instrument is matched with an X-ray machine, the resetting condition of the femoral neck is observed according to an X-ray display image, the alignment and the line-to-line traction adjustment of the femoral neck and the femoral fracture can be accurately realized, and the instrument is reliable and practical.

The invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, the reduction tractor for femoral neck fracture comprises a support 1, a longitudinal support rod 2 arranged on the support 1, and two transverse support rods 3 arranged on the support 1 and located at two sides of the longitudinal support rod 2, wherein a bracket 4 for supporting the perineum is arranged at the upper end of the longitudinal support rod 2, foot supports 5 are respectively arranged on the two transverse support rods 3, and the foot supports 5 are connected to the transverse support rods 3 through universal adjusting mechanisms 6. The universal adjusting mechanism 6 comprises a connecting seat 61 arranged on the transverse supporting rod 3, and a universal joint 62 and a locking knob 63 which are arranged on the connecting seat 61, wherein the universal joint 62 is fixed on the connecting seat 61 through the locking knob 63 after being adjusted to a use position, a hard supporting plate 65 is fixedly connected to the universal joint 62, the foot rest 5 is fixedly connected to the hard supporting plate 65 through a screw or other connecting pieces, and the hard supporting plate 65 is a metal plate or a wood plate or other hard plates. In order to further improve the use effect, the universal adjusting mechanism 6 is connected to the transverse support rod 3 through the connecting seat 61 thereof in a laterally movable manner, that is, the universal adjusting mechanism 6 can drive the foot rest 5 to move along the transverse support rod 3. In this embodiment, the connecting seat 61 is composed of a seat cover and a support arm integrally arranged on the seat cover, the connecting seat 61 is slidably sleeved on the transverse support rod 3 through the seat cover, meanwhile, a slot hole is arranged on the support arm, the universal joint 62 is movably arranged in the slot hole, a positioning knob 64 is arranged on the seat cover of the connecting seat 61, and the connecting seat 61 is fixed on the transverse support rod 3 through the positioning knob 64 after being adjusted to the use position. In order to ensure the reliable fixing of the connecting seat 61, a metal pressing sheet is arranged at the front end of the positioning knob 64, and the contact area between the metal pressing sheet and the transverse supporting rod 3 is increased, so that the fixing effect is better. In addition, the universal adjusting mechanism 6 may be configured such that the universal joint 62 is directly connected to the transverse support rod 3 without the connecting seat 61, and then fixed by the locking knob 63 connected to the transverse support rod 3, and a sliding groove may be formed in the transverse support rod 3 in order to allow the foot rest 5 to move transversely along the transverse support rod 3, and the universal joint 62 is installed in the sliding groove. For the convenience of traction adjustment, the longitudinal support rod 2 is a support rod capable of being adjusted in a telescopic mode. The telescopic adjusting support rod comprises a movable sleeve 21 arranged on the support 1, an adjusting sleeve 22 inserted in the movable sleeve 21, an adjusting screw 23 arranged at the lower part in the movable sleeve 21 and in threaded connection with the lower end of the adjusting sleeve 22, and an adjusting handle 24 arranged on the adjusting screw 23 and rotatably connected to the lower end of the movable sleeve 21, wherein a locking mechanism 7 is arranged on the support 1, the movable sleeve 21 is fixed on the support 1 through the locking mechanism 7 after being adjusted to the use position, and the bracket 4 is connected to the upper end of the adjusting sleeve 22 through a joint 8. As shown in the figure, a through hole is longitudinally formed in the support 1, the movable sleeve 21 is movably inserted into the through hole, a plug is arranged at the lower end of the adjusting sleeve 22, a threaded through hole is formed in the center of the plug, and the adjusting screw 23 is in threaded connection with the threaded through hole. When the longitudinal support rod 2 is used, the upward extending length of the movable sleeve 21 is firstly adjusted, the movable sleeve 21 is locked through the locking mechanism 7 after being adjusted to a proper position, then the adjusting screw 23 is screwed through the adjusting handle 24, and the up-and-down movement of the adjusting sleeve 22 is realized through the adjusting screw 23, so that the traction adjustment is realized. In order to make the use of the locking mechanism 7 reliable, the locking mechanism 7 comprises a cam rotatably connected to the frame 1 and a knob connected to the cam, the cam being located outside the movable sleeve 21, i.e. the cam is rotated by the knob and pressed against the outer wall of the movable sleeve 21 to lock the movable sleeve 21. In order to further improve the use effect, the two transverse support rods 3 are respectively connected to the bracket 1 in an up-and-down swinging manner. In this embodiment, a position on the bracket 1 for connecting with the transverse support rod 3 is provided with a limit groove 11, one end of the transverse support rod 3 is hinged in the limit groove 11, and the transverse support rod 3 can only swing from bottom to top to reach a horizontal state through the limitation of the limit groove 11.

While the present invention has been described by way of examples, and not by way of limitation, other variations of the disclosed embodiments, as would be readily apparent to one of skill in the art, are intended to be within the scope of the present invention, as defined by the claims.

Claims

1. The utility model provides a femoral neck fracture art is with tractor that resets, includes support (1), sets up longitudinal support pole (2) on support (1) and sets up on support (1) and be located two horizontal bracing pieces (3) on longitudinal support pole (2) both sides, the upper end of longitudinal support pole (2) is provided with and is used for supporting bracket (4) at the perineum position, be provided with foot support (5), its characterized in that on two horizontal bracing pieces (3) respectively: the foot support (5) is connected to the transverse supporting rod (3) through a universal adjusting mechanism (6); the universal adjusting mechanism (6) is connected to the transverse supporting rod (3) through a connecting seat (61) in a transversely movable mode, a positioning knob (64) is mounted on the connecting seat (61), and the connecting seat (61) is locked on the transverse supporting rod (3) through the positioning knob (64) after being adjusted to be in a use position; the universal adjusting mechanism (6) comprises a connecting seat (61) arranged on the transverse supporting rod (3), and a universal joint (62) and a locking knob (63) which are arranged on the connecting seat (61), the foot support (5) is fixedly connected onto the universal joint (62), and the universal joint (62) is fixed on the connecting seat (61) through the locking knob (63) after the using position is adjusted.

2. The reduction distractor for femoral neck fracture surgery according to claim 1, characterized in that: the universal adjusting mechanism (6) is provided with a hard supporting plate (65), and the foot support (5) is fixedly connected to the hard supporting plate (65).

3. The reduction distractor for femoral neck fracture surgery according to claim 1, characterized in that: the longitudinal supporting rod (2) is a supporting rod capable of being adjusted in a telescopic mode.

4. The reduction distractor for femoral neck fracture surgery according to claim 3, characterized in that: the telescopic adjusting support rod comprises a movable sleeve (21) arranged on the support (1), an adjusting sleeve (22) inserted in the movable sleeve (21), an adjusting screw rod (23) arranged in the movable sleeve (21) and connected with the lower end of the adjusting sleeve (22) in a threaded manner, and an adjusting handle (24) arranged on the adjusting screw rod (23) and rotatably connected to the lower end of the movable sleeve (21), wherein a locking mechanism (7) is arranged on the support (1), the movable sleeve (21) is fixed on the support (1) through the locking mechanism (7) after being adjusted to be in use position, and the bracket (4) is connected to the upper end of the adjusting sleeve (22).

5. The reduction retractor for femoral neck fracture surgery according to claim 4, wherein: the locking mechanism (7) comprises a cam which is rotatably connected to the bracket (1) and a knob which is connected with the cam, and the cam is positioned on the outer side of the movable sleeve (21).

6. The reduction retractor for femoral neck fracture surgery according to claim 4, wherein: the bracket (4) is connected to the adjusting sleeve (22) by a joint (8).

7. The reduction distractor for femoral neck fracture surgery according to claim 1, characterized in that: the two transverse supporting rods (3) are respectively connected to the bracket (1) in an up-and-down swinging manner.

8. The reduction distractor for femoral neck fracture surgery according to claim 7, characterized in that: the support is characterized in that a limiting groove (11) is formed in the position, connected with the transverse supporting rod (3), of the support (1), one end of the transverse supporting rod (3) is hinged into the limiting groove (11), and the transverse supporting rod (3) is enabled to swing from bottom to top to reach a horizontal state through limitation of the limiting groove (11).