CN213641142U

CN213641142U - Tibia distance and heel rear fusion steel plate

Info

Publication number: CN213641142U
Application number: CN202021505136.5U
Authority: CN
Inventors: 徐向阳
Original assignee: SHANGHAI SIDIDE BUSINESS CONSULTING CENTER
Current assignee: SHANGHAI SIDIDE BUSINESS CONSULTING CENTER
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-07-09
Anticipated expiration: 2030-07-27

Abstract

The disclosure relates to a tibialis distance and heel rear fusion steel plate, in particular to the technical field of medical equipment; the fusion steel plate comprises a fusion steel plate tibia near-end cadre part, a fusion steel plate tibia far-end part, a transition section crossing the rear of the ankle joint, a fusion steel plate calcar bone part, a transition section crossing the rear of the subtalar joint posterior joint surface and a fusion steel plate calcar bone part; the fusion steel plate is provided with a plurality of fixing holes for fixing the fusion steel plate on the tibial bone cadre part, the tibial metaphysis part, the talus and the calcaneus; the shank is fixed stably and reliably with the integration, and the design of the steel plate is adopted, so that the strength is high, and the early function exercise is facilitated.

Description

Tibia distance and heel rear fusion steel plate

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to shank is with rear fusion steel sheet.

Background

Ankle joint osteoarthritis is one of the most common osteoarthritis of the ankle, and is usually secondary. Some ankle osteoarthritis is clinically associated with subtalar arthritis. The patient mainly shows that the ankle joint and the subtalar joint are swollen and painful around, the ankle joint and the subtalar joint are limited in movement, and the daily life of the patient is seriously affected due to the ankle and the subtalar pain after loading. For severe ankle joint osteoarthritis and subtalar arthritis, a tibialis-talus fusion operation can be considered, and the ankle joint and the subtalar joint are fixed simultaneously through steel plates around the ankle joint after the ankle joint and the degenerative osteochondral of the joint surface behind the subtalar joint are cleaned and removed in an operation. Approaches to the tibiofemoral fusion procedure typically include a lateral approach through the fibula, a combined medial and lateral approach, and a posterior approach, with the lateral approach through the fibula being the most widely used, while posterior approaches are relatively less used, and may allow for posterior approaches for patients with poor lateral soft tissue conditions of the ankle joint, osteoarthritis, and deformities, primarily located posteriorly. However, at present, no rear steel plate specially used for tibialis-calcaneal fusion exists clinically in China, the bent low-notch reconstruction steel plate used in the operation is not easy to dissect and the steel plate at the later stage is easy to break, fixing screws at the far-end talus and calcaneus are limited, the ankle joint and the subtalar joint are not firmly fixed, and the bone is easy to heal at the later stage.

SUMMERY OF THE UTILITY MODEL

To the not enough among the prior art, this disclosed aim at provides a shank is with rear fusion steel sheet, has solved among the prior art and has used the low notch after bending to rebuild the steel sheet and not only be difficult for dissecting the easy fracture problem of later stage steel sheet.

The purpose of the disclosure can be realized by the following technical scheme: the utility model provides a shin is apart from fusing steel sheet with rear includes fuses the steel sheet main part, fuses the steel sheet main part and is used for fixing human shin apart from the calcaneus.

Furthermore, the fusion steel plate main body comprises a proximal tibia cadre part, a distal tibia part, a transition section crossing the rear of the ankle joint, a calcaneus part, a transition section crossing the rear of the posterior joint surface of the subtalar joint and a calcaneus part; wherein the fusion steel plate tibia near end part, the fusion steel plate tibia far end part, the fusion steel plate calcar bone part and the fusion steel plate are matched with the tibia surface form of the tibia far end part along the side curve of the bone part.

Furthermore, a plurality of first fixing holes are formed in the proximal end part of the fusion steel plate tibia; the first fixing hole is designed as a combination hole for inserting a cortical bone screw or a locking screw.

Furthermore, a plurality of second fixing holes are formed in the distal end part of the fusion steel plate tibia; the second fixing hole is internally provided with internal threads and is provided with a cone structure above the internal threads.

Furthermore, a plurality of third fixing holes are formed in the fusion steel plate bone spacer part; an internal thread is arranged in the third fixing hole, and a cone structure is arranged above the third fixing hole; the third fixing holes are distributed in a horizontally aligned mode.

Furthermore, a plurality of fourth fixing holes formed in the calcaneus part of the fusion steel plate; an internal thread is formed in the third fixing hole, and a cone structure is formed above the third fixing hole; and a plurality of third fixing holes are distributed in a horizontally aligned manner.

Furthermore, the edge of the fused steel plate main body adopts a fillet design.

Furthermore, the fusion steel plate main body is made of a titanium alloy material.

The beneficial effects of this disclosure are:

the tibial base fusion fixation device enables the tibial base fusion fixation to be more stable and reliable.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is an overall structural schematic diagram of an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

As shown in fig. 1, the tibialis posterior fusion steel plate comprises a fusion steel plate main body 7, wherein the fusion steel plate main body 7 is thin-walled.

Fuse the medial surface of steel sheet main part 7 and the shin of human body apart from the surface morphology phase-match that follows, it is concrete, the medial surface that fuses steel sheet main part 7 is according to human shin bone distal end, the talus rear, the calcaneus curve designs, what adopt is the dissection type design, fuse steel sheet main part 7 can be better with bone surface morphology phase-match, through so designing, ankle joint in the art of being convenient for, the joint dissects the reduction under the distance, need not carry out the preflex to the steel sheet in the art, avoided in the screw fixation process to the further destruction of sclerotin because of the steel sheet is not obedient, take place the fracture even, be particularly suitable for the osteoporosis patient, make things convenient for the operation, shorten the operation time.

In some disclosures, the fusion steel plate main body 7 is made of a titanium alloy steel plate, and the fusion steel plate 7 is made of a high-strength material such as a titanium alloy, which facilitates early functional exercise after surgery.

In some disclosures, the thickness of the fused steel plate body 7 is 2.8 mm.

In some disclosures, the edge of the fusion steel plate main body 7 adopts an edge rounding design, so that the stimulation to the soft tissue of a human body is reduced, and the postoperative rehabilitation is more facilitated.

The upper part of the fusion steel plate main body 7 is a tibia near-end part 1, and when the fusion steel plate main body 7 is fixed on a human body, the tibia near-end part 1 is in contact with the tibia of the human body.

The proximal tibia part 1 is provided with a plurality of first fixing holes 8, and the first fixing holes 8 are used for placing cortical bone screws or locking screws; in the illustration of the present disclosure, there are 3 first fixing holes 8.

In some disclosures, the number of the first fixing holes 8 is multiple, and by using the multiple first fixing holes 8, the stress of the screw can be shared, so that the stress of the steel plate is reduced, and the service life of the fused steel plate is prolonged.

Fuse steel sheet main part 7 and include shin bone distal end portion 2, wherein shin bone distal end portion 2 is in the lower extreme of shin bone near-end cadre 1, and when fusing steel sheet main part 7 and fixing on the human body, shin bone distal end portion 2 is close to talus department, and the curve of shin bone distal end portion 2 and the shin bone surface form phase-match of human shin bone distal end more do benefit to the play and fuse the supporting effect of steel sheet.

A plurality of second fixing holes 9 are formed in the distal tibia portion 2, and the distal tibia portion 2 is fixed through a screw structure and the second fixing holes 9.

In some disclosures, the second fixing hole 9 formed at the distal tibia part 2 is internally provided with an internal thread, the upper part of the second fixing hole is tapered, and the fixing screw cap is completely matched with the taper, so that the stimulation of the screw bulge to human tissues can be prevented.

The fusion steel plate main body 7 comprises a transition section 3 crossing the rear part of the ankle joint, wherein the transition section 3 crossing the rear part of the ankle joint is arranged at the lower end of the far end part 2 of the tibia, when the fusion steel plate main body 7 is fixed on a human body, the transition section 3 crossing the rear part of the ankle joint is positioned between the tibia and the talus, and the transition section 3 crossing the rear part of the ankle joint is matched with the bone body shape between the tibia and the talus, so that further damage to the bone in the screw fixing process due to the fact that a steel plate is not in compliance is avoided, and even fracture is avoided.

Fuse steel sheet main part 7 including fusing steel sheet apart from bone portion 4, wherein fuse steel sheet apart from bone portion 4 and at the lower extreme of the changeover portion 3 of strideing across ankle joint rear, when fusing steel sheet main part 7 and fixing on the human body, fuse steel sheet apart from bone portion 4 and talus department and hug closely partial portion 4, fuse the curve of steel sheet apart from bone portion 4 and diaphysis form phase-match, avoided further destruction to the sclerotin in the screw fixation process because of the steel sheet is not complied, even the fracture takes place.

Fuse and be provided with a plurality of third fixed orifices 10 on the steel sheet apart from bone portion 4, through a plurality of third fixed orifices and screw structure, will fuse steel sheet bone portion 4 and fix on the talus.

In some disclosures, the third fixing hole 10 is internally designed with an internal thread and is designed with a taper thereon, and the fixing screw cap is perfectly matched with the taper on the third fixing hole 10 to prevent the screw from protruding to increase the stimulation to the human tissue.

In some disclosures, two third fixing holes 10 are opened on the fusion steel plate calcar portion 4, and the two third fixing holes 10 of the fusion steel plate calcar portion 4 enable screws to hold the talus more stably and firmly.

In some disclosures, 2 third fixing holes 10 formed in the fusion steel plate calcar portion 4 are horizontally aligned, and the space of the calcar portion is reasonably utilized by the horizontally aligned arrangement mode of the two third fixing holes 10.

The fusion steel plate main body 7 comprises a transition section 5 spanning behind the posterior joint surface of the subtalar joint, wherein the transition section 5 spanning behind the posterior joint surface of the subtalar joint is arranged at the lower end of the fusion steel plate calcaneus part 4, when the fusion steel plate main body 7 is fixed on a human body, the transition section 5 spanning behind the posterior joint surface of the subtalar joint is positioned between the talus and the calcaneus, and the curve of the transition section 5 spanning behind the posterior joint surface of the subtalar joint is matched with the form of the corpus ossis, so that further damage to sclerotin and even fracture in the screw fixing process due to non-compliance of the steel plate are avoided.

The lower end part of the fusion steel plate main body 7 is provided with a fusion steel plate calcaneus part 6, when the fusion steel plate main body 7 is fixed on a human body, the fusion steel plate calcaneus part 6 is positioned at the calcaneus, the shape curve of the fusion steel plate calcaneus part 6 is matched with the shape of a bone body, and further damage to the bone in the screw fixing process due to non-compliance of the steel plate, even fracture is avoided.

Be provided with a plurality of fourth fixed orifices 11 on fusing steel sheet with bone portion 6, will fuse steel sheet with bone portion 6 through fourth fixed orifices 11 and screw structure and fix on the calcaneum.

In some disclosures, three fourth fixing holes 11 are formed in the fused steel plate calcaneus portion 6, and the three fourth fixing holes 11 in the fused steel plate calcaneus portion 6 enable screws to hold the calcaneus more stably and firmly.

In some disclosures, three fourth fixing holes 11 formed in the calcaneus portion 6 of the fusion steel plate are horizontally aligned, and the space of the calcaneus portion is reasonably utilized by the horizontally aligned arrangement mode of the three fourth fixing holes 11.

In some disclosures, the fourth fixing hole 11 is internally threaded and is respectively designed with a taper above the fourth fixing hole, and the fixing screw cap is completely matched with the taper on the fourth fixing hole 10 to prevent the screw bulge from increasing the stimulation to the human tissue.

Principle of operation

The titanium alloy steel plate is adopted, so that the strength is high, the early-stage functional exercise is facilitated, the postoperative recovery time is shortened, and the better fixing effect on osteoporosis is achieved; the design of edge rounding is adopted, so that the stimulation to soft tissues is reduced; the fusion steel plate adopts an anatomical design, so that anatomical reduction of ankle joints and subtalar joints in the operation is facilitated, and pre-bending of the steel plate is not needed in the operation; the steel plate is equipped with three fixed orifices, calcaneus portion is equipped with three fixed orifices, and the horizontal direction distributes for the screw is more stable, firm to the control of talus and calcaneus.

The foregoing illustrates and describes the general principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims.

Claims

1. The utility model provides a tibialis is with rear fusion steel sheet which characterized in that: the tibialis calcaneus fusion steel plate comprises a fusion steel plate main body (7), and the fusion steel plate main body (7) is used for fixing the tibialis calcaneus of a human body;

the fusion steel plate main body (7) comprises a tibia near-end trunk part (1), a fusion steel plate tibia far-end part (2), a transition section (3) crossing the rear part of the ankle joint, a fusion steel plate calcaneus part (4), a transition section (5) crossing the rear part of the posterior joint surface of the subtalar joint and a fusion steel plate calcaneus part (6); the lateral curves of the proximal tibia cadre part (1), the distal fusion steel plate tibia part (2), the distal fusion steel plate tibia part (4) and the calcaneus part (6) are matched with the surface form of the tibia at the distal tibia;

the proximal tibia trunk part (1) is provided with a plurality of first fixing holes (8); the first fixing hole (8) is designed as a combination hole for inserting a cortical bone screw or a locking screw.

2. The tibialis posterior fusion steel plate as claimed in claim 1, wherein: a plurality of second fixing holes (9) are formed in the distal tibia end part (2) of the fusion steel plate; the second fixing hole (9) is internally provided with internal threads and is provided with a cone structure above the internal threads.

3. The tibialis posterior fusion steel plate as set forth in claim 1, wherein: the fusion steel plate bone spacer part (4) is provided with a plurality of third fixing holes (10); the third fixing hole (10) is internally provided with internal threads and is provided with a cone structure above the internal threads.

4. The tibialis posterior fusion steel plate as claimed in claim 3, wherein: the third fixing holes (10) are distributed in a horizontally aligned manner.

5. The tibialis posterior fusion steel plate as claimed in claim 1, wherein: and a plurality of fourth fixing holes (11) are formed in the fusion steel plate heel bone part (6).

6. The tibialis posterior fusion steel plate as claimed in claim 3, wherein: a plurality of the third fixing holes (10) are horizontally aligned and distributed.

7. The tibialis posterior fusion steel plate as set forth in claim 1, wherein: the edge of the fused steel plate main body (7) adopts a fillet design.

8. The tibialis posterior fusion steel plate as set forth in claim 1, wherein: the fusion steel plate main body (7) is made of a titanium alloy material.