INJECTION PORT DEVICE ADAPTED FOR USE WITH INSULIN PUMP

• US 20110160696A1
• Filed: 12/30/2010
• Published: 06/30/2011
• Est. Priority Date: 12/31/2009
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Hoss, Udo
• Application Number:
  US12/982,781
• Publication Number:
  US 20110160696A1
• Time in Patent Office: Days
• US Class Current: 604/506
• CPC Class Codes: A61M 2039/0205 for injecting media
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 5/14248 of the skin patch type
• 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 injection port comprises a body having an outlet delivery cannula configured to pierce subcutaneous tissue of a patient to deliver medication. The port includes multiple injection sites, each of which can be used multiple times, and each of which is sealed. Each injection port is configured to temporarily receive a delivery device and reseal itself when the delivery device is removed. In one embodiment, a seal includes a pierceable stationary septum that reseals itself when a sharp cannula is removed. One injection site also includes locking features to receive a locking device of a delivery device and temporarily lock the delivery device in place at the injection site. The locking device may later be unlocked when delivery is complete and removed. In one application, a diabetic may use one injection site for syringes during the day and the locking injection site for a insulin pump during sleeping hours.

Claims

1. An injection port for delivery of medication through skin, the port comprising:

a body having a top and a bottom surface;

an outlet cannula extending outwardly from the bottom surface of the body, the outlet cannula adapted to puncture skin of a patient, the outlet cannula having an inner surface that defines a cannula passageway through which medication is delivered;

multiple injection sites formed in the body, each of which includes a channel connecting with the cannula passageway and each of which is configured to temporarily receive medication delivery devices multiple times for delivery of medication through the cannula passageway;

wherein each injection site includes a seal that is configured to be bypassed when a delivery device is received by the respective injection site and each of which reseals its respective injection site upon removal of a delivery device from the injection site;

wherein an injection site further includes an associated locking feature configured to temporarily engage a complementary locking mechanism on a delivery device to temporarily secure the delivery device in position at the injection site for delivery of medication to the injection site until the locking mechanism is disengaged from the locking features of the respective injection site and the delivery device is removed therefrom.

2. The injection port of claim 1, wherein the locking feature is configured so as to not interfere with the receipt of delivery devices at the associated locking-feature injection site that do not include a locking mechanism.

3. The injection port of claim 1, wherein the locking feature is configured so as to not interfere with the receipt of delivery devices at the associated locking-feature injection site that can be received by the other injection sites.

4. The injection port of claim 1, wherein a first injection site is located at a position that is ninety degrees from a second injection site.

5. The injection port of claim 4, wherein the first injection site is located at the top surface of the injection port and the second injection site is located at a side surface of the injection port.

6. The injection port of claim 1, wherein a first injection site comprises a first stop configured to limit a length of a delivery device that is received within the first injection site.

7. The injection port of claim 6, wherein the first injection site is configured to receive a first delivery device having a sharpened cannula and an enlarged portion, the seal of the first injection site being stationary, self sealing, and having an outside surface and an inside surface, the inside surface being located within the respective channel of the injection site, the seal having a length so that the sharpened cannula may pierce the seal and extend completely through the inside surface of the seal into the channel of the first injection site while the enlarged portion remains outside the first injection site, the first stop comprising an opening located about the outside surface of the seal, the opening having a size that is smaller than the enlarged portion of the injection device so that the length of penetration of the sharpened cannula of an injection device into the first channel is accordingly limited.

8. The injection port of claim 6, wherein each of the injection sites comprises a stop configured to limit a length of penetration of a delivery device into the respective channel.

9. The injection port of claim 6 wherein the first injection site is configured with a length and a location of the first stop so that a tip of a cannula of a delivery device will be restricted from extending into the cannula passageway.

10. The injection port of claim 1, further comprising an adhesive disposed at the bottom surface, the adhesive adapted to hold the injection port at a selected position on skin of a patient for an extended period so that multiple injections may be made through the port to the patient without having to separately puncture the patient for each injection.

11. The injection port of claim 1, wherein the locking feature comprises a recess formed in the body at the associated injection site, the recess comprising a locking surface, the locking recess and locking surface configured to receive a locking mechanism having an arm with a locking barb, the arm being resiliently bendable to be introduced into and withdrawn from the recess, and the arm formed to be self-springing to a normal position when fully engaged with the recess so that the barb will engage the locking surface of the recess to thereby temporarily lock the mechanism into a fixed position in relation to the injection site.

12. The injection port of claim 1, wherein the locking feature comprises a plurality of recesses formed in the body on either side of the associated injection site, each recess comprising a locking surface, the locking recesses and associated locking surfaces configured to receive a complementary locking mechanism having a plurality of arms with each arm having a locking barb, and the recesses being spaced apart from each other so that the arms of the locking mechanism must resiliently bend inwardly to be introduced into and withdrawn from the recesses, and each arm having a barb to engage a locking surface of the respective recess in which the arm is placed to thereby temporarily lock the mechanism into a fixed position in relation to the associated injection site.

13. The injection port of claim 1, further comprising a locking mechanism configured to be mounted at a distal end of a delivery device to engage the locking features of the body, wherein:

the locking features comprise a plurality of recesses formed in the body on either side of an associated injection site, each recess comprising an inner locking surface;

the locking mechanism comprising a plurality of resiliently bendable locking arms with each arm having a locking barb formed for engaging a locking surface, each arm being resiliently bendable inwardly to be introduced into and withdrawn from a recess, and each arm having a normal configuration at which the barb engages the locking surface of the respective recess in which the arm is placed to thereby temporarily lock the mechanism into a fixed position in relation to the associated injection site; and

each arm having an associated bend tab configured and located so that pressing the tabs toward each other causes the arms to bend inwardly to a position at which they may be introduced into or withdrawn from the recesses.

14. An injection port for delivery of medication through skin, the port comprising:

a body having a top and a bottom surface;

an outlet cannula extending outwardly from the bottom surface of the body, the outlet cannula adapted to puncture skin of a patient, the outlet cannula having an inner surface that defines a cannula passageway through which medication is delivered;

first and second injection sites formed in the body, each of which includes a channel connecting with the cannula passageway and each of which is configured to temporarily receive medication delivery devices multiple times for delivery of medication through the cannula passageway;

wherein each injection site includes a stationary seal that is configured to be pierceable by a sharp cannula of a delivery device when such delivery device is received by the respective injection site and each of which reseals itself and its respective injection site upon removal of the sharp cannula from the seal and the delivery device from the injection site;

wherein the second injection site further includes a locking feature configured to temporarily engage a complementary locking mechanism on a delivery device to temporarily secure the delivery device in position at the second injection site for extended delivery of medication through the second injection site until the locking mechanism is disengaged from the locking feature of the second injection site and the delivery device is removed therefrom;

wherein the locking feature is configured so as to not interfere with the receipt of delivery devices at the second injection site that can be received at the first injection site.

15. The injection port of claim 14, wherein the a first injection site is located at a position that is ninety degrees from a second injection site.

16. The injection port of claim 15, wherein the first injection site is located at the top surface of the injection port and the second injection site is located at a side surface of the injection port.

17. The injection port of claim 14, wherein the first injection site comprises a first stop configured to limit a length of a delivery device that is received within the first injection site.

18. A method of injecting a patient with medication comprising:

inserting a sealed injection port through the skin of a patient and attaching the inserted injection port to the skin to keep it in place for an extended period;

temporarily engaging the injection port at a first sealed injection site thereon with a first delivery device to deliver medication to the patient through the first sealed injection port;

removing the first delivery device after delivery of the medication and resealing the first injection site;

temporarily engaging the injection port at a second sealed injection site thereon with a second delivery device to deliver medication to the patient through the second sealed injection port from a pump;

locking the second delivery device to the second injection port so that the second delivery device will remain securely in operative position at the second injection site of the port for an extended period;

unlocking the second delivery device from the second injection port and removing the second delivery device after delivery of the medication, and resealing the second injection site;

wherein the steps of engaging, delivering, removing, and resealing may be performed multiple times over the extended period that the injection port is in place.

19. The method of injecting of claim 18, wherein the step of engaging comprises piercing a stationary seal with a sharp cannula through which medication is delivered.

20. The method of injecting of claim 18, wherein the step of locking comprises:

bending a pair of locking arms toward each other;

inserting the bent locking arms into recesses formed in the injection port;

once within the recesses, allowing the arms to unbend in the recesses during which each arm engages a locking surface in the recess and resists pulling the arm from the recess thereby locking a delivery device to the injection port; and

after delivery of the medication, bending the arms inward to release the arms from the locking surfaces, and pulling the arms from the recesses to unlock them.