Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.

Abstract: A blackened surgical needle made by the method of treating blackened surgical needles, comprising the steps of: a. determining that a blackening process may have produced loose black oxide particles on the blackened surgical needle; b. placing at least one blackened surgical needle having loose black oxide particles on its surface into a bath, wherein the bath comprises: i. an effective amount of citric acid to remove loose black oxide particles from the at least one blackened surgical needle; and ii. a source of ultrasound; and c. applying the ultrasound in the bath for a time sufficient to remove loose black oxide particles from the surface of the at least one needle and wherein the contents of the bath are maintained at a pH below 3.25.

Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.

Abstract: An elastic suture needle for passing through a smaller cannula used in minimally invasive surgery includes an elongated body having a proximal end, a distal end, a length extending from the proximal end to the distal end, a top surface extending along the length of the elongated body, and a bottom surface extending along the length of the elongated body. The elongated body has dimensions that are calculated using the equation T/LN < (2*?)/(?E), where T is the thickness of the elongated body, LN is the length of the neutral axis of the elongated body, ? is the yield strength of the elongated body, and E is the Young’s modulus of the elongated body. The elongated body is made of stainless steels such as martensitic stainless steels, austenitic stainless steels, martensitic-aged (mar-aged) stainless steels, and stainless steels sold under the registered trademark ETHALLOY® Needle Alloy.

Abstract: An elastic suture needle for passing through a smaller cannula used in minimally invasive surgery includes an elongated body having a proximal end, a distal end, a length extending from the proximal end to the distal end, a top surface extending along the length of the elongated body, and a bottom surface extending along the length of the elongated body. The elongated body has dimensions that are calculated using the equation T/LN<(4*?)/(?E), where T is the thickness of the elongated body, LN is the length of the neutral axis of the elongated body, ? is the yield strength of the elongated body, and E is the Young's modulus of the elongated body. The elongated body is made of stainless steels such as martensitic stainless steels, austenitic stainless steels, martensitic-aged (mar-aged) stainless steels, and stainless steels sold under the registered trademark ETHALLOY® Needle Alloy.

Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.

Abstract: A novel method of blackening surgical needles is disclosed. Surgical needles having outer surfaces are first placed into a first pretreatment bath having a novel composition. The needles are then placed into a second blackening bath having a novel composition for a sufficient period of time to effectively blacken the surfaces of the needles. The novel methods for blackening the surfaces of a stainless steel alloy surgical needle provide a chromium (VI)-free alternative to current needle manufacturing processes. Another unique feature of this novel method is its short processing time. The blackening processes of the present invention can be utilized for in-line treatment processes which can be easily incorporated into high speed needle manufacturing processes, such as strip mounted processes. In addition, the processes of the present invention are readily adaptable to batch processes. Also disclosed are novel systems for blackening surgical needles and novel blackening baths for surgical needles.

Abstract: A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. The curved proximal section is hollow and includes an elongated conduit extending from a proximal end to a distal end thereof. The curved distal section includes a needle point at a distal end thereof and a hollow post projecting proximally from a proximal end thereof. A suture thread passes through the elongated conduit of the curved proximal section and has a distal end that passes through the hollow post of the curved distal section for being secured to the proximal end of the curved distal section.

Abstract: A system for aligning a needle driver with a tip of a suture needle includes a suture needle package having a base, a needle driver alignment guide, and at least one connector for securing the suture needle. The needle driver alignment guide has first and second lateral guide walls that oppose one another for defining a needle driver guide channel. An end wall interconnects the first and second lateral guide walls for defining a distal end of the needle driver alignment guide. The at least one connector secures the suture needle over the base and controls the orientation of the suture needle so that a tip of the suture needle is located within the suture needle guide channel and is bounded by the end wall and the first and second lateral guide walls. A needle driver has a clamping assembly at a distal end that engages the end wall of the needle driver alignment guide for aligning the clamping assembly with the tip of the suture needle.

Abstract: A non-hazardous cleaning solution/process has been developed to remove oxide residues from the surface of blackened needles. Low concentrations of citric acid solution are mixed with blackened needles and treated in an ultrasonic tank for short period of time (<5 minutes). The oxide residues are substantially removed. Quite surprisingly and unexpectedly, the penetration performance of the cleaned needles are greatly improved by up to 50% over other tested cleaning solutions.

Abstract: A needle and suture assembly includes a needle made of a superelastic alloy, such as Nitinol, including an elongated body having a proximal end and a distal end with a sharpened tip, a suture having a free end juxtaposed with the proximal end of the elongated body of the needle, and a connector disposed between the needle and the suture. The connector includes a first end attached to the proximal end of the elongated body of the needle and a second end attached to the free end of the suture. The connector is made of a material, such as stainless steel, having less elasticity and greater plasticity than the superelastic alloy of the needle.

Abstract: A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. A joint interconnects a distal end of the curved proximal section and a proximal end of the curved distal section. The joint enables the curved proximal section and the curved distal section to rotate relative to one another between a first configuration having a higher profile and a second configuration having a lower profile. Each of the curved proximal and distal sections of the elongated body defines about one-quarter of a circle. The elongated body has a semi-circular shape when in the first configuration and a wave shape when in the second configuration. The elongated body is rotated into the smaller profile for passing through a cannula and, after passing through the cannula, rotated back into the higher profile for use as a suturing needle.

Abstract: A needle sheath includes a tubular shaft having a chamfered edge at a distal end thereof. A stop flange is secured to a proximal end of the tubular shaft. A needle relief slot is formed in a bottom side of the tubular shaft. The needle relief slot has a length that extends along an axis that is parallel to the longitudinal axis of the tubular shaft. A needle point slot formed in a top side of the tubular shaft. The needle point slot has a length that extends along an axis that is perpendicular to both the longitudinal axis of the tubular shaft and the needle relief slot axis. A suture needle is disposed within the tubular shaft of the needle sheath. The suture needle has a curved body that passes through the needle relief slot and a needle point captured within the needle point slot.

Abstract: A system for aligning a needle driver with a tip of a suture needle includes a suture needle package having a base, a needle driver alignment guide, and at least one connector for securing the suture needle. The needle driver alignment guide has first and second lateral guide walls that oppose one another for defining a needle driver guide channel. An end wall interconnects the first and second lateral guide walls for defining a distal end of the needle driver alignment guide. The at least one connector secures the suture needle over the base and controls the orientation of the suture needle so that a tip of the suture needle is located within the suture needle guide channel and is bounded by the end wall and the first and second lateral guide walls. A needle driver has a clamping assembly at a distal end that engages the end wall of the needle driver alignment guide for aligning the clamping assembly with the tip of the suture needle.

Abstract: A non-hazardous cleaning solution/process has been developed to remove oxide residues from the surface of blackened needles. Low concentrations of citric acid solution are mixed with blackened needles and treated in an ultrasonic tank for short period of time (<5 minutes). The oxide residues are substantially removed.

Abstract: A surgical method includes arranging a plurality of suture needle containers in a surgical environment, whereby at least one of the suture needle containers includes a receptacle having a proximal end with an opening and a distal end that is closed by an end wall, a suture needle disposed within the receptacle, and a cover sealing the opening at the proximal end of the receptacle for maintaining a sterile environment for the suture needle inside the receptacle. The method includes causing a controller of a surgical robotic system to transmit input instructions to an electromechanical tool for breaching the cover for providing access to the suture needle disposed within the receptacle. After breaching the cover, a distal end of a surgical tool secures the suture needle for removing the secured suture needle from the opening at the proximal end of the receptacle.

Abstract: A suture needle container includes a receptacle having a proximal end with an opening and a closed distal end. A hollow mandrel is disposed inside the receptacle. The mandrel projects from the closed distal end toward the opening at the proximal end of the receptacle. The mandrel includes a tubular wall having a proximal end aligned with the proximal end of the receptacle and a distal end connected with the closed distal end of the receptacle. An elongated slot is formed in the tubular wall. A suture needle is disposed within the elongated slot. A suture is secured to the proximal end of the suture needle and wrapped around the hollow mandrel. A cover closes the opening at the proximal end of the receptacle for sealing the suture needle and the suture inside the receptacle for maintaining a sterile environment inside the receptacle.

Abstract: Combination cellulose materials and methods of making and using these materials. The combination material includes a first cellulosic material and a second cellulosic material.