초록 ▼

A delivery device for depositing an exogenous fibrin clot into a wound site during an arthroscopic surgical operation. The delivery device having a tubular body and plunger. The body including a large internal diameter collection chamber and a small internal diameter ejection chamber with an interna

A delivery device for depositing an exogenous fibrin clot into a wound site during an arthroscopic surgical operation. The delivery device having a tubular body and plunger. The body including a large internal diameter collection chamber and a small internal diameter ejection chamber with an internal frusto-conical transition chamber positioned therebetween. The plunger having a rear tamping knob on one end and an ejection tip on the other end. The rear knob having a matching frusto-conical portion used for tamping the fibrin clot material from the collection chamber into the ejection chamber. The tip of the plunger being insertable into the injection chamber to push the fibrin clot material out of the delivery device. The plunger also having a forward stop knob which limits the depth of insertion of the plunger into the body. The tip of the plunger when fully inserted extends axially beyond the end of the ejection chamber. A method of depositing a fibrin clot material into a wound site during an arthroscopic operation is also disclosed.

대표청구항 ▼

A delivery device for depositing an exogenous fibrin clot into a wound site during an arthroscopic surgical operation comprising: a hollow body having a first large internal diameter cylindrical section constituting a collection chamber, a second smaller internal diameter cylindrical section constit

A delivery device for depositing an exogenous fibrin clot into a wound site during an arthroscopic surgical operation comprising: a hollow body having a first large internal diameter cylindrical section constituting a collection chamber, a second smaller internal diameter cylindrical section constituting an ejection chamber; and an internal frusto-conical shoulder formed between the first and second cylindrical sections and opening toward the internal area of the collection chamber; a plunger having a cylindrical handle means, an enlarged diameter cylindrical knob on one end of the handle means, a plunger rod axially extending from the knob, and a cylindrical tip positioned at the remote end of the plunger rod, the knob having an outside diameter slightly smaller than the internal diameter of the collection chamber of said hollow body, the plunger tip having an outside diameter slightly smaller than the internal diameter of the hollow body ejection chamber, and the axial length of the plunger rod and tip being longer than the axial length of the hollow body ejection chamber such that upon insertion of said plunger into the hollow body the plunger tip will extend axially outside the ejection chamber when the knob of said plunger abuts the internal body shoulder; and the handle means of said plunger having a cylindrical tamping means positioned at the remote end of the handle means, the tamping means having a frusto-conical surface facing away from the knob of the handle means such that if said plunger is inserted tamping means first into said hollow body the frusto-conical surface of the tamping means will be facing towards the internal frusto-conical hollow body surface.