CN211610017U

CN211610017U - Lateral position lower limb resetting device for femoral intramedullary nail operation

Info

Publication number: CN211610017U
Application number: CN201921833550.6U
Authority: CN
Inventors: 连晓东; 张迪; 陈伟; 金霖; 张英泽; 侯志勇
Original assignee: Third Hospital of Hebei Medical University
Current assignee: Third Hospital of Hebei Medical University
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-10-02
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a lateral position low limbs resetting means for femoral intramedullary nail operation, it includes bottom plate, thigh tray, shank fixed block, guide bar and pulls the lead screw, the bottom plate is fixed at the lateral part of operation table and is located lateral position patient's buttock the place ahead, the thigh tray is fixed on the bottom plate and is filled up the lower part at patient upper portion thigh, the shank fixed block is placed on the bottom plate and is pieced into the L shape with the thigh tray, and patient's upper portion shank is fixed on shank fixed block upper portion, the guide bar with pull the lead screw and be on a parallel with patient upper portion thigh, the guide bar pass on the shank fixed block guiding hole and with thigh tray fixed connection, pull in the screw hole on the lead screw in shank fixed block and push up on the thigh tray. The utility model discloses reliably pull its thighbone when patient lateral position bends the leg state, the intramedullary nail can be followed the thighbone near-end and implanted, also can follow the distal end and implant, traction when having solved the thighbone near-end and implanting the intramedullary nail problem that resets well.

Description

Lateral position lower limb resetting device for femoral intramedullary nail operation

Technical Field

The utility model relates to a lower limb traction reduction device suitable for femoral intramedullary nail implantation operation, belonging to the technical field of orthopedic medical instruments.

Background

The femoral fracture is a common clinical fracture, and due to strong muscle strength of the leg, the patient often has a short deformity under the traction of the muscle after the femoral fracture, and the reduction, the recovery of the length and the effective maintenance are difficult in the operation. If the patient can not be anatomically reduced during the operation, complications such as malformation healing and poor lower limb force line can occur after the operation, thereby causing traumatic arthritis or osteoarthritis and seriously affecting the limb function and the life quality of the patient.

Intramedullary nail fixation is a common treatment method for femoral fracture, and intraoperative traction is an important means for reducing femoral fracture and recovering the length of lower limbs. At present, two assistants are generally needed to help traction a patient during an intramedullary nail implanting operation, the two assistants respectively hold the near end and the far end of a femur to reposition the femur, however, the method cannot stably maintain fracture reposition and lower limb length, and the repositioning effect is not ideal, so that the treatment effect is influenced; moreover, the two assistants can crowd the space of the operator and influence the operation of the operator.

The traction device is adopted to reset fractured thighbone to overcome the defects, but the existing traction device not only needs to occupy the upper space of the lower limb of a patient to influence the operation of the operation, but also requires the patient to adopt a supine position, an intramedullary nail can only be implanted from the far end of the thighbone, and when the proximal end of the thighbone of the patient is fractured and the intramedullary nail needs to be implanted from the proximal end, the traditional traction device cannot meet the use requirements. Therefore, it is necessary to design a lower limb reduction device suitable for proximal intramedullary nail operation of femur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lateral position low limbs resetting means for femoral intramedullary nail operation to solve the traction reduction problem when the intramedullary nail is implanted to the proximal femur end, aiming at the drawback of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a lateral position low limbs resetting means for femoral intramedullary nail operation, includes bottom plate, thigh tray, shank fixed block, guide bar and pulls the lead screw in the constitution, the lateral part at the operation table is fixed to the bottom plate and is located lateral position patient's buttock the place ahead, the thigh tray is fixed on the bottom plate and is filled up the lower part at patient upper portion thigh, the shank fixed block is placed on the bottom plate and is pieced together into the L shape with the thigh tray, and patient's upper portion shank is fixed on shank fixed block upper portion, the guide bar with pull the lead screw and be on a parallel with patient upper portion thigh, the guide bar pass the guiding hole on the shank fixed block and with thigh tray fixed connection, pull in the screw hole on the lead screw in shank fixed block and push.

Above-mentioned lateral position low limbs resetting means for femoral intramedullary nail operation, be connected through angle adjustment mechanism between thigh tray and the bottom plate, angle adjustment mechanism is including location axle, locking screw and lock nut, the location axle is fixed in the one end that the thigh tray is close to the operation table and the locating hole on the bottom plate is inserted, locking screw passes on the bottom plate and fixes a position the coaxial arc bolt hole of axle, and the one end fixed connection of operation table is kept away from to locking screw's upper end and thigh tray, and the lower extreme passes through screw thread and lock nut cooperation.

Above-mentioned lateral position low limbs resetting means for femoral intramedullary nail operation, be connected through tilting mechanism between bottom plate and the operation table, tilting mechanism includes upset arm and latch lock, the upset arm is located the bed board lower part of operation table and the long limit of perpendicular to operation table, and the one end of upset arm is passed through the horizontal rotation axle and is connected with the bed board rotation of operation table, the other end and bottom plate fixed connection, the latch lock is fixed on the bottom plate, and the spring bolt of latch lock is corresponding with the lockhole that sets up at the bed board lateral part of operation table.

Above-mentioned a lateral position low limbs resetting means for thighbone intramedullary nail operation, thigh tray is equipped with pelvis support head with the relative one end upper portion of operation table, pelvis support head is close to the abdominal one side of patient and is equipped with the pelvis pin that corresponds with patient's pelvis front side.

According to the lateral position lower limb restoration device for the femoral intramedullary nail operation, the upper part of the shank fixing block is provided with at least two shank binding bands which are arranged along the length direction of the shank fixing block.

According to the lateral position lower limb resetting device for the femoral intramedullary nail operation, the upper surfaces of the thigh supporting block and the shank fixing block are arc concave surfaces.

The lateral position lower limb resetting device for the femoral intramedullary nail operation is characterized in that the two guide rods are symmetrically arranged on two sides of the traction screw rod.

According to the lateral position lower limb resetting device for the femoral intramedullary nail operation, the end part of the traction screw rod is provided with the hand wheel.

According to the lateral position lower limb resetting device for the femoral intramedullary nail operation, one end of the guide rod, which is far away from the thigh supporting block, is provided with the anti-falling limiting disc corresponding to the shank fixing block.

According to the lateral position lower limb resetting device for the femoral intramedullary nail operation, the locking nut is a butterfly nut.

The utility model discloses reliably pull its thighbone when patient lateral position bends the leg state, the intramedullary nail can be followed the thighbone near-end and implanted, also can follow the distal end and implant, traction when having solved the thighbone near-end and implanting the intramedullary nail problem that resets well. And all parts are not higher than the lower limbs of the patient, so that the operation is not influenced, and the operation quality and the operation efficiency are improved. Furthermore, the utility model discloses still have advantages such as simple structure, low cost, dependable performance.

Drawings

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

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

FIG. 2 is a schematic view of the structure of the base plate;

FIG. 3 is a schematic view of the connection of the base plate to the operating bed;

FIG. 4 is a state in which the base plate is turned over to below the operating bed;

FIG. 5 is a bottom view of the thigh rest;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a schematic view of the usage state of the present invention.

The reference numbers in the figures are as follows: 1. an operating table comprises 2 parts of a pelvis stop lever, 3 parts of a thigh supporting block, 4 parts of a bottom plate, 5 parts of a shank binding band, 6 parts of a shank fixing block, 7 parts of a traction screw rod, 8 parts of a guide rod, 9 parts of a positioning hole, 10 parts of an arc-shaped bolt hole, 11 parts of a positioning shaft, 12 parts of a pelvis supporting head, 13 parts of a locking screw rod, 14 parts of a locking nut, 15 parts of a fracture patient, 16 parts of a turnover arm, 17 parts of a latch lock.

Detailed Description

Referring to fig. 1 to 7, the utility model mainly comprises a thigh supporting block 3, a bottom plate 4, a shank binding band 5, a shank fixing block 6, a traction screw rod 7, a guide rod 8, a positioning shaft 11, a locking screw rod 13, a locking nut 14, a turning arm 16 and a latch 17. The bottom plate 4 is provided with a positioning hole 9 matched with the positioning shaft 11 and an arc bolt hole 10 corresponding to the locking screw 13, and one end of the thigh supporting block 3 close to the patient is provided with a pelvis supporting head 12 and a pelvis stop lever 2.

The patient of fracture 15 lies on one's side on operation table 1 and the leg that takes place the fracture is located the upper portion of normal leg, bottom plate 4 sets up at operation table 1 lateral part and is located patient's buttock the place ahead, thigh tray 3 and shank fixed block 6 on bottom plate 4 piece into the L shape, thigh tray 3 is fixed on bottom plate 4, shank fixed block 6 can freely slide on bottom plate 4, patient's lower part leg (normal leg) straightens, the upper portion thigh (the thigh of femoral fracture promptly) is placed on thigh tray 3, the shank passes through shank bandage 5 to be fixed on shank fixed block 6. Two guide rods 8 penetrate through guide holes in the shank fixing block 6 and are fixed on the thigh supporting block 3, the traction screw rod 7 is screwed into a threaded hole in the shank fixing block 6 and abuts against the thigh supporting block 3, the shank fixing block 6 can slide along the guide rods 8 in the direction far away from the thigh supporting block 3 by rotating the traction screw rod 7 in the positive direction, and the shank fixing block 6 drives the shanks of the patient to move together, so that traction on the thighs is achieved. During the traction process, the pelvis supporting head 12 and the pelvis stop lever 2 on the thigh supporting block 3 are pressed against the pelvis of the patient, so that the pelvis is positioned and prevented from moving towards the direction of traction force.

In order to ensure the traction effect, the upper thighs and the lower legs of the patient should be perpendicular to each other, and the thighs and the trunk should also be perpendicular to each other, so that the axes of the thigh supporting blocks 3 and the lower leg fixing blocks 6 are perpendicular to each other, and the axis of the thigh supporting block 3 should also be perpendicular to the side of the operating table 1. But because some patients are fat, the thigh probably can not be perpendicular with the truck, consequently the utility model discloses a thigh tray 3 is connected with bottom plate 4 through angle adjustment mechanism, angle adjustment mechanism comprises location axle 11, locking screw 13 and lock nut 14, location axle 11 is fixed in the one end that thigh tray 3 is close to operation table 1 and inserts the locating hole 9 on bottom plate 4, locking screw 13 passes arc bolt hole 10 on bottom plate 4, its upper end and thigh tray 3 keep away from the one end fixed connection of operation table 1, lower extreme screw in lock nut 14, when thigh tray 3 rotates around location axle 11, locking screw 13 can slide in arc bolt hole 10, through changing the position of locking screw 13 in arc bolt hole 10, can adjust the angle of thigh tray 3, make it adapt to the patient of different sizes. After the angle of the thigh supporting block 3 is adjusted properly, the thigh supporting block 3 can be locked on the bottom plate 4 by screwing the locking nut 14.

In order not to influence other functions of the operating bed 1, the bottom plate 4 is connected with a bed plate of the operating bed 1 through the turnover mechanism, the turnover mechanism comprises a turnover arm 16 and a latch 17, one end of the turnover arm 16 is rotatably connected with the bottom surface of the bed plate of the operating bed 1 through a horizontal rotating shaft, the other end of the turnover arm is fixed on the bottom plate 4, when the reset device is not used, the bottom plate 4 and other parts arranged on the upper part of the bottom plate can rotate to the lower part of the bed plate of the operating bed 1 (as shown in fig. 4), and when the reset device is used, the bottom plate 4 and other parts arranged on the upper part of the bottom plate 4 rotate to a high position (as shown. Two latches 17 are provided and are respectively installed on both sides of the bottom plate 4. When the bottom plate 4 rotates to the lower part of the bed plate of the operating bed 1, in order to prevent the shank fixing block 6 from slipping off, an anti-dropping limiting disc can be arranged at the end part of the guide rod 8.

The upper surfaces of the shank fixing block 6 and the thigh supporting block 3 are made into arc concave surfaces, so that the stability of the lower limbs can be improved, and the operation quality can be ensured. The heights of the shank fixing block 6 and the thigh supporting block 3 can be adjusted through the gaskets so as to adapt to patients with different body types.

The utility model discloses a use method:

1. the device is rotated to a high position and positioned through a latch 17, the locking nut 14 is screwed after the angle of the thigh supporting block 3 is adjusted, and the distance between the shank fixing block 6 and the thigh supporting block 3 is adjusted, so that the thigh and the shank of a patient are respectively placed on the thigh supporting block 3 and the shank fixing block 6;

2. the shank of the patient is fixed on the shank fixing block 6 by the shank bandage 5, the tightness of the shank bandage 5 is moderate, and the smooth blood circulation of the patient is ensured, and the shank cannot move randomly (as shown in fig. 7);

3. a hand wheel at the end part of the traction screw rod 7 is operated to pull the thigh of the patient;

4. and performing an intramedullary nail implantation operation, and implanting the intramedullary nail into the femoral medullary cavity from the proximal end or the distal end of the femur.

The device can restore the thighbone without occupying the operation space, is favorable for improving the operation quality and the operation efficiency, and is suitable for being popularized and applied in various medical institutions.

Claims

1. A lateral position lower limb resetting device for femoral intramedullary nail operation is characterized by comprising a base plate (4), a thigh supporting block (3), a shank fixing block (6), a guide rod (8) and a traction screw rod (7), the bottom plate (4) is fixed at the side part of the operating bed (1) and is positioned in front of the hip of the patient in the lateral position, the thigh supporting block (3) is fixed on the bottom plate (4) and is padded at the lower part of the upper thigh of the patient, the shank fixing block (6) is arranged on the bottom plate (4) and is spliced with the thigh supporting block (3) into an L shape, the upper part of the shank fixing block (6) is fixed with the upper shank of the patient, the guide rod (8) and the traction screw rod (7) are parallel to the thigh on the upper part of the patient, the guide rod (8) penetrates through a guide hole in the shank fixing block (6) and is fixedly connected with the thigh supporting block (3), and the traction screw rod (7) is screwed into a threaded hole in the shank fixing block (6) and abuts against the thigh supporting block (3).

2. The lateral recumbent position lower limb resetting device for femoral intramedullary nail surgery is characterized in that the thigh supporting block (3) is connected with the bottom plate (4) through an angle adjusting mechanism, the angle adjusting mechanism comprises a positioning shaft (11), a locking screw rod (13) and a locking nut (14), the positioning shaft (11) is fixed at one end, close to the operating bed (1), of the thigh supporting block (3) and is inserted into a positioning hole in the bottom plate (4), the locking screw rod (13) penetrates through an arc-shaped bolt hole (10) in the bottom plate (4) and coaxial with the positioning shaft (11), the upper end of the locking screw rod (13) is fixedly connected with one end, far away from the operating bed (1), of the thigh supporting block (3), and the lower end of the locking screw rod is matched with the locking nut (14) through threads.

3. The lateral position lower limb resetting device for femoral intramedullary nail surgery is characterized in that the bottom plate (4) is connected with the operating bed (1) through a turnover mechanism, the turnover mechanism comprises a turnover arm (16) and a latch lock (17), the turnover arm (16) is positioned at the lower part of a bed plate of the operating bed (1) and is perpendicular to the long edge of the operating bed (1), one end of the turnover arm (16) is rotatably connected with the bed plate of the operating bed (1) through a horizontal rotating shaft, the other end of the turnover arm is fixedly connected with the bottom plate (4), the latch lock (17) is fixed on the bottom plate (4), and a lock tongue of the latch lock (17) corresponds to a lock hole formed in the side part of the bed plate of the operating bed (1).

4. The lower limb reduction device for the lateral position of the femoral intramedullary nail operation according to claim 3, wherein a pelvis supporting head (12) is arranged at the upper part of one end of the thigh supporting block (3) opposite to the operating bed (1), and a pelvis stop lever (2) corresponding to the front side of the pelvis of the patient is arranged at one side of the pelvis supporting head (12) close to the abdomen of the patient.

5. The lateral recumbent lower limb reduction device for intramedullary nail femur surgery according to claim 4, characterized in that the upper part of the shank fixation block (6) is provided with at least two shank straps (5) arranged along the length direction of the shank fixation block (6).

6. The lateral recumbent lower limb reduction device for femoral intramedullary nail surgery according to claim 5, wherein the upper surfaces of the thigh supporting block (3) and the shank fixing block (6) are both arc-shaped concave surfaces.

7. The lateral position lower limb reduction device for intramedullary nail operation of femur of claim 6, characterized in that the two guide rods (8) are symmetrically arranged on both sides of the traction screw (7).

8. The lateral recumbent lower limb reduction device for the intramedullary nail operation of the femur of claim 7, characterized in that the end of the traction screw (7) is provided with a hand wheel.

9. The lateral position lower limb restoration device for the femoral intramedullary nail operation is characterized in that one end of the guide rod (8) far away from the thigh supporting block (3) is provided with an anti-falling limiting disc corresponding to the shank fixing block (6).

10. The lateral recumbent lower limb reduction device for intramedullary nail operations of the femur of claim 2, wherein said locking nut (14) is a wing nut.