Medical device with safety features

• US 10,596,324 B2
• Filed: 11/20/2014
• Issued: 03/24/2020
• Est. Priority Date: 11/20/2013
• Status: Active Grant

• Current Assignee: Brighter AB
• Original Assignee: Brighter AB
• Inventors: Sjostedt, Truls, Hall, Leif
• Primary Examiner(s): Zhang, Jenna
• Application Number:
  US15/037,128
• Publication Number:
  US 20160279335A1
• Time in Patent Office: 1,951 Days
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150954 Means for the detection of operative contact with patient, e.g. by temperature sensitive sensor
• CPC Class Codes: A61B 5/151 Devices specially adapted for taking samples of capillary blood, e.g. by lancets , needles or blades
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15125 comprising a vacuum or compressed fluids
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/13 with means for the detection of operative contact with patient, e.g. lip sensor
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3553 remote, e.g. between patient's home and doctor's office
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/58 Means for facilitating use, e.g. by people with impaired vision
• CPC Class Codes: A61M 2205/8212 with means or measures taken for minimising energy consumption
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/3146 : Priming, e.g. purging, reducing backlash or clearance
• CPC Class Codes: A61M 5/31533 : Dosing mechanisms, i.e. setting a dose administrating mechanisms A61M5/31565
• CPC Class Codes: A61M 5/31551 : including axial movement of dose setting member
• CPC Class Codes: A61M 5/31585 : performed by axially moving actuator, e.g. an injection button
• CPC Class Codes: A61M 5/31593 : Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
• CPC Class Codes: G16H 20/17 : delivered via infusion or injection
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: G16Z 99/00 : Subject matter not provided for in other main groups of this subclass

Abstract

There is provided a portable medical device for injecting insulin comprising a blood glucose meter, a first display that is capable of displaying the blood glucose content of a blood sample as determined by the blood glucose meter, means for injecting insulin in a patient comprising means for setting the amount of insulin to be injected comprising a second display that shows the amount of insulin to be injected characterized in that the device comprises a deactivation means that automatically switches off the first display.

Claims

1. A portable medical device for injecting insulin into a user, comprising:

a control circuit;

a blood glucose meter;

an electronically driven display configured to be driven by the control circuit to display a glucose concentration of a blood sample as determined by the blood glucose meter;

a user manipulable member for selectively setting a user-defined amount of insulin that the portable medical device is to inject, settings of the manipulable member include at least two settings, including;

a first setting in which no insulin is ejectable from the portable medical device and in which glucose concentration is displayed on the display, and

a second setting in which the user-defined amount of insulin is ejectable from the portable medical device;

a sensor that detects change from the first setting to the second setting and wherein, upon detection of the change from the first setting to the second setting and prior to ejection of any of the user-defined amount of insulin, the control circuit controlling the electronically driven display from displaying the glucose concentration to switch off the electronically driven display; and

a second display that is configured to display the amount of insulin corresponding to a current setting of the user manipulable member.

2. The portable medical device of claim 1, wherein the second display mechanically changes in accordance with the user manipulable member.

3. The portable medical device of claim 1, further comprising a drive mechanism that forces ejection of the insulin from the portable medical device, the drive mechanism being powered by the user.

4. The portable medical device of claim 1, wherein the control circuit automatically switches on the electronically driven display when the user manipulable member is changed from the second setting to the first setting.

5. The portable medical device of claim 1, further comprising:

a lancet retainer configured relative to a first end of a housing of the portable medical device so that a sharpened end of a lancet retained by the lancet retainer is directed from the first end during use to draw a blood sample from the user; and

an insulin cartridge retainer configured relative to a second end of the housing so that a sharpened end of an injection needle connected to an insulin cartridge that is retained by the insulin cartridge retainer is directed from the second end of the housing, the second end opposite the first end so that the sharpened end of the lancet and the needle are longitudinally opposed.

6. The portable medical device of claim 5, wherein an injection actuator is located at the first end of the housing.

7. The portable medical device of claim 5, wherein the electronically driven display is located on the housing approximately midway between the lancet retainer and a position where the injection needle connects to the insulin cartridge.

8. The portable medical device of claim 5, wherein the blood glucose meter is configured to test blood on a blood test strip, a port to receive the blood test strip located on a sidewall of the housing between the first and second ends.