Inflation device with detachable housing and related methods

Patent metadata

Field	Value
Publication number	US-10765839-B2
Application number	US-201715469082-A
Country	US
Kind code	B2
Filing date	Mar 24, 2017
Priority date	Mar 28, 2016
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

A syringe assembly or inflation device that includes a detachable housing. A pressure-sensing syringe assembly or inflation device can include both a syringe barrel and a housing that is coupled to the syringe barrel in a locked configuration. The inflation device can transition from the locked configuration to the unlocked configuration in which the housing is separable from the syringe barrel. Related methods are also disclosed.

First claim

The invention claimed is:

1. A syringe assembly comprising:
an elongate syringe barrel defining a fluid reservoir;
an adaptor coupled to the elongate syringe barrel;
a housing coupled to the adaptor;
a lock coupled to the housing;
a pressure transducer;
an aperture that extends through a wall of the elongate syringe barrel such that the fluid reservoir of the elongate syringe barrel is in fluid communication with the pressure transducer; and
a key,
wherein the syringe assembly is configured to transition from a locked configuration in which the lock prevents movement of the adaptor relative to the housing to an unlocked configuration in which the adaptor is free to move relative to the housing, and
wherein the key is configured to extend through an orifice in the housing to displace the lock, thereby transitioning the syringe assembly from the locked configuration to the unlocked configuration.

2. The syringe assembly of claim 1 , wherein the syringe assembly is configured to prevent complete withdrawal of the key from the housing.

3. The syringe assembly of claim 1 , wherein the key comprises an elongate shaft, the elongate shaft comprising a tip configured to displace the lock.

4. The syringe assembly of claim 3 , wherein:
the key further comprises a hub and a plurality of arms;
the elongate shaft extends in a first direction from the hub; and
each arm of the plurality of arms extends in a second direction from the hub toward a display screen within the housing, wherein the second direction differs from the first direction.

5. The syringe assembly of claim 4 , wherein the housing comprises one or more catches that are configured to:
allow at least partial insertion of the key into the housing such that the plurality of arms are disposed proximal of the one or more catches; and
prevent complete withdrawal of the key from the housing once the plurality of arms are disposed proximal of the one or more catches.

6. The syringe assembly of claim 1 , wherein the housing comprises one or more barrier walls that are configured to limit movement of the key in a proximal direction.

7. The syringe assembly of claim 1 , wherein the lock comprises a protrusion having a surface that is angled such that proximal displacement of the key causes the key to contact the surface of the protrusion, thereby displacing the lock to transition the syringe assembly from the locked configuration to the unlocked configuration.

8. The syringe assembly of claim 1 , wherein:
the adaptor comprises a channel; and
the key extends through at least a portion of the channel of the adaptor.

9. The syringe assembly of claim 1 , wherein the lock is disposed inside of the housing.

10. The syringe assembly of claim 1 , wherein the adaptor comprises a plurality of flanges, wherein each flange of the plurality of flanges is in contact with the housing.

11. The syringe assembly of claim 1 , further comprising a circuit board and a display screen, wherein the circuit board and the display screen are each disposed within the housing.

12. The syringe assembly of claim 1 , wherein the pressure transducer is disposed between the adaptor and the lock.

13. A method of separating components of a pressure-sensing inflation device, the method comprising:
obtaining an inflation device comprising:
an elongate syringe barrel defining a fluid reservoir;
an adaptor coupled to the elongate syringe barrel;
a housing coupled to the adaptor, wherein the housing at least partially encloses one or more of a circuit board and a display screen;
a lock coupled to the housing;
a pressure transducer;
an aperture that extends through a wall of the elongate syringe barrel such that the fluid reservoir of the elongate syringe barrel is in fluid communication with the pressure transducer; and
a key,
wherein the inflation device is configured to transition from a locked configuration in which the lock prevents movement of the adaptor relative to the housing to an unlocked configuration in which the adaptor is free to move relative to the housing, and
wherein the key is configured to extend through an orifice in the housing to displace the lock, thereby transitioning the syringe assembly from the locked configuration to the unlocked configuration,

moving the key toward the lock such that the key displaces the lock; and
separating the housing from the syringe barrel.

14. The method of claim 13 , wherein moving the key toward the lock comprises at least partially inserting the key into the housing.

15. The method of claim 13 , wherein the lock is coupled to and at least partially disposed within the housing.

16. The method of claim 13 , wherein:
the key comprises a hub and an elongate shaft that extends from the hub; and
moving the key toward the lock comprises pushing directly onto the hub of the key.

17. The method of claim 13 , further comprising sending one or more of the circuit board, the display screen, and the housing to a refurbisher after the syringe barrel has been separated from the housing.

18. The method of claim 13 , further comprising removing one or more of the circuit board and the display screen from the housing after the housing has been separated from the syringe barrel.

19. The method of claim 13 , wherein the lock comprises a surface that is angled such that moving the key toward the lock causes the key to contact the surface and displace the lock.

Assignees

• Merit Medical Systems Inc

Inventors

• Davis Jon
• Weerakoon Prasad
• Heyborne Russell D

Classifications

• A61M16/044

  External cuff pressure control or supply, e.g. synchronisation with respiration · CPC title

• A61M2205/073

  Syringe, piston type · CPC title

• A61M2016/0027

  pressure meter · CPC title

• A61M2205/8206

  battery-operated · CPC title

• A61M2205/502

  User interfaces, e.g. screens or keyboards · CPC title