198 results about "Suction catheter" patented technology

Provided is a suction catheter including: a catheter main body made of a flexible lengthy body having a lumen inside; a leading-end case portion positioned at a leading-end portion of the catheter main body and including an opening for retrieving an object; and object cutting means partially exposed through the opening and movable in the axial direction within the leading-end case portion. The object cutting means includes a cutting portion exposed through the opening portion, and a power receiving portion driving the cutting portion when receiving power from outside. A leading-end side of the suction catheter is inserted into a blood vessel while a base-end portion of the suction catheter is connected to a suction apparatus. An object sticking to the internal wall of the blood vessel is cut off by operating the object cutting means in the opening of the leading-end case portion while the lumen is vacuumed. The cut-off object is immediately sucked in and retrieved.

The present invention relates to closed catheter suction systems used to aspirate secretions from the trachea of a patient and to rinse the catheter after such aspiration. The apparatus comprises a flexible suction catheter encased within a sheath that is fixed to a vacuum source at its proximal end and extendable through an adapter assembly at its distal end, near the patient. The adapter assembly connects the closed catheter suction system to a patient connector, and a suction control valve at the proximal end operates to aspirate secretions and to rinse the catheter. The closed catheter suction system also includes a lavage port and a rinse port, the latter of which is positioned near the distal end and is isolated from the ventilation circuit through the innovative use of a rinse chamber and a one-way valve. Advantageously, the lavage port is positioned near the proximal end, away from the patient, so as to prevent the accidental leakage of lavage into the ventilation circuit. Further, both the lavage port and the rinse port include a self-closing fill-valve that prevents the accidental loss of ventilator volume and which also prevents the discharge of infectious pathogens to the surrounding environment throughout the aspiration and rinse procedures.

A catheter having one or more radially expanded portions that comprise a guidewire lumen. The guidewire lumen and the main lumen of the catheter are not separate and share the same fluid space. The catheter maintains a large, circular lumen for aspiration or delivery. The catheter is made by lacing a guidewire lumen mandrel through openings made in the catheter shaft and then forcing the shaft to expand radially to create a guidewire lumen.

A thrombus suction catheter which is a tube having a distal end opening formed by an angled cut surface. In the distal end opening, at least a part on the proximal end side of the cut surface is formed in a concave shape in an angled direction, and the distal end side of the cut surface is formed to be flat and flexible. With the distal end configuration, suction and crossing are significantly improved.

A minimally invasive method of and apparatus for aspirating purulent material from an epidural abscess, or the like, in a patient includes a dual concentric catheter system having an inner infusion catheter and an outer suction catheter, the infusion catheter able to be advanced relative to and beyond the suction catheter. The catheter system is introduced into the extradural space through percutaneous entry and advanced to an epidural abscess of interest. Infusion is used to dislodge purulent material ahead of the infusion catheter toward side openings in the suction catheter where it is aspirated.

The invention discloses a thrombus breaking and collecting mechanism of a thrombus capturing and removing catheter device, and belongs to the field of vascular intervention medical instruments. The mechanism comprises a three-way suction connector, a suction inner tube, a two-way outer tube connector, an outer tube, a self-expansion net basket support, a tip cap, a guide wire guide tube and a separator; the far end of the three-way suction connector is in sealed connection with the near end of the suction inner tube, the far end of the two-way outer tube connector is in sealed connection withthe near end of the outer tube, and the inner tube is inserted into the outer tube. The mechanism further comprises a self-expansion net basket support, a tip cap, a guide wire guide pipe and a separator. The separator is arranged at the far end of the catheter device, thrombus can be split and guided into the suction catheter, and the risk that the thrombus blocks the suction opening is reduced;the self-expansion net basket support arranged near the suction opening can scrape wall-attached thrombus, and the thrombus taking-out rate is increased; meanwhile, the self-expansion net basket support can collect thrombus, the thrombus is prevented from escaping to the far end, and the occurrence rate of operative complications is reduced.

The invention discloses an intravascular thrombus suction catheter device and a mesh basket assembly thereof, and belongs to the field of vascular intervention medical treatment. The device comprisesa three-way connecting base, a catheter, a connecting base and a conveying sheath tube, and further comprises an expandable guide head end and a self-expansion mesh basket assembly. The self-expansionmesh basket assembly consists of a mesh basket conveying pipe, a hammer-like guide cap, a mesh basket supporting pipe and a self-expansion mesh basket, wherein the mesh basket conveying pipe is inserted into the catheter, the hollow hammer-like guide cap is arranged at the far end of the mesh basket conveying pipe, the mesh basket supporting pipe is inserted into the mesh basket conveying pipe, and the self-expansion mesh basket is fixed to the far end of the mesh basket supporting pipe. The hammer-like guide cap serving as a thrombus breaking separator is arranged at the suction opening in the head end of the far side of the catheter and used for breaking and separating thrombus blocked at the suction opening of the suction catheter; and the self-expanding mesh basket is arranged at thefar end of the lesion thrombus and used for scraping and collecting thrombus tissue attached to the wall of a blood vessel, and besides, the collected thrombus tissue is pushed to the position near the suction opening in the near end of the suction catheter.

A device and method for removing material from inside a tube is provided, comprising a catheter having a tubular body and defining an inner lumen, the distal end portion of the tubular body defining a distal opening and apertures on a sidewall. An expandable member is attached to the distal end portion of the catheter tubular body distal to the one or more apertures. The expandable member is capable of having a first unexpanded condition such that the distal opening is open to allow fluid communication with the inner lumen of the catheter through said distal opening, and a second expanded condition such that the distal opening is occluded to prevent fluid communication with the inner lumen of the catheter through said distal opening, the second expanded condition of the expandable member having a maximum transverse diameter larger than a diameter of the tubular body proximal to the expandable member.

The invention relates to a novel infantile pneumonia nursing instrument, and belongs to the technical field of medical instruments. The novel infantile pneumonia nursing instrument comprises a nursing instrument body, a sputum suction cup storage box is arranged on the front side of the nursing instrument body, a sputum suction cup is arranged inside the sputum suction cup storage box, an internal sputum suction catheter and a capacity attention table are arranged on the sputum suction cup, a sputum suction catheter fixing device is arranged on the internal sputum suction catheter, a metal clamp groove is formed in the sputum suction cup storage box, the sputum suction cup storage box is connected with a sputum suction cup storage box protecting cover through rotating hinges, a metal clamp lock is arranged on the sputum suction cup storage box protecting cover, and a miniature printing device is arranged on the right side of the sputum suction cup storage box. The novel infantile pneumonia nursing instrument is simple in structure and convenient to operate, medical workers can nurse patients with infantile pneumonia according to an established nursing plan, effects are improved, and the workload of the medical workers is relieved.

The invention provides a fixing unit for sealant UV cure machine. The fixing unit comprises a fixing frame, a plurality of light shield glass support rods, and a gas suction component. The fixing frame forms an external frame. The light shield glass support rods are arranged on internal side of the fixing frame with predetermined distance space, and each light shield glass support rod has a through gas suction pipe. Both ends of the gas suction pipe connect with bottom of the light shield glass support rods. The gas suction component communicates with the gas suction pipe of the light shield glass support rods to suck in and discharge gas.

A pneumatic medical system, which includes a collection canister with a lid. Integrally attached to the lid are inlet and outlet ports, a thumb valve to regulate the level of suction or pressure in the system, a clip to hold a loop of catheter, an endotracheal tube adaptor, and a single hole for a single-suction catheter. The suction catheter has telescoping lengths and sizes of catheter attached so that the user can increase the diameter of catheter to be used by removing smaller diameter catheters. A smaller diameter catheter can be removed by pulling the smaller diameter catheter through the telescoping nested attachment with the larger diameter catheter. If the canister becomes full or clogged, it can be easily cleared by tipping the canister and pouring the contents through the thumb valve. The system requires only one hand and is easy to hold and manipulate. A disposable and pre-filled irrigation system is also disclosed.

Disclosed is a novel multifunctional surgical flushing and suction catheter. The novel multifunctional surgical flushing and suction catheter is characterized by comprising a multifunctional integrated channel (1), a three-channel or multi-channel joint (2) and a function input portion (3); a multi-channel structure is formed inside the multifunctional integrated channel (1) through partition plates; the three-channel or multi-channel joint (2) is arranged at a connection mechanism end of the multifunctional integrated channel (1); at least an outlet end which is communicated with a suction channel and a flushing channel is arranged in the three-channel or multi-channel joint (2); the function input portion (3) comprises two or more than two functional pipelines; one end of each pipeline is connected with the corresponding one of the joints which are arranged in the three-channel or multi-channel joint (2), wherein the number of the joints is matched with that of channels of the multifunctional integrated channel (1); the other ends of the pipelines are communicated with a corresponding function conveying device; at least one suction hose which is connected with the suction channel and at least one flushing hose which is connected with the flushing channel are arranged in the pipelines and connected with a medical suction apparatus and a medical flushing water source respectively. According to the novel multifunctional surgical flushing and suction catheter, the operation is convenient, the labor is saved, the structure is simple, the use is convenient, and the flushing effect is good.

The invention discloses a nasal cavity, nasal septum double-site spreader capable of fully exposing the nasal cavity deep surgery field and effectively exposing the nasal septum surgery field, mainly formed by connecting the symmetrical left, right pliers by the tongs axle and a supporting arm at the front part of the tongs is arc and the front part of the supporting arm contracts inwards and the back part of the supporting arm projects outwards in S shape and the supporting arm bends upwards from the back projection part to form an upwarping forepart and a horizontal backpart and supporting leaves are respectively set on the front end of the forepart and the supporting leaves are set above the forepart and the ends of the supporting leaves point to the symmetric center lines of the left, right tongs. The nasal cavity, nasal septum double-site spreader is capable of fully exposing the nasal cavity deep surgery field and effectively exposing the nasal septum surgery field. The suction catheters can quickly suck the effusion and effused blood to ensure the deep surgery field clear, thereby providing the operation space and visual field for the clinical operation. In addition, the used gear positioning device has features of firm structure and convenient operation.

The invention discloses a thrombus suction catheter. The thrombus suction catheter comprises a catheter body, and the distal end of the catheter body is provided with a soft head and an expandable tracer mark embedded in the soft head; the expandable tracer mark is one or more Z-shaped closed structures, wavy closed structures and precut or half-cut annular structures or precut or half-cut spring-shaped structures which are developed in visual light. When the maximum outer diameter and maximum inner diameter of the thrombus suction catheter are limited by the sizes of the applied blood vessels, the soft head at the distal end and the expandable tracer mark can effectively increase the radial sectional areas of a suction hole and a suction cavity, thrombus and other embolic substances in the blood vessels can be stably, efficiently and rapidly removed, and the problems of low suction efficiency and thrombus stripping caused by the small radial sectional area of the suction cavity in the prior art can be effectively solved.

The invention discloses a suction catheter. The suction catheter comprises a catheter body and a balloon which is connected to the outside of the catheter body and is used for stopping blood flow after expanding; a guide wire infusion cavity for infusing normal saline and/or circulating blood flow, a suction cavity for absorbing thrombi under negative pressure and a balloon cavity for inflating and deflating the balloon are formed in the catheter body; a guide wire is detachably inserted in the guide wire infusion cavity; the guide wire infusion cavity communicates with two sides of the balloon and comprises a positioning section for penetrating through the thrombi; and the positioning section and a suction opening of the suction cavity are arranged on the same side of the balloon. According to the suction catheter, the balloon stops blood flow, the suction cavity can provide the negative pressure, the guide wire infusion cavity can form cavities communicating with the two sides of theballoon, blood flow and/or normal saline are/is provided for thrombus far ends from the guide wire infusion cavity to increase the pressure of the thrombus far ends, difference between pressures of the two sides of a thrombus can be increased under cooperation of the suction cavity, thrombi are pushed to the suction opening, and the suction effect can be improved.

A suction connector, comprising a fluid passage (31) having one end to be connected to a conduit and the other end to be connected to a suction source when in use and a ventilating passage (32) branched in the middle of the fluid passage and having an opening end (33), wherein a blocking plate (34) is disposed at least at a partial region on a fluid passage side inside the ventilating passage, the cross-section of the ventilating passage is divided by the blocking plate into a plurality of regions, and fluid advancing from the fluid passage into the ventilating passage is prevented by the blocking plate from flowing out from the opening end, whereby a sucking force caused by an releasing a negative pressure can be regulated sufficiently, spattering of fluid can be surely prevented to thus eliminate the danger of contamination and infection to an operator and assuring sanitation, and a structure is simplified.