CN102284123A - Smooth transition catheter for medical use - Google Patents
Smooth transition catheter for medical use Download PDFInfo
- Publication number
- CN102284123A CN102284123A CN2011102278287A CN201110227828A CN102284123A CN 102284123 A CN102284123 A CN 102284123A CN 2011102278287 A CN2011102278287 A CN 2011102278287A CN 201110227828 A CN201110227828 A CN 201110227828A CN 102284123 A CN102284123 A CN 102284123A
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- Prior art keywords
- catheter
- sealing
- inner core
- drain portion
- drainage
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- 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.)
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Links
- 230000007704 transition Effects 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000000407 epitaxy Methods 0.000 claims description 38
- 230000008034 disappearance Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 239000004945 silicone rubber Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 239000004626 polylactic acid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- 206010061218 Inflammation Diseases 0.000 abstract description 3
- 230000004054 inflammatory process Effects 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract 3
- 230000006378 damage Effects 0.000 abstract 2
- 208000014674 injury Diseases 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003467 diminishing effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to a smooth transition catheter for medical use. The smooth transition catheter for medical use comprises a catheter body of which the inside is a hollow cavity, wherein the catheter body is composed of a drainage part arranged in a human body and a sealing part for guiding a drained liquid, and the drainage part is provided with a plurality of drainage channels distributed in the axial direction. The smooth transition catheter for medical use is characterized in that the drainage part and the sealing part form a smooth integrated structure without transition regions. The invention effectively reduces the injury to wound tissues caused by the insertion of the catheter and the withdrawal out of the human body, avoids additional pain brought to patients, and overcomes the defects of a transition type drainage catheter formed by bonding. The catheter body can be made into multiple shapes, an inner core can be made into a cross-shaped, I-shaped or straight one, and the components can be selected according to different requirements. The smooth transition catheter for medical use causes less injury, and has a faster and more thorough drainage process, thereby effectively avoiding inflammation caused by incomplete drainage. Thus, the smooth transition catheter for medical use can be used instead of the transition type drainage catheter formed by bonding on the existing market.
Description
Technical field
The present invention relates to a kind of medical catheter that seamlessly transits, in particular, relate in particular to a kind of drain portion and sealing the medical catheter that seamlessly transits for level and smooth no transition zone integrative-structure.
Background technology
Medical catheter adopts medical macromolecular materials to make mostly at present, as silicone rubber, polyurethane, polrvinyl chloride etc., wherein these two kinds of macromolecular materials of silicone rubber and polyurethane have excellent biocompatibility, have not and useful performance such as bodily tissue is bonding, so aspect medical, be widely used.Medical catheter on the market is of a great variety at present, and it is circular common hollow tubing conductor that section is arranged, and the shape tube of center band cannelure is also arranged, and also often the conduits join of two kinds of forms is used clinically, forms a kind of band transitional type medical catheter.This band transitional type medical catheter, be that two kinds of pipes are docked at port, entangle with a sleeve pipe at seam then, stick with glue between sleeve pipe and the two kinds of pipes and connect, the shape tube of band cannelure partly places the wound during use, and hollow tubing conductor places external connection one drain liquid container.This transitional type medical catheter, in the meeting chap of the junction of two kinds of pipes, and technique for sticking is difficult to control and quantizes, with glue lacked cause easily using in conduit get loose, and with glue many obvious step can appear between sleeve pipe and conduit, bring misery thereby can enlarge wound when causing conduit in body, to be extracted to patient, bring inconvenience therefore for clinical use.
Summary of the invention
The present invention provides a kind of drain portion and the sealing medical catheter that seamlessly transits for level and smooth no transition zone integrative-structure in order to overcome the shortcoming of above-mentioned technical problem.
The medical catheter that seamlessly transits of the present invention, comprise the inner catheter body of cavity that is, this catheter body is by the sealing that places people intravital drain portion and the liquid of drain is derived, offer some drainage troughs that distribute along its axis direction in the described drain portion, its special feature is: described drain portion and sealing are the level and smooth integrative-structure in no transition zone.Drain portion is used to be placed on human body wound tissue place, and the outer surface of sealing is a sealed integral structure; The tissue place waits that getting rid of material enters in the internal cavities of drain portion by drainage trough, and then excretes by the cavity in the sealing.The position that drain portion is connected with sealing is the integrative-structure in level and smooth no transition zone, the cross-sectional area that is the position that is connected with sealing of drain portion equates, adopt this structure, reduced body effectively inserting and extract when human body wound tissue locates, reduced misery patient to the wound of wound.
The medical catheter that seamlessly transits of the present invention, described drain portion constitutes by some epitaxy parts with inner core that epitaxy part fixes, forms drainage trough between adjacent two epitaxy parts, is formed for the outer flow passage that liquid is flow backwards between inner core and the epitaxy part.Owing to formed drainage trough between adjacent two epitaxy parts, make epitaxy part lose support, inner core is used to realize the supporting role to epitaxy part; Drainage trough has enlarged the area that liquid in the tissue enters outer flow passage, makes the drain more thorough.
The medical catheter that seamlessly transits of the present invention, the cross sectional shape of described drain portion and sealing is circle or ellipse, and the cross sectional shape of described inner core is a cross, and the number of described epitaxy part is four; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes gradually until disappearance, the cross inner core gradually attenuation until disappearance.Inner core adopts cross shape, and fixes with four epitaxy parts respectively; Drainage trough be designed to by the end to the diminishing form in the contacted position of sealing, meet the requirement of processing technique, the cross inner core is designed to the form of attenuation gradually, has both realized the support to epitaxy part, has also guaranteed the outflow of liquid.
The medical catheter that seamlessly transits of the present invention, the cross sectional shape of described drain portion and sealing is circle or ellipse, and the cross sectional shape of described inner core is I-shaped, and the number of described epitaxy part is four; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes gradually until disappearance.When adopting I-shaped inner core, this inner core can poling drain portion and the whole body of sealing.
The medical catheter that seamlessly transits of the present invention, the cross sectional shape of described drain portion and sealing is circle or ellipse, and the cross sectional shape of described inner core is an in-line, and the number of described epitaxy part is two; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes gradually until disappearance, the cross inner core gradually attenuation until disappearance.When inner core adopted the in-line structure, the number of epitaxy part should be two, so that fixedly connected with the two ends of in-line inner core.
The medical catheter that seamlessly transits of the present invention, described in-line inner core is provided with some conduction holes.Adopt at inner core under the situation of in-line inner core, conduction hole is set on inner core, help the derivation of liquid more.
The medical catheter that seamlessly transits of the present invention, described catheter body are polrvinyl chloride, polyurethane, silicone rubber or poly-lactic acid material.Adopt medical macromolecular materials such as polrvinyl chloride, polyurethane, silicone rubber or polylactic acid all can satisfy the physical and chemical performance requirement of medical catheter.
The invention has the beneficial effects as follows: the present invention is arranged to smoothly not have the integrative-structure in transition zone by the position that drain portion is connected with sealing, reduced conduit wound to wound tissue when inserting and extracting effectively in human body, when having avoided bringing extra misery to patient, also obtain preferable drainage effect, and overcome the drawback that the bonding transitional type drainage tube of making is produced.Drain of the present invention portion makes drain faster, more thorough by the drainage trough that some width gradually change is set, and has effectively avoided because drain not exclusively causes the generation of inflammation situation.Catheter body of the present invention can be made multiple shape, and inner core can be done across, I-shaped or in-line, chooses according to different demands.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment among the present invention;
Figure 1A, Figure 1B are respectively the structural representation in A-A cross section and B-B cross section;
Fig. 2 is the structural representation of second kind of embodiment among the present invention;
Fig. 2 A, Fig. 2 B are respectively the structural representation in C-C cross section and D-D cross section;
Fig. 3 is the structural representation of the third embodiment among the present invention;
Fig. 3 A, Fig. 3 B are respectively the structural representation in E-E cross section and F-F cross section;
Fig. 4 is the perspective view of first kind of embodiment among the present invention;
Fig. 5 is the perspective view of second kind of embodiment among the present invention;
Fig. 6 is the perspective view of the third embodiment among the present invention.
Among the figure: 1 catheter body, 2 drain portions, 3 sealings, 4 drainage troughs, 5 epitaxy parts, 6 inner cores, 7 outer flow passages, 8 conduction holes.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Fig. 2 and Fig. 3 have provided the structural representation in A-A cross section and B-B cross section in the present embodiment respectively, and shown inner core 6 is positioned among the drain portion 2, be cross shape; The periphery of cross inner core 6 is four epitaxy parts 5, forms drainage trough 4 between adjacent two epitaxy parts 5, and drainage trough 4 has increased the contact area of drain portion 2 with tissue, helps drain more.Cross inner core 6 and epitaxy part 5 just formed outer flow passage 7, outer flow passage 7 will be sent in the cavity of sealing 3 by the liquid that drainage trough 4 enters, and then flow out external.The liquid for the treatment of drain like this just can flow out external through after drainage trough 4, outer flow passage 7 and the sealing 3.In order to satisfy the requirement of processing technology, the width of shown drainage trough 4 by the end to narrowing down gradually until disappearance with sealing 3 contacted positions, cross inner core 6 by the end to sealing 3 contacted positions gradually attenuation until disappearance.Drainage trough 4 adopts the width form of alternation gradually, can not only guarantee the effect of drain, also meets the requirement of processing technique; Inner core 6 adopts the thickness form of alternation gradually, can not only guarantee the supporting role to epitaxy part 5, also meets the requirement of processing technology, is convenient to process the catheter body 1 that meets dimensional requirement.The material of catheter body 1 can be medical macromolecular materials such as polrvinyl chloride, polyurethane, silicone rubber or poly-lactic acid material.
The cross section of the catheter body 1 that provides among the figure of present embodiment also can be made into ellipse to catheter body 1 by changing the size of cross inner core 6 for circular.
Shown in Fig. 2 A and Fig. 2 B, provided the structural representation in C-C cross section and D-D cross section in second kind of enforcement respectively, drain portion 2 and sealing 3 cross sections be shaped as ellipse, shown I-shaped inner core 6 all has setting in drain portion 2 and sealing 3.Form drainage trough 4 between the two shown adjacent epitaxy parts 5, formed outer flow passage 7 between I-shaped inner core 6 and the epitaxy part 5.In order to satisfy the requirement of processing technology, drainage trough 4 by the end position of drain portion 2 to reducing gradually until disappearance with sealing 3 contacted position width, drainage trough 4 adopts the form of this width alternation, can not only realize good drainage effect, also meet the processing technology thereof requirement, help processing from drain portion 2 to sealing 3 and be the catheter body 1 of seamless transition.In the process of the width gradual change of drainage trough 4, the size of I-shaped inner core is not done variation.In the process of using, treat that the liquid of drain flow in the outer flow passage 7 through drainage trough 4, the drain through outer flow passage 7 enters in the cavity of sealing 3 again, finally excretes.
The material of catheter body 1 can be medical macromolecular materials such as polrvinyl chloride, polyurethane, silicone rubber or poly-lactic acid material.The cross section of the catheter body 1 that provides among the figure of present embodiment also can be made into circle to catheter body 1 by changing the size of cross inner core 6 for oval.
Having provided the structural representation in E-E cross section and F-F cross section respectively as Fig. 3 A and 3B, constituted drainage trough 4 between the two shown epitaxy parts 5, is outer flow passage 7 between in-line inner core 6 and the epitaxy part 5; Drainage trough 4 has enlarged the contact area of human body wound and outer flow passage 7, helps more treating that draining fluids enters into outer flow passage 7.Also be provided with some conduction holes 8 on the shown in-line kernel 6.Shown in the width of drainage trough 4 by the end of drain portion 2 to diminishing gradually, until disappearance with the contacted position of sealing; The thickness of in-line inner core 6 by the end of drain portion 2 to diminishing gradually, until disappearance with sealing 3 contacted positions; The grading structure of drainage trough 4 and in-line inner core 6 helps realizing the seamless transition of drain portion 2 to sealing 3.In the process of using, treat that the liquid of drain flow in the outer flow passage 7 through drainage trough 4, the drain through outer flow passage 7 enters in the cavity of sealing 3 again, finally excretes.
What above-mentioned three embodiment provided seamlessly transits the distortion medical catheter in the process of making, and uses the extrusion molding of medical grade macromolecular material.In extrusion, by control, the section of extruding body is changed in the adjustment process to inner core 6 to inner core 6, be tapered as its inner core 6 of may command among the embodiment 1, control drainage trough 4 simultaneously and seal gradually; Its drainage trough 4 of embodiment 2 master controls seals gradually, and I-shaped inner core 6 does not change.The external diameter of the catheter body of extruding 1 can not change in this change procedure, so the monnolithic case of conduit does not smoothly have distortion.
The transitional type drainage tube that the type that seamlessly transits medical catheter among the present invention can replace bonding one-tenth on the existing market uses.During use, one section (one section on left side of Fig. 1, Fig. 2 and Fig. 3) having a water jacket stretched into body and is built in the wound drain.Because this medical catheter profile does not smoothly have distortion, wound is enlarged, make drainage effect better, neither can bring extra misery to patient, also avoid the generation of the inflammation that drain not exclusively causes, overcome the bonding transitional type drainage tube drawback of making clinically.
Claims (7)
1. one kind seamlessly transits medical catheter, comprise the inner catheter body of cavity (1) that is, this catheter body is by the sealing (3) that places the intravital drain of a people portion (2) and a further drain, offer some drainage troughs (4) that distribute along its axis direction in the described drain portion (2), it is characterized in that: described drain portion (2) and the integrative-structure of sealing (3) for level and smooth no transition zone.
2. the medical catheter that seamlessly transits according to claim 1, it is characterized in that: described drain portion (2) is made of some epitaxy parts (5) and the inner core (6) that fixes with epitaxy part, form drainage trough (4) between adjacent two epitaxy parts (5), be formed for the outer flow passage (7) that liquid is flow backwards between inner core and the epitaxy part.
3. the medical catheter that seamlessly transits according to claim 2, it is characterized in that: the cross sectional shape of described drain portion (2) and sealing (3) is circle or ellipse, the cross sectional shape of described inner core (6) is a cross, and the number of described epitaxy part (5) is four; From the end of drain portion (2) to the contacted position of sealing (3), the width of drainage trough (4) diminishes gradually until disappearance, cross inner core (6) gradually attenuation until disappearance.
4. the medical catheter that seamlessly transits according to claim 2, it is characterized in that: the cross sectional shape of described drain portion (2) and sealing (3) is circle or ellipse, the cross sectional shape of described inner core (6) is I-shaped, and the number of described epitaxy part (5) is four; From the end of drain portion (2) to the contacted position of sealing (3), the width of drainage trough (4) diminishes gradually until disappearance.
5. the medical catheter that seamlessly transits according to claim 2, it is characterized in that: the cross sectional shape of described drain portion (2) and sealing (3) is circle or ellipse, the cross sectional shape of described inner core (6) is an in-line, and the number of described epitaxy part (5) is two; From the end of drain portion (2) to the contacted position of sealing (3), the width of drainage trough (4) diminishes gradually until disappearance, cross inner core (6) gradually attenuation until disappearance.
6. the medical catheter that seamlessly transits according to claim 5 is characterized in that: described in-line inner core (6) is provided with some conduction holes (8).
7. according to claim 3, the 4 or 5 described medical catheters that seamlessly transit, it is characterized in that: described catheter body is polrvinyl chloride, polyurethane, silicone rubber or poly-lactic acid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102278287A CN102284123A (en) | 2011-08-10 | 2011-08-10 | Smooth transition catheter for medical use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102278287A CN102284123A (en) | 2011-08-10 | 2011-08-10 | Smooth transition catheter for medical use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284123A true CN102284123A (en) | 2011-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102278287A Pending CN102284123A (en) | 2011-08-10 | 2011-08-10 | Smooth transition catheter for medical use |
Country Status (1)
| Country | Link |
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| CN (1) | CN102284123A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143108A (en) * | 2013-01-28 | 2013-06-12 | 郑州迪奥医学技术有限公司 | High-flow anti-blockage drainage pipe |
| CN104800962A (en) * | 2015-05-07 | 2015-07-29 | 湖南三瑞生物科技有限责任公司 | Drainage tube and flushing guide pipe |
| CN105126232A (en) * | 2015-09-23 | 2015-12-09 | 苏州新区明基高分子医疗器械有限公司 | Novel press-resistant drainage round tube |
| CN105288825A (en) * | 2015-09-23 | 2016-02-03 | 苏州新区明基高分子医疗器械有限公司 | Novel anti-pressing flat drainage tube |
| CN107718486A (en) * | 2017-11-09 | 2018-02-23 | 济南晨生医用硅橡胶制品有限公司 | A kind of silicon rubber dimorphism pipe Integral molding device for insoles |
| CN108421144A (en) * | 2018-04-11 | 2018-08-21 | 辛建 | A kind of multi-purpose type Y shape extrusion-resisting type drainage tube |
| CN113082473A (en) * | 2021-05-08 | 2021-07-09 | 宁波市第一医院 | External drainage catheter for operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB105038A (en) * | 1916-11-04 | 1917-03-29 | James Alexander Liddell | Improvements in Surgical Drainage Appliances. |
| US4398910A (en) * | 1981-02-26 | 1983-08-16 | Blake L W | Wound drain catheter |
| US4465481A (en) * | 1981-02-26 | 1984-08-14 | Innovative Surgical Products, Inc. | Single piece wound drain catheter |
| US5116310A (en) * | 1990-07-30 | 1992-05-26 | Helix Medical, Inc. | Multiple lumen wound drain with bypass openings |
| CN201481955U (en) * | 2009-07-31 | 2010-05-26 | 山东百多安医疗器械有限公司 | Non-transition deformation medical catheter |
| CN202185047U (en) * | 2011-08-10 | 2012-04-11 | 山东峰源医用材料有限公司 | Medical smooth transitional catheter |
-
2011
- 2011-08-10 CN CN2011102278287A patent/CN102284123A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB105038A (en) * | 1916-11-04 | 1917-03-29 | James Alexander Liddell | Improvements in Surgical Drainage Appliances. |
| US4398910A (en) * | 1981-02-26 | 1983-08-16 | Blake L W | Wound drain catheter |
| US4465481A (en) * | 1981-02-26 | 1984-08-14 | Innovative Surgical Products, Inc. | Single piece wound drain catheter |
| US5116310A (en) * | 1990-07-30 | 1992-05-26 | Helix Medical, Inc. | Multiple lumen wound drain with bypass openings |
| CN201481955U (en) * | 2009-07-31 | 2010-05-26 | 山东百多安医疗器械有限公司 | Non-transition deformation medical catheter |
| CN202185047U (en) * | 2011-08-10 | 2012-04-11 | 山东峰源医用材料有限公司 | Medical smooth transitional catheter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143108A (en) * | 2013-01-28 | 2013-06-12 | 郑州迪奥医学技术有限公司 | High-flow anti-blockage drainage pipe |
| CN104800962A (en) * | 2015-05-07 | 2015-07-29 | 湖南三瑞生物科技有限责任公司 | Drainage tube and flushing guide pipe |
| CN105126232A (en) * | 2015-09-23 | 2015-12-09 | 苏州新区明基高分子医疗器械有限公司 | Novel press-resistant drainage round tube |
| CN105288825A (en) * | 2015-09-23 | 2016-02-03 | 苏州新区明基高分子医疗器械有限公司 | Novel anti-pressing flat drainage tube |
| CN107718486A (en) * | 2017-11-09 | 2018-02-23 | 济南晨生医用硅橡胶制品有限公司 | A kind of silicon rubber dimorphism pipe Integral molding device for insoles |
| CN108421144A (en) * | 2018-04-11 | 2018-08-21 | 辛建 | A kind of multi-purpose type Y shape extrusion-resisting type drainage tube |
| CN113082473A (en) * | 2021-05-08 | 2021-07-09 | 宁波市第一医院 | External drainage catheter for operation |
| CN113082473B (en) * | 2021-05-08 | 2022-07-29 | 宁波市第一医院 | External drainage catheter for operation |
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Application publication date: 20111221 |