CN104783855B - Purse suturing device and its purse rope control device - Google Patents

Abstract

The invention provides a kind of purse-string suture device and its pocket rope actuation means.This pocket rope actuation means includes：First element, including the first clamping face, forms the grasping part for clamping pocket rope between the second clamping face on the nail bin of the first clamping face and purse-string suture device；Flexible member, grasping part is closed in the presence of flexible member 5；Second element, one end of flexible member acts on the second element.The present invention firmly can effectively fix pocket rope, improves operability, stability in operation process, and rope disengaging control before and after solving purse string suture disengages problem with automatic, so that operation is smoothly launched, the stability of minimizing operating time and operation process.

Description

Purse suturing device and its purse rope control device

technical field

The invention relates to the field of medical devices, and more specifically, to a purse-string suturing device and a purse-string control device thereof.

Background technique

Surgical purse-string stapler is a kind of medical device that is often used in surgical operations on intestinal and other physiological tissues. Its performance directly affects the operation process and plays a very important role in the operation effect.

In the prior art, when using a stapler for suturing operations, purse-string sutures must be performed on the stump of the organ, so that it can be firmly ligated after the central rod is inserted, and then the stapling operation can be implemented. At present, the most commonly used method is to use a purse-string suture device for surgical suture, which requires full-thickness suturing of the tissue, and the suture cannot penetrate into the contralateral tissue. Therefore, when the tissue is clamped in the jaws, the front and rear walls of the lumen tissue must divided. However, because the existing purse-string stapler adopts the engagement mode of tooth peaks to tooth valleys, it is easy to cause sutures to penetrate into the contralateral tissue during suturing, resulting in operation failure.

In the prior art, the edge of the groove of the fixed rope is compressed by the compression of the external force (or the notch is directly made into a concave shape), so that the two right-angled sides of the groove are bent to achieve the fixed rope, the fixation is unstable, and the purse after fixing The rope is easily affected by external force before being fired and detached from the fixed inner groove, and after detachment, it cannot be fixed again.

Contents of the invention

The present invention provides a purse string suturing device and its purse string control device to at least solve the technical problems in the prior art that the purse string cannot be normally fixed on the staple cartridge and is easily disengaged without being fired.

An embodiment of the present invention provides a purse string control device for a purse string stapler, comprising: a first element, including a first clamping surface, between the first clamping surface and the second clamping surface on the staple cartridge of the purse string stapler A clamping space for clamping the purse rope is formed between them; the elastic element, the clamping space is in a closed state under the action of the elastic element 5; the second element, one end of the elastic element acts on the second element.

Optionally, the first element includes a clamping portion and a base that are connected to each other, an inclined surface used as a first clamping surface is formed on the clamping portion, the second element includes a second element body, and the second element body is provided with In the accommodating cavity, the base is movably arranged in the accommodating cavity, and the elastic element is arranged between the bottom surface of the accommodating cavity and the bottom surface of the base.

Optionally, the side wall of the base is provided with two first locking parts in the vertical direction, and the side wall of the accommodating cavity is provided with a second locking part selectively matched with any one of the two first locking parts .

Optionally, the base is provided with a guide groove, and the two first locking parts are arranged in the guide groove; a protruding guide bar is formed on the side wall of the accommodating cavity, and the second locking part is formed on the guide bar; the guide bar is located on the in the guide groove.

Optionally, a V-shaped opening is formed on the clamping portion, and two sides of the V-shaped opening form inclined surfaces.

Optionally, the first element is a cylinder, the second element is connected to one end of the first element, the elastic element is sleeved on the cylinder, and the first clamping surface is formed at the other end of the cylinder.

Optionally, one end of the cylinder is connected to the second element through a pin, the other end of the cylinder is in the shape of an inverted truncated cone, and the circumferential side of the inverted truncated cone forms the first clamping surface.

Optionally, the second element is provided with an accommodating cavity, and two pin openings extending along the axial direction of the second element and symmetrically arranged are formed on the side wall of the accommodating cavity, and the ends of the two pin openings away from the first element are along the The circumferential direction of the two elements extends along the same direction to form a bayonet for fixing the pin.

The present invention also provides a purse string control device for a purse string stapler, comprising: a first element, including a first clamping surface, between the first clamping surface and the second clamping surface on the staple bin of the purse string stapler A clamping space for clamping the purse rope is formed; the second element, when the second element is in the first position, presses the first element so that the clamping space is in a closed state; the elastic element, when the second element is in the second position, it is elastic Under the action of the element, the clamping space is switched to the open state.

Optionally, the second element includes a second element body and a first protrusion, and the first protrusion is connected to the side of the second element body; the first element includes a first element body and a second protrusion, and the first element has a At the first escape portion on the side of the second protrusion, the second protrusion is arranged corresponding to the first protrusion; one end of the elastic element is connected to the side of the first element away from the second element, and the other end is connected to the staple cartridge ; The first clamping surface is formed on the surface of the first element on the side away from the second element.

Optionally, a third locking portion is provided on the first protrusion, and a fourth locking portion that cooperates with the third locking portion is disposed on the second protrusion.

The present invention also provides a purse-string suturing device, including the above-mentioned purse-string control device.

The invention can firmly and effectively fix the purse rope, improve the operability and stability during the operation, solve the problem of rope detachment control and automatic disengagement before and after the purse suture, enable the operation to be carried out smoothly, reduce the operation time and the stability of the operation process .

Description of drawings

1 is a schematic diagram of an exploded structure of a first embodiment of the present invention;

Fig. 2 is the assembly diagram of the first embodiment of the present invention;

3 is a schematic structural view of the first embodiment of the present invention when the clamping space is in a closed state;

4 is a schematic structural view of the first embodiment of the present invention when the clamping space is in an open state;

5 is a schematic perspective view of the three-dimensional structure of the first embodiment of the present invention when the clamping space is in a closed state;

6 is a schematic perspective view of the three-dimensional structure of the first embodiment of the present invention when the clamping space is in an open state;

7 is a schematic diagram of an exploded structure of a second embodiment of the present invention;

Fig. 8 is the assembly diagram of the second embodiment of the present invention;

9 is a schematic structural view of the second embodiment of the present invention when the clamping space is in a closed state;

10 is a schematic structural view of the second embodiment of the present invention when the clamping space is in an open state;

Fig. 11 is a schematic perspective view of the clamping space of the second embodiment of the present invention when the clamping space is in a closed state;

Fig. 12 is a schematic perspective view of the clamping space of the second embodiment of the present invention when the clamping space is in an open state;

Fig. 13 is a schematic diagram of an exploded structure of a third embodiment of the present invention;

Fig. 14 is a schematic assembly diagram of the third embodiment of the present invention;

Fig. 15 is a schematic structural view of the third embodiment of the present invention when the clamping space is in a closed state;

Fig. 16 is a schematic structural view of the third embodiment of the present invention when the clamping space is in an open state;

17 is a schematic perspective view of the third embodiment of the present invention when the clamping space is in a closed state;

Fig. 18 is a schematic perspective view of the third embodiment of the present invention when the clamping space is in an open state.

Reference signs in the figure: 1, first element; 2, first clamping surface; 3, staple cartridge; 4, second element; 5, elastic element; 6, clamping part; 7, base; 8, tilt 9, the second element body; 10, the first locking part; 11, the second locking part; 12, the guide groove; 13, the guide bar; 14, the pin; 18, the first avoidance part; 19, the second protrusion; 20, the third locking part; 21, the fourth locking part; 22, the first block; 23, the first slot; 24, the second 25, the second card slot; 26, the second clamping surface; 27, purse string; 28, V-shaped opening; 29, inverted cone shape; 30, avoidance groove;

The following specific embodiments are used to further illustrate but not limit the present invention, and the following example is only a preferred embodiment of the present invention.

detailed description

Please refer to Fig. 1 to Fig. 12, the present invention provides a purse string control device for a purse-string stapler, comprising: a first element 1, including a first clamping surface 2, the first clamping surface 2 and the staple of the purse-string stapler A clamping space for clamping the wallet rope 27 is formed between the second clamping surfaces 26 on the warehouse 3; the elastic element 5, the clamping space is in a closed state under the action of the elastic element 5; the second element 4 , one end of the elastic element 5 acts on the second element 4 .

Due to the adoption of the above-mentioned technical solution, under the action of the elastic element 5, the first element 1 closes the clamping space, so that the wallet rope 27 entering the clamping space is clamped by the first clamping surface 2 and the second clamping space. Surface 26 clamps, thereby, realized the reliable fixation of purse string, and the purse string after fixing will not be affected by external force and break away before percussion, thereby can avoid the problem that purse string breaks away and can't be fixed again after breaking away.

In addition, before use, the purse rope can be pre-fixed in the present invention, so that it does not need to be sorted out by hand before use as in the prior art, thereby not causing time delay and inconvenience to the operation, and improving the quality of life. The success rate of the purse-string suture. After the suturing is completed, the clamping space can also be opened by firing the purse string stitcher. At this time, the first clamping surface and the second clamping face move away from each other, thereby providing automatic detachment for the purse string. The activity space realizes the automatic disengagement of the purse rope.

Please refer to the embodiment shown in FIGS. 1 to 6 , preferably, the first element 1 includes a clamping portion 6 and a base 7 connected to each other, and an inclined surface used as the first clamping surface 2 is formed on the clamping portion 6 8. The second element 4 includes a second element body 9, the second element body 9 is provided with an accommodation cavity, the base 7 is movably arranged in the accommodation cavity, and the elastic element 5 is arranged on the bottom surface of the accommodation cavity and the bottom surface of the base 7 between the bases. In this embodiment, both the first clamping surface 2 and the second clamping surface are sloped, more preferably, a V-shaped opening 28 is formed on the clamping portion 6, and the two sides of the V-shaped opening 28 form an inclined surface 8 . In this way, a wedge-shaped structure can be formed. In this structure, the clamping space is inclined. Therefore, the purse string can be clamped more effectively to prevent the purse string from detaching. In addition, the base 7 can move up and down in the receiving cavity of the second component body 9 . In this embodiment, the second element 4 is fixedly arranged relative to the staple cartridge 3 , while the first element 1 is movably arranged relative to the staple cartridge 3 .

Please refer to FIG. 5 and FIG. 6 , during operation, the first element 1 can be pushed downward, so the elastic element 5 is compressed, and the base 7 moves downward in the receiving chamber of the second element body 9 . Then, the first clamping surface is separated from the second clamping surface, thereby opening the clamping space, so that the purse string can be disengaged automatically.

Please refer to Fig. 3 and Fig. 4, in a preferred embodiment, two first locking parts 10 are arranged vertically on the side wall of the base 7, and two first locking parts 10 are arranged on the side wall of the accommodating cavity. Any one of the locking parts 10 selectively cooperates with the second locking part 11 . The position locking of the first element 1 can be realized through selective cooperation between two first locking parts 10 and one second locking part 11 . For example, as shown in Figure 3, when the clamping space is in a closed state, the first locking part 10 of the lower part cooperates with the second locking part 11 to lock the first element 1 to prevent the accidental disengagement of the purse rope; As shown in Figure 4, when the clamping space is in an open state, the upper first locking part 10 cooperates with the second locking part 11 to lock the first element 1 to prevent the first element 1 from acting on the elastic element 5 The downward and upward movement causes the clamping space to close, thereby ensuring the automatic disengagement of the purse rope.

Please refer to Fig. 3 and Fig. 4, in a preferred embodiment, the base 7 is provided with a guide groove 12, and the two first locking parts 10 are arranged in the guide groove 12; The guide bar 13 , the second locking portion 11 is formed on the guide bar 13 ; the guide bar 13 is located in the guide groove 12 . During installation, the base 7 of the first element 1 can be inserted into the accommodating cavity of the second element 4 through the guide groove 12, so as to realize the assembly of the two. At the same time, the guide bar 13 also limits the space for the first element 1 to move up and down.

7 to 12 provide another preferred embodiment of the present invention. As shown in Figures 7 to 12, preferably, the first element 1 is a cylinder, the second element 4 is connected to one end of the first element 1, the elastic element 5 is sleeved on the cylinder, and the first clamping surface 2 is formed on the other end of the column. In this embodiment, both the first element 1 and the second element 4 are movably arranged relative to the staple cartridge 3 . Please refer to Figure 9 and Figure 10, the first clamping surface 2 and the second clamping surface are both annular or arc-shaped slopes, preferably, one end of the cylinder is connected to the second element 4 through a pin 14, and the cylinder's The other end is in the shape of an inverted truncated cone 29 , and the circumferential side of the inverted truncated cone 29 forms the first clamping surface 2 . In this way, a truncated cone-shaped wedge-shaped structure can be formed. In this structure, the clamping space is inclined. Therefore, the clamping of the purse string can be realized more effectively and the detachment of the purse string can be prevented.

Preferably, please refer to FIG. 7 and FIG. 8 , the second element 4 is provided with a housing cavity, and two pin openings 15 extending along the axial direction of the second component 4 and symmetrically arranged are formed on the side wall of the housing cavity. An end of the opening 15 away from the first element 1 extends in the same direction along the circumference of the second element 4 to form a bayonet 16 for fixing the pin 14 . In this way, during installation, the elastic element 5 is sleeved on the outside of the first element 1, and then the pin 14 is passed through the lower end of the first element 1, and the pin 14 is moved to the inside of the second element 4 along the pin opening 15, When reaching the bottom of the pin opening 15, the pin 14 is rotated so that the two ends of the pin 14 are rotated into the bayonet opening 16, and like this, assembly is realized.

In the embodiment shown in FIGS. 11 and 12 , as shown in FIG. 11 , under the action of the elastic element 5 in the natural state, the first clamping surface 2 of the first element 1 and the second clamping surface 2 on the staple cartridge 3 The clamping space formed between the two clamping surfaces is in a closed state, and the purse rope is clamped and fixed by the first clamping surface 2 and the second clamping surface. When the sewing is finished, the second element 4 is pushed upward, so the elastic element 5 is compressed, and at the same time, the second element 4 drives the pin 14 and the first element 1 stuck in its bayonet 16 to move upward, so that the first element The clamping space formed between the first clamping surface 2 of the staple cartridge 3 and the second clamping surface on the staple cartridge 3 is in an open state, as shown in FIG. The gap between the surface 2 and the second clamping surface (that is, the clamping space in the open state) is automatically disengaged.

Please refer to FIG. 13 to FIG. 18 , the present invention also provides a purse string control device for a purse-string stapler, including: a first element 1, including a first clamping surface 2, the first clamping surface 2 and the purse-string stapler A clamping space for clamping the purse string 27 is formed between the second clamping surfaces 26 on the staple bin 3; the second element 4, when the second element 4 is in the first position, presses the first element 1 so that the The clamping space is in a closed state; the elastic element 5, when the second element 4 is in the second position, the clamping space is switched to an open state under the action of the elastic element 5 .

Please refer to FIG. 15 to FIG. 18 , in this embodiment, the first clamping surface and the second clamping surface are arranged vertically. One end of the elastic element 5 is in contact with the staple bin 3 (for example, installed in the mounting hole on the vertical side wall of the nail bin 3), and the other end is in contact with the vertical side of the first element 1 away from the second element 4. The side wall abuts (for example, an installation hole for installing the elastic element 5 can also be opened on this side wall). When the first element 1 and the second element 4 are vertically and substantially parallel installed into the installation groove in the staple cartridge 3 , the second element 4 is located on the side of the first element 1 away from the elastic element 5 . At this time, the second element 4 pushes the first clamping surface 2 of the first element 1 towards the second clamping surface of the staple cartridge 3, thereby closing the clamping space. When the second element 4 is pushed down to move to the second position, the second element 4 makes room for the first element 1 to move to the right, so under the action of the elastic element 5, the first element 1 Move to the right, so that the first clamping surface is separated from the second clamping surface (as shown in Figure 18), thereby realizing the automatic detachment of the purse rope.

Please refer to Fig. 15 to Fig. 18, preferably, the second element 4 includes a second element body and a first protrusion 17, and the first protrusion 17 is connected to the side of the second element body; the first element 1 includes a first element body And the second protrusion 19, the first element 1 has a first escape portion 18 formed on one side of the second protrusion 19, the second protrusion 19 is set correspondingly to the first protrusion 17; one end of the elastic element 5 is connected to the first protrusion 19 The side of one element 1 away from the second element 4 is connected, and the other end is connected with the staple cartridge 3 ; the first clamping surface 2 is formed on the surface of the first element 1 away from the second element 4 . As shown in Figure 15, in the first position, the end surfaces of the first protrusion 17 and the second protrusion 19 abut against each other, thereby realizing the closing of the clamping space between the first clamping surface and the second clamping surface . As shown in FIG. 16 , in the second position, the first protrusion 17 moves into the first avoidance portion 18 of the first element 1 , thereby making room for the first element 1 to move to the right. In a preferred embodiment, there are two first protrusions 17 and two second protrusions 19 .

Please refer to FIG. 15 to FIG. 18 , preferably, the first protrusion 17 is provided with a third locking portion 20 , and the second protrusion 19 is provided with a fourth locking portion 21 cooperating with the third locking portion 20 . As shown in FIG. 15 , when the second element 4 is at the first position, the third locking part 20 cooperates with the fourth locking part 21 to realize locking. For example, the third locking portion 20 may be a spherical protrusion, and the fourth locking portion 21 may be a spherical depression. When a downward thrust is applied to the second member 4 , the locked state between the third locking portion 20 and the fourth locking portion 21 is released.

Please refer to FIG. 15 to FIG. 18 , preferably, the side of the second component 4 away from the first component 1 is provided with a first locking groove 23 for cooperating with the first locking block 22 on the staple cartridge 3 . When the second component 4 is pushed downward, the first locking slot 23 moves downward, thereby being locked on the first locking block 22 . In this way, the second element 4 can be kept in the second position, preventing it from returning upwards to the first position, thereby improving the reliability when the purse string is automatically disengaged.

Please refer to FIG. 15 to FIG. 18 , preferably, the side of the first component 1 away from the second component 4 is provided with a second locking groove 25 for cooperating with the second locking block 24 on the staple cartridge 3 . As shown in FIG. 15 , through the cooperation of the second locking block 24 and the second locking groove 25 , the first element 1 can be fixed in the longitudinal direction and prevented from moving in the longitudinal direction. As shown in FIG. 16 , when the first component 1 is moved to the right, the second locking slot 25 slides along the horizontal direction of the second locking block 24 until it disengages.

Preferably, please refer to FIGS. 13 and 14 , a longitudinal relief groove 30 is provided on the first protrusion 17 , and a reinforcing rib 31 is disposed in the first relief portion 18 between the two second protrusions 19 . When switching from the first position to the second position, the reinforcing rib 31 enters the avoidance groove 30 . In this way, the rightward movement of the first element 1 is not hindered, and the strength of the first element 1 can be ensured.

The present invention also provides a purse-string suturing device, including the above-mentioned purse-string control device.

The purse string control device of the purse string suture device in the present invention can be used to fix the purse string and can automatically disengage the purse string. Through the present invention, the purse rope can be firmly fixed in the purse rope fixing groove on the nail bin, and the purse rope can be disengaged from the present invention while the device is being fired, ensuring the fixation before use and during use. The synchronous disengagement solves the problem that the current purse string cannot be fixed on the staple cartridge and is easy to disengage without firing.

The invention can firmly and effectively fix the purse rope in any state, improve the operability and stability during the operation, solve the problem of rope detachment control and automatic disengagement before and after the purse suture, so that the operation can be carried out smoothly, and the operation time and cost are reduced. Stability of the surgical procedure.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. a kind of pocket rope actuation means of purse-string suture device are it is characterised in that include：

First element (1), including the first clamping face (2), the nail bin (3) of described first clamping face (2) and described purse-string suture device On the second clamping face (26) between form grasping part for clamping pocket rope (27)；

Flexible member (5), described grasping part is closed in the presence of described flexible member (5)；

Second element (4), one end of described flexible member (5) acts on described second element (4).

2. pocket rope actuation means according to claim 1 are it is characterised in that described first element (1) includes mutually interconnecting The clamping part (6) connecing and pedestal (7), described clamping part (6) is formed with the inclined plane (8) as described first clamping face (2), Described second element (4) includes the second component body (9), described second component body (9) is provided with accommodating chamber, described pedestal (7) it is movably arranged as described receiving intracavity, and described flexible member (5) is arranged on the bottom surface of described accommodating chamber and described pedestal (7) between bottom surface.

3. pocket rope actuation means according to claim 2 are it is characterised in that along vertically on the side wall of described pedestal (7) Direction is provided with two the first sticking departments (10), the side wall of described accommodating chamber is provided with and described two first sticking departments (10) Any one of selective incubation the second sticking department (11).

4. pocket rope actuation means according to claim 3 are it is characterised in that be provided with gathering sill on described pedestal (7) (12), described two first sticking departments (10) are arranged in described gathering sill (12)；It is formed with prominent on the side wall of described accommodating chamber The gib block (13) going out, described second sticking department (11) is formed on described gib block (13)；Described gib block (13) is located at institute State in gathering sill (12).

5. pocket rope actuation means according to claim 2 are opened it is characterised in that being formed with V-arrangement on described clamping part (6) Mouthful, two sides of described V-arrangement opening form described inclined plane (8).

6. pocket rope actuation means according to claim 1 are it is characterised in that described first element (1) is cylinder, described Second element (4) is connected with one end of described first element (1), and described flexible member (5) is enclosed within described cylinder, and described first Clamping face (2) is formed at the other end of described cylinder.

7. pocket rope actuation means according to claim 6 it is characterised in that one end of described cylinder with described second yuan Part (4) passes through pin (14) and connects, and the other end of described cylinder is in inversed taper platform shape (29), the peripheral side of described inversed taper platform shape (29) Face forms described first clamping face (2).

8. pocket rope actuation means according to claim 7 are it is characterised in that be provided with appearance on described second element (4) Receive chamber, the side wall of described accommodating chamber forms axially extending and symmetrically arranged two lock-joints along described second element (4) (15), one end away from described first element (1) of described two lock-joints (15) is along the circumference of described second element (4) along same Direction forms, after extending, the bayonet socket (16) being used for fixing described pin (14).

9. a kind of pocket rope actuation means of purse-string suture device are it is characterised in that include：

First element (1), including the first clamping face (2), on the first clamping face (2) and the nail bin (3) of purse-string suture device second Form the grasping part for clamping pocket rope (27) between clamping face (26)；

Second element (4), the second element (4) oppresses described first element (1) so that at described grasping part in primary importance In closed mode；

Flexible member (5), it is empty that the second element (4) is in during the second position described clamping in the presence of described flexible member (5) Between switch to open mode.

10. the pocket rope actuation means stated according to claim 9 are it is characterised in that described second element (4) includes the second element Body and the first projection (17), described first projection (17) is connected with the side of described second component body；Described first element (1) the first component body and the second projection (19) are included, described first element (1) has and is formed at described second projection (19) First relief portion (18) of side, described second projection (19) is arranged in correspondence with described first projection (17)；Described flexible member (5) one end is connected away from the side of described second element (4) with described first element (1), the other end and described nail bin (3) Connect；Described first clamping face (2) is formed at the surface of the side away from described second element (4) of described first element (1) On.

11. pocket rope actuation means according to claim 10 are it is characterised in that be provided with described first projection (17) 3rd sticking department (20), described second projection (19) is provided with the 4th sticking department being coordinated with described 3rd sticking department (20) (21).

A kind of 12. purse-string suture devices are it is characterised in that include the pocket rop exercise control dress any one of claim 1 to 11 Put.