Subcutaneous infusion device and method including release feature for adhesive portion

• US 20050113761A1
• Filed: 08/13/2004
• Published: 05/26/2005
• Est. Priority Date: 11/10/2003
• Status: Active Grant

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Inventors: Bresina, Timothy, Faust, Mark, Marrs, James
• Granted Patent: US 7,850,658 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An infusion device including a site and a set for delivery of a substance to a patient. The site can include a cannula that is introduced into a subcutaneous layer of skin of the patient. The site is coupled to the skin of a patient by an adhesive portion including a release feature that allows the patient to remove the adhesive portion from the skin. The set can be coupled to the site by, for example, placing the set over the site and moving the set from an unlocked to a locked position. The substance can then be delivered through the set to the site, and from the site into the patient through the cannula. The set can be oriented at multiple rotational orientations with respect to the site, and can be coupled and uncoupled with the site multiple times.

Claims

1. A subcutaneous infusion device, comprising:

a site including a cannula extending from the site and configured to be introduced into a subcutaneous layer of skin of the patient;

an adhesive portion including a first surface coupled to the site and a second surface including an adhesive configured to be coupled to the skin of the patient; and

a release feature coupled to the adhesive portion, wherein the release feature assists the patient in removing the adhesive portion from the skin.

2. The device of claim 1, wherein the release feature is positioned between the adhesive portion and the skin.

3. The device of claim 1, wherein the release feature is a tab.

4. The device of claim 3, wherein the tab extends beyond an outer periphery of the adhesive portion.

5. The device of claim 3, wherein the tab does not extend beyond an outer periphery of the adhesive portion.

6. The device of claim 1, wherein the adhesive portion includes an indicator to assist the patient in locating the release feature.

7. The device of claim 6, wherein the indicator is a visual mark.

8. The device of claim 1, wherein the release feature is a portion of the second surface of the adhesive portion whereat the adhesive has been voided.

9. A subcutaneous infusion device, comprising:

a site including a cannula extending from the site and configured to be introduced into a subcutaneous layer of skin of the patient;

an adhesive portion including a first surface coupled to the site and a second surface including an adhesive configured to be coupled to the skin of the patient; and

a region coupled to the adhesive portion, wherein the region defines an exposed surface that is substantially free of adhesive so that when the adhesive portion is applied to the skin of the patient the region is positioned between the adhesive portion and the skin and the region does not adhere to the skin, and wherein the patient can grasp the region to remove the adhesive portion from the skin.

10. The device of claim 9, wherein the region is a tab.

11. The device of claim 10, wherein the tab does not extend beyond an outer periphery of the adhesive portion.

12. The device of claim 9, wherein the adhesive portion is at least partially semi-transparent so that the patient can visually locate the region through the adhesive portion.

13. The device of claim 9, wherein the adhesive portion includes an indicator to assist the patient in locating the region.

14. The device of claim 13, wherein the indicator is a visual mark.

15. The device of claim 9, wherein the region is formed of sufficient rigidity so that the patient can feel the region through the adhesive portion.

16. A subcutaneous infusion device, comprising:

a site including a cannula extending from the site and configured to be introduced into a subcutaneous layer of skin of the patient; and

a sheet construction for joining the site to the patient, the sheet construction defining a lower surface including a first region including adhesive and a second region substantially free of adhesive, the second region allowing the patient to remove the sheet construction and the site from the patient.

17. The device of claim 16, wherein the sheet construction includes an indicator to assist the patient in locating the second region.

18. A method of using an infusion device, comprising:

providing an adhesive portion including a first surface coupled to a site, and a second surface including an adhesive configured to be coupled to the skin of the patient, and a release feature coupled to the adhesive portion;

contacting the release feature;

moving the release feature away from the skin of the patient to remove the adhesive portion from the skin.

19. The method of claim 18, further comprising using a visually indication of a location of the release feature to locate the release feature.

20. The method of claim 18, further comprising using a tactile indication of a location of the release feature to locate the release feature.