541results about "Suction drainage systems" patented technology

Disclosed is a negative pressure suction sheath, comprising a sheath tube (1), a negative pressure connector (2), and a dilator (3). The negative pressure connector (2) comprises a main channel cavity (201) and a negative pressure suction channel cavity (202) located on one side of the main channel cavity (201). A proximal end of the sheath tube (1) is connected to a distal end of the main channel cavity (201). The dilator (3) is inserted from a proximal end of the main channel cavity (201) and extends out of a distal end of the sheath tube (1) and is detachably connected to the main channel cavity (201). A side channel port (205) is formed on one side of the main channel cavity (201), and the negative pressure suction channel cavity (202) is in communication with the side channel port (205). A cavity wall of the main channel cavity (201) is further provided with a pressure regulating port (203). The pressure regulating port (203) is arranged corresponding to the side channel port (205) or is located at one end of the side channel port (205) distal to the sheath tube (1), and the magnitude of the negative pressure in the sheath tube (1) can be adjusted by adjusting the opening size of the pressure regulating port (203).

The invention discloses a thoracic surgery postoperative drainage monitoring data processing method and a thoracic surgery postoperative drainage monitoring data processing system. The method comprises the following steps: synchronously acquiring thoracic respiration dynamic characteristics of a patient and fluid dynamic characteristics of a thoracic closed drainage system through a data acquisition module; the central processing server establishes a time sequence mapping relationship between the two, performs feature fusion analysis, and calculates to obtain a thoracic cavity-pipeline coupling efficiency index; performing logic judgment on the postoperative recovery state of the patient on the basis of the index, and identifying a chest-pipeline fluid transmission state including breathing work limitation, drainage channel blockage and pleural cavity air leakage; and dynamically generating a grading equipment response strategy including adjusting training intensity and triggering pipeline maintenance early warning or analgesia intervention according to an identification result. According to the method, accurate recognition and closed-loop management of postoperative complications are achieved by quantitatively evaluating the linkage relation between respiration driving and drainage response.

The invention discloses a closed thoracic drainage bottle facilitating drainage, and belongs to the field of medical instruments. The device comprises a water seal bottle, a negative pressure adjusting bottle, a water seal pipe and a chest drainage pipe, and is additionally provided with an adjusting assembly and a liquid collecting assembly. The liquid collecting assembly comprises a first liquid collecting bottle and a second liquid collecting bottle which are symmetrical; the adjusting assembly comprises a fixing plate and four sets of two-way valves, the fixing plate is provided with symmetrical connectors which are connected with the liquid collecting bottle and the chest drainage tube respectively, and the two forked ends of the water sealing tube penetrate through the corresponding two-way valve connectors and stretch into the liquid collecting bottle. Seamless switching of the double liquid collection bottles can be achieved by controlling opening and closing of different two-way valves, and drainage does not need to be interrupted when the liquid collection bottles are replaced. The device is easy and convenient to operate, the drainage efficiency is improved, and drainage continuity and safety are guaranteed.

The present invention relates generally to improved systems and methods for removing undesirable material residing in vessels. More specifically, the present invention relates to systems and methods for using at least one cannula to remove substantially en bloc, from a site of obstruction or interest, undesirable material without fragmentation and without excessive fluid loss.

The invention discloses a peritoneal drainage flushing device based on multi-dimensional parameter monitoring and a negative pressure regulation and control system, and belongs to the technical field of peritoneal drainage. The peritoneal drainage flushing device and negative pressure regulation and control system based on multi-dimensional parameter monitoring comprises a device support, a multi-channel rotary valve and two negative pressure pumps, a flow guide pipe and a backflow pipe are arranged between the two negative pressure pumps and the multi-channel rotary valve, and pipeline detection modules are installed on the flow guide pipe and the backflow pipe. The peritoneal drainage device solves the problems that an existing peritoneal drainage device is not ideal in treatment effect and affects the treatment effect when a drainage tube is blocked, early intervention is carried out by adjusting a negative pressure pump, a multi-channel rotary valve and a three-way electromagnetic valve, targeted treatment is automatically triggered at the early stage of complications through continuous and multi-dimensional monitoring, and the treatment effect is effectively improved. The tube blocking rate, the abdominal infection rate and the abdominal hypertension syndrome occurrence rate are remarkably reduced, the pain of a patient is relieved, the recovery time is shortened, and personalized and self-adaptive adjustment is carried out according to the physical state of the patient.

The invention disclosed in this document presents a novel direct in-scope suction system designed for the retrieval of calculus fragments within the body. This system comprises two key components: a calculus fragments retrieval device and a pump unit. The calculus fragments retrieval device features a body with a single working channel that includes both an irrigation port and a suction port, which are connected to respective irrigation and suction pumps via elastomer-based rubber tubes. This setup allows for the controlled infusion of saline solution into the body lumens during lithotripsy procedures, ensuring clear visibility and fragment clearance. The retrieval device includes a trigger lever connected to a pincher tab. When the operator presses the trigger lever, the suction port is opened by releasing the pinched suction tube, increasing pressure inside the body.

Medical devices and systems are described. The medical device may include a handle that includes a hub, a grip portion, and an arm. The hub may define a lumen having a proximal opening. The arm may extend proximally from the hub and may be coupled to a member slidable or rotatable relative to the arm. The grip portion may extend transverse to the lumen of the hub. The grip portion may be configured to receive a palm of a user's hand while a thumb of the user's hand controls sliding or rotation of the member.

The present invention relates generally to improved systems and methods for removing undesirable material residing in vessels. More specifically, the present invention relates to systems and methods for using at least one cannula to remove substantially en bloc, from a site of obstruction or interest, undesirable material without fragmentation and without excessive fluid loss.

The invention discloses a high-frequency full-chest oscillation sputum excretion method and system based on clinical data self-adaptive regulation and control, and the method comprises the steps: building an individualized propagation model of thorax and lung tissues through collecting individualized clinical data of a patient and chest multipoint acoustic and mechanical short-range response; the current body position of a patient is input into the model, a chest drainage path is obtained, oscillation control parameters are generated under the constraint of the path, and the oscillation control parameters are used for driving equipment to synthesize pressure traveling waves which are directionally propagated in multiple areas of the chest wall. In the execution process, safety gating control is conducted in combination with electrocardio and breathing phases, meanwhile, aerosol echoes and high-frequency impedance disturbance are collected to serve as feedback signals, and feedback data are formed after the feedback signals are aligned with an execution time sequence and used for dynamically updating the individualized propagation model and oscillation control parameters. According to the invention, accurate regulation and control can be carried out according to individual differences and real-time physiological statuses of different patients, the sputum drainage effect is effectively enhanced, the safety and comfort of treatment are improved, and the clinical application value is high.

Disclosed herein are devices, systems, and methods for at least partially automatically aspirating clot material and blood from the vasculature of a patient, filtering the blood from the clot material, and returning the blood to the vasculature of the patient. In some embodiments, a system in accordance with the present technology can include (i) an aspiration catheter configured to be positioned within the vasculature of a patient proximate to clot material therein, (ii) an aspiration assembly selectively fluidly couplable to the aspiration catheter, (iii) a filter assembly selectively fluidly couplable to the aspiration assembly, (iv) a reinfusion and flushing assembly selectively fluidly couplable to the filter assembly, (v) a reinfusion catheter selectively fluidly couplable to the reinfusion and flushing assembly and configured to be positioned within the vasculature, and (vi) a control system communicatively coupled to the aspiration assembly, the filter assembly, and / or the reinfusion and flushing assembly.

The invention discloses snake and insect bite venom diffusion prevention emergency equipment based on a field operation environment, and belongs to the technical field of outdoor rescue equipment.The snake and insect bite venom diffusion prevention emergency equipment comprises a binding belt assembly, a mounting base and a blood sampling assembly.The binding belt assembly comprises a binding belt and air bags arranged on the two sides of the lower surface of the binding belt; the mounting base is arranged in the middle of the bandage and located between the two sets of air bags, the blood sampling assembly is detachably mounted in the mounting base, movable pressure adjusting mechanisms are arranged on the two sides of the mounting base, and the blood sampling assembly is provided with an arc-shaped blood sampling pipeline; through the synergistic effect of the pressure adjusting mechanism and the driving mechanism, dynamic adjustment of the pressure of the air bag is achieved, and tissue damage caused by continuous high pressure is avoided. The pressure cannot be adjusted in real time in a traditional bundling mode, however, according to the device, a motor drives a protruding block to be linked with a push plate, periodic change of the pressure is achieved, venom diffusion is effectively controlled, and smooth local blood circulation is guaranteed.

The invention discloses a neurosurgery interventional therapy implantation dosing device, and belongs to the field of medical instruments, the neurosurgery interventional therapy implantation dosing device comprises an injection seat, the injection seat is provided with a first storage cavity for storing liquid medicine, the injection seat is provided with a catheter communicated with the first storage cavity, and the injection seat is fixedly provided with a first silica gel pad; the injection seat is provided with a flow guide assembly, the flow guide assembly is used for collecting tissue fluid generated by body rejection, the injection mechanism is fixed on an arm of a patient through a binding assembly, the injection mechanism is matched with the driving mechanism to add a medicament into the injection seat, and a flow guide groove in the outer wall of the injection seat guides the peripheral tissue fluid to flow. The supporting net facilitates the tissue fluid to enter the second storage cavity along the flow guide grooves, the arc-shaped plates in the second storage cavity are matched with the flow guide holes in the arc-shaped plates, the tissue fluid smoothly flows into the second storage cavity, and the structure constructs an efficient drainage path to efficiently collect the tissue fluid.

This invention discloses a suction device for treating otitis media in children, belonging to the field of otitis media treatment technology. It comprises a fixed spring, a connecting sleeve, a suction catheter, a fixed needle sleeve, and a clamping sleeve. After the fixed block on the inner wall of the clamping sleeve aligns with the arc-shaped groove, releasing the connecting sleeve causes the first moving block to reset within the strip-shaped mounting groove under the rebound of the fixed spring. This moves the connecting sleeve from the mounting sleeve surface to the clamping sleeve surface, while simultaneously squeezing the clamping sleeve to clamp it onto the fixed needle sleeve surface until the fixed block engages in the annular groove. At the same time, the connecting sleeve is pressed against the limiting block, causing the inner wall of the connecting sleeve to squeeze the second rubber retaining ring, thus clamping and fixing the connecting sleeve onto the clamping sleeve surface. This ensures that when the suction needle is inserted into the child's ear canal for suction treatment, the fixed needle sleeve will not detach from the suction catheter surface due to the child's struggles.

To provide a pump configured to be deployed in a patient's body.SOLUTION: A pump assembly for increasing urine output from a patient includes at least one ureteral catheter 614 including a distal portion having a retention portion 624 configured to be positioned in a kidney, renal pelvis, and / or ureter of the patient and a proximal portion defining a drainage lumen. The retention portion includes at least one drainage port 626 that permits fluid flow into the drainage lumen. The pump assembly further includes a pump 612 configured to provide negative pressure to at least one of the renal pelvis or the kidney through the drainage lumen of the at least one ureteral catheter. The pump includes at least one fluid port in fluid communication with the drainage lumen of the proximal portion of the ureteral catheter for receiving fluid from the patient's kidney, and at least a portion of the pump is configured to be positioned within the patient's body.SELECTED DRAWING: Figure 15A

A system for assisting in the retrieval of a clot from a vessel. The system can include an outer catheter and an inner catheter disposed in a lumen of the outer catheter. The inner catheter can include a distal end, a proximal end, a distal segment, a proximal segment, and a lumen extending proximal of the distal end and terminating at a transfer port at the proximal end of the distal segment. A seal is located on the outer surface of the inner catheter distal of the transfer port, the seal capable of sealing against the lumen of the outer catheter so that aspiration applied through the outer catheter is configured to be transferred to the inner catheter.

Disclosed herein is a pulsating aspiration system including a catheter and a pump system. The catheter includes an outer wall, a proximal portion, a distal portion, and an inner wall dividing the proximal portion into a central main lumen and an auxiliary lumen. The pump system is in fluid communication with the catheter and independently controls negative and positive fluid pressures within the central main and auxiliary lumens to generate a pulsating aspiration waveform at the distal end of the catheter that is variable between a maximum aspiration pressure and a maximum positive pressure. The maximum aspiration pressure can be generated at the distal end of the catheter when the resulting pressure is solely negative fluid pressure, and the maximum positive pressure can be generated at the distal end of the catheter when the positive fluid pressure balances the negative fluid pressure.

The present invention provides detachable canisters for use with dental amalgam recycling systems, useful for recycling particles drawn from dental liquid effluent, for example, using a dental amalgam recycling apparatus using an air-water separation tank.

To provide a medical waste collection system for collecting medical waste and a manifold for filtering waste and / or coupling a suction tube to the system.SOLUTION: The system comprises a receptacle in which the manifold is configured to be inserted in a proximal direction with corresponding distal movement of the inlet feature. The manifold comprises arms, spines, locking elements, and / or catches, each of which has a surface having a relative position in the proximal-distal direction. The rim and the catch are spaced apart by a void and the rim is positioned under the catch. The housing includes a body portion, a first leg extending proximally from the body portion, and a second leg spaced from the first leg to define a cavity. The rim may be on the first leg and the catch may be on the second leg.SELECTED DRAWING: Figure 54

The invention relates to a handpiece for use in a surgical procedure such as a phacoemulsification, which handpiece comprises a housing with a proximal and a distal outer end, wherein the handpiece comprises at the distal outer end an aspiration opening for aspirating a surgery site, which aspiration opening is connected to an aspiration channel extending through the housing and which aspiration channel is configured to be connected to a suction force source such as a pump or underpressure system in order to generate a suction force in the aspiration opening, wherein the handpiece comprises an operating element, wherein in a first operative mode of the operating element there is suction force in the aspiration opening and in a second operative mode of the operating element there is no suction force in the aspiration opening.

A negative pressure suction sheath includes a sheath, a negative pressure joint, and a dilator; the negative pressure joint includes a main channel cavity and a negative pressure suction channel cavity located at one side of the main channel cavity, a proximal end of the sheath is connected to a distal end of the main channel cavity, the dilator is inserted from a proximal end of the main channel cavity and extends out of a distal end of the sheath, and is detachably connected to the main channel cavity; the main channel cavity is provided with a side channel port, the negative pressure suction channel cavity is communicated with the side channel port; a cavity wall of the main channel cavity is provided with a pressure regulating port. Therefore, an operator only needs to adjust the size of the pressure regulating port to adjust the negative pressure.

A wearable system for applying a vacuum to breast of a user comprises first and second elastically deformable membranes for positioning over each other and over the breast, with the first (inner) membrane defining a milk collection volume over the breast. The first membrane is manually deformable by actuating the second (outer) membrane, and a valve releases air from the milk collection volume. A pressure reduction is thereby generated when the first membrane tries returns to its default shape. A space between the first and second membranes is vented to the surrounding atmosphere to allow the second membrane to return to its default shape without generating a reduction in pressure. The second membrane functions as a protecting outer layer for the first membrane.

A vacuum suction control system for use with a vacuum source and a suction conduit includes a connection tube configured to connect the vacuum source with a lumen of the suction conduit. An on-off valve is operably coupled to the connection tube, and a sensing unit is configured to detect flow within the connection tube and provide a signal representative of the flow. A controller receives the signal to decide whether to open or close the valve. The controller can automatically close the valve to shut off the flow when the flow through the connection tube is unrestricted or according to a predetermined timing sequence. The controller can also periodically open a closed valve to determine whether the flow has entered an acceptable range. The controller can also pulse the suction with a pressure manipulation assembly when the flow is restricted or occluded.

The application discloses a proximal end joint of a sputum suction tube, the sputum suction tube and a sputum suction mirror. The proximal end joint (10) is provided with a ventilation hole (30) in communication with the atmosphere, and the proximal end joint (10) is connected with an extension piece (20) outside the ventilation hole (30). The extension piece (20) extends from the ventilation hole (30) along the length direction of the proximal end joint (10), and the extension piece (20) and the outer wall of the proximal end joint (10) form an atmosphere channel in communication with the ventilation hole (30) and the atmosphere. The atmosphere channel is provided with an atmosphere communication port (50) at the extension end of the extension piece (20). The proximal end joint of the sputum suction tube can be used in common sputum suction tubes and sputum suction mirrors, and can not only avoid the contamination of fingers of medical staff during the suction of sputum and the cross infection, but also has low cost and is suitable for popularization and use.

Methods and apparatuses for blood clot aspiration. Described are fluid management components and assemblies for blood clot extraction from a patient's body and for filtering blood and recirculating blood back into the patient's body.

Manifold for a medical / surgical waste collection assembly. A shell includes a proximal end base, and a lip extending proximally from the proximal end base. The lip extends around an outlet opening defined in the proximal end base that is off-centered to a longitudinal axis of the shell. A cap including a cap head is coupled to a side wall of the shell. A drip stop may be seated within a space defined by the lip to cover the outlet opening. An arcuate section of the lip may be flush with an adjacent section of the side wall. The cap head may define a through hole, and a flapper valve unit may be coupled to the cap head with another component having ears extending through the through hole. A fence may extend from the cap head and configured to be grasped by a user.

The invention provides a bullous volume reduction system and a control method thereof. A piston in an injector is fixedly connected with a push handle; the second end of the exhaust pipeline is connected with a connector at the front end of the injector, the first end of the exhaust pipeline is connected with the outlet end of the first one-way valve and the second end of the exhaust pipeline, the first end of the exhaust pipeline is connected with the inlet end of the second one-way valve, and the second end of the extension pipe is connected with the air pressure detection module and the inlet end of the first one-way valve. The first end of the extension tube is connected with the puncture needle; the air exhaust subsystem is connected with the CT equipment, the air pressure detection module and the second end of the push handle; the motion state of the push handle can be controlled through the air exhaust subsystem on the basis of preset information, CT image data collected by CT equipment, force borne by the push handle and detected by a force sensor and air pressure data detected by an air pressure detection module, and the operation difficulty of volume reduction of pulmonary bullosa is reduced; and the timeliness of volume reduction of the bullous lung, the accuracy of volume reduction control and the operation standardization can be ensured.

The application discloses a kind of anti-blocking mechanism for closed thoracic drainage, including water seal bottle, the bottle mouth end of water seal bottle is equipped with cover, the cover is fixedly connected with connector, the connector is fixedly connected with drainage hard pipe and vent pipe, the drainage hard pipe is connected with drainage hose, this anti-blocking mechanism for closed thoracic drainage effectively solves the connection of original drainage hard pipe and drainage hose and the gravity when drainage material passes, and the soft drainage hard pipe of connection is bent, and then drainage tube is blocked, simultaneously, necrotic material precipitation, protein deposition meat-like drainage material in drainage material, after being drained into water seal bottle, the tube opening of drainage hard pipe inserted in liquid is easily blocked by meat-like drainage material, cannot normally drain, and then cause the patient to appear pneumothorax and other disease problems.

A cartridge (2600) for use with a medical waste collection system (30). The cartridge includes a housing (2602, 2612) shaped to be removably attached to a receptacle (1699) integral with the housing. A sleeve (2640) is attached to the cartridge to be positioned in front of the housing. The sleeve is formed with a void space. A connector (2664) leading to the suction line for collection is attached to the cannula. A screen (2714) is removably mounted within the casing void space. When it is desired to capture tissue that may be contained in the fluid flow from the suction line, the screen is mounted within the cannula void space.

Fluid reservoir (113; 213; 313) for an aspiration line (107) of a medical system, wherein the aspiration line (107) serves to aspirate a fluid from a surgical site on a living being by means of a fluid pump of the medical system in a suction direction, comprising: - a shell (214; 314) enclosing a chamber (219; 319) designed to hold a fluid; - a separating element (215; 315) that divides the chamber (219; 319) into a first sub-chamber (219a; 319a) and a second sub-chamber (219b; 319b); - a first fluid connection (220; 320) designed to fluidically connect the first subchamber (219a; 319a) to an outer surface of the shell (214; 314), and designed to be connected to a first part (107a) of the aspiration line (107) to be connected to the fluid pump; - a second fluid port (222; 322) designed to fluidically connect the second subchamber (219b; 319b) to the outer surface of the shell (214; 314), and designed to be connected to a second part (107b) of the aspiration line (107) to be directed towards the surgical site; and - a backflow preventer that the separating element (215; 315) has to fluidically connect the first subchamber (219a; 319a) with the second subchamber (219b; 319b), wherein the backflow preventer is designed to prevent a flow of fluid from the first subchamber (219a; 319a) into the second subchamber (219b, 319b) in the opposite direction to the suction direction, and wherein the separating element is a flexible separating element (215; 315), and the flexible separating element (215; 315) is designed in such a way as to achieve a pumping effect of the fluid reservoir (113; 213; 313) in the second subchamber (219b; 319b) when the flexible separating element (215; 315) is deformed by a certain positive pressure difference between the first subchamber (219a; 319a) and the second subchamber (219b; 319b), which enables the conveyance of a certain fluid delivery volume, characterized by the fact that the specific fluid flow volume is chosen depending on the type of operation performed on a living being.

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward a sealing element assembly. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said sealing element assembly; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.