112 results about "Lumbar puncture" patented technology

A device for collecting spinal fluid during a lumbar puncture or other medical procedure includes: a) an upper, generally cup-shaped portion including an open top, an upper cup side wall, an upper cup base plate at a lower end of the upper cup side wall, and a drain hole in the upper cup base plate; b) a lower, generally cup-shaped portion including an open top, a lower cup side wall, and a lower cup base plate at a lower end of the lower cup side wall, the lower cup base plate including a plurality of generally circular openings; wherein the upper, generally cup-shaped portion is removably insertable in and rotatable in the lower, generally cup-shaped portion, and the upper, generally cup-shaped portion includes a rotation mechanism for rotating the upper, generally cup-shaped portion in the lower cup-shaped portion.

The present subject matter relates to medical training methods and models. In one embodiment, the invention provides for devices and methods of training paracentesis procedures. In another embodiment, the subject matter provides for devices and methods of training thoracentesis procedures. In yet another embodiment, the present subject matter provides for a training methods and model for performing lumbar punctures.

One aspect of the present invention relates to a method to control biological fluid flow at a site in a mammal by use of an in situ formed polymer plug. In certain embodiments, the present invention relates to a method to control bleeding following a catheterization procedure, a method to control leakage of cerebral spinal fluid following a lumbar puncture, a method to seal a fistula, or a method to control the flow of serous fluid after a lymphadenectomy. In certain embodiments, the polymer plug is generated in situ by temperature changes, pH changes or ionic interactions. In certain embodiments, the polymer plug comprises at least one optionally purified reverse thermosensitive polymer.

The present invention discloses a lumbar puncture virtual simulation and training system supporting haptic interaction, comprising a calculating apparatus and a haptic interaction device. A display device is connected to the calculating apparatus. The calculating apparatus is connected to the haptic interaction device, and is configured to transmit an action signal that is made by a user and is detected by the haptic interaction device to the calculating apparatus. The calculating apparatus substitutes the received signal to a preset model to perform real-time simulation calculation, to obtain an acting force of a puncture needle, and transmits the acting force to the haptic interaction device for perception of the user. In addition, a real-time virtual puncture process interface is generated on the display device according to a simulation calculation result, so as to implement lumbar puncture virtual simulation and training. The system can simulate a resistance change in a puncture process, and can significantly reduce costs and the period of medical staff training.

Lumbar punctures (LP) are potentially hazardous when the cerebrospinal fluid (CSF) pressure is elevated. CT is not always helpful to anticipate elevated intracranial pressure and may not be available each time a LP must be preformed. Disclosed is a simple pressure-locking valve which is attachable to an LP needle. The pressure-locking valve closes off the flow of fluid when the pressure of the fluid exceeds a value which can be preset to the pressure-locking valve.

The invention belongs to the medical teaching equipment technical field and relates to a fully-automatic multi-functional integrated puncture training computer dummy. The fully-automatic multi-functional integrated puncture training computer dummy comprises a high-simulation human body model, a position-automatic changing experimental table, puncture cavities, modules, arteriovenous veins, a liquid injection automatic control device, a fully-automatic arterial pulse simulator and a microcomputer controller. The dummy is characterized in that the high-simulation human body model is installed on the position-automatic changing position experimental table and is provided with various puncture cavities / modules such as pneumothorax, hydrothorax and abdominocentesis modules which are all connected with the microcomputer controller and / or a micro water pump / air pump; double-layer metal mesh electrodes are distributed on the neck, thoracic puncture and lumbar puncture positions of the dummy; the dummy is further provided with kidney, bladder, lymph gland and bone marrow puncture cavities / modules as well as a variety of puncturable central veins and peripheral veins; and arteries are connected with a fully-automatic blood circulation simulator. With the dummy adopted, dozens of puncture items can be provided; puncture position change, liquid injection, gas injection and artery pulsing are completely automated; and sound-light alarms can be given out automatically; life-like simulation effects can be realized; and teaching effects can be significantly improved.

The invention discloses a lumbar puncture auxiliary device comprising a lifting bed; a knee pressing device, a hip pressing device, a leg pressing device, an inflatable pillow and a puncture positioning bracket are mounted on the lifting bed; the lifting bed comprises a bed frame cross beam, four hydraulic lifting bed legs and a bed plate, the four hydraulic lifting bed legs are connected with thebed frame cross beam, the bed plate is arranged on the bed frame cross beam, a notch is formed in the left side of the bed plate, and the notch is a medical staff working position; two notches are formed in the lower part of the bed plate. By adopting of the knee pressing device, the hip pressing device and the leg pressing device, knees, hip and legs of a patient can be fixed in sequence, and the inflatable pillow can be adjusted according to the requirements of the patient after the patient sleeps on the inflatable pillow; a hip lead screw driver and a knee lead screw driver are one of manual turntable drivers or motor drivers, and the lumbar puncture auxiliary device can be adjusted according to the physique of the patient, and is practical and convenient.

The present invention provides a tool and method for performing a lumbar puncture. The tool may include a first arm and a second arm and may form a T-shape. The first arm may be longer than the second arm. Also included is a projection extending from one of the arms. The projection has a downward angle and a passageway that is sized to accommodate a needle. The tool is configured to maintain the perpendicular placement of a needle between vertebrae and a preferred angle of insertion of about 15° during a procedure.

The invention relates to a tumor locating method and system for tumor puncture. The method comprises the following steps of 1, making locating mark points on the peripheral body surface skin of a tumor part of a patient, collecting two images of the tumor part of the patient from different angles, and obtaining the spatial position information of a geometric center point of the tumor part relativeto the locating mark points by means of a binocular vision algorithm; 2, performing CT scanning on the tumor part of the patient, establishing a three-dimensional model of a tumor according to a CT scanning image, and acquiring body posture information of the patient during CT scanning on the tumor part of the patient. By adopting the locating method, the tumor can be precisely located, a puncture path can be conveniently planned by medical staff, the puncture efficiency can be improved, and the radiation injury can be reduced.

The invention relates to the field of medical equipment, in particular to a body position fixing bed for lumbar puncture of children. The fixing bed comprises a leg bending assembly, a lumbar vertebrapositioning assembly, an attention transfer assembly and a supporting bed plate; a bed head plate is arranged at the top edge of the supporting bed plate, a chest supporting assembly is arranged between the attention transfer assembly and the leg bending assembly, the lumbar vertebra positioning assembly includes a head limiting member and a lumbar vertebra positioning member, the leg bending assembly includes a knee fixing member and a leg bending member, and an angle adjustment assembly is arranged at the bottom of the supporting bed plate. The fixing bed has the advantages that legs of a child can be bent and knees of the child can be fixed through the leg bending assembly, the head of the child can be limited and the waist of the child can be positioned through the lumbar vertebra positioning assembly to assist medical workers to complete puncture operation, and a display screen can play an animated cartoon at a suitable position through the attention transfer assembly to transferthe attention of the child.

The invention relates to the field of medical instruments, in particular to a digital pressure gauge for lumbar puncture with controllable cerebrospinal fluid. The gauge comprises a lumbar spinal needle connecting end, a cerebrospinal fluid connecting end, a pressure sensor and a numeric display meter and is characterized in that the interior of a housing of the gauge is partially narrowed to form a valve seat; the valve seat divides an inner cavity of the housing into a cerebrospinal fluid drainage cavity and a pressure detection cavity; when a valve head is closely attached to the valve seat, a channel between the cerebrospinal fluid drainage cavity and the pressure detection cavity is blocked; when the valve head is away from the valve seat, the cerebrospinal fluid drainage cavity communicates with the pressure detection cavity; and the lumbar spinal needle connecting end and the cerebrospinal fluid connecting end are arranged; and the cerebrospinal fluid connecting end is a section of 90-degree bent pipe. Compared with the prior art, the digital pressure gauge for lumbar puncture with the controllable cerebrospinal fluid has the following advantages: pressure value can be read at any time before collection of cerebrospinal fluid and during collection of cerebrospinal fluid; intracranial pressure valve after lumbar puncture can be displayed; and the digital pressure gauge can play an important role in guiding the positions and medicine use for a patient who takes a rest after lumbar puncture.

The invention belongs to the technical field of medical instruments, and relates to a child lumbar puncture positioning and fixing device and a using method thereof. The main structure of the device comprises an iliac spine positioning patch, a length adjusting buckle, a length adjusting belt, a length adjusting buckle switch, a length adjusting belt handle, a puncture fixing frame, spine positioning points, sliding rails, a large support, a T-shaped puncture sleeve, a small support, a spinous process positioning suction cup, a puncture needle, a puncture needle core, a fixing lantern ring, afixing clamping groove support, a buckle push rod, a fixing lantern ring locking switch, a fixing clamping groove, a suction cup connecting arm, a sliding block and small support telescopic rods, wherein the spine positioning points are arranged on the two sides of the puncture fixing frame respectively, the sliding rails are correspondingly arranged on the other two sides of the puncture fixing frame respectively, the small support telescopic rods are installed at the two ends of a cross rod of the small support respectively, and the spinous process positioning suction cup is fixedly arrangedat the other end of the suction cup connecting arm. The positioning puncture point is accurately and rapidly determined, the puncture stability is improved, the puncture success rate is increased, the psychological fear of a child patient is relieved, operation and popularization are convenient, and the application environment is friendly.

A device for collecting spinal fluid during a lumbar puncture or other medical procedure includes: a) an upper, generally cup-shaped portion including an open top, an upper cup side wall, an upper cup base plate at a lower end of the upper cup side wall, and a drain hole in the upper cup base plate; b) a lower, generally cup-shaped portion including an open top, a lower cup side wall, and a lower cup base plate at a lower end of the lower cup side wall, the lower cup base plate including a plurality of generally circular openings; wherein the upper, generally cup-shaped portion is removably insertable in and rotatable in the lower, generally cup-shaped portion, and the upper, generally cup-shaped portion includes a rotation mechanism for rotating the upper, generally cup-shaped portion in the lower cup-shaped portion.

The invention relates to a lumbar puncture model, in particular to a model aiming at lumbar puncture. The lumbar puncture model mainly refers to the lumbar puncture model from a hip to the upper end of a thigh, and is characterized in that a ligament consumed material feeding device, a skin consumed material feeding device, a skin consumed material pressing device and a skin consumed material leading device are fixedly arranged on a bracket, wherein an included angle exists between a middle transverse shaft of the ligament consumed material feeding device and a central shaft of a middle rotating shaft of the skin consumed material pressing device. The lumbar puncture model disclosed by the invention utilizes the self-designed ligament consumed material feeding device, the skin consumed material feeding device, the skin consumed material pressing device and the skin consumed material leading device to change installation and use modes of the original ligament consumed material and skin consumed material, so that the utilization rate is greatly improved; and the lumbar puncture model has the advantages of convenience for use, consumed material saving, and low cost.

The invention discloses a thoracic lumbar puncture positioning device, and relates to the field of medical instruments. The device comprises a circular truncated cone body with the bottom face being a plane and the front face being an arc face. The edge of the circular truncated cone body is provided with a groove. Eight positioning holes are formed in the circular truncated cone body. The opening walls, at one end of the arc face, of the positioning holes are ramps with wide front portions and narrow rear portions. The problems that thoracic lumbar positioning puncture difficulty is large, doctors cannot easily master the operation, the probability that complications are caused to a patient is large due to the fact that the puncture operation time is long, the patient and the doctors in the operation suffer the large amount of iatrogenic X ray radiation, and the potential or accumulated radiation injury possibility is large are solved.

The invention relates to an automatically adjustable lumbar puncture manikin, comprising a manikin. The manikin comprises an upper body portion at the upper part, a waist and hip portion at the middlepart, a lower body portion at the lower part. The waist and hip portion has flexibility. The lower body portion is connected to a walking mechanism which drives the lower body portion to move in order that the waist and hip portion of the manikin stretches or bends. A lumbar vertebrae model is disposed in the waist and hip portion, and is composed of multiple linearly-arranged vertebra models. Intervertebral spaces are arranged between the vertebrae models. The vertebra models are stretched at the bending outer side under the effect of the bending of the waist and hip portion. The automatically adjustable lumbar puncture manikin is simple in structure and convenient to operate, can be automatically adjusted to different postures, automatically adjusts a simulated standardized patient froma natural stretch state to an arch-back hand- knee-holding state, simulates the lumbar kyphosis to widen the intervertebral spaces, and improves the operation efficiency and the degree of simulationof the simulated puncture.

The use of an iontophoresis electrode assembly for delivery of a drug formulation is described. The drug formulation includes an anaesthetic and a vasoconstrictor. It is administered to a patient prior to a procedure to produce clinically acceptable depth and duration of dermal anaesthesia at the portion of skin to subject to a painful procedure or to reduce or eliminate pain. The procedure is one selected from the group consisting of venipuncture, IV cannulation, needle aspirations, body piercings, blood donations, electrolysis, tattoo removal, tattoo application, injections, dermabrasion, skin peeling, high velocity particle ablation, pace maker implantation, pace maker replacement, epidural puncture, lumbar puncture, regional nerve blocks, skin harvesting, small skin incisions, skin biopsies, circumcisions or excisions. The iontophoresis electrode assembly may also be used to reduce or temporarily eliminate neuropathic pain.

The invention discloses a pressure monitoring and releasing device for cerebrospinal fluid. The pressure monitoring and releasing device is mainly applied to cerebrospinal fluid puncture needed in a clinical diagnosis and treatment process, for example, during lumbar puncture, pressure test of the cerebrospinal fluid is performed, a cerebrospinal fluid sample is retained for laboratory examination, and the like. The pressure monitoring and releasing device is characterized by replacing a traditional glass pressure testing tube in the lumbar puncture process; the required cerebrospinal fluid sample amount is retained by using a same device, pressure reading of the cerebrospinal fluid as well as visibility and quantization of the retained cerebrospinal fluid is realized, the operation flow is simplified, and puncture complication is avoided.

The invention discloses a medical treatment nursing bed for neurologic patients. The medical treatment nursing bed comprises a bed body, a restless patient control device, a lumbar puncture patient brake device, a transfusion safety control device, a lifting device and a moving device. The invention aims at providing the medical treatment nursing bed for the neurologic patients, which is user-friendly in design, novel in structure, convenient to use, safe, flexible, multipurpose and capable of relieving the strengthen of the nursing work. The bed body is designed into a vehicle type and has power-driven performances; the restless patient control device consists of blocking tubes, a hook sleeve, a restraint strap and a double-shaft strap penetrator, wherein the blocking tubes are lower than a bed board frame, so that the patient is prevented from dropping from the bed, and the restless patient control device also can be used as the control device; the turning over of the patient and the bed changing can be realized by a lifting mechanism; the transfusion time controller is arranged for realizing automatic alarm before the transfusion liquid is completely dripped; and a transfusion heater is arranged for preventing causing discomfort of the patient due to extremely low transfusion temperature. The medical treatment nursing bed for the neurologic patients is suitable for clinical application of treating and nursing a neurologic long-term bed patient, a restless patient, a lumbar puncture patient and a postoperative rehabilitation patient.

The invention discloses a cerebrospinal fluid collection method. The method comprises the following steps: (1) carrying out animal anesthesia; (2) carrying out shaving and disinfection of a lumbar region of the back of an animal; (3) coating the puncture part of the animal with a wound towel; (4) carrying out puncture on the lumbar region of the back of the animal; (5) when a syringe needle punctures a subarachnoid space of the animal and generates a fall feeling, stopping inserting the syringe needle; (6) connecting an injector and collecting animal cerebrospinal fluid; and (7) pulling out the syringe needle after operation is ended, pressing the puncture part with a dry cotton ball, putting the animal back to a cage, and monitoring the animal until the animal is sober from anesthesia and the action is normal. The cerebrospinal fluid of the animal is collected through a lumbar puncture method; and the cerebrospinal fluid collection method is small in wound to the animal, simple and fast to operate and low in demands on equipment, materials and places.

The invention provides a lumbar puncture operation fixing frame. The lumbar puncture operation fixing frame comprises an operation platform, telescopic rods are arranged at the two sides of the operation platform in the height direction, a top plate is arranged at the tops of the telescopic rods, three slide grooves are formed in the lower surface of the top plate, slide blocks are inset in all the three slide grooves, locating columns are arranged at the bottoms of the slide blocks, and multiple fixing holes are formed in the portion, corresponding to the operation platform surface, of each locating column, respectively a cervical vertebra locating column, an abdomen locating column and a leg locating column, the cervical vertebra locating column and the leg locating column are both provided with pipe sleeves, and fixing plates are connected to the sides of the pipe sleeves through springs. The mental tension of a patient during an operation can be overcome, it is guaranteed that thepatient keeps the standard position all the time, the working difficulty of medical staff is reduced, and therefore, the operation efficiency and quality during a puncture operation are improved.

The invention relates to a lumbar puncture operation fixing rack, which comprises an operation table, wherein telescopic rods are arranged in the height direction at the two sides of the operation table; the top ends of the telescopic rods are provided with a top plate; the lower surface of the top plate is provided with three slide grooves; a slide block is arranged in each of the three slide grooves; the bottom end of each slide block is provided with a positioning post; a plurality of fixing holes are formed in positions, corresponding to a tabletop of the operation table, of the positioning posts; the three positioning posts are respectively a cervical vertebra part positioning post, an abdomen part positioning post and a leg part positioning post; a pipe sleeve is arranged on each ofthe cervical vertebra part positioning post and the leg part positioning post; and the edge part of each pipe sleeve is connected with a fixing plate through a spring. The lumbar puncture operation fixing rack has the advantages that the nervous mood of a patient during the operation can be relieved; the patient is enabled to always maintain the standard body posture; and the work difficulty of medical personnel is reduced, so that the operation efficiency and quality of the puncture operation are improved.

The invention relates to a lumbosacral puncture and drainage device with a controllable flow rate of an air bag, which comprises a trocar with an outer needle and a needle core, a three-way valve, a sample collection tube and a sample collection bag, the needle core is located inside the outer needle, and the three-way One port of the valve is connected to the sample collection tube through the diversion tube, and the sample collection tube and the sample collection bag are connected through the diversion tube. After the trocar punctures into the spinal cavity, it exits the needle core, and the trocar is inserted into the soft tube with the guide wire inside. Catheter, the thickness of the guide wire matches the inner diameter of the soft catheter. After the guide wire enters the spinal cord cavity, it exits the outer needle. After the guide wire guides the soft catheter into the spinal cord cavity, it exits the guide wire. Connection, the end of the soft catheter inserted into the spinal cavity is provided with an inflatable air bag, and a flow control valve is provided between the three-way valve and the sample collection tube. The soft catheter of the lumbosacral puncture and drainage device is easier to insert into the spinal cavity without breaking and slipping off, and can accurately control the flow of spinal fluid.

The invention discloses a pressure-measuring fluid-discharging injection gun for lumbar puncture. A cerebrospinal fluid collection trigger and a cerebrospinal fluid discharge trigger are arranged on an operation gun; the cerebrospinal fluid collection trigger is slidably hinged to the cerebrospinal fluid discharge trigger via a connection structure; a muzzle end of the operation gun is provided with a one-way valve injector; a push rod of the one-way valve injector is fixedly connected to the cerebrospinal fluid collection trigger; an inlet end of the one-way valve injector is provided with acollection one-way valve, and an outlet end of the one-way valve injector is provided with a discharge one-way valve; the inlet end is in airtight communication with a puncture needle; the cerebrospinal fluid collection trigger is used to form a negative pressure in the one-way valve injector; and the cerebrospinal fluid discharge trigger is used to form a positive pressure in the one-way valve injector through the connection structure. The pressure-measuring fluid-discharging injection gun provided by the invention achieves dynamic monitoring of a cerebrospinal fluid pressure, preservation ofa cerebrospinal fluid sample, and injection of a contrast agent and a drug at a time, and implements optimization of pressure measurement, fluid discharge and injection processes of the lumbar puncture.

The invention relates to an infant positioning device for stabilizing and maintaining an infant in a fixed position for a lumbar puncture procedure. The device consists of a frame with openings for the infant's face and abdomen to support the infant in the proper position for the procedure and allow for unimpeded ventilation, a component of the frame to secure and stabilize the infant within the frame to prevent movement during the procedure, and an attachment stand to the frame that allows the frame to be free-standing.

The invention relates to the technical field of machines, in particular to a fixing device for lumbar puncture. The fixing device comprises a base, a back plate is arranged at the rear end of the base, a shoulder fixing plate is arranged at the right end of the back plate, a hip fixing plate is arranged at the left end of the back plate, and a chest fixing plate is arranged right in front of the back plate. The fixing device for lumbar puncture can be fixed to a puncture bed, and through the back plate, the shoulder fixing plate, the hip fixing plate and the chest fixing plate, a patient can be clamped and fixed inside the fixing device; by adjusting the distance between the shoulder fixing plate and the hip fixing plate, the fixing device adapts to patients with different body shapes, itis unnecessary to fix the body position of the patient by multiple persons, the patient also does not need to consume own physical power to keep a posture, and therefore a lot of labor is saved; in addition, the patient cannot move randomly easily in the fixing device, the surface of the fixing device is soft, people feel comfortable when touching the fixing device, a doctor can conveniently, rapidly and accurately conduct puncture operation, the speed of puncture operation is effectively increased, the efficiency of puncture operation is effectively improved, puncture time is shortened, and the pressure of the patient is relieved.

The invention discloses a tumor puncture localizing needle. The tumor puncture localizing needle is characterized by comprising a sheathing canal (1) and a grasping needle (2), wherein the tip end of the sheathing canal (1) is of a needle-shaped structure and the tail end is provided with operating handles (5); the grasping needle (2) sleeves in the sheathing canal (1); elastic grabbers (3), which are represented as umbrella ribs when expanded, are connected to the front end of the grasping needle (2); the elastic grabbers (3) can be accommodated in the sheathing canal (1); an operating end (4) is arranged at the other end of the grasping needle (2); a small sheathing canal (6) is arranged at the tail end of the grasping needle (2); the elastic grabbers (3) are be gathered into a bundle, so that the elastic grabbers (3) can move in and out of the tail end of the sheathing canal (1) conveniently; small erasers (7) are arranged on the outer wall of the sheathing canal (1); the small erasers can move up and down on the outer wall of the sheathing canal (1); and the small eraser are in charge of controlling a depth of the sheathing canal (1) pierced into a human body. The tumor puncture localizing needle provided by the invention is simple in structure and convenient to use, and the speed and the accuracy of tumor puncture can be greatly enhanced.

The invention discloses an AR training device for lumbar puncture, and belongs to the technical field of lumbar puncture practice tools. An AR training device for lumbar puncture comprises a box body, two compression springs B are symmetrically and fixedly arranged between the front wall of a rear groove and the rear wall of an edge groove, two elastic bands are symmetrically and fixedly arranged at the two ends of the rear wall of an AR glasses body, and a middle groove is formed in the middle of the rear wall of a connecting block located on the right side. Two clamping blocks are fixedly arranged on the outer wall of the connecting block located on the left side in an up-down symmetrical structure, and clamping grooves are formed in the positions, opposite to the clamping blocks, of the inner wall of the middle groove. According to the device, the simulation structure consistent with the human lumbar vertebra structure is arranged, through the arrangement of the structures and cooperation with the AR glasses body, the device can enhance the visual simulation degree in the practical training of students, the simulation performance in the touch sense can be further improved, the students have the sense of reality when searching for the puncture position, and the training efficiency is improved. The fitness between practical training and reality can be effectively enhanced, and the medical skill level of students can be improved.

A lumbar puncture positioner is composed of a base, a positioning plate, a flexible belt and a fixing belt. A laser tube, a gravity sensor, a control circuit and a loudspeaker are arranged on the positioning plate. During use, the positioner is fixed to the proper distance above a puncture point, a power source is powered on, a position adjusting knob is adjusted to enable the positioning plate tobe horizontal, it is ensured that a laser beam and the spine line coincide, and an operator feeds a lumbar spinal needle from the puncture point along the laser beam until puncture succeeds. The advantages of being high in locating precision, low in cost and easy to popularize are achieved.