CN103144131B - Self-locking type suture line preparation device and preparation method thereof - Google Patents

Self-locking type suture line preparation device and preparation method thereof Download PDF

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Publication number
CN103144131B
CN103144131B CN201310090777.7A CN201310090777A CN103144131B CN 103144131 B CN103144131 B CN 103144131B CN 201310090777 A CN201310090777 A CN 201310090777A CN 103144131 B CN103144131 B CN 103144131B
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suture
cut
self
blade
cutting tool
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CN103144131A (en
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王璐
何丽伟
金马汀
罗瑞
王文祖
汤肖绮
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Shanghai BANGYUN Medical Technology Co.,Ltd.
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Donghua University
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Abstract

The invention belongs to the field of medical-instrument preparation devices and provides a self-locking type suture line machine preparation device and a preparation method thereof. The self-locking type suture line machine preparation device comprises three parts: (1) a suture line holding device comprising two groups of combined rollers, a pressing roll, a line guiding roll and a suture line bearing disc; (2) a suture line cutting tool and an adjusting device comprising a blade, a blade fixing disc, a tool position adjusting device, a bearing and a transmission belt; and (3) a transmission device comprising a transmission speed control part and a to-be-cut suture line collecting winder. The suture line machine preparation device is designed according to different geometrical parameters of reverse teeth; the self-locking type suture lines with different specifications can be obtained by utilizing the self-locking type suture line preparation device; and the preparation device is applicable to preparation of various high-polymer suture lines with different types.

Description

Self-locking type suture preparation facilities and preparation method thereof
Technical field
The present invention relates to a kind of self-locking type suture machinery preparation facilities and preparation method thereof, belong to medicine equipment preparation facilities field.
Background technology
The method that suture is prepared pawl comprises machine cuts, laser cutting, model injection, punching press, extrudes, chemical etching etc.Machine cuts method comprises mechanical device cutting and vibration cutting.
Mechanical device cutting is that the geometry by changing blade prepares pawl, as US Patent No. 7624487B2 and US20110093010A1 with the motion controlling cutter.This preparation facilities mainly comprises three parts: suture transmitting device, a cutter sweep containing cutter and a clamping and fixing device.Cutter is generally driven by motor.
Cutting and stitching line is carried out, such as US Patent No. 20100275750A1 and US20120132054A1 by vibrational energy (such as ultrasonic wave) is acted on cutter during vibration cutting.This preparation method is not ideal on the precision controlling of pawl size.
It is inject mould pressing technology by high pressure to push down in the model cavity of the sutural shape and size manufacture of tooth by the resin injection of low melting viscosity, to obtain the pawl suture of corresponding geometric shape that model injects; Punching press carries out stamping-out according to given shape to flat belt-like thing or tablet, obtains the pawl suture of certain geometric shape; Also has the chemical etching for sheet metal; Such as US Patent No. 20100146770A1.This several preparation method has particular requirement to the kind of raw material and form, does not have universality.
Summary of the invention
The object of this invention is to provide a kind of can be applicable to all kinds of high polymer suture be raw material machine cuts equipment.Another object of the present invention is to provide a kind of sutural method of self-locking type adopting said apparatus to prepare different geometric shape.
In order to achieve the above object, technical scheme of the present invention there is provided a kind of self-locking type suture preparation facilities, comprises transmitting device, cutting tool, suture carrier, grip device and apparatus for adjusting position, it is characterized in that:
The blade that transmitting device controls in cutting tool on the one hand rotates in the horizontal plane with the rotating speed preset; Another aspect transmitting device is with the translational speed with rotational speed matches and provide suture to be cut with the displacement that cutting distance matches to grip device step-by-step movement;
Suture to be cut location is also firmly embedded on suture carrier by grip device;
Apparatus for adjusting position carries out position adjustments to cutting tool in X-axis, Y-axis and Z-direction;
Blade in cutting tool cuts suture in rotary course, makes sutural surface to be cut form pawl.
Preferably, described transmitting device comprises suture package to be cut, package collected by transmission speed control assembly and self-locking type suture, suture to be cut is wound in suture package to be cut, control self-locking type suture collection package by transmission speed control assembly and collect the suture of described cutting tool well cutting with the translational speed preset and displacement step-by-step movement to described grip device, simultaneously, the suture that suture package synchronous release to be cut is to be cut, transmission speed control assembly also controls blade in described cutting tool and rotates in the horizontal plane with the speed matched with sutural velocity of displacement to be cut.Preferably, described grip device comprises the first combined roller, guide roller, at least two pressure rollers, guide roller and the second combined roller, suture to be cut is directed to described suture carrier by guide roller again through the first combined roller after going out described suture package to be cut, it is made accurately to be embedded on suture carrier, by pressure roller, the suture to be cut be embedded on suture carrier is fixed, after suture after cutting goes out described suture carrier, the second combined roller is directed to via guide roller, suture after shearing is collected collected by package by described self-locking type suture after going out the second combined roller.
Preferably, described first combined roller and/or described second combined roller comprise three rollers, complete sutural gripping.
Preferably, described suture carrier comprises cylindrical disk body, the outer circumference surface of disk body has at least two circle V-type grooves, the not identical suture in order to hold different-diameter of groove width of each V-type groove, when selecting V-type groove, sutural radius is greater than the groove depth of the V-type groove corresponding with it.
Preferably, by described apparatus for adjusting position to the position adjustment in the Y-axis direction of described cutting tool, make the outermost of the knife edge of the blade in described cutting tool aim at the tip place of described V-type groove, be sutural outermost point; By described apparatus for adjusting position to the position adjustment in the Z-axis direction of described cutting tool, control the cutting angle of blade in circumgyration incision process of described cutting tool; By described apparatus for adjusting position to the position adjustment of described cutting tool on X-direction direction, control the depth of cut of blade in circumgyration incision process of described cutting tool.
Preferably, described cutting tool comprises at least one hold-down nut, blade and insert retention disk, and blade is fixed in insert retention disk by hold-down nut, and the knife edge part camber of blade, its point of a knife exposes insert retention disk.
Preferably, described transmission speed control assembly controls driving shaft and rotates, and driving shaft connects driven shaft by transport tape, and driven shaft drives described insert retention disk to rotate, and has bearing at driving shaft and driven shaft overcoat.
Another technical scheme of the present invention there is provided the sutural preparation method of a kind of self-locking type, it is characterized in that, step is:
The first step, preparation: steadily placed by above-mentioned self-locking type suture preparation facilities, apparatus for adjusting position is adjusted to initial position, gets out suture to be cut, to suture cut out the pawl of spiral distribution, then suture should first be twisted;
Second step, according to sutural diameter to be cut, suture carrier is selected the V-type groove be applicable to;
3rd step, by suture to be cut via the first combined roller and guide roller around on suture carrier, and be fixed by pressure roller, make suture at the tip place of the V-type groove of correspondence, sutural two ends to be cut are gripped by the first combined roller and the second combined roller respectively;
4th step, by apparatus for adjusting position to cutting tool position adjustment in the Y-axis direction, the point of a knife of the blade in cutting tool is made to aim at the tip place of V-type groove, select the velocity of rotation of blade movement according to sutural material to be cut, its velocity of rotation scope is 20r/min ~ 60r/min;
5th step, according to the initial position of blade and the requirement of cutting angle, by apparatus for adjusting position, cutting tool position is in the Z-axis direction adjusted, then, according to the requirement of tool position and depth of cut, by apparatus for adjusting position, cutting tool position is in the X-axis direction adjusted again, depth of cut and cutting shearing inclination are met the requirements;
6th step, according to the displacement of cutting distance by the stepping of transmission speed control assembly setting suture, preset the translational speed matched with the blade rotation speed in the 4th step again by transmission speed control assembly, the minimum of displacement of each stepping of suture is 0.025mm;
7th step, transmission speed control assembly controls suture with the displacement preset and the translational speed stepping preset, meanwhile, the blade on cutting tool carries out circumgyration incision to suture, makes sutural surface to be cut form pawl, when preparing bidirectional self-locking compact form suture, the first one-way movement of suture, cuts the pawl in what a direction, is more oppositely gripped by suture, complete the cutting of another direction pawl, two-way pawl can be obtained.
The present invention can meet different geometric shape is prepared in laboratory self-locking type suture to the sutural Research Requirements of self-locking type, and efficiency is high, experiment favorable reproducibility, meanwhile, is applicable to the sutural preparation of various high polymers of different model.
Accompanying drawing explanation
Fig. 1 is self-locking type suture preparation facilities basic structure schematic diagram;
Fig. 2 is the dominant structural moieties schematic diagram of self-locking type suture preparation facilities;
Fig. 3 is tool parts structural representation;
Fig. 4 is suture carrier schematic diagram.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Following examples all have employed a kind of self-locking type suture preparation facilities provided by the invention, as shown in Figure 1, comprise transmitting device 1, cutting tool 3, suture carrier 6, grip device 7 and apparatus for adjusting position 5.
As shown in Figure 4, cutting tool 3 forms jointly primarily of the first hold-down nut 31, second hold-down nut 33, blade 32 and insert retention disk 4.Wherein, blade 32 adopts knife blade, also can custom-made, and its knife edge part camber, make blade 32 be positioned in insert retention disk 4 by the first hold-down nut 31 and the second hold-down nut 33, the point of a knife of blade 32 exposes 1-2mm on blade fixed disc 34.
Composition graphs 2, blade fixed disc 34 is controlled to do circumgyration incision to suture by driven shaft, and driven shaft connects driving shaft by transport tape 42, and driving shaft is controlled by the transmission speed control assembly 13 of transmitting device 1 with the rotational speed preset.During cutting, on the knife edge of blade 32 and suture carrier 6, sutural relative position is the key factor controlling shearing inclination He shear the degree of depth.Sutural diameter is relatively thin, and the required precision of depth of cut and cutting angle is very high, therefore when controlling the relative position of cutter, need adopt high-precision controller.The present invention adopts the Precision trimming platform of buying, i.e. apparatus for adjusting position 5, realizes accurate mobile, controls the free degree of cutting tool 3 on X-axis, Y-axis and Z axis three directions, and can resetting.
Cutting tool 3 controls its movement velocity primarily of transmission speed control assembly 13, controls its motion, and regulated the position of cutting tool 3 by tool position adjusting device 5 by transport tape 41 and axle.The motion of cutting tool 3 is divided into intermittent and continuity motion, and the velocity of rotation scope that wherein cutting tool 3 moves is 20r/min ~ 60r/min.And the power section of cutting tool 3 mainly controls horizontally rotating of blade 32, require the slow-roll stabilization of cutting tool 3, speed is even, and cutting movement so just can be made to stablize and carry out, pawl uniform force during cutting, the form cut out is consistent.And blade 32 is the key factor controlling self-locking type suture cutting angle and depth of cut with the relative position of suture on suture carrier 6.Sutural diameter is relatively thin, and the required precision of depth of cut and cutting angle is very high, therefore when controlling the relative position of blade 32, need adopt the fine adjustment stage of high-precision controller.Tool position adjusting device 5 in the present invention can realize accurate mobile, controls the free degree in X, Y, Z axis three directions, and can resetting.In the preparation and geometric parameter adjustment of cutting, Y-axis adjustment makes the outermost of the knife edge and point of a knife part aim at the tip place of V-type groove on suture carrier 6, the namely outermost point of cutting and stitching line.When blade fixed disc 34 is fixing, the sutural cutting angle of Z-axis direction regulable control self-locking type, X axis regulable control depth of cut.
Transmitting device 1 comprises suture package 11 to be cut, transmission speed control assembly 13 and self-locking type suture and collects package 12, suture to be cut is wound in suture package 11 to be cut, controlling self-locking type suture collection package 12 by transmission speed control assembly 13 collects by the suture of cutting tool 3 well cutting with the translational speed preset and displacement step-by-step movement to grip device 7.Rotational speed matches when this translational speed and blade 32 circumgyration incision.Displacement then matches with the cutting distance of suture upper inverted tooth.Transmission speed control assembly 13 also controls suture package 11 to be cut simultaneously synchronously provides suture to be sheared.Transmission speed control assembly 13 also controls blade 32 in cutting tool 3 and rotates in the horizontal plane with the speed matched with sutural velocity of displacement to be cut.In the present embodiment, transmission speed control assembly 13 is primarily of power supply, PC single-chip microcomputer, signal amplifies associated components such as adjustment components and parts and stepper motor etc. and jointly forms, its operation principle is: according to the requirement of rotating speed when cutting distance and blade 32 circumgyration incision, PC single-chip microcomputer outputs signal, this signal amplifies adjusting device by signal and is transferred on stepper motor, stepper motor is rotated by given design load, stepper motor is connected with grip device 7 again, suture package 11 to be cut is made to collect by the suture of cutting tool 3 well cutting with the translational speed preset and displacement step-by-step movement to grip device 7, .
Grip device 7 comprises the first combined roller 71, guide roller 72, first pressure roller 73, second pressure roller 74, guide roller 75 and the second combined roller 76, first combined roller 71 and the second combined roller 76 are mutually combined closely by three rollers to form respectively, are formed sutural gripping.Go out after suture package 11 to be cut wait the suture sheared and be directed to suture carrier 6 by guide roller 72 again through the first combined roller 71, it is made accurately to be embedded on suture carrier 6, by the first pressure roller 73 and the second pressure roller 74, the suture to be cut be wrapped on suture carrier 6 is fixed, after suture after cutting goes out suture carrier 6, be directed to the second combined roller 76 via guide roller 75, the suture after cutting is collected collected by package 12 by self-locking type suture after going out the second combined roller 76.
As shown in Figure 3, suture carrier 6 is fixed on bracing frame 8 by hex nut and screw, and it comprises cylindrical disk body, and the outer circumference surface of disk body has the first V-type groove 61 and the second V-type groove 62.First V-type groove 61 and the second V-type groove 62 are used for placing the suture of different-diameter size respectively, prevent suture to be cut in blade cuts stressed generation slippage on, need to guarantee that sutural radius is greater than the groove depth of corresponding V-type groove simultaneously.
Embodiment 1
1) preparation: adjustment bracing frame 8 base assurance device is steadily placed, and apparatus for adjusting position 5 is adjusted to initial position, gets out the polypropylene fibre suture that specification is 3-0;
2) suture carrier 6 is selected to be fixed on device according to the polypropylene fibre suture of 3-0, suture to be cut is entered in the V-type groove that groove depth is 0.10mm by suture package 11 to be cut through the first combined roller 71 and guide roller 72, discharge the first pressure roller 73 and the second pressure roller 74, it is made to fix suture to be cut in groove, suture, again through cord roller 75 to the second combined roller 76, is finally collected in suture to be cut and collects package 12;
3) make the point of a knife of blade 32 just to center and the sutural outermost end of V-type groove by the Y-axis displacement of fine adjustment stage on apparatus for adjusting position 5, fixing Y-axis, the rotary speed of tool motion selects 20r/min; Then remove blade 32, make point of a knife move apart suture;
4) in adjusting position adjusting device 5, the Z-axis direction displacement of fine adjustment stage is 25.00mm, and X axis displacement is 40.00mm;
5) by being input to pulse signal frequency and the umber of pulse of stepper motor in controls transfer speed control unit 13, suture package 11 to be cut and suture to be cut is regulated to collect the velocity of rotation of package 12 and sutural translational speed and displacement respectively; Meanwhile, controlled the velocity of rotation of cutting tool 3 by conveying velocity control apparatus 13, its suture translational speed is matched with blade cuts speed, obtaining the time of often cutting a pawl is 3s, and suture displacement is 0.050mm;
6) cutting movement in step 5 is repeated, cutting 2010 pawls so continuously, can obtain one section of pawl segment length on the polypropylene fibre suture that specification is 3-0 is the pawl of 10cm, and its depth of cut is 0.03mm, cutting angle is 130 °, and tooth pitch is 0.05mm.
Embodiment 2
1) preparation: adjustment bracing frame 8 base assurance device is steadily placed, and apparatus for adjusting position 5 is adjusted to initial position, gets out the nylon suture that specification is 2-0, twisting makes its angle of twist be 10 °;
2) suture carrier 6 is selected to be fixed on device according to the polypropylene fibre suture of 3-0, suture to be cut is entered in the V-type groove that groove depth is 0.15mm by suture package 11 to be cut through the first combined roller 71 and guide roller 72, discharge the first pressure roller 73 and the second pressure roller 74, it is made to fix suture to be cut in groove, suture, again through cord roller 75 to the second combined roller 76, is finally collected in suture to be cut and collects package 12;
3) make the point of a knife of blade 32 just to center and the sutural outermost end of V-type groove by the Y-axis displacement of fine adjustment stage on apparatus for adjusting position 5, fixing Y-axis, the rotary speed of tool motion selects 30r/min; Then remove blade 32, make point of a knife move apart suture;
4) in adjusting position adjusting device 5, the Z-axis direction displacement of fine adjustment stage is 11.61mm, and the displacement regulating X axis is 23.94mm;
5) by being input to pulse signal frequency and the umber of pulse of stepper motor in controls transfer speed control unit 13, suture package 11 to be cut and suture to be cut is regulated to collect the velocity of rotation of package 12 and sutural translational speed and displacement respectively; Meanwhile, controlled the velocity of rotation of cutter 3 by conveying velocity control apparatus 13, its suture translational speed is matched with blade cuts speed, obtaining the time of often cutting a pawl is 2s, and suture displacement is 0.500mm;
6) cutting movement in step 5 is repeated, cutting 205 pawls so continuously, after having cut, suture is removed from preparation facilities, then untwisting is carried out, can obtain the pawl that one section of pawl segment length is the spiral distribution of 10cm in the nylon suture that specification is 2-0, its depth of cut is 0.07mm, and cutting angle is 150 °, tooth pitch is 0.5mm, and helical angle is 10 °.
Embodiment 3
1) preparation: adjustment bracing frame 8 base assurance device is steadily placed, and apparatus for adjusting position 5 is adjusted to initial position, gets out poly (glycolide-lactide) (PGLA) suture that specification is 1;
2) poly (glycolide-lactide) (PGLA) suture being 1 according to specification selects suture carrier 6 to be fixed on device, suture to be cut is entered in the V-type groove that groove depth is 0.25mm by suture package 11 to be cut through the first combined roller 71 and guide roller 72, discharge the first pressure roller 73 and the second pressure roller 74, it is made to fix suture to be cut in groove, suture, again through cord roller 75 to the second combined roller 76, is finally collected in suture to be cut and collects package 12;
3) make the point of a knife of blade 32 just to center and the sutural outermost end of V-type groove by the Y-axis displacement of fine adjustment stage on apparatus for adjusting position 5, fixing Y-axis, the rotary speed of tool motion selects 60r/min; Then remove blade 32, make point of a knife move apart suture;
4) in adjusting position adjusting device 5, the Z-axis direction displacement of fine adjustment stage is 4.48mm, and the displacement regulating X axis is 3.58mm;
5) by being input to pulse signal frequency and the umber of pulse of stepper motor in controls transfer speed control unit 13, suture package 11 to be cut and suture to be cut is regulated to collect the velocity of rotation of package 12 and sutural translational speed and displacement respectively; Meanwhile, controlled the velocity of rotation of cutter 3 by conveying velocity control apparatus 13, its suture translational speed is matched with blade cuts speed, obtaining the time of often cutting a pawl is 1s, and displacement is 2.000mm;
6) cutting movement in step 5 is repeated, so continuously after cutting 36 pawls, again suture is removed preparation facilities, then it is oppositely gripped again on preparation facilities, and former pawl art end interval 5mm, restart cutting, cutting movement in same repetition step 5, namely the cutting of another 36 pawls in direction is completed after continuous cutting 36 pawls, can obtain one section of pawl segment length on the PGLA suture that specification is 1 is like this pawl of 14cm, the wherein each 7cm in both sides, middle spacing is 5mm, depth of cut is 0.16mm, cutting angle is 170 °, tooth pitch is 2mm.
Embodiment 4
1) preparation: adjustment bracing frame 8 base assurance device is steadily placed, and apparatus for adjusting position 5 is adjusted to initial position, gets out PPDO (PPDO) suture that specification is 0, twisting makes its angle of twist be 15 °;
2) according to specification be 0 PPDO (PPDO) suture, suture carrier 6 is selected to be fixed on device, suture to be cut is entered in the V-type groove that groove depth is 0.20mm by suture package 11 to be cut through the first combined roller 71 and guide roller 72, discharge the first pressure roller 73 and the second pressure roller 74, it is made to fix suture to be cut in groove, suture, again through cord roller 75 to the second combined roller 76, is finally collected in suture to be cut and collects package 12;
3) make the point of a knife of blade 32 just to center and the sutural outermost end of V-type groove by the Y-axis displacement of fine adjustment stage on apparatus for adjusting position 5, fixing Y-axis, the rotary speed of tool motion selects 30r/min; Then remove blade 32, make point of a knife move apart suture;
4) in adjusting position adjusting device 5, the Z-axis direction displacement of fine adjustment stage is 11.61mm, and the displacement regulating X axis is 23.72mm;
5) by being input to pulse signal frequency and the umber of pulse of stepper motor in controls transfer speed control unit 13, suture package 11 to be cut and suture to be cut is regulated to collect the velocity of rotation of package 12 and sutural translational speed and displacement respectively; Meanwhile, controlled the velocity of rotation of cutter 3 by conveying velocity control apparatus 13, its suture translational speed is matched with blade cuts speed, obtaining the time of often cutting a pawl is 2s, and displacement is 1.000mm;
6) cutting movement in step 5 is repeated, so continuously after cutting 71 pawls, again suture is removed preparation facilities, then it is oppositely gripped again on preparation facilities, with hope pawl space from end 3mm, restart cutting, the same cutting movement repeated in step 5, after cutting 71 pawls, namely complete the cutting of another 36 pawls in direction continuously; After all having cut, suture is removed from preparation facilities, then untwisting is carried out, the pawl that one section of pawl segment length is the spiral distribution of 14cm can be obtained on the PPDO suture that specification is 0, the wherein each 7cm in both sides, middle spacing is 3mm, and depth of cut is 0.18mm, and cutting angle is 150 °, tooth pitch is 1mm, and helical angle is 15 °.

Claims (9)

1. a self-locking type suture preparation facilities, comprises transmitting device (1), cutting tool (3), suture carrier (6), grip device (7) and apparatus for adjusting position (5), it is characterized in that:
The blade (32) that transmitting device (1) controls in cutting tool (3) on the one hand rotates in the horizontal plane with the rotating speed preset; Another aspect transmitting device (1) is with the translational speed with rotational speed matches and provide suture to be cut with the displacement that shear distance matches to grip device (7) step-by-step movement;
Suture to be cut location is also firmly wrapped on suture carrier (6) by grip device (7);
Apparatus for adjusting position (5) carries out position adjustments to cutting tool (3) in X-axis, Y-axis and Z-direction;
Blade (32) in cutting tool (3) cuts suture in rotary course, makes sutural surface to be cut form pawl.
2. a kind of self-locking type suture preparation facilities as claimed in claim 1, it is characterized in that: described transmitting device (1) comprises suture package (11) to be cut, package (12) collected by transmission speed control assembly (13) and self-locking type suture, suture to be sheared is wound on suture package (11) to be cut, controlling self-locking type suture collection package (12) by transmission speed control assembly (13) collects by the suture of described cutting tool (3) well cutting with the translational speed preset and displacement step-by-step movement to described grip device (7), transmission speed control assembly (13) also controls suture package (11) synchronous release to be cut suture to be cut simultaneously, transmission speed control assembly (13) also controls blade (32) in described cutting tool (3) and rotates in the horizontal plane with the speed matched with sutural velocity of displacement to be cut.
3. a kind of self-locking type suture preparation facilities as claimed in claim 2, it is characterized in that: described grip device (7) comprises the first combined roller (71), guide roller (72), at least two pressure rollers, guide roller (75) and the second combined roller (76), go out after described suture package (11) to be cut wait the suture sheared and be directed to described suture carrier (6) by guide roller (72) again through the first combined roller (71), it is made accurately to be wrapped on suture carrier (6), by pressure roller, the suture to be sheared be embedded on suture carrier (6) is fixed, after suture after cutting goes out described suture carrier (6), the second combined roller (76) is directed to via guide roller (75), suture after cutting is collected collected by package (12) by described self-locking type suture after going out the second combined roller (76).
4. a kind of self-locking type suture preparation facilities as claimed in claim 3, is characterized in that: described first combined roller (71) and/or described second combined roller (76) respectively comprise three rollers, complete sutural gripping.
5. a kind of self-locking type suture preparation facilities as claimed in claim 1, it is characterized in that: described suture carrier (6) comprises cylindrical disk body, the outer circumference surface of disk body has at least two circle V-type grooves, the not identical suture in order to hold different-diameter of groove width of each V-type groove, sutural radius is greater than the groove depth of the V-type groove corresponding with it.
6. a kind of self-locking type suture preparation facilities as claimed in claim 5, it is characterized in that: by described apparatus for adjusting position (5) to described cutting tool (3) position adjustment in the Y-axis direction, make the outermost of the knife edge of the blade (32) in described cutting tool (3) aim at the tip place of described V-type groove, be sutural outermost point; By described apparatus for adjusting position (5) to described cutting tool (3) position adjustment in the Z-axis direction, control blade (32) cutting angle in circumgyration incision process of described cutting tool (3); By described apparatus for adjusting position (5) to described cutting tool (3) position adjustment in the Z-axis direction, control blade (32) depth of cut in circumgyration incision process of described cutting tool (3).
7. a kind of self-locking type suture preparation facilities as claimed in claim 1, it is characterized in that: described cutting tool (3) comprises at least one hold-down nut, blade (32) and insert retention disk (34), blade (32) is fixed in insert retention disk (34) by hold-down nut, the knife edge part camber of blade (32), its point of a knife exposes insert retention disk (34).
8. a kind of self-locking type suture preparation facilities as claimed in claim 7, it is characterized in that: described transmission speed control assembly (13) controls driving shaft and rotates, driving shaft connects driven shaft by transport tape (41), driven shaft drives described insert retention disk (34) to rotate, and has bearing (42) at driving shaft and driven shaft overcoat.
9. the sutural preparation method of self-locking type, is characterized in that, step is:
The first step, preparation: self-locking type suture preparation facilities as claimed in claim 1 is steadily placed, apparatus for adjusting position (5) is adjusted to initial position, gets out suture to be cut, to suture cut out the pawl of spiral distribution, then suture should first be twisted;
Second step, according to sutural diameter to be cut, at the upper V-type groove selecting to be applicable to of suture carrier (6);
3rd step, by suture to be cut via the first combined roller (71) and guide roller (72) around to suture carrier (6), and be fixed by pressure roller, make suture at the tip place of the V-type groove of correspondence, sutural two ends to be cut are gripped by the first combined roller (71) and the second combined roller (76) respectively;
4th step, by apparatus for adjusting position (5) to cutting tool (3) position adjustment in the Y-axis direction, the outermost of the knife edge of the blade (32) in cutting tool (3) is made to aim at the tip place of V-type groove, according to the velocity of rotation that sutural material to be cut selects blade (32) to move, its velocity of rotation scope is 20r/min ~ 60r/min;
5th step, according to the initial position of blade (32) and the requirement of cutting angle, by apparatus for adjusting position (5), cutting tool (3) position is in the Z-axis direction adjusted, then, according to the requirement of tool position and depth of cut, by apparatus for adjusting position (5), cutting tool (3) position is in the X-axis direction adjusted again, depth of cut and cutting angle are met the requirements;
6th step, according to the displacement of cutting distance by the stepping of transmission speed control assembly (13) setting suture, preset the translational speed matched with blade (32) velocity of rotation in the 4th step again by transmission speed control assembly (13), the minimum of displacement of each stepping of suture is 0.025mm;
7th step, transmission speed control assembly (13) controls suture with the displacement preset and the translational speed stepping preset, meanwhile, the blade (32) on cutting tool (3) carries out circumgyration incision to suture, makes sutural surface to be sheared form pawl, when preparing bidirectional self-locking compact form suture, the first one-way movement of suture, cuts the pawl in what a direction, is more oppositely gripped by suture, complete the cutting of another direction pawl, two-way pawl can be obtained.
CN201310090777.7A 2013-03-20 2013-03-20 Self-locking type suture line preparation device and preparation method thereof Active CN103144131B (en)

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CN101874746A (en) * 2009-04-29 2010-11-03 Tyco医疗健康集团 System and method for making tapered looped suture
CN101874747A (en) * 2009-04-29 2010-11-03 Tyco医疗健康集团 System and method for forming barbs on a suture
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