# US 11,433,223 B2 · Delivery devices and methods

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- Number: US 11,433,223 B2
- Document ID: US11433223B2
- Status: Granted
- Kind: B2
- Application number: 16/560,664
- Filed: 2019-09-04
- Published: 2019-12-26
- Granted: 2022-09-06
- Earliest claimed: 2016-07-01
- Assignees: Boston Scientific Scimed, Inc.
- Applicants: Boston Scientific Scimed, Inc.
- Inventors: Laura Christakis; Ashleigh Peterson; Jeffrey Bean; Claude Clerc; Andrew Pic; Gerald Fredrickson; Stan Gilbert; Amanda Smith; Jose Vega
- Web page: https://patentgrep.com/patent/US11433223B2

## CPC

- A61M 31/002: {Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time (artificial gland structures or devices A61F2/022; intra-uterine contraceptive devices A61F6/14; tampons for introducing into the vagina A61F13/20, A61L15/00; suppositories or bougies for intra-vaginal or intra-uterine application A61K9/02; physical forms of medicinal preparations for sustained or differential drug release A61K9/20, A61K9/50)}
- A61B 17/0057: {Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect (sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009)}
- A61M 1/304: {Treatment chamber used as reservoir, e.g. centrifuge bowl or filter with movable membrane}
- A61M 11/007: {Syringe-type or piston-type sprayers or atomisers}
- A61M 11/02: operated by air {or other gas} pressure applied to the liquid {or other product} to be sprayed or atomised {(sprayers for horticulture A01G, A01H; killing insects A01M; air humidifying by nozzles F24F6/14, F24F6/18; cooling by spraying F28B, F28C)}
- A61M 13/00: Insufflators for therapeutic or disinfectant purposes {, i.e. devices for blowing a gas, powder or vapour into the body (hand-held units in which gas flow is produced by muscular energy at the moment of use B05B11/062)}
- A61B 2017/00676: {promotion of self-sealing of the puncture}
- A61M 15/0008: {rotating by airflow}
- A61M 2202/064: Powder
- A61M 2205/332: Force measuring means
- A61M 2206/11: Laminar flow
- A61M 2206/16: Rotating swirling helical flow, e.g. by tangential inflows
- 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)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Implementations of a delivery device and method are disclosed. One implementation is a delivery device comprising a flow chamber with an inlet port for receiving a fluid flow in the flow chamber, and an outlet port for exiting a material from the flow chamber. The flow chamber may include a formation portion in which a suspension of the material is formed, and a collection portion that directs the suspension toward and/or into the outlet port. An amount of the material may collect in the collection portion adjacent the outlet port. The device may further comprise an insertion port for permitting insertion of the material in the flow chamber, and/or a pusher operable to move the amount of material through the outlet port. Related devices and methods also are disclosed.

## Claims

### Claim 1

A device comprising:
an inlet port for receiving a fluid flow;
an outlet port in communication with the inlet port;
a collection portion between the inlet port and the outlet port;
a pusher configured for insertion into the collection portion and operable to move an amount of material from the collection portion towards the outlet port, wherein:
the pusher is biased toward or away from the outlet port by a resilient element,
the pusher is configured to move between a first position proximal to the outlet port and a second position at least partially distal to the outlet port when the resilient element moves from a compressed state to an expanded state,
the pusher is configured to move towards the outlet port along a direction of the fluid flow when the resilient element moves from the compressed state to the expanded state, and
a portion of the pusher is configured to contact the amount of material to move the amount of material towards the outlet port; and
a formation portion in communication with the collection portion, wherein the formation portion includes a semi-spherical surface defining a volume for receiving the fluid flow.

### Claim 2 (depends on 1)

The device of claim 1, wherein the formation portion includes a semi-frustoconical surface configured to funnel the fluid flow towards the collection portion.

### Claim 3 (depends on 1)

The device of claim 1, further comprising a stopper movable between a first position to compress the resilient element into the compressed state, and a second position to release the resilient element into the expanded state.

### Claim 4 (depends on 1)

The device of claim 1, further comprising a sheath coupled to, and extending distally from, the outlet port, wherein the pusher is operable to push the amount of material into the sheath, and wherein a distal end of the sheath includes at least one opening configured to distribute the amount of material.

### Claim 5 (depends on 4)

The device of claim 4, wherein the at least one opening of the distal end of the sheath is moveable between an open position and a closed position.

### Claim 6 (depends on 4)

The device of claim 4, further comprising a removable plug or cap for the at least one opening of the distal end of the sheath.

### Claim 7 (depends on 4)

The device of claim 4, wherein at least the distal end of the sheath includes a hydrophilic coating.

### Claim 8 (depends on 1)

The device of claim 1, further comprising a body defining a flow chamber and configured to receive the pusher; wherein the pusher includes a stopper portion protruding from a radially outer surface of pusher, wherein the body includes an offshoot configured to allow the stopper portion to pass through the offshoot, wherein alignment of the stopper portion and the offshoot is configured to cause the resilient member to move from the compressed state to the expanded state.