37results about How to "Surgical operation safety" patented technology

The invention relates to a thoracocentesis needle for drainage of pleural effusions, particularly relates to a thoracocentesis needle with a light source and belongs to the technical field of medical apparatus structures. The thoracocentesis needle comprises a puncture needle head and a drainage tube connected with the needle head. The thoracocentesis needle is characterized in that a luminous source is arranged on the outside of the tube wall of the puncture needle head, and a control unit is arranged on the drainage tube to prevent air from entering the thoracic cavity to cause aerothorax. By means of the luminous source arranged on the outer side wall of the puncture needle head, an operator can observe the extraction condition of the pleural effusions; due to the control unit on the drainage tube, air can be prevented from entering the thoracic cavity to cause aerothorax; meanwhile, the depth of the puncture needle head into the thoracic cavity is convenient to control, the operation is accurate and safe, and the thoracocentesis needle is convenient and practical.

A clamping hook of a surgery linear cutting anastomat achieves that when a nail container assembly and a nail anvil assembly are clamped by the clamping hook, relevant portions among the nail container assembly, the nail anvil assembly and the clamping hook contact in a cambered mode, produced elastic deformation does not cause oversize gaps of far end portions, and an anastomosis nail is guaranteed to be correctly bent and formed; the clamping hook can control the nail container assembly and the nail anvil assembly to produce to-be-anastomosed tissue loosening motion, to-be-anastomosed tissue holding motion and to-be-anastomosed tissue clamping motion, and operation procedures are conveniently conducted; a baffle on the nail container frame blocks a door-shaped gap of an outer shell far end of the clamping hook, the door-shaped gap of the outer shell of the clamping hook does not hurt the to-be-anastomosed tissue, and operation procedures are enabled to be safe.

A clamping hook of a surgery linear cutting anastomat achieves that when a nail container assembly and a nail anvil assembly are clamped by the clamping hook, relevant portions among the nail container assembly, the nail anvil assembly and the clamping hook contact in a cambered mode, produced elastic deformation does not cause oversize gaps of far end portions, and an anastomosis nail is guaranteed to be correctly bent and formed; the clamping hook can control the nail container assembly and the nail anvil assembly to produce to-be-anastomosed tissue loosening motion, to-be-anastomosed tissue holding motion and to-be-anastomosed tissue clamping motion, and operation procedures are conveniently conducted; a baffle on the nail container frame blocks a door-shaped gap of an outer shell far end of the clamping hook, the door-shaped gap of the outer shell of the clamping hook does not hurt the to-be-anastomosed tissue, and operation procedures are enabled to be safe.

The invention relates to a guide device and guide method used for minimally-invasive deep brain surgery, and belongs to the technical field of minimally-invasive brain surgery equipment. The problem that existing devices are liable to cause damage to brain tissue of patients is solved. The guide device comprises a mask guide board, a guide support, a guide needle and a retraction catheter, whereinthe mask guide board can be fixedly attached to skin of the head of a patient, the guide support is installed on the mask guide board, and the mask guide board and the guide support are detachably and fixedly connected; the guide needle can enter the brain in a guide direction of the guide support; and the retraction catheter can reach a preset position in the brain along the guide needle. According to the guide device and guide method used for the minimally-invasive deep brain surgery, shaking of the retraction catheter in a process of entering the brain is prevented so that not only can thedegree of damage to the brain tissue in an insertion process of the retraction catheter be reduced, but also the accuracy of an insertion position of the retraction catheter in the brain can be further improved. Meanwhile, by means of conical design of the front end of a core of the retraction catheter, damage to the brain tissue in the entering process of the retraction catheter is further reduced, and the position is more accurate.

The invention relates to a selective tissue removing directional positioning drawing device. The selective tissue removing directional positioning drawing device includes a swinging positioning rod, a support and a base for being arranged on an apparatus; a positioning column hole is formed in the base, a positioning column supported by an elastic member is arranged in the positioning column hole formed in the base; a U-shaped groove is formed in the support which is inserted in the base, and is used for allowing the limited positioning column to stretch out of the base and be pressed against a positioning groove formed in the bottom of the support; the swinging positioning rod includes a bottom plate and two side plates which form a longitudinal channel for allowing a purse thread to pass; at least two front thread grooves are formed in the front end of the swinging positioning rod, and at least two back thread grooves are formed in the back end of the swinging positioning rod; the swinging positioning rod is hinged in the U-shaped groove of the support; a swinging seat for bearing the swinging positioning rod is formed in the bottom of the U-shaped groove of the support; and side walls of the U-shaped groove of the support limit the two side plates of the swinging positioning rods. The selective tissue removing directional positioning drawing device is reasonable in structure, is easy to demount, is reliable in positioning, and can easily lead and tie the purse thread so as to allow the drawing direction of the purse thread to be perpendicular to an anal tube and an anal wall.

The invention discloses a laser surgical workstation operation system for clinical disease treatment, which includes an equipment integrated work trolley, a laser placement frame, a laser work host, a high-definition surgical field camera, a panoramic camera, a laser parallel pedal control device assembly, and a host loader. The base plate and the host of the workstation management system, the bottom of the equipment integrated work trolley is provided with a host carrying plate, the two sides of the host carrying base plate are installed with two side guard plates, and the top supports of the two side guard plates are fixed with two The trolley column, the top support of the trolley column is installed with a top bearing plate. The beneficial effect is that the present invention provides clinicians with more systematic and comprehensive learning and training, more accurate and safer operation and application for laser surgery, and meets the needs of the operating room and multiple clinical departments for the treatment of various diseases. Improve the utilization rate and turnover rate of equipment, reduce the idle rate of equipment and the cost of repeated purchase, and improve the economic benefits of equipment.

The invention relates to a microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making, comprising a flap lifting part and a handle, wherein the flap lifting part is fixedly arranged on the upper end of the handle; the flap lifting part includes a straight rod section, an arc section and a flat spade section which are manufactured integrally and connectedly; the lower end of the straight rod section is coaxially connected with the upper end of the handle, the upper blunt angle turning of the straight rod section is connected with the arc section, the section diameter and conical degree of the arc section become smaller gradually, the terminal end of the arc section is connected with the flat spade section with oval tips, and the cross section of the flat spade section is centrally thick and peripherally thin in shape. The microscopic flap lifting device disclosed by the invention can thoroughly separate corneal stroma flaps and reduce corneal flap damage, corneal flap dissociation and other complications during separation process, and is helpful for completely lifting the flap; meanwhile, the oval flat chisel section can reduce separation difficulty caused by opaque bubble layer (OBL) and reduce the damage on corneal tissue caused by repeated operation, and is helpful for post-operative wound recovery.

The invention relates to a lens separator for all-femtosecond microsurgery, which comprises a separating shovel, a handle and an incision hook. The separating shovel and the incision hook are coaxially fixedly mounted at two ends of the handle; the separating shovel consists of a straight rod section, an arc section and a round shovel section which are integrally connected, the lower end of the straight rod section and the upper end of the handle are coaxially fixedly mounted, the diameter of the upper portion of the straight rod section is gradually reduced while the upper portion of the straight rod section turns and is connected with the arc section, an included angle between the straight rod section and the arc section is an obtuse angle, the cross section of the arc section is in the shape of a flat ellipse, the other end of the arc section is thinned gradually, the taper of the other end of the arc section is gradually reduced, furthermore, the terminal of the other end of the arc section is connected with the round shovel section with a circular tip, and the center of the cross section of the round shovel section is thick while the periphery of the cross section of the round shovel section is thin; and the incision hook comprises a straight rod section and a bent tip section. Surgery can be safer and smooth by the lens separator for all-femtosecond microsurgery, a matrix lens can be thoroughly separated, side effects including that the matrix lens is damaged, remained and the like in a separation process are reduced, the lens separator is favorable for completely taking out the matrix lens, simultaneously, injury to cornea tissues of a patient due to repeated operation is relieved, and postoperation recovery of wound is benefited.

A bipolar electrode for a resectoscope, comprising two metal sleeves (12), an insulating casing (11), a twin-core conductor wire (19), a semi-ring positive electrode (13), a loop electrode (14), two ceramic insulating tubes (15) and terminals (18). The front sections of the two metal sleeves (12) are branched and arranged at a distance; and the rear sections thereof are arranged to abut to each other side by side, and the insulating casing (11) is provided at the periphery of the rear section. The front ends of the two metal sleeves (12) are fixedly connected to the two ends of the semi-ring positive electrode (13) by means of the two insulating tubes (15) respectively, and the tail ends thereof are provided with the terminal (18). One conductor wire in the twin-core conductor wire (19) is electrically connected to the metal sleeve (12), and the other conductor wire penetrates into the metal sleeve (12) and is electrically connected to the positive electrode (13) at the front end. The loop electrode (14) comprises two metal tubes which are respectively arranged at the front parts of the two metal sleeves (12) and electrically connected to the metal sleeves (12), and the exterior of the rear sections of the two metal tubes of the loop electrode (14) and the front sections of the metal sleeves (12) are wrapped in an insulating layer sleeve (31). The bipolar electrode is safe and reliable, and has an improved operation effect.

The invention belongs to the technical field of medical instruments, and discloses a minimally invasive scalpel for surgery, which includes a knife head and a handle. A knife edge is formed at the joint of the handle, and an endoscope is arranged on the knife head. It can reduce the tissue damage of the patient. At the same time, the endoscope and the negative pressure suction port are integrated on the scalpel, so that the accuracy of the operation is improved, the operation effect is good, the tissue damage is less, and the injury of the scalpel to the medical staff can be avoided. It allows doctors to conduct real-time visual monitoring during the operation process, making the operation more accurate, safe and reliable, and it can also timely suck out the damaged lesions or excess tissue in the patient's body.

The invention provides an improved pancreas intestine bundling and embedding inosculating device relating to a pancreas intestine inosculating appliance. The improved pancreas intestine bundling and embedding inosculating device is more simple, accurate, stable and safe to operate, greatly saves the operation time and can remarkably reduce complicating diseases and operation cost. The improved pancreas intestine bundling and embedding inosculating device is provided with a pancreatic tissue bundling and annular binding fixed belt and an intestine overturn fixed ring; the upper surface of the pancreatic tissue bundling and annular binding fixed belt is provided with a convex hook distributed along the longitudinal direction of the fixed belt; the upper part of the convex hook is an inclined surface; the longitudinal direction of the convex hook is vertical to the longitudinal direction of the pancreatic tissue bundling and annular binding fixed belt; the lower surface of the pancreatictissue bundling and annular binding fixed belt is provided with at least one row of specula distributed along the longitudinal direction of the fixed belt; the intestine overturn fixed ring is an elastic fixed ring; and the inside edge at the bottom of the intestine overturn fixed ring is provided with a convex ring which is inosculated with the pancreatic tissue bundling and annular binding fixed belt.

The invention belongs to the technical field of medical instruments, and relates to a combined type operation excision device for pterygium. The main structure of the device comprises a cornea fixing device, a linear knife fixing device, a linear knife and a linear knife threading device. The main structure of the cornea fixing device comprises a cornea fixing ring, a first handle, a groove, fixing teeth, a connecting shaft and a track groove, the fixing teeth are of a corrugated structure and are used for fixing the eyeball, the opening end of the track groove is communicated with the groove, the main body structure of the linear knife fixer comprises a semicircular fixer, a second handle, a first buckle groove, a second buckle groove, a third buckle groove and a fourth buckle groove, the linear knife is a linear knife with teeth on one side, and the linear knife threading device is of a medical arc-shaped metal tube structure. The arc adapts to the radian of the cornea; and the cutting direction and the cutting depth are controllable, surgical operation difficulty is reduced, cornea injury caused by improper surgery is avoided, eyeballs are conveniently fixed, surgical operation safety is improved, the overall structural design is simple and ingenious, and operation and popularization are convenient.

The invention relates to an optical-display uterine lifting device which is mainly applicable to gynecological pathological examination and hysterectomy. The optical-display uterine lifting device comprises a hollow handle, an inner pipe, an outer pipe and a spherical seat, and is characterized by being further provided with a light source connecting seat, an optical fiber, a fixing sleeve and atleast one waist-shaped groove, wherein the light source connecting seat has a hollow structure and is positioned at one end of the inner pipe; the waist-shaped groove is arranged on the inner pipe and is positioned in the middle of the inner pipe; the optical fiber passes through the waist-shaped groove and is fixed with the outer surface of the inner pipe; one end of the optical fiber is arranged in the inner pipe, and the other end of the optical fiber is arranged between the spherical seat and the fixing sleeve; the two ends of the inner pipe extend outside the two ends of the outer pipe; one end of the inner pipe is positioned in the spherical seat, and the other end of the inner pipe is arranged in the light source connecting seat; and the light source connecting seat, the handle, the outer pipe and the spherical seat are sequentially arranged on the same axis. The optical-display uterine lifting device is reasonable and simple in structural design, is capable of lifting the uterus in place, and is safe and convenient in surgical operation, good in effect and wide in application scope.

The invention belongs to the technical field of medical devices, and relates to a combined surgical resection device for pterygium. The main structure includes a corneal fixing ring, a first handle, a groove, a fixed tooth, a connecting shaft, and a track groove. The fixed tooth is a corrugated structure, which is used to fix the eyeball. The main structure of the device includes a semicircular fixer, a second handle, a first buckle groove, a second buckle groove, a third buckle groove, and a fourth buckle groove. The linear knife is a linear knife with teeth on one side. The linear knife penetrator is a medical curved metal tube structure, the arc is used to adapt to the curvature of the cornea; the cutting direction and cutting depth are controllable, which reduces the difficulty of operation and avoids corneal damage caused by improper operation. The safety of operation, the overall structure design is simple and ingenious, easy to operate and popularize.