Microminiature Implantable FM Telemetry Transmitter---无线遥测血压, 心电图及其它生理数据

Microminiature Implantable FM Telemetry Transmitter

  ^{Model FM-6 transmits flow pH, temp., pressure, digital or other hi-level signals
  Model FM-8 transmits ECG, EEG, EMG or other low-level signals}

  ^{＝十年来, 以上二种可植入的超微FM电讯号发射器己成功的应用于无线遥测血压, 心电图及其它生理数据, 不仅在制药研发中, 各科研院校的科学研究中, 而且在航天和军事研究应用中发揮了重要作用。}

^{Both model transmitters have been used very successfully in numerous industrial, military and aerospace applications.}  

Sample Electrocardiograms 遥测心电图实例

Taken from CRT scope (left) Taken from printed graph output (below)

Features:

General Description

Our transmitters are surgically implantable and can be used for transmission of biologic data from unrestrained animals. Subcutaneous implantation eliminates wires penetrating the skin and restraints associated with direct wire telemetry. Subminiature size permits implantation into small animals or into areas of the anatomy heretofore inaccessible.

Encapsulation

Transmitters are entirely encapsulated except for the gold terminal posts which are connected to the power source and electrode lead wires. The entire assembly must be further encapsulated before implantation. This can be done by potting in beeswax.

Reception

Transmitters are frequency modulated with an effective range up to 7 meters depending on intervening tissue and the quality of the receiver and antenna. Frequency response down to DC can be obtained from standard receivers by obtaining an output from the ratio detector.

Power Sources

Transmitters are powered by a single silver oxide cell of the type used in hearing aids and watches. A 3 volt lithium cell can be used to power a FM-6L or FM-8L Lithium button cells with solder tabs are available from Biotelemetrics.

Sensors & Electrodes

The extremely high input impedance of our transmitters permits their use with practically any sensor or electrode. pH or specific ion electrodes can be used with the FM-6 transmitter. Simple stranded or coiled wire electrodes can be used with the FM-8 transmitter for biopotential transmission.

Switching

These transmitters can be switched on and off with a miniature magnetically actuated latching reed switch. The switch becomes part of the implant and greatly extends the life of the power cell. Switches are available from Biotelemetrics.

Technical Specifications