89 results about "Endoclip" patented technology

The large-area contact type threaded degradable magnesium alloy aorta blood vessel anastomat comprises a conical inner ring, a conical outer ring and a sleeve outer ring which are sequentially arranged from inside to outside, a blood vessel clamping space is formed between the conical inner ring and the conical outer ring, and the conical outer ring and the sleeve outer ring are in threaded fit. The sleeve outer ring is rotated to adjust the size of the blood vessel clamping space. The blood vessel anastomosis device is simple in structure, reasonable in design and convenient to use, the size of a blood vessel clamping space is adjusted by rotating the conical outer ring and the sleeve outer ring, so that blood vessels are fixed, blood vessel anastomosis is rapidly achieved, meanwhile, the traditional outward turning type end face combination mode is avoided, the contact area between the blood vessels is greatly increased, and blood leakage is prevented.

The invention provides an intelligent decision-making method and system for free flap riser anastomosis based on hemodynamics. According to the method, firstly, the blood flow direction, the flow speed and the blood vessel wall tension parameter of a target blood vessel are collected, and a dynamic correlation model of intravascular fluid mechanics and external tissue deformation is established; a three-dimensional blood flow pressure gradient map is generated based on the model, then, a system automatically screens an anastomosis path meeting a blood flow resistance threshold value and the endothelial cell survival rate requirement, and the optimal anastomosis pose is determined by analyzing the blood vessel wall elasticity matching degree and the turbulence generation probability. Then, guiding the accurate adjustment of the clamping direction of the blood vessel and the suture needle pitch in the operation, ensuring that the pressure of the lumen of the anastomosed blood vessel is kept balanced when the anastomosed blood vessel is axially stretched, meanwhile, effectively inhibiting local vortex, and remarkably improving the long-term smoothness of the anastomosis of the blood vessel. According to the method, mechanical precise matching and blood flow stable control of free flap vascular anastomosis are achieved, and the postoperative risk is remarkably reduced.

The invention belongs to the field of medical equipment, and provides a pair of rotatable haemostatic forceps based on bipolar electrocoagulation and mechanical clipping, which comprises a holding handle, a connector is fixedly mounted on one side of the holding handle, an electrocoagulation switch is arranged on the upper surface of the connector, a forceps rod is rotatably mounted on one side of the connector, and a fixing groove is formed in the edge of one side of the forceps rod. A first fulcrum shaft is rotationally installed on the edge of one side of the inner wall of the fixing groove, and a clamping mechanism is arranged on the outer surface of the first fulcrum shaft and used for stopping bleeding of the bleeding part. According to the surgical forceps, the rotatable forceps rod and the guide assembly used for adjusting the rotation angle of the first fulcrum shaft are arranged, a doctor can conveniently and rapidly adjust the angle of the forceps head according to the requirements of different surgical views in the surgery, the position of an instrument or the body position of a patient does not need to be frequently adjusted, the surgical operation difficulty is greatly reduced, and the surgical time cost is reduced; and the accuracy of blood vessel clamping is improved, so that the amount of bleeding in an operation is effectively reduced.

The invention discloses a remotely-controllable coronary heart disease automatic radiography injection device, and belongs to the field of medical instruments. Comprising an injection device shell, one side of the injection device shell is connected with a remote control end through a wire, and a four-way pipe is arranged on one side of the inner surface of the injection device shell in a penetrating mode; through the automatic injection assembly, the injection speed and dosage of a contrast agent and other injections in the coronary angiography process can be accurately controlled, the pressure in a ventricular cavity is displayed in real time, automatic pressure alarming is achieved, injection injection injection is stopped in time, and complications such as vascular interlayer and laminar flow are avoided; automatic exhaust is achieved through the air valve, it is ensured that pushing injection is conducted after air is exhausted, and adverse events such as air embolism caused by incomplete manual exhaust in a traditional coronary intervention operation are avoided; the whole-course operation is simple, the radiography speed is increased through automatic, intelligent and other precise operations, the operation time is saved, and the operation safety, standardization and stability are improved.

The invention discloses an extravascular stent, and belongs to the technical field of intravascular stents.The extravascular stent comprises a plurality of vascular clamps, at least one vascular clamp is suitable for being clamped on the periphery of a first blood vessel, and at least one vascular clamp is suitable for being clamped on the periphery of a second blood vessel; the shaping hose is connected among the plurality of vascular clamps, and the shaping hose can be randomly bent in space and can be kept in a bent shape; when the multiple vascular clamps are clamped on the peripheries of the first blood vessel and the second blood vessel, the included angle between the first blood vessel and the second blood vessel is bent and shaped along with bending and shaping of the shaping hose. After the external vascular stent is installed, an operator can adjust the included angle between the first blood vessel and the second blood vessel in place, the shaping hose is shaped in a bent shape, and at the moment, the first blood vessel and the second blood vessel are shaped by the shaping hose in an angle-adjusted shape; therefore, angle adjustment and space shaping of the first blood vessel and the second blood vessel within the 360-degree range can be achieved.

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 provides a blood vessel model fixing device aiming at the defect that an existing fixed type clamping mechanism used for clamping plastic capillary vessels cannot be used for fixing poultry embryo blood vessels with different lengths, and belongs to the technical field of medical instruments, the blood vessel model fixing device comprises a base and a blood vessel clamp, and the base comprises a fixing rod of a long-strip-shaped structure. A plurality of grooves distributed in the length direction of the fixing rod are formed in the fixing rod; the two vascular clamps capable of adjusting the distance are arranged on the fixing rod, each vascular clamp is provided with a first clamping part used for being clamped on the fixing rod and a second clamping part used for clamping a vascular model, and the first clamping part of one vascular clamp is clamped and fixed in a groove in the fixing rod. And the first clamping part on the other vascular clamp is not in the groove. The blood vessel model fixing device is simple in structure and can be used for clamping capillary blood vessel models with different lengths.

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.

An articulating clamp for use during surgical procedures. An articulating surgical clamp for temporarily holding, clamping, and positioning patient tissue, for example, a vascular clamp for occluding a vessel. The articulating surgical clamp facilitates adjustment of the shape of the jaws of the clamp, for example, to improve vessel occlusion during surgical procedures. A method of temporarily occluding a blood vessel includes providing an articulating clamp as described herein, configuring the shape of the jaws of the clamp, and positioning the clamp to occlude a blood vessel.

The utility model relates to the technical field of blood treatment equipment, in particular to a blood cup separating device which comprises a shell, a blood collection tube bottle clamping mechanical arm is installed in the shell, a blood collection tube code reading module is installed on the blood collection tube bottle clamping mechanical arm, and a blood collection tube cover opening module is installed at the end of the blood collection tube bottle clamping mechanical arm. A blood collection tube jig is arranged on the lower portion in the shell, and a serum liquid level recognition module is arranged on one side of the blood collection tube jig. According to the blood cup separating device, through application of automatic equipment such as the blood collection tube bottle clamping mechanical arm and the pipetting mechanical arm, operations such as rapid clamping, moving, uncovering, code reading, pipetting and sub-packaging of blood collection tubes and cryopreservation tubes are achieved, the processing speed is greatly increased, and the high-throughput processing requirement is met. Through accurate identification of the blood collection tube code reading module and the cryopreservation tube code reading module and accurate measurement of the serum liquid level identification module, the accuracy of sample information and the accuracy of the branch tube quantity are ensured, and the reliability of a processing result is improved.

The utility model relates to the technical field of medical instruments, in particular to a vascular clamp holder frame for vascular surgery, which comprises a vascular clamp, the vascular clamp comprises two movable rods hinged to each other, one end of each movable rod is connected with a clamping block, the other end of each movable rod is connected with a holding ring, and one side of one movable rod close to the holding ring is connected with an arc-shaped rack. The side, close to the upper holding ring, of the other movable rod is connected with a guide frame matched with the arc-shaped rack, the movable rod connected with the guide frame is connected with an inverted-U-shaped sliding rod in a sliding mode, and the side, close to the guide frame, in the inverted-U-shaped sliding rod is connected with a clamping block used for clamping the arc-shaped rack. The blood vessel clamping force of the clamping block can be adjusted by adjusting the length of the arc-shaped rack moving into the guide frame, the arc-shaped rack can be clamped through the clamping block so that the movable rod and the clamping block can be locked, the hand does not need to apply force to the holding ring all the time, a doctor can conduct surgical operation conveniently, and hand fatigue and ache are effectively relieved.

The present invention discloses a test tube adapter applicable to immunoassay, comprising: a support part for placing and supporting the peripheral blood vessel; a clamping part integrally fixed to the lower part of the support part, and the clamping part is used for facilitating the clamping of the peripheral blood vessel by a clamp; and a fixing part integrally fixed to the lower part of the clamping part at the end of the adapter, and the fixing part is used for fixing and positioning the adapter. Wherein, a positioning hole is formed on the side wall of the fixing part, and an induction hole is formed on the side wall opposite to the positioning hole. According to the present invention, the structure is simple and effective, enabling the peripheral blood collection tube to be placed on the detection instrument for detection. The adapter is provided with a positioning hole, which can be positioned and locked when the adapter is placed on the detection instrument. Moreover, an induction hole is formed at the lower end position of the adapter where the peripheral blood collection tube is located, so that the peripheral blood collection tube can be exposed for the detection instrument to sense the peripheral blood collection tube.

The present invention proposes an adjustable angle wearable arm vascular clamp and a method for using the same, comprising two arc-shaped vascular clamps of the same specifications, a flexible rod and an arm fixing belt; an angle adjustment mechanism is provided at the tail of the arc-shaped vascular clamp; the angle adjustment mechanism comprises a fixing plate, one side of the fixing plate is detachably connected with an adjustment member, and the other side is detachably connected with a locking member and a gasket. The adjustable angle wearable arm vascular clamp and a method for using the same of the present invention have a simple structure and are easy to use. On the basis of inheriting the advantages of the existing wearable arm vascular clamp, the advantages are improved, and an angle adjustment mechanism is provided at the tail of the arc-shaped vascular clamp, so that the arc-shaped vascular clamp is suitable for both flat incisions and lateral incisions or upper incisions.

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.

The utility model discloses a novel coronary sinus balloon sheathing canal, which belongs to the technical field of medical instruments and comprises a main sheathing canal body, the lower end of the main sheathing canal body is communicated with an elastic hose, one end of the elastic hose far away from the main sheathing canal body is communicated with a sheathing canal head, and the outer side wall of the sheathing canal head is provided with a balloon mechanism. A hemostasis valve is arranged at the upper end of the main sheath tube body, a contrast agent injection valve tube is arranged on the side, close to the hemostasis valve, of the main sheath tube body in a communicated mode, a bending adjusting mechanism is arranged on the main sheath tube body, and one end of the bending adjusting mechanism is fixedly connected with the inner wall of the sheath tube head. According to the coronary sinus balloon sheath tube, by arranging the bending adjusting mechanism, the elastic hose and the sheath tube head, the bending direction of the sheath tube head can be adjusted, the coronary sinus balloon sheath tube can be conveniently and accurately inserted, the proximal end of the coronary sinus can be blocked by arranging the balloon mechanism, the risks of vein tearing and vascular dissection can be obviously reduced, and operation steps are simplified.

The utility model relates to the technical field of medical instruments, in particular to a blood vessel anastomosis device which comprises a pair of triangular anastomosis devices, through holes are formed in the anastomosis devices, and anastomosis rings are arranged in the through holes. Coordination needles and coordination holes which are matched with each other are arranged on the opposite faces of the pair of anastomators in a staggered mode, and anastomosis forceps are arranged in a mode of being matched with the anastomators. An embedding device is arranged on the anastomosis forceps, a triangular embedding groove matched with the anastomat is formed in the embedding device, the embedding device is further arranged to be of a telescopic structure, and an adjusting mechanism capable of adjusting the distance between two forceps rods of the anastomosis forceps is arranged at the rotating connecting position of the anastomosis forceps in a matched mode. The end-to-end anastomosis and end-side anastomosis of the blood vessel can be simultaneously adapted, a 45-degree included angle between a donor blood vessel and a receptor blood vessel can be formed in the end-side anastomosis, the design of hemodynamics is met, the effect of blood vessel anastomosis is effectively improved, and the risk of various postoperative complications is reduced.

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 invention relates to the technical field of blood treatment equipment, in particular to a blood post-treatment cup distribution system and method.The blood post-treatment cup distribution system comprises a shell, a blood collection tube bottle clamping mechanical arm is installed in the shell, a blood collection tube code reading module is installed on the blood collection tube bottle clamping mechanical arm, and a blood collection tube cover opening module is installed at the end of the blood collection tube bottle clamping mechanical arm; a blood collection tube jig is arranged on the lower portion in the shell, and a serum liquid level recognition module is arranged on one side of the blood collection tube jig. According to the blood post-treatment cup distribution system and method, through application of automatic equipment such as the blood collection tube bottle clamping mechanical arm and the pipetting mechanical arm, operations such as rapid clamping, moving, uncovering, code reading, pipetting and sub-packaging of blood collection tubes and cryopreservation tubes are achieved, the treatment speed is greatly increased, and the high-throughput treatment requirement is met. Through accurate identification of the blood collection tube code reading module and the cryopreservation tube code reading module and accurate measurement of the serum liquid level identification module, the accuracy of sample information and the accuracy of the branch tube quantity are ensured, and the reliability of a processing result 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 provides a tissue clamp for blood vessels, comprising: a clamping assembly, the clamping assembly comprises a clamping piece, the clamping piece is provided with a through space in a surrounding manner, and the clamping piece is used for clamping the blood vessels passing through the through space; the interior of the clamping piece is a hollow cavity, and the clamping piece can deform along with the pressure intensity of the hollow cavity; a through cavity is formed in the pressure maintaining device, one end of the through cavity is communicated with the hollow cavity, and the other end of the through cavity can be closed; the pressurizing device comprises a pressurizing channel, and the pressurizing device is detachably connected with the pressure maintaining device; when the pressurizing device is connected with the pressure maintaining device, the other end of the through cavity is opened, and the through cavity is communicated with the pressurizing channel; and when the pressurizing device and the pressure maintaining device are disconnected, the other end of the through cavity is closed. The problem that the clamping force of the tissue clamp for the blood vessel cannot be adjusted is solved, and meanwhile the situation that the tissue clamp for the blood vessel shields the operation view in the clamping process is avoided.

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 invention discloses a blood vessel clamp holder for blood vessels, and relates to the technical field of medical auxiliary instruments. The two clamping arms are symmetrically arranged in the sleeve, and the clamping ends of the clamping arms penetrate through the left side wall of the sleeve and then are arranged on the left side of the sleeve. The clamping assembly is arranged in the sleeve; the driving assembly is arranged in the sleeve, and the driving assembly is arranged on the right side of the clamping assembly; according to the blood vessel clamping device, the two clamping arms can be properly adjusted only by rotating the threaded rod, the blood vessel is stably clamped by the two clamping arms, the falling phenomenon is avoided, the clamping force between the two clamping arms can be controlled, and the phenomenon of blood vessel rupture can be avoided.

The utility model discloses a ligation clip which comprises a lower arch-shaped arm, a hinge and an upper arch-shaped arm, the lower arch-shaped arm is rotatably connected with the upper arch-shaped arm through the hinge, the inner wall of the upper arch-shaped arm is provided with a trapezoidal groove, the outer wall of the upper arch-shaped arm is provided with an upper positioning boss, the outer wall of the lower arch-shaped arm is provided with a lower positioning boss, and the outer wall of the lower arch-shaped arm is provided with a locking groove. A lock head is arranged on the outer wall of the upper arch-shaped arm, the lock groove is movably connected to the inner wall of the lock head, the lower arch-shaped arm comprises the lock groove, a lower positioning boss, an arc-shaped pressing strip and anti-skid teeth, the upper arch-shaped arm comprises an upper positioning boss, the lock head, a trapezoidal groove and an anti-skid groove, and the anti-skid teeth are meshed with the anti-skid groove. By means of the structure, the tissue blood vessel cannot move and slip in the axial direction of the tissue blood vessel when the tissue blood vessel is clamped and closed, meanwhile, the anti-skid capacity is further improved through meshing of the anti-skid teeth and the anti-skid grooves, the anti-skid function is achieved in the axial direction and the radial direction, and the tissue needing to be closed can be evenly stressed.

The invention relates to an interlayer cavity separation method and device based on a clustering algorithm, equipment and a medium, and the method comprises the steps: extracting a vascular interlayer inner diaphragm model and a target vascular model based on a to-be-processed CTA image; converting the vascular interlayer inner membrane model into a grid model, and extracting a first surface patch and a second surface patch which are continuous and have the largest area; aiming at each voxel grid on the target blood vessel model, determining a grid point, closest to the first surface patch and the second surface patch, of the voxel grid; direction vectors of the voxel grids and the grid points are calculated, and feature vectors are constructed by the direction vectors and the space coordinates of the grid points; the feature vectors corresponding to the voxel grids are subjected to clustering analysis, an interlayer separation result is obtained, the problem that time and labor are consumed by manual labeling is solved, meanwhile, the method is clear in principle, and interlayer separation precision is improved.

The utility model relates to a vascular clamp capable of preventing blood vessels from being punctured and detained, and belongs to the technical field of medical instruments. Comprising a first clamping arm and a second clamping arm, and the tail end of the first clamping arm and the tail end of the second clamping arm are provided with a pressing part and a bearing part respectively; the pressing part extends from the tail end of the corresponding first clamping arm to bend towards the second clamping arm; the bearing parts extend from the tail ends of the corresponding second clamping arms to bend towards the first clamping arms; the overall length of the first clamping arm and the overall length of the second clamping arm have a length difference, a preset elastic arm section is arranged on the first clamping arm and / or the second clamping arm, and the elastic arm section generates elastic deformation when the vascular clamp is closed. According to the utility model, the risk that tissues are punctured or torn due to stress concentration is avoided, and the risk that the tissues fall off due to passive opening is reduced.

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.