Corrugated medical tubing system having fitting with anti-tamper sleeve
A fitting for use with metal, corrugated tubing having peaks and valleys includes a nut configured to receive the tubing; a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface; an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface; and an anti-tamper sleeve configured to encompass the nut and adaptor; wherein upon assembly, the tubing is compressed between the adaptor sealing surface and the sealing surface.
1. A fitting for use with metal, corrugated medical tubing having peaks and valleys, the fitting comprising:
a nut configured to receive the tubing;
a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface;
an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface; and
an anti-tamper sleeve configured to encompass the nut and adaptor;
wherein upon assembly, the tubing is compressed between the adaptor sealing surface and the sealing surface of the sealing member;
wherein the anti-tamper sleeve is press-fit over the adaptor and nut via an interference fit between a retaining surface of the adaptor and an inner diameter of the anti-tamper sleeve.
2. The fitting of claim 1 , wherein the compressed tubing comprises a double flare of tubing.
3. The fitting of claim 1 wherein the adaptor sealing surface is curved.
4. The fitting of claim 1 wherein the adaptor includes adaptor engagement threads to engage nut engagement threads on the nut.
5. The fitting of claim 1 wherein the anti-tamper sleeve includes a first inner diameter and a second inner diameter, the first inner diameter is less than the second inner diameter, the first inner diameter engaging the retaining surface of the adaptor.
6. The fitting of claim 1 further comprising a rear jacket lock sleeve and a jacket lock, the jacket lock configured to engage a jacket of the tubing.
7. The fitting of claim 1 wherein the interference fit between the retaining surface of the adaptor and the inner diameter of the anti-tamper sleeve is created by an inner diameter of the anti-tamper sleeve being smaller than a diameter of the retaining surface of the adaptor.
8. The fitting of claim 1 wherein the anti-tamper sleeve has a single, cylindrical outer surface.
9. The fitting of claim 1 wherein the interference fit between the retaining surface of the adaptor and the inner diameter of the anti-tamper sleeve is a radial interference fit.
10. The fitting of claim 1 wherein retaining surface of the adaptor corresponds to a largest outer diameter of the adaptor.
11. A fitting for use with metal, corrugated tubing having peaks and valleys, the fitting comprising:
a nut configured to receive the tubing;
a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface;
an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface;
an anti-tamper sleeve configured to encompass the nut and adaptor; and
a rear jacket lock sleeve and a jacket lock, the jacket lock configured to engage a jacket of the tubing;
wherein the jacket lock includes at least one jacket lock groove on an interior surface of the jacket lock.
12. A fitting for use with metal, corrugated tubing having peaks and valleys, the fitting comprising:
a nut configured to receive the tubing;
a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface;
an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface;
an anti-tamper sleeve configured to encompass the nut and adaptor; and
a rear jacket lock sleeve and a jacket lock, the jacket lock configured to engage a jacket of the tubing;
wherein the jacket lock includes a jacket lock surface and the jacket lock sleeve includes a tapered surface configured to engage the jacket lock surface to compress the jacket lock and reduce a diameter of the jacket lock.
13. A tubing system comprising:
metal, corrugated, medical tubing having peaks and valleys:
a fitting secured to the tubing, the fitting comprising:
a nut positioned about the tubing;
a sealing member located in a valley of the tubing, the sealing member including a sealing surface;
an adaptor engaging the nut, the adaptor including an adaptor sealing surface; and
an anti-tamper sleeve encompassing the nut and adaptor;
wherein the tubing is compressed between the adaptor sealing surface and the sealing surface of the sealing member;
wherein the anti-tamper sleeve is press-fit over the adaptor and nut via an interference fit between a retaining surface of the adaptor and an inner diameter of the anti-tamper sleeve.
14. A method for securing a fitting to metal, corrugated medical tubing having peaks and valleys, the method comprising:
obtaining a nut configured to receive the tubing;
obtaining a sealing member for placement in a valley of the tubing, the sealing member including a sealing surface;
obtaining an adaptor configured to engage the nut, the adaptor including an adaptor sealing surface; and
obtaining an anti-tamper sleeve configured to encompass the nut and adaptor;
obtaining a rear jacket lock sleeve and a jacket lock, the jacket lock configured to engage a jacket of the tubing;
wherein the jacket lock includes a jacket lock surface and the jacket lock sleeve includes a tapered surface configured to engage the jacket lock surface to compress the jacket lock and reduce a diameter of the jacket lock;
placing the sealing member in a valley of the tubing;
mating the adaptor and nut to compress the metal tubing between the adaptor sealing surface and the sealing surface;
press-fitting the anti-tamper sleeve over the adaptor and nut via an interference fit between a retaining surface of the adaptor and an inner diameter of the anti-tamper sleeve.