CN219230087U

CN219230087U - Fracture fixing device

Info

Publication number: CN219230087U
Application number: CN202223521412.9U
Authority: CN
Inventors: 王迪; 张宇
Original assignee: CHANGCHUN SINOBIOMATERIALS CO LTD
Current assignee: CHANGCHUN SINOBIOMATERIALS CO LTD
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-23
Anticipated expiration: 2032-12-28

Abstract

The utility model belongs to the technical field of fracture internal fixation, and particularly relates to a fracture fixing device; the fixing plate comprises a fixing plate and strapping tapes, wherein a plurality of pore canals are formed in the fixing plate, a limiting structure is arranged at the end part of each strapping tape, holes are formed in the other end of each strapping tape, each strapping tape sequentially penetrates through each pore canal in the fixing plate, and the strapping tapes are clamped at the pore canal opening at the leftmost side of the fixing plate through the limiting structure at the end part of each strapping tape, so that the strapping tapes are wound on the fixing plate; the device is simple in operation in a fixing mode, the operation side injury is small, meanwhile, the pain and the economic burden of a patient are greatly reduced, and the operation can be simplified to achieve a more ideal fixing effect.

Description

Fracture fixing device

Technical Field

The utility model belongs to the technical field of fracture internal fixation, and particularly relates to a fracture fixing device.

Background

The rib fracture can be caused by car accidents, high-altitude falling, weight extrusion or blunt force injury, and the rib fracture at a plurality of parts can cause the local chest wall to lose rib support and soften, so as to form flail chest. Flail chest is extremely easy to be combined with lung contusion, and further causes acute respiratory distress syndrome or multiple organ failure, if not treated in time, the mortality rate is as high as 15-20%. Conservative non-surgical therapies are slow to work and patients may also suffer from a more painful psychological burden. In recent years, with the development of various biomedical implant materials, surgical treatment using an intra-rib fixator has become common in the industry.

The bone internal fixation materials commonly used in clinic at present comprise pure titanium claw bone fracture plates, nickel-titanium memory alloy embracing devices, chain nail plate systems and the like. Although the fracture materials have higher strength and good biocompatibility, the fracture fixation modes have complicated operation and higher operation difficulty in the clinical application process, are likely to damage nerves and blood vessels in the operation process, and also have the risk of metal poisoning. When the materials are fixed, holes are required to be drilled on normal bones, bone destruction can be carried out on the normal bones, and metal materials have certain interference on postoperative imaging examination so as to influence the judgment of fracture healing. In addition, the titanium alloy or nickel-titanium memory alloy rib internal fixing material cannot be absorbed by a human body, stress shielding can be generated when the rib internal fixing material is implanted for a long time, and bone of a fixing part is poor, so that the rib internal fixing material needs to be taken out through a secondary operation, but the rib internal fixing material is difficult to operate during the operation, a bone fracture plate needs to be pried out through a special instrument, damage to a patient is large, and the risk and cost burden of the secondary operation of the patient are increased.

Disclosure of Invention

In order to overcome the problems, the utility model provides a fracture fixing device which is used for internal fracture fixation, the fixing mode of the device is simple to operate, the operation side injury is small, the clamping pressure of intercostal nerves and blood vessels is effectively avoided, the operation complications are reduced, and healthy bones are not easily damaged in the operation process; the bone fracture fixator can be completely absorbed and metabolized after being implanted into a human body, so that secondary operation extraction is avoided, the problem that an internal fixator is required to be extracted by the secondary operation in the existing clinical treatment of rib fracture is solved, meanwhile, the pain and the economic burden of a patient are greatly reduced, and the operation can be simplified to achieve a more ideal fixing effect.

The fracture fixing device comprises a fixing plate 1 and at least one strapping tape 2 matched with the fixing plate, wherein a plurality of pore channels 11 are formed in the fixing plate 1, and at least one strapping tape 2 is arranged in the pore channels 11 in a penetrating mode and is wound on the fixing plate 1; the strapping 2 comprises a strapping body 23, a limiting structure 21 is arranged at one end part of the strapping body 23, a hole 22 is arranged at the other end part of the strapping body, and one end of the strapping body 23 provided with the hole 22 penetrates through the hole 11, so that the limiting structure 21 is clamped at the opening of the hole 11.

The fixing plate 1 and the strapping 2 are made of absorbable materials, and the absorbable materials are one or more of polylactic acid and copolymers thereof, polycaprolactone and copolymers thereof, polyglycolic acid and copolymers thereof, and polydioxanone and copolymers thereof.

The fixing plate 1 is in a strip shape, and four corners are all round corner structures.

The length of the duct 11 is the same as the width of the fixing plate 1, and the width of the duct 11 is the same as the width of the strapping body 23 or slightly larger than the width of the strapping body 23; the height of the duct 11 is the same as the thickness of the strap body 23 or slightly greater than the thickness of the strap body 23.

The width of the limiting structure 21 is larger than that of the pore canal 11; the strap body 23 has a width less than or equal to the width of the tunnel 11.

The length of the fixed plate 1 is 3-15 cm, the width is 0.1-5 cm, and the thickness is 0.5-15 mm.

The length of the limiting structure 21 is 1-10 mm.

The strapping body 23 is of solid construction.

The strapping body 23, when the strapping body 23 is hollow, the hole 22 on the strapping 2 can be inserted and fixed by a fixing rod 5.

The strapping body 23 is a hollow structure, and a fixing rod 5 for fixing is arranged in the hollow structure in a penetrating manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. the fixing device is made of absorbable materials, can be completely absorbed by a human body, avoids secondary taking out, and reduces damage to the human body.

2. The fixing device is simple and convenient in fixing mode, the tail end of the strapping tape can be connected with the suture, the whole strapping operation is simple and convenient, the clamping pressure of intercostal nerves and blood vessels is effectively avoided, and the operation complications are reduced.

3. The fixing device is fixed without drilling, and healthy bone is not damaged.

4. The fixing device can be molded at a certain temperature, so that the fixing device is completely attached to the rib, and the fracture healing is facilitated.

5. The fixing device is fixed by using the suture or by using the hollowed strapping tape, and is convenient and quick.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings to be used in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic front view of a fixing plate according to the present utility model.

Fig. 2 is a schematic top view of the fixing plate of the present utility model.

Fig. 3 is a schematic view of the strapping structure of the present utility model.

Fig. 4 is a front view of the usage state of embodiment 1 of the present utility model.

Fig. 5 is a schematic top view illustrating the use state of embodiment 1 of the present utility model.

Fig. 6 is a front view of the usage state of embodiment 2 of the present utility model.

Fig. 7 is a schematic top view illustrating a use state of embodiment 2 of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1-3, the fracture fixing device comprises a fixing plate 1 and at least one strapping tape 2 matched with the fixing plate, wherein a plurality of uniformly arranged pore channels 11 are formed in the fixing plate 1, and at least one strapping tape 2 is arranged in the pore channels 11 in a penetrating manner and is wound on the fixing plate 1; the strapping 2 includes strapping body 23, the left side tip of strapping body 23 is equipped with limit structure 21, and the right side tip is equipped with the hole 22 that is used for passing surgical suture 3, and surgical suture 3 can pass hole 22, under the traction of surgical suture 3, strapping body 23 is equipped with the one end of hole 22 is passed from left to right in proper order each pore 11 in same direction, makes limit structure 21 card is in the pore 11 mouth department in leftmost for strapping 2 twines on fixed plate 1, and surgical suture 3 makes strapping 2 pass fixed plate 1 easily and tie up together with the bone of fracture, and finally surgical suture 3 twines on the bone and tie a knot and fix.

The fixing plate 1 and the strapping 2 are made of absorbable materials, such as one or more of polylactic acid and copolymers thereof, polycaprolactone and copolymers thereof, polyglycolic acid and copolymers thereof, and polydioxanone and copolymers thereof. The fixing plate 1 is in any regular or irregular strip shape, four corners are of round corner structures, the length is 3-15 cm, the width is 0.1-5 cm, and the thickness is 0.5-15 mm. The four corners of the fixing plate 1 are of round corner structures, no sharp corner structures exist, and soft tissues cannot be damaged after the fixing plate is implanted into a human body.

The fixing plate 1 can be molded at a certain temperature, so that the fixing plate 1 is completely attached to the rib when being placed on the rib, and the rib fracture recovery is facilitated.

The fixing plate 1 is of an internal open pore structure, and the pore channels 11 are uniformly distributed in the fixing plate 1.

The duct 11 is any through structure perpendicular to the axial direction of the fixing plate 1. The length of the pore canal 11 is the same as the width of the fixed plate 1; the width of the duct 11 is the same as the width of the strap body 23 or slightly greater than the width of the strap body 23; the height of the tunnel 11 is the same as the thickness of the strap body 23 or slightly greater than the thickness of the strap body 23.

The presence of said channels 11 facilitates the shaping of the fixing plate 1.

The length of the limiting structure 21 is 1-10 mm, and the width of the limiting structure is larger than that of the pore canal 11; ensuring that the strapping body 23 can be secured to the aperture 11 of the mounting plate 1; the width of the strapping body 23 is smaller than or equal to the width of the duct 11, so that the strapping 2 can pass through the duct 11 of the fixing plate 1.

The strapping body 23 is of a solid structure or a hollow structure, wherein the hollow design can be better fixed by inserting a fixing rod 5.

The hole 22 in the strap 2 can be secured by insertion of a securing rod 5.

The product is fixed by using a suture or by using a hollowed strapping tape 2.

As shown in fig. 4-5, a method for fixing a fracture using a fracture fixation device, comprising:

step one, placing the fixation plate 1 on bone and penetrating the surgical suture 3 in the hole 22;

step two, using a strapping tape 2, enabling a strapping tape body 23 to pass through a first hole channel 11 on the left side of the fixed plate 1 from the rear end of the fixed plate 1 under the drive of a surgical suture 3, enabling a limiting structure 21 to be clamped on the fixed plate 1 at the rear end of the hole channel 11, and then winding the strapping tape body 23 on bones from bottom to top for one circle;

step three, the strapping body 23 continues to pass through the other duct 12 adjacent to the first duct 11 from the rear end of the fixing plate 1, and the strapping body 23 is tensioned at the bone bottom;

and step four, repeating the operation of the step three, so that the strapping tape body 23 sequentially passes through all the pore canals 11, and finally winding the surgical suture 3 on the bone and knotting to finish the fixation of the fixing plate 1 on the bone.

Example 2

The difference is that the fixing plate 1 is made of PLLA material, the strapping 2 is made of PCLA material, the fixing plate 1 is 3cm long, 1cm wide and 5mm thick, the fixing plate 1 is in a calabash string shape, the holes in the fixing plate 1 penetrate through the hole channels 11 of the fixing plate 1, the length is 1cm, 4 holes are formed in total, the hole channels 11 are rectangular, the non-uniform width part of the strapping 2 is 1mm long, namely the limiting structure 21, and the strapping 2 is of a solid design.

The difference is also that it can also be used by the following method, as shown in fig. 6-7:

step one, placing the fixing plate 1 on a bone, using two strapping tapes 2, and penetrating surgical sutures 3 into holes 22 on each strapping tape 2;

step two, using a first strapping tape 2, enabling a strapping tape body 23 to pass through a first hole channel 11 on the left side of the fixed plate 1 from the rear end of the fixed plate 1 under the drive of a surgical suture 3, enabling a limiting structure 21 to be clamped on the fixed plate 1 at the rear end of the hole channel 11, and then winding the strapping tape body 23 on bones from bottom to top for one circle;

step three, using a second strapping tape 2, enabling the strapping tape body 23 on the second strapping tape to pass through a second hole channel 11 on the left side of the fixed plate 1 from the rear end of the fixed plate 1 under the drive of a surgical suture 3, enabling an upper limit structure 21 of the strapping tape body to be clamped on the fixed plate 1 at the rear end of the second hole channel 11, and then winding the strapping tape body 23 on bones from bottom to top for one circle;

step four, the strapping body 23 of the first strap 2 continues to pass through the third duct 12 separated from the first duct 11 by one from the rear end of the fixing plate 1, and the strapping body 23 is tensioned at the bottom of the rib; the strapping body 23 of the second strapping 2 continues from the rear end of the fixing plate 1 through the fourth opening 12 spaced one from the second opening 11 and tightens the strapping body 23 at the rib bottom;

and fifthly, repeating the operation of the third step and the fourth step, enabling the two strapping tapes 2 to sequentially pass through the pore passages 11 at intervals, and finally winding the two surgical sutures 3 on bones and knotting to finish the fixation of the fixing plate 1 on the ribs.

Example 3

A fracture fixation device comprises a fixation plate 1 and a strapping 2.

The securing plate 1 and strap 2 are of an absorbable material, such as PLLA, PLGA, PCLA.

The length of the fixing plate 1 is 3-15 cm, the width is 0.1-5 cm, and the thickness is 0.5-15 mm.

The fixing plate 1 may have any regular or irregular elongated shape.

The fixing plate 1 is of a round corner structure, has no sharp corner structure, and cannot cause damage to soft tissues after being implanted into a human body.

The fixing plate 1 can be molded at a certain temperature, so that the fixing plate 1 can be completely attached to the rib, and the rib fracture recovery is facilitated.

The duct 11 is any through structure perpendicular to the axial direction of the fixing plate 1.

The length of the duct 11 is the same as the width of the fixing plate, and the duct width is the same as the width of the strapping 2 or slightly larger than the width of the strapping 2. The height of the tunnel is the same as the thickness of the strap 2 or slightly greater than the thickness of the strap 2.

The existence of the pore canal is beneficial to the shaping of the fixed plate 1, and when the fixed plate 1 is shaped, the pore canal 11 can deform and can not whiten the stress of the fixed plate 1.

The strap 2 includes a non-uniform width portion and a uniform width portion,

the non-uniform width part of the strapping tape 2 is about 1-10 mm long, and the width is required to be larger than the width of the pore canal 11 of the fixing plate 1, so that the strapping tape 2 can be fixed on the pore canal 11 of the fixing plate 1.

The width of the equal-width part of the strapping tape 2 is required to be smaller than or equal to the width of the hole channel 11 of the fixing plate 1, so that the strapping tape 2 can pass through the hole channel 11 of the fixing plate 1.

The end of the tail of the equal-width part of the strapping 2 is provided with a hole 22, a medical surgical suture 3 can pass through the hole 22, the strapping 2 can easily pass through the fixing plate 1 and be tied and fixed with the fractured bone under the traction of the surgical suture 3, and finally the suture can be wound on the bone and knotted and fixed.

The strapping 2 may be of solid construction or hollow construction, wherein the hollow design may be better secured by a fixation rod inserted.

The fixing means of the fixing device include, but are not limited to, the following means:

1. after a strapping tape 2 passes through one hole 11 of the fixing plate 1 and is wound on the rib for one circle, the strapping tape continues to pass through the adjacent other hole 11 of the fixing plate 1, the operation is repeated, and finally, the suture is knotted, so that the fixing is finished.

2. Two strapping tapes 2 are used, one strapping tape 2 passes through one hole 11 of the fixing plate 1 and is wound on the rib in a circle, the other strapping tape 2 passes through the other adjacent hole 11 of the fixing plate 1, is wound on the rib in a circle and is crossed with the previous strapping tape 2, the operation is repeated, and finally, the suture is knotted to complete fixation, so that the fixation effect is good, and the fractured rib can be prevented from sliding.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the scope of the present utility model is not limited to the specific details of the above embodiments, and within the scope of the technical concept of the present utility model, any person skilled in the art may apply equivalent substitutions or alterations to the technical solution according to the present utility model and the inventive concept thereof within the scope of the technical concept of the present utility model, and these simple modifications are all within the scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The fracture fixing device is characterized by comprising a fixing plate (1) and at least one strapping tape (2) matched with the fixing plate, wherein a plurality of pore channels (11) are formed in the fixing plate (1), and at least one strapping tape (2) is arranged in the pore channels (11) in a penetrating manner and is wound on the fixing plate (1); the strapping (2) comprises a strapping body (23), a limit structure (21) is arranged at one end part of the strapping body (23), a hole (22) is arranged at the other end part of the strapping body, one end of the strapping body (23) provided with the hole (22) penetrates through the pore canal (11), and the limit structure (21) is clamped at the opening of the pore canal (11).

2. A fracture fixation device according to claim 1, characterized in that the fixation plate (1) is elongated and rounded at four corners.

3. A fracture fixation device according to claim 2, characterized in that the length of the tunnel (11) is the same as the width of the fixation plate (1), the tunnel (11) being the same width as the strap body (23) or larger than the strap body (23); the height of the duct (11) is the same as the thickness of the strapping body (23) or greater than the thickness of the strapping body (23).

4. A fracture fixation device according to claim 3, characterized in that the width of the limiting structure (21) is larger than the width of the tunnel (11); the width of the strapping body (23) is smaller than or equal to the width of the tunnel (11).

5. The fracture fixation device according to claim 4, wherein the fixation plate (1) has a length of 3-15 cm, a width of 0.1-5 cm and a thickness of 0.5-15 mm.

6. The fracture fixation device according to claim 5, characterized in that the length of the limiting structure (21) is 1-10 mm.

7. A fracture fixation device according to claim 1, characterized in that the strapping body (23) is of solid construction.

8. The fracture fixation device according to claim 1, characterized in that the strapping body (23) is of a hollowed-out structure, and a fixation rod (5) for fixation is arranged in the hollowed-out structure in a penetrating manner.