37 results about "Vascular clamp" patented technology

A high-performance near-pure zinc alloy, a preparation method therefor and a use thereof, relating to the technical field of zinc alloys. The alloy component is that the content of Zn is greater than or equal to 99.5%, and the remaining trace alloy elements include at least two of the following 14 elements: Mg, Mn, Li, Cu, Ag, Ca, Sr, Fe, Zr, Ti, Al, C, Ga, and Si. The alloy has the yield strength ≥ 250 MPa, the tensile strength ≥ 320 MPa, the elongation ≥ 25%, the mechanical property change during one year of room-temperature storage ≤ 5%, the maximum bending force ≥ 2 kN, the stress corrosion sensitivity factor ≤ 15%, the size of corrosion pits after 60 days of immersion ≤ 15 μm, and the standard deviation of the size of corrosion pits ≤ 3 μm. The alloy is suitable for the preparation of biodegradable stents, bone implant devices, medical staplers or anastomotic nails for intestines, blood vessels or nerves, vascular clamps, guided bone or tissue regeneration membranes, heart valve protheses, dura mater repair membranes, soluble bridge plugs and fracturing balls for oil drilling, zinc alloy die castings, electroplated zinc materials, building zinc materials, battery-grade zinc, printing-grade zinc, and zinc-based brazing alloys.

The utility model provides simple and convenient forceps type vessel forceps which comprise a first forceps rod and a second forceps rod. The elastic sheet is mounted between the first forceps rod and the second forceps rod; the lock catch mechanism comprises a lock block mounted on the first forceps rod and a lock body mounted on the second forceps rod; after the locking block is inserted into the lock body, the locking block is locked through the lock body; and the pressing unlocking part can be used for unlocking the locking block, and the pressing unlocking part is mounted on the second forceps rod. By arranging the lock catch mechanism, the elastic piece and the pressing unlocking part, after the vessel forceps are clamped and closed, locking is achieved, the vessel forceps are used for automatically keeping the clamping and closing state of the vessel forceps, meanwhile, in the clamping and closing process, the first forceps rod and the second forceps rod compress the elastic piece to generate reset force, and in the vessel forceps opening process, unlocking can be achieved only through pressing operation of the pressing unlocking part; and then the vessel forceps are automatically opened through the elasticity of the elastic sheet.

1. The name of this design product: Vascular forceps. 2. Purpose of this product design: This product design is used to clamp blood vessels or bleeding points. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model relates to the technical field of medical instruments, and discloses a device capable of controlling the clamping rotation angle of vessel forceps, the device comprises a first clamping part, a second clamping part and a control assembly for controlling the first clamping part and the second clamping part to be close to or away from each other, the first clamping part and the second clamping part are rotationally connected, and the first clamping part and the second clamping part are rotationally connected. The first clamping part and the second clamping part are respectively provided with a protruding part, a clamping body of the vessel forceps is provided with a groove, and the protruding parts are matched with the grooves. According to the vessel forceps, the clamping stability and adjustability can be guaranteed, and the clamping angle of the vessel forceps can be adjusted according to needs in the operation process.

The application discloses a single-hole laparoscopic cholecystectomy method and relates to the technical field of laparoscopy application, S1: a patient is given general anesthesia by air insertion, a belly navel turning-over technique is used to establish an operation hole at the navel, and a single-port multi-channel puncture device is arranged; S2: a 30-degree straight laparoscope lens, a curved blood vessel clamp, a non-injury grabbing clamp, an ultrasonic knife, an electric coagulation hook and other conventional surgical instruments used in multi-hole laparoscopic cholecystectomy are used, a Cross Hand method is adopted to enter the surgical instrument, the bottom of a gallbladder is lifted by the non-injury grabbing clamp, and a gallbladder triangle is exposed. If the gallbladder triangle is shielded by liver Ⅲ or Ⅳb in this step, the visual field cannot be completely exposed, and a liver traction device needs to be used to assist in exposing the visual field of the gallbladder triangle. The application always keeps the same traction force on the liver, avoids the problem that the traction force of the liver is insufficient to cause unclear visual field with the cutting of the gallbladder being deepened, better exposes the surgical visual field of the gallbladder triangle, reduces the operation time and improves the operation safety.

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 invention discloses a construction method of a rat deep vein thrombosis model, and relates to the technical field of animal models, and the key points of the technical scheme are that the construction method comprises the following steps: step 1) experimental animal selection; step 2) setting in groups; 3) preparing experimental materials and equipment; step 4) preparation before an experiment; 5) anesthesia and surgical operation; and 6) taking down the vascular clamp and closing the abdomen for disinfection. The invention provides a stable and clinically related rat deep vein thrombosis model, the repeatability and reliability of experiments are improved through accurate surgical operation, the experimental process is simplified, the research efficiency is improved, and a powerful experimental tool is provided for research and treatment of deep vein thrombosis.

The utility model relates to the technical field of vascular clamp instruments, in particular to an oral and maxillofacial hemangioma clamp which comprises a first clamping portion, a second clamping portion, a third clamping portion and a fourth clamping portion. The second clamping part comprises a second clamping rod and a second clamping ring which are connected with each other; the connecting assembly is arranged on the first clamping rod and the second clamping rod, and the first clamping part and the second clamping part are connected in a closed mode through the connecting assembly. The first clamping part and the second clamping part are arranged, the two clamping parts comprise the first clamping ring and the second clamping ring respectively, and the clamping rings are internally provided with the containing cavities for containing the oral maxillofacial hemangioma, so that the clamping range is greatly enlarged, blood backflow in the hemangioma body can be reduced to the maximum extent, the drug concentration in the hemangioma body is increased, and the treatment effect is improved. And moreover, the retention time of the medicine in a tumor body is prolonged, and the treatment effectiveness is improved.

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 utility model provides a pair of self-locking vessel forceps, which belongs to the technical field of vessel forceps, and comprises a forceps handle rod, a first clamping arm bent towards one side is arranged at the front end of the forceps handle rod, a sliding rod is arranged on the forceps handle rod, the sliding rod is in sliding fit with the forceps handle rod, a second clamping arm is arranged at the front end of the sliding rod, and the second clamping arm is connected with the first clamping arm. The second clamping arm and the first clamping arm are arranged in parallel, a driving assembly used for driving the sliding rod to slide is arranged at the rear end of the sliding rod, the driving assembly comprises a driving rod, the driving rod is hinged to the forceps handle rod, the side, close to the first clamping arm, of the upper end of the driving rod abuts against the sliding rod, and the second clamping arm abuts against the second clamping arm. A self-locking structure is arranged between the forceps handle rod and the driving rod. The vessel forceps overcome the defects that traditional vessel forceps need to apply force continuously to maintain clamping, so that the hands of a doctor are tired, the clamping force is difficult to control, and tissue is damaged easily.

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 present invention provides a vascular clamp comprising a clamp body, the clamp body including a main force storage plate, the main force storage plate being in an arcuate shape, one end of the main force storage plate being connected to an elastic plate extending upward from the bow opening to the other end of the main force storage plate, the elastic plate being in an arcuate shape with the bow opening facing the main force storage plate, the elastic plate being provided with a support portion relative to the end connected to the main force storage plate, the main force storage plate being provided with a notch relative to the end connected to the elastic plate, the notch facing the end of the main force storage plate connected to the elastic plate; and control ears for adapting to surgical forceps and thereby squeezing the main force storage plate and the elastic plate at mid-section on a side of the main force storage plate facing away from the elastic plate. The present invention has the advantages of good clamping effect, minimal damage to blood vessels, and can effectively prevent blood vessels from slipping or deviating during clamping.

The vessel forceps comprise a first forceps handle and a second forceps handle, the upper side of the first forceps handle is provided with a rectangular groove, the inner side of the rectangular groove is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with the second forceps handle, and the rotating shaft is fixedly connected with the second forceps handle. Handle parts are fixedly connected to the outer sides of the first plier handle and the second plier handle, a first clamping block is fixedly connected to one side of the first plier handle, a second clamping block is fixedly connected to the side, close to the first clamping block, of the second plier handle, and a first plier head is fixedly connected to the right side of the first plier handle. According to the vessel forceps suitable for abdominal aorta blocking and catheterization, by arranging the first forceps handle, the second forceps handle, the mounting plate, the side blocks, the contact plates, the pulling plate, the first spring, the second spring, the clamping rod and the clamping hole, when the first forceps head and the second forceps head block a blood vessel, the multiple contact plates can conveniently and rapidly extrude a suction tube through movement of the pulling plate, the blood vessel blocking effect is improved, and operation is easy.

The utility model discloses a regular clamping and loosening vascular clamp which comprises a first clamping rod, the top of the first clamping rod is rotationally connected with a second clamping rod, one end of the second clamping rod is rotationally connected with a clamping head, pinching pieces are fixedly connected to the ends, away from the clamping head, of the outer portions of the first clamping rod and the second clamping rod, and a first spring is fixedly connected between the two pinching pieces. The top of the first clamping rod is fixedly connected with a first fixing plate. Belongs to the technical field of vascular clamps. According to the regular clamping and loosening vascular clamp, a user pinches a pinching piece to drive a first clamping rod and a second clamping rod to rotate mutually, so that a clamping head on the second clamping rod is far away from the first clamping rod, meanwhile, the pinching piece compresses a first spring, and after the pinching piece is loosened, elasticity of the first spring drives the clamping head and the first clamping rod to clamp a blood vessel; at the moment, the first contact abuts against the second contact, the timer is turned on to start timing, the buzzer sounds to give an alarm after timing is finished, the purpose of automatic timing is achieved, use is convenient, operation is easy, and practicability is high.

The invention belongs to the technical field of vessel forceps, and particularly relates to a multifunctional vessel forceps and a using method thereof.The multifunctional vessel forceps comprise a first forceps arm and a second forceps arm, the first forceps arm and the second forceps arm are hinged through a rotating shaft, the front end of the second forceps arm is fixedly connected with a second forceps mouth, and the rear end of the second forceps arm is fixedly connected with a first ferrule; the front end of the first forceps arm is fixedly connected with a first forceps mouth, the rear end of the first forceps arm is fixedly connected with a second ferrule, a connecting channel is formed in the side, close to the first forceps mouth, in the first forceps arm, one end of the connecting channel is in through connection with a liquid extraction opening, and the other end of the connecting channel is in through connection with a leather hose connecting opening; through the arrangement of the connecting channel, the tube head and the leather tube connector, an air exhaust leather tube can be connected to extract redundant tissue fluid, various requirements in an operation are met, and the operation convenience and efficiency are improved; the included angle between the liquid extraction opening and the plane is 30 degrees, so that the influence on the operation of the first forceps mouth and the second forceps mouth is avoided, and the surgical operation is more accurate and smoother.

The utility model discloses a vascular clamp for vascular suturing. The vascular clamp comprises two acting clamp bodies (1) which are crossed and hinged with each other, the acting clamp body (1) comprises a connecting part (3) used for hinging, a front rod body (4) and a rear rod body (5) are arranged at the two ends of the connecting part (3) respectively, a front connecting column (6) is arranged on the front rod body (4), a rear connecting column (7) is arranged on the rear rod body (5), and the distance between the front connecting column (6) and the connecting part (3) is equal to the distance between the rear connecting column (7) and the connecting part (3); according to the utility model, the blood vessel can be closed comprehensively, so that the reliability of blood vessel suturing is improved.

The utility model relates to the technical field of vessel forceps, and discloses a radio frequency endoscope electrode vessel forceps, which comprises a first vessel forceps handle and a second vessel forceps handle rotatably mounted at the top of the first vessel forceps handle, and contraction cavities are formed in one end of the first vessel forceps handle and one end of the second vessel forceps handle. Limiting holes are evenly formed in the sides, away from each other, of one ends of the first vessel forceps handle and the second vessel forceps handle, and a telescopic rod is movably installed in the contraction cavity. The telescopic rod is pulled outwards, one end of the limiting block automatically moves to the interior of the limiting hole in one side, the telescopic rod is limited and fixed through the elastic force effect of the spring, and therefore the distance between the electrode vessel forceps head and the joint of the rotating shaft is prolonged to a proper length; and the joint of the rotating shaft cannot extend into the cortex, so that the situation that the difficulty of an operation is increased due to bleeding caused by the fact that the rotating shaft clamps the cortex such as tissue when medical personnel clamp the cortex is avoided.

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 provides a fully-closed hemodialysis external circulation pipeline, and relates to the technical field of medical equipment. The circulating pipeline comprises an artery blood drawing tube and a vein blood returning tube; the artery blood drawing tube comprises an artery main tube, and a first artery side tube, a second artery side tube and an artery jug which are communicated with the artery main tube; the vein blood return tube comprises a vein main tube and a first vein pot communicated with the vein main tube; the vein main tube is sequentially connected with a first vein side tube, a second vein side tube and a third vein side tube; the first artery side tube is communicated with the second vein side tube, and the second artery side tube is used for supplying normal saline; vascular clamps are arranged at the port of the vein main tube, the first vein side tube, the first artery side tube, the vein main tube between the second vein side tube and the third vein side tube, the third vein side tube, the port of the artery guide tube and the second artery side tube. The circulation pipeline does not cause environmental pollution and patient blood loss under the condition of closed blood leading, and blood sample collection can be completed.

The application discloses a blood vessel forceps, which comprises a first forceps handle and a second forceps handle; the first forceps handle and the second forceps handle are hinged through a rotating shaft; the distal end of the first forceps handle forms a first forceps mouth, the distal end of the second forceps handle forms a second forceps mouth, and the opposite surfaces of the first forceps mouth and the second forceps mouth can be mutually attached; the blood vessel forceps further comprises an electric knife assembly, which is arranged on the first forceps handle and can be telescopically extended along the axis direction of the first forceps handle, and can be extended through the plane where the distal end surface of the first forceps mouth is located; the blood vessel forceps can be directly used to cut tissues and then directly used to crush the tissues, a user holds one instrument, so that the operation time is shortened, the operation quality is improved, and the pain of the patient is reduced.

The utility model relates to the technical field of medical auxiliary instruments, in particular to detachable vascular clamp continuous firing forceps which comprise a handle, a conveying pipe and a trigger, the surface of the handle is rotationally connected with the trigger penetrating through the handle, one end of the conveying pipe extends into the handle and is connected with the trigger in a sliding mode, one end of the conveying pipe is fixedly connected with a threaded sleeve, and the threaded sleeve is fixedly connected with the handle. The surface of the threaded sleeve is in threaded connection with a first sleeve piece, a buckle is arranged on the surface of the first sleeve piece, the surface of the first sleeve piece is sleeved with a second sleeve piece, and a clamping groove is formed in the surface of the second sleeve piece. When the conveying pipe needs to be taken down, the conveying pipe, the first sleeve piece and the second sleeve piece can be taken out from the handle by retreating the buckle from the clamping groove, the conveying pipe can be detached, the conveying pipe and the handle can be detachably installed through cooperation of the first sleeve piece and the second sleeve piece, and after the vascular clamp in the conveying pipe is used up, the conveying pipe can be conveniently detached. The conveying pipe is detached for replacement or vascular clamp supplementation.

1. The name of the design product: blood vessel clamp. 2. The use of the design product: for clamping blood vessels. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view 1.

According to the medical surgical vessel forceps placement rack, when vessel forceps are placed, the middle of the vessel forceps is clamped through a flexible clamping assembly, the holding end of the vessel forceps is placed on a mounting base, and the clamping ends of the vessel forceps are arranged in a suspended mode, so that collision of the clamping ends of the vessel forceps is avoided; when vessel forceps of a certain model are taken, in order to avoid touching adjacent vessel forceps and facilitate taking of the vessel forceps, the mounting base is firstly pushed to move downwards to be close to the embedded end of the mounting groove, in the process, the jacking assembly drives the holding end of the vessel forceps to be lifted upwards, and the movement of the mounting base drives the holding end of the vessel forceps to protrude; therefore, the vessel forceps can be conveniently taken.

The utility model relates to the field of medical instruments, and particularly discloses an adjustable cardiovascular clamp which comprises a vascular clamp body, the vascular clamp body comprises a first clamping arm and a second clamping arm, extending sleeves are arranged on the outer side of the first clamping arm and the outer side of the second clamping arm respectively, clamping heads are symmetrically arranged at the front ends of the two extending sleeves, and the clamping heads are connected with the first clamping arm and the second clamping arm respectively. Two extension sleeves are symmetrically arranged on the inner side wall of the clamping head, clamping handles are symmetrically arranged at the rear ends of the two extension sleeves, positioning bolts are installed on the outer sides of the ends, close to the clamping handles, of the extension sleeves, a clamping ring is arranged on the inner side wall of the clamping head, a cutting edge is arranged on one side of the clamping ring, and a tooth piece is arranged on the portion, located on the inner side wall of the clamping head, between the cutting edge and the clamping ring. The flexible pad in the clamping ring can be used for clamping a blood vessel in operation, the blood vessel corresponds to the tooth pieces in the two clamping heads in position, and the groove type of the tooth pieces is consistent with the inner side tooth type structure of hemostatic forceps, so that the blood vessel can be clamped in an emergency.

The utility model relates to the technical field of medical instruments, and provides a negative pressure drainage device connector structure which comprises a drainage bottle connector, a buckle position is arranged on the outer wall of the drainage bottle connector, the buckle position comprises a connecting portion and a buckle portion, the buckle portion is provided with an inclined face, and the inclined face is provided with a clamping groove. A step surface is formed between the buckling part and the connecting part, and a pressing groove is formed in the inner side of the buckling part; a pressing position is arranged on the outer wall of the drainage tube connector, a buckle groove is formed in the inner wall of the drainage tube connector and located on the inner side of the pressing position, and a switch valve is arranged at the end, away from the drainage bottle connector, of the pressing position; the buckling part can be clamped into the buckling groove, so that the drainage bottle joint and the drainage tube joint are connected in a buckling manner. The drainage bottle connector and the drainage tube connector can be stably connected and fixed, gauze wrapping and winding are not needed, and the drainage bottle connector and the drainage tube connector are not prone to loosening or even falling off to cause liquid leakage. When a medical worker replaces the drainage bottle, connector connection can be released by pressing with hands, vessel forceps are not needed, operation is easy, convenient and efficient, and the infection risk is reduced.

The utility model discloses a clip applier base, which relates to the field of medical auxiliary instruments and comprises mounting seats fixedly connected with two clip heads respectively, one end of each mounting seat is rotatably connected with a group of connecting rods, the number of each group of connecting rods is two, and the two connecting rods are parallel to each other. The other ends of the two sets of connecting rods are jointly and rotationally connected with a fixing base, a driving mechanism is arranged at the end, away from the connecting rods, of the fixing base and used for driving the two tong heads to move close to each other, and the two tong heads are arranged in parallel in the close-to-each other process. The driving mechanism is arranged to be matched with the rotating shaft to realize synchronous approaching movement of the two forceps heads, so that uniform clamping force is formed on a blood vessel, and the probability of blood vessel damage is reduced; under the condition of no external force, the forceps head keeps the maximum opening and closing angle, so that the blood vessel is conveniently clamped; the tong heads cannot move under the action of external force, so that the clamping stability is improved.

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.