A gum numbing system includes a wristband configured to be attached to a user' wrist; an electronics housing; two or more finger coverings; two or more gum stimulation assemblies, the two or more gum stimulation assemblies detachably connected to the two or more finger coverings and the two or more gum stimulation assemblies to stimulate a patient's gum before a needle is inserted into the patient's gum; and two or more cables or wires, the two or more cables or wires connecting the electronics housing to the two or more gum stimulation assemblies. The electronics housing is integrated into the wristband or the top surface of the wristband.

Described herein are cryolipolysis devices, systems, and methods for facilitating percutaneous access to a target blood vessel by performing cryolipolysis on subcutaneous adipose tissue obscuring the target blood vessel (e.g., a vessel used for hemodialysis treatment). Generally, the devices include a cooling member carrying a coolant that cools a selected portion of adipose tissue overlying the target blood vessel to reduce the selected portion of adipose tissue, thereby forming a depression in the adipose tissue and allowing the target blood vessel closer to the surface of the skin. In some variations, the cooling member is placed subcutaneously to directly cool the selected portion of adipose tissue. In other variations, the cooling member is placed external to the patient to indirectly cool the selected portion of adipose tissue through the skin.

Active agent delivery devices are provided. Aspects of the devices include an active agent delivery component having an active agent delivery system; and an actuator component, where the active agent delivery component is release-ably engaged to the actuator component. The actuator component includes an active agent delivery system actuator. Either or both components may contain one or more elements of a pain mitigation system and/or a smart device system, e.g., an identifier and identifier reader. Also provided are methods of using the devices.

An injection apparatus includes a base, an anesthetic holder, one or more vibration motors, and a hollow cylinder. The base includes a bottom surface for placement against a patient's skin, wherein the base includes one or more apertures. The anesthetic holder extends from the base and retains an anesthetic, wherein the holder is in fluid communication with the one or more apertures located on the base. The one or more vibration motors are affixed to the holder. The hollow cylinder includes a first end and a second end, wherein the first end is configured to receive an injecting pen and the second end is located adjacent to the base and is configured to allow the injecting pen to contact the patient's skin.

An instrument is applied to body tissue of a body part to produce vibration to thereby reduce pain of injection or other pain producing stimulus. The device has a frame, and a source of vibration connected to the frame. A removable tip is connectable to the frame which has a distal end that is connected to the source of vibration when the tip is connected to the frame, to thereby vibrate the distal end when the source of vibration is activated. At the distal end of the tip are mutually facing arms which define an opening between them. Each arm forms a projection which extends at an angle from the arm. The projections are shaped to fit the body part so that the arms and projections are sized and dimensioned to position, retain, and transmit vibration to the body part in a position proximate the opening.

A device for assisting a subcutaneous injection is disclosed. The device includes features which prevent an unwanted needle stick and assist the gripping of tissue for performing a safe and effective subcutaneous injection.

A drug delivery device includes a blunt cannula and a reservoir. The blunt cannula has a cylindrical wall that defines an axial passage between a first end and a second end of the blunt cannula. The wall has at least a first tapered region at the first end to define an opening in fluid communication with the axial passage and adapted at the first end to resist interruption of fluid flow through the axial passage and out of the first end of the blunt cannula. The reservoir is connected to the second end of the blunt cannula.

A single-use needle cover configured to obscure, protect, or hide at least a portion of a needle from view before, during, and/or after an injection and/or aspiration procedure is disclosed. In some embodiments, the cover includes a housing at least partially containing the needle and configured to couple to a syringe, wherein the housing includes an axis and a guide member. In some embodiments, a sleeve has a plurality of tracks configured to slidingly receive the guide member, wherein the sleeve is configured to retract, extend, and rotate with respect to the housing. In some embodiments, after the sleeve has been retracted and extended one time, a first locking member inhibits further retraction of the sleeve and a second locking member inhibits rotation of the sleeve.

A drug delivery device includes a blunt cannula and a reservoir. The blunt cannula has a cylindrical wall that defines an axial passage between a first end and a second end of the blunt cannula. The wall has at least a first tapered region at the first end to define an opening in fluid communication with the axial passage and adapted at the first end to resist interruption of fluid flow through the axial passage and out of the first end of the blunt cannula. The reservoir is connected to the second end of the blunt cannula.

A method and an apparatus for applying an anesthetic includes a receptacle having an upper end, a substantially hollow interior, a lower end having a tube or nozzle extending therefrom, and an attachment for attaching to the barrel of a syringe or vice versa. The receptacle receives a container or canister containing an endothermic gas or vapor(propellant) that rapidly absorbs heat when released to the atmosphere. A depressible actuating member or trigger propels the gas or vapor through an outlet nozzle that is oriented to project a stream of gas or vapor along a delivery axis that intersects a delivery axis of the needle, therefore, the gas or vapor can be successively delivered to an injection site with minimal repositioning of the housing.