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 PDFInfo
- 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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- Prior art keywords
- negative pressure
- neck
- decompression
- screw
- femur
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
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- A61M1/0023—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods 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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560073.0A CN105078553B (en) | 2015-09-07 | 2015-09-07 | Neck of femur side openings conduction decompression hollow lag screw system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560073.0A CN105078553B (en) | 2015-09-07 | 2015-09-07 | Neck of femur side openings conduction decompression hollow lag screw system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105078553A true CN105078553A (en) | 2015-11-25 |
| CN105078553B CN105078553B (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510560073.0A Active CN105078553B (en) | 2015-09-07 | 2015-09-07 | Neck of femur side openings conduction decompression hollow lag screw system |
Country Status (1)
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| CN (1) | CN105078553B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730072A (en) * | 2017-03-15 | 2017-05-31 | 四川大学 | Pressure release nail in bone |
| CN109820589A (en) * | 2019-04-04 | 2019-05-31 | 南京市儿童医院 | Bone cyst decompression drainage hollow lag screw |
| 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 |
| CN114917009A (en) * | 2022-05-12 | 2022-08-19 | 中国人民解放军总医院第四医学中心 | Full-thread lag screw with enhanced mechanics |
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| 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 |
-
2015
- 2015-09-07 CN CN201510560073.0A patent/CN105078553B/en active Active
Patent Citations (8)
| 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730072A (en) * | 2017-03-15 | 2017-05-31 | 四川大学 | Pressure release nail in bone |
| CN106730072B (en) * | 2017-03-15 | 2023-08-11 | 四川大学 | Pressure relief nail in bone |
| CN109820589A (en) * | 2019-04-04 | 2019-05-31 | 南京市儿童医院 | Bone cyst decompression drainage hollow lag screw |
| 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 |
| CN114917009A (en) * | 2022-05-12 | 2022-08-19 | 中国人民解放军总医院第四医学中心 | Full-thread lag screw with enhanced mechanics |
| CN114917009B (en) * | 2022-05-12 | 2022-10-25 | 中国人民解放军总医院第四医学中心 | Full-thread lag screw with enhanced mechanics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105078553B (en) | 2017-06-09 |
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