| 摘要 |
A disposable shutoff valve apparatus used in conjunction with a surgical suction device having a suction nozzle for stopping the suction action and muffling the noise from the suction device during surgery. The apparatus includes an upper portion, a base portion and a flexible member. The base portion is provided with pressure sensitive adhesive material and covered by a peel-off cover which can be peeled off so that the adhesive material can be securely attached to a surgical drape around a patient during surgery or other stationary object. The suction nozzle of the suction device can be inserted into and through the open end of the suction chamber and passes through the upper retaining member such that the suction nozzle pulls the flexible member toward itself, and thereby the flexible member stops the suction action of the suction nozzle and muffles the noise from the suction nozzle of the suction device and further simultaneously grips the suction device within the suction chamber. The apparatus further includes an upper portion and a base portion. Once the two portions are attached together, a suction chamber is formed. The flexible member is installed and disposed within the suction chamber and secured thereto by two retaining members. The first end of the flexible member is held within the lower retaining member while the second end of the flexible member encompasses the upper retaining member and press-fitted and held by the two spaced apart transverse grooves respectively.
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