45results about How to "Shorten surgery time" patented technology

A method and apparatus for making a size measurement within an intervertebral space by placing an expandable and contractible device into the intervertebral space, expanding the device, measuring a size characteristic of the space, contracting the device and then removing it. The measurement may be accomplished by an external x-ray or other imaging device imaging the expanded device in situ or by mechanically operated devices. An expansion and contraction mechanism such as fluid containing bladder or mechanically shifted members expands the device which later contracts in a controlled manner to the contracted size. An apparatus and method is provided for the measuring of the intervertebral space at a controlled distraction force. The apparatus includes an expandable device for providing a measurement within the intervertebral space and facilitating the measurement of the angulations of the lordotic curve of the intervertebral space.

The invention belongs to the technical field of medical instruments and particularly relates to the technical field of interventional instruments in third-class medical instruments, in particular to a transcatheter heart annuloplasty system. The transcatheter heart annuloplasty system comprises a forming ring assembly, wherein the forming ring assembly comprises a macromolecular braided tube, an anchor nail, a contraction line and a bidirectional contraction device; a delivery assembly, wherein the delivery assembly is used for conveying the forming ring assembly to a target position; and a continuous anchoring assembly, wherein the continuous anchoring assembly is used for fixing the forming ring assembly to the target position. Through the bidirectional contraction device based on a compression spring, a friction disc and a wire spool, bidirectional contraction of a forming ring fixed to a valve is achieved, the strength and size of contraction of the valve are accurately adjusted, locking can be achieved at any time, a doctor is allowed to adjust the contraction degree of the valve according to different conditions of different patients, and the doctor is allowed to make adjustment in an opposite direction, so that the size change of the valve during continuous opening and closing is adapted, thus, the success rate of an operation is guaranteed, and secondary operation correction is avoided.

The invention discloses a high-voltage and high-frequency pulsed electric field ablatograph based on a double-gating technology, which comprises a high-frequency and high-voltage pulsed electric field generator, the generator is used for generating a default command pulse; a two-way electrocardio gating module has independent or combined gating functions of body surface electrocardiograms and intracavity bipolar ventricular electrograms and is used for personalized dynamic detection of safe treatment time windows; an electrode array and polarity adapting module which is used for adapting and distributing the multi-pole electrode conduit and the electrode array conduit; a physical and biological safety detection and monitoring module which is used for automatically detecting and continuously monitoring physical, biological and program-controlled safety parameters of the ablation instrument; a multifunctional switch which is used for controlling the two-way electrocardio gating module and the high-frequency and high-voltage pulse electric field generator; an interference protection module which is used for stabilizing interference signals; a main control screen; and a high-voltage-resistant optoelectronic isolation power supply. According to the invention, the operation efficiency can be improved, damage to heart cells except target cells is avoided, and tissue stimulation and muscular pain are reduced.

The invention relates to a lower limb artery double-cavity balloon negative pressure suction protective umbrella device, and belongs to the technical field of medical instruments. Comprising a guide wire, an inner-layer sheathing canal, an inner-layer balloon, an outer-layer membrane sac, an outer-layer sheathing canal and a protective net, an inner-layer sheathing canal is arranged in the outer-layer sheathing canal in a penetrating manner, and a guide wire is arranged in the inner-layer sheathing canal in a penetrating manner; a protective net is arranged at the far end of the guide wire; an inner-layer balloon is arranged between the inner-layer sheathing canal and the outer-layer sheathing canal, and the inner-layer balloon is arranged on the side, close to an operator, of the protective umbrella; an outer-layer membrane bag is arranged on the periphery of the inner-layer balloon; a through hole is formed in the surface of the outer layer membrane bag; and a catheter is arranged on the inner-layer balloon and the outer-layer membrane bag. The surgical operation steps are effectively simplified, the chipping falling risk caused by guide wire exchange is reduced, and the surgical duration is shortened; the blood vessel is repeatedly expanded for many times, a large amount of disintegrating slag is prone to falling off, the pressure of the protective umbrella can be relieved by sucking out turbid blood through negative pressure suction, the blood state in the negative pressure suction bottle can be observed in vitro, and the property and the treatment effect of lesions can be evaluated.

The invention discloses a minimally invasive restorer for tibial plateau collapse fracture blocks. The technical scheme is characterized in that the restorer comprises a top bar body, a sliding hole is formed in the top bar body, a driving rod is connected in the sliding hole in a sliding manner, the circumferential outer side wall of the driving rod is attached to the circumferential inner side wall of the sliding hole, a plurality of top plates are hinged on the outer side wall of the end of the driving rod, one end of the top plate in the length direction is hinged with the end edge of thedriving rod, the other end of the top plate is hinged with one end of the support plate in the length direction, the other end of the support plate in the length direction is hinged with the end, extending into the medullary cavity, of the top bar body, the number of the top plates is consistent with that of outer side surfaces of the driving rod, each top plate surrounds the circumferential outerside wall of the driving rod, a drive nut in threaded connection with the driving rod is arranged at the end, away from one end extending into the medullary cavity, of the top bar body, and the drivenut axially limits and is circumferentially rotationally connected onto the top bar body. The restorer can overcome the defect that collapse fracture blocks are jacked insufficiently.

A biological material with composite extracellular matrix component, in which decellularized small intestinal submucosa (SIS) is treated as the interlayer and decellularized urinary bladder matrix (UBM) is treated as superior and inferior surface layers. The interlayer is totally encapsulated by the mentioned superior and inferior surface layers, forming a sandwich structure with advantages of integrating UBM and SIS to have high bioactivity with bionic structure, UBM isolates the immunogenicity of SIS and direct contact with host tissue, and after implantation the basic type of inflammatory interaction in the host-implant marginal zone is the same as that of pure UBM, with high biocompatibility; effective endotoxin removal optimize the biosafety of the material after implantation; feasibility for industrial large-scale production; the stiffness of the material can be maintained even after hydration, with good handling feel and fit condition, beneficial for the suture fixation and also shorten the fixation or surgery time.

The invention discloses an improved vein-lined stent rat orthotopic liver transplantation model establishment method, which is characterized in that an improved vein-lined stent is used for performing anastomosis on SHVC (supravena cava and supravena cava), and compared with an existing SHVC suture technology and an SHVC oversleeve anastomosis technology, the improved vein-lined stent has the advantages that the operation difficulty can be reduced, the operation time can be shortened, the liver-free stage can be controlled within 10 minutes, and the model has the advantages of being simple in structure, convenient to operate and high in efficiency. And the blood coagulation risk can be reduced.

The invention relates to a medical device-a pair of WX-shaped hard endoscopic forceps, which is used for treating diseases such as lithangiuria, and for treating a children ureteral calculus patient. The diameter of a pair of lithotomy forceps is processed to be about 1.0MM; a calculus can be directly removed by a 4 / 6.5FR children ureteroscope; the surgical calculus removal time is shortened; and the probability of infecting and damaging a ureter is reduced. The outer surface of the pair of WX-shaped hard endoscopic forceps is smooth and round; a rod part is straight; defects such as sharp edges, burrs and cracks are not allowed; opening and closing of forceps heads can be easy, flexible, non-resistance and light, and are not clamped; a forceps petal hardness value of the forceps heads is (400-530)HV0.2; a roughness parameter Ra of the surfaces of the forceps heads is not greater than 0.2 micrometers; the forceps heads, a tube body and a handle are made of materials meeting a requirement of GB / T 1220-2007 Stainless Steel Rod; and the materials can meet a requirement of biocompatibility.

The invention relates to the technical field of medical particle implantation, and discloses a particle implantation system. The particle implantation system comprises CT imaging equipment, a data processing system, a resistive sensor and a laser positioning system; the CT imaging equipment, the resistive sensor and the laser positioning system are all connected with the data processing system. The invention further discloses an operation method of the particle implantation system. By means of the particle implantation system and the operation method, the surgical time is shortened, and the treatment effect is improved; dynamic change data of the needle insertion angle in the process of inserting an implantation needle is obtained by simulating the deviation movement condition of the focuspart and the related tissue of the focus part, the change of the implantation angle of the implantation needle is evaluated in real time in the surgical process, the influence of the directional deviation of the focus part and the related tissue due to extrusion on the accuracy of particle implantation in the puncture process is reduced, and the CT use frequency is reduced; a doctor is guided bylasers in surgery, the surgical operation procedures are simplified, the puncture accuracy is improved, and the repeated puncture rate is reduced.

The invention provides a loop which comprises a fixing plate and a suture line, wherein at least two threading holes are formed in the fixing plate, the suture line is wound into a first coil and a second coil, the first coil and the second coil are arranged on the same side of the fixing plate, the two ends of the first coil and the two ends of the second coil penetrate through the threading holes, the two end parts of the first coil are movably connected to form a first elastic part, the third end part of the second coil is connected with the first end part of the first coil to form a fixingpart, and the fixing part is used for pressing the fourth end part of the second coil to form a second elastic part. By arrangement of the first elastic part and the second elastic part, the purposeof automatically adjusting the length of the coils in the loop is achieved, the coils in the loop cannot become larger and retreat due to the tension effect of a graft when no human external force exists, the operation time is shortened, and the operation risk is reduced. The invention further provides a manufacturing method of the loop.

The invention belongs to the technical field of medical instruments, and discloses a split type acetabulum file system, a control method and application. An inner hexagonal or quincuncial clamping groove is formed in the middle of the plane end of a semispherical planing file; a plurality of protruding arc-shaped planing blades are evenly distributed on the spherical surface of the semispherical planing file; the plane end of an acetabulum file body is connected with a connecting rod; and one end of the connecting rod is integrally provided with a hexagonal or quincuncial connector cooperating with the clamping groove. According to the acetabulum file, the contact position of the acetabulum file body and the connecting rod is hexagonal or quincuncial, and thus, when a power device or a handle makes the whole device to apply force to the acetabulum side through the connecting rod, the phenomenon that the connecting rod and the acetabulum file are inconsistent in rotating speed or idle is avoided, and accordingly, smooth acetabulum filing operation is realized in a minimally invasive incision under the monitoring of an endoscope; if acetabulum files of different models need to be replaced, only force applied to the acetabulum side needs to be removed, namely that the power system and the connecting rod are moved towards the far end; and the operation is convenient.

The invention discloses an anastomat with the dual-motor driving mechanism function. The anastomat comprises a supporting mechanism, a manual driving mechanism is movably connected into the supporting mechanism, an outer driving mechanism is fixedly connected to the rear portion of the upper end of the manual driving mechanism, an anastomosis cutting and suturing mechanism is fixedly connected to the front portion of the upper end of the manual driving mechanism, the anastomosis cutting and suturing mechanism is of an annular structure, a connecting mechanism is fixedly connected to the front sides of the interiors of two protective shells, an inner clamping mechanism is arranged on the connecting mechanism, and a first button and a second button are fixedly connected to the rear end of the supporting mechanism. According to the anastomat with the dual-motor driving mechanism function, in the using process, the anastomat is convenient to hold and operate and can be operated with one hand, clamping and fixing of a prepuce is facilitated, two steps of cutting and anastomosis suture are combined into a whole, the original three steps of clamping and fixing, cutting as well as anastomosis suture are integrated into two steps, surgical operation links are reduced, and surgical efficiency is improved.

The invention belongs to the field of medical instruments, and particularly relates to an orbital blow-out fracture titanium mesh prefabrication method which includes the steps: 1 building a patient skull model; 2 performing cutting and separation; 3 performing mirroring; 4 performing reset and readjustment; 5 improving the coincidence level of a determined damaged area and an actual damaged area; 6 accurately determining the damaged area of a patient; 7 building a repair sclerite model according to the damaged area; 8 printing repair sclerite in a 3D (three-dimensional) manner. The fracture area calculated by the orbital blow-out fracture titanium mesh prefabrication method approximates to actual precision medicine, and precision medicine serving as next-generation diagnosis and treatment technology has important theoretical and practical significance. As the curvature and the size of the sclerite fit with the damaged area of the patient, surgical effects are improved, postoperative complications are decreased, sclerite fabrication is finished before a surgery, surgical time is shortened, and accident risks caused by too long surgical time are reduced.

The invention relates to pulmonary hydrops extraction devices, and particularly relates to a pulmonary hydrops extraction device for respiratory medicine. The technical problem is to provide the pulmonary hydrops extraction device for respiratory medicine that can prevent lung infection of a patient and is high in collection efficiency of pulmonary hydrops. According to the technical scheme, the pulmonary hydrops extraction device for respiratory medicine comprises a rubber soft cushion, a device shell, a top cover, an extraction mechanism and a medicine applying mechanism. The device shell is arranged at the top of the rubber soft cushion. The top cover is arranged at the top of the device shell. The extraction mechanism is arranged in the device shell. The medicine applying mechanism is arranged in the device shell. Through cooperation of the extraction mechanism and the medicine applying mechanism, the device can extract pulmonary hydrops , and apply medicine to the patient.

The invention discloses a disposable medical aspiratordevice, and relates to the field of medical instruments. The problems that the conventional disposable aspirator head isprone to scratching normaltissues, difficult to hold, and prone to tube bending are aimed to be overcome. The provided disposable medical aspirator device mainly comprises the soft head of an aspirator, a handheld tube of theaspirator, and a connecting tube of the aspirator. The soft head of the aspirator is connected with one end of the handheld tube of the aspirator in a sleeving mode, the other end of the handheld tube of the aspirator is connected with one end of the connection tube of the aspirator in a sleeving mode, and the other end of the connectiontube of the aspirator is connected with a negative pressuredevice. According to the disposable medical aspiratordevice, damage to the normal tissues of a human body can be alleviated during the use of the aspirator, slippageduring the use of the aspiratoris prevented, the tube bending during the use of the aspirator is prevented from affecting a surgical operation, and thus operation time is shortened.

The invention provides an intravascular foresight detection device which comprises an intravascular foresight probe; the intravascular foresight probe comprises a shell, a CMUT ultrasonic sensor array, an acquisition control chip and a flexible shaft with a cable; the shell is of a hollow cylindrical structure; the CMUT ultrasonic sensor array and the acquisition control chip are embedded in the shell, the whole body is fixedly connected with the flexible shaft with the cable and moves back and forth along with the flexible shaft with the cable; the intravascular foresight detection device can perform forward imaging at the far end of a catheter head end, determine the deformation direction of a blood vessel cavity and the morphological structure of a lesion, improve the success rate of a CTO lesion operation, reduce occurrence of blood vessel perforation, interlayers and the like in the operation, shorten the operation time, reduce the X-ray radiation quantity, remarkably reduce the dosage of a contrast agent in the operation, and reduce the occurrence of contrast-induced nephropathy.

The invention discloses a pulmonary artery stent convenient to control. The pulmonary artery stent convenient to control comprises a tubular supporting net frame, fixing pieces, a flowing out stent and at least two groups of aorta stents, wherein the supporting net frame consists of continuous regular hexagon rotating units, and top points located at two ends of the supporting net frame, of the rotating units are connecting points; each aorta stent comprises a supporting strip and four auxiliary strips, two ends of each supporting strip are respectively connected with two connecting points which are the farthest from each other, the four auxiliary strips are connected with four connecting points in the middle in a one-to-one correspondence, one end departing from the connecting points, ofeach auxiliary strip and the corresponding supporting strip are connected to one point, and the corresponding fixing piece is located at the connecting position of each supporting strip and the corresponding auxiliary strip; and the flowing out stent is located at the other end of the supporting net frame. According to the pulmonary artery stent convenient to control disclosed by the invention, the connecting lines between rotating units in the pulmonary artery stent convenient to control are long, every two adjacent rotating units rotate along the corresponding connecting line, during rotation, the rotation direction is stable and reliable, and accidental situations appearing in a mounting process can be effectively avoided and reduced.

The invention relates to a specific area boundary detection and positioning method and system for samples with complex components, which specifically includes: shaping the outgoing laser, and the cylindrical laser shaped by the cylindrical lens is vertically irradiated on the horizontal plane of the sample; Change the position where the columnar laser is irradiated on the horizontal plane of the sample to be tested, collect the photoacoustic signal, and through signal processing, the combined spectrum-acoustic power spectrum at the position of the sample to be tested can be obtained, and the joint difference spectrum-acoustic power spectrum can be obtained The amplitude of the sound power spectrum after normalizing the upper energy can determine the molecular chemistry, microstructure and other information at the position of the sample to be inspected, and then perform boundary detection and positioning. The system includes a pulsed laser source, a glass slide, a needle hydrophone, an amplifier, Oscilloscope, cylindrical lens, galvomirror and computer; the present invention aims at the problem that current medical equipment can only perform boundary detection, location and distinction from a physical point of view, and proposes a new boundary detection scheme, which has the dual advantages of high sensitivity and deep penetration depth.

The invention discloses a novel conjunctival flap drilling device comprising a handle and a blade connected to one end of the handle; a blade comprises an upper arc edge, a lower bottom edge and two side edges, the two side edges are connected with the two ends of the upper arc edge and the two ends of the lower bottom edge respectively, the whole blade forms a hollow cylinder similar to a trapezoid, and a cutting edge is arranged at the end, deviating from the handle, of the blade. A conjunctival flap with the flat edge can be obtained, the thickness is controllable, when the conjunctival flap is used, only the handle needs to be slightly pressed, the conjunctival flap with the flat edge and the fixed size is obtained through the cutting edge of the blade, the thickness of the conjunctival flap is controlled through the strength of pressing the handle, use is convenient and fast, operation duration can be shortened, operation difficulty and risks are reduced, and patient experience isimproved.

The invention provides an intervertebral disc surgical incision positioning device, and belongs to the field of medical devices. The intervertebral disc surgical incision positioning device includes at least two imaging baffles and connecting pieces. Each imaging baffle is provided with positioning holes which are used for making rays penetrate and irradiate spine intervertebral discs, and at least one of the two imaging baffles is used for being fixed on the side surface of a human body. The connecting pieces are used for connecting the imaging baffles in series and making each imaging bafflein a preset relative position. The preset relative position is used for making positioning holes of each imaging baffle face the spine intervertebral discs one by one in the operation approach direction. According to the intervertebral disc surgical incision positioning device, each imaging baffle is connected in series through the connecting pieces, and made at the preset relative position, thepositions of various intervertebral disc surgical incisions can be determined directly through the positioning holes, operation is simplified, operation time is shortened, and the sufferings and injuries of patients are reduced.

The invention relates to the technical field of medical instruments, and discloses a marking and measuring angiographic catheter, which comprises a catheter body; one end of the catheter body is provided with a first Luer taper; the surface of the catheter body is sleeved with a pushing tube; and the surface of the catheter body is fixedly sleeved with a plurality of platinum-iridium developing rings. According to the invention, by arranging the plurality of platinum-iridium developing rings evenly distributed on the surface of the catheter body, the developing effect of the catheter can be improved; marking and measuring functions are achieved; the timeliness of finding a focus in an interventional operation is improved; the success rate and accuracy of the operation are greatly increased; a medicament conveying groove communicated with a side hole is arranged in the catheter body; it is connected with a contrast agent injection device in cooperation with a medicament conveying pipe and a second Luer taper; a contrast agent is pushed; and a guide wire in the catheter body does not need to be pulled out in the process of pushing the contrast agent through the medicament conveying groove and the side hole, so that the time for pulling out the guide wire is saved, and the operation duration is shortened.

The invention relates to the technical field of medical equipment, and discloses an electric screw tap. The electric screw tap comprises a handle, a screw tap body, a detection assembly and an auxiliary part. The screw tap body rotationally penetrates through the handle, spiral teeth are arranged on the side wall of the far end of the screw tap body, a plurality of scale marks are arranged on the side wall of the near end side of the spiral teeth, the screw tap body comprises a first contact part and a second contact part which are in insulated connection, and the first contact part and the second contact part both extend to the far end of the screw tap body; the detection assembly comprises a current acquisition piece, a first acquisition end of the current acquisition piece is electrically connected with the first contact part, and a second acquisition end of the current acquisition piece is electrically connected with the second contact part; the screw tap body is connected to the auxiliary part in an insulating mode and covers at least part of the side wall of the screw tap body, and the auxiliary part can move in the axial direction of the screw tap body. According to the invention, the operation time is shortened, the working intensity of doctors is reduced, the contact between the screw tap and the tissue during the operation is monitored at any time, and the operation safety and the operation effect are ensured.

The present application relates to a beam positioning method, a guide channel positioning method and a positioning mechanism. The beam positioning method includes the steps: acquiring position information of a first intersection point formed by an intersection of a light beam and a detection area on an optical detection device, the light beam including a positioning light beam and an interferencelight beam, the positioning light beam pointing toward a target point of a diseased limb; acquiring position information of a second intersection point formed by the intersection of the interference beam and the detection area on the optical detection device; and calculating coordinates of the positioning beam on the detection area based on position information of the first intersection point andposition information of the second intersection point.

The invention provides a minimally invasive calcaneal fracture fixing nail system and a using method, and belongs to the technical field of medical instruments. The invention provides a minimally invasive calcaneal fracture fixing nail guiding system. The minimally invasive calcaneal fracture fixing nail guiding system comprises a first hollow bone screw, a second hollow bone screw, a guiding plate and a guiding needle. The first hollow bone screw is implanted from the inner upper part of the rear side of the calcaneus to the front outer part of the calcaneus, the second hollow bone screw is arranged below the first hollow bone screw and is implanted from the outer lower part of the rear side of the calcaneus to the sustentaculum tali direction of the inner upper part of the calcaneus, and the first hollow bone screw is detachably connected with the guide plate; the guide plate is provided with a guide hole for the guide needle to penetrate through, and the second hollow bone screw is provided with a through hole matched with the guide needle in the axial direction of the second hollow bone screw. And the guide plate is attached to the surface of the calcaneus. According to the minimally invasive calcaneal fracture fixing nail guiding system and the using method, the number of nail holes is small, operation is easy and convenient, damage to a patient is small, and popularization is easy.

The invention relates to the technical field of medical instruments, and provides a marking nail for a surgical robot, a surgical instrument and a use method of the surgical instrument. The surgical instrument for the surgical robot comprises a first clamping piece, a second clamping piece, a first elastic piece, a clamping driving piece and a second elastic piece; the second clamping piece is rotationally connected to the first clamping piece, and the second clamping piece has a clamping state and a separating state; the first elastic piece provides elastic supporting force for the second clamping piece to be switched to the separated state. The clamping driving piece is suitable for driving the second clamping piece to be switched to a clamping state when moving to the first position; the second elastic piece is connected with the clamping driving piece and provides elastic supporting force for the clamping driving piece to move towards the first position. The marking nail for the surgical robot, the surgical instrument and the use method of the marking nail have the advantages of being easy to operate and suitable for being rapidly installed in a narrow operation space, the efficiency and the success rate can be improved, and the operation duration is shortened.