34 results about "Feeding catheter" patented technology

A catheter assembly incorporating a pre-biased indicator, the assembly includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. The assembly further includes a base located at the proximal end of the catheter, the base defining an opening to the catheter lumen, the base having a first end and a second end. An inflatable balloon having a predetermined fill volume is located at a distal end of the catheter. An inflation valve is located on the base; the inflation valve is in fluid communication with the balloon through an inflation lumen defined by the catheter walls. The pre-biased indicator located on the base in fluid communication with the balloon is configured to provide a discrete visual signal that the pressure of a fluid in the balloon is different from a predetermined level of pressure or the volume of the balloon is different from the predetermined fill volume.

The invention discloses an intravascular stent with complex functions. The intravascular stent comprises a stent main body which is mesh-shaped and can be released from and retracted to a feeding catheter, wherein a near end of the stent main body is openly conical, the middle part of the stent main body is circular tube-shaped, and a far end of the stent main body has a closed structure; and the stent main body has a mesh shape which is woven by single wires or a plurality of wires or is engraved by a laser engraving machine. The stent which is taken as an acute thrombus removal system can quickly and efficiently take out thrombi, and can also capture small thrombi which flow toward the far end so as to avoid secondary stroke caused by the thrombus blockage of the far end; the stent which is taken as a temporary stent expands intracranial blood vessels or narrow and blocked blood vessels on other parts of human bodies, plays the effects of dredging and reconstructing blood flow, and can capture small thrombi or emboli; and the stent which is taken as a long-term implanted stent performs adjuvant therapy on arterial aneurysms of furcations, and fills in a market gap. If the position of the stent is not satisfactory, the entire stent can be retracted to the feeding catheter, and is released again. The maneuverability of the stent is high, so the operation difficulty is reduced, and the surgical success rate is greatly improved.

A balloon catheter device, for example an enteral feeding catheter, includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. A base is located at the proximal end of the catheter and has an opening to the catheter lumen. An inflatable balloon is located at a distal end of the catheter and is inflated through an inflation valve located on the base. An internal cavity is defined in the base and is in fluid communication with the inflatable balloon such that fluid used to inflate the balloon to an operational fill volume fills the internal cavity as well. A translucent window is disposed over the internal cavity such that an interior volume of the cavity is externally viewable. Introduction of a colored fluid through the inflation valve to inflate the balloon results in the colored fluid also being present in the internal cavity, thereby providing an externally visual indication of the inflation state of the balloon.

Devices and methods to measure gastric residual volume (GRV) are described where at least one additive component (a GRV indicator) may be dispersed in a body lumen such as a stomach. The GRV indicator may changes a physical (chemical, electrical, thermal, mechanical, optical, etc.) characteristic within the stomach by a measureable degree. This degree of change and / or the rate of return to the previous state, may be used to determine the GRV of a patient. The determined GRV can also be used to automatically or semi-automatically control the patient's feeding rate and / or volume and / or frequency to adequately nourish the patient but avoid complications. The physical characteristic(s) may also be used to detect that the feeding catheter or tube is in the correct location (ie stomach vs lung or esophagus.

A device (1) for closing an opening (2) in a septum (4) of a heart (3) comprises: at least two closure elements (12) with threads (8) for closing the opening (2), a feed catheter (5) for insertion of the closure element (12) into the heart (3), a puncture cannula (6), a stylet (7) for pushing the closure element (12) out of the puncture cannula (6), and a screw catheter (10) having a coil (11) for penetration the edge of the opening (2). The puncture cannula (6) and the elements (12) can be moved through the screw catheter (10) and the coil (11). If the edges of the opening (2) overlap, a lobe (15) away from the feed catheter (5) can be kept in place with a second coil (111), or a suction tube (16) during placement of the anchor (12).

The invention discloses an individualized guiding template assisting in setting a pedicle screw into a small incision. The individualized guiding plate comprises at least one group of pedicle screw setting components, each pedicle screw setting component comprises two bottom plates arranged on two sides of a spindle section to be set with a screw symmetrically and two screw feed catheters fixed on the bottom plates respectively, the structures of the bottom plates are matched with the spindle anatomical structure around a point to set the screw, the screw feed catheters are determined by screw setting channels through reasonable calculation and connected on the bottom plates. The bottom plates are connected with the screw feed catheters determined by the screw setting channels through reasonable calculation, accuracy in screw setting and safety in operation can be guaranteed without X-ray examination, and ray exposure of medical staff and patients is reduced.

The invention discloses a drug feeding device for an oral laryngeal part, which comprises a drug feeding catheter and a drug storage bottle connected with the drug feeding catheter; the front end of the drug feeding catheter is provided with a drug nozzle, and the outside end of the drug feeding catheter is provided with a piston push rod; the drug nozzle is connected to the inside end of the drug feeding catheter through a rotating shaft and a control hole is arranged in the side wall of the drug feeding catheter; a pull cable is arranged in the control hole, one end of the pull cable is fixed in the middle of the side face of the drug nozzle; a reset spring is arranged between the side face of the drug nozzle and the drug feeding catheter, and the reset spring and the pull cable are arranged on a symmetrical side face of the drug nozzle; the outside end of the drug feeding catheter is provided with a rotary supporting base, and a winding shaft is arranged on the rotary supporting base. The drug feeding device is reasonable in structure setting and convenient to operate; the drug nozzle position is adjusted as required; meanwhile, the drug spraying amount can also be controlled; therefore, the application range is greatly improved, the using stability is good and the practicability is strong.

Provided herein is an enteral safe feeding catheter that allows for a higher rate of delivering liquid food and / or drugs to the stomach and / or duodenum of a mammal while simultaneously allowing for aspiration of any regurgitated reflux escaping the stomach into the esophagus. Systems incorporating the catheter and methods of use thereof are also provided herein.

The invention discloses a drainage-tube with high negative pressure and zero accumulation, which comprises a built-in tube (1), a drug feeding pot (2), a drug feeding catheter (3) and a drainage external nozzle (5); the wall of the built-in tube is provided with side outlets (6) used for drainage; the rear end of the built-in tube is sheathed with the front connector of the drug feeding pot and communicated with the drainage external nozzle which is sheathed with the rear connector of the drug feeding pot; a tubulose net sleeve or a long-rectangular net piece (11) which is made from soft netty materials runs through the built-in tube; the front end of the tubulose net sleeve, after going through the front end of the built-in tube or the side outlet (15) of the tubulose net sleeve positioned at the front end of the built-in tube, is folded inversely to sheathe on all side outlets; the rear end of the tubulose net sleeve or the long-rectangular net piece is inducted in the drug feeding pot and then sealed and fixed; an inner tube (14) provided with side outlets used for draining on the tube wall and the tubulose net sleeve or the long-rectangular net piece are positioned in and run through the built-in tube in parallel; the rear end of the inner tube is connected to the internal connector of the rear part of the drug feeding pot and communicated directly with the drainage external nozzle that is sheathed with the external connector of the rear end of the drug feeding pot. The drainage-tube is not easily blocked and can adopt higher negative pressure drainage, and the net sleeve can be pulled out from the connector of the drug feeding pot.

The invention relates to a fixing device capable of precisely feeding a catheter during surgery and a working method thereof, and belongs to the field of medical instruments. The fixing device comprises a base, guiding holes are formed in the base, the guiding holes are internally matched with guiding rods, a shelf is fixed to the tops of the guiding rods, a lifting air bag is arranged between theshelf and the base and connected with a power air bag through an air guiding pipe, a one-way valve is arranged on the joint of the lifting air bag and the air guiding pipe, an air releasing valve isarranged on the lifting air bag, stopping blocks are fixed to the bottoms of the guiding rods, the guiding rods are sleeved with lifting springs, and the lifting springs are located between the stopping blocks and the base. By means of the fixing device, the catheter can be properly lifted up according to the surgical condition, so that air is prevented from entering a human body to cause air embolism; the catheter can be quantificationally and precisely fed according to the surgical condition, so that the surgical effect is guaranteed.

The invention relates to an injection molding pre-buried device, and comprises a support block, a limiting slide, a positioning plate and a pushing mechanism. The support block is internally providedwith a feed passage arranged in a horizontal direction, one end of the feed passage is connected with a fixed hole of a pre-buried part on a injection molding mold plate through a positioning ring ofthe pre-buried part, and the other end is connected with a feed catheter; and the positioning ring of the pre-buried part is coaxial with the feed passage; the positioning ring of the pre-buried partis provided with a shrink neck section, and the end of the shrink neck section is provided with a fastening ring which is used for fastening limit of the pre-buried part; a plurality of pre-buried parts are successively arranged from top to bottom in the limiting slide, and the bottom end of the limiting slide is connected with the feed catheter; the positioning plate is arranged between the bottom of the limiting slide and the feed catheter, and the position of the outlet of the corresponding limiting slide on the locating plate is provided with a limiting through hole; and the pushing mechanism is arranged on one side of the feeding catheter and is used for pushing the pre-buried part into the feeding catheter into the fixed hole of the pre-buried part on the injection mold plate. According to the injection molding pre-buried method, accurate placement of insert on the mold is accurately and quickly realized, and the high stability after placement is ensured.

The invention relates to an injection molding pre-buried method. Based on an injection molding pre-buried device, and the injection molding pre-buried device comprises a support cushion block, a limiting slide, a positioning plate and a pushing mechanism. The support block is internally provided with a feeding passage arranged in a horizontal direction, one end of the feeding passage is connectedwith a fixed hole of a pre-buried part on a injection molding mold plate through a positioning ring of the pre-buried part, and the other end is connected with a feeding catheter; a plurality of pre-buried parts are successively arranged from top to bottom in the limiting slide, the bottom end of the limiting slide is connected with the feeding catheter; the positioning plate is arranged between the bottom of the limiting slide and the feeding catheter, and the position of the outlet of the corresponding limiting slide on the locating plate is provided with a limiting through hole; the pushingmechanism is arranged on one side of the feeding catheter and is used for pushing the pre-buried part into the feeding catheter into the fixed hole of the pre-buried part on the injection mold plate.According to the injection molding pre-buried method, accurate placement of insert on the mold is accurately and quickly realized, and the high stability after placement is ensured.

A separation device having a housing (10) with a feed conduit (1) and a reject conduit (2), between which conduits (1, 2) and an accept conduit (3) of the housing (10) is a rotor unit (13) having a shaft (4) transverse to the through-flow direction of the separation device, which shaft rotates discs (5) attached to the shaft (4), the outer surface and / or side surfaces of which discs are jagged, i.e. they have protrusions (6) and / or notches and / or these surfaces are substantially rough and the teeth (9) of at least two sieves (7, 8) attached to the housing (10), extend between the discs (5), the first sieve (7) being between the reject conduit (2) and the accept conduit (3) and the second sieve (8) being between the feed conduit (1) and the accept conduit (3).

An enteral catheter provides access to both the stomach and the deep jejunum for feeding, aspiration and decompression. The catheter includes a triple lumen 16Fr tube that joins to a triple lumen “Y” connector at the proximal end of the tube. The connector serves the three lumens as a source for venting air, for fluid aspiration and for fluid infusion. The catheter includes a gastro / jejunal bolus which provides a large effective recessed port size opening varying from 172 degrees around the circumference of the bolus to a maximum recess circumference of 350 degrees. The gastric aspiration lumen, the jejunal feeding lumen, and the air vent lumen, all connect to the gastro / jejunal or midport connector bolus in the stomach at the distal end of the three lumen tube. The gastric lumen and the air vent lumen both open into the stomach through a common gastric port by the midport bolus. The jejunal lumen in the 16Fr tube communicates with jejunal lumen in the jejunal tube. The midport bolus provides for the attachment of a smaller, round single lumen 8Fr lumen tube that extends into the jejunum and terminates at its distal end with a tip bolus. Both the gastric lumen and the air vent line terminate at the same point side by side into the common gastric port in the midport bolus. The gastric port is recessed to the level of its full internal lumen in the midport bolus, thereby providing a recess for maximum protection against occlusion and maximum area for outflow and inflow. The midport bolus and the jejunal port in the tip bolus include a structural arch protruding radially outwardly therefrom. The arch is effective to prevent the body segment of the bolus from bending and restricting the ports. At the distal end of the jejunal tube, the tip bolus contains an improved port that is recessed to just below the internal radius of the tube lumen to provide maximum protection against occlusion and maximum area for outflow.

The invention discloses a drainage-tube with high negative pressure and zero accumulation, which comprises a built-in tube (1), a drug feeding pot (2), a drug feeding catheter (3) and a drainage external nozzle (5); the wall of the built-in tube is provided with side outlets (6) used for drainage; the rear end of the built-in tube is sheathed with the front connector of the drug feeding pot and communicated with the drainage external nozzle which is sheathed with the rear connector of the drug feeding pot; a tubulose net sleeve or a long-rectangular net piece (11) which is made from soft netty materials runs through the built-in tube; the front end of the tubulose net sleeve, after going through the front end of the built-in tube or the side outlet (15) of the tubulose net sleeve positioned at the front end of the built-in tube, is folded inversely to sheathe on all side outlets; the rear end of the tubulose net sleeve or the long-rectangular net piece is inducted in the drug feeding pot and then sealed and fixed; an inner tube (14) provided with side outlets used for draining on the tube wall and the tubulose net sleeve or the long-rectangular net piece are positioned in and run through the built-in tube in parallel; the rear end of the inner tube is connected to the internal connector of the rear part of the drug feeding pot and communicated directly with the drainage external nozzle that is sheathed with the external connector of the rear end of the drug feeding pot. The drainage-tube is not easily blocked and can adopt higher negative pressure drainage, and the net sleeve can be pulled out from the connector of the drug feeding pot.

A catheter assembly incorporating a pre-biased indicator, the assembly includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. The assembly further includes a base located at the proximal end of the catheter, the base defining an opening to the catheter lumen, the base having a first end and a second end. An inflatable balloon having a predetermined fill volume is located at a distal end of the catheter. An inflation valve is located on the base; the inflation valve is in fluid communication with the balloon through an inflation lumen defined by the catheter walls. The pre-biased indicator located on the base in fluid communication with the balloon is configured to provide a discrete visual signal that the pressure of a fluid in the balloon is different from a predetermined level of pressure or the volume of the balloon is different from the predetermined fill volume.

The invention discloses a controllable steering method and device for pressure conduction at the head end of a medical nasal feeding catheter, relates to the technical field of nasal feeding catheter control devices, and solves the problem of difficult insertion caused by different synchronization of catheter pushing and catheter bending. According to the invention, when the controller is used for bending and other operations, the guide pipe is driven to carry out adaptive pushing movement, the controller and the pushing assembly are synchronously carried out to ensure that the guide-in depth is stable and rapid, and the mode is convenient to operate, high in practicability and high in practicability. And the controllability is high.

The invention discloses a tracheal intubation unit with a fed medicine check device. The tracheal intubation unit comprises a tracheal catheter, an inflating catheter, a medicine feeding catheter, a connection port, a body entering port and the fed medicine check device, wherein the fed medicine check device comprises a fed medicine check valve joint, a check tube and a check elastic head; the inner diameter of the check tube is larger than the diameter of the medicine feeding catheter, the check elastic head comprises a base, and the diameter of the base is equal to the maximum diameter of the check elastic head, smaller than the diameter of the check tube and larger than the diameter of a round hole in a raised strip. The physical principle of the tracheal intubation unit with the fed medicine check device is that under propulsion of pressure of a water column of a syringe, liquid medicine in the syringe flows into the tracheal catheter through the fed medicine check device. After medicine injection, the check elastic head moves to the raised strip under the action of gravitative pressure of a liquid, the base of the check elastic head is tightly connected with the raised strip, and a sealing structure is formed to intercept liquid backflow.

A separation device having a housing (10) with a feed conduit (1) and a reject conduit (2), between which conduits (1, 2) and an accept conduit (3) of the housing (10) is a rotor unit (13) having a shaft (4) transverse to the through-flow direction of the separation device, which shaft rotates discs (5) attached to the shaft (4), the outer surface and / or side surfaces of which discs are jagged, i.e. they have protrusions (6) and / or notches and / or these surfaces are substantially rough and the teeth (9) of at least two sieves (7, 8) attached to the housing (10), extend between the discs (5), the first sieve (7) being between the reject conduit (2) and the accept conduit (3) and the second sieve (8) being between the feed conduit (1) and the accept conduit (3).

Devices and methods to measure gastric residual volume (GRV) are described where at least one additive component (a GRV indicator) may be dispersed in a body lumen such as a stomach. The GRV indicator may changes a physical (chemical, electrical, thermal, mechanical, optical, etc.) characteristic within the stomach by a measureable degree. This degree of change and / or the rate of return to the previous state, may be used to determine the GRV of a patient. The determined GRV can also be used to automatically or semi-automatically control the patient's feeding rate and / or volume and / or frequency to adequately nourish the patient but avoid complications. The physical characteristic(s) may also be used to detect that the feeding catheter or tube is in the correct location (ie stomach vs lung or esophagus.

Devices and methods to measure gastric residual volume (GRV) are described where at least one additive component (a GRV indicator) may be dispersed in a body lumen such as a stomach. The GRV indicator may changes a physical (chemical, electrical, thermal, mechanical, optical, etc.) characteristic within the stomach by a measureable degree. This degree of change and / or the rate of return to the previous state, may be used to determine the GRV of a patient. The determined GRV can also be used to automatically or semi-automatically control the patient's feeding rate and / or volume and / or frequency to adequately nourish the patient but avoid complications. The physical characteristic(s) may also be used to detect that the feeding catheter or tube is in the correct location (ie stomach vs lung or esophagus.

The invention discloses a feeding assembly for an anti-tube breaking feeder, wherein the feeding assembly includes a feeding container cover, a puncture device assembly and a dropper. The puncture device assembly includes a threaded sleeve and a puncture device. The feeding container cover is provided with a perforation hole matched with the puncture device, the upper end of the puncture device ispenetrated into the perforation hole, the outer side face of the puncture device is in concave-convex clamping with the hole wall of the perforation hole, and the lower end of the puncture device communicates with the dropper. The threaded sleeve is rotatingly kept on the outer side face of the puncture device; the upper end of the threaded sleeve is spirally connected with the feeding containercover, the lower end of the threaded sleeve covers the upper end of the dropper and is connected with the dropper, and the lower end of the dropper is used for connecting a feeding catheter. The feeding assembly has the advantages of simple structure and convenient disassembly of the feeding container, and cannot break the feeding catheter in the operation process of disassembling the feeding container.

The invention discloses an intravascular stent with complex functions. The intravascular stent comprises a stent main body which is mesh-shaped and can be released from and retracted to a feeding catheter, wherein a near end of the stent main body is openly conical, the middle part of the stent main body is circular tube-shaped, and a far end of the stent main body has a closed structure; and the stent main body has a mesh shape which is woven by single wires or a plurality of wires or is engraved by a laser engraving machine. The stent which is taken as an acute thrombus removal system can quickly and efficiently take out thrombi, and can also capture small thrombi which flow toward the far end so as to avoid secondary stroke caused by the thrombus blockage of the far end; the stent which is taken as a temporary stent expands intracranial blood vessels or narrow and blocked blood vessels on other parts of human bodies, plays the effects of dredging and reconstructing blood flow, and can capture small thrombi or emboli; and the stent which is taken as a long-term implanted stent performs adjuvant therapy on arterial aneurysms of furcations, and fills in a market gap. If the position of the stent is not satisfactory, the entire stent can be retracted to the feeding catheter, and is released again. The maneuverability of the stent is high, so the operation difficulty is reduced, and the surgical success rate is greatly improved.

The invention discloses a drug feeding device for an oral laryngeal part, which comprises a drug feeding catheter and a drug storage bottle connected with the drug feeding catheter; the front end of the drug feeding catheter is provided with a drug nozzle, and the outside end of the drug feeding catheter is provided with a piston push rod; the drug nozzle is connected to the inside end of the drug feeding catheter through a rotating shaft and a control hole is arranged in the side wall of the drug feeding catheter; a pull cable is arranged in the control hole, one end of the pull cable is fixed in the middle of the side face of the drug nozzle; a reset spring is arranged between the side face of the drug nozzle and the drug feeding catheter, and the reset spring and the pull cable are arranged on a symmetrical side face of the drug nozzle; the outside end of the drug feeding catheter is provided with a rotary supporting base, and a winding shaft is arranged on the rotary supporting base. The drug feeding device is reasonable in structure setting and convenient to operate; the drug nozzle position is adjusted as required; meanwhile, the drug spraying amount can also be controlled; therefore, the application range is greatly improved, the using stability is good and the practicability is strong.

The invention discloses a welding wire sending guide tube device for a welding robot. The device comprises a guide tube, wherein the guide tube is made from hard plastic ceramic and is provided with an inner hole for a welding wire to pass through; the sidewall of the inner hole is shaped like a segment of recessed arc; the two ends of the inner hole are respectively configured as horn mouth; the inner hole of the guide tube is communicated with a compressed air charging pipe; the outer sidewall of the guide tube is also coated with a magnet; the sidewall of the guide tube is also provided with a through hole; the through hole is positioned at the magnet coated on the outer sidewall of the guide tube. The device disclosed by the invention has the effect of preventing blocking of a wire sending device, effectively protecting the welding wire and realizing self protection.

The invention discloses a ventilation device capable of being used for controlling ventilation support and assisting ventilation support, and in particular a ventilation sleeve element with a percutaneous synchronous esophagus pressurizing function. The ventilation sleeve element with the percutaneous synchronous esophagus pressurizing function comprises a breathing mask, an air supply device, a percutaneous esophagus pressurizing device and an air feeding catheter with a spiral air pocket, wherein the breathing mask is communicated with the air supply device through the air supply tube of the air supply device; the percutaneous esophagus pressurizing device comprises a pressure air pocket and a fixing belt; the pressure air pocket is communicated with the air supply device; the fixing belt is arranged outside the pressure air pocket. According to the ventilation sleeve element with the percutaneous synchronous esophagus pressurizing function disclosed by the invention, the pressure air pocket taking a positive ventilation pressure as a power is added on the basis of a common breathing mask, thus the problem of stomach air-inflation of a patient needing respiration support or assisted respiration during artificial respiration is greatly solved while good ventilation is provided for the patient; airway can be opened better by the air feeding catheter with the spiral air pocket, thus ensuring good ventilation.