KR20030020033A - Power generator for medical implant - Google Patents

Abstract

PURPOSE: Provided is a generator for medical instruments which utilizes blood pressure in a human body and converts into a rotation movement to generate necessary electricity so that it enables to supply electricity in a semi-permanent way. CONSTITUTION: The generator for the medical instruments comprises the parts of: an inflow hole(11) which enables blood to flow in; an inflow controller(31,32,33) which controls the amount entered; a wheel(16) which rotates the entered blood; planetary gear trains(22,21,15) which adjust rotation ratio and rotation power properly to rotate a center axis of the generator; and an outflow hole(10) which is rotated with the wheel to release the rotated blood.

Description

Generator for medical instruments {Power generator for medical implant}

The present invention relates to a method for constructing an in-body generator for a medical device. The method relates to a method for obtaining power in the body by rotating the shaft of the generator by converting the rotational motion using the blood pressure present in the blood vessels in the body, and then adding and subtracting the rotational speed as necessary.

As technology advances in medicine, organ transplantation, which has been impossible in the past, has become commonplace, and the development of artificial organs has been rapidly progressing, and thus, a power supply device for driving a motor, a sensor, or an actuator in the human body is required. The power required in the human body depends on the artificial organs and devices used, and power consumption is gradually decreasing due to the recent development of semiconductors.

There are three main types of power supply currently under consideration for human medical care. The first method is to transfer power by magnetically coupling the outside and the inside of the human body. In this method, since the power line does not pass through the skin of the human body, the risk of infection is low and the waterproofing is possible, so it is possible to bathe and swim, thereby increasing the convenience of the patient. In addition, if the power supply device that is supplied from the outside of the human body is driven by a battery, the external device can be carried, allowing walking and movement. However, in this method, the power supply is interrupted and free daily life becomes difficult if the external device and the internal device are not always magnetically coupled.

The second method is to directly supply the necessary power inside the human body using a power line. This method has the advantage of not only being able to supply a lot of power instantaneously with a small device but also to exchange information internally and externally quickly and easily via wire. However, there is always a risk of infection because power lines and signal lines are always in direct contact with human skin.

The third method is to install the battery inside the human body to get the power from the system. In this case, since the patient is completely independent of the outside of the human body, the daily life is possible, and there is an advantage of not being exposed to the outside. In this case, however, if a lot of power is required, the battery capacity increases or becomes insufficient, so that the procedure is impossible, and the battery has a finite lifespan. Therefore, the battery needs to be replaced by a method such as surgery before the end of life.

As can be seen in the above case, if the power required in the human body is small, and a neat movement is necessary, a method for semi-permanently supplying the power required by an artificial organ or a system was impossible.

Therefore, the main object of the present invention relates to a method of constructing an internal-type generator for a medical device that solves the above problems.

Another object of the present invention is to provide the necessary power to charge the battery of the device used in the human body.

In order to achieve the above object, according to an embodiment of the present invention, in the power supply for supplying the power required in the human body,

Planetary Gear Trains (Epicyclic Gear Trains) and generators with blades attached to the inside of the device isolated from the outside,

There is provided an internal-type generator which inserts the blood inlet and outlet of the power generation device between blood vessels existing in the human body to rotate the planetary gear using some of the pressure of the blood and move the generator by the force.

According to an embodiment of the present invention, in the power supply for supplying the power required in the human body,

It includes a planetary gear with a wing attached to the inside of the device isolated from the outside, a generator and a controller for controlling the amount of blood inflow,

Insert the blood inlet and outlet of the power generation device between the blood vessels existing in the human body to rotate the planetary gear using some of the pressure of the blood, and move the generator by the force of the power, if necessary to adjust the inflow of the blood An internal generator is provided that does not interfere with the flow of blood.

1A and 1B are front and side views of a spiral motion generator according to an embodiment of the present invention.

Figure 1c is an external view of a spiral motion generator according to an embodiment of the present invention from the front.

Figure 1d is an external view of a spiral motion generator according to an embodiment of the present invention from the side.

Figure 2a is a side view of a linear motion generator, according to an embodiment of the present invention.

Figure 2b is a side view of a linear motion generator having a blood inflow controller, according to an embodiment of the present invention.

Figure 2c is a front view of a linear motion generator, according to an embodiment of the present invention.

3 is a diagram illustrating a system requiring power using an in-house generator having a blood inflow controller, according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

10, 11: blood inlet and outlet

16: wings

22: external gear

12, 20, 21: Planetary gear

15: center gear

17: generator

18, 13: bearing

14: rotation center axis

31, 32, 33: control wing

19: outer case

1A and 1B show front and side views of a spiral motion generator according to an embodiment of the present invention.

In general, in the case of instruments or organs to be applied to the human body, the installation place is narrow and it is necessary to miniaturize the attached device. In the present invention, the planetary gear train is used to effectively rotate the small generator in a limited place.

Planetary gear trains are gear trains arranged concentrically on sun gears, ring gears and planetary gears. Planetary gear trains are used in aircrafts, automobiles, office equipment, machine tools, etc., which require smaller and lighter weights because they have smaller volume, input / output, and high power transmission efficiency than other gear trains. The structure of the simple planetary gear train consists of a ring gear, which is an internal gear, on the same side, and is composed of a sun gear that is engaged with the internal gear and is engaged with the planetary gear inside. The advantage is that the transmission load is distributed by using a number of planetary gears, so that the overall size can be reduced.When the planetary gears are arranged symmetrically, the radial loads of the planetary gears cancel each other, so that only axial loads are considered in bearing and frame design You may also In addition, the processing is easy, the contact speed is small, the frictional loss is reduced by the dispersion of the transmission load, the noise is reduced, and the efficiency is increased. In general, planetary gear trains are classified into three types.

First, planetary molding is the most common arrangement in which the sun gear and the carrier rotate, and the ring gear is fixed. Planetary gears rotate and rotate at the same time.

Next, in the star configuration, the sun gear and the ring gear rotate, and the carrier is fixed. The planetary gear rotates only, and the carrier is fixed and does not revolve.

Next, in the solar type arrangement, the carrier and the ring gear rotate and the sun gear is fixed so that the planetary gear rotates and revolves.

In the present invention, all of the above-described planetary arrangement methods can be used and can be determined according to the required rotation ratio and torque. In the invention example of FIGS. 1A and 1B, a method of miniaturizing a device by using a solar arrangement to place the sun gear 15 on the central axis 14 of the small generator 17 is used. In the example of the present invention, when the blood is introduced through the inlet 11, the inflow controller 31, 32, 33 controls the inflow amount and the inflowed blood through the wing 16 and the wing and the blood rotate together. Next, the rotational ratio and the rotational force are converted by the required amount through the planetary gear trains 22, 21, and 15 by the rotational movement of the blades to rotate the central axis of the generator. Rotating blood with the wing exits through outlet 10.

Figure 1c shows an external view of the spiral motion generator in front view according to an embodiment of the present invention. In the example of the present invention, the outside of the power generation device is completely sealed or blocked to isolate it from the outside, the material of the type used outside is made of silicon or metal harmless to the human body. The generated power can also be delivered to the required system through two wires.

Figure 1d shows an outline view from the side of the spiral motion generator, according to an embodiment of the present invention.

Figure 2a shows a side view of a linear motion generator, according to an embodiment of the present invention. In the example of the in-body generator of FIG. 2A, blood enters through the blood inlet 11 and travels straight through the outlet 10. Therefore, blood is rotated one step like the blades of the generator as shown in the example of Figure 1a, because it does not come out of the outlet and immediately discharges because it minimizes the damage or damage to blood components such as platelets on the wings Can be installed stably.

Figure 2b shows a side view of a linear motion generator with a blood inflow controller, according to one embodiment of the invention. As in the example of the present invention, since the amount of blood introduced is controlled through the controllers 31, 32, and 33, the amount of blood that is applied to the wing can be controlled.

Figure 2c shows a front view of a linear motion generator, according to an embodiment of the present invention.

3 is a diagram illustrating a system requiring power using an in-house generator having a blood inflow controller, according to an embodiment of the present invention. As can be seen in the example of the present invention, the blood flowing from the blood vessel 50 enters through the inlet port 55 to control the rotational force of the wing through the inlet controller and exit through the exit 56, the rotational force of the wing is converted to rotational motion through the rotational motion converter 51 Then, the speed is controlled by the converter 52 which converts the rotational speed by using the planetary gear train, and transmits the controlled rotational force to the shaft of the generator 53 to generate power. The power obtained from the generator is supplied to the system 54 which is needed in the human body, and the system adds a controller 57 for controlling the valve of the flow controller to control the flow of the flow in real time.

According to the configuration method of the internal-type generator for a medical device of the present invention, after converting the rotational motion to the wing and planetary gear using the blood pressure present in the blood vessels in the human body, by rotating the shaft of the generator by adding or subtracting the rotational speed as necessary Since it is a method of generating power, it is not limited in life like a conventional battery supply device and can be supplied semi-permanently because there is no electricity consumption. In addition, since there is a controller that controls the flow of blood, if used together with a battery, it can generate as much power as necessary to charge the battery and stop unnecessary power generation.

Claims (6)

In the method for manufacturing the internal-type generator for medical instruments, Between the blood vessels of the human body is inserted into a generator of a certain type that is cut off from the outside to convert the wing to rotational movement by blood pressure, and the incoming blood rotates in a spiral shape and then exits through the outlet, A method of manufacturing an internal-type generator that obtains the necessary power in the human body by rotating the generator after changing the rotational force and speed using a planetary gear train coaxial with the wing. In the method for manufacturing the internal-type generator for medical instruments, Between the blood vessels of the human body is inserted into a generator of a certain type that is cut off from the outside to convert the wing to rotational movement by blood pressure, and the incoming blood rotates in a spiral shape and then exits through the outlet, An inflow controller is installed at the blood inlet of the generator, and the blades are converted to rotational motion by the inflow blood pressure. A method of manufacturing an internal-type generator that obtains the necessary power in the human body by rotating the generator after changing the rotational force and speed using a planetary gear train coaxial with the wing. In the method for manufacturing the internal-type generator for medical instruments, Between the blood vessels of the human body is inserted into a generator of a certain type that is blocked from the outside to convert the wing to rotational movement by blood pressure, and the incoming blood goes straight through the outlet, A method of manufacturing an internal-type generator that obtains the necessary power in the human body by rotating the generator after changing the rotational force and speed using a planetary gear train coaxial with the wing. In the method for manufacturing the internal-type generator for medical instruments, Between the blood vessels of the human body is inserted into a generator of a certain type that is blocked from the outside to convert the wing to rotational movement by blood pressure, and the incoming blood goes straight through the outlet, An inflow controller is installed at the blood inlet of the generator, and the blades are converted to rotational motion by the inflow blood pressure. A method of manufacturing an internal-type generator that obtains the necessary power in the human body by rotating the generator after changing the rotational force and speed using a planetary gear train coaxial with the wing. The apparatus according to claim 1, 2, 3 or 4, wherein the obtained power includes a role of supplying electric power necessary inside the human body and a controller for controlling the flow rate. The apparatus of claim 1, 2, 3, or 4, wherein the obtained power is a device including a role of supplying power required inside the human body and a controller for controlling the flow rate, and the generated power requires power. A method of manufacturing a charger for supplying power to an energy storage device such as a battery while supplying the system directly.