Positive and lateral position perspective fixing device in ankle joint operation

Abstract

The anterior and lateral position perspective fixing device in the ankle joint operation comprises a foot sole restraining plate and a shank restraining groove plate, the foot sole restraining plate and the shank restraining groove plate are integrally connected, a dorsiflexion deformation notch is reserved in the connecting position of the foot sole restraining plate and the shank restraining groove plate, and inclined strut assemblies are arranged on the two sides of the foot sole restraining plate and the two sides of the shank restraining groove plate. The inclined supporting assembly comprises a first inclined supporting plate and a second inclined supporting plate, the other end of the first inclined supporting plate is hinged to the second inclined supporting plate and locked to the second inclined supporting plate through a locking nut, a lateral rotation preventing supporting plate is fixed to the outer side of the bottom of the shank restraining part, and the two sides of the lateral rotation preventing supporting plate extend out of the two sides of the shank restraining groove plate. The device is made of a carbon fiber material, X-ray imaging is avoided, meanwhile, positive and lateral positions of the ankle joint of a patient can be fixed, the ankle joint is prevented from rotating leftwards or rightwards, and the ankle joint is allowed to be subjected to dorsal flexion in the positive and lateral position state so as to obtain positive and lateral X-images of the ankle joint at other angles.

Description

Technical Field

[0001] The utility model relates to the field of orthopedic imaging auxiliary tools, in particular to an anterior and lateral perspective fixing device during ankle joint surgery. Background Art

[0002] The ankle joint is the joint that bears the most weight in the human body. During exercise, the ankle joint can bear more than five times the weight of the human body. With the change of human lifestyle, more and more people participate in various sports, and ankle injury is one of the most common sports injuries. Various ankle sports injuries have gradually become an important disease that affects people's quality of life and sports ability.

[0003] Ankle diseases are receiving more and more attention, and the incidence of ankle fractures is also increasing year by year. The mechanism of occurrence is complex, which has a great impact on the patient's ankle joint function. If not treated in time, it is easy to cause traumatic arthritis. Most ankle fractures require surgical treatment, which usually uses open reduction and plate or screw internal fixation. During the operation, repeated fluoroscopy is often required to determine whether the fracture is reduced and the position of the plate and screws.

[0004] During ankle surgery, the patient is under anesthesia and is unable to cooperate in completing standard ankle joint AP and lateral fluoroscopic radiographs. That is to say, the patient's ankle joint will be in a left or right rotation state due to anesthesia and cannot maintain the AP or lateral position. When medical staff use their hands to straighten the patient's ankle joint, their phalanges will block the patient's ankle joint X-ray imaging. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery. The device is made of carbon fiber material and will not image X-rays. At the same time, it can fix the patient's ankle joint in anteroposterior and lateral positions to prevent the ankle joint from rotating to the left or right. The device can make the ankle joint be in a 90° position with the toes facing upward, so as to obtain standard anteroposterior and lateral X-ray films of the ankle joint; in addition, the device can also allow the ankle joint to dorsiflex in the anteroposterior and lateral positions to obtain anteroposterior and lateral X-ray images of the ankle joint at other angles; the device can avoid repeated fluoroscopy of the ankle joint and shorten the operation time, save costs, reduce unnecessary radiation damage, and provide assistance for the smooth operation of ankle fracture surgery.

[0006] In order to achieve the above technical effects, the utility model is implemented through the following technical solutions:

[0007] An intraoperative anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery comprises a plantar restraint plate and a calf restraint slot plate, the plantar restraint plate and the calf restraint slot plate are integrally connected, a dorsiflexion deformation notch is reserved at the connection between the plantar restraint plate and the calf restraint slot plate, diagonal brace assemblies are arranged on both sides of the plantar restraint plate and the calf restraint slot plate, the diagonal brace assembly comprises a first diagonal brace plate and a second diagonal brace plate, one end of the first diagonal brace plate is hinged to the hinge plate of the plantar restraint plate, the other end of the first diagonal brace plate is hinged to the second diagonal brace plate and locked to the second diagonal brace plate by a locking nut, the other end of the second diagonal brace plate is hinged to the outer side wall of the calf restraint slot plate, an anti-lateral rotation support plate is fixed to the outer side of the bottom of the calf restraint part, and both sides of the anti-lateral rotation support plate extend from both sides of the calf restraint slot plate.

[0008] Furthermore, an arc-shaped protractor is provided at the dorsiflexion deformation notch, one end of the arc-shaped protractor is fixed on the calf restraint groove plate, and the other end of the arc-shaped protractor is a free end and the free end is fitted with the side of the plantar restraint plate. The arc-shaped protractor can measure the rotation angle of the plantar restraint plate to obtain the dorsiflexion angle of the ankle joint.

[0009] Furthermore, a threaded rod is fixed to the upper end of the first diagonal brace, a locking hole is formed at the lower end of the second diagonal brace, and the threaded rod extends from the locking hole and is threadedly connected to the locking nut.

[0010] Furthermore, a tension screw is fixed to the outer side of the bottom of the calf restraint slot plate, and the number of the tension screws is not less than three. A tension hole is opened on the anti-lateral rotation support plate, and the tension screw extends from the tension hole and is threadedly connected to the fastening nut.

[0011] Furthermore, a plurality of binding straps are pasted with nylon on the sole restraint plate and the calf restraint slot plate, and a suspension hole is opened on the top of the calf restraint slot plate, in which a neck suspension strap is fixed.

[0012] Furthermore, the foot restraint plate, the calf restraint groove plate, the diagonal brace assembly and the anti-lateral rotation support plate are all made of carbon fiber material.

[0013] The beneficial effects of the utility model are as follows: the device is made of carbon fiber material and will not image X-ray imaging. At the same time, it can fix the patient's ankle joint in the anteroposterior and lateral positions to prevent the ankle joint from rotating to the left or right. The device can make the ankle joint be in a 90° position with the toes facing up, so as to obtain standard anteroposterior and lateral ankle joint X-rays; in addition, the device can also allow the ankle joint to dorsiflex in the anteroposterior and lateral positions (the corresponding dorsiflexion angle can be displayed when dorsiflexed) to obtain anteroposterior and lateral X-ray images of the ankle joint at other angles; the device can avoid repeated fluoroscopy of the ankle joint and shorten the operation time, save costs, reduce unnecessary radiation damage, and provide assistance for the smooth operation of ankle fractures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the anteroposterior and lateral fluoroscopic fixation device during ankle joint surgery;

[0016] Figure 2 It is a schematic diagram of the composition and structure of the anteroposterior and lateral fluoroscopic fixation device during ankle joint surgery;

[0017] Figure 3 It is a schematic diagram of the rear view structure of the anteroposterior and lateral fluoroscopic fixation device during ankle joint surgery.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1-foot restraint slot plate, 2-calf restraint slot plate, 3-anti-lateral rotation support block, 4-diagonal support assembly, 5-dorsiflexion deformation notch, 6-binding strap, 7-neck suspension strap, 8-arc protractor, 11-hinge plate, 21-tension screw rod, 22-suspension hole, 31-tension hole, 32-fastening nut, 41-first diagonal support plate, 42-second diagonal support plate, 43-threaded rod, 44-locking nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-2As shown, the intraoperative anteroposterior and lateral perspective fixation device for ankle joint surgery includes a plantar restraint plate 1 and a calf restraint slot plate 2. The plantar restraint plate 1 adopts a flat plate structure, which is convenient for the ankle joint with a Kirschner wire inserted; the plantar restraint plate 1 is integrally connected with the calf restraint slot plate 2, and a dorsiflexion deformation notch 5 is reserved at the connection between the plantar restraint plate 1 and the calf restraint slot plate 2. Both sides of the plantar restraint plate 1 and the calf restraint slot plate 2 are provided with a diagonal support assembly 4, and the diagonal support assembly 4 includes a first diagonal support plate 41 and a second diagonal support plate 42. One end of the first diagonal support plate 41 is hinged to the hinge plate 11 of the plantar restraint plate 1, and the other end of the first diagonal support plate 41 is hinged to the second diagonal support plate 42 and locked on the second diagonal support plate 42 through a locking nut 44. The other end of the second diagonal support plate is hinged to the outer side wall of the calf restraint slot plate, and an anti-lateral rotation support plate is fixed to the outer side of the bottom of the calf restraint part, and both sides of the anti-lateral rotation support plate extend from both sides of the calf restraint slot plate.

[0022] In order to more intuitively obtain the angle of ankle joint in anteroposterior and lateral dorsiflexion, an arc-shaped protractor 8 is provided at the dorsiflexion deformation notch in this embodiment. One end of the arc-shaped protractor 8 is fixed on the calf constraint groove plate 2, and the other end of the arc-shaped protractor 8 is a free end and the free end is fitted with the side of the plantar constraint plate 1. The arc-shaped protractor 8 can measure the rotation angle of the plantar constraint plate 1 to obtain the dorsiflexion angle of the ankle joint.

[0023] like Figure 2 As shown, a threaded rod is fixed to the upper end of the first diagonal support, a locking hole is opened at the lower end of the second diagonal support, and the threaded rod extends out of the locking hole and is threadedly connected to the locking nut.

[0024] like Figure 3 As shown, a tension screw 21 is fixed to the outer side of the bottom of the calf restraint groove plate 2, and the number of the tension screws 21 is not less than three. A tension hole 31 is opened on the anti-lateral rotation support plate 3, and the tension screw 21 extends from the tension hole and is threadedly connected to the fastening nut 32.

[0025] In order to better fix the ankle joint, a plurality of binding straps 6 are pasted with nylon on the sole restraint plate 1 and the calf restraint slot plate 2. A suspension hole 22 is opened on the top of the calf restraint slot plate 2, and a neck suspension strap 7 is fixed in the suspension hole 22.

[0026] In this embodiment, the foot restraint plate 1, the calf restraint groove plate 2, the diagonal brace assembly 4 and the anti-lateral rotation support plate 3 are all made of carbon fiber material.

[0027] The specific application of the working of this device is as follows: the sole of the patient's foot is placed in the sole restraint plate 1, and the calf is placed in the calf restraint slot plate 2, and the sole of the patient's foot and the calf are respectively tied and fixed with the binding belt 6, and then the locking nut 44 of the diagonal support assembly 4 is loosened, and the first diagonal support plate or the second diagonal support plate is rotated to make the two parallel. At this time, the sole restraint plate and the calf restraint slot plate are in a 90° vertical state, and the patient's ankle joint is also in a 90° anteroposterior position. The calf restraint slot plate 2 is perpendicular to the bed body under the support of the anti-lateral rotation support plate 3. At this time, X-ray radiation can be performed to obtain anteroposterior and lateral X-ray image data in the state where the ankle joint is at 90° and the toes are facing upward; when it is necessary to adjust the dorsiflexion angle according to the situation, the calf restraint slot plate 2 is pressed toward the toe side, and the locking nut 44 of the diagonal support assembly 4 is tightened after the angle is appropriate, so as to obtain anteroposterior and lateral X-ray image data of the ankle joint at the corresponding angle.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An ankle joint intraoperative anteroposterior and lateral fluoroscopic fixation device, comprising a sole restraint plate and a calf restraint slot plate, wherein the sole restraint plate and the calf restraint slot plate are integrally connected, characterized in that: A dorsiflexion deformation notch is reserved at the connection between the sole restraint plate and the calf restraint slot plate, and diagonal brace assemblies are provided on both sides of the sole restraint plate and the calf restraint slot plate. The diagonal brace assembly includes a first diagonal brace plate and a second diagonal brace plate, one end of the first diagonal brace plate is hinged to the hinge plate of the sole restraint plate, the other end of the first diagonal brace plate is hinged to the second diagonal brace plate and locked to the second diagonal brace plate through a locking nut, the other end of the second diagonal brace plate is hinged to the outer side wall of the calf restraint slot plate, an anti-lateral rotation support plate is fixed to the outer side of the bottom of the calf restraint slot plate, and both sides of the anti-lateral rotation support plate extend from both sides of the calf restraint slot plate.

2. The anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery according to claim 1, characterized in that: An arc-shaped protractor is provided at the dorsiflexion deformation notch, one end of the arc-shaped protractor is fixed on the calf restraint groove plate, and the other end of the arc-shaped protractor is a free end and the free end is fitted with the side of the sole restraint plate. The arc-shaped protractor can measure the rotation angle of the sole restraint plate to obtain the dorsiflexion angle of the ankle joint.

3. The anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery according to claim 1 or 2, characterized in that: A threaded rod is fixed to the upper end of the first diagonal brace, a locking hole is formed at the lower end of the second diagonal brace, and the threaded rod extends out of the locking hole and is threadedly connected to the locking nut.

4. The anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery according to claim 3, characterized in that: A tension screw is fixed to the outer side of the bottom of the calf restraint slot plate, and the number of the tension screws is not less than three. A tension hole is opened in the anti-lateral rotation support plate, and the tension screw extends from the tension hole and is threadedly connected with the fastening nut.

5. The anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery according to claim 3, characterized in that: A plurality of binding straps are pasted with nylon on the sole restraint plate and the calf restraint slot plate, and a suspension hole is opened on the top of the calf restraint slot plate, in which a neck suspension strap is fixed.

6. The anteroposterior and lateral fluoroscopic fixation device for ankle joint surgery according to claim 3, characterized in that: The foot sole restraint plate, the calf restraint groove plate, the diagonal brace assembly and the anti-lateral rotation support plate are all made of carbon fiber material.

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