1. A blood plasma collecting flask made of plastic for the storage of blood plasma in the frozen state, comprising a flask body (1) which in the horizontal section has a cross-section with a rectangular basic shape and has on its upper side a flask neck (2), characterised in that the lateral faces of the flask body (2) respectively define a flat or slightly inwardly curved area (3) adjoining which are areas rounded towards the face surfaces.
2. The blood plasma collecting flask according to claim 1, characterised, in that the lateral faces of the flask body (2) respectively define a slightly inwardly curved area (3), the curvature having a maximum depth of 2 mm, in particular of 1.5 mm.
3. The blood plasma collecting flask according to claim 1, characterised in that the flat or slightly inwardly curved areas (3) have a hexagonal form the base sides (3a, 3b) of which lie on the crossover areas of the lateral faces to the upper side and lower side of the flask body (1).
4. The blood plasma collecting flask according to claim 3, characterised in that the flat or slightly curved areas (3) have a uniformly hexagonal form such that the corners (E) lying between the base sides (3a, 3b) are positioned approximately half way up the flask body (1).
5. The blood plasma collecting flask according to claim 3, characterised in that the sides of the hexagonal areas (3) lying between the base sides (3a, 3b) are slightly rounded.
6. The blood plasma collecting flask according to claim 1, characterised in that three adjustable feet (4) are provided on the lower side of the flask body (1).
7. The blood plasma collecting flask according to claim 1, characterised in that the flask body (1) has a number of reinforcing ridges (5) that extend around the flask body (1).
8. The blood plasma collecting flask according to claim 7, characterised in that the reinforcing ridges (5) act at least partially as filling height indicators.
9. The blood plasma collecting flask according to claim 7, characterised in that a total of four reinforcing ridges (5) are formed on the flask body (1), in particular two reinforcing ridges (5) being provided in the upper half of the flask body and two reinforcing ridges (5) being provided in the lower half of the flask body.
10. The blood plasma collecting flask made of plastic for the storage of blood plasma in the frozen state, comprising a flask body (1) which in the horizontal section has a cross-section with a rectangular basic shape and has on its upper side a flask neck (2), in particular according to any of the preceding claims, characterised in that connection points (7a, 7b) are provided on the upper side of the flask body (1) on opposite sides of the flask neck (2) and spaced apart from the latter to the side, of which one connection point (7a) is used for filling the flask body (1) with blood plasma, and the other connection point (7b) is used for ventilation and the taking of samples, and in that substantially L-shaped connectors (9) are provided at the connection points (7a, 7b), the one connector arm respectively being connected to the flask body (1), and the other connector arm being directed towards the flask neck (2) and bearing a tube (10) which extends over the flask neck (2).
11. The blood plasma collecting flask according to claim 10, characterised in that the connector arms facing away from the flask body (2) are aligned such that the tubes (10) connected to the latter are spaced apart from one another over the flask neck (2).
12. The blood plasma collecting flask according to claim 10, characterised in that a lid (11) is fixed or is fixable to the flask neck (2), and in particular to a covering plate (2a) closing the flask neck (2) on its upper side, and the lid (11) is designed such that in the fixed state it overlaps the sections of the tubes (10) projecting over the flask neck (2) and protects them against access from the outside.
13. The blood plasma collecting flask according to claim 12, characterised in that the lid (11) has notches (12) assigned to the tubes (10) and open towards the lower side of the lid which engage with the tube sections projecting over the flask neck (2) and are passed through by the latter when the lid (11) is fixed onto the flask neck.
14. The blood plasma collecting flask according to claim 12, characterised in that the lid has on the inside holding bars which overlap and position the tube sections projecting over the flask neck when the lid is fixed onto the flask neck.
15. The blood plasma collecting flask made of plastic for the storage of blood plasma in the frozen state, comprising a flask body (1) which has on its upper side a flask neck (2), a lid (11) being fixed or fixable onto the flask neck (2) and in particular onto a covering plate (2a) closing the flask neck (2) on its upper side, in particular according to claim 1, characterised in that a locking mechanism is provided by means of which the lid (11) is fixed onto the flask neck (2) and in particular onto the covering plate (2a) when the lid (11) is pushed onto the flask neck (2) from above, the locking mechanism having a first locking position in which the lid (11) can be released again from the flask neck (2), and a second locking position in which the lid (11) is pushed further onto the flask neck (2) than in the first locking position and in which the lid (11) is prevented from being released from the flask neck (2).
16. The blood plasma collecting flask according to claim 15, characterised in that lugs (13) are formed on the lower, open lid edge which, upon pushing the lid (11) onto the flask neck (2), engage with a holding bar formed on the flask neck (2), and in particular onto the outer edge region of the covering plate (2a), are elastically expanded, and when pushed on further spring back elastically and engage behind the holding bar thus establishing the first locking position.
17. The blood plasma collecting flask according to claim 15, characterised in that on the upper side of the flask neck (2), and in particular on the covering plate (2a), a bar (14) projecting perpendicularly and on the inside of the lid a retainer (15) corresponding to the bar (14) are formed which engage with one another when the lid (11) is pushed onto the flask neck (2), and that locking elements (16, 17) of the locking mechanism are formed on the bar (14) and the retainer (15) which engage with one another in the second locking position.
18. The blood plasma collecting flask according to claim 17, characterised in that a locking opening (16) is formed in the bar (14) in which a locking element (17) on the retainer side engages in the second locking position.
19. The blood plasma collecting flask made of plastic for the storage of plasma in the frozen state, having a flask body (1) which has on its upper side a flask neck (2), a lid (11) being fixed or being fixable onto the flask neck (2) and in particular onto a covering plate (2a) closing the flask neck (2) on its upper side, in particular according to claim 1, characterised in that holding elements, in particular holding clips (18), are provided on the lid (11), and in particular on the upper side of the lid, for releaseably attaching test tubes (19).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A magnetic recording head, comprising:
a head body;
an energy source coupled to the head body;
a waveguide core disposed within the head body, wherein the waveguide core has a trapezoidal cross section when viewed from the air bearing surface, wherein the trapezoid has a first side having a first width and a second side having a second width that is less than the first width;
cladding material disposed at least partially around the waveguide core; and
a plasmonic metal element disposed adjacent the cladding material and the second side of the waveguide core.
2. The magnetic recording head of claim 1, wherein the waveguide core comprises Ge, Si, amorphous Si, GaAs, GZO (Gallium Zinc Oxide), GaP, ITO, TiO2, TeO2, GaN, ZrO2, AlN, Ta2O5, Al2O3 and AlSb.
3. The magnetic recording head of claim 1, wherein the plasmonic metal element comprises Au, Ag, Cu or alloys thereof.
4. The magnetic recording head of claim 1, wherein the first side has a width of between about 90 nm and about 1 micron.
5. The magnetic recording head of claim 1, wherein the second side has a width of greater than 0 nm and up to about 200 nm.
6. The magnetic recording head of claim 1, wherein the plasmonic metal element has a width that is greater than the width of the second side.
7. The magnetic recording head of claim 1, wherein the cladding material comprises AlAs, Al2O3, borosilicate glass, fluoride glass and SiO2.
8. A hard disk drive, comprising:
a magnetic media; and
a magnetic recording head disposed opposite the magnetic media, wherein the magnetic recording head comprises:
a head body;
an energy source coupled to the head body;
a waveguide core disposed within the head body, wherein the waveguide core has a trapezoidal cross section when viewed from the air bearing surface, wherein the trapezoid has a first side having a first width and a second side having a second width that is less than the first width;
cladding material disposed at least partially around the waveguide core; and
a plasmonic metal element disposed adjacent the cladding material and the second side of the waveguide core.
9. The hard disk drive of claim 8, wherein the waveguide core comprises Ge, Si, amorphous Si, GaAs, GZO (Gallium Zinc Oxide), GaP, ITO, TiO2, TeO2, GaN, ZrO2, AlN, Ta2O5, Al2O3 and AlSb.
10. The hard disk drive of claim 8, wherein the plasmonic metal element comprises Au, Ag, Cu or alloys thereof.
11. The hard disk drive of claim 8, wherein the first side has a width of between about 90 nm and about 1 micron.
12. The hard disk drive of claim 8, wherein the second side has a width of greater than 0 nm and up to about 200 nm.
13. The hard disk drive of claim 8, wherein the plasmonic metal element has a width that is greater than the width of the second side.
14. The hard disk drive of claim 8, wherein the cladding material comprises AlAs, Al2O3, borosilicate glass, fluoride glass and SiO2.
15. A method of making a magnetic recording head, comprising:
depositing cladding material on a substrate;
depositing waveguide core material on the cladding material;
etching the waveguide core material to form a waveguide core, wherein the waveguide core has a trapezoidal cross section when viewed from an air bearing surface, wherein the trapezoid has a first side having a first width and a second side having a second width that is less than the first width; and
depositing a plasmonic metal element adjacent the cladding material and the second side of the waveguide core.
16. The method of claim 15, wherein the waveguide core comprises Ge, Si, amorphous Si, GaAs, GZO (Gallium Zinc Oxide), GaP, ITO, TiO2, TeO2, GaN, ZrO2, AlN, Ta2O5, Al2O3 and AlSb.
17. The method of claim 15, wherein the plasmonic metal element comprises Au, Ag, Cu or alloys thereof.
18. The method of claim 15, wherein the first side has a width of between about 90 nm and about 1 micron.
19. The method of claim 15, wherein the second side has a width of greater than 0 nm and up to about 520 nm.
20. The method of claim 15, wherein the plasmonic metal element has a width that is greater than the width of the second side.