99 results about "Needle guide" patented technology

A highly sealed invasive biosensing assembly and a biological information monitoring apparatus. The present invention relates to the technical field of biosensors. The highly sealed invasive biosensing assembly comprises a biosensor, and an electrode-protecting cover is snap-fitted to the lower part of the biosensor. A guide needle is snap-fitted into the biosensor, longitudinally penetrating the biosensor. The biosensor further comprises a sensing electrode and an electrode pressure plate. In a first state, the electrode pressure plate, the lower part of a needle guide seat, and the interior of the electrode-protecting cover form a first closed cavity. In a second state, the electrode-protecting cover is detached from the biosensor, so that at least part of the sensing electrode entering the first closed cavity and at least part of a needle body extend out of the first closed cavity. The invasive biosensing assembly and the biological information monitoring apparatus form a closed space inside the assembly and the apparatus by means of a snap structure and the positional relationship between components during assembly, thereby improving the hermeticity in the assembly and the apparatus, so that the assembly is in a sterile state before being implanted into a human body.

A needle guide plate bending and milling integrated machine and a needle guide plate bending and milling method. The needle guide plate bending and milling integrated machine comprises a frame (10), a feeding mechanism (20), a bending and milling mechanism (30), and a driving mechanism (40). The feeding mechanism (20) is used for conveying a needle guide plate (1). The bending and milling mechanism (30) is located on one side of the feeding mechanism (20); the bending and milling mechanism (30) is used for bending and milling a part of the structure of the needle guide plate conveyed by the feeding mechanism (20); the bending and milling mechanism (30) comprises bending wheels (31) and a milling wheel (32); the bending wheels (31) and the milling wheel (32) are located in a same plane; the bending wheels (31) and the milling wheel (32) sequentially pass through the part of the structure of the needle guide plate. The driving mechanism (40) is separately connected to the feeding mechanism and the bending and milling mechanism (30); the driving mechanism (40) is used for driving the feeding mechanism (20) to convey the needle guide plate, and is further used for driving the bending wheels and the milling wheel of the bending and milling mechanism to sequentially pass through the part of the structure of the needle guide plate, so as to machine the needle guide plate to be suitable for textile production requirements. The needle guide plate bending and milling integrated machine enables needle guide plates to be bent and milled under the same position reference, avoiding machining errors caused by different references after multiple feedings, and also avoiding the situation where bent guide needle plates are difficult to stack and thus it is inconvenient to further mill the guide needle plates.

An endoscope add-on assembly adapted to be attached to a target endoscope. The endoscope add-on assembly includes an ultrasound imaging head, an ultrasound imaging sub-assembly, and a needle guide ramp. The ultrasound imaging head defines an imaging slice plane. The ultrasound imaging sub-assembly is configured to selectively engage the ultrasound imaging head. The ultrasound imaging sub-assembly includes a retaining element configured to secure the ultrasound imaging sub-assembly to the target endoscope. The needle guide ramp is configured to direct a motion of a needle of the target endoscope. The needle guide ramp is configured to align the needle of the target endoscope within the imaging slice plane when the endoscope add-on assembly is attached to the target endoscope.

An inserter can include a housing and a slider component. The slider component can be coupled to the housing and positioned along an outer surface of the housing. The slider component can be slidable along an elongated slot of the housing and include a guide tab disposed within a guide channel of the housing body. The slider can include a friction tab having a biasing member configured to press against the housing to urge the guide tab against a wall of the guide channel. Further, a deflector component can be provided that includes a needle guide configured to receive a needle of the inserter therein. The deflector component can be removably coupled to the inserter to allow the needle guide to bend the needle and hold the needle in a bent configuration.

1. The name of the design product: needle guide. 2. The use of the design product: used to form a corresponding angle of puncture channel in the plane with the frame body in the ultrasonic intervention operation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: change state perspective view 1.

The utility model discloses a guide pin protection device for a ribbon binding machine. The guide pin protection device comprises a bottom plate, a sliding plate is connected to the bottom plate in a sliding mode, two supporting plates are arranged on the sliding plate, a positioning plate is erected on the supporting plates, a sliding groove is formed in the positioning plate, two sliding blocks are connected into the sliding groove in a sliding mode, and positioning holes are formed in the sliding blocks. The protection assembly comprises a protection seat and a protection plate which are fixedly connected, a through hole is formed in the protection seat, a push needle is arranged in the through hole, the top end of the push needle is hooked with the positioning hole, a protection groove is formed in the inner side face of the protection plate, and the push needle is located in the protection groove; the number of the protection assemblies is two, one protection base is fixedly connected with the bottom plate, the other protection base is in sliding connection with the bottom plate, and a sliding adjusting device is arranged between the protection base and the bottom plate which are in sliding connection. According to the device, the protective sleeve can prevent the push pin from being damaged, the protective groove can play a role in guiding sliding of the push pin, normal work of the plastic pin machine is guaranteed, and meanwhile a user can meet the machining requirements of different plastic pins by adjusting the distance between the two protective assemblies.

A gaseous fuel injector 200 comprising a gas delivery chamber 48 and housing body 22 defining a working fluid chamber 34 and needle guide bore 24. A valve needle 212 is movable within the guide bore,

The invention belongs to the technical field of electronic accessory production, and particularly relates to a cam cutting and pin inserting mechanism which comprises a pin placing component, a pin inserting component and a pin inserting component. A needle guiding component is arranged at the front part of the rear support frame; and the pin rotating component is arranged at the front part of the pin guiding component and is used for guiding the bottom end of the metal contact pin to slide downwards. According to the device, a metal contact pin is firstly inserted into a guide sliding plate, then the metal contact pin at the upper part of the guide sliding plate is cut off, and the cut-off metal contact pin is transferred to the bottom end of a pressing push rod by sliding the guide sliding plate; therefore, when the push rod is pressed downwards to push the cut-off metal pin downwards, the metal pin can be smoothly inserted into the preset point position of the pin plate, and the problem that the inserted pin head is loosened on the pin plate or penetrates through the pin plate to cause damage to a device is avoided.

This invention discloses a robotic multi-needle puncture trajectory planning method for prostate cancer. By acquiring two-dimensional ultrasound images and spatial positioning data of the prostate, the coordinates of three-dimensional feature points of obstacles such as blood vessels and the pubic bone are obtained. The tumor contour is extracted using a combination of manual delineation and an improved target detection algorithm to complete three-dimensional reconstruction of the prostate and tumor, as well as implicit function modeling of obstacles, constructing a personalized three-dimensional surgical environment. This method employs a progressive planning strategy, solving for a collision-free reachable workspace for each needle, optimizing the needle insertion trajectory with the shortest path and minimal trauma as objectives, and establishing a tissue deformation compensation model to correct target point offset. Simultaneously, the implanted puncture needles are used as dynamic obstacle iterative update constraints to achieve cyclical optimization of the multi-needle trajectory. Finally, a six-degree-of-freedom robotic arm equipped with a needle guide device completes precise positioning and puncture assistance, achieving orderly, collision-free multi-needle implantation. This invention effectively improves puncture positioning accuracy and surgical safety, reduces manual intervention, and provides an automated, high-precision trajectory planning solution for prostate particle implantation.

The application provides a needle guide winding device, which is configured to wind a wire body around an electrode. The needle guide winding device comprises a needle guide module, a base, a rotating module and a guide module. A needle body part of the needle guide module is arranged along a first axial direction and comprises a front end and a rear end opposite to each other. The rotating module is pivotally arranged between the base and a needle rotating part of the needle guide module, and is configured to drive the needle guide module to swing up and down by an angle along a longitudinal direction relative to the base with the second axial direction as the center, wherein the second axial direction is perpendicular to the first axial direction. The guide module is connected to the rear end of the needle body part and is configured to drive the needle body part to slide along the first axial direction, wherein when the rotating module drives the needle guide module to swing by the angle, the guide module drives the front end of the needle body part to slide along the first axial direction relative to the second axial direction by a displacement distance, and the front end is maintained at a fixed transverse displacement amount.

This invention discloses an electrostimulation rehabilitation therapy device, including a fixed base with fixing straps on both sides. The fixed base has a mounting ring on each side, and an electrostimulation device is mounted on the mounting ring. The electrostimulation device includes a mounting frame with a housing mounted on it. The housing has a receiving cavity with a slide rail inside. A needle holder is mounted on the slide rail, and the needle holder is driven to move by a driving mechanism. A needle body is mounted on the needle holder. An opening is formed on the bottom surface of the housing, and a guide head is installed at the opening. The guide head has a needle guide hole for the needle body to enter and exit. An electroacupuncture clamp assembly is located inside the housing. This invention first fixes the fixed base to the acupoint, then installs the electrostimulation device. Automatic needle insertion is achieved through the driving mechanism, and the electroacupuncture clamp assembly on both sides is driven by an electromagnet to clamp the needle body. The electroacupuncture device delivers an electrostimulation signal, improving needle insertion accuracy and electrical connection stability.

A trocar comprising a cannula and an obturator; wherein the cannula includes a head and a shaft, wherein the shaft extends from the head, and the head has a greater diameter than the shaft; the cannula defines a working channel which is open at both ends; the working channel defines a working channel axis; a pair of opposed needle guide elements are carried by an exterior portion of the cannula, wherein each needle guide element defines therethrough a needle guide channel, and wherein each needle guide channel defines a guide channel axis that is inclined with respect to the working channel axis; each needle guide channel axis is aligned with a needle inlet port defined by a first portion of the cannula shaft, and a needle outlet port which is defined by a second portion of the cannula shaft; and the second portion of the cannula shaft is located distally of the first portion of the cannula shaft.

A device and system for and methods of using an ultrasound probe housing containing ultrasound probes configured to produce images inside the body of a patient for procedures requiring needle or probe insertion. The ultrasound probe housing can be configured with a guide channel cut-out or aperture between the ambient side and body side of a patient. A needle guide assembly may be pivotally connected internal to the guide channel cut-out or aperture of the ultrasound probe housing at a pivot point such that during use the needle enters the patient through the needle guide assembly within the ultrasound probe housing so that the needle can be visualized by the ultrasonic probes in real time. The ultrasound probe housing may also provide an adhesion or suction quality to the body side of the device to facilitate aspects of the invention.

The invention provides a puncture device of a puncture needle, which comprises a base, a needle guide device, a locking mechanism and an adjusting mechanism, the needle guide device is arranged at the lower end of the base and is movably connected with the base, and the locking mechanism is arranged on the base and is used for locking or unlocking the needle guide device; the needle guiding device comprises a first needle guiding base and a second needle guiding base which are oppositely arranged, needle guiding channels allowing the puncture needle to pass through are formed in the lower end of the first needle guiding base and the lower end of the second needle guiding base, and the first needle guiding base and the second needle guiding base rotate in the opposite directions and can clamp or release the puncture needle. And the size of the guide pin channel is adjusted by controlling the opposite rotation angles of the guide pin seat I and the guide pin seat II. The needle guiding device is simple in structure and convenient to operate, the size of the needle guiding channel can be automatically adjusted, the puncture needle can be rapidly and stably released corresponding to the surgical operation states of puncture sampling, puncture and needle withdrawing, rapid disassembly and assembly of the needle guiding device can be achieved, and the surgical efficiency is improved.

The utility model discloses a quartz capillary tube sealing device, and relates to the technical field of analysis instrument sealing. The device comprises an ethylene propylene diene monomer sealing block, a compression mechanism sleeved outside the ethylene propylene diene monomer sealing block and a needle guide piece. And the compression mechanism consists of a sealing seat, a nylon clamping jaw sleeved outside the sealing block and a sleeve in threaded connection with the sealing seat. The device is specially designed for a vacuumizing process; a channel is pre-formed through the needle guide piece, so that nondestructive insertion and extraction of the capillary tube are realized; the nylon clamping jaw is pressed by screwing the sleeve, so that the sealing block is radially deformed to realize vacuum sealing; the device can be flexibly placed as an independent tool. The utility model has the core effects that the problems that the capillary tube is easily damaged, the operation is complicated and the sealing is unreliable in the traditional temporary sealing method are solved, and a special tool which can quickly finish sealing and unsealing in the vacuum preparation stage, is simple and convenient to operate and can effectively protect the capillary tube is provided.

A baler includes a pressing channel where crop bales are conveyable along a pressing axis, and a binding arrangement. The binding arrangement has a needle swing, a holding unit, a deflection drive, and a deflection device which has a detection element. The needle swing has binding needles arranged offset to each other. Each binding needle guides a respective binding element strand upwards through the pressing channel. The holding unit holds a holding section of the binding element strand which is guided upwards. The deflection drive adjusts the deflection device. The detection element moves relative to the holding unit and partially moves along the pressing axis. At least one binding element strand is detectable by the detecting element, and is deflected through the pressing channel to produce a binding element loop. The binding element loop changes direction relative to the pressing axis at the at least one detection element.

This invention provides a needle guide replacement unit and a liquid dispensing device including the same. The replacement unit includes a base and a limiting member; wherein, the base has a first base chamber and a second base chamber arranged sequentially from the inside to the outside; the limiting member is disposed in the second base chamber and has a hollow portion to allow the needle guide to pass through and be fixed in the first base chamber; the limiting member is also adapted to rotate to misalign the hollow portion with the needle guide to restrict the needle guide from passing through the hollow portion and leaving the first base chamber, and to rotate in the opposite direction to align the hollow portion with the needle guide so that the needle guide can pass through the hollow portion and leave the first base chamber. Using this invention, not only can the installation and removal of the needle guide be flexibly controlled, thus facilitating needle replacement, but the structure is also simple and easy to operate.

A needle guiding device for imaging-guided procedures features sensors to monitor the needle's attitude and a calibration tool fixed to the imaging machine for alignment. The device offers customizable feedback, including visual, audible, and haptic alerts, to maintain the planned insertion trajectory. The calibration tool, which may include reference surfaces that are perpendicular, non-perpendicular, or feature a groove, ensures accurate alignment. The device can log procedural data and is compatible with both single-use and reusable configurations. It is designed for use with one needle at a time, with options to use multiple devices for multiple needles or sequentially against different needles.

The utility model discloses a triangular structure for a circular knitting machine. The triangular structure comprises a triangular body and a triangular seat rod for limiting the triangular body, the cam is characterized in that a needle guiding mechanism is arranged in the cam body, and the needle guiding mechanism comprises a needle inlet end groove, a needle guiding end groove and a needle outlet end groove; a matching mechanism is arranged outside the triangular body, and the matching mechanism comprises a matching raised head; wherein a positioning mechanism is arranged in the triangular seat rod, the positioning mechanism comprises an adjusting strip rod, and positioning groove holes are formed in the adjusting strip rod at equal intervals. According to the triangular structure for the circular knitting machine, the triangular bodies are installed on the front face of the adjusting strip rod through bolts, the triangular bodies are driven by the adjusting strip rod to conduct lifting adjustment in the triangular seat rod, and the adjacent triangular bodies are locked through the matching protruding heads, the matching grooves and the inserting pin columns, so that the moving stability of a knitting needle is improved; and the abrasion of the triangular body is reduced.

A position-adjustable three-dimensional distribution pin header structure for honey-processed red ginseng manufacturing belongs to the technical field of honey-processed red ginseng manufacturing and comprises a hole pricking machine and a conveying belt, and the conveying belt is mounted at the upper end of the hole pricking machine; when the hole pricking machine is used for pricking holes in red ginseng, the hole pricking needles are inserted into the corresponding needle guide holes in the fixing plate according to the distance of holes to be pricked in the red ginseng, then the fixing cover is fixed to the upper end of the fixing plate, the needle arranging rod and the hole pricking needles are fixed at the same time, and then the red ginseng to be pricked is placed on the left side of a conveying belt at the upper end of the hole pricking machine. After the conveying belt is driven to rotate and the red ginseng is driven to move to the position below the needle threading plate, the conveying belt is not driven to rotate any more, then an air cylinder in the pricking machine is started to drive a moving rod to move downwards, meanwhile, a fixing plate moves downwards, and pricking needles are driven to move downwards together to penetrate through needle threading holes in the needle threading plate and then move downwards to be pricked into the red ginseng.

The invention relates to a colorant nozzle assembly (1) for a colorant jet device (101) for generating a colorant spray jet, wherein the colorant nozzle assembly (1) comprises a needle (3), a nozzle body (6) and a seal, wherein the nozzle body (6) comprises a nozzle opening, a colorant feed inlet and a needle guide, wherein the seal divides an interior space (9) enclosed by the nozzle body (6) into a front chamber and a colorant chamber (11), and wherein the seal is fixedly connected with the needle (3). In this case it is provided that the seal is designed as a membrane seal and is fixedly connected with the nozzle body (6), and that the interior space comprises a widening towards the needle guide.

The utility model relates to hot runner needle valve technical field discloses a kind of cylindrical valve needle guide ring, including nozzle sleeve, the inner wall sliding connection of nozzle sleeve has valve needle guide ring, the inner wall sliding connection of valve needle guide ring has valve needle, the inner wall of nozzle sleeve is equipped with nozzle sleeve kit, the outer wall of nozzle sleeve kit is equipped with connecting piece, the outer wall of valve needle is provided with multiple stabilizing blocks one, the inner wall of nozzle sleeve is provided with multiple stabilizing blocks two, the inner wall of valve needle guide ring is equipped with multiple stabilizing grooves one, the outer wall of valve needle guide ring is equipped with multiple stabilizing grooves two, the top of valve needle guide ring is equipped with cleaning assembly, the inner wall of valve needle guide ring is provided with lubricating assembly, in the utility model, four stabilizing grooves one are set in valve needle guide ring inner wall, four valve needle guide rings are set in valve needle guide ring outer wall, let stabilizing block one and stabilizing block two respectively be clamped in stabilizing groove one and stabilizing groove two inner wall, reach the effect that valve needle is stably slid up and down.

An ocular access instrument (20) includes an attachment assembly (32) configured to engage a sclera of an eye, and an actuator assembly (34) configured to bear against the sclera. When the attachment assembly engages the sclera, movement of the actuator assembly inwardly against the eye displaces the choroid from the sclera, thereby creating an enlarged suprachoroidal space. The ocular access instrument may also include a needle guide (40) configured to receive the needle and guide the needle into the enlarged suprachoroidal space.

The invention relates to a needle guide designed for use in transperineal prostate biopsy performed in urology and radiology, which enables the biopsy needle to be guided to the desired region of the prostate. The needle guide (1) according to the invention comprises, a body (2) attached to a probe and comprising a vertical body channel (3) perpendicular to the axis of the probe and movement direction of the needle (11), a disc (5) having an extension piece (6) on one surface extending into the body channel (3) or a groove (4), and on the other surface at least one disc channel (7) through which the needle (11) will be inserted, a disc cap (9) provided on the surface of the disc (5) having the cap protrusions (10), which closes over the disc channels (7) by opening and closing, disc cap projections (10) on the surface of the disc cap (9) facing the disc channels (7) and corresponding to the disc channels (7).

The invention relates to a needle support structure and a needle guide bracket (100), and belongs to the technical field of biopsy equipment. The needle support structure comprises an angle control plate (3), a needle grooved plate (4), and a locking device, the support grooved plate (4) including a plurality of semi-open needle feeding channels (411). The angle control plate (3) is fitted to the needle grooved plate (4) to form a closed needle feeding channel (411), the first end of the needle feeding channel (411) being a needle introduction port (412), and the second end being a needle release port (413). The locking device comprises a first clamping part and a second clamping part, the first clamping part being rotatably connected to the angle control plate (3), and the second clamping part being fixedly connected to the needle grooved plate (4). The first clamping part comprises a driving hand position, which is located at the needle feeding end of the angle control plate (3); by pulling the driving hand position, the first clamping part can move between a first position and a second position thereby enabling the clamping and unclamping of the first clamping part and the second clamping part. The present invention allows as much operating space as possible for biopsy and separation of the needle support structure.

1. The name of the design product: open needle guide plate. 2. The use of the design product: used in ultrasound intervention surgery, matched with puncture support or ultrasound probe, guided puncture and limited puncture needle in ultrasound image plane. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A fuel injector (100, 200) comprises a gas delivery chamber (48) defining an opening (20) for delivering the gaseous fuel therethrough to an internal combustion engine; a housing body (22) defining a working fluid chamber (34) and a needle guide bore (24) extending from the working fluid chamber (34) to the gas delivery chamber (48); a valve needle (112, 212) movable within the needle guide bore (24) along a valve needle axis (112', 212') to open and close the opening (20) defined by the gas delivery chamber (48); a needle control valve (30) for controlling movement of the valve needle (112, 212) by controlling a pressure of a working fluid in the working fluid chamber (34); an annular groove (52, 502) defined around the valve needle (112, 212); and an annular seal member (60, 600) arranged at least partially within the annular groove (52, 502) configured to provide a seal between an outer surface (113, 213) of the valve needle (112, 212) and an internal surface (24a) of the needle guide bore (24). The seal member (60, 600) comprises a passage (62, 602) extending therethrough and is movable axially within the annular groove (24) from a first position to a second position when the pressure of working fuel in the working fluid chamber (48) is less than the pressure of the gaseous fuel in the gas delivery chamber (48). In the first position, the passage (62, 602) is blocked to prevent the working fluid from flowing through the passage (62, 602) of the seal member (60, 600) into the gas delivery chamber (48) and in the second position, the passage (62, 602) is unblocked to allow the gaseous fuel to leak through the passage (62, 602) of the seal member (60, 600) into the working fluid chamber (34).

An external needle guide can include a skin contact portion for attaching to skin of a patient and a needle guide portion for guiding a needle into a vessel of the patient. The external needle guide provides an accurate placement of a needle into the vessel (e.g., a good puncture), which reduces the failures of the vessel. Furthermore, because of the accurate placement of the needles and the ease of placement of the external needle guide, a patient and / or another person can insert the needles into the vessel with one hand. An external needle guide can also include an anchor portion that secures a needle to the external needle guide, preventing unwanted movement of the needle and damage to the vessel.

The utility model discloses a kind of needle guiding devices that can be angle fine tuning belong to femoral neck kirschner wire needle insertion technical field, including handle holder, the top of handle holder is fixedly installed with mounting column, the top of mounting column is fixedly installed with mounting seat, the upper surface of mounting seat is fixedly installed with fixed guide, the side of mounting seat is fixedly installed with hollow connecting rod, the inside of hollow connecting rod is slidably installed with solid connecting rod;By setting fixed guide and movable guide cooperation, overall structure is pure mechanical structure cooperation, the neck angle of femoral neck kirschner wire can be accurately adjusted, the angle of inclination, improve the angle accuracy of femoral neck kirschner wire, reduce the number of repeated needle insertion, avoid the risk of operation time extension, femoral neck internal mechanical structure drop due to repeated needle insertion, improve surgical efficacy, also same can reduce patient and operator C arm machine perspective number, reduce radiation damage.