Means for introducing and guiding objects into body cavities and blood vessels
OwnerMario Corralesinventor
Life of this patent
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Abstract
Means for introducing and guiding objects such as liquids or instruments in cavities or blood vessels in the body of a patient, comprising a cannula for insertion in the body at the place where the object is to be introduced into the body, a gold chain for insertion into the cannula and penetration into the body under the effect of gravity, and a soft, flexible catheter of a dimension for passing through the cannula and over the flexible member when inserted and for permitting the flexible member to be drawn out after insertion of the catheter.
Claims10
Means for introducing a catheter into a selected portion of a patient, for conducting an object to such portion via the catheter, comprising:
- a. a cannula for insertion into an opening in the patient;
- b. a catheter slidably received in and externally guided by said cannula, said catheter having an inner flexible portion projecting inwardly beyond said cannula;
- and
- c. a freely flexible elongated member movable in response to gravity to such portion of a patient, and providing internal guidance for said inner flexible portion of said catheter, whereby said flexible member is moved by gravity through said cannula to the selected portion, then serves as a guide for insertion of said catheter to said selected portion, and is then removed from the catheter to enable the catheter to pass the object to said portion.
A method for conducting an object to a selected portion of a patient, comprising:
- a. inserting a cannula into an opening in a patient;
- b. inserting a flexible elongated member through the cannula in response to gravity to such portion of the patient beyond the cannula;
- c. inserting a flexible catheter into the cannula in surrounding relation to the flexible elongated member by which elongated member the cannula is guided to such portion of the patient;
- d. withdrawing the flexible elongated member;
- and
- e. thereafter inserting the object into the catheter, to such portion of the patient.
Dependencies are inferred from the claim text.