摘要:
A displacement syringe having a housing with a distal tip and a proximal end; a moveable outer plunger within the housing having an elongated passageway; at least one moveable inner plunger within the passageway of the outer plunger; at least one first seal between the outer plunger and the housing; and at least one second seal between the inner plunger and the outer plunger is disclosed herein. The syringe may have a lock at the proximal end of the housing and/or a valve at the distal tip of the housing. The syringe may also have a plurality of inner plungers of various diameters. A transfer system and delivery system are also disclosed herein. Methods to accurately and efficiently deliver small volumes using the displacement syringe are also disclosed.
摘要:
A bladder syringe for a fluid delivery system includes a cylindrical body, a cap-bladder assembly, a plunger element disposed in the cylindrical body, and a mounting assembly to secure the cap-bladder assembly to the cylindrical body. The cylindrical body has a distal end and a proximal end and defines a throughbore. The cap-bladder assembly is adapted for connection to the distal end of the cylindrical body, and includes a cap body and a bladder. The cap body defines an interior cavity and a distal discharge conduit and is adapted to engage the distal end of the cylindrical body. A disc-shaped bladder is disposed within the interior cavity and typically includes a central membrane portion. The plunger element is disposed in the throughbore of the cylindrical body and is vented to enable evacuation of the space between the plunger element and the cap-bladder assembly in the cylindrical body.
摘要:
A bladder syringe for a fluid delivery system includes a cylindrical body, a cap-bladder assembly, a plunger element disposed in the cylindrical body, and a mounting assembly to secure the cap-bladder assembly to the cylindrical body. The cylindrical body has a distal end and a proximal end and defines a throughbore. The cap-bladder assembly is adapted for connection to the distal end of the cylindrical body, and includes a cap body and a bladder. The cap body defines an interior cavity and a distal discharge conduit and is adapted to engage the distal end of the cylindrical body. A disc-shaped bladder is disposed within the interior cavity and typically includes a central membrane portion. The plunger element is disposed in the throughbore of the cylindrical body and is vented to enable evacuation of the space between the plunger element and the cap-bladder assembly in the cylindrical body.
摘要:
A system for connecting a conduit to a fluid path element, includes a length of conduit, a compressible sealing element positioned on a distal end of the length of conduit to be attached to the fluid path element, a first cooperating connector positioned around the length of conduit proximal to the sealing element and a second cooperating connector. The first cooperating connector includes a first cooperating connection mechanism and the second cooperating connector includes a second cooperating connection mechanism. The first cooperating connection mechanism and the second cooperating connection mechanism are adapted to form a connection between the first cooperating connector and the second cooperating connector. The connection causes the compression of the sealing element. The second cooperating connector further includes a passage therein in fluid connection with a connection for the fluid path element. Another system for connecting to a fluid path section includes a connector including a connection mechanism to connect the connector to the fluid path section and a passage therethrough. The passage is in fluid connection with a first fluid path element downstream of the connector. The first fluid path element includes a lumen therethrough. The diameter of the lumen is flared outward to a larger diameter at a proximal end of the fluid path element. The proximal end of the first fluid path element can abut a surface of the connector in which the distal end of the fluid path is formed. The inner diameter of the proximal end is greater than the diameter of the passage of the second cooperating connector. The outer diameter of the proximal end of the first fluid path element can also be flared outward
摘要:
Systems for connecting a conduit to an injection needle may include a sealing element positioned on a distal end of the conduit, a first cooperating connector positioned around the length of conduit proximal to the sealing element and a second cooperating connector. The first cooperating connector includes a first cooperating connection mechanism and the second cooperating connector includes a second cooperating connection mechanism having a passage therein. The first cooperating connection mechanism and the second cooperating connection mechanism are adapted to form a connection between the first cooperating connector and the second cooperating connector. The connection causes the compression of the sealing element. The injection needle has a lumen with a diameter flared outward to a larger diameter at a proximal end. The second cooperating connector has a mounting hole connected to the passage and a sleeve around the injection needle so that the sleeve and the injection needle are received within the mounting hole.
摘要:
A bladder syringe for a fluid delivery system includes a cylindrical body, a cap-bladder assembly, a plunger element disposed in the cylindrical body, and a mounting assembly to secure the cap-bladder assembly to the cylindrical body. The cylindrical body has a distal end and a proximal end and defines a throughbore. The cap-bladder assembly is adapted for connection to the distal end of the cylindrical body, and includes a cap body and a bladder. The cap body defines an interior cavity and a distal discharge conduit and is adapted to engage the distal end of the cylindrical body. A disc-shaped bladder is disposed within the interior cavity and typically includes a central membrane portion. The plunger element is disposed in the throughbore of the cylindrical body and is vented to enable evacuation of the space between the plunger element and the cap-bladder assembly in the cylindrical body.
摘要:
A bladder syringe for a fluid delivery system includes a cylindrical body, a cap-bladder assembly, a plunger element disposed in the cylindrical body, and a mounting assembly to secure the cap-bladder assembly to the cylindrical body. The cylindrical body has a distal end and a proximal end and defines a throughbore. The cap-bladder assembly is adapted for connection to the distal end of the cylindrical body, and includes a cap body and a bladder. The cap body defines an interior cavity and a distal discharge conduit and is adapted to engage the distal end of the cylindrical body. A disc-shaped bladder is disposed within the interior cavity and typically includes a central membrane portion. The plunger element is disposed in the throughbore of the cylindrical body and is vented to enable evacuation of the space between the plunger element and the cap-bladder assembly in the cylindrical body.
摘要:
A depth stop device for use in connection with another device or apparatus (for example, a medical device) includes a stop member slidably positionable on the device, at least one abutment member in operative connection with the stop member to adjustably contact the device to lock the stop member in a desired position relative to the device or to free the stop member to slide relative to the device, and an adjustment member connected to the abutment member to control a position of the abutment member relative to the device. The force applicable by the abutment member to the device is limited to be less than a certain force.
摘要:
A depth stop device for use in connection with another device or apparatus (for example, a medical device) includes a stop member slidably positionable on the device, at least one abutment member in operative connection with the stop member to adjustably contact the device to lock the stop member in a desired position relative to the device or to free the stop member to slide relative to the device, and an adjustment member connected to the abutment member to control a position of the abutment member relative to the device. The force applicable by the abutment member to the device is limited to be less than a certain force.