JP4200220B2 - Needle holder - Google Patents

Description

  The present invention relates to a needle holder capable of holding and releasing a thread such as a suture thread or a needle-attached thread used in surgery.

  Conventional needle holders used for surgery including laparoscopic surgery generally hold a long needle holder main body and a suture thread or a needle-attached thread on the distal end side of the needle holder main body. It has a gripping part that can be freely opened and closed, and is configured to open and close the gripping part on the proximal end side (the operator's hand side) of the needle holder body, for example, a handle-like operation part.

  Further, for example, a needle holder having the above-described configuration and provided with a thread fixing means including a hook piece for fixing a thread or a thread with a needle on the outer peripheral surface of the needle holder body is provided. It has been proposed (Patent Document 1).

As shown in FIG. 4, for example, two needle holders A and B are prepared, and one needle holder A is used for the other needle holder. A thread such as a suture thread or a thread with a needle is wound around the main body (shaft body) of B. Next, the needle holder A grips one end of the thread (Long Tail) and pulls out the thread, and the needle holder B wrapped around the thread grips the other end (Short Tail) and holds the thread. Instrument ligation is performed by pulling in the direction opposite to the pulling direction by A.
Japanese Utility Model Publication No. 5-88507

  However, when both the conventional general needle holder and the needle holder as described in Patent Document 1 are to be ligated outside the body, the angle formed by the needle holder can be freely changed. Instrument ligation can be performed easily, but when performing instrument ligation in the body, it is a cylindrical instrument with a narrow inner diameter that is used to insert and remove surgical instruments such as forceps and needle holders, especially through the abdominal wall. In the case of laparoscopic surgery or the like in which instrument ligation is performed through a trocar (usually around 10 mm inside diameter), the needle holder has a small swing angle due to the abdominal wall hitting the needle holder. There has been a problem that the operation of winding the yarn around is particularly difficult. For this reason, instrument ligation in the body using a conventional needle holder is an extremely difficult task, and an operator is required to have a highly skilled technique.

  Specifically, in a general needle holder, when the needle tail B of the thread wound around the needle holder B is to be gripped by the needle holder B, the thread wound around the needle holder B is not held. There was a problem that it was easily removed because it was not held by the needle device B.

  In addition, in the needle holder as described in Patent Document 1, the complicated operation of moving the needle holder to hook or remove the thread on the hook piece or the like in the abdominal cavity (internal body) which is a limited space. There was a problem of requiring.

  For the above problems, endoscopic surgery using a laparoscope or a colposcope has to rely on a two-dimensional image by a procedure performed while checking an image from a scope inserted into the abdominal cavity on a monitor. In addition, there was a problem that more advanced and skilled techniques were required for the operation of instrument ligation in the body using a conventional needle holder.

  In view of the above, the present invention solves the conventional problems, can easily hold and release the thread without requiring a complicated operation, and has a small swing angle of the needle holder. In addition, a new needle holder that can perform simple and quick instrument ligation both outside and inside the body is provided.

As means for solving the above-mentioned problems, the present invention firstly has a long needle holder body, a gripping part that can be opened and closed at the tip of the needle holder body, and a proximal end of the needle holder body. And the gripping portion includes a fixed gripping member and a rotary gripping member, and the rotary gripping member is connected to the needle holder body so as to be pivotally supported. In the needle holder in which the opening / closing operation of the gripping part can be performed by the rotation of the rotary gripping member , the rotary gripping member is in the short direction of the needle holder body, and the gripping part is upward in the closed state. It has an open groove-like thread accommodating part, and this thread accommodating part can accommodate a thread when the gripping part is closed, and is reduced or closed by rotation of a rotating gripping member that opens the gripping part. possible and has been that has, yarns contained is not characterized by being held in the thread accommodating section without desorbed .

  Secondly, an operating force transmitting core member for transmitting the operating force by the operating portion to the rotating gripping member is slidably inserted inside the needle holder body. While the distal end side of the core member is connected to the rotation gripping member, the base end side is connected to the operation portion, so that the rotation gripping member can be pivotally supported.

  According to the first invention, the thread can be easily held and released without requiring a complicated operation, and even if the swing angle of the needle holder is small, it can be easily performed regardless of whether it is outside or inside the body. Can perform quick instrument ligation.

  And according to 2nd invention, in addition to the effect of the said 1st invention, a holding part can be opened and closed more smoothly.

  The present invention has the features as described above, and the embodiments thereof will be described in detail below.

  FIG. 1 is an overall side view and an enlarged side view of an essential part illustrating an embodiment of a needle holder of the present invention. FIG. 2 is a side view illustrating an opening / closing operation in the gripping portion of the needle holder of the present invention. FIG. 3 is a plan view illustrating a state in which the thread is held in the gripping portion of the needle holder of the present invention, where (A) shows a closed body of the gripping portion and (B) shows an open state of the gripping portion. .

  First, the needle holder (1) of the present invention will be described with reference to FIGS. The needle holder (1) of the present invention includes a long needle holder body (11), a rotating gripping member (12A) that rotates toward the distal end side of the needle holder body (11), and a needle holder body ( 11) A gripping member having a fixed gripping member (12B) fixed to the gripping portion (12B) is disposed, and is gripped by a gripping portion (12) that can be freely opened and closed and a proximal end side of the needle holder body (11). For example, a thread (Y) such as a suture thread or a needle-attached thread that is used in an operation and that has a handle-like operation section (13) that can open and close the section (12) can be easily held and released. It is a needle holder (1) that can.

  At this time, the opening / closing mechanism of the grip portion (12) in the needle holder (1) of the present invention is arranged such that the grip member is disposed on the needle holder body (11) via the shaft (4). One of the two is made pivotable at the base end portion of the gripping member, so that the gripping portion (12) can be opened and closed.

  In the needle holder (1) having the above-described configuration, the proximal end portion of the rotation gripping member (12A) that constitutes the gripping portion (12) has a thread storage portion that stores the yarn (Y). A notch as (2) is provided. And in the closed state of the holding part (12), since the thread | yarn accommodating part (2) is opened, the thread | yarn accommodating part (2) can accommodate a thread | yarn (Y). On the other hand, in the open state of the gripping part (12), the opening of the thread storage part (2) is reduced and accommodated with the rotation (opening movement) indicated by the arrow of the rotation gripping member (12A). The yarn (Y) thus formed is held in the yarn holding space (X) without being detached. The thread holding space (X) may be formed, for example, by forming an opening portion of the thread accommodating portion (2) with a proximal wall portion that forms a connection portion with the needle holder body (11).

  In addition, this holding | grip part (12) may be formed integrally with the needle holder main body (11), and may be formed separately. Moreover, this operation part (13) may be comprised from the movable operation part (13A) and the fixed operation part (13B) like the example of FIG. 1, and a movable operation part (13A) is clamped, By simply loosening, the operating force is transmitted to the rotating gripping member (12A), and the gripping portion (12) can be freely opened and closed smoothly.

  Here, as a configuration for transmitting the operating force of the operating portion (13) in the needle holder (1) of the present invention to the rotating gripping member (12A) (that is, an opening / closing mechanism of the gripping portion), for example, an operating portion ( The operating force transmission core member (4) for transmitting the operating force according to 13) to the rotating gripping member (12A) is slidably inserted into the needle holder body (11), and this operating force transmission is performed. The distal end side of the core member (4) is connected to the rotating gripping member (12A), and the proximal end side (operator's hand side) is connected to the operation unit (13), that is, the movable operation unit (13A). Thus, the operating force of the operating portion (13) can be efficiently transmitted to the rotating gripping member (12A), and the gripping portion can be opened and closed more smoothly. The operating force transmission core member (4) may be, for example, a wire or a rod.

  Based on such characteristics, the state of accommodation (holding) of the thread (Y) by the needle holder (1) of the present invention will be described with reference to FIG. First, as illustrated in FIG. 3A, the gripping part (12) is closed, the thread accommodating part (2) is opened upward, and the thread (Y) is accommodated therein. Since the operation for storing the yarn (Y) is simply performed so as to place the yarn (Y) on the opened yarn storage portion (2), the yarn (Y) can be stored easily. Of course, it is also possible to perform simply when removing the yarn (Y).

  Next, as illustrated in FIG. 3B, the rotating gripping member (12A) is opened, and the gripping portion (12) is opened, whereby the yarn is placed in the first thread accommodating portion (2). Maintaining a state in which a part of (Y) is stored, the opening of the first thread storage portion (2) is reduced (for example, a base-end-side wall portion that forms a connection point with the needle holder body (11)) (5), the yarn (Y) can be reliably stored (held) in the yarn holding space (X). In contrast to this operation, when the gripping part (12) is closed, the thread accommodating part (2) returns to the open state, and the thread (Y) can be removed easily.

  By using the needle holder (1) of the present invention having such characteristics, the conventional instrument ligation method illustrated in FIG. 4, for example, two needle holders A and B (the two needle holders A and B) At least one needle holder (1) according to the present invention is prepared, and one needle holder A is sutured to the needle holder body (shaft body) of the other needle holder B. Wrap thread such as thread or thread with needle. Next, the needle holder A holds one end of the thread (Long Tail) or the suture needle and pulls out the thread, and the needle holder B around which the thread is wound holds the other end (Short Tail) of the thread. Even when instrument ligation is performed by pulling the thread in the direction opposite to the pulling direction by the needle holder A, the thread can be easily held and released without requiring a complicated operation. Even if the swing angle is small, simple and quick instrument ligation can be performed regardless of whether inside or outside the body. In particular, a laparoscope that is ligated through a trocar (usually around 10 mm in inner diameter), which is a cylindrical instrument with a small inner diameter for inserting and removing surgical instruments such as forceps and needle holders through the abdominal wall. Even in the case of subsurgery or the like, instrument ligation can be performed easily and quickly by the needle holder of the present invention.

  Of course, the present invention is not limited to the above examples, and it goes without saying that various aspects are possible in detail. For example, the cross-sectional shape of the needle holder body is not particularly limited to a circular shape, an oval shape, a polygonal shape, or the like, and in the case of a circular shape, the outer diameter is preferably set such that it can be inserted into a trocar. . In consideration of insertion into the trocar, the needle holder body is preferably linear, but may have other shapes. For example, it may be curved or bent into an arbitrary shape in advance. In addition, the material of the needle holder main body and the core member for transmitting the operating force is not particularly limited. For example, metals such as carbon steel and titanium alloy, polymer materials such as polyamide and polyester (these For example, rod-shaped or wire-shaped).

  Further, the rotary gripping member and the fixed gripping member are appropriately embossed or made of a rubber material, etc. in consideration of gripping the thread and the needle (suture needle) attached to the thread more securely. An anti-slip member may be provided.

It is the whole side view and one part expanded side view which illustrated one Embodiment of the needle holder of this invention. It is the side view which illustrated the mode of opening and closing operation in the holding part of the needle holder of the present invention. It is the top view which illustrated a mode that a thread is held in a grasping part of a needle holder of the present invention, (A) shows a closed state of a grasping part, and (B) shows an opened state of a grasping part. It is the schematic diagram which illustrated the outline of the procedure of the instrument ligation using a needle holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Needle holder 11 Needle holder main body 12 Holding part 12A Rotating holding member 12B Fixed holding member 13 Operation part 13A Movable operation part 13B Fixed operation part 2 Yarn accommodating part 3 Axis 4 Operation force transmission core member 5 Wall part X Yarn Holding space Y thread

Claims (2)

It has a long needle holder body, a gripper that can be opened and closed at the distal end of the needle holder body, and an operation part at the base end of the needle holder body. The rotating gripping member is connected to the needle holder body so as to be pivotally supported, and the operation unit can be opened and closed by rotating the rotating gripping member. In the needle holder, the rotating gripping member has a groove-like thread accommodating portion that opens upward in the short direction of the needle holder main body when the gripping portion is closed, and the thread accommodating portion is with the yarn can be accommodated in but closed state, that is capable reduced or closed by rotation of the rotating gripping member for the grip portion and the open state, the yarn accommodating portion yarn is accommodated without desorbed The needle holder is characterized by being held by the needle.   An operating force transmitting core member for transmitting the operating force from the operating portion to the rotating gripping member is slidably inserted inside the needle holder body, and the distal end side of the operating force transmitting core member is connected to the needle holder body. The needle holder according to claim 1, wherein the rotary gripping member is pivotally supported by being connected to the rotary gripping member and by connecting the base end side to the operation portion.

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