30 results about "Percutaneous aspiration" patented technology

The invention discloses a minimally invasive degradable reduction device for thoracolumbar vertebral fracture, and relates to the technical field of medical instruments. The mounting mechanism is mounted on the outer wall of the connecting rod in a sleeving manner; the pedicle screw is movably inserted into the middle of the top end of the mounting mechanism; an implantation mechanism; through cooperative work of the connecting rod, the mounting mechanism, the pedicle screw and the connecting mechanism, the whole reduction device adapts to minimally invasive approach modes such as percutaneous puncture and can be implanted into the body of a patient through a percutaneous puncture channel, a skin incision of the minimally invasive approach is small, damage to surrounding tissue is greatly reduced, and the reduction effect is good. Due to the layered design of the screw body in the pedicle screw, bone tissue ingrowth is promoted while the supporting strength is kept, and the reduction device is made of degradable materials, can be gradually degraded along with fracture healing after an operation and is metabolized and absorbed by an organism, and does not need to be taken out through a secondary operation, so that physical and mental pain of a patient is relieved; and the medical cost and the potential risk of the secondary operation are also reduced.

The invention relates to the technical field of interventional therapy, and particularly discloses a percutaneous puncture navigation system which comprises a camera module and a display module, the display module displays a main picture shot by the camera module, and an electronic protractor picture is suspended on the main picture as a floating layer; a puncture layer S, a puncture point A, a puncture angle alpha, a puncture depth D and a puncture target point T of a focus area of a patient are determined, a camera module is arranged on one side of the patient in the scanning direction, and the camera module aims at the body surface of the focus area to shoot, so that a round point O in a picture of the electronic protractor coincides with the puncture point A of the body surface of the patient; a datum line in an electronic protractor picture is parallel to the horizontal plane; the puncture needle coincides with the angle line of the angle alpha in the picture of the electronic protractor, and the puncture needle enters the depth D along the angle line alpha of the electronic protractor and then reaches the puncture target point T. The puncture cloth needle arranged as the puncture needle achieves the visual navigation function, reduces the puncture difficulty, improves the puncture precision and reduces the puncture scanning frequency.

A balloon catheter with positioning and protection functions is used for percutaneous microballoon compression surgery to treat trigeminal neuralgia. It includes a balloon assembly (1) and a catheter assembly (2). The balloon assembly (1) includes a first marker point (11), a second marker point (12), a latex balloon (13), and a third marker point (14). The latex balloon (13) consists of two parts. Its distal part has a smaller outer diameter after inflation and serves as the positioning part (131). Its proximal part has a larger outer diameter after inflation and serves as the compression part (132). The second marker point (12) is located at the junction of the positioning part (131) and the compression part (132) of the latex balloon (13) when it is inflated to the normal size. The positioning step on the latex balloon avoids excessive compression of the posterior fossa during the operation. The location of the balloon step is marked by the second marker point. With the help of preoperative 3D modeling, the balloon position is accurately determined, which reduces the difficulty of the operation.

The invention relates to the field of medical auxiliary instruments, in particular to a spinal endoscopic dura mater retraction device which comprises a puncture component, and the puncture component is used for percutaneous puncture to the position close to a spinal canal dura mater; a suspension part is arranged in the puncture part, and the suspension part is used for extending out of the puncture part and being connected with the cut edge of the dura mater. An operation part is further arranged on the puncture part, and the operation part is used for adjusting the retraction force applied to the dural mater by the suspension part; by controlling the operation part, the suspension part is fixed and retracts the dura mater to expose the spinal cord tissue. Through the integration of puncture, suspension and operation components, the traction of the dura mater under the minimally invasive condition of the spine endoscope is realized.

In accordance with the inventive concepts, provided is a cryo-delivery apparatus and method. In various embodiments, the cryo-delivery apparatus is useful to perform a percutaneous cryo-delivery method. In one embodiment, a therapeutic is adhered by freezing to a distal end of a catheter, the distal end is brought into contact with tissue to be treated, e.g., directed percutaneously, and the distal end is then thawed to deliver the therapeutic to the tissue. In another embodiment, the distal end is directed to the tissue to be treated, e.g., percutaneously, then brought to freezing to established stable coupling to the tissue, a therapeutic is then directed through the catheter and distal end to the treatment site, the distal end is thawed to release and deliver the therapeutic to the tissue, and the catheter can then be withdrawn.

The invention relates to an ultrasonic puncture structure and an ultrasonic puncture system. The ultrasonic puncture structure comprises a puncture needle; the puncture cannula is partially arranged on the outer side of the puncture needle in a sleeving mode, and the puncture needle is movably arranged on the puncture cannula, so that the needle point of the puncture needle can be exposed out of the puncture cannula; the ultrasonic transducer is arranged in the puncture needle and close to the needle point of the puncture needle, and the ultrasonic transducer can be electrically connected with ultrasonic imaging equipment of the ultrasonic puncture system so as to transmit ultrasonic signals to the ultrasonic imaging equipment. Therefore, the ultrasonic transducer is integrated in the puncture needle, and the focus part can be monitored in real time through ultrasonic waves emitted by the ultrasonic transducer, so that the puncture needle is guided to accurately pierce the focus part, a percutaneous channel from the puncture cannula to the focus part is established, and later diagnosis and treatment are facilitated. Ultrasonic scanning in the body of a patient can be achieved, transition scanning is not needed, the percutaneous puncture positioning precision is improved, the operation time is shortened, and the medical cost is reduced.

The invention relates to a left ventricle auxiliary device and an implantation assembly. The left ventricle auxiliary device comprises a small and special electric machine and a housing with a blood channel, the small and special motor comprises a shell and a pump machine body, the pump machine body is provided with a motor shaft, pump blades are arranged on the motor shaft, and the motor shaft extends out of the shell and extends into the housing; the shell is provided with a rear cover, the inner end of the wire penetrates through the rear cover to be electrically connected with the pump machine body, and the outer end of the wire is electrically connected with an external power supply control device. The housing comprises a pumping-in cover, a transition pipe and a pumping-out cover, the pumping-in cover is provided with a blood suction hole, and the pumping-out cover is provided with a blood discharge hole; a first suction cup and a second suction cup are arranged outside the shell, and a third suction cup and a fourth suction cup are arranged outside the transition pipe. The left ventricle auxiliary device can be implanted into a body through the implantation assembly. The left ventricle auxiliary device is simple and small in structure, implantation can be completed through percutaneous puncture by means of the implantation assembly, blood can be pumped into the ascending aorta from the left atrium through a blood channel, and the left ventricle auxiliary function is achieved.

A novel device and system for percutaneously accessing and securing target tissue / organs within a patient for interventional diagnosis or treatment and methods for the same. The access device includes an elongated tube having a lumen therethrough configured to engage a tissue via suction, and a clamping element slidably disposed within the elongated tube configured to move from an open position to a closed position in which tissue that is pushed into the elongated tube when suction is applied is pinched between the clamping element and the elongated tube thereby holding an area of tissue exposed at an open end of the elongated tube such that it can be accessed from outside the body of the patient through the tube. The system may include the novel device and a trocar having an awl and a rigid, hollow cannula tube.

The invention provides a double-net-bag cooperative percutaneous puncture integral tumor excision system. The double-net-bag cooperative percutaneous puncture integral tumor excision system comprises net bags, the puncture coaxial guide system is used for establishing a percutaneous working channel from the body surface to the tumor edge; a fixing anchor is arranged at the far end of the inner core fixing rod and is used for fixing tumor tissues; the double-net-bag cutting system comprises an outer net bag and an inner net bag; the outer net bag is made of a high-rigidity material and is used for firstly expanding to create a protected operation space in tissues around the tumor. The whole core cutting component is double-net-bag cooperative cutting, no circuit or sensor or hydraulic system is adopted, the production cost is extremely low, large-scale manufacturing is easy, operation is visual, the whole operation process only comprises several simple actions of pushing, rotating and pulling, the learning cost of doctors is low, the surgical operation intuition is well met, and popularization is easy.

Techniques for segmenting a percutaneous medical procedure based on one or more determinable phases. The techniques may include obtaining a first set of features over a first time period. The first set of features may be derived from instrument telemetry data corresponding to an endoluminal scope instrument. The technique may also include obtaining a second set of features over the first time period. The second set of features may be derived from instrument telemetry data corresponding to a percutaneous needle instrument. Based on the first set of features and the second set of features, the techniques may classify at least a portion of the first time period as a first phase of the percutaneous medical procedure.

Methods for sealing a percutaneous puncture in a wall of a body passageway are disclosed herein. The methods include inserting a deployment instrument into the puncture via a toggle along the guidewire, and actuating the deployment instrument to move the first component and the second component relative to each other such that the toggle abuts the wall of the artery proximate the puncture to seal the puncture.

1. Name of the product in this design: Percutaneous puncture surgical robot trolley. 2. Intended use of this design: for puncture-type surgeries. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of experimental animal cerebral ischemia model construction, in particular to a cerebral ischemia model percutaneous puncture suture introduction method and a cerebral ischemia model percutaneous puncture suture introduction device, and the method comprises the following steps: percutaneous puncture of common carotid artery by a superfine puncture needle, withdrawal of the puncture needle after feeding into a micro catheter sheath through a needle cavity, and compression hemostasis by an external pressure type micro air bag ring. The suture is pushed to the starting section of the middle cerebral artery through the micro catheter sheath to complete embolism, the suture is withdrawn during reperfusion, air bag hemostasis is carried out again, and the device comprises a superfine puncture needle, the coaxial micro catheter sheath, a suture pushing core wire and an external pressure type micro air bag ring which form a three-layer nested structure, and the superfine puncture needle, the coaxial micro catheter sheath, the suture pushing core wire and the external pressure type micro air bag ring form a three-layer nested structure. The integrity of the blood vessels and the smoothness of the blood flow are completely retained after operation.

This disclosure provides methods, devices, and systems for planning medical procedures. The present implementations more specifically relate to techniques for using machine learning to predict distension of an anatomy and recommend a plan for percutaneously accessing a target within the anatomy based on the predicted distension. In some aspects, a recommendation system may extract features from input data representing a mapping of an anatomy and infer, from the extracted features, a location on the anatomy for percutaneous entry based on a machine learning model trained on fluidics simulations that predict anatomical distension in response to irrigation. Example suitable input data may include three-dimensional images of the anatomy, two-dimensional images of the anatomy, and / or sensor data received via sensors disposed on an instrument within the anatomy. The recommendation system may further generate a plan for percutaneously accessing a target within the anatomy via the location inferred from the set of features.

The invention discloses a minimally invasive ultrasonic guided percutaneous rabbit intervertebral disc degeneration modeling mode, and relates to the technical field of ultrasonic modeling, and the method comprises the following steps: fixing an experimental rabbit on an operation table in a prostrate manner in an anesthetic state, and raising the abdomen to maintain lumbar lordosis; an ultrasonic probe is used for scanning along the longitudinal axis of the spine, and the L5 transverse process is recognized upwards from the highest point of the crista iliaca; positioning an L5 / 6 intervertebral disc gap in the cross section ultrasonic image by taking the identified L5 transverse process as an anatomical reference; a stable high-echo target spot formed by fascia is confirmed in the intersection area of the L5 transverse process head side and the superior articular process ventral side; marking a puncture needle insertion position on the skin surface according to the high-echo target spot; percutaneous puncture is conducted under ultrasonic real-time guidance along the marked position, the needle tip slides into the L5 / 6 intervertebral disc along the superior zygopophysis bone surface, and it is confirmed that the needle tip is located in the nucleus pulposus through viscous resistance and the unlocking hand feeling; the needle tip is controlled to stay in the intervertebral disc for 10 seconds, the puncture depth is kept at 5 mm, and mechanical disturbance is completed to induce the intervertebral disc to retreat.

The invention relates to the technical field of medical apparatus and instruments, and discloses a disposable body surface noninvasive traction patch for percutaneous suspension of a balance drag hook, which is characterized by comprising a traction patch, the traction patch comprises a flexible substrate layer and a medicine-carrying biological adhesive layer which are sequentially arranged from top to bottom; a traction anchoring part is arranged on the upper surface of the traction patch, a connecting part is arranged on the traction anchoring part, and the connecting part is used for being connected with an external traction piece. The non-invasive operation can be thoroughly achieved, body surface fixation is achieved through the traction patch, percutaneous puncture is not needed, risks such as puncture point bleeding and nerve injury are eliminated, the operation safety is improved, meanwhile, extra scars are avoided, and the postoperative attractiveness is guaranteed; the traction paste is fixed to the body surface, an internal operation channel of a single hole under the xiphoid process is not occupied, the problem of instrument fight is thoroughly solved, the sufficient operation space is provided for a surgeon, and the operation smoothness and accuracy are improved.

The invention provides a CT embedded percutaneous puncture surgical robot which comprises a mainframe box, a system control box, two mechanical arms, a manipulator and an upper computer, the two mechanical arms extend out of the system control box, and supporting points at the far ends of the two mechanical arms are located in a scanning plane of a CT machine; the outer contour of the mainframe box is in a circular arc shape, and the mainframe box is arranged above the interior of a CT hole of a scanning frame of a CT machine through a supporting point at the far end of the mechanical arm. An arc-shaped sliding rail and a sliding block are arranged in the mainframe box; the manipulator comprises a puncture depth controller, a trocar holder, a trocar and a trocar driver; when in use, the trocar is located in a scanning plane of the CT machine. According to the system, early and early lung tumors can be accurately positioned, a doctor can puncture a tumor part with the puncture trocar to obtain a pathological sample while CT is carried out, and the credibility of a puncture biopsy result reaches 100%.

A system and method for evaluating percutaneous needle pathways provides an automatic segmentation of local tissue structures and performs a weighting to rank a large number of paths to quickly identify clinically favorable choices.

An implant system is provided, which includes an implant, including an implant body and an electrode disposed on the implant body; and a hollow needle, which is configured to be percutaneously advanceable into tissue of a subject. The hollow needle is shaped so as to define a lumen dimensioned to house the implant; at a distal end of the hollow needle, a distal end opening configured to facilitate passage of the implant therethrough from the lumen; and a lateral wall shaped so as to define a window therethrough to the lumen. Other embodiments are also described.

The present disclosure relates to bandages used to protect and disinfect or provide a protective antimicrobial barrier to a surgical site with one or more percutaneous pins or wires extending therefrom. The bandage includes an antimicrobial agent, an absorbent layer, an adhesive layer, and one or more slits designed to receive therethrough a percutaneous pin or wire extending from the surgical site. The bandage enhances and facilitates the ease of protecting a surgical site with one or more percutaneous pins or wires extending therefrom without disturbing the pins or wires and while protecting the surgical site from infection, contamination, and injury during the healing process.

The invention discloses a construction method and application of a dog lung space-occupying lesion model. The invention provides a method for constructing a peripheral lung lesion model on the periphery of a dog lung by injecting a temperature-sensitive hydrogel mixture through a natural orifice by using a bronchoscope, which overcomes the technical problems of strong invasiveness, complex modeling, low success rate, uncontrollable or unstable focus image and the like in the prior art. And the low-invasive, rapid, visible and stable peripheral lung disease canine model is constructed. Compared with existing percutaneous puncture or thoracotomy modeling, the method has the advantages that surgical operation is not needed, the modeling speed is high, imaging is visible, the focus stability is high, the simulation degree of an animal model to human peripheral lung lesion is remarkably improved, and a high-quality experimental platform is provided for related disease mechanism research and new technical verification.

The utility model discloses a multistage nested percutaneous puncture catheterization, including hollow steel needle, be provided with the needle core of matched in hollow steel needle, the one end of hollow steel needle has the trumpet mouth, is provided with the sharp head in the other end, and the trumpet mouth department of hollow steel needle is provided with steel needle butt joint plate, the outer wall of hollow steel needle is equipped with multistage sleeve assembly, and multistage sleeve assembly includes a plurality of sleeve monomer that are in turn sleeved from inside to outside, one end of sleeve monomer is provided with sleeve butt joint plate, and the other end has the conical head, the sleeve butt joint plate of two sleeve monomers of adjacent sleeve is in turn butts, and the conical head of two sleeve monomers of adjacent sleeve is in turn transition link, and the both sides of sleeve monomer are provided with thin wall part, and sleeve monomer can tear from thin wall part under the action of external force. The utility model discloses percutaneous puncture catheterization integrates puncture needle and multistage sleeve, can realize step -by -step expansion and catheterization, can adapt to clinical routine small -bore drainage tube, also can effectively support the special drainage demand of bigger bore.

The application provides a clamp type arteriovenous fistula forming device, which comprises a first handle and a second handle which are hingedly connected to each other, one end of the first handle near the hinge joint is connected with a first ablation tube, one end of the second handle near the hinge joint is connected with a second ablation tube, the free end of the first ablation tube is provided with a first ablation head, the free end of the second ablation tube is provided with a second ablation head, and the first ablation head and the second ablation head are connected with a power supply through respective electrode wires. The hingedly connected first handle and second handle form a fulcrum through the hinge joint, and the ablation heads can be accurately positioned based on the fulcrum, and the phenomenon of ablation mispositioning does not occur; the whole structure is simple and easy to operate, percutaneous puncture can be realized to form an arteriovenous fistula, and the surgical incision can be effectively reduced, and the surgical risk can be reduced.

The invention relates to an ultrasonic and CT image fusion percutaneous puncture real-time path planning system, and relates to the technical field of medical image navigation, and the method comprises the steps: extracting skeleton multi-level features in a preoperative CT image and skeleton interface and acoustic features in an intraoperative real-time ultrasonic image, and carrying out the unmarked real-time registration and fusion through a multi-level matching engine; and calculating and displaying a real-time puncture path according to the path length, the obstacle avoidance distance and the tissue penetrability cost in the fused image space on the basis of a dynamic confidence evaluation result. According to the method, high-precision image fusion without in-vitro marking, adaptive guidance of dynamic change of tissues in an operation and path planning of fusion biomechanical safety consideration are realized.

The invention relates to the technical field of puncture guiding devices, and discloses a foldable percutaneous puncture guiding device and a self-unfolding positioning structure.The foldable percutaneous puncture guiding device comprises a puncture needle, a catheter is arranged in the puncture needle, a plurality of containing grooves are formed in the side wall of the end, close to the bottom, of the catheter, and a plurality of air conveying channels communicated with the containing grooves are formed in the catheter; a corrugated hose is fixedly connected to the inner wall of the extrusion plate, a mounting plate is fixedly connected to the interior of the storage groove, a top plate A is rotatably connected to the top of the mounting plate, a top plate B is rotatably connected to the top of the top plate A, a moving plate is rotatably connected to the top of the top plate B, and the top of the moving plate makes contact with the bottom of the extrusion plate. According to the foldable percutaneous puncture guiding device, the problem that a traditional self-unfolding positioning structure is not thorough in resetting, and consequently tissue in the body of a patient is damaged when the traditional self-unfolding positioning structure is withdrawn is solved.

The invention relates to the technical field of medical instruments, and particularly discloses a disposable hemostatic balloon system for percutaneous paracentesis and a hemostatic method of the disposable hemostatic balloon system. The system comprises a balloon catheter unit and a pressurizing control unit. The balloon catheter unit comprises a balloon, a catheter and a developing mark, the far end of the catheter is of a closed structure, and one or more catheter air holes are formed in the side wall of the catheter to achieve fluid injection. The pressurizing control unit comprises a one-way valve mechanism and a locking and sealing mechanism and is used for controlling the balloon to be filled and fixedly sealed with the catheter. The balloon is conveyed to the interior of a wound to be filled, direct and uniform compression on a bleeding point is achieved, and the device has the advantages of being reliable in hemostasis effect, easy, convenient and visual to operate, high in safety and suitable for various puncture applications.

The invention relates to a CT (Computed Tomography)-guided percutaneous puncture pulmonary nodule targeted tissue positioning method which comprises the following steps: acquiring perfusion images of pulmonary artery and bronchial artery, processing perfusion volume data of the perfusion images, acquiring pulmonary artery blood flow, bronchial artery blood flow and pulmonary artery perfusion indexes, and generating corresponding perfusion pseudo-color images; taking the blood supply area of the bronchial arterial blood flow as lung tumor tissues, and performing lung tumor area targeted localization according to color features in the perfusion pseudo-color graph of the bronchial arterial blood flow to obtain a target spot; the guide sheath needle based on magnetic navigation is used as a puncture positioning needle, and is positioned and punctured to lung tumor tissues according to a target spot for sampling. The accuracy and safety of pulmonary nodule pathological diagnosis are improved, complications are reduced, and a more reliable basis is provided for treatment of patients.

This invention relates to the field of medical device technology, and more particularly to a target tissue resection and grasping device, comprising: an execution unit, a guiding unit, and a driving unit. The target tissue resection and grasping device provided by this invention achieves complete envelopment of the target tissue through a spatially adaptive envelope structure constructed from at least three flexible continuums; it efficiently cuts the tissue through an end-integrated cutting body, avoiding tissue fragmentation and cell scattering caused by traditional vacuum-assisted rotary cutting and percutaneous puncture grasping techniques, thus physically avoiding the risk of iatrogenic implantation and ensuring the integrity of the anatomical edges of the pathological sample; secondly, it can extend or retract a rope via a driving disc, enabling functions such as extension, bending, retraction, and repositioning of the flexible continuum, with reversible operation; moreover, the driving disc can cooperate with a host computer to achieve path planning, thereby achieving precise control.

The application discloses an animal model construction method simulating human ischemic heart failure, and relates to the field of biomedical experimental animal models, and comprises the following steps: S1, model construction: embolism suspension liquid containing microspheres with a specific diameter is injected into the left ventricular cavity of a target animal through percutaneous puncture, so that the microspheres are embolized in myocardial microvessels through coronary artery circulation, thereby establishing a coronary artery microembolism model; S2, early screening: within 24 hours after model construction, cardiac ultrasound detection and serum biomarker detection are performed on the target animal; the animal model construction method simulating human ischemic heart failure simulates embolism of human myocardial arterioles and capillary arterioles by controlling the particle size (15-45 mu m) of the microspheres, induces diffuse myocardial ischemia closer to the clinic, thereby stably leading to progressive ventricular remodeling and chronic heart failure, rather than acute transmural infarction.