# US 10,946,138 B2 · Subcutaneous infusion set with side port fluid connector

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- Number: US 10,946,138 B2
- Document ID: US10946138B2
- Status: Granted
- Kind: B2
- Application number: 16/245,797
- Filed: 2019-01-11
- Published: 2019-05-16
- Granted: 2021-03-16
- Earliest claimed: 2012-07-31
- Assignees: Becton, Dickinson and Company
- Applicants: Becton, Dickinson and Company
- Inventors: Ralph L. Sonderegger
- Web page: https://patentgrep.com/patent/US10946138B2

## CPC

- A61M 5/162: Needle sets, i.e. connections by puncture between reservoir and tube
- A61M 5/158: Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body}
- A61M 39/0247: {Transcutaneous or percutaneous access sites to the inside of the body}
- A61M 2005/1585: {Needle inserters}
- A61M 2005/1586: {Holding accessories for holding infusion needles on the body}
- A61M 2005/1587: {suitable for being connected to an infusion line after insertion into a patient}
- A61M 2039/0258: {for vascular access, e.g. blood stream access}
- A61M 2039/027: {having a particular valve, seal or septum}
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A method of coupling an extension set hub comprising a blunt cannula, with an infusion set comprising a base, an upper septum, a lower septum, and a septum cap enclosing said upper and lower septa, said septum cap comprising at least one radial port and at least one axial port, the method comprising the steps of affixing said base to a skin surface of a user, moving said extension set hub in a direction substantially parallel to said base until said blunt cannula passes through said radial port and between said upper septum and said lower septum within said septum cap, and rotating said extension set hub about said base until reaching a desired position.

## Claims

### Claim 1

A method of coupling an extension set hub comprising a blunt cannula, with an infusion set comprising a base, an upper septum, a lower septum, an interface between said upper and lower septa, and a septum cap enclosing said upper and lower septa, said septum cap comprising at least one radial port and at least one axial port, the method comprising the steps of:
affixing said base to a skin surface of a user;
moving said extension set hub in a direction substantially parallel to said base until said blunt cannula passes through said radial port and between said upper septum and said lower septum within said septum cap; and
rotating said extension set hub freely around said interface until reaching a desired position.

### Claim 2 (depends on 1)

The method of claim 1, wherein said extension set hub comprises:
a snap-ring comprising a substantially circular ring; and
a plurality of guidance walls extending therefrom.

### Claim 3 (depends on 2)

The method of claim 2, further comprising releasably securing said plurality of guidance walls to an outer circumference of said septum cap.

### Claim 4 (depends on 2)

The method of claim 2, further comprising guiding, via said plurality of guidance walls, said blunt cannula through said radial port and into said interface.

### Claim 5 (depends on 2)

The method of claim 2, further comprising flexing the snap-ring to deflect around and engage the septum cap.

### Claim 6 (depends on 2)

The method of claim 2, further comprising flexing the snap-ring to expand around and disengage the septum cap.

### Claim 7 (depends on 1)

The method of claim 1, further comprising rotatably sliding said blunt cannula into said interface.

### Claim 8 (depends on 1)

The method of claim 1, further comprising rotatably coupling said septum cap with said base.

### Claim 9 (depends on 1)

The method of claim 1, further comprising removing said blunt cannula from said radial port.

### Claim 10 (depends on 9)

The method of claim 9, further comprising self-closing an opening in said interface when said blunt cannula is removed.

### Claim 11 (depends on 1)

The method of claim 1, further comprising rotating said extension set hub freely up to 360 degrees about said interface of said base to reach the desired position.