32 results about "Vessel nerve" patented technology

The invention discloses multifunctional intelligent acupuncture and moxibustion diagnosis and treatment instrument and an application method thereof. The diagnosis and treatment instrument comprises an acupuncture point detection module, an acupuncture point positioning module and an acupuncture and moxibustion therapy module which can be used separately or as a whole, wherein the acupuncture point detection module is used for collecting information of body surface impedance, acoustic electricity, infrared temperature, luminescence intensity, biomagnetism and electromyogram; the acupuncture point positioning module is used for lively and directly displaying the acupuncture point positions on a human 3D (three-dimensional) model, and conducting objective and accurate positioning by combining position relation of human skeleton, muscle, vessel, nerve, lymph or viscera and acupuncture points, without influence by body figure difference of users; and the acupuncture and moxibustion therapy module is used for realizing multiple treatment of oscillation massaging, infrared thermal therapy, electromagnetic treatment, pulse current treatment and the like. The multifunctional intelligent acupuncture and moxibustion diagnosis and treatment instrument and the application method thereof have the advantages of precisely detecting all physical characteristics of the acupuncture points, providing complete and reliable diagnosis reference and basis for patients and medical staff, providing accurate and reliable positioning results, and adopting multiple acupuncture and moxibustion therapymeans so as to provide convenience to users.

The present invention discloses a method for removing surplus fat and a device thereof. The method comprises the following steps that: a. skin and subcutaneous tissue at a target area are sucked by a negative pressure device so as to be positioned in a movable fat suction processing container; and b. energy which is capable of destroying a lipocyte is led to the human body fat region of the container so as to remove fat. The device comprises an energy generation device which generates energy for destroying the lipocyte, and is provided with an operating handle. The operating handle is of a reentrant shape. The energy generation device is arranged on the reentrant inner wall of the operating handle. The operating handle is provided with a vacuum negative pressure suction device. The method and the device can selectively dissolve adipose tissue at the target area by simultaneously or respectively emitting high strength focused supersound and laser to the target area of a patient, and the adjacent tissues around the adipose tissue such as blood vessels, nerves and muscles, etc. are not injured, thereby achieving the aim of body shaping and thinning. The supersound and an optical imaging detector can monitor the operation development in real-time and adjust a therapeutic proposal timely.

This document discusses, among other things, apparatus, systems, and methods for transvascularly stimulation of a nerve or nerve trunk. In an example, an apparatus is configured to transvascularly stimulate a nerve trunk through a blood vessel. The apparatus includes an expandable electrode that is chronically implantable in a blood vessel proximate a nerve trunk. The expandable electrode is configured to abut a predetermined surface area of the vessel wall along a predetermined length of the vessel. An electrical lead is coupled to the expandable electrode. An implantable pulse generator is coupled to the lead and configured to deliver an electrical stimulation signal to the electrode through the lead. In an example method, an electrical signal is delivered from an implanted medical device to an electrode chronically implanted in a blood vessel proximate a nerve trunk to transvascularly deliver neural stimulation from the electrode to the nerve trunk.

The invention provides a preparation method for a tumour prosthesis of an upper middle tibia. The method comprises the steps that firstly, a three-dimensional reconstruction technology is adopted to reconstruct uninjured and affected side tibias, according to the tumor position, an osteotomy range is determined, a tibia prosthesis body is obtained through mirroring based on the uninjured side tibia, side wing steel plates and intramedullary nails which are arranged at two sides of sclerotin are fixed to two ends of the tibia prosthesis body through the computer aided design, and an STL model is exported for 3D printing and subsequent treatment. The preparation method is simple and quick and makes up for deficiency of an existing clinical tumour prosthesis of the upper middle tibia, based on the preparation method, the prepared prosthesis reserves the articular surface, the designed bone block fixing steel plate position of the articular surface keeps away from pes anserinus and other parts covered by nervus nerve soft tissues, the fixing is safer and more reliable, a far-end intramedullary nail adopts the combination technology of sliding holes and static holes, and the nail placing position is obtained through the finite element analysis technology, so that the overall mechanics distribution is more uniform after prosthesis implantation, and the long-term stability is reinforced.

The invention provides a multifunctional telescopic cutting scalpel for the discoid meniscus operation under a knee arthroscope. The multifunctional telescopic cutting scalpel comprises a main sheath, an auxiliary sheath, a blade and a blade moving mechanism. The main sheath is provided with threaded holes, a button moving groove, a scaleplate scale, locking grooves and inclined lines. The auxiliary sheath is provided with threaded holes, a scaleplate scale and inclined lines. The blade is provided with a blade scale and a blade installing hole. The blade moving mechanism comprises a blade installing groove, an elastic steel sheet, a button, a locking pin and a blade holder. When reaching a tear portion from an inlet of the arthroscope, the cutting scalpel can effectively prevent damage to normal tissue such as peripheral vessels and nerves, thigh bone cartilage, tibial plateau cartilage and anterior and posterior cruciate ligaments; the multifunctional telescopic cutting scalpel can be used for measuring a fracture wound accurately, thereby guaranteeing accurate cutting and maintaining and protecting normal meniscus tissue to the greatest extent; the cutting scalpel is simple and convenient to operate, and the inclined lines can increase friction force to prevent the scalpel from falling off from hands; the locking device can prevent tissue damage caused by fault in gear change, thereby improving safety.

The invention provides a constructing method of a femur middle-lower section bone defect model. The constructing method of the bone defect model comprises the following steps: (1) taking preserved skin from posterior limb of an anesthetized animal and disinfecting the preserved skin, and making incisions on middle, lower and front outer sides of femur of the animal to expose the middle-lower section of the femur; and (2) exciding femurs differing in size from the middle-lower section of the femur to form bone defect, irrigating wounds, dressing and stitching so as to obtain the femur middle-lower section bone defect model. On a femur middle-lower section bone defect operative approach, important blood vessels and nerves are avoided, so that secondary injury and bleeding are relieved in a process of establishing the bone defect model to the greatest extent; and the model is good in unity and repeatability, and is conducive to simulating a clinical bone defect repairing effect. The invention also provides a femur middle-lower section bone defect model prepared based on the method and application of the bone defect model.

The invention relates to a back ankle fracture indirect restorer, comprising a device body. The back ankle fracture indirect restorer is characterized in that the device body is in a strip shape, the longitudinal direction of the front end of the device body is arc and provided with a U-shaped fork, and a hole is arranged at the back end of the device body. When the device body is used, the front-side skin of the ankle joint is cut open, the tendon and vessel nerves in the front of the ankle are drawn towards the two sides to better show a joint internal structure; in the operation, a gap between tibial distances can be better enlarged through inserting the U-shaped fork in the front end of the device body to poke so that the restoration condition of a back ankle fracture block on the tibia far-end joint surface can be clearly seen under orthophoria, and anatomy restoration of the joint surface is facilitated. The back ankle fracture indirect restorer has the advantages of small operation injury, clear display, less blood in operation, short operation time and convenient use, reduces the workload of doctors and nurses and improves the work efficiency.

The invention discloses a transverse carpal ligament closing and separating device for treating carpal tunnel syndrome. The transverse carpal ligament closing and separating device comprises a bottom plate, an upper pressing plate and a hook push broach, wherein the bottom plate is of a hollow structure, one end of the bottom plate is a guide end with a guide structure, the guide end is closed, and the other end of the bottom plate is an insertion end with an insertion opening; an opening is formed in the upper side of the bottom plate, the upper pressing plate is detachably arranged at the opening side of the bottom plate, and a locating space for locating a transverse carpal ligament is formed between the upper pressing plate and the bottom plate and at one end close to the guide end; and one end of the hook push broach is a cutting end with a blade, the other end of the hook push broach is a handheld end, and the cutting end of the hook push broach is inserted from the insertion end of the bottom plate and can reciprocate along the length direction of the bottom plate, so that the blade of the cutting end can cut the transverse carpal ligament in a reciprocating mode. According to the transverse carpal ligament closing and separating device, the transverse carpal ligament is separated in the locating space by adopting the hook push broach, iatrogenic accidents caused due to the fact that a median-nerve superficial palmar arch is clamped and pressed by an operation device are prevented, and it is ensured that the transverse carpal ligament is completely separated and blood vessel nerves are not damaged.

The invention discloses a cooling head sleeve carrying a microfluid flow channel, which comprises a head sleeve body and a microfluid flow channel, and is characterized in that the head sleeve body is used for coating the head of a patient suffering from fever, the microfluid flow channel attached to the inner wall of the head sleeve body is carried in the head sleeve body, and the microfluid flow channel can be tightly attached to the afterbrain part of a human body and is used for cooling the head; wherein the microfluid flow channel has a special geometric structure, the special geometric structure is a flow channel designed on the basis of distribution of blood vessels and nerves at the afterbrain part, the flow channel bypasses a local sensitive area of the afterbrain, one side of the flow channel is provided with a microfluid flow channel inlet, the other side of the flow channel is provided with a microfluid flow channel outlet, and a cooling solution with high specific heat capacity is injected into the microfluid flow channel. Therefore, the efficient heat absorption and cooling effects are achieved. The cooling head sleeve carrying the microfluid flow channel has the advantages of being low in cost, easy to machine, good in cooling and heat absorption effect and the like, and can meet the use requirement for assisting in physical cooling of the head of a patient suffering from fever.

The invention relates to the technical field of medical instruments, in particular to a tibial tunnel traction suture guide cannula for arthroscopic posterior cruciate ligament reconstruction. The traction suture guide cannula comprises a suture-crossing cannula, a hinge section and a first push rod, a first push rod groove is formed in the cannula wall of the suture-crossing cannula in the axialdirection of the suture-crossing cannula, and the hinge section is of a hollow tube structure; one end of the hinge section is hinged to the suture-crossing cannula, the outer end of the hinge sectionis provided with a traction suture reversing shaft, and the first push rod movably extends into the first push rod groove to push the hinge section to rotate relative to the suture-crossing cannula so that a traction suture can go from the front portion of a tibial tunnel to the rear portion of the tibial tunnel and then return to the front portion of a knee joint; the traction suture can be quickly drawn out of the tibial tunnel just by gently peeling off an articular capsule at a posterior cruciate ligament attachment part instead of forming posterior inner-side or posterolateral incisionsin a whole operation, the operational procedures are effectively simplified, the risk of vascular nerve injuries behind the knee joint is greatly reduced, and the operation time is saved.

The invention relates to the field of medical instruments, in particular to an anterior cervical flexible eccentric minimally invasive channel system. A semi-ring-shaped esophagus protection drag hook of the system is integrally formed by a semi-ring section, an arc-shaped transition section and a horizontal extension section, the length of the semi-ring section is 50 mm, the bottom of the semi-ring section is upwards warped outwards by 2 mm to form a drag hook, the two sides of the semi-ring section are cylinders with the diameter being 1.5 mm, and the length of the horizontal extension section is 100 mm; the height of the flexible expandable sheet is 20mm, the two sides of the flexible expandable sheet are symmetrical rigid structures of 6mm, the middle of the flexible expandable sheet is an elastic protection pad edge joint of 10mm, and the flexible expandable sheet is used for protecting outside blood vessels and nerves and can be pressed downwards to facilitate operation in a window; and the edge is semicircular, the inner diameter of the edge is 1.6 mm, the edge is used for being inserted into an esophagus retractor cylinder, and a locking screw hole is formed in the edge and used for locking after distraction. When being applied, the system is advantageous in that the surgical wound is small, the recovery is fast, the precise and minimally invasive anterior cervical surgery is really realized, and the requirements of the CADF gold standard of the anterior cervical surgery are met.

The invention discloses an adjustable fracture reduction device which comprises a squeezing feeding part, a fracture reduction rod and a bone guide pin. The squeezing feeding part can penetrate and expand a soft tissue on the surface of a human body fracture part to form a soft tissue channel, one end of the fracture reduction rod can be inserted in the soft tissue channel and reach the fracture position, the fracture reduction rod is provided with at least two axial holes axially having a set included angle, at least two bone guide pins correspondingly penetrate the axial through holes, one end of each bone guide pin is provided with a pointed end, the pointed end at one end of the bone guide pin can extend out of the fracture reduction rod and be stabbed into the bone block of the human body fracture part, and the bone guide pin and the other end of the fracture reduction rod are exposed outside the outer side of the human body soft tissue by a set distance. During an operation, the adjustable fracture reduction device can reach the fracture part without damaging the fracture part and vessels and nerves only by opening a very small incision on the fracture part, and the adjustable fracture reduction device is convenient and safe to operate, favorable for fracture healing and joint function recovery and particularly safe for vessel and nerve parts.

The invention discloses a universal joint operation adjustable fixed operation channel, which comprises opening plates, movable supports and tissue clamps, the opening plates are semi-cylindrical, the two opening plates are symmetrically placed, the front sides and the rear sides of the two supporting plates are connected through the movable supports, and the tissue clamps are detachably mounted on the outer side walls of the opening plates; a threaded rod is arranged in the center of the movable support, a plurality of threaded rings are movably installed on the threaded rod, supporting rods are hinged to the left side and the right side of the threaded rod respectively, and the other ends of the supporting rods are hinged to the opening plate. The tissue clamp is formed by symmetrically installing two identical tissue clamps. A stable operation channel is arranged, the size of the channel can be adjusted, the application range is wide, operation time is saved, and risks are reduced; important tissues such as blood vessels, nerves, ligaments and tendons can be protected by the distraction plate, accidental injury in an operation is avoided, and the operation risk is reduced; the incision edge tissue is clamped through the two tissue clamps, tissue fluid leakage is reduced, the situation that the vision is affected by the soft tissue is avoided, and the operation efficiency is improved.

The present invention relates to a method for repairing a peripheral nerve injury. The method comprises providing an immunologically inactive allogenic vessel at a peripheral nerve injury site and routing nerve tissue through the vessel lumen to bridge the peripheral nerve injury site.

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a traumatic fracture fixing device with an improved patient fixing effect. Since existing conventional devices lack of suitable equipment or fail to provide reasonable rescue, the trauma often becomes more serious, and secondary injury is brought to a fracture site. The invention aims to develop an auxiliary device used for pre-hospital first aid and hospital treatment of a traumatic fracture, and the auxiliary device is suitable for effectively fixing a fracture site in the first aid process of the trauma fracture, thus reducing the times of moving and secondary injury to blood vessels, nerves and periostea after injury. The fixing device comprises an outer frame, an inner frame, a clamping device and a connecting piece; the clamping device includes a splint, rotating rods, a distance adjusting part and a fastener. The fixing device has the characteristics of simple structure, convenient use, quick operation and the like, and after preliminary assessment on the injury scene, the fixing device is utilized immediately to effectively fix the traumatic fracture site, thereby effectively preventing secondary injury to the fracture.

The invention belongs to the technical field of medical instruments, and discloses a transparent full-visual U-shaped interbody fusion working channel and a manufacturing method thereof. A channel pipe and a handle are integrally formed through injection molding and carving, and the channel pipe and the handle are transparent; a connecting buckle is fixed to the handle, the channel pipe is locatedbetween soft tissues and spines, and an interbody fusion cage is fixed between the spines; and the outer side of the pipe wall of the channel pipe is an accurate position for the compression degree of outer blood vessels, nerves and dura mater, the scraping dynamic state of a soft vertebral plate in the pipe wall and implantation of the interbody fusion cage. A high-light-transmission and high-hardness resin material is adopted, the structure is simple, the cost is low, the basic requirement for serving as a medical-grade material is met, and the compression degree of the tissue outside the pipe wall, the position of the interbody fusion cage in the pipe wall and the scraping state of the soft vertebral plate can be observed in a minimally invasive interbody fusion operation process. Theoperation risk and difficulty are reduced, the operation efficiency is improved, and the health risk of medical staff and patients in the operation process is eliminated.

The invention belongs to the technical field of medical cosmetology, and particularly relates to application of a 4D pyramid array thread distribution method on the facial skin. The invention comprises a pyramid array thread lift method. The key attention point of the pyramid array thread lift method is as follows: a user needs to be familiar with dissection, and a plurality of important points, which need to be avoided, on blood vessels and nerves, strictly abides by the principle of a sterile operation, has firm aesthetics, grasps indications and contraindications and well manages the expected values of customers. PPDO absorbable suture thread materials are adopted as materials of the pyramid array thread lift method, the thread distribution combination of the pyramid array thread lift method is simplified, and a mode of combining large threads and small threads is adopted. The pyramid array thread lift method adopts a pyramid type pyramid array thread distribution method, and threads are gathered at a point of strength in the direction of a vector line to be lifted in tissues. The invention adopts a set of simple, feasible and effective pyramid type pyramid array thread distribution method, the threads are gathered at the point of strength in the direction of the vector line to be lifted in the tissues, so that tissue hyperplasia is promoted more strongly, and a purpose of modifying the contour is achieved.

The invention discloses an integrated operation stitching instrument. The stitching instrument comprises a main control mechanism, a driving rod assembly, a fixing cylinder, a stitching end assembly and a stitching line fixing assembly, wherein the driving rod assembly, the fixing cylinder, the stitching end assembly and the stitching line fixing assembly extend outwards from interior of the maincontrol mechanism, the driving rod assembly extending out of the main control mechanism is arranged in the fixing cylinder and the stitching end assembly, the main control mechanism is fixedly connected with the suturing end assembly through the fixing cylinder, and the suture line fixing assembly is arranged outside the fixing cylinder and connected with the fixing cylinder. The stitching instrument is simple and convenient to operate, only a small operation space needs to be separated in an operation, stitching can be completed under guidance of fingers by probing ligament tissue with fingers, and direct vision is not needed. The stitching instrument can obviously shorten operation time, reduce operation space required for suture, reduce tissue damage caused by excessive separation, is accurate in suture, is not easy to accidentally injure blood vessels, nerves and other tissues, and has high one-time suturing success rate.

The invention relates to a device for establishing a blood vessel tunnel under direct vision. The device for establishing the blood vessel tunnel under the direct vision comprises a subcutaneous tunnel device, an inflation device and an electron microscope, the subcutaneous tunnel device body is of a cylindrical structure, and the front end of the subcutaneous tunnel device body is of a structure with the diameter gradually reduced. A gas channel and a microscope channel which are of hollow structures are respectively arranged in the subcutaneous tunnel device; the inflating device comprises an inflating bag and an inflating tube; the diameter of the gas filling pipe is smaller than that of the gas channel; the electronic fiberscope comprises a display screen and a fiber pipeline; the tail end of the fiber pipeline is connected with the display screen, and an illuminating lamp and a camera are arranged in the front end of the fiber pipeline; and the diameter of the fiber pipeline is smaller than that of the microscope pipeline. The device has the advantages that when a blood vessel channel is built subcutaneously, the blood vessel tunnel device can be directly propelled subcutaneously, damage to blood vessels, nerves and muscles is avoided, meanwhile, the propelling direction can be conveniently adjusted, a blood vessel anastomotic stoma can be accurately aligned, and clinical complications are avoided.

The invention discloses a pair of novel tissue cutting double-headed scissors. The novel tissue cutting double-headed scissors comprise a first scissor head and a second scissor head; the first scissor head comprises a first upper scissor back, a first upper blade arranged on the inner side of the first upper scissor back, a first lower scissor back and a first lower blade arranged on the inner side of the first lower scissor back; the second scissor head comprises a second upper scissor back, a second upper blade arranged on the inner side of the second upper scissor back, a second lower scissor back and a second lower blade arranged on the inner side of the second lower scissor back; the first upper scissor back and the second upper scissor back are connected through a first connecting part; the first lower scissor back and the second lower scissor back are connected through a second connecting part; and the first connecting part and the second connecting part are connected in an opening and closing manner. Separating, fixing and shearing can be achieved at the same time, it is guaranteed that materials are qualified, surrounding muscles/blood vessels/nerves are not damaged, and damage to target materials is reduced. Different types of scissor heads can be replaced according to different target materials and use scenes, so that the purpose of taking materials is achieved; and the structure is simple and use is convenient.