JPH03188843A - Tool for anastomosing living organ - Google Patents

Abstract

PURPOSE:To efficiently anastomose hollow living organs together by providing a projecting portion comprising one end of a tubular body partially extended, and boring in the tubular body one or more than two holes for passing suturing thread therethrough. CONSTITUTION:An anastomosing tool 1 is tubular and has one end partially extended and formed into a projecting portion 2 and two holes 3 are bored near the end portion of the tool 1 opposite to the projecting portion 2 and from the right and wrong sides of the tool 1. To anastomose hollow living organs, the anastomosing tool 1 is fitted over the outside of one living organ 4 in such a manner that the side of the tool 1 opposite to the portion where the projecting portion 2 is provided is located on the side of the end portion of the living organ. After the projecting portion 2 and the living organ 4 are held together by a surgery tool 6 a suturing thread 7 is passed through the holes 3 and the tool 1 is sutured to the living organ whereby the anastomosing tool 7 and the living organ 4 are fixed together. The end portion 5 of the living organ 4 is reversed and has its inner surface turned to the outside and is laid on the anastomosing tool 1 and the end portion 9 of the other living organ 8 is fitted over the end portion 5 and the end portions 5 and 9 are tied together by a suturing thread 10 from above. Finally the surgery tool holding the anastomosing tool 1 and the living organ 4 is detached so that operation of anastomosing the living organs is completed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is for supporting the anastomosis by inserting it into the anastomotic part when anastomosing hollow living organs such as blood vessels and intestinal tracts. Regarding medical equipment used for.

[Conventional technology]

As a method for anastomosing hollow biological organs such as blood vessels and intestinal tracts, the method of simply suturing the anastomosis with suture thread has been used for a long time. There were many difficulties associated with vessels of this diameter. Therefore, surgery requires experience and skill.
There was a problem that it took a long time. Therefore, in order to improve such problems, Japanese Patent Application Laid-Open No. 61-217170
No. 6,129,720 discloses additional instruments for assisting anastomosis operations. Since these instruments are made of bioabsorbable materials, they maintain their strength until the living organs fuse together after surgery, and they disappear after a certain period of time, so they have the advantage of not remaining as foreign matter in the living body. be.

[Problem to be solved by the invention]

The present inventors performed anastomosis experiments on animals using conventional instruments for anastomosis of living organs, and found that the instruments were easy to slip against the living organs, so that the instruments were always kept in the proper position during the anastomotic operation. It was difficult to keep it. Therefore, it was found that the anastomosis could not be performed efficiently and the surgical time could not be reduced much.

An object of the present invention is to provide a living organ anastomosis instrument that allows efficient anastomosis.

[Means to solve the problem]

In the present invention, in order to achieve the above object, a protrusion is provided at one end of the anastomosis instrument for gripping the anastomosis instrument with a surgical instrument when performing an anastomosis operation.

Moreover, as a more preferable embodiment, by making a hole in the anastomosis instrument so that it can be sutured together with the living organ, the instrument and the living organ can be reliably fixed not only during anastomosis but also after the anastomosis. did.

That is, the first invention of the present application is a cylindrical instrument that supports the anastomotic part of the living organs to assist the anastomosis when hollow living organs are anastomoses, and the instrument partially connects one end of the cylindrical body. This is an instrument for anastomosis of living organs, characterized by being provided with an extending protrusion. Further, the second invention is the first invention,
This is a living organ anastomosis instrument characterized by having a cylindrical body with one or more holes for passing suture threads.

[For production]

When using the anastomosis device of the present invention, as shown in Fig. 2, the anastomosis device of the present invention is fitted around the outer periphery of one of two biological organs to be anastomosed, and the anastomosis device of the present invention is attached to one end of the device. The protrusion and vital organ are grasped and secured together with a surgical instrument. If the cylindrical body has a hole for passing a suture thread, the suture thread is passed through the hole and sutured to permanently fix the instrument and the living organ. Next, the end of the living organ is inverted and placed over the anastomosis instrument of the present invention, and the other living organ is fitted onto F to bring the inner surfaces of the organ into close contact, and the suture is threaded over it. Tie it up with etc. Finally, the surgical instrument grasping the anastomosis instrument and the living organ is removed, and the anastomosis operation is completed. In this way, anastomosis between hollow biological organs can be performed efficiently and reliably.

〔Example] An embodiment of the anastomosis instrument of the present invention is shown in FIG.

As shown in the figure, the anastomosis instrument 1 has a cylindrical shape, and one end is partially extended to form a protrusion 2.

In this embodiment, the protrusion 2 has a partial circumference of 1/3 and the length is the same as the length of the main body, but the shape is not limited to this, and may be rod-shaped or plate-shaped. You can. In short, it only needs to have a width and length that can be grasped together with the living organ. Furthermore, near the end opposite to the protrusion 2, two holes 3 are bored on the front and back sides. The position and number of holes may be any suitable for suturing and fixing the anastomosis instrument 1 to a living organ, and preferably about 2 to 4 holes are provided near the end. The size of the hole also
Any material that can be used to pass sutures is sufficient.

FIG. 2 shows the procedure for anastomosing hollow biological organs using this anastomosis instrument. As mentioned above, first, the negative biological organ 4
The anastomosis instrument 1 of the present invention is inserted into the outside of the organ so that the side opposite to the side on which the protrusion is provided is the end of the living organ (FIG. 2a). After grasping the protrusion 2 and the living organ 4 together with the surgical instrument 6 (FIG. 2b), the suture thread 7 is passed through the hole 3 and sutured to the living organ (second
In Figure c), the anastomotic instrument of the present invention and the biological organ 4 are fixed. Next, the end 5 of the living organ 4 is inverted and stacked on the anastomosis instrument 1 with the inner surface facing outward (Fig. 2 d), and the end 9 of the other living organ 8 is further extrapolated and stacked. Then, tie the suture thread 10 from above (Fig. 2C). Finally, the surgical instruments gripping the anastomosis instrument 1 and the biological organ 4 are removed, and the anastomosis operation is completed. If an anastomosis is performed using such a procedure, the anastomosis operation can be completed in a short time, which is convenient when it is necessary to anastomose blood vessels as quickly as possible, such as in organ transplantation.

The anastomotic device of the present invention is preferably constructed of bioabsorbable material since there is no need to take it out later. Suitable bioabsorbable materials include various aliphatic polyesters, chitin, collagen, and polyamino acids. More specifically, aliphatic polyesters include glycolic acid, lactic acid, and β-hydroxybutylcarboxylic acid.

β-hydroxyvalerate, β-propiolactone, T
-butyrolactone, T-valerolactone.

δ-valerolactone, δ-cabrolactone, ε-caprolactone, methyl-ε-caprolactone 2p-dioxanone, methyl-p-dioxanone.

Examples include pomopolymers and copolymers obtained by polymerizing dimethyl-p-dioxanone and the like. As a method for manufacturing the anastomosis device of the present invention from these polymers, it is possible to adopt a melt molding method represented by an injection molding method or a solution molding method in which a polymer solution is shaped and dried and solidified. can.

〔Effect of the invention〕

When living organs are anastomosed using the anastomosis method described above using the anastomosis instrument of the present invention, the anastomosis can be performed easily and quickly. Since the protrusion is provided at the end of the anastomosis instrument, the anastomosis operation can be performed by easily grasping and fixing the instrument and the living organ with the surgical instrument. Therefore, it is possible to perform a quick and reliable anastomosis, which has the advantage of increasing the safety of the surgery, shortening the surgical time, and reducing the burden on the patient. Further, when the biological organ is a blood vessel, grasping the protrusion simultaneously closes the blood vessel and stops bleeding, which is convenient.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the anastomosis instrument of the present invention, and FIGS. 2a to 2e are perspective views showing the procedure for anastomosing biological organs using this instrument. ■, Anastomosis instrument 2. Projection 3, hole

Claims (2)

[Claims] (1) A cylindrical instrument that supports the anastomotic part of the living organs and assists the anastomosis when hollow living organs are anastomosed together, and is provided with a protrusion that partially extends one end of the cylindrical body. A device for anastomosis of biological organs characterized by: (2) The device for anastomosis of living organs according to claim 1, wherein the cylindrical body has one or more holes for passing suture threads.