Elongated-member-driving apparatus – With means to assemble plural pieces of work
Patent
1988-01-28
1989-04-04
Yost, Frank T.
Elongated-member-driving apparatus
With means to assemble plural pieces of work
227DIG1, 128334R, B31B 100
Patent
active
048178470
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a surgical instrument for staple suturing, this having a central journal and a staple magazine that is secured to a handgrip, and a pilot head releasably secured at the end of the journal, this having a hemispherical outer surface and an anvil surface that is perpendicular to the axis of the journal and facing the staple magazine, said instrument being used to perform an anastomosis. The invention further relates to a stapling head for such an instrument.
2. Description of the Related Art
A staple suturing machine of this type is already known from U.S. Pat. No. 3,193,165. This instrument consists essentially of a cylindrical body having at one end a handle and a lever, in which a journal is received so as to be axially displaceable. At the end of the cylindrical body that is opposite the handle there is a staple magazine with a circular scalpel. The magazine contains stainless steel staples. A hemispherical pilot head is secured at the end of the journal. In order to perform an anastomosis, a purse-string suture is made at the the ends of, for example, the intestine ends that are to be joined. The staple suturing instrument is then introduced through an opening made in the side of one of the intestine ends, to the point that the tip of the pilot head emerges. Once the pilot head has been distanced slightly from the staple magazine, one end of the intestine is passed around the staple magazine and the other intestine end is passed around the pilot head and knotted about the journal by the purse-string suture. Next, the joining process is initiated, in that the pilot head is pressed against the staple magazine and the staples are forced into the structures that are to be anastomised. At the same time, the ends of the intestine with the sutures are separated by the circular scalpel. However, this known procedure entails the disadvantage that the whole of the pilot head has to be introduced through the purse-string suture of the second intestine end. The difficulty lies primarily in the difficulty of passing the second end of the intestine with the purse-string suture over the pilot head without damaging either the purse-string suture or the intestine.
It is the task of the present invention to produce a staple suturing instrument by which, while avoiding the disadvantages set out above, a relatively simple and problem-free introduction of the staple magazine and the pilot head into the required end of the organs to be anastomised is made possible.
SUMMARY OF THE INVENTION
According to the present invention, this task has been solved in that the pilot head can be connected through a push-type or threaded connector with the end of the journal, or with a cap that covers the staple cinching surface and surrounds the push-type connector with a curved outer surface. Because of the arrangement of the cap, the pilot head can be slid without any problem through the organ that is to be anastomised. Because of the push-type connector, once the pilot head has reached the required position at the end of the organ, the cap can be released both simply and rapidly, and the staple magazine and the pilot head can be connected just as easily and rapidly.
According to a further advantageous variation of the invention, it is foreseen that thepush-type connector is configured as a bayonet fastening. A connector of this type is particularly well suited as a push-type connector, since only a very slight rotation of the parts to be connected is needed in order to produce a firm and reliable connection.
According to a further advantageous embodiment of the present invention it is foreseen that the push-type connector is configured as a journal that is connected with the pilot head and has a mushroom end and a locating pin that extends perpendicularly to the longitudinal axis of the journal, and as a socket that can be connected with the end of the journal and which has a circlip and a slot. A push-type connector of this kind is particularly adv
REFERENCES:
patent: 3193165 (1965-07-01), Akhalaya et al.
patent: 4574806 (1986-03-01), McCarthy
patent: 4606343 (1986-08-01), Conta et al.
patent: 4667673 (1987-05-01), Li
Munchow Karl H.
Redtenbacher Michael
Brown Laurence R.
Finanzaktiengesellschaft Globe Control
Mangels Alfred J.
Wolfe James L.
Yost Frank T.
LandOfFree
Instrument and a procedure for performing an anastomosis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Instrument and a procedure for performing an anastomosis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrument and a procedure for performing an anastomosis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-174000