Septum

Claim 2

A septum comprising, a unit with a pair of chamber to divide said one chamber into dual fill needle penetrable seal members, at least one chamber sections, said needle stop means chamber within said unit for receiving f luid, and comprising a second needle stop section defining a needle stop means provided between said needle perimeter of said dual fill chamber sections and penetrable seal members for preventing a needle 95 extending from one of said needle penetrable seal that penetrates one of said needle penetrable seal members toward the other said needle penetrable members from passing through the other said seal member, and flow means communicable with needle penetrable seal member. each of said dual fill chamber sections extending

Claim 3

The septum as claimed in claim 1, wherein said outwardly of said dual fill chamber sections. needle stop means includes a needle stop section 100 17. A septum comprising, a unit with two fill that extends substantially across said one chamber chamber sections, a pair of needle penetrable seal and divides said one chamber into two fill chamber means for sealing the respective fill chamber sections. sections, and needle stop means provided between

Claim 4

The septum as claimed in claim 2, including said needle penetrable seal means for preventing a means for permitting communication between said 105 needle that penetrates one of said need le'pen etra ble fill chamber sections. seal means from passing through the other said

Claim 5

The septum as claimed in claim 3, wherein said needle penetrable seal. means. communication means includes openings in said 18. The septum as claimed in claim 17, wherein needle stop section. said needle stop means includes a movable needle

Claim 6

The septum as claimed in claim 3, wherein said 110 stop section. communication means include a predetermined 19. The septum as claimed in claim 17, wherein clearance between said needle stop section and said said needle stop means is immovable. fill chamber sections. 20. The septum as claimed in claim 17, wherein

Claim 7

The septum as claimed in claim 1, wherein said said needle stop means include means for septum includes a second chamber. 115 permitting communication between said fill

Claim 8

The septum as claimed in claim 6, including a chamber sections. communication space outside said two chambers 21. The septum as claimed in claim 17, including a for permitting communication between said two communication space outside said fill chamber chambers. sections for permitting communication between

Claim 9

The septum as claimed in claim 6, wherein said 120 said fill chamber sections. needle stop means are immovable. 22. A method of making a septum comprising,

Claim 10

The septum as claimed in claim 2, wherein said a) forming a unit with a pair of fill chamber needle stop section is in a fixed position in said unit. sections that are divided by a needle stop section,

Claim 11

The septum as claimed in claim 2, wherein b) sealing the fill chamber sections with said needle stop section is deflectable. 125 respective needle penetrable seal members,

Claim 12

The septum as claimed in claim 2, wherein c) establishing communication between each of said needle stop section is movable in said chamber said fill chamber sections, and such that said movement causes expansion of one d) providing fluid flow means for directing flow of of said fill chamber sections and contraction of the fluid away from and/or toward said fill chamber other said fill chamber section. 130 sections. 6 GB 2 192 338 A 6 23. A septum, substantially as described with accompanying drawings. reference to, and as shown in, Figures 1 to 3, or 5 24. A method of making a septum, substantially as Figures 5 to 7, or Figures 8 to 12, or Figure 13, of the described. Printed for Her Majesty's Stationery Office by Courier Press, Leamington Spa, 1/88. Demand No. 8991685. Published by the Patent Office, 25 Southampton Buildings, London, WC2A 1AY, from which copies may be obtained.