Surgical staple inserter

Details Surgical staple inserter Surgical staple inserter

1993-01-29

1994-09-13

Rada, Rinaldi I.

Elongated-member-driving apparatus

Surgical stapler

With magazine

227 19, A61B 17115

Patent

active

053461150

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The invention relates to a surgical staple inserter intended to join two ducts consisting of a vessel and a tubular vessel prosthesis, of the type including a first part, called the internal part, intended to be received inside the ducts, and a second part, called the external part, remaining outside the ducts. One of the two parts of the staple inserter includes a staple holder which contains a series of staples disposed in at least one ring with their points oriented radially, and means for ejecting these staples. The other part of the staple inserter includes an anvil. The staple inserter includes means for radially spacing apart the anvil and the staple holder with respect to their relative working positions.
The human body includes several types of organic ducts, such as for example the organs of the digestive system or of the circulatory system. During a surgical operation, there may be a need to suture two parts of sectioned organic ducts together, for example following partial ablation of the duct.
In the case of vessels, which are difficult to suture, it is known to join a tubular prosthesis to the ends of the vessels. The wall of the prosthesis is more flexible than that of the vessel, which allows easier manipulations. It is thus possible to join the two parts of vessels by first joining a vessel prosthesis end to each of the vessel ends, then by subsequently joining the two vessel prosthesis ends by known manual or mechanical means.
However, in the current art, suturing of the ends of the vessels must be performed manually by stitching.


SUMMARY OF THE INVENTION

The object of the invention is to allow mechanical sutures to be made in a convenient and secure manner by means of staples on relatively rigid organic ducts, such as blood vessels.
For this purpose, the subject of the invention is a surgical staple inserter of the aforementioned type, characterized in that a tubular vessel prosthesis is placed over a portion of the internal part of the staple inserter, and in that points for holding the prosthesis in place project on this internal part.
It is to be noted that the prior art describes staple inserters with rings of staples which have points oriented radially (GB-A-2,038,226, FR-A-2,171,477), but that these known staple inserters do not allow a vessel and a vessel prosthesis to be joined up conveniently inside the human body.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail hereinbelow with reference to the attached drawings, in which:
FIG. 1 is a longitudinal section of a staple inserter according to the invention;
FIG. 2 is an elevation view of a general arrangement of the staple inserter;
FIG. 3 is a partial perspective view of protruding supports defining an anvil;
FIG. 4 is a partial longitudinal section of the staple holder;
FIG. 5 is a view of half of an anvil sector along the arrow 5 in FIG. 4;
FIG. 6 is a partial perspective view of an internal part of the staple inserter showing the arrangement of staple ejection orifices;
FIG. 7 is a section along the line 7--7 in FIG. 4;
FIG. 8 is a section along the line 8--8 in FIG. 4;
FIG. 9 is a partial longitudinal section of a varied embodiment of the staple holder;
FIG. 10 is a section along the line 10--10 in FIG. 9;
FIG. 11 is a section along the line 11--11 in FIG. 9;
FIG. 12 is a partial perspective view of an internal part of the staple inserter showing the arrangement of staple ejection orifices according to a variant of the invention;
FIG. 13 is a front view of a staple ejection orifice according to such variant of the invention;
FIG. 14 is an exploded view of a second embodiment of the staple inserter according to the invention;
FIGS. 15 to 18 are elevation views partially in section illustrating the operation of the staple inserter in FIG. 14;
FIGS. 19 and 20 are half sections on an enlarged scale taken respectively along the lines 19--19 and 20--20 in FIG. 18;
FIG. 21 is a partial axial section of a distal end part of the same sample inserter on an even larger s

REFERENCES:
patent: 3519187 (1970-07-01), Kapitanov
patent: 4304236 (1981-12-01), Conta et al.
patent: 4872874 (1989-10-01), Taheri
patent: 4930674 (1990-06-01), Barak

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