CN209644983U - A kind of suture and a kind of medical instrument - Google Patents

Abstract

The utility model discloses a kind of suture and a kind of medical instruments.Suture includes: the flexible filament having a first end and a second end and multiple multijaw barbs from the flexible filament upper process.Using the suture and medical instrument of the utility model, wire body can be enhanced to the active force of tissue, improve and keep intensity.

Description

A kind of suture and a kind of medical instrument

Technical field

The utility model relates to surgery and medical and beauty treatment fields, in particular to it is a kind of for tissue suture, wound closure or For tissue lifting, the suture of fixation and a kind of medical instrument.

Background technique

Suture is a kind of medical instrument for being usually used in being closed wound, ligation and fixing organization in surgical operation.Closely There is a kind of suture with barb in the market in Nian Lai.The barb of suture can catch on the group around barb It knits, allows suture to pass through tissue in one direction, but prevent it from moving in the opposite direction, to provide wire body not The characteristic of sliding.Therefore, this kind of suture with barb using when do not need to knot as conventional medical suture.Separately Outside, this kind of suture draws tissue by the grip of barb, can achieve the purpose that lift tissue, to also be used extensively The medical and beauty treatment fields such as Yu Timei, facial compact, buttock lifting, Mammaplasty.

This kind of suture for having barb is mainly realized by two ways at present.The first is by medical seam Increase block piece in zygonema to realize barb.A kind of group with cone shape is disclosed in 101500495 B of Chinese patent CN Knit the suture of engaged element.These tissue-engaging elements are suspended at the nodule preformed at a predetermined interval in wire body. One kind is disclosed in 102869818 B of Chinese patent CN passes through hot pressing solid phase forming method under the conditions of specific temperature and pressure Heating squeezes the raw material of suture, prepares a kind of microdont suture of surface tool.This kind of suture is due to whole increase The cross-sectional area of suture, therefore in insertion tissue, it may cause bigger damage and feeling of pain.

Second is to be cut into barb in the structure of original suture.It is disclosed in 1925795 B of Chinese patent CN The construction of such barb and its distribution mode in wire body.Above-mentioned barb is disclosed in 1322840 C of Chinese patent CN Cutting method.The advantage of this kind of barb is only to drag along the opposite direction of insertion when pulling suture, these barbs are It can open, catch tissue, prevent wire body inverse sliding.Barb is related with its depth of cut to " grip " of tissue, because of depth of cut Deeper, barb is along perpendicular to bigger with the active area of tissue in suture direction of insertion, holding intensity obtained It is bigger.However, the wire body that depth of cut is excessively increased again may cause cut portion is meticulous, and reduce the anti-tensile of suture Intensity is easily torn when to causing line traction.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of suture and a kind of medical instrument, Neng Gouzeng Strong wire body improves to the active force of tissue and keeps intensity.

In order to solve the above-mentioned technical problem, the utility model provides a kind of suture, comprising: have first end and The flexible filament of second end and multiple multijaw barbs from the flexible filament upper process, wherein on the flexible filament The opening direction of multiple multijaw barbs is towards the first end or towards second end；Alternatively, opening is towards described the The multijaw barb of one end is disposed in proximity at the second end, and the multijaw barb being open towards the second end is arranged At the close first end, so that the flexible filament respectively can stitch tissue from the first end and second end It closes.

Preferably, the multijaw barb is by forming at least one for protecting on the monodactyle barb on the flexible filament It holds the protrusion of tissue and is formed.

Preferably, the multijaw barb be set as the monodactyle barb being cut on the flexible filament tip and/ Or two sides carry out being cut to double pawl styles of the shoe, three-jaw style of the shoe or palmate leaf structure again；Or the multijaw barb setting It carries out being cut to y type bifurcation structure again for the lateral surface for the monodactyle barb being cut on the flexible filament.

Preferably, the multijaw barb for being located at the same section of the flexible filament is in 180 °, 120 ° between each other Or 60 °.

Preferably, multiple multijaw barbs are twist arranged on the flexible filament.

Preferably, the multijaw barb is using one of machine cuts, laser cutting, injection molding or punching press or a variety of sides Formula is formed.

Preferably, the flexible filament is by collagen, polydioxanone, polylactic acid, polyglycolic acid, poly- oneself hands over One of ester, natural silk, metal, metal alloy, polypropylene, polyester, polyamide are made；Or by poly- to dioxocyclohex Ketone, polylactic acid, polyglycolic acid and at least two copolymers formed gathered in own lactide are made；Or by polypropylene, polyester, poly- At least two copolymers formed or blend in amide are made.

Preferably, the cross-sectional shape of the flexible filament is circle, ellipse, triangle, diamond shape, square, length Rectangular, trapezoidal or polygon.

The invention also discloses a kind of medical instruments comprising sewing needle, injection needle or guid needle further include above-mentioned Suture, the first end and/or second end of the suture connect with the sewing needle；The suture It is set to the injection needle；The suture is set in the guid needle.

Compared with prior art, the suture of the utility model and the beneficial effect of medical instrument are: due to more There are pawl barb multiple protrusions it is strong can to obtain bigger holding to increase the active area of suture and tissue Degree.

Detailed description of the invention

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

Fig. 2 is the sectional view of Fig. 1；

Fig. 3 is the structural schematic diagram of the suture of second embodiment of the utility model；

Fig. 4 is the structural schematic diagram of the suture of the utility model third embodiment；

Fig. 5 is the sectional view of Fig. 4；

Fig. 6 is the structural schematic diagram of the suture of the 4th embodiment of the utility model；

Fig. 7 is the sectional view of Fig. 6；

Fig. 8 is the two-dimensional structure schematic diagram of the multijaw barb of Fig. 1；

Fig. 9 is the schematic diagram of the cutting method of multijaw barb shown in Fig. 8；

Figure 10 is the schematic diagram that multijaw barb shown in Fig. 8 is cut into using gang tool；

Figure 11 is the structural schematic diagram of the suture of the 5th embodiment of the utility model；

Figure 12 is the structural schematic diagram of the suture of the 6th embodiment of the utility model；

Figure 13 is the structural schematic diagram of the suture of the 7th embodiment of the utility model；

Figure 14 is the structural schematic diagram of the suture of the 8th embodiment of the utility model；

Figure 15 is the structural schematic diagram of the suture of the 9th embodiment of the utility model.

Description of symbols: 1- flexible filament；2- multijaw barb；3- first end；4- second end；5- gang tool；6- is prominent It rises.

Specific embodiment

The suture of the utility model and medical instrument are made in the following with reference to the drawings and specific embodiments further detailed Thin description, but not as the restriction to the utility model.

With reference to Fig. 1-Figure 15, the utility model discloses a kind of suturees comprising: there is first end 3 and second The flexible filament 1 at end and multiple multijaw barbs 2 (referring to Fig. 8, Figure 11-Figure 15) from 1 upper process of flexible filament.Wherein, more Pawl barb 2 and the difference of monodactyle barb commonly used in the prior art be, multijaw barb 2 has multiple protrusions 6, and monodactyle barb With a protrusion 6.The size of the protrusion 6 that the multijaw barb 2 of the utility model has and the angle of relative flexibility long filament 1 are not Limit, the sharpness at the tip of protrusion 6 is unlimited, can have certain radian or has wedge angle, in addition, more on flexible filament 1 The opening direction of a multijaw barb 2 is identical, so that " grip " organized due to 2 Duis of multijaw barb, can prevent medical seam Zygonema is moved towards the opening direction of multijaw barb 2 in the tissue, that is, suture along multijaw barb 2 opening direction Opposite direction can easily pass through tissue, and very big resistance will be will receive again by moving along the opening direction of multijaw barb 2. Wherein, distribution of multiple multijaw barbs 2 on flexible filament 1 is unrestricted, can be symmetrical, is also possible to asymmetry Distribution.In addition, suture in addition to including multiple multijaw barbs 2, can also include multiple monodactyle barbs, multiple monodactyle barbs It can be interspersed on flexible filament 1 with multiple multijaw barbs 2.

A kind of suture disclosed by the utility model, since multijaw barb 2 has multiple protrusions 6, to increase The active area of suture and tissue can obtain bigger holding intensity.

In one embodiment, multijaw barb 2 is by forming at least one for protecting on the monodactyle barb on flexible filament 1 It holds the protrusion 6 of tissue and is formed, it is single without increasing since multijaw barb 2 is formed on the basis of monodactyle barb Depth of the pawl barb on flexible filament 1, so that the flexible filament 1 of suture will not be meticulous, so as to not increase On the basis of the tensile strength of suture, the active area of suture and tissue is increased, so as to obtain more Big holding intensity.In addition, multijaw barb 2 can also be formed by other modes, it is not limited solely to only by monodactyle barb On the basis of processed and formed.

Wherein, the generation type of multijaw barb 2 can be using one of machine cuts, laser cutting, injection molding or punching press Or various ways are formed, specifically, can be integrally formed multijaw barb 2 by gang tool, laser or model, or are passed through Multiple cutting, injection molding, punching press or their combination form multijaw barb 2.

Specifically, first solid line is cut on flexible filament 1 along figure as shown in figure 9, the cross section of flexible filament 1 is circle Cut, the point of a knife of cutter towards flexible filament 1 central axis, then along figure dotted line is cut into barb and forms double pawl style of the shoe structures Multijaw barb 2.Furthermore it is also possible to be realized by modes such as gang tool 5 (referring to Figure 10) or combination lasers.Wherein, it combines Cutter 5 has orthogonal two blade portions.

In one embodiment, multijaw barb 2 be set as the monodactyle barb being cut on flexible filament 1 tip and/ Or two sides carry out being cut to double pawl styles of the shoe (with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6, Fig. 7 or Fig. 8), three-jaw style of the shoe again (referring to Figure 11) or palmate leaf structure (referring to Figure 12 or Figure 13), can be carry out one when wherein cutting to monodactyle barb Secondary cutting is repeatedly cut.With reference to Fig. 8, double pawl style of the shoe structures of formation include two protrusions 6, and two protrusions 6 are substantially in " M " type.

With reference to Figure 11, the three-jaw style of the shoe structure of formation includes three protrusions 6, three 6 laid out in parallel of protrusion, three protrusions 6 Length can be the same or different.Wherein, the method for forming the multijaw barb 2 of three-jaw style of the shoe structure, specifically can be, first Two knives are cut along V-shape on the outer surface of flexible filament 1, the centerline parallel of V-shape is in the central axis of flexible filament 1, then edge The crosspoint of V-shape cuts out barb to opening direction.Above-mentioned steps can also use the modes such as gang tool or combination laser reality It is existing.

With reference to Figure 12 and Figure 13, the palmate leaf structure of formation may include symmetric form palmate leaf structure and asymmetrical type The multijaw barb 2 of palmate leaf structure, palmate leaf structure is similar to palmate leaf.Wherein, the more of palmate leaf structure are formed The method of pawl barb 2, specifically can be, and be formed and carrying out cutting or cutaway portion structure at the edge of monodactyle barb.

Due to the tension force effect of flexible filament 1, when being cut again to monodactyle barb, the part after cutting is divided each other It opens, original monodactyle barb is made to separate more spines or sawtooth, that is, form multiple protrusions 6, the protrusion 6 of formation can make Multijaw barb 2 is whole to catch larger range of surrounding tissue, improves the ability of 2 anchored tissue of multijaw barb, improves and further The holding intensity of tissue.

In another embodiment, with reference to Figure 15, the monodactyle that multijaw barb 2 is set as being cut on flexible filament 1 is fallen The lateral surface of hook carries out being cut to y type bifurcation structure again, and as viewed from the side of multijaw barb 2, multijaw barb 2 is whole to be in " y " type.Wherein, the method for forming the multijaw barb 2 of y type bifurcation structure, specifically can be, by first monodactyle barb It is cut into second monodactyle barb again and is formed.

In one embodiment, with reference to Fig. 2, the arrangement mode of multiple multijaw barbs 2 on flexible filament 1 be can be, position Multijaw barb 2 in the same section of flexible filament 1 is in 180 °, 120 ° or 60 ° etc. between each other.

In another embodiment, with reference to Fig. 4-Fig. 7, multiple multijaw barbs 2 are twist arranged on flexible filament 1. Further, the axial direction along flexible filament 1 is looked, multiple multijaw barbs 2 on this flexible filament 1 between each other in 180 °, 120 ° or 60 ° etc..

The opening direction of multijaw barb 2 in suture can be both facing to first end 3, or both facing to second end 4. In addition, since suture may need to be sutured from both ends, in one embodiment, with reference to Fig. 3, opening is towards the The multijaw barb 2 of one end 3 is disposed in proximity at second end 4, and the multijaw barb 2 being open towards second end 4 is disposed in proximity to first It holds at 3, so as to be sutured respectively to tissue from first end 3 and second end 4.

In above-described embodiment, flexible filament 1 can be made of absorbable material or nonabsorable material.For example, flexible long Silk 1 can by collagen, polydioxanone, polylactic acid, polyglycolic acid, one of gather the absorbable materials such as own lactide It is made；Or by polydioxanone, polylactic acid, polyglycolic acid and gather at least two shapes in the absorbable materials such as own lactide At copolymer be made；In addition, flexible filament 1 can also be by natural silk, metal, metal alloy, polypropylene, polyester, polyamides One of nonabsorables material such as amine is made；Or by least two in the nonabsorables material such as polypropylene, polyester, polyamide The copolymer or blend that kind is formed are made.The cross-sectional shape of flexible filament 1 can be circle, ellipse, triangle, water chestnut Shape, square, rectangle, trapezoidal or polygon.

The invention also discloses a kind of medical instrument (not shown)s comprising sewing needle, injection needle or guiding Needle, further includes above-mentioned suture, and the first end 3 and/or second end 4 of suture are connect for outer with sewing needle Section's suture；Suture is set to injection needle for lifting compact skin in medical and beauty treatment operation；Suture is set to For lifting compact skin in medical and beauty treatment operation in guid needle.

Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new In the protection scope of type.

Claims (9)

1. a kind of suture characterized by comprising the flexible filament that has a first end and a second end and it is multiple from The multijaw barb of the flexible filament upper process, wherein the opening direction of multiple multijaw barbs on the flexible filament Towards the first end or towards second end；Alternatively, the multijaw barb of opening towards the first end is set to and leans on At the nearly second end, the multijaw barb being open towards the second end is disposed in proximity at the first end, so that institute Stating flexible filament respectively can suture tissue from the first end and second end.

2. suture according to claim 1, which is characterized in that the multijaw barb is by the flexible filament Monodactyle barb on formed at least one for keep tissue protrusion and formed.

3. suture according to claim 1 or 2, which is characterized in that the multijaw barb is set as described soft Property long filament on the tip of monodactyle barb that is cut into and/or two sides carry out being cut to again double pawl styles of the shoe, three-jaw style of the shoe or Palmate leaf structure；Or the multijaw barb is set as the lateral surface for the monodactyle barb being cut on the flexible filament again It is secondary to carry out being cut to y type bifurcation structure.

4. suture according to claim 1, which is characterized in that the institute positioned at the same section of the flexible filament Stating multijaw barb between each other is in 180 °, 120 ° or 60 °.

5. suture according to claim 1, which is characterized in that multiple multijaw barbs are in the flexible filament On twist arrange.

6. suture according to claim 1, which is characterized in that the multijaw barb uses machine cuts, laser One of cutting, injection molding or punching press or various ways are formed.

7. suture according to claim 1, which is characterized in that the flexible filament is by collagen, poly- to two Oxygen cyclohexanone, polylactic acid, polyglycolic acid, gather own lactide, natural silk, metal, metal alloy, polypropylene, polyester, in polyamide One kind be made.

8. suture according to claim 1, which is characterized in that the cross-sectional shape of the flexible filament is circle Shape, ellipse, triangle, diamond shape, square, rectangle, trapezoidal or polygon.

9. a kind of medical instrument, which is characterized in that including sewing needle, injection needle or guid needle, wherein further include claim 1- Suture described in any one of 8, the first end and/or second end of the suture and the sewing needle connect It connects；The suture is set to the injection needle；The suture is set in the guid needle.