842results about "Incision instruments" patented technology

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.

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.

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 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 invention relates to the technical field of medical instrument research and medical safety devices, in particular to an over-thick tissue percussion prevention type anastomat based on secondary percussion prevention and a method. An over-thick tissue percussion prevention type anastomat based on secondary percussion prevention comprises a nail bin assembly which comprises a nail abutting base and a nail bin base used for installing a nail bin with a nail pushing sliding block, and a safety boss and a first elastic piece are arranged on the side, close to the nail bin base, of the nail abutting base; the percussion assembly comprises a cutting knife which is pressed down under the elastic force action of a first elastic piece, and the cutting knife is provided with a first guide boss and an unlocking part; when the nail abutting base and the nail bin base are closed and the cutting knife is pressed downwards, the moving path of the first guide boss passes through the safety boss. And the unlocking part is propped by the nail pushing slide block so as to lift and release the cutting knife. According to the scheme, secondary percussion of a used nail bin and mistaken percussion caused by too thick tissue or insufficient closing of a nail bin assembly can be avoided, and safety and reliability of an anastomosis operation are improved.

The application discloses a dermato logical auxiliary device for cutting warts, and relates to the technical field of skin treatment, which comprises a fixed base, the lower surfaces of four ends of the fixed base are fixedly installed with self-locking wheels, the inner bottom wall of a shell is fixedly installed with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a steady lifting mechanism, the cutting height of a cutting clamp plate is steadily adjusted through multi-stage guiding during lifting movement, the adjusting mechanism and the steady lifting mechanism are in transmission connection, so that the cutting clamp plate is further bidirectionally adjusted in radial horizontal movement and angular deflection after completing lifting adjustment, the radial closing movement of the cutting clamp plate is realized through the transmission of bidirectional threads of a clamping and lifting mechanism, and the two sides of the warts are clamped and lifted at an angle to the center point through a synchronous linkage oblique hinged structure, the application has the effects of improving cutting precision and stability, realizing multi-dimensional adjustment to adapt to complex working conditions, and enhancing the reliability and safety of wart clamping.

The invention relates to the field of scalpel coatings, in particular to a self-repairing wear-resistant coating, a preparation method and a scalpel applying the self-repairing wear-resistant coating. The self-repairing wear-resistant coating comprises a vapor deposition layer and a self-repairing coating layer which are sequentially coated from inside to outside, the self-repairing coating layer is formed by drying and curing self-repairing coating liquid, and the wear-resistant and self-repairing dual functions are achieved through the synergistic effect of the vapor deposition layer and the self-repairing coating layer. The vapor deposition layer serves as a bottom layer and provides basic hardness and wear resistance, and the self-repairing coating layer is formed by curing a coating liquid and comprises poly (N-isopropylacrylamide) microgel, an antibacterial agent and self-repairing particles. The self-repairing particles realize microscopic repairing through chemical bond recombination when the coating is damaged, and the integrity of the coating is maintained. According to the double-layer structure, physical wear resistance and chemical self-repairing are combined, so that the service life of the surgical knife is remarkably prolonged, and the pollution risk in an operation is reduced.

The invention provides an anastomat body and an anastomat. The anastomat body comprises a first gear, a rotating head, a second gear and a power assembly. The first gear includes a first tooth portion. The second gear includes a second tooth portion engaged with the first tooth portion. The rotating head is connected with the nail bin assembly. The staple cartridge assembly comprises a jaw and a cutting knife. The power assembly drives the first gear to rotate, and the first gear drives the second gear to rotate. The rotating head defines a containing space, and at least part of the second gear is located in the containing space and connected with the rotating head so as to drive the rotating head to rotate. The rotating head drives the nail bin assembly to circumferentially rotate around the center shaft of the nail bin assembly. Circumferential rotation of the nail bin assembly is controlled in an electric mode, operation is convenient, and the operation precision and efficiency of an operation are improved.

The invention discloses a self-adaptive control system based on a cutting anastomat, and relates to the technical field of medical instrument control, and the system comprises an intelligent hardware module which is used for analyzing a motion control instruction based on an MCU (Microprogrammed Control Unit), receiving a PWM (Pulse Width Modulation) signal by a DC motor driver, and starting a tool bit to advance according to a preset acceleration curve; the TACS module analyzes the tissue state based on sensor data and dynamically adjusts the rotating speed and cutting force of a motor; and the man-machine interaction visualization module is used for carrying out visual and clear graphical and digital presentation, including electric quantity, anastomosis pressure and cutting progress, on the basis of an electronic display screen. The MCU serves as the core, the tool bit is controlled to advance according to the preset curve through PWM signals, it is ensured that the cutting action is accurate and stable, the equipment loss and the tissue damage risk are reduced, the TACS module analyzes the tissue state in real time and dynamically adjusts the motor rotating speed and the cutting force through a sensor, the cutting effect can be ensured for tissue with different hardness and thickness, and the cutting efficiency is improved. Healthy tissues can be protected, and the operation safety and efficiency are improved.

The present disclosure relates to a surgical instrument comprising: a machine body; a rotary housing having a first rotation interval and a second rotation interval; and a motor driving module connected to a swing motor. The motor driving module comprises a reversing module and a trigger element connected to the reversing module. When the rotary housing is in the first rotation interval, the trigger element is in a first state, drives, in response to a first operation of a user, the swing motor to rotate in a first direction, and drives, in response to a second operation of the user, the swing motor to rotate in a second direction. When the rotary housing is in the second rotation interval, the trigger element is in a second state, drives, in response to the first operation of the user, the swing motor to rotate in the second direction, and drives, in response to the second operation of the user, the swing motor to rotate in the first direction. The first direction is opposite to the second direction.

The invention discloses an electric anastomat detection method and system based on multi-modal sensing, and relates to the technical field of electric anastomat detection. A sensor array is constructed to collect state data of an electric anastomat in real time; preprocessing the state data to obtain data features, and constructing a feature model of the electric anastomat based on the data features; based on the feature model, constructing a multi-stage anomaly decision of the electric anastomat, wherein the multi-stage anomaly decision comprises a gradient response execution end and man-machine guide interaction; meanwhile, a main control center is constructed, and basic information, operation guidance, early warning guidance and emergency guidance of the electric anastomat are visually displayed; according to the invention, through multi-modal and high-dimensional feature extraction and multi-level abnormal decision making, the sensitivity and accuracy of detection of the electric anastomat are significantly improved, and the usability and safety of the system are greatly improved through the master control center.

A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together. 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 images 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 at least partially transparent. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

A disposable, sterile guide constructed of medically-acceptable plastic used for compartmentalizing and therefore protecting the ligament or fascia during three different orthopedic surgical procedures: ECTR, ECuTR, and EPFR. This device reduces the risk of damage to any other part of the surrounding anatomy. The device is disposable and packaged so as to be sterile and therefore readily usable by the surgeon means that it can reduce the risk of infection and is a less expensive alternative to traditional non-disposable, metal instruments that must be sterilized prior to each procedure.

The present disclosure relates to tissue cutting tools that can be used for forming an opening in a target tissue, such as a host leaflet within which a guest prosthetic valve can be expanded. In an example, the tissue cutting tool comprises an actuation tube and a blade support tube extending therethrough. A distal portion of the blade support tube can be coupled to a distal portion of the actuation tube, and a proximal portion of the blade support tube can be axially movable with respect to a proximal portion of the actuation tube. The blade support tube also includes a bendable section extending between its distal and proximal portions, and configured to transition between unbent and bent configuration thereof. At least one blade is coupled to at least one arm of the bendable section.

This invention discloses a stapler cutter and stapler cutter with a safety function. The stapler cutter includes a cutter head and a cutter body, which are connected in a relatively movable manner. This invention's stapler cutter and stapler cutter with a safety function effectively prevent the cutter head from re-entering the staple cartridge due to operational errors when the stapler cutter is not in a cutting state. Furthermore, the component implementing the safety function has a compact structure, occupies little space in the staple cartridge, and facilitates smooth cutting and suturing operations.

The present disclosure discloses a surgical instrument comprising: a body; the rotary shell is rotatably connected to the machine body; a part of the sleeve assembly is accommodated in the rotary shell; a jaw assembly; the push rod is connected to the jaw assembly; the jaw assembly rotates relative to the cannula assembly in response to the proximal or distal movement of the push rod; the driving mechanism comprises a motor and a lead screw nut structure, and in response to rotation of the motor, a lead screw drives a nut to move towards the near side or the far side so as to drive the push rod to move towards the near side or the far side; the lead screw nut structure further comprises a first fixing piece, and the connection between the push rod and the nut is released in response to the fact that the first fixing piece is detached from the nut. The nut comprises a first axial side face, a second axial side face and a surrounding face, the surrounding face comprises an outer side face, and the first fixing piece is detachably connected to the outer side face. Therefore, no part blocking exists between the first fixing piece and the dismounting hole, and a dismounting tool can smoothly enter from the dismounting hole and is connected with the first fixing piece so as to dismount the first fixing piece.

The utility model belongs to the technical field of medical instruments, and particularly discloses a cartilage cortex cutting knife which comprises a knife head. The tool bit is detachably installed at the head end of the handle, and a protection frame is arranged at the head end of the handle to shield the tool bit. The handle is in an arc shape with two protruding sides and a concave middle, and the head end of the handle is an inclined plane tangent to the arc line of the front end of the handle. When cartilage cortex cutting is carried out, under the arc arrangement that the two sides of the handle are convex and the middle of the handle is concave, an operator holds the handle more stably, the tool bit is detachably arranged on the inclined plane tangent to the arc line at the front end of the handle, the operator can apply force better to cut cartilage cortex conveniently, and the tool bit can be detached and replaced conveniently; meanwhile, the protective frame is arranged at the head end of the handle to shield the cutter head, the protective frame can fully shield the cutter head when cartilage cortex is cut, and the cutter head is prevented from accidentally injuring an operator.

The utility model relates to the technical field of surgical instruments, in particular to a disposable anoscope with a notch structure, which comprises a shell, a placing block is arranged on one side of the top end of the shell, a clamping block is fixedly connected to the inner wall of the placing block, an inner plug is fixedly connected to one side of the clamping block, and a rotating rod is fixedly connected to the inner wall of the inner plug. A placement groove is formed in the surface of the shell, an insertion block is clamped to the inner wall of the placement groove, and a fixing groove is formed in one side of the shell. According to the disposable anoscope with the notch structure, through the arrangement of the containing groove and the inserting block, when the disposable anoscope is used, after the device is inserted into the anus, the containing groove is aligned with the position where hemorrhoids are needed, the hemorrhoids can be placed in the containing groove, hemorrhoids can be conveniently cut off in an operation, and operation incision exposure and alignment suture are facilitated; the situation that the hemorrhoids are not placed in the containing groove and the hemorrhoids are hurt and a patient pains when the hemorrhoids are rotated is avoided, and therefore the effect that the hemorrhoids are conveniently cut off and wounds are conveniently sutured is achieved.

To provide a diathermy tonsillectomy apparatus which can be selectively configured between the use mode of incision, cautery incision and suction and the use mode of suction only.SOLUTION: A diathermy tonsillectomy suction dissector apparatus 140 has a body having a proximal handle, a distal curved tip and a diathermy cutting blade member slidably retained within the body to selectively extend from the tip. The diathermy cutting blade member comprises a flexible metallic blade comprising a proximal electrical connector socket and a hand operable electrically insulative position locking mechanism attached to the blade. The locking mechanism is hand operable via apertures and interlocks therewith to position the diathermy cutting blade member between retracted and extended positions and to lock the diathermy cutting blade member at the extended position.SELECTED DRAWING: Figure 24

The disclosure provides various embodiments of systems to facilitate the cutting of tissue structures and other tissue structures percutaneously.

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.

The device comprises an operating handle, an excision cavity with an opening in one side and a cutter, a freely-extending operating rod is arranged on the operating handle, the excision cavity is formed in the free end of the operating rod, and a suction limiting mechanism connected with external negative pressure suction equipment is movably arranged in an inner cavity of the excision cavity. The suction limiting mechanism is opposite to the opening of the excision cavity, can suck hypertrophic cardiac muscle tissue to be excided into the excision cavity, and can be close to or far away from the opening of the excision cavity so as to limit and adjust the depth of an inner cavity of the excision cavity, the cutter is movably arranged at the opening of the excision cavity in parallel, and a linkage mechanism is further arranged on the operating handle. The linkage mechanism penetrates through the operating rod to be connected with the cutter, the cutter can be pushed to move in parallel from one end of the opening of the excision cavity to the other end of the opening of the excision cavity so as to excide hypertrophic cardiac muscle tissue entering the excision cavity, by adjusting the position of the suction limiting mechanism, a doctor can conveniently control the excision thickness or depth, and the operation precision is improved.

The invention discloses a needle knife kit which comprises a syringe assembly, and the syringe assembly comprises a syringe barrel used for containing fluid and enabling the fluid to be discharged from one end. The needle-knife suite further comprises a needle-knife switching assembly, and the needle-knife switching assembly comprises a connector which protrudes out of and is communicated with the fluid discharge end of the syringe; one end of the outer sleeve sleeves the connector and can move in the axial direction of the connector; the inner needle knife is arranged in the outer sleeve in a clearance mode, a blade is arranged at one end of the inner needle knife, and the blade of the inner needle knife can be exposed or retracted into the outer sleeve after the outer sleeve moves. According to the needle knife, the sharp and blunt needle knife head can be replaced and used, cleaning liquid and medicine liquid can be injected, use is convenient, and the functions are diversified.

An intravascular device and methods of using the same are provided. An expandable portion includes struts movable between a collapsed position and an expanded position, and tissue modification element(s), each having a lower portion residing within or attached to one of the struts, an upper portion which extends outwardly from an outer surface of the strut and physically interacts with tissue during use. Irrigation and / or suction device(s) are provided for providing at least one of irrigation fluid and suction force at the expandable portion when operated.

An endoscopic tissue inversion and resection system employs an exemplary endoscopic tissue inversion and resection device configured to invert tissue to plicate the tissue between a pair of clamping tubes that advance a clamp component and guide clamp components around the plicated tissue. A clamp component may include magnets and / or a shape memory material. The magnets may produce a pinching force of the tissue. A shape-memory clamp component may have a preform shape that when configured around the plicated tissue clamps and retains the plicated tissue. An endoscope is configured between the first clamping tube and a second clamping tube and a tissue grasping device plicates the tissue. The endoscope may have an imaging device, to enable viewing of the interior of the body during a procedure to guide the endoscope to a desired location.

The conduit carrier includes a carrier housing that includes first and second contact ends and a vacuum channel extending between them. The vacuum channel is configured to connect to a vacuum source via the first contact end. An engagement mechanism is connected to the second contact end. The engagement mechanism is configured to engage with the conduit in a releasable manner during nerve repair surgery. A separator is configured to extend from the second contact end. When the engagement mechanism engages with the conduit during nerve repair surgery, the vacuum channel is connected to a vacuum port in the conduit via the second contact end so that a vacuum source can draw a vacuum into the conduit, and the separator extends into the conduit through the vacuum port, creating a predetermined regeneration gap between the first and second nerve stumps inserted into the conduit.

This document relates to devices and methods for the treatment of heart conditions. For example, this document provides devices and methods for treating heart failure with preserved ejection fraction, including diastolic heart failure, by performing a pericardial modification procedure.

A surgical device includes a housing, a circuit assembly, a drive element, a cutter, and an input assembly. The circuit assembly is arranged in the shell. The driving element is arranged in the shell and is electrically connected to the circuit assembly. The cutter is connected to the driving element and is driven by the driving element. The cutter protrudes from the first end of the housing. The input assembly comprises a nameplate and at least one key switch. The at least one key switch is arranged in the nameplate and electrically connected to the circuit assembly. The nameplate is arranged on the shell and exposed outside.