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US RE34,223 EGranted
Catheter inserter
AssigneeCare Medical Devices, Inc.
InventorJean M. Bonaldo
Life of this patent
Estimating the term…
Abstract
A catheter inserter has an inserter housing with a flat base and a cannula housing disposed within the inserter housing with a cannula extending generally parallel to the inserter housing longitudinal axis. Stop means are disposed at each end of the inserter housing. locking means on the cannula housing selectively engage the stop means to lock the cannula housing in a first disposition in which the cannula extends outwardly from the inserter housing and in a second disposition in which the cannula is retracted within said inserter housing. The cannula housing has a passage in fluid communication with the cannula which, together with means on the inserter housing and cannula housing, permit the external viewing of blood passing into the fluid passage from the cannula.
Claims20
A catheter inserter comprising:
- an inserter housing of parti-cylindrical configuration having a flat base which is generally parallel to the longitudinal axis of the inserter housing;
- a cannula;
- a cannula housing disposed within the inserter housing and longitudinally slidable therewithin, said cannula housing having a main body portion of a cross-sectional configuration which is generally complementary with the inserter housing cross-sectional configuration;
- said cannula housing including hub means for fixing said cannula to said cannula housing main body so as to extend generally parallel to the inserter housing longitudinal axis;
- first stop means disposed at said first end of said inserter housing;
- locking means formed on said cannula housing so as to be selectively engageable with said first stop means to lock said cannula housing in a first disposition in which the cannula extends outwardly from the inserter housing at a first end of said inserter housing;
- and
- second stop means formed on said inserter housing remote from said first stop means and selectively engageable with said locking means to lock said cannula housing in a second disposition in which said cannula is retracted within said inserter housing.
5 more elements
A catheter inserter as in any one of the preceding claims, and in which the cannula housing has a passage formed therein so as to be in fluid communication with the cannula;
- and
- means on said inserter housing and said cannula housing to permit the external viewing of blood passing into the fluid passage from the cannula.
A catheter inserter comprising:
- an inserter housing of parti-cylindrical configuration having a flat base which is generally parallel to the longitudinal axis of the inserter housing;
- a cannula;
- a cannula housing disposed within the inserter housing and longitudinally slidable therewithin, said cannula housing having a main body portion of a cross-sectional configuration which is generally complementary with the inserter housing cross-sectional configuration;
- said cannula housing including hub means for fixing said cannula to said cannula housing main body portion so as to extend generally parallel to the inserter housing longitudinal axis;
- first stop means disposed at said first end of said inserter housing and operable to stop said cannula housing in a first disposition in which the cannula extends outwardly from the inserter housing at a first end of said inserter housing;
- second stop means formed on said inserter housing remote from said first stop means;
- and
- locking means formed on said cannula housing so as to be selectively engageable with said second stop means to lock said cannula in a second disposition in which said cannula is retracted within said inserter housing.
5 more elements
A medical device for inserting a catheter which is detachably mounted to the exterior of said device into a patient comprising:
- an elongated hollow inserter housing of a pre-selected interior cross-sectional configuration and with a generally continuous external surface formed about a longitudinal axis, said external surface having a narrow longitudinal slot formed along one side thereof so as to be generally parallel to said longitudinal axis;
- a cannula housing disposed within the inserter housing and longitudinally slidable therewithin along said longitudinal axis, said cannula housing having a main body portion of an external cross-sectional configuration which is generally complementary to the inserter housing interior cross-sectional configuration;
- said cannula housing including hub means for fixing said cannula to said cannula housing main body portion so as to extend generally parallel to the inserter housing longitudinal axis;
- first stop means disposed at a first end of said inserter housing and operable to stop said cannula housing in a first disposition in which the cannula extends outwardly from an opening in the inserter housing at said first end so as to be insertable into said catheter;
- second stop means formed on said inserter housing remote from said first stop means;
- and
- locking means formed on said cannula housing so as to be selectively engageable with said second stop means to lock said cannula housing in a second disposition in which said cannula is retracted from said catheter and disposed within said inserter housing;
- said locking means including an arm on the cannula housing extending outwardly through the inserter housing longitudinal slot so as to be manually operable externally of the inserter housing to withdraw the cannula from the catheter and lock the cannula within the inserter housing by moving the cannula housing from said first disposition to said second disposition.
5 more elements
A catheter inserter comprising:
- an elongated hollow inserter housing of a pre-selected interior cross-sectional configuration and with a generally continuous external surface formed about a longitudinal axis, said external surface having a narrow longitudinal slot formed along one side thereof so as to be generally parallel to said longitudinal axis;
- a cannula housing disposed within the inserter housing and longitudinally slidable therewithin along said longitudinal axis, said cannula housing having a main body portion of an external cross-sectional configuration which is generally complementary to the inserter housing interior cross-sectional configuration;
- said cannula housing including hub means for fixing said cannula to said cannula housing main body portion so as to extend generally parallel to the inserter housing longitudinal axis;
- a catheter detachably mounted on the inserter housing at a first end thereof so as to extend away therefrom in longitudinal alignment with said longitudinal axis, said catheter terminating, at one end, at an opening formed in said inserter housing first end;
- first stop means disposed at said inserter housing first end and operable to stop said cannula housing in a first disposition in which the cannula extends outwardly through the first end opening into said catheter;
- second stop means formed on said inserter housing remote from said first stop means;
- and
- locking means formed on said cannula housing so as to be selectively engageable with said second stop means to lock said cannula housing in a second disposition in which said cannula is retracted from said catheter and disposed within said inserter housing;
- said locking means including an arm on the cannula housing extending outwardly through the inserter housing longitudinal slot so as to be manually operable externally of the inserter housing to withdraw the cannula from within the catheter through the first end opening into and lock the cannula within the inserter housing by moving the catheter housing from said first disposition to said second disposition.
6 more elements
Dependencies are inferred from the claim text.