CN209236567U - Femtosecond laser ophthalmology operation for myopia mechanical chuck - Google Patents

Abstract

The utility model discloses femtosecond laser ophthalmology operation for myopia mechanical chucks, including headstock, the driving device of the clamp assemblies and driving clamp assemblies that are mounted on headstock, the clamp assemblies include fixed clamping arm and active grasping arm, the fixed clamping arm is fixed on the side of headstock upper surface, the bottom of the active grasping arm and headstock are hinged, the driving device is connect with active grasping arm, and articulated shaft axis of the active grasping arm around hinged place is driven to rotate, so that the clamping face contact on clamping face and fixed clamping arm on active grasping arm or the clamping face on active grasping arm are far from the clamping face on fixed clamping arm.In the utility model in the tissue of clamping excision, the head that mechanical chuck can be carried out by fixed clamping arm is positioned, and is improved the convenience that mechanical chuck uses, be ensure that going on smoothly for operation.

Description

Femtosecond laser ophthalmology operation for myopia mechanical chuck

Technical field

The utility model relates to medical fields, and in particular to femtosecond laser ophthalmology operation for myopia mechanical chuck.

Background technique

Medical robot has that accurate positioning, stable, dexterity is strong, working range is big, not Keep away from radioactive and infection etc. Advantage can not only assist a physician and complete the accurate positioning of operative site, but also operation minimal damage may be implemented, and improve disease It diagnoses, the precision and quality of operative treatment, improves operation safety, shorten treatment time, reduce medical treatment cost.It is studied in recent years Have become one that the frontier of robot application, especially multifunctional medical robot have become medical robot development New direction.

The operation of femtosecond laser ophthalmology myoporthosis is presently most popular myopia corrective procedure technology, poly- by laser Coke cuts out lentiform tissue from cornea, then takes out tissue, to change the curvature of cornea, it is burnt to reach change view Movement away from point, to cure myopia and astigmatism.

When taking out the tissue of excision, doctor takes out tissue by tweezer shape machinery.The feeding head of tweezer shape machinery is at scissors Structure is made of two mutually hinged clamping pieces, when clamping the tissue of excision, is controlled two clamping pieces, is first made clamping piece It is rotated around hinged axis, and the clamping face between clamping piece is away from each other, then moves feeding head, so that the resistance of excision Value then rotates backward clamping piece around hinged axis, the clamping face between clamping piece is mutual between clamping piece It is mutually close, until clamping piece clamps the tissue of excision.

But due in use, needing to rotate two clamping pieces, the clip position for causing clamping piece final can not be true It is fixed, it is unfavorable in operation, the tissue of excision smoothly takes out.

Utility model content

The utility model aim is to provide femtosecond laser ophthalmology operation for myopia mechanical chuck, solves existing tweezer shape machine Tool collet is in use, needs to rotate two clamping pieces, the clip position for causing clamping piece final can not determine, be unfavorable for In operation, the problem of tissue of excision smoothly takes out.Femtosecond laser ophthalmology operation for myopia designed by the utility model is mechanical Collet, by a clamping piece, i.e. clamping limb is fixed, and as fixed clamping arm, another clamping limb is hinged on headstock, as work Dynamic clamping limb, then in the tissue of clamping excision, according to required retaining part, mobile fixed clamping arm, so that fixing clamp Clamping face in gripping arm is located at the position of final required clamping, active grasping arm is then driven again, so that on active grasping arm Clamping it is mobile towards the clamping face on fixed clamping arm, until two clamping faces clamp the tissue of excision.

The utility model is achieved through the following technical solutions:

Femtosecond laser ophthalmology operation for myopia mechanical chuck, including headstock, the clamp assemblies being mounted on headstock and drive The driving device of dynamic clamp assemblies, the clamp assemblies include fixed clamping arm and active grasping arm, and the fixed clamping arm is solid It is scheduled on the side of headstock upper surface, the bottom of the active grasping arm and headstock are hinged, the driving device and active grasping arm Connection, and articulated shaft axis of the active grasping arm around hinged place is driven to rotate, so that clamping face on active grasping arm and solid Clamping face contact in clamp gripping arm or the clamping face on active grasping arm are far from the clamping face on fixed clamping arm.

When using mechanical chuck designed by the utility model, according to required retaining part, mobile fixed clamping arm, with So that the clamping face on fixed clamping arm is located at the position of final required clamping, active grasping arm is then driven again, so that movable Clamping on clamping limb is mobile towards the clamping face on fixed clamping arm, until two clamping faces clamp the tissue of excision.

In the prior art, two clamping limbs rotate, and the clip position for causing clamping limb final can not determine, are unfavorable for cutting The clamping of the tissue removed.And in the utility model, a clamping limb in clamp assemblies is fixed up as fixed clamping arm, Another clamping limb is still in the active state of articulated connection, so as to can pass through fixed clamp in the tissue of clamping excision Arm carries out the head positioning of mechanical chuck, and the final clip position of mechanical chuck is then enable just to can determine before clamping；Together When by controlling active grasping arm the clamping of resection organization can be completed, improve the convenience that mechanical chuck uses, ensure that Operation is gone on smoothly.

Driving device can using motor add the combination of connecting rod, the combination of motor and rack-and-pinion, motor and belt group Conjunction or motor and the combination of bobbin winder device etc..

Further, mounting groove is provided at the top of the headstock, mounting groove is inserted into the bottom of the active grasping arm In, the cell wall of one end insertion mounting groove side of the articulated shaft, the other end activity of articulated shaft is inserted after active grasping arm Enter the cell wall of the mounting groove other side.

Active grasping arm can be directly hinged with the top end surface of headstock, can also as designed in the utility model one Sample is hinged in the mounting groove at the top of headstock.By setting mounting groove come hinged active grasping arm, so that the edge of active grasping arm The both ends of hinge axes are mounted the cell wall limit of slot, prevent active grasping arm from moving in the axial direction.

Further, it is provided on the active grasping arm and positioned at articulated shaft far from the side of fixed clamping arm logical Hole, the driving device include support frame, driving line and sequentially connected motor, wire spool, and there are two the driving lines, point It Wei not burst at the seams and zygonema, described one end burst at the seams pass through through-hole wound clockwise in the bottom of active grasping arm, what is burst at the seams is another End is wrapped on wire spool, and the zygonema through-hole wrapped anti-clockwise is wrapped in the bottom of active grasping arm, the other end of zygonema On wire spool, and burst at the seams with winding direction of the zygonema on wire spool on the contrary, the motor and wire spool are each attached to support On frame, the rotation of motor driven wire spool, then making to burst at the seams, gathering is wrapped on wire spool, zygonema lengthens or zygonema collapses winding On wire spool, bursting at the seams lengthens.

Burst at the seams the specific canoe on active grasping arm are as follows: the one end for the upper separate wire spool that bursts at the seams is far from through-hole In one end insertion through-hole of clamping limb, and one end from through-hole close to clamping limb is pierced by, and is then wound around on clamping limb.Work as electricity Machine driving wire spool rotation, which is then collapsed, to be pulled when bursting at the seams, and the pulling that the side on clamping limb far from clamping limb is burst at the seams receives friction Power and pulling force, then pull clamping limb, so that active grasping arm is rotated around hinged axis, then realize active grasping arm On clamping face far from the clamping face on fixed clamping arm.

Specific canoe of the zygonema on active grasping arm are as follows: one end in zygonema far from wire spool is clamped from activity The side of the nearly fixed clamping arm of arm rest is detoured from through-hole close to one end of clamping limb, and is inserted into through-hole, then remote from through-hole One end from clamping limb is pierced by, and is then wound around on clamping limb.When the rotation of motor driven wire spool, which is then collapsed, pulls zygonema, Then clamping limb is pulled because the pulling of zygonema receives frictional force and pulling force close to the side of clamping limb on clamping limb, so that living Dynamic clamping limb is rotated backward around hinged axis, then realizes the clamping face on active grasping arm on fixed clamping arm Clamping face, until clamping face contacts with each other.

Among the above, due to bursting at the seams with winding direction of the zygonema on wire spool on the contrary, the therefore clamping on active grasping arm When face is far from clamping face on fixed clamping arm, gathering of bursting at the seams is wrapped on wire spool, zygonema lengthens；Folder on active grasping arm When holding clamping face of the face on fixed clamping arm, zygonema gathering is wrapped on wire spool, bursting at the seams lengthens.

The utility model controls mechanical chuck by driving line, greatly reduces the volume on mechanical chuck head and letter Its structure is changed, conducive to going on smoothly for delicate surgery.

The utility model compared with prior art, has the following advantages and benefits:

1, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck consolidates a clamping limb in clamp assemblies Fixed to rise as fixed clamping arm, another clamping limb is still in the active state of articulated connection, so that in clamping excision When tissue, the head that mechanical chuck can be carried out by fixed clamping arm is positioned, and then enables the final clip position of mechanical chuck It just can determine before clamping；The clamping of resection organization can be completed by controlling active grasping arm simultaneously, improve mechanical folder The convenience that head uses, ensure that going on smoothly for operation；

2, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck controls mechanical chuck by driving line, It greatly reduces the volume on mechanical chuck head and simplifies its structure, conducive to going on smoothly for delicate surgery；

3, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, cell wall of the mounting groove far from fixed clamping arm It is connected to the side wall of headstock, and clamping limb can be pierced by from mounting groove far from the side of fixed clamping arm, increase active grasping arm Slewing area, improve the convenience that the utility model uses.

Detailed description of the invention

Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the side view of the utility model；

Fig. 3 is the cross-sectional view of the A-A along Fig. 2；

Fig. 4 is the structural schematic diagram of fixed clamping arm；

Fig. 5 is the side view of Fig. 4；

Fig. 6 is the cross-sectional view of the B-B along Fig. 5；

Fig. 7 is the structural schematic diagram of active grasping arm；

Fig. 8 is the side view of Fig. 7；

Fig. 9 is the cross-sectional view of the C-C along Fig. 8；

Figure 10 is the structural schematic diagram that clamp assemblies open；

Figure 11 is the side view of Figure 10；

Figure 12 is the cross-sectional view of the D-D along Figure 11；

Figure 13 is the position view being fixed on active grasping arm that bursts at the seams；

Figure 14 is that zygonema is fixed on the position view on active grasping arm.

Label and corresponding parts title in attached drawing:

1- headstock, 2- fixed clamping arm, 3- active grasping arm, 4- articulated shaft, 5- mounting groove, 6- through-hole, 7- burst at the seams, and 8- is closed Line, 9- pedestal, 10- connecting cylinder, 11- annular groove, 12- clamping face, 13- connecting hole, 14- threading hole.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment 1

As shown in Fig. 1-Figure 12, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, including headstock 1, peace The driving device of clamp assemblies and driving clamp assemblies on headstock 1, the clamp assemblies include 2 He of fixed clamping arm Active grasping arm 3, the fixed clamping arm 2 are fixed on the side of 1 upper surface of headstock, the bottom of the active grasping arm 3 and head Seat 1 is hinged, and the driving device is connect with active grasping arm 3, and drives articulated shaft 4 axis of the active grasping arm 3 around hinged place Line rotates, so that in the clamping face contact or active grasping arm 3 on the clamping face and fixed clamping arm 2 on active grasping arm 3 Clamping face far from the clamping face on fixed clamping arm 2.

When using mechanical chuck designed by the utility model, according to required retaining part, mobile fixed clamping arm, with So that the clamping face on fixed clamping arm is located at the position of final required clamping, active grasping arm is then driven again, so that movable Clamping on clamping limb is mobile towards the clamping face on fixed clamping arm, until two clamping faces clamp the tissue of excision.

In the prior art, two clamping limbs rotate, and the clip position for causing clamping limb final can not determine, are unfavorable for cutting The clamping of the tissue removed.And in the utility model, a clamping limb in clamp assemblies is fixed up as fixed clamping arm 2, another clamping limb is still in the active state of articulated connection, so as to can pass through fixing clamp in the tissue of clamping excision Gripping arm 2 carries out the head positioning of mechanical chuck, then enables the final clip position of mechanical chuck can be true before clamping It is fixed；The clamping of resection organization can be completed by controlling active grasping arm 2 simultaneously, improve the convenience that mechanical chuck uses, It ensure that going on smoothly for operation.

Further, the top of the headstock 1 is provided with mounting groove 5, installation is inserted into the bottom of the active grasping arm 3 In slot 5, the cell wall of one end insertion 5 side of mounting groove of the articulated shaft 4, the other end activity of articulated shaft 4 is through activity clamping The cell wall of 5 other side of mounting groove is inserted into after arm 3.

Active grasping arm 3 can be directly hinged with the top end surface of headstock 1, can also as designed in the utility model one Sample is hinged in the mounting groove 5 at 1 top of headstock.By setting mounting groove 5 come hinged active grasping arm 3, so that active grasping arm 3 both ends along hinge axes are mounted the cell wall limit of slot 5, prevent active grasping arm from moving in the axial direction.

Embodiment 2

The present embodiment is on the basis of embodiment 1, to make an explanation to the specific implementation of driving device.

As shown in Fig. 1-Figure 14, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, in the activity folder In gripping arm 3 and be located at articulated shaft 4 side of fixed clamping arm 2 be provided with through-hole 6, the driving device include support frame, Line and sequentially connected motor, wire spool are driven, there are two the driving lines, and respectively burst at the seams 7 and zygonema 8, described to burst at the seams 7 One end by 6 wound clockwise of through-hole in the bottom of active grasping arm 3,7 other end of bursting at the seams is wrapped on wire spool, described In the bottom of active grasping arm 3, the other end of zygonema 8 is wrapped on wire spool 8 through-hole of zygonema, 6 wrapped anti-clockwise, and 7 Hes of bursting at the seams Winding direction of the zygonema 8 on wire spool is on the contrary, the motor and wire spool are each attached on support frame, motor driven coiling Disk rotation, then making to burst at the seams, 7 gatherings are wrapped on wire spool, zygonema 8 lengthens or the gathering of zygonema 8 is wrapped on wire spool, opens Line 7 lengthens.

Burst at the seams the 7 specific canoe on active grasping arm 3 are as follows: as shown in figure 13, bursts at the seams on 7 far from wire spool One end is from one end insertion through-hole 6 of the through-hole 6 far from clamping limb 3, and one end from through-hole 6 close to clamping limb 3 is pierced by, then It is wrapped on clamping limb 3.When the rotation of motor driven wire spool then collapse pull burst at the seams 7 when, far from clamping limb 2 on clamping limb 3 Burst at the seams 7 pulling of side receive frictional force and pulling force, then clamping limb 3 is pulled, so that active grasping arm 3 is around hinged Axis rotation then realizes the clamping face on active grasping arm 3 far from the clamping face on fixed clamping arm 2.

Specific canoe of the zygonema 8 on active grasping arm 3 are as follows: as shown in figure 14, far from wire spool in zygonema 8 One end is detoured from through-hole 6 close to the side of fixed clamping arm 2 close to one end of clamping limb 3 from active grasping arm 3, and is inserted into through-hole In 6, then one end from through-hole 6 far from clamping limb 3 is pierced by, and is then wound around on clamping limb 3.When motor driven wire spool turns When dynamic then gathering pulling zygonema 8, close to the side of clamping limb 2 because the pulling of zygonema 8 receives frictional force and drawing on clamping limb 3 Power then pulls clamping limb 3, so that active grasping arm 3 is rotated backward around hinged axis, then realizes active grasping arm Clamping face of the clamping face on fixed clamping arm 2 on 3, until clamping face contacts with each other.

Among the above, due to burst at the seams 7 and winding direction of the zygonema 8 on wire spool on the contrary, the therefore folder on active grasping arm 3 When holding face far from clamping face on fixed clamping arm 2,7 gatherings of bursting at the seams are wrapped on wire spool, zygonema 8 lengthens；Active grasping arm When clamping face on fixed clamping arm 2 of clamping face on 3, the gathering of zygonema 8 is wrapped on wire spool, bursting at the seams 7 lengthens.

Embodiment 3

The present embodiment is to further illustrate on the basis of embodiment 2 to the specific implementation of driving device.

As shown in figs. 7 to 9, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, in the activity clamping The bottom of arm 3 is provided with U-shaped pedestal 9, and the U-shaped face of pedestal 9 is parallel to hinged axis, and it is open towards fixed clamping arm 2, the bottom of active grasping arm 3 is connect with the middle part of pedestal 9, pedestal 9 inside and opening is provided with connecting cylinder 10, the axis of the connecting cylinder 10 is parallel to the axis of articulated shaft 4, and the inner hole of connecting cylinder 10 and articulated shaft 4 cooperate, connecting cylinder On 10 close to 9 middle part of pedestal side and 9 middle part of pedestal formed through-hole 6, it is described burst at the seams 7 and zygonema 8 be wrapped in connecting cylinder On 10, the clamping face on active grasping arm 3 is located at side of the active grasping arm 3 far from pedestal 9 and close to fixed clamping arm 2 Side.

Further, annular groove 11 is provided on the side wall of the connecting cylinder 10, the axis of the annular groove 11 is parallel In the axis of connecting cylinder 10, and annular groove 11 is connected to close to the side of 9 middle part of pedestal with through-hole 6,7 and the zygonema 8 of bursting at the seams It is wrapped on the slot bottom of annular groove 11.

The setting of annular groove 11, in the positioning of 3 this one end of active grasping arm, prevents it along hinge convenient for zygonema 7 and zygonema 8 The sliding of spindle line.

Embodiment 4

The present embodiment is further illustrated to the implementation of driving device another kind.

The present embodiment is same as Example 3, only cancels driving line, wire spool, is changed to gear, rack gear and hydraulic Bar, gear are socketed in the outside of connecting cylinder 10, and axis is overlapped with the axis of connecting cylinder 10, and the rack gear is slidably arranged in headstock It on 1, and is engaged with gear, rack gear glide direction is parallel to the axis of headstock 1, the piston rod free end and tooth of the hydraulic stem Item connection, the telescopic direction of hydraulic stem are parallel to the glide direction of rack gear, the rotation of gear are realized by sliding rack, then It rotates active grasping arm 3 around hinged axis, the opening and closing action of clamp assemblies is completed.

Embodiment 5

The present embodiment is further illustrated to the specific implementation of active grasping arm 3.

Active grasping arm 3 and pedestal 9 and connecting cylinder 10 are integrally formed.

Embodiment 6

The present embodiment is made an explanation to mounting groove 5.

As shown in Fig. 1-Fig. 6 and Figure 10-12, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, institute It states cell wall of the mounting groove 5 far from fixed clamping arm 2 to be connected to the side wall of headstock 1, axis of the active grasping arm 3 around articulated shaft 4 Rotation and when the clamping face on active grasping arm 3 is far from clamping face on fixed clamping arm 2, clamping limb 3 is far from mounting groove 5 The side of fixed clamping arm 2 is pierced by.

Cell wall of the mounting groove 5 far from fixed clamping arm 2 is connected to the side wall of headstock 1, and clamping limb 3 can be remote from mounting groove 5 Side from fixed clamping arm 2 is pierced by, and increases the slewing area of active grasping arm 3, is improved the utility model and is used just Benefit.

Embodiment 7

The present embodiment is made an explanation to pedestal 9.

As shown in figs. 7 to 9, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, in order to further expand Side on the middle part of pedestal 9 close to 1 top of headstock is cut off, forms one by the angle that big active grasping arm 3 is able to rotate Oblique angle chamfering, then when rotating active grasping arm, active grasping arm can obtain bigger rotational angle, as shown in figure 12.

Embodiment 8

The present embodiment is made an explanation to fixed clamping arm 2 and active grasping arm 3.

As shown in figure 3, the utility model femtosecond laser ophthalmology operation for myopia mechanical chuck, 2 He of fixed clamping arm Active grasping arm 3 is modification of right-angled triangle plate, and in fixed clamping arm 2, one right-angle side is connect with headstock 1, another right-angle side For clamping face and towards active grasping arm 3；In active grasping arm 3, one straight flange and headstock 1 are hinged, and another right-angle side is folder Hold face and towards fixed clamping arm 2, the equal indent of the right angle of modification of right-angled triangle plate becomes arc-shaped concave.

Embodiment 9

Side on the side wall of the headstock 1 close to fixed clamping arm 2 is provided with the connecting hole being connected to mounting groove 5 13.When connecting hole 13 is convenient for assembly, the installation situation of all parts in mounting groove is observed.

It is provided with threading hole 14 on headstock 1, one end of line is driven to be connected on active grasping arm 3, drives the other end of line It is connect after threading hole 14 with driving device.

Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (7)

1. femtosecond laser ophthalmology operation for myopia mechanical chuck, including headstock (1), the clamp assemblies being mounted on headstock (1) with And the driving device of driving clamp assemblies, it is characterised in that: the clamp assemblies include fixed clamping arm (2) and active grasping arm (3), the fixed clamping arm (2) is fixed on the side of headstock (1) upper surface, the bottom of the active grasping arm (3) and headstock (1) hingedly, the driving device is connect with active grasping arm (3), and drives active grasping arm (3) around the articulated shaft of hinged place (4) axis rotation, so that the clamping face on active grasping arm (3) and the clamping face contact or work on fixed clamping arm (2) Clamping face on dynamic clamping limb (3) is far from the clamping face on fixed clamping arm (2).

2. femtosecond laser ophthalmology operation for myopia mechanical chuck according to claim 1, it is characterised in that: in the headstock (1) it is provided at the top of mounting groove (5), in bottom insertion mounting groove (5) of the active grasping arm (3), the articulated shaft (4) One end insertion mounting groove (5) side cell wall, the other end activity of articulated shaft (4) is through active grasping arm (3) insertion peace afterwards The cell wall of tankage (5) other side.

3. femtosecond laser ophthalmology operation for myopia mechanical chuck according to claim 1, it is characterised in that: in the activity It is provided with through-hole (6) on clamping limb (3) and positioned at articulated shaft (4) far from the side of fixed clamping arm (2), the driving device packet Support frame, driving line and sequentially connected motor, wire spool are included, there are two the driving lines, and respectively burst at the seams (7) and zygonema (8), described burst at the seams (7) one end by through-hole (6) wound clockwise in the bottom of active grasping arm (3), the another of (7) of bursting at the seams End is wrapped on wire spool, zygonema (8) through-hole (6) wrapped anti-clockwise in the bottom of active grasping arm (3), zygonema (8) The other end is wrapped on wire spool, and burst at the seams (7) and winding direction of the zygonema (8) on wire spool on the contrary, the motor and Wire spool is each attached on support frame.

4. femtosecond laser ophthalmology operation for myopia mechanical chuck according to claim 3, it is characterised in that: in the activity The bottom of clamping limb (3) is provided with U-shaped pedestal (9), and the U-shaped face of pedestal (9) is parallel to hinged axis, and its opening is towards admittedly The bottom of clamp gripping arm (2), active grasping arm (3) is connect with the middle part of pedestal (9), pedestal (9) inside and close to opening It being provided with connecting cylinder (10) at mouthful, the axis of the connecting cylinder (10) is parallel to the axis of articulated shaft (4), and connecting cylinder (10) Inner hole and articulated shaft (4) cooperate, and the side on connecting cylinder (10) close to pedestal (9) middle part forms logical with pedestal (9) middle part Hole (6), it is described to burst at the seams (7) and zygonema (8) is wrapped on connecting cylinder (10).

5. femtosecond laser ophthalmology operation for myopia mechanical chuck according to claim 4, it is characterised in that: in the connection It being provided with annular groove (11) on the side wall of cylinder (10), the axis of the annular groove (11) is parallel to the axis of connecting cylinder (10), and Annular groove (11) is connected to close to the side of pedestal (9) middle part with through-hole (6), described to burst at the seams (7) and zygonema (8) is wrapped in annular On the slot bottom of slot (11).

6. femtosecond laser ophthalmology operation for myopia mechanical chuck according to claim 2, it is characterised in that: the mounting groove (5) cell wall far from fixed clamping arm (2) is connected to the side wall of headstock (1), axis of the active grasping arm (3) around articulated shaft (4) Line rotation and when the clamping face on active grasping arm (3) is far from clamping face on fixed clamping arm (2), clamping limb (3) is from peace Tankage (5) is pierced by far from the side of fixed clamping arm (2).

7. femtosecond laser ophthalmology operation for myopia mechanical chuck according to any one of claims 1-5, it is characterised in that: The fixed clamping arm (2) and active grasping arm (3) are modification of right-angled triangle plate, in fixed clamping arm (2), one right-angle side with Headstock (1) connection, another right-angle side are clamping face and towards active grasping arm (3)；In active grasping arm (3), one straight flange Hingedly with headstock (1), for another right-angle side for clamping face and towards fixed clamping arm (2), the right angle of modification of right-angled triangle plate is equal Indent becomes arc-shaped concave.