CN208659523U - A kind of femur marrow inner fixing device - Google Patents

A kind of femur marrow inner fixing device Download PDF

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Publication number
CN208659523U
CN208659523U CN201721738428.1U CN201721738428U CN208659523U CN 208659523 U CN208659523 U CN 208659523U CN 201721738428 U CN201721738428 U CN 201721738428U CN 208659523 U CN208659523 U CN 208659523U
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China
Prior art keywords
nail
pinning
common
fixing device
inner fixing
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Active
Application number
CN201721738428.1U
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Chinese (zh)
Inventor
赵国军
谢宏辉
郑铁钢
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TIANJIN WEIMAN BIOLOGICAL MATERIAL CO Ltd
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TIANJIN WEIMAN BIOLOGICAL MATERIAL CO Ltd
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Priority to CN201721738428.1U priority Critical patent/CN208659523U/en
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Abstract

The utility model femur marrow inner fixing device is that one kind is applied to orthopaedics therapy fractured near end of thighbone, carries out the Medullary fixation device of broken ends of fractured bone reset, connection, fixation, belongs to medical instrument, including the main nail of intramedullary nail with lock, reconstruction pinning, common pinning, tail plug.Wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock, pinning and common pinning are rebuild by cortical bone, passes through the main nail nail hole of intramedullary nail with lock, tail plug screws in the main nail tailing screw flight hole of intramedullary nail with lock, resetted, connected and fixed to fracture site.The main nail of intramedullary nail is hollow structure, and tail portion is helicitic texture, and proximal end, which is at an angle of, is distributed 2-3 common locking nail holes, 1 pressurization locking nail hole, 2 reconstruction locking nail holes, and cadre is attached to spiral relief groove, the 2 common locking nail holes in distal end, 1 pressurization locking nail hole, 1 pressurization platform;Reconstruction pinning is hollow structure, is half-thread structure, deep thread design;Common pinning is full thread structure, shallow thread design.

Description

A kind of femur marrow inner fixing device
Technical field
The utility model femur marrow inner fixing device, be it is a kind of be applied to orthopaedics therapy femoral fracture, carry out broken ends of fractured bone reset, Connection, fixed Medullary fixation device belong to medical instrument, including the main nail of intramedullary nail with lock, reconstruction pinning, common pinning, tail Plug.
Background technique
Currently, orthopaedics therapy femoral fracture is main means using implants, implants are mainly metal bone fracture plate, synthetism Spheric pressure hole, locking screw thread hole or dynamic pressurization and locking screw thread combined hole are set on plate, pass through various forms of synthetisms Fracture site is fixed in screw, and then achievees the purpose that treat bone fracture and osteopathy.Wherein: Dynamic Compression Plate, pressurize spiral shell Fracture region axial pressure is completed in the placement of nail, forms Titanic micro-plates, such product is when union, no poroma shape At may result in infection, bone nonunion and fracture delayed union;Locking screw thread hole, screw thread are arranged on bone plate for locking bone fracture plate It is formed in a metastable bridge joint and is fixed by lock screw for double thread structure, can generated and be formed with poroma The second stage of knitting, such product can not pressurize to fracture site, strong bone plate, strong screw and fracture segment point From this triplicity gets up will lead to locking system extraction, broken nail under bone nonunion, stress;Locked pressurized bone plate was both Dynamic Compression Plate use can be served only as, inner support can also be used as to use or upper two ways by lock screw Joint.Bone plate implants are that tension side is fixed, and are easy to happen stress shielding, generate fatigue fracture, implants is caused to be lost Effect.
Summary of the invention
The purpose of this utility model is to provide a kind of femur marrow for the deficiency of bone plate implants product described above Inner fixing device is rebuild pinning and common pinning by cortical bone, is passed through wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock The main nail nail hole of intramedullary nail with lock, tail plug screw in the main nail tailing screw flight hole of intramedullary nail with lock, are resetted, connected to fracture site And fixation, prevent the main nail of intramedullary nail with lock solid failures such as rotation, displacement in pulp cavity, fixed, increase centered on Medullary fixation The stability of fracture fixation.
Femur marrow inner fixing device takes following scheme to implement: femur marrow inner fixing device includes intramedullary nail with lock master Nail rebuilds pinning, common pinning, tail plug.The main nail of intramedullary nail is hollow structure, and bending angle meets Human Physiology angle at rivet nut two Degree, tail portion are helicitic texture, and proximal end, which is at an angle of, is distributed 2-3 common locking nail holes, 1 pressurization locking nail hole, 2 reconstruction locking nail holes, Cadre is attached to spiral relief groove, the 2 common locking nail holes in distal end, 1 pressurization locking nail hole, 1 pressurization platform;It rebuilds during pinning is Hollow structure is half-thread structure, deep thread design;Common pinning is full thread structure, shallow thread design;Rebuild pinning and common Pinning passes through the main nail nail hole of intramedullary nail with lock by cortical bone.Tail plug is interior hexagonal or interior hexagonal flower-shape driving type, passes through spiral shell Line and the main nail of intramedullary nail with lock connect.
The design of femur marrow inner fixing device meets Human Physiology anatomical structure, has good biomechanical property, due to Intramedullary nail with lock master, which nails on to be provided with, in femur marrow inner fixing device rebuilds locking nail hole, pressurization locking nail hole and common locking nail hole, can Pinning and common pinning are rebuild with installation.The main nail of intramedullary nail with lock is fixed on subjects bones by the above structure type of the utility model It in pulp cavity, while rebuilding pinning and common pinning nail main to intramedullary nail with lock is fixed simultaneously, prevent from rotating, enhancing fracture is solid Fixed reliability accelerates the healing of fracture, guarantees successful surgery, reduces the risk of second operation, reduce the pain of sufferer.
Detailed description of the invention
It is the further explanation in conjunction with attached drawing to the utility model below.
Fig. 1 is the main nail main view of intramedullary nail with lock in femur marrow inner fixing device.
Fig. 2 is the reconstruction pinning main view in femur marrow inner fixing device.
Fig. 3 is the common pinning main view in femur marrow inner fixing device.
Fig. 4 is the tail plug schematic diagram in femur marrow inner fixing device.
Fig. 5 is schematic diagram after the implantation of femur marrow inner fixing device
Specific embodiment
Referring to attached drawing 1~5, femur marrow inner fixing device structure has the main nail 1 of intramedullary nail with lock, in the main nail of intramedullary nail with lock 2 reconstruction locking nail hole 1-1 are set, and commonly locking nail hole 1-2,1 pressurization locking nail hole 1-3, cadre are attached for the angled distribution in proximal end 2-3 Band spiral relief groove 1-4, the 2 common locking nail hole 1-5 in distal end, 1 pressurization locking nail hole 1-6,1 pressurization platform 1-7, tail portion is spiral shell Line structure 1-8 (see Fig. 1).Pinning 2 is rebuild, is hollow structure, is half-thread structure, deep thread designs (see Fig. 2).Common pinning 3 be full thread structure, shallow thread designs (see Fig. 3).Tail plug is helicitic texture 4-1, is driven using interior hexagonal or interior hexagonal flower-shape Pattern 4-2,4-3 (see Fig. 4).
When in use, the main nail 1 of intramedullary nail with lock is placed in inside human body pulp cavity for femur marrow inner fixing device, logical using bone drill It crosses the main nail 1 of intramedullary nail with lock and rebuilds locking nail hole 1-1, common locking nail hole 1-2,1-5, pressurization locking nail hole 1-3,1-6 are bored on bone Bottom outlet is implanted into 2 pieces of reconstruction pinnings 2, is implanted into common pinning 3, after completing the above operation, screws in tail plug 4, makes tail screw thread 4-1 beyond the Great Wall It is screwed with main nail tailing screw flight 1-8, (see Fig. 5) is completed in the implantation of femur marrow inner fixing device, completes surgical procedure.

Claims (7)

1. a kind of femur marrow inner fixing device, including the main nail of intramedullary nail with lock, reconstruction pinning, common pinning, tail plug, feature exist It is hollow structure in the main nail of intramedullary nail, tail portion is helicitic texture, and 2-3 common locking nail holes of the angled distribution in proximal end, 1 proximal end adds Locking nail hole, 2 reconstruction locking nail holes are pressed, cadre is attached to spiral relief groove, and distal end is distributed 2 common locking nail holes, 1 distal end pressurization lock Nail hole, 1 pressurization platform are rebuild pinning and are used cooperatively with lock hole is rebuild, common pinning and common locking nail hole and proximal end, distal end Pressurization locking nail hole is used cooperatively, and tail plug is used cooperatively with main nail tailing screw flight structure.
2. femur marrow inner fixing device according to claim 1, it is characterised in that reconstruction pinning is hollow structure.
3. femur marrow inner fixing device according to claim 1 or 2, it is characterised in that reconstruction pinning head is half-thread knot Structure, deep thread design.
4. femur marrow inner fixing device according to claim 1, it is characterised in that common pinning designs for full thread.
5. femur marrow inner fixing device according to claim 1 or 4, it is characterised in that common pinning designs for shallow thread.
6. femur marrow inner fixing device according to claim 1, it is characterised in that tail plug is helicitic texture.
7. femur marrow inner fixing device according to claim 1 or 6, it is characterised in that tail plug is interior hexagonal or interior hexagonal flower Shape driving type.
CN201721738428.1U 2017-12-13 2017-12-13 A kind of femur marrow inner fixing device Active CN208659523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721738428.1U CN208659523U (en) 2017-12-13 2017-12-13 A kind of femur marrow inner fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721738428.1U CN208659523U (en) 2017-12-13 2017-12-13 A kind of femur marrow inner fixing device

Publications (1)

Publication Number Publication Date
CN208659523U true CN208659523U (en) 2019-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721738428.1U Active CN208659523U (en) 2017-12-13 2017-12-13 A kind of femur marrow inner fixing device

Country Status (1)

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CN (1) CN208659523U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112704556A (en) * 2020-12-22 2021-04-27 安阳市伊来达医疗器械有限公司 Anti-sinking anti-rotation rectangular wedge-shaped intramedullary fixation device for orthopedics department

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112704556A (en) * 2020-12-22 2021-04-27 安阳市伊来达医疗器械有限公司 Anti-sinking anti-rotation rectangular wedge-shaped intramedullary fixation device for orthopedics department

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