2136results about "Incision instruments" patented technology

To provide a device assembly and a method for treating heart failure by normalizing an elevated blood pressure in the left atrium of the heart of a mammal.SOLUTION: Disclosed herein is a transcatheter interatrial septum excision device assembly configured to create a sized interatrial aperture between right and left atria of a heart for relief of an elevated left atrial pressure. The device assembly comprises a delivery catheter, a tissue stabilizer attached to a first catheter having a central lumen and a penetrating tip that permits passage of a guidewire, and a cutter attached to a second catheter having a central lumen that permits passage of the first catheter. Alternative configurations comprise a (third) catheter having a central lumen that permits passage of the components to and from the right atrium, a tissue retention mechanism, and an optional coaxial alignment mechanism.SELECTED DRAWING: Figure 1

A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and / or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

A universal double joint is provided comprising: a drive rotatable bearing having a first spherical surface formed of a plastic material; a proximal metal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the first rotatable bearing; a driven rotatable bearing having a second spherical surface formed of a plastic material; and a distal metal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the second rotatable bearing.

The utility model discloses a transcatheter intracardiac space occupying resection device which comprises a sheathing canal, a catheter and a guide wire. The occupied space storage mechanism is arranged in the sheath tube and is used for fixing and temporarily storing occupied spaces under the guidance of the sheath tube; and the occupying capturing and cutting mechanism is arranged in the sheath tube, connected with the occupying storage mechanism and used for capturing and cutting occupying. By puncturing the blood vessel, conveying the working guide wire and the working sheathing canal, releasing the capturing system and fixing and cutting the space-occupying lesion in the heart cavity by virtue of the negative pressure system, the minimally invasive and accurate excision of the space-occupying lesion is realized, the operation is simple and convenient, and the risk of tumor dissemination during the space-occupying excision is reduced.

A tissue resection apparatus is provided which includes an outer tube with a helical coil disposed on a distal end. The coil is provided with a first electrode. A central tube has a distal edge profile comprising one or more surface segments. One of the surface segments includes a second electrode. The central tube is slidably disposed within the outer tube and positioned such that second electrode opposes at least a portion of the first electrode. A cutting tube is slidably disposed within the central tube and includes a cutting edge.

A surgical stapling instrument is configured to dissect tissue, apply a linear staple line along one side of the tissue dissection and apply a suture, such as a purse string suture, to the other side of the tissue dissection. The instrument comprises an elongate shaft, first and second jaws configured to open and close and a cutting element. The instrument includes a first row of staples in each of the first and second jaws having a suture extending therethrough and a second row of staples in the second jaw. A drive member is configured to translate distally through the end effector to dissect tissue with the cutting element, drive the second row of staples into the tissue on one side of the dissection and to apply the first row of staples and suture in combination to form a purse string suture on the other side of the tissue dissection.

Rapidly insertable central catheters (“RICCs”), introducers, and insertion devices including combinations and methods thereof are disclosed. For example, a RICC system can include an introducer and a RICC insertion assembly including a RICC assembly disposed in a RICC insertion device. The RICC assembly can include a RICC, an access guidewire, and a splittable casing over a catheter tube of the RICC and the access guidewire forming a longitudinal composite. The RICC insertion device can include a frame and a nose cover forming a split channel that splits away from a through channel of a nose of the frame. The RICC insertion device can be configured for advancing the RICC assembly by rolling the longitudinal composite across roller wheels disposed in the frame. The through channel can be configured for advancing the catheter tube therethrough while the split channel can be configured for both splitting and passing the splittable casing therethrough.

Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and / or skin repositioning and / or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

A debridement device for human body pathological tissue, comprising an insertion tube, a rotary cutting head and an operating handle. The insertion tube comprises an inner tube and an outer tube fitted outside the inner tube; an aspiration cavity is formed in the inner tube, and an irrigation cavity is formed between the inner tube and the outer tube; the rotary cutting head comprises a housing and a rotary cutting blade arranged in the housing; the interior of the housing is communicated with the aspiration cavity; a rotary cutting opening exposing the rotary cutting blade is formed on the housing; a notch corresponding to the rotary cutting opening is formed on the outer tube; the operating handle is connected to the insertion tube and the rotary cutting head so as to control the rotary cutting blade to cut human tissue at the rotary cutting opening, suction debris by means of the aspiration cavity, and use the irrigation cavity to flush the position where the rotary cutting head is located. The device can carry out both rotary cutting and aspiration on human body pathological tissue, reduce residues of necrotic tissue, effectively protect surrounding normal tissues and blood vessels, reduce the possibility that a patient requires repeated surgery, and improve the efficiency, effect and safety of minimally invasive therapy.

Surgical instrument bits are disclosed that mate to a multi-function surgical handle. The surgical instrument bits may include an integrated light source, and they may be disposable or reusable. Surgical instrument bits may comprise scalpel blades, skin hooks, retractors, curettes, comedone extractors, forceps, elevators, dissectors, elevators, bone hooks, suture removers, punch biopsy instruments and probes, reflecting devices such as mirrors, trocars and splinter liberators.

Provided is a surgical instrument. The surgical instrument comprises: a jaw assembly (100), a sleeve assembly (400), an angular steering member (210), and a locking member (300). The angular steering member (210) is rotatably connected to the sleeve assembly (400); the jaw assembly (100) is connected to the angular steering member (210); and in response to the rotation of the angular steering member (210), the jaw assembly (100) is configured to rotate relative to the sleeve assembly. The angular steering member (210) is provided with a wall portion (211) and a matching portion (212), and the matching portion (212) is arranged on the inner side of the wall portion (211). The locking member (300) has an unlocked state and a locked state; when in the unlocked state, the locking member (300) is separated from the matching portion (212), and the jaw assembly (100) is configured to rotate relative to the sleeve assembly (400) in response to the rotation of the angular steering member (210); and when in the locked state, the locking member (300) matches the matching portion (212) to prevent the jaw assembly (100) from rotating relative to the sleeve assembly (400). The surgical instrument can stably lock the jaw assembly and prevent the jaw assembly from rotating.

The invention discloses a variable-caliber catheter-sheath integrated thrombus aspiration catheter with an intra-catheter thrombus breaking function, and relates to the technical field of thrombus treatment medical catheters.The catheter-sheath integrated thrombus aspiration catheter comprises a guiding catheter and an aspiration pipe, the aspiration pipe is inserted into the guiding catheter in a sliding mode, and the catheter-sheath integrated thrombus aspiration catheter further comprises a multi-stage adjustment aspiration opening mechanism, a locking mechanism and a thrombus breaking mechanism; and the suction pipe is used for driving the multi-stage adjustment suction port mechanism to retract into the guide pipe or expand outwards from the guide pipe step by step. The multi-stage suction port adjusting mechanism connected with the end part can be driven by the suction pipe to extend out of the guide pipe, and is expanded step by step to reach the caliber with the corresponding size, and the multi-stage suction port adjusting mechanism is composed of the adjusting and scaling assembly, the supporting section metal wire and the covering film, so that a suction port with a larger caliber is conveniently defined; the thrombus can be conveniently and completely sucked and guided into the suction tube, an expander is not needed, operation of a doctor is reduced, and the situation that large thrombus is broken before being sucked into the tube and escapes to a far-end blood vessel to cause blockage can be avoided.

Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and / or skin repositioning and / or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

Disclosed herein is a catheter, which in some embodiments includes a distal section configured to enter a skin insertion site. The distal section can include a tapered junction having one or more dilation structures configured to dilate the skin insertion site. The distal section can further include a distal portion extending from a distal end of the tapered junction, the distal portion having a diameter smaller than a proximal portion of the catheter. In combination, the tapered junction, the one or more dilation structures, and the specific actions of the user urging the catheter into the insertion site can result in an improved fit of the catheter in the insertion site.

The manual knife returning device comprises a manual wrench assembly and a knife retracting assembly, the manual wrench assembly comprises a manual wrench handle, a manual wrench shaft sleeve and a manual wrench rotating shaft, and the knife retracting assembly comprises a knife retracting gear shaft, a knife retracting transmission gear, a motor gear and a rack. The tool retracting gear shaft and the tool retracting transmission gear can be driven to move upwards by rotating the manual wrench assembly, the tool retracting transmission gear is separated from the motor gear, the rack can be driven to retract through the tool retracting transmission gear by continuously rotating the manual wrench assembly, and manual tool retracting is achieved. By means of the mode, when the electric gear is rotated upwards through the lower half section of the wrench assembly, the middle section of the wrench is kept static, so that the tool retracting transmission gear can be easily pulled out, the wrench is further used as a torsion input tool after being pulled out, manual tool retracting is achieved, and the labor intensity of workers is reduced. And the risk that the knife cannot be retracted manually when the resistance is too large in the operation process is avoided.

A surgical instrument (40, 40A) for performing a goniotomy procedure includes a hand grip (44, 44A) having an elongated configuration with proximal and distal ends. The instrument (40, 40A) includes a tip (52, 52A) connected to the distal end (48, 48A) of the hand grip (44, 44A) which has a cutting means for creating a trabecular cleavage plane resulting in a remaining trabecular leaflet directly below Schwalbe's line in an eye to enhance drainage of aqueous humor from the eye. In one form, the cutting means includes a pair of sloping, arcuate cutting surfaces (70, 70A) that join to define an arcuate cutting edge (74, 74A).

The present invention relates to methods and devices for skin tightening after incising or excising tissue portions from a subject. Exemplary methods and devices include tunable dressings having an adhesive layer and a regulatable layer or an un-stretched layer that responds to one or more external stimuli to contract or expand the dressing, where the contraction or expansion can be uniform or non-uniform.

The invention belongs to the technical field of surgical robots, and particularly relates to an articulated lens connecting structure applied to a continuum surgical robotic.When the connecting structure is used, firstly, the mounting end of a tool bit penetrates into a first cavity, and the mounting end of the tool bit makes friction contact with the inner wall of the first cavity; the installation end of the tool bit is located between the multiple clamping pieces, the tool bit is higher than the clamping pieces, the installation end of the tool bit is rotated, then the rotary connector and the fixed connector are driven to rotate relatively, the multiple clamping pieces are driven to get close to and clamp the tool bit, installation of the tool bit is achieved, and the tool bit can be disassembled by rotating the tool bit reversely. Connection is convenient, fast and firm, and the possibility of surgical risks is reduced; and meanwhile, the first cavity is arranged to be in an inverted frustum shape, so that the first cavity can be matched with tool bits of different shapes and sizes, and the applicability is higher.

The utility model relates to an end actuator and an anastomat. The end actuator comprises a body, a nail felt, a nail bin seat, a nail bin, a percussion block, a push broach assembly and a safety mechanism, a groove is formed in the face, facing the nail felt, of a push broach rod of the push broach assembly, the far-end area of the safety mechanism is connected to the nail felt, and the middle area of the safety mechanism has elastic deformation capacity and arches in the direction close to the percussion block. When the safety mechanism is in the locking state, the near-end area of the safety mechanism inclines towards the direction close to the push broach rod, and the near-end area of the safety mechanism is inserted into the groove when the safety mechanism is in the locking state; when the clamping component is closed and the percussion block is located at the near end of the nail bin, the percussion block abuts against the middle area of the safety mechanism, the middle area elastically deforms to enable the near end area to be separated from the groove, and the safety mechanism is unlocked. The safety mechanism is simple in structure, the groove is formed in the push broach rod, the push broach rod and the safety mechanism can be locked in a matched mode without adding other parts, convenience is achieved, and the size of the end actuator can be reduced easily.

The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The device is configured for cutting the tissues within the eye, for example, a trabecular meshwork (TM).

A surgical stapling instrument is configured to dissect tissue, apply a linear staple line along one side of the tissue dissection and apply a suture, such as a purse string suture, to the other side of the tissue dissection. The instrument comprises an elongate shaft, first and second jaws configured to open and close and a cutting element. The instrument includes a first row of staples in each of the first and second jaws having a suture extending therethrough and a second row of staples in the second jaw. A drive member is configured to translate distally through the end effector to dissect tissue with the cutting element, drive the second row of staples into the tissue on one side of the dissection and to apply the first row of staples and suture in combination to form a purse string suture on the other side of the tissue dissection.

The invention relates to the technical field of medical apparatuses and instruments, and discloses a biopsy needle which comprises a shell. The near end of the inner needle tube is connected with an inner tube seat, and the inner tube seat is movably arranged in the shell; the inner needle tube is sleeved with the outer needle tube, the near end of the outer needle tube is connected with an outer tube seat, and the outer tube seat is movably arranged in the shell; the rotating mechanism is arranged in the shell and comprises a driving assembly and a transmission assembly in transmission connection with the driving assembly; wherein after the inner tube seat and the outer tube seat are triggered to complete sampling, the inner tube seat and the outer tube seat are both connected with the transmission assembly; by operably driving the rotating mechanism for multiple times, multiple times of synchronous rotation of the inner tube base and the outer tube base can be achieved. According to the biopsy needle provided by the invention, the biopsy needle can be relatively conveniently rotated so as to obtain a target tissue sample thoroughly separated from human tissues, and meanwhile, the range of influence on the human tissues around the target tissue when the biopsy needle is rotated is reduced.

The utility model discloses a hand-operated wrench assembly, a hand-operated knife return device and an electric anastomat, the hand-operated wrench assembly comprises a hand-operated wrench handle, a hand-operated wrench shaft sleeve and a hand-operated wrench rotating shaft, and the hand-operated knife return device comprises a hand-operated wrench assembly, a knife return gear shaft, a knife return transmission gear, a motor gear and a rack. The tool retracting gear shaft and the tool retracting transmission gear can be driven to move upwards by rotating the manual wrench assembly, the tool retracting transmission gear is separated from the motor gear, the rack can be driven to retract through the tool retracting transmission gear by continuously rotating the manual wrench assembly, manual tool retracting is achieved, and the electric anastomat comprises a manual tool returning device. By means of the mode, when the electric gear is rotated upwards through the lower half section of the wrench assembly, the middle section of the wrench is kept static, the tool retracting transmission gear can be easily pulled out, the wrench is further used as a torsion input tool after being pulled out, manual tool retracting is achieved, operation difficulty and failure risks are reduced, large torque is generated with small force, and the tool retracting transmission gear can be pulled out easily. And rapid manual tool retracting is achieved.

The utility model relates to the technical field of medical instruments, in particular to a power switching mechanism and a rotary cutter which are used for doing reciprocating rotation motion, the power switching mechanism is used for installing a cutter assembly and providing power for the cutter assembly, and an inner cutter tube can do reciprocating rotation motion in an outer cutter tube. The power switching mechanism comprises a reciprocating moving sleeve, a reciprocating driving assembly, a connecting main shaft and a power transmission assembly. The reciprocating moving sleeve is used for being fixedly connected with the inner knife tube. The reciprocating driving assembly is used for driving the reciprocating moving sleeve to reciprocate. And the connecting main shaft is used for driving the reciprocating sleeve to rotate. The power transmission assembly comprises a power input assembly, a rotation driving assembly and a reciprocating transmission assembly, the rotation driving assembly is used for driving the connecting main shaft to rotate, and the reciprocating transmission assembly is used for driving the reciprocating driving assembly to rotate. The power switching mechanism is simple in structure, all the structures are tightly matched, and the effect and efficiency of minimally invasive surgery can be effectively improved to a certain degree.

The utility model relates to the technical field of medical devices, specifically a fascia releaser, including a guide needle sheath and a releaser body; the guide needle sheath includes a needle sheath, a guide groove, and a blunt tip; the top of the needle sheath is provided with the guide groove through its length direction, the blunt tip is provided at the front end of the needle sheath, and the blunt tip is used to guide into the skin opening; the releaser body includes a connected handle and a release knife body; the release knife body matches the size of the guide groove; the front end of the release knife body is provided with a knife head, and under the traction of the knife head, the release knife body enters the skin opening along the guide groove, and the knife head is used to cut the target tissue; the handle is provided at the tail of the releaser body, and the handle is used for grasping. The utility model can completely cut off the target tissue to the greatest extent, and under the guidance of certain instructions for use, it is not restricted by the doctor's hand experience, can be quickly used, and the wound is very small.

A method is described for shearing a tissue wall between a first cavity and an adjacent second cavity in a human or animal body. The tissue wall has a periphery forming an edge of an opening between the first cavity and the second cavity. A first member is placed into the first cavity, such that the first member is adjacent the wall. A second member is placed in the second cavity, proximate the first member. The first and second members have materials which magnetically attract one another. The first member and the second member are placed such that there is magnetic attraction between the first member and the second member through the wall and thereby compress an overlapping portion of the wall to create pressure necrosis. The first member and the second member are connected by a thread, wherein the thread extends over the edge of the opening.

The wart-shaped neoplasm cutter and the wart-shaped neoplasm cutting and collecting integrated device comprise a fixed handle and a rotating handle, an installation space of a wart body collecting structure is reserved between the fixed handle and the rotating handle, a wart body cutting structure is arranged on the lower section of the fixed handle, and the wart body cutting structure is in mechanical linkage with the lower section of the rotating handle. The wart collecting structure is used for cutting off warts along with rotation of the rotating handle, and after the warts are cut off, the rotating handle can trigger the wart collecting structure through the triggering element on the upper section to complete collection of the cut warts at the same time. The utility model aims to solve the problems of inconvenience in treatment and cross infection risk after resection of neoplasm verrucosa in the prior art. Specifically, by means of the ingenious design, efficient cutting and instant collection of wart-shaped neoplasm are achieved, the operation process is simplified, safety is improved, and medical staff can conveniently and rapidly transfer collected wart samples to a laboratory for pathological examination.

A surgical image guidance system, including: a processing circuit including a processor and memory, the memory having instructions stored thereon that, when executed by the processor, cause the processing circuit to: receive, from an optical device, surface data characterizing a surface of a portion of soft tissue; receive, from an intraoperative imaging device, subsurface data characterizing a subsurface of the portion of soft tissue, wherein the subsurface includes a region of interest; measure, based on the surface data, deformation of the surface of the portion of soft tissue; update, based on at least one of (i) the deformation of the surface and (ii) the subsurface data, a model including a representation of the region of interest; and transmit a visual representation of the model to be displayed to a user.

Methods of using a soft tissue cutting device are disclosed. The methods include providing the soft tissue cutting device, positioning the soft tissue cutting device in a priming slot of a tray configured for receiving and holding the soft tissue cutting device, attaching a priming syringe to the soft tissue cutting device, priming a balloon disposed on a distal end of the soft tissue cutting device by equalizing a first pressure inside the balloon to a second pressure inside the priming syringe, removing the soft tissue cutting device from the priming slot, and positioning the distal end of the soft tissue cutting device on a safety slot included in the tray to determine whether the tissue cutting device has been properly primed.

A decompression surgery system includes an instrument shuttle configured to engage a first side of a target anatomical location, the instrument shuttle including a track. The system further includes a working channel configured to couple to and advance along the track of the instrument shuttle, the working channel having a distal end configured to engage a second side of the target anatomical location so that the target anatomical location is positioned between a portion of the instrument shuttle and the distal end of the working channel. The working channel is configured to receive one or more instruments therethrough.