CN112370143A

Movatterモバイル変換

Info

Publication number: CN112370143A
Application number: CN202011334294.3A
Authority: CN
Inventors: 陈博; 石海飞; 蒋帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-02-19

Abstract

The invention discloses a medical instrument tibia bone fracture plate for orthopedic surgery, which comprises a bone fracture plate main body, wherein the two ends of the front surface of the bone fracture plate main body are fixedly penetrated with a front surface end part main fixing hole, the two sides of the front surface of the bone fracture plate main body, which are positioned at the front surface end part main fixing holes, are penetrated with front surface end part auxiliary fixing holes, the middle part of the front surface of the bone fracture plate main body is symmetrically penetrated with a front surface middle part main fixing hole, the two sides of the front surface middle part of the bone fracture plate main body, which are positioned at the front surface middle part main fixing hole, are symmetrically penetrated with front surface middle part auxiliary fixing holes, the two ends of the side surface of the bone fracture, this medical instrument shin bone coaptation board for orthopedic surgery, simple structure is reasonable, and the modern design has higher shin bone fixing firmness in the aspect of setting a broken bone to the shin bone.

Description

Medical instrument tibia bone fracture plate for orthopedic surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical instrument tibia bone fracture plate for orthopedic surgery.

Background

The tibia is one of the two bones of the lower leg, is positioned at the inner side of the lower leg, plays an important role in supporting the body and is the main weight bearing bone in the lower leg. There may be a body and two ends, the upper end of which is commonly referred to as the proximal end and the lower end of which is commonly referred to as the distal end, wherein a distal fracture belongs to multiple fractures and a fracture of the diaphysis portion between the two ends belongs to a fracture of the tibialis body, which is relatively rare but nevertheless may occur.

Tibial fractures are a multiple fracture, accounting for 1/4, the incidence of total body fractures. The internal fixation material used clinically at present is mainly a titanium alloy material, and the material has the advantages of excellent corrosion resistance and mechanical property, but has poor biocompatibility, high price and larger difference between density and elasticity and natural bone, and is easy to cause stress shielding phenomenon, influence the growth of bone tissues and prolong healing time. And the fracture of the bone fracture plate is easily caused by external force during the treatment of the patient, thereby losing efficacy.

Among the prior art, generally only the screw hole of fixed diameter and angle on the coaptation board for the shin bone, to the fracture place of difference, adopt the screw of the same mode to fix, often can influence the fixed fastness of coaptation board, fixed not good can lead to iatrogenic nature fracture to appear, is unfavorable for the healing of patient's fracture. In order to provide an adaptive bone fracture plate which is suitable for various fractures and can enable the fractures to heal better. Therefore, the tibia bone fracture plate for the orthopedic surgery is improved, and a medical instrument for the orthopedic surgery is provided.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme:

As a preferable technical scheme of the invention, reinforcing ribs are fixedly arranged between the front fixing holes and the side fixing holes in the bone plate main body, and the reinforcing ribs are symmetrically arranged on two sides of the top and two sides of the bottom of the bone plate main body.

As a preferable technical solution of the present invention, the front end main fixing hole and the front end auxiliary fixing hole are obliquely disposed from top to bottom edges, the front end main fixing hole has an inner diameter of 4.5mm, and the front end auxiliary fixing hole has an inner diameter of 3.5 mm.

As a preferable technical scheme of the invention, the top ends of the front middle main fixing hole and the front middle auxiliary fixing hole are obliquely arranged towards the center of the bottom, the inner diameter of the front middle main fixing hole is 4.5mm, and the inner diameter of the front middle auxiliary fixing hole is 3.5 mm.

In a preferred embodiment of the present invention, the side end main fixing hole, the side end inner auxiliary fixing hole, and the side end outer auxiliary fixing hole are formed such that the tips thereof are inclined toward the center of the bottom, the inner diameter of the side end main fixing hole is 4.5mm, and the inner diameters of the side end inner auxiliary fixing hole and the side end outer auxiliary fixing hole are 3.5 mm.

As a preferable technical solution of the present invention, the top ends of the side surface middle main fixing hole, the side surface middle inner side auxiliary fixing hole, and the side surface middle outer side auxiliary fixing hole are inclined toward the center of the bottom, the inner diameter of the side surface middle main fixing hole is 4.5mm, and the inner diameters of the side surface middle inner side auxiliary fixing hole and the side surface middle outer side auxiliary fixing hole are 3.5 mm.

As a preferred technical scheme of the invention, the distances between the planes of the front middle main fixing hole and the front middle auxiliary fixing hole and the planes of the side middle main fixing hole, the side middle inner auxiliary fixing hole and the side middle outer auxiliary fixing hole are fixedly set to be 6 mm.

As a preferable technical scheme of the invention, the reinforcing ribs are made of titanium alloy materials, the thickness of the bone plate main body is 4mm, and the bone plate main body is made of WE43 medical magnesium alloy materials.

According to a preferable technical scheme, a micropore array processed by a laser femtosecond processing technology is fixedly arranged on the surface of the bone fracture plate main body, an antibacterial drug is filled in the micropore array, and the antibacterial drug is iodine.

The invention has the beneficial effects that: the medical instrument tibia bone fracture plate for the orthopedic surgery mainly adopts medical magnesium alloy materials, and has the advantages that the medical magnesium alloy materials are adopted; firstly, the material is degradable in vivo, after the material is implanted into a human body and a fracture heals in a certain period, the material completes a fixing task, can be degraded in vivo and gradually absorbed by the human body, so that a secondary taking-out operation can be omitted, and the pain and economic burden of a patient are relieved; secondly, the mechanical property is excellent, the elastic modulus of the magnesium alloy is close to that of human bones, the stress shielding effect can be effectively reduced, and meanwhile, the mechanical properties, such as tensile strength, and the like of the magnesium alloy are far higher than those of the degradable high polymer material in current clinical application, so that the clinical requirement can be better met; thirdly, the biological safety is good, and magnesium is a necessary nutrient element for human bodies and is important for physiological effects of metabolism and the like of the human bodies. In addition, the magnesium element can promote the growth of bone cells and promote the healing of fracture, and the excessive magnesium can be effectively discharged out of the body through the kidney without causing damage to the human body; the bone screws penetrate through the end fixing holes and the middle fixing holes to swing in a certain angle in the length direction and the vertical direction by arranging different end fixing holes and middle fixing holes, so that the fixing angles of the rest bone screws can be adjusted according to the fixing angle of each bone screw of the bone fracture plate in the operation process, the fixing angles of a plurality of bone screws are in a cross fit fixing mode, the bone fracture plate can be adjusted at any time when being fixed on the bone, the condition that the direction of a preset screw locking element limits the adjustment of the fixing direction of the screws in the fixing process is avoided, and the effect that the stability and the fixity of the bone fracture plate on the bone are good is achieved; the micropore array is processed on the surface of the bone fracture plate by utilizing a laser femtosecond technology, other processes are utilized, iodine vapor is placed into micropores, the area of a drug release surface is relatively small, the release speed of the drug is easy to control, the iodine has small irritation to skin and mucosa, and has a strong killing effect on bacteria, spores, viruses and the like, the iodine can be gradually released in vivo to play a role in continuous sterilization, and the iodine is an important component part of thyroid hormone, a certain amount of iodine is required for development and metabolism of human body organs, in addition, the anaphylactic reaction of the iodine is rare, and the drug resistance is avoided. Not only has good biocompatibility, but also can continuously resist bacteria.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention;

FIG. 2 is a schematic cross-sectional view of a medial longitudinal axis pair of fixation holes of a tibial bone plate for medical instruments in orthopedic surgery according to the present invention;

FIG. 3 is a schematic cross-sectional view of a main fixing hole of a longitudinal central axis of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention;

FIG. 4 is a cross-sectional view of a transverse front end fixing hole of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention;

FIG. 5 is a cross-sectional view of a main transverse side fixing hole of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention;

FIG. 6 is a cross-sectional view of a lateral side auxiliary fixing hole of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention;

FIG. 7 is a schematic view showing the arrangement of transverse cross-sectional reinforcing ribs of a tibial bone plate of a medical instrument for orthopedic surgery according to the present invention.

In the figure: 1. a bone plate main body; 2. a main fixing hole at the front end; 3. a front end auxiliary fixing hole; 4. a main fixing hole in the middle of the front surface; 5. a front middle auxiliary fixing hole; 6. main fixing holes at the end parts of the side surfaces; 7. auxiliary fixing holes at the inner sides of the end parts of the side surfaces; 8. auxiliary fixing holes at the outer sides of the end parts of the side surfaces; 9. a main fixing hole in the middle of the side surface; 10. a side surface middle inner side auxiliary fixing hole; 11. the auxiliary fixing hole is arranged at the outer side of the middle part of the side surface; 12. and (5) reinforcing ribs.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in figures 1-7, the invention relates to a medical instrument tibia fracture plate for orthopedic surgery, which comprises a fracture platemain body 1, wherein both ends of the front surface of the fracture platemain body 1 are fixedly penetrated with front end partmain fixing holes 2, both sides of the front surface of the fracture platemain body 1, which are positioned at the front end partmain fixing holes 2, are penetrated with front end partauxiliary fixing holes 3, the middle part of the front surface of the fracture platemain body 1 is symmetrically penetrated with a front middle partmain fixing hole 4, both sides of the front surface of the fracture platemain body 1, which are positioned at the front middle partmain fixing holes 4, are symmetrically penetrated with front middle partauxiliary fixing holes 5, both ends of the side surface of the fracture platemain body 1 are penetrated with side surface end partmain fixing holes 6, both ends of the side surface of the fracture platemain body 1, which are positioned at the outer sides of the side surface end partmain fixing holes 6, are penetrated with side surface end, the side middle part symmetry of coaptation boardmain part 1 runs through and is equipped with side middle part mainfixed orifices 9, and the inboard symmetry that the side middle part of coaptation boardmain part 1 is located side middle part mainfixed orifices 9 runs through and is equipped with side middle part inboard vicefixed orifices 10, and the outside symmetry that the side middle part of coaptation boardmain part 1 is located side middle part mainfixed orifices 9 runs through and is equipped with side middle part outside vicefixed orifices 11.

Wherein, the internal portion of the bone fracture platemain body 1 is located and is fixed between the front fixing hole and the side fixing hole and is equipped with the strengtheningrib 12, and the strengtheningrib 12 symmetry sets up in the top both sides and the bottom both sides of bone fracture platemain body 1.

Wherein, the top of the main fixed orifices offront end 2 and the auxiliary fixed orifices offront end 3 is inclined towards the bottom edge, the internal diameter of the main fixed orifices offront end 2 is 4.5mm, and the internal diameter of the auxiliary fixed orifices offront end 3 is 3.5 mm.

Wherein, the top of the mainfixed orifices 4 in the middle part of the front and the auxiliaryfixed orifices 5 in the middle part of the front are inclined towards the center of the bottom, the inner diameter of the mainfixed orifices 4 in the middle part of the front is 4.5mm, and the inner diameter of the auxiliaryfixed orifices 5 in the middle part of the front is 3.5 mm.

The top ends of the side endmain fixing hole 6, the side end inner side auxiliary fixing hole 7 and the side end outer sideauxiliary fixing hole 8 are obliquely arranged towards the center of the bottom, the inner diameter of the side endmain fixing hole 6 is 4.5mm, and the inner diameters of the side end inner side auxiliary fixing hole 7 and the side end outer sideauxiliary fixing hole 8 are 3.5 mm.

Wherein, the top of the side middle mainfixed orifices 9, the side middle inside auxiliaryfixed orifices 10 and the side middle outside auxiliaryfixed orifices 11 is inclined towards the bottom center, the inside diameter of the side middle mainfixed orifices 9 is 4.5mm, and the inside diameters of the side middle inside auxiliaryfixed orifices 10 and the side middle outside auxiliaryfixed orifices 11 are 3.5 mm.

The distances between the planes of the front middlemain fixing hole 4 and the front middleauxiliary fixing hole 5 and the planes of the side middlemain fixing hole 9, the side middle inner sideauxiliary fixing hole 10 and the side middle outer sideauxiliary fixing hole 11 are fixedly set to be 6 mm.

The reinforcingribs 12 are made of titanium alloy materials, the thickness of the bone platemain body 1 is 4mm, and the bone platemain body 1 is made of WE43 medical magnesium alloy materials.

The surface of the bone fracture platemain body 1 is fixedly provided with a micropore array processed by a laser femtosecond processing technology, and antibacterial drugs are filled in the micropore array and are iodine.

When the medical instrument shinbone fracture plate for orthopedic surgery is in operation, the medical magnesium alloy material is mainly adopted, the medical magnesium alloy material has the advantages that firstly, the material is degradable in vivo, after the material is implanted into a human body, after a certain period of time, a fixing task is completed after fracture healing, the material can be degraded in vivo and gradually absorbed by the human body, secondary taking-out operation can be omitted, and pain and economic burden of a patient are relieved; secondly, the mechanical property is excellent, the elastic modulus of the magnesium alloy is close to that of human bones, the stress shielding effect can be effectively reduced, and meanwhile, the mechanical properties, such as tensile strength, and the like of the magnesium alloy are far higher than those of the degradable high polymer material in current clinical application, so that the clinical requirement can be better met; thirdly, the biological safety is good, and magnesium is a necessary nutrient element for human bodies and is important for physiological effects of metabolism and the like of the human bodies. In addition, the magnesium element can promote the growth of bone cells and promote the healing of fracture, and the excessive magnesium can be effectively discharged out of the body through the kidney without causing damage to the human body; the bone screws penetrate through the end fixing holes and the middle fixing holes to swing in a certain angle in the length direction and the vertical direction by arranging different end fixing holes and middle fixing holes, so that the fixing angles of the rest bone screws can be adjusted according to the fixing angle of each bone screw of the bone fracture plate in the operation process, the fixing angles of a plurality of bone screws are in a cross fit fixing mode, the bone fracture plate can be adjusted at any time when being fixed on the bone, the condition that the direction of a preset screw locking element limits the adjustment of the fixing direction of the screws in the fixing process is avoided, and the effect that the stability and the fixity of the bone fracture plate on the bone are good is achieved; the micropore array is processed on the surface of the bone fracture plate by utilizing a laser femtosecond technology, other processes are utilized, iodine vapor is placed into micropores, the area of a drug release surface is relatively small, the release speed of the drug is easy to control, the iodine has small irritation to skin and mucosa, and has a strong killing effect on bacteria, spores, viruses and the like, the iodine can be gradually released in vivo to play a role in continuous sterilization, and the iodine is an important component part of thyroid hormone, a certain amount of iodine is required for development and metabolism of human body organs, in addition, the anaphylactic reaction of the iodine is rare, and the drug resistance is avoided. Not only has good biocompatibility, but also can continuously resist bacteria.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical instrument tibia bone fracture plate for orthopedic surgery comprises a bone fracture plate main body (1) and is characterized in that front end part main fixing holes (2) are fixedly arranged at two front ends of the bone fracture plate main body (1) in a penetrating mode, front end part auxiliary fixing holes (3) are arranged at two sides, located at the front end part main fixing holes (2), of the two front ends of the bone fracture plate main body (1) in a penetrating mode, front middle part main fixing holes (4) are symmetrically arranged in a penetrating mode in the middle of the front of the bone fracture plate main body (1), front middle part auxiliary fixing holes (5) are symmetrically arranged in a penetrating mode in two sides, located at the front middle part main fixing holes (4), of the middle of the front of the bone fracture plate main body (1), side end part main fixing holes (6) of a side face are arranged in a penetrating mode in two side end parts of the bone fracture plate main body (1), side end part inner side auxiliary fixing holes, the side of coaptation board main part (1) both ends are located the inboard of side tip main fixed orifices (6) and run through and are equipped with the vice fixed orifices in side tip outside (8), the side middle part symmetry of coaptation board main part (1) runs through and is equipped with side middle part main fixed orifices (9), the inboard symmetry that the side middle part of coaptation board main part (1) is located side middle part main fixed orifices (9) runs through and is equipped with the vice fixed orifices in side middle part inboard (10), the outside symmetry that the side middle part of coaptation board main part (1) is located side middle part main fixed orifices (9) runs through and is equipped with the vice fixed orifices in side middle part outside.

2. The tibia bone plate as set forth in claim 1, wherein reinforcing ribs (12) are fixedly arranged inside the bone plate body (1) between the front fixing holes and the side fixing holes, and the reinforcing ribs (12) are symmetrically arranged on both sides of the top and both sides of the bottom of the bone plate body (1).

3. The tibial bone plate for medical instruments used in orthopedic surgery according to claim 1, wherein the top ends of the front main fixation hole (2) and the front auxiliary fixation hole (3) are inclined toward the bottom end edge, the inner diameter of the front main fixation hole (2) is 4.5mm, and the inner diameter of the front auxiliary fixation hole (3) is 3.5 mm.

4. The tibia bone plate for the medical instrument used in the orthopedic surgery according to claim 1, wherein the top ends of the front middle main fixing hole (4) and the front middle auxiliary fixing hole (5) are inclined toward the center of the bottom, the inner diameter of the front middle main fixing hole (4) is 4.5mm, and the inner diameter of the front middle auxiliary fixing hole (5) is 3.5 mm.

5. The tibia bone plate as described in claim 1, wherein the top ends of the side end main fixing hole (6), the side end inner auxiliary fixing hole (7), and the side end outer auxiliary fixing hole (8) are inclined toward the center of the bottom, the inner diameter of the side end main fixing hole (6) is 4.5mm, and the inner diameters of the side end inner auxiliary fixing hole (7) and the side end outer auxiliary fixing hole (8) are 3.5 mm.

6. The tibia bone plate for the medical instrument used in the orthopedic surgery according to claim 1, wherein top ends of the main lateral middle fixing hole (9), the auxiliary lateral middle inner fixing hole (10), and the auxiliary lateral middle outer fixing hole (11) are inclined toward a bottom center, an inner diameter of the main lateral middle fixing hole (9) is 4.5mm, and inner diameters of the auxiliary lateral middle inner fixing hole (10) and the auxiliary lateral middle outer fixing hole (11) are 3.5 mm.

7. The tibia bone plate of the medical instrument for orthopedic surgery according to claim 1, wherein the distances between the plane where the front middle main fixing hole (4) and the front middle auxiliary fixing hole (5) are located and the plane where the side middle main fixing hole (9), the side middle inner auxiliary fixing hole (10) and the side middle outer auxiliary fixing hole (11) are located are fixedly set to be 6 mm.

8. The tibia bone plate as set forth in claim 1, wherein the reinforcing ribs (12) are made of a titanium alloy material, the thickness of the bone plate main body (1) is 4mm, and the bone plate main body (1) is made of a WE43 medical magnesium alloy material.

9. The tibia bone fracture plate as one of the medical devices for the orthopedic surgery according to claim 1, wherein a micropore array processed by a laser femtosecond processing technology is fixed to the surface of the bone fracture plate main body (1), and an antibacterial drug is filled in the micropore array and is iodine.