40 results about "Lumbar puncture needle" patented technology

The invention discloses an integrated safe lumbar puncture device used clinically. The integrated safe lumbar puncture device is mainly applied to the conditions that cerebrospinal fluid puncture needs to be conducted in the clinical diagnosis and treatment process, for example, the cerebrospinal fluid pressure test is conducted during lumbar puncture as well as a cerebrospinal fluid sample is remained to perform laboratory examination. The integrated safe lumbar puncture device is characterized in that the traditional lumbar puncture needle can be replaced; the cerebrospinal fluid pressure test can be realized in the same device; the cerebrospinal fluid sample is remained according to the requirement and intrathecal injection is conducted; cerebral hernia caused by high cranial pressure excessive drainage in the lumbar puncture process can be avoided; the operation processes of sample retention, pressure test and intrathecal injection can be completed in the same device; the operationflow is simplified; puncture complications are avoided; and the safety of patients and operators is guaranteed.

The invention discloses an intelligent lumbar puncture needle, comprising a needle tube; the inside of the needle tube is of hollow structure; a puncture part of the needle tube is provided with a tip; a sensor is fixed to the surface of the tip; the surface of the sensor is provided with a detection electrode that senses the puncture position; the sensor is connected with a console or a handhelddevice through a detection circuit. Intelligent operations allow the puncture needle to precisely and effectively arrive at the puncture position such that optimal puncturing and treatment are achieved. The intelligent lumbar puncture needle is very innovative and has good medical value and a promising marketing prospect.

The invention discloses a device used for airtight lumbar puncturing and cerebrospinal fluid replacing. The device comprises a lumbar puncture needle, an injector and a connector used for connecting the lumbar puncture needle and the injector. A communicating device with four communicating pipes is arranged in the connector. The device has the advantages that functions are multiple, use is safe and convenient, the device is used for the lumbar puncturing and is good in airtightness and sterile, direction dividing operation can be achieved, the risk of intracranial infection caused by lumbar puncturing and intrathecal liquid injecting can be effectively avoided, the flow speed of the cerebrospinal fluid can be controlled, the risk of the formation of cerebral hernia can be avoided, intrathecal liquid injecting can be conducted through a side hole in the device and the injector, different medicine can be injected, the flow speed of liquid medicine can be controlled through a valve, the pressure in the medicine injecting process can be controlled through a pressure regulating valve, and intrathecal liquid injecting can be reasonably and safety conducted.

The invention belongs to the technical field of anesthesia puncturing, and particularly relates to a novel disposable subarachnoid space rotation type cerebrospinal fluid collecting, displaying and pressure measuring device. The novel disposable subarachnoid space rotation type cerebrospinal fluid collecting, displaying and pressure measuring device comprises a rotary collecting device and a pressure measuring device; an anesthesia spinal needle is connected with a lumbar puncture needle; the lumbar puncture needle is connected with the rotary collecting device; and the rotary collecting device is connected with the pressure measuring device. The rotary collecting device comprises a connecting end, a collecting tube fixedly connected with the connecting end and a collecting tube located at the lower portion of the collecting tube. The pressure measuring device comprises a pressure measuring tube; a breathable thin film is arranged at one end of the pressure measuring tube, a floating indicator is arranged inside the other end of the pressure measuring tube; the other end of the pressure measuring tube is connected with the collecting pipe; and scale marks are arranged on the inner wall of the pressure measuring tube. The novel disposable subarachnoid space rotation type cerebrospinal fluid collecting, displaying and pressure measuring device has the beneficial effects of being capable of accurately measuring the cerebrospinal fluid pressure and guaranteeing that cerebrospinal fluid does not escape in the pumping process; in addition, the cerebrospinal fluid can be pushed back; operation is simple and convenient; and the industrial production is facilitated.

The invention discloses a lumbar puncture needle, which comprises a needle, wherein the needle is provided with a tubular needle cavity, the tail of the needle is fixedly arranged on a handle, and the handle is provided with a cavity and a valve handle; the cavity consists of a handle cavity, a tubular handle cavity and a threaded through hole, the left end of the handle cavity communicates with the tubular handle cavity, the right end of the handle cavity communicates with the threaded through hole, the tubular needle cavity communicates with the tubular handle cavity, and the left end of the handle cavity is a conical tubular cavity surface; the valve handle comprises a threaded rod, the left end of the threaded rod is provided with an integrated valve handle cone, the right end of the threaded rod is provided with an integrated rotating handle, the threaded rod runs through the threaded through hole, the outer surface of the valve handle cone is matched with the conical tubular cavity surface, and the rotating handle is exposed on the right side of the handle; the bottom of the handle is provided with a fluid outlet seat, the top of the handle is provided with a pressure-measuring seat, the fluid outlet seat is provided with a valve, and the pressure-measuring seat is connected with a pressure-measuring device. The lumbar puncture needle can ensure that whether cerebrospinal fluid flows out or not can be directly viewed, can accurately control the flow of cerebrospinal fluid, and is easy and convenient to operate and safe to use.

A safe combined puncture epidural anesthesia puncture needle is mainly composed of an epidural puncture needle, an epidural puncture needle core, a lumbar puncture needle and a lumbar puncture needle core. The arc-shaped crook of the epidural puncture needle is provided with a lumbar puncture dorsal pore. The epidural puncture needle core is composed of a safety protection device at the front part, a negative pressure conduction device in the middle, a negative pressure display device at the rear part, an elastic forward device at the tail part and a needle core base, and an epidural puncture needle core is connected with an lumbar puncture needle rear base in a detachable fixing manner. Apart from achieving the purpose of identifying the epidural space doubly, the puncture needle can avoid the needle point of the epidural puncture needle and the epidural conduit entering the subarachnoid space by the needle hole of the lumbar puncture needle, the lumbar puncture needle is prevented from being broken, and the lumbar puncture needle is conveniently fixed in the epidural puncture needle.

The invention discloses a lumbar cistern drainage tube stealthy indwelling guide device. The device solves the problem that drainage tube indwelling has short crouchonecm and cannot be maintained fora long time in the prior art, and has the advantages that a lumbar puncture needle is convenient to withdraw, and the crouchonecm of a drainage tube in subcutaneous tissue can be lengthened. Accordingto the technical scheme, the lumbar cistern drainage tube stealthy indwelling guide device includes an outer sleeve needle, a first member and a second member, wherein one end of the outer sleeve needle is sharp and facilitates puncture, and the outer sleeve needle is internally provided with a tube cavity and is provided with a side seam that is perpendicular to the tube cavity; one end of the first member is provided with a hook, and the hook can hook the lumbar puncture needle and/or the lumbar cistern drainage tube; the second member cooperates with the first member, the two members can enter the tube cavity together, and one end of the second member can be abutted against the inner wall of the tube cavity.

A lateral and vertical locator for the lumbar puncture needle is composed of a fixing unit, a base plate to be stuck on skin by non-drying adhesive, two parallel plates perpendicular to said base plate, and a needle advancing slot on said base plate between two parallel plates.

The invention belongs to the field of medical apparatuses, and in particular relates to a treatment type lumbar puncture needle capable of detecting oxygen partial pressure and biochemical indexes ofcerebrospinal fluid. The treatment type lumbar puncture needle comprises a needle head 1, a needle tube 2, a pushing component 3, a guide wire 4, a needle tube connector 5, a liquid guide tube 6, a liquid collector 7 and an adaptive connector 8, wherein the needle head 1 has a hollow cavity, and scales 101 are arranged on the needle head 1; and the pushing component 3 is arranged in the needle tube 2, the needle head 1 is connected with the front end of the needle tube 2, the needle tube connector 5 is arranged on one side, close to the needle head 1, of the needle tube 2, one end of the liquid guide tube 6 is connected with the needle tube connector 5, and the other end of the liquid guide tube 6 is connected with the liquid collector 7. For the lumbar puncture needle disclosed by the invention, the cerebrospinal fluid can be collected under the condition that the air is isolated, the operation is simple and convenient, the use is safe, the purpose of accurately measuring the oxygen partial pressure and the biochemical indexes can be achieved, the on-site or off-site measurement for the oxygen partial pressure and the other biochemical indexes of the cerebrospinal fluid can be realized, and meanwhile, the functions of medicine injection and liquid exchange are also available.

The invention belongs to the medical field, and particularly relates to a cerebrospinal fluid detection device used for intraspinal anesthesia. The cerebrospinal fluid detection device comprises a device body. A liquid entering end is arranged at one end of the device body. A vent hole is formed in the other end of the device body. A reagent detection chamber is arranged in the device body and is internally provided with pH test paper. A contrast chamber is arranged beside the reagent detection chamber. The liquid entering end and the reagent detection chamber are communicated with each other through a liquid dropping hole. The vent hole and the reagent detection chamber are communicated through a gas guide hole. The cerebrospinal fluid detection device overcomes the defect for the first time that normal saline and cerebrospinal fluid can not be identified clinically, whether fluid flowing out of a lumbar puncture needle is cerebrospinal fluid or normal saline can be identified, and doctors can confirm the position of the lumbar puncture needle. Meanwhile, the cerebrospinal fluid detection device has the advantages of being simple, visual and rapid in flow.

The invention relates to a lumbar puncture bed enabling convenience in fixation. The lumbar puncture bed comprises a supporting plate, a lying plate, a fixing mechanism and four supporting frames; thefixing mechanism comprises a translational movement assembly, a translational movement plate, a steering assembly, a telescopic assembly, a lifting plate and two fixing plates; one side of the fixingplate, which is adjacent to a notch, is provided with a plurality of fixing units; the fixing unit comprises an electromagnet, a magnetic plate, a connecting unit, a movement plate, a movement rod, afixing block and two positioning units; a through hole is formed in the fixing plate; and a plurality of fastening units are arranged on the fixing plate. According to the lumbar puncture bed enabling convenience in fixation of the invention, an aseptic hole-towel on the lumbar vertebra of a patient can be fixed through the fixing mechanism, so that the aseptic hole-towel can be prevented from falling off; a lumbar puncture needle can be fastened through the fastening units, so that the lumbar puncture needle can vertically and stably puncture the lumbar vertebra of the patient, and the smooth proceeding of lumbar puncture can be ensured; and a signal processing circuit has a gain adjustment function and can meet the acquisition of input signals of different levels, and therefore, the reliability of the signal processing circuit can be improved.

The invention relates to a novel lumbar puncture needle capable of realizing semi-automatic needle insertion, belongs to the technical field of medical instruments, solves the problems of needle head displacement and too deep needle insertion caused by manual needle pushing in the existing lumbar puncture, and enables the needle insertion process to be more accurate and stable. The novel lumbar puncture needle structurally comprises a needle head, an electromagnetic three-way valve, an optical fiber sensor, a pressure sensor, a sensor shell, a stepping motor, a needle inserting track and a puncture needle shell, wherein the needle head is connected with the electromagnetic three-way valve. After cerebrospinal fluid flows in, three functional states are realized along with reversing of a valve core; the optical fiber sensor can be used for directly measuring the pressure of the cerebrospinal fluid; the stepping motor drives the needle head to slowly advance along a needle inserting track at a constant speed, so that needle inserting errors caused by manual needle pushing are avoided; and the pressure sensor measures the needle insertion resistance and provides a judgment basis for the needle insertion depth. Through semi-automatic reversing of the electromagnetic three-way valve, measurement of the pressure of the cerebrospinal fluid by the optical fiber sensor, constant-speed slow needle insertion driven by the stepping motor, and real-time reflection of needle insertion resistance by the pressure sensor, accurate and efficient lumbar puncture operation is realized.

The invention discloses a lumbar puncture needle capable of achieving puncture depth feedback and real-time cerebrospinal fluid pressure monitoring. The lumbar puncture needle comprises a measuring system and a puncture needle body. According to the measuring system, a method for detecting cerebrospinal fluid based on impedance and liquid pressure is designed; and the puncture needle main body comprises a puncture needle and a needle body, the puncture needle comprises an outer needle and an inner needle, an insulating coating is arranged in the outer needle, and the outer needle and the inner needle form a closed circuit with the measuring system through an electric lead. The lumbar puncture needle has the advantages that an alarm prompt can be given out when the puncture needle head makes contact with the lumbar vertebra subarachnoid space cerebrospinal fluid, the pressure of the cerebrospinal fluid can be monitored in real time in the cerebrospinal fluid reserving process, and the success rate and safety of the lumbar puncture operation can be improved.

The invention discloses an integrated safety lumbar puncture outfit. The integrated safety lumbar puncture outfit is formed by a puncture unit, a cerebrospinal fluid circulating unit, a safety protection unit, and a machine housing. The integrated safety lumbar puncture outfit is mainly applied to needed conditions that a cerebrospinal fluid pressure test which needs to perform lumbar puncture isperformed in clinic diagnosis and treatment processes, a cerebrospinal fluid sample is reserved to perform laboratory examination, and intrathecal injection is performed through subarachnoid space andthe like. Compared with a traditional lumbar puncture needle, the integrated safety lumbar puncture outfit is capable of realizing the cerebrospinal fluid pressure test and the intrathecal injectionin the same device, reserving the cerebrospinal fluid sample according to the need, and controlling a release speed of cerebrospinal fluid, thereby avoiding a cerebral hernia risk caused by uncontrollable rapid cerebrospinal fluid release in a lumbar puncture process, protecting life safety of a lumbar puncture patient, and simpler and more healthful in operation.

The invention discloses a lumbar vertebral puncture needle assembly with positioning and color rendering functions, including mating guide needles, a lumbar puncture needle and a needle core, the needle core is separated from the inner wall of the lumbar puncture needle, the peripheral surface of the lumbar puncture needle is provided with a plurality of perforations, a lead pin is fixedly arranged in that position seat, the positioning seat is a transparent plastic seat, the bottom surface of the positioning seat is connected with a medical adhesive tape, the positioning seat is provided witha vertical through hole arranged coaxially with the guide needle, A lumbar vertebral puncture needle passes through a vertical through hole and is matched with a guide needle. The positioning seat comprises a color developing base and a drainage top seat, wherein the color developing base is provided with a color developing groove communicated with a vertical through hole, the color developing groove is filled with a color developing liquid for cerebrospinal fluid, a communication port is provided on the drainage top seat, and the drainage top seat is provided with a rotary switch matched with the communication port. The invention has the advantages of accurate and stable positioning, convenient drainage, convenient observation of the puncture effect through the color developing base, andno need of frequently pulling and inserting the needle core.

The invention relates to a lumbar spinal needle capable of preventing liquid leakage. The lumbar spinal needle comprises a needle tube and a needle core, wherein a notch connected with a piezometer tube or a collecting tube is formed in a needle tail part of the needle tube; a ''T''-shaped pore passage is formed in the needle tail part, comprises a main pore passage penetrated by the needle core and a branched pore passage communicating with the notch and is divided into a main pore passage front-side part, a main pore passage tail-side part and the branched pore passage by taking a junction of the main pore passage and the branched pore passage as a border; the pore diameter of the main pore passage tail-side part is larger than the outer diameter of the needle core, a one-way valve assembling slot is formed in the main pore passage tail-side part, and a silica gel one-way valve is fixedly mounted in the one-way valve assembling slot; and a switch type one-way valve is mounted in thebranched pore passage. According to the lumbar spinal needle, an opening in the tail of the needle tube can be relatively advantageously closed in a paracentesis operation process, and the loss of cerebrospinal fluid in a lumbar spinal paracentesis process can be effectively controlled.

The invention provides a single-cavity two-channel combined spinal-epidural anesthesia integrated puncture needle. The single-cavity two-channel combined spinal-epidural anesthesia integrated puncture needle comprises a base and a needle tube. The needle tube is fixed to the base. The base is provided with channels communicated with the needle tube. The needle tube is hollow, and an epidural catheter and/or an inner cavity through which a lumbar spinal needle penetrates are formed. The external diameter of the lumbar spinal needle ranges from 0.45 mm to 0.55 mm, and the external diameter of the epidural catheter ranges from 0.55 mm to 0.9 mm. By the adoption of the single-cavity two-channel combined spinal-epidural anesthesia integrated puncture needle, epidural anesthesia and lumbar anesthesia can be conducted, and lumbar anesthesia and implantation of the epidural catheter can be conducted at the same time.

The invention relates to the technical field of medical appliances, in particular to a cerebrospinal fluid extractor, comprising a sampling tube, a tube plug and a connection tube. One end of the sampling tube is closed, and the other end of the sampling tube is provided with an opening; the tube plug is hermetically arranged at the opening end of the sampling tube; the upper surface of the tube plug is provided with a receiving port; one end of the connection tube is provided with a tube plug puncture needle; the other end of the connection tube is provided with a lumbar puncture needle connector; a lumbar puncture needle is passed through the receiving port into the tube plug and connected with the inside of the sampling tube; the lumbar puncture needle connector is connected with the tail of the lumbar puncture needle; a tube cap sleeves the opening end of the sampling tube and seals the sampling tube; the upper half of the sampling tube is provided with a fixing ring; the tube capis connected with the fixing ring through a fixing strap. The cerebrospinal fluid extractor has the advantages of simple structure, low production cost, and less danger of samples being contaminated.

The invention discloses a lumbar puncture needle used for injecting anesthetics and an application method of the lumbar puncture needle. The lumbar puncture needle comprises an outer needle, an innerneedle structure and a second infusion tube and is characterized in that a first connector is connected to the rear end of the outer needle, the inner needle structure is provided with an inner needle, the inner needle can extend into the outer needle, the rear end of the inner needle is provided with a second connector, and the second connector can extend into a needle handle. The lumbar punctureneedle has the advantages that the lumbar puncture needle which is mainly provided with the outer needle, the inner needle structure and the second infusion tube is simple and reasonable in structureand convenient for medical application, the outer needle has certain firmness and cannot be easily broken during use, the body of the outer needle is provided with scale marks, the depth of the outerneedling puncturing into the waist of a patient can be displayed through the scale marks, the practical value of the needle is increased, and the surgery process can be facilitated; the inner needlestructure can extend into the outer needle structure to achieve easy and convenient injection, the pain of the patient can be relieved favorably, the iatrogenic infection chance of the patient can bereduced favorably, lumbar puncture time can be shortened, and lumbar puncture operation efficiency can be increased.

The invention belongs to the technical field of medical instruments, in particular to a lumbar puncture needle screw positioning device. The lumbar puncture needle screw positioning device comprises ahousing and a fixing cylinder which are fixedly connected, a first chamber is opened in the housing, an electric push rod is slidably connected to the inside of the housing close to the top, a push plate is fixedly mounted on an end of the electric push rod near the inner portion of the housing, and a blocking plate is fixedly disposed on one side of the inner portion of the housing near the pushplate, and a connecting seat is fixedly disposed on an outer side wall of the housing; a rebound seat is arranged at inner portion of the fixed cylinder the near the top, after the user fixes the needle to a fixed disc, the electric push rod drives the push plate to move toward the fixed cylinder, and drives the connecting rod to slide to push the needle out of the fixed disc. Through the elasticforce of several springs inside the rebound seat, the connecting rod can return to an original position autonomously, the original manual adjustment of the connecting rod is changed, a needle insertion step can be simplified, and the effect of the needle wearing by the user is improved.

The invention relates to a sleeve type lumbar puncture needle and a use method thereof. The technical scheme of the invention is that the sleeve type lumbar puncture needle comprises a cylindrical needle head with an inner cavity, a handle with a communicating pipe cavity, and a trocar, wherein the needle head is provided with a first liquid outlet hole and a second liquid outlet hole; the trocar has a cylindrical structure matched with the inner cavity of the needle head and a through hole cavity; and the trocar is provided with a first liquid inlet hole, a second liquid inlet hole and a third liquid inlet hole. The sleeve type lumbar puncture needle provided by the invention has the technical effects that: a transparent observation window or a transparent handle is arranged to observe whether cerebrospinal fluid flows out or not intuitively and visually, the flow is controlled precisely when liquid is taken, the operation is convenient, and the setting and matching of the mutual positions between the first liquid outlet hole and the second liquid outlet hole, and the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole enable the liquid outgoing manner and the liquid outgoing volume can be flexibly adjusted according to requirements of on-scene patients or operators. The sleeve type lumbar puncture needle is convenient to use, is safe and reliable, and is long in service life, accurate in adjustment, and complete in function.

The invention provides a suction-type lumbar puncture needle. The suction-type lumbar puncture needle comprises a needle core, a positioning body, a needle main body, a lining core seat and a lengthened wing. The suction-type lumbar puncture needle is characterized in that the needle main body is provided with a three-way valve which is externally connected with a color developing liquid container; and a substrate color developing liquid A, a substrate color developing liquid B and a color developing liquid C are arranged in the color developing liquid container, wherein the substrate color developing liquid A comprises an analyzer, an anticoagulant and a surfactant A, the substrate color developing liquid B comprises a buffering agent, a complexing agent and a surfactant B, and the colordeveloping liquid C comprises 3,3',5,5'-tetramethyl benzidine and dimethyl sulfoxide. The needle main body, the three-way valve and a rubber piston are combined to form a closed space, so that external air and bacteria are prevented from entering into the closed space, and stability of detection is improved. Three main components are separated, and the corresponding anticoagulant, complexing agent, surfactant and the like are added, so that the prepared reagents have stable components and can be placed for a long time. When the suction-type lumbar puncture needle is used, the three color developing liquids are sequentially added through the three-way valve, so that accuracy and sensitivity of detection are improved.

The invention discloses a lumbar puncture needle assembly and a cerebrospinal fluid quantitative collection system. The lumbar puncture needle assembly comprises a needle sleeve 1, a needle core 2 anda sealed sampling needle tube 3, wherein the needle sleeve 1 is a hollow tubular sleeve, the needle core 2 is a solid needle with the tail end provided with a needle core handle, and the sealed sampling needle tube 3 can be placed in the needle sleeve 1; the needle tube 3 comprises an inner needle tube 7 and a collection tube 5, and a sealing membrane 4 is arranged at the front-end needle openingof the inner needle tube 7. When the lumbar puncture needle assembly is in use, an assembly of the needle sleeve 1 and the needle core 2 is inserted into the lumbar vertebra, then the needle core 2 is pulled out, the needle tube 3 is placed in the needle sleeve 1, and after the sealing membrane 4 is melted, a solution is collected by the collection tube 5. By adopting the cerebrospinal fluid quantitative collection system, microorganisms, free DNA aerosols and the like in the environment can be prevented from entering the collection system during clinical operation, and it is guranateed thata detection source is real and effective.

The invention belongs to the field of medical appliances, and in particular relates to a lumbar puncture needle capable of detecting oxygen partial pressure and biochemical indexes of cerebrospinal fluid. The lumbar puncture needle comprises a needle head 1, a needle tube 2, a pushing component 3 and a guide wire 4, wherein the needle head 1 has a hollow cavity, scales 101 are arranged on the needle head 1, the pushing component 3 comprises a push rod 301 and a piston 302, the piston 302 is arranged in the needle tube 2, the needle head 1 is connected with the front end of the needle tube 2, and a movable cap 202 is arranged at the front end of the needle tube 2. The lumbar puncture needle disclosed by the invention can collect the cerebrospinal fluid under the condition that air is isolated, the operation is simple and convenient, the use is safe, the purpose of accurately measuring the oxygen partial pressure and biochemical indexes can be achieved, and meanwhile, the medicine injecting function is also available.