16 results about "Vessel nerve" patented technology

The invention discloses a human body model, and relates to the technical field of teaching instruments, and the human body model comprises a first model frame which is provided with a plurality of first meshes and is used for simulating a human body skeleton; the second model frame is provided with a cavity, a first connecting part, a second connecting part and a plurality of second meshes, the first model frame is arranged in the cavity and detachably connected with the second model frame, the first connecting part is detachably connected with the second connecting part, the second model frame is used for simulating the outer contour of a human body, and the aperture of at least part of the second meshes is larger than that of the first meshes; each of the first model frame and the second model frame comprises at least one of a head and neck, a thorax, an abdomen, a pelvis and four limbs and is correspondingly arranged; the simulation structure comprises a first simulation piece and a second simulation piece, and the first simulation piece is used for simulating blood vessels, nerves and lymphatic vessels; the second simulation piece is used for simulating human muscles and organs. The problem that in the prior art, a human body model used for teaching is difficult to operate manually while the internal structure is visualized is solved.

The invention belongs to the technical field of medical instruments, and particularly relates to an artificial mitral valve suture-free automatic implantation device which comprises a catheter, one end of the catheter is fixedly connected with an opening and closing puncture mechanism, the inner wall of the catheter is fixedly connected with a pushing mechanism, a groove is formed in the outer surface of the catheter, and a filling solvent bag is installed in the groove; through the arranged opening and closing puncture mechanism, the opening and closing puncture head enters the human body with the minimum incision and then is expanded after entering the human body, the initial puncture point is extremely small, direct injury to tissues such as blood vessels and cardiac muscle can be reduced, the path of the automatically expanded needle head is more regular, important blood vessels, nerves or cardiac muscle tissues can be avoided, the accidental injury risk is reduced, and the working efficiency is improved. According to traditional implantation, a puncture channel possibly needs to be expanded in advance, an open-close type needle head is automatically expanded after entering, an additional expansion step is not needed, traction and extrusion on surrounding tissue are reduced, and the possibility of hematoma and infection after an operation is reduced.

The invention belongs to the technical field of traditional Chinese medicine treatment, and discloses a method for treating knee joint diseases through a thigh medial oblique puncture method based on meridian differentiation, which comprises the following steps: step 1, performing acupuncture by adopting a 15-30-degree oblique puncture method with the height consistent with that of thigh medial muscle group fibers; 2, using a disposable sterile small needle knife with the specification of 0.5 mm * 75 mm as a needling instrument; 3, 2-3 short-range treatment cycles are set, a puncture part is positioned and disinfected firstly, and lesion areas such as medial femoral muscle deep fascia are accurately found; then a 0.5 mm * 75 mm blunt-end small needle knife is selected, and the 75 mm length can directly reach the deep lesion area of the knee joint from the inner side surface layer of the thigh. When the needle is inserted, a 15-30-degree oblique needling method is adopted, and the angle and the trend of muscle fibers on the inner side of the thigh completely go deep along muscle fiber gaps and easily penetrate into a deep layer. The 0.3 mm blunt end of the needle tip can be slightly pushed away instead of being scratched when encountering blood vessels and nerves. Finally, through 2-3 times of centralized treatment, the diseased region is stimulated for multiple times in a short time, the self-repairing ability of the body is quickly activated, adhesion tissues around the knee joint are loosened, inflammation is eliminated, blood circulation is accelerated, and actual application and operation are facilitated.

The utility model relates to the technical field of medical instruments, in particular to a positioning device for assisting reduction and fixing acromioclavicular dislocation, which comprises a base plate, an acromion end positioning plate is arranged at one end of the base plate, and a clavicle end positioning block is arranged at the other end of the base plate. Holes are formed in the acromion end positioning plate, acromion end fixing guide needle sleeves are fixedly connected to the positions corresponding to the holes, a plurality of holes are formed in the base plate, and a first coracoshoulder ligament fixing guide needle sleeve, a second coracoshoulder ligament fixing guide needle sleeve and a clavicle end guide needle fixing sleeve are fixedly connected to the positions corresponding to the holes respectively. The positioning device can achieve accurate positioning, damage to blood vessels, nerve tracts and surrounding tissues below the coracoid process is avoided, and operation bleeding is reduced. Due to the fact that the individualized bone tunnel is established, the position where the belt carrier titanium plate is placed is appropriate, the osteolysis phenomenon is reduced, and meanwhile the risk of coracoid fracture is reduced. According to the operation method adopting the positioning device, the operation difficulty is remarkably reduced, the operation time is shortened, and the learning curve of young physicians is reduced.

The utility model provides an inflatable protection pad, including leg pad, leg pad is from top to bottom is divided into silica gel soft pad, sponge layer and inflatable air bag, silica gel soft pad cladding is in the top layer of sponge layer, is provided with antiskid line, the recessed fit of sponge layer is set to human body patella, inflatable air bag is fixed in the bottom one end of sponge layer, adjusts own height through the inflation port and the air outlet of side end, the utility model changes the contact area of knee joint and bed surface, reduces the pressure intensity of knee joint surface when prone position, reaches the purpose that reduces, prevents pressure injury, can raise foot ankle part, makes ankle joint natural bending, foot tip natural droop, keeps lower limb function position, prevents blood vessel nerve injury, reduces the postural surgical complication, can make femoral shaft and pelvis keep certain flexion angle simultaneously, prevents overstretching, keeps functional body position, avoids nerve and blood vessel injury, has inflatable air bag, can cooperate with external air blowing equipment and adjusts ankle height according to actual condition, adjusts knee flexion angle.

The utility model belongs to the field of medical instruments, and particularly relates to a spiral positioner which comprises a needle sleeve, a positioning needle core and a push rod, a needle sleeve handle is arranged at the rear end of the needle sleeve, a push rod handle is arranged at the rear end of the push rod, and the needle sleeve and the push rod are coaxially arranged. The positioning needle core comprises a spiral positioner and a metal wire, the spiral positioner is arranged at the front end in the needle sleeve, one end of the metal wire is fixedly connected with the rear end of the spiral positioner, and the other end of the metal wire penetrates through the push rod and extends to the rear end of the push rod handle; a spiral slide way is arranged on the inner side of the needle sleeve handle, a sliding block is arranged on the outer side of the push rod handle, and the sliding block can slide along the spiral slide way. A buckle is arranged at the front end of the push rod handle, and a clamping groove matched with the buckle is formed in the rear end of the spiral positioner. According to the spiral positioner, the real-time positioning effect is good, and blood vessels and nerves can be prevented from being hurt.

The invention discloses a stripping guide head structure and assembly for a surgical operation endoscope, and the stripping guide head structure and assembly comprises a crowbar, a guide head shell and a guide head body, the limiting block and the guide block are arranged on the side surface of the guide head shell, the limiting groove is formed in the side surface of the crowbar and matched with the limiting block, and the guide groove is formed in the side surface of the crowbar and matched with the guide block. The splicing device has the beneficial effects that through the designed limiting and guiding component, automatic guiding and accurate positioning during splicing are achieved, the assembling difficulty is greatly reduced, and the assembling efficiency is improved; meanwhile, a clamping structure of a fixing hook and a fixing hole is matched, so that the assembly is not easy to loosen and misplace after being spliced, the stress in an operation is more stable, and the operation safety of the operation is obviously improved; the guiding head body which is blunt and bent and has a smooth surface is adopted, tissues are processed in a pushing and separating mode in an operation, accidental injury of blood vessels, nerves and visceral organs caused by sharp cutting is avoided, and bleeding in the operation and postoperative complications are reduced.

The invention, in one aspect, relates to an intravascular electrode system. The system comprises one or more electrodes supported on an elongated resiliently flexible support member, and the support member may be used to introduce the electrodes into a blood vessel. As the support member is introduced into the blood vessel the support member bends to follow the path of the blood vessel.

The present application relates to the technical field of medical apparatus and discloses a visual deep abdominal cavity suction and stripping system, which comprises a handle, a transmission rod is arranged at the front end of the handle, a bending assembly is arranged at the other end of the transmission rod, a blunt suction head is arranged at the other end of the bending assembly, a memory alloy reset mandrel, two groups of traction steel wires and multiple groups of light guide fibers are arranged in the transmission rod and the bending assembly, the two ends of the two groups of traction steel wires are fixedly connected with the blunt suction head, and a light scattering ring head is arranged on the surface of the blunt suction head. The two groups of vertically distributed traction steel wires are cooperated with differential traction, so that the bending assembly can realize multi-angle bending in three-dimensional space, effectively bypasses the dirty organs to reach the hidden bleeding points which are difficult to reach by traditional straight rod instruments, the light guide fibers are cooperated with the light scattering ring head at the tail end, cold light is introduced into the deep abdominal cavity, the visual field is illuminated without obstruction, and important blood vessels and nerves are prevented from being damaged by the operation of the doctor under blind vision.

In a wire fixture attached to a medical wire inserted into a bone, in order to realize a wire fixture in which damage is less likely to occur in a soft tissue even when a soft tissue such as a blood vessel, a nerve, a tendon, or the like exists in the vicinity of an attachment location, the wire fixture 10 includes a ball member 11 formed in a ball shape and having, as a portion through which the medical wire 5 penetrates, a penetration portion 12 extending in a thickness direction of the ball member 11, and wherein the ball member 11 is attached to the medical wire 5 by crushing the ball member 11 and sandwiching the medical wire 5 by an inner surface of the penetrating part 12 in a state where the medical wire 5 penetrates the penetrating part 12.

The invention discloses a bone tumor specimen sampling device, and relates to the technical field of biopsy sampling, the bone tumor specimen sampling device comprises a base plate, a sampler body and a sampling needle tube, the sampling needle tube is fixedly connected to the bottom of the sampler body, the top of the base plate is bonded with a limiting pad, and the outer side of the base plate is provided with a pressing assembly. The sampler body and the sampling needle tube are stably moved downwards through the lifting block, so that the sampling needle tube is firstly inserted into a hole in the leg of a patient when being stably and downwards inserted, and compared with the mode that a medical worker holds the sampler body by hand and inserts the sampling needle tube into the hole in the leg of the patient, the sampling needle tube is inserted into the hole in the leg of the patient; the medical sampling device can avoid puncture path deviation caused by small shaking of the hand when a medical worker holds the medical sampling device for operation, reduces injury risks of adjacent blood vessels and nerves, in addition, uniform rotation of the threaded rod can stabilize the puncture speed of the sampling needle tube, avoids the problem that the force is too large or too small in manual operation, ensures that the sampling tube can reach the preset depth, and improves the sampling efficiency. And repeated puncture steps are reduced.

The invention discloses an anti-shaking fixing support for a skull drilling operation, and relates to the technical field of surgical instruments. The anti-shaking fixing support for the skull drilling operation comprises a support main rod and a base, the base is fixedly installed on the side face of the support main rod, and according to the anti-shaking fixing support for the skull drilling operation, loads generated by impact of a high-speed drill bit and a skull can be greatly counteracted through the rebound force of a radial buffering spring and the flowing buffering effect of hydraulic fluid; shock and shaking caused by direct conduction of impact to the stent are avoided, so that the drilling track is accurately controlled, and the risk of blood vessel and nerve injury caused by deviation of a drilling hole from a preset path is remarkably reduced; on the other hand, due to the stable support state, the operation difficulty of an operator can be relieved, operation deviation caused by shaking in the operation is reduced, meanwhile, frequent impact of vibration on equipment is avoided, the abrasion speed of the equipment is reduced, and the accuracy and safety of the operation process are guaranteed.

This application discloses a novel safety endoscopic thyroid retractor, relating to the field of medical device technology. It aims to address the potential for damage to blood vessels, nerves, and organs within the surgical field during the endoscopic surgical process of inserting a retractor into the thyroid region of the neck and rotating it to expose the surgical field. The thyroid retractor includes a retractor component and a skin tissue perforator. One side of the skin tissue perforator has a groove with graduations on its surface. The end of the retractor component is blunt-tipped and slidably connected to the groove. A pre-established channel is created through the graduated skin tissue perforator, and the retractor component slides along its groove, avoiding the risk of tissue damage from blind insertion. The graduations help quantify the depth of the procedure. The blunt-tipped end of the retractor component prevents tissue puncture during pulling and rotation after insertion.

The invention discloses a nerve block needle used based on an endoscope, and relates to the technical field of endoscope nerve block needles, the nerve block needle comprises an injection needle tube, the injection needle tube is used for anesthetic liquid medicine injection; the extension hose is connected with the injection needle tube, one end of the extension hose is connected with a first hollow plug connected with the injection needle tube, one end of the extension hose is connected with a second hollow plug, a needle head is fixed to the end of the second hollow plug, and the guide sleeve is used for sleeving the outer side of the extension hose and fixing the needle head; the guide sleeve can be bent, the orientation of the needle head is changed, and then the needle head is placed at a target point position. Under the condition of an endoscope, for intercostal nerve block, pain can be relieved by blocking transmission of pain signals from an intercostal innervation area to a central nervous system, the needle inserting depth is accurately controlled by means of the guide sleeve wrapping the extension hose, the problem that an existing clinical simple device forceps holder is unstable is solved, and the operation is simple and convenient. Influence on needle inserting accuracy is avoided, and blood vessel and nerve injury and even bleeding risks are reduced.

The invention relates to the technical field of medical instruments, and particularly discloses a novel intervertebral foramen mirror which comprises a mirror table, and a cavity is formed in the middle of the mirror table; the mirror tube is arranged at the bottom of the mirror table; the liquid pipeline joints are distributed on the outer side of the endoscope tube, and a liquid flowing pipeline communicated with the liquid pipeline joints is arranged in the endoscope tube; the eyepiece is arranged on the outer side of the telescope tube, a focusing knob is arranged on the outer side of the eyepiece, and a lamp post is arranged in the telescope tube; the cold light source interface is arranged on the outer side of the mirror tube and is in contact with the lamp post; and the camera pipeline joint is arranged on the outer side of the mirror tube. In the using process of the novel intervertebral foramen mirror, the problems that in the prior art, due to the fact that the vertical holding angle of a foramen mirror is fixed, operation fatigue is likely to be caused, the water pressure risk is uncontrollable, shielded blood vessels, nerve roots and bony structures cannot be well distinguished, and the accidental injury risk is high in the operation can be solved.