KR20110113836A

KR20110113836A - Forceps-form anastomosis apparatus

Info

Publication number: KR20110113836A
Application number: KR1020100033134A
Authority: KR
Inventors: 김철웅; 장광석
Original assignee: (주)트리플씨메디칼
Priority date: 2010-04-12
Filing date: 2010-04-12
Publication date: 2011-10-19
Also published as: KR101101116B1

Abstract

According to an embodiment of the present invention, the anastomosis device includes: a body having an open proximal portion and a distal portion, and a hollow connecting the proximal portion and the distal portion; A rotation rod inserted into the hollow portion and having a distal end drawn out through the distal portion; First and second clamps each having a first and second anastomosis ring fixed thereto, the first and second clamps being rotatably installed at the distal end of the rotation rod to be switched to a standby position and an anastomosis position by rotation; A driving rod inserted into the hollow part and having a distal end drawn out through the distal part; Installed at the distal end of the drive rod so as to be adjacent to the distal portion of the body and moving with the drive rod, supporting the first and second clamps and moving in a direction spaced apart from the distal portion; A head having a guide surface for switching a clamp to the anastomotic position; First and second handles respectively rotatably mounted to the proximal portion of the body; And first and second links connecting the proximal end of the driving rod and the first and second handles, respectively, and moving the driving rod by rotating according to an angle formed by the first and second handles.

Description

Forceps-type anastomosis device {FORCEPS-FORM ANASTOMOSIS APPARATUS}

The present invention relates to a forceps-type anastomosis device, and more particularly, to a forceps-type anastomosis device capable of fastening the anastomosis ring by the angle formed by the handle.

Coronary organs such as blood vessels or intestines can be connected to each other through the closure of the ends, but this method takes a lot of time and effort, and the acquisition of sophisticated closure techniques requires a long training period.

One of the proposed methods to overcome this disadvantage is anastomosis method using anastomosis ring. For example, the anastomosis ring may be anastomated by fixing the anastomosis ring to the vessel to be anastomated and fixing the anastomosis ring and the anastomosis ring.

At this time, the two anastomosis rings are in a male-female relationship, and the anastomosis rings must be fastened precisely and securely to ensure smooth and safe flow of blood and ensure success of the surgery.

An object of the present invention is to provide an anastomosis device that can fasten the anastomosis ring accurately and tightly.

Another object of the present invention to provide an anastomosis device that can securely fasten the anastomosis ring.

Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Distal ends of the first and second links are connected to the distal ends of the drive rod, proximal ends of the first and second links are respectively connected to the first and second handles, and the first and second The angle formed by the two links may increase or decrease according to the angle formed by the first and second handles.

The anastomosis device further includes a connector connected to the proximal end of the drive rod, and the first and second links may be connected to the drive rod through the connector.

The anastomosis device further includes a rotation lever connected to the proximal end of the rotation rod to rotate together with the rotation rod, and the first and second clamps may move together when the rotation rod is rotated.

The guide surface has a switching surface on which the first and second clamps are switched from the standby position to the anastomotic position, and a moving surface on which the first and second clamps are switched to the anastomosis position, and the head is the movement surface. The first and second support bars may be disposed to be spaced apart from each other to support the outside of the first and second clamps, respectively.

The drive rod has a plurality of position grooves formed along the longitudinal direction of the drive rod, the anastomosis device is rotatably connected to the head and is inserted into any one of the position grooves when the drive rod is moved to the drive rod. It may further include a holder for fixing the position of.

According to one embodiment of the present invention, the anastomosis ring can be fastened accurately and firmly to realize a smooth flow of blood. In addition, by fastening the anastomosis ring can minimize the damage of the patient due to the procedure error.

1 is a perspective view showing an anastomosis device according to an embodiment of the present invention.
2A and 2B are perspective views showing the clamp and the head shown in FIG.
3A to 3C are side views illustrating the switching of the clamp according to the operation of the head.
4 is a cross-sectional view showing a rotating rod and a driving rod installed in the body and the body shown in FIG.
5A and 5B are views illustrating the operation of the driving rod according to the rotation of the handle.
6A and 6B are side views illustrating the operation of the first and second clamps moving along the moving surface.
7 and 8 are cross-sectional views showing the operation of the holder according to the operation of the drive rod shown in Figs. 5A and 5B.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 1 to 8. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.

Also, below, "proximal" and "distal" are used based on the clinician's grip of the tool. For example, the head 20 is located distal with respect to the first and second handles 42 and 44.

1 is a perspective view showing an anastomosis device according to an embodiment of the present invention, Figures 2a and 2b is a perspective view showing a clamp and a head shown in FIG. As shown in FIGS. 1 and 2A, the anastomosis device includes first and second clamps 12 and 14, a rotation shaft 16, and a rotation rod 18. The rotating shaft 16 is connected to the distal end of the rotating rod 18, and the rotating shaft 16 rotates together with the rotating rod 18 when the rotating rod 18 rotates.

As shown in FIGS. 2A and 2B, the first and second clamps 12 and 14 are connected to the rotation shaft 16 and may be rotated about the rotation shaft 16. The first and second clamps 12 and 14 maintain a predetermined angle by means of separate torsion springs (not shown) ('standby position'), as described below, and the first and second clamps. 12 and 14 approach each other by the movement of the head 20. First and second anastomosis rings (not shown) are inserted and installed on the first and second clamps 12 and 14, respectively, and end portions of the tubular organs to be anastomated are fixed to the first and second anastomosis rings, respectively. . The first and second anastomosis rings are fastened as the first and second clamps 12 and 14 approach each other, and the ends of the tubular organs are anastomated by the fastening of the first and second anastomosis rings. Since the content of the fastening of the anastomosis ring is well known, a detailed description thereof will be omitted.

Meanwhile, as will be described later, the rotation shaft 16 rotates together with the rotation rod 18 when the rotation rod 18 rotates, and at this time, the first and second clamps 12 and 14 connected to the rotation shaft 16. ) Also rotates with the rotating shaft (16). For example, when the first and second anastomosis rings are fixed to the first and second clamps 12 and 14, as shown in FIG. 2A, the rotation rod 18 is rotated so that the second clamp 14 is rotated. After switching to a substantially horizontal state, the second anastomosis ring can be easily fixed to the second clamp 14. In addition, as shown in FIG. 2B, after the rotating rod 18 is rotated in reverse to switch the first clamp 12 to a substantially horizontal state, the first anastomosis ring can be easily fixed to the first clamp 12. Can be. That is, the first and second anastomosis rings may be easily fixed to the first and second clamps 12 and 14 through the rotation of the rotation rod 18.

As shown in FIG. 1, the anastomosis device further includes a head 20. The head 20 is located in the proximal direction of the first and second clamps 12 and 14 located in the standby position ('standby position'), and moves toward the first and second clamps 12 and 14 so that The first and second clamps 12, 14 are driven to approach each other. The head 20 has guide surfaces 21, 22, 23, 24 for supporting the first and second clamps 12, 14, and the head 20 carries the first and second clamps 12, 14. When moving toward, the first and second clamps 12 and 14 approach each other while moving along the guide surface. Detailed description of the principle of the movement of the head 20 will be described later.

As shown in FIG. 2A, the guide surface has first and second switching surfaces 21 and 23 and first and second moving surfaces 22 and 24. The first and second switching surfaces 21 and 23 are formed to be inclined upward toward the proximal portion of the head 20, respectively, and are formed to be substantially symmetrical with respect to the rotation rod 18. The first and second moving surfaces 22, 24 extend from the proximal ends of the first and second switching surfaces 21, 23, and likewise are formed to be generally symmetrical about the pivoting rod 18.

As shown in FIG. 2A, the head 20 further includes first and second support bars 26 and 28, wherein the first and second support bars 26 and 28 are formed of first and second moving surfaces ( 22 and 24, respectively. Similarly, the first and second support bars 26 and 28 are formed to be substantially symmetrical with respect to the rotation rod 18. The eject pin 29 is installed between the first support bar 26 and the second support bar 28 and is disposed substantially parallel to the first and second support bars 26 and 28.

3A to 3C are side views illustrating the switching of the clamp according to the operation of the head. Hereinafter, the first clamp 12 will be described as an example, and since the second clamp 14 operates in the same manner as the first clamp 12, a detailed description of the operation of the second clamp 14 will be omitted. do.

As shown in FIG. 3A, the head 20 is located in the proximal direction of the first clamp 12 located in the standby position, and the first clamp 12 is a guide surface (or first switching) of the head 20. Face 21). As shown in FIG. 3B, when the head 20 advances toward the first clamp 12, the first clamp 12 moves along the first transition surface 21 of the head 20 (relatively). Implying movement), whereby the first clamp 12 approaches the second clamp 14. Similarly, the second clamp 14 also moves along the second switching surface 23 of the head 20 (meaning relative movement), where the second clamp 14 also faces the first clamp 12. Approach Then, as shown in FIG. 3C, when the first and second clamps 12 and 14 pass through the proximal ends of the first and second switching surfaces 21 and 23, the first and second clamps 12, 14 is approached to the maximum ('anastation position'), and the first and second anastomosis rings fixed to the first and second clamps 12 and 14, respectively, are fastened to each other.

The principle in which the first clamp 12 approaches the second clamp 14 will be described in detail as follows. As the head 20 moves, the first clamp 12 is sliding contact along the first switching surface 21 and the first clamp 12 is in contact with the first switching surface 21. Since the position of the first clamp 12 is limited by the first switching surface 21 as the position moves away from the rotational shaft 16, the first clamp 12 approaches toward the second clamp 14. do.

4 is a cross-sectional view showing a rotating rod and a driving rod installed in the body and the body shown in FIG. As shown in FIG. 4, the anastomosis device further includes a body 30 and a driving rod 32. As shown in FIG. 1, the body 30 is located in the proximal direction of the head 20, and the body 30 has open proximal and distal portions and hollows connecting the proximal and distal portions. The drive rod 32 is inserted into the hollow portion of the body 30, and like the body 30, the drive rod 32 has an open proximal and distal portions, and a hollow connecting the proximal and distal portions. Have The head 20 described above is connected to the distal end of the driving rod 32, the head 20 is moved when the driving rod 32 moves along the longitudinal direction of the body 30 within the hollow of the body 30. It moves with the drive rod 32. The connector 45 to be described later is connected to the proximal end of the drive rod 32.

The rotation rod 18 described above is inserted into the hollow portion of the driving rod 32, and the rotation rod 18 is fixedly installed in the hollow portion of the driving rod 32 through the fixture 36. One end of the fixture 36 penetrates through the body 30 and is inserted into the guide groove 18a of the rotation rod 18. The rotation rod 18 has one end of the fixture 36 inserted into the guide groove 18a. Can rotate freely in the state. At this time, the fixture 36 and the rotation rod 18 do not move when the driving rod 32 moves.

Similarly, the drive rod 32 does not rotate when the rotation rod 18 rotates. The rotating lever 19 to be described later is connected to the proximal end of the rotating rod 18 exposed through the hollow portion of the connector 45, the rotating rod 18 is rotated by the rotation of the rotary lever 19.

5A and 5B are views illustrating the operation of the driving rod according to the rotation of the handle. As shown in FIG. 5A, the anastomosis device further includes first and second handles 42 and 44, first and second fingerings 46 and 48, and first and second links 41 and 43. do.

The first and second handles 42 and 44 are pivotally connected to the proximal portion of the body 30, respectively, and the first and second fingerings 46 and 48 are connected to the first and second handles 42 and 44, respectively. It is fixed to the proximal part. The operator inserts a finger into the first and second finger rings 46 and 48, respectively, and then retracts and removes the first and second handles 42 and 44 in the same manner as the forceps. The first and second handles 42 and 44 rotate in a state of being connected to the body 30, respectively.

As shown in FIG. 5A, the first and second handles 42 and 44 have first and second mounting grooves 42a and 44a, respectively, and the first and second links 41 and 43 are firstly formed. And one end is rotatable on the second installation grooves 42a and 44a. The other ends of the first and second links 41 and 43 are rotatably connected to the connector 45.

In the connected state, as shown in FIG. 5B, when the first and second handles 42 and 44 are pinched in the direction of the arrow using the first and second fingerings 46 and 48, the first and second The first and second links 41 and 43 push the connector 45 towards the body 30 while the angle between the two handles 42 and 44 decreases, and the connector 45 moves towards the body 30. do. In this case, the driving rod 32 moves together with the connector 45, and as described above, the driving rod 32 moves along the hollow portion of the body 30. At this time, as described above, the rotation rod 18 and the rotary lever 19 does not move.

As described above, when the driving rod 32 moves, the head 20 is fixed to the distal end of the driving rod 32 and moves together with the driving rod 32. As the head 20 moves, the first and second clamps 12 and 14 move to the anastomotic position, whereby the first and second anastomosis rings can be fully engaged as described above.

6A and 6B are side views illustrating the operation of the first and second clamps moving along the moving surface. On the other hand, as described above, although the first and second anastomosis ring should be fastened together as the first and second clamps 12 and 14 move along the first and second switching surfaces 21 and 23. If the first and second switching surfaces 21, 23 do not exert sufficient force against the first and second clamps 12, 14, the first and second clamps 12, 14 are not sufficiently accessible. Or the first and second anastomosis rings may not be securely fastened. If the first and second anastomosis rings are not securely fastened, smooth flow in the tubular organs cannot be realized. Thus, the first and second support bars 26, 28 help the first and second clamps 12, 14 to be sufficiently accessible so that the first and second anastomosis rings can be securely fastened.

As shown in FIG. 6A, the first clamp 12 reaching the proximal end of the first switching surface 21 moves along the first moving surface 22 extending from the proximal end of the first switching surface 21. do. Similarly, the second clamp 14 reaching the proximal end of the second switching surface 23 moves along the second moving surface 24 extending from the proximal end of the second switching surface 23. In this case, as shown in FIG. 6B, the first and second clamps 12 and 14 which approach each other are inserted between the first support bar 26 and the second support bar 28, and the first and second clamps 12 and 14 are provided. 2 The support bars 26 and 28 support (or pressurize) the outside of the first and second clamps 12 and 14 so that the first and second clamps 12 and 14 fully approach the first and second doors. Helps to secure the mating ring securely. At this time, the first and second moving surfaces 22 and 24 press down the first and second clamps 12 and 14, and the first and second support bars 26 and 28 are the first and second clamps. Pressing the top of (12, 14) helps to ensure that the first and second anastomosis rings are fully engaged.

Meanwhile, the first and second anastomosis rings move toward the eject pin 29 together with the first and second clamps 12 and 14 (meaning relative movement) after the fastening, and the first and second clamps 12 As the 14 moves, the eject pin 29 is inserted between the first and second clamps 12 and 14 to separate the first and second anastomosis rings from the first and second clamps 12 and 14. This ends the anastomosis of the coronary organ using the first and second anastomosis rings.

7 and 8 are cross-sectional views showing the operation of the holder according to the operation of the drive rod shown in Figs. 5A and 5B. As shown in FIG. 7, the driving rod 32 has a plurality of position grooves 39 formed along the longitudinal direction of the driving rod 32 on the outer circumferential surface of the driving rod 32. The positioning grooves 39 are inclined toward the proximal end of the driving rod 32. In addition, the holder 38 is rotatably installed at the proximal end of the body 30, the lower end of the holder 38 is inserted into any one of the position grooves 39 in a tip shape.

As described above, when the driving rod 32 is moved by pinching the first and second handles 42 and 44, the lower end of the holder 38 moves along the position grooves 39, and the driving rod 32 is moved. Move toward the proximal end. However, when the driving rod 32 tries to return to its original position in the direction of the arrow shown in Fig. 7, the lower end of the holder 38 is inserted into one of the position grooves 39, where the holder 38 ) Is limited by the rotation of the body 30, the return of the drive rod 32 is limited. Therefore, in the process of fastening the anastomosis ring by the movement of the driving rod 32 (or the head 20), it is possible to prevent the driving rod 32 (or the head 20) from moving in the reverse direction. This can prevent errors during the procedure.

If the fastening of the anastomosis ring is completed and the driving rod 32 (or the head 20) is returned to its original position, as shown in FIG. 8, the holder 38 is pressed to rotate in the direction of the arrow. After the lower end of the holder 38 is separated from the position groove 39, the driving rod 32 (or the head 20) may be returned to the original position.

Although the present invention has been described in detail by way of preferred embodiments thereof, other forms of embodiment are possible. Therefore, the technical idea and scope of the claims set forth below are not limited to the preferred embodiments.

12,14 clamp 16: rotating shaft
18: rotating rod 19: rotating lever
20: head 21,23: switching surface
22,24: Moving surface 26,28: Support bar
30: body 32: driving rod
38: holder 41,43: link
42,44: handle 45: connector
46,48: Fingering

Claims

A body having an open proximal and distal portions and a hollow connecting the proximal and distal portions;
A rotation rod inserted into the hollow portion and having a distal end drawn out through the distal portion;
First and second clamps each having a first and second anastomosis ring fixed thereto, the first and second clamps being rotatably installed at the distal end of the rotation rod to be switched to a standby position and an anastomosis position by rotation;
A driving rod inserted into the hollow part and having a distal end drawn out through the distal part;
Installed at the distal end of the drive rod so as to be adjacent to the distal portion of the body and moving with the drive rod, supporting the first and second clamps and moving in a direction spaced apart from the distal portion; A head having a guide surface for switching a clamp to the anastomotic position;
First and second handles respectively rotatably mounted to the proximal portion of the body; And
And a first link and a second link connecting the proximal end of the driving rod to the first and second handles, respectively, and moving the driving rod by rotating according to an angle formed by the first and second handles. Anastomosis device.

The method of claim 1,
Distal ends of the first and second links are connected to the distal ends of the drive rod, proximal ends of the first and second links are respectively connected to the first and second handles,
And the angle formed by the first and second links increases and decreases according to the angle formed by the first and second handles.

The method according to claim 1 or 2,
The anastomosis device further includes a connector connected to the proximal end of the drive rod,
And the first and second links are connected to the driving rod through the connector.

The method of claim 1,
The anastomosis device further includes a rotation lever connected to the proximal end of the rotation rod to rotate together with the rotation rod,
And the first and second clamps move together when the rotation rod rotates.

The method of claim 1,
The guide surface has a switching surface in which the first and second clamps are switched from the standby position to the anastomotic position, and a moving surface in which the first and second clamps converted to the anastomosis position move,
The head is provided with an anastomosis device, characterized in that provided on the upper side of the moving surface and the first and second support bars for supporting the outside of the first and second clamps, respectively.

The method of claim 1,
The driving rod has a plurality of position grooves formed along the longitudinal direction of the driving rod,
The anastomosis device is an anastomosis device further comprising a holder which is rotatably connected to the head and is inserted into one of the position grooves to fix the position of the driving rod when the driving rod is moved.