发明名称 |
Anesthetizing sheath apparatus with means for subcutaneous delivery of anesthetic agent or other fluid medicament |
摘要 |
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 helical sheath is formed from an elongate band that is wrapped around the cannula in a helical fashion so as to be capable of being positioned within the subcutaneous tissue once the cannula has been inserted into the body. The helical sheath has formed therein a lumen into which the anesthetic agent or other fluid medicament can be delivered via a hub that is connected to the proximal end of the helical sheath. The helical sheath has formed therein a plurality of delivery holes that form a fluid communication path with the lumen. The delivery holes permit the anesthetic agent or fluid medicament to be delivered to the surrounding subcutaneous tissue. |
申请公布号 |
US5647860(A) |
申请公布日期 |
1997.07.15 |
申请号 |
US19960621083 |
申请日期 |
1996.03.22 |
申请人 |
MERIT MEDICAL SYSTEMS, INC. |
发明人 |
ROTH, ROBERT;LAMPROPOULOS, FRED P.;MOTTOLA, JIM;NELSON, ARLIN DALE;FOOTE, JERROLD L. |
分类号 |
A61B17/34;A61F2/958;A61J15/00;A61M25/00;A61M25/06;(IPC1-7):A61M25/00 |
主分类号 |
A61B17/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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