Search

CN-122003261-A - Drug fluid delivery device component with fill interface

CN122003261ACN 122003261 ACN122003261 ACN 122003261ACN-122003261-A

Abstract

Drug fluid delivery device components and associated methods are provided. The delivery device component includes a wearable dispensing unit having a cannula in fluid communication with the reservoir for delivering a drug fluid from the reservoir via a tip of the cannula during use of the dispensing unit, and an engagement disposed at least partially around the cannula on a delivery side of the wearable dispensing unit, and the engagement configured to receive an end portion of a drug-filled device for filling the reservoir via the tip of the cannula. The delivery device component may comprise a detachable support for the wearable dispensing unit, wherein at least a portion of the engagement portion is provided on the detachable support. The portion of the engagement portion on the removable support provides a protective cover for the tip of the sleeve.

Inventors

  • Jack David Pryor

Assignees

  • 露娜健康有限公司

Dates

Publication Date
20260508
Application Date
20241025
Priority Date
20231026

Claims (20)

  1. 1. A drug fluid delivery device component comprising: A wearable dispensing unit having a cannula in fluid communication with a reservoir for delivering a drug fluid from the reservoir via a tip of the cannula during use of the dispensing unit, and An engagement portion disposed at least partially around the cannula on a delivery side of the wearable dispensing unit, and configured to receive an end portion of a drug-filled device for filling the reservoir via the tip of the cannula.
  2. 2. The delivery device component of claim 1, comprising a detachable support for the wearable dispensing unit, wherein at least a portion of the engagement is disposed on the detachable support and a portion of the engagement on the detachable support provides a protective cover for the tip of the cannula.
  3. 3. The delivery device component of claim 2, wherein the at least a portion of the engagement portion is a receiving collar surrounding an opening provided in the detachable support.
  4. 4. A delivery device component according to claim 2 or claim 3, wherein the engagement is formed by a portion provided on a detachable support and a recess surrounding the sleeve in the delivery side of the wearable dispensing unit.
  5. 5. The delivery device component of claim 4, wherein the depth of the recess is a difference between a first length of the cannula required for filling and a second length of the cannula required for insertion into the body.
  6. 6. The delivery device component of any of claims 2 to 5, comprising an attachment arrangement for securing the detachable support to the wearable dispensing unit, wherein the attachment arrangement is provided at the junction and is configured with a latch, the end portion of the drug-filled device preventing release of the latch when inserted in the junction.
  7. 7. The delivery device component of claim 6, wherein the attachment arrangement is configured to automatically release upon interaction with a drive unit when the drive unit is attached to the wearable dispensing unit.
  8. 8. The delivery device component of any of claims 2 to 7, wherein the detachable support comprises an engagement protrusion for engaging with a plunger of the wearable dispensing unit to provide a limit to movement of the plunger.
  9. 9. The delivery device component of any one of claims 2 to 8, comprising an adhesive arrangement comprising a skin adhesive member disposed on the delivery side of the wearable dispensing unit, the skin adhesive member providing a skin adhesive surface configured to be exposed upon removal of the detachable support.
  10. 10. The delivery device component of claim 9, wherein the skin adhesive member is located on two opposite sides within a footprint of the delivery side of the wearable dispensing unit and extends beyond the footprint at one or both opposite ends.
  11. 11. The delivery device component of claim 9 or claim 10, wherein the skin adhesive member comprises a backing layer configured to cover the skin adhesive surface, and the backing layer has at least one attachment portion for attachment to the detachable support, and is configured such that removal of the wearable dispensing unit from the detachable support peels the backing layer from the skin adhesive surface.
  12. 12. The delivery device component of claim 11, wherein the backing layer is a butterfly liner formed of two portions, each portion comprising an adhesive cover portion and an attachment portion, wherein one or both of the attachment portions is folded back over the adhesive cover portion.
  13. 13. The delivery device component of claim 11 or claim 12, wherein the detachable support comprises a liner anchor member extending from a device-facing surface of the detachable support, the liner anchor member configured to engage an attachment portion of the backing layer, and wherein the device-facing surface of the detachable support has a recessed area that receives the liner anchor member.
  14. 14. The delivery device component of claim 12 or claim 13, wherein the attachment portion comprises at least one slit configured for attachment to the anchor member, wherein the slit coincides with a removal direction of the backing layer.
  15. 15. The delivery device component of any of claims 10 to 14, wherein the adhesive arrangement comprises a device adhesive layer attached to a device-facing surface of the skin adhesive member, wherein the device adhesive layer is formed of a pressure sensitive adhesive material and extends to opposite side edges of the skin adhesive member.
  16. 16. The delivery device component of claim 15, wherein the skin adhesive member comprises a skirt portion that is flexible relative to the wearable dispensing unit to provide a flexible attachment to the skin of a user, and the skirt portion has an opposing side skirt located within the footprint, and the device adhesive layer extends to the side skirt.
  17. 17. The delivery device component of claim 16, wherein the detachable support is configured to apply pressure to an area of the device adhesive layer other than the area of the side skirt to which the device adhesive layer extends.
  18. 18. The delivery device component of claim 16 or claim 17, wherein the dispensing unit comprises a flap configured to not adhere to the device adhesive layer at the region of the side skirt.
  19. 19. The delivery device component of claim 16 or claim 17, wherein the dispensing unit comprises a flap configured to flex with the side skirt.
  20. 20. The delivery device component of any of claims 2 to 19, comprising a surrounding enclosure of the wearable dispensing unit, wherein at least a portion of the surrounding enclosure is integrated with the detachable support, and wherein a portion of the surrounding enclosure provides a stable tray during filling of the wearable dispensing unit.

Description

Drug fluid delivery device component with fill interface Cross Reference to Related Applications The present application claims priority from U.S. provisional patent application No. 63/545,792 filed on 10, 26, 2023 and U.S. provisional patent application No. 63/650,541 filed on 22, 5, 2024, which are incorporated herein by reference. Technical Field The present disclosure relates to drug delivery devices for delivering a drug fluid to a human or animal for treating or preventing a disease and associated delivery device components and methods of use. Background Pharmaceutical fluids for the treatment or prophylaxis of diseases in the human or animal body generally need to be administered into the body at intervals. Many different devices for drug fluid infusion are known, including syringes, intravenous drip chambers, cannulas, and the like. Regular administration of pharmaceutical fluids outside of the medical environment presents a number of challenges for ensuring safe and proper administration. One form of pharmaceutical fluid that needs to be administered outside of the medical environment is insulin administration. Millions of diabetics who rely on insulin worldwide rely on Multiple Daily Injections (MDI) to control their diabetes. Insulin pens are the most common method of insulin delivery worldwide. Currently, most insulin is delivered by a common insulin pen rather than by a human using alternative delivery methods like smart insulin pens, insulin pumps, or automated insulin delivery systems. A person using an insulin pen often has difficulty keeping his blood glucose in a desired range throughout the night and may have to wake up multiple times per night to administer insulin, otherwise there may be a risk of hyperglycemia and hypoglycemia. The result is sleep disruption and other problems such as fatigue, anxiety and fainting in waking up in a short period, and more serious health risks in a long period. Automatic Insulin Delivery (AID) systems, such as insulin pumps with feedback from continuous blood glucose monitors (CGM), can continuously control blood glucose levels, including continuous control of blood glucose levels throughout the night. These systems are expensive, can be highly invasive, and may require frequent replacement of the infusion set. Many insulin pen user options rely solely on insulin pens or do not have access to insulin pumps. Switching between daytime use of insulin pens or other non-pump delivery devices and overnight short term use of insulin pumps is a current area of development. The foregoing discussion of the background to the application is intended only to facilitate an understanding of the present application. It should be appreciated that the discussion is not an acknowledgement or admission that any of the material referred to was part of the common general knowledge in the art at the priority date of the application. Disclosure of Invention According to a first aspect of the present invention there is provided a drug fluid delivery device component comprising: A wearable dispensing unit having a cannula in fluid communication with the reservoir for delivering a drug fluid from the reservoir via a tip of the cannula during use of the dispensing unit, and An engagement portion disposed at least partially around the cannula on the delivery side of the wearable dispensing unit, and the engagement portion configured to receive an end portion of the drug filling device for filling the reservoir via a tip of the cannula. In one embodiment, the engagement portion may be configured to receive a standard sized insulin pen tip, wherein the pen tip has a diameter in the range of 9.48 mm to 9.52 mm, as defined for receiving a double ended pen needle assembly. In another embodiment, the engagement portion may be configured to receive a bottle top, wherein the top has a diameter in the range of 19.5 mm to 22 mm. The delivery device component may comprise a detachable support for the wearable dispensing unit, wherein at least a portion of the engagement portion is provided on the detachable support and a portion of the engagement portion on the detachable support provides a protective cover for the tip of the cannula. At least a portion of the engagement portion may be a receiving collar surrounding an opening provided in the removable support such that the protective cover surrounds the sleeve. The engagement portion may be formed by a portion provided on the detachable support and a recess surrounding the cannula in the delivery side of the wearable dispensing unit. The depth of the recess may be the difference between a first length of cannula required for filling and a second length of cannula required for insertion into the body. The delivery device component may comprise an attachment arrangement for securing the detachable support to the wearable dispensing unit. The attachment arrangement may be provided at the joint and may be configured with a latch, the end portion