CN105078553A - Femur neck side hole drainage pressure reducing hollow tension screw system - Google Patents

Femur neck side hole drainage pressure reducing hollow tension screw system Download PDF

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Publication number
CN105078553A
CN105078553A CN201510560073.0A CN201510560073A CN105078553A CN 105078553 A CN105078553 A CN 105078553A CN 201510560073 A CN201510560073 A CN 201510560073A CN 105078553 A CN105078553 A CN 105078553A
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CN
China
Prior art keywords
negative pressure
neck
decompression
screw
femur
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Granted
Application number
CN201510560073.0A
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Chinese (zh)
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CN105078553B (en
Inventor
贾永建
宋洁富
荆志振
闫桂花
缪国帅
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Beijing Fule Science & Technology Development Co Ltd
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Beijing Fule Science & Technology Development Co Ltd
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Priority to CN201510560073.0A priority Critical patent/CN105078553B/en
Publication of CN105078553A publication Critical patent/CN105078553A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/683Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8605Heads, i.e. proximal ends projecting from bone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/8625Shanks, i.e. parts contacting bone tissue
    • A61B17/863Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • A61B17/864Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564Methods for bone or joint treatment

Abstract

The invention relates to a femur neck side hole drainage pressure reducing hollow tension screw system, in particular to a system used for femur neck fracture and femoral head osteonecrosis, and belongs to the field of medical appliances. The femur neck side hole drainage pressure reducing hollow tension screw system is applicable to bone surgeries, and comprises a femur neck side hole drainage pressure reducing hollow tension screw (1), a single-head external connection negative pressure drainage device (2) and a multi-head external connection negative pressure drainage device (3), wherein drainage pressure reducing side holes (11) are uniformly distributed in the screw body part of the femur neck side hole drainage pressure reducing hollow tension screw (1) and are communicated with a screw body hollow tubular structure (10); a threaded hole (9) formed inside the right side of the screw tail of the femur neck side hole drainage pressure reducing hollow tension screw can be matched with external joint screw threads (12) of the single-head external connection negative pressure drainage device (2); and the external connection negative pressure drainage device is realized.

Description

Neck of femur side openings conduction decompression hollow lag screw system
Technical field
The present invention relates to neck of femur side openings conduction decompression hollow lag screw system, particularly relate to fracture of femoral neck and femur head necrosis, belong to medical instruments field, be applicable in bone surgery.
Background technology
All may there is fracture of femoral neck in various age bracket, but the most common with the old people of more than 50 years old, and women is more than male.Basis due to osteoporosis of being everlasting occurs, and wound violence can be lighter.And young and middle-aged fracture of femoral neck is often caused by larger violence.The disability rate of fracture of femoral neck and fatality rate are all higher, have become one of chief threat causing life of elderly person Quality Down or death.By region of anatomy typing: fracture of femoral neck was once divided into three types according to the region of anatomy of fracture by many authors: head mo(u)ld bottom half, through neck type and base type.Wherein head mo(u)ld bottom half and belong to intracapsular fracture through neck type, base type then belongs to extracapsular fracture.Head mo(u)ld bottom half refers to the fracture be positioned in the middle part of neck of femur, and base type refers to and is positioned at base of nebk ot femur and intertrochanteric fracture.Many nails are fixed: general employing three pieces, and pin footpath is comparatively thin, and cumulative volume is less than Dan Ding, therefore less to the damage of bone.Many nails are fixing can pass through rational deployment, bears different stress respectively and prevents from rotating.In addition, compression hollow screw technology is adopted in recent years, simple and easy because operating, be especially applicable to old case.After femoral neck fracture joint intraluminal pressure raises to have literature research result to show, affect the backflow of capital arterial perfusion and venous blood, it is one of reason causing After femoral neck fracture femur head necrosis, what alleviation, reduction joint intraluminal pressure can avoid femoral neck blood to transport damages again, reduces the incidence rate of femur head necrosis.For many nails internal fixtion of fracture of femoral neck in joint capsule, existing screw and technology can only solve the stability problem of fracture site, and pressure in femoral neck bone bellows and in neck of femur marrow to be increased and the later stage femur head necrosis problem that causes can not solve well, need row joint capsule open decompression or closed marrow internal decompression separately.
Therefore, in the stability that a kind of disposable solution fracture of femoral neck is provided to provide and capsule, the internal fixation screw system of decompression in marrow.
Summary of the invention
For prior art Problems existing, the invention provides neck of femur side openings conduction decompression hollow lag screw system.
To achieve these goals, the invention provides neck of femur side openings conduction decompression hollow lag screw system, described neck of femur side openings conduction decompression hollow lag screw system comprises neck of femur side openings conduction decompression hollow lag screw, single head external connecting negative pressure drainage system and bull external connecting negative pressure drainage system, described neck of femur side openings conduction decompression hollow lag screw left end adopts the design of self-taped type ailhead, be widely-pitched screw thread outside rivet nut left end position, rivet nut right-hand member position external side light is sliding without screw thread, right-hand member nail tail bit left hand external is reducing narrow pitch screw thread, nail tail centre position is the distribution of ladder shaft-like, on the right side of nail tail, inside is screwed hole, neck of femur side openings conduction decompression hollow lag screw is hollow tubular structure, rivet nut position is uniformly distributed decompression drainage side opening and communicates with rivet nut hollow tubular structure, regular screw thread outside described single head external connecting negative pressure drainage system left end coupling, be coupling retardance afterbody, drainage tube successively after coupling screw thread, wherein said coupling screw thread and the described neck of femur side openings conduction corresponding threaded holes that hollow lag screw to follow closely on the right side of tail inside that reduces pressure closes, described bull external connecting negative pressure drainage system comprises the single head external connecting negative pressure drainage system in three directions, single or multiple union joint can be selected to use according to clinical practice situation, for operation provides convenient.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
Fig. 2 is the structure chart of single head external connecting negative pressure drainage system of the present invention.
Fig. 3 is the structure chart of bull external connecting negative pressure drainage system of the present invention.
In figure:
1 neck of femur side openings conduction decompression hollow lag screw, 2 single head external connecting negative pressure drainage systems, 3 bull external connecting negative pressure drainage systems, 4 self-taped type ailheads, 5 widely-pitched screw threads, 6 nail tails, 7 reducing narrow pitch screw threads, 8 ladder shaft-like, 9 screwed holes, 10 hollow tubular structures, 11 decompression drainage side openings, 12 coupling screw threads, 13 coupling retardance afterbody, 14 drainage tubes.
Detailed description of the invention
For making object of the present invention, technical scheme clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Shown in Fig. 3, the invention provides neck of femur side openings conduction decompression hollow lag screw system, described neck of femur side openings conduction decompression hollow lag screw system comprises neck of femur side openings conduction decompression hollow lag screw 1, single head external connecting negative pressure drainage system 2 and bull external connecting negative pressure drainage system 3, described neck of femur side openings conduction decompression hollow lag screw 1 left end adopts self-taped type ailhead 4 to design, be widely-pitched screw thread 5 outside rivet nut left end position, rivet nut right-hand member position external side light is sliding without screw thread, right-hand member nail tail 6 left hand external is reducing narrow pitch screw thread 7, nail tail 6 centre position is that ladder shaft-like 8 distributes, on the right side of nail tail 6, inside is screwed hole 9, neck of femur side openings conduction decompression hollow lag screw 1 is hollow tubular structure 10, rivet nut position is uniformly distributed decompression drainage side opening 11, having screw thread outside described single head external connecting negative pressure drainage system 2 left end coupling, is coupling retardance afterbody 13, drainage tube 14 successively after coupling screw thread 12, described bull external connecting negative pressure drainage system 3 comprises the single head external connecting negative pressure drainage system 2 in three directions, single or multiple union joint can be selected to use according to clinical practice situation, for operation provides convenient.
The equally distributed decompression drainage side opening 11 in described rivet nut position communicates with rivet nut hollow tubular structure 10.
Described reducing narrow pitch screw thread 7 adopts coniform variable diameter design, has guiding function.
On the right side of described neck of femur side openings conduction decompression hollow lag screw nail tail, inner screwed hole 9 can be connected with the coupling screw thread 12 of described single head external connecting negative pressure drainage system 2, realizes external connecting negative pressure drainage system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should protect within protection scope of the present invention.

Claims (4)

1. neck of femur side openings conduction decompression hollow lag screw system, it is characterized in that, comprise neck of femur side openings conduction decompression hollow lag screw (1), single head external connecting negative pressure drainage system (2) and bull external connecting negative pressure drainage system (3), described neck of femur side openings conduction decompression hollow lag screw (1) left end adopts self-taped type ailhead (4) design, be widely-pitched screw thread (5) outside rivet nut left end position, rivet nut right-hand member position external side light is sliding without screw thread, right-hand member nail tail (6) left hand external is reducing narrow pitch screw thread (7), nail tail (6) centre position is ladder shaft-like (8) distribution, inside, nail tail (6) right side is screwed hole (9), neck of femur side openings conduction decompression hollow lag screw (1) is hollow tubular structure (10), rivet nut position is uniformly distributed decompression drainage side opening (11), having screw thread outside described single head external connecting negative pressure drainage system (2) left end coupling, is coupling retardance afterbody (13), drainage tube (14) successively after coupling screw thread (12), described bull external connecting negative pressure drainage system (3) comprises the single head external connecting negative pressure drainage system (2) in three directions, single or multiple union joint can be selected to use according to clinical practice situation, for operation provides convenient.
2. neck of femur side openings conduction decompression hollow lag screw system according to claim 1, is characterized in that: the equally distributed decompression drainage side opening (11) in rivet nut position communicates with rivet nut hollow tubular structure (10).
3. neck of femur side openings conduction decompression hollow lag screw system according to claim 1, is characterized in that: described reducing narrow pitch screw thread (7) adopts coniform variable diameter design, has guiding function.
4. neck of femur side openings conduction decompression hollow lag screw system according to claim 1, it is characterized in that: on the right side of described neck of femur side openings conduction decompression hollow lag screw nail tail, inner screwed hole (9) can be connected with the coupling screw thread (12) of described single head external connecting negative pressure drainage system (2), realizes external connecting negative pressure drainage system.
CN201510560073.0A 2015-09-07 2015-09-07 Neck of femur side openings conduction decompression hollow lag screw system Active CN105078553B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109984831A (en) * 2019-04-08 2019-07-09 毛玉江 A kind of femoral head is interior to depressurize self-circulation power hip screw system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040054338A1 (en) * 2002-09-13 2004-03-18 Farhad Bybordi Closed wound drainage system
CN101120887A (en) * 2007-07-10 2008-02-13 西安交通大学 Negative pressure therapeutic instrument for treating femoral head necrosis
CN201101568Y (en) * 2007-10-26 2008-08-20 祝玉堂 Interplantated negative pressure flow increasing device for blood inside bone
CN102058426A (en) * 2010-12-29 2011-05-18 洪宁 Pressurized hollow nail
CN201912520U (en) * 2011-01-17 2011-08-03 朱新生 Special soft pad for wound surface rinsing-negative pressure closed drainage
WO2013056412A1 (en) * 2011-10-18 2013-04-25 Zhu Xinsheng Dedicated dressing structure for sealed drainage under negative pressure
CN203988329U (en) * 2014-07-11 2014-12-10 苏州苏南捷迈得医疗器械有限公司 One does not wait the hollow forcing screw of span
CN204971530U (en) * 2015-09-07 2016-01-20 北京市富乐科技开发有限公司 Hollow pulling force screw system of thighbone neck side opening drainage decompression

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040054338A1 (en) * 2002-09-13 2004-03-18 Farhad Bybordi Closed wound drainage system
CN101120887A (en) * 2007-07-10 2008-02-13 西安交通大学 Negative pressure therapeutic instrument for treating femoral head necrosis
CN201101568Y (en) * 2007-10-26 2008-08-20 祝玉堂 Interplantated negative pressure flow increasing device for blood inside bone
CN102058426A (en) * 2010-12-29 2011-05-18 洪宁 Pressurized hollow nail
CN201912520U (en) * 2011-01-17 2011-08-03 朱新生 Special soft pad for wound surface rinsing-negative pressure closed drainage
WO2013056412A1 (en) * 2011-10-18 2013-04-25 Zhu Xinsheng Dedicated dressing structure for sealed drainage under negative pressure
CN203988329U (en) * 2014-07-11 2014-12-10 苏州苏南捷迈得医疗器械有限公司 One does not wait the hollow forcing screw of span
CN204971530U (en) * 2015-09-07 2016-01-20 北京市富乐科技开发有限公司 Hollow pulling force screw system of thighbone neck side opening drainage decompression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109984831A (en) * 2019-04-08 2019-07-09 毛玉江 A kind of femoral head is interior to depressurize self-circulation power hip screw system
CN109984831B (en) * 2019-04-08 2021-01-05 毛玉江 Femoral head internal decompression self-circulation dynamic hip screw system

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