82 results about "Cannula device" patented technology

Intravenous cannula devices configured to prevent blood backflow and needle prick injuries include a catheter assembly and a needle guard assembly. The catheter assembly includes a hub having a coaxial recess and a valve member positioned therein. The valve member is cylindrical and includes a distal surface having slits collectively defining prongs configured to open and close upon passage of a needle therethrough. Cannula devices configured to prevent needle stick injuries include a safety release component at a distal end of the needle guard assembly. The safety release component includes moveable locking elements configured to fit within an annular groove defined by a proximal portion of the hub upon movement of a needle through the safety release component. Proximal retraction of the needle through the safety release component causes the moveable locking elements to be displaced from the annular groove, thereby decoupling the catheter assembly from the needle guard assembly.

A cannula device (1) comprises a housing (11), a cannula (10) arranged on the housing (11), and a puncture device (17) which, in a use state, is arranged on the housing (11) and comprises a puncture trocar (18) received in the cannula (10). The puncture trocar (18) is displaceable with respect to the cannula (10) and comprises a trocar tip (180) which, by displacing the puncture trocar (18) with respect to the cannula (10) in a puncturing direction (P), is movable to protrude from the cannula (10) in said puncturing direction (P), wherein the puncture device (17) is removable from the housing (11) in a removal direction (A) opposite the puncturing direction (P). A protection element (15) is received in the housing (11) and comprises a connection portion (150) arranged on the puncture trocar (18) and at least one shielding leg (152, 153) pivotably connected to the connection portion (150), wherein the puncture trocar (18) is configured to carry the protection element (15) along when the puncture trocar (18) is removed from the housing (11) in said removal direction (A), the at least one shielding leg (152, 153) being configured to be pivotably moved with respect to the connection portion (150) to approach the trocar tip (180) when the protection element (15) is carried along by the puncture trocar (18).

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal wall puncture stitching instrument with a guide hole device. Comprising a puncture cannula device, a guide hole device, a puncture cone device and a threading hook, the puncture cannula device comprises a puncture cannula seat, a gas injection valve, a gas injection switch, a gas blocking valve, a rotary switch, a spring, a puncture cannula seat sealing cover, a lower sealing cover, a blocking piece fixing ring, a blocking piece, an upper pressing plate, an elastic sealing cap inner ring, a lower pressing plate, a self-debugging sealing cap and a positioning guide cover. The guide hole devices are arranged on the two sides of the puncture cannula device and symmetrically distributed with respect to the center line of the puncture cannula device, and each guide hole device is provided with a left guide hole, a right guide hole, a guide hole upper inlet and an auxiliary fixing hole. The puncture cone device comprises a puncture cone, a release switch, a puncture cone seat, a pressing key, a puncture cone guide hole I and a puncture cone guide hole II; the threading hook comprises a handle, a push handle reset spring, a push handle, a handle cover, a line pulling hook, a sleeve, a needle head tube and a suture line clamp.

The utility model relates to the technical field of tracheostomy cannulas, in particular to a tracheostomy cannula device integrating sputum suction and atomization functions, which comprises a positioning cannula shield, a tracheostomy cannula body, a sputum suction tube, an atomization humidification tube and an atomization component, the tracheostomy cannula body is connected with the positioning cannula shield, the atomization humidification tube is arranged on the inner wall of the sputum suction tube, and the atomization component is arranged on the inner wall of the sputum suction tube. One end of the atomizing and humidifying pipe penetrates out of one side of the sputum suction pipe and then is connected with the output end of the atomizing assembly, one end of the atomizing and humidifying pipe is located on the outer side of the positioning sleeve protective cover, the sputum suction pipe movably penetrates through the positioning sleeve protective cover, one end of the sputum suction pipe is located on the outer side of the positioning sleeve protective cover, and one end of the sputum suction pipe is connected with a negative pressure connector. The other end of the sputum suction pipe is located on the inner side of the positioning sleeve protective cover, the other end of the atomization humidification pipe extends out of an outlet in the other end of the sputum suction pipe, a one-way valve is arranged at an outlet in the other end of the atomization humidification pipe, and a limiting piece is arranged on the peripheral wall of the sputum suction pipe and used for abutting against the outer side of the positioning sleeve protective cover.

The invention discloses a telescopic visual trachea cannula device for difficult airways, comprising: a cannula assembly, the cannula assembly comprising a cannula main body, the outer side of the insertion end of the cannula main body being provided with a balloon; the inner wall of the cannula body is fixedly connected with a fixing block, and the middle of the fixing block is fixedly connected with a camera assembly. The insertion guide plate group is arranged at one end, far away from the insertion end of the intubation main body, of the outer side of the intubation assembly; and the insertion limiting assembly is arranged in the middle of the insertion guide plate group. According to the telescopic visual tracheal intubation device for the difficult airway, through the structural matching design of the insertion guide plate set and the insertion limiting assembly, the intubation assembly can be telescopically adjusted according to the use requirement, and therefore the insertion depth of the intubation assembly can be adjusted according to the requirement; and image information can be provided through the camera assembly, so that the insertion of the cannula assembly is visualized, and the insertion of the cannula assembly is more convenient and faster.

A nasal cannula is described herein for respiratory therapy which includes a first gas supply tub with a distal end terminating in a first connector, and a nasal cannula body which includes a first end rotatably coupled to the first connector, a second end opposite the first end, a longitudinal axis extending from the first end to the second end, and a first nasal prong in fluid communication with the first gas supply tube. The first nasal prong is rotatable relative to the first gas supply tube about the longitudinal axis of the nasal cannula body.

The utility model relates to the technical field of medical surgical instruments, and discloses a locking piece type laparoscope cannula device which comprises a laparoscope sheath tube, a fixing seat and a locking mechanism. A through hole is formed in the fixing base in the axial direction, and one end of the endoscope sheath tube is connected to one end of the fixing base and is communicated with the through hole in an aligned mode. The locking mechanism is arranged at the other end of the fixing base and comprises a shell and a locking assembly, a containing cavity is formed in the shell, a mounting hole is formed in the shell, the locking assembly comprises a plurality of locking blocks annularly arranged in the containing cavity in the circumferential direction of the mounting hole, and a locking hole is formed among the locking blocks; the laparoscope sequentially penetrates through the mounting hole, the lock hole and the through hole and then is sleeved with the laparoscope sheath tube, the multiple lock blocks can be close to or away from one another, so that the lock hole becomes larger or smaller, and the laparoscope is clamped or loosened by the multiple lock blocks. The technical problem that in the prior art, a laparoscope cannula is poor in universality is solved, the service life of a laparoscope can be prolonged, and the assembling efficiency is high.

Cannula devices can be used for withdrawing venous blood from a patient and returning arterial blood to the patient after extracorporeal oxygenation. For example, this document describes dual lumen cannula devices and methods for their use with systems such as extracorporeal membrane oxygenation (ECMO) systems. The technology described herein includes a cannula device, and a methodology utilizing the cannula device, to provide complete hemodynamic support incorporating both venous drainage cannula and arterial return cannula in a single cannula device.

The utility model discloses a variable-diameter expansion puncture cannula device, which belongs to the technical field of medical equipment and comprises an air closed valve cover, an expansion variable-diameter main body, an inner fixing support, a variable-diameter support and a variable-diameter rubber sleeve. The inner fixing support and the bottom wall of the expansion variable-diameter body sequentially penetrate to form a through hole, and a plurality of grooves are formed in the bottom wall of the inner fixing support in the circumferential direction. The variable-diameter support is defined by a plurality of variable-diameter pieces, and each variable-diameter piece comprises a fixing part and an expanding part. And after one end of the reducing rubber sleeve is fixed in the expansion reducing main body, the other end of the reducing rubber sleeve extends out of the expansion reducing main body from the through hole and covers the peripheries of the expansion parts. The expansion part of the puncture cannula device is composed of a plurality of variable-diameter pieces and a variable-diameter rubber sleeve wrapping the variable-diameter support. Due to the fact that the variable-diameter support and the variable-diameter rubber sleeve are arranged in a split mode, the puncture cannula can play a rigid role of the variable-diameter support and a flexible role of the variable-diameter rubber sleeve at the same time, and the application range of the puncture cannula device is enlarged.

1. The name of the product of this design: Duodenal jejunal internal cannula device. 2. Purpose of the product of this design: used for the insertion and removal of medical products in the digestive tract. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design. 6. The product of this design is a slender object, and its length is omitted.

The invention provides a material guiding device, pipe inserting equipment and an air conditioner, the material guiding device is used for the air conditioner, the air conditioner comprises a to-be-inserted pipe, the to-be-inserted pipe comprises a pipe body and at least two connecting pieces, the pipe body comprises at least two pipe supporting legs, the at least two connecting pieces are arranged on the at least two pipe supporting legs in a sleeving mode respectively, and the material guiding device comprises a base, the base is provided with a material guiding channel and a material guiding opening which are communicated with each other, and the at least two pipe supporting legs extend into the material guiding channel through the material guiding opening; the limiting surface is arranged on the base and located at the material guiding opening, and based on the fact that the at least two connecting pieces make contact with the limiting surface and the distance exists between the at least two pipe supporting legs and the bottom wall of the material guiding channel, whether the connecting pieces are not arranged on the to-be-inserted pipe or not can be indirectly detected, and the problem that the incoming material state cannot be effectively recognized through manual pipe insertion is solved; and the quality control effect is improved, and the automatic production requirement can be met.

Cannula devices can be used for withdrawing venous blood from a patient and returning arterial blood to the patient after extracorporeal oxygenation. For example, this document describes dual lumen cannula devices and methods for their use with systems such as extracorporeal membrane oxygenation (ECMO) systems. The technology described herein includes a cannula device, and a methodology utilizing the cannula device, to provide complete hemodynamic support incorporating both venous drainage cannula and arterial return cannula in a single cannula device.

Systems and methods for minimally invasive computer-assisted telesurgery are described. For example, this disclosure describes cannula devices for use with computer-assisted teleoperated surgery systems. The cannula devices can facilitate enlargement of a minimally invasive surgical workspace by creating a tissue tent. The devices and methods described herein can be used in conjunction with computer-assisted teleoperated surgery systems that use either hardware-constrained remote centers of motion or software-constrained remote centers of motion.

The invention provides a trachea cannula device with a droplet pollution prevention structure, and relates to the technical field of medical instruments. The end part of the air guide cannula is connected with an air guide connector, and the air guide connector is connected with a breathing machine; a protective plug is connected to the interior of the air guide connector, the interior of the protective plug is in a communicated state, the protective plug is sleeved with a movable limiting sleeve, and the movable limiting sleeve makes contact with the air guide connector; and the outer part of the movable limiting sleeve is connected with a protective loop. The air valve is utilized to inflate the inside of the inflatable ring, the inflatable ring opens the foam blocking film, the foam blocking film is used for blocking droplets generated by cough of the mouth of a patient, and air pollution caused by viruses carried in the droplets is avoided. The trachea cannula solves the problems that when an existing trachea cannula is used for cannula operation, the trachea cannula can continuously stimulate the throat wall and the glottis part, part of patients may cough, droplets generated by cough drift into the air, and air pollution is caused.

Devices and methods for providing respiratory therapy are disclosed. One device includes a first lumen, a second lumen, and a bridge with at least one opening. The first lumen has a first inlet end to receive a first flow of breathing gas, a first outlet end to deliver the first flow, and a first bend between the first inlet end and the first outlet end. The second lumen has a second inlet end to receive a second flow of breathing gas, a second outlet end to deliver the second flow, and a second bend between the second inlet end and the second outlet end. The bridge separates the first lumen and the second lumen, attaches to the first lumen at the first bend and the second lumen at the second bend, and is configured to maintain the first flow of breathing gas separate from the second flow of breathing gas.

The invention discloses a kirschner wire sleeve device for muscle layer expansion, which relates to the technical field of orthopedic surgery and comprises a kirschner wire, an expansion sleeve, a protective layer and a traction rod. The expansion sleeve is composed of a support and an expansion layer, a guide ring is arranged in the middle of the support, symmetrical connecting frames are arranged on the outer side of the guide ring, the expansion layer is sleeved outside the guide ring, and one end close to a skeleton is of an involute pipeline structure. After the Kirschner wire fixes the bone, the guide ring slides towards the bone along the Kirschner wire, the involute pipeline structure of the expansion layer enters the space between the Kirschner wire and the muscle layer, and the muscle layer is pushed away outwards to form an operation space. The protective layer can reduce direct friction between the muscle layer and the expansion layer, and the lubricant arranged in the protective layer can assist operation; the traction rod can stably control the expansion layer to be opened. The device is made of a biocompatible material and is provided with a buffer structure, the operation space can be flexibly adjusted, the operation safety, adaptability and efficiency are effectively improved, and the use pain point of a traditional kirschner wire sleeve device is solved.

Provided are kyphoplasty cannula devices and device systems that include an outer sheath including a main body defining a through-opening extending therethrough, and an outer sheath handle above the main body, the outer sheath handle having a handle opening through at least one end thereof, the outer sheath handle also having a top opening that is contiguous with the through-opening of the main body; and an inner stylet configured to be insertable into the top opening of the outer sheath handle and into the through-opening of the main body. The present systems may also include a plug to plug the top opening after removal of the inner stylet. Also provided are kits and methods of using the present devices and sytems.

A uniquely structured cannula and an instrument to efficiently and effectively deploy and remove the cannula is provided. In particular, the present disclosure is directed to inventive cannula device embodiments structured and / or configured to have a working portal (for delivery of biologics or use by other surgical devices), and a method to easily deploy and remove the cannula while reducing the area of the surgical site required for insertion therein.

The present invention relates to a cannula device for integrated detection of esophageal reflux and vomiting reflex and an application method, including a cannula, and a ring-shaped detection head is provided at the front end of the cannula; a plurality of petal-shaped airbags are distributed on the outer surface of the detection head, and the plurality of airbags are communicated through an air duct, and the other end of the air duct extends outside the cannula; the device further includes an inflation / deflation unit and a barometric pressure sensor; an annular liquid accumulation groove is provided on the inner wall of the detection head, a circular ring-shaped slide rail is provided on the inner wall of the liquid accumulation groove, and a PH detection probe is slidably arranged on the slide rail; a plurality of liquid outlet holes are provided on the outer surface of the detection head, one or more liquid outlet holes are provided in the middle gap between adjacent airbags, and the liquid outlet holes are closed when the airbags are inflated; by applying the method of the present application, reliable monitoring results of vomiting reflex actions and monitoring results of esophageal reflux can be provided for medical staff, so that a reaction can be made immediately when there is a risk of aspiration, providing guarantee for the personal safety of patients.

A radially expandable trocar, port or cannula system is provided for use in minimally invasive surgeries. The cannula creates a port access with an initial small internal diameter. The passage of the cannula devices is defined by a plurality of elongate rigid members. A number of mechanisms are provided for expanding the passage of the cannula devices, by moving the plurality of elongate rigid members towards a larger radial location, thereby creating a larger internal diameter for the port. The elongate rigid members can be prevented from unintended movement when the system is at the un-expanded state, during expansion and when it is expanded to the desired larger diameter. Exemplary embodiments include methods of preventing gas loss from the tissue that would occur through the gaps created during expansion.

The invention relates to the technical field of biopsy equipment, and provides a coaxial puncture cannula device, a biopsy needle suite and a using method.The coaxial puncture cannula device is used for being connected with a biopsy needle and comprises a puncture tube body, a liquid injection tube, a liquid outlet tube, a liquid outlet tube, a liquid outlet tube and a liquid outlet tube, and the puncture tube body is provided with a puncture channel; the handle connecting part is arranged on the puncture tube body; the pressing part is connected with the handle connecting part; the liquid injection part is arranged on the pressure applying side of the pressure applying part, and the liquid injection part is used for containing hemostatic; the handle connecting part is used for connecting a handle of the biopsy needle and has a push-in state and a pull-out state; in the push-in state, the handle connecting part pushes the biopsy needle to be inserted into the puncture channel, and the hemostatic in the liquid injection part is not pushed out; and in the pulling-out state, the handle connecting part pulls the biopsy needle out of the puncture channel and drives the pressure applying part to perform transmission so as to push out the hemostatic in the liquid injection part. The problems that in the prior art, the hemostasis operation is long and the hemostasis effect is not ideal due to pressing operation of manual hemostasis are solved.

This invention discloses a transplantation cannula device and its method of use for precisely controlling the aspiration dosage of culture medium. It includes a syringe, a push-pull component, a three-way valve, a rigid tubing, and a flexible tubing. The push-pull component is slidably connected to the inner wall of the syringe. An aspiration head is located at the head of the syringe, and a syringe handle is located on the opposite side of the tail end. Five axially arranged annular limiting grooves are formed on the inner wall of the syringe. The push-pull component includes a rubber piston, an elastic positioning component, and a push-pull handle connected sequentially along the axial direction. The elastic positioning component has a radial elastic direction, and its radial outer end is used to engage with the annular limiting grooves. The aspiration head is detachably connected to one port of the three-way valve, and the other port of the three-way valve is detachably connected to the injection channel. The other port of the three-way valve is detachably connected to the aspiration tubing. This facilitates the sequential introduction of culture medium, air, a mixture of culture medium and embryo, air, and culture medium into the syringe via the aspiration tubing.

The utility model discloses a device for fixing an anti-prolapse tracheotomy cannula. The device comprises a main body and two fixing belts, the main body is provided with a framework formed by two fixing rods which are arranged in a crossed mode in the diagonal direction of the main body, a tracheostomy tube sleeve is arranged at the crossed position of the two fixing rods, and the two ends of the two fixing belts are fixed to the two ends of the same diagonal line of the framework respectively. The tracheostomy tube has the advantages of effectively reducing the probability that the tracheostomy tube falls off and pressure sores appear at the tracheostomy position of a patient.

The invention relates to the technical field of tracheal intubation, in particular to a bedside ultrasonic laryngeal edema and aspiration prevention tracheal intubation device which comprises an intubation component, the lower end of the intubation component is connected with an intubation head component, and a visual laryngoscope and a plurality of miniature ultrasonic probes are mounted on the intubation head component. According to the application, medicines such as glucocorticoid in the medicine temporary storage bin can be accurately atomized and conveyed to the periphery of the glottis under the action of the micro piezoelectric atomization piece, continuous low-negative-pressure suction can be performed on the upper gap of the glottis through the micro diaphragm pump according to feedback of the pressure sensing assembly, retentate on a capsule is effectively removed, and aspiration and related pneumonia are prevented; by means of fusion of ultrasonic image features and multi-sensor data, the risk of laryngeal edema can be intelligently judged, starting and stopping of atomization drug delivery and negative pressure suction of the miniature diaphragm pump are automatically controlled in a linkage mode, full-process closed-loop management from intubation positioning, intraoperative protection to intervention before tube drawing is achieved, and the risk of complications related to tracheal intubation is remarkably reduced.

The utility model provides a movable trachea cannula device. The movable trachea cannula device comprises a fixing mechanism and a wearing mechanism. The fixing mechanism comprises a catheter fixator, a centralizing sleeve and a silicon rubber sleeve, the centralizing sleeve and the silicon rubber sleeve are both installed in the catheter fixator in a sliding mode, and first sliding grooves are symmetrically formed in one side of the catheter fixator; the wearing mechanism comprises a face fixator and a fixing frame, the fixing frame is arranged on one side of the face fixator, and a strip-shaped groove is integrally formed in the fixing frame; the first sliding block slides in the first sliding groove, so that the first sliding block drives the centralizing sleeve and the silicon rubber sleeve to move respectively, the centralizing sleeve and the silicon rubber sleeve can be conveniently moved out of the catheter fixator when needed, and therefore the contact area of the catheter fixator and a trachea cannula is increased; the trachea cannula in the catheter fixator is centralized through the centralizing sleeve and the silicon rubber sleeve, so that the trachea cannula is prevented from shaking due to accidental collision or pulling, and the trachea cannula is more stable.

The invention discloses a negative pressure sleeve device, which comprises a film fixing mechanism, a sealing chamber, a pressure gauge, a sensor, a high-performance vacuum pump, a pedal and a power supply, and relates to the technical field of negative pressure fixing sleeves, a high-molecular plastic film coated on the outer layer of a metal pipe enables the metal pipe to enter a human body more smoothly, and the harm is effectively avoided; the device can remarkably improve the detection and inspection effect, and can better assist in detection and improve accuracy and intuition compared with a traditional catheter; the sleeve part is excellent in performance, has high tensile strength and yield strength, and is oil-resistant, wear-resistant and aging-resistant; the clamping part is reasonable in design, convenient to operate and firm in structure, and an embedded structure and an elastic sheet are adopted, so that a sleeve is convenient to insert.

The invention discloses an adjustable airbag pressure measuring and controlling trachea cannula device which comprises a trachea cannula, the trachea cannula is sleeved with an airbag mounting sleeve, an auxiliary annular airbag is arranged on the inner wall of the airbag mounting sleeve and connected with the outer wall of the trachea cannula, the auxiliary annular airbag is connected with a first air delivery pipe, and the first air delivery pipe is connected with a console through a first connector. An air supply assembly is arranged in the console and connected with the first connector, a main air bag is arranged on the air bag installation sleeve and connected with a second air conveying pipe, and the second air conveying pipe is connected with an air conveying control assembly through a second connector. The air bag mounting sleeve is arranged to be matched with the auxiliary annular air bag, the air supply assembly works to conveniently adjust the working position of the main air bag on the trachea cannula, the required working position of the main air bag can be adjusted according to the requirement of a patient, and the clinical requirement is met; meanwhile, the main air bag, the air delivery pipe, the air delivery control assembly and the console are arranged, real-time pressure measurement monitoring and pressure control of the main air bag are facilitated, frequent manual inflation is not needed, and time and labor are saved.

The utility model is applicable to the field of medical supplies, and discloses a tracheostomy cannula device capable of preventing pressure injury and extubation, which comprises a tracheostomy cannula and a tracheostomy lacing. Perforated holes are formed in the left side and the right side of the tracheostomy sleeve respectively, the tracheostomy tying belt is a flexible waterproof belt, the middle section of the tracheostomy tying belt is an abutting part, one end of the tracheostomy tying belt is a first contact part, the other end of the tracheostomy tying belt is a second contact part, and a clamping groove with an outward opening is formed in the abutting part of the tracheostomy tying belt. When the tracheostomy tube is fixed, the tracheostomy tube is placed into the trachea, the first contact part and the second contact part penetrate through the penetrating holes respectively and are turned over outwards again, then the first contact part and the second contact part move towards the abutting part and are finally connected and fixed in the clamping groove, and therefore the tracheostomy tube is completely fixed. By means of the structure, the tracheostomy cannula can be fixed to the trachea of a patient, the tracheostomy tying belt is fixed to the rear portion of the neck of the patient, the whole process is easy to operate and firm in installation, liquid cannot be infiltrated, and soft materials protect the skin.

A radially expandable trocar, port or cannula system is provided for use in minimally invasive surgeries. The cannula creates a port access with an initial small internal diameter. The passage of the cannula devices is defined by a plurality of elongate rigid members. A number of mechanisms are provided for expanding the passage of the cannula devices, by moving the plurality of elongate rigid members towards a larger radial location, thereby creating a larger internal diameter for the port. The elongate rigid members can be prevented from unintended movement when the system is at the un-expanded state, during expansion and when it is expanded to the desired larger diameter. Example embodiments include methods of preventing gas loss from the tissue that would occur through the gaps created during expansion.

The utility model discloses a variable diameter expansion puncture sleeve device relates to medical instrument technical field, including air closing valve cover, the inner wall fixed mounting of spacing frame has fixed part limit component, the inner wall bottom fixed mounting of variable diameter fixed box has variable diameter part support seal component. The utility model discloses a variable diameter expansion puncture sleeve device, its by four variable diameter extension board composition's passage can make variable diameter expansion function by fixed part limit component, can adapt to a variety of different size's puncture needle. Through variable diameter part support seal component can utilize the pressure extrusion rubber sleeve of pressing plate and clamping frame, make rubber sleeve adhere to the bottom of four variable diameter extension board of support seat, not only can play the sealing effect, and play the support effect to four variable diameter extension board's expansion. And, when device production and processing, can first fix rubber sleeve in through -hole, then fix spacing frame and four variable diameter extension board, convenient to assemble, simple structure.