JPS6058137A - Operation clip and clip grasping forcept - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention reduces the volume of the gripping portion of a surgical clip (hereinafter simply referred to as a clip), makes it possible to attach/detach the clip and change the clip gripping angle reliably and easily, and is applicable to various types of surgical clips. The present invention relates to a surgical clip and clip grasping forceps that are capable of adding a large number of grasping parts having arbitrary angles and shapes.

In recent years, with the development of surgical techniques, more advanced surgeries have been performed, one of which is surgery for cerebral aneurysms performed using a microscope. Normally, aneurysm surgery is extremely difficult because there is always a risk of major bleeding due to intraoperative rupture, and requires great care and advanced technique.In addition, aneurysm surgery is extremely difficult because there is always a risk of major bleeding due to intraoperative rupture, and requires careful attention and advanced techniques. There should be no blockage or blockage, so all surgeries are performed at 6
Performed under a microscope with ~20x magnification. However, in 2), there are some limitations on the surgical equipment used for such microsurgical operations under a microscope, but due to the combination of conventional clips and clip forceps, During the operation of aneurysm (chryso pink), there was a small point between the two. Namely.

■ Although there are clips of various shapes and sizes, with conventional clip grasping forceps, depending on the location of the aneurysm, the clip cannot be directed in the desired direction, making clipping completely impossible. Sometimes.

■ The thick tip of the clip grasping forceps significantly obstructs the field of view.

■ If the direction of clipping the aneurysm and the operator's dominant hand do not match, the operation becomes uncertain and it may not be possible to safely clip the aneurysm.

etc.

Conventionally, clips that have been widely used in surgical operations, particularly in the field of neurosurgery, to treat aneurysms, hemostasis in blood vessels, occlusion of blood vessels, etc., are shown in Figures 1 and 2, for example.
, (Row 1, 2) and (Bar 1.2), which have a shape in which the thin golden wire is appropriately bent or curved (models such as Yazagill, meter, and bulging type), and They can also be distinguished by mechanical differences, such as the positional relationship of the part C made of a long and thin metal plate as shown in Figure 1). In addition to the shapes shown in Fig. 1, there are also shapes that are curved in an arc in the vertical and horizontal (horizontal) directions, including changes in dimensions and angles. There are dozens of types, including those bent like a J-shape, a J-shape, or a bayonet-shape.

On the other hand, to operate such a lip in a narrow space, a dedicated button T- (models such as Yazagill, expansion type, Jiro, Sano type, FM type, etc.) is usually used.

As shown in Figure 2 (a), center) and e→, the forceps consists of a gripping part d, a connecting part (fulcrum) e, and a handle f, and a part C between which the force of the clip is applied is located between the gripping part d. When you grip the handle f with your hand, the part C that applies force is pressed and the blade part a opens, and when you loosen your hand, the blade part a of the clip closes, and when you loosen your hand again, the handle part When f is opened, the clip leaves the grip part d. Here, the structure of the handle part f is as shown in FIGS. A pair of clasps (escapes) g are provided, and when these clasps g are connected, the clip can be held continuously with the blade portion a open, or As shown in Figure 2 (b),
There is a ring through which the fingers pass like the handle of scissors, and the opening and closing movement of both handles.
There is a type of mechanism in which the mechanism 1 between the coupling part e and the grip part d is linked to one or both arms of the grip part d to open and close the grip part d.

The first tip of the gripper d is shown in Figure 2 (A).
As shown in (c) and FIGS. 3(a) and 3(b), grooves d are provided on both inner surfaces of the gripping portion d, the shape of which is approximately the same as the curvature of the portion C that applies the force of the clip, or As shown in Fig. 2 (B) and Fig. 3 (C), a type has been developed that is equipped with a rotor d2 that supports the curved portion of the clip force applying portion C from both sides. There is.

However, when the groove d is provided on the inner surface of the gripper d, the angle of the clip gripped by the groove d is limited only to the direction of the groove d1. A structure has been developed in which a curved or bent portion is provided in part f to allow the angle to be changed. For example, one Sano-style clip forceps has two types of horns, one of which is basically the same as the bulging type, or can be bent in the front-back direction at each point at the handle part f and jaw part d. The other one has a bent part (hinge b) in the anteroposterior direction only at the handle f. Grip part d
This type is equipped with a rotation T-d2 similar to the FM type. These types of forceps, especially the former type, have thick tips that not only obstruct the surgical field during surgery under a microscope (6 to 20 times magnification), but also make it difficult to fine-tune the angle. There are many practical difficulties. Therefore, it is inconvenient that a large number of clips of various shapes, sizes, and angles as described above must be kept on hand at all times. Furthermore, the latter type, that is, the one in which the rotor d2 is provided inside the gripping part d, is far superior to the former type in that the angle can be changed arbitrarily;
With the installation of the rotor d2, the volume of the gripping part d further increases, which of course causes a serious hindrance due to the obstruction of the surgical field. The direction of the clip and the direction of the rotor d2 had to be matched each time, and the left and right rotors d2 rotated separately, which made the process even more complicated and caused the aneurysm to rupture during the surgery. In such an emergency situation, a delay of a few seconds caused by one of these steps could delay clipping, leading to irreversible consequences.

The present invention has been made in view of the current situation, and includes: (1) A surgical clip characterized in that protrusions are formed on both sides of the part where a force is applied to open the blade part. .

and (2) < The feature is that a hollow or small hole is provided at the tip of the inner side of the grip portion to fit the protrusions formed on both sides of the portion where force is applied to open the blade portion of the surgical clip. Clip grasping forceps.

It provides: Hereinafter, details of the present invention will be described using drawings showing embodiments.

Regardless of the shape or size, the clip used in this invention has a blade part a, a force applying part C, and a spring (fulcrum), as already illustrated in FIGS. ) on the same side of the part, or, as illustrated in FIG. 1, on different sides]. This protrusion 1
There are no particular limitations on the shape as long as it is cylindrical, conical, hemispherical, or similar in shape; however, since it is used in a special location, the tip and periphery of It is desirable to have a rounded shape that does not cause any harm to the organization. As shown in Fig. 4 (B), in the case of a clip in which the portion C to which force is applied is made of a wide plate, the stability of gripping the clip can be improved by positioning the protrusion 1 one point in the middle of the width. preferable.

Finally, if the gripping part d of the forceps of the present invention is composed of a pair of thin round rods made of a material with high rigidity, it is advantageous in that the field of view can be made as wide as possible, and It goes without saying that it is preferable that all the surfaces be flat in order to obtain stability and smooth rotation when gripping the clip. As shown in the figure, a recess or small hole 2 into which the protrusion 1 of the clip is fitted is provided. This depression or small hole 2
may be a recess that does not penetrate through the hole, or a small hole that penetrates through the hole, or may be partially or entirely tapered. Of course, if the entrance diameter of the recess or small hole 2 is equal to or slightly smaller than the root diameter of the protrusion 1 of the clip, the clip can be gripped reliably.

Note that if the protrusion 1 of the clip is conical or similar, it will be easy to push or fit into the small hole 2, and if it is a hollow or a small hole through which the small hole 2 passes, it will be easier to insert the clip into the small hole 2. Cleaning, disinfection, etc. after use is also easy, which is preferable. Here, although FIG. 6(a) shows an example of a forceps having an X-shape in which the gripping part d, the connecting part e, and the handle part f are in a straight line, the forceps are not limited to this type. For example, it may be of a double-■-1 character shape as shown in FIG. 6(b).

Furthermore, there is no problem even if the gripper d has one or both arms that open and close as shown in Fig. 2 (b), and the mechanism (structure, shape,
There are no restrictions on the shape of the gripper d (dimensions, etc.), and the shape of the gripper d can be easily changed to, for example, a parallel front type, a parallel rear type, an oblique front type, or an oblique rear type. In combination, a forceps of any shape can be obtained by appropriately combining the gripper part d, O, and handle part f.

As mentioned above, the forceps of the present invention, regardless of the type of clip that has been widely used in the past, has protrusions 1 on both sides of the part C that applies force to open the blade part a. It is possible to make full use of the clip if it has a shape like this, and the degree of gripping of the clip can be changed freely, easily, and reliably at any time. Even if you keep clips and forceps on hand, you will no longer encounter an impossible surgery, and furthermore, the structure of the gripping part d of the forceps T of this invention is extremely simple. The volume of the clip when gripped becomes extremely small, which contributes to widening the field of view, so it can be said that the significance of this invention is extremely large.

[Brief explanation of the drawing]

(E1), (Rho1) and (Bar1) in Figure 1
) are plan views for illustrating the shape of the clip,
The figures of (E2), (Rho2) and (/・-2) are
(E1), (0-1), and (bar 1), respectively, are side views, and (A) are perspective views for illustrating the shape of the clip. ) are perspective views for illustrating the shape of the clip grasping forceps;
Figures (A), (C), and (E) are perspective views illustrating the state in which the forceps grip the clip, and Figures (B) and (E) are the same as (B). and (C), an enlarged perspective view of the main parts, (E1) and (Rho1) in No. 4.
) and (bar 1) are plan views for illustrating the shape of the clip of the present invention, and (E2), (row 2) and (bar 2) are respectively (E1), (Row 1) Figure 5 (A) is a perspective view showing a state in which a small hole is provided at the tip of the forceps. Disconnection I/M that exemplifies the state of
&l, FIG. 6 is a perspective view (A) and a partially cutaway side view (B) illustrating the state when the forceps of this invention or the clip of this invention is gripped. a.Blade part, 1]...Spring (fulcrum) part, C.
・Part where force is applied, d...Gripping part, d...Groove, d
2... Rotor, e/Joint part (fulcrum), f... Handle,
g.. Fastener, 1].. Hinge, 1.. Protrusion, 2.. Indentation or small hole Special Fl Applicant: Funatsu Bidou Agent: Ken 11 Sentence 2\V Figure 2 (d) Figure 5 (B) Figure 6 Procedural Amendment Act 1978 [2JjlQ 1-1 Patent Office Commissioner Kazu Wakasugi '$'' 1 Display of the case 1982 43' Application No. 166340 February 2 Name of the invention clip and clip grasping forceps 3 Relationship with the case of the person making the amendment 1-1 revision application i person fl- location 15-4 Doyama-cho, Kita-ku, Osaka-shi Act 10
No. 08 Name Noboru Funatsu (J office 5421-1i Minami-ku Nipponbashi 1q Nimoku 3sensuben 57 City Shoseimei) Date November 1982 311. l (date of submission) 6, number of inventions increased by amendment 7, subject of amendment ``1゛ □! Figure 4.

Claims (2)

[Claims] (1) A surgical clip characterized by having protrusions formed on both sides of the part where force is applied to open the blade part. (2) A clip gripping device characterized in that a recess or a small hole is provided at both inner tip portions of the gripping portion into which protrusions formed on both outer sides of the portion where force is applied to open the blade portion of the surgical clip are fitted. forceps.