JPH0133050Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a needle grasper for grasping a semicircular suture needle as a surgical tool, and in particular, the needle tip of the suture needle in the grasped state is capable of penetrating the suture needle. The present invention relates to an improvement in a needle grasper having a structure positioned approximately at right angles to human tissue.

[Conventional technology]

Figures 5a to 5c show the structure of a conventional needle grasper.
FIG. 5a is a diagram showing the planar structure of the needle holder 1, and 2
Reference numerals 1 and 22 designate gripping portions into which fingers are inserted and opening/closing operations are performed to hold the suture needle between the gripping needle portions 3, and 4 is a scissor holding fulcrum portion. Reference numerals 51 and 52 are gripping bodies that form the long axis direction of the needle gripper 1. FIG. 5b is a front view of the needle gripper 1, and FIG. It is a figure which shows the principal part plane which shows a positional state.

As shown in FIGS. 5a to 5c, the basic structure of the conventional pincer is a horizontal shaft that is straight and flat in the longitudinal direction.

[Problem that the invention attempts to solve]

FIGS. 2a and 2b show how human tissue is sutured using a conventional needle grasper. As shown in FIG. 2a, insert the thumb and middle finger into the gripping parts 21 and 22, and place the suture needle 6 into the gripping part of the needle gripping device 1 with the index finger along the opening and closing parts of the gripping parts 21 and 22. When inserting the suture needle 6 into human tissue, in order to create the best condition, that is, a condition in which the needle tip 7 of the suture needle 6 is positioned at right angles to the human tissue, , as shown in FIG. 2b, the hand holding the needle 1 must be twisted by about 45 degrees. Therefore, when using a conventional needle grasper, it is especially useful for suturing operations when fine surgical operations are required, especially in the field of deep surgery such as brain surgery, cardiac surgery, thoracic surgery, and pelvic lumbar surgery. The difficulty of suturing techniques has become a problem due to the high degree of skill involved in the twisting motion of the fingers holding the needle and the resulting fatigue.

[Means for solving problems]

In order to solve the conventional problems, the present invention twists the handle of the needle and the needle surface of the tip that holds the suture needle with respect to the horizontal axis in the longitudinal direction of the needle. It is characterized by its structure.

[Effect]

In the present invention, since the needle grasper itself is twisted, the needle tip of the suture needle is already positioned at a nearly right angle to the human tissue to be sutured when the needle grasper is grasped normally and naturally. Therefore, when starting the suturing operation, there is no need to perform a twisting motion with the fingers holding the gripping portion, and the suturing insertion operation can be immediately started, thereby ensuring the ease and rationality of the suturing technique.
This will be explained below with reference to the drawings.

〔Example〕

Figures 1a to 1c show the structure of the needle grasper of the present invention. The same reference numerals as in FIGS. 5a to 5c indicate the same parts. FIG. 1a is a diagram showing the planar structure of the needle holder 1 of the present invention, FIG. 1b is a front view of the needle holder 1, and FIG. 1c is an A-A of the needle holder 1 in FIG. 1a. position and B
FIG. 7 is a plan view of the main parts showing the positional states of the gripping bodies 51, 52 and the scissors holding fulcrum part 4 at the -B position.

As shown in FIGS. 1a to 1c, the needle gripper 1 of the present invention has a gripper 5 with respect to the horizontal axis in the longitudinal direction.
By twisting the gripping surfaces of the gripping portions 1, 52, and 3, the angle between the gripping portions 21, 22 and the gripping surface 3 is twisted by approximately 45 degrees.

FIG. 2c shows a state in which the needle grasper 1 having the structure of the present invention is used. As is clear from FIG. 2c, in the normal suturing procedure starting state where the thumb and middle finger are inserted into the gripping parts 21 and 22 and the index fingers are placed on the axes of the gripping bodies 51 and 52, the suture held by the gripping needle part 3 is The needle tip 7 of the needle 6 is positioned substantially perpendicular to the human tissue to be sutured, and the suturing operation can be started immediately without the need for the conventional twisting motion of the fingers.

FIG. 3c shows a state in which human tissue is sutured using the needle grasper 1 according to the present invention in comparison with a case where a conventional needle grasper 1 is used. As shown in FIGS. 3a and 3b, when using the conventional needle grasper 1, the suture needle 6 is first clamped and fixed as shown in FIG. 3a, and then the fingers are twisted as shown in FIG. 3b. The needle tip 7 of the suture needle 6 must be set at a position approximately perpendicular to the human tissue to be sutured.
When using the suture needle 6, as shown in FIG.
Since it is set at a right angle to the human tissue, suturing operation can be started immediately.

A deep grasper with an elongated grip and a curved downward surface, used when delicate surgical operations are required, especially in the field of deep surgery such as brain surgery, heart surgery, thoracic surgery, and pelvic lumbar surgery. When the structure of the present invention is applied to a container,
The effect is remarkable. Figures 4a, b and c show the state when using the deep needle device 1', and Figures 3a, b and c show the state when using the normal needle device 1. Accordingly, a conventional example and the present invention will be compared and shown. The same reference numerals as in FIGS. 3a, b, and c indicate the same parts.

[Effect of idea]

As mentioned above, according to the needle grasper of the present invention,
Since the needle itself has a twisted structure, when the needle is grasped naturally, the needle tip of the suture needle is already positioned at a substantially right angle to the human tissue to be sutured. Therefore, it is possible to immediately and accurately move on to the suturing insertion action without the need for a twisting motion applied to the fingers first, and the ease and rationality of the suturing technique in the surgical procedure can be ensured, which is highly effective. .

[Brief explanation of the drawing]

Figures 1 a to c are plan views, front views, and plan views of essential parts showing the structure of the needle grasper of the present invention; Figures 2 a to c;
Figures 3 a to c and Figures 4 a to c are diagrams for comparatively explaining the state of use of a conventional needle holder and a needle holder of the present invention, and Figures 5 a to c are diagrams of a conventional needle holder. FIG. 1, 1'...Needle device, 21, 22...Gripping part, 3...
Gripping needle part, 4... scissors holding fulcrum part, 51, 52... gripping body,
6... Suture needle, 7... Needle tip.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A needle grasper for grasping a semicircular suture needle for suturing human tissue as a surgical tool, wherein the grasping parts 21 and 22 of the needle grasper 1 are Needle tool 1
A grasping device having a structure in which a shaft handle and a grasping surface of a distal end portion that holds a suture needle 6 are twisted with respect to a horizontal axis in the longitudinal direction of the needle grasping device 1. (2) The gripping portions 21 and 22 of the needle grasper 1 are set approximately in the longitudinal direction of the needle grasper 1 with respect to the horizontal axis.
The needle device according to claim 1, which has a structure twisted at 45 degrees.