CN109864834A - A kind of suture, stitching devices and its application - Google Patents
A kind of suture, stitching devices and its application Download PDFInfo
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- CN109864834A CN109864834A CN201910299068.7A CN201910299068A CN109864834A CN 109864834 A CN109864834 A CN 109864834A CN 201910299068 A CN201910299068 A CN 201910299068A CN 109864834 A CN109864834 A CN 109864834A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- Oral & Maxillofacial Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The present invention provides a kind of suture, stitching devices and its applications；The suture includes: elongate body, including the first free end and the second free end；The first cam pack and the second cam pack being set in elongate body, first cam pack and the second cam pack include at least one cam；The cam includes small end and big end, and the sectional area of the cam small end is less than the sectional area of cam big end；First free extreme direction of the small extreme direction of the cam of first cam pack towards elongate body, the second free extreme direction of the small extreme direction of the cam of second cam pack towards elongate body；The cam outside wall surface is provided at least one engagement strengthening part；Suture cam after penetrating tissue can keep preferable meshing relation with tissue.
Description
Technical field
The invention belongs to medical instruments field, it is related to a kind of suture, stitching devices and its application.
Background technique
Since the factors such as age, environment will lead to human face soft tissue and bone capacity atrophy, ligament starts to relax, shallowly
Table muscular fascia system is gradually sagging, the effect of the relaxation of cheekbone cheek fat pad gravity in addition, facial surface tissue show sagging,
Elasticity attenuation, wrinkle increase, groove forms the performance such as intensification.And with the increase at age, hormone in vivo level changes, glue
The factors such as former protein loss and face's body of gland atrophy make facial expressiveness go out undesirable characteristic variations-aging jointly.
With social progress and development, demand of the people to beauty is also being gradually increased, and is especially needed to the rejuvenation of face
It asks, and has the tendency that increasing year by year, improving and keep facial rejuvenation at present is by special by a kind of Minimally Invasive Surgery by can
Organism-absorbing material prepares silk thread and imports in shallow-layer soft tissue, will be loose by the excellent lifting of silk thread and the effect of mechanics mean allocation
Face's soft tissue of relaxation, which lifts, to be resetted.
Face's different parts can pointedly be lifted, be applied directly to slackness skin.In addition, preparing silk thread
Material is the biodegradable with good biocompatibility, resorbable material, after a period of time, silk thread is by face's group
While knitting degradation absorption, the regeneration of subcutaneous tissue collagen can be stimulated, newborn suporting ligament and elastic fibers is formed, makes
It obtains facial skin and thickens and prevent skin aging.
A kind of suture of barb structure is proposed in US5425747 and US5584859.This " hangnail " structure
Suture is widely applied in medical and beauty treatment surgical operation, and this kind of suture is when puncturing embedment subcutaneous tissue, hangnail opening
Direction and puncture are contrary, and hangnail is in semi-closure conjunction state by the compressing organized, and after puncture, has in suture main line
It falls off when being inclined to, hangnail has engagement to tissue, and multiple hangnails act synergistically, and generating huge resistance prevents suture
It falls off.
A kind of improvement instrument for the purpose of organizing suture is proposed in US7582105, in cosmetic surgery procedures especially
Favorably.A kind of suture with orientation cam-type device is provided, which may be produced that one-way or bi-directional knot
Structure plays the role of engaging tissue, stamps tubercle before and after the silk thread for passing through cam-type device, continuously arranges on silk thread multiple
Cam-type device and tubercle, one cam of a knot are sequentially arranged, before and after first cam and the last one cam to knot more
It saves convex to limit.
Although the suture containing barb structure plays the role of lifting to relaxation skin to a certain extent, contain
The cam of cam-type device suture is substantially better than barb structure, and stimulation and work of the cam to skin to the engagement of tissue
With the time also superior to barb structure.But since inevitably engagement capability is not strong in the tissue for suture line cam, generation and silk
There is a phenomenon where Relative slidings for line.
Therefore it provides it is a kind of avoid puncture enter tissue after cam and the good suture of engagement tissue effect have very much must
It wants.
Summary of the invention
The purpose of the present invention is to provide a kind of suture, stitching devices and its application, the suture can be steady by cam
Fixed is fixed on suture, prevents suture from puncturing the cam for starting to occur in engagement organizational process into tissue and cam
Relative sliding phenomenon occurs with silk thread, thus the problem of avoiding the occurrence of cam offset and unbalance stress, and suture is penetrating
Cam can keep preferable meshing relation with tissue after tissue；For stitching devices when carrying out suturing soft tissue, suture is most
When whole puncture position lifts, appearance and engagement tissue effect poor the problem of leading to not lifting can be avoided.
In order to achieve that object of the invention, the invention adopts the following technical scheme:
One of the objects of the present invention is to provide a kind of suture, the suture includes: elongate body, including first from
By end and the second free end；The first cam pack and the second cam pack being set in elongate body, first cam set
Part and the second cam pack include at least one cam；The cam includes small end and big end, the section of the cam small end
Product is less than the sectional area of cam big end；First freedom of the small extreme direction of the cam of first cam pack towards elongate body
Extreme direction, the second free extreme direction of the small extreme direction of the cam of second cam pack towards elongate body；The cam
Outside wall surface is provided at least one engagement strengthening part.
Suture in the present invention includes elongate body, the first cam pack and the second cam pack, when being sutured
It is able to carry out two-way suture, and suture can play the role of lifting in final puncture position, to play preferable beauty effect
Fruit.
The sectional area of small end is less than the sectional area of cam big end, after cam pack enters tissue, big end pair in the present invention
Tissue can play preferable engagement effect；The cam outside wall surface is provided with engagement strengthening part, wherein engaging strengthening part
Tissue can be tightly engaged, can be fallen off to avoid cam.
In the present invention, towards the small end of the cam to big extreme direction, outside the engagement strengthening part and the cam
The angle of wall surface is α, 10 °≤α≤45 °.
In the present invention, the engagement strengthening part is spicule.
In the present invention, the engagement strengthening part is a plurality of bore spines.
In the present invention, it is described engagement strengthening part be preferably oblique centrum shape bore spine, the cone of bore spine outwardly, bore spine
Bottom surface is contacted with cam-wall, wherein engagement strengthening part and cam outside wall surface angle be oblique centrum cone and oblique centrum bottom surface
The line and cam outside wall surface being centrally formed are formed by angle α, illustrative if engagement strengthening part is regular oblique vertebra
Body, then angle is that engagement strengthening part central axes and cam outside wall surface are formed by angle.
In the present invention, when 10 °≤α≤45 °, then engaging strengthening part and tissue has preferable engagement capability, as α <
10 °, engage strengthening part dehisce it is less than normal, into tissue after be in closed state, even if suture reversely starts stress and falls off
When, engagement strengthening part is also difficult to open automatically and engages tissue；When 45 ° of α >, engagement strengthening part is dehisced excessive, is being entered
Strengthening part is engaged when tissue and is also easy to produce larger resistance, is likely to result in tissue damage.
In the present invention, the big end side of the cam is dentalation.
In the present invention, the big end side of cam is dentalation, can further increase the meshing performance of suture and tissue,
Fit engagement strengthening part collective effect, further increases the engagement capability of suture and tissue, can further avoid cam
Fall off, so as to which suture is consolidated accurate fixation in the tissue, avoiding falling off because of cam influences suture to tissue
Lifting effect.
In the present invention, the dentalation includes at least 3 teeth.
In the present invention, when dentalation includes at least 3 teeth, the engagement capability of cam and tissue can be more preferable.
In the present invention, the wall thickness of the cam most thickness be 0.1-0.9mm, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm,
0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm etc., preferably 0.3mm.
In the present invention, the wall thickness of the cam most it is thin be 0.05-0.2mm, such as 0.05mm, 0.08mm, 0.1mm,
0.12mm, 0.15mm, 0.18mm, 0.2mm etc., preferably 0.09mm.
The sectional area of small end is less than the sectional area of cam big end, after cam pack enters tissue, big end pair in the present invention
Tissue can play preferable engagement effect；There are a space between cam big end of the invention and small end, wall thickness, which refers to, to be enclosed
The wall thickness of the thickness of the cam-wall in the space out, cam reduces along small end to big extreme direction, and wherein the lesser big end of wall thickness is easily tight
Close engagement tissue, can fall off to avoid cam, so that the lifting influenced to tissue acts on.
In the present invention, the shape of the cam hollow space is to contain the tubaeform of hollow space.
The present invention is tubaeform it should be understood that appearance meets the tubaeform standard of broad sense, i.e., from small end to big end cross-sectional area by straight
The structure that line or curve are gradually increased, wherein curve includes concave curve and convex curve.
The cam can also include one section of flat segments, and the sectional area at flat segments both ends is identical, can be cylindrical shape, straight
The sectional area of section is less than or equal to the tubaeform small end cross-sectional area.Flat segments preferably form an entirety with elongate body, to the greatest extent
It is likely to reduced the small Relative sliding of cam and silk thread.
The sectional area of the small end cross-sectional area or flat segments is smaller, and big end cross-sectional area is larger, when elongate body drive is convex
When in wheel assembly puncturing tissue, single cam enters the sequence of tissue for big end after first small end, facilitates access for tissue, and as far as possible
The damage to tissue is reduced, furthermore can also generate preferable engagement to tissue.
In the present invention, the shape of the hollow space is inside trumpet shape, and the inside trumpet shape is along elongate body direction
Length is m, and length of the cam along elongate body direction is s, the 1/4s≤m≤s.
In the present invention, the flat segments also include a hollow interior cylindrical volume (flat segments in also referred to as), interior flat segments edge
The length in elongate body direction is l, and length of the cam along elongate body direction is s, the 1/3s≤l≤2/3s.
In the present invention, the length of s is 1.5-3mm, such as 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 2.8mm, 3mm
Deng, preferably 2.5mm, the i.e. length of l be 0.8-1.6mm, such as 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm,
1.4mm, 1.5mm, 1.6mm etc..
In the present invention, the shape of hollow space is tubaeform (present invention is known as inside trumpet shape), and the hollow space is also
Including flat segments (present invention is known as interior flat segments), the interior flat segments are cylindrical shape, are elongated after the completion of guaranteeing to puncture
The internal flat segments of main body are stressed directly, and avoid elongate body to big end section and the linear stress of small end section circle configurations, interior flat segments
Length be l, cam along elongate body direction length be s, 1/3s≤l≤2/3s；As the length l < 1/3s of interior flat segments,
Then interior flat segments are not obvious the relaxation effect of linear stress；As the length l > 2/3s of interior flat segments, then interior flat segments account for convex
The specific gravity for taking turns length is excessively high, influences cam to the engagement of tissue.
In the present invention, the loudspeaker angle of the hollow space inside trumpet shape is δ, wherein 20 °≤δ≤120 °.
The present invention passes through the loudspeaker angle of control hollow space horn opening section, so as to adjust flat segments in hollow space
Distance, thus preferably mesh control effect, when 20 ° of loudspeaker angle δ <, the opening of open section is smaller, big end and end diameter
Differ smaller, after implanting tissue, big end can not tightly engage tissue, cam easily occur and slide phenomenon, and lifting operation is caused to be lost
It loses；When 120 ° of δ >, the opening of open section is larger, then outside diameter is excessive, and during implanting tissue, receiving resistance is larger, easily
Pull tissue.
In the present invention, first cam pack and the second cam pack are symmetrically distributed in elongate body midpoint two sides.
In the present invention, the cam number of first cam pack and the second cam pack is identical.
In the present invention, the distance in first cam pack and the second cam pack between adjacent cams is identical.
In the present invention, the cam number of first cam pack is 4.
In the present invention, the distance in first cam pack between adjacent cams be 3-10mm, such as 3mm, 4mm,
5mm, 6mm, 7mm, 8mm, 9mm, 10mm etc..
In the present invention, the cam number of second cam pack is 4.
In the present invention, the distance in second cam pack between adjacent cams be 3-10mm, such as 3mm, 4mm,
5mm, 6mm, 7mm, 8mm, 9mm, 10mm etc..
In the present invention, the cam and elongate body are limited by locating part.
In the present invention, the locating part is knot.
In the present invention, the knot is greater than the aperture of cam small end in the diameter perpendicular to elongate body length direction.
In the present invention, the cam and elongate body are fixed by heat-sealing.
In the present invention, cam and elongate body are limited by locating part, on the one hand can guarantee elongate body and cam
Stability, avoid the occurrence of Relative sliding, further aspect is that into after tissue, after the position of cam is fixed, elongated master
Body can also navigate to fixed position, play the role of preferable lifting.
In the present invention, the elongate body is sub-thread silk thread.
In the present invention, the elongate body and cam pack are degradation material.
In the present invention, the degradation material includes that synthesis class degradable high polymer material and/or natural degradable are high
Molecular material.
In the present invention, the synthesis class degradable high polymer material includes polylactic acid, l-polylactic acid, DL- polylactic acid, gathers
Second lactide copolymer, polycaprolactone, polyhydroxybutyrate valerate, polyacetylglutamic acid, polyorthoesters, polyethylene glycol oxide/polybutene
Copolymer or polylactide are total to the combination of any one or at least two in caprolactone copolymer.
In the present invention, the natural biodegradable polymer material includes collagen, gelatin, chitosan, hyaluronic acid, seaweed
In sour sodium or agarose any one or at least two combination.
The second object of the present invention is to provide a kind of stitching devices, and the stitching devices include seam described in the first purpose
Zygonema and made of metal needle body positioned at suture both ends.
Stitching devices can carry out two-way suture, can rise after suture when carrying out tissue suture in the present invention
It is acted on to lifting, to reach preferable beauty or therapeutic effect.
Stitching devices are suitable for wound closure in the present invention, and tissue tenses, tissue scaffold, suspension and fixation procedure.
The third object of the present invention is to provide a kind of answering in tissue suture of the stitching devices as described in the second purpose
With.
Compared with the existing technology, the invention has the following advantages:
Cam and tissue have preferable engagement capability in suture in the present invention, and suture can be stablized to accurate fixation
Organizationally, cam is stably fixed on suture by this external enwergy, prevents suture from starting in puncture into tissue and cam
Relative sliding phenomenon by a relatively large margin occurs for the cam and silk thread that occur in engagement organizational process, to avoid the occurrence of cam offset
And the problem of unbalance stress；For stitching devices when carrying out suturing soft tissue, suture, can when final puncture position lifts
Avoid the occurrence of the problem of cam offset leads to not lifting and cam unbalance stress.
Detailed description of the invention
Fig. 1 is the schematic diagram of suture in embodiment；
Fig. 2 is the main view of cam pack in embodiment；
Fig. 3 is the main view of cam pack convexity wheel in Fig. 2；
Fig. 4 is the perspective view of cam structure in embodiment 1；
Fig. 5 is the perspective view of another angle of cam structure in embodiment 1；
Fig. 6 is the perspective view of cam structure in embodiment 2；
Fig. 7 is the perspective view of another angle of cam structure in embodiment 2；
Fig. 8 is the perspective view of cam structure in embodiment 3；
Fig. 9 is the perspective view of another angle of cam structure in embodiment 3；
Figure 10 is the perspective view of cam structure in embodiment 4；
Figure 11 is the perspective view of another angle of cam structure in embodiment 4；
Wherein, 1 is elongate body, and 2 be the first free end, and 3 be the second free end, and 4 be the first cam pack, and 5 be second
Cam pack, 6 be cam, and 7 be small end, and 8 be big end, and 9 be engagement strengthening part, and 10 be dentalation.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
Present embodiment provides a kind of suture, and as shown in Fig. 1 and Fig. 2, the suture includes: elongate body 1, wherein
Elongate body 1 includes the first free end 2 and the second free end 3；The first cam pack 4 and second being set in elongate body 1
Cam pack 5, wherein the first cam pack 4 and the second cam pack 5 include at least a cam 6；And combine Fig. 3, cam 6
Including small end 7 and big end 8, the sectional area of 6 small end 7 of cam is less than the sectional area of 6 big end 8 of cam；The cam of first cam pack 4
Direction of 7 direction of small end towards the first free end 2 of elongate body 1, the 7 direction court of small end of the cam of the second cam pack 5
To the direction of the second free end 3 of elongate body 1；6 outside wall surface of cam is provided with engagement strengthening part 9, along the small of the cam 6
End 7 is to 8 direction of big end, from the figure 3, it may be seen that the engagement strengthening part 9 and the angle of 6 outside wall surface of cam are α, 10 °≤α≤
45°。
Elongate body is preferably sub-thread silk thread in present embodiment, and sub-thread silk thread has lesser diameter and preferable tough
Property, be convenient for tissue suture, wherein the concrete conditions such as the diameter of silk thread, toughness, number of plies those skilled in the art according to
Actual needs is adjusted；Elongate body, the first cam pack and the second cam pack are Biodegradable material, optional
Biodegradation material includes polylactic acid, l-polylactic acid, DL- polylactic acid, poly (glycolide-lactide) copolymer, polycaprolactone, poly- hydroxyl
Base amyl butyrate, polyacetylglutamic acid, polyorthoesters, polyethylene glycol oxide/polybutene copolymer, polylactide are total to caprolactone copolymer
In collagen, gelatin, chitosan, hyaluronic acid, sodium alginate or agarose any one or at least two combination, it is specific to select
Selecting which kind of material those skilled in the art can be adjusted according to actual needs；Suture is after suture in present embodiment
Inside of human body is stayed in, selects Biodegradable material that can degrade in human body, side effect will not be produced to human body.
The number of cam is at least one in the first cam pack and the second cam pack in present embodiment, preferably 4,
Wherein number those skilled in the art of cam are adjusted according to actual needs；In first cam pack and the second cam pack
Distance between adjacent cams is 3-10mm, and specific setting those skilled in the art can be adjusted according to actual needs, and first
Cam pack and the second cam pack are symmetrically distributed in the two sides at elongate body midpoint, convenient for suture when suture enter tissue
Interior and cam reaches preferable engagement effect.
In present embodiment, cam includes small end and big end, wherein the small one end of sectional area is known as small end, and sectional area is big
One end is known as big end, wherein the small end of the first cam pack is towards the first free end of elongate body, the second cam pack it is small
End is towards the second free end of elongate body, and convenient in carrying out two-way puncture process, the small end of cam pack is towards elongated master
The free end of body will not cause compared with macrolesion tissue convenient for puncturing；The sectional area of cam small end is less than the section of big end
Product, wherein sectional area those skilled in the art of small end and big end can be adjusted according to actual needs.
In present embodiment, towards cam small end to big extreme direction, the folder of strengthening part and the cam outside wall surface is engaged
Angle is α, wherein engagement strengthening part and the angle α of cam outside wall surface are that the cone of oblique centrum and oblique centrum bottom center are formed
Line and cam outside wall surface be formed by, illustrative such as the oblique centrum that engagement strengthening part is rule, then angle is engagement
Strengthening part central axes and cam outside wall surface are formed by angle, wherein 10 °≤α≤45 °, then engage strengthening part and tissue tool
There is preferable engagement capability, selection those skilled in the art of specific α value can be adjusted according to actual needs；When 10 ° of α <,
Dehiscing for engagement strengthening part is less than normal, into tissue after be in closed state, even if suture reversely starts stress when falling off, nibble
Strengthening part is closed also to be difficult to open automatically and engage tissue；When 45 ° of α >, engagement strengthening part dehisce it is excessive, enter tissue when
Engagement strengthening part is also easy to produce larger resistance, is likely to result in tissue damage.
In present embodiment, engagement strengthening part is a plurality of bore spines, excellent with engagement tissue for being pierced into organization internal
Choosing engagement strengthening part is the bore spine of oblique centrum shape, and the specific selection for engaging strengthening part and engagement strengthening part are in cam
Those skilled in the art, which are arranged, in the density of outside wall surface to be adjusted according to actual needs.
In the present invention, the big end side of preferred cam is dentalation, and dentalation includes at least 3 teeth, can be further
Increase the meshing performance of suture and tissue, fit engagement strengthening part collective effect further increases suture and tissue
Engagement capability can further avoid falling off for cam, so as to which suture is consolidated accurate fixation in the tissue, avoid
It influences suture because cam falls off the lifting of tissue is acted on, wherein selection those skilled in the art of dentalation number can root
It is adjusted according to actual needs.
Embodiment 1
In the present embodiment 1, as shown in Figure 4 and Figure 5, the shape of cam be it is hollow tubaeform, i.e., cam be from small end 7 to
The sectional area in 8 direction of big end passes through the structure that straight line is gradually increased, and the outer wall surface of cam is provided with engagement strengthening part 9, nibbles
The shape for closing strengthening part 9 is inclined taper, towards small end 7 to 8 direction of big end, engages central axes and the cam of strengthening part 9
The angle of outside wall surface is 45 °, and cam big end side is dentalation 10, and the number of dentalation 10 is 9.
In the present embodiment when suture is pierced into tissue, cam is convenient for due to being gradually increased from small end to big end cross-sectional area
Into organization internal, and the damage to tissue can be reduced, and cam is in closed form when entering tissue under force
State lifts rope yarn after puncture, and cam structure starts reversed stress, and the dentalation of cam big end side starts to engage
Tissue, and the hangnail on cam also opens engagement tissue under force, to reach preferable engagement effect.
Embodiment 2
In the present embodiment, as shown in Figure 6 and Figure 7, the shape of cam be it is hollow tubaeform, i.e., cam be from small end 7 to
The sectional area in 8 direction of big end passes through the structure that straight line is gradually increased, and the outer wall surface of cam is provided with engagement strengthening part 9, nibbles
The shape for closing strengthening part 9 is inclined taper, towards small end 7 to 8 direction of big end, engages strengthening part 9 and cam outside wall surface
Angle is 30 °, and cam big end side is dentalation 10, and the number of dentalation 10 is 4.
In the present embodiment when suture is pierced into tissue, cam is convenient for due to being gradually increased from small end to big end cross-sectional area
Into organization internal, and the damage to tissue can be reduced, and cam is in closed form when entering tissue under force
State lifts rope yarn after puncture, and cam structure starts reversed stress, the tooth tip of the dentalation of cam big end side
Angle is acute angle, has stronger engagement capability when engaging tissue, and the engagement strengthening part on cam is under force
Engagement tissue is opened, to reach preferable engagement effect.
Embodiment 3
In the present embodiment, as shown in Figure 8 and Figure 9, the shape of cam be it is hollow tubaeform, i.e., cam be from small end 7 to
The sectional area in 8 direction of big end passes through the structure that convex curve is gradually increased, and the outside wall surface of cam is provided with engagement strengthening part 9, nibbles
The shape for closing strengthening part 9 is inclined taper, towards small end 7 to 8 direction of big end, engages strengthening part 9 and cam outside wall surface exists
Being formed by angle with the intersection tangent line of engagement 9 central axes of strengthening part is 10 °, and cam big end side is dentalation
10, the number of dentalation 10 is 5.
It is tubaeform to pass through convex curve from small end to big end cross-sectional area in the present embodiment when suture enters tissue suture
Form is gradually increased, its difficulty for entering tissue can be further decreased, to further decrease the damage to tissue, and cam
When entering tissue, it is in closed state under force, tissue will not be caused to damage in suture, when puncture finishes
Afterwards, rope yarn is lifted, cam structure starts reversed stress, and the dentalation and tissue of cam big end side have stronger engagement energy
Power, and the engagement strengthening part on cam opens engagement tissue under force, to reach preferable engagement effect.
Embodiment 4
In the present embodiment, as shown in Figure 10 and Figure 11, the shape of cam is the triangular pyramidal containing hollow space, from small end
Sectional area to big end is gradually increased by way of straight line, and the outer wall surface of cam is provided with engagement strengthening part 9, and engagement adds
The shape of strong component 9 is inclined taper, towards small end 7 to 8 direction of big end, engages the angle of strengthening part 9 and cam outside wall surface
It is 25 °.
In the present embodiment when suture is pierced into tissue, cam is convenient for due to being gradually increased from small end to big end cross-sectional area
Into organization internal, and the damage to tissue can be reduced, and cam is in closed form when entering tissue under force
State lifts rope yarn after puncture, and cam structure starts reversed stress, three angles of the cam big end of triangular pyramidal shape
Tip easily engages institutional framework, and the hangnail on cam also opens engagement tissue under force, to reach preferable
Engage effect.
In present embodiment, there are a space between cam big end and small end, wall thickness refers to the cam for crossing the space
The thickness of wall, cam small end and the wall thickness of big end can be identical in present embodiment, can also be different, the wall of the small end of preferred cam
Thickness be greater than big end wall thickness, then the lower big end of wall thickness be easy closely engagement tissue after, can falling off to avoid cam, thus
Suture is influenced to act on the lifting of tissue；Wherein the wall thickness of cam most thickness is 0.1-0.9mm, and the wall thickness of cam is most thin to be
How 0.05-0.2mm, the most thick degree of cam-wall 10 and most thin thickness are specifically arranged those skilled in the art can be according to practical need
Be adjusted, preferred cam is tubaeform and one section of flat segments containing hollow space, flat segments and tubaeform small end it is straight
Diameter and sectional area are equal, the tubaeform structure being gradually increased by way of straight line or curve from small end to big end cross-sectional area,
Wherein curve includes concave curve and convex curve；Tubaeform wall thickness is gradually reduced along small end to big extreme direction, and the wall thickness of cam is most
Thickness is 0.1-0.9mm, and most thin is 0.05-0.2mm；Hollow space includes inside trumpet shape, and flat segments also include a hollow interior cylinder
Body (interior flat segments), length of the interior flat segments along 1 direction of elongate body are l, and length of the cam along elongate body direction is s, and l is full
Sufficient 1/3s≤l≤2/3s, as l < 1/3s, then interior flat segments are not obvious the relaxation effect of linear stress；As l > 2/3s, then
The specific gravity that interior flat segments account for cam length is excessively high, influences cam to the engagement of tissue；Inside trumpet shape is from small end to big end side
It is gradually increased to sectional area and by way of straight line or curve, wherein curve includes concave curve and convex curve, inside trumpet shape
The loudspeaker angle δ that small end two sides straight line or curve tangent line are formed, δ meet 20 °≤δ≤120 °, tubaeform by control hollow space
The loudspeaker angle of open section, so as to adjust the distance of flat segments in hollow space, thus preferably mesh control effect, when loudspeaker angle
At 20 ° of δ <, the opening of open section is smaller, and big end and end diameter difference are smaller, and after implanting tissue, big end can not be nibbled closely
It is combined and knits, cam easily occur and slide phenomenon, cause to lift operative failure；When 120 ° of δ >, the opening of open section is larger, then big end
Diameter is excessive, and during implanting tissue, receiving resistance is larger, easy-to-draw injured tissue.
Elongate body, the first cam pack and the second cam pack can be limited by locating part in present embodiment
Position so as to cause cam offset, influences nibbling for tissue and cam for preventing cam pack and silk thread from opposite sliding occurs
Close effect；Wherein locating part can may be other degradable limit materials for knot, at least ensure that the two of each cam
The equal finite place piece in side, then the number of locating part fixes cam at least more than the number of cam convenient for better for two；Wherein limit
Part is greater than the aperture of cam small end perpendicular to the sectional area in elongate body direction, avoids locating part from passing through from cam, influences to limit
The effect of position；Locating part is specifically chosen knot or the specific choosing value of other degradable limit materials or its diameter, this field
Technical staff can be adjusted according to actual needs；In present embodiment, when the hollow structure of cam is tubaeform, preferably carefully
Long main body and cam are fixed together by heat-sealing, can further avoid cam with the relative motion of silk thread to influence to engage effect
Fruit.
Present embodiment also provides a kind of stitching devices, and the stitching devices include suture described above and are located at
The made of metal needle body at suture both ends.
By the way that made of metal needle body is arranged at suture both ends in the present invention, two-way suture, suture knots can be carried out in suture
Shu Hou, lifting elongate body can achieve preferable lifting effect, for tissue suture.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of suture, which is characterized in that the suture includes:
Elongate body (1), including the first free end (2) and the second free end (3)；
The first cam pack (4) and the second cam pack (5) being set on elongate body (1), first cam pack (4)
It include at least one cam (6) with the second cam pack (5)；
The cam (6) includes small end (7) and big end (8), and the sectional area of cam (6) small end (7) is less than cam (6) big end
(8) sectional area；
Small end (7) direction of the cam of first cam pack (4) towards the first free end (2) direction of elongate body (1),
Small end (7) direction of the cam of second cam pack (5) is towards the second free end (3) direction of elongate body (1)；
Cam (6) outside wall surface is provided at least one engagement strengthening part (9).
2. suture according to claim 1, which is characterized in that towards the small end (7) of the cam (6) to big end (8)
The angle of direction, engagement strengthening part (9) and the cam (6) outside wall surface is α, 10 °≤α≤45 °；
Preferably, the engagement strengthening part (9) is spicule；
Preferably, the engagement strengthening part (9) is a plurality of bore spines.
3. suture according to claim 1, which is characterized in that big end (8) side of the cam (6) is dentalation
(10)；
Preferably, the dentalation (10) includes at least 3 teeth.
4. suture according to claim 1 or 2, which is characterized in that the wall thickness most thickness of the cam (6) is 0.1-
0.9mm, preferably 0.3mm；
Preferably, it is 0.05-0.2mm, preferably 0.09mm that the wall thickness of the cam (6) is most thin.
5. suture according to claim 1-3, which is characterized in that the shape of the cam (6) is containing in
Empty part it is tubaeform；
Preferably, the cam (6) further includes flat segments；
Preferably, the shape of the hollow space is inside trumpet shape, and length of the inside trumpet shape along elongate body (1) direction is
M, length of the cam (6) along elongate body (1) direction is s, the 1/4s≤m≤s；
Preferably, the hollow space also includes interior flat segments, and length of the interior flat segments along elongate body (1) direction is l,
Length of the cam (6) along elongate body (1) direction is s, the 1/3s≤l≤2/3s；
Preferably, the loudspeaker angle of the inside trumpet shape is δ, wherein 20 °≤δ≤120 °.
6. suture according to claim 1-5, which is characterized in that first cam pack (4) and second
Cam pack (5) is symmetrically distributed in elongate body (1) midpoint two sides；
Preferably, first cam pack (4) is identical with the cam number of the second cam pack (5)；
Preferably, the distance between first cam pack (4) and adjacent cams (6) in the second cam pack (5) is identical；
Preferably, the cam number of first cam pack (4) is 4；
Preferably, the distance in first cam pack (4) between adjacent cams (6) is 3-10mm；
Preferably, the cam number of second cam pack (5) is 4；
Preferably, the distance in second cam pack (5) between adjacent cams (6) is 3-10mm.
7. suture according to claim 1-6, which is characterized in that the cam (6) and elongate body (1) are logical
Cross locating part limit；
Preferably, the locating part is knot；
Preferably, the locating part is greater than the hole of cam (2) small end (7) in the diameter perpendicular to elongate body (1) length direction
Diameter；
Preferably, first cam pack (4) and the second cam pack (5) and elongate body (1) are fixed by heat-sealing.
8. suture according to claim 1-7, which is characterized in that the elongate body (1) is sub-thread silk thread；
Preferably, the elongate body (1) and cam pack (2) are degradation material；
Preferably, the degradation material includes synthesis class degradable high polymer material and/or natural biodegradable polymer material；
Preferably, the synthesis class degradable high polymer material includes polylactic acid, l-polylactic acid, DL- polylactic acid, poly (glycolide-lactide)
Copolymer, polycaprolactone, polyhydroxybutyrate valerate, polyacetylglutamic acid, polyorthoesters, polyethylene glycol oxide/polybutene copolymer or
Polylactide is total to the combination of any one or at least two in caprolactone copolymer；
Preferably, the natural biodegradable polymer material includes collagen, gelatin, chitosan, hyaluronic acid, sodium alginate or fine jade
In lipolysaccharide any one or at least two combination.
9. a kind of stitching devices, which is characterized in that the stitching devices include the described in any item sutures of claim 1-8 with
And the made of metal needle body positioned at suture both ends.
10. application of the stitching devices according to claim 9 in tissue suture.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910299068.7A CN109864834A (en) | 2019-04-15 | 2019-04-15 | A kind of suture, stitching devices and its application |
| PCT/CN2020/076355 WO2020211527A1 (en) | 2019-04-15 | 2020-02-24 | Suture line, suture device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910299068.7A CN109864834A (en) | 2019-04-15 | 2019-04-15 | A kind of suture, stitching devices and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109864834A true CN109864834A (en) | 2019-06-11 |
Family
ID=66922574
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910299068.7A Pending CN109864834A (en) | 2019-04-15 | 2019-04-15 | A kind of suture, stitching devices and its application |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109864834A (en) |
| WO (1) | WO2020211527A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211527A1 (en) * | 2019-04-15 | 2020-10-22 | 童妍(上海)医疗器械有限公司 | Suture line, suture device and application thereof |
| CN112674906A (en) * | 2020-12-24 | 2021-04-20 | 童妍(上海)医疗器械有限公司 | Lifting wire and preparation method thereof |
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| CN103251433A (en) * | 2006-08-07 | 2013-08-21 | 西露艾特利福特有限公司 | Suture for wound closure, tissue approximation, tissue support, suspension and/ or fixation |
| CN206745401U (en) * | 2016-12-30 | 2017-12-15 | 广州迈普再生医学科技有限公司 | A kind of operation suture thread |
| CN108697419A (en) * | 2015-11-18 | 2018-10-23 | 杰特玛有限公司 | Novel suture line for face lift and body lift |
| CN210582750U (en) * | 2019-04-15 | 2020-05-22 | 易浦润（上海）生物技术有限公司 | Suture line and suturing device |
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| AU2009236330B2 (en) * | 2008-04-15 | 2014-11-27 | Ethicon Llc | Self-retaining sutures with bi-directional retainers or uni-directional retainers |
| EP3225175A1 (en) * | 2016-04-01 | 2017-10-04 | Beauty-Com Biotechnology Co., Ltd | Surgical suture |
| CN206463021U (en) * | 2016-11-15 | 2017-09-05 | 张大宏 | A kind of vesicourethral coincide needlework |
| CN207804289U (en) * | 2017-10-20 | 2018-09-04 | 北京凯诺瑞和医疗器械有限公司 | A kind of new type of cosmetic lifting line |
| CN109864834A (en) * | 2019-04-15 | 2019-06-11 | 易浦润（上海）生物技术有限公司 | A kind of suture, stitching devices and its application |
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2019
- 2019-04-15 CN CN201910299068.7A patent/CN109864834A/en active Pending
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2020
- 2020-02-24 WO PCT/CN2020/076355 patent/WO2020211527A1/en active Application Filing
Patent Citations (4)
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|---|---|---|---|---|
| CN103251433A (en) * | 2006-08-07 | 2013-08-21 | 西露艾特利福特有限公司 | Suture for wound closure, tissue approximation, tissue support, suspension and/ or fixation |
| CN108697419A (en) * | 2015-11-18 | 2018-10-23 | 杰特玛有限公司 | Novel suture line for face lift and body lift |
| CN206745401U (en) * | 2016-12-30 | 2017-12-15 | 广州迈普再生医学科技有限公司 | A kind of operation suture thread |
| CN210582750U (en) * | 2019-04-15 | 2020-05-22 | 易浦润（上海）生物技术有限公司 | Suture line and suturing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211527A1 (en) * | 2019-04-15 | 2020-10-22 | 童妍(上海)医疗器械有限公司 | Suture line, suture device and application thereof |
| CN112674906A (en) * | 2020-12-24 | 2021-04-20 | 童妍(上海)医疗器械有限公司 | Lifting wire and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020211527A1 (en) | 2020-10-22 |
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Effective date of registration: 20200119 Address after: Room 220, Traditional Chinese Medicine Innovation Park, 199 GuoShoujing Road, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 201203 Applicant after: Tongyan (Shanghai) medical equipment Co., Ltd Address before: Room 220, Traditional Chinese Medicine Innovation Park, 199 GuoShoujing Road, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 201203 Applicant before: Yipurun (Shanghai) Biotechnology Co., Ltd. |