JP5524190B2 - Remote control mechanism for intact suture needle - Google Patents

Description

  The present invention is for a device used for deep or laparoscopic suturing where there is a distance between the hand moving the needle and the suture site. The present invention holds needles of various sizes with needle slots corresponding to needles of various sizes, passes the tissue (meat) through the needles, captures the needles, and holds all these operations for the device Developed to do by the same movement of the finger of the hand.

  There is no such mechanism that can be used with an intact suture needle that is commercially available and currently in use.

  An object of the present invention is to solve the following technical problems. That is, the control system of the present invention secures an intact needle (with a suture mounted thereon) firmly in its slot and provides the same slot with high accuracy (to prevent thin needles from wobbling in the slot). To fit needles of various sizes, pass the tissue (meat) through the needle, capture the needle, and remove the needle by a single hand movement of the surgeon (for example, a push with the surgeon's thumb) used. As a result, the working time becomes faster and the needle becomes easier to handle. In the present situation, since the needle is not fixed in the slot, the needle may wobble, particularly when the needle is thin, and it may be difficult to aim at the target, or the needle may fall accidentally. In addition, in the present situation, since the mechanism for moving the needle and the mechanism for fixing the needle are controlled separately, the concentration of the surgeon is diminished under difficult surgical conditions. In the present invention, the occurrence of the above problem is prevented by simultaneously performing these same operations.

Cross section Internal cross section Side view of needle slot Needle in an unsecured slot Needle in the slot and protruding needle stopper Spring perspective view Needle catch handle Open needle catch grip Needle catch grip holding the needle Detail of the needle catch handle (lock window) Connection between the needle catch handle and the needle stop handle Conical structure of needle groove (side view) Conical structure of needle groove (front and back) Needle clamp inclined surface Relationship between needle clamp and needle Joint between needle clamp and control part (top view) Connection between needle clamp and control part (perspective view) Advanced component connection (top view)

  The present invention includes a main body (1), a main body fixing handle (2), a needle slot push-out handle (3), a needle slot push-out handle pivot point (4), a needle slot control rod (5), a needle slot (6), a needle Slot control rod hole (7), needle slot pivot point (8), needle capture grip control handle (9), needle capture grip control handle pivot point (10), needle capture grip control rod (11), needle capture Grip (12), needle capture grip control handle lock mechanism (13), clamp side support (14), needle groove (15), needle groove back surface (16), needle groove front (17), needle groove side wall (18 ), Conical needle groove bottom (19), needle clamp (20), needle clamp slot (21), spring hole (22), spring (23), spring pivot shaft (24), side surface of main body extension (25) , Spring window (26), curved surface with needle stop ( 7), Needle groove opening wire (28), Needle stopper control part (29), Needle stopper connecting rod (30), Needle stopper connecting hole (31), Needle groove opening device handle (32), Needle groove opening device handle pivot A moving point (33), a needle groove release button (34), a needle groove opening device handle spring (35), and a lock mechanism hole (36) are provided.

  The main body (1) connects the control unit and the needle in a remote control mechanism for an intact needle. The body can be formed in a circle and passed through a laparoscopic trocar. The length of the main body can be increased as necessary so that the stitching control distance is increased.

  The user operates the tool with the main body fixing handle (2). Other systems are mounted on these two main components (body and body fixation handle) according to their function. The needle slot pusher handle (3) can be moved back and forth at the pivot point (4) of the needle slot pusher handle.

  This movement is transmitted to the control rod of the needle slot mounted on the opposite side, which transfers the movement to the needle slot (6). The contact point between the needle slot control rod and the needle slot is the needle slot control rod hole (7).

  The needle slot moves circularly around the needle slot pivot point by the back-and-forth movement of the control rod (when the needle slot push-out handle is pulled toward the main body fixed handle, the needle slot moves forward).

  The needle capture grip control handle (9) is connected to the main body fixed handle at a pivot point (10), and performs a back-and-forth motion around the pivot point.

  These movements are transmitted to a needle capture grip control handle (9), a needle capture grip control rod (11) and a needle capture grip (12) control mechanism located between the pivot point and the opposite side of the handle.

  Therefore, when the needle capture grip control handle (9) moves toward the fixed handle (2), the needle capture grip control rod (11) is pulled, and the needle capture grip (12) approaches each other to capture the needle. The needle capture grip is positioned in such a way as to receive the needle therebetween after the needle has exited the tissue.

  When the rod is pulled (the handle is pushed), the grips approach each other with the help of the clamp side support, and the needle is tightened. The needle capture grip control rod is controlled by a needle slot push-out handle (3).

When this rod approaches the body with the help of a finger (so that the needle is pinched between the grips), the needle capture grip control rod is pushed for the last 1 cm of movement. Both of them approach the main body fixing handle.

  When approaching the body fixing handle, the locking mechanism at the end of the needle capture control rod begins to function, fixing the needle between the grips. The lock mechanism cannot be released unless it is pressed twice.

  When the needle catching grip is pulled toward the handle, the grips approach each other with the assistance of the clamp side support (14) and tighten the needle.

  The grip has a spring mechanism from the middle part to the outside. When the grip is pushed forward, the grip separates and develops into a position to catch the needle therebetween.

  The needle is in the needle slot (6) and the needle is in the needle groove (15). The front (17) of the needle groove (the back of the body) is also designed to match the needle pitch. The front surface (17) is mainly composed of a needle stop (20). The width between the side walls (18) of the needle groove is slightly wider than the needle so that the needle can move freely when the needle is inserted into and removed from the needle groove. The standing point behind the needle from the front to the back or from the side to the bottom is conical (19) and is adapted to fit needles of various sizes.

The needle clamp is under the control of a spring (23) utilizing a spring hole (22). The spring pivot shaft (24) is close to the conical needle groove bottom and the needle body. The place where the spring obtains its force is the side surface (25) of the main body extension. At this side, the spring is pushed, pushing the needle stop (20) towards the needle. This movement of the needle stop occurs at the needle stop slot (21) located within the needle slot. Spring movement in line with the needle groove occurs in the spring window (26). The top and bottom surfaces of the needle stop in contact with the needle are inclined inward to grip the needle (27). The hardness of the spring is adjusted so that the needle does not move from side to side. In the normal position, the spring is arranged to push the needle against the back of the needle groove (16). The needle stop movement, which retracts the needle stop from the needle to release the needle and releases the needle groove, is effected by the needle groove opening wire (28). There is a part (29) for holding the needle clamp from both sides at the end of the wire. The two parts (29) and the needle clamp are connected by a needle clamp connecting rod (30). Using this rod, these parts and needle clamps of both parts are connected. However, the needle stop connecting hole (31) has flexibility to enable full circle movement by needle stop. The parts leading to the rod on both sides of the needle clamp are firmly connected to the needle groove opening wire (28). The wire reaches the handle through the body and is attached near the middle of the needle groove opening device handle (32). This handle moves back and forth about the needle groove opening device handle pivot point (33).
A release button (34) part extending downward from the lower end of the needle groove opening device handle (32) is provided, and the release button (34) part is pushed toward the main body fixing handle (2), thereby The stop (20) is retracted and the needle (37) is released from the needle groove (15) and placed.
Using the spring (35) to move the needle groove opening device handle away from the body fixed handle helps to return the handle to the correct position at the start of use. The needle groove opening device handle is disposed between the main body fixing handle (2) and the needle catching grip control handle (9).
The needle groove opening device handle (32) is provided with a hole (36) through which the locking mechanism (13) can be freely inserted. The needle groove opening device handle (32) is independent of the locking mechanism (13). It can be operated. The lock mechanism (13) protrudes from the needle capturing grip control handle (9) toward the main body fixing handle (2), and when the needle capturing grip control handle (9) is moved backward toward the main body fixing handle (2). The corrugated engagement portion can be engaged with the locking portion of the main body fixing handle (2) to lock the position of the needle capture grip control handle (9).
This mechanism is adjusted in this manner to allow tissue (meat) to pass through the needle by skillful manipulation of the grip, capture the needle, and release the needle with a single suturing action. When the needle groove release button (34) located at the end of the needle groove opening device handle is pressed once toward the main body fixing handle, the needle groove is opened, and the needle groove can be used for use of the needle.

  This device, which is an attached needle control mechanism, is operated using a handle (2) fixed to the body (1). In the starting position, the lock mechanism (13) of the needle catch grip control handle is not used and the grip is pushed forward by the needle groove opening device handle (32) by the action of the spring (35) of the needle groove opening device handle. In this case, the needle catch grip (12) opens and is ready to receive a needle during that time. In this case, the needle clamp (20) is already ready. In order to place the needle in its predetermined position, the needle slot push-out handle (3) is squeezed to half of the movable range. In this position, the control of the needle groove from the handle becomes more effective. In order to place the needle in the needle groove, the needle groove release button (34) is pushed toward the main body fixing handle. This movement reaches the needle stopper (20) through the needle groove opening wire (28), the needle stopper control part (29) and the needle stopper connecting rod. The needle stop is pulled toward the main body to create a groove for receiving the needle. The needle is pushed out from the suture side toward the needle groove. When the needle is in place, release the button. A strong spring (23) pushes the needle stop toward the needle and tightens the needle. The device is ready. Depending on the surgery intended to use the device, the device is brought close to the suture area via a pipe or directly. The surgeon directs the needle to the tissue by pulling the needle slot pusher handle (3) towards the body fixation handle. When the slot push-out handle (3) approaches the main body fixing handle, the needle groove opening device handle (32) is pulled together. At the same time, the grip approaches the needle already between the needle groove and the needle clamp, and the needle clamp releases the needle. In the final position, the locking mechanism begins to function and the needle is secured between the grips. In this way, the needle passes through the tissue and is simultaneously captured by the grip. When the needle slot push-out handle is released from the body fixing handle, the needle is released from the groove. Due to the locking mechanism, the needle is abandoned and left intact. When the needle slot pusher handle is fully removed from the body locking handle, the needle is released from the needle groove (15) and tissue, ready for the second suture. At this stage, the needle is fixed to the grip at the end, the handle locking mechanism is ON, and the needle groove is open. When the needle slot push-out handle (3) is pulled again, the portion of the needle with the suture thread enters the needle groove again. At the last stage, the needle is completely stored in the needle groove. Since the lock mechanism is configured to stop functioning when it hits the end point, the needle catch grip is released and opened. At the same time, the needle stopper is also released from the lock and moved back and forth to tighten the needle. The device is ready for a new suture.

1: Main body 2: Main body fixing handle 3: Needle slot push handle 4: Needle slot push handle pivot point 5: Needle slot control rod 6: Needle slot 7: Needle slot control rod hole 8: Needle slot pivot point 9: Needle catch grip control handle (jaw)
10: Needle capture grip control handle pivot point (jaw)
11: Needle catch grip control rod 12: Needle catch grip 13: Needle catch grip control handle lock mechanism 14: Clamp side support portion 15: Needle groove 16: Needle groove back surface 17: Needle groove front surface 18: Needle groove side wall 19: Cone Needle groove bottom 20: needle stopper 21: needle stopper slot 22: spring hole 23: spring 24: spring pivot shaft 25: main body expansion portion side surface 26: spring window (opening)
27: Needle stop curved surface 28: Needle groove release wire 29: Needle stop control part 30: Needle stop connection rod 31: Needle stop connection hole 32: Needle groove release device handle 33: Needle groove release device handle pivot point 34: Needle Groove release button 35: Needle groove opening device handle spring 36: Lock mechanism hole 37: Needle

Claims (13)

A remote control mechanism for an intact suture needle and having minimal parts for performing a remote stitching operation,
The body (1),
The body fixing handle (2),
A needle slot push-out handle (3), a needle slot push-out handle pivot point (4) that serves as a pivot for moving the needle slot push- out handle (3) back and forth, and one end attached to the needle slot push- out handle (3) The needle slot control rod (5) is connected to the other end of the needle slot control rod (5) by using the hole (7) of the needle slot control rod as a contact point. A needle slot (6) that oscillates and a needle slot pivot point (8) that serves as a fulcrum for the oscillating motion ;
A needle catching grip control handle (9), a needle catching grip control handle pivot point (10) as a pivot for pivoting the needle catching grip control handle (9) back and forth, and the needle catching grip control handle (9) A needle capture grip control rod (11) attached to one end of the needle capture grip control rod (11), and a needle capture grip (12) connected to the other end of the needle capture grip control rod (11) to move back and forth .
It protrudes from the needle catching grip control handle (9) toward the main body fixing handle (2) and is fixed when the needle catching grip control handle (9) is moved backward toward the main body fixing handle (2). A needle capture grip control handle lock mechanism (13) that engages with a locking portion of the handle (2) to lock the position of the needle capture grip control handle (9) ;
A clamp side support (14) for assisting the needle capture grip (12) and tightening the needle ;
Needle groove (15), needle groove back surface (16), needle groove front surface (17), needle groove side wall (18), conical needle groove bottom (19), needle stopper (20), needle stopper Slot (21), spring hole (22), spring (23), spring pivot shaft (24), main body extension portion side surface (25), spring window (26), and needle stop curved surface (27 ) , A needle groove opening device handle (32), a needle groove opening device handle pivot point (33) serving as a pivot for moving the needle groove opening device handle (32) back and forth, and the needle groove opening device handle The needle groove opening wire (28), one end of which is attached to (32) and transmitting the back-and-forth movement to the needle stopper (20), the needle groove release button (34), and the needle groove opening device handle spring (35) And a hole (36) of the locking mechanism ,
The needle slot push-out handle (3) having each drive point (8) (10) (33) on the main body fixing handle (2), in front of the main body fixing handle (2), the needle capturing grip control A remote control mechanism for an intact suture needle , comprising a handle (9) and a needle groove opening device handle (32) .   The remote control mechanism for an intact suture needle according to claim 1, wherein when pulled, the needle capture grips (12) approach each other in a fixed manner.   The remote control mechanism for an intact suture needle according to claim 1, wherein the remote control mechanism for an intact suture needle is applicable to any size needle by utilizing the shape of the conical bottom portion (19) of the needle groove that does not cause the needle to fall.   The needle stopper (20) protrudes from the bottom of the needle groove to fix the needle that has already been inserted into the needle groove (15), and the needle stopper (20) has its own needle groove (21 engraved slightly larger than the needle). ), Everything is in the needle slot, the needle stop has the ability to move toward or away from the needle, and is firmly controlled by the control of the spring (23) located in the spring hole (22) The remote control mechanism for an intact suture needle according to claim 1, wherein   Since the needle facing side of the needle clamp is straight and is pushed in two directions against the ends, the pressure is evenly distributed at these ends, and these two ends (27) facing the needle are The remote control mechanism for an intact suture needle according to claim 1, wherein the remote control mechanism is curved in accordance with an inclined shape of the needle.   The step of opening the needle groove by pulling the needle stopper to accommodate the needle is controlled by the needle groove opening device handle (32), and the needle stopper is moved by applying pressure to the handle toward the body fixing handle (2). The remote control mechanism for an intact suture needle according to claim 1, wherein the remote control mechanism is retracted from the needle.   A needle groove release device handle (32) is connected to the body and rotates about a needle groove release device handle pivot point (33), with a wire attachment point between the pivot point and the other end of the handle. When the handle (32) is pushed to the main body side using the main body fixing handle (2), the needle groove opening wire (28) and the needle stopper control component (29) attached to the opposite side of the wire are also in the same direction. Since being pulled, the needle groove opening wire (28) also activates the needle stop connecting rod (30) towards the handle, the needle stop connecting rod being located in the needle stop connecting hole (31). Item 7. The remote control mechanism for an intact suture needle according to any one of Items 1 to 6.   8. Intact suture according to claim 7, wherein the needle stop rotates at a connection point with a needle stop control part (29) acting on a needle stop connection rod (30) located in the needle stop connection hole (31). Remote control mechanism for needles. A release button (34) part extending downward from the lower end of the needle groove opening device handle (32) is provided, and the release button (34) part is pushed toward the main body fixing handle (2), thereby holding the needle (20) The remote control mechanism for an intact suture needle according to claim 1 or 6, wherein the needle (37) is released from the needle groove (15) by retreating .   While the needle is compressed by installing a strong spring (23) and the spring is pushing the needle stop, the spring will force its force from the appropriate point located in the body extension side (25) or needle slot. The remote control mechanism for an intact suture needle according to claim 1 or 4 to be collected.   The remote control mechanism for an intact suture needle according to claim 1, wherein the double-sided spring window (26) is located in the needle slot, so that the needle clamp can be moved back and forth under the pressure of the needle groove opening wire and the spring. .   Since the needle groove opening device handle (32) is located between the main body fixing handle and the needle catch grip control handle (9), the lock mechanism can be operated independently using the hole of the lock mechanism. 10. A remote control for an intact suture needle according to claim 1 or 9, wherein at the same time, as the needle groove opening device handle moves independently toward the body locking handle, the needle groove is opened for needle reception. mechanism. A needle catch grip handle (9) and a needle groove opening device handle (32) are respectively disposed between the needle slot push-out handle (3) and the body fixing handle (2), and the needle slot push-out handle (3) is operated. The needle capture grip (12) interlocked with the needle capture grip handle (9) captures the distal end side of the needle (37) immediately after the needle passes through the tissue . The remote control mechanism for an intact suture needle according to claim 12, wherein the needle (37) is released from the needle groove (15) by the retraction of the needle stopper (20) interlocking with the needle groove opening handle (32).

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