JPS6111105B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a medical capsule that is operated at a predetermined position within the gastrointestinal tract by sending commands from the outside to collect body fluids within the gastrointestinal tract.

Conventionally, body fluids in the gastrointestinal tract have been collected using a swallowing tube or the like in the case of the stomach. However, a tube was passed from the mouth to the stomach, causing great pain to the patient. Furthermore, the tube method cannot be used for the duodenum, small intestine, etc.
It was extremely difficult to diagnose the duodenum, small intestine, etc. accurately.

The purpose of the present invention is to
The objective is to provide something that is as easy to obtain as food, and that allows body fluids to be collected not only from the stomach but also from any location in the digestive tract, such as the duodenum and small intestine.

The structure of the device according to the invention will be explained by way of example.

FIG. 1 and FIG. 2 will be explained. In the figure, 1 is the main frame, 2 is a chamber that houses a power supply circuit that operates upon receiving commands from the outside, 3 is a filament,
4 is a string. The filament 3 is connected as a load to the power circuit housed in the chamber 2, and the string 4
is in contact with at right angles. 5, the string is id. Reference numeral 6 denotes an outer cylinder fitted to the main body frame 1.
The movable cylinder has a sampling hole 7a for sampling body fluid, and this sampling hole can be closed with a lid 8. This lid 8 is fixed to a ring spring 9 by a shaft 10. The other end of the ring spring 9 is
The string is fixed to the id 5 by a pin 11. On the other hand, the movable tube 7 is tightly tied to the main body frame 1 with a string passing through the stopper 12a, the end 5, and the stopper 12b in this order. Further, the ring spring 9 is sandwiched between the movable cylinder 7 and the main body frame 1 and is compressed. The movable tube 7 moves the outer tube 6 when the string 4 is cut by the filament.
The force for protruding is provided by a push spring 13.

The amount by which the movable cylinder protrudes is determined by a rubber packing 14 attached to the distal end 6a of the outer cylinder 6 and the edge 7a of the movable cylinder 7. That is, the movable cylinder 7 protrudes and stops when the rubber packing 14 hits the tip 6a of the outer cylinder 6.

Next, the operation will be explained in detail with reference to FIGS. 3 and 4. The power supply circuit of this device is operated by radio waves oscillated by an external command in the digestive tract of the body, and current flows through the filament 3. The filament 3 generates heat, and the string 4 is cut by the heat. As a result, the movable cylinder 7 is pushed out from the inside of the outer cylinder 6 by the force of the push spring 13. At the same time, the ring spring 9, which has been compressed by the main body frame 1 and the movable tube 7, is released from the compressed state and gradually becomes circular. The mandrel 1 is attached to one end of the ring spring 9.
The lid 8, which is fixed at 0, also moves as the movable cylinder 7 protrudes. Therefore, the gap between the movable tube 7 and the lid 8 is kept constant while the body fluid is sucked into the movable tube 7 through the gap. When the ring spring 9 becomes completely circular, the lid 8 stops moving. However, since the movable cylinder 7 continues to move, the gap between the lid 8 and the movable cylinder 7 gradually narrows until they completely come into contact with each other. As a result, the flow of body fluid into the moving cylinder 7 is stopped. Next, the lid 8 is lifted by the movable tube 7, and the ring spring 9 is pulled and deformed into an inverted ellipse. The movable cylinder 7 stops moving when the tip 6a of the outer cylinder 6 and the rubber packing 14 come into contact with each other.

The device according to the present invention allows the moving tube and the lid to move with a constant gap until just before the end of the operation, so that body fluid can be effectively collected and moved by the tension force of the ring spring and the pushing force of the push spring. Since the tube and the lid are in close contact with each other, it has the effect of ensuring reliable sealing after collection of body fluids.

[Brief explanation of drawings]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig.
The figure shows a part of a sectional view taken from a direction perpendicular to FIG. 1, FIG. 3 shows a state diagram during operation, and FIG. 4 shows a state diagram at the end of operation. 1...Main frame, 2...Power circuit room, 3...
...Filament, 4...String, 5...String guide, 6
... Outer tube, 7... Moving tube, 8... Lid, 9... Ring spring, 10... Mandrel, 11... Pin, 12...
Plug, 13...push spring, 14...rubber plug.

Claims (1)

[Claims] 1 A main body frame having a cylindrical shape, a power supply circuit and a filament provided in the main body frame, a movable tube slidably held on the outer periphery of the main body frame via a spring, and one end of the movable tube attached to the movable tube. a string which is fixed and whose other end is joined to the filament and which locks the movable tube in a predetermined position of the frame; a lid provided in the collection hole of the movable tube via a mandrel; and the mandrel. a deformable ring spring inserted between the movable tube; a rubber gasket formed at the lower end of the movable tube; an outer tube fixed at an outer position of the movable tube; and a deformable ring spring formed at the upper end of the outer tube. When the filament is heated and the string is cut, the movable tube rises and the ring spring becomes compressed into a circular shape, and the body fluid is sucked from the collection hole. A medical capsule characterized by: