59 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.

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.

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.

The present invention discloses an implantable blood pump assembly, comprising: a housing defining an inlet, an outlet and a flow path extending from the inlet to the outlet; a rotor positioned within the scope of the flow path; a stator positioned within the housing and operable to drive the rotor, and an outflow cannula, the outflow cannula including a joint assembly configured to removably mechanically connect to the outlet joint and including a first member of an anti-rotation mechanism and a first member of an axial lock; the housing includes an outlet joint, the outlet joint including a second member of the anti-rotation mechanism and a second member of the axial lock. During insertion of the outflow cannula into the housing outlet, the first member and the second member of the anti-rotation mechanism are positioned to engage with each other prior to the first member and the second member of the axial lock.

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.

The utility model relates to the technical field of surgical instruments, and discloses a combined cannula for an intervertebral foramen endoscope operation, which comprises a protective tube seat and a protective cannula connected with the protective tube seat, and the tube seat is disc-shaped and is rotatably connected with a working tube seat. A circular groove is formed in the bottom of the working pipe seat, a working sleeve is arranged in the circular groove and communicated with the working pipe seat, and the working sleeve is inserted into the protective sleeve. By means of the design that the working tube base is rotationally connected with the working sleeve, the round groove in the bottom of the working tube base wraps and protects the tube base, the operation sleeve can rotate flexibly in the using process, and the convenience and efficiency of an operation are improved. The working cannula can be flexibly inserted into the protective cannula, combined use is convenient, stability of the operation cannula is guaranteed, possible damage to cartilage tissue and vascular nerves in the operation process is effectively avoided, safety and accuracy of the operation are guaranteed, and the operation cannula has the advantages of being easy and convenient to operate, safe, reliable, accurate and efficient, and has wide application prospects. And the requirements of modern operations on high efficiency, safety and accuracy can be met, and wide market application prospects are achieved.

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.

The present invention relates to the field of surgical robot control technology and discloses a method for estimating the patient-side force during surgical robot surgery, comprising: constructing a dynamic model of the patient-side robotic arm of the surgical robot in free space; inserting the patient-side robotic arm into the patient's abdominal wall through a cannula to collect joint data, and simultaneously predicting the free-space torque of each joint at the current moment through the dynamic model; using the collected position, velocity data, and free-space torque of each joint as input data, and using the residual between the measured torque and free-space torque of each joint at each moment as label data, and training a neural network model for each joint separately; and calculating the contact force between the end effector and the patient's tissue based on the current measured torque of each joint, the free-space torque, and the predicted additional torque of each joint. The present invention can accurately estimate the interaction force between the surgical robot end effector and the tissue, thereby improving the safety and accuracy of the surgery.

A method for inserting a cannula of an endoscope into a cavity of a patient includes slidably coupling an inner sleeve of a sheath with an outer sleeve of the sheath and advancing an introducer, in a collapsed configuration and positioned at a distal end of the outer sleeve, through a cavity of the patient until the introducer is inserted into the internal space of the patient. The method includes translating the inner sleeve relative to the outer sleeve and towards the introducer to dilate the internal space, and placing the cannula of the endoscope within the inner sleeve of the sheath, proximal to the introducer at the distal end of the outer sleeve. The method includes advancing the cannula along the inner sleeve and through the introducer a desired distance within the cavity, and removing the cannula and sheath from the patient.

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.

The present invention provides a cannula guide for cervical spinous process longitudinal cutting type laminoplasty, which relates to the technical field of medical devices. The cannula guide for cervical spinous process longitudinal cutting type laminoplasty comprises a guide tube for guiding the cannula; one end of the guide tube is an entry port for inserting the cannula, and the other end is an extension port for extending the cannula. The technical effect of reducing the risk of spinal cord injury is achieved.

An obturator assembly with a rotatable and cannulated obturator shaft for inserting a cannula into a human joint space. The obturator assemblies includes an elongated body having a proximal end and a distal end with a channel extending along an inner surface of the elongated body. The obturator assembly also includes a locking mechanism connected within the elongated body. The locking mechanism is rotatable between a first configuration and a second configuration. A cannulated obturator shaft is attached to the locking mechanism and is rotatable between the first configuration and the second configuration via the locking mechanism. The obturator assembly has a latch assembly connected to the cannulated obturator shaft which is rotatable between the first configuration and second configuration via the locking mechanism. The latch assembly securely and removably attaches to a cannula.

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.

The present invention discloses an occluder assembly having a rotatable and hollow occluder shaft for inserting a cannula into a joint space of a human. The occluder assembly includes an elongated body having a proximal end and a distal end, the elongated body having a channel extending along an inner surface of the elongated body. The occluder assembly further includes a locking mechanism connected within the elongated body. The locking mechanism is rotatable between a first configuration and a second configuration. The hollow occluder shaft is attached to the locking mechanism and is rotatable between the first configuration and the second configuration via the locking mechanism. The occluder assembly has a latch assembly connected to the hollow occluder shaft, the hollow occluder shaft being rotatable between the first configuration and the second configuration via the locking mechanism. The latch assembly is firmly and removably attached to the cannula.

A method for damaged viable disc regeneration has the steps of identifying the damaged viable disc and inserting a cannula via Kambin's Triangle to an edge of an outer annulus of the disc; introducing a trocar into the cannula and penetrating the trocar into a central region of nucleus pulposus; removing a tissue biopsy sample from the nucleus pulposus for pathology and removing additional degenerative tissue from the central region to create a void or space; withdrawing the trocar from the cannula and inserting a needle into the cannula to the void or space; and injecting a regenerative disc material through the needle into the void or space to repair the damaged disc.

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.