39 results about "Double lumen tube" patented technology

A coaxial double lumen tube adapted for forming an endovascular graft which comprises an outer tube positioned over an inner tube, both tubes being made of a material acceptable for use in endovascular grafts and having an internal and external diameter and a wall thickness, the outer tube having an internal diameter and the inner tube having an external diameter such that a space is created between the outer tube and inner tube, said space being at least partially filled with an uncured adhesive which, upon curing after endovascular implantation, cures to adhere said inner and outer tubes together to form a self-supportive tube.

An enteral feeding catheter (5) that provides access to both the stomach and the jejunum for feeding, aspiration and decompression. The catheter includes a dual lumen “D” tube (30) that joins to an external “Y” connector (25) at the proximal end of the tube. The connector serves both lumens as a source for fluid or aspiration. The gastric lumen (37) and the jejunal lumen (38) of the “D” tube both connect to a transitional connector bolus in the stomach. The gastric lumen of the “D” tube joins with a lumen in the transitional bolus that communicates with a gastric port (27). The gastric port is recessed to the level of its full internal lumen, thereby providing maximum protection against occlusion and maximum area for outflow. The “D” jejunal lumen connects in the bolus with a lumen that transitions from a “D” shape to a full circle shape. The latter provides for the attachment of a smaller, round, single lumen tube that extends into the jejunum. At the distal end of the jejunal tube is a bolus (11) containing an improved port that is also recessed to the level of the floor of the internal tube lumen to provide maximum protection against occlusion and maximum area for outflow. Both the gastric port in the transitional bolus and the jejunal port in the tip bolus may include a structural arch protruding radially outwardly therefrom. An arch is effective to prevent the body segment of either bolus from bending and restricting the ports. The invention also provides for the insertion of the tube over a guidewire (21) rather than with an internal stylet, as is normally the case with nasally inserted tubes.

The intubating airway of the present invention has a shape of a long curved spatula with two channels underneath. The present invention its design, size, shape and adjustable depth of insertion provide it with unique ability to open the airway tract completely, reliably and consistently from the mouth to the larynx. This ability makes it a multifunction device: It can relieve any degree of airway obstruction when all available airway devices have failed. It convert fiber optic intubation and optical stylet intubation from difficult, time consuming and need a lot of experience into quick, easy and simple even by first time user could intubate with high success rate. It facilitates lighted stylet intubation and the intubation of a double lumen tube or nasal tube when it is difficult to intubate, and also facilitate the insertion of a TEE probe or gastroscope or bronchoscope.

Semi-rigid stylets configured with a particular curve shaped and handle design to accurately advance either left-sided or right-sided double lumen endotracheal tubes to be positioned in the appropriate place are described. The semi-rigid stylets have a distal bend to counter or compensate for the inherent curvature of double lumen tubes imparted by the memory of spooled tubing stocks. Other embodiments of the semi-rigid stylets are made of materials that establish only those forces sufficient to cause the necessary bending to route a bronchial cuff to a desired lung location without causing substantial tissue injury. The semi-rigid stylets are also fitted with a curved handle configured to engage a user's thumb for easy manipulation and includes a locking component to engage a nearby tracheal tube extension to stabilize endotracheal tube shapes for insertion into the trachea and bronchial regions.

A right-sided double lumen tube (R-DLT) that is easy to position in a safe and effective manner so as to promote routine use thereof by all anesthesiologists. The R-DLT designed to facilitate the alignment of the lateral orifice thereof with the right upper lobe bronchus. The lateral orifice having an angular width of at least 80 degrees of 360 degrees of the circumference of a tube of the R-DLT.

Thrombus evacuator devices are provided. A cystothrombus provides an aspirator tube fluidly communicating to a suction intake, wherein a maceration blade is provided within the aspirator tube adjacent to the suction intake. A rotational element us operatively associated to the maceration blade for morcellating blood clots urged through the suction intake, wherein the aspirator tube is dimensioned to slidably nest in a cystoscope sheath adapted to be inserted into a human urethra. In another embodiment, a gastroentro-thrombus evacuator includes a double lumen tube having non-fluidly connected first and second lumens terminating into a coupling cavity of a coupling device removably attached to a distal end of the double lumen tube. The coupling device provides a suction intake and a flushing outlet fluidly communicating with the coupling cavity. A rotating maceration blade is operational adjacent to the suction intake, while a suction is urged through the first lumen.

The invention discloses a multifunctional double-lumen tube intubation tube beneficial to airway management in a perioperative period. The multifunctional double-lumen tube intubation tube comprises a long breathing tube and a short breathing tube arranged at one side of the long breathing tube in a sliding manner, one end of the long breathing tube and one end of the short breathing tube are respectively communicated with a breathing machine, the other end of the long breathing tube and the other end of the short breathing tube are set to be communicated with a respiratory tract, at least one of the long breathing tube and the short breathing tube is of a double-wall structure, the double-wall structure comprises an inner wall and an outer wall, a drainage cavity channel is arranged between the inner wall and the outer wall, multiple attraction holes communicated with the drainage cavity channel are formed in one end, contacted with the respiratory tract, of the inner wall, an attraction hole which can suck out secretions inside the drainage cavity channel is arranged at one end, close to the breathing machine, of the outer wall, and a cover body is arranged on the attraction hole. When the multifunctional double-lumen tube intubation tube is used for attracting the secretions in the respiratory tract, the long breathing tube and the short breathing tube do not need to be disconnected from the breathing machine, and the condition that the respiratory tract is damaged due to negative pressure caused by invalid attraction and multiple invalid attraction attempts as the secretions cannot be effectively contacted can be avoided.

The embodiment of the invention discloses a double-lumen bronchial tube, and relates to the technical field of medical equipment. The double-lumen bronchial tube comprises a double-lumen tube, a bronchial blocking tube, a main trachea air bag, a bronchial fixing air bag, a bronchial blocking air bag, an inflation tube and a medicated sputum suction joint, the bronchial blocking tube is connected to the lower end of the double-lumen tube, the main trachea air bag is arranged on the outer side wall of the lower part of the double-lumen tube, the bronchial fixing air bag and the bronchial blocking air bag are sequentially arranged on the outer side wall of the bronchial blocking tube from top to bottom, a medicine spraying and sputum suction port is formed in the bronchial blocking tube between the bronchial fixing air bag and the bronchial blocking air bag, the medicated sputum suction joint communicates with the medicine spraying and sputum suction port through a pipeline penetrating inthe double-lumen tube and the bronchial blocking tube, and the inflation tube is connected with all air bags for air inflation. The technical blanks of medicine adding, sputum suction, temperature measuring and lubrication to the bronchus in the current market are filled up, and greater convenience is provided for clinical use.

The invention discloses a medical multifunctional snare, which comprises a ferrule (1) and a ferrule handle (4) which are connected by a metal wire, and also comprises a double-lumen tube (2), a polyp gripper and a polyp gripping handle (3), wherein the polyp gripper and the gripping handle (3) are connected by the metal wire, the double-lumen tube (2), the ferrule handle (4) and the polyp gripping handle (3) are fixedly connected together, the metal wire for connecting the ferrule (1) and the ferrule handle (4) passes through one lumen of the double-lumen tube (2), and the metal wire for connecting the polyp gripper and the polyp gripping handle (3) passes through another lumen of the double-lumen tube (2). The medical multifunctional snare of the invention is convenient to cut and take out polyps as well as cut sessile polyps, thus not only avoiding the trouble of looking for the polyps in a body, but also greatly facilitating operative procedures, reducing the operation time and easing pain of a patient.

An assembly of a dual lumen tubing and a dual bore connector has a first flow conduit along a first lumen and a first bore, and has a second flow conduit from a second bore, via a circumferential groove and along a second lumen. The assembly can be used in connection with an extracorporeal circuit of a haemodialysis machine or an infusion set.

The invention provides a double-lumen tube and an intubation method. The double-lumen tube comprises a tracheal intubation tube, a partition plate arranged along the length direction of the tracheal intubation tube so as to partition the tracheal intubation lumen into two independent ventilation chambers, a tracheal tube inserted into the two ventilation chambers from the bottom of the tracheal intubation tube, and a ventilation device and an adjustment device arranged at the top of the tracheal intubation tube from the bottom to the top in turn; The ventilation device is in communication withan air source for supplying gas to the two ventilation chambers; The ventilator is fixedly connected with the partition plate; The adjusting device is fixedly connected with the tracheal tube; The tracheal tube is rotatable relative to the axis of the tracheal intubation through the ventilator. And / or at least one of the two tracheal tubes is rotatable relative to its axis by means of an adjusting device; The tracheal tube is telescopic with respect to the tracheal intubation by means of an adjusting device. As that split structure design is adopt, the tracheal tube can be telescoped and rotate, the accuracy of the intubation is improved, the success rate is high, the adjustability is good, and the damage of the tissue is reduced.

A connector of a double-lumen tube for Differential Lung Ventilation is provided. The connector includes a tube connection unit disposed at one side of the double-lumen tube, and branched in one direction to connect to the ventilator, with the pair of lumen tubes of the double-lumen tube inserted into the tube connection unit, a connection valve unit disposed in the one direction in which the tube connection unit is branched, for controlling a flow amount of gas or fluid provided to the respective branched lumen tubes and externally indicating an operation state of a valve that controls the flow amount of the gas or the fluid, and a ventilator connection unit disposed at one side of the connection valve unit, in connection to the ventilator, for providing pressure of the ventilator separately to the pair of lumen tubes through the connection valve unit.

The invention discloses an oropharyngeal airway with closed air sac, including a double lumen pipe, wherein the port of the double lumen pipe can be connected with a breathing air sac. The double lumen pipe includes a conjoined oxygen intake pipe, an oropharyngeal exhaust pipe. The diameter of the oropharyngeal exhaust pipe is larger than the diameter of the oxygen intake pipe. The vent pipes of the oropharyngeal exhaust pipe and the oxygen intake pipe are provided with cover body holes which can move up and down along the oropharyngeal exhaust pipe and the oxygen intake pipe. A closed air sac is connected around the cover body hole. An air sac valve is arranged on the closed air sac. A fixed long belt and a fixed short belt which can be matched and stably connected are provided on two sides of the closed air sac. The oropharyngeal airway divides the intake and exhaust pipes into a double pipe mode, is combined with the closed air sac, greatly improves a patient's absorption capacity of oxygen, eliminates the waste of oxygen resources, can also prevent the pipeline from falling off, thereby avoiding the occurrence of medical accidents, and the closed air sac is combined with auxiliary breathing equipment, can recover the patients who cannot breathe spontaneously, and has the advantages of small compression area and no side injuries around mouths.

The present invention relates to the invention relates to an assembly of a dual lumen tubing as described above and a dual bore connector as described above having a first flow conduit along the first lumen and the first bore, and having a second flow conduit from the second bore, via a circumferential groove and along the second lumen. Such an assembly may be used in connection with an extracorporeal circuit of a haemodialysis machine or an infusion set.

The invention discloses a double-cavity gastric lavage tube. One end is provided with a water injection port, and the other end is plugged and connected with a water injection pump; a section of the water injection pipe is fixedly connected with a section of the gastric lavage tube. The gastric lavage tube is further provided with a plurality of water suction ports, and the water suction port and the gastric lavage tube are integrally formed during manufacture; the gastric lavage tube and the water injection tube form a herringbone structure with a diameter of 0.5 cm. The invention is simple in structure, easy to use, adopts a double-tube structure, shortens the flushing time, has good gastric lavage effect, and is beneficial to the rescue of emergency patients such as poisoning or food poisoning.

The present invention relates to a double lumen endotracheal tube capable of being fixed to the trachea carina, the tube including: a first tube extended in one direction; a second tube extended while being adjacent to the first tube and having an extended portion bent toward one side thereof and extended longer than the first tube; a first balloon extended while passing through the first tube so as to expand or contract a first cuff connected to the end thereof; a second balloon extended while passing through the second tube so as to expand or contract a second cuff connected to the end thereof; and a third balloon extended while passing through between the first tube and the second tube so as to expand or contract a third cuff connected to the end thereof.

The invention belongs to the technical field of connection and plugging of a memory alloy pipeline, and particularly relates to a double-lumen tube connector, a preparation thereof and a using method. The double-lumen tube connector comprises an outer ring, an inner ring, a middle connecting pillar body and a bottom circle; the middle connecting pillar body is connected with the outer ring and the inner ring at both ends; the outer ring and the inner ring are rib structure or rib-free structure. The double-lumen tube connector combines the advantages of the tube joint and the plugging device, and applies the heating fastening and contraction of the outer ring to generate sustainable fastening of the connected tube; the inner ring carries out the elastic support of the inside diameter of the connected tube, and memory recovery support, so as to realize the pipeline connection and blocking functions, and solve the problems that the existed plugging device is easy to leak after connecting. Meanwhile, the two-side double-lumen tube design is applied to the pipeline connection; the inside of the outer ring and the outside of the inner ring are provided with axial supporting ribs or the peripheral supporting ribs; through the design of the supporting rib, the twisting resistance, fastening connection, sealing and pugging performance can be effectively improved.

The invention provides a combined double-lumen bronchial catheter, and relates to the technical field of medical devices. The combined double-lumen bronchial catheter comprises a main pipe, wherein the main pipe is connected with an auxiliary catheter which can move up and down relative to the main pipe, a main pipe cuff is connected with the main pipe near the lower end, the auxiliary catheter isconnected with the auxiliary catheter cuff near the lower end, and the diameter of the main pipe is 5-7mm, the diameter of the auxiliary duct is 3-5mm, and that inn wall of the main and auxiliary conduits are connected with a bending-resistant layer of the main conduit. The bending-resistant layer of the main conduit is connected with the inner wall of the auxiliary conduit. The invention solvesthe technical problem that the conventional double-lumen tube is very difficult to be inserted into some special patients through the conventional oral route in the prior art, and not only has great damage to the patients, but also has high failure rate. The invention has the advantages that two single-lumen bronchial tubes with different diameters can be inserted into the target bronchus respectively, the combined structure and position of the double-lumen tubes can be flexibly adjusted according to the airway conditions of the patient, and the intubation and positioning technology of the traditional double-lumen tubes are simplified. Anti-bending catheter, always keep unobstructed in use, safe and convenient to use, the patient's airway injury is more slight.

The present invention discloses a visual flexible double-lumen tube cannula, which includes a dual-lumen tube, bronchial tubes, a tube core, a display, and a cannula control system mounted in the display. The double-lumen tube is internally provided with a partition plate, and the double-lumen tube is divided by the partition plate into two parallel adjacent lumens of a main tube and a side tube,the bronchial tubes is connected in series at the end of the double-lumen tube, and the bronchial tube and the main tube of the double-lumen tube is connected, the two ends of the tube core are respectively provided with a connection plug and a video device, one end of the tube core and the video device are installed in the main tube, the connection plug is connected to the display, and the display, the tube core and the video device are controlled by the cannula control system. The visual flexible double-lumen tube cannula has a simple and practical structure, can be bent, realizes visualizedoperation, and has the advantages of good safety, high success rate, short intubation time, and convenient use.

A tube coupling system serves for providing annular flow through a flexible annular double lumen tube between fluid reservoir(s) and flexible connection pieces of an annular double lumen device. The tube coupling system has a first coupling component and a second coupling component and an end fitting system. The first coupling component that has a female coupling part and a male coupling part adapted for coupling to a proximal end of the flexible annular double lumen tube. The second coupling component has a second interior pipe that axially extends inside a second exterior pipe, a first end fitting adapted for coupling to at least the female coupling part of the first coupling component, and a second end fitting adapted for coupling to any of the flexible annular double lumen tube or the flexible connection pieces of an annular double lumen device.

The invention discloses a forming process of a double-cavity tube. The forming process comprises the following steps of respectively obtaining an inner cavity tube and an outer cavity tube, sleeving the outer cavity tube outside the inner cavity tube, keeping the shapes of the inner cavity tube and the outer cavity tube unchanged, adhering the inner wall of the outer cavity tube to the outer wall of the inner cavity tube to form a wall adhering part, sleeving a heat-shrinkable sleeve outside the outer cavity tube, heating the heat-shrinkable sleeve, enabling the heat-shrinkable sleeve to wrap the outer cavity tube in a heat shrinkage mode, and welding the inner cavity tube and the outer cavity tube of the wall adhering part. The invention further discloses the double-cavity tube. Firstly, the inner cavity tube and the outer cavity tube are obtained respectively, then the double-cavity tube is obtained in a mode that the inner cavity tube and the outer cavity tube are welded, the thickness of the tube wall of the formed double-cavity tube is smaller, the effective utilization area of the cavity is larger, the utilization rate of the cavity is higher, and the double-cavity tube is particularly convenient to apply to the field of medical intubation tubes.

A double lumen endotracheal tube capable of being fixed to the trachea carina. The double lumen endotracheal tube includes: a first tube extended in one direction; a second tube extended while being adjacent to the first tube and having an extended portion bent toward one side thereof and extended longer than the first tube; a first balloon extended while passing through the first tube so as to expand or contract a first cuff connected to the end thereof; a second balloon extended while passing through the second tube so as to expand or contract a second cuff connected to the end thereof; and a third balloon extended while passing through between the first tube and the second tube so as to expand or contract a third cuff connected to the end thereof.

The invention belongs to the technical field of connection and plugging of a memory alloy pipeline, and particularly relates to a double-lumen tube connector, a preparation thereof and a using method. The double-lumen tube connector comprises an outer ring, an inner ring, a middle connecting pillar body and a bottom circle; the middle connecting pillar body is connected with the outer ring and the inner ring at both ends; the outer ring and the inner ring are rib structure or rib-free structure. The double-lumen tube connector combines the advantages of the tube joint and the plugging device, and applies the heating fastening and contraction of the outer ring to generate sustainable fastening of the connected tube; the inner ring carries out the elastic support of the inside diameter of the connected tube, and memory recovery support, so as to realize the pipeline connection and blocking functions, and solve the problems that the existed plugging device is easy to leak after connecting. Meanwhile, the two-side double-lumen tube design is applied to the pipeline connection; the inside of the outer ring and the outside of the inner ring are provided with axial supporting ribs or the peripheral supporting ribs; through the design of the supporting rib, the twisting resistance, fastening connection, sealing and pugging performance can be effectively improved.

An integrated multi-lumen tubing includes two or more lumens. A webbing is provided between each of said two or more lumens and holding the two or more lumens together as a ribbon. A set of terminations are provided at opposing ends of each of the two or more lumens. A sheath can also be provided surrounding the two or more lumens. A system for supply of intravenous fluid and vacuum to a patient includes the aforementioned integrated multi-lumen tubing. An intravenous bag or bottle is provided that is in fluid communication with an infusion pump. The integrated multi-lumen tubing connects the infusion pump and a vacuum pump to a percutaneous access device (PAD). A method of using said integrated multi-lumen tubing to delivery simultaneously two or more inputs into a subject in need thereof is also provided.

Double lumen tubing (10) having a substantially circular cross-section and comprising a tubular wall (12) each extending about a longitudinal central axis of the tubing (12), and having a wall thickness being defined between the outer surface (14) and the inner surface (16). The tubing (10) comprises an inner wall (18) inside the tubing (10) for dividing it into a first (20) and a second (22) lumen, the inner wall (18), and each lumen (20; 22) comprising a cross section with an arcuated portion (24; 24' ) and a substantially plane portion (26; 26' ) opposite to the arcuated portion (24; 24'), the plane portions (26; 26') of the lumens (20; 22) lying adjacent to one another. Further, a centre region (30) of the arcuated portion (24; 24') of the cross section of at least one of the first (20) or second (22) lumen, and the regions (39) where the tubular wall (12) meets the inner wall (18), have a wall thickness that is smaller than the wall thickness of two tubular wall regions (32; 34) located left and right of said centre region (30).

The invention provides an adjustable lung separating ventilation component. The effects that the air flow of an inspiratory phase is adjustable and the air flow of an expiratory phase is not limited are achieved. The component can be connected to the tail end of the affected side of a double-lumen tube; in the inspiratory phase, the ventilation volume of oxygen inlet through an air inlet passage can be controlled through an adjusting knob; in the expiratory phase, the expiratory air flow is not blocked in an air outlet passage, which is beneficial to CO2 exhaust. Therefore, while appropriate ventilation is conducted on the affected side lung, surgical operation is not influenced, and it is avoided that air stays in the affected side lung; by means of the adjustable lung separating ventilation component, the ventilation way is simplified, single lung ventilation is improved, and negative effects brought by high concentration oxygen uptake are avoided.

The invention relates to an endodural irrigation and drainage tube for treating spinal cord injury or infection and a use method thereof, a main body of the irrigation and drainage tube is divided into a first conveying channel and a second conveying channel which are parallel to each other by a longitudinal partition plate to form a double-lumen tube structure; after the flushing drainage tube penetrates through the epidural sac, an injury focus is covered through the inclined end face of the inner water outlet and the position difference between the inner water outlet and the inner water inlet, and the injury focus in the epidural can be directly flushed and treated through a nutrient solution conveyed through the first conveying channel. An oxygen-containing nutrient solution and various nerve and blood vessel growth factors and antibiotics are provided for the injury focus, and meanwhile, toxic substances such as local free radicals, inflammatory factors and bacteria are drained out, so that a microenvironment suitable for cell repair and regeneration and blood vessel regeneration is created for the injury focus; the outer contour of the section of the flushing drainage tube body is of an olive-shaped structure, the transverse diameter is short, and a puncture hole of an epidural sac can be closed easily after the tube is pulled out. The structure is simple, operation is convenient, safe and reliable.

A tube coupling system serves for providing annular flow through a flexible annular double lumen tube between fluid reservoir(s) and flexible connection pieces of an annular double lumen device. The tube coupling system has a first coupling component and a second coupling component and an end fitting system. The first coupling component that has a female coupling part and a male coupling part adapted for coupling to a proximal end of the flexible annular double lumen tube. The second coupling component has a second interior pipe that axially extends inside a second exterior pipe, a first end fitting adapted for coupling to at least the female coupling part of the first coupling component, and a second end fitting adapted for coupling to any of the flexible annular double lumen tube or the flexible connection pieces of an annular double lumen device.