31 results about "Tube closure" patented technology

The present invention relates to a tube closure assembly. The assembly includes a tube head that includes a neck and a closure liner sealing said neck, and a cap that includes a punch provided with at least one tooth. The one or more teeth are configured to peripherally cut said closure liner. The cap is configured to transition from an open flush position, in which the one or more teeth are flush with said closure liner, to a perforation position, in which the one or more teeth perforate the closure liner, then from the perforation position to an end-of-travel position allowing partial cutting of the closure liner, the transition from the perforation position to the end-of-travel position being carried out with an angular rotational range below 360°.

A closure assembly is provided for a specimen collection container. The closure assembly includes a bottom ring and top ring assembly. The bottom ring is removably attachable to the open end of the container. The top ring assembly, which is removably attached to the bottom ring, includes a mounting ring and a pierceable, resealable septum that closes the bottom ring and permits pierceable instrument access therethrough. The container interior can also be accessed by the removal of the bottom ring from the open end of the container or by the removal of the top assembly from the bottom ring.

A device for doping, deposition or oxidation of semiconductor material at low pressure in a process tube, is provided with a tube closure as well as devices for supplying and discharging process gases and for generating a negative pressure in the process tube. A closure of the process chamber that is gas tight with respect to the process gases and the vacuum tight seal of the end of the tube closure are spatially separated from each other in relation to the atmosphere and are arranged on a same side of the process tube in such a manner that a bottom of a stopper, sealing the process chamber, rests against a sealing rim of the process tube and the tube closure end is sealed vacuum tight by a collar, which is attached to the process tube and against which a door rests sealingly.

A system, method and apparatus for remotely installing a flange cover assembly on a fuel transfer tube fixed flange in a containment pit in a nuclear power plant is presented. In one example, the flange cover assembly includes J-bolt spring assemblies in which the feet of the J-bolt are rotated between a clamping and non-clamping orientation to engage with the rear face of the fixed flange. A tool frame is lowered into the containment pit to engage with the flange cover assembly to compress the J-bolt springs and extend the J-bolt foot toward and away from the flange cover. Dual acting cylinders move a spring compression frame on the frame tool to compress and relax the J-bolt spring assemblies.

A closure having enhanced oxygen barrier capabilities includes a cap body formed from a first material, the cap body defining a cavity therethrough, a stopper formed from a second material, the second material being different than the first material and disposed within the cavity, and a barrier layer formed from a third material, the third material being different than at least the second material and associated with at least one of the cap body and the stopper. A container assembly including a closure and a method of forming the closure is also provided.

The embodiment of the invention discloses a double-airbag anti-traction protection type catheter which comprises a hose, a double-airbag set and a pressure sensor, the opening end of the hose is connected with a urine bag, a Y-shaped branch pipe is formed on a catheter body at the opening end of the hose, and the double-airbag set comprises a first balloon and a second balloon which are arranged side by side along the hose at the closed end. The second balloon is communicated with a water injection end of the branch pipe in the hose, the first balloon and the second balloon are unidirectionally communicated in the hose, so that air can flow from the second balloon to the first balloon, and the pressure sensor is installed on the airbag end of the branch pipe. The first balloon and the second balloon are unidirectionally communicated with the interior of the pressure sensor respectively, so that gas can flow from the first balloon or the second balloon to the interior of the pressure sensor, and the pressure sensor displays the pressure state of the balloons. According to the invention, injuries caused by indwelledcatheter can be reduced, and can provide time for medical staff to discover and handle the phenomena of catheter traction as soon as possible.

The invention discloses a sampling tube for blood detection, which comprises a sampling tube body, a sampling tube sealing cover, a base plug, an elastic elastic thread and a piston; the sampling tube body is a transparent straight tube structure, and the sampling tube sealing cover is sealed and fixed The cover is set on one port of the sampling tube body; the base plug is set on the other port of the sampling tube body; the piston is set on the inner wall of the sampling tube body, and the piston and the sealing cover of the sampling tube A negative pressure chamber is formed between them; one end of the tightened elastic elastic line is connected to the base plug, and the other end is connected to the piston; the device of the present invention has a simple structure and can be judged according to the position of the piston before blood collection Whether the blood collection tube has deteriorated and leaked can effectively reduce the accident rate of blood collection.

The invention provides a visual drainage tube, which relates to the field of minimally invasive medical instruments, and comprises an inner tube which is characterized in that an endoscope can move inthe inner tube, and an outer tube, wherein the inner tube is sleeved with the outer tube, the inner tube and the endoscope can move in the outer tube; the inner tube is in clearance fit with the outer tube; the inner tube and the outer tube are transparent and visible, and the tube walls are uniform in thickness; one end of the inner tube is closed, and the other end of the inner tube is providedwith an opening for the endoscope to enter; openings are formed in the two ends of the outer pipe; the end, close to the closed end of the inner pipe, of the outer pipe extends towards the inner pipeand is tightly attached to the outer wall of the inner pipe, and the end, close to the opening of the inner pipe, of the outer pipe is detachably connected with the inner pipe. The visual drainage tube has the advantages that the visual drainage tube is used in cooperation with the endoscope, the hematoma position can be accurately positioned, drainage is conducted at the same time, injuries caused by multiple times of insertion are reduced, meanwhile, the drainage situation can be observed in time, and the drainage effect is improved.

A dispensing closure is provided for attachment to the discharge port of a standard circular-headed tube. The closure comprises a skirt with a circular cross-sectional shape at its base that merges gradually to an oval-shaped face at its top. When the closure is attached to a standard circular-headed tube, with the long axis of the oval face oriented substantially parallel to the straight crimped edge of the filled tube, the combination of closure and tube appears to the ordinary observer to have a continuously oval cross-sectional shape throughout the length of the combination. The dispensing closure can be manufactured using typical injection-molding techniques, and may be adapted for use with dispensing mechanisms and attachment means known in the personal care products industry.

The invention discloses a self-closing faucet based on the action of gravity, which comprises a vertically distributed upright pipe body, a valve plate pipe horizontally distributed on the side of the upright pipe body, a valve plate and a valve stem installed in the valve plate pipe, and a valve plate installed on the valve plate. The gravity opening and closing rod on the outside of the pipe, the upper end of the upright pipe body communicates with the tap water pipeline, the inner end of the valve plate tube is located in the middle of the upright pipe body and communicates with the upright pipe body through the water outlet on the valve side, and the valve below the water outlet on the valve side There is a water outlet under the valve on the wall of the pipe, and the water outlet on the side of the valve and the water outlet under the valve are the only connection channel between the upper half and the lower half of the upright pipe body. One end of the valve stem is connected to the valve plate through a pin shaft. The other end is connected with the gravity opening and closing rod through a pin shaft, the upper end of the gravity opening and closing rod is connected with the valve plate pipe through a pin shaft, and the lower end of the gravity opening and closing rod extends 3 to 6 cm from the bottom end of the vertical pipe body. The invention is used to solve the problem of wasting water resources by faucets in the prior art and realize the purpose of saving water resources.

The invention discloses a sampler for biotechnology separation, which comprises a sampling cylinder and a sample tube. A sampling probe is fixedly installed at the bottom of the sampling cylinder, and an inlet funnel is arranged on the top of the sampling cylinder. A buffer, and a sampling inlet pipe and a sampling outlet pipe are respectively fixedly installed on both sides of the buffer, and a pull rod is arranged inside the sampling cylinder, and the top of the pull rod is provided with an embedding protrusion, and the top of the sample tube is provided with an embedding groove, The outer surface of the embedding protrusion and the inner surface of the embedding groove are engraved with mutually engaging threads, the outer surface of the sampling probe is provided with mounting threads, a sampling room is arranged inside the sampling probe, and a closing plug is installed at the bottom of the sample tube , and a receiving baffle is fixedly installed at the connection between the inside of the sampling probe and the sampling cylinder to realize periodic and continuous sampling at a fixed point and timing, and retain the state of the sample when it is collected without destroying the original properties of the sample and the product state during the separation process .

The invention provides a sampling device, which comprises an inner pipe, the inner pipe is provided with an inner pipe closed end, an inner pipe open end and a longitudinally extending inner pipe body, and one side of the inner pipe body is provided with a sampling port; an outer pipe which is provided with an outer pipe closed end, an outer pipe open end and a longitudinally-extending outer pipebody, and the inner pipe is contained in the outer pipe body; a cover body which comprises a cover main body and a sealing bolt connected with the bottom end of the cover main body; wherein an annulargroove is formed in the joint of the cover body and the sealing bolt, and the outer side wall of the annular groove is provided with an arc face which makes contact with the outer side wall of the open end of the outer pipe and extends outwards. According to the sampling device, the cambered surface contacted with the outer pipe is arranged at the annular groove of the cover body, so that the contact force of the cover body and the pipe body is uniformly dispersed on the cambered surface when the cover body is opened towards the outer side and taken down, and the stress generated in the coverbody is reduced; and the cover body can be opened towards the outer side only by slightly exerting force, so that liquid in the inner pipe is prevented from shaking and splashing out.

The present invention and the technical field of MVR evaporators, in particular, relate to a nozzle sealing device of an MVR evaporator. Including a rack on the sealing plate to solve the problem of incomplete closure of the valve port during the sealing process; a slideway is set on the support rod to solve the problem of movement of the sealing plate during use; the transmission structure uses gears for transmission to solve the problem of incomplete closure during use. The problem of transmission efficiency; 4 gears are used in the gear arrangement to solve the problem of the rotation direction of the gears; the rectangular block is provided with a through hole and a rectangular through groove to solve the fixing of the water outlet position and the sealing plate; the motor is installed on the bracket to solve the power of the equipment Source; the sealing plate is set in a circular shape to solve the insufficient sealing during use.

A sample collection device includes a tube, a closure and a partitioning member. The tube includes an opening and is used to receive a sampling swab. The closure is engaged with the tube for enclosing the opening. The partitioning member is disposed in the tube and includes a blocking portion and a position-limiting portion. The blocking portion is disposed close to the opening and covers a portion of the opening so as to leave another uncovered portion as an entrance for passing the sampling swab therethrough. The position-limiting portion is connected with the blocking portion and extended into the tube, so as to limit the sampling swab in a space corresponding to the entrance inside the tube after the sampling swab passes through the entrance.