WO2001056706A1 - Dispositif de revetement de la surface interieure d'un corps creux - Google Patents
Dispositif de revetement de la surface interieure d'un corps creux Download PDFInfo
- Publication number
- WO2001056706A1 WO2001056706A1 PCT/EP2000/013075 EP0013075W WO0156706A1 WO 2001056706 A1 WO2001056706 A1 WO 2001056706A1 EP 0013075 W EP0013075 W EP 0013075W WO 0156706 A1 WO0156706 A1 WO 0156706A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow body
- pipe
- exhaust pipe
- neck
- exhaust
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
Definitions
- the invention relates to a device for coating the inner surface of a hollow body with an opening on an elongated neck by depositing at least one reaction product on this surface, the reaction product being formed by the reaction of a gas mixture, with at least one feed tube which can be fitted centrally in the neck and the opening for process gas and with at least one exhaust pipe.
- hollow bodies made of plastic are used as packaging, for example in the food sector and in the medical field, because they can be easily produced and handled and are also inexpensive.
- low-molecular gas such as oxygen and carbon dioxide
- low-molecular organic compounds can also penetrate the plastic. As a result, drinks can lose their taste and quality.
- process gas is introduced into the hollow body by means of the feed pipe, and after the chemical process has ended, the exhaust gases are drawn off through the neck of the hollow body.
- the layer deposited on the inner surface of the hollow body is of different thickness depending on the shape of the hollow body. If, for example, you coated hollow bodies with a relatively long neck, as is common with some beer bottles, the layer thickness along the neck, so that the barrier properties were no longer given with a too thin layer thickness.
- the object of the invention is to improve a device of the type mentioned in the introduction in such a way that the thickness of the layer on the container wall can be set to the same or different at different points.
- the exhaust pipe attached outside the hollow body is connected to at least one exhaust pipe which, in the operating position of the hollow body, projects through its opening, through its closure region and into the neck and in that the open, inner end of the at least one exhaust pipe outside the closure area comes to lie at the height of the longitudinal extent of the hollow body at which the cross section of the hollow body is larger than the cross section of the closure area.
- Closure region is understood to mean the essentially annular wall region which adjoins the opening of the hollow body and which is provided for receiving a sealing and / or protective cap. This can be a ring for receiving a crown cork, or the closure area can extend a little in the longitudinal direction of the hollow body and carry an external thread, onto which a protective and / or sealing cap is screwed.
- the hollow body is a bottle-like body, which is otherwise closed except for the opening located at the outer end of the neck, from which opening to the main part of the hollow body a neck connects behind the closure region.
- Its shape can be roughly cylindrical or conical.
- the invention is based on the knowledge that the exhaust gas flow inhibits the separation of the reaction product in the neck and closure area and at least partially prevents it when the exhaust gas has to flow through the neck and closure area in order to reach the exhaust pipe attached outside the hollow body. From there, the exhaust gas is then extracted further. With the inventive idea, a measure has been taken to prevent the exhaust gas flows from flowing along the inner surface of the neck and / or closure area of the hollow body.
- This effect is achieved by the at least one new exhaust pipe, which is connected to the exhaust pipe outside the hollow body, but which projects from this connection point outside the hollow body through its opening, through its closure area and in its neck.
- This new exhaust pipe extends parallel to the feed pipe and can be inserted together with this into the hollow body in order to achieve a trouble-free filling of the hollow body with the desired gas mixture, to ensure the separation of the desired reaction product and to remove the exhaust gas through the neck and the opening of the hollow body to be removed from the outside in such a way that the reaction products can also separate on the inner walls of the neck and, if appropriate, the closure area, in order to provide a layer on the wall of the hollow body which is more or less thick depending on the parameters set.
- the measure contributes significantly to this effect, namely that the inner end of the exhaust pipe comes to rest in the neck area.
- a certain area of the longitudinal extent of the hollow body is meant, possibly even at the transition to the main part of the hollow body or in the main part of the hollow body, so that the exhaust gases are sucked into the exhaust pipe there and then close to the feed pipe at a distance from the more or less coaxial wall of the hollow body are discharged.
- the entire ring area on the inner surface of the neck and possibly also the closure area is free of flowing, swirling and flowing process gases.
- the process gas can thus be deposited on the inner surfaces at rest.
- the exhaust pipe extends closed through the closure area and has its open inner end or a suction opening in a certain height range. This height is defined by the fact that the cross section of the hollow body at this height is larger than the cross section of the closure region.
- the pump is pumped inside the hollow body.
- the feed pipe for process gas has a smaller first diameter approximately in the area of the neck of the hollow body than further inside the hollow body, and the exhaust pipe is guided in the area of the smaller first diameter parallel to the feed pipe and outside of it close to it ,
- the inside diameter of the neck of a hollow body is smaller than the inside diameter of the main part of the hollow body.
- the diameter of the feed tube is reduced in this first region with the smaller first diameter.
- the annular space around this first length region of the feed tube thus has a larger cross section, so that the reaction products can move better there and can deposit in larger quantities on the inner surface of the hollow body.
- This approximately frustoconical or step-shaped transition will be arranged in the direction of the longitudinal extension of the hollow body at such a height within the neck or further inward that the above-mentioned effect is achieved, after which the process gas and the reaction product have good access and easy deposition to the coating on the inner surface in the neck area. It is advisable not to arrange this transition at the narrowest point, for example in the closure area. Therefore, the exhaust pipe ends with its inner part in the first length range of the feed pipe, where this has the smaller first diameter.
- This position can be close to the transition mentioned, but can also be at a distance from the transition, provided that the above-mentioned condition is always met that the height position of the open inner end of the exhaust pipe or its suction opening is where the cross section of the hollow body is larger than that of the closure area.
- the feed tube is a hollow tube which is closed except for outlet holes, the first length region of which with the smaller first diameter has at least one, preferably 4-10 and particularly preferably 2 gas outlet holes.
- a higher pressure can prevail in the feed pipe for process gas, with the effect that the process gas also exits the feed pipe into the hollow body.
- the thicker, inner area of the feed pipe with the larger second diameter there are gas outlet holes distributed around the circumference, but at the inner rear end of this feed pipe a cap is provided which is either completely closed or has a few gas outlet holes to ensure that the jet of the process gas also comes into the rearmost corners or areas of the hollow body to be coated.
- the number of gas outlet holes in the inner thicker area of the feed pipe is larger than the number of gas outlet holes in the first length area with the smaller diameter. Good test results were achieved with only two gas outlet holes in this first length region of the feed pipe, ie a sufficiently thick coating was achieved in the neck region of a hollow body.
- the exit jets from the inner, thicker part of the feed pipe are longer, more directed and transport larger quantities of gas if the rear end of the feed pipe is closed by the cap mentioned, even if there are few exit holes there, for example four holes in a frustoconical surface.
- Another favorable embodiment of the invention is characterized in that the inner end of the exhaust pipe comes to rest on the inner end of the feed pipe.
- the exhaust pipe next to the supply pipe then projects as far into the interior of the hollow body to be coated as the supply pipe itself.
- the position with the greatest suction effect is then also outside the closure area, but then no longer within the neck with the result that exhaust gases from the neck and / or closure area are only sucked inwards into the hollow body and are discharged from there via the exhaust pipes.
- This guidance of exhaust gases is exactly the opposite of that of the known device, in which only one exhaust gas line was provided outside the hollow body.
- Another and also inexpensive embodiment of the invention can be achieved if the exhaust pipe is attached to the inside of the supply pipe at the level of the thicker area of the supply pipe lying further inside in the hollow body and the open, inner end of the exhaust pipe is attached outside the supply pipe.
- the exhaust pipe continues to run outside the same in the first length range with the smaller first diameter of the feed pipe.
- the exhaust pipe is guided in the thicker part of the supply pipe inside.
- the open, inner end of the exhaust pipe must be connected to the space outside the supply pipe in order to ensure the desired extraction. Therefore, the inner end of the exhaust pipe is attached outside the supply pipe.
- the exhaust pipe is guided in front at the outside in parallel in the first length region of the supply pipe and the open, inner end of the exhaust pipe is drawn to the inner end of the supply pipe, then the exhaust gas is sucked in the area of the inner end of the supply pipe in Hollow body inside and leads it out inside the thicker area of the feed pipe parallel to the front.
- the exhaust pipe leaves the feed pipe in the area of the transition mentioned, in order to then jointly leave the hollow body at the front next to the feed pipe.
- the position of the suction openings takes into account the symmetry of the hollow body. It is possible, if a single suction pipe with only one opening, namely the open inner end of the same, is used to arrange this suction opening eccentrically. However, it is particularly preferred if this suction opening or the open, inner end of the suction pipe lies centrally on the longitudinal central axis of the hollow body. Alternatively, the use of several suction openings is described above. If one chooses an even number of suction tubes, possibly even an even number of suction openings, then it is preferred if these are arranged symmetrically with respect to the hollow body.
- the exhaust pipe at least partially runs around the feed pipe in its first length region with the smaller first diameter and the exhaust pipe has at least one suction opening in its circulation region. It is sufficient if a single exhaust pipe is guided in parallel outside the first length range of the feed pipe, the inner end of which is snake-like For example, feed tube wraps in the vicinity of the transition, a number of suction openings arranged more or less symmetrically to the hollow body being arranged radially outward. These suction openings are then to be understood in the sense of the open, inner end of the suction pipe. The area of the suction opening is then equal to the sum of the areas of the suction openings.
- the exhaust pipe can also be designed flexibly by arranging it in the manner of a hose and also holding it on the first length region of the supply pipe with the smaller diameter.
- FIG. 1 is a perspective view of a first embodiment of a feed pipe with four discharge pipes leading downwards to the front,
- FIG. 2 shows a cross-sectional view of a feed pipe for process gas with exhaust pipes attached below at the front, which are located in a hollow body, the entire arrangement being held by a base plate,
- FIG. 3 shows a cross-sectional view through FIG. 2 along the section line III-III
- FIG. 4 shows a view similar to FIG. 1, but showing another embodiment in which the exhaust pipes extend to the rear upper (inner) end of the supply pipe,
- FIG. 5 shows a side view of the embodiment in FIG. 4,
- FIG. 6 shows a cross-sectional view through a further different embodiment, in which only a single exhaust pipe is provided.
- FIG. 7 shows another embodiment in a similar representation to FIGS. 1 and 4 (in perspective), the exhaust pipe rotating around the feed pipe in the region of the transition of the feed pipe.
- FIG. 2 shows a bottle-like hollow body 1 with a bottom 2, a neck area 3 and a closure area 4 with an opening 5.
- the inner surface 6 of this hollow body 1 is to be coated by depositing a reaction product.
- the reaction product is created by the chemical reaction of a gas mixture that is a process gas.
- This process gas is fed through a feed pipe 7 into the interior of the hollow body 1 via the gas outlet holes 8, 8 ', the residual or exhaust gas being discharged via an exhaust pipe 9.
- a base plate 10 FIG. 2
- a bushing 11 provided ring holder 12 attached.
- this ring receptacle 12 is a stepped foot 13, which is also attached to the base plate.
- the foot 13 holds the feed tube, generally designated 7, via a support flange 14. Also in the other drawings, this feed pipe is generally designated 7 and can be described particularly well with reference to FIG. 1. Except for the gas outlet holes 8, 8 ', the feed tube 7 is an approximately cylindrical hollow tube with a first length range 15 with the length I and a second length range 16 with the length L, the second length range 16 being longer than the first length range 15 In both areas there is a step-shaped transition 17 which, by means of a similar support flange 17 ', creates the connection between the two length areas 15 and 16 of the feed pipe 7 as the front lower support flange 14 from the foot to the first length area 15 of the feed pipe 7.
- the first length area 15 has a smaller diameter d (FIGS. 5 and 7) than the second length region 16 with the diameter D. d is smaller than D.
- the feed tube 7 is closed by a cap 18 at its inner, rear or end shown in the drawings, which is provided with only four gas outlet openings 8 in the inclined surface.
- each exhaust pipe 19 has an open, inner end 20.
- the four exhaust pipes 19 run essentially over the entire first length region 15 of the feed pipe 7 parallel to it outside and closely adjacent to it. This makes it possible to push the feed pipe together with the four exhaust pipes 19 through the closure area 4 with the opening 5 of the hollow body 1 inside, although the relative movement is reversed during operation.
- the hollow body 1 is namely put with its closure region 4 at the front or bottom over the feed tube 7 and inserted into a recess 11 of the ring receptacle 12 and held there. The operating position shown in FIG. 2 is then reached.
- Process gas can be inserted according to arrow 21 from the front down into the feed pipe 7, pumped out through the gas outlet openings 8 and 8 'and pressed into the interior of the hollow body 1, from which exhaust gases after the chemical reaction enter the open inner end 20 of the exhaust pipes 19 and be sucked outwards according to arrows 22 and 23.
- the open inner end 20 of each of the four exhaust pipes 19 comes to lie outside the closure region 4, namely in FIG. 2 at a higher level of the longitudinal extent of the hollow body 1.
- This height is in the vicinity of the transition 17 between the first length region 15 of the feed pipe 7 and its second length region 16.
- This region between the closure region 4 of the hollow body 1 and its rear, thicker main part is the neck 3.
- the open, inner end 20 of the exhaust pipes 19 lies at a height slightly below the section line III-III.
- map recognizes that the cross section Qi of the hollow body 1 is equal to the area within the circle 1, minus the five inner circular areas. This cross section Qi is larger in the region of the neck 3 than the cross section Q 2 of the closure region 4, which cannot be seen in FIG. 3.
- the inner end 20 of the exhaust pipe 19 comes to lie at the inner end (in the region of the cap 18 closing the supply pipe 7) of the supply pipe 7. Nevertheless, one can also differentiate here between the embodiments according to FIGS. 4 and 5 on the one hand and that according to FIG. 6 on the other hand.
- FIGS. 4 and 5 show how, in turn, four exhaust pipes 19 are arranged symmetrically around the feed pipe 7 in such a way that they run parallel to the feed pipe just outside the feed pipe. After leaving the first length region 15, they follow the transition 17 on the outside at the outside, and then run along the outside along the second length region 16 with the larger diameter D.
- FIG. 6 there is only one exhaust pipe 19. It runs from the bottom below, similarly to the other embodiments, to the transition 17. There, the exhaust pipe 19 is passed through the supply pipe 7 in its second length region 16 such that the Exhaust pipe 19 runs in the second length region 16 of the supply pipe 7 with the larger diameter D centrally and parallel to it, until the exhaust pipe 19 passes through the cap 18 at the top, so that the inner end 20 of the exhaust pipe again connects to the interior of the hollow body 1 can come.
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
L'invention concerne un dispositif de revêtement de la surface intérieure (5) d'un corps creux (1) comportant une ouverture (5) au niveau d'un col longitudinal (3). Ledit revêtement est réalisé par dépôt d'au moins un produit de réaction sur ladite surface (6), ce produit de réaction étant créé par réaction d'un mélange gazeux. Ledit dispositif comporte également une conduite d'amenée (7) de gaz de processus, pouvant être logée de manière centrée dans le col (3) et l'ouverture (5), et une conduite d'évacuation de gaz (9). Afin de régler une épaisseur de couche différente ou identique à différents endroits de la paroi de récipient, la conduite d'évacuation de gaz (9) logée à l'extérieur du corps creux (1) est reliée à au moins une conduite de gaz d'échappement (19) faisant saillie en position d'utilisation du corps creux (1, fig. 2) par rapport au col (3) de ce dernier au travers de l'ouverture (5) et de la zone de fermeture (4) dudit corps creux, et l'extrémité intérieure ouverte (20) de la ou des conduites de gaz d'échappement (19) est disposée à l'extérieur de la zone de fermeture (4) à la hauteur de l'extension longitudinale du corps creux (1), la section du corps creux (1) étant supérieure à la section de la zone de fermeture (4) à ce niveau.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001221705A AU2001221705A1 (en) | 2000-02-01 | 2000-12-21 | Device for coating the inner surface of a hollow body |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10004274.0 | 2000-02-01 | ||
DE2000104274 DE10004274A1 (de) | 2000-02-01 | 2000-02-01 | Vorrichtung zum Beschichten der inneren Oberfläche eines Hohlkörpers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001056706A1 true WO2001056706A1 (fr) | 2001-08-09 |
Family
ID=7629405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/013075 WO2001056706A1 (fr) | 2000-02-01 | 2000-12-21 | Dispositif de revetement de la surface interieure d'un corps creux |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2001221705A1 (fr) |
DE (1) | DE10004274A1 (fr) |
WO (1) | WO2001056706A1 (fr) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7481636B2 (en) | 2002-03-18 | 2009-01-27 | Tetra Laval Holdings & Finance S.A. | Device for the production of plastic containers by means of stretch blow moulding and device for coating the inner walls of a plastic container |
US7985188B2 (en) | 2009-05-13 | 2011-07-26 | Cv Holdings Llc | Vessel, coating, inspection and processing apparatus |
DE102004020185B4 (de) * | 2004-04-22 | 2013-01-17 | Schott Ag | Verfahren und Vorrichtung für die Innenbeschichtung von Hohlkörpern sowie Verwendung der Vorrichtung |
US8512796B2 (en) | 2009-05-13 | 2013-08-20 | Si02 Medical Products, Inc. | Vessel inspection apparatus and methods |
US9272095B2 (en) | 2011-04-01 | 2016-03-01 | Sio2 Medical Products, Inc. | Vessels, contact surfaces, and coating and inspection apparatus and methods |
US9458536B2 (en) | 2009-07-02 | 2016-10-04 | Sio2 Medical Products, Inc. | PECVD coating methods for capped syringes, cartridges and other articles |
US9545360B2 (en) | 2009-05-13 | 2017-01-17 | Sio2 Medical Products, Inc. | Saccharide protective coating for pharmaceutical package |
US9554968B2 (en) | 2013-03-11 | 2017-01-31 | Sio2 Medical Products, Inc. | Trilayer coated pharmaceutical packaging |
US9662450B2 (en) | 2013-03-01 | 2017-05-30 | Sio2 Medical Products, Inc. | Plasma or CVD pre-treatment for lubricated pharmaceutical package, coating process and apparatus |
US9664626B2 (en) | 2012-11-01 | 2017-05-30 | Sio2 Medical Products, Inc. | Coating inspection method |
US9764093B2 (en) | 2012-11-30 | 2017-09-19 | Sio2 Medical Products, Inc. | Controlling the uniformity of PECVD deposition |
CN107470061A (zh) * | 2017-08-30 | 2017-12-15 | 四川广安慧诚科艺玻璃有限公司 | 瓶体静电喷涂工装及静电喷涂设备 |
US9863042B2 (en) | 2013-03-15 | 2018-01-09 | Sio2 Medical Products, Inc. | PECVD lubricity vessel coating, coating process and apparatus providing different power levels in two phases |
US9878101B2 (en) | 2010-11-12 | 2018-01-30 | Sio2 Medical Products, Inc. | Cyclic olefin polymer vessels and vessel coating methods |
US9903782B2 (en) | 2012-11-16 | 2018-02-27 | Sio2 Medical Products, Inc. | Method and apparatus for detecting rapid barrier coating integrity characteristics |
US9937099B2 (en) | 2013-03-11 | 2018-04-10 | Sio2 Medical Products, Inc. | Trilayer coated pharmaceutical packaging with low oxygen transmission rate |
US10189603B2 (en) | 2011-11-11 | 2019-01-29 | Sio2 Medical Products, Inc. | Passivation, pH protective or lubricity coating for pharmaceutical package, coating process and apparatus |
US10201660B2 (en) | 2012-11-30 | 2019-02-12 | Sio2 Medical Products, Inc. | Controlling the uniformity of PECVD deposition on medical syringes, cartridges, and the like |
US11066745B2 (en) | 2014-03-28 | 2021-07-20 | Sio2 Medical Products, Inc. | Antistatic coatings for plastic vessels |
US11077233B2 (en) | 2015-08-18 | 2021-08-03 | Sio2 Medical Products, Inc. | Pharmaceutical and other packaging with low oxygen transmission rate |
US11116695B2 (en) | 2011-11-11 | 2021-09-14 | Sio2 Medical Products, Inc. | Blood sample collection tube |
US11624115B2 (en) | 2010-05-12 | 2023-04-11 | Sio2 Medical Products, Inc. | Syringe with PECVD lubrication |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10138696A1 (de) * | 2001-08-07 | 2003-03-06 | Schott Glas | Verfahren und Vorrichtung zum gleichzeitigen Beschichten und Formen eines dreidimensionalen Körpers |
DE102012204689A1 (de) * | 2012-03-23 | 2013-09-26 | Krones Ag | Absaugventil in Plasmabeschichtungsvorrichtung |
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2000
- 2000-02-01 DE DE2000104274 patent/DE10004274A1/de not_active Withdrawn
- 2000-12-21 WO PCT/EP2000/013075 patent/WO2001056706A1/fr active Application Filing
- 2000-12-21 AU AU2001221705A patent/AU2001221705A1/en not_active Abandoned
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EP0773167A1 (fr) * | 1994-08-11 | 1997-05-14 | Kirin Beer Kabushiki Kaisha | Recipients de plastique a revetement mince de carbone, leur appareil de fabrication et procede associe |
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Cited By (39)
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US7481636B2 (en) | 2002-03-18 | 2009-01-27 | Tetra Laval Holdings & Finance S.A. | Device for the production of plastic containers by means of stretch blow moulding and device for coating the inner walls of a plastic container |
DE102004020185B4 (de) * | 2004-04-22 | 2013-01-17 | Schott Ag | Verfahren und Vorrichtung für die Innenbeschichtung von Hohlkörpern sowie Verwendung der Vorrichtung |
US9572526B2 (en) | 2009-05-13 | 2017-02-21 | Sio2 Medical Products, Inc. | Apparatus and method for transporting a vessel to and from a PECVD processing station |
US7985188B2 (en) | 2009-05-13 | 2011-07-26 | Cv Holdings Llc | Vessel, coating, inspection and processing apparatus |
US8512796B2 (en) | 2009-05-13 | 2013-08-20 | Si02 Medical Products, Inc. | Vessel inspection apparatus and methods |
US8834954B2 (en) | 2009-05-13 | 2014-09-16 | Sio2 Medical Products, Inc. | Vessel inspection apparatus and methods |
US10537273B2 (en) | 2009-05-13 | 2020-01-21 | Sio2 Medical Products, Inc. | Syringe with PECVD lubricity layer |
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