Flat suture holdfastTechnical field
The present invention relates to surgical equipment, in particular it relates to flat suture holdfast.
Background technology
In recent years, the band line holdfast technology by material of titanium alloy, PEEK and poly-lactic acid material be widely used in soft tissue withThe reparation of bone tissue junction damage, such as：In rotator cuff injury, Glenoid labruminjury, near end of thighbone tendon injury, shoulder joint before and after broad-mouthed receptacle for holding liquid lipThe damage in portion, collateral ulnar ligament damage is rebuild, the tendon injury of bicipital muscle of arm distal end, and ligament reparation between scapholunatum, triangle fiber is softBone Defect Repari, extensor tendon injury repair etc..The similar screw of this kind of hard holdfast is threaded onto the bone tissue needed near fixed positionOn, the suture preloaded on holdfast tenses suture by soft tissue and bone tissue surface through the soft tissue for needing to repair by bundlingContact is fixed, and completes the peripheral doses of damaged tissues.
As the application of hard material holdfast technology is increasingly extensive, there are many defects known to hard material holdfast：Titanium alloy metalEasily because rejection is inflamed after holdfast implantation, implant site is caused to occur bone dissolving, initiation holdfast loosens, displacement, makesInto fixed failure.PLA classes can absorb after holdfast implantation may premature breakdown and broken, secondary holdfast displacement causes fixationDegree declines, and degradation product may cause synovitis, the problems such as bone dissolves.
The band line holdfast of PEEK materials solves the problems such as easily loosening, shift after the implantation of titanium alloy holdfast, also solvesThe holdfast of absorbable material plants rupture or premature breakdown after people, and secondary displacement causes fix tightly soundness to decline, and degradation product is easily ledCause synovitis, the problems such as bone dissolves.In actual applications, band line holdfast behind implantation bone road, it is necessary to doctor by suture with strengthHoldfast outwards is dragged, holdfast axial direction on the one hand can be adjusted, more agree with bone road, on the other hand can in advance eliminate and useThe issuable displacement in bone road of middle holdfast, strengthens fix tightly soundness.But traditional suture diameter is smaller, and cross section isCircle, doctor is during firmly holdfast is dragged, and circular stitchings may be made to the palm of operation site boundary tissue even doctorInto incised wound, typical round suture is also easily torn when bearing so big pulling force.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of flat suture holdfast.
The flat suture holdfast provided according to the present invention, includes rivet nut and pull line；
The rivet nut includes threading hole；
The pull line is located in threading hole to be connected with rivet nut；
Pull line and include flat suture, the flat suture is extended to outside rivet nut.
Preferably, the pull line also includes the soft bar of anti-cutting；
The flat suture is connected with the threading hole；
The two ends of flat suture and the two ends of the soft bar of the anti-cutting are respectively connected with.
Preferably, the flat suture passes through the threading hole；
Flat suture joins end to end.
Preferably, the rivet nut is axially disposed perforate, and the perforate in axial direction extends through rivet nut near-endFace；
The threading hole is arranged on the distal end of perforate.
There are one or more threading holes；
Pull line is worn along threading hole, and extends rivet nut proximal end face along the perforate.
Preferably, the perforate cross sectional shape is rectangle.
Preferably, the threading hole is arranged on the proximal end face of the rivet nut；
There are one or more threading holes.
Preferably, also comprising standby guide wire；
In the presence of one or more standby guide wire；
The standby guide wire is worn with pull line in threading hole；
Separated between standby guide wire and pull line.
Preferably, the rivet nut outer wall is provided with check sheet；
Check sheet stretches out from rivet nut outer wall by following rule：
- along the radial direction away from rivet nut axis；
- along rivet nut distal end to the axial direction of rivet nut near-end.
Preferably, also comprising elastic component and umbrella shape part；
Perforate is provided with the rivet nut, the elastic component is located in perforate；
The pull line can make elastic component deform；
Elastic component is connected with umbrella shape part, and elastic component can drive umbrella shape part to extend across rivet nut outer wall.
Preferably, the rivet nut is made up of PEEK materials.
Compared with prior art, the present invention has following beneficial effect：
1st, the flat suture that the present invention is used increases the contact surface with tissue, prevents in surgical procedure to SurgeryPosition perienchyma even doctor's palm causes incised wound, and adds fixing intensity；
2nd, the invention provides standby guide wire, holdfast can not be taken out, directly again in the case where suture is surprisingly brokenWear a suture；
3rd, elastic component is provided with holdfast, when the power for pulling coil is sufficiently large, holdfast is issuable in useDisplacement is eliminated in advance, while elastic component deform and sends the sound of " click ", and prompting doctor holdfast is in place；
4th, the present invention is provided with umbrella shape part, is driven by elastic component, and umbrella shape part can stretch out outside rivet nut and be contacted with bone cavity,Increase fix tightly soundness.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,Objects and advantages will become more apparent upon：
Fig. 1 is with flat suture holdfast schematic diagram of the soft bar of anti-cutting with perforate；
Fig. 2 is without flat suture holdfast schematic diagram of the soft bar of anti-cutting with perforate；
Fig. 3 is with flat suture holdfast schematic diagram of the soft bar of anti-cutting without perforate；
Fig. 4 is without flat suture holdfast schematic diagram of the soft bar of anti-cutting without perforate；
Fig. 5 is a kind of soft bar schematic diagram of anti-cutting；
Fig. 6 is umbrella shape part rounding state schematic diagram；
Fig. 7 is umbrella shape part softened state schematic diagram.
Shown in figure：
The clasp 211 of rivet nut 1
The flat suture 22 of threading hole 11
The elastic component 3 of perforate 12
The draw ring 31 of check sheet 13
Pull the umbrella shape part 4 of line 2
The soft strut 41 of bar 21 of anti-cutting
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this areaPersonnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this areaFor personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present inventionProtection domain.
In embodiment, the flat suture holdfast that the present invention is provided includes rivet nut 1 and pull line 2, and rivet nut 1 is by PEEK material systemsIt is made into but it is also possible to be the other materials by such as titanium alloy, poly-lactic acid material.As shown in Figures 1 to 4, set in rivet nut 1There is threading hole 11, pull line 2, which can be passed, to be located in threading hole 11.To solve in surgical procedure, traditional circular seam line easily hurts handThe problem of art site boundary tissue, the pull line 2 that the present invention is designed includes flat suture 22, increases the contact with tissueFace.During operation, the hand-held flat soft bar 21 of suture 22 or anti-cutting of doctor increases and pulled the contact area between line 2, so thatPrevent incised wound.To reach the effect above, several change case are divided to be introduced respectively below.
As shown in figure 1, the rivet nut 1 with line holdfast is axially disposed perforate 12, perforate 12 in axial direction extends and passed throughThe proximal end face of drift bolt body 1, the distal end of perforate 12 is provided with a threading hole 11, and threading hole 11 is along the radial direction of rivet nut 1 through nailGuiding groove is provided with body 1, the distal face of rivet nut 1, prevents pull line 2 from departing from when wearing around thread path.Line 2 is pulled by flatFlush joint line 22 is constituted with the soft two parts of bar 21 of anti-cutting, and flat suture 22 is located in inside rivet nut 1, and two ends extend through rivet nut1 proximal end face, reaches the outside of rivet nut, two ends of circular seam line 22 continue to extend, and are connected on the soft bar 21 of an anti-cutting respectivelyTwo ends, during operation, rivet nut 1 reach precalculated position after, the soft bar 21 of the hand-held anti-cutting of doctor outwards drags rivet nut 1, with elimination useThe issuable displacement in bone road of middle rivet nut 1, strengthens fix tightly soundness.The connected mode of flat suture 22 and the soft bar 21 of anti-cuttingCan be direct knot connection or structure as shown in Figure 5, the soft bar 21 of anti-cutting is fabricated into two ends has clasp 211Handle, the two ends of flat suture 22 are tied up on two clasps 211 respectively.In addition, the soft bar 21 of anti-cutting can also be with axiallyThe structure of through hole, one end of flat suture 22 passes through after the through hole and knotted with the other end, and the soft bar 21 of anti-cutting is in useCan relative flat's suture 22 slide, convenient adjustment pulls position.It is further preferred that the soft bar 21 of anti-cutting can also be by soft clothRoll to be formed, have adhering fastener mechanism on soft cloth, after the flat knotting of suture 22, directly the soft bar 21 of anti-cutting is enclosed on flat suture 22.
As shown in Fig. 2 in change case, pull line 2 is directly made up of flat suture 22, and flat suture 22 is worn in rivet nut 1If behind the outsides that rivet nut 1 is extended to along perforate 12, directly two ends being knotted and connected, you can carries out the operation of next step, makesWith conveniently.To cause the process that wears of flat suture 22 to become simpler, can by the Cross section Design of the perforate 12 of rivet nut 1 intoRectangular shape, matches with the profile of flat suture 22.Certainly, the feature of the square-section of perforate 12 can also be applied to othersIn change case, it is further preferred that the cross sectional shape of perforate 12 can also be the other shapes in addition to rectangle, circle, such as justPentagon etc..Preferably, pull line 2 wearing mode and can also be changed in rivet nut 1, such as, be provided with rivet nut 1Two threading holes 11, two threading holes 11 run through rivet nut 1 along the radial direction of rivet nut 1, and along above and below the axial direction of rivet nut 1Distribution, two threading holes 11 are communicated with perforate 12, and one end of pull line 2 penetrates rivet nut 1 from perforate 12, along wearing for the side of rivet nut 1String holes 11, which is passed, to be penetrated, then is passed and penetrated along the threading hole 11 of the opposite side of rivet nut 1, finally extends the near of rivet nut 1 along perforate 12End face.Accordingly, the quantity of threading hole 11 can be one or more, for the purpose of reaching connection of the rivet nut 1 with pull line 2,But the quantity of threading hole 11 is more, the processing of rivet nut 1 is more complicated, and the difficulty of threading is also bigger.
Change case as shown in Figure 3, Figure 4, the change case that corresponding diagram 1, Fig. 2 are provided respectively, difference is：Fig. 3, Fig. 4 giveThere is no perforate 12 in the rivet nut 1 of the change case gone out, threading hole 11 is arranged on the proximal end face of rivet nut 1, the quantity of threading hole 11 withAnd the explanation that pull line 2 is worn is as described above.
In surgical procedure, the situation that pull line 2 is pulled off can be often run into, if now taken rivet nut 1 from operative siteGo out threading again again, it will become unusual complexity, therefore the present invention further comprises standby guide wire.Operation consent enters to rivet nut 1During row threading is operated, one or more standby guide wire is taken together to be worn with pull line 2 in threading hole 11, if handPull line 2 is broken in art, directly pull line 2 can be taken out out of rivet nut 1, divided between standby guide wire and pull line 2From now one end of standby guide wire being connected with a new pull line 2 again, the other end for holding standby guide wire is simultaneously outsideExtract, guide new pull line 2 to pass through threading hole 11, completion is connected with wearing for rivet nut 1.In addition, to limit rivet nut 1 in bone roadIn displacement, in preference, the outer wall of rivet nut 1 is provided with check sheet 13, check sheet 13 from the outer wall of rivet nut 1 by following rule outwardsExtension：Along the radial direction away from the axis of rivet nut 1；Along the distal end of rivet nut 1 to the axial direction of rivet nut near-end.
In preference, the flat suture holdfast that the present invention is provided is also comprising elastic component 3 and umbrella shape part 4, and this feature is present inBand line holdfast containing perforate 12 in rivet nut 1.Elastic component 3 is arranged in perforate 12, and the two ends of elastic component 3 are arranged on the wall of perforate 12On face, the upper end of elastic component 3 has draw ring 31, and pull line 2 is connected through draw ring 31 with elastic component 3.The lower end connection of elastic component 3There is a umbrella shape part 4, elastic component 3 can control umbrella shape part 4 to change between rounding state and softened state both states：ReceiveHold together under state, umbrella shape part 4 is integrally located inside rivet nut 1；Under softened state, the strut 41 of umbrella shape part 4 reaches the outside of rivet nut 1.For a untapped band line holdfast, internal elastic component 3 is concave shape, and umbrella shape part 4 is in rounding state；Work as elastic component3 to be changed into convex shape be that umbrella shape part 4 is changed into softened state under the pull effect of pull line 2.Umbrella shape part 4 under softened state,The bearing of trend of strut 41 is identical with above-mentioned check sheet 13, i.e., strut 41 stretches out from the outer wall of rivet nut 1 by following rule：Along the radial direction away from the axis of rivet nut 1；Along the distal end of rivet nut 1 to the axial direction of rivet nut near-end.Its act on also with check sheet 13It is identical, that is, limit displacement of the rivet nut 1 in bone road.The quantity of strut 41 can be one or more, in preference, be provided with4 or 6 struts 41 are uniformly distributed circumferentially.The elasticity of elastic component 3 need to be sufficiently large, in operation, can make elastic component 3 in doctorJust it is changed into convex shape from concave shape when rivet nut 1 is dragged outside person in place, sound can be sent during being deformed due to elastic component 3Sound, can play a part of reminding doctor.If simply needing the function of being reminded certainly, elastic component 3 can individually be carriedTake out and use, the function of umbrella shape part 4 is then completed by check sheet 13.Preferably, the draw ring 31 on elastic component 3 can be connected individuallyOne bracing wire, the function of the bracing wire be only to make elastic component 3 deform, after rivet nut 1 in place after, pulling bracing wire makes elastic component3 deformations, drive the state change of umbrella shape part 4, further position of the fixed rivet nut 1 in bone road.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentionedParticular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadowRing the substantive content of the present invention.