68 results about "Percutaneous aspiration" patented technology

A device for sealing a puncture in a patient includes a sealing component including an elongate control member configured to pass through a puncture in skin of a patient. The sealing component also includes an expandable member disposed near a distal end of the control member, and a tip releasably attached to the elongate control member distal to the expandable member. The device also includes a sealing material delivery component including a delivery tube through which the control member of the sealing component is configured to extend. The delivery tube is configured to deliver sealing material through an opening in a distal end of the delivery tube.

A needle tip protective device for use with percutaneous entry needles. In one embodiment, the needle tip protective device includes a needle guard slidably mounted on a hypodermic needle, the latter having a needle tip located at the distal end thereof, and a change of profile formed medially there along. The needle guard is movable along the hypodermic needle and engageable with the change in profile formed thereon. The engagement with the change in profile is configured to correspond with the ability of the needle trap to entrap the needle tip once the needle trap has advanced the sufficient distance distally along the hypodermic needle. In further refinements, the needle trap may be biased toward the distal needle tip of the needle.

Systems and methods are disclosed for identifying and deploying a protective cover about a percutaneous puncture site formed by a hypodermic needle. In the preferred embodiment, a marking agent or puncture site covering, the latter of which preferably takes the form of a bandage, is releasably secured upon either the needle hub of the hypodermic needle or on a sliding member or sleeve axially moveable along the length of said needle that forms a marking or detaches therefrom once compressed about the puncture site.

The present invention discloses a percutaneous interventional puncture instrument through CT positioning, which is used in the guiding positioning of puncture needle in CT-guided percutaneous interventional surgery or other percutaneous interventional instrument. The device comprises a frame body and a cross bar fixed in the frame body. The cross bar is provided with an angular disk, which is provided with a position pointer. A hole is arranged in the position pointer. The fixing device for the puncture guiding device comprises a fixed block, a fixed bolt, a bolt sleeve and the fixing hole of the puncture guiding device arranged in the sleeve tube. The fixing device for the puncture guiding device is arranged in the hole of position pointer. The present invention is used in guiding positioning of needle in the targeted surgery or other percutaneous interventional instrument. Besides targeted interventional therapy for tumor, the present invention can be used in the treatment process of all CT guided percutaneous punctures requiring fixing needle or other percutaneous interventional instrument in a certain direction.

Systems and methods are disclosed for identifying and deploying a protective cover about a percutaneous puncture site formed by a hypodermic needle. In the preferred embodiment, a marking agent or puncture site covering, the latter of which preferably takes the form of a bandage, is releasably secured upon either the needle hub of the hypodermic needle or on a sliding member or sleeve axially moveable along the length of said needle that forms a marking or detaches therefrom once compressed about the puncture site.

The invention discloses a tumor isocenter multi-angle non-planar percutaneous puncture method belonging to a novel method that a doctor carries out tumor percutaneous puncture on a tumor patient under the guidance of CT in the technical field of medical treatment, and solving the problems of high dependence on experiences and techniques of an operator, easy generation of larger puncture errors, long occupation time of puncture, large difficulty in puncturing smaller tumors or deeper tumors in early stage, and low success rate in the tumor percutaneous puncture technology. The technical scheme is as follows: the tumor isocenter multi-angle non-planar percutaneous puncture method comprises the steps of sharing an isocenter by a center point of a semi-circular piercer and a center point of a tumor through coordinate system transfer, and driving a puncture needle for realizing multi-angle non-planar puncture through sliding of an arrow rest and rotating of the piercer. The tumor isocenter multi-angle non-planar percutaneous puncture method has the advantages that the problems of high dependence on experiences and techniques of the operator, easy generation of larger puncture errors, long occupation time of puncture, large difficulty in puncturing smaller tumors or deeper tumors in early stage, and low success rate in the tumor percutaneous puncture technology are solved, vital organs, puncture taboo organs and taboo focuses can be effectively avoided, the tumor percutaneous puncture error can be shortened to 2mm under the guidance of the CT, and the highest tumor percutaneous puncture precision at home and abroad is achieved.

The invention relates to the technical field of medical instruments, and provides a novel embolectomy catheter system. The novel embolectomy catheter system is composed of a blocking balloon catheter sheath and an embolectomy balloon catheter. When an embolectomy operation is conducted, after percutaneous puncture succeeds, a guide wire follows up for guiding, a dilator and the catheter sheath follow up under the guidance of the guide wire, the catheter sheath follows up to the near end of a thrombus embolus, the dilator exits, the far end of the catheter sheath is kept to be located at the near end of the thrombus embolus, the blocking catheter sheath is pushed forwards to the near end of the thrombus embolus, a balloon is dilated to block movement of the thrombus embolus to the near end, under the guidance of the guide wire, a guide wire cavity of the blocking catheter sheath follows up the embolectomy balloon catheter, a balloon on the embolectomy balloon catheter is dilated, and therefore the thrombus embolus is limited between the two balloons; at the moment, the embolectomy balloon catheter is pulled back to pull the thrombus embolus into the blocking catheter sheath located in the middle, and then the embolectomy operation is completed.

The invention discloses a respiratory motion compensation method for lung percutaneous puncture. The method comprises the following steps: constructing a four-dimensional visualization model by usingpre-operative 4DCT images; extracting a respiratory movement trajectory, selecting a target point and a skin insertion point based on the four-dimensional visualization model and respiratory movementtrajectory, forming a puncture path, and determining an initial position, direction and puncture depth of a puncture needle; and during intraoperative puncture needle insertion, acquiring respiratorysignals of a patient in real time by a respiratory monitoring device, inputting the respiratory signals into a control system of a puncture robot, and analyzing characteristic parameters of the respiratory signals by the control system to guide the puncture robot to iteratively adjust the needle insertion speed to ensure that a needle tip reaches the target point at a specified time, so as to compensate for tumor displacement caused by breathing. The method provided by the invention allows puncture to be performed in a state of free breathing, has a wider application range, and helps to reducepain of the patient and improve the success rate of surgery.

The invention provides a multi-purpose percutaneous puncturing, channel building, fistulization and drainage device which consists of a pin sheath tube, a pin core, a separable injector interface, a guide wire, multiple layers of passage expansion tubes, working sheath tubes and drainage tubes. The left end of the pin core is provided with a pin core handle; a circular groove is arranged in an internal hole of the pin core handle and is meshed with the left end of the separable injector interface and the left end of the pin sheath; the pin core is inserted in the pin sheath tube; the separable injector interface is arranged in close sliding match at the left end of the pin sheath tube and a convex ring is arranged at the right end of the pin sheath tube; the innermost layer of passage expansion tube is arranged outside the pin sheath and the left end of the tube is connected with the convex ring; the working sheath tubes are arranged outside of the outermost layer of passage expansion tube and the left end of the tube is provided with a handle; the inside diameters of the working sheath tubes are the same as the adjacent multiple layers of passage expansion tubes. Compared with the prior art, the invention can reduce operative complications, improve operative success rate, reduce the work intensity of medical staff and can be applied to minimally invasive operations for various diseases due to the good universality.

The invention relates to a three-dimensional percutaneous puncture positioning and fixing device. The device comprises a first horizontal moving module, a second horizontal moving module, an angle adjusting module, a puncture needle and a plurality of supporting columns, the angle adjusting module moves in two perpendicular directions in a certain plane through the first horizontal moving module and the second horizontal moving module. The angle adjusting module comprises a spherical part, a supporting part and a locking part, the puncture needle is installed on the spherical part, the spherical part is installed in the supporting part, and the supporting part is connected with the second horizontal moving module. Compared with the prior art, when the puncture needle is used, only the needle tip of the puncture needle needs to be placed on a planned skin part, the puncture needle does not need to be inserted into the skin, the needle inserting point and the needle inserting angle of the puncture needle are adjusted outside the skin, and damage caused by repeated puncture in an existing method is overcome; meanwhile, the puncture accuracy can be remarkably improved, and the adjustment frequency is reduced.

The invention discloses a thrombus removing sleeve and a thrombus removing balloon catheter assembling kit for treating thromboembolic diseases in a percutaneous puncture cavity. The thrombus removingsleeve comprises a thrombus removing passage catheter with a thrombus leading-in umbrella and an umbrella cover releasing assembly, wherein the umbrella cover releasing assembly is used for controlling the folding compression or release of the thrombus leading-in umbrella. A thrombus removing balloon catheter is a single-cavity balloon catheter, and is matched with a guide wire through a side wall guide wire hole of a guide section, so that the cross section area of the thrombus removing balloon catheter is reduced; the thrombus removing balloon catheter is matched with the thrombus removingsleeve, so that thrombus in arteries and veins can be effectively and rapidly removed; and the thrombus removing sleeve is particularly suitable for use under the condition of high-load thrombus embolism of the arteries and veins of limbs, so that a patient is benefited.

The invention discloses a percutaneous puncture and dilation visible irrigation-suction system and a method of using the same. The system comprises a main tube, which is contiguous with the sheath tube and has an end for an endoscope insertion. The sheath tube comprises an inner sheath and an outer sheath joined together in a sleeve type. There is a space between inner and outer sheath. The inner sheath is connected to main tube, together building a channel via which the endoscope is inserted and withdrawn. The sheath tube is connected to main tube after completing puncture and dilation, then endoscope system is introduced for observation and operation. The present invention provides a percutaneous puncture and dilation visible irrigation-suction system and a method of using the same, with a continuous controllable visible negative pressure aspirator, achieving high irrigation and powerful suction efficiency, as well as clear endoscopic view.

The invention discloses a vascular sheath assembly and a method for establishing a vascular intervention pathway in a minimally invasive manner by use of the same. The vascular sheath assembly comprises a puncture needle, a catheter sheath, a dilator and guide wires. The method for establishing the vascular intervention pathway in the minimally invasive manner by use of the vascular sheath assembly comprises steps as follows: the puncture needle is inserted into a blood vessel through percutaneous puncture; one guide wire is imbedded in the blood vessel along the inner wall of the puncture needle; the puncture needle is taken out, and the guide wire is left in the blood vessel; the catheter sheath and the dilator are imbedded in the blood vessel along the guide wire; the dilator and the guide wire are taken out, and the catheter sheath is left in the blood vessel; the other guide wire is imbedded in the blood vessel along the catheter sheath; the catheter sheath is taken out, and the other guide wire is left in the blood vessel; the vascular intervention pathway is established. The invention aims to provide the vascular sheath assembly and the method for establishing the vascular intervention pathway in the minimally invasive manner by use of the same. The vascular sheath assembly and the method are used for peripheral vessel intervention operation to assist in guide of the guide wires with the maximum diameter of 0.97 mm, and a safe and effective channel is provided for imbedding of the catheter into a human body.

A method of sealing percutaneous punctures in a patient's body that open into an internal body cavity using a sealing material such as a fibrin adhesive while preventing the sealing material from entering the body cavity. An apparatus for delivering the sealing material is also disclosed.

The invention discloses a percutaneous puncture transverse balloon distraction percutaneous kyphoplasty surgical instrument. The instrument comprises a working bushing, a solid puncture needle core, a guide inner core bushing, a pre-bent elastic guide needle, a hollow soft drill and the like, wherein the solid puncture needle core is placed in the working bushing; after the solid puncture needle core is taken out, the guide inner core bushing can be placed in the working bushing; the pre-bent elastic guide needle is placed in the guide inner core bushing, can be arranged in the central hollow part by the hollow soft drill in a penetrating manner and is placed in the working bushing together with the pre-bent elastic guide needle; the pre-bent elastic guide needle can be arranged in the central hollow part in the penetrating manner through a hollow balloon pressurization system and the hollow balloon pressurization system is placed in the working bushing together with the pre-bent elastic guide needle. A conventional diagonally and eccentrically placed distraction balloon can be changed to be transversely and centrally placed to realize single-side puncture so as to achieve the purpose of full filling of bone cement; the height of anterior edge of the vertebral body can be more effectively restored, the operation time can be shortened, the amount of transmission ray in operation is reduced, and the kyphosis osteotomy of vertebral column is reduced.

The invention relates to the technical field of percutaneous puncture, in particular to a percutaneous puncture stereotaxic frame based on CT guidance. The percutaneous puncture stereotaxic frame includes a frame body and a puncture mechanism, wherein the frame body is a reloading mechanism; an arc-shaped first chute is formed in the frame body; a first sliding block is slidably mounted in the first chute; the puncture mechanism is arranged below the frame body; the puncture mechanism is fixedly connected with the first sliding block through a connecting rod; the first sliding block drives thepuncture mechanism to adjust the position when sliding in the first chute, so that the puncture mechanism quickly reaches the position near a puncture position; and the puncture mechanism comprises afirst rack and a second rack which are perpendicular to each other. The puncture accuracy of a dangerous part is greatly improved, the work efficiency is improved, the holdup time of equipment such as CT is shortened, the CT utilization rate is increased, and resources are saved.

The invention provides a lotus-root-shaped guide locator and belongs to a medical instrument. The lotus-root-shaped guide locator mainly solves the technical problems that radiation injures operators and the amount of radiation on patients is excessively large in the existing guide pin location technology. According to the technical scheme, the lotus-root-shaped guide locator is characterized by comprising a cylindrical body (1). One end of the cylindrical body (1) is the holding end, and the other end of the cylindrical body (1) is the locating end extending into a human body. The portion, at the port of the locating end, of a through hole is provided with a locating ring (3). The lotus-root-shaped guide locator is mainly applied to guide and location of percutaneous puncture of a guide pin.

The invention discloses a hepatic portal vein catheter which comprises a catheter body, wherein a guide wire channel, a sensor groove and a lead groove are formed in the catheter body; a sensor whichis arranged in the sensor groove and used for measuring hepatic portal vein pressure; a lead which is arranged in the catheter body lead groove and is used for electrically connecting the sensor withexternal equipment of the catheter body; and coatings which are arranged on the outer surface of the wall surface of the catheter body and the sensing outer surface of the sensor and used for isolating direct contact between the catheter and external blood. The hepatic portal vein catheter integrates the pressure micro-sensor and the drug/electrical stimulation targeted treatment micro-channel atthe same time, hepatic portal vein pressure monitoring and targeted treatment can be carried out in a long-term implantation or short-term intervention mode, the sensor is directly integrated and packaged on the head of the catheter body, hepatic portal vein pressure can be directly measured, measurement feedback response is fast, accuracy is high, and popularization and application are easy. Meanwhile, the catheter is small in size, compact in structure and small in percutaneous puncture wound.

The invention discloses a percutaneous thoracic puncture closed drainage apparatus. The apparatus comprises a sheath tube and a drainage tube, wherein, the front end of the sheath tube is a cusp, theside of the cusp is provided with a side hole, the sheath tube is provided with a skin fixator, the sheath tube has double cavities, the rear end of the sheath tube is provided with two furcations, each furcation is communicated with a cavity, the rear end of one furcation is sealed with a heparin cap and the other furcation is connected with the drainage tube. The percutaneous thoracic puncture closed drainage apparatus also comprises a paracentetic needle and a guide wire, wherein the paracentetic needle comprises a needle body, the rear end of the needle body is provided with an interface which is used to be connected with an injector and a tail-hole corresponding to the guide wire, and the guide wire is a metal wire and is matched with the side hole of the sheath tube and the tail-holeof the paracentetic needle. The percutaneous thoracic puncture closed drainage apparatus has reasonable structure, less complication, low cost and simple and safe operation which can be completed byan ICU doctor independently so that the apparatus benefits the rescue of the seriously ill and is applicable to primary hospitals and outpatients.

The invention relates to a connecting rod type percutaneous puncture positioning and fixing device which comprises a support plate, an angle adjusting module, a puncture needle and a plurality of position adjusting rods, wherein at least two movable joints are arranged on each position adjusting rod, each movable joint can rotate horizontally and vertically. Meanwhile, at least one movable joint on each position adjusting rod has a locking function, and the bottom end of each position adjusting rod is adhered to the skin of a human body. The angle adjusting module comprises a spherical part, asupporting part and a locking part, and the puncture needle is installed on the spherical part. Compared with the prior art, when the puncture needle is used, only the needle tip of the puncture needle needs to be placed on a planned skin part, the puncture needle does not need to be inserted into the skin, external skin adjustment of the puncture needle is achieved, and damage caused by repeatedpuncture in an existing method is overcome; meanwhile, the puncture accuracy can be remarkably improved, and the adjustment frequency is reduced.

The invention relates to a focus enucleation device by percutaneous puncture, comprising a housing, a needle frame, an outer casing, a drawing handle, a fetching inner core, a return spring, an outer casing holder and a nut, wherein the housing is provided with a positioning elastic sheet; the needle frame is installed in the housing in a sliding mode, the rear end part of the needle frame is provided with a drawing concave edge, and the surface of the needle frame with the drawing concave edge, is provided with a positioning lug; after the drawing handle is pulled backwards, the positioning lug is abutted with the free end of the positioning elastic sheet to ensure that needle frame tightly presses the return spring and causes the needle frame to realize buckling positioning in the housing; the needle frame is fixedly provided with the outer casing holder which is provided with the outer casing through the nut; the front section of the fetching inner core is spliced in the outer casing, and the rear end part of the fetching inner core is fixed on the drawing handle; the part of the fetching inner core, which extends towards the back of the drawing handle, serves as an electrode knot; the front end of the drawing handle is provided with a drawing claw of which the front end is provided with a drawing hook matched with the drawing concave edge; when the drawing handle is pushed forwards, the drawing hook causes the free end of the positioning elastic sheet to separate from the positioning lug, and the needle frame resets under the elasticity action of the return spring.