Apparatus for fetal scalp blood sampling

• US 20080097245A1
• Filed: 09/13/2007
• Published: 04/24/2008
• Est. Priority Date: 09/13/2006
• Status: Active Grant

• Current Assignee: Karl Storz Se & Co. Kg
• Original Assignee: Karl Storz Se & Co. Kg
• Inventors: Kuehfuss, Andreas
• Granted Patent: US 8,221,331 B2
• Time in Patent Office: Days
• US Class Current: 600/583
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150442 Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/15105 Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
• CPC Class Codes: A61B 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable

Abstract

The invention relates to an apparatus for fetal scalp blood sampling, having a shaft, a blade that is mounted removably in the distal end of the shaft and that can be slid by means of a positioning mechanism between a starting position mounted in the and a working position extending beyond the distal end of the shaft, and also having a blood sampling device mounted on the distal end of the shaft. To create an apparatus for fetal scalp blood sampling that is easy to operate and also ensures a high degree of operating safety, it is proposed with the invention that the blade can be fixed by the positioning mechanism in the respective end position.

Claims

1. An apparatus for fetal scalp blood sampling, having a shaft, a blade that is mounted removably in the distal end of the shaft and that can be slid by means of a positioning mechanism between a starting position mounted in the shaft and a working position extending beyond the distal end of the shaft, and also having a blood sampling device mounted on the distal end of the shaft,

characterized in that

the blade can be fixed in place by the positioning mechanism in the particular end position.

2. An apparatus according to claim 1, characterized in that the positioning mechanism includes a push-button that can be slid in a guide track, so that the contours of the guide track and of the push-button shaft are adapted to one another in such a way that the push-button is positioned in the guide track so that it cannot slide in the various end positions of the blade.

3. An apparatus according to claim 2, characterized in that the push-button can be pressed into the guide tracks against the force of at least one spring-elastic element.

4. An apparatus according to claim 1, characterized in that the blade is mounted in a blade holder positioned so that it can slide in the axial direction in the shaft.

5. An apparatus according to claim 4, characterized in that the blade can be removed from or inserted into the blade holder exclusively in a change-over position that protrudes beyond the working position in the distal direction.

6. An apparatus according to claim 4, characterized in that the blade holder is configured as a jaw-like flapping mechanism.

8. An apparatus according to claim 1, characterized in that the blood sampling apparatus is configured as a capillary tubule that can be exchangeably secured on the shaft.

9. An apparatus according to claim 1, characterized in that a light conductor is positioned in the shaft extending to the distal end of the shaft.

10. An apparatus according to claim 2, characterized in that the blade is mounted in a blade holder positioned so that it can slide in the axial direction in the shaft.

11. An apparatus according to claim 3, characterized in that the blade is mounted in a blade holder positioned so that it can slide in the axial direction in the shaft.

12. An apparatus according to claim 5, characterized in that the blade holder is configured as a jaw-like flapping mechanism.

13. An apparatus according to claim 5, characterized in that the incision depth of the blade can be adjusted by the position of the blade in the blade holder.

14. An apparatus according to claim 6, characterized in that the incision depth of the blade can be adjusted by the position of the blade in the blade holder.

7. An apparatus according to characterized in that the incision depth of the blade can be adjusted by the position of the blade in the blade holder.