41 results about "Cannula insertion" patented technology

A modular disease management system may provide medication management for a patient. The system may include a base configured to at least partially couple to a tissue site of a patient. The system may further include a medication bladder coupled to the base and configured to maintain medication. The system may further include a medication pump coupled to the medication bladder, comprising a conduit and muscle wire-actuated plungers, wherein the medication pump is configured to cause the medication to flow from the medication bladder through the conduit. The system may further include a cannula insertion device coupled to the medication pump via the conduit, wherein the cannula insertion device comprises a cannula, a spring, and a triggering component, wherein the cannula insertion device is configured to insert the cannula into the tissue site of the patient by actuation of the spring released by the triggering component.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

A cannula insertion system for cannulating a blood vessel includes a cannula system having a cannula that defines a cannula lumen and has a distal and proximal end. The system includes a cannula insertion device for coupling with the system that includes a dilator having a dilator body and a dilator lumen; a needle having a needle body and a needle lumen, the needle being translatable within the dilator lumen along a first direction; a movable dilator actuator configured to cause the dilator to move along the first direction; a movable needle actuator configured to cause movement of the needle along the first direction; and a housing defining housing recess. The housing recess is configured to receive the cannula system, the dilator, and the needle. The needle and the dilator are configured to be moved within the cannula lumen along the first direction.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

A modular disease management system may provide medication management for a patient. The system may include a base configured to at least partially couple to a tissue site of a patient. The system may further include a medication bladder coupled to the base and configured to maintain medication. The system may further include a medication pump coupled to the medication bladder, comprising a conduit and muscle wire-actuated plungers, wherein the medication pump is configured to cause the medication to flow from the medication bladder through the conduit. The system may further include a cannula insertion device coupled to the medication pump via the conduit, wherein the cannula insertion device comprises a cannula, a spring, and a triggering component, wherein the cannula insertion device is configured to insert the cannula into the tissue site of the patient by actuation of the spring released by the triggering component.

According to an aspect, a cannula insertion mechanism includes a seal and a cannula carrier. The seal is configured to surround an opening of a housing, the seal including a first seal surface and a second seal surface, the first seal surface facing toward the opening, and the second seal surface facing away from the opening. The cannula carrier is configured to drive a cannula in a first direction through the opening of the housing, the cannula carrier having a first carrier surface and a second carrier surface, the first carrier surface being configured to exert a compression force on the second seal surface when the cannula carrier drives the cannula in the first direction, thereby causing the first seal surface to expand in a second direction to engage the second carrier surface via a clamping force.

A system, components, and method are provided for delivering one or more cannula insertion needles into a blood vessel. The system, components, and method use a needle delivery device coupled to one or more ultrasonic sensors to control the delivery of the cannula insertion needles.

To provide an excellent apparatus.SOLUTION: There is provided an apparatus for guiding cannulation with a dialysis needle of an arteriovenous dialysis access graft subcutaneously implanted in a body of a subject. The guiding apparatus comprises an elongated body member comprising a base portion terminating in longitudinal edges, a distance between the longitudinal edges of the base portion being substantially equal to a lateral dimension of the aces graft, and an elongated tubular sleeve defining a pocket having a longitudinal dimension and a lateral dimension configured to receive the body member. The body member is adapted to be received in the pocket of the sleeve for securing adjacent the subcutaneous access graft such that the inner surface of the base portion is aligned with a cannulation point of the graft for guiding location of a needle insertion.SELECTED DRAWING: Figure 1

The disclosure provides a cannula insertion system to insert a cannula into a blood vessel of a patient, comprising: a cannula insertion device configured to insert the cannula into the patient, a cannula insertion device positioning system to position the cannula insertion device with respect to the patient, and a control device arranged to control the positioning system to position the cannula insertion device in a suitable position to insert the cannula into patient, wherein the cannula insertion system is configured to carry out a blood drawing step, wherein the cannula insertion system comprises a blood flow rate sensor device arranged to determine a blood flow rate of blood being drawn from the patient during the blood drawing step, and wherein the control device is configured to control the cannula insertion device positioning system and / or the cannula insertion device and / or a blood collection system and / or an ultrasound transducer positioning system in dependence on the determined blood flow rate of blood being drawn from the patient.

Embodiments disclosed herein are directed to an applicator for inserting a cannula into a body of the user for delivering medication from a medication infusion device to the user. Features of the applicator device provide a more reliable, secure and safe insertion process.

Disclosed is a medical thread for cannula insertion including: a thorn area portion arranged at a central area in a lengthwise direction and formed on a surface thereof with a thorn; a first non-thorn area portion extending from an one end in a lengthwise direction of the thorn area portion and excluding a thorn formed on a surface thereof; and a second non-thorn area portion extending from an opposite end in the lengthwise direction of the thorn area portion and excluding a thorn formed on a surface thereof.

An arm cannula retention apparatus is disclosed comprising a rigid support member configured to engage against a limb and retention strapping for securing the support member to the limb. A rigid protective shield is mounted relative to the rigid support member by releasable strapping and is shorter in longitudinal extent than the rigid support member. The rigid protective shield overlies a catheter of an arm cannula without contacting the catheter and is arranged to avoid obstruction of the retention strapping. The releasable strapping is independently releasable to allow access to the catheter while the rigid support member remains secured to the limb. The apparatus may be configured for use on a hand or across a joint such as an elbow, providing limb stabilisation and localised protection of the cannula insertion site.

Plaster for fixing cannulas with a carrier arrangement (10) that can be fixed to the skin surrounding the cannula insertion site by means of an adhesive surface and a barrier layer (100) arranged on the side of the carrier arrangement (10) facing away from the adhesive surface, which inhibits the migration of bacteria and covers the cannula insertion site, characterized in that the carrier arrangement (10) has a receptacle (20) that penetrates the carrier arrangement (10) and is covered by the barrier layer (100) and designed to receive a ridge-shaped grasping aid for the cannula, wherein the receptacle (20) is designed as a generally approximately straight receiving slot (20), and wherein the receptacle (20) is suitable for absorbing tensile forces acting on the cannula and transmitting them to the adhesive surface.

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.

A method for dispensing a bone reinforcement composition into an intervertebral spacer and at least one adjacent vertebra can help retain the implant in situ. A cannula guide is inserted into a first vertebra guided by a live imaging system. A curved directional composition delivery cannula is inserted through a tubular body of the guide; then positioning the delivery cannula along a desired path, positioning an end using a curved end as a steering mechanism. The delivery cannula passes through a first vertebra, into the intervertebral spacer, and optionally into a second vertebra. A volume of reinforcement composition is dispensed using cyclical steps incrementally withdrawing the delivery cannula and dispensing of the reinforcement composition until the desired path is filled with reinforcement composition stabilizing the respective vertebrae and / or interbody devices relative to each other. In an alternate arrangement, the cannula is inserted through a guide integrated into the intervertebral spacer.

In some embodiments, a prostrate face pillow may include a body having a top surface, a bottom surface, a right side surface, a left side surface, and an interior cavity open at the top and bottom surfaces. In addition, the prostrate face pillow may include a right intubation channel having a non-horizontal passage and a left intubation channel having a non-horizontal passage. Further, the prostrate face pillow may include a right side slit and a left side slit, each slit configured to allow insertion of a cannula into the left channel. In addition, the prostrate face pillow may include a right-side perforated pattern and a left-side perforated pattern, where the right-side perforated pattern or the left-side perforated pattern must be destroyed prior to insertion of the cannulas.

Infusion devices are disclosed herein. The technology of the invention includes, for example, infusion devices for delivering a medicament to a user's body. The device can include an insertion assembly including a cannula, a reservoir assembly including a reservoir configured to hold a medicament, and a trigger assembly configured to trigger insertion of the cannula into the user in response to a command from a remote computing device communicatively coupled to the infusion device.

This invention relates to a protective sleeve and a visual cannula insertion device. The protective sleeve includes: a first sleeve, which is tubular and has a channel and an insertion hole communicating with the channel. The channel is used for inserting the cannula assembly, and a lubricating medium layer is provided on the inner wall of the channel along the length of the first sleeve; and a second sleeve, which is transparent and located on the side of the first sleeve away from the insertion hole. The second sleeve has a receiving cavity communicating with the channel for receiving the probe of the cannula assembly. The protective sleeve of this application can wrap around the cannula assembly to provide protection, ensuring that the cannula body and probe are not contaminated by bacteria or viruses in the airway. Simultaneously, the lubricating medium layer within the first sleeve greatly facilitates the insertion and removal of the cannula assembly. Furthermore, the protective sleeve can be disposable and can be directly removed and disposed of as waste after surgery, thereby reducing the cleaning and disinfection work required for the cannula assembly.

A method for dispensing a bone reinforcement composition into an intervertebral spacer and at least one adjacent vertebra can help retain the implant in situ. A cannula guide is inserted into a first vertebra guided by a live imaging system. A curved directional composition delivery cannula is inserted through a tubular body of the guide; then positioning the delivery cannula along a desired path, positioning an end using a curved end as a steering mechanism. The delivery cannula passes through a first vertebra, into the intervertebral spacer, and optionally into a second vertebra. A volume of reinforcement composition is dispensed using cyclical steps of incrementally withdrawing the delivery cannula and dispensing of the reinforcement composition until the path is filled with reinforcement composition stabilizing the respective vertebrae and / or interbody devices relative to each other. In an alternate arrangement, the cannula is inserted through a guide integrated into the spacer.

An arm cannula retention apparatus is disclosed comprising a rigid support member configured to engage against a limb and retention strapping for securing the support member to the limb. A rigid protective shield is mounted relative to the rigid support member by releasable strapping and is shorter in longitudinal extent than the rigid support member. The rigid protective shield overlies a catheter of an arm cannula without contacting the catheter and is arranged to avoid obstruction of the retention strapping. The releasable strapping is independently releasable to allow access to the catheter while the rigid support member remains secured to the limb. The apparatus may be configured for use on a hand or across a joint such as an elbow, providing limb stabilisation and localised protection of the cannula insertion site.

A medical insertion mechanism is provided and includes a base, a needle holder slidably disposed on the base, a needle disposed on the needle holder, a cannula holder arranged at a position corresponding to the needle holder, a cannula disposed on the cannula holder, a pivoting assembly pivotally disposed on the base, a lever movably disposed on the base and movably engaged with the pivoting assembly, an actuator disposed on the base, and a driving component for driving the pivoting assembly to pivot when the actuator slides to disengage from the pivoting assembly. When the pivoting assembly pivots, the lever drives the needle holder to slide along an insertion direction and then along a retraction direction, so as to insert the cannula into the patient's body. Besides, a medical device having the aforementioned medical insertion mechanism is also provided.

An introducer assembly is provided that can install a drain as an outpatient procedure and corresponding method. The assembly includes an elongate introducer having a distal end with a blunt tip and an opposite proximal end enabling user manipulation. The elongate introducer includes a stylet and a sleeve, one of which forms the blunt tip. The sleeve has a canular wall defining a hollow interior and a stylet access opening therethrough at the sleeve proximal end region. The stylet is arranged as a sleeve insert having a handle laterally extending through the stylet access opening while within the sleeve, which can be slidably withdrawn from the sleeve at the distal end region while remaining portions of the elongate introducer are within a wound to be drained. The elongate introducer can include an embedded scalpel blade and retractable sheath for cutting wound entry and exit incisions when installing a drain.

Disclosed herein is a surgical cannula configured as an instrument retaining or centering apparatus, configured for providing insufflation gases to a surgical cavity of a patient (such as the pneumoperitoneum) and allowing insertion of medical instruments into the surgical cavity through the cannula. The cannula can include features to direct gas flow in particular directions to prevent or reduce smoke, fog / condensation, or other unwanted media from contacting a portion of a medical instrument.

The utility model relates to the technical field of biopsy sampling, and provides an intervertebral foramen puncture lumbar intervertebral space biopsy sampling device which comprises a puncture needle, the outer side wall of the puncture needle is sleeved with a puncture cannula, the outer side of the top of the puncture cannula is in threaded connection with a first handle, and the top of the first handle is provided with a connecting sleeve; a trephine pipe is further installed on the inner side of the connecting sleeve, a second handle is installed on the top of the trephine pipe, the trephine pipe penetrates into the puncture cannula to be used for biopsy sampling, and scales are arranged on the outer side wall of the puncture needle and used for observing the insertion depth; through the arrangement of scales on the outer side of the puncture needle, a doctor can conveniently manage the insertion depth and position, follow-up sampling is facilitated, and through the arrangement of the puncture needle, the guiding effect can be achieved, and follow-up puncture cannula insertion and trephine tube sampling are facilitated.

A cannula insertion system includes a disposable part (and, optionally, a site base releasably connectable to the disposable part), and a reusable part. The disposable part includes a needle hub that is moveable in a needle carriage by a needle retraction spring from an insertion position in which the needle protrudes through the needle carriage to insert a cannula, to a retraction position in which the needle is fully retracted into in the needle carriage after having deployed the cannula. The reusable part includes a housing to releasably engage with the disposable part, a spring to insert the needle, an actuation cap for triggering the deployment of the cannula, and a safety member enabling a user to select a first option in which the cannula insertion system is "unlocked" and ready for cannula deployment, or a second option in which the cannula insertion system is "locked" to prevent cannula deployment.

The invention discloses a double-channel endoscope working cannula, and belongs to the technical field of endoscopic surgery, the double-channel endoscope working cannula comprises an arc-shaped frame, and the arc-shaped frame is slidably connected with two moving mechanisms; adjusting mechanisms are mounted at the front ends of the two moving mechanisms, and fixing mechanisms are mounted on the two adjusting mechanisms; and a main sleeve and an auxiliary sleeve are respectively arranged in the two fixing mechanisms. By designing the arc-shaped frame and the moving mechanism, the device can slide at will, rapid limiting and clamping are achieved, the distance between the main sleeve and the auxiliary sleeve can be accurately adjusted, a doctor can conveniently conduct surgical operation, meanwhile, follow-up endoscopes and surgical instruments can be conveniently and accurately inserted into the body of a patient, the surgical effect is improved, and the working efficiency is improved. Meanwhile, the angles of the main sleeve and the auxiliary sleeve inserted into the body of the patient are adjusted according to specific requirements, subsequent surgical treatment of the patient by a doctor is facilitated, and the surgical efficiency is greatly improved.

Embodiments disclosed herein are directed to an applicator for inserting a cannula into a body of the user for delivering medication from a medication infusion device to the user. According to one aspect, an applicator device includes a cannula and an insertion needle configured to insert the cannula into a body of a user. The applicator can include features that control the geometry of the skin during insertion of the cannula to provide a more reliable depth and insertion angle for the cannula.

A cannula insertion system includes: a contact sensor positioning system arranged to determine a suitable location for insertion of the cannula, where the contact sensor positioning system includes: a contact sensor having a contact surface to be placed at least partially on the human or animal body to enable measurement with the contact sensor, a positioning device configured to support and position the contact sensor, and a control device arranged to control the positioning device to position the contact sensor in a desired position. The contact sensor positioning system includes one or more sensors to determine a position and / or contact force related parameter representative for a position and / or contact force of the contact sensor, and a processing device to process the position and / or contact force related parameter and to provide a position control signal to the control device, where the contact sensor is an imaging sensor.

A surgical system for preparing the sacroiliac (SI) joint for a fusion, comprising a sliding joint finder and a working cannula. The working cannula comprises a body having a central axis that runs the length of the body. The body of the working cannula comprises a distal end, a proximal end and a central cavity that is positioned along the central axis of the working cannula and has suitable dimensions for sliding the working cannula over the sliding joint finder and the working cannula further comprises two protrusions extending proximally. In addition, the two protrusions have uneven lengths such that when the working cannula is inserted, the longer of the two protrusions engages the SI joint at a superior end of the SI joint and the shorter of the two protrusions engages the SI joint at an inferior end of the SI joint.

A cannula insertion tool and system and method for placing a cannula are provided. The tool includes a main body and a plurality of tubes (110) removably secured to the main body. Each tube is movable from a retracted position to an extended position. The plurality of tubes can include an inner tube (110A), an outer tube (110B), and a set of tubes (110C, 110D, 110E) positioned between the inner tube and the outer tube. Each tube in the set of tubes is nested in an adjacent tube, the outer tube is positioned outside the set of tubes, and the inner tube is positioned inside the set of tubes. The tool further includes a gripper bar (118) having a gripper disposed on an end thereof for forcibly moving each tube in the set of tubes from the retracted position to the extended position in sequence.