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5957902 Surgical tool for enlarging puncture opening made by trocar  
A surgical tool of the type used with a trocar expands the diameter of a puncture opening made in a body cavity so that a linear incision is not needed in certain surgical procedures. An elongate...
5957947 Single use trocar assembly  
The trocar assembly of the present invention includes a tubular body portion, a sleeve, a unidirectional sealing means included within the sleeve and a funnel portion mounted around the sleeve. A...
5954738 Blood sampling device with lancet damping system  
A blood sampling device is provided with a housing, a lancet assembly, a lancet holder disposed in the housing for supporting the lancet assembly, the lancet holder being movable in a lancing...
5947930 Trocar having protector with sinusoidal member  
A surgical trocar has a cannula assembly including a sleeve having a proximal end, a distal end and a passageway therethrough. A housing having an opening is located at the proximal end of the...
5938671 Recanalization apparatus and devices for use therein and method  
Recanalization apparatus for use in crossing a stenosis forming a total occlusion in a vessel formed by a vessel wall, the stenosis having a distal end cap which is convex facing in a proximal...
5935119 Perfusion structure  
The present disclosure is directed to a perfusion stent and method for implanting the same in a TMR channel for perfusing blood to ischemic areas of the head. The stent includes a head and a stem...
5935141 Interventional cardiology instrument controlled from an intracoronary reference  
A surgical instrument includes a proximal actuation handle and a flexible guiding catheter having a channeling lumen, a suction lumen, and a control lumen. The guiding catheter has a slit opening...
5916198 Non-binding surgical valve  
A surgical valve prevents loss of insufflation gas (or the like) when no instrument traverses the valve lumen. The valve is suitable for passing surgical implements distally, and for passing...
5916232 Asymmetrical obturator  
An asymmetrical obturator adapted to be coupled with a trocar and to provide the trocar with characteristics for penetrating tissue forming a body wall. The obturator includes an elongate shaft...
5913869 Universal cartridge  
The universal cartridge provides sterile conditions by which ears may be pierced by a variety of different stud gun types and models thereby decreasing the inventory which a merchant must maintain....
5906629 Arthroscopic surgical apparatus  
An arthroscopic surgical apparatus for a minimum invasive surgery of the joint is provided. The apparatus includes: (a) a shaft member for insertion into a patient's body, the shaft member...
5906595 Trocar having protector with flexible end and improved seal assembly  
A surgical trocar has a cannula assembly including a sleeve having a proximal end, a distal end and a passageway therethrough. A housing having an opening is located at the proximal end of the...
5904699 Trocar for penetration and skin incision  
A trocar which has an obturator assembly for establishment of a surgical port for endoscopic or arthroscopic surgery is disclosed. The obturator includes a flat cutting blade, a shield that moves...
5901424 Trocar button  
There is provided a trocar button having an enlarged flat head at the larger exterior end connecting with a conical body and a pointed bulbous end. The large part of the conical body connects with...
5895403 Surgical cutting tool  
A surgical cutting tool having a "stepped" or "funneled" axial passageway for the evacuation of tissue plugs. The tool is made of a length of cylindrical surgical steel having an axial bore...
5895404 Apparatus and methods for percutaneously forming a passageway between adjacent vessels or portions of a vessel  
Apparatus and methods for percutaneously forming a passageway between adjacent vessels, a vessel and an organ, or different regions of an organ are provided comprising first and second catheters...
5893865 Apparatus and method for improved aortic incision  
An aortic knife which provides multi-sided incisions within an aorta for effectuating improved aortotomies. The aortic knife includes a handle and multiple blades radiating from the handle. The...
5887594 Methods and devices for gastroesophageal reflux reduction  
Methods for reducing gastroesophageal reflux are provided. One method includes passing a piercing device into the esophagus of a patient. The piercing device includes an elongated portion, a...
5879368 Gas-tight seal for surgical trocars  
A gas-tight seal module is incorporated in a trocar system to form a gas-tight seal about an instrument inserted into the cannula of the trocar system. The module incorporates an apertured disc....
5873888 Surgical instrument for the transplantation of self-grown hair  
A hair transplant mechanism in which a cartridge holding numerous hair micrografts feeds a plunger mechanism. The plunger mechanism presses individual hair micrografts through a barrel to be...
5871494 Reproducible lancing for sampling blood  
A blood analysis apparatus for obtaining blood for analysis from the skin of a patient with a controlled degree of lancing. The apparatus including a cartridge and a driver. The cartridge includes...
5868684 Device for hard tissue biopsy sampling  
The invention relates to a hard tissue biopsy sampling device, e.g. for bone in humans or animals, comprising a tube shaped casing or sleeve with a distal end provided with a cutting edge and a...
5868773 Shielded trocar with safety locking mechanism  
A trocar is formed from a cannula and an interfitting obturator for penetrating body cavity walls in laparoscopic and endoscopic surgery. The obturator is provided with an improved piercing tip...
5860996 Optical trocar  
A blade actuating assembly is provided which permits selective reciprocal movement of a tissue cutting blade positioned at a distal end of an optical trocar assembly from a non-deployed position to...
5851216 Trocar  
A trocar for placement in the lumen of a cannula to facilitate insertion of the cannula through the wall of a body cavity is described. The trocar comprises a handle, an obturator having a proximal...
5846250 Surgical tool  
An amniotic membrane perforator tool having a tip portion, a shaft portion, a flexing portion, and a handle portion. The shaft portion is adjacent the tip portion and is preferably of a generally...
5843115 Trocar insertion device  
A trocar insertion device to facilitate the introduction of a conventional trocar into a patient, the insertion device including a generally elongate insertion arm that has a tubular configuration...
5843039 Surgical treatment  
The invention concerns a surgical instrument whose distal end region is to be introduced or inserted by a puncture into a cavity of a patient's body. The surgical instrument has an outer trocar...
5843108 Over the wire scapel  
An over the wire scalpel for performing a dermatotomy that produces a skin nick features a triangular shaped blade with a pair of cutting edges that meet to define a tip. The blade is connected to...
5827315 Safety penetrating instrument with penetrating member protected after penetration to predetermined depth  
A safety penetrating instrument for penetrating an anatomical cavity wall to gain access to an anatomical cavity includes a cannula having a distal end for introduction in the anatomical cavity, a...
5827317 Body piercing holder  
A member for holding a body piercing pin within a body piercing instrument, the pin having a head and shaft, the body piercing instrument comprising a U-shaped body portion having first and second...
5827199 Biopsy punch apparatus  
A biopsy punch apparatus includes a hollow handle that has an open handle top and an open handle bottom. A ring-like finger rest is attached to the hollow handle such that the finger rest projects...
5827319 Radially expandable access system having disposable and reusable components  
An access system comprises a radially expandable sleeve, a pneumoperitoneum needle, a cannula assembly, and an obturator. Methods for reconstructing and reusing the access system comprise replacing...
5827316 Rotating aortic punch  
Disclosed is a novel aortic punch having a cutter on the end of a hollow body member. The hollow body member is slidable along a non-rotating shaft. On the end of the shaft is an anvil, and helical...
5824002 Trocar-cannula device  
A trocar device, comprising a trocar cutting element, a surrounding insulating sheath, and a cannula surrounding the sheath, also includes an arrangement providing a substantially smooth transition...
5823947 Method of creating an operating space endoscopically at an obstructed site  
An expandable multifunctional instrument for creating a space at an obstructed site in the body includes an elongate member having a distal end for being introduced in the body, a proximal end for...
5817120 Hair implanting instrument  
An instrument for implanting hair grafts into a patient's scalp includes an elongate housing adapted to be manipulated by a surgeon during implanting of the hair grafts. The elongate housing has a...
5814058 Method and apparatus employing conformable sleeve for providing percutaneous access  
Methods and systems for introducing articles and surgical instruments to target body cavities utilize conformable sleeves which are percutaneously positioned within the cavity. Articles may then be...
5810863 Trocar including an obturator with a removable knife  
An obturator for a trocar having a shaft, pin, and removable knife. The pin mounts to the shaft and secures the knife thereto.
5807402 Safety penetrating instrument with protective sheath, triggered penetrating member retraction and single and safety member protrusion  
A safety penetrating instrument for establishing a portal in a wall of an anatomical cavity includes a cannula, a penetrating member disposed in the cannula, a protective sheath disposed between...
5807317 Trocar with concave cutting surface  
An improved trocar is provided. The trocar includes a shaft having a first end and a second end with a bend therebetween. An attachment fixture is integral with the shaft at the first end. A...
5803921 Access port device for use in surgery  
An access port device (40) for use in surgery is provided which comprises a sleeve (41,42) having an exit opening located at a distal end thereof for insertion into an incision made in a patient's...
5803922 Endoscopic wound access, anchoring, and insufflation device and method  
A device for insufflating a body cavity preparatory to and during an intracavity procedure is provided that includes a generally cylindrical body anchorable to skin surrounding an incision into the...
5800451 Trocar system  
A trocar system (10) comprises a trocar tube (11), a trocar plunger (12) and a valve housing (13) formed on the end of the trocar tube (11) facing away from the patient. The trocar tube (11) is...
5797943 Shielded trocar and trocar shield  
A trocar is formed from a cannula and an interfitting obturator for penetrating body cavity walls in laparoscopic and endoscopic surgery. The obturator is provided with an improved piercing tip...
5797920 Catheter apparatus and method using a shape-memory alloy cuff for creating a bypass graft in-vivo  
The present invention provides a catheter apparatus, an introducer system, and a methodology for creating a bypass on-demand between an unobstructed blood vessel such as the aorta and an obstructed...
5797944 Visualization trocar  
A trocar having an elongated shaft, and a puncturing head attached to a distal end of the shaft. The puncturing head can have three blades with sharpened cutting edges embedded in the puncturing...
5792168 Apparatus for treating varicose veins  
The surgical apparatus comprises a needle extending from an end of an elongated shaft and having a sharpened tip. A cylindrical sleeve is concentrically disposed around the shaft and is adapted to...
5782851 Hair transplantation system  
A system for transplanting hair grafts from a donor region of a patient's scalp to a recipient region of the patient's scalp. The system includes harvesting N (N≥1) strips of skin containing...
5779697 Arthroscopic cannula with fluid seals  
An elongated arthroscopic cannula having proximal and distal elastomeric sealing means through which elongated surgical instruments may be inserted. The cannula seals maintain their effectiveness...