Abstract: A liquid mixing and injecting device is provided which includes an upper branch tube, a chamber part and a rubber plug including a slit formed through the body of the rubber plug. A lid member is attached to an open end of the upper branch tube. The lid includes an opening part and a generally cylindrical member. The upper branch tube is occluded by the rubber plug. A male luer part of a syringe can be inserted into the slit to access the chamber part. A rubber plug receiving part is provided for controlling the shape of the lower end part of the rubber plug body when it is deformed to avoid forming a gap where air can accumulate within the flow path. The rubber plug is fixed by fixing an upper fixing piece of the rubber plug to the generally cylindrical member and by fixing a lower fixing piece between the opening part and the generally cylindrical member.

Abstract: A liquid coinfusion unit and processes are provided inside which liquid and air are unlikely to accumulate which consists of a chamber part, a main upstream branch pipe, a downstream branch pipe, a supplementary upstream branch pipe, and a stopcock which can allow communication/block the area between the chamber part and main upstream branch pipe, and the area between the chamber part and downstream branch pipe, respectively. The portion of the liquid flow channel inside the chamber part which runs from the main upstream branch pipe towards the downstream branch pipe consists of a bypass flow channel which extends from the direction of advance of the liquid from the main upstream branch pipe towards the chamber part to one side which is substantially orthogonal to the direction of advance, after which it extends in the direction of advance of the liquid from the chamber part towards the downstream branch pipe.

Abstract: A puncturing needle assisting tool. A first rotating portion 122 rotates from an open to a closed position, around a first hinge connecting portion 126 as the rotating center, to the surface side of an assisting tool main unit 112 to close the surface opening of a first guide groove 116a. A second rotating portion 124 rotates from an open position to a closed position, around a second hinge connecting portion 128 as the rotating center, to the surface side of an assisting tool main unit 112 to close the surface openings of second guide grooves 116b through 116d. The puncturing needles move along the guide grooves to puncture into the body in a proper state, without shifting. Locking protrusions 134, 130 maintain the closed positions of the first and second rotating portions 122, 124 respectively.

Abstract: A medical suturing tool 10 is composed of an insertion puncture needle 13 having an insertion hole 13a, a retrieval puncture needle 14 disposed in parallel with the insertion puncture needle 13, a lock part 15, and a surgical suture 16. A vertically elongated opening 18 is formed on the side surface of the insertion puncture needle 13, and an engaging groove 19 including a wide upper portion 19a and a narrow lower portion 19b on the side surface of the retrieval puncture needle 14 at a position slightly lower than the portion opposing to the vertically elongated opening 18. The lock part 15 is composed of a spherical portion 15a which can pass through a wide upper portion 18a and cannot pass through a narrow lower portion 18b and a rod-shaped portion 15b which can pass through the narrow lower portion 18b.

Abstract: A fistula catheter with a simple structure and with which it is possible to suppress irritation of the wall of the alimentary canal, and a fistula catheter set. A fistula catheter ‘A’ which is fitted in fistulae formed in a patient's abdominal wall and stomach wall consists of an external retention part which is disposed on the abdominal wall surface side of the fistula, and a tubular part. The tubular part is arranged such that the base end part thereof links with the external retention part, and the tip end part thereof extends from the fistulae into the stomach. The tubular part is formed as a flexible helix. Furthermore, the tip end part of the tubular part projects to the inner periphery of the helix. In addition, the angle between the central axis ‘a’ of the external retention part and the central axis ‘b’ of the helical tubular part is set to be smaller than a right angle.

Abstract: A connection structure is provided having a female thread formed on the inner peripheral surface of a lock ring in a male connector engaging a male thread on the outer peripheral surface of a female connector when the male connector and the female connector are screwed to each other. Further, protrusion strips are formed on the rear side portion of the male thread on the outer peripheral surface of the female connector, and the notches that can engage with the protrusion strips are set on the tip portion of the lock ring. As a result, when the male thread and the female thread are screwed to each other, the screwed state is appropriate when the protrusion strips and notches are engaged with each other.

Abstract: A cap for a connector which can fill a male luer connector with only a fluid, such as a medicinal fluid, without leaving gas in the male luer connector. The cap for the connector comprises the cap body, the sliding part movable relative to the cap body, and the air filter placed at the tip end opening of the gas flow path forming part included in the sliding part. Also, the cap body comprises the cylindrical fitting part for liquid tightly fitting with the tip end opening of the male luer connector, and the cylindrical guide provided with the liquid outlet on its peripheral surface. Further, the liquid outlet can be opened or closed by shifting the gas flow path forming part within the cylindrical guide. Moreover, the cylindrical guide is placed within the recess portion to be guided between the gas flow path forming part and the containing wall.

Abstract: A connector has a connection port closed by a sealing member. The connection port is attached to a first body portion which in turn is connected to a second body portion by an elastic bellows. When a Luer connector is withdrawn from the port, the bellows first extends and then retracts creating an overpressure within the connector.

Abstract: The present invention provides an organopexy tool (10, 40) comprising a locking part (11, 41) and suture thread (12, 42). Locking part (11, 41) is made of a rod-shaped part (13, 14), and the coil spring (14) that covers the rod-shaped part (13, 43) and is affixed to one end (13a, 43a) of rod-shaped part (13, 43), and suture thread (12, 42) is connected to the middle of rod-shaped part (13, 43) through the inside of coil spring (14) from one end (13b, 43b) of rod-shaped part (13, 43). Insertion tool (20, 50) has a puncture needle (21) for insertion that can house the locking part (11, 41) and a tubular push-out part (22) that is inserted into puncture needle (21) to push locking part (11, 41) out of the tip (25). Removal tool (30, 60) is used to remove the organopexy tool (10, 40), the tool (30) has a cylindrical part (32, 62) and grip part (33), and a spiral-shaped notch part (34a) is formed from tip (32a) of cylindrical part (32, 62) toward the portion at the base end.

Abstract: Organopexy tool set (S) is comprised of suturing tool (30) comprised of rod-shaped securing section (31) and suture (32), puncture needle (10) for insertion that accommodates plural securing sections with the ends of sutures protruding to the outside, and extruding device (20) that is arranged at the base end of puncture needle for insertion and can extrude the securing section accommodated in puncture needle for insertion from an opening at the tip of puncture needle for insertion. Also, plural suture exiting holes (24) are formed at intervals around the axis on extruding device, and the ends of sutures connected to plural securing sections protrude from different suture exiting holes. In addition, extruding device (20) is equipped with extruding rod (22), friction member (29), attachment/detachment pressing section (23), and coil spring (28).

Abstract: The present invention provides a closable male luer connector (101) in which an inner portion (121) within the spigot (111) of the connector is movable from a sealing position to an open position on connection of the connector to a female luer connector (10). The movement of the inner portion may be caused by, for example, action of the female connector on a projecting arm (122b) or a screw thread arrangement.

Abstract: An organ fixing equipment includes a securing part formed by bundling a suturing thread into a bar, and a fixing part composed of the suturing thread forming the securing part and a continuous suturing thread. By pulling the fixing part relative to the securing part with a force of not less than a predetermined magnitude, the suturing thread forming the securing part can be unraveled. A set of organ fixing equipment is provided with an insertion equipment, for inserting the organ fixing equipment and taking-out equipment for taking out the organ fixing equipment from the patient body.

Abstract: A locking connector consists of a male luer part, a connecting support part provided at the rear end of the male luer part of which is connected to a tube, a lock ring supported on the connecting support part in a state in which it is prevented from being withdrawn from the tip end of the male luer part, guide protrusions extending from the tip end side to the rear end side of the connecting support part while steadily curving in the axial direction of the connecting support part and formed on the outer peripheral surface of the connecting support part, and recess parts allowing the entry of the guide protrusions formed on the inner peripheral surface of the lock ring, wherein when the guide protrusions are positioned inside the recess parts, the lock ring can be moved to the tube side from the connecting support part.

Abstract: A connecting structure for a connector in which a male-side connector and a merging pipe are connected by screwing together a female screw having protrusions formed on the inner peripheral surface of a lock ring and a male screw comprising protrusions formed on the outer peripheral surface of the merging pipe is provided with engaging recess parts on the female screw and engaging projections on the outer peripheral surface of the merging pipe which are able to engage with the engaging recess parts whereby when the male screw and the female screw are screwed together to reach an appropriate screwed state, the engaging protrusions engage with the engaging recess parts.

Abstract: A liquid coinjector is disclosed which includes a main body having an upstream pipe defining an inlet flow channel in fluid communication with a chamber portion of the body, a downstream pipe defining an outlet flow channel in fluid communication with the chamber portion, and a merging pipe in fluid communication with the chamber portion. A flexible tube supported is in the inlet flow channel of the upstream pipe. The flexible tube facilitates fluid flow from the upstream pipe to the chamber portion. At least one pressing part is positioned adjacent to the flexible tube. The at least one pressing part is movable from a first position to a second position to compress the flexible tube and close the inlet flow channel.

Abstract: A medical stopcock which allows easier switching operation of plural branch-tubes. The main body of the stopcock comprises a chamber part with a nearly spherical inner surface, and an upstream branch-tube, a downstream branch-tube and a merge-branch-tube all extending from the chamber part. A valve body of the stopcock comprises a nearly spherical valve main body and a rod-shaped operating part with a guide hole linking the inner surface of the chamber part to the outside. In operation, the rod-shaped operating part is moved along the guide hole through the use of the horizontal flow passages and the vertical flow passage to allow the predetermined branch-tubes out of the upstream branch-tube, the downstream branch-tube and the merge-branch-tube to communicate with one another or to shut-off the communication.

Abstract: Certain embodiments of the present invention include a male luer connector having a valve arrangement for keeping a passage that extends through the male luer connector closed when the male luer connector is not attached to a corresponding female luer connector. This passage of the male luer connector may opened by connecting the male luer connector to a female luer connector. The valve arrangement of the male luer connector may include a movable sealing element arranged around a central fluid conduit. In some embodiments, the male luer connector may include a filter that is permeable to gas, but substantially impermeable to liquid, thus allowing gas to be purged from the male luer connector while substantially preventing liquid from leaking from the connector at least when the male luer connector is not connected to a female luer connector.

Abstract: The present invention provides an organ fixture having a rod shaped anchoring portion formed by bundling a suturing thread, and a fixing portion made of a suturing thread continuous with the suturing thread of the anchoring portion. By pulling the fixing portion with respect to the anchoring portion with a force larger than a prescribed level, the suturing thread forming the anchoring portion can be loosened. Additionally, the invention provides a type of organ fixture set which pierces and is inserted into the body of the patient while a portion of an anchoring portion and a fixing portion of the organ fixture is accommodated in it, and it can be pulled from the body of the patient while the anchoring portion is left within the stomach wall. Further, the organ fixture set has a unit for removing the organ fixture from the body of the patient.

Abstract: An indwelling needle for reducing the deterioration of the valve by the pressure force of the elastic member. A connector part is provided so as to be moveable within the outer needle body connected to the basal portion of the cannula and provided with the space communicating with the lumen of the cannula therein. Also, within the outer needle body, the valve including the opening and closing aperture through which the tip end side portion of the connector part is liquid tightly penetrated to communicate the lumen of the cannula with the flow path of the connector part as well as the space of the front side portion and the rear side portion of the outer needle body are occluded by closing when the tip end side portion of the connector part is not penetrated therethrough.

Abstract: A liquid co-injection apparatus comprising a high-pressure resistant rubber plug capable of obstructing a slit when the chamber is under a high hydraulic pressure. The main body of the liquid co-injection apparatus comprises a chamber part, a downstream branch-tube extending from the chamber part in different directions, an upstream branch-tube, and a connection opening with an attached lid. A rubber plug is attached to the inside of the lid to allow obstruction of the lid when the slit of the rubber plug is closed, and to allow communication between the insides of the chamber part and the connecting tube when the connecting tube is inserted into the slit. Moreover, a rib is provided on the outer peripheral surface of the rubber plug to allow the rubber plug to be strongly drawn and pressed onto the inner peripheral surface of the lid member, further securing the obstruction of the slit.