178 results about "Needle knife" patented technology

Methods and apparatus for maintaining sterility during transluminal procedures are described. The sterility is achieved by making use of a membrane in either the form, e.g., of a sheath, cap or umbrella to keep the instruments (endoscopes, overtubes, etc.) sterile while being advanced through lumens in the body and into the various cavities. Methods, such as vacuum acquisition, mechanical tissue anchoring, etc., of the underlying tissue followed by incision of the tissue with, e.g., a needle knife, can be utilized to gain access to the various cavities. It is expected that this procedure will provide the desired level of sterility for transluminal procedures.

The present invention provides apparatus and methods for performing endoscopic mucosal resection and endoscopic submucosal dissection of tissue. In a first embodiment, a hood member having a hood portion and a lever portion is provided. The hood portion is adapted to be disposed over a distal region of an endoscope. A portion of the lever portion is configured to be inserted beneath a section of mucosal tissue having a lesion, and the lever portion is configured to be rotated or otherwise maneuvered to lift the mucosal tissue in an upward direction, thereby facilitating removal of the tissue comprising the lesion. Optionally, a surgeon may advance a needle knife through the endoscope and lever portion to further incise submucosal tissue while the lever portion is disposed beneath the lesion. If desired, a flushing fluid may be provided to a target site during the procedure.

The present invention relates to methodology of and apparatus for accurately positioning devices for performing endoscopic cannulation, papillotomy and sphincterotomy and similar procedures. The sphincterotome with a steerable or adjustable distal segment of the present invention allows the physician to control the position of the distal tip of the device independently of the endoscope and adjust for inconsistencies in the device and the anatomy. According to one embodiment of the present invention, a threaded portion of a cable assembly cooperates with a torque transmission element and a cog to enable the operator to rotate a cutting wire into a desired position relative to the catheter. Alternate embodiments allow the operator to fix the depth of a needle knife while allowing, if desired, accurate rotational positioning of the associated catheter. Threaded stabilizing elements, pivot elements and a steering wire may be used together or individually to accomplish these features. Presently available products that may be modified according to the present invention include, but are not limited to, Boston Scientific Sphincterotomes and Needle Knives.

According to the present state of the art, endoscopic cannulation of the common bile duct and papillotomy and / or sphincterotomy of the Papilla of Vater and / or the Sphincter of Oddi is accomplished by advancing a sphincterotome (or papillotome or cannulotome) into an endoscope / duodenoscope so that the distal tip of the sphincterotome exits the endoscope adjacent the sphincter muscles at the Papilla of Vater. The endoscope mechanisms are then manipulated to orient the distal tip of the sphincterotome to the desired position for proper cannulation of the duct. Accurate and consistent control of the length of the exposed blade is made difficult due to a number of factors. These factors include: 1) differences in the inside diameters of the outer tube and the needle knife wire, 2) the orientation of the needle knife wire within the outer tube, 3) the mismatch of tolerance of the needle knife wire and the inside diameter of the extrusion, 4) anatomy, and 5) endoscope manipulation. A sphincterotome incorporating the present invention will provide the user with an indication of the exposed blade length and will allow the physician to control the length of the exposed blade. According to one embodiment of the present invention, various visual indications are presented to the user as the needle knife is advanced from its outer sheath. These visual indications, combined with a mechanical method to hold the knife in position during catheter placement allows the user to perform precise incisions. Presently available products that may be modified according to the present invention include, but are not limited to, Boston Scientific Sphincterotomes and Needle Knives.

A methodology of and apparatus for accurately positioning devices for performing endoscopic cannulation, papillotomy and sphincterotomy and similar procedures. The sphincterotome with a steerable or adjustable distal segment of the present invention allows the physician to control the position of the distal tip of the device independently of the endoscope and adjust for inconsistencies in the device and the anatomy. According to one embodiment of the present invention, a threaded portion of a cable assembly cooperates with a torque transmission element and a cog to enable the operator to rotate a cutting wire into a desired position relative to the catheter. Alternate embodiments allow the operator to fix the depth of a needle knife while allowing, if desired, accurate rotational positioning of the associated catheter. Threaded stabilizing elements, pivot elements and a steering wire may be used together or individually to accomplish these features.

The present invention provides apparatus and methods for performing endoscopic mucosal resection and endoscopic submucosal dissection of tissue. In a first embodiment, a catheter having proximal and distal ends and a balloon disposed near the distal end of the catheter is provided. A portion of the distal end of the catheter is configured to be inserted beneath a section of mucosal tissue having a lesion, and the balloon is configured to be inflated to lift the mucosal tissue in an upward direction, thereby facilitating removal of the tissue comprising the lesion. Optionally, a surgeon may advance a needle knife through the catheter to further incise submucosal tissue while the balloon is in the inflated state. If desired, a flushing fluid may be provided to a target site during the procedure.

According to the present state of the art, endoscopic cannulation of the common bile duct and papillotomy and / or sphincterotomy of the Papilla of Vater and / or the Sphincter of Oddi is accomplished by advancing a sphincterotome (or papillotome or cannulotome) into an endoscope / duodenoscope so that the distal tip of the sphincterotome exits the endoscope adjacent the sphincter muscles at the Papilla of Vater. The endoscope mechanisms are then manipulated to orient the distal tip of the sphincterotome to the desired position for proper cannulation of the duct. Accurate and consistent control of the length of the exposed blade is made difficult due to a number of factors. These factors include: 1) differences in the inside diameters of the outer tube and the needle knife wire, 2) the orientation of the needle knife wire within the outer tube, 3) the mismatch of tolerance of the needle knife wire and the inside diameter of the extrusion, 4) anatomy, and 5) endoscope manipulation. A sphincterotome incorporating the present invention will provide the user with an indication of the exposed blade length and will allow the physician to control the length of the exposed blade. According to one embodiment of the present invention, various visual indications are presented to the user as the needle knife is advanced from its outer sheath. These visual indications, combined with a mechanical method to hold the knife in position during catheter placement allows the user to perform precise incisions. Presently available products that may be modified according to the present invention include, but are not limited to, Boston Scientific Sphincterotomes and Needle Knives.

A miniature ingestible capsule has multiple therapeutic or diagnostic operations that can be performed. These functions are controlled by a combination of an outside control, a pose beacon and through information relayed from an imagining array and transmitter. These functions can be in a separate capsule without an imaging array or within the same capsule with an imaging array. Typically, there is one function performed in addition to imaging. These functions can include suction and spray capabilities, ultrasound sensor, lithotripsy, laser, heat, electrocautery, BICAP, biopsy forceps, a needle knife snare cautery (cold and hot with continuous or pulsed current for cutting and coagulation), with a basket, and fine needle aspiration with various wheels and fins and motors controlled externally and other tools to be used in humans. All of these tools can be attached to a retractable arm. Also, they can be used on an elevator device that lifts them, allowing for an extra 180° of movement.

The invention discloses an ultrasonic apparatus and an image capturing method. The image capturing of a needle-knife (11) and needle-knife visualization are realized by sending ultrasonic signals in the direction of the cutting part (111) of the needle-knife (11), converting the ultrasonic return signals into ultrasonic images and outputting the images through a display circuit (14). Further more, the ultrasonic apparatus make the irradiation direction of the ultrasonic beams lean to the motion direction of the cutting part (111) of the needle-knife (11) by measuring the derivation angle of the needle-knife (11) and adjusting the irradiation direction of the irradiated ultrasonic beams. According to the direction, the cutting part (111) of the needle-knife (11) is assured to be in the energy band generated by the ultrasonic wave all the time, thus, the cutting part of the needle-knife always presents in the ultrasonic images, and the needle-knife visualization stability is further improved.

The invention discloses an endoscope component and medical equipment, and belongs to the technical field of medical treatment. The endoscope component comprises a work endoscope tube, an endoscope head, a handle and a light guide optical fiber. The work endoscope tube is provided with a liquid injection channel, an instrument channel and an imaging channel. The medical equipment comprises the endoscope component and a hollow needle-knife, and a liquid leading channel is formed between the inner wall of the hollow needle-knife and the outer wall of the work endoscope tube. The endoscope component comprises a small core optical imaging unit, and the size of the endoscope component is reduced; the liquid leading channel does not need to be arranged in the work endoscope tube, the inner diameter of the work endoscope tube is reduced, the inner diameter of the hollow needle-knife used in cooperation with the endoscope component is reduced, and injuries of a human body are reduced; the hollow needle-knife is used in cooperation with the endoscope component, so that blind operation of a needle-knife operation is changed to be visual operation, and the safety coefficient is improved.

The invention discloses a visual high-strength high-toughness intelligent ceramic needle knife. The needle knife comprises an image processing and displaying module, a power supply, a signal amplifier, an illumination mechanism adjuster, a signal lamp, a data processing module, a handle, a straight knife rod, a signal transmission line, a resistance detection module and a tool bit rod, wherein the resistance detection module is arranged between the straight knife rod and the tool bit rod, and a force sensor is arranged inside the resistance detection module; the signal lamp represents that the cut at the end part of the tool bit rod enters different tissue layers of a human body; the force sensor is used for measuring the resistance for the cut at the end part of the tool bit rod in the process of proceeding in human body tissues; and then, the data processing module is used for processing data and controlling a corresponding signal lamp to be lightened. According to the ceramic needle knife, a waterproof microscope is arranged in the groove inside the tool bit rod, and can be used for imaging the part of the tool bit rod and displaying the image on the image processing and displaying module; and a doctor can control the position of the tool bit rod in real time by observing the image on the image processing and displaying module.

The embodiments of the invention disclose a visual needle knife navigation simulation method and device. The method includes the following steps: acquiring a plurality of images to be processed, and building a 3D model according to the images to be processed; selecting a simulated needle knife corresponding to a target needle knife according to the model of the target needle knife; determining thesimulated navigation result of the simulated needle knife in the 3D model according to preset needle knife navigation requirements; and rendering and displaying the simulated navigation result in a 3D manner. The device includes an image acquisition module, a needle knife selection module, a result determination module and a result display module. According to the embodiments of the invention, the images to be processed are modeled in a 3D manner, and the simulated navigation result of the simulated needle knife in the 3D model is rendered and displayed in a 3D manner in advance according tothe preset needle knife navigation requirements, so that patients can know the position and depth of acupuncture of the needle knife in advance, the effectiveness and safety of treatment with needle knives are improved, and the occurrence of adverse clinical events is avoided.

An arc needle knife is disclosed in the present invention, it comprises a handle connecting with a straight knife rod, the end of the straight knife rod connecting with a knife head rod, the knife head rod arc connecting with the straight knife rod, an arc angle is 5 degree to 90 degree, the end of the knife head rod is knife edge. The needle knife handle designed by the present invention avoids neurovascular injury caused by knife edge line abnormal resulting in the needle knife handle from its design, firstly initiating bone joint bony rigidity closing operation release. The present invention is breakthrough existing needle knife using range, suitable for chronic soft tissue injury, hyperosteogeny and bone joint bony rigidity closing operation release.

The invention relates to a integrated guidewire needle knife device. Devices and methods for translumenal access are also provided. In one embodiment, a device for translumenal access includes an elongate member having proximal and distal ends and a lumen extending therethrough. A tissue-penetrating wire can extend through the lumen, and in use the wire can be selectively movable between a retracted position where the wire is in a constrained configuration within the lumen and an extended position in which a portion of the wire extends a distance beyond a distal end of the elongate member. The portion of wire which extends the distance beyond the distal end of the elongate member can be adapted to assume a non-linear unconstrained configuration to prevent injury to the tissue and / or tissue structures adjacent to the tissue.

The invention relates to an insulating jacket fixed-length stripping device and method for insulated wire processing. The device comprises a base, a length adjusting mechanism arranged on the base andused for controlling the stripping length of an insulating jacket of an insulated wire, a limiting wheel set guide mechanism arranged on the length adjusting mechanism, a rotary driving mechanism arranged on the length adjusting mechanism, a stripping needle knife assembly arranged on the rotary driving mechanism, and a clamping traction mechanism arranged on the base and used for pulling the insulated wire to move. The limiting wheel set guide mechanism is used for horizontally limiting and guiding the insulated wire, and the rotary driving mechanism is used for driving the stripping needleknife assembly to rotate. The device provided by the invention is applicable to a wide range of sizes of insulated wires, can realize fixed-length automatic stripping of an insulating jacket, and is convenient and rapid in stripping.

The invention discloses a needle head part opposite blade grinding device for sterile needle knives. The needle head part opposite blade grinding device for the sterile needle knives is arranged on one side of a rotation station of a rotary feeder clamping the sterile needle knives. The needle head part opposite blade grinding device for the sterile needle knives comprises a rack, a walking bottomframe, a linear sliding rail, a sliding rail base, an upper grinding installation plate, a lower grinding installation plate, an upper grinding air cylinder, a lower grinding air cylinder, an upper grinding clamping plate and a lower grinding clamping plate. The upper grinding clamping plate and the lower grinding clamping plate are matched and gathered to clamp the sterile needle knives arrayedon the rotation station between grinding portions of the two grinding clamping plates. The needle head part opposite blade grinding device for the sterile needle knives is ingenious in design, integrated grinding is carried out on blade parts of the sterile needle knives after the upper grinding clamping plate and the lower grinding clamping plate are gathered, compared with a traditional technology, the machining efficiency is obviously improved, and the grinding quality is guaranteed while the machining quality of following machine is guaranteed.

The invention relates to a seam compensation type drip-infiltrating-irrigation pipe machining method. The seam compensation type drip-infiltrating-irrigation pipe machining method comprises the following machining steps that 1, a composite pipe is machined; and 2, seam pricking is conducted on the wall of the composite pipe through a needle knife seam pricking machine. The invention further relates to a pipe clamp used for the drip-infiltrating-irrigation pipe. The pipe clamp is installed at a prickseam in the wall of the composite pipe and comprises two arc-shaped clamping pieces. Combination walls are arranged on the two sides of each arc-shaped clamping piece. The middle of each arc-shaped clamping piece is provided with a groove. A plurality of first water outlets are formed in the edge of each groove. Each first water outlet is connected with a flow stabilizing channel. The flow stabilizing channels communicate with water flow channels. Compared with the prior art, the seam compensation type drip-infiltrating-irrigation pipe machining method and the pipe clamp used for the drip-infiltrating-irrigation pipe have the characteristics of being resistant to corrosion and ageing, long in service life, free of blockage, uniform in flow, long in using length, savable in labor, effort and power and capable of saving 80% of water and 50% of fertilizer compared with a traditional irrigation method.

The invention discloses a puncture biopsy sleeve needle-knife for cystic-solid mass. The puncture biopsy sleeve needle-knife is composed of two parts, namely a puncture biopsy needle sheath and an inner core sleeve needle-knife, wherein the inner core sleeve needle-knife penetrates through the puncture biopsy needle sheath; the relative positions of the inner core sleeve needle-knife and the puncture biopsy needle sheath are fixed by clamping a needle base buckle with a needle base clamping groove; a tip arc blade of the inner core sleeve needle-knife is tightly attached to the inner wall of a hollow needle rod of the sheath; and when the tip arc blade is jointed with the inner lateral wall of a tip side surface needle hole at the tip of a sheath side surface needle hole, a fodder chopper effect is formed, small tissue blocks which gradually protrude into the top side surface needle hole are cut off, the top side surface needle hole is blocked. According to the puncture biopsy sleeve needle-knife, the liquid between tissues can be absorbed; few solid tissues required by pathological diagnosis can be obtained; on the basis of avoiding the defects of traditional puncture needle aspiration biopsy, the multi-purposes of the needle are realized; and the puncture biopsy sleeve needle-knife is simple and fast, and small in wound, and is hoped to be an ideal diagnostic method for clinical solid mass diseases.

The invention provides a painless anesthetic injection ultrasonic periodontal treatment instrument, comprising a device main body, a disinfection mechanism and a pipeline arrangement mechanism, wherein the device main body comprises a needle knife head, a handle, a conduit cable, a slot cup, an anesthetic barrel and a base, wherein the needle knife head is assembled at the front end of the handle,and the conduit cable is assembled on the rear end face of the handle; the slot cup is assembled at the right side of the upper end face of the base; the anesthetic barrel is installed at the left side of the upper end face of the base; the disinfection mechanism comprises a hollow cavity, an upper cover body, a lower cover body, a semicircular slot I, a hose pipe, a liquid leakage hole, a connecting pipe, a disinfectant chamber, a one-way valve I, a one-way valve II, a pipette, a spring, a piston, a piece of permanent magnet, a circular hole, a piece of electromagnet, a semicircular slot IIand a liquid outlet hole; the pipeline arrangement mechanism comprises a sliding block, a through groove, a round bar, a groove, a sponge ring and a box body. Compared with the prior art, the painlessanesthetic injection ultrasonic periodontal treatment instrument provided by the invention has the beneficial effects that the aims of automatically disinfecting the handle and the needle knife headand arranging the conduit cable are achieved.

The invention relates to a multifunctional muscular fasciae integrated teasing needle knife which comprises a needle tip, a needle body, a needle handle, a knife rod and a knife blade. The knife tip is integrally connected to the front end of the needle body, the rear end of the needle body is connected with one end of the needle handle, the knife blade is integrally connected to the front end of the knife rod, and the rear end of the knife rod is connected with the other end of the needle handle. By the adoption of the teasing needle knife, when channel dredging is carried out on the human body muscular fasciae tissue, a teasing needle can be used for treatment, a teasing knife can be used for teasing channels, the blocked channels are smooth, the treatment effect is improved, a needle tubing can be guided for conveying liquid medicine to an acupuncture and moxibustion position in the treatment process, and the acupuncture and moxibustion treatment effect is further improved. In the acupuncture and moxibustion treatment process, the teasing needle knife can be detached and separated to be independently operated aiming at different positions. The teasing needle knife has the advantages of being simple in structure, accurate in operation, convenient to operate, small in trauma, good in universality, stable in performance and remarkable in treatment effect, and can be suitable for acupuncture with electric stimulation besides normal use, and different use purposes can be met.

The present invention is one kind of knife latch needle for pile cutting and looping circular jacquard knitting machine, and belongs to the field of knitting machine fitting making technology. The knife latch needle consists of a needle body, a needle butt in the lower part, and a needle hook with latch and a needle knife with cutting edge in the upper part, and other parts. The needle knife may be a conic structure with the cutting edge in the conic surface or a trapezoidal or square structure with the cutting edge in the right-angle surface adjacent to the needle latch. The knife latch needle has reasonable structure and the functions of both knitting loop and cutting pile. The present invention makes it possible to form three kinds of textures of higher loop, lower loop and high cutting in the same knitted rank simultaneously and to knit pile cutting and looping jacquard knitted fabric with high stereo feeling, high color contrast and vivid patterns.

The invention provides an ultrasonic micro interventional needle-knife comprising a needle-knife, an ultrasonic transducer and a driving power supply. The needle-knife comprises a needle-knife connecting rod, a needle-knife working end positioned at one end of the needle-knife connecting rod, and a needle-knife connecting end positioned at the other end of the needle-knife connecting rod. The ultrasonic transducer comprises a transduction connecting rod, an ultrasonic generator and a transducer, wherein one end of the ultrasonic generator is the transduction connecting rod, the other end of the ultrasonic generator is the transducer, the ultrasonic generator is electrically connected with the driving power supply, and the needle-knife connecting end is connected with the transduction connecting rod. By using the ultrasonic micro interventional needle-knife, the technical problems that the needle-knife in the prior art is less in function and limited in treatment effect are solved.

The invention discloses a visual intelligent ceramic needle knife which comprises a handle, an image processing and displaying module, a power supply, a signal amplifier, a lighting mechanism adjuster, a straight knife rod, a signal transmission line, a knife head rod, a lighting mechanism and a waterproof microscope lens. As the waterproof microscope lens is arranged in a groove in the knife head rod, the part where the knife head rod reaches can be imaged; the images shot by the waterproof microscope lens can be transmitted to the signal amplifier through the signal transmission line to be amplified and then displayed on the image processing and displaying module; a doctor can control the position of the knife head rod in real time by observing the images on the image processing and displaying module; thus, the intelligence and the visualization of the needle knife are achieved, and the problem that some doctors are short of experience to cause treatment accidents is solved.

The invention discloses a needle-knife component for acupuncture. The needle-knife component comprises a linear needle knife and a cross-shaped needle knife, wherein a knife handle of the linear needle knife is internally provided with a first inserting hole for containing a knife thorn of the cross-shaped needle knife, and a bulge with an external thread is arranged on the outer-side end surfaceof the knife handle of the linear needle knife; a knife handle of the cross-shaped needle knife is internally provided with a second inserting hole for containing a knife thorn of the linear needle knife, and a convex ring is arranged on the outer-side end surface of the knife handle of the cross-shaped needle knife; an internal thread matched with the external thread is arranged in the inner wallof the convex ring. The needle-knife component for acupuncture disclosed by the invention has the beneficial effects that the structure is simple, and when the needle-knife component is not used, theknife thorns can be placed in the corresponding knife handles, so that the knife thorns can be prevented from injuring persons and the pollution can be prevented; when in need of use, the linear needle knife and the cross-shaped needle knife only need to be separated; if the two knives need to be alternatively used in treatment, the separated linear needle knife and cross-shaped needle knife onlyneed to be connected into an integrated needle knife, so that the needle-knife component is very convenient; after use, the knife handles can be screwed, so that the cross contamination is avoided and the needle-knife component is sanitary and safe.

The invention discloses a multi-angle visual high-strength and high-tenacity self-sensing ceramic needle knife. The multi-angle visual high-strength and high-tenacity self-sensing ceramic needle knife comprises an image processing and displaying module, a minitype projector, a power source, a signal amplifier, an illumination mechanism regulator, signal lamps, a data processing module, a handle, a straight knife bar, a signal transmission line, a resistance detecting module, a knife rod and a curtain. The resistance detecting module is internally provided with a force sensor and is used for measuring resistance subjected by a knife edge at the end portion of the knife head rod in the advancing process in the tissue of the human body. The signal lamps represent different tissue layers where the knife edge at the end portion of the knife head rod enters of the human body. The data processing module processes data and controls the corresponding signal lamps to be turned on, and self sensing of the needle knife is achieved. The waterproof microscope lens can image a portion where the knife head rod arrives, and then the image is displayed on the image processing and displaying module. A doctor controls the position of the knife head rod in real time according to the image by observing the image on the image processing and displaying module, and the multi-angle visual high-strength and high-tenacity self-sensing ceramic needle knife can be used for multi-person and multi-angle consultation and used for occasions of teaching and the like.