Medical device
Apparatuses of the type broadly applicable to numerous medical applications in which it is desirable to insert one or more steerable or non-steerable catheters or similar devices into a working channel of an associated device, such as an endoscope, catheter, etc., or passageway of a patient, are disclosed. The apparatuses may include catheters having a dedicated guide wire channel and one or more of the following: viewing capabilities, a working channel, and auxiliary channels, such as insufflation/irrigation channels. The catheters may include a guide wire channel that is configured to provide the catheter or other device with rapid exchange capabilities.
1. A medical device, comprising:
a shaft, including:
a guidewire lumen extending longitudinally through the shaft, and
a sleeve around the guidewire lumen, the sleeve including:
an outer surface,
an inner surface,
a channel having a first aperture at the outer surface and a second aperture at the inner surface, the second aperture opening into the guidewire lumen such that the channel defines a passageway for a guidewire between the outer surface and the guidewire lumen, and
a deflectable member configured to move into the guidewire lumen to a first configuration, and toward the second aperture to a second configuration.
2. The medical device of claim 1 , wherein the deflectable member includes a proximal pivoting end and a distal free end.
3. The medical device of claim 1 , wherein the deflectable member is biased to move toward one of the first and second configurations.
4. The medical device of claim 1 , wherein, when in the first configuration, the deflectable member opens a path between the channel and a distal portion of the guidewire lumen.
5. The medical device of claim 1 , wherein, when in the first configuration, the deflectable member acts as a restriction between the distal portion of the guidewire lumen and a proximal portion of the guidewire lumen.
6. The medical device of claim 1 , wherein, when in the second configuration, the deflectable member opens a path between proximal and distal portions of the guidewire lumen.
7. The medical device of claim 1 , wherein, when in the second configuration, the deflectable member restricts communication between the channel and the guidewire lumen.
8. An apparatus, comprising:
a guidewire; and
a catheter for receiving the guidewire, the catheter including:
a longitudinally-extending guidewire lumen, and
an outer sleeve, including:
an outer surface,
an inner surface,
a channel having a first aperture at the outer surface and a second aperture at the inner surface, the second aperture opening into the guidewire lumen such that the channel defines a passageway for the guidewire between the outer surface and the guidewire lumen, and
a deflectable member configured to move toward the second aperture to a first configuration, and away from the second aperture to a second configuration.
9. The apparatus of claim 8 , wherein the deflectable member is biased to move toward one of the first and second configurations.
10. The apparatus of claim 8 , wherein, when in the first configuration, the deflectable member opens a path between the channel and a distal portion of the guidewire lumen.
11. The apparatus of claim 8 , wherein, when in the first configuration, the deflectable member acts as a restriction between the distal portion of the guidewire lumen and a proximal portion of the guidewire lumen.
12. The apparatus of claim 8 , wherein, when in the second configuration, the deflectable member opens a path between proximal and distal portions of the guidewire lumen.
13. The apparatus of claim 8 , wherein, when in the second configuration, the deflectable member opens a path between proximal and distal portions of the guidewire lumen.
14. The apparatus of claim 8 , wherein the deflectable member is configured to deflect a proximal end of the guidewire into the channel as the guidewire is moved proximally through the guidewire lumen.