A method of making a suture needle having a bendable region includes obtaining a suture needle made of a martensitic alloy having an austenitic transition temperature. The suture needle has a proximal section, a distal section with a sharpened tip, and a bendable region located between the proximal and distal sections. The method includes heating the suture needle to a first temperature that is greater than the austenitic transition temperature of the martensitic alloy and quenching the suture needle to room temperature to harden the martensitic alloy, After heating and quenching, the bendable region of the suture needle is heated locally to a second temperature that is above 800 degrees Celsius, but below the austenitic transition temperature of the martensitic alloy so that the bendable region is softened and made more flexible relative to the proximal and distal sections of the suture needle.

The present invention relates to a method for manufacturing a nonmagnetic water-cooled microwave ablation needle. The manufacturing method is designed for a microwave ablation needle of a nonmagnetic material and has a proper process procedure, favorable assembly quality, and high production efficiency. The produced nonmagnetic water-cooled microwave ablation needle is applicable to microwave tumor ablation surgery in a nuclear magnetic resonance imaging environment, and helps a doctor in charge to clearly determine a position of a tumor, improve piercing precision, have preferable control on a whole surgery process, improve a success rate of the surgery, reduce damage on surrounding normal tissues as much as possible on the premise of effectively inactivating the tumor, alleviate pain of a patient, and shorten a recovery cycle.

A regular metallic, cylindrical tubular needle cannula (1) is subjected to a metal etching liquid (21) in the inside lumen (4) thereby increasing the inside diameter and enhancing the flow properties while maintaining the outside appearance. The inside diameter is only increased over a controlled length (7) of the full length of the needle cannula (1) leaving sufficient length and wall thickness to also taper the outside diameter.

Novel apparatus and methods for coating surgical needles in batch processes are disclosed. The apparatus and methods are particularly useful for applying uniform silicone lubricious coatings to surgical needles in bulk quantities using a novel separation and spray coating system and method.

The present disclosure relates to a method of manufacturing a needle for root canal treatment devices having improved ductility. The method of the present disclosure includes a step of manufacturing a hollow needle body in a desired shape using an alloy or a single metal, a step of filling the hollow of the needle body with a packing member, a step of heat-treating the needle body at a predetermined temperature under an inert gas atmosphere after the needle body is placed in a vacuum chamber, and a step of cooling and hardening the needle body.

A crimping device for securing a suture to a double-pointed medical suture needle includes a lower block and an upper block that can be pressed against each other to secure the suture to the double-pointed medical suture needle. Each of the lower block and upper block have a first groove configured to accommodate the suture; and a second groove configured to accommodate the double-pointed medical suture needle, the second groove extending in a second groove extension substantially perpendicular to a first groove extension of the first groove, wherein the second groove comprises a protrusion at an intercept of the first groove and second groove. The disclosure further relates to a method of securing at least one suture to at least one double-pointed medical suture needle.

An in-plane metal microneedle array and a manufacturing method therefor is disclosed. A large-size metal sheet is cut into small metal sheets. Inner sides of the upper and the lower cover plates of the tooling are provided with grooves matched with the sizes of the small metal sheets. Through holes are formed at edges around the cover plates. The metal sheets are placed in the grooves and fastened through bolts. The geometry and the size of a sheet microneedle array are designed, and a CAD model of the plane microneedles is built. A wire path is cut according to the CAD model. A few materials are reserved on both sides of substrates of the microneedle array without cutting. The unprocessed parts on both sides of the microneedle substrate are cut to obtain an in-plane metal microneedle array with a plurality of microneedle bodies.

A conical needle includes a hollow needle body has a distal end and a proximal end. The needle body has a substantially consistent cross-sectional diameter along the entire length of a central longitudinal axis of the needle body between the proximal end and the distal end of the needle body. The interior of the needle body defines a fluid pathway extending along the longitudinal axis. A conical portion is located at the distal end of the needle body. The conical portion has a sidewall, a distal end, and a proximal end. The conical portion forms a sharp tip located at the distal end of the conical portion. A lateral opening is located fully within the sidewall of the conical portion. The lateral opening is in fluid communication with the fluid pathway.

A conical needle includes a hollow needle body has a distal end and a proximal end. The needle body has a substantially consistent cross-sectional diameter along the entire length of a central longitudinal axis of the needle body between the proximal end and the distal end of the needle body. The interior of the needle body defines a fluid pathway extending along the longitudinal axis. A conical portion is located at the distal end of the needle body. The conical portion has a sidewall, a distal end, and a proximal end. The conical portion forms a sharp tip located at the distal end of the conical portion. A lateral opening is located fully within the sidewall of the conical portion. The lateral opening is in fluid communication with the fluid pathway.

A chemically etched needle is provided herein. The chemically etched needle includes a metal base having a first side and a second side. The chemically etched needle also includes a chemically etched blade at one end of the metal base and formed at an intersection of a distal diverging surface and a proximal diverging surface, at least one of the diverging surfaces slopes inward towards the second side.