Medical device

• US 20070129692A1
• Filed: 09/11/2006
• Published: 06/07/2007
• Est. Priority Date: 09/15/2005
• Status: Abandoned Application

• Current Assignee: Enomoto Company Limited
• Original Assignee: Enomoto Company Limited
• Inventors: Yamada, Kazuo, Hosoda, Mitsuji, Ohkanda, Kouki, Enomoto, Nobuo, Osada, Yoshimichi
• Application Number:
  US11/518,489
• Publication Number:
  US 20070129692A1
• Time in Patent Office: Days
• US Class Current: 604/284
• CPC Class Codes: A61M 2025/0076 Unidirectional valves
• CPC Class Codes: A61M 25/0075 Valve means
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/20 Closure caps or plugs for connectors or open ends of tubes
• CPC Class Codes: A61M 39/24 Check- or non-return valves

Abstract

There is provided a medical device, especially an indwelling needle with a branch tube, in which the construction is simple, the operation can be performed easily in a short period of time, and misoperation is less liable to occur, thus a medical accident being less prone to take place. In the medical device, a first case portion fitted with a check valve therein and provided with a flexible portion having a pressing button and a second case portion connecting with the first case portion on the inflow side of the check valve are separate parts. The medical device is characterized by having a branch tube which extends to the side of the second case portion and the interior of which communicates with the hollow portion of the second case portion.

Claims

1. A medical device comprising as separate parts:

a first case portion fitted with a check valve therein and provided with a flexible portion having a pressing button, and a second case portion connecting with the first case portion on the inflow side of the check valve, wherein

the medical device has a branch tube which extends to the side of the second case portion and the interior of which communicates with a hollow portion of the second case portion.

2. The medical device according to claim 1, wherein the medical device has a tube one end of which is fitted with a threaded hub and a threaded cap and the other end of which is connected to the branch tube.

3. The medical device according to claim 1, wherein threads are provided at a free end of the branch tube, and a threaded cap threadedly engaging with the threads is mounted.

4. The medical device of claim 1, wherein the medical device is used by causing an inner needle to pass through a center axis and to pass through a center of a tip end of the check valve.

5. The medical device of claim 1, wherein the first case portion and the second case portion are transparent or semitransparent.

6. The medical device of claim 2, wherein the medical device is used by causing an inner needle to pass through a center axis and to pass through a center of a tip end of the check valve.

7. The medical device of claim 3, wherein the medical device is used by causing an inner needle to pass through a center axis and to pass through a center of a tip end of the check valve.

8. The medical device of claim 2, wherein the first case portion and the second case portion are transparent or semitransparent.

9. The medical device of claim 3, wherein the first case portion and the second case portion are transparent or semitransparent.

10. The medical device of claim 4, wherein the first case portion and the second case portion are transparent or semitransparent.

11. The medical device of claim 6, wherein the first case portion and the second case portion are transparent or semitransparent.

12. The medical device of claim 7, wherein the first case portion and the second case portion are transparent or semitransparent.