Surgical apparatus
First Claim
1. A suction device comprising(a) a suction member having distal and proximal ends, an internal suction passage terminating at a suction tip at the distal end thereof;
- (b) an intermediate member having a connection part for connection to a source of suction, a suction bore that is connectable to the suction passage to form a suction line through the device and a controllable suction port; and
(c) an annular conduit which is narrow in one dimension and which connects the suction port to the suction line, and(d) wherein said suction member has an end part entering the suction bore and defining therewith said conduit.
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Accused Products
Abstract
A suction device is disclosed comprising a molded plastic handle having a suction bore therethrough and a spigot for connection to the hospital suction source. The device further comprises a probe having a suction passage therethrough and terminating in a suction tip. At its proximal end the probe is formed with a male thread which threadedly engages in internal threads provided at an enlarged entrance portion of the handle. The proximal end of the probe terminates in an end member which fits within a reception bore located between the front bore and the suction bore of the handle. The dimensions of the end member are such that there is an annular space between the reception bore and the end member and this space connects through an opening through the suction bore. The handle has a controllable suction port whereby the suction at the tip can be controlled. This port opens into the annular space downstream of the connection between the opening and the suction bore.
Various modifications including modifications for use with flexible catheters are also described.
92 Citations
19 Claims
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1. A suction device comprising
(a) a suction member having distal and proximal ends, an internal suction passage terminating at a suction tip at the distal end thereof; -
(b) an intermediate member having a connection part for connection to a source of suction, a suction bore that is connectable to the suction passage to form a suction line through the device and a controllable suction port; and (c) an annular conduit which is narrow in one dimension and which connects the suction port to the suction line, and (d) wherein said suction member has an end part entering the suction bore and defining therewith said conduit. - View Dependent Claims (2, 3, 4, 5, 13)
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6. A suction device comprising:
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(i) a suction member having distal and proximal ends, a tip at said distal end, and at said proximal end, a connection device including an end member, there being a suction passage through said suction member; (ii) an intermediate member having a suction bore therethrough, and connecting means connectable to a source of vacuum pressure so that the suction bore is subject to said vacuum pressure, the suction bore having a reception portion and a remainder portion, said reception portion receiving therein said end member so that there is an annular conduit formed therearound, which conduit connects with said remainder portion of said suction bore; and (iii) a controllable suction port leading from outside the intermediate member to the conduit and connecting with the conduit upstream of the connection between said conduit and said remainder portion of said suction bore. - View Dependent Claims (7, 8, 9, 10, 11, 12, 19)
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14. A suction device comprising
(a) a rigid nozzle having a suction passage therethrough and comprising (a.1) a suction tip at its distal end and (a.2) a connection means at its proximal end, the connection means including (a.2.1) a cylindrical body, and (a.2.2) a cylindrical end member of smaller diameter than said cylindrical body, (b) a rigid handle having a suction bore therethrough connecting to the suction passage, said handle comprising (b.1) an end connection whereby it is connectable to a source of suction, and said suction bore comprising (b.2) a reception portion and a remainder portion, said reception portion being of larger diameter than said end member and said cylindrical end member being axially received in said reception portion so that there is an annular conduit formed about the end member, said conduit having a small radial thickness and connecting to said remainder portion through a connection port means, and (c) a controllable suction port opening into said conduit from the handle exterior upstream of said connection port means.
Specification