摘要:
The present disclosure provides a catheter comprising: (a) a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening, (b) a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening, and (c) a fourth opening positioned in a sidewail of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular staicture, wherein a first portion of the first tubular structure extends beyond the fourth opening, and wherem the second tubular structure is positioned adjacent to a second portion of the first tubular structure.
摘要:
A catheter (100) including a first tubular structure (102) defining a first lumen (104), the first tubular structure having a first end (106) and a second end (108). The catheter may also include a second tubular structure (110) defining a second lumen (112), the second tubular structure having a first end (114) and a second end (116). The catheter may also include an aperture (118) between the first tubular structure and the second tubular structure. The aperture is located at the first end of the second tubular structure. A first portion of the first tubular structure extends beyond the aperture, and the second tubular structure is positioned adjacent to a second portion of the first tubular structure.
摘要:
An endoscope comprising an examination field cleaning system and a method of using the endoscope to clean an examination field in an internal body cavity are disclosed herein. The endoscope comprises an inner channel comprising a primary working channel, lens system, and light delivery system and an outer secondary working channel comprising an examination field cleaning system. The inner channel is approximately cylindrical and is encompassed by a rigid or flexible tube. The outer secondary working channel is encompassed by an outer cylinder that is concentric with and fully encompasses the inner channel and tube, wherein the examination field cleaning system may comprise one or more fluid delivery channels. The endoscope may further comprise an anchoring bridge, wherein the anchoring bridge secures the outer cylinder to the inner channel.
摘要:
The present invention relates to a device for ultrasonic-accelerated hematoma lysis or thrombolysis of intracerebral or intraventricular hemorrhages or hematomas, comprising a body (20) which accommodates a number of separated compartments or lumens consisting of a flushing catheter (1) for flushing fluid and/or pharmaceutically active substances into the intracerebral or intraventricular hemorrhages or hematomas, a drainage catheter (2) for draining fluid from the intracerebral or intraventricular hemorrhages or hematomas, an ultrasonic probe duct (3), and a pressure sensor duct (5), wherein the compartments or lumens are arranged in proximity to each other and wherein in longitudinal extension at least upper-part sections of the compartments or lumens are isolated by walls, wherein the lumen of the pressure sensor duct (5) integrates a pressure sensor (6), and wherein in the lumen of ultrasonic probe duct (3) an endosonographic probe (4) or a stiletto (13) is interchangeably guided.
摘要:
Infusion balloon catheter (100, 200) with fortified proximal infusion outlet port (106, 206), and manufacturing thereof. Infusion balloon catheter includes: inflatable balloon member (102, 202); shaft (101, 201) having distal end (103, 203) attached to balloon member, and shaft wall enclosing: first lumen (104, 204) providing passage to balloon inflation fluid, and second lumen (105, 205) providing passage to infusion fluid and guidewire (GW); and bending-resistant insert member (107, 207, 300a-f, 400a-b) housed in second lumen and located proximally to balloon member, insert member is affixed to, and conforms to shape of, shaft inner wall surface, and includes one or more opening(s) (108, 208). Shaft wall has infusion outlet port located along, and providing opening to, second lumen proximally to balloon member. Insert opening(s) is/are in direct fluid communication with infusion outlet port whose cross-sectional area is larger than that of infusion inlet opening. Bending-resistant insert member provides fortifying structural support to shaft wall portion surrounding infusion outlet port. Applicable to medical procedures involving injection of imaging contrast material or/and drugs.
摘要:
Devices for preventing and/or otherwise inhibiting biofilm formation include a lumen and/or cavity coupled with a wall configured for holding oils, which Ieach through the wall of the device to the surface, the oil at the surface creating a smooth surface coating.
摘要:
A multi-!umen catheter assembly comprises an inner shaft, an outer shaft and one or more features. The inner shaft comprises an inner surface and an outer surface. The inner surface defines a first lumen. The outer shaft is coaxially disposed about the inner shaft and is deformabie inwardly toward the outer surface of the inner shaft. The outer shaft comprises an inner surface and an outer surface. The outer shaft is radially space from the inner shaft such that the inner surface of the outer shaft and the outer surface of the inner shaft together define a second lumen. The one or more features are configured to maintain patency through the second lumen as the outer shaft deforms inwardly toward the outer surface of the inner shaft.
摘要:
A catheter tube for insertion into a body of a patient is disclosed. The catheter tube includes a distal portion that remains stable during fluid infusion into the patient, thus reducing or eliminating whipping of the catheter distal tip, even during power injection. In one embodiment, the catheter tube defines at least one lumen and is formed from a tube material that defines a proximal portion and a distal portion of the catheter tube. The catheter tube is configured such that the arithmetic product of an elastic modulus and an area moment of inertia for at least a portion of the distal portion of the catheter tube defined by the catheter tube material is greater relative the arithmetic product of an elastic modulus and an area moment of inertia for at least a portion of the proximal portion of the catheter tube.
摘要:
A pressure detection assembly (100) adapted for use with a continuous flow endoscope (200) provided with a rinse inlet lumen (234) connected to a rinse inlet port (254) said assembly (100) comprising: (i) an elongated member (10) having a proximal (20) and distal (30) end, (ii) a pressure detecting body (50) at the distal (30) end of the elongated member (10), configured to provide an indication of ambient pressure, (iii) a coupling (40) disposed over the elongated member (10), configured for dismountable attachment to the proximal rinse inlet port (254) of the endoscope (200), (iv) said elongated member (10) configured to conduct the indication of ambient pressure to its proximal (20) end, (v) said elongated member (10) further configured for advancement through the rinse inlet lumen (234), and (vi) said fluidic coupling (40) further configured to isolate fluidicly the proximal (20) tip of the elongated member (10) from the rinse inlet port (254) of the endoscope (200).