# US 2016/0354550 A1 · Boot remover

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- Number: US 2016/0354550 A1
- Document ID: US20160354550A1
- Status: Published application
- Kind: A1
- Application number: 15/037,901
- Filed: 2014-11-25
- Published: 2016-12-08
- Earliest claimed: 2013-11-28
- Assignees: Sanofi-Aventis Deutschland GmbH
- Applicants: Sanofi-Aventis Deutschland GmbH
- Inventors: Chris Ward; Gareth Roberts; Graham Wilson; Troy Baker
- Web page: https://patentgrep.com/patent/US20160354550A1

## CPC

- A61M 5/3204: {Needle cap removers, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices}
- A61M 5/002: {Packages specially adapted therefor, e.g. packages for syringes or needles or kits for diabetics}
- A61M 5/3257: {Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means}
- A61M 5/326: {Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user}
- A61M 5/3202: {Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; protectors for sharps A61B50/3001)}
- A61M 2005/3125: {Display means, e.g. to indicate dose setting}
- A61M 2005/3247: {Means to impede repositioning of protection sleeve from needle covering to needle uncovering position}
- A61M 2005/3267: {Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body}
- 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

The invention relates to a boot remover (10) for removing a protective needle boot (11) from a drug delivery device (1), wherein the boot remover (10) is substantially sleeve shaped with an internal diameter and a length adapted to receive and substantially cover a needle shield (4), wherein the boot remover (10) is arranged to engage the protective needle boot (11) when attacked to the drug delivery device (1). Furthermore, the invention relates to a drug delivery device (1) comprising a boot remover (10).

## Claims

### Claim 1

A drug delivery device for dispensing a dose of a drug, comprising:
a support body having a first end defining a first opening and a second end defining a second opening,
a syringe barrel sealed by a stopper slidably disposed therein along an axial direction and adapted to have an integrated needle or to be coupled with a needle assembly comprising a needle, wherein the syringe barrel is positioned within the support body,
a protective needle boot arrangeable over the needle on the syringe barrel,
a needle shield adapted to be coupled to one of the ends of the support body and slidably disposed relative to the support body for covering or exposing the needle,
an outer body coupled to the other end of the support body and slidably disposed relative to the support body; and
a boot remover for removing the protective needle boot from the syringe barrel, wherein the boot remover is substantially sleeve shaped with an internal diameter and a length adapted to receive and substantially cover the needle shield, wherein the boot remover is arranged to engage the protective needle boot when attached to the drug delivery device.

### Claim 2 (depends on 1)

The drug delivery device according to claim 1, wherein the boot remover comprises a clamping collar arranged to engage a coupling protrusion of the protective needle boot, such that the protective needle boot is axially coupled to the boot remover.

### Claim 3 (depends on 2)

The drug delivery device according to claim 2, wherein the clamping collar is arranged to allow rotation of the protective needle boot relative to the boot remover.

### Claim 4 (depends on 3)

The drug delivery device according to claim 3, wherein the coupling protrusion of the protective needle boot is mushroom-shaped for engaging in a bore within the clamping collar.

### Claim 5 (depends on 1)

The drug delivery device according to claim 1, wherein the boot remover is arranged to engage the protective needle boot by friction.

### Claim 6 (depends on 1)

The drug delivery device according to claim 1, wherein the boot remover is arranged as a handle integrally shaped with the protective needle boot.

### Claim 7 (depends on 1)

The drug delivery device according to claim 1, comprising a direction indicator for indicating a direction for removing the protective needle boot.

### Claim 8 (depends on 1)

The drug delivery device according to claim 1, comprising at least one grip feature.

### Claim 9 (depends on 2)

The drug delivery device according to claim 2, wherein the clamping collar forms a recess with the coupling protrusion located in the center of the clamping collar.

### Claim 10 (depends on 2)

The drug delivery device according to claim 2, wherein the coupling protrusion is arranged at a distal end of the protective needle boot.

### Claim 11 (depends on 1)

The drug delivery device according to claim 1, wherein a plunger rod is coupled to the stopper, and wherein a proximal portion of the plunger rod is adapted to be coupled to the outer body.

### Claim 12 (depends on 1)

The drug delivery device according to claim 1, wherein a detent mechanism is arranged to constrain movement of the outer body relative to the support body.

### Claim 13 (depends on 1)

The drug delivery device according to claim 1, wherein a sleeve is arrangeable over the support body.

### Claim 14 (depends on 13)

The drug delivery device according to claim 13, wherein the sleeve is transparent.

### Claim 15 (depends on 1)

The drug delivery arrangement according to claim 1, wherein the syringe barrel contains a pharmaceutically active compound.

### Claim 16 (depends on 1)

The drug delivery device according to claim 1, wherein the boot remover is arranged to engage the protective needle boot by friction and by at least one barb engageable in a recess or behind a shoulder on the protective needle boot.

### Claim 17 (depends on 1)

The drug delivery device according to claim 1, wherein the boot remover is arranged to engage the protective needle boot by at least one barb engageable in a recess or behind a shoulder on the protective needle boot.

### Claim 18

A method comprising:
grabbing an outer body or support body of the drug delivery device; and
pulling a boot remover from the drug delivery device in a distal direction, the boot remover removing a proactive needle boot from the needle shield and removing the protective needle boot from a central opening of a needle shield.
