# US 12,005,244 B2 · Needle-based device based on direct wing-based coupling of a needle shield to a barrel thereof and safety mechanism implemented therein

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- Number: US 12,005,244 B2
- Document ID: US12005244B2
- Status: Granted
- Kind: B2
- Application number: 18/221,848
- Filed: 2023-07-13
- Published: 2023-11-09
- Granted: 2024-06-11
- Earliest claimed: 2020-03-27
- Assignees: Medivena Sp. Z O.O.
- Applicants: Jaroslaw Moleda; Maciej Zurawicz; Robert Grzelak
- Inventors: Jaroslaw Moleda; Maciej Zurawicz; Robert Grzelak
- Web page: https://patentgrep.com/patent/US12005244B2

## CPC

- A61M 5/3202: {Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; protectors for sharps A61B50/3001)}
- A61M 5/3129: {Syringe barrels (A61M5/3205, A61M5/50 take precedence)}
- A61M 5/3148: {Means for causing or aiding aspiration or plunger retraction}
- A61M 5/31571: {Means preventing accidental administration (for automatic syringes A61M5/20)}
- A61M 5/3234: {Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user}
- A61M 5/3243: {being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel (devices for protecting guide needles in combination with catheters A61M25/0612)}
- 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 5/3271: {with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position}
- A61M 2005/2073: {preventing premature release, e.g. by making use of a safety lock}
- 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

A needle-based device includes a barrel as a body thereof and a needle. A portion of the needle is received within the barrel and glued thereinto to cause the needle to protrude from the barrel. The needle-based device also includes a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device. The barrel includes wings on lateral sides of an outer wall thereof. The wings extend perpendicular to a length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device.

## Claims

### Claim 1

A needle-based device comprising:
a barrel as a body of the needle-based device;
a needle, a portion of which is received within the barrel and glued thereinto to cause the needle to protrude from the barrel;
a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device; and
a lock button with a first end, the first end is either integrally formed with the needle shield or external to the needle shield and then coupled to the needle shield, and a length of the lock button is completely external to the needle shield,
wherein the needle shield is locked with the lock button in the first state of disuse of the needle-based device based on:
the lock button comprising a hook at a second end thereof that passes through a groove formed on the needle shield such that, during the locking of the needle shield:
the length of the lock button completely external to the needle shield is parallel to a length of the needle shield and the entire protruding length of the needle, and
the hook is perpendicular to the length of the needle shield, the length of the lock button and the entire protruding length of the needle, and
wherein the barrel comprises wings on lateral sides of an outer wall thereof, the wings extending perpendicular to a length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device.

### Claim 2 (depends on 1)

The needle-based device of claim 1, wherein:
the barrel comprises a needle port proximate an end thereof integrally formed with the barrel, the needle port being within an inner cross-sectional width of the barrel and concentric with the outer wall of the barrel, and the needle port extending from the end of the barrel thereinto within the inner cross-sectional width of the barrel such that the needle port is entirely encompassed within the inner cross-sectional width of the barrel and an outer boundary of the needle port along the length of the barrel is at most flush with an outer cross-sectional boundary of the barrel at the end of the barrel, and
the portion of the needle is received within an inner cross-sectional width of the needle port and glued thereinto.

### Claim 3 (depends on 2)

The needle-based device of claim 2, wherein the portion of the needle is glued into the inner cross-sectional width of the needle port using an Ultra-Violet (UV) resin.

### Claim 4 (depends on 1)

The needle-based device of claim 1, wherein:
the needle shield is retracted in a first direction toward the barrel to apply a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof,
the needle-based device is transitioned back to the first state of disuse thereof following the second state of use in accordance with applying a second force in a second direction diametrically opposite to the first direction, and
the encompassing of the entire protruding length of the needle by the needle shield in the first state of disuse of the needle-based device is securedly maintained based on the coupling of the needle shield to the barrel via the wings.

### Claim 5 (depends on 1)

The needle-based device of claim 1, further comprising a spring resting on the barrel to additionally encompass the entire protruding length of the needle in the first state of disuse of the needle-based device.

### Claim 6 (depends on 5)

The needle-based device of claim 5,
wherein the needle shield encompasses an entire length of the spring in addition to the entire protruding length of the needle in the first state of disuse of the needle-based device.

### Claim 7 (depends on 6)

The needle-based device of claim 6, wherein:
the needle shield is retracted in a first direction toward the barrel to compress the spring that applies a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof, and
the needle-based device is automatically transitioned back to the first state of disuse thereof immediately following the second state of use in accordance with automatic decompression of the spring that provides for a second force in a second direction diametrically opposite to the first direction.

### Claim 8

A needle-based device comprising:
a barrel as a body of the needle-based device, the barrel comprising a needle port proximate an end thereof integrally formed with the barrel, the needle port being within an inner cross-sectional width of the barrel and concentric with an outer wall of the barrel, and the needle port extending from the end of the barrel thereinto within the inner cross-sectional width of the barrel such that the needle port is entirely encompassed within the inner cross-sectional width of the barrel and an outer boundary of the needle port along a length of the barrel is at most flush with an outer cross-sectional boundary of the barrel at the end of the barrel;
a needle, a portion of which is received within an inner cross-sectional width of the needle port and glued thereinto to cause the needle to protrude from the barrel;
a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device; and
a lock button with a first end, the first end is either integrally formed with the needle shield or external to the needle shield and then coupled to the needle shield, and a length of the lock button is completely external to the needle shield,
wherein the needle shield is locked with the lock button in the first state of disuse of the needle-based device based on:
the lock button comprising a hook at a second end thereof that passes through a groove formed on the needle shield such that, during the locking of the needle shield:
the length of the lock button completely external to the needle shield is parallel to a length of the needle shield and the entire protruding length of the needle, and
the hook is perpendicular to the length of the needle shield, the length of the lock button and the entire protruding length of the needle, and
wherein the barrel comprises wings on lateral sides of the outer wall thereof, the wings extending perpendicular to the length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device.

### Claim 9 (depends on 8)

The needle-based device of claim 8, wherein:
the needle shield is retracted in a first direction toward the barrel to apply a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof,
the needle-based device is transitioned back to the first state of disuse thereof following the second state of use in accordance with applying a second force in a second direction diametrically opposite to the first direction, and
the encompassing of the entire protruding length of the needle by the needle shield in the first state of disuse of the needle-based device is securedly maintained based on the coupling of the needle shield to the barrel via the wings.

### Claim 10 (depends on 8)

The needle-based device of claim 8, further comprising a spring resting on the barrel to additionally encompass the entire protruding length of the needle in the first state of disuse of the needle-based device.

### Claim 11 (depends on 10)

The needle-based device of claim 10,
wherein the needle shield encompasses an entire length of the spring in addition to the entire protruding length of the needle in the first state of disuse of the needle-based device.

### Claim 12 (depends on 11)

The needle-based device of claim 11, wherein:
the needle shield is retracted in a first direction toward the barrel to compress the spring that applies a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof, and
the needle-based device is automatically transitioned back to the first state of disuse thereof immediately following the second state of use in accordance with automatic decompression of the spring that provides for a second force in a second direction diametrically opposite to the first direction.

### Claim 13 (depends on 8)

The needle-based device of claim 8, wherein the portion of the needle is glued into the inner cross-sectional width of the needle port using a UV resin.

### Claim 14

A needle-based device comprising:
a barrel as a body of the needle-based device;
a needle, a portion of which is received within the barrel and glued thereinto to cause the needle to protrude from the barrel;
a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device; and
a lock button with a first end, the first end is either integrally formed with the needle shield or external to the needle shield and then coupled to the needle shield, and a length of the lock button is completely external to the needle shield,
wherein the needle shield is locked with the lock button in the first state of disuse of the needle-based device based on:
the lock button comprising a hook at a second end thereof that passes through a groove formed on the needle shield such that, during the locking of the needle shield:
the length of the lock button completely external to the needle shield is parallel to a length of the needle shield and the entire protruding length of the needle, and
the hook is perpendicular to the length of the needle shield, the length of the lock button and the entire protruding length of the needle,
wherein the barrel comprises wings on lateral sides of an outer wall thereof, the wings extending perpendicular to a length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device, and
wherein the needle shield is retracted in a first direction toward the barrel to apply a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof.

### Claim 15 (depends on 14)

The needle-based device of claim 14, wherein:
the barrel comprises a needle port proximate an end thereof integrally formed with the barrel, the needle port being within an inner cross-sectional width of the barrel and concentric with the outer wall of the barrel, and the needle port extending from the end of the barrel thereinto within the inner cross-sectional width of the barrel such that the needle port is entirely encompassed within the inner cross-sectional width of the barrel and an outer boundary of the needle port along the length of the barrel is at most flush with an outer cross-sectional boundary of the barrel at the end of the barrel, and
the portion of the needle is received within an inner cross-sectional width of the needle port and glued thereinto.

### Claim 16 (depends on 15)

The needle-based device of claim 15, wherein the portion of the needle is glued into the inner cross-sectional width of the needle port using a UV resin.

### Claim 17 (depends on 14)

The needle-based device of claim 14, wherein:
the needle-based device is transitioned back to the first state of disuse thereof following the second state of use in accordance with applying a second force in a second direction diametrically opposite to the first direction, and
the encompassing of the entire protruding length of the needle by the needle shield in the first state of disuse of the needle-based device is securedly maintained based on the coupling of the needle shield to the barrel via the wings.

### Claim 18 (depends on 14)

The needle-based device of claim 14, further comprising a spring resting on the barrel to additionally encompass the entire protruding length of the needle in the first state of disuse of the needle-based device,
wherein the needle shield encompasses an entire length of the spring in addition to the entire protruding length of the needle in the first state of disuse of the needle-based device.

### Claim 19 (depends on 18)

The needle-based device of claim 18, wherein:
the needle shield is retracted in the first direction toward the barrel to compress the spring that applies the first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for the second state of use thereof, and
the needle-based device is automatically transitioned back to the first state of disuse thereof immediately following the second state of use in accordance with automatic decompression of the spring that provides for a second force in a second direction diametrically opposite to the first direction.

### Claim 20 (depends on 19)

The needle-based device of claim 19, wherein the encompassing of the entire protruding length of the needle and the encompassing of the entire protruding length of the spring by the needle shield in the first state of disuse of the needle-based device are securedly maintained based on the coupling of the needle shield to the barrel via the wings.