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Medical pump and medical treatment device

A liquid delivery device and medical technology, which is applied in the fields of medical liquid delivery device and medical disposal device, can solve problems such as bubble bursting, and achieve good responsiveness

Active Publication Date: 2013-05-22
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the generated air bubbles collapse due to the force acting when the pressure near the front end surface increases (compression)

Method used

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  • Medical pump and medical treatment device
  • Medical pump and medical treatment device
  • Medical pump and medical treatment device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0037] Reference Figure 1 to Figure 8 The first embodiment of the present invention will be described. figure 1 It is a diagram showing the medical liquid delivery device 1 of this embodiment. Such as figure 1 As shown, the medical liquid delivery device 1 includes an insertion portion 2 inserted into a body cavity, and a holding portion 3 provided on the proximal direction side through the insertion portion 2. The insertion portion 2 is formed elongated along the long side axis C. One end of the cable 4 is connected to the holding part 3. The other end of the cable 4 is connected to the control unit 5. The control unit 5 is electrically connected to the liquid feeding unit 6, the suction unit 7 and the input unit 8.

[0038] figure 2 It is a figure which shows the internal structure of the insertion part 2. Such as figure 2 As shown, a liquid feeding tube 11 is extended along the long side axis C inside the insertion portion 2. The tip of the liquid feeding tube 11 is e...

no. 2 approach

[0082] Next, refer to Figure 11 to Figure 21 The second embodiment of the present invention will be described. The second embodiment is an embodiment obtained by deforming the structure of the first embodiment as follows. In addition, the same reference numerals are given to the same parts as those of the first embodiment, and the description thereof is omitted.

[0083] Picture 11 It is a figure which shows the medical treatment apparatus 31 of this embodiment. The medical treatment device 31 is a bipolar forceps that uses an ultrasonic probe 33 (described later) and a jaw 52 (described later) as electrodes to treat biological tissues using high-frequency current. In addition, the medical treatment device 31 is also used as an ultrasonic suction device, which uses the cavitation phenomenon caused by liquid delivery and ultrasonic vibration to selectively shatter and resect biological tissues, and suction and resect After the organism tissue. Such as Picture 11 As shown, t...

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PUM

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Abstract

A medical pump is provided with a path-regulating unit which regulates a linking path that links a pumping path and a suction path; a pumping unit which, by discharging a liquid into the pumping path at a discharge rate greater than or equal to a reference discharge rate, generates a state in the pumping path whereby there are never any components missing from the liquid in the pumping direction as far as the linking path; and a suction unit for carrying out suctioning via the suction path. The medical pump is further provided with a control unit, which, by controlling the suctioning rate of the suction unit on the basis of a switching operation with a pump mode input part, adjusts the in-flow rate of the liquid, which flows into the suction path from the pumping path via the linking path, between a pumping on mode and a pumping off mode.

Description

Technical field [0001] The present invention relates to a medical liquid delivery device and a medical treatment device used in the treatment of biological tissues and the like. Background technique [0002] Patent Document 1 discloses an ultrasonic treatment device that performs treatments such as ultrasonic suction and ultrasonic coagulation incision. Generally, in the treatment of ultrasonic suction, the liquid is fed in order to effectively disrupt and emulsify the body tissue. By feeding the liquid, the physical phenomenon of cavitation is efficiently generated. Specifically, the ultrasonic probe repeats high-speed vibrations tens of thousands of times per second by ultrasonic vibration, so the pressure periodically fluctuates near the tip surface of the ultrasonic probe. When the pressure in the vicinity of the tip surface is momentarily lower than the saturated vapor pressure due to pressure fluctuations, minute bubbles (cavities) are generated in the liquid transported ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B18/00A61B18/12
CPCA61B2018/00994A61M1/0058A61B2218/007A61B2217/005A61B2018/00744A61M1/00A61B18/1445A61B2218/002A61B17/320092A61B2018/00863A61B2217/007A61B2018/00642A61B17/34A61B2017/320071A61B2017/320089A61B2017/320095A61B2017/320069A61B2017/32007A61M3/0283A61M1/77A61M3/0202
Inventor 铜庸高本间聪
Owner OLYMPUS CORP