CN101069757B - Two-lay machine-knitted structure textile type artificial blood vessel - Google Patents
Two-lay machine-knitted structure textile type artificial blood vessel Download PDFInfo
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- CN101069757B CN101069757B CN200710041268XA CN200710041268A CN101069757B CN 101069757 B CN101069757 B CN 101069757B CN 200710041268X A CN200710041268X A CN 200710041268XA CN 200710041268 A CN200710041268 A CN 200710041268A CN 101069757 B CN101069757 B CN 101069757B
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Abstract
The present invention relates to a textile type artificial blood vessel with double-layer machine-woven structure. It is characterized by that it includes outer layer machine-woven structure whose water permeability is 1000-3000 ml/sq.cm.min.16kPa and inner layer machine-woven structure whose water permeability is 250-300 ml/sq.cm.min.16kPa, and adopts stitching warp or stitching weft to make theabove-mentioned outer layer machine-woven structure and inner layer machine-woven structure be combined together so as to obtain the invented artificial blood vessel.
Description
Technical field
The present invention relates to a kind of artificial blood vessel, particularly relate to the Weave type artificial blood vessel that a kind of tube wall is the double-layer weaving structure
Background technology
The 1950's,, begun the manufacturing history of Weave type artificial blood vessel since observing cell after the phenomenon of growing on the silk thread of immersion blood.Since then, select suitable fibrous material and ideal fabric construction to become the emphasis of artificial blood vessel research.Today after more than 50 year, Weave type artificial blood vessel has been widely used in clinical, replaces in the human body blood vessel of corrupted, obtains the good medical treatment effect clinically.Yet, though it is clinical that Weave type artificial blood vessel has been widely used in, but promote cell tissue to grow into and the function of tube wall oozing of blood when avoiding performing the operation owing to will take into account simultaneously, seeking desirable textile structural still is the problem of replacement type blood vessel research and development in recent years with the Weave type artificial blood vessel that obtains suitable tube wall hole.
Ideal artificial blood vessel tube wall should have the hole of suitable dimension, both has been beneficial to growing into of cell tissue, can not cause a large amount of oozings of blood in the operation process again because of the existence of hole.Woven or the knitting manufacture method of the general employing of existing Weave type artificial blood vessel, vascular wall is single layer structure.For fear of the tube wall oozing of blood, traditional method is the tightness degree that increases the tube wall textile structural, and human cell tissue grew into after this method was unfavorable for performing the operation.Existing method has two kinds: (1) both can avoid the oozing of blood of operation process tube wall by the method for pre-blood coagulation, and the postoperative autologous tissue of might as well being in the way again grows into, but the process of pre-blood coagulation will spend valuable operating time; (2) method of employing collagen protein or fimbrin, as Chinese patent (publication number CN 1919355A, in February, 2007 and CN 1919356A, in February, 2007) described, hole with coating material sealing artificial blood vessel tube wall, oozing of blood in avoiding performing the operation, and do not influence growing into of operation back cell tissue.But the collagen coating material choose condition restriction such as will being subjected to degradation property, human compatibility, product stock cycle.
Adopting the method that changes vascular wall woven structure structure is a kind of method of controlling pore-size, as Chinese patent (publication number CN 1565394A, in January, 2005) described by adopting the textile structural of strengthening satin weave to make the method for artificial blood vessel, this is a kind of tube wall of single layer structure, the purpose of tube wall oozing of blood when reaching the control operation by interweave frequency and the compactness that improves textile structural, this method may influence growing into smoothly of cell tissue.
Summary of the invention
Technical problem to be solved by this invention provides a kind of two-lay machine-knitted structure textile type artificial blood vessel, tube wall oozing of blood and cell tissue is grown into smoothly in the time of can preventing to perform the operation simultaneously.
Technical scheme
The invention provides a kind of two-lay machine-knitted structure textile type artificial blood vessel, comprise outer machine-knitted structure (1) and the internal layer machine-knitted structure (3) made by polyester filaments, the water percolating capacity of described outer machine-knitted structure is 1000～3000ml/cm
2Min16kPa, the water percolating capacity of described internal layer machine-knitted structure are 150～300ml/cm
2Min16kPa, the binder yarn (2) by warp-wise or broadwise is interweaved outer machine-knitted structure (1) and internal layer machine-knitted structure (3), constitutes the structural pipe wall of an integral body.
Described skin is that the thicker continuous filament yarn that 3/1 twill-weave is selected for use is, organizine is selected the 300dtex/250f polyester filaments for use, and tram is selected the 300dtex/250f polyester filaments for use; Described internal layer is that the thinner continuous filament yarn that 1/3 twill-weave is selected for use is, organizine is selected the 30dtex/24f polyester filaments for use, and tram is selected the 30dtex/24f polyester filaments for use.
The end count of described outer machine-knitted structure (1) is 400/10cm, and filling density is 400/10cm; The end count of internal layer machine-knitted structure (3) is 1000/10cm, and filling density is 1000/10cm.
The structural pipe wall of double-layer weaving structure artificial blood vessel as shown in Figure 1.
Beneficial effect
The feature of the Weave type artificial blood vessel of double-layer weaving structure of the present invention is that the outer field fibre diameter of composition tube wall is thick, the tube wall hole is bigger, and structure is sparse; The fibre diameter of tube wall internal layer is tiny, the tube wall hole is less, and structure is tight.The layer structure that hole is bigger helps growing into of cell tissue, and the less endothecium structure of hole has been avoided the excessive oozing of blood in the operation.Simultaneously, the blood vessel inner layer of being made up of fiber fines helps cell tissue along the superficial growth of person's internal layer.In addition, more solid outer layer fiber material can make artificial blood vessel have enough mechanical performances, satisfy subsequently curling processing and operation technique in to the requirement of blood vessel mechanical performance.
Description of drawings
Fig. 1 double-layer weaving structure artificial blood vessel;
The outer machine-knitted structure 2-of 1-connects yarn 3-internal layer machine-knitted structure
Fig. 2 outer tissue;
Layer tissue in Fig. 3;
The access node of Fig. 4 ectonexine yarn
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Outer machine-knitted structure is 3/1 twill-weave, sees Fig. 2, uses the 300dtex/250f polyester filaments to make warp thread, and the 300dtex/250f polyester filaments is made weft yarn; The internal layer machine-knitted structure is 1/3 twill-weave, sees Fig. 3, makes warp thread with the 30dtex/24f polyester filaments, and the 30dtex/24f polyester filaments is made weft yarn.By binder yarn outer yarn and internal layer yarns interwoven are got up, see Fig. 4.
Weaving tubing on loom.The end count of outer woven fabric is 400/10cm, and filling density is 400/10cm.The end count of internal layer fabric is 1000/10cm, and filling density is 1000/10cm.
Outer field water percolating capacity is 1100ml/cm
2Min16kPa, the water percolating capacity of internal layer are 280ml/cm
2Min16kPa.
Outer machine-knitted structure is 3/1 twill-weave, sees Fig. 2, uses the 300dtex/250f polyester filaments to make warp thread, and the 300dtex/250f polyester filaments is made weft yarn; The internal layer machine-knitted structure is 1/3 twill-weave, sees Fig. 3, makes warp thread with the 30dtex/24f polyester filaments, and the 30dtex/24f polyester filaments is made weft yarn.By binder yarn outer yarn and internal layer yarns interwoven are got up, see Fig. 4.
Weaving tubing on loom.The end count of outer woven fabric is 400/10cm, and filling density is 400/10cm.The end count of internal layer fabric is 1000/10cm, and filling density is 1000/10cm.
Outer field water percolating capacity is 1200ml/cm
2Min16kPa, the water percolating capacity of internal layer are 290ml/cm
2Min16kPa.
Outer machine-knitted structure is 3/1 twill-weave, sees Fig. 2, uses the 300dtex/250f polyester filaments to make warp thread, and the 300dtex/250f polyester filaments is made weft yarn; The internal layer machine-knitted structure is 1/3 twill-weave, sees Fig. 3, makes warp thread with the 30dtex/24f polyester filaments, and the 30dtex/24f polyester filaments is made weft yarn.By binder yarn outer yarn and internal layer yarns interwoven are got up, see Fig. 4.
Weaving tubing on loom.The end count of outer woven fabric is 400/10cm, and filling density is 400/10cm.The end count of internal layer fabric is 1000/10cm, and filling density is 1000/10cm.
Outer field water percolating capacity is 1300ml/cm
2Min16kPa, the water percolating capacity of internal layer are 300ml/cm
2Min16kPa.
Claims (2)
1. a two-lay machine-knitted structure textile type artificial blood vessel comprises outer machine-knitted structure (1) and the internal layer machine-knitted structure (3) made by polyester filaments, and it is characterized in that: the water percolating capacity of described outer machine-knitted structure is 1000～3000ml/cm
2Min16kPa, the water percolating capacity of described internal layer machine-knitted structure are 150～300ml/cm
2Min16kPa, binder yarn (2) by warp-wise or broadwise is interweaved outer machine-knitted structure (1) and internal layer machine-knitted structure (3), constitute the structural pipe wall of an integral body, described skin is 3/1 twill-weave, select thicker continuous filament yarn for use, wherein, organizine is selected the 300dtex/250f polyester filaments for use, and tram is selected the 300dtex/250f polyester filaments for use; Described internal layer is 1/3 twill-weave, selects thinner continuous filament yarn for use, and wherein, organizine is selected the 30dtex/24f polyester filaments for use, and tram is selected the 30dtex/24f polyester filaments for use.
2. a kind of two-lay machine-knitted structure textile type artificial blood vessel according to claim 1 is characterized in that: the end count of described outer machine-knitted structure (1) is 400/10cm, and filling density is 400/10cm; The end count of internal layer machine-knitted structure (3) is 1000/10cm, and filling density is 1000/10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710041268XA CN101069757B (en) | 2007-05-25 | 2007-05-25 | Two-lay machine-knitted structure textile type artificial blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710041268XA CN101069757B (en) | 2007-05-25 | 2007-05-25 | Two-lay machine-knitted structure textile type artificial blood vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101069757A CN101069757A (en) | 2007-11-14 |
| CN101069757B true CN101069757B (en) | 2010-11-17 |
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| CN200710041268XA Expired - Fee Related CN101069757B (en) | 2007-05-25 | 2007-05-25 | Two-lay machine-knitted structure textile type artificial blood vessel |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011238B (en) * | 2010-11-11 | 2012-10-10 | 东华大学 | Machine woven artificial trachea |
| CN102206888B (en) * | 2011-05-30 | 2012-11-07 | 东华大学 | Integrally formed three-layer woven simulation artificial blood vessel |
| CN105873622B (en) * | 2013-12-16 | 2019-12-31 | 卫材R&D管理有限公司 | Vascular reconstruction graft material |
| CA2933676A1 (en) * | 2013-12-18 | 2015-06-25 | Toray Industries, Inc. | Vascular prothesis |
| CN105031735B (en) * | 2015-06-24 | 2018-01-19 | 东华大学 | A kind of three-layer composite structure small-caliber artificial blood vessel and preparation method thereof |
| CN105030372B (en) * | 2015-08-31 | 2017-03-01 | 东华大学 | Partial gradient structural vessel support overlay film towards orthotopic fenestration and preparation method thereof |
| CN110592770B (en) * | 2019-08-09 | 2022-05-24 | 深圳市骏鼎达新材料股份有限公司 | Thermal shrinkage protective sleeve |
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2007
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Granted publication date: 20101117 Termination date: 20130525 |