35results about How to "Avoid surgical failure" patented technology

The invention provides a mistaken-percussion-proof safety mechanism for an anastomat. The mistaken-percussion-proof safety mechanism for the anastomat comprises a fixed handle and a movable handle, wherein a clamping piece is arranged at the upper part of the movable handle, and a percussion locking mechanism is arranged on the fixed handle at the front side of the movable handle and is matched with the clamping piece; when the movable handle rotates forwards to be closed, the clamping piece is locked by the percussion locking mechanism; an unlocking mechanism for separating the clamping piece from the percussion locking mechanism is also arranged on the fixed handle. The invention also provides an anastomat, which comprises the mistaken-percussion-proof safety mechanism. The movable handle can be locked and cannot automatically reset after being closed for the first time, and the handle is in a closed state, so that the second percussion can be carried out after the handle is unlocked by operating the unlocking mechanism, and thus the failure of operation caused by misjudgment and mistaken percussion of doctors is avoided, and the correctness of operation sequence is ensured; meanwhile, appropriate tissues can be selected to be closed and cut by the doctors through a reset mechanism.

The invention relates to a novel lung tumor locating needle. The novel lung tumor locating needle comprises a puncture needle, anchoring locating needles, a locating line and a pushing device, wherein the puncture needle is composed of a puncture needle cannula and a puncture needle handle, the pushing device comprises a pushing tube and a pushing tube handle, the pushing tube is arranged in the puncture needle cannula, the far end of the pushing tube abuts against the near ends of the anchoring locating needles, the width of the near ends of the anchoring locating needles is larger than or equal to the outer diameter of the pushing tube, the far end of the locating line is connected with the near ends of the anchoring locating needles, the locating line extends out of the exterior of the pushing device from the interior of a tube cavity of the pushing tube, the far end of the locating line is provided with multiple colored bands with different colors, and the length of each colored band ranges from 3 mm to 15 mm. According to the novel lung tumor locating needle, the functions of determining lesion localization and measuring the depths of lesions are achieved simultaneously, the lung or parts of the lung can be lifted up, excision of the lesions is convenient for a surgeon, and the depths of the lesions can be measured during an operation.

The invention provides an anchor for lifting prostate tissue. The anchor comprises a first anchor body, a second anchor body and a fixed thread, wherein the first anchor body and the second anchor body are connected by virtue of the fixed thread; one end of the first anchor body is provided with a fixed tube and the other end of the first anchor body is provided with an arc-shaped elastic sheet; an arc line of the arc-shaped elastic sheet is tangent with the central axis of the first anchor body, and the arc-shaped elastic sheet is bent in a direction opposite to the direction of the fixed thread; the second anchor body is a V-shaped elastic clamp which is such defined that a first clamping arm and a second clamping arm are fixedly connected by virtue of an end; locking teeth A and locking teeth B, which are same in structure, are arranged on the opposite side faces of the first clamping arm and the second clamping arm; a locking tooth buckle is defined by the locking teeth A and the locking teeth B; one end of the fixed thread is fixedly arranged in the fixed tube and the other end is clamped and fixedly arranged in the locking tooth buckle; according to the anchor, the first anchor body can automatically form a self-locking state when released, and by virtue of the locking tooth buckle which is arranged on a clamping face of the second anchor body and has functions of unidirectional guiding and reverse locking, the phenomenon that an operation becomes failed in the case that the clamped fixed thread slips is avoided.

The invention belongs to the technical field of medical apparatus and instruments, and discloses a cardiovascular intervention curer. The cardiovascular intervention curer comprises a puncture device and a fixing device, wherein the puncture device comprises a needle tube, a diaphragm bursting tube is arranged at the top of the needle tube, a needle head is installed at one end of the diaphragm bursting tube, which extends out of the needle tube, a push rod is installed in the needle tube, a push plate is arranged at one end of the push rod, a rubber plug is fixedly installed at the other end of the push rod, a through hole is formed in the rubber plug, an elastic seal diaphragm is arranged on the through hole, a wire guiding hole is formed in the push rod, a catheter is connected with the top of the needle tube, the catheter is connected with a collection bag, a flow control valve is arranged on the catheter, the fixing device comprises a base seat and an upper arc plate installed on the base seat, an arc-shaped groove is formed in the top of the base seat, a hand holding portion is arranged in the middle of the base seat, a fixing portion is arranged at the bottom of the base seat, and two fixing bands are respectively arranged on two sides of the fixing portion. The puncture device is fixed on the fixing device, and a doctor can hold the fixing device in hand for puncturing and then fixes the fixing device, and therefore the doctor can conveniently and accurately operate the cardiovascular intervention curer, and collects blood in the collection bag, and furthermore an operation surface of the doctor can not be polluted.

The invention discloses a delivery device used for an interventional therapy shape memory support. The delivery device comprises a handle and a conduit, wherein the conduit consists of an inner core and a sheathing canal which are sheathed, and the remote end of the inner core and the sheathing pipe are matched for placing the support; the handle consists of a hollow tubular shell, a speed regulation assembly arranged at the near end of the shell, and a screw rod arranged in the shell; the speed regulation assembly is of a planetary gear structure and comprises a sun gear, an outer gear ring and a plurality of planetary gears, and the outer gear ring and the near end of the screw rod are fixed; the remote end of the shell is connected with the near end of the inner core; the near end of the sheathing pipe is further connected with a fastener structure capable of being meshed with the screw rod. The speed regulation assembly has a two-level speed regulation function, and can be used for accurately regulating the release position and speed of the support, and also recovering the support to the delivery device so as to perform repositioning if displacement exists in the release process.

Disclosed is an orthopedic vertebra reduction device which consists of a reduction nut (1), a reduction rod (2) and a fixed rod (3). The back end of the fixed rod (3) is provided with screw thread which is matched with the reduction nut (1) and the side surface of the front end of the fixed rod (3) is provided with a plurality of ratchets. The reduction rod (2) is sleeved on the fixed rod (3); the front end of the reduction rod (2) is provided with gears. The invention is used to restore the isthmic spondylolisthesis, the invention can be used singly or used in cooperation with a pedicle of vertebral arc nail pulling method, and the operation can achieve better effect especially when the pedicle of vertebral arc nail path is damaged or when a patient suffers from osteoporosis. The invention which is simple in operation and powerful in reduction can complement the defect of the reduction method of the traditional orthopedic vertebra reduction device.

The invention discloses the electrotome handle, lighting electrotome handle, vacuum suction tube, vacuum pump of an attraction electrotome. In the hollow electrotome handle, a power circuit of the electrotome is arranged in the electrotome handle or the wall of the electrotome handle; an attraction opening is formed the tail of the electrotome handle; a conducting blank pipe is provided with a hollow channel, and the rear end of the conducting blank pipe is arranged in the front of the electrotome handle; and the rear end of the conducting blank pipe is connected with the power circuit of the electrotome, and the front end of the conducting blank pipe extrudes out of the electrotome handle and forms a thin tip suction inlet forward. The electrotome provided by the invention absorbs smoke generated in the process of operation uninterruptedly, and during the operation on a narrow and deep area, the electrotome can penetrate into the area to absorb the generated smoke, liquid impurities and the like close to the electrotome completely in time and discharge the smoke, the liquid impurities and the like to the outside or a sterilizer without blocking the negative pressure suction pipe and the negative pressure pump; and in an operation area of a narrow dark area, an illuminating lamp on the electrotome can also illuminate conveniently and clearly. In addition, an electrotome head, the electrotome handle and the negative pressure pump can be disassembled conveniently and quickly to be replaced and disinfected, and a filter screen and a filter can be replaced conveniently.

The invention relates to the technical field of operating beds and discloses an operating bed for a gynecological operation. The operating bed comprises a left side base, a connecting block is fixedlymounted at the bottom of the left side base, a rotating block is fixedly mounted at the bottom of the connecting block, connecting plates are fixedly mounted on both sides of the bottom of the rotating block, a connecting rod is fixedly mounted between the two connecting plates and movably sleeved with a roller, supporting sleeves are fixedly mounted on the top of the left side base, and moving blocks are movably mounted in inner cavities of the supporting sleeves. According to the operating bed for the gynecological operation, through arrangement of a first hydraulic rod, movable handles aredriven to rotate through expansion and contraction of the first hydraulic rod, so that automatic adjustment of the distance between two leg fixing plates is achieved, more convenience is provided fora doctor to adjust an observation view field according to operation situations, the stability of the operation is greatly ensured, and the practicality is improved.

The invention provides an auditory-evoked potential testing device which comprises a signal output device, a first encoder, a first coil, a second coil, a second encoder and an electrode group. The signal output device is used for outputting electric signals; the first encoder is used for receiving and encoding the electric signals; the first coil is used for receiving and transmitting output signals of the first encoder; the second coil is coupled with the first coil in a non-contact induction mode so as to receive signals of the first coil; the second encoder is connected with the second coil so as to receive output signals of the second coil; the electrode group is connected with the second encoder so as to receive output signals of the second encoder and comprises a stimulation positive electrode, a stimulation negative electrode and a ground wire electrode, and current circuits can be formed by electric pulses emitted by the electrode group; target positions can be electrically stimulated, and the tail end of the integrally elongated stimulation positive electrode is expanded to form a sphere for a spherical electrode arranged in a cochlea. The auditory-evoked potential testing device has the advantages that conditions of auditory pathways of patients can be judged by the aid of the auditory-evoked potential testing device before surgery is carried out, and accordingly surgical risks and the surgical cost can be reduced.

The invention relates to a flip-over electric ring apparatus which comprises a motor, an ejector sleeve and a U nail top ring. The motor is connected to or makes contact with the ejector sleeve and is used for pushing the ejector sleeve forwards; the ejector sleeve is connected to or makes contact with the U nail top ring and is used for pushing the U nail top ring forwards. The motor is adopted for driving, pushing force to a U nail is adjustable and stable, the phenomenon that due to excessive force, the U nail clamps prepuce tissue to be broken, and then surgery fails is avoided, and meanwhile the phenomenon that due to too small force, nail reversing is not thorough, and then bleeding cannot be stopped can also be avoided, adjustment of the pushing distance and speed is conducted through a switch, and the flip-over electric ring apparatus can be adapted to different surgical objects and surgical environments; in addition, due to the fact that driving is conducted through the motor, a hand-operated driving device and an actuator structure do not need to be additionally arranged, and the asynchronous risk brought by two driving structures is avoided.

The invention discloses an interventional catheter auxiliary device for emergency nursing, and relates to the field of medical instruments, the interventional catheter auxiliary device comprises an auxiliary seat main body, the two sides, away from each other, of the auxiliary seat main body are provided with matched tightening bandages, the top of the auxiliary seat main body is provided with a visible through hole, and a driving friction roller and a clamping friction roller are arranged in the visible through hole, and matched guide pipe clamping grooves are formed in the circumferential side of the driving friction roller and the circumferential side of the clamping friction roller. Through the arrangement of a tightening bandage, a driving friction roller, a clamping friction roller, a rapid adjusting assembly, a fine adjusting assembly and a movable clamping assembly, the device can be fixed to the body of a patient, a catheter can be accurately and stably inserted into a lesion position, accurate operation is guaranteed, and through the arrangement of a rotation stopping assembly, the catheter can be accurately and stably inserted into the lesion position. And the position of the catheter can be fixed, so that the situation that the catheter displaces to cause operation failure during operation is prevented.

The invention relates to the technical field of medical instruments, and discloses a micro guide wire with a nickel-titanium hose, the hose body is inserted into a blood vessel, and the head end of the hose enters the blood vessel, so that the micro guide wire is more durable and not easy to deform in complex nerve and blood vessel intervention; vascular injury and operation failure caused by shadow change of an instrument in an operation are avoided to a great extent, the problems that the outer layer of the far end of the core wire generally only has a single winding wire, the flexibility and durability are poor, and the core wire is more durable and can deform easily in complex nerve and blood vessel intervention are avoided, and the success rate of the operation is increased; the push tube is pushed, slides at the right end of the core wire body rod body and drives the sliding block to slide on the surface of the connecting rod, so that the sliding block extrudes the net-shaped woven ball body to bulge, the outside of the net-shaped woven ball body is tightly attached to the inside of a blood vessel, and tortuosity and stenosis of the blood vessel, such as intracranial blood vessels and difficult operation of feeding a micro guide wire to the far end of the blood vessel, are avoided; complications are easily caused, and the operation effect is improved.

The invention discloses a flexible ureteroscope ruler, a manufacturing method thereof and a purpose thereof. The flexible ureteroscope ruler comprises at least a set of transparent thin sheets. Ureteroscope sheath superimposed images and flexible ureteroscope body working-area synthesis images which are connected together are arranged on the set of transparent thin sheets according to different shooting ratios respectively. The ureteroscope sheath superimposed images and the flexible ureteroscope body working-area synthesis images are obtained in the mode that a ureteroscope sheath of a flexible ureteroscope serves as the arrangement standard and all images shot when a flexible ureteroscope body of the flexible ureteroscope is bent towards the same sides in the different-extending-length states are synthesized. The flexible ureteroscope ruler is used for simulating the area where the flexible ureteroscope can reach in the kidney pelvis and the kidney calyx of the kidney and pre-judging the feasibility of a flexible ureteroscope operation, and has the advantages of being noninvasive, simple and visual; the success rate of flexible ureteroscope operation performing is increased, and use of flexible ureteroscope resources is optimized.

The invention relates to a safety device for an anastomat. The safety device comprises a fixed handle, a movable handle, a safety lever, a safety pushing button and a support handle, wherein the safety lever is fixedly connected with the safety pushing button and the safety lever and the safety pushing button are slideably arranged at one end of the support handle, the other end of the support handle is fixed on the fixed handle, and a clamping groove where the safety lever can be inserted in a matching manner is arranged at one end of the movable handle, which is abutted with the support handle. The safety lever can move along a prescribed trajectory in a certain angle range, and can open or close the movable handle after reaching a certain position. The safety device for preventing the anastomat from abnormally firing can prevent operation failure caused by accident or abnormal firing, is simple in structure, convenient for assembly and safe in use, and plays an important role in correctively using the anastomat, thereby being suitable for popularization and application.

The invention discloses a surgical robot device. The device comprises: a three-dimensional scanner used for scanning the body of a patient to obtain a scanned image; a control device used for generating a three-dimensional model of the body of the patient according to the scanning image, generating coordinates of a focus point according to position information of the focus point in the three-dimensional model and generating a puncture path according to the coordinates; a mechanical arm used for performing the puncture path; and a puncture device which is fixedly combined to the end of the mechanical arm and used for clamping a puncture needle, wherein the puncture device comprises an adjustable component capable of adjusting puncture force, and the control device can adjust the puncture force through the adjustable component. According to the surgical robot device, the characteristics of fine action and accurate positioning of the mechanical arm are used for assisting a surgeon in surgical operation, the surgical precision and safety can be improved, the working intensity of the surgeon can be relieved, and surgical failures caused by fatigue are avoided.