CN113143430A - Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar - Google Patents
Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar Download PDFInfo
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- CN113143430A CN113143430A CN202010074458.7A CN202010074458A CN113143430A CN 113143430 A CN113143430 A CN 113143430A CN 202010074458 A CN202010074458 A CN 202010074458A CN 113143430 A CN113143430 A CN 113143430A
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- 210000002758 humerus Anatomy 0.000 title claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 28
- 210000002310 elbow joint Anatomy 0.000 title claims abstract description 23
- 230000009467 reduction Effects 0.000 title claims abstract description 17
- 206010017076 Fracture Diseases 0.000 claims description 52
- 208000010392 Bone Fractures Diseases 0.000 claims description 49
- 208000031294 Upper limb fractures Diseases 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 22
- 206010020462 Humerus fracture Diseases 0.000 description 13
- 208000007981 Humeral Fractures Diseases 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 6
- 230000035876 healing Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 208000034693 Laceration Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- MWKFJNKVRCHNIX-UHFFFAOYSA-N CCCCBN=O Chemical compound CCCCBN=O MWKFJNKVRCHNIX-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000003464 cuspid Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
- A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention provides a humerus proximal elbow joint fracture reduction fixing method of an interlocking intramedullary double-long and thin steel bar, which mainly comprises a hollow screw, wherein one end of the hollow screw is provided with an integrally formed fixing sleeve device, the hollow screw is provided with a groove, the groove is an inwards concave spherical surface and is used for matching a circular ball with a hollow inner part and a groove at one side and a sleeved section consisting of bolts, the other end of the hollow screw is provided with a non-integrally formed fixing sleeve device, the top end of the hollow screw is provided with special threads and is used for matching a circular ball with a hollow inner part and a groove at one side of the other hollow inner end, the sleeved section consisting of bolts is used for allowing the intramedullary double-long and thin steel bar to pass through the hollow inner part of the circular ball at two ends by utilizing the hollow inner part of the circular ball at two ends, then the bolts are respectively screwed into the groove at one side of the circular ball at two ends to compress the two ends of the intramedullary double-long and thin steel bar, and the other top end of the hollow screw is provided with the special threads and is fastened with a bolt lock, the fixing directions of the intramedullary double-slender steel bars at the two ends are the same, and the hollow screw rod can be designed with different lengths and different diameters according to the requirements of users.
Description
Technical Field
The invention relates to a humerus proximal elbow joint fracture reduction fixing method of an interlocking intramedullary double-long steel bar, which is particularly designed for the subsequent joint treatment after fracture and fracture at the far end and near left joint of a human humerus, and comprises a hollow screw rod, wherein one end of the hollow screw rod is provided with an integrally-formed fixing sleeve device which is provided with a groove (the appearance is hexagonal), the groove is an inwards concave spherical surface and is used for matching a circular ball with a hollow inner part and a groove at one side and a sleeved section consisting of bolts, the other end of the hollow screw rod is provided with a non-integrally-formed fixing sleeve device, the top end of the hollow screw rod is provided with special threads and is used for matching a circular ball with a hollow inner part and a groove at one side and a sleeved section consisting of bolts, the intramedullary double-long steel bar passes through the hollow inner parts of the circular balls at two ends, the bolts are respectively screwed into the grooves at one side of the circular balls at the two ends to compress the circular balls at the two ends, and the intramedullary double-long steel bar with the circular balls at the two ends is nearly locked and fixed, when the other top end of the hollow screw is provided with special threads and is fastened and fixed with the bolt lock, the fixing directions of the intramedullary double slender steel rods at the two ends are the same, and the hollow screw can be designed with different lengths and different diameters according to the requirements of users.
Background
When the human skeleton is subjected to improper external force or impact, the phenomenon of fracture and laceration is inevitable or occurs, although the human skeleton has the function of self-healing, in order to maintain the skeleton to heal in a normal state, generally, when the fracture and laceration occurs, the fracture and laceration part of the human skeleton must be reset by external force, even the state of the fracture and laceration part of the human skeleton must be maintained by assistance, so that the healing effect can be ensured, and the phenomenon that the bone heals in a bad state to influence the action of limbs in the future is avoided.
In addition to the common bone nail or steel plate fixation methods, the fracture treatment of the proximal elbow joint of the humerus is performed in a special form, so that different methods are required for the joint fixation of the fracture.
For example, the previous cases such as M465887, M402092, M438892 and M442818 are all common bone nail structures disclosed, but obviously, the effect of the bone nails applied to the fixation of fracture and fracture of humerus is not ideal, and in the treatment of fracture and fracture of humerus, after the fractured bone pieces of humerus caused by fracture and fracture are joined and returned, the metal pieces are applied to the surface of humerus, and then the metal pieces and the humerus are drilled and locked by the bone nails, so that the shape of the humerus can be maintained by the metal pieces and the bone nails, and the humerus can be healed and returned to the original state.
However, in fact, such a fixing method can only be applied to the case where the fracture of the humerus is not serious, and if the humerus is broken into a plurality of pieces, the fixing method may not be fixed by the metal plate and the bone nail, and thus it is necessary to try to solve the problem.
Disclosure of Invention
In view of the fact that no ideal fixing method exists for fracture and joint fixation of the proximal elbow joint of the humerus, the inventor specially develops and develops the interlocking intramedullary double-slender steel rod fracture reduction and fixation method of the proximal elbow joint of the humerus based on years of experience and technology of related industries.
The invention relates to a humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-slender steel bar, when the method is applied to a user, firstly a guide pin is used for guiding the humerus proximal elbow joint fracture reduction fixing method from the inner upper condyle bone of the distal humerus to the outer upper condyle bone of the distal humerus through the center of a pulley of the distal humerus under an X-ray monitoring system, then a hollow drill bit is used for drilling a small tunnel along the guide pin, a hollow screw rod is turned into the distal humerus from the inner upper condyle bone of the distal humerus to the distal humerus along the guide pin, and then passes through the center of the pulley of the distal humerus to the outer upper condyle bone of the distal humerus, the fracture of the proximal elbow joint fracture of the humerus is realized by the double-slender steel bar (the tip can be slightly bent), the inner upper condyle bone and the outer upper condyle bone of the distal humerus enter the humerus respectively, the fracture is turned after the fracture is in the intramedullary and touches the humerus wall to reach the proximal humerus, the double-slender steel bar is respectively locked and fixed in a circular sphere at two ends in the hollow screw rod respectively, the humerus near elbow joint fracture reduction fixing method of the interlocking type intramedullary double-slender steel rod is obtained, the operation wound is located at the position of the epicondyle bone (each of which is about 1 centimeter) on the inner side and the outer side of the distal end of the humerus, and belongs to minimally invasive surgery, and an orthopaedist can set a locking and fixing angle of the hollow screw rod matched with the circular spheres at the two ends in the humerus, the double-slender steel rod and the double bolts according to the requirements of conditions in the operation process, so that the fracture reduction fixing purpose is achieved by the treatment of fracture and fracture joint of the humerus near elbow joint, and a good healing effect is achieved.
The invention relates to a humerus proximal elbow joint fracture reduction fixing method of interlocking type intramedullary double-long steel bar, which is characterized in that a hollow screw rod is used, one end of the hollow screw rod is provided with an integrally formed fixing sleeve device, a groove (the appearance is hexagonal), the groove is an inwards concave spherical surface and is used for matching a circular ball with a hollow inner part and a groove at one side and a sleeved section consisting of bolts, the other end of the hollow screw rod is provided with a non-integrally formed fixing sleeve device, the top end of the hollow screw rod is provided with special threads which are used for matching a circular ball with a hollow inner part and a groove at one side of the other hollow inner part, the sleeved section consisting of bolts is used for allowing the intramedullary double-long steel bar to pass through the hollow inner part of the circular ball at two ends by utilizing the hollow inner part of the circular ball at two ends, then the bolts are respectively screwed into the grooves at one side of the circular ball at two ends to compress the grooves at the two ends of the intramedullary double-long steel bar, the special threads are arranged at the other top end of the hollow screw rod and are fastened with the bolt lock, the intramedullary double-slender steel rods at the two ends have the same fixing direction, and can effectively maintain the treatment of fracture and fracture joint fixation of the proximal elbow joint of the humerus by matching with the double-slender steel rods, so that the healing effect of the fracture and fracture joint fixation of the proximal elbow joint of the humerus can be ensured, and the problem that the joint form of the fracture and fracture of the humerus cannot be effectively fixed by the conventional metal sheet and bone nail is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1: is an exploded view of the preferred embodiment of the present invention.
FIG. 2: the combined structure of the double slender steel rods with linear short distance tips and the hollow screw rod in the preferred embodiment of the invention is shown schematically.
FIG. 3: the combined structure of the double slender steel rods with slightly bent tips and long distances and the hollow screw rod in the preferred embodiment of the invention is shown schematically.
FIG. 4: the structural side view of the preferred embodiment of the present invention is shown schematically in figure (i).
FIG. 5: the schematic structural side view of the preferred embodiment of the present invention is shown in fig. (ii).
FIG. 6: the angle setting diagram (I) of the hollow screw according to the preferred embodiment of the present invention is shown.
FIG. 7: the angle setting diagram of the hollow screw according to the preferred embodiment of the present invention is shown in the second embodiment.
FIG. 8: is a schematic diagram of a fracture and fissure of humerus in accordance with a preferred embodiment of the present invention.
FIG. 9: a schematic diagram of a humeral fracture and a small tunnel according to a preferred embodiment of the present invention is shown.
FIG. 10: the humeral fracture and the small tunnel according to the preferred embodiment of the present invention are matched with a hollow screw, a circular ball and a bolt, one end of which is an integrally formed fixing sleeve device, and the other end of which is a non-integrally formed fixing sleeve device, and the top end of which is provided with a special thread matched with the circular ball and the bolt is not screwed into the fixing sleeve device.
FIG. 11: the humeral fracture and the small tunnel according to the preferred embodiment of the present invention are matched with a hollow screw rod with one end being an integrally formed fixing sleeve device, a circular ball body, a bolt being screwed in and another end being a non-integrally formed fixing sleeve device, the top end of the fixing sleeve device is provided with a special thread, and the circular ball body and the bolt are matched in a schematic view.
FIG. 12: the humeral fracture and the small tunnel according to the preferred embodiment of the present invention are matched with a hollow screw, a circular ball and a bolt, one end of which is an integrally formed fixing sleeve device, and the other end of which is a non-integrally formed fixing sleeve device, and the top end of which is provided with a special thread matched with the circular ball and the bolt is screwed into the fixing sleeve device.
FIG. 13: the invention is a schematic diagram (I) of various humeral fracture fractures with straight short-distance tips fixed on both sides of humerus by cross drilling with double slender steel rods.
FIG. 14: the invention is a schematic diagram (II) of various humeral fracture fractures with two long and thin steel rods with straight-line tips and short distances at the ends fixed on the two sides of the humerus by cross drilling.
FIG. 15: the preferred embodiment of the invention is a schematic diagram (III) of various humeral fracture fractures with the tip being straight and short-distance and the two slender steel rods being fixed on the two sides of the humerus by cross drilling.
FIG. 16: the invention is a schematic diagram (IV) of various humeral fracture fractures with the tip being straight short-distance and the two slender steel rods being fixed on the two sides of the humerus by cross drilling.
FIG. 17: the preferred embodiment of the invention adopts the way that the double slender steel rods with the tip in a slightly-curved long distance are wound and crossed in the inner part of the humerus, and the fracture of various humerus fractures which are fixed are clamped by the elasticity of the double slender steel rods (I).
FIG. 18: the preferred embodiment of the invention adopts the two slender steel rods with slightly curved tips and long distances to cross the inner part of the humerus and clamp and fix various humerus fractures by using the elasticity of the steel rods (II).
FIG. 19: the preferred embodiment of the invention adopts the double slender steel rods with the tip in a slightly curved long distance to cross the inner part of the humerus, and the fracture of the humerus of various types is clamped and fixed by the elasticity of the double slender steel rods (III).
FIG. 20: the preferred embodiment of the invention adopts the double slender steel rods with the tip in a slightly-curved long distance to cross the inner part of the humerus in a penetrating way, and the fracture of various humerus fractures which are fixed are clamped by the elasticity of the double slender steel rods (IV).
Wherein, (1) the hollow screw; (10) an integrally formed fixing sleeve device; (11) a groove; (12) the interior is hollow; (13) a lateral cutting groove; (14) a circular sphere; (15) a bolt; (16) a looping section; (20) a non-integral fixed sleeve device; (21) special screw threads; (22) the interior is hollow; (23) a lateral cutting groove; (24) a circular sphere; (25) a bolt; (26) a looping section; (30) an elongated steel bar; (31) an elongated steel bar; (40) the humerus; (41) and (5) a small tunnel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Regarding the fixing method, technical means and efficacy achievement aspects of the present invention, please refer to the drawings for further description in detail as follows:
referring to fig. 1-12, a preferred embodiment of the invention is described, as shown in the figures, the interlocking intramedullary double elongated steel rod proximal humeral elbow fracture reduction fixation method of the invention mainly comprises a hollow screw (1), one end of the hollow screw (1) is an integrally formed fixation sleeve device (10) having a groove (hexagonal in appearance) (11), the groove (11) is an inward concave spherical surface for matching with a circular sphere (14) with an inner hollow (12) and a side cutting groove (13), and a socket section (16) composed of a bolt (15), the other end of the hollow screw (1) is a non-integrally formed fixation sleeve device (20), the top end is provided with a special thread (21) for matching with a circular sphere (24) with another inner hollow (22) and a side cutting groove (23), and a socket section (26) composed of a bolt (25), and the inner hollow (12) (22) of the two circular spheres (14) (24) at both ends is used for allowing the intramedullary double elongated steel rod (14) (24) 30) The (31) penetrates through the hollow screw rod, the tips of the double elongated steel bars (30) (31) can be designed to be linear short-distance (as shown in figure 2), the tips of the double elongated steel bars (30) (31) can also be bent by a tool to be slightly bent long-distance (as shown in figure 3), then bolts (15) (25) are respectively screwed into the cutting grooves (13) (23) on one side of the circular spheres (14) (24) on two ends, the double elongated steel bars (30) (31) on the two ends of the marrow are tightly locked and fixed, when special threads (21) are arranged at the other top end of the hollow screw rod (1) and are tightly locked and fixed with the bolts (25), the fixing directions of the double elongated steel bars (30) (31) in the marrow on the two ends are the same, and the hollow screw rod (1) can be designed to be different in length and size according to the requirements of users.
According to the method, in the process of performing the joint fixation during fracture of the humerus (40), at the fracture part of the humerus (40), a guide needle is firstly used for guiding in from the medial epicondyle bone of the distal end of the humerus (40) under an X-ray monitoring system, the guide needle passes through the center of the distal pulley of the humerus (40) to reach the lateral epicondyle of the distal end of the humerus (40), a small tunnel (41) is drilled along the guide needle by a hollow drill, a hollow screw rod (1) is turned into the distal end of the humerus (40) from the medial epicondyle bone of the distal end of the humerus (40) along the guide needle, the distal end of the humerus (40) passes through the center of the distal pulley of the humerus (40) to reach the lateral epicondyle bone of the distal end of the humerus (40), the proximal elbow joint fracture of the humerus (40) is reset and fixed by double slender steel rods (cuspid microbends) (30) (31), the medial and lateral epicondyle bones of the humerus (40) enter the humerus (40) respectively, and then the humerus (40) is turned after the fracture part is touched to advance in the intramedullary bone to the wall of the humerus (40), reaching the proximal end of the humerus (40), the double slender steel rods (30) and (31) are respectively locked and fixed in the circular spheres (14) and (24) at the two ends in the marrow of the hollow screw (1) to finish the fracture reduction fixing method of the near elbow joint interlocking type ㄡ intramedullary double slender steel rods of the humerus (40), because the operation wound is positioned at the position (about 1 centimeter each) of the medial and lateral epicondyle bones at the distal end of the humerus (40), belonging to the minimally invasive surgery, an orthopedic physician can arbitrarily set the locking and fixing angles of the hollow screw (1) matched with the circular spheres (14) and (24) at the two ends in the marrow, the double slender steel rods (30) (31) and the double bolts (15) (25) in the operation process, the invention can match the double slender steel rods (30) (31) with the straight short distance tips to adopt the drilling and fixing (see the figures 13-16) or match the double slender steel rods (30) (31) with the slightly bent long distance tips to penetrate around the intersection (see the figures 17-20) to ensure the joint sample of the humerus (40) The fracture reduction and fixation treatment of the proximal elbow joint interlocking type ㄡ intramedullary double slender steel rods (30) (31) of the humerus (40) is completed, so that good healing effect is achieved.
In summary, it can be known that the humerus proximal elbow joint fracture reduction fixation method of the interlocking intramedullary double-long steel bar of the present invention is characterized in that a hollow screw is provided, one end of the hollow screw is provided with an integrally formed fixation sleeve device, a groove (hexagonal in appearance) is provided, the groove is an inward concave spherical surface and is used for matching with a circular sphere with a hollow inner part and a groove on one side and a sleeved section consisting of bolts, the other end of the hollow screw is provided with a non-integrally formed fixation sleeve device, the top end of the hollow screw is provided with a special thread and is used for matching with a circular sphere with a hollow inner part and a groove on one side and a sleeved section consisting of bolts, the intramedullary double-long steel bar is passed through the hollow inner part of the circular sphere with two ends by using the hollow inner part of the circular sphere with two ends, then the two circular spheres with one side grooves with the circular sphere with two ends are compressed by using the bolts to closely lock and fix the intramedullary double-long steel bar with the special thread on the other top end of the hollow screw, the intramedullary double-slender steel rods at the two ends have the same fixing direction and can be matched with the double-slender steel rods to effectively maintain the treatment of fracture and joint fixation of the proximal elbow joint of the humerus, so that the healing effect of the humerus is ensured, and the problems and the defects possibly faced by the conventional fixing method are effectively solved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. An interlocking intramedullary double-slender steel rod humerus proximal elbow joint fracture reduction fixing method is characterized by comprising the following steps:
a hollow screw rod, one end of the hollow screw rod is an integrated fixed sleeve device and is provided with a groove, the groove is an inward concave spherical surface and is used for matching with a circular ball body with a hollow inner part and a groove on one side, and a sleeve section consisting of bolts, the other end of the hollow screw is provided with a non-integral fixed sleeve device, the top end of the hollow screw is provided with special threads for matching with another hollow round ball with a groove on one side, and a hitching section consisting of bolts, wherein the inner parts of the round spheres at the two ends are hollow, so that the intramedullary double-slender steel bars can pass through the hitching section, and then the bolts are respectively screwed into the cutting grooves at one side of the round spheres at the two ends to closely and tightly lock and fix the intramedullary double-slender steel bars of the round spheres at the two ends, when the other top end of the hollow screw is provided with special threads and is fastened and fixed with the bolt lock, the fixing directions of the intramedullary double slender steel rods at the two ends are the same, and the hollow screw can be designed into different lengths and different diameters according to the requirements of users;
wherein the groove is hexagonal in appearance.
2. A method for restoring and fixing the broken proximal elbow joint of humerus features that a guide needle is used to guide the broken bone from the internal epicondyle of humerus to the external epicondyle of humerus, a hollow drill bit is used to drill a small tunnel along said guide needle, a hollow screw rod is turned from the internal epicondyle of humerus to the distal end of humerus, and then to the external epicondyle of humerus, and a circular steel rod is used to make the distal and external epicondyles enter the humerus and go forward to touch the wall of humerus, thus obtaining the humerus proximal elbow joint fracture reduction and fixation method which can complete the interlocking intramedullary double-slender steel bar;
wherein, the pointed end of the double slender steel bars has a radian.
3. The method for reduction and fixation of proximal elbow fracture of humerus of claim 1, wherein the locking angle of the hollow screw rod, the round ball at the two ends of the intramedullary nail, the double elongated steel rods and the double bolts is set according to the operation requirement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010074458.7A CN113143430A (en) | 2020-01-22 | 2020-01-22 | Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010074458.7A CN113143430A (en) | 2020-01-22 | 2020-01-22 | Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar |
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| CN113143430A true CN113143430A (en) | 2021-07-23 |
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