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.

A dual needle set for hair loss treatment includes a thread configured with a plurality of strands and having a single or multiple gold threads, a first lone needle in which an end of the suture thread is inserted, and a second short needle in which the other end of the suture thread is inserted more easily to the same implanting hole of pre-implanted gold threads for tying or fixing. A needle part is formed at an end of the first and second needles, an installation groove is formed with a predetermined depth at the other end of the first and second needles so that the suture thread can be inserted, and the first and second needles include individually a bent part formed with a predetermined angle.

A rotational driver that comprises a interactive portion, wherein each interactive portion comprises a first extended member and a second extended member, a rotational system and a linear motion system, wherein the rotational driver permits a left or right handed surgeons to perform the surgical suturing procedure in a less complicated and more secure way by allowing more control over the angled suturing needle and the area to be stitched, even when the suturing area is small, deep, and/or restricted. Also the rotational driver comprises several configurations at the interactive portion ends to provide selected angles for the needle during the suturing procedure.

Disclosed embodiments include apparatuses, systems, and methods for guiding a needle to facilitate suturing, such as in surgical anastomosis. In an illustrative embodiment, an apparatus includes at least one guide member configured to extend from a suturing mechanism that is configured to revolve a helically-shaped needle around an axis while the needle is advanced around an object to be sutured. A guide track is configured to be positioned around the object and to guide the suturing mechanism in an articulated path around the object. The guide track defines at least one guide channel configured to receive the guide member, where the at least one guide channel is configured to direct movement of the guide member to cause the suturing mechanism to pivot to realign the axis to be tangential to the curved guide track.

Disclosed embodiments include apparatuses, systems, and methods for driving a needle to facilitate suturing, such as may be performed in a surgical anastomosis procedure. In an illustrative embodiment, an apparatus includes a frame configured to counter-rotatably support two generally parallel rollers. A first roller supported by the frame has a flat surface configured to rollably engage a first face of a shaft of a helically-shaped needle. A second roller supported by the frame has a grooved surface defining a groove that is configured to at least partially receive a second face of the shaft. The bottom of the groove has a bottom width at least as wide as the second face and bounded by sides extending to a groove opening at the grooved surface having a surface width that is wider than the second face.

Disclosed embodiments include apparatuses, systems, and methods for guiding a needle to facilitate suturing, such as in surgical anastomosis. In an illustrative embodiment, an apparatus includes a frame configured to counter-rotatably support two generally parallel rollers. A first roller supported by the frame has a flat surface configured to rollably engage a first face of a shaft of a helically-shaped needle. A second roller supported by the frame has a grooved surface defining a helical groove is configured to at least partially receive a second face of the shaft. The second roller further defines a correcting recess bounded by lateral surfaces at a forward end of the groove that tapers to a width of the groove at the forward end. When the leading end is received into the correcting recess, at least one of the lateral surfaces engages and guides the leading end into the forward end of the groove.

A z-shaped surgical device including a handle and a rod secured to the handle having: a first elongate segment at a proximal end thereof; a second elongate segment angled with respect to the first segment; and a third elongate segment angled with respect to the second segment. In the illustrative application, the invention provides an arthroscopic meniscus tissue repair suture passer device that penetrates tissue with its distal tip in one direction and utilizes a needle or similar part to penetrate tissue in the opposite direction placing a suture around the torn tissue. The device has an extended z-shaped shape distally that facilitates placement of a suture around torn meniscus tissue with a novel single stroke relative to the prior art. The z-shaped angles are extended for improved access, maneuverability and passage of the device to and through tissue including but not limited to meniscus and other tissue, around meniscus and other tissue, into open and tight spaces between joints and other bodily spaces, and in difficult to access spaces in joints and other compartments.

A system including a bone punch tool and a needle guide. The bone punch tool can include a support arm having a support arm proximal portion and a support arm distal portion, a pivot arm having a pivot arm proximal portion and a pivot arm distal portion, and an arcuate punch configured to punch through bone. The pivot arm distal portion can be pivotably coupled to the support arm distal portion, such that the pivot arm proximal portion is configured to be moved away from the support arm proximal portion to extend the arcuate punch into a punch position to punch an arcuate hole through bone. The needle guide can be configured to guide a needle through the arcuate hole.

A tendo calcaneus suturing instrument, comprising: a first support and a second support that are of a U-shaped structure, a distance adjustment device, a first guide sleeve, a second guide sleeve, a first positioning tube, a second positioning tube and a tendo sheath cutter. An outer arm and an inner arm of the first support, and an outer arm and an inner arm of the second support are respectively provided with a first positioning hole, a first guide hole, a second positioning hole and a second guide hole; and the first guide sleeve/the second guide sleeve is fixed by means of the first positioning hole/the second positioning hole and is matched with the first guide hole/the second guide hole. The first positioning tube/the second positioning tube provided with a through hole is arranged in the first guide sleeve/the second positioning sleeve or the tendo sheath cutter is arranged in the first guide sleeve and/or the second guide sleeve in a matching manner. The tendo calcaneus suturing instrument can simplify the surgical procedure, improve the surgical effect and relieve pains of a patient.

A jaw closure transmission system is presented comprising an input sub-system, output sub-system and a transmission sub-system.