CN1021627C - Straight and swing type multifunctional osteotomy saw - Google Patents
Straight and swing type multifunctional osteotomy saw Download PDFInfo
- Publication number
- CN1021627C CN1021627C CN 90101667 CN90101667A CN1021627C CN 1021627 C CN1021627 C CN 1021627C CN 90101667 CN90101667 CN 90101667 CN 90101667 A CN90101667 A CN 90101667A CN 1021627 C CN1021627 C CN 1021627C
- Authority
- CN
- China
- Prior art keywords
- saw
- osteotomy
- blade
- location fulcrum
- fulcrum shaft
- 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.)
- Expired - Fee Related
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 25
- 238000001356 surgical procedure Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 230000000399 orthopedic effect Effects 0.000 abstract 1
- 210000002303 tibia Anatomy 0.000 description 3
- 208000032170 Congenital Abnormalities Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 210000000623 ulna Anatomy 0.000 description 2
- 208000003163 Cavernous Hemangioma Diseases 0.000 description 1
- 206010013033 Diplegia Diseases 0.000 description 1
- 208000002100 Equinus Deformity Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010031252 Osteomyelitis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 210000000523 condylus medialis femoris Anatomy 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
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- Surgical Instruments (AREA)
Abstract
The invention relates to a bone cutting saw for orthopedic surgery, in particular to a bone cutting saw which is directly cut into the surgical field and directly reaches the bone surface, and the saw blade swings at high frequency and small angle according to the surgical scheme to complete various complex and high-difficulty surgeries with multiple functions.
The saw can also be used for grooving, cutting off, slicing and the like in woodworking and other non-metal operations.
Description
The present invention relates to the osteotomy saw that a kind of bone surgery is used, particularly a kind of according to operation plan, saw blade carries out altofrequency and small angle oscillation directly to incision art open country, through surface of bone, finishes the osteotomy saw of multiple function.
Board-like osteotomy saw of the prior art, the bone that can only execute the limb dividing art is from disconnected, and it is not only stupid but also slow to perform the operation.As do other operation, because of the form relation can not enter the osteotomy position, purposes is single.
Line formula osteotomy saw of the prior art, this saw is formed by braided steel wire.Can block long bone with it, but sawed-off surface of bone is irregular, easily becomes oblique section; And must carry out subperiosteally extensively peeling off to the side, just can send into line formula osteotomy saw.Big with this saw damage cartilaginous tissue, and necessary cross-section whole bone, can not keep lateral part cortical bone, it is unfavorable that the broken ends of fractured bone of wedgeshaped osteotomy is stablized.Can not repeat osteotomy well accurately, more can not utilize and beat the bone groove, get the bone piece, its purposes is limited to.
Osteotome of the prior art, though can be used to deep, beat the bone groove and get the bone piece, because of inclined-plane extruding is arranged itself, section is irregular.And since the fragility of bone, easily splitting.If sclerotin is very hard, repeat deep difficulty.Often, easily bone is smashed, caused operative failure because of malfunction.
Disc type osteotomy saw can be swung osteotomy though can rotate maybe in the prior art, and it does not enter the art open country because of the structural relation of body.In clinical, how to tear Gypsum Fibrosum open with it.
The objective of the invention is to provide a kind of multi-functional osteotomy saw, it not only can finish the function of several osteotomy saw of the prior art flexibly, quickly and accurately, also possesses highlightedly directly to incision art open country, altofrequency and small angle oscillation, can finish the osteotomy function of the high-leveled and difficult operation of various complexity.
Task of the present invention realizes by shown in the accompanying drawing: saw blades (1) is installed on the blade clamp (2).Cam (5) is connected with motor shaft (7).The U-lag that blade clamp (2) are arranged in cam (5) front.Location fulcrum hole (11) is arranged on the symmetrical center line of blade clamp (2).On the saw body location fulcrum shaft (3) is arranged.Cam (5) is eccentric with location fulcrum shaft (3).Location fulcrum shaft (3) is on the centrage of motor shaft (7).When the upper end (4) of cam (5) and the U-lag of blade clamp (2) when contacting, saw blade (1) is then being complied with location fulcrum shaft (3) to lower swing.When the lower end (10) of cam (5) and the U-lag of blade clamp (2) when contacting, saw blade (1) is then being complied with upwards swing of location fulcrum shaft (3).Cam (5) drives down at motor shaft (7), whenever rotates a circle, and cam (5) just drives the continuous anchor clamps (2) of saw blade (1) and complying with location fulcrum shaft (3) and swing up and down once.The motor high speed rotating, then saw blade (1) is synchronous with it, altofrequency, the swing of low-angle ground.Location fulcrum hole (11) is positioned on the symmetrical center line of blade clamp (2), and this hole and location fulcrum shaft (3) socket.
Saw blade (1) adopts one chip metal saw blade.Its sawtooth is little arc, and sawtooth is along the left and right arrangement of tooth body centrage, and pitch is 1.6 millimeters.The saw blade shape differs, can be according to operation needs, arbitrarily transposing.
Power of the present invention can adopt stepless variable-speed motor, and adjustable extent 4000 is changeed-15000 rev/mins, and 220 volts of alternating voltages become the dc source of 24-36 volt through rectifier transformer.Also can adopt blast, as power sources such as compressed air or nitrogen.
Of the present invention simple in structure, weight is light, and is safe and reliable, low cost of manufacture, be convenient to implement bone surgery osteotomy, slot, burrow, cut the bone piece of various forms, and very smooth from disconnected surface of bone.Especially the present invention can carry out the osteotomy of position, deep.The osteotomy of the osteotomy of the osteotomy of privileged sites, the osteotomy of high-leveled and difficult operation, orthomorphia and the prosthetic replacement of various limbs etc.So saw is multi-functional high-quality novel osteotomy saw.Can be widely used in the bone surgery of each large and medium-sized hospital.
The present invention is used for clinical example:
Acute tibia osteomyelitis, 3 years old infant.Execute focal cleaning, tibia fluting, irrigation and drainage art.In the art, with osteotomy saw of the present invention, very successfully with the whole fluting of tibia.If perform the operation with osteotome.Need to beat groove, because of the infant bone is very thin, it is one slow to be bound to, and two easy folds in a garments split, three easily broken.
Forearm flexor group cavernous hemangioma, musculus flexor contracture hands deformity, at tumor resection, after musculus flexor prolongs, still residual deformity.Make of osteotomy of the present invention saw and to scratch ulna cripetura osteotomy, respond well.If with osteotome or scroll saw osteotomy, to be cut into etc. greatly scratching ulna, it is smooth that the cross section is difficult for, and can influence surgical effect.
Femoral shortening in the paci's operation in the rotary osteotomy, with osteotomy saw of the present invention, cuts standard, and surface of bone is neat, and para-position is tight, helps healing, if use the prior art osteotomy, influences surgical effect equally.
In knee, wedge osteotomy on the condylus medialis femoris, the infantile diplegia sequela, the operation that difficulty such as talipes equinovalgus are high is all carried out disposable wedge osteotomy with osteotomy saw of the present invention, and involutory tight, it is good to reset.This be prior art can not finish.
This saw also can be used for beating groove, block in the nonmetallic materials operation such as carpenter, section etc.
Claims (5)
1, the osteotomy saw used of a kind of bone surgery, particularly saw blade (1) is directly to incision art open country, altofrequency and the osteotomy saw of small angle oscillation, this osteotomy saw has a cam (5), the U-lag that blade clamp (2) are arranged in its front, location fulcrum hole (11) is arranged on the blade clamp (2), on the saw body location fulcrum shaft (3) is arranged, and indispensable power source, it is characterized in that.
The described cam of a (5) is eccentric with location fulcrum shaft (3),
The upper end (4) of b cam (5) and the U-lag of blade clamp (2) is when contacting, and saw blade (1) is being complied with location fulcrum shaft (3) to lower swing,
The lower end (10) of c cam (5) and the U-lag of blade clamp (2) is when contacting, and saw blade (1) is being complied with upwards swing of location fulcrum shaft (3),
D location fulcrum hole (11) is positioned on the symmetrical center line of blade clamp (2), and this hole and location fulcrum shaft (3) socket.
2, osteotomy saw according to claim 1 is characterized in that saw blade (1) adopts one chip metal saw blade.
3, osteotomy saw according to claim 2 is characterized in that the sawtooth of saw blade is little arc, and sawtooth is along the left and right arrangement of tooth body centrage, and pitch is 1.6 millimeters.
4, osteotomy saw according to claim 1 is characterized in that the power source of osteotomy saw can adopt stepless variable-speed motor, and its adjustable extent 4000 is changeed-15000 rev/mins.
5, osteotomy saw according to claim 1 is characterized in that the osteotomy saw also can adopt blast, adds power sources such as compression air or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101667 CN1021627C (en) | 1990-03-28 | 1990-03-28 | Straight and swing type multifunctional osteotomy saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101667 CN1021627C (en) | 1990-03-28 | 1990-03-28 | Straight and swing type multifunctional osteotomy saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1045026A CN1045026A (en) | 1990-09-05 |
| CN1021627C true CN1021627C (en) | 1993-07-21 |
Family
ID=4877184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90101667 Expired - Fee Related CN1021627C (en) | 1990-03-28 | 1990-03-28 | Straight and swing type multifunctional osteotomy saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021627C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7497860B2 (en) | 2004-07-09 | 2009-03-03 | Stryker Corporation | Surgical sagittal saw including a handpiece and a removable blade assembly, the blade assembly including a guide bar, a blade head capable of oscillatory movement and a drive rod for actuating the blade head |
| US7704254B2 (en) | 2005-09-10 | 2010-04-27 | Stryker Corporation | Surgical sagittal saw with indexing head and toolless blade coupling assembly for actuating an oscillating tip saw blade |
| AU2016261462B2 (en) | 2015-05-12 | 2020-06-04 | Stryker European Operations Holdings Llc | Surgical sagittal blade cartridge with a reinforced guide bar |
-
1990
- 1990-03-28 CN CN 90101667 patent/CN1021627C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045026A (en) | 1990-09-05 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |