86 results about "Indwelling catheters" patented technology

A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and / or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.

An instrument delivery device for advancing an instrument into a vascular access device indwelling catheter includes an introducer housing comprising a housing coupler at a distal end thereof and an actuator movably coupled to the introducer housing to move the instrument between a first position where the instrument is disposed within the housing and a second position where a distal end portion of the instrument is disposed distally beyond the introducer housing. A lock of the delivery device secures the introducer housing to the vascular access device, with the lock including a lock coupler that mates with the housing coupler, with the lock coupler positioned about the housing coupler such that the housing coupler is positioned within the lock coupler. The lock also includes a blunt cannula and a pair of arms configured to engage the vascular access device and a fluid seal positioned within a lumen of the lock.

The invention discloses a double-elbow type seminal vesicle supporting indwelling catheter which comprises a base body straight pipe, a head bent pipe, a tail bent pipe and a wire, the head bent pipe is arranged at one end of the base body straight pipe and used for being automatically bent in a seminal vesicle during indwelling, and the tail bent pipe is arranged at the other end of the base body straight pipe. The tail bent pipe is arranged at the other end of the base straight pipe and used for being automatically bent in a prostate small bag in the indwelling period, a through wire penetrating channel is formed among the base straight pipe, the head bent pipe and the tail bent pipe, and the wire can extend out of the body along the urethra from the tail bent pipe in the indwelling period to be pulled. Through the collaborative design of double-end stable fixing and line body pulling simplification, the core problems that an existing seminal vesicle supporting device is unstable in supporting and difficult to pull out are thoroughly solved, a safer and more efficient medical instrument solution is provided for postoperative rehabilitation of a seminal vesicle endoscope operation, and the medical seminal vesicle supporting device has extremely high clinical popularization value.

The invention relates to the technical field of medical apparatus and instruments, in particular to a thoracic catheter rapid fixing device based on rapid clamping, comprising: a medical single-sided patch, on which a yoke plate is detachably mounted; the two sets of first arc-shaped pieces are installed on the yoke plate in a sliding mode, two sets of second arc-shaped pieces are symmetrically and rotationally installed on the first arc-shaped pieces, and the ends, away from the first arc-shaped pieces, of the second arc-shaped pieces are connected through elastic rubber pieces; the traction plate is installed on the yoke plate in a sliding mode, an energy storage part is arranged on the traction plate, and the energy storage part is matched with an elastic assembly arranged on the yoke plate, so that the elastic assembly has an energy storage state and an energy release state; and the pushing structure is connected with the traction plate and the first arc-shaped pieces, the pushing structure can drive the two first arc-shaped pieces to move close to each other when the elastic assembly is in the energy release state, and the portability of the thoracic cavity indwelling catheter during disassembly is improved.

A system for whole blood sampling and separation includes a blood draw device coupled to a catheter assembly, with the blood draw device including a catheter tube, a housing that movably receives the catheter tube, and an advancement member to move the catheter tube between first and second positions, to enable a distal end of the catheter tube to be disposed within or past a distal tip of an indwelling catheter. A blood separation device is attached to the blood draw device to directly receive a blood sample therefrom and comprises a centrifuge-free mechanism configured to separate a plasma or serum sample from the blood sample. A sample collection container is coupled with the separation device and provides a vacuum pressure that draws the blood sample into the separation device, with the separated plasma or serum sample being drawn into the sample collection container.

Hand held and portable disinfection units for use with patients having indwelling catheters or are hospitalized or under care in an intensive care unit.

The utility model provides an infusion connector which is generally used in cooperation with an indwelling catheter such as an indwelling needle in a blood vessel, and liquid medicine can be infused into the blood vessel and blood or liquid can be extracted through the infusion connector. The infusion connector comprises a separation film, a fastener and a connector base. The separation film comprises a body; a cover cap is arranged at one end of the body, the body is provided with a channel capable of being opened and closed, and an inlet of the channel is formed in the cover cap; an axially-through cavity is formed in the connector base, the separation film is contained in the cavity, and a cap of the separation film is buckled to a first connector at one end of the connector base. The cap is provided with a flange extending into the cavity, and the flange is tightly connected with the connector base through the fastener. According to the infusion connector, the separation membrane is tightly connected to the connector base through the fastener, and therefore the problem that the separation membrane fails and cannot be sealed due to the fact that the separation membrane is brought into the infusion connector in the operation process can be solved.

The utility model relates to the technical field of medical instruments, and particularly discloses a continuous invasive oxyhemoglobin saturation monitoring device and an oxyhemoglobin saturation monitoring system, which comprise a puncture needle, an indwelling cannula component and an oxyhemoglobin saturation detection optical fiber, the indwelling cannula assembly comprises a catheter seat, an indwelling catheter, a leading-in pipe and a liquid inlet pipe; a guide channel is arranged in the catheter seat; the indwelling catheter and the ingress pipe are both communicated with the catheter seat, and the tip of the puncture needle sequentially penetrates through the guide channel and the indwelling catheter; the detection end of the oxyhemoglobin saturation detection optical fiber penetrates through the ingress pipe and is inserted into the indwelling catheter; the guide channel is connected with a first sealing part, and the first sealing part is used for sealing the guide channel; the lead-in pipe is connected with a second sealing part, and the second sealing part is used for sealing the lead-in pipe; the continuous invasive oxyhemoglobin saturation monitoring device can continuously monitor the oxyhemoglobin saturation, provides continuous dynamic data for clinical diagnosis and treatment conveniently, quickly and accurately, and indirectly reduces the economic burden and physiological pain of a patient.

The present invention relates to a composition for inhibiting crystallization and / or biofilm formation on an indwelling catheter. Likewise, the present invention relates to the use of a composition as provided herein for the preparation of a medicament for inhibiting crystallization and / or biofilm formation on an indwelling catheter. The composition applied according to the invention contains trimagnesium citrate and tripotassium citrate, and the application of the composition reduces the risk of catheter blockage, reduces the risk of catheter-related urinary tract infection, reduces the risk of bladder calculus formation, reduces the risk of urethral mucosa injury caused by replacement of the indwelling catheter, and reduces the risk of urinary tract mucosa damage caused by replacement of the indwelling catheter. And allows the catheter to be used over an extended period of time.

The present invention provides a pharmacological wearable cardioverter defibrillation system for conducting cough assisted pharmacological cardioverter defibrillation during onset of a sudden arrhythmia. The system comprises a WCD defibrillator worn by the patient, a drug mix contained either in a reservoir / pump or in an inhaler, and a miniature monitor. The drug mix in the reservoir / pump is equipped with a pump for pumping the drug mix via an indwelling catheter to the coronary sinus while the drug mix in the inhaler is inhaled directly to the lungs. When a sudden arrhythmia is detected by a sensing electrode of WCD, the following steps are carried out: prompting the patient to take the drug mix, prompting the patient to start forceful coughing, and delivering electric shock(s) under either one of the two circumstances that the patient is unable to start coughing or the arrhythmia is not terminated.

The utility model relates to a peripheral vein indwelling needle which comprises a puncture needle assembly and an indwelling needle seat, the indwelling needle seat is of a tubular structure with two open ends, a sealing plug is installed in one end of the indwelling needle seat, the other end of the indwelling needle seat is fixedly communicated with an indwelling catheter, and the puncture needle assembly comprises a puncture needle seat. The puncture needle seat is located outside the end, away from the indwelling catheter, of the indwelling needle seat and is of a transparent tubular structure, one end of the puncture needle seat is open and provided with a detachable sealing cap, the other end of the puncture needle seat is closed, and a blood return cavity is formed between the other end of the puncture needle seat and the sealing cap. The closed end of the puncture needle base is fixedly connected with a puncture needle communicated with the interior of the blood return cavity, one end of the puncture needle is a tip end, the tip end of the puncture needle sequentially penetrates through the sealing plug and the indwelling catheter and then is located outside the indwelling catheter, and the puncture needle is in sliding connection with the sealing plug and the indwelling catheter. According to the indwelling needle, the time for medical staff to judge whether the indwelling needle is punctured into the venous blood tube of a patient or not can be shortened, so that the working efficiency of the medical staff is improved.

The present application belongs to the field of medical material surface functionalization, and particularly relates to a kind of nano drug-loaded hydrogel catheter coating and its preparation method and application.The present application utilizes PLGA to load antibiotic amikacin sulfate AMK or antibacterial peptide FK13-a1, synthesizes nanoparticle NP-AM and nanoparticle NP-FK, prepares NP-AM / FK@OMV nanoparticle complex with EcN OMV as carrier, then adds poloxamer-hyaluronic acid composite hydrogel to obtain NP-AM / FK@OMV-P / H nano drug-loaded hydrogel, and forms coating after coating and drying.The nano drug-loaded hydrogel coating provided by the present application has the characteristics of enzyme response, antibacterial, prevention of biofilm formation and low toxicity, has great application potential in inhibiting medical catheter surface biofilm, and has important significance for preventing and treating CAUTI, prolonging the use time of indwelling catheter, and reducing the discomfort of patients caused by frequent replacement of catheter.

The invention provides a risk assessment prevention and control system for an indwelling pipeline. The risk assessment prevention and control system comprises an information acquisition terminal, a risk assessment terminal, a nursing plan terminal, a registration terminal and a control terminal, the information acquisition terminal is used for acquiring patient information and nurse information in a ward; the risk assessment terminal is used for performing risk assessment on the indwelling catheter according to the patient information and the nurse information to generate risk assessment information; the nursing plan terminal is used for generating corresponding nursing plan information according to the risk assessment information; the registration terminal is used for a nurse to perform nursing registration according to the corresponding nursing plan information to generate registration information; the control terminal is used for generating permission information according to the registration information, and the permission information is used for being transmitted to a medicine opening system in the ward so as to unlock the medicine opening system. The indwelling catheter has the effect of reducing the infection risk of the indwelling catheter of the patient.

The utility model provides a blood sampling device based on a central venous indwelling catheter. According to the blood sampling device, when the blood sampling device leaves a factory, the first end of the three-way connector and the first nipple in the needle cylinder of the first injector form an integrally-formed sealed whole body and cannot be detached; in the process of extracting the mixture by using the first injector before the central venous blood of the patient is extracted by using the second injector, and in the process of injecting the mixture in the first injector into the central vein of the patient through the central vein indwelling catheter after the central venous blood of the patient is extracted by using the second injector; the first injector is not pulled out from the first port, a first nipple of a needle cylinder in the first injector is always isolated from the outside and not exposed to the outside, and the first end of the three-way connector is always isolated from the outside and not exposed to the outside, so that external pollutants can be prevented from being injected into the central vein of a patient, and the patient can be prevented from being polluted. And health and safety threats to patients can be avoided.

The invention belongs to the technical field of medical teaching information, and particularly relates to an umbilical cord model umbilical vein indwelling catheter module improvement system and method based on a novel biomimetic material. The system focuses on clinical training requirements of umbilical vein catheterization in newborn intensive care, and overcomes core defects of a traditional training model in material bionic degree, operation feedback precision and durability by innovating a bionic material formula, optimizing a catheterization channel structure and designing a multi-dimensional sensing feedback and evaluation algorithm. A practical operation training solution with real operation hand feeling, accurate quantitative evaluation and high reusability is provided for medical teaching, and the system is suitable for skill training in scenes such as medical colleges and hospital neonatology departments.

The application discloses a double-bend type seminal vesicle support indwelling catheter, which comprises a base straight pipe, a head curved pipe, a tail curved pipe and a guide wire, the head curved pipe is arranged at one end of the base straight pipe and is used for automatically bending in the seminal vesicle during indwelling, the tail curved pipe is arranged at the other end of the base straight pipe and is used for automatically bending in the prostate small vesicle during indwelling, a through wire channel is arranged between the base straight pipe, the head curved pipe and the tail curved pipe, the guide wire can extend from the tail curved pipe to the outside of the body along the urethra during indwelling, and the guide wire is used for traction, the double-end stable fixation and the simplified cooperative design of the wire body pulling-out can solve the core problems of the instability of the existing seminal vesicle support equipment and the difficulty of pulling-out, a safer and more efficient medical instrument solution is provided for postoperative rehabilitation of the seminal vesiculoscope surgery, and the application has a high clinical popularization value.

The utility model provides a multipurpose blood sampling assembly which comprises an injector, a three-way valve, an inspection test tube inserting piece, a puncture blood sampling piece and an indwelling catheter blood sampling piece, a first connecting end of the three-way valve is detachably connected with a nipple of the injector, and a second connecting end of the three-way valve is detachably connected with the indwelling catheter blood sampling piece. The indwelling catheter blood sampling piece is detachably connected with the puncture blood sampling piece, the third connecting end of the three-way valve is detachably connected with the inspection test tube insertion piece, and the inspection test tube insertion piece is detachably connected with an external inspection test tube. According to the multipurpose blood sampling assembly, blood sampling through the indwelling catheter end can be achieved while blood sampling through a skin puncture blood vessel is achieved, communication between every two channels of the three-way valve is achieved by adjusting the three-way valve, and then corresponding front section blood collection and test blood collection and storage are achieved; the catheter is prevented from being repeatedly disassembled and connected in the blood sampling process, and the blood sampling convenience and safety are improved.

A dialysis system with motor driven pressure estimation of fluid within a patient line is disclosed. A peritoneal dialysis ("PD") system includes a fluid pump and a patient line fluidly coupling the fluid pump to an indwelling catheter leading into a peritoneal cavity of a patient. The PD system also includes a motor driver that controls a motor of the fluid pump and transmits an output signal indicative of a load on the motor. The PD system also includes a machine learning algorithm that correlates data related to the output signal from the motor drive with a known fluid pressure within the patient line. A processor of the PD system transmits an input signal to activate the motor driver, receives an output signal from the motor driver, and estimates fluid pressure within the patient line by applying data from the received output signal to a machine learning algorithm.

An indwelling pleural catheter system comprises an indwelling catheter device (2) comprising a catheter tube (7) with a fenestrated distal end (7A) configured to reside in the pleural cavity of a subject and a connection hub (10) fluidically coupled to a proximal end (7B) of the catheter tube, a skin anchoring member (3) to anchor the connection hub (10) to the skin of the subject, and optionally a detachable ambulatory suction module (4) configured for detachable attachment to the connection hub (10). The suction module (4) comprises a fluid inlet (19) configured for fluidic coupling to the catheter tube (7) through the connection hub (10) and a fluid outlet (20) configured for detachable fluidic coupling to a pleural fluid drainage system (5) to drain pleural fluid through the detachable ambulatory suction module. The detachable ambulatory suction module is configured to exert a negative pressure in the catheter tube upon detachment of the pleural fluid drainage system from the suction module. Treatment of pleural effusion using the system of the invention is described. An indwelling catheter system for draining fluid from the peritoneal cavity, and methods of treating ascites, is also described.

An indwelling catheter configured to be indwelled in a living body lumen includes: a shaft including a lumen. An outer diameter of the shaft is 2.5 mm or less. An initial elasticity of the indwelling catheter in warm water at 37° C. is 0.012 N / mm to 0.13 N / mm. A shape restoring rate of the indwelling catheter in warm water at 37° C. is 73% or more. A sliding resistance of the indwelling catheter in physiological saline at 23° C. is 0.025 N or less.

The utility model provides a waterproof protective film for a venous indwelling catheter, which comprises a waterproof protective film, a waterproof bonding piece, a dustproof piece and a tearing piece, the size of the waterproof protective film is larger than the overall size of a fixed application and the catheter, and both sides of the waterproof protective film are not sticky; the waterproof bonding piece is arranged on the face, close to the skin of the patient, of the waterproof protection film and arranged on the peripheral side edge of the waterproof protection film in a surrounding mode. The dustproof part is arranged on the face, away from the waterproof protective film, of the waterproof bonding part, covers the waterproof bonding part and is detachably connected with the waterproof bonding part; the tearing part is arranged on the face, away from the waterproof bonding part, of the waterproof protective film, the tearing part is arranged at one end, in the length direction, of the waterproof protective film, one end of the tearing part is fixed to the waterproof protective film, and the other end of the tearing part is separated from the waterproof protective film. According to the technical scheme, the risks that the fixing application is stained with water, and the catheter falls off and even is infected can be reduced, and the comfort and compliance of a catheter indwelling patient are improved.

This invention discloses a multi-compartment disinfection and docking device for hemodialysis catheters, comprising a capsule; the capsule is provided with several connecting tubes for docking with a dialysis machine; the capsule contains a first disinfection compartment for disinfecting old heparin caps, a removal compartment for removing old heparin caps, a second disinfection compartment for disinfecting the indwelling catheter interface, and a docking compartment for docking with the connecting tubes; both the first and second disinfection compartments are equipped with sterilizers for disinfection. This invention integrates the nursing work during dialysis treatment from the original multi-step, scattered actions into a continuous operation within the capsule. Simply insert the indwelling catheter into the capsule and proceed sequentially through the first disinfection compartment, removal compartment, second disinfection compartment, and docking compartment. Disinfection, cap removal, re-disinfection, and docking can be completed within the capsule by rubbing it; this simplifies the operation, avoids bacterial infection and contact contamination, and ensures the convenience and safety of hemodialysis nursing work.

The utility model belongs to the technical field of medical instruments, and particularly relates to a urinary catheter nursing towel, which is characterized in that a rubber sealing block is mounted at the top end of a nursing protective pad, a blocking strip is fixedly connected to the top end of the nursing protective pad, an adhesive tape is mounted at the top end of the nursing protective pad, and a liquid absorbing pad is fixedly connected to the inside of the nursing protective pad. The bottom end of the nursing protection pad is fixedly connected with an external water blocking cover, and a transparent window is arranged in the external water blocking cover. Through cooperation of the nursing protection pad, the liquid absorption pad and other components, when a male patient with an indwelling catheter is clinically nursed and treated, the nursing protection pad can be used when the urine flows along the catheter due to urethral orifice secretion increase caused by an operation or bladder spasm caused by the indwelling catheter of the patient. By means of the structure, secretions or urine can be blocked, collected to a proper position and absorbed, so that the secretions or urine are prevented from polluting hospital gown and the like, and risks of cross infection and the like are prevented.

A stabilization device for an indwelling catheter can include a platform, a pair of catheter fasteners on the platform, and a pair of stabilizing wings extending from the platform. The platform can include a skin-facing side and a catheter-fixing side of the platform. The pair of catheter fasteners can be located on the catheter-fixing side of the platform. The catheter fasteners can be configured to secure the hub of an indwelling catheter having an extension port. The pair of stabilizing wings can extend from a transverse axis of the platform. The stabilizing wings can be configured to mitigate rotation of the indwelling catheter about its longitudinal axis when the indwelling catheter is secured by the catheter fasteners on the platform and the stabilization device is adhered to the patient. A method for stabilizing an indwelling catheter can include securing the indwelling catheter and adhering the stabilization device to the patient's skin.

A stylet (200) may be used to perform measurements via an indwelling catheter (100). The stylet (200) can be configured in various ways to selectively occlude the indwelling catheter (100). Because of this selective occlusion, the indwelling catheter (100) can be used for blood draws, infusions, and other functions even while the stylet (200) remains extended through the indwelling catheter (100).

The utility model provides a disposable indwelling catheter perineum flushing bag which comprises a cotton swab bag, a cleaning fluid area and a plurality of tweezers bags, cotton swabs in the cotton swab bag can be used for effectively cleaning the large-area area of the perineum, the cotton swabs can be moistened at any time in the cleaning process due to the arrangement of the cleaning fluid area, and the cleaning effect is improved; a plurality of tweezers bags are further arranged, one scrubbing tweezers is arranged in each tweezers bag, the scrubbing tweezers are independently subpackaged, a user can detach the scrubbing tweezers according to needs, the unused scrubbing tweezers are prevented from being polluted, the scrubbing tweezers can wrap the ureter at 360 degrees, it is guaranteed that the periphery of the ureter is comprehensively cleaned, and the scrubbing tweezers are convenient to use. Compared with a traditional cotton swab which is difficult to cover the whole surface of the ureter, the design can rapidly remove blood stains, secretions and other stains on the surface of the ureter to a great extent, and the infection risk is effectively reduced.

The invention belongs to the technical field of medical instruments, and particularly relates to a closed type indwelling catheter blood sampling device. According to the closed type indwelling catheter blood sampling device, the communication state of the three-way pipeline can be adjusted by rotating the switching valve, diluted blood is pumped out through the injection assembly, then the injection assembly is kept still, the communication state of the three-way pipeline is switched, and a blood sampling test tube for collecting blood needing to be inspected is inserted into the needle cover through the insertion opening in the needle cover; the head of the hollow needle head can be inserted into the blood collection test tube, blood needing to be inspected directly enters the blood collection test tube, and the blood collection test tube is taken down from the hollow needle head until the blood needing to be inspected is completely sucked; the communicating state of the three-way pipeline is switched again, the diluted blood in the injection assembly is injected back into the indwelling catheter, blood drawing work in the indwelling catheter is completed, the indwelling catheter does not need to be repeatedly connected and disconnected through a plurality of injectors in the whole process, the blood drawing step is simplified, and the risk of catheter related blood flow infection is reduced.

The utility model provides an indwelling catheter management module and an indwelling catheter management system, the indwelling catheter management module comprises a Bluetooth transceiver module, a catheter opening and closing module, a measurement module and a display module; the Bluetooth receiving and transmitting module is electrically connected with the urinary catheter opening and closing module; the urinary catheter opening and closing module is electrically connected with the measuring module and the display module respectively; the ureter opening and closing module is used for being detachably connected with a ureter of an in-vitro part of an indwelling ureter of a target patient and used for controlling the indwelling ureter to be clamped and opened; the measuring module bears the urine bag connected with the indwelling catheter through the bearing area of the measuring module and weighs the urine bag, so that urine volume data of a target patient can be sent in real time through the Bluetooth receiving and transmitting module, and the timeliness and convenience of urine volume monitoring of the patient needing the indwelling catheter for a long time are improved.

A system is disclosed for collecting urine from a human male. An assembly includes absorbent material enclosed in a gusseted pouch made of polymer material. The body facing region of the Pouch is fitted with an elastomeric O ring allowing the insertion of the penis into the pouch. Once the penis is inserted into the ring, it will not retract or dislodge. The patient can urinate into the pouch while the absorbent material soaks up the discharge. The top of the pouch is fitted with a zipper that allows the changing of the pads for reuse of apparatus. The pads may be impregnated with a mild body safe deodorant or antiseptic. The Anterior face of the pouch may be fitted with a portal to accommodate a indwelling catheter and intercept the leaking urine. The pouch may have a weight to milliliter discharge conversion table, and / or a urine diagnostic strip.

The invention relates to an indwelling catheter blockage early warning method and system based on pressure waveform analysis, and relates to the technical field of monitoring early warning, and the method comprises the following steps: collecting a multi-source monitoring data set comprising original pressure waveform data, instantaneous flow velocity data and electrocardio synchronous signal data; performing four-layer multi-scale decomposition processing based on a Daubechies wavelet basis function on the original pressure waveform data to generate a multi-scale waveform component set; constructing a catheter downstream vascular bed fluid mechanical impedance model by combining the basic information of the patient, and deducing and generating a catheter downstream vascular bed impedance change index; dynamic baseline drift modeling is carried out through a sliding time window, and a self-adaptive catheter blockage risk reference threshold value is set; constructing a patient specific risk factor graph structure, performing time sequence prediction analysis on the feature sequence through a recurrent neural network, and generating a future risk evolution trend index; and a third-level early warning signal is generated. The method has the beneficial effect that the sensitivity and the specificity of early warning of catheter blockage are remarkably improved.