32 results about "Endoclip" patented technology

The utility model discloses a pair of double-chuck vascular tissue closing forceps, which comprises a first handheld part, a second handheld part, a traction rod, a hinge connecting piece, a long catheter, a short bent pipe, a U-shaped block, forceps chucks, a steel wire and V-shaped spring-back pieces, and two connecting parts at the other end of the steel wire are fixedly connected with the middle parts of the two V-shaped spring-back pieces respectively; each V-shaped rebounding piece is installed between the two forceps chucks in the same group, one ends of the two forceps chucks are rotationally connected with the interior of the groove in the same end through a rotating shaft, a vascular clamp is placed between the two forceps chucks in the same group, the short grooves are formed in the end faces of the two ends of the U-shaped block respectively, and a short bent pipe is fixedly installed in the middle of the U-shaped block. The blood vessel fixing device has the advantages that based on a traditional blood vessel fixing device, a double-clamping-head structure mode is adopted, two blood vessel clamps can be clamped and fixed to the same blood vessel at the same time, the hemostasis flowing strength is enhanced, operation is convenient and fast, and the problem that the operation efficiency of clamping a single blood vessel clamp is low is solved.

The utility model relates to a large area contact type thread type degradable magnesium alloy aortic blood vessel anastomat, including the conical inner ring, conical outer ring and sleeve outer ring that set gradually from inside to outside, be provided with blood vessel clamping space between the conical inner ring and conical outer ring, it is the thread cooperation between conical outer ring and sleeve outer ring, adjust the size of blood vessel clamping space through the rotation sleeve outer ring, sleeve outer ring. The utility model simple structure, reasonable in design, convenient to use, adjust the size of blood vessel clamping space through the rotation conical outer ring and sleeve outer ring to fixed blood vessel, realize blood vessel anastomosis fast, avoid the mode of the traditional everted type through end face combination simultaneously, greatly increase the contact area between blood vessel and prevent the occurrence of blood leakage.

1. Name of the product in this design: Vascular clamp. 2. Purpose of this design: To close blood vessels or tissues during general surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to the related technical field of medical instruments, in particular to a surgical vascular clamp which comprises a right pressing handle, a rotating shaft is fixedly connected to the surface of one side of the right pressing handle, a connecting ring is connected to the surface of one side of the rotating shaft in a sliding mode, and a micro-clamping mechanism is arranged on the surface of one side of the connecting ring. According to the surgical vascular clamp, through the arrangement of the micro-clamping mechanism, when the surgical vascular clamp is used, a surgeon presses a button, the button stably slides in a clamping head shell through sliding connection of a clamping block in a clamping groove, the button drives a transmission rod to move, the transmission rod pushes a main pushing block, and then the main pushing block pushes a driven block, so that the position of a left clamping head anti-skid block is further finely adjusted; the clamping force is accurately controlled, the requirements of different blood vessels are met, and by means of the arrangement, the blood vessel clamping device can more subtly adapt to complex forms and lesion characteristics of the blood vessels, and the serious consequences that hemostasis is not thorough and the blood vessel clamp falls off due to too loose clamping are prevented.

Disclosed are systems and methods for safely and effectively deploying a hemoclip onto a patient's desired target using a hemoclip system. For instance, disclosed is an catheter that includes a lumen for a hemoclip to pass through. Additionally, disclosed are hemoclips that are configured to be in a compressed position until the hemoclip is deployed out of a catheter where it opens. Then, the hemoclip may be clipped onto the target to encapsulate the desired target within the patient. Once the hemoclip is clamped onto the target, the catheter can move onto the next target for successive deployment and utilization of the hemoclips without manual reload.

The vascular clamp for the internal arteriovenous fistula operation comprises an upper fixing frame, a lower fixing frame and a connecting rod, the end, away from the end connected with the lower fixing frame, of the upper fixing frame is fixedly connected with a first clamping arm, and the portion, located at one end of the lower fixing frame, of one side of the first clamping arm is fixedly connected with a second clamping arm; the first clamping arms and the second clamping arms are arranged in a staggered mode, the opposite sides of the ends, away from the upper fixing frame and the lower fixing frame, of the first clamping arms and the second clamping arms are fixedly connected with clamping bases correspondingly, and the interiors of the upper clamping base and the lower clamping base are movably connected with clamping blocks correspondingly. And a connecting ring is fixedly connected between the connected ends of the upper fixing frame and the lower fixing frame. According to the vascular clamp, the upper clamping block and the lower clamping block are attached to each other to clamp a blood vessel, the two clamping blocks rotate in the arc grooves in a sliding mode through the sliding blocks, when arteriovenous blood vessels are clamped, the vascular clamp can be rotated under the condition that the blood vessels are not rotated, and therefore the blood vessels are prevented from being damaged.

The invention discloses an improvement method of a rat cerebral ischemia reperfusion model, which comprises the following steps: S1, anesthetizing a rat, fixing, and separating and exposing an external carotid artery (ECA), a common carotid artery (CCA) and an internal carotid artery (ICA); s2, ligating one part of the trunk of the external carotid artery (ECA) close to the bifurcation of the trunk and the common carotid artery (CCA) to realize temporary blocking of the ECA; s3, temporarily blocking reverse blood flow at a telecentric end vascular clamp, close to the skull base as much as possible, of the internal carotid artery (ICA); the proximal end, far away from the bifurcation, of the trunk of the common carotid artery (CCA) is firmly bound through a 4-0 silk thread, and blood supply of the CCA to the brain is permanently blocked. A 4-0-degree silk thread is threaded at the position 3-5 mm away from the telecentric end of the ligation point, and a slipknot is tied to prepare a fixing thread bolt. According to the method, temporary ligation is carried out on a single part of the external carotid artery, and instant knot loosening is carried out after operation, so that partial blood supply of the ocular artery is recovered, the problem of retinal atrophy caused by long-term blocking of the external carotid artery of a traditional MCAO model is thoroughly solved, and model pathological correlation and animal welfare are considered.

The invention discloses microscopic vascular clamp holding forceps and a blood vessel clamping method.The microscopic vascular clamp holding forceps comprise a first forceps handle, a second forceps handle and an elastic steel rod, the middle part of the first forceps handle is hinged to the middle part of the second forceps handle, and the elastic steel rod penetrates through the middle part of the first forceps handle and the middle part of the second forceps handle at the same time; one end of the elastic steel rod abuts against the outer side of the middle portion of the first plier handle, the other end of the elastic steel rod abuts against the outer side of the middle portion of the second plier handle, the elastic steel rod is bent to form an annular ring structure coaxial with a hinge point, and the plier head end of the first plier handle abuts against the plier head end of the second plier handle to form a clamping jaw with the head end in a closed state. The clamping jaw is of a hollow structure from the middle portion to the tail end, and the tail end of the first plier handle and the tail end of the second plier handle are arranged in a spaced mode. The clamping forceps can prevent the microscopic vascular clamp from skewing and slipping, and is beneficial to improving the flexibility and accuracy of hand actions.

The utility model relates to a clamping nozzle assembly and a vascular clamp. The clamping nozzle assembly comprises a base part and two support arms. Each support arm is provided with a setting groove. The setting groove is provided with a first side wall surface, a second side wall surface, a first inclined bottom surface, a second inclined bottom surface and a groove bottom surface. The first side wall surface and the second side wall surface are arranged at an interval. One side of the first inclined bottom surface is connected to the first side wall surface, and the other side of the first inclined bottom surface extends towards the second side wall surface; one side of the second inclined bottom surface is connected to the second side wall surface, and the other side extends towards the first side wall surface. The two sides of the groove bottom face are connected to the first inclined bottom face and the second inclined bottom face respectively. The first inclined bottom surface and the second inclined bottom surface are inclined relative to the height direction of the arrangement groove. Due to the fact that the first inclined bottom face and the second inclined bottom face are arranged in the arrangement groove, when the supporting arm moves, the position of the supporting foot of the vascular clamp in the height direction can be kept not deviated.

The invention discloses an intelligent adjustable blood vessel closing system, which relates to the technical field of medical apparatus and instruments, and comprises a blood vessel holder and a functional module which are electrically connected and cooperatively work; the blood vessel clamping device comprises a pressing handle, a clamping arm piece, a clamping head and a self-destruction lock catch piece, the clamping head is provided with a silica gel pad and a pressure-sensitive film sensor, and a handle vibration piece is arranged in the pressing handle; the function module comprises a data acquisition module, an execution linkage control module, a hardware detection module, a data analysis module and an equipment management module; the data acquisition module preprocesses the force signal and the image data; the data analysis module evaluates the clamping force, the operation force and the blood vessel adaptation degree in a multi-dimensional mode; the linkage control module is executed to hierarchically display risks and provide clamping arm adjustment prompts; and the hardware detection and equipment management module realizes hardware state monitoring, equipment tracing and dynamic inventory management. According to the system, through mechanical structure optimization and software cooperation, the problems that the clamping force of a traditional system is difficult to control and equipment management lags behind are solved, and the operation safety and the medical resource efficiency are improved.

The arteriovenous fistula orifice precise forming vascular clamp comprises an application tool and a vascular clamp fixing assembly, the vascular clamp fixing assembly is installed at the end of the application tool, a vascular clamp assembly is installed on the side wall of the vascular clamp fixing assembly, and the vascular clamp assembly comprises a first clamping block and a second clamping block; a first annular block is fixedly installed on the side wall, close to the first clamping block, of the second clamping block, a cutting edge is fixedly installed on the outer wall of the first annular block, and a meshing block is fixedly installed on the side wall, close to the first clamping block, of the first annular block. The fistula clamp is applied to establishment of an autologous internal arteriovenous fistula (AVF) opening, the fistula opening can be quickly, efficiently and stably established in one step, manual cutting and blood vessel suturing are not needed, the fistula opening clamp can keep the shape of the fistula opening stable continuously or in a certain period in the arteriovenous fistula maturing and follow-up using process, the fistula opening is promoted to recover and form, and the situation that due to manual cutting, the fistula opening cannot be damaged is avoided. And the problems of infection, blood leakage, stenosis and the like caused by suture and the like are solved.

According to the blood vessel puncture port hemostasis plugging device and the using method, through the design of the blood return cavity and the marking tube of the dilator, an operator can directly observe pulsating blood spraying in real time, and clear and correct visual evidence is provided for whether the dilator and the tip end of a sheathing canal accurately enter a target blood vessel cavity or not. The risk that an instrument is placed in a vascular interlayer or a wrong position due to wrong hand feeling judgment is avoided, the operation safety and success rate are greatly improved, the knot pushing device integrates the functions of thread hooking, tensioning, knot pushing, cutting and the like, the thread hooking component can rapidly and firmly capture and tension a suture, and the operation safety is greatly improved. The knot pushing surface can smoothly push the movable knot to a preset position in a labor-saving manner and lock the movable knot; the implant adopts the structural design of an intravascular anchoring piece, an extravascular plugging piece and a locking cover, and can realize uniform and stable mechanical clamping and closing of a puncture opening from the inner side and the outer side of a blood vessel by combining with a suture loop capable of being locked in a sliding manner.

The invention relates to the technical field of surgical path planning, in particular to a robot-assisted mammary gland thyroid tumor minimally invasive excision path planning method and system, and the method comprises the following steps: collecting tissue structures, poses and response contents, carrying out synchronous processing according to timestamps, recognizing vascular structures, extracting spatial differences, expanding candidate regions, and reading gray variance. And judging an included angle relation, analyzing displacement change, and generating a path planning result. According to the method, a data fusion system with a unified time index is constructed, an organizational structure, pose information and perceptual response are integrated, the time sequence consistency of input data is enhanced, the trend change of an operation area is clarified through blood vessel direction continuity and a spatial difference value extraction mode, boundary continuity recognition is achieved in combination with boundary area gray and variance features, and the recognition accuracy is improved. The advancing direction is corrected based on the path and blood vessel included angle relation, the path node sequence and the adjustment range are dynamically judged according to the displacement difference, and the response capacity and stability of path planning to intraoperative changes are improved.

A vascular clamp assembly includes a first arm assembly that is pivotably coupled to a second arm assembly. The first arm assembly includes a first pulley disposed in a first recess, and the second arm assembly includes a second pulley disposed in a second recess. A coupling member extends from a portion of the first arm assembly, the coupling member including a cylindrical portion having a first channel and a second channel extending along a portion of the cylindrical portion, and each of the first and second channels is configured to receive a portion of an engagement rod of a delivery device to secure the coupling member within a securement portion of the delivery device in one of at least two possible orientations. A portion of suture contacts each of the first and second pulley to displace the vascular clamp assembly from an opened position to a closed position.

The invention discloses an artery blood vessel anastomosis adjusting auxiliary device, and belongs to the technical field of medical instruments, the artery blood vessel anastomosis adjusting auxiliary device comprises a blood vessel clamp, a connecting rod main body, a movable rod, two rapid clamping buckles, a limiter control button, a position limiter and a pressure air bag, the quick clamping buckle comprises an elastic clamping plate arranged inside and a clamping unlocking button arranged outside, the movable rod is nested in the connecting rod main body to form a telescopic structure, the position limiter comprises a limiting tooth groove and an opening and closing clamping tooth block, the opening and closing clamping tooth block is fixedly connected with a limiting spring arranged in the position limiter, and the limiting tooth groove is fixedly connected with the opening and closing clamping tooth block. And the limiter control button and the opening and closing clamping tooth block are mechanically and movably connected through a limiter pushing rod and used for forming a control mechanism of pressing unlocking and loosening locking, and the limiting device has the technical effects that rapid clamping, precise limiting and controllable speed are achieved at the same time.

The invention discloses a medicine balloon catheter integrated with a fractional flow reserve measuring function, and relates to the technical field of medical instruments.The medicine balloon catheter comprises a catheter detection assembly, a balloon assembly, a filling pipe and an in-vitro control assembly.The catheter detection assembly comprises a catheter, and the outer wall, close to one end, of the catheter is provided with a first integrated sensor; an integrated sensor II is arranged on the outer wall, close to the other end, of the conduit. Through the integrated design of the catheter detection assembly and the balloon assembly, FFR measurement, drug release treatment and postoperative effect verification can be completed through a single catheter, the catheter does not need to be replaced, the operation process is effectively shortened, the anesthesia risk of a patient and the radiation exposure duration are reduced, the catheter pushing frequency is reduced through the integrated design, and the operation efficiency is improved. The injury risk of the endangium is reduced, so that complications such as vascular interlayer and thrombus are reduced.

The present invention discloses a surgical instrument, such as a clip applier which can be configured to apply one or more clips to a vessel located within a surgical site in the patient. The clip applier can be structured and arranged to position a clip relative to the vessel in order to compress the vessel within the clip. The clip applier can be configured to deform the clip within the jaws. The end effector of the clip applier can include a replaceable clip cartridge.

The invention discloses an ultrasonic ablation system and method, and relates to the technical field of interventional medical instruments.The ultrasonic ablation system comprises a first driving unit and a second driving unit, the first driving unit is connected with a first pipeline, and the first pipeline communicates with a water return channel; the second driving unit is connected with the second pipeline; the second pipeline is communicated with the water inlet channel; the ablation host, the first driving unit and the second driving unit are electrically connected with the ablation host, the first driving unit and the second driving unit are independently adjusted through the ablation host, net flow difference generated between cooling liquid entering and flowing out of the balloon is controlled, the balloon is expanded and deformed, the net flow difference is adjusted, and the outer diameter of the balloon is adjusted to the target diameter. According to the system, the mechanical injury risk of vascular interlayer and rupture caused by excessive expansion of the balloon is fundamentally eliminated, and the safety of a vascular interventional operation is improved.

The utility model provides a vascular clip applier capable of adjusting turning, which relates to the technical field of clips, and comprises a first connecting rod, a handle is arranged on one side of the first connecting rod, an adjusting device is arranged on one side of the first connecting rod, the first connecting rod is provided with a second connecting rod by the aid of the adjusting device, and the second connecting rod is connected with the handle. One side of the second connecting rod is provided with a forceps holder, connecting ropes are arranged in the first connecting rod and the second connecting rod, the adjusting device can change the angle of the first connecting rod and the angle of the second connecting rod, the adjusting device comprises a placing plate, and the placing plate is fixedly connected with the first connecting rod. The angle of the first connecting rod and the angle of the second connecting rod can be changed, so that the angle of the forceps clip is changed, a worker can more conveniently clamp a blood vessel at different angles, and the use effect of the vascular clip applier is improved.

The application discloses a kind of thoracic cardiovascular surgery vessel holders, belong to blood vessel clamping technical field, by support base component, multi-axis support component and clamping component composition, support base component uses double vacuum pump to be matched with double structure adsorption head, can be closely adsorbed in medical plane, provide stable base;Multi-axis support component includes seven-axis linkage structure and self-locking joint, can realize all-around angle and height adjustment, the sixth rotating shaft is telescopic rod, and depth fine adjustment can be completed in cooperation with assembly seat, and automatically lock position after adjustment;Clamping component is clamped by screw rod screw thread transmission and lever structure, and is matched with elastic clamp pad and gyro wheel, and clamping force is accurately controllable, and screw thread self-locking can be durable pressure retention;The device does not need to be continuously hand-held, can avoid blood vessel injury, adapts multiple blood vessel operation scene, effectively improves the safety and operating efficiency of thoracic cardiovascular surgery.

The present application relates to the technical fields of biomedical engineering, in particular to a kind of inner support outer screwing type degradable magnesium alloy aortic blood vessel anastomat and working method, wherein blood vessel anastomat includes outer male ring, outer female ring and inner connecting pipe made of degradable magnesium alloy, the outer wall of the inner connecting pipe is spaced apart and provided with two circles of conical protrusions, and annular recess for accommodating the end head of two broken ends of blood vessel is formed between two circles of conical protrusions;The outer male ring and outer female ring are sleeved on the outside of inner connecting pipe, and the inner wall of outer male ring and outer female ring is respectively provided with one conical surface corresponding to conical protrusion, and the inner wall formed after outer male ring and outer female ring are connected forms blood vessel clamping space for accommodating blood vessel with the outer wall of inner connecting pipe.The blood vessel anastomat uses degradable magnesium alloy as material, can realize quickly, safely complete blood vessel anastomosis, and reduce the damage to blood vessel.

A system for implanting a graft includes a vascular clamp, a graft clamp, and a graft assistance apparatus. The vascular clamp includes a body portion and an occlusion portion. The occlusion portion may clamp a blood vessel to occlude a portion of the blood vessel. The graft clamp may clamp a piece of graft material. The graft assistance apparatus is secured to the vascular clamp and includes a securement segment and a clamping segment. The securement segment has an arm extending therefrom to secure the graft assistance apparatus to the body portion of the vascular clamp. The clamping segment defines a receiver with the graft clamp received in the receiver. The clamping segment is pivotally coupled to the securement segment such that the graft clamp is positioned at a graft angle.

A vascular clamp assembly includes a first arm assembly that is pivotably coupled to a second arm assembly. The first arm assembly includes a first pulley disposed in a first recess, and the second arm assembly includes a second pulley disposed in a second recess. A coupling member extends from a portion of the first arm assembly, the coupling member including a cylindrical portion having a first channel and a second channel extending along a portion of the cylindrical portion, and each of the first and second channels is configured to receive a portion of an engagement rod of a delivery device to secure the coupling member within a securement portion of the delivery device in one of at least two possible orientations. A portion of suture contacts each of the first and second pulley to displace the vascular clamp assembly from an opened position to a closed position.

The utility model discloses a vascular clamp storage ring, and relates to the technical field of medical supplies, the vascular clamp storage ring comprises an open-close type circular ring, the two ends of the circular ring are provided with a right-angle bending part and an arc hook part respectively, the arc hook part is provided with a hook opening, the right-angle bending part can enter and exit from the arc hook part from the hook opening, and the right-angle bending part can enter and exit from the arc hook part from the hook opening. The hook opening is provided with a pair of elastic sealing pieces, and the elastic sealing pieces are used for opening and closing the hook opening. The vascular clamp comprises the open-close type circular ring, the vascular clamps can be connected in series in a penetrating mode through the circular ring to be stored, a locking structure for locking the circular ring is formed in cooperation with the right-angle bending part, the arc hook part and the elastic sealing piece, and therefore the circular ring can be opened and closed conveniently, and the vascular clamps can be stored conveniently; the vascular clamp is prevented from being in a clamping state for a long time to cause abnormal elasticity and influence the service life.

Current surgical clips often fail to adequately engage with and compress small blood vessels, or they may impart uneven pressure distribution to the compressed tissue. Therefore, this new design aims to mitigate or overcome one or more of the problems associated with conventional surgical clips. [Solution] The surgical clip may include a first leg member having an inner surface, an outer surface, and first and second sides, wherein the inner surface of the first leg member has a concave curve; a second leg member having an inner surface, an outer surface, and first and second sides, wherein the inner surface of the second leg member has a convex curve; at least one first tooth extending from a first side edge of the inner surface of the second leg member; and a first channel defined between the first side and the inner surface of the first leg member. The first and second leg members may be configured to move between an open configuration and a closed configuration, in which at least one first tooth is received within the first channel.

The utility model relates to the technical field of blood collection tube clamping, and discloses a clamping jaw structure of a blood collection tube labeling machine, the clamping jaw structure comprises a power mechanism, a clamping jaw mechanism and a linear track, the power mechanism comprises a screw rod, and the screw rod is provided with a first threaded section and a second threaded section which are opposite in rotation direction; the clamping jaw mechanism comprises a first clamping jaw and a second clamping jaw which can slide along the linear rail in a reciprocating mode, the first clamping jaw is in threaded fit with the first threaded section, the second clamping jaw is in threaded fit with the second threaded section, the length direction of the lead screw is the same as that of the linear rail, and the lead screw drives the first clamping jaw and the second clamping jaw to be close to each other or away from each other. The clockwise thread and the anticlockwise thread are arranged on the same lead screw at the same time and matched with the two corresponding clamping jaws respectively, so that the lead screw rotates in the same direction to drive the two clamping jaws to grab or loosen the blood collection tubes, and the blood collection tube clamping device can be matched with the blood collection tubes of various specifications.

The utility model relates to the technical field of ligation vascular clamps, in particular to an anti-falling type ligation vascular clamp which comprises a clamp body, an arc-shaped groove is formed in the surface of the inner wall of the clamp body, an arc-shaped strip matched with the arc-shaped groove is integrally constructed on the surface of the inner wall of the clamp body, two sets of grooves communicated with the arc-shaped groove are formed in the surface of the outer wall of the clamp body, and the arc-shaped strip is arranged in the arc-shaped groove. A protruding block matched with the groove is integrally formed on the surface of the outer wall of the clamp body. When the vascular clamp for ligation is used, blood vessels can slide into the grooves in the clamp body conveniently, certain limiting performance is provided for the blood vessels conveniently, the arc-shaped strips and the arc-shaped grooves on the inner wall of the clamp body can be matched with each other along with closing of the clamp body, and therefore the blood vessels can be clamped and ligated; meanwhile, the convex block and the groove on the clamp body can be matched with each other and can be matched with the arc-shaped strip and the arc-shaped groove, so that double ligation is facilitated, the ligation hemostasis effect is improved, and the ligation vascular clamp can be used more conveniently.

The present application relates to a kind of large-area contact type thread type degradable magnesium alloy aortic blood vessel anastomat, including the cone type inner ring, the cone type outer ring and sleeve outer ring being sequentially arranged from inside to outside, blood vessel clamping space is arranged between the cone type inner ring and the cone type outer ring, the cone type outer ring and sleeve outer ring are threaded cooperation, the size of blood vessel clamping space is adjusted by rotating sleeve outer ring, sleeve outer ring.The present application is simple in structure, reasonable in design, convenient to use, the size of blood vessel clamping space is adjusted by rotating cone type outer ring and sleeve outer ring, to fix blood vessel, quickly realize blood vessel anastomosis, while avoiding the mode of traditional eversion through end face combination, greatly increase the contact area between blood vessel to prevent the occurrence of blood leakage.