CN105011998A - Wing-shaped intramedullary nail - Google Patents
Wing-shaped intramedullary nail Download PDFInfo
- Publication number
- CN105011998A CN105011998A CN201510511004.0A CN201510511004A CN105011998A CN 105011998 A CN105011998 A CN 105011998A CN 201510511004 A CN201510511004 A CN 201510511004A CN 105011998 A CN105011998 A CN 105011998A
- Authority
- CN
- China
- Prior art keywords
- nail
- bar
- intramedullary pin
- wing
- shaped trough
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/7241—Intramedullary pins, nails or other devices with special means of locking the nail to the bone the nail having separate elements through which screws pass
-
- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
-
- 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 discloses a wing-shaped intramedullary nail. The wing-shaped intramedullary nail comprises a main nail body (1) and a plurality of auxiliary nail bodies (2). The main nail body (1) comprises a nail head (11), a nail rod (12) and a nail tail (13). The nail rod (12) is provided with a plurality of strip-shaped grooves (14). An opening in one end of any strip-shaped groove (14) is formed in the nail tail (13), and an opening in the other end of any strip-shaped groove (14) is formed in the nail rod (12), and the groove bottom in the end is in an arc shape and flushed with the edge of the opening. The auxiliary nail bodies (2) are inserted into the strip-shaped grooves (12) one by one. The tip ends (21) of the auxiliary nail bodies (2) pass through the arc-shaped groove bottoms and then distributed around the nail rod (12) in an upwarp mode. The wing-shaped intramedullary nail is more firmly fixed and especially solves the problem that the fracture portion is not prone to being fixed due to rarefaction of bones and unstable inner cortex.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly, the present invention relates to a kind of wing intramedullary pin.
Background technology
Fracture is that the seriality of bone structure ruptures wholly or in part.The main cause that fracture occurs mainly contains three kinds of situations: 1) direct violence: violence directly acts on a certain position of skeleton and causes this position fracture, often accompanies soft tissue injury in various degree.As wheel clashes into shank, there is fracture of shafts of tibia and fibula in shock place.2) indirect violence: by longitudinally conduction, leverage or twisting action make to fracture at a distance during indirect violence effect, as fall from eminence foot land time, trunk because gravity relation is sharply to pre-buckling, the vertebral body generation compressibility of breast lumbar spine intersection or bursting fracture.3) accumulation property strain: for a long time, repeatedly, slight direct or indirect damage can cause limbs a certain specific part fracture, also known as fatigue fracture, easily causes 1/3 shaft fracture under second and third metatarsal and fibula as walked at a distance.
The treatment of fracture generally adopts replacement and fixation, and after the reduction of the fracture, because of instability, easy generation is shifted again, diverse ways therefore will be adopted to be fixed in satisfied position, make it heal gradually.Conventional fixing means has: plintlet, plaster bandage, exterior fixation bracket, traction braking are fixing, and these fixing meanss claim extenal fixation.If fixing by surgical incision steel plate, draw point, intramedullary pin, screw etc., then claim internal fixtion.But partial fracture is after with Intramedullary nailing, due to the activity of human body, intramedullary pin often loosens along with the motion of human body, and for elderly patients, owing to mostly there is osteoporotic problem, also easily loosen after osteoporosis is fixing, intramedullary pin loosens thus makes fixed position and loosens, and then cause fracture site again to disconnect, affect union of fracture.
Therefore, a kind of intramedullary pin that can overcome above-mentioned shortcoming of research design is needed badly.
Summary of the invention
The object of the invention is to, provide a kind of wing intramedullary pin, this Intramedullary nailing is more firm, especially solves the problem that fracture site that osteoporosis and inner cortex instability cause not easily is fixed.
For achieving the above object, present invention employs following technical scheme:
A kind of wing intramedullary pin, described intramedullary pin comprises main nail 1 and some pair nails 2;
Described main nail 1 comprises ailhead 11, nail bar 12 and nail tail 13, and described nail bar 12 arranges some bar-shaped troughs 14, and described arbitrary bar-shaped trough 14 one end open is in nail tail 13, and the other end is opened on nail bar 12 and the bottom land of this end is curved and with opening along concordant;
Described some pair nails 2 one_to_one corresponding insert in bar-shaped trough 14, and the tip 21 of secondary nail 2 at the bottom of the arcuate groove of bar-shaped trough 14 after, be distributed in around nail bar 12 in upwarping shape.
Further, described intramedullary pin also comprises a support bar 3, and described support bar 3 butt end arranges supported hole 31, and the nail bar 12 of main nail 1 passes supported hole 31 and support bar 3 intersects in 135 ° of angles with nail bar 12.To those skilled in the art, the intersecting angle of support bar and nail bar can fixed position different and selecting as required, such as select other angles etc.
Further, the hole inwall of described supported hole 31 arranges the open slot 32 corresponding with the bar-shaped trough 14 followed closely on bar 12.Described bar-shaped trough and open slot one_to_one corresponding, what form secondary nail passes passage.Described bar-shaped trough is identical with the quantity of open slot, and one_to_one corresponding.
Again further, the taper end of described support bar 3 is provided with pressurization fixing hole and fixing hole.For adopting screw, support bar is fixed on backbone.
Preferably, the opening of described bar-shaped trough 14 on nail bar 12 is 1/1 to three/5th nail pole length apart from the distance of ailhead 11.
Preferably, described bar-shaped trough 14 is semi-circular groove.Those skilled in the art can also select the bar-shaped trough of other shapes as required, and such as cross section is rectangle etc.In the present invention, bar-shaped trough can only at both ends open, the middle duct for nail bar inside; Also can bar-shaped trough opening on the whole, if this bar-shaped trough can meet secondary nail through, and make the tip of secondary nail inserting in bone in upwarping shape through after this bar-shaped trough.
Preferably, the number of described bar-shaped trough 14 is three.Those skilled in the art can also select other quantity, such as four etc.
Preferably, described nail tail 13 end face arranges interior hex slot 15.Those skilled in the art can also select the inside groove of other shapes, and this groove is mainly used in intramedullary pin to be screwed in bone, and it can adopt the inside groove of other routines, such as cross bath etc.
Preferably, described nail bar 12 is cylindrical.Those skilled in the art can also select the nail bar of other shapes.
Preferably, the making material of described intramedullary pin is titanium alloy.Those skilled in the art can also select other to make material, such as rustless steel etc.
Axle center arranges through hole 16 to intramedullary pin described in the present invention.This through hole is convenient to the insertion of Kirschner wire, for guiding etc.
In the present invention, nail bar can arrange screw thread, and when arranging screw thread, this intramedullary pin can be screwed in bone, and nail bar also can not arrange screw thread, and when not arranging screw thread, nail bar directly knocks in bone.
The present invention is mainly applicable to the intertrochanteric fracture, humeral fracture etc. of osteoporosis patient.
Concrete using method of the present invention is: for intertrochanteric fracture, first knochenbruch 5 is resetted, bone 4 is looked for suitable some punching position, then support bar 3 is inserted in femur, punch for the oblique femoral head of supported hole 31 again and adopt Kirschner wire to locate, the through hole 16 of main nail positions through Kirschner wire and is screwed into main nail, then secondary nail 2 is squeezed into successively in the passage formed at bar-shaped trough 14 and open slot 32, this kind of fixed form can be more firm, is especially applicable to the patient with sufferers of osteoporosis face and inner cortex instability.
The present invention is compared to prior art, and its advantage is: intramedullary pin is designed to main nail and secondary nail by the present invention, and secondary nail is used for further being fixed main nail, and the intramedullary pin that can prevent sufferers of osteoporosis face from causing because sclerotin is shaky loosens.
Accompanying drawing explanation
Fig. 1 is the structural representation of intramedullary pin of the present invention;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the structural representation of support bar of the present invention;
Fig. 4 is the result of use figure of intramedullary pin of the present invention to fracture fixation;
Reference numeral: 1, main nail; 11, ailhead; 12, bar is followed closely; 13, tail is followed closely; 14, bar-shaped trough; 15, hex shaped groove; 16, through hole; 2, secondary nail; 21, most advanced and sophisticated; 3, support bar; 31, supported hole; 32, open slot; 4, bone; 4, knochenbruch.
Detailed description of the invention
With the drawings and specific embodiments, the present invention is further detailed explanation below.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of wing intramedullary pin, described intramedullary pin comprises main nail 1 and three secondary nails 2;
Described main nail 1 comprises ailhead 11, nail bar 12 and nail tail 13, described nail bar 12 is arranged three bar-shaped troughs 14, and described arbitrary bar-shaped trough 14 one end open is in nail tail 13, and the other end is opened on nail bar 12 and the bottom land of this end is curved and with opening along concordant;
Described pair nail 2 one_to_one corresponding insert in bar-shaped trough 14, and the tip 21 of secondary nail 2 at the bottom of the arcuate groove of bar-shaped trough 14 after, be distributed in around nail bar 12 in upwarping shape.
Described intramedullary pin also comprises a support bar 3, and described support bar 3 butt end arranges supported hole 31, and the nail bar 12 of main nail 1 passes supported hole 31 and support bar 3 intersects in 135 ° of angles with nail bar 12.The hole inwall of described supported hole 31 is arranged the open slot 32 corresponding with the bar-shaped trough 14 on nail bar 12.Described bar-shaped trough and open slot one_to_one corresponding, what form secondary nail passes passage.The taper end of described support bar 3 is provided with pressurization fixing hole and fixing hole.For adopting screw, support bar is fixed on backbone.
The opening of described bar-shaped trough 14 on nail bar 12 is 1/4th nail pole lengths apart from the distance of ailhead 11.Described bar-shaped trough 14 is semi-circular groove.Described nail tail 13 end face arranges interior hex slot 15.Described nail bar 12 is cylindrical.The making material of described intramedullary pin is titanium alloy.
Axle center arranges through hole 16 to intramedullary pin described in the present invention.This through hole is convenient to the insertion of Kirschner wire, for guiding etc.
As shown in Figure 4, concrete using method of the present invention is: for intertrochanteric fracture, first knochenbruch 5 is resetted, bone 4 is looked for suitable some punching position, then support bar 3 is inserted in femur, punch for the oblique femoral head of supported hole 31 again and adopt Kirschner wire to locate, the through hole 16 of main nail positions through Kirschner wire and is screwed into main nail, then secondary nail 2 is squeezed into successively in the passage formed at bar-shaped trough 14 and open slot 32, this kind of fixed form can be more firm, is especially applicable to the patient with sufferers of osteoporosis face and inner cortex instability.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, will be understood by those skilled in the art that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a wing intramedullary pin, is characterized in that, described intramedullary pin comprises main nail (1) and some pairs nail (2);
Described main nail (1) comprises ailhead (11), nail bar (12) and nail tail (13), described nail bar (12) arranges some bar-shaped troughs (14), described arbitrary bar-shaped trough (14) one end open is in nail tail (13), and the other end is opened on nail bar (12) and the bottom land of this end is curved and with opening along concordant;
Described some pair nail (2) one_to_one corresponding insert in bar-shaped trough (14), and the tip (21) of secondary nail (2) at the bottom of the arcuate groove of bar-shaped trough (14) after, be distributed in nail bar (12) around in upwarping shape.
2. wing intramedullary pin according to claim 1, it is characterized in that, described intramedullary pin also comprises a support bar (3), described support bar (3) butt end arranges supported hole (31), the nail bar (12) of main nail (1) is through supported hole (31), and support bar (3) intersects in 135 ° of angles with nail bar (12).
3. wing intramedullary pin according to claim 2, is characterized in that, the hole inwall of described supported hole (31) arranges the open slot (32) corresponding with the bar-shaped trough (14) on nail bar (12).
4. wing intramedullary pin according to claim 1, is characterized in that, the opening of described bar-shaped trough (14) on nail bar (12) is 1/1 to three/5th nail pole length apart from the distance of ailhead (11).
5. wing intramedullary pin according to claim 1, is characterized in that, described bar-shaped trough (14) is semi-circular groove.
6. wing intramedullary pin according to claim 1, is characterized in that, the number of described bar-shaped trough (14) is three.
7. wing intramedullary pin according to claim 1, is characterized in that, described nail tail (13) end face arranges interior hex slot (15).
8. wing intramedullary pin according to claim 1, is characterized in that, described nail bar (12) is for cylindrical.
9. wing intramedullary pin according to claim 1, is characterized in that, described intramedullary pin axle center is arranged through hole (16).
10., according to the arbitrary described wing intramedullary pin of claim 1-9, it is characterized in that, the making material of described intramedullary pin is titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511004.0A CN105011998A (en) | 2015-08-19 | 2015-08-19 | Wing-shaped intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511004.0A CN105011998A (en) | 2015-08-19 | 2015-08-19 | Wing-shaped intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105011998A true CN105011998A (en) | 2015-11-04 |
Family
ID=54402565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511004.0A Pending CN105011998A (en) | 2015-08-19 | 2015-08-19 | Wing-shaped intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105011998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617994A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Intramedullary nail and intramedullary nail internal image acquisition system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659365Y (en) * | 2003-12-10 | 2004-12-01 | 侯庆忠 | Fixing/self locking and composite interlock internal pulp nail between tuberosity of thigh-bone |
| CN2732197Y (en) * | 2004-08-01 | 2005-10-12 | 侯庆忠 | Self-locking intramedullary nail of femur neck |
| CN201861740U (en) * | 2010-11-20 | 2011-06-15 | 唐少龙 | Novel proximal femoral intramedullary nail |
| CN201879811U (en) * | 2010-12-05 | 2011-06-29 | 明立德 | Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh |
| US8491584B1 (en) * | 2012-04-13 | 2013-07-23 | Orthopedic Designs North America, Inc. | Intramedullary nail system with tang fixation |
| CN204909612U (en) * | 2015-08-19 | 2015-12-30 | 赵旭 | Wing intramedullary nail |
-
2015
- 2015-08-19 CN CN201510511004.0A patent/CN105011998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2659365Y (en) * | 2003-12-10 | 2004-12-01 | 侯庆忠 | Fixing/self locking and composite interlock internal pulp nail between tuberosity of thigh-bone |
| CN2732197Y (en) * | 2004-08-01 | 2005-10-12 | 侯庆忠 | Self-locking intramedullary nail of femur neck |
| CN201861740U (en) * | 2010-11-20 | 2011-06-15 | 唐少龙 | Novel proximal femoral intramedullary nail |
| CN201879811U (en) * | 2010-12-05 | 2011-06-29 | 明立德 | Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh |
| US8491584B1 (en) * | 2012-04-13 | 2013-07-23 | Orthopedic Designs North America, Inc. | Intramedullary nail system with tang fixation |
| CN204909612U (en) * | 2015-08-19 | 2015-12-30 | 赵旭 | Wing intramedullary nail |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617994A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Intramedullary nail and intramedullary nail internal image acquisition system |
| CN112617994B (en) * | 2020-12-31 | 2023-05-26 | 固安博健生物技术有限公司 | Intramedullary nail and intramedullary nail internal image acquisition system |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |