Introducer device for medical procedures
Embodiments of the present disclosure provide an introducer device and methods for introducing a medical device into a patient's vasculature. In one embodiment, a method of using an introducer device including a housing, a hemostatic seal mounted within the housing, and a tube extending into the housing and movable longitudinally relative to the hemostatic seal between a proximal position and a distal position, includes moving the tube to the distal position such that the distal end of the tube extends through the hemostatic seal. The method further includes inserting a distal end portion of the medical device through the tube and into the patient's vasculature without contacting the hemostatic seal.
1. A method, comprising:
providing an introducer device for introducing a medical device into a patient's vasculature, the introducer device comprising a housing, a hemostatic seal mounted within the housing, and a tube extending into the housing and movable longitudinally relative to the hemostatic seal between a proximal position and a distal position, wherein when in the proximal position a distal end of the tube is positioned proximal to the hemostatic seal;
moving an end piece coupled to the tube longitudinally to cause corresponding distal movement of the tube to the distal position such that the distal end of the tube extends through the hemostatic seal, wherein when the tube is in the distal position at least a portion of the end piece extends coaxially over at least a section of a proximal end portion of the housing corresponding to a location at which at least a portion of the hemostatic seal is mounted within the housing, such that a vertical plane perpendicular to a longitudinal axis of the housing intersects the section of the housing, the hemostatic seal, and the end piece; and
inserting a distal end portion of the medical device through the tube and into the patient's vasculature without contacting the hemostatic seal.
2. The method of claim 1 , wherein moving the end piece comprises rotating the end piece relative to the housing such that threads on the end piece engage corresponding threads on the housing to move the end piece longitudinally relative to the housing.
3. The method of claim 1 , wherein inserting the medical device comprises advancing the distal end portion of the medical device through a central opening in the end piece and through a lumen of the tube.
4. The method of claim 1 , wherein the medical device is a catheter.
5. The method of claim 1 , further comprising: inserting a guide wire into the patient's vasculature;
disposing the introducer device on the guide wire; and
advancing the introducer device along the guide wire.
6. The method of claim 1 , further comprising inserting a tubular member into the patient's vasculature, wherein the tubular member extends from a distal end of the housing;
wherein the act of inserting comprises inserting the distal end portion of the medical device through the tube and the tubular member into the patient's vasculature without contacting the hemostatic seal.
7. The method of claim 1 , wherein the introducer device further comprises a second seal mounted within the housing through which the distal end portion of the medical device is inserted.
8. The method of claim 7 , wherein at least one of the hemostatic seal and the second seal comprise a cross-slit configuration.
9. A method, comprising:
opening a hemostatic seal of an introducer device by moving an end piece coupled to a tube of the introducer device from a proximal position to a distal position, wherein when the end piece and the tube are in the proximal position, the tube does not extend through the hemostatic seal and wherein when the tube is in the distal position, the tube extends through the hemostatic seal and a distal end portion of the end piece is distal relative to a proximal face of the hemostatic seal;
after opening the hemostatic seal, inserting a medical device into a proximal opening of the tube, through the tube and into a patient's vasculature without contacting the hemostatic seal.
10. The method of claim 9 , wherein moving the end piece and the tube from the proximal position to the distal position comprises manually moving the end piece longitudinally in a distal direction to cause corresponding distal movement of the tube.
11. The method of claim 9 , wherein moving the tube from a proximal position to a distal position comprises manually rotating an end piece coupled to the tube relative to a housing into which the tube extends such that threads on the end piece engages corresponding threads on the housing to move the end piece longitudinally relative to the housing.
12. The method of claim 9 , wherein the tube is coupled to an end piece, and wherein inserting the medical device comprises advancing the medical device through a central opening in the end piece and through an inner lumen of the tube.
13. The method of claim 9 , wherein the medical device is a catheter.
14. The method of claim 9 , further comprising:
inserting a guide wire into the patient's vasculature;
disposing the introducer device on the guide wire; and
advancing the introducer device along the guide wire.
15. The method of claim 9 , further comprising inserting a tubular member into the patient's vasculature, wherein the tubular member extends from a distal end of a housing into which a portion of the tube extends;
wherein the act of inserting comprises inserting a distal end portion of the medical device through the tube and the tubular member into the patient's vasculature without contacting the hemostatic seal.
16. The method of claim 9 , wherein the introducer device further comprises a second seal disposed in the introducer device, through which a distal end portion of the medical device is inserted.
17. The method of claim 16 , wherein at least one of the hemostatic seal and the second seal comprise a cross-slit configuration.
18. A method, comprising:
inserting a tubular member into a patient's vasculature, the tubular member extending from a distal end of a housing;
longitudinally moving an end piece coupled to a tube extending into the housing to move the tube from a proximal position wherein a distal end of the tube is positioned proximal to a hemostatic seal disposed within the housing to a distal position such that the distal end of the tube extends through the hemostatic seal, wherein when the tube is in the distal position at least a portion of the end piece extends co-axially over at least a section of a proximal end portion of the housing corresponding to a location at which at least a portion of the hemostatic seal is disposed within the lumen of the housing, such that a vertical plane perpendicular to a longitudinal axis of the housing intersects the housing, the hemostatic seal, and the end piece; and
inserting a distal end portion of a medical device through a central opening in the end piece and through an inner lumen of the tube and into the patient's vasculature without contacting the hemostatic seal.
19. The method of claim 18 , wherein moving the end piece longitudinally comprises manually pushing the end piece in a distal direction relative to the housing.