Housings for use with inflation devices and related methods

Patent metadata

Field	Value
Publication number	US-11117330-B2
Application number	US-201615202834-A
Country	US
Kind code	B2
Filing date	Jul 6, 2016
Priority date	Jul 6, 2015
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A housing for use in connection with an inflation device can be coupled to a syringe body by a snap-fit connection. The snap-fit type mechanism can include an adaptor and a lock, such as a depressible lock. The housing can enclose an electrical circuit and a display screen that rests on a plurality of resilient pins. The circuit board may be held in place within the housing via one or more heat pins. The inflation device can be configured to measure pressure within a fluid reservoir of a syringe.

First claim

The invention claimed is:

1. A syringe assembly comprising:
an elongate syringe barrel defining a fluid reservoir;
a housing that is coupled to the elongate syringe barrel via a snap-fit connection;
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,
wherein the snap-fit connection comprises:
an adaptor that is coupled to the elongate syringe barrel, the adaptor comprising a plurality of flanges, each flange including a lower surface extending parallel to a bottom surface of the adaptor,

wherein each lower surface is in overlapping contact with an upper surface of a lower portion of the housing, and
wherein the upper surface is an inside surface within a cavity of the housing; and
a lock that is coupled to the housing, the lock preventing movement of the adaptor relative to the housing.

2. 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.

3. The syringe assembly of claim 2 , wherein the pressure transducer is disposed between the adaptor and the lock.

4. The syringe assembly of claim 3 , wherein the pressure transducer, circuit board, and display screen are configured for electrical communication with one another.

5. The syringe assembly of claim 1 , wherein the lock is configured to engage with the adaptor to prevent movement of the adaptor relative to the housing after the lock has been depressed.

6. The syringe assembly of claim 1 , wherein the lock comprises a first portion for coupling to the housing and a second portion that is configured to deflect upward as the adaptor is inserted into the housing.

7. The syringe assembly of claim 6 , wherein the pressure transducer is in electrical communication with the circuit board via a solderless electrical connection.

8. The syringe assembly of claim 6 , wherein the pressure transducer is in electrical communication with the circuit board via an elastomeric connector.

9. The syringe assembly of claim 8 , wherein the elastomeric connector extends through the lock.

10. The syringe assembly of claim 2 , wherein the display screen is supported by a plurality of resilient pins that are coupled to the housing, wherein the plurality of resilient pins are configured to deflect due to one or more forces applied to the display screen.

11. The syringe assembly of claim 10 , wherein the plurality of resilient pins are vertically oriented when undeflected, and the resilient pins are configured to deflect in a generally outward direction due to one or more forces applied to the display screen.

12. The syringe assembly of claim 1 , wherein the aperture has a radius of less than or equal to 0.8 mm in length.

13. The syringe assembly of claim 12 , wherein the aperture has a radius of less than or equal to 0.6 mm in length.

14. The syringe assembly of claim 1 , wherein at least one flange is in overlapping contact with an angled portion of the upper surface.

Assignees

• Merit Medical Systems Inc

Inventors

• Weerakoon Prasad
• Davis Jon
• Heyborne Russell D
• Wilde Larry T

Classifications

• A61M25/10182 Primary

  Injector syringes · CPC title

• A61M25/10188

  Inflation or deflation data displays · CPC title

• B29C65/58 Primary

  Snap connection · CPC title