CN212037715U

CN212037715U - Upper ankle osteotomy locking plate

Info

Publication number: CN212037715U
Application number: CN202020350527.8U
Authority: CN
Inventors: 赵宏谋; 刘元刚; 吴少辉
Original assignee: Double Medical Technology Inc
Current assignee: Double Medical Technology Inc
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-12-01
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to an ankle osteotomy locking plate, which comprises a plate body conforming to the anatomical form of the inner side of the far end of a tibia, wherein one side of the plate body, which is attached to the far end of the tibia, is defined as a far end, and one side of the plate body, which is attached to a tibia cadre, is defined as a near end; the utility model discloses a fixing plate for ankle bone, including plate body, first fixed orifices, second fixed orifices, the plate body distal end is provided with a plurality of first fixed orifices that are used for fixed shin bone distal end on being provided with on the plate body distal end, and still has an oblique fixed orifices toward the slope of near-end direction setting on the middle part of plate body distal end, be provided with on the near-end of plate body and lay, be used for fixed shin bone cadre a plurality of second fixed orifices according to the preface along this plate body length direction, the plate body still has a combination fixed orifices on the region between first fixed.

Description

Upper ankle osteotomy locking plate

Technical Field

The utility model relates to the field of medical equipment, specifically relate to an ankle upper osteotomy lockplate.

Background

When different degrees of varus ankle osteoarthritis are treated, three common treatment methods are adopted: firstly, a bone fracture plate, an intramedullary nail or a hollow nail are adopted for ankle fusion to form a dead joint, the ankle function of a patient is lost due to the treatment mode, and the influence on later work and life is large; secondly, the ankle joint replacement is adopted, the treatment mode has large wound, poor postoperative functional effect, higher cost, certain service life and difficult later-period revision; both of these surgical approaches are at the cost of autologous joint sacrifice and have high intermediate and distant complications; thirdly, adopting the ankle osteotomy as the most important measure in the ankle arthritis 'ankle protection' treatment, and being a choice capable of keeping the self-body joint and better improving the symptoms. But at present to the osteotomy on the ankle, the coaptation board of adoption be shin bone distal end medial plate or rebuild board or cast board, and this type of coaptation board is all appeared not compliedly in the use, and the incisure is higher, irritates great phenomenon to patient's soft tissue, and the screw hole design of arranging is unreasonable, and fixed region and angle do not reach ideal effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an osteotomy lockplate on ankle to solve the fixed region of current osteotomy lockplate on the ankle and the problem that the angle can not reach the ideal effect.

The specific scheme is as follows:

a locking plate for the upper ankle osteotomy comprises a plate body which conforms to the anatomical form of the inner side of the far end of a tibia, wherein one side of the plate body, which is attached to the far end of the tibia, is defined as a far end, and one side of the plate body, which is attached to a dry part of the tibia, is defined as a near end; the utility model discloses a tibia far-end fixing device, including plate body, first fixed orifices, oblique fixed orifices, a plurality of second fixed orifices, a plurality of first fixed orifices that are used for fixed shin bone distal end are provided with on the plate body distal end, and still have one on the middle part of plate body distal end toward the slope of near-end direction and set up, be provided with on the near-end of plate body and lay according to the preface along this plate body length direction, be used for fixed shin bone cadre, the plate body still has a combination fixed orifices on the region between first fixed orifices and.

In some embodiments, the plate body has a raised portion on a bottom surface of a distal end thereof, the raised portion being located at a periphery of the oblique fixation hole and being capable of pre-drilling into the proximal cortical bone during the operation.

In some embodiments, the plate body is provided with a limited contact cutting groove on the bottom surface of the distal end, and the limited contact cutting groove can reduce the contact area of the plate body and the bone surface.

In some embodiments, the plate body is tapered in thickness from the proximal end to the distal end.

In some embodiments, the first fixing holes are five in number, one of which is located at the distal-most end of the plate body and in which the locking pins are used to fix the medial malleolus apex and avoid the driving of screws into the articular surface, and the remaining four of which are arranged in a generally rectangular configuration and in which the locking pins are locked parallel to the articular surface and fixed to the metaphysis.

In some embodiments, the plate body further has a guide pin hole at the proximal end thereof.

The utility model provides an osteotomy lockplate on ankle compares with prior art has following advantage: the utility model provides an osteotomy lockplate is simultaneously to the dissection shape design of osteotomy in high-order joint outer osteotomy and the low level joint, need not bend moulding in the art, practices thrift operation time to avoid because of bending moulding and leading to the risk that steel sheet intensity reduces, realize the stable locking of osteotomy lockplate on this ankle through the locking nail of multiple different positions and angle moreover, make patient's postoperative can carry out the function exercise in early stage, ensure the stability of osteotomy end, promote the healing of osteotomy end.

Drawings

FIG. 1 shows a schematic view of an upper ankle osteotomy locking plate.

Figure 2 illustrates a cross-sectional schematic view of an upper ankle osteotomy locking plate.

FIG. 3 shows a schematic view of the proximal end of the upper ankle osteotomy locking plate.

Figure 4 shows a schematic view of the distal end of the upper ankle osteotomy locking plate.

Figure 5 shows a schematic view of an upper ankle osteotomy locking plate applied to a high joint outer osteotomy.

Figure 6 shows a schematic view of an upper ankle osteotomy locking plate applied on a low level intra-articular osteotomy.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1-4, the present embodiment provides an ankle osteotomy locking plate, which includes a plate body 10 conforming to the medial anatomy of the distal tibia, the end of the plate body 10 that abuts the distal tibia being defined as a distal end 10b, and the end that abuts the shaft of the tibia being defined as a proximal end 10 a. The plate body 10 is designed professionally for the high-position outer osteotomy and the low-position inner osteotomy of the joint, adopts anatomical design, does not need bending and shaping in an operation, saves operation time, and avoids the risk of reducing the strength of a steel plate due to bending and shaping. In addition, the plate body 10 is designed to be generally thinner from the proximal end to the distal end, so as to reduce irritation to soft tissues.

The distal end of the plate body 10 is provided with a plurality of first fixing holes 101 for fixing the distal end of the tibia, each first fixing hole 101 is used for receiving a locking nail, the middle part of the distal end is further provided with an inclined fixing hole 102 which is obliquely arranged towards the proximal direction, and the inclined fixing hole 102 can be compatible with the locking nails, cortical screws and cancellous screws, can act together with the locking nails of the first fixing holes 101, and simultaneously provides two functions of pressurization and angulation locking support, so that the stability of distal end locking of the plate body 10 is improved.

A plurality of second fixing holes 103 are sequentially formed in the proximal end of the plate body 10 along the length direction of the plate body 10, each second fixing hole 103 is used for receiving a locking nail, and the locking nails in the second fixing holes 103 lock the proximal end of the plate body 10 to the tibia stem.

The middle portion of the plate body 10, in the area between the first fixing hole 101 and the second fixing hole 103, is further provided with a combining fixing hole 104, and the combining fixing hole 104 can facilitate the adjustment of the placement position of the plate body 10, and can provide two functions of pressurization and locking for the plate body 10 at the same time, so that the plate body 10 can be locked on the affected part of the patient more stably. It should be understood that the combination fixing hole 104 is formed by connecting and combining two intersecting fixing holes having different inner diameters as shown in fig. 1.

The osteotomy lockplate on the ankle that this embodiment provided is to the dissection shape design of cutting the bone (fig. 5) outside the high-order joint and cutting the bone (fig. 6) in the low-order joint simultaneously, need not bend moulding in the art, practice thrift operating time, and avoid because of bending moulding and lead to the risk that steel sheet intensity reduces, and the locking nail through multiple different positions and angle realizes the stable locking of cutting the bone lockplate on this ankle moreover, make the patient can carry out the function exercise earlier after the operation, ensure the stability of cutting the bone end, promote the healing of cutting the bone end.

In one embodiment, the bottom surface of the distal end of the plate body 10 has a protrusion 106 located at the periphery of the oblique fixation hole 102, and the protrusion 106 can be pre-drilled into the near-side cortical bone during the operation, so that the plate body 10 can be placed more snugly during the operation.

In one embodiment, the bottom surface of the distal end of the plate body 10 is provided with a limited contact cutting groove 107, and the limited contact cutting groove 107 can reduce the contact area between the plate body 10 and the bone surface, thereby reducing the risk of blood circulation damage caused by the compression of the plate body 10 on the periosteum.

In one embodiment, the first fixing holes 101 are five, one of the first fixing holes 101 is located at the farthest end of the plate body, the locking nail therein is used for fixing the medial malleolus and avoiding the screw driving into the articular surface, and the other four first fixing holes 101 are arranged in a roughly rectangular shape, and the locking nail therein is locked in parallel with the articular surface and fixed on the metaphysis so as to enhance the stability of the locking of the metaphysis.

In one embodiment, the board body 10 further has a guide pin hole 105 at the proximal end thereof, and the guide pin hole 105 is used for receiving a guide pin so as to pre-position the board body 10 in operation.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An ankle osteotomy locking plate, comprising: the tibia far-end anatomical form plate comprises a plate body which conforms to the anatomical form of the inner side of the far end of the tibia, wherein one side of the plate body, which is attached to the far end of the tibia, is defined as a far end, and one side of the plate body, which is attached to the dry part of the tibia, is defined as a near end; the utility model discloses a tibia far-end fixing device, including plate body, first fixed orifices, oblique fixed orifices, a plurality of second fixed orifices, a plurality of first fixed orifices that are used for fixed shin bone distal end are provided with on the plate body distal end, and still have one on the middle part of plate body distal end toward the slope of near-end direction and set up, be provided with on the near-end of plate body and lay according to the preface along this plate body length direction, be used for fixed shin bone cadre, the plate body still has a combination fixed orifices on the region between first fixed orifices and.

2. The ankle osteotomy locking plate as defined in claim 1, wherein: the bottom surface of the far end of the plate body is provided with a convex part positioned at the periphery of the inclined fixing hole, and the convex part can be pre-drilled into near cortical bone in the operation.

3. The ankle osteotomy locking plate as defined in claim 1, wherein: the bottom surface of the far end of the plate body is provided with a limited contact cutting groove, and the limited contact cutting groove can reduce the contact area of the plate body and the bone surface.

4. The ankle osteotomy locking plate as defined in claim 1, wherein: the plate body is arranged to be thinner from the near end to the far end.

5. The ankle osteotomy locking plate as defined in claim 1, wherein: the number of the first fixing holes is five, one of the first fixing holes is located at the farthest end of the plate body, the locking nails in the first fixing holes are used for fixing the medial malleolus tips and avoiding the screws to be driven into the joint surface, the other four first fixing holes are arranged in a roughly rectangular mode, the locking nails in the first fixing holes are locked in parallel to the joint surface and fixed on the metaphysis.

6. The ankle osteotomy locking plate as defined in claim 1, wherein: the end part of the near end of the plate body is also provided with a guide pin hole.