KR102254094B1 - Manufacture method of Suture material for medical treatment using under water type of elongation - Google Patents

Manufacture method of Suture material for medical treatment using under water type of elongation Download PDF

Info

Publication number
KR102254094B1
KR102254094B1 KR1020200092871A KR20200092871A KR102254094B1 KR 102254094 B1 KR102254094 B1 KR 102254094B1 KR 1020200092871 A KR1020200092871 A KR 1020200092871A KR 20200092871 A KR20200092871 A KR 20200092871A KR 102254094 B1 KR102254094 B1 KR 102254094B1
Authority
KR
South Korea
Prior art keywords
punching
wire rod
cog
tensioning
wire
Prior art date
Application number
KR1020200092871A
Other languages
Korean (ko)
Inventor
이길행
이재근
Original Assignee
㈜동원메디칼
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 ㈜동원메디칼 filed Critical ㈜동원메디칼
Priority to KR1020200092871A priority Critical patent/KR102254094B1/en
Application granted granted Critical
Publication of KR102254094B1 publication Critical patent/KR102254094B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L17/00Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
    • A61L17/06At least partially resorbable materials
    • A61L17/10At least partially resorbable materials containing macromolecular materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05Filamentary, e.g. strands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B29C59/025Fibrous surfaces with piles or similar fibres substantially perpendicular to the surface
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/0007Electro-spinning
    • D01D5/0015Electro-spinning characterised by the initial state of the material
    • D01D5/003Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00349Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/36Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00Shaping characteristics in general
    • B29C2791/003Making articles of indefinite length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00Shaping techniques involving a cutting or machining operation
    • B29C2793/0054Shaping techniques involving a cutting or machining operation partially cutting through the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/731Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Vascular Medicine (AREA)
  • Materials Engineering (AREA)
  • Surgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The present invention relates to a method for manufacturing a medical thread with improved manufacturability, productivity, and usability by using a pre-punched post-tensile processing method. Accordingly, a plurality of punched grooves are formed on an outer circumferential surface of a wire rod to be processed, and for the wire rod with punched grooves, after heating the same to below the glass transition temperature, the wire rod before modification is stretched in both lengths in the longitudinal direction so that the outer edge of the punched grooves is formed into a cog. Therefore, compared to the conventional manufacturing method of stretching after injection, an area of the usable part is high, and a shape of the cog is easily and precisely secured by punching, as well as the strength of the cog's manufacturing structure is greatly improved, thereby having greatly improved operation performance by high traction force.

Description

선타발 후인장 가공방식을 이용하여 제작성과 사용성이 개선된 의료용 실 제조방법{Manufacture method of Suture material for medical treatment using under water type of elongation}[Manufacture method of Suture material for medical treatment using under water type of elongation]

본 발명은 단면이 원형인 선재(사출이나 압출된 실)가 기본 준비되도록 하되, 상기 선재의 외주면에는 다수의 타발홈이 가공되도록 하고, 상기 타발홈이 가공된 선재는 유리전이온도 이하로 가열한 뒤 변성 전에 길이방향 양쪽으로 인장하여 해당 타발홈의 바깥측 모서리가 상향 들어올려지면서 코그 형태를 이루도록 하는 바, 이는 힘의 방향에 따라 걸어서 당기거나, 끌려가지 않게 지지하거나, 양 방향의 이동성을 제한하도록 구조가 형성(바깥을 향해 코그 쐐기가 향하거나 안쪽을 향해 코그 쐐기가 향하는 등)되어 시술성이 크게 개선됨은 물론 특히 사출 후 연신가공하는 종전의 제조방식 대비 활용(사용) 가능한 부분의 영역이 높고(종전 제작 방식 중 사출 성형 제작방식은 사출액을 금형에 투입하는 과정에서 실이 생성되는 도입부 초입(입구부분)측 밀도가 높아 사출이 완료되면 해당 앞부분이 늘어나지 않아 사용할 수 있는 영역을 따로 설정하고 더 길게 연장하여 제작해야 함-불필요한 구간이 형성되어 재료 낭비와 제작시간 손실을 야기함) 코그의 형태가 타발가공에 의해 용이하고 정밀하게 확보됨은 물론 코그의 제작 구조상 강도가 크게 향상되어 높은 견인력으로 하여금 시술성이 크게 개선되는 것을 특징으로 하는 선타발 후인장 가공방식을 이용하여 제작성과 사용성이 개선된 의료용 실 제조방법에 관한 것이다.In the present invention, a wire rod having a circular cross section (injected or extruded thread) is prepared by default, but a plurality of punching grooves are processed on the outer circumferential surface of the wire rod, and the wire rod processed with the punching grooves is heated to a glass transition temperature or lower. The outer edge of the punched groove is lifted upwards to form a cog shape by stretching it in both longitudinal directions before the rear degeneration.This bar is pulled or supported not to be dragged according to the direction of force, or the mobility in both directions is limited. The structure is formed so that the cog wedge faces outward or the cog wedge faces inward, so the operability is greatly improved, and in particular, the area of the area that can be utilized (used) compared to the previous manufacturing method of stretching after injection High (Of the previous manufacturing methods, the injection molding manufacturing method has a high density at the entrance (entrance) side where the thread is created in the process of injecting the injection liquid into the mold, so when the injection is completed, the front part does not stretch, so the usable area is set separately. The cog shape is easily and precisely secured by the punching process, and the strength of the cog is greatly improved due to the high traction force. It relates to a medical thread manufacturing method with improved manufacturability and usability by using a pre-punching post-tension processing method, characterized in that the operability is greatly improved.

이에, 본 발명은 기본적으로 선재의 단면이 원형(정원:正圓)으로 된 것을 사용할 수 있으나, 필요에 따라서는 원형의 단면을 외부에서 눌러(물리적인 가압, 압착) 단면이 타원형으로 된 선재를 사용할 수도 있는 것으로, 이는 동일한 체적(굵은 선재를 쓰지 않고 얇은 선을 눌러 사용)에서 표면적만 늘어나는 형태가 되기 때문에 이물감 없이 코그를 형성하기에 원활(증가한 표면적에 의해 코그의 타발 성형시 형상이 명확하고 넓게 구현됨-제작성과 사용성이 개선)한 특징이 있다.Thus, in the present invention, a wire rod having a circular cross section (garden: 正圓) can be used, but if necessary, pressing the circular cross section from the outside (physical pressing, pressing) to obtain a wire rod having an elliptical cross section. It can also be used, and it is a form that only increases the surface area in the same volume (using a thin line without using a thick wire), so it is smooth to form a cog without feeling of foreign body (the shape is clear when punching the cog due to the increased surface area. It has a feature that is widely implemented-improved production and usability).

이러한, 본 발명은 선재 전체에 대하여 균등한 물리적 강도가 보장되어 지지력 및 인장력이 확보되는 바, 이는 의료용 및 성형용으로 사용시 시술 신뢰성과 안전성 및 만족감이 보장되는 것을 특징으로 한다.As such, the present invention is characterized in that the uniform physical strength is ensured for the entire wire rod to secure support and tensile strength, which is characterized in that the reliability, safety, and satisfaction of the procedure are guaranteed when used for medical and molding purposes.

일반적으로 의료용 실은 절개된 피부를 봉합하거나 처진 피부를 당겨 ?게 보이도록 하는 용도로 외과용 또는 성형 의료용으로 주로 사용된다.In general, medical threads are mainly used for surgical or plastic medical applications to suture the incised skin or pull the saggy skin to make it appear.

즉, 통상의 의료용 실은 나일론 또는 합성수지 등과 같이 장력 강도가 좋은 외줄 실로서, 해당 실의 표면에는 갈고리 모양의 가시돌기(이하, '코그'라 함)들이 일정한 방향으로 형성(가시 돌기가 마주보는 방향이거나 지그재그인 방향으로 기울어지게 돌출시킨 형태)되어 절개된 피부 봉합시 또는 피부 견인시 지지력이 향상되도록 형성된다.That is, a typical medical thread is a single string with good tensile strength such as nylon or synthetic resin, and hook-shaped spinous protrusions (hereinafter referred to as'cog') are formed in a certain direction on the surface of the thread (the direction in which the thorn protrusion faces Or protruding obliquely in a zigzag-in direction) and is formed to improve the support power when the incision is sutured or when the skin is pulled.

이에 종래의 코그는 그 제작 방법의 일 예로서, 도 4에 도시된 바와 같이 실 표면 자체에 임의로 칼집을 내어 가공하는 방식이거나 펀칭하여 잘라내는 형태 중 하나로 제작된다.Accordingly, as an example of a method of manufacturing the conventional cog, as shown in FIG. 4, it is manufactured in one of a method in which a thread surface is processed by randomly cutting it or by punching.

그러나 이러한 제작 방식은 실 자체에 강도가 감소되어 강한 고정력과 견인력을 기대하기 어려웠으며 시술(수술) 후 실의 취약부가 절단(단락)될 소지가 있어 시술(수술) 신뢰성에 문제가 발생되었다.However, in this manufacturing method, the strength of the thread itself was reduced, so it was difficult to expect strong fixation and traction, and there was a possibility that the weakened part of the thread could be cut (shortened) after the procedure (surgery), causing a problem in the reliability of the procedure (surgery).

이를 해결하고자 코그가 일체로 성형된 실을 사출로 제작한 뒤 연신하는 방식이 제안되었다.In order to solve this problem, a method was proposed in which a thread in which the cog is integrally molded is produced by injection and then stretched.

즉, 사출 제작방식은 코그가 실 자체에 일체로 사출되도록 하는 것으로, 사출 후 연신시에는 해당 실의 전체 구간이 일정하게 늘어나지 않게 되는데, 이는 사출액을 금형에 투입하는 과정에서 실이 생성되는 도입부 초입(입구부분)측 밀도가 다른 부분보다 높아 사출이 완료되면 해당 앞부분이 잘 늘어나지 않기 때문에 사용할 수 있는 영역을 따로 더 설정하고 길게 연장하여 제작해야 하는 문제가 발생된다. In other words, the injection manufacturing method allows the cog to be integrally injected into the thread itself, and during stretching after injection, the entire section of the thread does not increase uniformly, which is the introduction part where the thread is created in the process of injecting the injection liquid into the mold. Since the density of the entrance (entrance) side is higher than that of the other parts and the front part does not stretch well when injection is completed, there is a problem that the usable area must be separately set and extended to be manufactured.

다시 말해 종전 사출 후 연신 방식은 균등하게 잘 늘어나지 않는 고밀도 구간이 형성되어 버리는 구간 또는 불필요한 구간이 형성되는 바, 이는 재료 낭비와 제작시간 손실을 야기하는 문제가 발생되고 있는 실정이다.In other words, in the conventional stretching method after injection, a section in which a high-density section that does not stretch well is formed, or an unnecessary section is formed, which causes waste of materials and loss of manufacturing time.

1. 대한민국 등록특허 제10-1057376호(2011.08.10.)1. Korean Patent Registration No. 10-1057376 (2011.08.10.)

본 발명은 상술한 문제점을 해결하기 위한 것으로, 그 기술적 요지는 사출 또는 압출된 선재의 외주면에 다수의 타발홈이 가공되도록 하되, 상기 타발홈이 가공된 선재는 유리전이온도 이하로 가열한 뒤 변성 전에 길이방향 양쪽에서 동시에 인장하여 해당 타발홈의 바깥측 모서리가 상향 들어올려지면서 코그 형태를 이루도록 하는 바, 이는 사출 후 연신가공하는 종전의 제조방식 대비 활용(사용) 가능한 부분의 영역이 높고 코그의 형태가 타발가공에 의해 용이하고 정밀하게 확보되는 것을 제공함에 그 목적이 있다.The present invention is to solve the above-described problem, and the technical gist of the present invention is to allow a plurality of punching grooves to be processed on the outer circumferential surface of the extruded or extruded wire rod, but the wire rod processed with the punching grooves is heated to a glass transition temperature or lower and then modified. The outer edge of the punching groove is lifted upwards to form a cog shape by simultaneously stretching in both the longitudinal direction before, and this bar has a higher area of use (use) compared to the conventional manufacturing method of stretching after injection, and the area of the cog is high. Its purpose is to provide that the shape is easily and precisely secured by punching.

이러한 본 발명은 힘의 방향에 따라 걸어서 당기거나, 끌려가지 않게 지지하거나, 양 방향의 이동성을 제한하도록 구조가 형성(바깥을 향해 코그 쐐기가 향하거나 안쪽을 향해 코그 쐐기가 향하는 등)되어 시술성이 크게 개선되는 것을 제공함에 그 목적이 있다.In the present invention, a structure is formed to limit mobility in both directions by walking or supporting not to be dragged according to the direction of the force (the cog wedge faces outward or the cog wedge faces inward, etc.) Its purpose is to provide for this significant improvement.

또한, 본 발명은 코그의 제작 구조상 타발홈으로부터 이루어진 바깥측 모서리가 양방향 인장되는 요홈면을 기준으로 자연 상승(칼집의 개념과 상이함)하면서 돌출된 쐐기 형태를 이루도록 하는 바, 이는 강도가 크게 향상되어 높은 견인력으로 하여금 시술성이 크게 개선되는 것을 제공함에 그 목적이 있다.In addition, the present invention is a bar to form a protruding wedge shape while naturally rising (different from the concept of the sheath) based on the groove surface in which the outer edge formed from the punching groove is stretched in both directions due to the manufacturing structure of the cog, which greatly improves the strength. The purpose is to provide a high traction force to greatly improve the operability.

또한, 본 발명은 선재 전체에 대하여 균등한 물리적 강도가 보장되어 지지력 및 인장력이 확보되는 바, 이는 의료용 및 성형용으로 사용시 시술 신뢰성과 안전성 및 만족감이 보장되는 것을 제공함에 그 목적이 있다.In addition, an object of the present invention is to provide that uniform physical strength is ensured for the entire wire rod to secure support and tensile strength, and this is to provide that the reliability, safety, and satisfaction of the procedure are guaranteed when used for medical and molding purposes.

또한, 본 발명은 1조 형태의 타발펀치를 갖는 연속 타발기를 통해 타발홈이 가공되도록 하는 바, 이는 이송 중의 선재(어느 한 쪽은 선을 풀고 다른 쪽은 감고 있는 상태의 롤링 공정)에 대하여 연속적인 타발홈이 형성되어 종전 사출 성형방식 대비 신속한 작업성과 높은 생산성이 확보되도록 하는 것을 제공함에 그 목적이 있다.In addition, the present invention allows punching grooves to be processed through a continuous punching machine having a punching punch in a single set, which is for the wire rod during transfer (one side unwinding the wire and the other rolling process). The purpose of this is to provide a continuous punching groove to ensure quick workability and high productivity compared to the conventional injection molding method.

이에, 본 발명은 기본적으로 선재의 단면이 원형(정원:正圓)으로 된 것을 사용할 수 있으나, 필요에 따라서는 원형의 단면을 외부에서 눌러(물리적인 가압, 압착) 단면이 타원형으로 된 선재를 사용할 수도 있는 것으로, 이는 동일한 체적(굵은 선재를 쓰지 않고 얇은 선을 눌러 사용)에서 표면적만 늘어나는 형태가 되기 때문에 이물감 없이 코그를 형성하기에 원활(증가한 표면적에 의해 코그의 타발 성형시 형상이 명확하고 넓게 구현됨-제작성과 사용성이 개선)한 것을 제공함에 그 목적이 있다.Thus, in the present invention, a wire rod having a circular cross section (garden: 正圓) can be used, but if necessary, pressing the circular cross section from the outside (physical pressing, pressing) to obtain a wire rod having an elliptical cross section. It can also be used, and it is a form that only increases the surface area in the same volume (using a thin line without using a thick wire), so it is smooth to form a cog without feeling of foreign body (the shape is clear when punching the cog due to the increased surface area. Its purpose is to provide something that is widely implemented-improved production and usability).

이러한 목적을 달성하기 위해 본 발명은 단면 직경이 원형인 선재(100)에 대하여 일정 간격을 두고 설정된 형상의 타발홈(200)이 가공되도록 하되, 상기 타발홈(200)은 요홈면(210)을 기준으로 바깥쪽 모서리(220)가 각각 성형되면서 선재(100)의 길이방향 선상 중 양쪽 수평라인을 따라 지그재그 타발되도록 하는 타발단계(S100)와; 상기 타발된 선재(100)에 대하여 인장하도록 하되 상기 인장시에는 타발홈(200)의 요홈면(210)은 늘어나고 바깥측 모서리(220)는 상향 들어올려지면서 경사각을 갖는 코그(Cog)로 형성되도록 하는 인장단계(S200)가; 구성되어 이루어진다.In order to achieve this object, the present invention allows the punching groove 200 of the set shape to be processed at regular intervals with respect to the wire 100 having a circular cross-sectional diameter, but the punching groove 200 has a concave groove surface 210. A punching step (S100) of zigzag punching along both horizontal lines of the longitudinal line of the wire rod 100 while the outer corners 220 are each molded as a reference; The punched wire 100 is to be tensioned, but during the tensioning, the groove surface 210 of the punching groove 200 is stretched and the outer edge 220 is lifted upward and formed into a cog having an inclination angle. The tensioning step (S200) is; It is composed and made.

이에, 상기 타발단계(S100)는 연속 타발기(300)를 통해 이루어지도록 하되, 상기 연속 타발기(300)는 지그재그로 놓인 상금형(310)의 타발펀치(311)가 이격된 간격을 두고 서로 1조로 형성되어 하금형(320)의 펀칭홈(321)을 기준으로 일방향 이송되는 선재(100)에 대하여 위에서 아래로 상하향 업다운되면서 선재(100)의 양측 선상이 연속 타발되도록 형성된다.Thus, the punching step (S100) is to be made through the continuous punching machine 300, the continuous punching machine 300 is the punching punches 311 of the upper mold 310 placed in a zigzag pattern at a spaced apart from each other. It is formed in a set and is formed so that both sides of the wire 100 are continuously punched while up-down from the top to the bottom with respect to the wire 100 that is transferred in one direction based on the punching groove 321 of the lower mold 320.

이때, 상기 인장단계(S200)는 선재(100)의 길이방향 단부 양쪽에서 동시에 힘을 가해 인장하도록 하되, 상기 인장시에는 유리전이온도 이하로 가열한 뒤 변성이 오기 직전의 선재(100)를 잡아 당기도록 형성된다.At this time, in the tensioning step (S200), a force is applied to both ends of the wire rod 100 in the longitudinal direction to be tensioned at the same time, but during the tensioning, the wire rod 100 is held immediately before degeneration after heating to the glass transition temperature or lower. It is formed to pull.

이와 같이, 본 발명은 단면이 원형인 선재(사출이나 압출된 실)가 기본 준비되도록 하되, 상기 선재의 외주면에는 다수의 타발홈이 가공되도록 하고, 상기 타발홈이 가공된 선재는 유리전이온도 이하로 가열한 뒤 변성 전에 길이방향 양쪽으로 인장하여 해당 타발홈의 바깥측 모서리가 상향 들어올려지면서 코그 형태를 이루도록 하는 바, 이는 사출 후 연신가공하는 종전의 제조방식 대비 활용(사용) 가능한 부분의 영역이 높고, 코그의 형태가 타발가공에 의해 용이하고 정밀하게 제작되는 특징이 있다.As described above, the present invention allows a wire rod (injected or extruded thread) having a circular cross section to be prepared by default, but a plurality of punching grooves are processed on the outer circumferential surface of the wire rod, and the wire rod processed with the punching grooves is below the glass transition temperature. After heating with a furnace, the outer edge of the punching groove is lifted upwards to form a cog shape by stretching it in both longitudinal directions before deforming. This is the area of the area that can be utilized (used) compared to the previous manufacturing method of stretching after injection. This is high, and the shape of the cog is characterized by being easily and precisely manufactured by punching.

또한, 본 발명은 코그의 제작 구조상 타발홈으로부터 이루어진 바깥측 모서리가 양방향 인장되는 요홈면을 기준으로 자연 상승(칼집의 개념과 상이함)하면서 돌출된 쐐기 형태를 이루도록 하는 바, 이는 크그의 강도가 크게 향상되어 높은 견인력으로 하여금 시술성이 크게 개선되는 효과가 있다.In addition, the present invention is to form a protruding wedge shape while naturally rising (different from the concept of the sheath) based on the groove surface in which the outer edge formed from the punching groove is stretched in both directions due to the manufacturing structure of the cog. It is greatly improved and has the effect of greatly improving the operability due to high traction.

또한, 본 발명은 선재 전체에 대하여 균등한 물리적 강도가 보장되어 지지력 및 인장력이 확보되는 바, 이는 의료용 및 성형용으로 사용시 시술 신뢰성과 안전성 및 만족감이 보장되는 효과가 있다.In addition, in the present invention, uniform physical strength is ensured for the entire wire rod to secure support and tensile strength, which is effective in ensuring reliability, safety, and satisfaction when used for medical and molding purposes.

또한, 본 발명은 1조 형태의 타발펀치를 갖는 연속 타발기를 통해 타발홈이 가공되도록 하는 바, 이는 이송 중의 선재(어느 한 쪽은 선을 풀고 다른 쪽은 감고 있는 상태의 롤링 공정)에 대하여 연속적인 타발홈이 형성되어 종전 사출 성형방식 대비 신속한 작업성과 높은 생산성이 확보되도록 하는 효과가 있다.In addition, the present invention allows punching grooves to be processed through a continuous punching machine having a punching punch in a single set, which is for the wire rod during transfer (one side unwinding the wire and the other rolling process). As a continuous punching groove is formed, there is an effect of securing quick workability and high productivity compared to the previous injection molding method.

도 1은 본 발명에 따른 의료용 실의 제작방법을 나타낸 예시도,
도 2는 본 발명에 따른 의료용 실의 실 제품 예시도,
도 3은 도 2의 코그 확대 예시도,
도 4는 종래 의료용 실의 예시도이다.
1 is an exemplary view showing a method of manufacturing a medical thread according to the present invention,
2 is an exemplary view of a thread product of a medical thread according to the present invention,
3 is an enlarged exemplary view of the cog of FIG. 2,
4 is an exemplary view of a conventional medical room.

다음은 첨부된 도면을 참조하며 본 발명을 보다 상세히 설명하겠다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

먼저, 도 1 내지 도 3에 도시된 바와 같이, 본 발명은 의료용 실을 제조함에 있어서 타발단계와 인장단계를 통해 제조하도록 형성된다.First, as shown in Figs. 1 to 3, the present invention is formed to be manufactured through a punching step and a tensile step in manufacturing a medical thread.

이에, 상기 타발단계(S100)는 단면 직경이 원형인 선재(100)에 대하여 일정 간격을 두고 설정된 형상의 타발홈(200)이 가공되도록 형성된다.Accordingly, the punching step (S100) is formed to process the punching groove 200 having a shape set at a predetermined interval with respect to the wire 100 having a circular cross-sectional diameter.

이때, 상기 타발홈(200)은 요홈면(210)을 기준으로 바깥쪽 모서리(220)가 각각 성형되면서 선재(100)의 길이방향 선상 중 양쪽 수평라인을 따라 지그재그 타발되도록 형성된다.At this time, the punching groove 200 is formed to be punched zigzag along both horizontal lines of the longitudinal line of the wire rod 100 while the outer corners 220 are each molded with respect to the concave groove surface 210.

즉, 상기 타발홈은 선재의 선단 중 외측이 개방된 디귿자 형태로 타발되는 것으로, 안쪽 요홈면을 기준으로 바깥쪽 모서리가 양측에 구비되는 형태로 형성된다.That is, the punching groove is punched in the form of a digutja with an open outer side of the tip of the wire rod, and is formed in a shape in which outer corners are provided on both sides based on the inner groove surface.

이에, 상기 인장단계(S200)는 타발된 선재(100)에 대하여 인장하도록 하되 상기 인장시에는 타발홈(200)의 요홈면(210)은 늘어나고 바깥측 모서리(220)는 상향 들어올려지면서 경사각을 갖는 코그(Cog)로 형성되도록 하는 구성되어 이루어진다.Thus, in the tensioning step (S200), the punched wire 100 is tensioned, but during the tensioning, the concave surface 210 of the punching groove 200 is increased and the outer edge 220 is lifted upward and the inclination angle is increased. It is configured to be formed by having a cog (Cog).

즉, 상기 선재가 인장되면 타발홈의 요홈면은 길이가 늘어나게 되고, 이를 기준으로 양측에 구비된 바깥측 모서리는 요홈면의 장력에 의해 당겨지면서 바깥측 모서리 부분이 일부 들어올려지게 되며, 이에 돌출된 바깥측 모서리는 세워지는 형태로 솟아 오르게 되어 결국 쐐기 형태의 코그로 형성된다.That is, when the wire rod is tensioned, the length of the grooved surface of the punching groove is increased, and the outer edge provided on both sides is pulled by the tension of the grooved surface based on this, and the outer edge portion is partially lifted, thereby protruding. The outer edge of the wall rises upright and eventually forms a wedge-shaped cog.

한편, 본 발명 코그의 모양과 방향을 다양하게 실시할 수 있는 것으로, 도 3 내지 도 5에 도시된 바와 같이 선재의 일정 구간에서 서로 대칭된 코그가 힘의 방향에 따라 걸어서 당기거나, 끌려가지 않게 지지하거나, 양 방향의 이동성을 제한하도록 구조가 형성(바깥을 향해 코그 쐐기가 향하거나 안쪽을 향해 코그 쐐기가 향하는 등)되어 시술성이 크게 개선되는 특징이 있다.On the other hand, the present invention can be implemented in various shapes and directions of the cog. As shown in Figs. 3 to 5, cogs symmetrical to each other in a certain section of the wire rod are not pulled or pulled by walking according to the direction of the force. The structure is formed to support or limit mobility in both directions (a cog wedge faces outward or a cog wedge faces inward, etc.), which greatly improves the operability.

이때, 상기 인장단계(S200)는 선재(100)의 길이방향 단부 양쪽에서 동시에 힘을 가해 인장하도록 하되, 상기 인장시에는 유리전이온도 이하로 가열한 뒤 변성이 오기 직전의 선재(100)를 잡아 당기도록 형성된다.At this time, in the tensioning step (S200), a force is applied to both ends of the wire rod 100 in the longitudinal direction to be tensioned at the same time, but during the tensioning, the wire rod 100 is held immediately before degeneration after heating to the glass transition temperature or lower. It is formed to pull.

한편, 상기 타발단계(S100)는 연속 타발기(300)를 통해 이루어지도록 형성된다.On the other hand, the punching step (S100) is formed to be made through the continuous punching machine (300).

즉, 상기 연속 타발기(300)는 지그재그로 놓인 상금형(310)의 타발펀치(311)가 이격된 간격을 두고 서로 1조로 형성되어 하금형(320)의 펀칭홈(321)을 기준으로 일방향 이송되는 선재(100)에 대하여 위에서 아래로 상하향 업다운되면서 선재(100)의 양측 선상이 연속 타발되도록 형성된다.That is, in the continuous punching machine 300, the punching punches 311 of the upper mold 310 placed in a zigzag are formed in one set with a spaced apart from each other, so that one direction based on the punching grooves 321 of the lower mold 320 It is formed so that both sides of the wire rod 100 are continuously punched while up-down from the top to the bottom with respect to the wire rod 100 to be transferred.

다시 말해, 본 발명의 연속 타발기는 선재가 이송 중인 상태에서 2개 1조(서로 일정 간격 이격된 위치에서 위 아래 지그재그 되도록 펀칭하는 형태)의 타발펀치가 구비되도록 하되, 상기 타발펀치는 하금형의 펀칭홈을 기준으로 상하 승강하면서 선재의 양측 선단에 타발홈을 형성하도록 이루어진다.In other words, the continuous punching machine of the present invention is provided with two punching punches in one set (in the form of punching up and down zigzag at positions spaced apart from each other at a certain interval) while the wire rod is being transported, but the punching punch is a lower mold It is made to form punching grooves at both ends of the wire rod while moving up and down based on the punching groove of the wire.

이러한, 본 발명은 견고한 지지력으로 인해 인체의 평면 부위 뿐만 아니라 입체적으로 곡률을 가지는 부위도 봉합이 가능하고 봉합된 피부와 피부가 벌어지려는 현상을 견고하게 잡아 주면서 환자의 회복을 빠르게 유도하도록 형성된다.As such, the present invention is formed to induce recovery of the patient while firmly holding not only a flat part of the human body but also a part having a three-dimensional curvature due to a solid supporting force, and firmly holding the sutured skin and the phenomenon that the skin is about to open. .

또한, 본 발명은 도 6에 도시된 바와 같이, 기본적으로 선재의 단면이 원형(정원:正圓)으로 된 것을 사용할 수 있으나, 필요에 따라서는 원형의 단면을 외부에서 눌러(물리적인 가압, 압착) 단면이 타원형으로 된 선재를 사용할 수도 있게 된다.In addition, in the present invention, as shown in Fig. 6, it is possible to use a wire rod whose cross-section is basically circular (normal), but if necessary, pressing the circular cross-section from the outside (physical pressing, pressing ) It is also possible to use a wire rod with an elliptical cross section.

즉, 단면이 원형인 선재는 길이방향을 따라 롤링이나 압연 또는 프레스를 통하여 압착시켜 단면이 타원형이 되도록 한 뒤, 코그 형성을 위한 타발 공정이 수행되도록 형성된다.That is, the wire rod having a circular cross section is formed to be pressed in a longitudinal direction through rolling, rolling or pressing so that the cross section becomes elliptical, and then a punching process for cog formation is performed.

그러면 단면이 원형이었던 것에서 타원형으로 좌우 폭이 넓게 연장되듯 늘어나면서 해당 자리에 타발홈을 가공하여 코그가 형성되도록 하는 바, 타원형처럼 늘어난 넓은 면적에 타발홈이 성형되어 명확하고 정확하게 코그가 형성된다.Then, a cog is formed by processing the punching groove in the corresponding place as it extends from a circular cross-section to an elliptical shape, and the punching groove is formed in a large area like an oval to form the cog clearly and accurately.

정리하면, 원형의 선재(단선)에 대하여 외부에서 가압하여 선재가 타원형으로 압착되도록 형성된다.In summary, it is formed so that the circular wire (single wire) is pressed from the outside so that the wire rod is pressed into an elliptical shape.

이때, 도 6에서 보는 바와 같이 단면이 원형일 경우 해당 부분에서 타발하면 타발홈(이빨 부분)의 크기가 작게 된다.At this time, as shown in FIG. 6, if the cross-section is circular, the punching groove (tooth portion) is reduced in size when punched at the corresponding portion.

그러나, 단면을 눌러 선재의 단면이 타원형으로 늘어나면 표면적은 증가하면서 넓어지게 되고, 이에 타발홈을 성형하면 코그의 형상이 넓어져 명확하게 나오게 된다.However, when the cross section of the wire rod is increased to an elliptical shape by pressing the cross section, the surface area increases and becomes wider, and when the punching groove is formed, the shape of the cog becomes wider and clearly emerges.

참고로, 처음부터 굵은 선재를 사용하지 않고 타원형으로 눌러 사용하는 이유는 선재가 전체적으로 굵어지면 이물감이 생기게 되어 시술 후 거부감이 발생되는 바, 이에 본 발명은 선재의 체적은 그대로 유지하면서 표면적만 늘리는 형태가 되도록 형성된다. 이때, 상기 선재는 사출 및 압연으로 가공 가능한 특징이 있다. For reference, the reason why the wire rod is pressed in an oval shape instead of using a thick wire from the beginning is that when the wire rod becomes thick as a whole, a feeling of foreign body is generated, which causes a feeling of rejection after the procedure.Therefore, the present invention is a form of increasing the surface area while maintaining the volume of the wire rod. Is formed to be. At this time, the wire rod has a feature that can be processed by injection and rolling.

결국, 이러한 본 발명은 동일한 체적(굵은 선재를 쓰지 않고 얇은 선을 눌러 사용)에서 표면적만 늘어나는 형태가 되기 때문에 이물감 없이 코그를 형성하기에 원활(증가한 표면적에 의해 코그의 타발 성형시 형상이 명확하고 넓게 구현됨-제작성과 사용성이 개선)한 특징이 있다.In the end, since this invention has a form in which only the surface area is increased in the same volume (using a thin line without using a thick wire), it is smooth to form a cog without feeling of foreign body (the shape is clear when punching the cog by the increased surface area, and It has a feature that is widely implemented-improved production and usability).

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the specific preferred embodiments described above, and any person having ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. Of course, such changes are intended to be within the scope of the description of the claims.

100 ... 선재 200 ... 타발홈
210 ... 요홈면 220 ... 바깥쪽 모서리
300 ... 연속 타발기 310 ... 상금형
311 ... 타발펀치 320 ... 하금형
321 ... 펀칭홈
100 ... wire 200 ... punching groove
210 ... indentation side 220 ... outer edge
300 ... continuous punching 310 ... prize mold
311 ... Punching Punch 320 ... Lower Mold
321 ... punching groove

Claims (3)

단면 직경이 원형인 선재(100)에 대하여 일정 간격을 두고 설정된 형상의 타발홈(200)이 가공되도록 하되, 상기 타발홈(200)은 요홈면(210)을 기준으로 바깥쪽 모서리(220)가 각각 성형되면서 선재(100)의 길이방향 선상 중 양쪽 수평라인을 따라 지그재그 타발되도록 하는 타발단계(S100)와;
상기 타발된 선재(100)에 대하여 인장하도록 하되 상기 인장시에는 타발홈(200)의 요홈면(210)은 늘어나고 바깥측 모서리(220)는 상향 들어올려지면서 경사각을 갖는 코그(Cog)로 형성되도록 하는 인장단계(S200)가;
구성되어 이루어진 것을 특징으로 하는 선타발 후인장 가공방식을 이용하여 제작성과 생산성 및 사용성이 개선된 의료용 실 제조방법.
With respect to the wire rod 100 having a circular cross-sectional diameter, a punching groove 200 having a shape set at a predetermined interval is processed, but the punching groove 200 has an outer edge 220 with respect to the concave surface 210 A punching step (S100) of making zigzag punching along both horizontal lines of the longitudinal line of the wire rod 100 while being molded, respectively;
The punched wire 100 is to be tensioned, but during the tensioning, the concave surface 210 of the punching groove 200 is stretched and the outer edge 220 is lifted upward and formed into a cog having an inclination angle. The tensioning step (S200) is;
A medical thread manufacturing method with improved productivity and usability by using a pre-punching and post-tensioning processing method, characterized in that the configuration is made.
제 1항에 있어서, 상기 타발단계(S100)는
연속 타발기(300)를 통해 이루어지도록 하되, 상기 연속 타발기(300)는 지그재그로 놓인 상금형(310)의 타발펀치(311)가 이격된 간격을 두고 서로 1조로 형성되어 하금형(320)의 펀칭홈(321)을 기준으로 일방향 이송되는 선재(100)에 대하여 위에서 아래로 상하향 업다운되면서 선재(100)의 양측 선상이 연속 타발되도록 하는 것을 특징으로 하는 선타발 후인장 가공방식을 이용하여 제작성과 생산성 및 사용성이 개선된 의료용 실 제조방법.
The method of claim 1, wherein the punching step (S100)
The continuous punching machine 300 is made through the continuous punching machine 300, but the punching punches 311 of the upper mold 310 placed in a zigzag are formed in a pair with spaced apart from each other, and the lower mold 320 Manufactured using a first punching post-tensioning method, characterized in that the wires on both sides of the wires 100 are continuously punched while up and down from the top to the bottom of the wire 100 transferred in one direction based on the punching groove 321 of A medical thread manufacturing method with improved productivity and usability.
제 1항에 있어서, 상기 인장단계(S200)는
선재(100)의 길이방향 단부 양쪽에서 동시에 힘을 가해 인장하도록 하되, 상기 인장시에는 유리전이온도 이하로 가열한 뒤 변성이 오기 직전의 선재(100)를 잡아 당기도록 하는 것을 특징으로 하는 선타발 후인장 가공방식을 이용하여 제작성과 생산성 및 사용성이 개선된 의료용 실 제조방법.
The method of claim 1, wherein the tensioning step (S200)
The wire rod 100 is to be tensioned by simultaneously applying force at both ends of the longitudinal direction, but during the tensioning, the wire rod 100 is pulled out immediately before degeneration after heating to the glass transition temperature or lower. A medical thread manufacturing method with improved manufacturability, productivity and usability by using a post-tension processing method.
KR1020200092871A 2020-07-27 2020-07-27 Manufacture method of Suture material for medical treatment using under water type of elongation KR102254094B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020200092871A KR102254094B1 (en) 2020-07-27 2020-07-27 Manufacture method of Suture material for medical treatment using under water type of elongation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200092871A KR102254094B1 (en) 2020-07-27 2020-07-27 Manufacture method of Suture material for medical treatment using under water type of elongation

Publications (1)

Publication Number Publication Date
KR102254094B1 true KR102254094B1 (en) 2021-05-21

Family

ID=76157396

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200092871A KR102254094B1 (en) 2020-07-27 2020-07-27 Manufacture method of Suture material for medical treatment using under water type of elongation

Country Status (1)

Country Link
KR (1) KR102254094B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101057376B1 (en) 2010-10-20 2011-08-17 한스바이오메드 주식회사 Bioabsorbable suture having barbed structures on the surface and the method of its manufacture
KR101642962B1 (en) * 2015-11-05 2016-07-26 (주)제이월드 Stitching fiber and process for manufacturing the same
KR101742658B1 (en) * 2016-02-24 2017-06-01 조승현 Medical thread, manufacturing apparatus and method thereof
KR101926311B1 (en) * 2018-07-12 2018-12-06 이길행 Manufacture method of Suture material for medical treatment using under water type of elongation
KR102051605B1 (en) * 2016-01-29 2019-12-03 삼일테크(주) Suture, suture manufacturing method and suture manufacturing equipment
KR102075782B1 (en) * 2018-08-31 2020-02-10 이진우 Apparatus for manufacturing medical thread
KR20200025785A (en) * 2018-08-31 2020-03-10 메디퓨처스 주식회사 Medical thread of trench type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101057376B1 (en) 2010-10-20 2011-08-17 한스바이오메드 주식회사 Bioabsorbable suture having barbed structures on the surface and the method of its manufacture
KR101642962B1 (en) * 2015-11-05 2016-07-26 (주)제이월드 Stitching fiber and process for manufacturing the same
KR102051605B1 (en) * 2016-01-29 2019-12-03 삼일테크(주) Suture, suture manufacturing method and suture manufacturing equipment
KR101742658B1 (en) * 2016-02-24 2017-06-01 조승현 Medical thread, manufacturing apparatus and method thereof
KR101926311B1 (en) * 2018-07-12 2018-12-06 이길행 Manufacture method of Suture material for medical treatment using under water type of elongation
KR102075782B1 (en) * 2018-08-31 2020-02-10 이진우 Apparatus for manufacturing medical thread
KR20200025785A (en) * 2018-08-31 2020-03-10 메디퓨처스 주식회사 Medical thread of trench type

Similar Documents

Publication Publication Date Title
RU2701417C1 (en) Retention suture and method for production thereof
JP6842476B2 (en) New facial and body lift sutures
US9186135B2 (en) Medical suture having micro cogs on surface and method of manufacturing the same
EP3653135B1 (en) Suture with trim formed tip
KR101440224B1 (en) Embedding therapy rope
US20080046094A1 (en) Linear tension material for plastic surgery
KR101926311B1 (en) Manufacture method of Suture material for medical treatment using under water type of elongation
DE102008057216A1 (en) Surgical thread with core-shell construction
HUE027376T2 (en) Surgical suture material with barbs cut into it in the undrawn state
WO2008112417A2 (en) Co-extruded tissue grasping monofilament
RU2006138546A (en) SURGICAL THREAD
US11389158B2 (en) Surgical thread
KR102450523B1 (en) A thread containing variable region
KR102254094B1 (en) Manufacture method of Suture material for medical treatment using under water type of elongation
KR102201848B1 (en) Bio-implantable material, processing apparatus and processing method for bio-implantable material
KR101903336B1 (en) manufacture method of suture for lifting and suture for lifting
KR101688020B1 (en) Medical Suture and Producing Method for the Same
CN112043333A (en) Special-shaped medical operation line and preparation method thereof
KR101655943B1 (en) A Stitching fiber for plastic surgery manufacturing method using shape memory bioabsorbable polymer material and a manufacturing device
KR102109085B1 (en) Yarn for lifting a skin and manufacturing method thereof
CN107890361B (en) Preparation method of knotting-free surgical suture
KR20230126870A (en) Thread for lifting
KR102229536B1 (en) Embedding thread with prickle and its manufacturing method
KR102111776B1 (en) Medical Suture with Hole
TWI692344B (en) Suture with spiral protrusions and manufacturing method thereof

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant