CN109350154A - A kind of medical belt needle elastic force suture - Google Patents
A kind of medical belt needle elastic force suture Download PDFInfo
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- CN109350154A CN109350154A CN201811539478.6A CN201811539478A CN109350154A CN 109350154 A CN109350154 A CN 109350154A CN 201811539478 A CN201811539478 A CN 201811539478A CN 109350154 A CN109350154 A CN 109350154A
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- suture
- sewing needle
- parts
- needle
- tail end
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-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets 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
- A61B17/06004—Means for attaching suture to needle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets 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
- A61B17/06166—Sutures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
- A61L17/06—At least partially resorbable materials
- A61L17/08—At least partially resorbable materials of animal origin, e.g. catgut, collagen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
- A61L17/06—At least partially resorbable materials
- A61L17/10—At least partially resorbable materials containing macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
- A61L17/06—At least partially resorbable materials
- A61L17/10—At least partially resorbable materials containing macromolecular materials
- A61L17/12—Homopolymers or copolymers of glycolic acid or lactic acid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
- A61L17/14—Post-treatment to improve physical properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
- D02G3/448—Yarns or threads for use in medical applications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets 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
- A61B17/06004—Means for attaching suture to needle
- A61B2017/06033—Means for attaching suture to needle using adhesives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets 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
- A61B17/06166—Sutures
- A61B2017/0618—Sutures elastic, e.g. stretchable
Abstract
The invention proposes a kind of medical belt needle elastic force sutures, including sewing needle and suture, the tail end of sewing needle and one end of suture bond together, the transition position of suture and sewing needle tail end smoothly transits, the diameter of sewing needle tail end becomes smaller, the tail end of sewing needle is equipped with bulge loop, groove, one of convex block is a variety of, its raw material of suture includes following components by weight: 20.5-35.8 parts of polyglycolic acid, 1.2-3.5 parts of chitosan, 12.5-17.5 parts of polylactic acid, 1.0-2.2 parts of fibroin albumen, 7.5-9.7 parts of salmon collagen, 1.7-2.5 parts of crosslinking agent, 1.2-2.5 parts of stabilizer, 2.1-3.7 parts of antibacterial agent, suture has elasticity, the tension of suture is kept after tissue detumescence, guarantee the healing of wound；One end of suture and the tail end of sewing needle bond together, so that pin hole and suture fitting are close, not easy infection at pin hole.
Description
Technical field
The present invention relates to the field of medical instrument technology, specially a kind of medical belt needle elastic force suture.
Background technique
The basis of surgical operation first is that tissue is drawn together again using suture, remain tissue desired
Form is until it can heal；Suture is exactly to be introduced into the external structure (band suture) of high-tensile in principle
To keep these pieces close to until can form scar in isolated multi-disc tissue, thus the company of foundation between organizations
Continuous property and intensity.Suture is initially provided of the repairing of full strength, and organization healing reaches elapsed time before its maximum intensity
Depending on for by the suture of tissue approximation.
It is existing tie line it is nonelastic, ligation tension it is little, ligation tissue detumescence after knot it is easy to fall off；In the prior art, it stitches
Zygonema passes through the pin hole of sewing needle, and the suture and sewing needle of folding make pin hole excessive, and pin hole and suture fitting be not close,
Infection is easy at pin hole.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of medical belt needle elastic force suture, seam
Zygonema has elasticity, and the tension of suture is kept after tissue detumescence, guarantees the healing of wound；One end of suture and sewing needle
Tail end bonds together, so that pin hole and suture fitting are close, not easy infection at pin hole can be solved effectively in background technique
The problem of.
To achieve the above object, the present invention proposes: a kind of medical belt needle elastic force suture, including sewing needle and suture,
The tail end of sewing needle and one end of suture bond together, and the transition position of suture and sewing needle tail end smoothly transits.
As a preferred technical solution of the present invention: the diameter of sewing needle tail end becomes smaller.
As a preferred technical solution of the present invention: the tail end of sewing needle be equipped with one of bulge loop, groove, convex block or
It is a variety of.
As a preferred technical solution of the present invention: its raw material of suture includes following components by weight: poly- hydroxyl
20.5-35.8 parts of acetic acid, 1.2-3.5 parts of chitosan, 12.5-17.5 parts of polylactic acid, 1.0-2.2 parts of fibroin albumen, salmon collagen
7.5-9.7 parts, 1.7-2.5 parts of crosslinking agent, 1.2-2.5 parts of stabilizer, 2.1-3.7 parts of antibacterial agent.
As a preferred technical solution of the present invention: connection agent is hydroxy-ethyl acrylate, hydroxypropyl acrylate, metering system
One of acid or hydroxy propyl methacrylate are a variety of.
As a preferred technical solution of the present invention: stabilizer is epoxidized soybean oil.
As a preferred technical solution of the present invention: antibacterial agent is tea oil or Rosa Damascana.
The present invention also provides a kind of preparation methods of medical belt needle elastic force suture, comprising the following steps:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle is connected on the spinneret orifice on thin hole spinneret, and sewing needle leans on the position of caudal part
The weight of fixed floating material, floating material and sewing needle is greater than the buoyancy that floating material and sewing needle are subject in water, dredges hole spinneret
Above cooling water, floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The thin hole spinneret of 5-35mm, the particle of thawing are flowed out from the spinneret orifice of thin hole spinneret, the initial end of spinneret and sewing needle
After tail end bonding, sewing needle and thin hole spinneret are detached from, sewing needle and floating material are dropped into cooling water, and spinneret is in cooling water
It is cooled into primary filament；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
Compared with prior art, the beneficial effects of the present invention are: suture has elasticity, suture is kept after tissue detumescence
Tension, guarantee the healing of wound；One end of suture and the tail end of sewing needle bond together, so that pin hole and suture patch
Close close, not easy infection at pin hole.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of medical belt needle elastic force suture of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention the following technical schemes are provided:
Embodiment one:
A kind of medical belt needle elastic force suture, including sewing needle 1 and suture 2, the tail end of sewing needle 1 and one end of suture 2
It bonds together, the transition position of 1 tail end of suture 2 and sewing needle smoothly transits.
The diameter of 1 tail end of sewing needle becomes smaller.
The tail end of sewing needle 1 is equipped with bulge loop and groove, so that sewing needle 1 and suture 2 are connected firmly.
Its raw material of suture 2 includes following components by weight: 20.5 parts of polyglycolic acid, 1.2 parts of chitosan, polylactic acid
12.5 parts, 1.0 parts of fibroin albumen, 7.5 parts of salmon collagen, 1.7 parts of crosslinking agent, 1.2 parts of stabilizer, 2.1 parts of antibacterial agent.
Crosslinking agent is the mixture of hydroxy-ethyl acrylate, hydroxypropyl acrylate, methacrylic acid.
Stabilizer is epoxidized soybean oil.
Antibacterial agent is tea oil.
A kind of preparation method of medical belt needle elastic force suture, comprising the following steps:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle 1 is connected on the spinneret orifice on thin hole spinneret, and sewing needle 1 leans on the position of caudal part
Set fixed floating material, the weight of floating material and sewing needle 1 is greater than the buoyancy that floating material and sewing needle 1 are subject in water, dredges hole spray
Filament plate is located above cooling water, and floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The thin hole spinneret of 5-35mm, the particle of thawing are flowed out from the spinneret orifice of thin hole spinneret, the initial end of spinneret and sewing needle 1
After tail end bonding, sewing needle 1 and thin hole spinneret are detached from, sewing needle 1 and floating material are dropped into cooling water, and spinneret is in cooling water
In be cooled into primary filament；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
Embodiment two:
A kind of medical belt needle elastic force suture, including sewing needle 1 and suture 2, the tail end of sewing needle 1 and one end of suture 2
It bonds together, the transition position of 1 tail end of suture 2 and sewing needle smoothly transits.
The diameter of 1 tail end of sewing needle becomes smaller.
The tail end of sewing needle 1 is equipped with bulge loop and groove, so that sewing needle 1 and suture 2 are connected firmly.
Its raw material of suture 2 includes following components by weight: 27.1 parts of polyglycolic acid, 2.3 parts of chitosan, polylactic acid
13.8 parts, 1.8 parts of fibroin albumen, 8.2 parts of salmon collagen, 1.9 parts of crosslinking agent, 2.1 parts of stabilizer, 2.8 parts of antibacterial agent.
Crosslinking agent is methacrylic acid.
Stabilizer is epoxidized soybean oil.
Antibacterial agent is Rosa Damascana.
A kind of preparation method of medical belt needle elastic force suture, comprising the following steps:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle 1 is connected on the spinneret orifice on thin hole spinneret, and sewing needle 1 leans on the position of caudal part
Set fixed floating material, the weight of floating material and sewing needle 1 is greater than the buoyancy that floating material and sewing needle 1 are subject in water, dredges hole spray
Filament plate is located above cooling water, and floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The thin hole spinneret of 5-35mm, the particle of thawing are flowed out from the spinneret orifice of thin hole spinneret, the initial end of spinneret and sewing needle 1
After tail end bonding, sewing needle 1 and thin hole spinneret are detached from, sewing needle 1 and floating material are dropped into cooling water, and spinneret is in cooling water
In be cooled into primary filament；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
Embodiment three:
A kind of medical belt needle elastic force suture, including sewing needle 1 and suture 2, the tail end of sewing needle 1 and one end of suture 2
It bonds together, the transition position of 1 tail end of suture 2 and sewing needle smoothly transits.
The diameter of 1 tail end of sewing needle becomes smaller.
The tail end of sewing needle 1 is equipped with bulge loop and groove, so that sewing needle 1 and suture 2 are connected firmly.
Its raw material of suture 2 includes following components by weight: 32.7 parts of polyglycolic acid, 3.2 parts of chitosan, polylactic acid
115.7 parts, 1.9 parts of fibroin albumen, 8.7 parts of salmon collagen, 2.3 parts of crosslinking agent, 2.3 parts of stabilizer, 3.2 parts of antibacterial agent.
Crosslinking agent is hydroxy propyl methacrylate.
Stabilizer is epoxidized soybean oil.
Antibacterial agent is tea oil.
A kind of preparation method of medical belt needle elastic force suture, comprising the following steps:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle 1 is connected on the spinneret orifice on thin hole spinneret, and sewing needle 1 leans on the position of caudal part
Set fixed floating material, the weight of floating material and sewing needle 1 is greater than the buoyancy that floating material and sewing needle 1 are subject in water, dredges hole spray
Filament plate is located above cooling water, and floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The thin hole spinneret of 5-35mm, the particle of thawing are flowed out from the spinneret orifice of thin hole spinneret, the initial end of spinneret and sewing needle 1
After tail end bonding, sewing needle 1 and thin hole spinneret are detached from, sewing needle 1 and floating material are dropped into cooling water, and spinneret is in cooling water
In be cooled into primary filament；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
Example IV:
A kind of medical belt needle elastic force suture, including sewing needle 1 and suture 2, the tail end of sewing needle 1 and one end of suture 2
It bonds together, the transition position of 1 tail end of suture 2 and sewing needle smoothly transits, and mitigates the pain that patient is subject to when suture passes through
It is bitter.
The diameter of 1 tail end of sewing needle becomes smaller.
The tail end of sewing needle 1 is equipped with bulge loop and groove, so that sewing needle 1 and suture 2 are connected firmly.
Its raw material of suture 2 includes following components by weight: 20.5-35.8 parts of polyglycolic acid, 3.5 parts of chitosan,
17.5 parts of polylactic acid, 2.2 parts of fibroin albumen, 9.7 parts of salmon collagen, 2.5 parts of crosslinking agent, 2.5 parts of stabilizer, 3.7 parts of antibacterial agent.
Crosslinking agent is methacrylic acid.
Stabilizer is epoxidized soybean oil.
Antibacterial agent is tea oil.
A kind of preparation method of medical belt needle elastic force suture, comprising the following steps:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle 1 is connected on the spinneret orifice on thin hole spinneret, and sewing needle 1 leans on the position of caudal part
Set fixed floating material, the weight of floating material and sewing needle 1 is greater than the buoyancy that floating material and sewing needle 1 are subject in water, dredges hole spray
Filament plate is located above cooling water, and floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The thin hole spinneret of 5-35mm, the particle of thawing are flowed out from the spinneret orifice of thin hole spinneret, the initial end of spinneret and sewing needle 1
After tail end bonding, sewing needle 1 and thin hole spinneret are detached from, sewing needle 1 and floating material are dropped into cooling water, and spinneret is in cooling water
In be cooled into primary filament；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
The weight of floating material and sewing needle 1 is slightly larger than the buoyancy that floating material and sewing needle 1 are subject in water, floating material and seam
Closing needle 1 can slowly fall in water, and floating material can be wooden unit, plastic foam plate, baton round etc..
Suture 2 can be absorbed by tissue at 3-5 months, and suture has elasticity.
Benefit of the present invention: suture 2 keeps the tension of suture 2 with elasticity after tissue detumescence, guarantee being cured for wound
It closes；One end of suture 2 and the tail end of sewing needle 1 bond together, so that pin hole and suture 2 are bonded closely, at pin hole not
Easy infection.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of medical belt needle elastic force suture, including sewing needle (1) and suture (2), which is characterized in that sewing needle (1)
One end of tail end and suture (2) bonds together, and the transition position of suture (2) and sewing needle (1) tail end smoothly transits.
2. a kind of medical belt needle elastic force suture according to claim 1, it is characterised in that: sewing needle (1) tail end
Diameter become smaller.
3. a kind of medical belt needle elastic force suture according to claim 1, it is characterised in that: the tail of the sewing needle (1)
End is equipped with one of bulge loop, groove, convex block or a variety of.
4. a kind of medical belt needle elastic force suture according to claim 1, it is characterised in that: its original of the suture (2)
Material includes following components: 20.5-35.8 parts of polyglycolic acid, 1.2-3.5 parts of chitosan, polylactic acid 12.5-17.5 by weight
Part, 1.0-2.2 parts of fibroin albumen, 7.5-9.7 parts of salmon collagen, 1.7-2.5 parts of crosslinking agent, 1.2-2.5 parts of stabilizer, antibacterial agent
2.1-3.7 part.
5. a kind of medical belt needle elastic force suture according to claim 4, it is characterised in that: the crosslinking agent is acrylic acid
One of hydroxyl ethyl ester, hydroxypropyl acrylate, methacrylic acid or hydroxy propyl methacrylate are a variety of.
6. a kind of medical belt needle elastic force suture according to claim 4, it is characterised in that: stabilizer is epoxy soybean
Oil.
7. a kind of medical belt needle elastic force suture according to claim 4, it is characterised in that: the antibacterial agent is tea oil
Or Rosa Damascana.
8. a kind of preparation method of medical belt needle elastic force suture, it is characterised in that: the following steps are included:
S1 it) stocks up: weighing polyglycolic acid, chitosan, polylactic acid, fibroin albumen, salmon collagen, crosslinking agent, steady by weight
Determine agent, antibacterial agent；
S2 it) mixes: each component being added in reaction kettle, 85-97 DEG C is heated to, is constantly stirred under the revolving speed of 250-350r/min
It mixes, stirs 3h, obtain mixture；
S3): by S2) when obtained mixture is sent into double screw extruder, 150-170 DEG C of extrusion temperature, screw speed 20-
35Hz, twin-screw extrusion batten is water cooled, air-dried, pelletizing, obtains particle；
S4 it) fills needle: the tail end of sewing needle (1) is connected on the spinneret orifice on thin hole spinneret, and sewing needle (1) leans on caudal part
The fixed floating material in position, the weight of floating material and sewing needle (1) is greater than floating material and sewing needle (1) be subject in water it is floating
Power is dredged hole spinneret and is located above cooling water, and floating material is located in cooling water；
S5 it) is bonded: particle made from S3) is heated to 120-130 DEG C, melt it, deaeration, the particle of thawing is by aperture
The particle of the thin hole spinneret of 5-35mm, thawing is flowed out from the spinneret orifice of thin hole spinneret, the initial end and sewing needle (1) of spinneret
Tail end bonding, sewing needle (1) and thin hole spinneret disengaging after, sewing needle (1) and floating material drop into cooling water, and spinneret exists
Primary filament is cooled into cooling water；
S6): by primary filament made from S5) in 12-19 DEG C of water-bath succeeding stretch to get different size Medical absorbable
Suture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539478.6A CN109350154A (en) | 2018-12-17 | 2018-12-17 | A kind of medical belt needle elastic force suture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539478.6A CN109350154A (en) | 2018-12-17 | 2018-12-17 | A kind of medical belt needle elastic force suture |
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| Publication Number | Publication Date |
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| CN109350154A true CN109350154A (en) | 2019-02-19 |
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| CN201811539478.6A Pending CN109350154A (en) | 2018-12-17 | 2018-12-17 | A kind of medical belt needle elastic force suture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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