 Centrifuge rotor cover having container supports thereon |
| The present invention is directed to a fixed angle centrifuge rotor. The rotor has a body with a ... |
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| Penetrating endoscope |
| Accordingly, it is a primary object of the present invention to overcome the above-mentioned ... |
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| Tube connecting structure of endoscope |
| The present invention has been developed in view of the above-described circumstances, and has as ... |
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| Close clearance seal for rotatable therapeutic catheters |
| OF THE PREFERRED EMBODIMENT Referring generally to FIG. 1, the therapeutic catheter drive shaft 10 ... |
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| Doppler blood flow system and method using low frequency noise signal processing |
| In order to properly determine the rate flow of the blood flowing in tubing, a proper analysis of ... |
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| Low velocity aortic cannula |
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| Low velocity aortic cannula |
| Aortic cannulas are used to return blood to the aorta while the heart is by-passed during heart ... |
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| Magnet holder |
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| Method for adjustably restricting a body lumen |
| We claim: 1. A method for variably restricting a body lumen in a patient, comprising: guiding an ... |
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Protective tool for therapeutic material delivery device, cartridge for therapeutic material delivery device, and a therapeutic material delivery device
| Details |
Inventors: Hamazaki, Kuniharu; Otsuka, Tetsuya;
Assignee: Kawasumi Laboratories, Inc. (Tokyo, JP)
Primary Examiner: Winakur; Eric F.
Assistant Examiner: Veniaminov; Nikita R
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8'A) and a cap (61) or stopper (65) attached to a forward end of said cover for protecting the forward end of the outer tubular needle (2A), wherein said cover (8'A) is formed of a plurality of tubes (8'A1, 8'A2, 8'A3, . . . ) having different diameters that are formed so as to consecutively decrease from a forward place to the outer needle hub (2B) in a backward place, and said tubes are thereby connected such that the cover (8'A) is extendable in the longitudinal direction, and a cartridge for use with the therapeutic material delivery device permits direct calibration of a radioactive source charged therein and comprises a transparent cartridge body (8, 18, 38) that holds said therapeutic material (10) inside and permits external visual observation of the therapeutic material (10) and a shielding outer tube (9, 19, 39) that is fitted on an outer circumference of the cartridge body, is slidable in the longitudinal direction of said cartridge body and is made of a radioactive ray shielding material, said cartridge body (8, 18, 38) being exposable with said sliding of said shielding outer tube. |
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DETAILED DESCRIPTION What is claimed is: 1.
A cartridge for a therapeutic material delivery device, configured to enable external visual observation of the therapeutic material, the cartridge comprising: a transparent cartridge body that holds said therapeutic material inside and permits external visual observation of the therapeutic material and a shielding outer tube that is fitted on an outer circumference of the cartridge body, is slidable in the longitudinal direction of said cartridge body and is made of a radioactive ray shielding material, said cartridge body being exposable with said sliding of said shielding outer tube, wherein a forward end of said cartridge body is provided with a head portion, and a connector tube is supported through said head portion, and said connector tube is capped with a sheath having an opening portion formed therein, said sheath being made of a soft or elastic material and said opening portion having a smaller diameter than the outer diameter of the therapeutic material.
2.
The cartridge for a therapeutic material delivery device as recited in claim 1, wherein an engagement portion is formed in a backward end of the head portion provided in the forward end of said cartridge, an engagement portion is formed in the forward end of an outer tube, and these engagement portions are engageable with each other.
3.
The cartridge for a therapeutic material delivery device as recited in claim 1, wherein a stopper is attached to nearly a central portion of said head portion of said cartridge body, and said cartridge body and said outer tube are engageable with each other on the basis of a frictional resistance between said stopper and an inner circumference of forward end of said outer tube.
4.
The cartridge for a therapeutic material delivery device as recited in claim 1, wherein an outer circumference surface of said cartridge body is provided with a scale for checking a length or an amount of the therapeutic material charged inside said cartridge body.
5.
The cartridge for a therapeutic material delivery device as recited in claim 1, wherein an outer circumference surface of said cartridge body is provided with a scale having divisions starting at 0 cm at intervals of 1 cm for checking a length of the therapeutic material charged in said cartridge body and for calibration of the entire therapeutic material
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Heart Surgery 
