JPS62694B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a medical capsule device that directly measures PH value and administers medicine within a body cavity.

There are known methods for directly measuring PH values and administering medicines within body cavities such as the stomach and intestines. This method involves swallowing a capsule containing a PH measuring device and a radio.
As the capsule passes through the stomach and intestines, the measurement results are wirelessly transmitted outside the body.
However, since the capsules mentioned above simply pass through the stomach and intestines, they remain in a fixed position for a long time, causing PH.
It is not possible to measure values or administer medications. especially,
It is desirable to measure the PH value in the stomach and administer drugs over a long period of time, but this has not been possible with the above conventional methods.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to perform various measurements, administer drugs, etc. within the body cavity by fixing the capsule body alone to the wall of the body cavity with a simple structure. It is possible,
Another object of the present invention is to provide a medical capsule device whose capsule body can be recovered if necessary.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 in FIG. 1 is a capsule main body, and one end of this capsule main body 1 has a capsule fixing part 2, and the other end has a transmitting/receiving part 3, a measuring part 4, and a power supply part 5. These parts 2, 3, 4,
5 are connected and fixed to each other by screwing, and can be separated from each other if necessary. The transmitting/receiving section 3 receives external commands and transmits the measurement results from the measuring section 4 to the outside. Note that the measurement section 4 is provided with measurement terminals 6 and 7 exposed to the outside for measuring, for example, the PH value in the body cavity.

Further, the capsule fixing portion 2 is provided with a needle storage chamber 9 for the suture needle 8 which is formed into an arc shape with a size of 240 degrees. is designed to be rotatably stored along the curved direction. Furthermore, an abutment part 10 consisting of a fan-shaped concave part with a size of 120 degrees is formed on the end face of the capsule fixing part 2, and the suture needle 8 is protruded to the outside from one side of this abutment part 10. A protrusion port 11 is provided, and a return port 12 is provided on the other side for returning the suture needle 8 protruding to the outside into the needle storage chamber 9. The above protruding port 11
A valve 13 made of an elastic piece is provided in the needle storage chamber 9 to prevent fluids in the body cavity from entering the needle storage chamber 9. In addition, a suture needle 8 is provided at the return port 12.
A stopper portion 15 consisting of a groove for locking a protrusion 14 provided at the rear end is provided. Thus, the suture needle 8 protrudes its needle tip 16 into the valve 1 of the opening 11.
The entire needle storage chamber 9 is located inside the needle storage chamber 9.

Furthermore, a suturing needle drive mechanism 18 is provided within the capsule fixing portion 2 to rotate the suturing needle 8 by urging it by a biasing body 17 . That is, the suture needle drive mechanism 18 stores energy in the biasing body 17 made of, for example, a spiral spring, and forces the distal end locking portion 19 of the biasing body 17 to the suture needle 8.
It is to be locked to the receiving part 20 of. and,
As the biasing body 17 rolls back, the tip locking portion 19
The suturing needle 8 is rotated in the A direction via the receiving portion 20 that is engaged with the suture needle 8. However, the tip end locking portion 19 of the biasing body 17 is attached to the actuating wire 21.
It is pulled in the direction of storage and held in a standby state.

The actuating wire 21 is made of a material that can be easily cut by heat, is guided to a thermal cutting device part 23 by a plurality of guide rollers 22, and is fixed to a stopper 24. Furthermore, the actuation wire 21 is connected to the second
As shown in the figure, it is installed so as to be in contact with the electric heating filament 25 of the thermal cutting device section 23, and when electric current is applied to the electric heating filament 25 to generate heat, the actuating wire 21 is cut and the biasing body 17 is stored. It is designed to instantly release the hold state.
Further, a stopper 27 for fixing the rear end of the suture thread 26 is provided near the electric heating filament 25.

The distal end of the suture thread 26 is attached and fixed to a connector 28 at the rear end of the suture needle 8, as shown in FIG. 1, and has an appropriate length necessary to reach the stop 27. In the thermal cutting device section 23, the suture thread 26 is pulled out and stands by without contacting the electric heating filament 25. However, as will be described later, the suture needle drive mechanism 18 is activated and the suture thread 26 is paid out. As shown in FIG. 4, it comes into contact with an electric heating filament 25.

Further, the electric heating filament 25 is connected to the transmitting/receiving section 3
When it receives a command from the outside, it generates heat due to the operation of its electric circuit.

Next, the operation of the above embodiment will be explained. First, as shown in FIGS. 1 and 2, the capsule fixing part 2
The suturing needle 8 is stored in the needle storage chamber 9, and the biasing body 17 of the suturing needle drive mechanism 18 is set to be energized and maintained in the energized state by the actuating wire 21. In this state, the capsule body 1 is swallowed and introduced into the stomach. Then, the position and orientation of the capsule fixing part 2 is selected while looking through the X-ray.
The wall portion 29 of the portion where the abutting portion 10 is to be fixed
press against. Therefore, a part of the wall portion 29
As shown in the figure, it enters the inside of the contact portion 10. Therefore, when a command is given from the outside by radio or the like, the electric circuit of the transmitting/receiving section 3 receives the command and connects the power source (not shown) of the power supply section 5 to the electric heating filament 25 to supply current. Therefore, the electric heating filament 25 generates heat and cuts the actuating wire 21.
As a result, the biasing body 17 cannot be held in the stored state, and the stored force of the biasing body 17 is transmitted to the suture needle 8, causing the suture needle 8 to rotate strongly in the A direction. Thus, the suture needle 8 pierces the portion of the wall 29 that protrudes from the protrusion port 11 and enters the abutting portion 10, and returns to the needle storage chamber 9 from the return port 12.
As it moves in, the protrusion 14 at the rear end engages with the stopper 15 and stops. That is, the suture needle 8 is stored in the needle storage chamber 9 again. Also, due to this operation, the suture thread 26 is paid out and the suture needle 8
In order to follow the pattern, it is sewn into the wall portion 29. Therefore, the capsule body 1 can be fixed at a fixed location on the wall 29 as shown in FIG. Note that at this time, the rear end of the suture thread 26 is
Although electrically heated filament 25 is contacted as shown, electrically heated filament 25 is already deenergized and does not cut suture 26.

With the capsule body 1 fixed to the wall 29 as described above, the measurement unit 4 measures the pH of the stomach, for example.
The value is detected and this information is wirelessly transmitted from the transmitting/receiving section 3 to the outside. Therefore, the PH value can be measured at a target site within a body cavity for a long period of time without causing pain to the patient.

On the other hand, when the capsule body 1 is desired to be recovered after the measurement is completed, a command is given again from outside the body to cause the electric heating filament 25 to generate heat. This causes the suture 26 in contact with the electrically heated filament 25 to be severed by the heat. Therefore, the cut end of the suture thread 26 pierced through the wall portion 29 becomes free.
It can be easily removed from the wall portion 29. It will then be excreted from the body.

Thus, according to the above embodiment, the capsule body 1 can be fixed at a predetermined location within the body cavity.
Therefore, it is possible to reliably measure the PH value and the like at a certain position within the body cavity over a long period of time.
In addition, since the suture thread 26 is sewn into the body cavity wall 29 to fix the capsule body 1, less stimulation is given to the body cavity wall 29 compared to fixing means such as clamping, and for a long time. Even if it is fixed over a wide area, there is no risk of deteriorating the structure of the wall portion 29. Further, the driving of the suture needle 8 is started by cutting the actuating wire 21 with the electric heating filament 25, and after the measurement is completed, the suture thread 26 is also cut with the electric heating filament 25, so that the capsule body 1 can be recovered. In other words, these operations can be performed by the same command from the outside, and the related mechanisms can therefore be simplified and downsized.

In the above embodiment, the capsule fixing section 2, the transmitting/receiving section 3, the measuring section 4, and the power supply section 5 can be separated, so for example, by replacing the measuring section 4 with another one, the PH value can be adjusted. can be used for many other purposes. Furthermore, by attaching various device parts for sample collection or drug administration in place of the measurement part 4, it is possible to collect a sample or administer a drug at a desired time after fixing the capsule body 1.

As explained above, according to the present invention, the capsule body can be fixed at a predetermined location within the body cavity, so that measurements, sample collection, drug administration, etc. can be carried out at a fixed location within the body cavity for a long period of time as needed. can be done. Further, since the fixing means is to fix the suture by sewing the suture into the wall of the body cavity, there is no risk of deterioration of the tissue of the wall even if the fixation is carried out for a long time.
Furthermore, since the start of driving the suture needle and the release of the suture thread utilize an electric heating filament that generates heat based on the same command from the outside, these related mechanisms can be simplified and miniaturized.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional side view thereof, FIG. 2 is an enlarged sectional view of the thermal cutting device in the same state, and FIG. 3 is an illustration of an embodiment of the present invention when it is fixed to the wall of a body cavity. FIG. 4 is an enlarged sectional view of the thermal cutting device section in the same state. 1... Capsule body, 8... Suture needle, 17...
Biasing body, 18... Suture needle drive mechanism, 21... Actuation wire, 25... Electric heating filament.

Claims (1)

[Claims] 1 A capsule body and a suture needle provided in the capsule body which is curved in an arc shape are housed so as to be rotatable in the direction of the arc shape, and when the suture needle is rotated, the suture needle protrudes outside and the inner wall of the body cavity is A needle storage chamber that can be penetrated and returned again, a suture needle drive mechanism that urges and rotates the suture needle in this needle storage chamber by a biasing body, and a suture needle drive mechanism that is connected to the suture needle drive mechanism and that is pulled by being pulled. An actuation wire that maintains the operation in a standby state and can be cut by heat; and an actuation wire that is housed within the capsule body and is pulled out by the suture needle and sutured to the wall of the body cavity to fix the capsule body. a thermally cutable suture; an electric heating filament for cutting disposed within the capsule body in contact with the actuating wire and with which the suture comes into contact after suturing; What is claimed is: 1. A medical capsule device comprising: an electric circuit that supplies current based on a disconnection command;