CN103800951B - The generation method of drainage catheter and superslide coating thereof - Google Patents
The generation method of drainage catheter and superslide coating thereof Download PDFInfo
- Publication number
- CN103800951B CN103800951B CN201410033405.5A CN201410033405A CN103800951B CN 103800951 B CN103800951 B CN 103800951B CN 201410033405 A CN201410033405 A CN 201410033405A CN 103800951 B CN103800951 B CN 103800951B
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- China
- Prior art keywords
- catheter body
- catheter
- head
- flow sub
- superslide coating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
Abstract
The invention discloses a kind of drainage catheter, the puncture needle that comprises the catheter body of flow sub, inner hollow and be arranged in catheter body and removably connect with this flow sub, this catheter body comprises elastic portion and hard head, this elastic portion one end connects flow sub, and the other end is connected with hard head; This hard head has opening, and this puncture needle runs through described opening; The outer surface of this catheter body is provided with superslide coating. The invention also discloses a kind of generation method of superslide coating, adopt the composite coupler preparing to carry out pretreatment to catheter body, recycle hydrophilic unsaturated polymer solution and apply, and dry. The generation method of drainage catheter of the present invention and superslide coating thereof can be avoided out skin operation, directly pierces through, and reduces tissue damage, convenient nursing.
Description
Technical field
The present invention relates to medical devices technical field, particularly relate to a kind of drainage catheter and superslide coating thereofGeneration method.
Background technology
Drainage catheter is for hydrops, the pneumatosis drainage of the human intracavity such as in thoracic cavity, abdominal cavity, pelvic cavity or internal organs.When the lubricity on body surface is not enough, easy damaged tissue causes bleeding and infects, current mostly adopt hydrophilic superSliding coating is done surface treatment, but existing hydrophilic superslide drainage tube still needs first to open skin behaviour in the time of punctureDo, can there is the situation of sepage or infection in the position of holding skin in the time of nursing. And the superslide coating of existing conduitPersistence is short, and general conduit moves 5 left and right and will lose efficacy, and is unfavorable for movement, the rotation of clinical careOperation.
Summary of the invention
Based on this, be necessary for prior art defect, provide one can avoid out skin operation, directly thornWear, reduce tissue damage, the generation method of the drainage catheter of convenient nursing and superslide coating thereof.
Its technical scheme is as follows.
A kind of drainage catheter, comprises the catheter body of flow sub, inner hollow and is arranged in catheter bodyAnd the puncture needle removably connecting with this flow sub, this catheter body comprises elastic portion and hard head, shouldElastic portion one end connects flow sub, and the other end is connected with hard head; This hard head has opening,This puncture needle runs through described opening; The outer surface of this catheter body is provided with superslide coating. The technical program is drawnIn conduit, be provided with the puncture needle removably connecting, hard head has opening, and puncture needle runs through opening.The opening hard head that is provided with of catheter body coordinates puncture needle, and drainage catheter can directly pierce through skin and subcutaneousTissue, need to, opening skin operation, completing after puncture, not take apart puncture needle. Meanwhile,Be provided with superslide coating to the surface of tube body, make conduit stop body in time increase, conveniently protectReason.
In an embodiment, in described catheter body, be provided with side opening therein, described side opening and conduit are originallyThe inner chamber of body communicates. Hydrops, pneumatosis in body enter the inner chamber of catheter body, then connect from drainage by side openingHead excretes.
Therein in an embodiment, described elastic portion comprises straight long section and bending section, described side opening setting withOn described bending section. Elastic portion comprises straight long section and bending section, and in the situation that not being subject to external force, bending section isThe bending such as wholecircle or semicircle.
In an embodiment, described puncture needle comprises head and the needle tubing through flow harden processing therein,Described needle tubing and head interconnect, and described head and flow sub removably connect. Needle tubing is hard through cold-workingChange and process, its hardness is strengthened, can directly pierce through skin and hypodermis, do not need out skin operation.
In an embodiment, also comprise the suture needle hole cylinder removably connecting with flow sub, this suture needle thereinHole cylinder comprises the suture needle hole on cylindrical shell and setting and described cylindrical shell.
The technical program also provides a kind of generation method of superslide coating, adopts the composite coupler preparingCatheter body is carried out to pretreatment, recycle hydrophilic unsaturated polymer solution and apply, and dry. ThisTechnical scheme superslide coating is hydrophilic polymer coating, and superslide coating is rapid-action, and frictional force is low, persistenceBy force, good biocompatibility and not with tissue adhesion, reduce tissue damage except conveniently putting pipe, be coated withLayer enduring quality convenient nursing time move and steering nozzle.
Therein in an embodiment, wherein to adopt the composite coupler preparing to carry out pretreatment concrete for stepFor catheter body is soaked to 0.5 to 1.5 minute benzoyl peroxide, in ozone, put again or by catheter bodyPut 7 to 15 minutes.
Therein in an embodiment, described hydrophilic unsaturated polymer solution be hydroxypropyl methylcellulose andThe mixed solution of vitamin E, wherein the mass percent of hydroxypropyl methylcellulose is 1% to 2%, dimensionThe mass percent of raw plain E is no less than 2%.
In an embodiment, the temperature of oven dry is 50 to 60 degrees Celsius therein, the time of oven dry be 2 to4 hours.
In an embodiment, also comprise and adopt Co 60 to carry out crosslinking with radiation therein, radiation intensity is 25kTo 35k, 8 to 12 hours crosslinking with radiation time. The technical program superslide coating is hydrophilic polymer coating,The surface that is solidificated in catheter body through radiation treatment, superslide coating is rapid-action, and frictional force is low, and persistence is strong,When the enduring quality convenient nursing of superslide coating, move and steering nozzle. The superslide coating of catheter body adopts spokePenetrate crosslinked mode and solidify, synchronously can carry out radiation sterilization, simplified technological process.
Advantage to the technical program or principle describe below.
In the technical program drainage catheter, be provided with the puncture needle removably connecting, hard head has opening,Puncture needle runs through opening. The opening hard head that is provided with of catheter body coordinates puncture needle, and drainage catheter can be straightConnect and pierce through skin and hypodermis, need to, opening skin operation, completing after puncture, puncture needle not torn openUnload out. Meanwhile, be provided with superslide coating to the surface of tube body, making in the body of conduit stopTime increase, convenient nursing. The technical program superslide coating is hydrophilic polymer coating, through overshootProcessing is solidificated in the surface of catheter body, and superslide coating is rapid-action, and frictional force is low, and persistence is strong, and superslide is coated withLayer enduring quality convenient nursing time move and steering nozzle. The superslide coating of catheter body adopts crosslinking with radiationMode solidify, synchronously can carry out radiation sterilization, simplified technological process.
Brief description of the drawings
Fig. 1 is a structural representation of catheter body described in the embodiment of the present invention;
Fig. 2 is a structural representation of catheter body described in the embodiment of the present invention;
Fig. 3 is a structural representation of catheter body described in the embodiment of the present invention;
Fig. 4 is a structural representation of catheter body described in the embodiment of the present invention;
Fig. 5 is the structural representation of puncture needle described in the embodiment of the present invention;
Description of reference numerals:
10, flow sub, 110, suture needle hole cylinder, 111, suture needle hole, 20, catheter body, 210, bulletProperty portion, 211, straight long section, 212, bending section, 220, side opening, 230, hard head, 30, puncture needle,310, head, 320, needle tubing.
Detailed description of the invention
Advantage or principle below in conjunction with accompanying drawing to technical solution of the present invention describe.
Please consider and examine Fig. 1 to 5. Drainage catheter comprises catheter body 20 and of flow sub 10, inner hollowThe puncture needle 30 that is arranged in catheter body 20 and removably connects with this flow sub 10, this catheter body20 comprise elastic portion 210 and hard head 230, and these elastic portion 210 one end connect flow sub 10, anotherEnd is connected with hard head 230. This hard head 230 has opening, described in this puncture needle 30 runs throughOpening. The outer surface of this catheter body 20 is provided with superslide coating. In the present embodiment, hard head 230Be to be made up of the high score molecular elastic material of high rigidity, its hardness is more than shore hardness 60D. Wherein conduitThe material of body 20 can be the height of the medical grades such as polyurethane, silicon rubber, TPE, PLA and fluoroplasticsMolecular material.
In described catheter body 20, be provided with side opening 220, the inner chamber of described side opening 220 and catheter body 20Communicate. Hydrops, pneumatosis in body enter the inner chamber of catheter body 20, then connect from drainage by side opening 22010 excrete. In the present embodiment, catheter body 20 is straight long shape. In other embodiments, instituteState elastic portion 210 and comprise straight long section 211 and bending section 212, described side opening 220 arranges and described bending sectionOn 212. Elastic portion 210 comprises straight long section 211 and bending section 212, in the situation that not being subject to external force, curvedTune 212 is the bending such as wholecircle or again or one semi-circumference of semicircle, thereby difference is selected in different affected partsDrainage catheter. Due to bending section 212 be all have flexible, when puncture needle 30 is inserted into conducting bodyWhen inner, bending section 212 has also become the straight long shape corresponding with puncture needle 30. Drainage catheter also comprisesWith the suture needle hole cylinder 110 that flow sub 10 removably connects, this suture needle hole cylinder 110 comprise cylindrical shell and arrange withSuture needle hole 111 on described cylindrical shell.
Described puncture needle 30 comprises the needle tubing 320 of the thickening of head 310 and process flow harden processing, described inNeedle tubing 320 interconnects with head 310, and described head 310 removably connects with flow sub 10. PinPipe 320 can be hollow or solid construction. Flow sub 10 is also inner hollow structure, make proper inHydrops or the pneumatosis flow sub 10 of flowing through discharges. In this flow sub 10, be provided with installation portion, punctureThe head 310 of pin 30 is provided with and the installation portion connecting portion being connected that cooperatively interacts. Flow sub 10 and punctureBetween the head 310 of pin 30, for being threaded or buckle connects, or the head 310 of puncture needle 30 is straightFemale connector is combined in and in flow sub 10, makes the needle tubing 320 of puncture needle 30 be sheathed in catheter body 20, pinThe head end of pipe 320 runs through the opening of hard head 230. Simultaneously catheter body 20 is inserted completing punctureEnter after body interior, puncture needle 30 can be disassembled in catheter body 20.
The technical program also provides the generation method of the superslide coating on a kind of catheter body 20 surfaces, adoptsThe composite coupler preparing carries out pretreatment to catheter body 20, recycles hydrophilic unsaturated polymer moltenLiquid applies, and dries. Wherein step adopt the composite coupler preparing carry out pretreatment be specially byCatheter body 20 is soaked 0.5 to 1.5 minute benzoyl peroxide, again or by catheter body 20 in ozonePlace 7 to 15 minutes. In the present embodiment, preferably, catheter body 20 is soaked to peroxidating in 1 minuteBenzoyl is placed 10 minutes as pretreatment again or using catheter body 20 in ozone. Described hydrophilic insatiable hungerWith polymer solution be the mixed solution of hydroxypropyl methylcellulose and vitamin E, wherein hydroxypropyl methyl fibreTieing up plain mass percent is 1% to 2%, and the mass percent of vitamin E is no less than 2%, in this enforcementIn example, preferably, the mass percent of hydroxypropyl methylcellulose is 11.52%, the quality of vitamin EPercentage is no less than 2%. The temperature of drying is 50 to 60 degrees Celsius, and the time of oven dry is 2 to 4 hours.After oven dry, adopt Co 60 to carry out crosslinking with radiation, radiation intensity is 25k to 35k, the crosslinking with radiation time 8To 12 hours, in the present embodiment, preferably, radiation intensity was 30k.
Advantage to the present embodiment or principle describe below.
1, in the present embodiment drainage catheter, be provided with the puncture needle 30 removably connecting, hard head 230 toolsHave opening, puncture needle 30 runs through opening. The opening hard head 230 that is provided with of catheter body 20 coordinates puncturePin 30, drainage catheter can directly pierce through skin and hypodermis, need to be opening skin operation, completeBecome after puncture, puncture needle 30 is taken apart. Meanwhile, be provided with superslide on the surface to tube bodyCoating, make conduit stop body in time increase, convenient nursing.
2, needle tubing 320, through flow harden processing, strengthens its hardness, can directly pierce through skin and skinUndertissue, does not need out skin operation.
3, the present embodiment superslide coating is hydrophilic polymer coating, and superslide coating is rapid-action, and frictional force is low,Persistence is strong, good biocompatibility and not with tissue adhesion, except can conveniently put pipe reduce tissue damageMove and steering nozzle when the enduring quality convenient nursing of coating outward.
4, superslide coating is hydrophilic polymer coating, is solidificated in the table of catheter body 20 through radiation treatmentFace, superslide coating is rapid-action, and frictional force is low, and persistence is strong, when the enduring quality convenient nursing of superslide coatingMove and steering nozzle. The superslide coating of catheter body 20 adopts the mode of crosslinking with radiation to solidify, and synchronously canTo carry out radiation sterilization, simplify technological process.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailedCarefully, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that for thisThe those of ordinary skill in field, without departing from the inventive concept of the premise, can also make some changesShape and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. a drainage catheter, it is characterized in that, the puncture needle that comprises the catheter body of flow sub, inner hollow and be arranged in catheter body and removably connect with this flow sub, this catheter body comprises elastic portion and hard head, this elastic portion one end connects flow sub, and the other end is connected with hard head; This hard head has opening, and this puncture needle runs through described opening; The outer surface of this catheter body is provided with superslide coating; Described superslide coating is by soaking 0.5 to 1.5 minute benzoyl peroxide by catheter body, again or catheter body is placed in ozone 7 to 15 minutes, the mass percent of recycling hydroxypropyl methylcellulose be 1% to 2% and the mass percent of vitamin E be no less than 2% mixed solution and apply, dry, and adopt Co 60 to carry out crosslinking with radiation, radiation intensity is 25k to 35k, and 8 to 12 hours crosslinking with radiation time made.
2. drainage catheter according to claim 1, is characterized in that, in described catheter body, is provided with side opening, and described side opening communicates with the inner chamber of catheter body.
3. drainage catheter according to claim 2, is characterized in that, described elastic portion comprises straight long section and bending section, and described side opening is arranged on described bending section.
4. according to the drainage catheter described in claims 1 to 3 any one, it is characterized in that, described puncture needle comprises head and the needle tubing through flow harden processing, and described needle tubing and head interconnect, and described head and flow sub removably connect.
5. according to the drainage catheter described in claims 1 to 3 any one, it is characterized in that, also comprise the suture needle hole cylinder removably connecting with flow sub, this suture needle hole cylinder comprises cylindrical shell and is arranged at the suture needle hole on described cylindrical shell.
6. the generation method of the superslide coating as described in claim 1 to 5 any one, it is characterized in that, by catheter body is soaked to 0.5 to 1.5 minute benzoyl peroxide, again or catheter body is placed in ozone 7 to 15 minutes, the mass percent of recycling hydroxypropyl methylcellulose be 1% to 2% and the mass percent of vitamin E be no less than 2% mixed solution and apply, dry, and adopt Co 60 to carry out crosslinking with radiation, radiation intensity is 25k to 35k, 8 to 12 hours crosslinking with radiation time.
7. the generation method of superslide coating according to claim 6, is characterized in that, the temperature of oven dry is 50 to 60 degrees Celsius, and the time of oven dry is 2 to 4 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033405.5A CN103800951B (en) | 2014-01-23 | 2014-01-23 | The generation method of drainage catheter and superslide coating thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033405.5A CN103800951B (en) | 2014-01-23 | 2014-01-23 | The generation method of drainage catheter and superslide coating thereof |
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| Publication Number | Publication Date |
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| CN103800951A CN103800951A (en) | 2014-05-21 |
| CN103800951B true CN103800951B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410033405.5A Active CN103800951B (en) | 2014-01-23 | 2014-01-23 | The generation method of drainage catheter and superslide coating thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021026641A1 (en) * | 2019-08-09 | 2021-02-18 | Safa Behnam | Coiled over-the-needle catheter and methods of use thereof for performing continuous nerve block procedures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3860006A (en) * | 1973-06-25 | 1975-01-14 | Kendall & Co | Suprapubic catheter system using an internal stylet |
| JP2007236628A (en) * | 2006-03-08 | 2007-09-20 | Terumo Corp | Medical tube introduction implement |
| CN102049082A (en) * | 2009-11-05 | 2011-05-11 | 深圳市凯思特精工塑料有限公司 | Tip-stiffened drainage tube |
| CN202113466U (en) * | 2011-03-29 | 2012-01-18 | 深圳市凯思特精工塑料有限公司 | Hydrophilic hyper-slippery coating soft-head anesthetization tube |
| CN202191576U (en) * | 2011-07-19 | 2012-04-18 | 深圳市凯思特精工塑料有限公司 | Hydrophilic ultra-lubricous coating drainage tube |
| CN203694193U (en) * | 2014-01-23 | 2014-07-09 | 广州市凌捷医疗器械有限公司 | Drainage catheter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531814Y (en) * | 2002-01-01 | 2003-01-22 | 业聚医疗器械(深圳)有限公司 | Disposable vaginal tube |
| US7481805B2 (en) * | 2002-06-27 | 2009-01-27 | Innoventus Project Ab | Drainage catheter |
-
2014
- 2014-01-23 CN CN201410033405.5A patent/CN103800951B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3860006A (en) * | 1973-06-25 | 1975-01-14 | Kendall & Co | Suprapubic catheter system using an internal stylet |
| JP2007236628A (en) * | 2006-03-08 | 2007-09-20 | Terumo Corp | Medical tube introduction implement |
| CN102049082A (en) * | 2009-11-05 | 2011-05-11 | 深圳市凯思特精工塑料有限公司 | Tip-stiffened drainage tube |
| CN202113466U (en) * | 2011-03-29 | 2012-01-18 | 深圳市凯思特精工塑料有限公司 | Hydrophilic hyper-slippery coating soft-head anesthetization tube |
| CN202191576U (en) * | 2011-07-19 | 2012-04-18 | 深圳市凯思特精工塑料有限公司 | Hydrophilic ultra-lubricous coating drainage tube |
| CN203694193U (en) * | 2014-01-23 | 2014-07-09 | 广州市凌捷医疗器械有限公司 | Drainage catheter |
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| CN103800951A (en) | 2014-05-21 |
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