Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-03-22
1998-08-25
Mendez, Manuel
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
A61M 500
Patent
active
057978867
ABSTRACT:
A novel catheter apparatus for use in delivering an anesthetic agent or other fluid medicament to the portion of subcutaneous tissue through which a catheter device has been inserted into a patient, thereby allowing the catheter device to be retracted without causing pain or discomfort to the patient. The catheter device has an indwelling cannula adapted for insertion through subcutaneous tissue into a patient's body. A sheath is selectively disposed about the cannula so as to be positioned within the subcutaneous tissue once the cannula has been inserted into the body. The sheath may include a plurality of longitudinal bores which act as a lumen to provide fluid medicament to delivery holes on the outside of the sheath. The delivery holes permit the anesthetic agent or fluid medicament to be delivered to the subcutaneous tissue. A light permeable hub means may be used to maintain a fluid tight connection between the sheath means and a storage container for anesthetic agent or fluid medicament.
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Lambert et al., New Vascular Sheath for Subcutaneous Drug Administration: Design, Animal Testing, and Clinical Application for Pain Prevention after Angioplasty, Catheterization and Cardiovascular Diagnosis 37, pp. 68-72 (1996).
Foote Jerrold L.
Lampropoulos Fred P.
Mottola Jim
Nelson Arlin Dale
Roth Robert
Mendez Manuel
Merit Medical Systems Inc.
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