CN209984224U

CN209984224U - Ankle joint CT scanning external fixator

Info

Publication number: CN209984224U
Application number: CN201920014790.7U
Authority: CN
Inventors: 郭奇虹
Original assignee: First Hospital of Lanzhou University
Current assignee: First Hospital of Lanzhou University
Priority date: 2019-01-05
Filing date: 2019-01-05
Publication date: 2020-01-24
Anticipated expiration: 2029-01-05

Abstract

The utility model relates to an ankle joint CT scanning external fixator, which comprises a lower limb fixing device and a foot fixing device; the lower limb fixing device comprises a transverse plate, a sliding groove is formed in the transverse plate, clamping devices which are bilaterally symmetrical are arranged at two ends of the sliding groove, each clamping device comprises a fixing plate arranged at the outer end of the corresponding sliding groove, a rotating screw rod penetrates through the upper thread of each fixing plate, a first rotating handle is arranged at the outer end of each rotating screw rod, the inner end of each rotating screw rod is movably sleeved in a bearing, an arc-shaped clamping plate is fixed at the inner end of each bearing, the opening of each clamping plate is inward, a sliding block is arranged at; the foot fixing device comprises a vertical plate vertically arranged at one end of the transverse plate, a foot fixing plate is arranged in the middle of the vertical plate, a fixing belt is arranged on the front surface of the foot fixing plate, and an angle adjusting device is arranged at the upper end of the foot fixing plate; the utility model discloses it is fixed reliable, adjust the convenience, be applicable to different patients' fixed, improved CT scanning quality.

Description

Ankle joint CT scanning external fixator

Technical Field

The utility model relates to the field of medical equipment, specifically an ankle joint CT scanning external fixator.

Background

CT examination is one of the important means for diagnosing diseases, and the accuracy of the CT examination result is directly affected by the stable positioning of the scanned body. During the CT scanning of the ankle joints, the symmetry of the ankle joints at two sides of most patients is difficult to maintain in the scanning process, if the ankle joints at two sides are asymmetric, the two sides of the tissue structure of the ankle joint of the image obtained by the scanning layer are obviously asymmetric, the comparison at two sides cannot be carried out, great trouble is brought to the diagnosis work of a diagnosis doctor of an image department, and particularly for patients with congenital variation, the correctness of the judgment of the final result of the doctor of the image department can be directly influenced. Resulting in missed diagnosis, misdiagnosis and even no diagnosis at all, thereby directly influencing the correct development of the next diagnosis and treatment work of the patient. To overcome this.

Currently, 2 methods are generally adopted for solving the problems: 1. the patient is asked to deliberately maintain bilateral ankle symmetry; 2. the patient can wind the rope around the sole of the foot by using articles such as the rope, the two ends of the rope are held by both hands, and the rope wound around the sole is tensioned by the patient to promote the relative fixation of the foot. Both methods can achieve certain effects, but still cannot meet the requirements of diagnosticians.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ankle joint CT scanning external fixator in order to solve the aforesaid problem.

In order to achieve the above object, the utility model provides a following technical scheme: an ankle joint CT scanning external fixator comprises a lower limb fixing device and a foot fixing device; the lower limb fixing device comprises a transverse plate, a sliding groove is formed in the transverse plate, clamping devices which are bilaterally symmetrical are arranged at two ends of the sliding groove, each clamping device comprises a fixing plate arranged at the outer end of the corresponding sliding groove, a rotating screw rod penetrates through the upper thread of each fixing plate, a first rotating handle is arranged at the outer end of each rotating screw rod, the inner end of each rotating screw rod is movably sleeved in a bearing, an arc-shaped clamping plate is fixed at the inner end of each bearing, the opening of each clamping plate is inward, a sliding block is arranged at; the foot fixing device comprises a vertical plate vertically arranged at one end of the transverse plate, a foot fixing plate is arranged at the middle of the vertical plate, the lower end of the foot fixing plate is movably fixed on the vertical plate through a rotating shaft, a fixing belt is arranged on the front side of the foot fixing plate, and an angle adjusting device is arranged at the upper end of the foot fixing plate.

Furthermore, the number of the clamping devices is two, and the clamping devices are arranged along the length direction of the transverse plate.

Furthermore, an L-shaped connecting plate is arranged on one side of the bottom of the transverse plate, a screw rod penetrates through the lower end of the connecting plate in a threaded mode, a clamping piece is arranged at the upper end of the screw rod, and a second rotary handle is arranged at the lower end of the screw rod.

Further, angle adjusting device including setting up the style of calligraphy of falling U locating plate in foot fixed plate upper end, locating plate one end is located the sole fixed plate, the other end is located the riser back, the locating lever is worn to be equipped with in the activity on the locating plate, the locating lever outer end is provided with the pull handle, be connected with the cover between pull handle and the locating plate and establish the reset spring on the locating lever, be provided with a plurality of locating holes on the riser, a plurality of locating holes use the pivot to be convex distribution on the riser as the centre of a circle, be provided with the fixed orifices on the foot fixed plate, the foot fixed plate inserts locating hole.

Furthermore, the vertical plate is a semicircular arc-shaped plate, and the lower end of the foot fixing plate is arc-shaped.

Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses it is fixed reliable, adjust the convenience, be applicable to different patients' fixed, improved CT scanning quality.

Drawings

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

fig. 2 is a top view of the present invention;

fig. 3 is a schematic structural view of the angle adjusting spindle.

The reference numbers in the figures are: 1-transverse plate, 2-sliding groove, 3-fixing plate, 4-rotating screw, 5-first rotating handle, 6-bearing, 7-clamping plate, 8-sliding block, 9-vertical plate, 10-foot fixing plate, 11-rotating shaft, 12-fixing band, 13-connecting plate, 14-screw, 15-clamping plate, 16-second rotating handle, 17-positioning plate, 18-positioning rod, 19-pulling handle, 20-reset spring, 21-positioning hole and 22-fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, an external fixator for ankle joint CT scanning comprises a lower limb fixing device and a foot fixing device; the lower limb fixing device comprises a transverse plate 1, a sliding groove 2 is formed in the transverse plate 1, bilaterally symmetrical clamping devices are arranged at two ends of the sliding groove 2, each clamping device comprises a fixing plate 3 arranged at the outer end of the corresponding sliding groove 2, a rotating screw rod 4 penetrates through the fixing plate 3 in a threaded manner, a first rotating handle 5 is arranged at the outer end of the corresponding rotating screw rod 4, the inner end of the corresponding rotating screw rod 4 is movably sleeved in a bearing 6, an arc-shaped clamping plate 7 is fixed at the inner end of the bearing 6, the opening of the clamping plate 7 is inward, a sliding block 8 is arranged at the lower end of; the fixing device of foot is including the riser 9 of perpendicular setting one end on diaphragm 1, and the middle part is provided with foot's fixed plate 10 on riser 9, and foot's fixed plate 10 lower extreme is fixed on riser 9 through pivot 11 activity, and foot's fixed plate 10 openly is provided with fixed band 12, and fixed band 12 includes that two are fixed respectively in foot's fixed plate 10 both sides, pastes swing joint through the magic between two fixed bands 12, and foot's fixed plate 10 upper end is provided with angle adjusting device.

The utility model discloses during the use, put patient's low limbs between two clamp plates 7, the foot supports on foot fixed plate 10, fix the foot on foot fixed plate 10 through fixed band 12, rotatory first swing handle 5, clamp plate 7 moves to patient's low limbs along spout 2, two clamp plates 7 press from both sides tight fixedly to patient's low limbs both sides, to the patient that has foot outward turning or internal rotation, adjust foot fixed plate 10 through angle adjusting device earlier and fix suitable angle on riser 9, fix the foot again.

Specifically, the two clamping devices are arranged along the length direction of the transverse plate 1, the arrangement of the two clamping devices increases the lower limb fixing effect and improves the stability, one side of the bottom of the transverse plate 1 is provided with an L-shaped connecting plate 13, a screw 14 is arranged at the lower end of the connecting plate 13 in a threaded manner, a clamping piece 15 is arranged at the upper end of the screw 14, a second rotating handle 16 is arranged at the lower end of the screw 14, the connecting plate 13 is clamped at the side surface of the CT bed plate, the second rotating handle 16 is rotated, the fixer is fixed on the CT bed plate through the clamping piece 15 in a clamping manner, the angle adjusting device comprises an inverted U-shaped positioning plate 17 arranged at the upper end of the foot fixing plate 10, one end of the positioning plate 17 is positioned on the foot fixing plate 10, the other end of the vertical plate 9 is positioned on the back surface of the vertical plate, a positioning rod 18 is movably arranged, be provided with a plurality of locating holes 21 on riser 9, a plurality of locating holes 21 use pivot 11 to be circular arc distribution on riser 9 as the centre of a circle, be provided with fixed orifices 22 on the foot fixed plate 10, foot fixed plate 10 inserts locating hole 21 and fixed orifices 22 activity through locating lever 18 and fixes on riser 9, outside pulling pull handle 19, locating lever 18 is taken out in fixed orifices 22 and locating hole 21, can rotate foot fixed plate 10, loosen behind pull handle 19, locating lever 18 moves to foot fixed plate 10 under reset spring 20 effect, locating lever 18 inserts corresponding locating hole 21 and fixed orifices 22, the realization is fixed foot fixed plate 10 on different angles, riser 9 be semi-circular arc board, foot fixed plate 10 lower extreme is convex.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An ankle joint CT scanning external fixator which is characterized in that: comprises a lower limb fixing device and a foot fixing device;

the lower limb fixing device comprises a transverse plate (1), a sliding chute (2) is arranged on the transverse plate (1), clamping devices which are bilaterally symmetrical are arranged at two ends of the sliding chute (2), each clamping device comprises a fixing plate (3) arranged at the outer end of the sliding chute (2), a rotating screw (4) penetrates through the fixing plate (3) in a threaded manner, a first rotating handle (5) is arranged at the outer end of the rotating screw (4), the inner end of the rotating screw (4) is movably sleeved in a bearing (6), an arc-shaped clamping plate (7) is fixed at the inner end of the bearing (6), the opening of the clamping plate (7) is inward, a sliding block (8) is arranged at the lower end of the clamping plate (7), and the sliding;

the foot fixing device comprises a vertical plate (9) vertically arranged at one end of a transverse plate (1), a foot fixing plate (10) is arranged in the middle of the vertical plate (9), the lower end of the foot fixing plate (10) is movably fixed on the vertical plate (9) through a rotating shaft (11), a fixing belt (12) is arranged on the front side of the foot fixing plate (10), and an angle adjusting device is arranged at the upper end of the foot fixing plate (10).

2. The ankle joint CT scanning external fixator of claim 1, wherein: the two clamping devices are arranged along the length direction of the transverse plate (1).

3. The ankle joint CT scanning external fixator of claim 1, wherein: an L-shaped connecting plate (13) is arranged on one side of the bottom of the transverse plate (1), a screw (14) penetrates through the lower end of the connecting plate (13) in a threaded mode, a clamping piece (15) is arranged at the upper end of the screw (14), and a second rotating handle (16) is arranged at the lower end of the screw (14).

4. The ankle joint CT scanning external fixator of claim 1, wherein: the angle adjusting device comprises an inverted U-shaped positioning plate (17) arranged at the upper end of a foot fixing plate (10), one end of the positioning plate (17) is located on the foot fixing plate (10), the other end of the positioning plate is located on the back face of a vertical plate (9), a positioning rod (18) is movably arranged on the positioning plate (17), a pull handle (19) is arranged at the outer end of the positioning rod (18), a reset spring (20) sleeved on the positioning rod (18) is connected between the pull handle (19) and the positioning plate (17), a plurality of positioning holes (21) are formed in the vertical plate (9), the plurality of positioning holes (21) are distributed on the vertical plate (9) in a circular arc shape by taking a rotating shaft (11) as the circle center, fixing holes (22) are formed in the foot fixing plate (10), and the foot fixing plate (10) is movably fixed on the vertical.

5. The ankle joint CT scanning external fixator of claim 1, wherein: the vertical plate (9) is a semicircular arc-shaped plate, and the lower end of the foot fixing plate (10) is arc-shaped.