Assistive device for subcutaneous injections or implants

Patent metadata

Field	Value
Publication number	US-11058830-B2
Application number	US-201716093672-A
Country	US
Kind code	B2
Filing date	Mar 14, 2017
Priority date	Apr 15, 2016
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

An assistive device for subcutaneous injections or implants. The assistive device is placed under a blood pressure cuff that displaces the skin and subcutaneous tissues of a patient at an insertion site in order to allow guided insertion of a needle or implant applicator into a subcutaneous fat layer. The skin and subcutaneous tissue is displaced or drawn, via pressure applied by the blood pressure cuff, through an injection window of a device body into a hollow cavity of the device body. A guide channel leads from a front side of the device body into the hollow cavity, and an applicator of an adapter is inserted through the guide channel into the subcutaneous fat layer.

First claim

What is claimed is:

1. A method of using an assistive device comprising:
attaching an assistive device to a pressure cuff, the assistive device including a device body, the device body having a skin-contacting surface having an injection window opening to a hollow cavity of the device body, the hollow cavity of the device body being at least partially defined by a top surface, a guide channel connecting a front side of the device body to the hollow cavity, the guide channel disposed in a direction parallel to the top surface of the hollow cavity, and an outer surface connected to an attachment mechanism;
securing the pressure cuff around an arm of a patient;
inflating the pressure cuff to a target pressure;
inserting an applicator of an adapter through the guide channel into the hollow cavity in the device body of the assistive device, the applicator having an implant therein; and
placing the implant in the patient via the applicator.

2. The method of using the assistive device of claim 1 , wherein the target pressure is 40 mm Hg.

3. The method of using the assistive device of claim 1 , and prior to the step of securing the pressure cuff around the arm of the patient, identifying an insertion site.

4. The method of using the assistive device of claim 3 , wherein the insertion site is between eight and ten centimeters above an epicondyle on an underside of the arm of the patient.

5. The method of using the assistive device of claim 3 , and prior to the step of securing the pressure cuff around the arm of the patient, disinfecting the insertion site.

6. The method of using the assistive device of claim 3 , and in the step of inserting the applicator through the guide channel into the hollow cavity in the device body of the assistive device, inserting the applicator in a direction parallel to a skin contacting surface at the identified insertion site.

7. The method of using the assistive device of claim 1 , and in the step of inflating the pressure cuff to the target pressure, forcing skin and subcutaneous tissues through the injection window of the device body into the hollow cavity of the device body.

8. The method of using the assistive device of claim 7 , wherein the forcing the skin and subcutaneous tissues through the injection window of the device body into the hollow cavity of the device body includes sliding the skin along a curved edge of the injection window.

9. The method of using the assistive device of claim 1 , wherein the step of placing the implant includes inserting the implant into a subcutaneous fat layer.

10. The method of using the assistive device of claim 1 , wherein the implant is one of a contraceptive implant, a pharmaceutical implant, an osmotic pump, a biodegradable implant, a recreational implant, and an embedded device.

Assignees

• Univ Michigan Regents

Inventors

• Sienko Kathleen
• Mohedas Ibrahim
• Sarvestani Amir Sabet
• Bertch Corey
• Franklin Anthony
• Joyce Adam
• Mccormick Jacob
• Shoemaker Michael

Classifications

• A61M5/42

  having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced · CPC title

• A61M5/14

  Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor · CPC title

• A61B17/3403

  Needle locating or guiding means · CPC title

• A61M5/142

  Pressure infusion, e.g. using pumps · CPC title

• A61M5/425 Primary

  Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means · CPC title