CN215384531U

CN215384531U - Minimally invasive universal locking bone plate following system

Info

Publication number: CN215384531U
Application number: CN202120749225.2U
Authority: CN
Inventors: 黄亮达; 吴俊国; 王明海; 洪洋
Original assignee: FIFTH PEOPLE'S HOSPITAL OF SHANGHAI
Current assignee: FIFTH PEOPLE'S HOSPITAL OF SHANGHAI
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2022-01-04
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to the technical field of medical instruments, in particular to a minimally invasive universal locking calcaneus plate system, wherein a calcaneus plate body is respectively provided with a locking hole, a Kirschner wire hole and two universal locking holes, a connecting part between the left part and the right part of the calcaneus plate body is arranged between the two universal locking holes, the width of the connecting part is larger than the width of the left part and the right part of the calcaneus plate, or the thickness of the connecting part can be larger than the thickness of the left part and the right part of the calcaneus plate, the utility model changes the existing one-way locking hole for fixing the talus loading process in the minimally invasive calcaneus plate into the universal locking hole, so that an operator can conveniently adjust the direction of a screw to fix the talus loading process, other holes are still single locking holes, the strength and the stability of the screw fixation are ensured, meanwhile, the design of a hollow locking part can ensure that the operator can more conveniently and accurately fix the talus loading process, and the firm calcaneus plate fixation can reduce the loading exercise time from the original 8-12 weeks to 6-8 weeks, effectively shorten the postoperative recovery period.

Description

Minimally invasive universal locking bone plate following system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a minimally invasive universal locking calcaneus plate system.

Background

The calcaneus fracture accounts for 2% of the total fracture, the traditional calcaneus fracture operation adopts an L-shaped incision on the outer side of the calcaneus to perform incision reduction internal fixation, but the operation has a large skin flap stripping area, and complications such as poor healing, infection and the like easily occur after the operation, so that the existing tarsal sinus minimally invasive incision operation is adopted, and the postoperative infection is reduced.

The calcaneus bone fracture treatment method is characterized in that a calcaneus bone plate is adopted to reset and fix a fracture part in the calcaneus bone fracture treatment, and the loading talus process is used as a basis in the fixation, namely, screws are driven into the outer side wall of the calcaneus bone to penetrate through the minimally invasive calcaneus bone plate, and the calcaneus bone plate is fixed to the loading talus process on the inner side, so that the purposes of strong frame fixation and maintaining stability of a joint surface are achieved, and the step is the most critical step for treating calcaneus fracture.

However, the minimally invasive calcaneal plate used in the currently adopted tarsal sinus minimally invasive incision surgery has few nail holes and single direction, and the screws cannot be effectively fixed to the upturned talus in the fixing process, only can fix the inner side wall of the calcaneus along the set direction of the nail holes and can only be fixed to part of cortical bone, but the screws cannot penetrate through the cortical bone on the inner side wall of the calcaneus, otherwise nerves, blood vessels and tendons in the area are easily damaged.

Cortical bone is a layer of compact bone with hard bone surface, and the more cortical bone the screw is fixed to, the stronger the fixation strength, whereas if only fixed to part of cortical bone, the fixation strength is not strong enough, resulting in a delay in the load bearing time of the patient, increasing the recovery time, and possibly also affecting the prognosis function.

Therefore, the improved minimally invasive heel bone plate which can easily fix the talus processus, ensure the fixation of the heel bone plate to be firm and accelerate the postoperative recovery of a patient is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model breaks through the difficult problems in the prior art, and designs the improved minimally invasive calcaneal plate which can easily fix the talus processus, ensure the fixation of the calcaneal plate to be firm and accelerate the postoperative recovery of a patient.

In order to achieve the purpose, the utility model designs a minimally invasive universal locking bone following plate, which comprises a bone following plate body made of titanium alloy, and is characterized in that: this body of calcaneum plate includes integrated into one piece's left part and right part, is provided with locking hole and ke shi needle hole respectively on the left part of following the lamella body and the right part with the lamella body, and calcaneum plate left part right side position is equipped with universal locking hole respectively with calcaneum plate right part left side position, two for the connecting portion of this body left part of calcaneum plate and right part between the universal locking hole, in order to improve the intensity with the lamella, increase the fixed strength to the initial broken line of calcaneum fracture, the width that sets up connecting portion is greater than the width of calcaneum plate left part, calcaneum plate right part, perhaps can set up the thickness of connecting portion and be greater than the thickness of calcaneum plate left part, calcaneum plate right part.

Correspondingly, the calcaneal plate body is of an M-shaped plate-shaped structure, and the left part and the right part of the calcaneal plate body correspond to the left part and the right part of the M-shaped calcaneal plate body respectively.

Correspondingly, the back surface of the calcaneal plate is matched with the shape of the human calcaneus.

Preferably, four locking holes and a universal locking hole are arranged at the left part of the bone-following plate body, and two locking holes and a universal locking hole are arranged at the right part of the bone-following plate body.

Preferably, four locking holes arranged at the left part of the calcaneus plate body are arranged in an inverted L shape, and two locking holes arranged at the right part of the calcaneus plate body are arranged along a straight line.

Preferably, the kirschner wire hole at the left part of the calcaneal plate body is arranged between the locking holes; the kirschner wire hole at the right part of the calcaneal plate body is arranged between the locking hole and the universal locking hole.

Correspondingly, the utility model also comprises a hollow locking part matched with the universal locking hole.

The universal locking hole allows the hollow locking part to be adjusted in all directions away from the axis, the adjustment angle is 0-15 degrees, the load-carrying talus process is conveniently fixed, and the purpose that the calcaneus plate can be firmly fixed is achieved.

In order to accurately fix the carrier distance process, the utility model also designs a carrier distance process guider, the guider is integrally similar to a claw-shaped structure, one end of the guider is used for fixing the carrier distance process, the other end of the guider is provided with a sleeve fixing universal locking hole, after the guide pin penetrates through the sleeve and is driven into the carrier distance process, the hollow locking part is fixed on the carrier distance process along the guide pin, and therefore, the calcaneus plate is fixed on the carrier distance process.

Compared with the prior art, the utility model changes the one-way locking hole for fixing the talus process in the existing minimally invasive calcaneus plate into the universal locking hole, so that an operator can conveniently adjust the direction of the screw to fix the talus process, other holes are still single locking holes, the strength and stability of screw fixation are ensured, meanwhile, the design of the hollow locking part enables the operator to more conveniently and accurately fix the talus process, the firm fixation of the calcaneus plate enables the postoperative load exercise time to be reduced to 6-8 weeks from the original 8-12 weeks, and the postoperative recovery period is effectively shortened.

Drawings

FIG. 1 is a top view of a heel plate body in a minimally invasive gimbaled locking heel plate system in accordance with an embodiment of the present invention.

FIG. 2 is a side view of the body of a heel plate of a minimally invasive gimbaled locking heel plate system in accordance with an embodiment of the present invention.

FIG. 3 is a schematic view of the assembly of a hollow locking member and a universal locking hole in a minimally invasive universal locking heel bone plate system according to an embodiment of the utility model.

Detailed Description

The utility model is further described with reference to the accompanying drawings, but is not to be construed as being limited thereto.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model.

In the present invention, terms such as "left", "right", "back", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the components or elements of the present invention, and do not particularly indicate any components or elements of the present invention, and are not to be construed as limiting the present invention. The proximal end of the utility model refers to the end close to the operator during the operation, and the distal end refers to the end far away from the operator.

In the present invention, terms such as "fixed", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.

Referring to fig. 1 and 2, the minimally invasive universal locking calcaneal plate system comprises a calcaneal plate body, wherein the calcaneal plate body comprises a left part (1) and a right part (2) of the calcaneal plate which are integrally formed, locking holes 3 and Kirschner wire holes 4 are respectively formed in the left part 1 and the right part 2 of the calcaneal plate, universal locking holes 5 are respectively formed in the right side position of the left part 1 of the calcaneal plate and the left side position of the right part 2 of the calcaneal plate, a connecting part between the left part 1 of the calcaneal plate and the right part 2 of the calcaneal plate is arranged between the two universal locking holes 5, in order to improve the strength of the calcaneal plate and increase the fixing strength of an initial fracture line of the calcaneal bone, the width of the connecting part is set to be greater than the widths of the left part 1 and the right part 2 of the calcaneal plate, or the thickness of the connecting part is set to be greater than the thicknesses of the left part 1 and the right part 2 of the calcaneal plate.

Correspondingly, the calcaneus plate body is integrally of an M-shaped plate-shaped structure, and the left part 1 and the right part 2 of the calcaneus plate correspond to the left side and the right side of the M-shaped calcaneus plate body respectively.

Correspondingly, the shape of the back of the calcaneal plate body is matched with that of the human calcaneus, the matching degree is good, and the clinical response is good.

Correspondingly, the left part 1 of the calcaneus plate is provided with four locking holes 3 and a universal locking hole 5, wherein the four locking holes 3 are arranged in an inverted L shape, the right part 2 of the calcaneus plate is provided with two locking holes 3 and a universal locking hole 5, and the two locking holes 3 are arranged along a straight line.

It should be noted that the number of the locking holes, the universal locking holes and the Kirschner wire holes on the calcaneus plate can be designed according to actual requirements, and the calcaneus plate is generally provided with 8 holes (namely, the total number of the locking holes plus the universal locking holes is 8) and 9 holes (namely, the total number of the locking holes plus the universal locking holes is 9).

Preferably, the kirschner wire holes 4 of the left part 1 of the calcaneus plate are arranged between the locking holes 3; the k-wire hole 4 of the right heel plate portion 2 is disposed between the locking hole 3 and the gimbaled locking hole 5.

Preferably, referring to fig. 3, the universal locking hole 5 allows the hollow locking member 6 to be angularly adjustable in all directions away from the axis, the adjustable angle being 0-15 ° to facilitate fixation of the sustentaculum.

In concrete implementation, still designed year gaging process director and with universal locking hole 5 matched with hollow locking part 6, year gaging process director one end sets up year gaging process fixing device, and the other end then sets up the sleeve of connecting universal locking hole 5, like this alright squeeze into the guide pin in the sleeve earlier with fixed year gaging process back at the director, then squeeze into hollow locking part along the guide pin, reach the purpose of accurate fixed year gaging process.

In specific implementation, the universal locking hole 5 can be provided with a screw hole of 3.5mm, and the corresponding hollow locking part 6 can be a hollow locking screw of 3.5mm, so that the hollow locking screw can be perfectly matched with the universal locking hole 5, and meanwhile, the diameter of the hollow part in the hollow locking screw must be matched with the specification of the guide pin, so that the guide pin can smoothly pass through, for example, in specific implementation, when the guide pin of 1.2mm is used, it must be ensured that the diameter of the hollow part in the hollow locking screw must be greater than or equal to 1.2 mm.

From the above description, the bore diameter of the gimbaled locking hole 5 must match the specifications of the hollow locking part 6, while the size of the hollow part of the hollow locking part 6 must match the specifications of the guide pin in the mating stylus guide.

In the implementation, the heel bone plate of the utility model is divided into two specifications, namely a left specification and a right specification, because the human body is divided into a left foot and a right foot, and the heel bone plate with different hole numbers (namely 8 holes or 9 holes) can be selected according to different conditions, so that four specifications can be designed for patients to select.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a universal locking calcaneus board system of wicresoft, includes with the hone plate body, its characterized in that: the calcaneus plate comprises a calcaneus plate left part (1) and a calcaneus plate right part (2) which are integrally formed, wherein locking holes (3) and Kirschner wire holes (4) are formed in the calcaneus plate left part (1) and the calcaneus plate right part (2) respectively, universal locking holes (5) are formed in the right side position of the calcaneus plate left part (1) and the left side position of the calcaneus plate right part (2) respectively, two connecting portions of the calcaneus plate left part (1) and the calcaneus plate right part (2) are formed between the universal locking holes (5), and the width of each connecting portion is larger than the width of the calcaneus plate left part (1) and the width of the calcaneus plate right part (2).

2. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the whole calcaneus plate body is of an M-shaped plate-shaped structure, and the left part (1) and the right part (2) of the calcaneus plate correspond to the left part and the right part of the M-shaped calcaneus plate body respectively.

3. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the shape of the back of the calcaneal plate body is matched with the shape of the human calcaneus.

4. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the left part (1) of the calcaneus plate is provided with four locking holes (3) and a universal locking hole (5), and the right part (2) of the calcaneus plate is provided with two locking holes (3) and a universal locking hole (5).

5. The minimally invasive gimbal locking calcaneus plate system of claim 4, wherein: the four locking holes (3) arranged at the left part (1) of the calcaneus plate are arranged in an inverted L shape, and the two locking holes (3) arranged at the right part (2) of the calcaneus plate are arranged along a straight line.

6. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the Kirschner wire hole (4) of the left part (1) of the calcaneus plate is arranged between the locking holes (3); the kirschner wire hole (4) of the right part (2) of the calcaneal plate is arranged between the locking hole (3) and the universal locking hole (5).

7. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: and the universal locking device also comprises a hollow locking part (6) matched with the universal locking hole (5).

8. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the universal locking hole (5) allows the hollow locking part (6) to be provided with an angle in each direction away from the axis, and the angle is 0-15 degrees.

9. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: the thickness of the connecting part is greater than the thickness of the left part (1) and the right part (2) of the calcaneus plate.

10. The minimally invasive gimbal locking calcaneus plate system of claim 1, further comprising: still include year talus process director, year talus process director one end sets up year talus process fixing device, and the other end then sets up the sleeve of connecting universal locking hole (5).