CN104605902B - Machine for chest-opening - Google Patents

Abstract

The invention discloses a kind of machine for chest-opening,Including fixed seat,Rack-plate is transversely mounted in fixed seat,The periphery suit sliding seat of rack-plate,Hand-operated gear is installed in sliding seat,The gear shaft of hand-operated gear stretches out and is connected with handler outside sliding seat,Each installation one struts arm in fixed seat and sliding seat,Every struts arm and includes outer tube,First inner chamber is opened up in outer tube,The hollow rotation seat of inner sleeve and drum-shaped is installed in first inner chamber,Second inner chamber and the 3rd inner chamber are opened up in inner sleeve,Push rod is installed in second inner chamber,Spring base is installed in the 3rd inner chamber,Guide post,Spring and push pipe,The cross section of the 3rd inner chamber and push pipe is square,Guide post connecting spring seat and push rod,The spring power downward for spring base is provided,Leading screw is installed in push pipe,Leading screw is threadedly coupled with push pipe,Hand wheel shaft is installed in hollow rotation seat,First bevel gear and second bevel gear,Hand wheel shaft is connected with first bevel gear,First bevel gear is engaged with second bevel gear.

Description

Machine for chest-opening

Technical field

The present invention relates to a kind of medicine equipment, more particularly to a kind of machine for chest-opening.

Background technology

Machine for chest-opening is the conventional apparatus that rib is strutted in performing the operation.Anesthetist or other medical workers utilize machine for chest-opening in operation By after the rib of surgery location is strutted, doctor just performs the operation to internal.But, existing machine for chest-opening is strutted on arm Pusher dog relative cannot strut arm adjustment angle, therefore, the situation for easily rib unbalance stress occur and fractureing in operation.

The content of the invention

In order to solve the problems, such as that existing the easy of machine for chest-opening presence makes patient's rib fracture, chest is opened the invention provides one kind Device.The pusher dog of the machine for chest-opening can according to the particular location relation of the rib for opening chest position adjustment angle, make pusher dog and help bone Between contact area be significantly increased, rib is more uniformly stressed so that, the situation that rib fractures by machine for chest-opening can be prevented effectively from Occur.

The technical solution adopted for the present invention to solve the technical problems is：Machine for chest-opening, including fixed seat, in fixed seat laterally Rack-plate is installed, the periphery suit sliding seat of rack-plate installs hand-operated gear in sliding seat, the gear shaft of hand-operated gear stretches out cunning Dynamic seat is outer to be connected with handler, and each installation one struts arm in fixed seat and sliding seat, and every struts arm and includes outer tube, overcoat The hollow rotation seat that inner sleeve and drum-shaped are installed in first inner chamber, first inner chamber is opened up in pipe, is opened up in second in inner sleeve Push rod is installed in chamber and the 3rd inner chamber, second inner chamber, spring base, guide post, spring and push pipe is installed, in the 3rd in the 3rd inner chamber The cross section of chamber and push pipe for square, guide post connecting spring seat and push rod, the spring power downward for spring base is provided, in push pipe Leading screw is installed, leading screw is threadedly coupled with push pipe, hand wheel shaft, first bevel gear and second bevel gear, hand are installed in hollow rotation seat Wheel shaft is connected with first bevel gear, and first bevel gear is engaged with second bevel gear, and second bevel gear is connected with leading screw, inner sleeve Rear end is provided with connecting tube, and the rear end of connecting tube is provided with the convex edge of annular, two location hooks are symmetrical arranged on hollow rotation seat；Positioning Hook coordinates with convex edge can make the synchronous axial movement with inner sleeve of hollow rotation seat, and hollow rotation seat can again turned with respect to inner sleeve It is dynamic；Hollow rotation seat outside is provided with positioning pipe, and the side of outer tube opens up chute along its length, and the side of chute is opened successively If several locating slots, positioning pipe can coordinate positioning with any locating slot, and the outer end of hand wheel shaft passes and handwheel is installed outside positioning pipe, push up The front end of bar is hinged by first axle axle with pusher dog rear portion, and the front end of inner sleeve is cut with scissors by second hinge axle with one end of connecting rod Connect, the other end of connecting rod is hinged by third hinge axle with pusher dog rear portion, the rear end installs connector of outer tube struts arm and passes through Connector is connected with sliding seat or fixed seat.The handler includes rotary head and handle, and rotary head is provided with adapter sleeve, rotates Tubular cavity is opened up in head, installation opening is opened up on rotary head, adapter sleeve and installation opening are communicated with tubular cavity respectively, tubular cavity The diameter with diameter greater than installation opening, swivel becket is installed in tubular cavity, hexagonal hole, hexagonal hole are opened up in the middle part of swivel becket Coordinate with gear shaft, the periphery of swivel becket is uniformly arranged one inter-tooth slots of composition between four moving teeth, any two adjacent moving teeth, Adapter sleeve and the inner cooperation of handle, open up in handle and positioning cylinder and the 8th reset bullet are installed in intracavity of handle, intracavity of handle Spring, the 8th back-moving spring provides the power towards swivel becket for positioning cylinder, positioning cylinder is had the trend into inter-tooth slots all the time, Positioning cylinder one end end face corresponding with swivel becket is inclined-plane, and the periphery of handle opens up annular groove, first is installed on adapter sleeve and is determined Position bolt, the first bolt coordinates with annular groove.Install and installed in slip cap, slip cap the 7th reset in the outer end of the handle Spring, installs the second bolt on slip cap, bar shaped locating slot is opened up on handle, and bar shaped locating slot is matched somebody with somebody with the second bolt Close, the outer end of slip cap opens up positioning port, and sliding seat is provided with positioning boss, and positioning boss can coordinate with positioning port.It is described fixed Circle of position post is provided with square bar, and handle is provided with square bar hole, and square bar hole coordinates with bar shaped locating slot.The connector is by locking-type plug Connected and composed with fixed cover, fixed cover is connected with sliding seat or fixed seat, locking-type plug is connected with the rear end of outer tube, fixed cover Bottom it is symmetrical open up the second location hole and the first location hole, the top of fixed cover opens up chute, chute and the first positioning Hole communicates, and the width of chute is less than the second location hole and the diameter of the first location hole；Installation cavity, installation cavity are opened up in locking-type plug Installed in interior mounting-fixing base, fixed seat and be oriented to column base, lead column and sleeve pipe, lead column is connected by being oriented to column base with fixed seat Connect, sleeve pipe is installed outside lead column, the 4th back-moving spring is installed between sleeve pipe and guiding column base, slip is opened up on the left of fixed seat Groove, right side opens up Article 2 shape hole, and level opens up through hole in lead column, and sleeve pipe bar hole, sleeve pipe bar shaped are opened up on the left of sleeve pipe Hole is communicated all the time with through hole, and button is horizontally mounted in sliding groove, and thimble and the 6th back-moving spring, thimble and the 6th are installed on button Back-moving spring is corresponding with through hole, vertical in sliding groove to install slide bar, and sliding sleeve is installed on slide bar, and bulb is installed in the side of sliding sleeve, sliding The 3rd back-moving spring of periphery installation of bar, the 3rd back-moving spring power upward for sliding sleeve is provided, bulb can be corresponding with button, sleeve pipe Side level be provided with guide pipe, guide pipe and the second bar hole coordinate, and positioning pipe is installed in guide pipe, and the right-hand member of positioning pipe is lived It is dynamic that hemispherical jacking block is installed, the first bar hole is opened up on the right side of locking-type plug, hemispherical jacking block can be slided in the first bar hole, (the first back-moving spring is installed between hemispherical jacking block and guide pipe, jacking block chamber is opened up in hemispherical jacking block, jacking block is provided with ring in chamber Shape convex edge, installs guide thimble and the 5th back-moving spring, the vertically arranged guide thimble of right-hand member of positioning pipe, positioning pipe in jacking block chamber Interior installing connecting rods, the left end of connecting rod can be corresponding with thimble, and the right-hand member of connecting rod is passed through in guide thimble, guide thimble with connecting rod as axle Two spacer pins of installation symmetrical above and below, the outer end of each spacer pin is provided with the 3rd inclined plane of positioning pipe, two spacer pins Can be spacing along coordinating with convex annular, cover body is installed on guide thimble, the length of cover body and guide thimble is interior less than convex annular edge Footpath, the right-hand member of connecting rod is connected by the 4th back-moving spring with cover body, and pull rod slot, the right-hand member of connecting rod are opened up on the side wall of guide thimble One end with two pull bars is hinged, and two other ends of pull bar correspond with two spacer pins be hinged respectively, and pull bar can be along drawing Bar groove is slided, and push pedal is installed on cover body right side, and push pedal is connected by the 5th back-moving spring with hemispherical jacking block；Install the lower end of sleeve pipe Locating dowel, the lower end of locating dowel is provided with first inclined plane on the right side, and locking-type plug lower horizontal installs main locating rod, main positioning The two ends of bar can be stretched out outside locking-type plug, and main locating rod can be relatively fixed plug and move horizontally, and open up fixed in the middle part of main locating rod Position through hole, positioning through hole coordinates with locating dowel, and the right side of positioning through hole is the second inclined plane, and the second inclined plane can be inclined with first Face coordinates, and the right part of main locating rod is provided with limit convex edge, and limit convex is provided with second back-moving spring, second along and locking-type plug between Back-moving spring provides power to the left for main locating rod, and the right-hand member of main locating rod is provided with connecting pole, and the right-hand member of connecting pole is provided with secondary fixed Position bar, connecting pole can coordinate with chute, and connecting pole can move along chute, the equal diameters of secondary locating rod and main locating rod, it is secondary calmly The diameter of the width with diameter greater than chute less than the first location hole of position bar；Push rod is installed, push rod stretches out locking-type plug on sliding sleeve Outer installation button, button is located in the 3rd inner chamber, and hollow rotation seat can touch button.The connector can relative sliding seat or solid Reservation horizontally rotates.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples

Fig. 1 is the structural representation of machine for chest-opening of the present invention；Fig. 2 is the structural representation for strutting arm of the present invention； Fig. 3 is the structural representation of the connector, is open mode shown in figure；Fig. 4 is the structural representation of the connector, figure Shown in be lock-out state；Fig. 5 is the II partial enlargement structural representations of Fig. 3；Fig. 6 is the I partial enlargement structural representations of Fig. 1 Figure；Fig. 7 is the A of Fig. 2 to mplifying structure schematic diagram；Fig. 8 is the structural representation of described handler another program.

Label in accompanying drawing：The push rod 8 of 1 outer tube, 2 inner sleeve, 3 first inner chamber, 4 second inner chamber, 5 push pipe, 6 leading screw 7 is led Bored to 9 spring base of bar, 10 spring, 11 15 first bevel gear of button 12 hollow rotation seat, 13 hand wheel shaft, 14 handwheel 16 second The limit convex of 19 chute of gear 17 positioning pipe, 18 locating slot 20 is along the gear shaft of 21 22 first inclined plane of second back-moving spring 23 The push pedal of 24 the 4th 32 jacking block chamber of the 5th back-moving spring of back-moving spring 31 of 29 pull bar 30 of the 6th back-moving spring of connector 28 33 The convex annular of 34 cover body 35 is consolidated along the push rod 43 of 36 inclined-plane, 37 spacer pin, 38 41 sliding seat of installation cavity 39U shapes 40 wire of card 42 Determine the guide pipe of 44 45 main locating rod of fixed cover, 46 fixed seat, 47 through hole, 48 first 49 second bar hole of bar hole of plug 50 The secondary connecting pole 58 second of locating rod 57 of 51 (the first back-moving spring, 52 hemispherical jacking block, 53 positioning pipe, 54 tube chamber, 55 sleeve pipe 56 The sleeve pipe bar hole 65 of 59 first location hole of inclined plane, 60 63 positioning through hole of chute 61 second location hole, 62 locating dowel 64 is slided The lead column of 66 sliding sleeve of bar, 67 thimble, 68 70 sliding groove of the 3rd back-moving spring of bulb 69,71 the 4th back-moving spring of button 72 73 The locating piece 82 of 74 80 connecting rod of guiding positioning tube chamber 76 connecting rod, 77 guide thimble, 78 pull rod slot, 79 pusher dog of column base 75 81 connects The handler 90 of 83 convex edge of adapter 84 location hook, 85 first axle axle, 86 second hinge axle, 87 third hinge axle, 88 rack-plate 89 3rd inner chamber 91 struts the positioning cylinder of 95 96 first bolt of swivel becket of arm 92 tubular cavity, 93 moving tooth, 94 rotary head 97 The convex of 98 99 second bolt of handle, 100 102 slip cap of the 7th back-moving spring of intracavity of handle 101,103 positioning port 104 The side of 105 110 square bar of bar shaped the 8th back-moving spring 107 annular groove, 108 hexagonal hole, 109 inter-tooth slots of locating slot 106 of platform 111 The installation opening of 112 fixed seat of rod aperture, 113 adapter sleeve 114.

Specific embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawings to of the invention real The technical scheme applied in example is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, Rather than whole embodiments.

In Fig. 1, machine for chest-opening of the present invention includes fixed seat 112, and rack-plate 88 is transversely mounted in fixed seat 112, The periphery suit sliding seat 41 of rack-plate 88, installs hand-operated gear in sliding seat 41, the gear shaft 23 of hand-operated gear stretches out slip Seat 41 is outer to be connected with handler 89, and each installation one struts arm 91 in fixed seat 112 and sliding seat 41.As shown in Fig. 2 every support Open arms 91 includes outer tube 1.First inner chamber 3 is opened up in outer tube 1.The hollow of inner sleeve 2 and drum-shaped is installed in first inner chamber 3 Rotation seat 12.Outer tube 1 and inner sleeve 2 constitute expansion link.Inner sleeve 2 and hollow rotation seat 12 can axially be moved along first inner chamber 3 It is dynamic, so as to strut arm lengths described in adjusting.The inner chamber 90 of second inner chamber 4 and the 3rd is opened up in inner sleeve 2.Installed in second inner chamber 4 Push rod 7, spring base 9, guide post 8, spring 10 and push pipe 5 are installed in the 3rd inner chamber 90.3rd inner chamber 90 and the cross section of push pipe 5 For square, push pipe 5 can only be moved along the axis of the 3rd inner chamber 90, it is impossible to be rotated relative to inner sleeve 2.Spring base 9 is corresponding with push pipe 5. The connecting spring of guide post 8 seat 9 and push rod 7.Spring 10 provides the power to push pipe 5 for spring base 9.Leading screw 6, silk are installed in push pipe 5 Thick stick 6 is threadedly coupled with push pipe 5.Hand wheel shaft 13, first bevel gear 15 and the are installed as shown in Fig. 1 or Fig. 6, in hollow rotation seat 12 Two bevel gears 16.Hand wheel shaft 13 is connected with first bevel gear 15, and first bevel gear 15 is engaged with second bevel gear 16, the second cone tooth Wheel 16 is connected with leading screw 6.As shown in figure 1, the rear end of inner sleeve 2 is provided with connecting tube 82.As shown in fig. 6, the rear end of connecting tube 82 It is provided with the convex edge 83 of annular.Two location hooks 84 are symmetrical arranged on hollow rotation seat 12.Location hook 84 coordinates with convex edge 83 can Make the axial movement synchronous with inner sleeve 2 of hollow rotation seat 12, hollow rotation seat 12 can again rotated relative to inner sleeve 2.Middle idle running The dynamic outside of seat 12 is provided with positioning pipe 17, as shown in fig. 7, the side of outer tube 1 opens up chute 19 along its length, chute 19 Side opens up several locating slots 18 successively.Positioning pipe 17 can coordinate positioning with any locating slot 18, so that, strut arm described in locking Length.The outer end of hand wheel shaft 13 passes the outer installation handwheel 14 of positioning pipe 17.Handwheel 14 can pass through hand wheel shaft 13, first bevel gear 15 and second bevel gear 16 drive leading screw 6 rotate.The front end of push rod 7 is hinged by first axle axle 85 with the rear portion of pusher dog 79, interior The front end of sleeve pipe 2 is hinged by second hinge axle 86 with one end of connecting rod 80, and the other end of connecting rod 80 passes through third hinge axle 87 It is hinged with the rear portion of pusher dog 79.The line of first axle axle 85, second hinge axle 86 and third hinge axle 87 is triangle.As schemed Shown in 1, the rear end installs connector 24 of outer tube 1 is strutted arm 91 and is connected with sliding seat 41 or fixed seat 112 by connector 24 Connect.

Specific behaviour's application method of machine for chest-opening described in operation is as follows：

First, the length of arm 91 is strutted according to the adjustment of patient's bodily form：Hollow rotation seat 12 is rotated by positioning pipe 17 and locating slot 18 separate, and into chute 19, pull upwardly on inner sleeve 2 by relative outer tube 1 and adjust the length for strutting arm, it Afterwards, relocked with corresponding locating slot 18 by positioning pipe 17；

2nd, handwheel 14 is rotated further by according to rib position, enables to be moved on push pipe 5 or moved down to drive the adjusting angle of pusher dog 79 Degree, being moved on push pipe 5 can overcome spring 10 to promote push rod 7, and to hold up pusher dog 79, push pipe 5 is moved down, and spring 10 can pull spring Seat 9 moves push rod 7, so that pusher dog 79 is rotated backward；Make the laminating rib as far as possible of pusher dog 79, increase contact area.

The connector can be made up of common plug and slot.But, strut arm described in quick-replaceable for convenience 91, to be overhauled and being maintained to strut arm 91, meanwhile, ensure again operation support open arms 91 must not with sliding seat 41 or Fixed seat 112 is separated, and to ensure the security of operation, therefore designs following scheme：As shown in Figure 3 and Figure 4, connector 24 is by fixing Plug 43 and fixed cover 44 are connected and composed, and fixed cover 44 is connected with rack-plate 88, and locking-type plug 43 connects with the rear end of outer tube 1 Connect.The bottom of fixed cover 44 is symmetrical to open up the second location hole 61 and the first location hole 59, and the top of fixed cover 44 opens up cunning Groove 60, chute 60 is communicated with the first location hole 59, and the width of chute 60 is straight less than the second location hole 61 and the first location hole 59 Footpath；Installation cavity 38 is opened up in locking-type plug 43, mounting-fixing base 46 in installation cavity 38, the interior installation guiding column base 74 of fixed seat 46, Lead column 73 and sleeve pipe 55, lead column 73 are connected by being oriented to column base 74 with fixed seat 46, and lead column 73 is outer to install sleeve pipe 55, set Pipe 55 can be vertically movable under the common guiding of lead column 73 and fixed seat 46.The 4th is installed between sleeve pipe 55 and guiding column base 74 Back-moving spring 72, the 4th back-moving spring 72 provides downward power for sleeve pipe 55.The left side of fixed seat 46 opens up sliding groove 70, right side The second bar hole 49 is opened up, level opens up through hole 47 in lead column 73, and the left side of sleeve pipe 55 opens up sleeve pipe bar hole 64, in sleeve pipe In 55 shift motion, sleeve pipe bar hole 64 is communicated all the time with through hole 47, and button 71, the energy of button 71 are horizontally mounted in sliding groove 70 Move horizontally, and button 71 can be vertically slidable in sleeve pipe bar hole 64.The reset bullet of thimble 67 and the 6th is installed on button 71 Spring 28, the back-moving spring 28 of thimble 67 and the 6th is corresponding with through hole 47, vertical in sliding groove 70 to install slide bar 65, is installed on slide bar 65 Bulb 68 is installed in sliding sleeve 66, the side of sliding sleeve 66, and the 3rd back-moving spring 69 is installed in the periphery of slide bar 65, and the 3rd back-moving spring 69 is Sliding sleeve 66 provides upward power, and bulb 68 can be corresponding with button 71, is moved right with the level of promoting button 71.The side of sleeve pipe 55 Level is provided with guide pipe 50, and guide pipe 50 coordinates with the second bar hole 49, and can be vertically slidable in the second bar hole 49.It is oriented to Positioning pipe 53 is installed, positioning pipe 53 can be oppositely oriented the slip of the level of pipe 50 in pipe 50.Hemisphere is installed in the right-hand member activity of positioning pipe 53 Shape jacking block 52, the right side of locking-type plug 43 opens up the first bar hole 48, and under non-locking state, hemispherical jacking block 52 is located at fixed inserting Outside first 43, in locking process, hemispherical jacking block 52 can be slided in the first bar hole 48.Hemispherical jacking block 52 and guide pipe 50 it Between install (the first back-moving spring 51.(the first back-moving spring 51 provides power to the right for hemispherical jacking block 52.As shown in figure 5, hemisphere Opens up in shape jacking block 52 and convex annular is provided with jacking block chamber 32, jacking block chamber 32 guide thimble 77 and the are installed along 35, in jacking block chamber 32 Five back-moving springs 31, the elastic force of the 6th back-moving spring 28 is more than the 5th back-moving spring 31.As shown in figure 5, the right-hand member of positioning pipe 53 Vertically arranged guide thimble 77, installing connecting rods 76 in positioning pipe 53, the left end of connecting rod 76 can be corresponding with thimble 67, the right side of connecting rod 76 Two spacer pins 37, each spacer pin are installed for axle is symmetrical above and below with connecting rod 76 in guide thimble 77 through guide thimble 77 in end 37 outer end is provided with the 3rd inclined plane 36 of positioning pipe 53, and two spacer pins 37 can coordinate spacing, prevent with convex annular along 35 Only the relative positioning pipe 53 of hemispherical jacking block 52 is moved to the left.Cover body 34, cover body 34 and guide thimble 77 are installed on guide thimble 77 Length less than convex annular along 35 internal diameter, i.e. spacer pin 37 and convex annular along 35 release it is spacing in the case of, guide thimble 77 and cover body 34 can be moved right along 35 by convex annular.The right-hand member of connecting rod 76 is connected by the 4th back-moving spring 30 with cover body 34 Connect, the 4th back-moving spring 30 can be that connecting rod 76 provides power to the left.Pull rod slot 78, connecting rod 76 are opened up on the side wall of guide thimble 77 Right-hand member be hinged with one end of two pull bars 29, two other ends of pull bar 29 correspond hinge with two spacer pins 37 respectively Connect, two spacer pins 37 can be taken in by guide thimble by pull bar 29 when connecting rod 76 overcomes the elastic force of the 4th back-moving spring 30 to move to right In 77, so that, release and limit, guide thimble 77 and cover body 34 is moved right along 35 internal diameters by convex annular.The energy of pull bar 29 Slided along pull rod slot 78, push pedal 33 is installed on the right side of cover body 34, and push pedal 33 is connected by the 5th back-moving spring 31 with hemispherical jacking block 52 Connect, the 5th back-moving spring 31 can provide reset force for cover body 34.

As shown in figure 4, locating dowel 62 is installed in the lower end of sleeve pipe 55, the lower end of locating dowel 62 is provided with first inclination on the right side Face 22, the lower horizontal of locking-type plug 43 installs main locating rod 45, and the two ends of main locating rod 45 can be stretched out outside locking-type plug 43, main fixed Position bar 45 can be relatively fixed plug 43 and move horizontally, and the middle part of main locating rod 45 opens up positioning through hole 63, positioning through hole 63 with it is fixed Position post 62 coordinates, and the right side of positioning through hole 63 is the second inclined plane 58, and the second inclined plane 58 can coordinate with the first inclined plane 22, main The right part of locating rod 45 is provided with limit convex along 20, and limit convex is provided with second back-moving spring 21 between 20 and locking-type plug 43, the Two back-moving springs 21 provide power to the left for main locating rod 45, and the right-hand member of main locating rod 45 is provided with connecting pole 57, connecting pole 57 Right-hand member is provided with secondary locating rod 56, and connecting pole 57 can coordinate with chute 60, and connecting pole 57 can be moved along chute 60, secondary locating rod 56 with The equal diameters of main locating rod 45, the diameter of the width with diameter greater than chute 60 less than the first location hole 59 of secondary locating rod 56, When main locating rod 45 inserts the second location hole 61, secondary locating rod 56 can be inserted in the first location hole 59；Secondary locating rod 56 can be with One location hole 59 coordinates, and main locating rod 45 can coordinate with the second location hole 61, so that, locking-type plug 43 and fixed cover 44 are locked It is fixed.Push rod 42 is installed, push rod 42 stretches out the outer installation button 11 of locking-type plug 43 on sliding sleeve 66.Button 11 is located at the 3rd inner chamber 90 Interior, hollow rotation seat 12 can touch button 11.If connector 24 need to be unlocked, hollow rotation seat 12 only need to be rotated, make positioning pipe 17 separate with locating slot 18, and move down shake-up button 11 along chute 19.As shown in Fig. 2 when positioning pipe 17 and bottom When locating slot 18 coordinates, hollow rotation seat 12 will not be touched to button 11.

In the 3rd inner chamber 90, having hollow rotation seat 12 only can just touch the button 11 of the connector 24, therefore, the knot Structure both can ensure that strut arm 91 was connected firmly with sliding seat 41 or fixed seat 112 in normal use, will not accidental unlocking opening, Ensure safety and stability, again can be when replacing strut arm, step unblock, simple and fast.The elastic force of the 4th back-moving spring 72 is much larger than The elastic force of second back-moving spring 21, it is ensured that when locating dowel 62 moves down reset, has enough power that main locating rod 45 can move right Reset.

The operation principle of connector 24：

As shown in figure 4, under lock-out state, because be positioned at positioning pipe 53 in through hole 47 by fixed cover 44 so that sleeve pipe 55 Cannot move down, therefore, secondary locating rod 56 can coordinate with the first location hole 59, and main locating rod 45 can coordinate with the second location hole 61, So as to locking-type plug 43 and fixed cover 44 are connected.

When lock connector 24 is solved, concrete operations are as follows：Hollow rotation seat 12 is first rotated, makes positioning pipe 17 and locating slot 18 Separate, and shake-up button 11 is moved down along chute 19, button 11 promotes sliding sleeve 66 to move down by push rod 42.Sliding sleeve 66 overcomes drive The elastic force of three back-moving springs 69 makes bulb 68 be displaced downwardly to position as shown in Figure 3, and bulb 68 is by button 71, the and of the 6th back-moving spring 28 Thimble 67 is synchronous to be promoted to the right.At the beginning of 6th back-moving spring 28 and thimble 67 are moved to right, the 6th back-moving spring 28 is compressed, thimble 67 Connecting rod 76 is moved to right in insertion positioning pipe 53, so that, connecting rod 76 makes spacer pin 37 take in guide thimble 77 by pull bar 29.When After spacer pin 37 is taken in guide thimble 77 completely, the 6th back-moving spring 28 promotes the opposing hemispherical jacking block 52 of positioning pipe 53 to move to right In insertion jacking block chamber 32, and most positioning pipe 53 is removed outside through hole 47 at last.Now, in the presence of the 4th back-moving spring 72, set The constraint that pipe 55 loses positioning pipe 53 is moved down rapidly, promotes main locating rod 45 to the right while locating dowel 62 is moved down, and it is main fixed to make Position bar 45 removes the second location hole 61, and secondary locating rod 56 removes the first location hole 59, and connecting pole 57 coordinates with chute 60, now, Fixed cover 44 and locking-type plug 43 can unlock separation.

When fixed cover 44 and locking-type plug 43 need grafting again to reset, as shown in figure 3, first connecting pole 57 is matched somebody with somebody with chute 60 Close, locking-type plug 43 is inserted in fixed cover 44.When the end of fixed cover 44 and hemispherical jacking block 52 coordinate, continue to move down Locking-type plug 43, originally fixed cover 44 by hemispherical jacking block 52 promote sleeve pipe 55 be relatively fixed on plug 43 move, work as guide pipe 50 when moving to the second 49 upper end of bar hole, and guide pipe 50 cannot be moved up, and locking-type plug 43 still needs to continue to move down insertion, this When, positioning pipe 53 is pushed in through hole 47 and compresses locking by the component to the left that fixed cover 44 is produced to dome block 52, separately On the one hand, being moved in locating dowel 62 makes main locating rod 45 be moved to left in the presence of second back-moving spring 21, until the first inclined plane 22 Untill coordinating with the second inclined plane 58, now main locating rod 45 coordinates with the second location hole 61, and secondary locating rod 56 and first is positioned Hole 59 coordinates and for fixed cover 44 and locking-type plug 43 to reconnect fixation.

The angle of pusher dog 79 is adjusted by push rod 7 and connecting rod 80, on the one hand, can be in the angle adjustment by adjusting pusher dog 79 The length for strutting arm 91, on the other hand, the unspecified angle that pusher dog 79 can be in hunting range fixedly positioning, it is ensured that pusher dog 79 Can all bear enough support forces and swung without relative outer tube 1 arbitrarily angled, for operation provides an absolute stability environment.

For convenience of medical worker hand-operated gear just can be driven to be rotated to a direction by reciprocally swinging, reduce operation difficult Degree, improves procedure efficiency, as shown in figure 8, the handler 89 includes rotary head 94 and handle 98, rotary head 94 is provided with connection Set 113.Tubular cavity 92 is opened up in rotary head 94.Installation opening 114 is opened up on rotary head 94.114 points of adapter sleeve 113 and installation opening Do not communicated with tubular cavity 92.The diameter with diameter greater than installation opening 114 of tubular cavity 92, to be installed in tubular cavity 92 Swivel becket 95, the middle part of swivel becket 95 opens up hexagonal hole 108, and hexagonal hole 108 is corresponding with installation opening 114.Hexagonal hole 108 Coordinate with gear shaft 23, so as to can be rotated with movable gear shaft 23.The periphery of swivel becket 95 is uniformly arranged four moving teeth 93, any two An inter-tooth slots 109 are constituted between adjacent moving tooth 93.Adapter sleeve 113 coordinates with the inner of handle 98.Handle 98 relative can connect The axial-rotation of female connector 113.Opened up in handle 98 and installed in intracavity of handle 100, intracavity of handle 100 reset of positioning cylinder 97 and the 8th Spring 106, the 8th back-moving spring 106 is that positioning cylinder 97 provides power towards swivel becket 95, make positioning cylinder 97 have all the time into Enter the trend of inter-tooth slots 109.One end end face corresponding with swivel becket 95 of positioning cylinder 97 is inclined-plane.The periphery of handle 98 opens up ring Shape groove 107, installs the first bolt 96 on adapter sleeve 113, the first bolt 96 coordinates with annular groove 107, makes handle 98 Cannot be moved axially with respect to adapter sleeve 113.As shown in figure 8, because the inclined-plane of positioning cylinder 97 is upward, therefore, stirred when downwards During handle 98, positioning cylinder 97 can stir swivel becket 95 and rotate by moving tooth 93, so that hand-operated gear is rotated；When dialing up hand During handle 98, positioning cylinder 97 can overcome the elastic force of the 8th back-moving spring 106 to move in the case where inclined-plane and moving tooth 93 coordinate, so that cannot Swivel becket 95 is stirred by moving tooth 93 to rotate, hand-operated gear is rotated this moment.If hand-operated gear need to be rotated backward, only hand need to be rotated Handle 98, makes the synchronous axial system 180 degree of positioning cylinder 97.It is described fixed to ensure that handle 98 drives the synchronous axial system of positioning cylinder 97 Circle of position post 97 is provided with square bar 110, and handle 98 is provided with square bar hole 111, and square bar hole 111 coordinates with bar shaped locating slot 105.

For handle 98 surprisingly swings in preventing surgical procedure, as shown in figure 1, sliding seat 41 is provided with positioning boss 104.Such as Shown in Fig. 8, the outer end of the handle 98 is installed and the 7th back-moving spring 101 is installed in slip cap 102, slip cap 102.Slip cap Second bolt 99 is installed on 102, bar shaped locating slot 105, the bolt of bar shaped locating slot 105 and second are opened up on handle 98 99 coordinate.The outer end of slip cap 102 opens up positioning port 103, and positioning boss 104 can coordinate with positioning port 103, so as to by handler 89 positioning.As shown in figure 8, the 7th back-moving spring 101 is in compressive state, handler 89 shortens, so as to positioning port 103 can with it is fixed Position boss 104 coordinates.

To further facilitate the position that adjustment struts arm 91, with rib of fitting, as shown in figure 1, the connector 24 can phase Sliding seat 41 or fixed seat 112 are horizontally rotated.

Claims (6)

1. machine for chest-opening, including fixed seat (112), is transversely mounted rack-plate (88), the periphery of rack-plate (88) in fixed seat (112) Hand-operated gear is installed, the gear shaft (23) of hand-operated gear stretches out sliding seat (41) outward in suit sliding seat (41), sliding seat (41) It is connected with handler (89), each installation one struts arm (91) in fixed seat (112) and sliding seat (41), it is characterised in that：Often Root struts arm (91) includes outer tube (1), is opened up in outer tube (1) and inner sleeve is installed in first inner chamber (3), first inner chamber (3) (2) and drum-shaped hollow rotation seat (12), opens up second inner chamber (4) and the 3rd inner chamber (90), second inner chamber in inner sleeve (2) (4) installed in and spring base (9), guide post (8), spring (10) and push pipe (5), the 3rd are installed in push rod (7), the 3rd inner chamber (90) The cross section of inner chamber (90) and push pipe (5) for square, guide post (8) connecting spring seat (9) and push rod (7), spring (10) is bullet Spring abutment (9) is provided installs leading screw (6) in downward power, push pipe (5), leading screw (6) is threadedly coupled with push pipe (5), hollow rotation seat (12) hand wheel shaft (13), first bevel gear (15) and second bevel gear (16), hand wheel shaft (13) and first bevel gear are installed in (15) connect, first bevel gear (15) is engaged with second bevel gear (16), and second bevel gear (16) is connected with leading screw (6), inner sleeve The rear end for managing (2) is provided with connecting tube (82), and the rear end of connecting tube (82) is provided with the convex edge (83) of annular, on hollow rotation seat (12) It is symmetrical arranged two location hooks (84)；Location hook (84) coordinates with convex edge (83) and can make hollow rotation seat (12) and inner sleeve (2) synchronous axial movement, can be such that hollow rotation seat (12) is rotated relative to inner sleeve (2) again；Hollow rotation seat (12) outside is provided with Positioning pipe (17), the side of outer tube (1) opens up chute (19) along its length, and the side of chute (19) opens up several successively Locating slot (18), positioning pipe (17) can coordinate positioning with any locating slot (18), and the outer end of hand wheel shaft (13) passes positioning pipe (17) handwheel (14) is installed outward, the front end of push rod (7) is hinged by first axle axle (85) with pusher dog (79) rear portion, inner sleeve (2) front end is hinged by second hinge axle (86) with one end of connecting rod (80), and the other end of connecting rod (80) passes through third hinge Axle (87) is hinged with pusher dog (79) rear portion, the rear end installs connector (24) of outer tube (1), struts arm (91) by connector (24) it is connected with sliding seat (41) or fixed seat (112).

2. machine for chest-opening according to claim 1, it is characterised in that：The handler (89) includes rotary head (94) and handle (98), rotary head (94) is provided with adapter sleeve (113), rotary head (94) and opens up tubular cavity (92), and rotary head is opened on (94) If installation opening (114), adapter sleeve (113) and installation opening (114) are communicated with tubular cavity (92) respectively, tubular cavity (92) it is straight Swivel becket (95) is installed in footpath more than the diameter of installation opening (114) in tubular cavity (92), swivel becket opens up six sides in the middle part of (95) Shape hole (108), hexagonal hole (108) coordinates with gear shaft (23), and the periphery of swivel becket (95) is uniformly arranged four moving teeth (93), An inter-tooth slots (109) is constituted between any two adjacent moving teeth (93), adapter sleeve (113) coordinates with the inner of handle (98), Opened up in handle (98) and positioning cylinder (97) and the 8th back-moving spring are installed in intracavity of handle (100), intracavity of handle (100) (106), the 8th back-moving spring (106) is positioning cylinder (97) offer towards the power of swivel becket (95), positioning cylinder (97) is begun There is the trend into inter-tooth slots (109) eventually, positioning cylinder (97) one end end face corresponding with swivel becket (95) is inclined-plane, handle (98) periphery opens up annular groove (107), and the first bolt, the first bolt (96) and ring are installed on adapter sleeve (113) Shape groove (107) coordinates.

3. machine for chest-opening according to claim 2, it is characterised in that：Slip cap (102) is installed in the outer end of the handle (98), 7th back-moving spring (101) is installed in slip cap (102), the second bolt (99), handle (98) are installed on slip cap (102) On open up bar shaped locating slot (105), bar shaped locating slot (105) coordinates with the second bolt (99), the outer end of slip cap (102) Positioning port (103) is opened up, sliding seat (41) is provided with positioning boss (104), and positioning boss (104) can match somebody with somebody with positioning port (103) Close.

4. machine for chest-opening according to claim 2, it is characterised in that：The positioning cylinder (97) is provided with square bar (110), hand Handle (98) is provided with square bar hole (111), and square bar hole (111) coordinate with bar shaped locating slot (105).

5. machine for chest-opening according to claim 1, it is characterised in that：The connector (24) is by locking-type plug (43) and fixes Set (44) is connected and composed, and fixed cover (44) is connected with sliding seat (41) or fixed seat (112), locking-type plug (43) and outer tube (1) rear end connection, the bottom of fixed cover (44) is symmetrical to open up the second location hole (61) and the first location hole (59), fixes The top for covering (44) opens up chute (60), and chute (60) is communicated with the first location hole (59), and the width of chute (60) is less than second The diameter of location hole (61) and the first location hole (59)；Peace in installation cavity (38), installation cavity (38) is opened up in locking-type plug (43) Installed in dress fixed seat (46), fixed seat (46) and be oriented to column base (74), lead column (73) and sleeve pipe (55), lead column (73) passes through It is oriented to column base (74) to be connected with fixed seat (46), lead column (73) installs outward sleeve pipe (55), sleeve pipe (55) and guiding column base (74) Between install the 4th back-moving spring (72), sliding groove (70) is opened up on the left of fixed seat (46), right side opens up Article 2 shape hole (49), level opens up through hole (47) in lead column (73), and sleeve pipe bar hole (64), sleeve pipe bar hole are opened up on the left of sleeve pipe (55) (64) communicated all the time with through hole (47), be horizontally mounted button (71) in sliding groove (70), installed on button (71) thimble (67) and 6th back-moving spring (28), thimble (67) and the 6th back-moving spring (28) are corresponding with through hole (47), and sliding groove is vertically pacified in (70) Dress slide bar (65), installs sliding sleeve (66) on slide bar (65), bulb (68), the periphery peace of slide bar (65) are installed in the side of sliding sleeve (66) The 3rd back-moving spring (69) is filled, the 3rd back-moving spring (69) provides upward power, bulb (68) energy and button for sliding sleeve (66) (71) correspondence, the side level of sleeve pipe (55) is provided with guide pipe, and guide pipe (50) coordinates with the second bar hole (49), guide pipe (50) positioning pipe (53) is installed, hemispherical jacking block (52), the right side of locking-type plug (43) are installed in the right-hand member activity of positioning pipe (53) in Side opens up the first bar hole (48), and hemispherical jacking block (52) can be slided in the first bar hole (48), hemispherical jacking block (52) with Installed in (the first back-moving spring (51), hemispherical jacking block (52) between guide pipe (50) and open up jacking block chamber (32), jacking block chamber (32) Convex annular is inside provided with along (35), guide thimble (77) and the 5th back-moving spring (31), positioning pipe (53) are installed in jacking block chamber (32) The vertically arranged guide thimble of right-hand member (77), positioning pipe (53) interior installing connecting rods (76), the left end energy and thimble of connecting rod (76) (67) correspondence, the right-hand member of connecting rod (76) is passed through in guide thimble (77), guide thimble (77) with connecting rod (76) as axle is symmetrical above and below Two spacer pins (37) are installed, the outer end of each spacer pin (37) is provided with the 3rd inclined plane (36) of positioning pipe (53), two Individual spacer pin (37) can coordinate spacing with convex annular along (35), and cover body (34) is installed on guide thimble (77), cover body (34) and lead To the internal diameter of the length less than convex annular edge (35) of sleeve pipe (77), the right-hand member of connecting rod (76) is by the 4th back-moving spring (30) and cover Body (34) is connected, and opens up pull rod slot (78) on the side wall of guide thimble (77), the right-hand member of connecting rod (76) and two pull bars (29) One end is hinged, and two other ends of pull bar (29) correspond with two spacer pins (37) be hinged respectively, and pull bar (29) can be along drawing Bar groove (78) is slided, and push pedal (33) is installed on cover body (34) right side, and push pedal (33) is by the 5th back-moving spring (31) and dome Block (52) is connected；Locating dowel (62) is installed in the lower end of sleeve pipe (55), and the lower end of locating dowel (62) is provided with first inclination on the right side Face (22), locking-type plug (43) lower horizontal installs main locating rod (45), and the two ends of main locating rod (45) can stretch out locking-type plug (43) outward, main locating rod (45) can be relatively fixed plug (43) and move horizontally, and positioning through hole is opened up in the middle part of main locating rod (45) (63), positioning through hole (63) coordinates with locating dowel (62), and the right side of positioning through hole (63) is the second inclined plane (58), and second inclines Face (58) can coordinate with the first inclined plane (22), and the right part of main locating rod (45) is provided with limit convex along (20), and limit convex is along (20) Second back-moving spring (21) is provided between locking-type plug (43), second back-moving spring (21) is provided to the left for main locating rod (45) Power, the right-hand member of main locating rod (45) is provided with connecting pole (57), and the right-hand member of connecting pole (57) is provided with secondary locating rod (56), connecting pole (57) can coordinate with chute (60), connecting pole (57) can be along chute (60) movement, secondary locating rod (56) and main locating rod (45) Equal diameters, the diameter of the width with diameter greater than chute (60) less than the first location hole (59) of secondary locating rod (56)；Sliding sleeve (66) push rod (42) is installed, push rod (42) stretches out locking-type plug (43) and installs button (11) outward, and button (11) is in the 3rd on In chamber (90), hollow rotation seat (12) can touch button (11).

6. machine for chest-opening according to claim 1, it is characterised in that：The connector (24) can relative sliding seat (41) or solid Reservation (112) horizontally rotates.