CN104173091A - Chuck structure of medical saw - Google Patents
Chuck structure of medical saw Download PDFInfo
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- CN104173091A CN104173091A CN201410412765.6A CN201410412765A CN104173091A CN 104173091 A CN104173091 A CN 104173091A CN 201410412765 A CN201410412765 A CN 201410412765A CN 104173091 A CN104173091 A CN 104173091A
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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
- A61B17/14—Surgical saws ; Accessories therefor
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Abstract
The invention discloses a chuck structure of a medical saw. The chuck structure of the medical saw is used for clamping a saw blade of the medical saw. The saw blade is provided with a handle which is matched with the chute structure. The chuck structure of the medical saw is characterized by comprising a first compaction piece, at least two second compaction pieces and a compression spring, wherein the first compaction piece is provided with a first compaction portion capable of clinging to a side surface of the handle; the second compaction pieces face the first compaction portion and can be close to or far away from the first compaction portion relatively; the first compaction portion consists of a plurality of points which are positioned in the same plane and can be adhered to the side surface of the handle simultaneously; each second compaction piece is provided with an inclined-surface-shaped or curved-surface-shaped second compaction portion which faces the first compaction portion; and by the compression spring, a side surface of the handle is adhered and compacted to the first compaction portion, and two corresponding seamed edges of the other side of the handle are respectively compacted to the second compaction portions of the corresponding second compaction pieces. By the chuck structure of the medial saw, the saw blade which is parallel to the plane of the first compaction portion can be compacted and is prevented from skewing; and the cutting quality and the cutting stability are guaranteed.
Description
Technical field
The present invention relates to a kind of cutting tool, belong to technical field of medical instruments.
Background technology
Medical saw generally includes the chuck structure of saw blade and clamping saw blade, usually used as the surgical technique and tools of bone material cutting.Wherein yaw formula saw blade (hereinafter to be referred as saw blade) is common a kind of, comprises bar shaped, sheet noumenon, in one end of body length direction, forms sawtooth portion, and the other end forms shank.The central authorities of shank broad ways are provided with through hole and get through along its length through hole to the cannelure of shank termination.Chuck structure generally includes and coordinates the saw blade seat of pegging graft with saw blade shank, and saw blade seat seat intracavity is provided with the pin coordinating with through hole, for locating saw blade shank.For example publication number is US8,100, the disclosed a kind of chuck structure of patent documentation of 912 B2, as shown in Figure 1-2, it promotes flat-sale 240 by spring and compresses saw blade 32 to saw blade seat 156 intracavity, concrete, flat-sale 240 is located in the through hole of saw blade 32, under the promotion of spring, two seamed edges that promote saw blade 32 arrive on two inclined-planes 162 of saw blade seat 156 grooves, thereby make saw blade 32 fixing and location in saw blade seat 156 grooves.But when saw blade is installed, be difficult to guarantee that saw blade keeps vertical with flat-sale axis in saw blade seat, very large may be that saw blade is crooked is positioned in saw blade seat, and once saw blade is crooked, because of flat-sale axis and swinging axle coaxial, can cause saw blade and swinging axle out of plumb, cause poor, the unsettled problem of cut quality.
Summary of the invention
A kind of chuck structure of medical saw, for clamping the saw blade of medical saw, described saw blade has a shank coordinating with chuck structure, it is characterized in that, comprise first compressing member with the first compressed part that can be close to described shank side, and towards described the first compressed part setting, can be relatively near and away from least two the second compressing members of described the first compressed part, described the first compressed part by a plurality of in same plane and can form with the point of described shank side laminating simultaneously, described the second compressing member has inclined plane shape or curved surface shape the second compressed part arranging towards the first compressed part, space between the first compressing member and whole the second compressing member integral body is for accommodating described shank, described chuck structure also comprises and can be fitted in a side of shank and be pressed on described the first compressed part, the correspondence of opposite side two seamed edges are pressed on respectively to the Compress Spring in the second compressed part of corresponding the second compressing member simultaneously.
Preferably, while being provided with through hole with the contact site of the first compressed part on described saw blade, the region area that in the first compressed part, whole described points enclose is more than or equal to the area that described through hole peritreme encloses.
Preferably, described medical saw comprises a mount pad of propclip header structure, described chuck structure also comprises two retaining walls that lay respectively at described the first compressing member two ends and extend to the second compressing member perpendicular to the first compressed part place plane, and described retaining wall is fixed with respect to the mount pad of described medical saw.
Preferably, described chuck structure, also comprise a block top-pressure part, when described the second compressed part is with respect to mount pad fixedly time, described top-pressure part is arranged on the first compressing member with respect to the outside of the second compressing member, top-pressure part can with the direction that tilts with respect to the first compressed part place plane near and away from the second compressed part, described Compress Spring promotes top-pressure part and perpendicular to the first compressed part place in-plane, the first compressed part is being pressed to the second compressing member top to be parallel to the direction of the first compressed part place plane; When described the first compressed part is with respect to mount pad fixedly time, described top-pressure part is arranged on the second compressing member with respect to the outside of the first compressing member, top-pressure part can with the direction that tilts with respect to the first compressed part place plane near and away from the first compressed part, described Compress Spring promotes top-pressure part and perpendicular to the first compressed part place in-plane, the second compressing member is being pressed to the first compressed part top to be parallel to the direction of the first compressed part place plane.
Preferably, the direction that described top-pressure part tilts to move and the angle angle of the first compressed part place in-plane are 10-15 °.
Preferably, described retaining wall is provided with the bar shaped pilot hole of length direction and described the first compressed part place plane holder acute angle, and the two ends of described top-pressure part are respectively equipped with and can be embedded the guide moving along pilot hole length direction in described pilot hole.
Preferably, described top-pressure part is provided with jack, and described guide is plugged in described jack and stretches into pilot hole.
Preferably, when described top-pressure part is arranged on the first compressing member with respect to the outside of the second compressing member, top-pressure part and the first compressing member are connected.
Preferably, described chuck structure also comprises the lamellar that is installed between two retaining walls or tabular locating part, and described locating part is provided with at least two spacing holes, accommodates respectively described the second compressing member.
Preferably, the inner side of described retaining wall is provided with the gathering sill that extends, communicates and coordinate with described the second compressing member with described spacing hole perpendicular to the first compressed part place plane.
Preferably, whole the second compressing member axial symmetry arrange.
Preferably, at least four the second compressing member axial symmetry arrange, and the second compressing member is the spherical shape that can rotate around self centre of sphere.
Preferably, described top-pressure part is provided with stopper slot, and one end of described Compress Spring is fixed with respect to described mount pad, and the other end stretches into stopper slot, directly or indirectly compresses stopper slot bottom land.
Preferably, described stopper slot passes to guide, described guide is offered guide groove towards a side of stopper slot, with stopper slot bottom common formation stopper slot bottom land, in stopper slot, be provided with the spacing ball coordinating with described guide groove, the corresponding end of described Compress Spring is pressed on top-pressure part stopper slot bottom land by the described spacing ball of conflicting.
The beneficial effect that the present invention reaches:
1. the chuck structure of the medical saw of the present invention, the cooperation of the first compressed part by multiple spot in same plane and inclined plane shape or curved the second compressed part, can be fitted and be pressed on the first compressed part in one side of the shank of saw blade, the correspondence of opposite side two seamed edges are pressed on respectively in the second compressed part of corresponding the second compressing member simultaneously, make saw blade be parallel to the first compressed part place plane compacted, avoid crooked, be conducive to guarantee cut quality and cutting stability, and be applicable to the saw blade shank of different-thickness.
2. being fixedly installed of two retaining walls, at least can carry out saw blade shank spacingly at width, also can further to the first compressing member, the second compressing member and top-pressure part, play position-limiting action, improves and clamps effect.
3. arrange can be at a slant close, away from the top-pressure part of the first compressing member or the second compressing member, can be parallel to the first compressed part place in-plane Compress Spring is set, become and to be parallel to the compression that thrust that the thrust of the first compressed part place in-plane is vertical the first compressed part place in-plane promotes top-pressure part and realizes first, second compressing member, thereby save the space perpendicular to the first compressed part place in-plane, make chuck structure compacter.
4. the direction that top-pressure part tilts to move and the angle angle of the first compressed part place in-plane are 10-15 °, and what Compress Spring was more stable with top-pressure part coordinates, and saw blade is applied to enough thrusts simultaneously.
5. the pilot hole of inclination is set on retaining wall, thus can make top-pressure part guide be embedded therein the stable motion track of controlling top-pressure part.
6. top-pressure part and guide are set to the form of split, easy disassembly chuck structure, renewal part.
7. when top-pressure part is arranged on outside the first compressing member, be connected with the first compressing member, top-pressure part move synchronous drive the first compressing member near and away from the second compressing member, while making saw blade shank insert between first, second compressing member, can press with friction, promote the first compressing member and top-pressure part away from the second compressing member voluntarily by the top with the first compressed part, thereby obtaining suitable space inserts smoothly, while therefore packing saw blade into, can realize one-handed performance, and assist to install without forcing in addition top-pressure part.
8. fixing locating part is set, can limits by spacing hole the position of the second compressing member, thereby guarantee position and inclination or the degree of crook of the second compressed part, stablize impaction state.
9. the inner side of retaining wall arranges gathering sill, can coordinate spacing hole better the second compressing member to be carried out to spacing or guiding, when its near and can keep during away from the first compressed part stablizing, not rocking.
10. whole the second compressing member axial symmetry arrange, can make the second compressing member in axis of symmetry both sides the compression balance to saw blade shank, the further stable compression to saw blade.Especially four the second compressing member axial symmetry arrange, and take into account the assurance to thrust and balance, and the saving of part.And if the second compressing member is rotating ball; on the one hand; when saw blade be initially in askew status by the process of the first compressed part extruding in; the seamed edge of saw blade is puted forth effort on rotating the second compressing member surface; saw blade is more easily adjusted to be parallel to the state of the first compressed part place plane, and the second compressing member can keep the stable compression to shank with same curved surface all the time, also can reduce on the other hand the friction of the second compressing member and saw blade; can better protect saw blade, reduce wearing and tearing.
On 11. top-pressure parts, stopper slot is set, the free end of Compress Spring stretches into stopper slot and can obtain to a certain extent spacing, makes its promotion to top-pressure part more stable.
12. in the situation that controlling chuck structure length, and in order to extend stopper slot length, further constant compression spring is flexible, stopper slot can be passed to guide.Now, further, spacing ball can be set in stopper slot, the compressing of constant compression spring free end and stopper slot bottom land.In addition, offer guide groove on guide, guide groove is coordinated with spacing ball, top-pressure part is more smooth and easy along moving of pilot hole direction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that existing chuck structure coordinates with saw blade;
Fig. 2 is the 28-28 cutaway view of Fig. 1;
Fig. 3 is the medical saw with the embodiment of the present invention 1 chuck structure;
Fig. 4 is the side-looking enlarged drawing of Fig. 3 chuck structure;
Fig. 5 is the assembling schematic diagram of embodiment 1 chuck structure and saw blade;
Fig. 6 is the local enlarged diagram of Fig. 5;
Fig. 7 is the embodiment 1 chuck structure side view cutaway drawing of saw blade in compacted state;
Fig. 8 is the side view cutaway drawing of Fig. 7;
Fig. 9 is the C-C cutaway view of Fig. 7;
Figure 10 is the B-B cutaway view of Fig. 7;
Figure 11 is the A-A cutaway view of Figure 10;
Figure 12 is the embodiment 1 chuck structure side view cutaway drawing of saw blade in releasing orientation;
Figure 13 is the cutaway view of Figure 12;
Figure 14 is the saw blade seat schematic diagram of embodiment 2;
Figure 15 is the A-A cutaway view of Figure 14;
Figure 16 is the saw blade seat schematic diagram of embodiment 3;
Figure 17 is the A-A cutaway view of Figure 16;
Figure 18 is the saw blade seat schematic diagram of embodiment 4;
Figure 19 is the embodiment 5 chuck structure side view cutaway drawings of saw blade in compacted state;
Figure 20 is the B-B cutaway view of Figure 19;
Figure 21 is the A-A cutaway view of Figure 20;
Figure 22 is the embodiment 5 chuck structure side view cutaway drawings of saw blade in releasing orientation;
Figure 23 is the cutaway view of Figure 22;
Figure 24 is saw blade seat schematic diagram in embodiment 5;
Figure 25 is top-pressure part schematic diagram in embodiment 5;
Wherein: 240, flat-sale, 32, saw blade, 156, saw blade seat, 162, inclined-plane;
1, saw blade, 12, shank, 122, side, 124, seamed edge, 126, through hole, 128, cannelure, 2, lower plate, 22, through hole, 24, upper surface, 242, slope, 34, locking pin, 36, mount pad, 4, upper plate, 42, upper surface, 44, spacing hole, 46, long waist shaped hole, 52, place kick, 54, locating piece, 542, inclined-plane, 6, side plate, 62, First, 64, second, 642, pilot hole, 66, gathering sill, 72, briquetting, 722, top pressure surface, 723, lower surface, 724, jack, 725, jack, 726, stopper slot, 728, side, 729, upper surface, 74, inserted block, 742, guide groove, 76, latch, 78, assisted parts, 782, annular end, 8, end plate, 92, Compress Spring, 94, spacing ball, 96, backing pin.
tool part embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
Embodiment 1
As shown in Fig. 3-13, the chuck structure of medical saw, for clamping the saw blade 1 of medical saw, wherein saw blade 1 has a shank coordinating with chuck structure 12, shank 12 is provided with through hole 126 and gets through through hole 126 to the cannelure 128 of shank 12 outer ends, and cannelure 128 width are less than through hole 126 diameters.Chuck structure comprises first compressing member with the first compressed part that can be close to shank 12 sides, and towards the first compressed part setting, can be relatively near and away from two of the first compressed part, ranked second compressing member.The first compressed part is specially the plane that can fit with shank 12 sides, and the second compressing member has curved surface shape the second compressed part arranging towards the first compressed part, and the space between the first compressing member and whole the second compressing member integral body is for accommodating shank 12.Chuck structure also comprises can fit a side 122 of shank 12 and be pressed on the first compressed part, the correspondence of opposite side two seamed edges 124 is pressed on respectively to corresponding one Compress Spring 92 ranked second in the second compressed part of compressing member simultaneously.
Concrete, chuck structure comprises saw blade seat.Saw blade seat comprises lower plate 2 and the upper plate 4 that is respectively tabular and is arranged in parallel, and is fixedly arranged on lower plate 2 two ends, and the side plate 6 of upper plate 4 is extended and protruded to plate 4 directions vertically upward respectively.Lower plate 2 is as described the first compressing member, through hole 22 is offered at middle part, holding locking pin 34 tops of being located at saw blade seat below stretches into, locking pin 34 protrudes from lower plate 2 upper surfaces 24 and arranges, projecting height is less than saw blade 1 shank 12 thickness, and through hole 126 adaptations of protuberance and saw blade 1 shank 12, but size is greater than saw blade 1 cannelure 128 width.Locking pin 34 is specifically arranged on a mount pad 36, and saw blade seat is also fixing with respect to mount pad 36 simultaneously, and mount pad 36, as the support of saw blade seat, can adopt the structure that the industry is general.The upper surface 24 of lower plate 2 is as described the first compressed part, and therefore, the first compressed part is also fixing with respect to mount pad 36, and locking pin 34 axis arrange perpendicular to upper surface 24.In the present embodiment, owing to adopting the first plane compressed part, can guarantee and contact area that 12 of shanks are larger, further improve stability.Concrete, upper surface 24 covers whole side 122, optimal stability with the contact area of shank 12 sides 122.One end of lower plate 2 also vertically arranges the end plate 8 that connects upper plate 4 and biside plate 6, thereby one end of the cavity that holds saw blade 1 shank 12 forming between sealing upper plate 4 and lower plate 2 exports, and at the other end, forms the insert port of saw blade 1 shank 12.Lower plate 2 is downward-sloping near upper surface 24 one end of insert port, forms slope 242, is convenient to the insertion of saw blade 1.Side plate 6 comprises the First 62 that connects lower plate 2 and upper plate 4 as retaining wall, and protrudes from second 64 of upper plate 4, and First 62 thickness are greater than second 64.Distance between two Firsts 62 just can accommodating saw blade 1 shank 12.Upper plate 4, as described locating part, is greater than shank 12 thickness with the vertical dimension of lower plate 2, and upper surface 42 is parallel with self lower surface and lower plate 2 upper surfaces 24.The two ends of upper plate 4 are respectively equipped with a row along spacing hole 44, two row's spacing hole 44 axial symmetry settings of saw blade 1 direction of insertion, two spacing holes 44 of every row.Accommodating second compressing member in each spacing hole 44, place kick 52, the second compressed part that the second compressing member is specially spherical shape are curved surface shape, steel ball for example, spacing hole 44 is shaped as the circle matching with place kick 52.Place kick 52 is rotatable in spacing hole 44; when saw blade 1 is in acock by the process of the first compressed part extruding; the seamed edge 124 of saw blade 1 is puted forth effort on rotating place kick 52 surfaces; make saw blade 1 more easily adjust to the state that is parallel to upper surface 24; and place kick 52 can keep the stable compression to shank 12 with same curved surface all the time; also can reduce on the other hand the friction of the second compressing member and saw blade 1, can better protect saw blade 1, reduce wearing and tearing.As long as the position of place kick 52 is set in addition to saw blade 1 pressure balance, can saves on the whole the second compressing member material.In the present embodiment, spacing hole 44 is through hole, so place kick 52 can be therein along moving perpendicular to upper surface 24 directions.More specifically, it is also the gathering sill 66 that upper surface 24 extends and communicates with spacing hole 44 that side plate 6 Firsts 62 and second 's 64 inner side is respectively equipped with perpendicular to the first compressed part place plane, gathering sill 66 shapes match with place kick 52 profiles, so place kick 52 can be stable to two side portions, stretches out spacing hole 44 respectively and move along corresponding gathering sill 66.
In saw blade seat, between 6 second 64 of the tops of upper plate 4, biside plate, be provided with the briquetting 72 as top-pressure part.Briquetting 72 has can push up the top pressure surface 722 of pressing place kick 52 to compress lower plate 2 upper surfaces 24, briquetting 72 can with respect to upper surface 24 at a slant near and away from, so Compress Spring 92 promotes briquetting 72 and can place kick 52 pressed to the first compressed part top perpendicular to upper surface 24 directions to be parallel to the direction of upper surface 24.Wherein briquetting 72 tilts mobile angle [alpha] preferably at 10-15 ° with respect to upper surface 24, and especially 12 °, what make that Compress Spring 92 and briquetting 72 can be more stable coordinates, and saw blade 1 is applied to enough thrusts simultaneously.Concrete, 6 second 64 of side plates are provided with the bar shaped pilot hole 642 at length direction and upper plate 4 upper surface 42 folder α angles, and the two ends of briquetting 72 are respectively equipped with and can be embedded the guide that drives briquetting 72 to move along pilot hole 642 length directions in pilot holes 642.Guide is specially the inserted block 74 that adapts, is shorter in length than pilot hole 642 with pilot hole 642 shapes, and its advantage is that quantity is single, and the length in guide direction is longer, and guiding is stable.And pilot hole 642 is specifically as follows opening counterbore inwardly, can be also through hole, as long as can play guide effect to the motion of briquetting 72.More specifically, inserted block 74 can be split type demountable structure with briquetting 72.The jack 724 that is parallel to pilot hole 642 directions is set on briquetting 72, and inserted block 74 is plugged in jack 724 and stretches into pilot hole 642, thus easy disassembly chuck structure, renewal part.
One end of Compress Spring 92 is fixed on end plate 8, and the other end directly or indirectly compresses briquetting 72.Concrete, briquetting 72 is provided with the stopper slot 726 that axis is parallel to top pressure surface 722 towards one end of end plate 8, and the respective end of Compress Spring 92 stretches into stopper slot 726, is pressed on stopper slot 726 bottom lands.More specifically, stopper slot 726 passes to jack 724, inserted block 74 is offered guide groove 742 towards a side of stopper slot 726, jointly form stopper slot 726 bottom lands with stopper slot 726 bottoms, in stopper slot 726, be provided with the spacing ball 94 coordinating with guide groove 742, the corresponding end of Compress Spring 92 is pressed on the bottom land of briquetting 72 stopper slots 726 by conflict spacing ball 94.Therefore, Compress Spring 92 gives inserted block 74 and briquetting 72 pressure by spacing ball 94, makes briquetting 72 tops press place kick 52.Wherein, spacing ball 94 can be also steel ball.
Briquetting 72 is specially wedge shape bulk, and the side 728 back to top pressure surface 722 is obliquely installed with respect to top pressure surface 722, thereby form convenient briquetting 72 tops that promote of the gradient, presses Compress Spring 92 to unclamp saw blade 1.Although in the present embodiment, the convenient pushing of shape by design briquetting 72, the invention is not restricted to this structure.Inserted block 74 also can be set and stretch out pilot hole 642, thereby by stirring inserted block 74, move the position of briquetting 72.
In saw blade seat, be also provided with in addition two backing pins 96, saw blade 1 shank 12 front ends are positioned.
Introduce the using method of the present embodiment chuck structure below.When initial, Compress Spring 92 is pressed briquetting 72 by spacing ball 94 tops, makes briquetting 72 along pilot hole 642, move to the upper surface 42 that is resisted against upper plate 4, and in this process, top pressure surface 722 four place kick 52 of contact of briquetting 72 are also pressed on the first compressed part by place kick 52.During use, first briquetting 72 is promoted to end plate 8 one sides, Compress Spring 92 is further compressed 12-13 position shown in figure, now the top pressure surface 722 of briquetting 72 leaves upper plate 4 upper surfaces 42, loosen the pressure to place kick 52, thereby the shank of saw blade 1 12 can be inserted to cavity from insert port one end of saw blade seat, because shank 12 cannelures 128 cannot pass through locking pin 34 protuberances, while therefore inserting, along being close to upper plate 4 lower surfaces, move, from locking pin 34 tops, pass through, in this process, contact place kick 52, and place kick 52 is pressed to briquetting 72 direction tops, the whole shank 12 of last saw blade 1 enters cavity, simultaneously, through hole 126 is positioned at directly over locking pin 34 just, now unclamp briquetting 72, under the effect of Compress Spring 92, place kick 52 is pressed on shank 12 on the upper surface 24 that the first compressed part is lower plate 2, simultaneously, shank 12 through holes 126 are just in time enclosed within the protuberance that locking pin 34 stretches out lower plate 2, obtain spacing, the curved surface of now place kick 52 also compresses correspondence two seamed edges 124 of location shank 12, as shown in Fig. 7-11.During saw blade 1 to be removed, equally briquetting 72 is promoted to end plate 8 one sides, the top pressure surface 722 of briquetting 72 leaves upper plate 4 upper surfaces 42, loosen the pressure to place kick 52, thereby unclamp saw blade 1, now can be by saw blade 1 to upper plate 4 backups, make locking pin 34, thereby take out.Finally decontrol briquetting 72, briquetting 72 is pushed back original state again under the effect of Compress Spring 92.
Embodiment 2
As shown in Fig. 3-15, the chuck structure of medical saw, is with the difference of embodiment 1: in saw blade seat, only rely on side plate 6, place kick 52 and locking pin 34 location, 96 pairs of saw blades of backing pin, 1 shank 12 front ends are not set and position.
Embodiment 3
As shown in Fig. 3-13,16, the chuck structure of medical saw, is with the difference of embodiment 1: be provided with two the second compressing members, and the second compressing member has inclined plane shape the second compressed part.
Concrete, the second compressing member is that rectangular strip locating piece 54, one side chamferings form the inclined-plane 542 that tilts with respect to the first compressed part place plane as the second compressed part.Spacing hole 44 shapes are the rectangle for matching with locating piece 54 also.Square locating piece 54 is that with respect to the advantage of spherical locating piece 54 with the contact surface of spacing hole 44 and side plate 6 be plane, mobile more stable, therefore can not establish gathering sill 66, and in assembling process, is not easy to roll and lose.The second compressing member is that the advantage of strip is to save the second compressing member quantity, can guarantee again the stability that saw blade 1 top is pressed simultaneously.
Embodiment 4
As shown in Fig. 3-13,18, the chuck structure of medical saw, is with the difference of embodiment 1: guide is specially two latches 76, also offers two jacks 725 for plugging latch 76 on briquetting 72 simultaneously.
Latch 76 and briquetting 72 be split type demountable structure.On briquetting 72, the position line setting of two jacks 725 is parallel to pilot hole 642 directions, and two jack 725 spacings are less than pilot hole 642 length.Latch 76 is plugged in jack 725 and stretches into pilot hole 642, thus easy disassembly chuck structure, renewal part.Latch 76 is to save material with respect to the advantage of inserted block 74, easily obtains, and the jack 725 of briquetting 72 is more easily processing also.Now in the stopper slot 726 of briquetting 72 without spacing ball 94 is set, Compress Spring 92 free ends are directly pressed on stopper slot 726 bottom lands, assemble also more convenient.
Embodiment 5
As shown in Fig. 3-13,19-25, the chuck structure of medical saw, is with the difference of embodiment 1:
Lower plate 2 is as locating part, and the two ends of lower plate 2 arrange respectively row's spacing hole 44, two row's spacing hole 44 axial symmetry settings, two spacing holes 44 of every row, and place kick 52 is housed in spacing hole 44.In the present embodiment, spacing hole 44 is counterbore, so place kick 52 is limited in wherein only rotatable.The present embodiment also regioselective ball 52 as the second compressing member of spherical shape, thereby the second compressing member can remain a curved surface and form the second compressed part towards the first compressed part in spacing hole 44, although i.e. place kick 52 may be rotated, the second compressed part is fixed in fact with respect to mount pad 36.
Briquetting 72 is fixed a circular tube shaped assisted parts 78 as the first compressing member towards one end of upper plate 4, a chamfer of assisted parts 78 forms wire annular end 782, and annular end 782 each points, in same plane, form the first compressed part.And the diameter of annular end 782 is greater than through hole 126 diameters, the region area that each point encloses is more than or equal to the area that through hole 126 peritremes enclose, and therefore can stablize and compress saw blade 1 shank 12.Briquetting 72 can with the direction that tilts with respect to annular end 782 place planes near and away from the second compressed part, Compress Spring 92 promotes briquetting 72 to be parallel to the direction of annular end 782 place planes, perpendicular to annular end 782 place in-planes, by briquetting 72, is driving the first compressed part to press to the second compressing member top.Wherein, the direction that briquetting 72 tilts to move and the angle angle of annular end 782 place in-planes be preferred 10-15 ° still, especially 12 °.
Upper plate 4 middle parts are also provided with and hold the first compressing member therein along long waist shaped hole 46 close and that move away from end plate 8 directions.
Briquetting 72 is specially wedge shape bulk, and lower surface 723 is parallel to upper plate 4 upper surfaces 42, and upper surface 729 is obliquely installed with respect to lower surface 723, thereby form convenient briquetting 72 tops that promote of the gradient, presses Compress Spring 92 to unclamp saw blade 1.
The chuck structure of the present embodiment in use, without manually briquetting 72 being promoted to end plate 8 one sides, but directly inserts cavity by the shank of saw blade 1 12 from insert port one end of saw blade seat.When shank 12 is close to upper plate 4 lower surfaces and is moved, can push up first compressing member of pressing briquetting 72 lower ends, now because the first compressing member and briquetting 72 are connected, thereby therefore can automatically promote briquetting 72 to end plate 8 one lateral movements away from shank 12, make shank 12 can insert saw blade seat completely, the first compressing member pushes up conversely and presses saw blade 1 shank 12 in the second compressed part again under Compress Spring 92 effects simultaneously, thereby realizes clamping.During clamping, one side 122 of shank 12 is fitted in the first compressed part, the correspondence of opposite side two seamed edges 124 is pressed on respectively to corresponding one simultaneously and ranked second in the second compressed part of compressing member.
It should be noted that, in above-described embodiment 1-4, the first compressed part is that the upper surface 24 of upper plate 2 is plane, in embodiment 5, the first compressed part is that annular end 782 is wire, but the present invention is as long as the first compressed part is comprised of a plurality of points in same plane, being not limited to plane and plane interior lines shape, for example, can also be the dot matrix in same plane.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (10)
1. the chuck structure of a medical saw, for clamping the saw blade of medical saw, described saw blade has a shank coordinating with chuck structure, it is characterized in that, comprise first compressing member with the first compressed part that can be close to described shank side, and towards described the first compressed part setting, can be relatively near and away from least two the second compressing members of described the first compressed part, described the first compressed part by a plurality of in same plane and can form with the point of described shank side laminating simultaneously, described the second compressing member has inclined plane shape or curved surface shape the second compressed part arranging towards the first compressed part, space between the first compressing member and whole the second compressing member integral body is for accommodating described shank, described chuck structure also comprises and can be fitted in a side of shank and be pressed on described the first compressed part, the correspondence of opposite side two seamed edges are pressed on respectively to the Compress Spring in the second compressed part of corresponding the second compressing member simultaneously.
2. the chuck structure of a kind of medical saw according to claim 1, it is characterized in that, described medical saw comprises a mount pad of propclip header structure, described chuck structure also comprises two retaining walls that lay respectively at described the first compressing member two ends and extend to the second compressing member perpendicular to the first compressed part place plane, and described retaining wall is fixed with respect to the mount pad of described medical saw.
3. the chuck structure of a kind of medical saw according to claim 2, it is characterized in that, also comprise a block top-pressure part, when described the second compressed part is with respect to mount pad fixedly time, described top-pressure part is arranged on the first compressing member with respect to the outside of the second compressing member, top-pressure part can with the direction that tilts with respect to the first compressed part place plane near and away from the second compressed part, described Compress Spring promotes top-pressure part and perpendicular to the first compressed part place in-plane, the first compressed part is being pressed to the second compressing member top to be parallel to the direction of the first compressed part place plane; When described the first compressed part is with respect to mount pad fixedly time, described top-pressure part is arranged on the second compressing member with respect to the outside of the first compressing member, top-pressure part can with the direction that tilts with respect to the first compressed part place plane near and away from the first compressed part, described Compress Spring promotes top-pressure part and perpendicular to the first compressed part place in-plane, the second compressing member is being pressed to the first compressed part top to be parallel to the direction of the first compressed part place plane.
4. the chuck structure of a kind of medical saw according to claim 3, is characterized in that, the direction that described top-pressure part tilts to move and the angle angle of the first compressed part place in-plane are 10-15 °.
5. the chuck structure of a kind of medical saw according to claim 3, it is characterized in that, described retaining wall is provided with the bar shaped pilot hole of length direction and described the first compressed part place plane holder acute angle, and the two ends of described top-pressure part are respectively equipped with and can be embedded the guide moving along pilot hole length direction in described pilot hole.
6. the chuck structure of a kind of medical saw according to claim 5, is characterized in that, described top-pressure part is provided with jack, and described guide is plugged in described jack and stretches into pilot hole.
7. the chuck structure of a kind of medical saw according to claim 3, is characterized in that, when described top-pressure part is arranged on the first compressing member with respect to the outside of the second compressing member, top-pressure part and the first compressing member are connected.
8. the chuck structure of a kind of medical saw according to claim 3, is characterized in that, also comprises the lamellar that is installed between two retaining walls or tabular locating part, and described locating part is provided with at least two spacing holes, accommodates respectively described the second compressing member.
9. the chuck structure of a kind of medical saw according to claim 1, is characterized in that, whole the second compressing member axial symmetry arrange.
10. the chuck structure of a kind of medical saw according to claim 9, is characterized in that, at least four the second compressing member axial symmetry arrange, and the second compressing member is the spherical shape that can rotate around self centre of sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412765.6A CN104173091B (en) | 2014-08-21 | 2014-08-21 | The chuck structure of medical saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412765.6A CN104173091B (en) | 2014-08-21 | 2014-08-21 | The chuck structure of medical saw |
Publications (2)
| Publication Number | Publication Date |
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| CN104173091A true CN104173091A (en) | 2014-12-03 |
| CN104173091B CN104173091B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410412765.6A Expired - Fee Related CN104173091B (en) | 2014-08-21 | 2014-08-21 | The chuck structure of medical saw |
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| CN (1) | CN104173091B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175472A (en) * | 2018-02-12 | 2018-06-19 | 苏州益诺斯医疗科技有限公司 | A kind of miniature goose saw |
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| CN203988221U (en) * | 2014-08-21 | 2014-12-10 | 舒捷医疗科技（苏州）有限公司 | The chuck structure of medical saw |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0125101A1 (en) * | 1983-05-06 | 1984-11-14 | Minnesota Mining And Manufacturing Company | Orbital saw device |
| US5439472A (en) * | 1991-01-11 | 1995-08-08 | Stryker Corporation | Surgical handpiece chuck and blade |
| US6113618A (en) * | 1999-01-13 | 2000-09-05 | Stryker Corporation | Surgical saw with spring-loaded, low-noise cutting blade |
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| CN101357407A (en) * | 2007-08-01 | 2009-02-04 | 苏州宝时得电动工具有限公司 | Saw blade clamping device |
| CN102240220A (en) * | 2010-05-12 | 2011-11-16 | 上海信晟光电技术有限公司 | Swing saw blade locking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175472A (en) * | 2018-02-12 | 2018-06-19 | 苏州益诺斯医疗科技有限公司 | A kind of miniature goose saw |
| CN108175472B (en) * | 2018-02-12 | 2024-03-15 | 上海博进医疗器械有限公司 | Miniature pendulum saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104173091B (en) | 2016-08-24 |
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