19 results about "Vascular clamp" patented technology

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 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 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 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 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 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.

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.

This utility model relates to a hemostatic device for surgery, belonging to the field of medical device technology. It solves the problem in existing technologies where metal vascular clamps cannot be bent, obstructing the surgical field of vision and affecting surgical procedures. This utility model includes a tourniquet and a binding structure. The tourniquet can be connected to the binding structure. The tourniquet can be infinitely adjusted and tightened around the blood vessel. The binding structure is used to lock the tourniquet. The binding structure includes a first connecting seat and a cable tie. The cable tie can pass through the first connecting seat and wrap around the tourniquet. The tourniquet of this utility model can be infinitely adjusted and tightened around the blood vessel. Pulling the free end of the cable tie body tightens the cable tie sleeve, connecting the cable tie body to the tourniquet and locking the tourniquet. The locking teeth connect with the connecting groove, preventing the inner diameter of the cable tie sleeve from increasing, thereby preventing changes in the inner diameter of the occlusion loop and maintaining vascular occlusion.

The utility model relates to the technical field of medical instruments, and discloses a vascular gripper for vascular surgery, which comprises an adjusting cylinder, a connecting block is slidably arranged in the adjusting cylinder, and connecting frames are rotatably mounted on two sides of the connecting block respectively; clamps are arranged on the sides, close to each other, of the two sets of the mounting grooves, inserting blocks inserted into the mounting grooves are arranged on the backs of the clamps, positioning grooves are formed in one sides of the inserting blocks, and positioning blocks matched with the positioning grooves are mounted at the bottoms of the mounting grooves. Compared with the prior art, the blood vessel clamp has the advantages that a blood vessel is fixedly clamped through the two sets of clamps, and force does not need to be applied to the clamp all the time by hands in the operation process; the clamp is convenient to replace in the mounting groove, clamping grooves of various sizes can be formed in the clamp according to the existing recorded blood vessel size range, and a clamping device provided with the clamping grooves of the appropriate size can be selected and used in the operation process to clamp blood vessels of different tube diameters.