A new type of self-binding fixing rib fracture plate

Abstract

The present application relates to the technical field of new medical devices, and relates to a new type of bone fracture plate for fixing chest rib fractures by self-binding, and the present application comprises an upper fixing plate, a lower binding plate and locking screws, at least two groups of through holes are symmetrically arranged on the long side of the upper fixing plate, at least two groups of fixing grooves are symmetrically arranged on the two side faces of the long side of the upper fixing plate, a notch is arranged on the fixing groove, the lower binding plate is arranged in the fixing groove, the lower binding plate comprises a deformation part and a hook part, the middle part of the deformation part has a deformation space, a threaded hole coaxial with the through hole is arranged in the middle part of the deformation part, the hook part is symmetrically fixed on the two sides of the deformation part, the locking screws are downwardly threaded and connected with the bones and the lower binding plate to force the deformation of the deformation part and drive the hook part to downwardly rotate and be connected with the bones, no additional instruments are needed in the implantation process, the lower binding plate is extruded and resisted by the upper fixing plate under the traction of the screws, automatic deformation is achieved, the lower binding plate is deformed to embrace the ribs, and the upper fixing plate fixes the two ends of the broken bones.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new medical devices, and relates to a new type of bone fracture fixation plate for fixing chest rib fractures. BACKGROUND

[0002] In modern medical treatment of bone fractures, doctors use internal fixation technology very commonly. For chest rib fractures, an internal fixation bone plate system is usually used, which fixes the two ends of the fractured bone by a bone plate and a screw, so as to facilitate the reconstruction of the skeleton of the human body and the recovery of health. The internal fixation of the chest rib often causes the loosening and loosening of the fixed steel plate screw, and other failure conditions, so other ways of auxiliary fixation are needed in addition to the screw fixation.

[0003] Some existing bone plates use cable binding, and some use claw design. The bone plate with claw design usually needs to be bent by using instruments during the operation process to embrace the skeleton for auxiliary fixation, which needs to perform a large-area operation on the patient, is not conducive to the rapid recovery of the patient after the operation, and the use of multiple instruments itself requires higher requirements for the doctors performing the operation, which increases the difficulty and risk of the operation.

[0004] In view of the above, in order to solve the technical problems in the prior art, a new type of bone fracture fixation plate for fixing chest rib fractures is needed. SUMMARY

[0005] The present application provides a new type of bone fracture fixation plate for fixing chest rib fractures to solve the problems in the prior art.

[0006] The purpose of the present application can be achieved by the following technical scheme: a new type of bone fracture fixation plate for fixing chest rib fractures comprises an upper fixing plate, a lower binding plate and a locking screw, the long side of the upper fixing plate is provided with at least two groups of through holes symmetrically, the two side surfaces of the long side of the upper fixing plate are provided with at least two groups of fixing grooves symmetrically, a notch is arranged on the fixing groove, the lower binding plate is arranged in the fixing groove, the lower binding plate comprises a deformation part and a hook part, the middle part of the deformation part has a deformation space, the middle part of the deformation part is provided with a threaded hole coaxial with the through hole, the hook part is fixed symmetrically on the two sides of the deformation part, and the locking screw is threadedly connected to the bone and the lower binding plate downward through the through hole, so as to force the deformation part to deform and drive the hook part to rotate downward and be connected to the bone.

[0007] Further improvement, the cross section of the deformation part is V-shaped, the hook part is connected to the two ends of the deformation part through an arc-shaped connecting part, and the arc-shaped connecting part is located in the fixing groove.

[0008] Further improvement, the through hole is provided with four groups, the fixing groove is provided with four groups on the side surface of the long side of the upper fixing plate, and the axis of each group of fixing grooves and the axis of the corresponding through hole are located on the same plane.

[0009] Further improvement, the gap opening size is arranged in the direction of reducing into the inside of the fixed slot along the lower binding plate.

[0010] Further improvement, the opening arc β of the hook part is 110°-150°, and the opening distance L between the hook part and the deformation part is 3.5-7mm.

[0011] Further improvement, the gap opening directions of the fixed slots arranged symmetrically are oppositely arranged, and the gap openings are all arranged towards the outside of the long side of the upper fixed plate.

[0012] Further improvement, the through hole is a conical countersunk through hole, and the top of the locking screw is provided with a countersunk part.

[0013] Compared with the prior art, the new type of bone plate for fixing rib fracture of the application has the following beneficial effects:

[0014] In the implantation process of the bone plate, no additional instrument is needed, the lower binding plate is automatically deformed by the extrusion resistance of the screw traction force and the upper fixed plate through screw locking, the lower binding plate deformedly embraces the rib and the upper fixed plate fixes the two ends of the broken bone, the connection stability between the bone plate and the bone is ensured, the failure phenomenon such as the loosening of the bone plate is prevented, the implantation method of the existing bone plate is more convenient and safe, the trauma to the patient is very small, the recovery time of the patient after the operation is greatly improved, and the pain is relieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application

[0016] Figure 2 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application Figure 1 Front view structure diagram

[0017] Figure 3 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application

[0018] Figure 4 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application Figure 3 Sectional view structure diagram

[0019] Figure 5 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application

[0020] Figure 6 It is a structure diagram of the bone plate and the bone to be connected before screw locking of the application

[0021] In the figure, 1 - the upper fixed plate, 11 - the through hole, 12 - the fixed slot, 13 - the notch, 2 - the lower binding plate, 21 - the deformation part, 22 - the hook part, 23 - the threaded hole, 24 - the arc-shaped connecting part, 3 - the locking screw, 31 - the countersunk part, 4 - the bone. DETAILED DESCRIPTION

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The embodiments of the present application will be described below in conjunction with the accompanying drawings. Figures 1-6 The technical solutions of the present application will be further described.

[0025] Example 1

[0026] A new type of self-binding and fixing rib fracture plate, comprising: an upper fixed plate 1, a lower binding plate 2 and a locking screw 3, the long side of the upper fixed plate 1 is provided with at least two groups of through holes 11 symmetrically, the long side of the upper fixed plate 1 is provided with at least two groups of fixed slots 12 symmetrically on both sides, a notch 13 is arranged on the fixed slot 12, the lower binding plate 2 is arranged in the fixed slot 12, the lower binding plate 2 comprises a deformation part 21 and a hook part 22, the deformation part 21 has a deformation space in the middle, the deformation part 21 has a threaded hole 23 coaxial with the through hole 11 in the middle, the hook part 22 is fixed symmetrically on both sides of the deformation part 21, the locking screw 3 is screwed downward through the through hole 11 to connect the bone and the lower binding plate 2, forcing the deformation part 21 to deform and driving the hook part 22 to rotate downward to clamp the bone.

[0027] The upper fixed plate 1 is made of stainless steel material, the elastic modulus is about 200GPa, the lower binding plate 2 is made of pure titanium material, the elastic modulus is about 108GPa, both materials meet the requirement of biocompatibility, and can reflect their respective advantages in the matching process. Different material combinations are selected, the stainless steel fixed plate has strong anti-deformation ability, the pure titanium binding plate has certain plasticity, which ensures that the fixed plate maintains the fixing ability during locking, and the binding plate is easy to deform to bind the chest rib.

[0028] The installation process of the present application: the upper fixed plate 1 is placed on the bone 4 to be connected, the through hole 11 of the upper fixed plate 1 is pre-drilled on the bone 4 to be connected, and the upper fixed plate 1 is taken back; the lower binding plate 2 is loaded along the notch 13 of the fixed slot 12 of the upper fixed plate 1, the threaded hole 23 of the lower binding plate 2 is aligned with the pre-drilled through hole on the bone to be connected, the locking screw 3 is screwed into the threaded hole 23 of the lower binding plate 2 through the through hole 11 of the upper fixed plate 1, the locking screw 3 is continued to be screwed, the locking screw 3 is screwed into the bone while the nail cap of the locking screw 3 presses the upper fixed plate 1, the upper fixed plate 1 is pressed against the lower binding plate 2, the lower binding plate 2 is gradually deformed under the pressure of the upper fixed plate 1 during the screwing process, the deformation part 21 in the middle of the lower binding plate 2 is flattened into a "1" type, the locking screw 3 is screwed to the end, the deformation of the lower binding plate makes the two side hook parts 22 embrace and clamp the bone, and auxiliary fixation is realized. The above steps are repeated again to connect the locking screw 3 on the other bone and fix the other group of lower binding plates 2.

[0029] The doctor only needs to lock the screw at the specified position, and the built-in lower binding plate is deformed due to the specific structural characteristics and the extrusion of the screw traction force and the upper fixed plate, which can realize the embrace of the lower binding plate around the rib and achieve the effect of auxiliary fixation. The two ends of the fixed and corrected broken bone can be fixed to achieve the effect of treating bone fracture. This structure creatively solves the problems of using large instruments to enter the body, increasing the operation suture and reducing the operation wound during the operation of the chest rib, and reduces the difficulty of operation of the doctor.

[0030] As a further preferred embodiment, the deformation part 21 is V-shaped in cross section, the hook part 22 is connected to the two ends of the deformation part 21 through the arc-shaped connecting part 24, the arc-shaped connecting part 24 is located in the fixed slot 12, the opening angle β of the hook part 22 is 110°-150°, and the opening distance L between the hook part 22 and the deformation part 21 is 3.5-7mm. The opening angle of 110°-150° and the opening distance of 3.5-7mm can meet the fixation of rib fracture of different people in different parts, and increase the scope of application and practicality.

[0031] As a further preferred embodiment, the through hole 11 is provided with four groups, the fixed slot 12 is provided with four groups on the long side surface of the upper fixed plate 1, the axis of each group of the fixed slot 12 and the axis of the corresponding through hole 11 are on the same plane, the notches 13 of the symmetrically arranged fixed slots 12 are oppositely arranged, and the notches 13 are all arranged outward of the long side of the upper fixed plate 1. Two groups of locking screws 3 are connected on a single bone, and two groups of lower binding plates 2 are auxiliary fixed, which further improves the overall connection firmness. The notches 13 are all arranged outward of the long side of the upper fixed plate 1, so that the lower binding plate 2 is inserted from outside to inside, which improves the convenience.

[0032] As a further preferred embodiment, the opening size of the notch 13 is arranged to decrease in the direction of pushing the lower binding plate 2 into the fixing groove 12. The notch 13 is designed like a tapered inclined opening, which not only facilitates the installation of the lower binding plate 2, but also ensures that the lower binding plate 2 will not slide out after being installed.

[0033] As a further preferred embodiment, the through hole 11 is a tapered countersunk through hole, and the top of the locking screw 3 is provided with a countersunk head 31. The countersunk head 31 at the end of the locking screw 3 is deep into the upper part of the tapered countersunk through hole, and a zero-cut locking structure is formed in combination, which greatly reduces the irritation to the surrounding tissue after implantation.

[0034] The preferred embodiments of the present application are described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations without creative labor based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the prior art within the concept of the present application should be within the protection scope defined by the claims.

Claims

1. A new type of self-binding bone plate for fixing sternal rib fractures, characterized in that: include: An upper fixing plate, a lower binding plate and a locking screw, the long side of the upper fixing plate is symmetrically provided with at least two groups of through holes, the two side surfaces of the long side of the upper fixing plate are symmetrically provided with at least two groups of fixing grooves, the fixing groove is provided with a notch, the lower binding plate is arranged in the fixing groove, the lower binding plate includes a deformation part and a hook part, the middle part of the deformation part has a deformation space, the middle part of the deformation part is provided with a threaded hole coaxial with the through hole, the hook part is symmetrically fixed on both sides of the deformation part, the locking screw passes downward through the through hole to thread the bone and the lower binding plate, forcing the deformation part to deform and drive the hook part to rotate downward to clamp the bone, the cross-section of the deformation part is V-shaped, the hook part is connected to the two ends of the deformation part through an arc-shaped connecting part, and the arc-shaped connecting part is located in the fixing groove.

2. A novel self-binding bone plate for fixing sternal rib fractures according to claim 1, characterized in that: There are four groups of through holes, and four groups of fixing grooves are arranged on the long side surfaces of the upper fixing plate. The axis of each group of fixing grooves and the axis of the corresponding through holes are in the same plane.

3. The novel self-binding bone plate for fixing sternal rib fractures according to claim 1, characterized in that: The size of the notch opening is set to decrease as the lower binding plate is pushed into the interior of the fixing groove.

4. The novel self-binding bone plate for fixing sternal rib fractures according to claim 1, characterized in that: The opening arc β of the hook portion is 110°~150°, and the opening distance L between the hook portion and the deformation portion is 3.5~7mm.

5. A novel self-binding bone plate for fixing sternal rib fractures according to claim 2, characterized in that The notch openings of the symmetrically arranged fixing grooves are arranged in opposite directions, and the notch openings are all arranged toward the outside of the long side of the upper fixing plate.

6. The novel self-binding bone plate for fixing sternal rib fractures according to claim 1, characterized in that: The through hole is a conical countersunk through hole, and a countersunk head is provided on the top of the locking screw.

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