CN202185047U - Medical smooth transitional catheter - Google Patents
Medical smooth transitional catheter Download PDFInfo
- Publication number
- CN202185047U CN202185047U CN2011202885764U CN201120288576U CN202185047U CN 202185047 U CN202185047 U CN 202185047U CN 2011202885764 U CN2011202885764 U CN 2011202885764U CN 201120288576 U CN201120288576 U CN 201120288576U CN 202185047 U CN202185047 U CN 202185047U
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- Prior art keywords
- catheter
- sealing
- inner core
- drain portion
- drainage
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Abstract
The utility model relates to a medical smooth transitional catheter, which comprises a catheter body with an inner hollow cavity. The catheter body consists of a drainage portion arranged in a human body and a seal portion for guiding drained liquid out, and the drainage portion is provided with a plurality of drainage grooves axially distributed on the drainage portion. The medical smooth transitional catheter is characterized in that the drainage portion and the seal portion are in an integral structure of a smooth transitional area. The medical smooth transitional catheter has the advantages that wound of tissues when the catheter is inserted into and pulled out of the human body can be effectively reduced, and extra pains of patients are avoided while defects of transitional drainage tubes made by adhering are overcome. The catheter body can be made into various shapes, and an internal core can be made into cross-shaped, I-shaped or linear and can be chosen according to different needs. In addition, the smooth transitional medical catheter is small in wound, and quicker and more thorough in drainage, inflammation caused by incomplete drainage is effectively avoided, and the smooth transitional medical catheter can replace the existing transitional drainage tubes made by adhering on the market.
Description
Technical field
This utility model relates to a kind of medical catheter that seamlessly transits, and in particular, relates in particular to a kind of drain portion and the sealing medical catheter that seamlessly transits for level and smooth no transition zone integrative-structure.
Background technology
Medical catheter adopts medical macromolecular materials to process mostly at present; Like 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.Present medical catheter on the market is of a great variety, 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; The meeting chap in 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
This utility model 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.
This utility model seamlessly transit medical catheter; 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 said drain portion, its special feature is: said drain portion and sealing are the regional integrative-structure of level and smooth no transition.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 gets in the internal cavities of drain portion through drainage trough, and then excretes through 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.
This utility model seamlessly transit medical catheter, said 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 of liquid entering outer flow passage in the tissue, makes drain more thorough.
This utility model seamlessly transit medical catheter, the cross sectional shape of said drain portion and sealing is circle or ellipse, the cross sectional shape of said inner core is a cross, the number of said epitaxy part is four; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes until disappearance gradually, 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.
This utility model seamlessly transit medical catheter, the cross sectional shape of said drain portion and sealing is circle or ellipse, the cross sectional shape of said inner core is I-shaped, the number of said epitaxy part is four; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes until disappearance gradually.When adopting I-shaped inner core, this inner core can poling drain portion and the whole body of sealing.
This utility model seamlessly transit medical catheter, the cross sectional shape of said drain portion and sealing is circle or ellipse, the cross sectional shape of said inner core is an in-line, the number of said epitaxy part is two; From the end of drain portion to the contacted position of sealing, the width of drainage trough diminishes until disappearance gradually, 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 be fixedly connected with the two ends of in-line inner core.
This utility model seamlessly transit medical catheter, said 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.
This utility model seamlessly transit medical catheter, said catheter body is 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 beneficial effect of this utility model is: this utility model is arranged to smoothly not have the integrative-structure in transition zone through the position that is connected drain portion with sealing; Reduced conduit wound to wound tissue when inserting and extracting effectively in human body; When having avoided bringing additional pain to patient; Also obtain preferable drainage effect, and overcome the drawback that the bonding transitional type drainage tube of processing is produced.The drain portion of this utility model is through being provided with the drainage trough that some width gradually change, make drain sooner, more thorough, effectively avoided because drain not exclusively causes the generation of inflammation situation.The catheter body of this utility model 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 in this utility model;
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 in this utility model;
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 in this utility model;
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 in this utility model;
Fig. 5 is the perspective view of second kind of embodiment in this utility model;
Fig. 6 is the perspective view of the third embodiment in this utility model.
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
Below in conjunction with accompanying drawing and embodiment this utility model is described further.
Embodiment 1Like Fig. 1 and shown in Figure 4; Provided structural representation and the axonometric chart of first kind of embodiment of this utility model respectively, the medical catheter that seamlessly transits of shown this utility model comprises drain portion 2, sealing 3, drainage trough 4, epitaxy part 5, inner core 6, outer flow passage 7; Constituted catheter body 1 by drain portion 2 with sealing 3, drain portion 2 is provided with four drainage troughs 4, and sealing 3 is that hollow and appearance are the structure of closed state.Drain portion 2 is the integrative-structure in level and smooth no transition zone with sealing 3, on sealing 3 structures, is the nature transition by drain portion 2 promptly, no change on the outside dimension; This structure has reduced conduit wound to wound tissue when inserting and extracting in human body effectively, has avoided bringing additional pain to patient.
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 through the liquid that drainage trough 4 gets into, and then flows out external.The liquid of treating 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 through 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 gets 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 through 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 like 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 gets 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, through control, the section of extruding body is changed in the adjustment process to inner core 6 to inner core 6, be tapered like 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 in this utility model 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 processing 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 said drain portion (2), it is characterized in that: said 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: said drain portion (2) is made up 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 said drain portion (2) and sealing (3) is circle or ellipse; The cross sectional shape of said inner core (6) is a cross, and the number of said 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 until disappearance gradually, 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 said drain portion (2) and sealing (3) is circle or ellipse; The cross sectional shape of said inner core (6) is I-shaped, and the number of said 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 until disappearance gradually.
5. the medical catheter that seamlessly transits according to claim 2; It is characterized in that: the cross sectional shape of said drain portion (2) and sealing (3) is circle or ellipse; The cross sectional shape of said inner core (6) is an in-line, and the number of said 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 until disappearance gradually, cross inner core (6) gradually attenuation until disappearance.
6. the medical catheter that seamlessly transits according to claim 5 is characterized in that: said 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: said catheter body is polrvinyl chloride, polyurethane, silicone rubber or poly-lactic acid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202885764U CN202185047U (en) | 2011-08-10 | 2011-08-10 | Medical smooth transitional catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202885764U CN202185047U (en) | 2011-08-10 | 2011-08-10 | Medical smooth transitional catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185047U true CN202185047U (en) | 2012-04-11 |
Family
ID=45916527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202885764U Expired - Fee Related CN202185047U (en) | 2011-08-10 | 2011-08-10 | Medical smooth transitional catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202185047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284123A (en) * | 2011-08-10 | 2011-12-21 | 山东峰源医用材料有限公司 | Smooth transition catheter for medical use |
| CN104826211A (en) * | 2015-04-09 | 2015-08-12 | 广州新诚生物科技有限公司 | Cross-shaped double-jacketed drainage tube |
-
2011
- 2011-08-10 CN CN2011202885764U patent/CN202185047U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284123A (en) * | 2011-08-10 | 2011-12-21 | 山东峰源医用材料有限公司 | Smooth transition catheter for medical use |
| CN104826211A (en) * | 2015-04-09 | 2015-08-12 | 广州新诚生物科技有限公司 | Cross-shaped double-jacketed drainage tube |
| CN104826211B (en) * | 2015-04-09 | 2018-06-19 | 广州新诚生物科技有限公司 | Cross double-sleeve drainage tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20200810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |