JP2000139930A - Injection needle type suturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an injection needle type suturing device capable of sticking the sticking part of the tip of a hollow needle portion without lifting an affected part to be sutured and with natural wrist movement. SOLUTION: In an injection needle type suturing device provided with an injection needle shaped hollow needle portion 1 having a sticking part 1a in its tip, a gripping portion 2 for attaching the base end of the hollow needle portion 1, a thread housing portion 3 provided in the gripping portion 2, and a suturing thread 4, the tip thereof housed in the thread housing portion 3 being passed in the hollow needle portion 1 and led out at the sticking part 1a, the hollow needle portion 1 is bent, and the base end part 1b of the hollow needle portion 1 is attached to the gripping portion 2 so as to be detached in the direction of intersection between the axial center C2 of the base end part 1b and the axial center C1 and so as to be changed in angle around the axial center C2 of the base end part 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle suturing device suitable for suturing an affected part such as a cut or a tear.

[0002]

2. Description of the Related Art FIG. 4 shows the structure of a conventional injection needle type suture instrument of this type. This injection needle type suture instrument was fixed in a direction parallel to the base end of the hollow needle portion 1 with a linear hollow needle portion 1 made of metal having a piercing portion 1a at the distal end and formed into an injection needle shape. A grip portion 2 made of resin, a yarn storage portion 3 provided as a cavity in the grip portion 2, and a tip portion 4 a stored in the yarn storage portion 3 and pierced through the hollow needle portion 1. 1a
And a lid 5 fitted to the rear end of the grip portion 2 to open and close the rear end of the thread storage portion 3.

[0003]

However, in the conventional injection needle type suturing device, since the hollow needle portion 1 is generally formed in a straight line, when suturing an affected part, the affected part to be sutured is lifted. The hollow needle portion 1 must be penetrated through the affected part, and there is a problem that operability of suturing is poor.

The hollow needle 1 has been proposed to be curved, but the grip 2 fixed to the hollow needle 1 is fixed in a direction parallel to the base end of the hollow needle 1. Therefore, when penetrating the piercing portion 1a of the curved hollow needle portion 1 with respect to the diseased part to be sutured, not only the wrist is largely bent, but also the wrist, the elbow and the arm are greatly moved,
There was a problem that suturing workability was poor.

[0005] Further, the conventional injection needle type suture device does not have a structure in which the hollow needle portion 1 made of metal and the grip portion 2 made of resin are separable, so that the hollow needle portion 1 and the grip portion 2 are discarded after use. There was a problem that it was not possible.

SUMMARY OF THE INVENTION An object of the present invention is to provide an injection needle type suturing device capable of penetrating a puncture portion at the tip of a hollow needle portion into a diseased part without lifting the diseased part to be sutured and with a slight movement of a wrist. It is in.

Another object of the present invention is to provide an injection needle type suturing device capable of separating and discarding a metal hollow needle portion and a resin holding portion.

[0008]

In order to achieve the above object, the present invention provides an injection needle-shaped hollow needle provided with a piercing portion at a distal end, a grip for mounting a proximal end of the hollow needle, An injection needle type including a thread storage portion provided in the grip portion, and a suture stored in the thread storage portion and having a distal end passed through the hollow needle portion and led out at the piercing portion. In the suturing device, the hollow needle portion is curved, and the proximal end of the hollow needle portion is detachably attached to the grip portion in a direction in which the axis of the proximal end and the axis of the grip portion intersect. It is characterized in that it is mounted so that the angle can be changed about the axis of the end.

In such an injection needle type suturing device, the hollow needle portion is curved, so that when suturing an affected part, the hollow needle part is pierced without lifting the affected part to be sutured, and the piercing part is inserted on the opposite side. Can be taken out. The proximal end of the hollow needle portion is attached to the gripping portion so that the angle can be changed about the axis of the proximal end in a direction in which the axis of the proximal end intersects with the axis of the gripping portion. Therefore, the orientation of the wrist when grasping the grasping portion intersects the axis of the proximal end of the curved hollow needle portion, and when suturing the affected part, the piercing portion at the distal end of the hollow needle portion is at the suture position. By rotating the wrist about the axis of the grasping portion so as to hit and push in, the hollow needle portion can be penetrated into the affected part. At this time, the bending of the wrist is small, and the suturing operation can be easily performed with little movement of the elbow and the arm, with only slight movement that is reasonable. Further, by changing the angle of the hollow needle portion about the axis of the base end thereof, the angle of the hollow needle portion with respect to the grip portion is easily sewn depending on the position of the affected part to be sewn, and when the grip portion is gripped. If your hand interferes with vision to the affected area, you can adjust the content.

[0010]

1 and 2 show an embodiment of an injection needle type suturing device according to the present invention.
FIG. 1 is a longitudinal sectional side view of an injection needle type suturing device of this example, and FIG. 2 is an exploded perspective view of the injection needle type suturing device of this example. Parts corresponding to those in FIG. 4 described above are denoted by the same reference numerals.

In the injection needle type suturing device of this embodiment, the hollow needle portion 1 made of metal is previously curved at a required curvature. Hollow needle part 1
Is provided with a piercing portion 1a by cutting the tip of the hollow needle portion 1 obliquely. Base end 1b of the hollow needle 1
Is attached to the gripping portion 2 so that the axis C2 of the base end 1b and the axis C1 of the gripping portion 2 intersect with each other so as to be detachable and changeable in angle around the axis C2 of the base end 1b. ing.

A suture 4 is stored in a thread storage section 3 formed as a cavity in the grip section 2 from an opening at the rear of the grip section 2. The opening at the rear of the gripper 2 is closed by a lid 5. The distal end portion 4a of the suture 4 passes through the hollow needle portion 1 attached to the grip portion 2 and the piercing portion 1 at the distal end.
a.

The structure for attaching the proximal end 1b of the hollow needle portion 1 to the grip portion 2 is as follows. At the lower part on the distal end side of the grip part 2, a mounting cylindrical fitting convex part 6 is formed in a direction crossing the axis C <b> 1 of the grip part 2. The cylindrical fitting convex portion 6 communicates with the thread storage portion 3 formed in the grip portion 2, and the suture 4 stored in the thread storing portion 3 is outside the cylindrical fitting convex portion 6. Is derived. The outer periphery of the cylindrical fitting projection 6 is formed in a conical shape having a small diameter in the distal direction.

Further, a support portion 7 having a fitting hole formed by press-fitting the outer periphery of the cylindrical fitting convex portion 6 to be fitted tightly is provided at the base end portion 1b of the hollow needle portion 1. By press-fitting the cylindrical fitting convex portion 6 of the grip portion 2 into the fitting hole of the supporting portion 7, the support portion 7 is held by the cylindrical fitting convex portion 6. The end 1 b is attached to the grip 2. Then, the supporting portion 7 is attached to the cylindrical fitting convex portion 6.
Can be hollowed by arbitrarily changing the angle around the axis of the support portion 7 or by rotating the support portion 6 fitted to the cylindrical fitting convex portion 2 in the fitted state. Needle part 1
Can be attached to the gripper 2 so that the angle can be changed about the axis C2 of the base end 1b. The support part 7
The bottom of the fitting hole is communicated with the inside of the hollow needle portion 1, and the suture 4 stored in the thread storing portion 3 in the grip portion 2 is moved from the cylindrical fitting convex portion 2 to the support portion 6. Through the hollow needle portion 1 and out of the piercing portion 1a at the tip.

[0015] The hollow needle part 1 attached in this manner.
In the separation of the gripping portion 2 from the cylindrical fitting convex portion 6, the supporting portion 7 fitted to the cylindrical fitting convex portion 6 of the gripping portion 2 is strongly pulled in the separating direction while rotating. The part 7 can be removed, whereby the hollow needle part 1 and the grip part 2 are separated.

In the means for attaching the proximal end 1b of the hollow needle portion 1 to the grip portion 2, the proximal end portion 1b of the hollow needle portion 1 is attached to the grip portion 2 and the axial center of the proximal end portion 1b. The structure is not limited to the above-described structure as long as it can be attached and detached in a direction in which C2 and the axis C1 of the grip portion 2 intersect and can be changed in angle around the axis C2 of the base end 1b.

Although not shown, the injection needle type suturing device constructed as described above is adapted to be protected by fitting a protective cover to the hollow needle portion 1 during storage. If such an injection needle type suturing device is sterilized as a whole in advance and sterilized and packaged with a seal package, it can be used as it is by removing it from the package at the time of use.

FIGS. 3A and 3B show a process of suturing an affected part with the injection needle type suturing device of this embodiment. FIG.
As shown in FIG. 1A, the grip portion 2 is oriented substantially parallel to the wound 8 so that the piercing portion 1a at the tip of the curved hollow needle portion 1 can cross the wound 9 of the diseased portion 8. . In such a state, the piercing portion 1a at the distal end of the hollow needle portion 1 is pressed against the diseased portion 8, and the wrist is rotated around the axis of the grip portion 2, that is, the grip portion 2 is moved as indicated by an arrow. By rotating, the piercing part 1a is pierced into the affected part 8, and FIG.
As shown in (B), the wound 9 is traversed by the curved hollow needle part 1, and the piercing part 1a is exposed to the opposite side.

In this manner, the hollow needle 1 can be pierced and the pierced portion 1a can be brought out on the opposite side without lifting the diseased portion 8 to be sutured. The proximal end portion 1b of the hollow needle portion 1 is disposed on the grip portion 2 in a direction in which the axis C2 of the proximal end portion 1b and the axis C1 of the grip portion 2 intersect.
b is attached so as to be able to change its angle about the axis C2, so that the direction of the wrist when gripping the grip portion 2 intersects with the axis C2 of the proximal end 1b of the curved hollow needle portion 1. By rotating the wrist about the axis C1 of the grasping portion 2 by pushing the piercing portion 1a at the tip of the hollow needle portion 1 against the suture position and pushing it in when suturing the diseased portion 8,
The hollow needle 1 can be penetrated through the affected part 8. At this time, the bending of the wrist is small, and the suturing operation can be easily performed with little movement of the elbow and the arm, with only slight movement that is reasonable. Furthermore, by changing the angle of the hollow needle portion 1 about the axis C2 of the base end portion 1b, the angle of the hollow needle portion 1 with respect to the grip portion 2 is easily sewn to the position of the affected part 8 to be sewn, and If the hand grasping the grasping part 2 hinders the vision of the affected part 8, the content can be adjusted.

When the piercing part 1a comes out on the opposite side of the affected part 8 as described above, the tip 4a of the suture 4 is held with the fingertip of the other hand, and the gripping part 2 is rotated in the opposite direction to rotate the hollow needle. The part 1 is pulled out of the diseased part 7 so that the suture 4 passes through the wound 9 of the diseased part 8 and crosses it. In this state, the wound 9
After tying the suture 4 that has penetrated through it, the suture 4 on the side of the piercing portion 1a is cut with scissors or the like. Such a suturing operation is repeatedly used as needed.

After use, the injection needle type suturing device of this embodiment has a metal hollow needle portion and a resin because the proximal end portion 1b of the hollow needle portion 1 is detachably attached to the grip portion 2. Can be separated and discarded.

[0022]

As described above, according to the injection needle type suturing device of the present invention, the suturing operation of the affected part can be easily performed.
After use, there is an effect that the metal hollow needle portion and the resin holding portion can be separated and discarded.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an example of an embodiment of an injection needle type suturing device according to the present invention.

FIG. 2 is an exploded perspective view of the injection needle type suture instrument of the present example.

FIGS. 3A and 3B are explanatory views showing a process of suturing an affected part with the injection needle type suturing device of the present example.

FIG. 4 is a longitudinal sectional side view of a conventional injection needle type suture instrument.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 hollow needle part 1a piercing part 1b base end part 2 gripping part 3 thread storage part 4 suture 4a distal end part 5 lid 6 cylindrical fitting convex part 7 support part 8 affected part 9 wound

Claims (1)

[Claims] 1. An injection needle-shaped hollow needle portion having a piercing portion at a distal end, a grip portion for attaching a base end of the hollow needle portion, a thread storage portion provided in the grip portion, and the thread storage portion A needle which is housed in a portion and has a suture threaded through the hollow needle portion and leading out at the piercing portion, wherein the hollow needle portion is curved and hollow. The base end portion of the needle portion is attached to the grip portion so as to be detachable in a direction in which the axis of the base portion and the axis of the grip portion intersect, and to be changeable in angle about the axis of the base portion. An injection needle type suture instrument characterized by the following.