70 results about "Micrographic surgery" patented technology

An ophthalmic surgical cassette for removably receiving in a cassette receiving mechanism of an ophthalmic surgical system. The system includes first and second plunger valves. The cassette includes a body having a rear surface, an irrigation inlet for receiving irrigation fluid from a source, a first irrigation outlet for providing irrigation fluid to a first ophthalmic microsurgical instrument for use in an anterior segment ophthalmic surgical procedure, a first manifold fluidly coupling the irrigation inlet with the first irrigation outlet, a second irrigation outlet for providing irrigation fluid to a second ophthalmic microsurgical instrument for use in a posterior segment ophthalmic surgical procedure, and a second manifold fluidly coupling the irrigation inlet with the second irrigation outlet. The surgical cassette greatly simplifies a combined anterior segment and posterior segment ophthalmic surgical procedure by eliminating the need for separate anterior segment and posterior segment cassettes for the combined procedure.

The invention provides minimally invasive microsurgical tools and methods to form an aqueous humor shunt or bypass for the treatment of glaucoma. The invention enables surgical creation of a tissue tract (7) within the tissues of the eye to directly connect a source of aqueous humor such as the anterior chamber (1), to an ocular vein (4). The tissue tract (7) from the vein (4) may be connected to any source of aqueous humor, including the anterior chamber (1), an aqueous collector channel, Schlemm's canal (2), or a drainage bleb. Since the aqueous humor passes directly into the venous system, the normal drainage process for aqueous humor is restored. Furthermore, the invention discloses devices and materials that can be implanted in the tissue tract to maintain the tissue space and fluid flow.

A kit management system for use in microsurgery is disclosed. The kit management system includes a plurality of tubing, surgical instruments, connectors, an instrument tray, a connector tray, and a tubing organizer. A tubing organizer for removably receiving and holding a plurality of tubing in a spaced relationship during microsurgery is also disclosed.

A microsurgical balloon, with at least one incising component mounted to the surface of the balloon, includes a protective pad to prevent the outer surface of the incising component from coming into contact with and damaging the balloon surface. In particular, the protective pad is positioned on the outer surface of the balloon substantially parallel to and juxtaposed with the incising component. When the balloon is in a deflated configuration, either for insertion into the vasculature system or removal from the patient, the protective pad engages the outer surface of the incising component thereby protecting the balloon from being punctured or damaged by the incising component. The protective pad may be bonded to the outer surface of the balloon, or it may be an integral part of a homogeneous balloon structure.

A microsurgical probe tip and method of using same are disclosed. One embodiment of the microsurgical probe tip comprises: an outer cutting member, comprising a first tube having a wall, a closed end and a port formed in the wall near the closed end; an inner cutting member, comprising a second tube coaxial with and operable to move in a reciprocating motion within the first tube and having a first end operable to be coupled to a driving mechanism and a second end with a cutting edge for cutting tissue; a first alignment mark on the outer cutting member at a first predetermined position adjacent to the port; and a second alignment mark on the inner cutting member at a second predetermined position adjacent to the cutting edge of the inner cutting member, wherein the second alignment mark is visible through the port and operable to be aligned with the first alignment mark such that when the first and second alignment marks are aligned, a preferred relative positioning between the inner and outer cutting members is achieved. The microsurgical probe tip can further comprise one or more radial alignment marks on the inner cutting member, wherein the radial alignment marks are parallel to one another at fixed intervals from one another and positioned so that one or more of the radial alignment marks are visible through the port so as to indicate the relative lateral positioning between the inner cutting member and the outer cutting member. The radial alignment marks can be made by a method, or combination of methods, such as laser cutting, inkjet printing, and mechanical scribing. The driving mechanism can be a pneumatic driving mechanism, an electro-mechanical driving mechanism, and / or a magnetic driving mechanism. The microsurgical probe tip can further comprising a plurality of gauge marks on an outer surface of the outer cutting member, wherein the gauge marks are parallel to one another at a fixed interval (e.g., 1 millimeter) from one another and positioned so that the gauge marks can be used as a measuring tool in a surgical environment

A retractor is provided for performing spinal surgery with a minimal approach, and which spares the lumbar muscles from surgical disruption. A preferred embodiment includes a blade having first and second faces wherein the faces are positioned substantially transverse to one another, and wherein at least one of the faces has a tapered width. Alternatively, both the first and second faces are tapered. Additionally, a third face positioned transverse to the first face and substantially parallel to the third face may be incorporated into the retractor. The second face also preferably includes at least one tooth, and more preferably, a plurality of teeth at its distal end for laterally engaging an articular process of a vertebra of the spine.

A microsurgical laser probe is provided with a distal end portion of an optic fiber that projects from a tubular sleeve of the probe and can be caused to bend relative to the probe sleeve by manual manipulation of a mechanism on a handle of the probe.

A microsurgical instrument handle may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and a handle base having a handle base proximal end and a handle base distal end. Each actuation arm of the plurality of actuation arms may include an extension joint. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A decompression the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end.

The present invention relates to methods and apparatus for self-sharpening micro surgical blades, knives and assemblies.

A microsurgical system capable of priming its aspiration circuit using a pressurized gas source, a pressurized infusion fluid source, an aspiration chamber fluidly coupled to the pressurized gas source and the pressurized infusion fluid source, and a computer.

A cannula having a body, a sealing disc, and a cap. The sealing disc is located within the body and is compressed by the cap. An angled cut in the sealing disc allows microsurgical instruments to be inserted through the cannula into the eye. Upon removal, the cut in the sealing disc closes, preventing the loss of intraocular pressure.

A microsurgical system capable of clearing an occlusion via hydraulic resonance in its aspiration circuit.

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

The present invention, the screw-device, is a mechanical device for anastomosing hollow tube-like structures in the human body, such as blood vessels, bowels and ureters. It is thus not restricted to (micro-)vessels. It can be used in every surgical operation dealing with anastomosis and bypass operations. It allows anastomosing end to side or side to side. The screw-device is very easy to apply onto the vessel wall. Screwing is a fast technique saving operating time and requiring only basic microsurgical skills. The manufacturing is easy. Another advantage is that the screw-device can be mounted onto the receptor vessel without first opening and / or occluding this vessel. Later on, the receptor vessel wall can be opened with laser or scalpel. It should be understood that the foregoing is illustrative and not limiting, and that modifications may be made by those skilled in the art, without departing from the scope of the invention.

The present invention relates to a microsurgical device and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a dual-blade device for cutting the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal via its size (i.e., for example, 0.3-0.2 mm width) and configuration where the blade tip curves up providing a ramp-like action for cutting the TM. The dimensions and configuration of the blade is such that an entire strip of TM is removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.

A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction.

Surgically assisted equipment includes a base, an RCM mechanism, a driving mechanism and an end effector. The base is movably provided with a rotary shaft, and the RCM mechanism comprises a front supporting rod, a rear supporting rod and an upper horizontal cross rod; the lower end of the front supporting rod is rotatably connected with the front end of the rotary shaft through a hinge pin, the upper end of the front supporting rod is rotatably connected with the upper horizontal cross rod through a hinge pin, the lower end of the rear supporting rod is rotatably connected with the rotary shaft through a hinge pin, the upper end of the rear supporting rod is rotatably connected with the upper horizontal cross rod through a hinge pin, the rear end of the rotary shaft is provided with a manual operating handle, the upper end of the manual operating handle extends upward and is rotatably connected with the upper horizontal cross rod, the driving mechanism is rotatably connected with the upper horizontal cross rod through a hinge pin, the end effector is installed on the driving mechanism, and the driving mechanism drives the end effector to rotate and move in the axis direction of the end effector. The surgically assisted equipment is mainly used for microsurgery and minimally invasive surgery, rigidity is good, operation is simple, the cost is low, and the success rate of the surgery is significantly improved.

Surgical gripping forceps are provided with one or two gripping jaws movable relative to a main body, wherein each moveable one of the gripping jaws has a pivot pin, fixed in position relative to the main body, and a lever arm. The lever arms are articulated via at least one push element. For this purpose each movable one of the gripping jaws has its own pivot pin. From the midline of the main body, the individual pivot pin has at least a distance greater than 38% of the maximum width of the main body or maximum diameter of the main body. The microsurgical gripping forceps operate with customary force for actuating the forceps, and permit a substantial applied clamping force.

The present disclosure relates to high dexterity manipulation systems for microsurgical procedures. The surgical system includes a master apparatus controllably coupled to a slave apparatus configured to couple to a patient's head with a dual tripod structure having two pluralities of linear actuator links pivotally supporting a surgical tool shaft. The motions of the linear actuator links are controlled to provide at least 6 degrees of freedom for the surgical tool shaft. The slave apparatus may further include a redundant axis rotatable tool shaft, thus enabling 7 degrees of freedom for a surgical tool. The surgical system includes sensors enabling forces of interaction between the slave apparatus and its environment to be reflected back to the master apparatus. Forces imparted onto the master apparatus by an operator can be fed forward to control the slave apparatus and scaled down to reduce the forces on target tissues.

The invention belongs to the technical field of biological materials and nerve injury repairing, and particularly relates to a decellularized epineurium catheter and a preparation method thereof as well as application to repairing of a peripheral nerve injury. The biological characteristic of the decellularized epineurium catheter for a pig is researched from such aspects as the porosity, the swelling rate, the in vitro degradation rate and the cytotoxicity test, and the immunogenicity of the catheter is also researched. According to the decellularized epineurium catheter and the preparation method thereof, a rat sciatic nerve transversal injury model is built; after being subjected to microsurgical suturing, a nerve stump line is covered with the decellularized epineurium catheter so as to research the effects of promoting regeneration of nerves, preventing nerve adhesion and formation of nerve tumors. The invention provides the decellularized epineurium catheter which can effectively reduce surrounding nerve adhesion and reduce the occurrence rate of the nerve tumors, and a novel repairing material is provided for repairing of war traumatic surrounding nerve injuries and treatment of causalgia caused by the nerve injuries.

The invention discloses a hand-held anti-trembling surgical robot for microsurgery use, belongs to the technical field of surgical robots, and solves the problem of injury caused by physiological tremors of a hand of a surgeon during a microsurgery. The hand-held anti-trembling surgical robot for the microsurgery use comprises a surgical tool, an adapter, a movable platform, six drive units, a hand-held base, a light emitting element and the like. The hand-held anti-trembling surgical robot for the microsurgery use utilizes advantages of compact structure, high stiffness, quick dynamic response and the like of a parallel platform, and combines an optical sensor, a position sensor and a filter so that fast and effective reverse motion compensation can be realized for a surgical instrument tip so as to filter involuntary trembling of the hand of the surgeon, thereby maintaining the surgical instrument within a planned surgical path or range so as to reduce unnecessary errors to reduce difficulty of operation the surgeon; and thus, surgical accuracy is improved for an eye surgery. The hand-held anti-trembling surgical robot for the microsurgery use has the characteristics of being high in precision, light in mass, easy to operate, and good in anti- trembling effects; and thus, the hand-held anti-trembling surgical robot for the microsurgery use is capable of relieving operation pressure of surgeons, as well as effectively improving surgical effects.

A medical apparatus for widening a stenosis or for deploying a stent in a patient. The apparatus has a central axis and an inflatable outer dumbbell-shaped balloon. The apparatus is insertable into a lumen of a patient for movement of the balloon therein between a deflated configuration and an inflated configuration. The balloon stays in position over the stenosis or the area in need of the stent when it is inflated. The apparatus can include a flexible support member mounted on the external surface of the balloon with at least one microsurgical blade, which forms an effective cutting edge upon inflation of the outer balloon. The apparatus can also include one or more inner balloons that allow higher dilation pressures to be generated from inside the outer balloon. The apparatus can also include a hollow central core that may permit ventilation of the airway during the dilation process.

The invention discloses a blood vessel and lymphatic vessel anastomosis sleeve device for microsurgery, and belongs to the technical field of microsurgery. The blood vessel and lymphatic vessel anastomosis sleeve device comprises a pipeline a, wherein one end of the pipeline a is connected with a pipeline b through a connecting part; two annular convex parts are integrally arranged on the outer side wall of the pipeline b, and the annular convex parts are used for fixing a blood vessel or a lymphatic vessel; and the outer diameter of the pipeline a is larger than that of the pipeline b, and the inner diameter of the pipeline a is larger than that of the pipeline b. According to the sleeve device, the sleeve device can be used for quickly and efficiently anastomosing blood vessels and lymphatic vessels with calibers of 0.4 mm to 1 mm, two broken-end blood vessels are in well involution (intima-to-intima), the device is not in contact with the inner wall of a lumen and blood flow in thelumen, the patency rate after anastomosis is high, the leakage rate is low, and the occurrence rate of postoperative vascular crisis is low. The device not only can be suitable for blood vessels withthe diameter smaller than 1 mm, but also can be suitable for anastomosis of blood vessels with the diameter larger than 1 mm, fills the application blank of other cannulas, and meanwhile has high universality.

A microsurgical bipolar forceps may include an actuation structure, a hypodermic tube, a first electrical conductor, and a second electrical conductor. The actuation structure may include an actuation structure distal end, an actuation structure proximal end, and a plurality of actuation limbs. The hypodermic tube may be disposed in the actuation structure. The first electrical conductor may be disposed in the hypodermic tube and the actuation structure wherein the first electrical conductor is electrically connected to a bipolar cord. The second electrical conductor may be disposed in the hypodermic tube and the actuation structure wherein the second electrical conductor is electrically connected to the bipolar cord. A compression of the actuation structure may be configured to decrease a distance between a first jaw of the first electrical conductor and a second jaw of the second electrical conductor.