CN204581476U - A kind of anatomical form chest rib latch closure shape bone-knitting device - Google Patents

Abstract

The utility model discloses a kind of anatomical form chest rib latch closure shape bone-knitting device, comprise blade plate main body and at least one and-loop fastener, described blade plate main body is long strip-board shape, the bottom surface of described blade plate main body is the space arc-shaped curved surface matched with human body rib lateral surface anatomic form, described and-loop fastener is split ring component, this anatomical form chest rib latch closure shape bone-knitting device designs by adopting human body rib anatomical data, namely the floor design of blade plate main body is the space arc-shaped curved surface matched with human body rib lateral surface anatomic form, blade plate body floor and human body rib side are agreed with completely, meet human body rib anatomical physiology characteristic, good fixing effect, at utmost reach the anatomical reduction of fracture site, reduce the complication such as patient's postoperative pain, meanwhile, blade plate main body and and-loop fastener adopt separation design not only can quick and easyly be fixed on rib by the laminating of blade plate main body, remove after being also convenient to Rehabilitation.

Description

A kind of anatomical sternum-rib buckle-shaped osteosynthesis device

technical field

    The utility model relates to the technical field of orthopedic medical instruments, in particular to a sternum rib bone-synthesizing device.

Background technique

Most mild rib fractures can be cured by conservative treatment, but for complex and severe rib fractures, such as flail chest caused by multiple rib fractures, severe respiratory and circulatory dysfunction caused by abnormal breathing can be life-threatening, often need to be dealt with actively. For sternocostal fractures, currently commonly used sternocostal fracture fixation devices include:

(1) Bone plate, mainly by punching holes on both sides of the fracture line of the rib, fixing the steel plate on the broken rib with screws, or binding the steel plate to the broken rib with steel wires. The bending degree is large, and the patient suffers from severe chest pain after operation, often requiring a second operation to remove it. In addition, this kind of steel plate often has screws loosening and falling off.

(2) The claw-shaped bone plate is mainly used to fix the ribs by grasping the fixed claws. The fixation method is simple, but the biomechanical strength is not high, which may cause unstable healing of the fracture, and there is a risk of infection, pain, and re-fracture; moreover, This type of claw-shaped bone plate is not designed according to the anatomy and physiology of the rib, and the matching and anastomosis with the rib is low, so that the fixation and shaping effect is poor, and it is easy to cause intercostal blood vessel and nerve damage.

(3) Intramedullary fixation devices are mainly embedded in the cortical bone inner layer around the medullary cavity through intramedullary nails to achieve good internal fixation. However, due to the rotational displacement of the rib stump and the displacement of the needle body itself, fracture malunion or nonunion is prone to occur. Intramedullary fixation instruments often need to be combined with other fixation devices to achieve a relatively ideal fixation effect, which is inconvenient to use.

In view of this, it is necessary to improve the defects of the above-mentioned prior art and provide a sternal rib fracture fixation device with good healing and fixation effect and easy to use.

Utility model content

The technical problem to be solved by the utility model is to provide an anatomical sternum-rib buckle-shaped bone-synthesizing device with good healing effect and convenient use.

The technical solution adopted to solve the above-mentioned technical problems: an anatomical sternal rib buckle-shaped osteosynthesis device, comprising a bone plate main body and at least one ring buckle, the bone set main body is in the shape of a long strip, and the bone set main body The bottom surface of the utility model is a space arc-shaped curved surface conforming to the anatomy of the outer ribs of the human body, and the ring fastener is a split ring component.

Further, the buckle includes a straight portion and an arc portion that extends outward from both ends of the straight portion and bends toward each other to form a C shape. In each buckle, one side of the arc The width of the C-shaped opening is smaller than the width of the C-shaped opening of the arc portion on the other side.

Further, the width of the C-shaped opening of the arc-shaped portion on one side is 3.5-8 mm, and the width of the C-shaped opening of the arc-shaped portion on the other side is 4.5-8.5 mm.

Further, the two ends of the main body of the bone plate are respectively reversely twisted by a predetermined angle.

Further, the twist angle of one end of the bone plate main body is 7-12°, and the twist angle of the other end of the bone plate main body is 22-28°.

Beneficial effects: the anatomical sternum rib buckle-shaped bone-synthesis device is designed by using the anatomical data of human ribs, that is, the bottom surface of the bone plate main body is designed as a space arc-shaped curved surface that matches the anatomical shape of the outer surface of human ribs, so that the bottom surface of the bone plate main body It fits perfectly with the side of the ribs of the human body, conforms to the anatomical and physiological characteristics of the ribs of the human body, has a good fixation effect, achieves the anatomical reduction of the broken end of the fracture to the greatest extent, and reduces postoperative pain and other complications; at the same time, the main body of the bone plate and the buckle adopt a separate design Not only can the main body of the bone plate be fit and fixed on the rib quickly and simply, but also it is convenient for the patient to remove it after recovery.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further;

Fig. 1 is the schematic diagram of the use state of the utility model embodiment;

Fig. 2 is the structural representation of the utility model embodiment;

Fig. 3 is a schematic structural view of the main body of the bone plate in the embodiment of the present invention;

Fig. 4 is a structural schematic diagram of a ring fastener in an embodiment of the present invention.

Detailed ways

Referring to Fig. 1 to Fig. 4, the utility model is an anatomical sternum rib buckle-shaped osteosynthesis device, comprising a bone plate main body 10 and at least one buckle 20, the bone set main body 10 is in the shape of a long strip, and the bone set main body 10 The bottom surface is a space arc-shaped curved surface that matches the anatomy of the outer ribs of the human body, and the ring fastener 20 is a split ring component.

In this embodiment, the main body of the bone plate 10 and the buckle 20 adopt a separate design, that is, the main body 10 of the bone plate and the buckle 20 are two components that are mutually independent and cooperate with each other, and the number of the buckle 20 is selected according to actual surgical needs When in use, the main body of the bone plate 10 is first fitted to the rib fracture, and then the main body of the bone plate 10 is fastened and fixed to the rib through several ring fasteners 20. The space arc-shaped curved surface that matches the shape, when the main body of the bone plate 10 fits and fixes on the rib, its bottom surface completely fits with the side of the rib of the human body, which conforms to the anatomical and physiological characteristics of the rib of the human body, and can achieve a good fixation effect and achieve fracture fracture to the greatest extent. The anatomical reduction of the end can reduce the postoperative pain and other complications of the patient.

The bone plate main body 10 and the ring fastener 20 adopt a separate design, which not only can fit and fix the bone plate main body 10 on the ribs quickly and easily, but also facilitates the removal of the patient after recovery.

This anatomical sternum-rib buckle-shaped osteosynthesis device abandons the traditional bone plate and only considers conventional anatomical parameters such as length and width. According to the anatomical characteristics of each rib, it not only considers conventional anatomical parameters such as length and width, but also fully considers the bending angle of ribs. , twisting angle and other important parameters that cannot be ignored, make the bone setting device conform to the anatomical and physiological characteristics of ribs.

Among them, the bone setting device not only considers the anatomical characteristics of each rib, but also fully considers that the front rib, side rib, and rear rib of each rib also have their own shape characteristics. , the front section is designed as an arc according to the anatomical characteristics of the anterior rib, and its curvature is 62~67° to conform to the physiological arc of the rib. The middle section is designed to be arc-shaped according to the anatomical characteristics of the side ribs, and its curvature ranges from 72 to 79° to conform to the physiological curvature of the ribs. The posterior segment is designed to be arc-shaped according to the anatomical characteristics of the posterior rib, and its curvature ranges from 129° to 135° to conform to the physiological arc of this segment of ribs.

Preferably, the buckle 20 includes a straight portion 21 and an arc portion 22 extending outward from both ends of the straight portion 21 and bent in a C shape. In each buckle 20, one side of the buckle is curved The width of the C-shaped opening of each part 22 is smaller than the width of the C-shaped opening of the arc-shaped part 22 on the other side. The length of the straight part 21 corresponds to the width of the bone plate main body 10. As shown in FIG. The fit of snap fit is low, and it is easy to cause damage to intercostal blood vessels and nerves. The arc-shaped parts 22 on both sides of the ring fastener 20 adopt different widths according to the different thicknesses of the edges on both sides of the ribs, so that the arc-shaped parts 22 can be fully locked. The ribs are tightly hugged, so that each bone plate can better fit the ribs, achieving a good effect of fixing the ribs. The width of the C-shaped opening of the arc portion 22 on one side is preferably 3.5-8 mm, and the width of the C-shaped opening of the arc portion 22 on the other side is preferably 4.5-8.5 mm.

Wherein, the two ends of the bone plate main body 10 are respectively reversely twisted at predetermined angles so that the front and rear ends of the bone plate can better fit the ribs. According to the anatomical characteristics of the ribs, each rib has a certain degree of For twisting, one end of the bone plate body 10 is twisted at a certain angle relative to the center line of the bone plate body, preferably 7-12°, and the other end of the bone plate body 10 is reversely twisted at a certain angle relative to the center line of the bone plate body, preferably 22-28°.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments. Various changes are made.

Claims (5)

1. An anatomical sternum rib buckle-shaped bone setter, characterized in that: it comprises a bone plate main body and at least one ring buckle, the bone set main body is in the shape of a strip, and the bottom surface of the bone set main body is in line with the human body The space arc-shaped curved surface conforming to the anatomical shape of the rib lateral surface, and the ring fastener is a split ring component. 2. The anatomical sternum-rib buckle-shaped osteosynthesis device according to claim 1, characterized in that: the buckle comprises a section of straight part and extends outward from both sides of the straight part and bends towards each other in a C-shape In each of the loop fasteners, the width of the C-shaped opening of the arc portion on one side is smaller than the width of the C-shaped opening of the arc portion on the other side. 3. The anatomical sternum-rib buckle-shaped osteosynthesis device according to claim 2, wherein the width of the C-shaped opening of the arc portion on one side is 3.5 to 8 mm, and the width of the arc portion on the other side is The width of the C-shaped opening is 4.5~8.5mm. 4 . The anatomical sternum rib buckle-shaped osteosynthesis device according to claim 1 , characterized in that: the two ends of the bone plate main body are respectively reversely twisted by a predetermined angle. 5. The anatomical sternum rib buckle-shaped osteosynthesis device according to claim 4, characterized in that: the torsion angle of one end of the bone plate main body is 7-12°, and the torsion angle of the other end of the bone plate main body is 22°. ~28°.