CN101829391A - Medical drainage sucking disc and preparation method thereof - Google Patents
Medical drainage sucking disc and preparation method thereof Download PDFInfo
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- CN101829391A CN101829391A CN 201010185065 CN201010185065A CN101829391A CN 101829391 A CN101829391 A CN 101829391A CN 201010185065 CN201010185065 CN 201010185065 CN 201010185065 A CN201010185065 A CN 201010185065A CN 101829391 A CN101829391 A CN 101829391A
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- drainage
- sucking disc
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- basal disc
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Abstract
The invention relates to a medical drainage sucking disc and a preparation method thereof, belonging to the technical field of medical treatment wound surface drainage. The preparation method comprises the following steps of: forming a basal disc and a drainage nozzle by using plastic substrate materials through an injection molding method; preparing a sponge material into a filtering layer adapted with the size and the shape of the basal disc by using a physical cutting method; preparing the filtering layer, the basal disc and the drainage nozzle into the medical drainage sucking disc by means of welding or chemical bonding. The medical drainage sucking disc comprises the filtering layer, the basal disc and the drainage nozzle, wherein drainage channels which are crossly communicated are arranged in the basal disc, walls of the drainage channels are provided with external filtering layers of suction holes, and the drainage channels, the suction holes and the drainage nozzle are in a communication state, thereby the medical drainage sucking disc has excellent drainage effect and can maintain the wound surface to locally seal up.
Description
Technical field
The present invention relates to a kind of medical drainage sucking disc and preparation method thereof, belong to medical wound surface drainage technology field.
Background technology
Usually, being used for the drainage tube or the drain dressing of medical purpose, is with point-like or planar drain.In time excrete at the sepage, the slough that reach by negative pressure drainage in wound surface, the lacuna, can promote and the blood capillary growth of wound surface that the granulation tissue of accelerating wound surface is evenly germinateed, and holds back fast and closes wound surface and lacuna neatly and cleanly.But the function of above product has limitation, and drainage tube can only produce effect in the point-like drain, though drain dressing can reach planar drain, the effect of this drain is still not thorough, has the sepage of wound surface periphery, the defective that slough is difficult to excrete.
Summary of the invention
Therefore, the object of the present invention is to provide and a kind ofly have good drainage effect and can keep medical drainage sucking disc of wound surface partial closure and preparation method thereof.
The technical solution used in the present invention is as follows: a kind of medical drainage sucking disc, it is characterized in that: it comprises filter course, basal disc, drain mouth, has the staggered drainage channel that is communicated with in the described basal disc, the drainage channel wall is provided with and attracts the external filter course in hole, and drainage channel, attraction hole, drain mouth are connected state.
Described basal disc has the thickness of 1～20mm, and the diameter in described attraction hole is 0.001～30mm, and attracting hole and the spacing that attracts the hole to form is 0.1～10mm, and drainage channel has the wall thickness of 0.1～10mm and the width of 0.1～30mm.
Described drain mouth can be provided with one or more as required.
Described attraction hole and drainage channel cross section are arbitrary geometric figure.
Have pliability and injection moulding but described basal disc, drain mouth adopt, and can weld or the material of chemical adhesive; Described filter course adopts the material with filtering property.
Described basal disc, drain mouth adopt plastic matrix material; Described filter course adopts sponge material.
The present invention also provides a kind of method for preparing above-mentioned medical drainage sucking disc, it is characterized in that: according to the construction features of described medical drainage sucking disc, adopt plastic matrix material to form basal disc and drain mouth by the method for injection moulding, the method that adopts physics to cut sanction is made the filter course that adapts with basal disc size, shape with sponge material, then filter course, basal disc, drain mouth is made described medical drainage sucking disc by the method for welding or chemical adhesion.
The described processing equipment temperature for preparing the method for medical drainage sucking disc is that 80～400 ℃, pressure are 0.5～50Mgp.
Described plastic matrix material is any amount and the arbitrary proportion inorganic matter of plastics such as calcium, barium, Kaolin etc. or other mixture is combined and directly mix in the hot melt operation of injection moulding process with pelletize or without pelletize.
In preparation medical drainage sucking disc according to the present invention, basal disc, attract hole, drainage channel to form by injection moulding or welding, chemical adhesive.
Particularly, any form of the basal disc in according to the present invention in for example can be by the following method: die casting, injection moulding, welding, chemical adhesive.The method of aforementioned injection moulding is divided into two classes: method of injection molding and welding, chemical adhesive method.The available example of method of injection molding comprises: extrude, forming methods such as injection moulding, blowing, calendering, the available example of welding, chemical adhesive method comprises: hot melt, ultrasonic welding method; Chemical adhesive mainly is with chemical mucus adhesive bonding method etc.
In these methods, because injection moulding can be disposable to basal disc, attraction hole, drainage channel, the molding of drain mouth, so be preferred the use.In addition, welding, chemical adhesive, polishing can solve the problem that relates in the conventional injection moulding, for example the basal disc release surface rough, flaws such as corner, surplus thorn are arranged; Basal disc stress and be unsuitable for the pliability basal disc.
Therefore, this medical drainage sucking disc comprises that basal disc has the thickness of 1～20mm, is formed by injection moulding or welding, chemical adhesive by the plastics of polrvinyl chloride, polyethylene, modification flexible plastic or TPO material.Form diameter and have the wound surface contact surface of the attraction hole of 0.001～30mm by injection moulding or welding, chemical adhesive, and attract required drainage pipe to have the wall thickness of 0.1～10mm with attracting the hole equally to be formed on the wound surface contact surface of basal disc at basal disc.Attracting hole and the spacing that attracts the hole to form is 0.1～10mm, and the minimum spacing 0.1 * 0.1mm in the attraction hole that forms by injection moulding or welding, chemical adhesive covers the wound surface contact surface of basal disc.
Basal disc can use common plastics to form, angle in physics or chemical stability, its available example comprises that general polrvinyl chloride, polyethylene, modification flexible plastic or TPO material flexible plastic form, more preferably the flexible plastic of mechanical strength, pliability and weight.
Be formed on penetrating fluid, slough that attraction hole on the basal disc and drainage channel are used to draw wound surface, and can adopt and form by injection moulding.According to the present invention, use the material of polrvinyl chloride, and form basal disc, attract hole, drainage channel, drain mouth by injection moulding as basal disc.Consider pliability and machinability, basal disc has the thickness that 1～20mm is arranged, and preferred version has the thickness that 1～2mm is arranged, and more preferably scheme has the thickness of 1.5mm.
In addition, attract hole and drainage channel to be formed on the basal disc by multiple processing method.Preferred version, attracting hole and the spacing that attracts the hole to form is 2～3mm, and this spacing is used at the penetrating fluid, the slough that are caused drawing wound surface by the basal disc of medical drainage sucking disc and wound surface contact surface.In other words, attract the wound surface contact surface that is arranged on basal disc in hole, attract the size in aperture or the position of how much depending on clinical use or the area of number.By this structure, can make outside wound exudate, the slough export list by basal disc.
According to the present invention, attract the material and the thickness of hole and drainage channel to be not particularly limited, as long as attract hole and drainage channel that wound exudate, slough are drawn, therefore, those skilled in the art can select from multiple material known in the art and shape.Be used for fixing at medical drainage sucking disc under the situation of 15 * 10cm, attract the hole preferred version to form by injection moulding by the plastics of polrvinyl chloride, polyethylene, modification flexible plastic or TPO material, and its thickness is preferably 1.5mm, more be preferably about 2.5mm, to keep best drainage effect of medical drainage sucking disc and structure.
According to the present invention, attract the hole can be formed with single or a plurality of attractions hole, wherein single or a plurality of attraction holes classify as single-orifice type or porous type respectively.In the present invention, this attraction hole of two types all is suitable for.
In addition, by the basal disc that attracts hole and drainage channel to form, so that the attraction hole that forms on the drainage channel is also produced the effect of drawing drain.Since attract hole and drainage channel by next on basal disc, the formation of injection moulding, thus drainage channel and the formation problem that attracts the hole can be solved, and the whole advantages of use basal disc as drainage sucking disc can be provided.Preferred version, the wall thickness of drainage channel are 0.1 to 10mm, about 2mm more preferably, with keep medical drainage sucking disc optimum structure and suction.
Having in the preparation medical drainage sucking disc according to of the present invention, by avris around the drainage sucking disc drainage pipe is set and applies suction to drainage sucking disc, produce drain with the attraction hole that is provided with by drainage channel.
Use soft PVC as the conventional drainage sucking disc of the material of basal disc by to polrvinyl chloride injection moulding make.Yet, in processing, have difficulties, because be difficult to form the drain mouth.According to the present invention, owing to can produce under the situation of not shot drain mouth molding and have medical drainage sucking disc, so can solve the problem that relates in the conventional attraction dish, and also can adopt sweat soldering and the bonding conduct of chemical mucus to need not shot molding drain mouth.
According to the present invention, also provide a kind of method that is used to produce the medical drainage sucking disc that need not shot molding drain mouth.The method that is used to produce medical drainage sucking disc comprises that the polrvinyl chloride injection moulding forms the drain mouth of medical drainage sucking disc.
As the method for injection mo(u)lding, can use various injection moulding process known in the art, concrete example comprise extrude, injection moulding, blowing, calendering formation any.Aforementioned injection moulding process can classify as these two types of injection moulding process and blow moiding methods to a great extent.The example of available injection moulding process comprises four-dimensional melt extrusion injection moulding, water aided injection mould, supercritical fluid injection mo(u)lding (SCF) etc., and the example of the method for available blow molding comprises rotation blowing, stretch-blow, extrusion-blown modling, melt-blown etc.
Preferred version, by making the drain mouth with the method for four-dimensional melt extrusion injection moulding, this is because the independent making of drain mouth easily produces flaw difficult problems such as overlap can solve the medical basal disc demoulding time, improves productivity effect, reduces the substandard products incidence rate of phenomenons such as basal disc overlap.In addition, can solve the uniformity problem that relates to the hot fluid tract in the mould with four-dimensional melt extrusion injection moulding.
Four-dimensional melt extrusion injection moulding specifically describes as follows according to the usefulness of medical drainage sucking disc of the present invention in preparation:
This four-dimension melt extrusion injection moulding is a kind of method of molding injection moulding, and it is the thrust by screw rod (or plunger), and the plastics of the molten condition (being viscous state) that plastified are injected in the closed good die cavity, obtains the technical process of goods after solidifying and setting.------the mould pickup is opened in the injection of exerting pressure---mold filling cooling---to fusion plastification to quantifying feed.Take out behind the plastic again mold closing again, carry out next one and circulate.
The invention has the beneficial effects as follows: this medical drainage sucking disc has and has improved point-like and planar drain.As forming the characteristic that attracts hole and drainage channel to improve the no dead angle drain of medical drainage sucking disc, can prepare the medical drainage sucking disc that has good drainage effect and can keep wound surface partial closure by injection moulding.
In addition,, adopt polishing when using injection moulding or welding, chemical adhesive, can avoid the defective that relates in injection moulding or welding, the chemical adhesive thus in the method that is used for preparing medical drainage sucking disc according to the present invention.Aspect physics, guarantee the pliability of basal disc by modifying plastics technology, thereby avoid the flexibility problems of basal disc.Selection has flexible material as base-plate materials, thereby has expanded the range of choice of base-plate materials.Intensive attraction Kong Zhen and multichannel drainage pipe can reduce the residual stress of basal disc, realize that the sepage of wound surface periphery does not have remnants.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1: medical drainage sucking disc schematic top plan view
Fig. 2: medical drainage sucking disc is along Figure 1A A line generalized section
Fig. 3: medical drainage sucking disc is along Figure 1B B line generalized section
The specific embodiment
Fig. 1, Fig. 2, Figure 3 shows that medical drainage sucking disc different visual angles structure chart of the present invention, be for better explanation architectural feature of the present invention, wherein Fig. 2 is primary structure figure of the present invention, it comprises filter course 1, basal disc 2, drain mouth 6 medical drainage sucking disc shown in it, has the staggered drainage channel 4,5 that is communicated with in the described basal disc 2, drainage channel 4,5 walls are provided with and attract hole 3 external filter courses 1, and drainage channel 4,5 and attraction hole 3, drain mouth 6 are connected state.
In preparation process, at first press the size of basal disc 15 * 10cm, the thickness of 2.5mm, attracting the diameter in hole is 1.5mm, attracting hole and the spacing that attracts the hole to form is 2mm, drainage channel has the wall thickness of 2mm and the width of 5mm, the drainage channel cross section is oblate, the requirement of 2 drain mouths is set, makes 3 moulds: have the basal disc lower mold (basal disc is separated into two parts up and down from drainage channel) that attracts the hole with the basal disc upper mold and the band of two corresponding openings of drain mouth, the drain mouth mould of with closure; Be that 80～400 ℃, pressure are under the condition of 0.5～50Mgp then, make two parts forming basal disc and make the drain mouth by the method for four-dimensional melt extrusion injection moulding with common plastics with soft plastic material in the processing equipment temperature; With hot method of melting welding above-mentioned 3 parts are become medical drainage sucking disc of the present invention with the thick sponge combination of the 2mm that is cut into respective shapes then.The medical drainage sucking disc of making has when negative pressure is measured and is at least 0.08MPa pressure, and applies the negative pressure moment speed of exhaust should be not less than 10L/min under experimental condition.
In use, at first medical drainage sucking disc of the present invention is covered on the wound surface, seal wrapping then around, form the sealed environment in the wound surface, at last drain mouth 6 is passed through the external negative pressure equipment of pipeline, by the negative pressure that negative pressure equipment produces, pass through filter course 1, attract hole 3, drainage channel 4,5, drain mouth 6, and reach the purpose of drain outside wound exudate, the slough export list.
Claims (8)
1. medical drainage sucking disc, it is characterized in that: it comprises filter course, basal disc, drain mouth, have the staggered drainage channel that is communicated with in the described basal disc, the drainage channel wall is provided with and attracts the external filter course in hole, and drainage channel, attraction hole, drain mouth are connected state.
2. medical drainage sucking disc according to claim 1, it is characterized in that: described basal disc has the thickness of 1～20mm, the thickness of filter course 1～20mm, the diameter in described attraction hole is 0.001～30mm, attracting hole and the spacing that attracts the hole to form is 0.1～10mm, and drainage channel has the wall thickness of 0.1～10mm and the width of 0.1～30mm.
3. medical drainage sucking disc according to claim 1 is characterized in that: described drain mouth can be provided with one or more as required.
4. medical drainage sucking disc according to claim 1 is characterized in that: described attraction hole and drainage channel cross section are arbitrary geometric figure.
5. medical drainage sucking disc according to claim 1 is characterized in that: but described basal disc, drain mouth adopt and have pliability and injection moulding, and can weld or the material of chemical adhesive; Described filter course adopts the material with filtering property.
6. medical drainage sucking disc according to claim 1 is characterized in that: described basal disc, drain mouth adopt plastic matrix material; Described filter course adopts sponge material.
7. method for preparing above-mentioned medical drainage sucking disc, it is characterized in that: according to the construction features of described medical drainage sucking disc, adopt plastic matrix material to form basal disc and drain mouth by the method for injection moulding, the method that adopts physics to cut sanction is made the filter course that adapts with basal disc size, shape with sponge material, then filter course, basal disc, drain mouth is made described medical drainage sucking disc by the method for welding or chemical adhesion.
8. the method for preparing medical drainage sucking disc according to claim 5 is characterized in that: the processing equipment temperature is that 80～400 ℃, pressure are 0.5～50Mgp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185065 CN101829391A (en) | 2010-05-16 | 2010-05-16 | Medical drainage sucking disc and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185065 CN101829391A (en) | 2010-05-16 | 2010-05-16 | Medical drainage sucking disc and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101829391A true CN101829391A (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010185065 Pending CN101829391A (en) | 2010-05-16 | 2010-05-16 | Medical drainage sucking disc and preparation method thereof |
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| CN (1) | CN101829391A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614575A (en) * | 2012-04-28 | 2012-08-01 | 山东赛克赛斯药业科技有限公司 | Composite flexible drainage device |
| WO2013012381A1 (en) * | 2011-07-19 | 2013-01-24 | Shieldheart Medtech Ab | Stabilizer, barrier disc and wound dressing comprising stabilizer, method for controlling the position of a wound dressing or barrier disc, and method for facilitating drainage from a wound dressing or barrier disc in negative pressure wound treatment |
| CN110584881A (en) * | 2019-09-05 | 2019-12-20 | 大博医疗科技股份有限公司 | Medical device for managing seepage of damaged tissue |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172659Y (en) * | 1993-08-24 | 1994-07-27 | 胡华新 | Multi-path surgical drainage strip |
| US5549584A (en) * | 1994-02-14 | 1996-08-27 | The Kendall Company | Apparatus for removing fluid from a wound |
| CN2621707Y (en) * | 2003-06-13 | 2004-06-30 | 宋修军 | Intrathoracic drain |
| WO2008005532A2 (en) * | 2006-07-07 | 2008-01-10 | Boehringer Technologies L.P. | Growth stimulating wound dressing with improved contact surfaces |
| CN101378796A (en) * | 2006-02-06 | 2009-03-04 | 凯希特许有限公司 | Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems |
-
2010
- 2010-05-16 CN CN 201010185065 patent/CN101829391A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172659Y (en) * | 1993-08-24 | 1994-07-27 | 胡华新 | Multi-path surgical drainage strip |
| US5549584A (en) * | 1994-02-14 | 1996-08-27 | The Kendall Company | Apparatus for removing fluid from a wound |
| CN2621707Y (en) * | 2003-06-13 | 2004-06-30 | 宋修军 | Intrathoracic drain |
| CN101378796A (en) * | 2006-02-06 | 2009-03-04 | 凯希特许有限公司 | Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems |
| WO2008005532A2 (en) * | 2006-07-07 | 2008-01-10 | Boehringer Technologies L.P. | Growth stimulating wound dressing with improved contact surfaces |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013012381A1 (en) * | 2011-07-19 | 2013-01-24 | Shieldheart Medtech Ab | Stabilizer, barrier disc and wound dressing comprising stabilizer, method for controlling the position of a wound dressing or barrier disc, and method for facilitating drainage from a wound dressing or barrier disc in negative pressure wound treatment |
| CN102614575A (en) * | 2012-04-28 | 2012-08-01 | 山东赛克赛斯药业科技有限公司 | Composite flexible drainage device |
| CN102614575B (en) * | 2012-04-28 | 2013-06-12 | 山东赛克赛斯药业科技有限公司 | Composite flexible drainage device |
| CN110584881A (en) * | 2019-09-05 | 2019-12-20 | 大博医疗科技股份有限公司 | Medical device for managing seepage of damaged tissue |
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Application publication date: 20100915 |