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WO2018117305A1 - Dispositif de fabrication de suture médicale et procédé de fabrication de suture - Google Patents

Dispositif de fabrication de suture médicale et procédé de fabrication de suture Download PDF

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Publication number
WO2018117305A1
WO2018117305A1 PCT/KR2016/015147 KR2016015147W WO2018117305A1 WO 2018117305 A1 WO2018117305 A1 WO 2018117305A1 KR 2016015147 W KR2016015147 W KR 2016015147W WO 2018117305 A1 WO2018117305 A1 WO 2018117305A1
Authority
WO
WIPO (PCT)
Prior art keywords
suture
manufacturing
pressure roller
forming
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/015147
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English (en)
Korean (ko)
Inventor
장민서
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jworld Co Ltd
Original Assignee
Jworld Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jworld Co Ltd filed Critical Jworld Co Ltd
Priority to PCT/KR2016/015147 priority Critical patent/WO2018117305A1/fr
Publication of WO2018117305A1 publication Critical patent/WO2018117305A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/04—Surgical instruments, devices or methods for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J3/00—Modifying the surface
    • D02J3/02—Modifying the surface by abrading, scraping, scuffing, cutting, or nicking

Definitions

  • the present invention relates to a suture manufacturing apparatus and a suture manufacturing method used in surgical operations, and more particularly, to a suture manufacturing apparatus and a suture manufacturing method capable of producing a medical suture with excellent flexibility and excellent tensile strength and elongation. .
  • tissue sutures using barbed sutures in which barbed sutures were cut out of the sutures to form barbs, were used to finish the sutures without tying the sutures.
  • These barbed sutures form one or more barbed protrusions along the surface of the suture at regular intervals.
  • the sutures are inserted in one direction and pulled with tension in the opposite direction, the barbs placed on the surface of the suture are firmly adhered to the tissue. Unlike sutures that do not need to be knotted.
  • Korean Patent No. 10-1057377 discloses a medical suture having a fine protrusion on a surface thereof and a method of manufacturing the same, and accordingly, when the medical suture is manufactured, the medical suture yarn itself is used as a raw material, and below the melting point in the outflow mold.
  • the heat compression solid-state molding method which is manufactured under the temperature conditions and the constant pressure conditions more than transition temperature is taken.
  • the suture of the suture is heated by heating, and when the shrinkage occurs, the crystallinity increases, the elastic force decreases, and the suture loses the orientation because the suture is compressed under a constant pressure condition. Accordingly, since the tensile force is lowered as a whole and is generally compressed in the vertical direction of the alignment direction, the orientation of the molecules is dispersed during the compression and restoration process, and thus the suture is split.
  • US Pat. No. 8,216,497 discloses a method of manufacturing barbs by processing with a raw material in the form of a preform, but there is no mention of a method of manufacturing a preform, and no detailed description of the manufacturing process is given. As a result, the feasibility of the technology is ambiguous and it is currently not commercialized and commercially available.
  • an object of the present invention is to provide a medical suture manufacturing apparatus and suture manufacturing method having a barbed projection having orientation and flexibility.
  • a suture supply unit for supplying a suture to which a medical suture spool is mounted;
  • a preheater for heating the suture to a predetermined temperature;
  • a pressurizing roller unit for pressurizing the heated suture on the upper and lower surfaces;
  • a die cut mold part which presses the pressurized suture on upper and lower surfaces to form cutting lines on both sides of the suture along a longitudinal direction;
  • a twister unit twisting the suture continuously by applying rotational force to the suture;
  • a suture winding unit for winding a suture having a barbed protrusion formed by the twister unit;
  • a tensioner disposed at a front end of the preheating part and a rear end of the pressing roller part to impart a constant tension to the suture;
  • a cutting part disposed between the die cut mold part and the suture winding part to cut the suture such that the suture is wound to a predetermined length.
  • the die cut mold part includes a cutting member at an upper mold and a lower mold.
  • the cutting line formed by the die cut molding unit is suture manufacturing apparatus, characterized in that continuously spaced apart at regular intervals in a state inclined at a predetermined angle toward one direction or both directions.
  • suture manufacturing apparatus according to the above 1, wherein the suture supplied from the suture supply unit is continuously supplied to the preheating unit, the pressure roller unit, the die cut mold unit, the twister unit and the winding unit.
  • the second pressure roller is more suture than the first pressure roller Pressurizing
  • the third pressure roller is suture manufacturing apparatus, characterized in that for pressing the suture more than the second pressure roller.
  • suture manufacturing apparatus wherein the suture line on both sides of the suture and the through-hole of the suture central axis is formed to cross each other, suture manufacturing apparatus.
  • the suture manufacturing apparatus further comprises a through-hole forming portion for forming a plurality of through-holes continuously formed spaced apart at regular intervals on the suture's central axis.
  • suture manufacturing apparatus 8. according to the above 6, wherein the suture line of the suture both sides and the through-hole of the suture central axis is formed to cross each other, suture manufacturing apparatus.
  • the suture raw material is polydioxanone (polydioxanone), polylactic acid (poly- (l-lactic)), polyglycolic acid (poly-glycolic acid), polycaprolactone (polycaprolactone) and Suture manufacturing apparatus, characterized in that the bioabsorbable medical polymer material made of any one selected from these copolymers.
  • suture raw material is a bio-non-absorbent medical polymer material made of any one selected from polypropylene (polyprophylene), nylon (nylon), and mixtures thereof.
  • a suture manufacturing method using a suture manufacturing apparatus comprising the steps of heating a medical suture raw material at a set temperature conditions; Pressing the heated suture through three steps to press molding; Pressing the press-molded suture on the upper and lower surfaces to form cutting lines on the upper and lower surfaces of the suture; And applying a tensile force and a rotational force to the suture in which the cutting line is formed to form a suture having a barbed protrusion.
  • the cutting line includes a suture along the longitudinal direction of the suture.
  • Suture manufacturing method characterized in that the spaced apart at a predetermined interval in a state inclined at a predetermined angle toward one side or both directions on both sides continuously.
  • the pressure over the three steps, the first step and the second step is to press the suture more than the first step
  • the third step is to press the suture more than the second step Suture production method characterized in that.
  • the crystallinity is lower than that of the preform having the orientation characteristics obtained through the injection molding method, and thus the flexibility and excellent tensile strength and elongation can be obtained.
  • FIG. 1 is a configuration diagram schematically showing a suture manufacturing apparatus according to an embodiment of the present invention.
  • Figure 2 is a block diagram showing a pressure roller portion of the suture manufacturing apparatus according to the present invention.
  • Figure 3 is an exemplary view showing a process in which the pressure roller portion of the suture manufacturing apparatus according to the present invention sequentially compress the suture.
  • FIG. 4 is a view showing a suture formed with cutting lines in accordance with the present invention.
  • FIG. 5 is a flow chart showing a suture manufacturing method according to the present invention.
  • FIG. 6 is a schematic view showing a suture manufacturing apparatus provided with a heating wire in the pressure roller unit according to another embodiment of the present invention.
  • FIG. 7 is a configuration diagram schematically illustrating an example in which a cutting line for forming a through hole and a cutting line for forming a barb are alternately formed according to an embodiment of the present invention.
  • FIG. 1 is a configuration diagram schematically showing a suture production apparatus according to an embodiment of the present invention
  • Figure 2 is a configuration diagram showing a pressure roller portion of the suture production apparatus according to the present invention
  • Figure 3 is a suture production apparatus according to the present invention
  • Figure 4 is an exemplary view showing that the pressing roller portion of the suture is sequentially compressed
  • Figure 4 is a top view showing that the cutting line formed by the die cut mold portion of the suture manufacturing apparatus according to the present invention.
  • FIG. 5 is a flowchart showing a suture manufacturing method of the present invention.
  • the suture manufacturing apparatus 10 is a suture supply unit 100, preheating unit 200, pressure roller unit 300, die cut mold 400, twister portion 500 and suture It may be configured to include a winding portion 600, the cutting line formed by the die cut mold 400 is formed in a state inclined at a predetermined angle toward one direction or both directions, spaced at regular intervals and continuous Characterized in that formed.
  • the medical suture raw material is heated at a melting point below the melting point or above the glass transition temperature (S101), for example, the suture raw material may be supplied through the suture supply unit 100 to be heated through the preheating unit 200.
  • the suture supply unit 100 is a medical suture spool is mounted to supply the suture, the suture supplied from the suture supply unit 100, the preheating unit 200, the pressure roller unit 300, die cut mold The part 400, the twister 500, and the winding part 600 may be continuously supplied.
  • the suture manufacturing apparatus presses the pressurized suture on the upper and lower surfaces to form cutting lines on both sides of the suture along the longitudinal direction, and at the same time spaced apart from the central axis of the suture along the longitudinal direction. And a die cut mold part which forms cutting lines for forming a plurality of through holes continuously formed.
  • the suture manufacturing apparatus may further include a through hole forming portion for forming a cutting line for forming a plurality of through holes continuously spaced apart at regular intervals on the suture's central axis.
  • the through hole forming portion may be located between the die cut mold portion and the twister portion.
  • the suture manufacturing apparatus forms a cutting line for forming a through hole as described above
  • the cutting line and the length for forming a through hole continuously spaced apart at regular intervals on the central axis of the suture along the longitudinal direction.
  • Cutting lines formed on both sides of the suture along the direction may be formed to cross each other.
  • the staggered form means that the n-th cutting line formed on either side of the cutting lines formed on both sides of the suture is formed with a cutting line for forming a hole formed in the central axis of the suture, and the n + 1th cutting adjacent to the same side along the length direction It means to be located between the lines.
  • An embodiment of staggered cutting line formation according to the present invention is shown in FIG. 7. In the case of forming the cut lines as described above, the maximum distance between the cut lines can be ensured to prevent the suture from being lowered despite the formation of the through holes.
  • the spacing between the aperture and the edge of the suture may be between 50 ⁇ m and 1000 ⁇ m.
  • it may be 50 ⁇ m to 500 ⁇ m, 50 ⁇ m to 300 ⁇ m, 100 ⁇ m to 500 ⁇ m, 200 ⁇ m to 800 ⁇ m, and the like, and for example, 50 ⁇ m to 300 ⁇ m.
  • the interval between any one of the holes and the adjacent holes may be 300 ⁇ m or more, preferably 500 ⁇ m or more.
  • the sutures formed with the through-holes manufactured using the manufacturing apparatus of the present invention have the effect of removing the wrinkles by lifting the skin by inducing the surrounding tissue cells of the sutures inserted into the skin to grow into the through-holes of the sutures to form new tissues in the skin. It has the effect of lasting semi-permanently.
  • the suture produced by the manufacturing method of the present invention has the advantage that the strength of the suture is not significantly reduced, including a barb and through holes.
  • the suture raw material constituting the medical suture of the present invention is a bioabsorbable medical polymer, specifically, for example, polydioxanone, poly-l-lactic acid, polyglycolic acid
  • Bio-absorbable medical sutures may be manufactured when a bio-absorbable medical polymer including any one selected from poly-glycolic acid, polycaprolactone, and copolymers thereof is used.
  • the suture raw material constituting the medical suture of the present invention is a bio-absorbable medical polymer, specifically, for example, polypropylene, nylon (nylon) and mixtures thereof may be selectively used.
  • the bioabsorbable medical suture may be manufactured.
  • the preheating unit 200 is for heating the supplied suture to a set temperature, it may be any one of two forms as will be described later.
  • the preheater 200 may be manufactured, for example, in the form of a cylinder, and a heating wire inside the wall of the preheater is installed to adjust the temperature of the preheater to a required temperature through a temperature controller. Can be.
  • the heating wires 311, 321, and 331 capable of heating inside the pressurizing roller unit 300 to be described below may be installed to adjust the temperature by the required temperature through a temperature controller. .
  • the temperature of the heat applied to the preheater 200 is equal to or lower than the glass transition temperature (Tg) of the suture raw material used to manufacture the suture whole body, and equal to or lower than the melting point (Tm), preferably 15 ° C. or lower (Tm-15). Melting point below 30 ° C (Tm-30 ° C).
  • the pressure roller 300 is for pressing the heated suture on the upper and lower surfaces, and in this case, a special process for protecting the orientation is required because the orientation is broken when the suture is used in a general roller compression method.
  • the pressing roller unit 300 as shown in Figure 3, comprises a first pressing roller 310, the second pressing roller 320 and the third pressing roller 330 sequentially arranged,
  • the second press roller 320 presses the suture more than the first press roller 310
  • the third press roller 330 presses the suture more than the second press roller 320. It is preferable that the raw material is made to be gradually thinner.
  • the first pressure roller 310 is set to press the gap between the upper end and the lower end of the frame formed in the first pressure roller from 50% to 80% of the outer diameter of the raw material suture because it affects the orientation during excessive compression
  • the second press roller 320 pressurizes the raw material from the first press roller 310 again in the second press roller 320, and the gap between the upper end and the lower end of the mold formed on the roller at this time is also used in the first press roller. It is desirable to set the pressure to 50% to 80% of the outer diameter of the raw material suture.
  • the interval between the upper end and the lower end of the frame formed in the third pressure roller 330 is also set to press the level of 50% to 80% of the outer diameter of the pressurized suture from the second pressure roller 320.
  • the suture processed through the pressing roller portion can finally obtain a thickness of about 1/2 the initial yarn thickness, and can be three times the width of the initial yarn thickness.
  • the pressure roller unit 300 is provided with two or more pressure roller units installed in parallel so as to be able to independently rotate each other, and more preferably three, and adjust the interval of the pressure roller so as to control the thickness of the hollow product up to a micro unit.
  • a regulator may be included.
  • all pressurized rollers include a heating wire, thereby allowing the temperature to be transmitted to the raw material.
  • Heat is imparted to the polymer to reduce the crystallinity of the polymer to create a good processability environment, but because it affects the orientation is to be carried out under conditions that do not affect the physical properties.
  • Die cut mold 400 is to form a cutting line on both sides of the suture along the longitudinal direction by pressing the pressurized suture, as shown in Figure 4, the plate through the pressure roller 300 A cutting line for forming barbs is formed on the sutures compressed in the form.
  • the cutting line may be formed using a knife, laser, press molding injection molding, stamping, or the like.
  • the injection molding by press molding is configured to form a cutting line after press working on a plate-shaped suture that is pressed into a plate shape, and the upper mold or the lower mold is fixed to one end and the other end of the suture.
  • Cutting members such as blades can be configured to form a cutting line continuously in an inclined angle.
  • the cutting lines formed on both sides may be formed in the same shape, as shown in (a) of FIG. 4, or in both directions as shown in (b) of FIG. 4.
  • the twister 500 is to twist the suture continuously by applying a rotational force to the suture, and in this step, one side of the suture formed with the cutting line is fixed and the other side is continuously rotated so that the entire raw material is twisted in a spiral form. This results in the formation of twisted yarns in the form of bands of twisted raw material, ie projections.
  • a rotation of 90 ° per cm length of the suture is added to form a spiral protrusion, and when inserted into the soft tissue, it has an anchoring ability in the opposite direction of insertion.
  • the spiral protrusion may be formed in one direction or in both directions, as shown in (a) and (b) of FIG.
  • the suture formed with the barbed protrusion is wound up through the suture winding unit 600.
  • a cutting portion 700 disposed between the die cut mold portion 400 and the suture winding portion 600, the cut portion 700 is the suture so that the suture is wound to a predetermined length To cut.
  • FIG. 6 is a schematic view showing a suture manufacturing apparatus according to another embodiment of the present invention.
  • the suture manufacturing apparatus 20 is a suture feeder 100, a pressing roller 300 (300 ') having a heating wire (311 ⁇ , 321 ⁇ , 331 ⁇ ), die cut mold ( 400, the twister 500 and the suture winding 600 may be configured, wherein the cutting line formed by the die cut mold 400 is inclined at a predetermined angle toward one direction or both directions It is formed as, characterized in that formed to be continuously spaced apart a predetermined interval.
  • the suture manufacturing apparatus 20 includes the same configuration as the suture manufacturing apparatus 10 with reference to FIGS. 1 to 5, and a detailed description thereof will be omitted.
  • the suture manufacturing apparatus 10 includes a preheating unit 200 for heating the suture, while the suture manufacturing apparatus 20 does not include a separate preheating unit.
  • the pressure roller part 300 ⁇ constituting the suture manufacturing apparatus 20 includes a first pressure roller 310 ', a second pressure roller 320', and a third pressure roller 330 ', and each pressure roller ( 310 ′, 320 ′, and 330 ′ may be provided with heating wires 311, 321, and 331 that apply heat to the suture.
  • the pressurizing roller unit 300 ′ provided with the heating wires 311, 321, and 331 has a feature that can simultaneously heat the suture while pressing.
  • the suture manufactured through the suture manufacturing method uses a yarn whose orientation characteristics are determined, the crystallinity is low and the tensile strength and elongation are lower than that of a preform having an orientation characteristic obtained through injection molding or the like. It has the advantage of obtaining excellent physical properties.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Materials For Medical Uses (AREA)

Abstract

La présente invention concerne un dispositif de fabrication d'une suture utilisée en chirurgie et un procédé de fabrication d'une suture et concerne, plus précisément, un dispositif de fabrication d'une suture et un procédé de fabrication d'une suture ne nécessitant pas d'opération de nouage de suture pendant une opération de suture. Selon le dispositif de fabrication d'une suture et le procédé de fabrication d'une suture de la présente invention, des propriétés physiques, comme une bonne flexibilité, une excellente résistance à la traction et un allongement, peuvent être obtenues en ayant une cristallisation inférieure à celle obtenue lors de l'utilisation d'une préforme ayant une caractéristique d'orientation obtenue par un procédé tel qu'un moulage par injection.
PCT/KR2016/015147 2016-12-23 2016-12-23 Dispositif de fabrication de suture médicale et procédé de fabrication de suture Ceased WO2018117305A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2016/015147 WO2018117305A1 (fr) 2016-12-23 2016-12-23 Dispositif de fabrication de suture médicale et procédé de fabrication de suture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2016/015147 WO2018117305A1 (fr) 2016-12-23 2016-12-23 Dispositif de fabrication de suture médicale et procédé de fabrication de suture

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WO2018117305A1 true WO2018117305A1 (fr) 2018-06-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111134748A (zh) * 2020-01-03 2020-05-12 浙江微度医疗器械有限公司 一种在缝合线上形成单向或者双向倒刺的装置及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080132943A1 (en) * 2006-12-05 2008-06-05 Nicholas Maiorino Knotless wound closure device
US8100941B2 (en) * 2008-06-17 2012-01-24 Ethicon, Inc. Collapsible barbed sutures having reduced drag and methods therefor
KR101581865B1 (ko) * 2014-12-26 2015-12-31 (주)제이월드 의료용 봉합사 제조 장치 및 봉합사 제조 방법
KR101642962B1 (ko) * 2015-11-05 2016-07-26 (주)제이월드 봉합사 및 그 제조 방법
KR101682534B1 (ko) * 2013-06-20 2016-12-06 주식회사 에스트라 피부 리프팅 또는 조직의 볼륨 팽창용 봉합사

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080132943A1 (en) * 2006-12-05 2008-06-05 Nicholas Maiorino Knotless wound closure device
US8100941B2 (en) * 2008-06-17 2012-01-24 Ethicon, Inc. Collapsible barbed sutures having reduced drag and methods therefor
KR101682534B1 (ko) * 2013-06-20 2016-12-06 주식회사 에스트라 피부 리프팅 또는 조직의 볼륨 팽창용 봉합사
KR101581865B1 (ko) * 2014-12-26 2015-12-31 (주)제이월드 의료용 봉합사 제조 장치 및 봉합사 제조 방법
KR101642962B1 (ko) * 2015-11-05 2016-07-26 (주)제이월드 봉합사 및 그 제조 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111134748A (zh) * 2020-01-03 2020-05-12 浙江微度医疗器械有限公司 一种在缝合线上形成单向或者双向倒刺的装置及方法

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