Lower limb lifting device
Technical Field
The invention relates to a medical instrument for surgical use, in particular to a lower limb lifter.
Background
In clinic, for a patient with injured lower limbs, the patient often needs to be raised for treatment after an operation, because a special treatment instrument is generally matched with a hospital bed for use, the structure is complex, the price is expensive, and the popularization is difficult in a common hospital, at present, most measures adopted in the common hospital are to pad articles such as pillows or cushions below the affected limbs, but in the treatment process, the affected limbs of the patient often can be adjusted due to the height discomfort, so that the pillow or cushion needs to be added below the affected limbs after the affected limbs of the patient are lifted, on one hand, the pain of the patient can be brought due to the overlarge action amplitude, and on the other hand, the height adjustment is often not in place at one step and is troublesome.
Disclosure of Invention
Aiming at the defects, the invention provides the lower limb lifting device which is flexible to adjust, convenient to use and wide in application range.
The technical scheme for solving the technical problems is as follows:
a lower limb lifting device comprises supports which are arranged in bilateral symmetry, and a lifting beam is connected between the left support and the right support in a relatively rotating manner, and is characterized in that the lifting beam is provided with external threads, a movable nut is connected to the upper threads of the lifting beam in a threaded manner, a lifter is arranged below the movable nut in a lifting manner, the lifter is connected with a lifting rope in a transmission manner, and the lower end of the lifting rope is connected with a supporting plate; the lifter comprises a shell, the shell is a hollow cylinder which is transversely arranged, the shell is connected with the movable nut, the middle part of the shell is a curved side wall, two ends of the side wall are top walls, two ends of the side wall of the shell are respectively provided with a rope outlet, and a through hole is correspondingly formed in the middle of the two top walls of the shell; the relative swivelling joint has the pivot in the shell, the upper end of lifting rope passes out rope mouth and the pivot is fixed continuous, and the lifting rope winding is outside the pivot, and the central transmission of pivot is connected with the transfer line, and the axis of transfer line coincides with the axis of pivot, and the outer end of transfer line is worn out to the shell outside through wearing the mouth to fixedly connected with adjusting position pole.
The lower limb lifting device is characterized in that the transmission rod is movably inserted in the center of the rotating shaft from left to right, and the longitudinal section of the transmission rod is in a shape like a straight line, a cross, a Y or a T.
The lower limb lifting device is characterized in that the outer surface of the top wall of the shell is inwards sunken to form a plurality of clamping grooves, and the adjusting and positioning rod is correspondingly buckled with the clamping grooves.
The lower limb lifting device is characterized in that the transmission rod penetrates through the center of the rotating shaft, two ends of the transmission rod are respectively connected with an adjusting positioning rod, clamping grooves are respectively formed in the outer surfaces of two top walls of the shell, and only one side of the adjusting positioning rod is buckled in the clamping grooves at most.
The lower limb lifting device is characterized in that the extension line of the clamping groove passes through the rotation center of the transmission rod, and the adjusting and positioning rod is connected to the rotation center of the transmission rod.
The lower limb lifter is characterized in that the clamping grooves are radially distributed outside the top wall of the shell by taking the rotation center of the transmission rod as the center.
The invention installs the lifter on the bracket, and the lifting adjustment of the supporting plate can be carried out by controlling the lifter. The invention can be used without additionally arranging a sickbed, can be taken at any time, can be stored when not used, has simple structure and low manufacturing cost, and can expand the application range.
The adjustment of the lifter is realized through the rotation of the rotating shaft, and the lifter is flexible in adjustment and convenient to use.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a left side view of the present invention;
fig. 3 is a schematic top view of the lift of fig. 1;
FIG. 4 is a front sectional view of the riser of FIG. 1;
FIG. 5 is a left side view of the structure of FIG. 4;
3 FIG. 3 6 3 is 3 a 3 schematic 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3
FIG. 7 is a schematic sectional view of the structure of FIG. 4B-B;
FIG. 8 is a schematic cross-sectional view of C-C of FIG. 4;
FIG. 9 is a schematic view showing an operation state when the lift of FIG. 4 is used to lift and lower a pallet;
FIG. 10 is a schematic view of the operation of positioning the rotary shaft using the other positioning rod of FIG. 4;
fig. 11 is a left side view of the hanger and the retainer of fig. 1.
In the drawings:
1. a rotating rod; 2. a support; 3. a hanging beam; 4. a rope outlet; 5. a rotating shaft; 6. moving the nut; 7. a hanger; 8. clamping and supporting; 9. a housing; 10. a transmission rod; 11. adjusting the positioning rod; 12. a lifting rope; 13. a support plate; 14. a slot; 15. a card slot; 16. and (6) puncturing the opening.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 11, the lower limb lifting device comprises supports 2 which are arranged in bilateral symmetry, the supports 2 are in an A shape, and reinforcing ribs are fixedly connected to the left support 2 and the right support 2 together. The left support and the right support 2 are connected with a hanging beam 3 in a relative rotating mode, the hanging beam 3 is installed at the top end of the support 2 through a bearing, two free ends of the hanging beam 3 are fixedly connected with rotating rods 1, and the rotating rods 1 are located on the outer side of the support 2. The lifting beam 3 is provided with external threads, the lifting beam 3 is in threaded connection with a movable nut 6, a lifter is hung below the movable nut 6 and comprises a shell 9, the shell 9 is a hollow cylinder which is transversely arranged, the shell 9 is connected with the movable nut 6, the middle part of the shell 9 is a curved side wall, two ends of the side wall are top walls, two ends of the side wall of the shell 9 are respectively provided with a rope outlet 4, and the middle of the two top walls of the shell 9 is correspondingly provided with a through hole 16; the relative swivelling joint has pivot 5 in the shell 9, is connected with lifting rope 12 on the pivot 5, and lifting rope 12 twines outside pivot 5, and lifting rope 12 passes out rope mouth 4 and is connected with layer board 13, and layer board 13 is the arc, and the downwarping in the middle of the layer board 13. The center of the rotating shaft 5 is connected with a transmission rod 10 in a transmission manner, the central axis of the transmission rod 10 is superposed with the central axis of the rotating shaft 5, and the outer end of the transmission rod 10 penetrates out of the shell 9 through a penetrating port 16 and is fixedly connected with an adjusting positioning rod 11.
In the embodiment, the transmission rod 10 is movably inserted in the center of the rotating shaft 5 from left to right, the length of the transmission rod 10 is greater than that of the rotating shaft 5, and the longitudinal section of the transmission rod 10 is in a shape like a Chinese character ' yi ', a cross ', a Y ' or a T ' so as to transmit force to the rotating shaft 5. The transmission rod 10 penetrates through the center of the rotating shaft 5, and two ends of the transmission rod 10 are respectively connected with an adjusting positioning rod 11. The outer surfaces of the two top walls of the shell 9 are respectively inwards recessed to form a plurality of clamping grooves 15, the extension lines of the clamping grooves 15 pass through the rotation center of the transmission rod 10, and the clamping grooves 15 are radially distributed outside the top wall of the shell 9 by taking the rotation center of the transmission rod 10 as the center. The adjusting and positioning rod 11 is connected to the rotation center of the transmission rod 10. The adjusting positioning rod 11 and the transmission rod 10 are T-shaped or L-shaped, the adjusting positioning rod 11 is correspondingly buckled with the clamping groove 15, and at most, only one adjusting positioning rod 11 on one side is buckled in the clamping groove 15.
When the lower limbs of a patient are normally raised, one of the adjusting and positioning rods 11 is buckled in the clamping groove 15 on the same side, the other adjusting and positioning rod 11 is suspended, when the height of the affected limb needs to be adjusted, the suspended adjusting and positioning rod 11 is pushed forcibly, the other adjusting and positioning rod 11 is separated from the clamping groove 15, the transmission rod 10 is in a free state, the adjusting and positioning rod 11 is rotated, the transmission rod 10 drives the rotating shaft 5 to rotate, and the lifting rope 12 is collected and released, so that the lifting of the supporting plate 13 is realized. The whole operation is convenient and fast, and the structure is simple.
In this embodiment, a hanging member 7 is fixedly connected to the lower surface of the movable nut 6, the side projection shape of the hanging member 7 is an inverted "T" shape, a clamping support 8 is fixedly connected to the housing 9 of the lifter, a slot 14 is formed in the clamping support 8 and arranged along the length direction of the housing 9 and capable of being inserted into the hanging member 7, the side projection shape of the slot 14 is also an inverted "T" shape, and the slot 14 is provided with an upward opening and an opening on one of the outer sides. Before the patient uses the invention, the hanging piece 7 and the clamping support 8 are separated, the lifter is taken down, the hanging rope 12 is placed to be long enough, then the lower limb ground supporting plate 13 of the patient is placed, then the clamping support 8 is connected on the hanging piece 7, the rotating shaft 5 is slowly rotated, the hanging rope 12 is retracted a little bit, and the pain of the patient caused by overlarge action can be avoided.