An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system may also include a means to limit and/or adjust the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The catheter may also include structures which provide radial and/or lateral support to the guide tubes so that the guide tubes expand uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall. A method can involve injection/infusion of the ablative fluid over an extended time period of at least 10 seconds or with two injections at two different penetration depths to reduce or eliminate patient pain during ablation.

A pre-filled medical delivery assembly assembled and configured to allow delivery of a single dose of a therapeutic agent (e.g., vaccine, drug, medicament, etc.) from a Blow-Fill-Seal (BFS) vial to a patient may include a multi-bevel cannula piercing element such as for rotational axial engagement to pierce a seal of the BFS vial.

a flow pathway subassembly (264, 278) including medicament flow pathway components of a medical device, and a holder (270, 280) configured for holding the components so that a center of gravity of the subassembly is disposed substantially on a central longitudinal axis of the subassembly.

Method of safely refilling or accessing a reservoir of an implanted fluid delivery device. The method includes guiding a bent or angled needle into the reservoir while observing an image the implanted fluid delivery device and with the bent or angled needle being oriented in a direction that faces away from an imaging device probe oriented in a substantially vertical orientation and overlying the implanted fluid delivery device.

This invention relates to an injection needle with a multi-surface penetration end which stretches soft tissue with minimal cutting upon insertion. This stretching reduces patient discomfort, the force required for urging needle into the soft tissue, and soft tissue coring. The structure of the multi-surface needle decreases the penetration footprint of the needle into the soft tissue around the needle penetration site, reducing tissue inflammation and increasing healing time. The needle also contains dual injection openings on opposing sides, behind the penetration end to discharge injected fluid over a wider area with lower pressure.

A drug delivery device for injecting medicament, the device including a main body having a surface for contacting a patient, an actuation button (110, 420, 436) movably disposed relative to the main body, and a reservoir disposed within the main body for containing a medicament. The device also includes a needle having a distal end for insertion into a patient, and a lumen extending proximally from the distal end, wherein the lumen is fluidly connectable with the reservoir. The device further includes a removable needle cover (114, 400) for selectively covering the distal end of the needle and selectively preventing movement of the actuation button relative to the main body that initiates activation of the device.

An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system may also include a means to limit and/or adjust the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The catheter may also include structures which provide radial and/or lateral support to the guide tubes so that the guide tubes expand uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall. A method can involve injection/infusion of the ablative fluid over an extended time period of at least 10 seconds or with two injections at two different penetration depths to reduce or eliminate patient pain during ablation.

A multi-beveled needle point geometry for hypodermic needles such as pen needles. A proximal bevel is formed at a first angle of inclination, a pair of intermediate bevels at a second angle of inclination, and a pair of distal bevels at a third angle of inclination and differing angles of rotation. The second angle of inclination is substantially different than the first angle of inclination to define a marked apex at the intersections between the proximal bevel and the intermediate bevels. At least one smooth transition is typically provided between adjacent bevels, between a bevel and an outer surface of the needle, and/or between a bevel and the lumen of the needle.

Disclosed are applicators and methods injecting of a liquid anesthetic into a dental patient with no or minimal pain. In accordance with one embodiment the applicator is for intraligamentary injection and includes an elongated, thin member having an open distal free formed of a resilient and somewhat conformable material suitable for producing a substantially fluid-tight interface with the anatomic structures at the gingival sulcus to inject the anesthetic therein. In another embodiment the applicator includes a flexible skirt surrounding a sharpened cannula, with the cannula being movable with respect to the skirt. The skirt is arranged to receive the anesthetic to anesthetize the gum, whereupon the cannula can then pierce the gum to inject the anesthetic into the underlying anatomic structure.

Disclosed are applicators and methods injecting of a liquid anesthetic into a dental patient with no or minimal pain. In accordance with one embodiment the applicator is for intraligamentary injection and includes an elongated, thin member having an open distal free formed of a resilient and somewhat conformable material suitable for producing a substantially fluid-tight interface with the anatomic structures at the gingival sulcus to inject the anesthetic therein. In another embodiment the applicator includes a flexible skirt surrounding a sharpened cannula, with the cannula being movable with respect to the skirt. The skirt is arranged to receive the anesthetic to anesthetize the gum, whereupon the cannula can then pierce the gum to inject the anesthetic into the underlying anatomic structure.