KR101444058B1

KR101444058B1 - Double bladed surgical stapling device

Info

Publication number: KR101444058B1
Application number: KR1020140090940A
Authority: KR
Inventors: 강민웅
Original assignee: 충남대학교산학협력단
Priority date: 2014-07-18
Filing date: 2014-07-18
Publication date: 2014-09-23
Also published as: WO2016010198A1

Abstract

The present invention relates to a surgical stapler for stapling a surgical site during surgical operation, more specifically, to a surgical stapler having double blades, which includes: a staple cartridge accommodating staples on left and right sides of a center of an accommodating part, which is provided on a lower jaw operating by a manipulation of a user, along a longitudinal direction of the accommodating part to staple a biological tissue by staples emerging upward according to a manipulation of the user; and a pair of cutters provided parallel to each other at a rear end of a staple cartridge body to cut as well as collect a biological tissue disposed between an upper jaw and the lower jaw while advancing along the staple cartridge body, wherein a designated part is stapled during an operation and the part that is being stapled is cut and a part of the biological tissue is collected right away so that a rapid frozen section examination, which determines whether a cancer cell or other abnormal cell is present from the collected biological tissue, is performed during the operation.

Description

[0001] Double bladed surgical stapling device [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical staple apparatus, and more particularly, to a surgical staple apparatus for stapling a surgical site in a surgical operation, cutting a surgical site for stapling, To a surgical staple apparatus.

Medical surgical staples used in abdominal and thoracic long-term surgery are medical instruments that are widely used for ablation and anastomosis of organs. The advantage of this device is the device that can perform anastomotic anastomosis at the same time as the ablation, not only shortening the operation time, but also the accurate suture of the surgical site can be achieved. Medical staples include open staples used in open or open conditions, and endo staples used in thoracoscopic and laparoscopic procedures.

Laparoscopic surgery and robotic surgery, which are endoscopic surgery that can reduce recovery time and complications after surgery with a small incision, have been actively used recently.

Endoscopic laparoscopic, thoracoscopic, and robotic surgery is widely used in general surgical operations such as surgery through a large number of small holes in the abdomen of a patient and observing the interior of the abdominal cavity or thoracic cavity through the hole.

Such laparotomy and open thoracotomy and laparoscopic and thoracoscopic surgery are performed by a suture device inserted into the body to suture the surgical site in organs of the abdominal cavity or thoracic cavity. A stapler device is utilized.

The surgical staple apparatus described above is a device for tissue resection and suture , which is widely used in modern surgery due to its quick recovery and less scar than surgical suture . In particular, It is widely used for suturing ablation sites.

For the above reasons, a variety of surgical staple apparatuses have been provided in recent years. Some of them are disclosed in Japanese Patent Application No. 10-1226542 (Jan. 21, 2013) as a surgical tool, including a handle portion operable to generate a firing motion, Wherein the executer comprises a elongated channel coupled to the handle portion and including a channel slot, a driver accommodated by the elongate channel and supporting a staple for upward camming A staple cartridge having a wedge member positioned in an aligned proximal side, an anvil pivotally coupled to the elongate channel and including an anvil channel, an elongated channel received longitudinally between the elongate channel and the anvil, A bottom cutting edge, a top member engageable with the anvil channel, a bottom member engaging the channel slot, And an intermediate member operable to actuate the staple cartridge by translating the wedge member of the staple cartridge to a distal side, wherein during an elongated firing movement to provide a gap therebetween for staple formation, the elongated channel and the anvil- A firing device coupled proximally to the elongated channel and a thin firing attached proximal to the firing device for transferring firing motion from the handle portion through the articulating joint, A surgical tool including a strip was provided.

The disposable staple cartridge for a surgical cutting-fastening mechanism is disclosed in Japanese Patent No. 10-1369235 (Feb. 25, 2014), which is a disposable cartridge body operatively supporting a plurality of staples therein, Fastening mechanism is arranged to be fired in order from the disposable cartridge body by an axially displaceable drive of the cutting-fastening mechanism and is removably supported in the long channel of the surgical cutting-fastening mechanism during use, Said disposable cartridge body comprising a dimension to be removed; A disposable anvil connected to the disposable cartridge body movably between a closed position and an open position when the disposable cartridge body is fixed within the elongated channel, wherein the bottom surface of the disposable anvil is at the top of the cartridge body Wherein the bottom surface of the disposable anvil is spaced from the top surface of the cartridge body at the open position so that tissue can be inserted between the disposable anvil and the cartridge body, Wherein the disposable cartridge body comprises spaced stiffener rails configured to engage and disengage from the movable upper anvil plate on the surgical cutting-fastening mechanism when the disposable cartridge body is in the long channel, The body is connected to the long channel The disposable anvil that remain with the fastening mechanism - when removing the disposable anvil top anvil plate can move the remains with the disposable cartridge body is cut for the operation; And at least one tissue stop on the disposable anvil for contacting tissue inserted between a bottom surface of the disposable anvil and a top surface of the cartridge body for orienting tissue relative to the staples supported in the cartridge body Disposable staple cartridge.

However, the conventional surgical staple apparatus has a disadvantage in that it can not accurately check whether the cancer cells remain in the resection margin after the tissue is resected.

The basic principle of cancer surgery is that cancer cells should not remain in the patient's body after surgery. If cancer cells remain in the tissues after the operation, the cancer cells are cut off by microscopic examination, but cancer cells remain in the tissues. R1, a case where the cancer cells are cleanly resected without any cancer, is referred to as R0 resection.

On the other hand, in the case of the R2 resection that can be confirmed by the naked eye during the operation, the cancer resection can be obtained by removing the cancer cell by resection of the tissue again. However, in the case of the R1 resection which can not be confirmed by the naked eye, Frozen section biopsy should be performed during the operation.

In this study, we used a stapled surgical stapling device to perform a freeze-cut histological examination of the abdomen, which was performed with a surgical stapling device. For the remaining tissue, ablation margin examination should be performed.

However, the surgical stapler with a single blade used to date does not allow accurate margin for removal. After removal of the staples from the excised tissue, a freezing margin is secured to perform a frozen section. However, The tissue is damaged and the accurate examination can not be performed, and it can not be said that the margin of ablation is correct.

Therefore, the conventional surgical staple apparatus is inferior in accuracy in frozen section examination, and it is difficult to confirm whether the presence of cancer cells in the uncontaminated area is confirmed after the procedure when the cancer is divided into the contaminated region and the uncontaminated region through cutting There was a problem of being limited.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a staple cartridge detachably mountable to a jaw that clamps a biotissue, Provided is a surgical staple device having a double blade capable of performing a rapid freezing section test to determine whether or not cancer cells or other abnormal cells are present with the collected biopsy tissue immediately after cutting and taking a part of the tissue immediately.

A surgical staple apparatus having a double blade according to the present invention is characterized in that a plurality of staples are built in a receiving portion formed in the lower jaw operated by a user operation in the left and right sides with respect to the center along the longitudinal direction of the front and rear, A staple cartridge for stapling a living tissue with a plurality of built-in staples upward as the user operates the staple cartridge, and a staple cartridge disposed parallel to each other at a rear end of the staple cartridge body, And a pair of cutters for cutting and collecting the living tissue located between the jaws.

The staple cartridge according to the present invention includes a cartridge body formed in a shape corresponding to a shape of an inner space of a receiving portion of the lower jaw, a cutter guide hole formed along the longitudinal direction in the center of the cartridge body, A plurality of staple-embedded holes formed in the left and right sides of the cartridge body along the longitudinal direction on the basis of a guide slot, the staple-embedded holes each having a built-in staple; And may include a press block that ascends and descends along the staple-embedded hole.

Further, the staple cartridge according to the present invention may include a tissue receiving groove formed along the cutter guide slot and receiving the biotissue cut by the pair of covers.

At this time, the pair of cutters according to the present invention may be formed by connecting the lower portions of the pair of cutters so that the cross-sectional shape of the pair of cutters is '└┘' or the cross-sectional shape thereof is '∪'.

Further, the surgical stapling apparatus according to the present invention includes an upper body formed by extending an upper handle from an upper jaw to a rear side, a lower body extending from a lower jaw to a guide slot rearwardly, and an upper jaw and an upper knob And a fastening portion formed between the lower jaw and the guide slot of the lower body to receive the fastening protrusion of the upper body and fasten the upper body and the lower body to each other, A lower knob hinged to a lower portion of the lower portion of the lower body to provide an elastic repulsive force with an elastic body provided at the front to bring the lower jaw of the lower body closer to the upper jaw of the upper body, The rear end is fixed to the moving guide block, and as the guide block moves forward, it advances forward A pair of wedge sled bars which push upwardly the pushing blocks received in the plurality of staple built-in holes to upwardly push the staples upward in the staple-containing holes, and a pair of wedge sled bars which are arranged between the pair of wedge sled bars, A push bar for pushing the cutter forward as the guide block moves forward, a pivot bar rotatably provided with a torsion spring in the fastening portion, and being pivoted rearward by a repulsive force of the torsion spring, A stopper for preventing advancement of the wedge sled bar and the push bar, and a slide knob connected to the guide block moving along the inside of the guide slot to manipulate the movement of the guide block.

Further, the surgical staple apparatus according to the present invention has a support handle formed downward from the front side of the body and held on the palm of the user, hinged on the front side of the support handle, A main body having an operation knob for operating the hinge by an operation of the fingers; and a control unit connected to the operation knob of the main body so as to be interlocked with the operation knob of the main body, A rotary head connected to the front of the main body so as to rotate forward and backward with the stroke bar being built therein and rotated 360 degrees around the stroke bar by a user's operation; An extension shaft coupled with the stroke bar embedded therein, and a rear end connected to the extension shaft Wherein one end of each of an upper jaw and a lower jaw is hingedly coupled to a pivot portion at a front end and a push bar penetrating from the rear of the pivot portion is operated by a user, And a stapling shaft for interlocking (advancing) the stroke bar so that any one of the upper jaw and the lower jaw rotates about the hinge axis to clamp the biotissue positioned between the upper jaw and the lower jaw.

A surgical staple apparatus having a double blade according to the present invention has the following effects.

First, a staple cartridge is detachably attached to a jaw for clamping biotissue, a pair of cutters are advanced along a staple cartridge to staple the biotissue, and a part of the biotissue is cut and immediately collected, It has the effect of performing the rapid freezing section test to determine the presence of cancer cells or other abnormal cells in the biopsy during surgery.

Second, the accurate margin of resection without tissue damage at the surgical site was obtained and the rapid freezing section was performed to confirm the accuracy of R0 resection (the case where it was cleanly resected without cancer cells), which is the principle of cancer surgery. .

1 is an exemplary view showing a configuration according to an embodiment of a surgical staple apparatus having a double blade according to the present invention.
2 is an exemplary view showing a state in which a through hole of a stopper according to an embodiment of the present invention is opened and a wedge sled bar and a push bar advance.
3 is an exemplary view showing a configuration according to another embodiment of a surgical staple apparatus having a double blade according to the present invention.
FIG. 4 is a view illustrating a configuration of a stroke bar in a main body and a rotary head of a surgical stapler according to another embodiment of the present invention. FIG.
5 is an exploded view showing the stapling shaft according to another embodiment of the present invention.
FIG. 6 is an exemplary view showing a rotating state of the upper jaws and the lower jaws of the surgical staple apparatus according to another embodiment of the present invention.
7 is an exemplary view showing a staple cartridge according to another embodiment of the present invention.
FIG. 8 is an exemplary view showing a state in which a pair of cutters provided in the staple cartridge according to the present invention is implemented. FIG.
FIG. 9 is a view showing an embodiment of a cutter provided in the staple cartridge according to the present invention.
FIG. 10 is an exemplary view showing the state of the receiving piece and the tissue-leaving piece provided in the staple cartridge according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a surgical stapling method for stapling a surgical site (surgical site) in a surgical operation, advancing a pair of cutters along a staple cartridge, cutting a stapling site, and collecting a biopsy sample The present invention relates to a surgical staple apparatus having a blade, and its construction will be described with reference to the drawings.

1 and 2, an upper body 10, a lower body 20, a lower knob 30, a lower knob 30, and a lower knob 30 are integrally formed, And a staple cartridge 500.

The upper jaw 11 is positioned at the front of the upper body 10 according to the present invention and the upper knob 12 is extended rearward from the upper jaw 11 to form the rear of the upper body 10. [

The upper jaw 11 is provided at its bottom surface with a bending groove (not shown) for bending the ends of each of the plurality of staples 1 in correspondence with the plurality of staples 1 mounted on the staple cartridge 500 Uniformly formed.

The lower jaw 21 is located at the front of the lower body 20 according to the present invention and the guide slot 22 extends rearward from the lower jaw 21 to form the rear of the lower body 20.

At this time, the lower jaw 21 of the lower body 20 is formed with a receiving portion 23 in which the staple cartridge 500 is accommodated. Inside the guide slot 22, A guide block 24 is provided.

A slide knob 25 is connected to the guide block 24 so that the user can manipulate the guide block 24 to move along the guide slot 22 using the slide knob 25.

A pair of wedge sled bars 26 and push bars 27 are fixed to the front end of the guide block 24 so that the pair of wedge sled bars 26 can be moved forward And are accommodated in a plurality of staple holes 502 formed at left and right sides of the cartridge body 501 of the staple cartridge 500 at regular intervals in the longitudinal direction, The pushing block 503 is pushed upward to push upward the staple 1 while raising the staple 1 in the staple containing hole 502. [

The push bar 27 is disposed between the pair of wedge sled bars 26 and advances the cutter forward as the guide block 24 moves forward.

A coupling protrusion 14 protrudes from the left and right sides of the upper jaw 11 and the upper knob 12 of the upper body 10 and a lower jaw 21 and a guide A coupling part 28 is formed between the slots 22 so that the coupling part 28 receives the coupling protrusions 14 of the upper body 10 so that the upper body 10 and the lower body 20, Respectively.

A stopper 40 is provided in the fastening part 28. The stopper 40 is provided inside the fastening part 28 so as to be rotatable with the torsion spring 41, The pair of wedge sled bars 26 and the push bars 27 are formed so that the pair of wedge sled bars 26 and the push bars 27 penetrate therethrough, And is provided inside the fastening portion 28.

The stopper 40 is rotated backward by the repulsive force of the torsion spring 41 so that the through hole is inclined so that one side of the through hole is provided as a protrusion so that the wedge sled bar 26 and the push bar 27 advance .

At this time, when the staple cartridge 500 is received in the receiving portion 23 of the lower jaw 21, the pushing piece 42 is protruded from the front end of the stopper 40, The state of the through hole is opened as the rear end of the staple cartridge 500 pushes the pushing piece 42 to the front end of the stopper 40 so that the wedge sled bar 26 and the push bar 27 It is possible to advance.

A lower knob 30 is hinged to a lower portion of the fastening portion 28 of the lower body 20 so as to provide a resilient repulsive force by an elastic body provided at the front and to secure the lower jaw 21 of the lower body 20 to the upper Close to the upper jaw (11) of the body (10) and clamped with the biotissue interposed therebetween.

A hook 29 is formed at the rear end of the guide slot 22 of the lower body 20 so that the lower jaw 21 is brought close to the upper jaw 11, And keeps the jaws 11 and 21 close to each other.

The staple cartridge 500 mounted on the surgical staple apparatus is provided with a cutter and a sample collection unit at the center of the staple cartridge 500 for disposing the staple cartridge 500 to cut the biotissue in the longitudinal direction at the time of stapling, Samples are taken.

The staple cartridge 500 according to the present invention can be used by attaching the cut and tissue samples to the lower jaw 21 selectively according to the collecting function. Referring to the staple cartridge 500 in detail, Respectively.

The cartridge body 501 is formed in a shape corresponding to the internal space shape of the receiving portion 23 of the lower jaw 21 as shown in Figures 7 to 9, A plurality of staple holes 502 in which the staples 1 are embedded are formed on the left and right sides with respect to the center of the cartridge body 501 along the longitudinal direction.

The cartridge body 501 is formed in a shape corresponding to the internal space shape of the receiving portion 23 of the lower jaw 21. The cutter guide slot 504 is formed at the center of the cartridge body 501 along the longitudinal direction. When stapling the biotissue at the rear of the cutter guide slot 504, the pusher bar 27 is pushed by the advancing push bar 27 to advance forward from the back along the cutter guide slot 504, And a single cutter 513 for cutting.

The cartridge body 501 is formed with a plurality of staple holes 502 in which a staple 1 of '└┘' type is embedded. The plurality of staple holes 502 are formed in the cartridge body 501, Are formed uniformly along the longitudinal direction on the left and right sides with respect to the cutter guide slot 504, respectively.

Inside the staple-containing holes 502, a pushing block 503 which holds the staples 1 and rises along the staple-containing holes 502 is incorporated.

At this time, when the wedge sled bar 26 comes close to the pressing block 503 through the lower portion, the pressing block 503 rises along the upper surface of the wedge sled bar 26 whose upper surface is formed in an oblique line, The staples 1 are sequentially introduced to the outside and the staples 1 are further pressed so that the ends of the staples 1 are positioned between the upper jaw 11 and the lower jaw 21 Passes through the biotissue, is bent by a bending groove (not shown) of the upper jaw 11, and staples the biotissue.

When the wedge sled bar 26 advances, the push bar 27 also advances together to advance the single cutter 513 forward along the cutter guide slot 504 of the cartridge body 501, The living tissue located between the upper jaw 11 and the lower jaw 21 is cut.

The staple cartridge 500 includes a cartridge body 501 formed in a shape corresponding to an internal space shape of the receiving portion 23 of the lower jaw 21, And a plurality of staple-embedded holes 502 in which a staple 1 of '└┘' type is embedded in the cartridge body 501 are provided on the left and right sides of the cartridge body 501 with respect to the center of the cartridge body 501 And is formed uniformly along the longitudinal direction.

Inside the staple-containing holes 502, a pressing block 503 that rises along the staple-containing hole 502 while holding the staple 1 is incorporated.

The cartridge body 501 includes a sample collecting portion that is disposed parallel to each other at a rear end of the cartridge body 501 of the staple cartridge 500 to advance forward along the cartridge body 501, And a pair of cutters 511 that cut the tissue and are cut by the pair of cutters 511 along the center longitudinal direction of the cartridge body 501 into which the pair of cutters 511 advance A tissue receiving groove 512 for receiving the living tissue is formed.

At this time, the cutters 511 are preferably arranged in pairs so as to be spaced apart from each other or parallel to each other so as to move along the left and right inner side surfaces of the tissue receiving grooves 512, and a pair of cutters 511 The lower portions of the pair of cutters 511 can be connected to each other for interlocking without any error.

The pair of cutters 511 may be formed by connecting the lower portions of the cutters 511 to each other so that the cross-sectional shape of the cutter 511 may be formed to be a "└┘" shape or a "∪" It is acceptable.

As shown in Fig. 10, a pair of cutters 511 extend forward to forward the biopsy tissue cut by the pair of cutters 511 to the receiving piece 514 for pushing into the tissue receiving groove 512 ).

The receiving piece 514 is preferably disposed between a pair of rear cutters 511 of the pair of cutters 511. When the pair of cutters 511 advance forward, The cutter 511 of FIG.

In addition, the tissue receiving groove 512 is provided with a tissue releasable piece 515 having an 'a' shape in which a front end is partially connected to the front end of the tissue receiving groove 512 and rotated about a partially connected point The user manipulates the one side exposed in the tissue receiving groove 512 to rotate the partially connected point upward to disengage the biotissue from the tissue receiving groove 512.

The surgical staple apparatus according to another embodiment of the present invention includes a main body 100, a rotating head 200, an extending shaft 300, a stapling shaft 400, and a staple cartridge 500 do.

3 to 6, the main body 100 is integrally formed with a support handle 110 downward from the front side of the body and is gripped by the palm of the user, and on the front side of the support handle 110, 120 are hinged together.

At this time, the manipulation handle 120 is formed with a grip hole 121 in which the user's fingers are located, and the user's fingers are positioned on the grip hole 121, and then the manipulation handle 120 is rotated, To rotate with the hinge as an axis.

The stroke bar 130 is connected to the operation handle 120 of the main body 100 so that the operation handle 120 is operated The stroke bar 130 horizontally moves forward or backward within the main body 100. [0051] As shown in FIG.

More specifically, the stroke bar 130 is connected to the operation handle 120 through a ratchet structure, and the stroke bar 130 is moved forward by the operation of the operation handle 120.

At this time, the rear end of the stroke bar 130 is connected to the pulling handle 131. As the pulling handle 131 is pulled backward by the user, the stroke bar 130 moves backward.

The pulling handle 131 is moved back and forth along the longitudinal direction of the main body 100 along the guide slots 101 formed along the lengthwise and backward directions on the left and right sides of the main body 100, And connects with the rear end of the stroke bar 130 through the guide slot 101.

Therefore, the stroke bar 130 according to the present invention moves backward from the inside of the main body 100 as the pulling handle 131 is pulled backward, and when the operation handle 120 is operated, 100).

A rotary head 200 is provided on the front side of the main body 100. The rotary head 200 includes the stroke bar 130 and the stroke bar 130 in front of the main body 100. [ 130 to rotate 360 degrees.

A plurality of gripping grooves 201 are formed at regular intervals along the outer circumferential surface of the rotary head 200 so that the user can operate the rotary head 200 by the user's hand using the gripping grooves 201, And rotates about the bar 130.

In addition, the rotary head 200 is provided with the adjustment knob 210 on one side thereof to adjust the rotation angle of the upper jaw 410 and the lower jaw 420 provided on the stapling shaft 400 to be described later have.

An extension shaft 300 is provided at a front end of the rotary head 200. The extension shaft 300 is a tubular body and the extension shaft 300 also includes the stroke bar 130, (200).

The length of the stroke bar 130 is preferably longer than the total length of the main body 100, the length of the rotary head 200, and the length of the extension shaft 300, When the stroke bar 130 is moved forward, a length of the front end of the extension shaft 300 emerging from the front end of the stroke bar 130 is increased, thereby providing a pressing force forward.

A stapling shaft 400 is coupled to a front end of the extension shaft 300 so that a pressing force generated as the stroke bar 130 advances and retracts in the extension shaft 300, Stapling, and cutting biopsy.

The stapling shaft 400 is provided with an upper jaw 410 and a lower jaw 420 at the front of the stapling shaft 400. The upper jaw the upper jaw 410 and the lower jaw 420 are hinged to each other at the front end of the pivot 430 so that either the upper jaw 410 or the lower jaw 420 is fixed The other jaws are rotated about their hinges so that the living tissue located between the upper jaws 410 and the lower jaws 420 is clamped (closed).

At this time, in the jaw rotating among the upper jaw 410 and the lower jaw 420, the accommodating portion 421 on which the staple cartridge 500 on which the plurality of staples 1 are mounted is formed, The jaws uniformly form the bending grooves 411 for bending the ends of the plurality of staples 1 in correspondence with the plurality of staples 1 mounted on the staple cartridge 500, respectively.

In the present invention, for convenience of explanation, a jaw having a uniformly formed bending groove 411 for bending each of a plurality of staples 1 is referred to as an upper jaw 410 that maintains a fixed state, and the staple cartridge 500 is mounted Will be referred to as a lower jaw 420 rotated about an axis of the hinge.

The push bar 440 penetrates the center of the pivot part 430 to which the upper jaw 410 and the lower jaw 420 are fixed and advances forward. The push bar 440 has a plurality of thin And a fastening portion 441 to be fastened to the front end of the stroke bar 130 is formed at a rear end thereof so as to be fastened to the front end of the stroke bar 130 through the fastening portion 441, The push bar 440 advances forward by taking the pressing force generated when the bar 130 moves forward.

At this time, a guide groove 412 for guiding the upper portion of the push bar 440 is formed at the center of the upper jaw 410, and a guide groove 412 for guiding the lower portion of the push bar 440 is formed at the center of the lower jaw 420 Thereby forming a guide slot 422.

The lower end of the push bar 440 is provided with a pivotal operation piece 442. The pivotal operation piece 442 is engaged with the lower end of the push bar 440 so as to be in contact with the outer surface of the lower jaw 420, When the push bar 440 advances forward, it is moved along a longitudinal surface of the lower jaw 420 to provide a turning force so that the lower jaw 420 rotates upward, So that the living tissue positioned between the upper jaw 410 and the lower jaw 420 can be clamped (closed).

The upper jaws 410 and the lower jaws 420 are kept spaced apart from each other by the hinges so that the pivoting operation pieces 442 are positioned at the rear of the lower jaws 420, The lower jaw 420 rotates about the hinge and maintains the closed state in the state of being close to the upper jaw 410. As a result,

The inner housing 450 is divided into an upper portion and a lower portion along the length of the push bar 440 rearward of the pivot portion 430. The inner housing 450 has the push bar 440 therein And the push bar 440 is horizontally moved inside the inner housing 450. As shown in FIG.

The rear end of the inner housing 450 is formed with a through hole 451 to communicate with the inside of the inner housing 450. The front end of the stroke bar 130 is inserted into the inner housing 450 through the through hole 451, The front end of the stroke bar 130 is fastened to the fastening portion 441 formed at the rear end of the push bar 440.

The adjustment bar 431 is connected to one side of the pivot portion 430 so that the upper jaw 410 and the lower jaw 420 pivot about the pivot portion 430 to the left and right.

At this time, the control bar 431 is extended to the rear end of the inner housing 450 along the side surface of the inner housing 450, and is connected to the adjustment handle 210 of the main body 100 And the upper jaws 410 and the lower jaws 420 whose angles are adjusted by the respective control bars 431 return to the original state by the elastic force of the push bars 440.

The tubular case 460 is provided behind the pivot 430 to protect the inner housing 450 and the control bar 431. When the tubular case 460 is coupled to the tubular case 460, A hinge protrusion constituting a pivot axis of the pivot portion 430 is formed on the rear and upper portions of the pivot portion 430 respectively and extension links are formed on the hinge protrusions, It is preferable to engage the tubular case 460 after being seated in the seating groove so as to form a pivot shaft.

The staple cartridge 500 mounted on the lower jaw receiving part 421 of the stapling shaft 400 includes a plurality of staples 1 along the lengthwise direction on the left and right sides with respect to the center The staple 1 staples the living tissues positioned in the upper jaw 410 and the lower jaw 420 with the staple 1 built therein.

At this time, the stapling function is performed by the wedge sled 443 provided at the front end of the push bar 440. The wedge sled 443 is formed in a shark fin shape with a sloped upper surface.

The staple cartridge 500 according to the above-described surgical staple apparatus is provided with a cutter and a sample collecting portion at the center of the staple cartridge 500 for disposing the staple cartridge 500. The staple cartridge 500 cuts the biotissue in the longitudinal direction at the time of stapling, Collecting.

The staple cartridge 500 according to the present invention can be used by attaching the cut and tissue samples to the lower jaw 420 selectively according to the collecting function. Respectively.

The cartridge body 501 is formed in a shape corresponding to the internal space shape of the receiving portion 421 of the lower jaw 420 as shown in FIGS. A plurality of staple holes 502 in which the staples 1 are embedded are formed on the left and right sides with respect to the center of the cartridge body 501 along the longitudinal direction.

The cartridge body 501 is formed in a shape corresponding to the internal space shape of the receiving portion 23 of the lower jaw 420. The cutter guide slot 504 is formed in the center of the cartridge body 501 along the longitudinal direction. When the living tissue is stapled at the rear of the cutter guide slot 504, the push bar 440 is pushed by the advancing push bar 440 to advance forward from the back along the cutter guide slot 504, And a single cutter 513 for cutting.

At this time, when the wedge sled 443 comes close to the pressing block 503 through the lower portion thereof, the pressing block 503 rises along the upper surface of the wedge sled 443 whose upper surface is formed by an oblique line, The staples 1 are sequentially exposed to the outside and the staples 1 are pressed so that the ends of the staples 1 are positioned between the upper jaws 410 and the lower jaws 420, And then bent by the folding grooves of the upper jaw 410 to staple the living tissue.

When the wedge sled 443 advances, the push bar 440 also advances together to advance the single cutter 513 forward along the cutter guide slot 504 of the cartridge body 501, The biotissue located between the upper jaw 410 and the lower jaw 420 is cut.

The staple cartridge 500 for collecting the living tissue is configured to have a cartridge body 501 formed in a shape corresponding to the internal space shape of the receiving portion 421 of the lower jaw 420, A plurality of staple built-in holes 502 in which a staple 1 of '└┘' type is embedded are formed on the left and right sides of the cartridge body 501 along the longitudinal direction.

The cartridge body 501 includes a sample collecting portion that is disposed parallel to each other at a rear end of the cartridge body 501 of the staple cartridge 500 to advance forward along the cartridge body 501, A pair of cutters 511 for cutting the tissue and a biotissue cut by the pair of cutters 511 along the center longitudinal direction of the cartridge body 501 into which the cutters 511 advance Thereby forming a tissue receiving groove 512 for receiving the tissue.

At this time, the pair of cutters 511 are preferably arranged in pairs so as to be spaced apart from each other or parallel to each other so as to move along the left and right inner side surfaces of the tissue receiving groove 512, and a pair of cutters 511 Can be connected to each other with the bottom of the pair of cutters 511 interlocked with each other without an error of time.

The pair of cutters 511 may be formed by connecting the lower portions of the cutters 511 to each other so that the cross-sectional shape of the cutter 511 is '└┘' or '∪'.

Therefore, the surgical staple apparatus having a double blade according to the present invention is configured such that the staple cartridge is detachably attached to the jaw for clamping the biotissue, the pair of cutters are advanced along the staple cartridge to selectively cut and collect tissue samples A staple cartridge suitable for the function is stapled to staple the living tissue, and at the same time, a part of the tissue and the cut can be immediately taken out, and a rapid freezing section test for discriminating the presence or absence of cancer cells or other abnormal cells can be performed during the operation It is possible to say that it is necessary to make it.

Further, the cartridge body (cutting function) having a single cutter and the cartridge body (tissue sample collecting) having a pair of cutters are different in color, so that the function of the staple cartridge is visually observed before the staple cartridge is mounted on the lower jaw It is possible to prevent errors due to the staple cartridge mounting so that the staple cartridge can be identified.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Accordingly, the technical scope of the present invention should be determined by the technical idea of the appended claims.

10: upper body 11: upper jaw
12: upper handle 14: engaging projection
20: Lower body 21: Lower jaw
22: guide slot 23: accommodating portion
24: guide block 25: slide knob
26: a pair of wedge sled bars 27: push bars
30: Lower handle 40: Stopper
41: Torsion spring 42:
100: main body 101: guide slot
110: support handle 120: operation handle
121: grip hole 130: stroke bar
131: pull handle 200: rotating head
201: holding groove 210: angle adjusting handle
300: Extension shaft 400: Stapling shaft
410: Upper jaw 411: Bending groove
412: guide groove 420: lower jaw
421: receiving portion 422: guide slot
430: pivot portion 431: angle adjustment bar
440: push bar 441: fastening part
442: rotation operation piece 443: wedge sled
450: inner housing 451: through hole
460: tubular case 500: staple cartridge
501: Cartridge body 502: Staple built-in ball
503: press block 511: a pair of cutters
512: tissue receiving groove 513: single cutter

Claims

A surgical staple device for stapling a surgical site after an upper jaw and a lower jaw are brought close to each other with a surgical site being interposed by a user's operation,
A large number of staples are built in the left and right sides of the receiving portion formed in the lower jaw operated by the user operation with respect to the center in the lengthwise and backward directions of the back and forth, A staple cartridge for stapling living tissue;
A double blade including a pair of cutters arranged parallel to each other at a rear end of the staple cartridge body so as to cut and collect the living tissue positioned between the upper jaw and the lower jaw while moving along the staple cartridge body, And a stapler.

The method according to claim 1,
The staple cartridge
A cartridge body formed in a shape corresponding to an internal space shape of the receiving portion of the lower jaw;
A cutter guide hole formed in the center of the cartridge body along the longitudinal direction of the front and rear sides;
A plurality of staple-embedded holes formed in the left and right sides of the cartridge body along the longitudinal direction with respect to the cutter guide slot and each having a built-in staple;
And a pressing block which is built in the staple-containing holes to support the staples and lifts and retreats along the staple-containing holes.

The method of claim 2,
The staple cartridge
And a tissue receiving groove formed along the cutter guide slot to receive the biotissue cut by the pair of covers.

The method according to claim 1,
And the lower ends of the pair of cutters are connected to each other so that the pair of cutters have a cross-sectional shape of '└┘'.

The method according to claim 1,
Wherein the pair of cutters are connected to each other by a lower portion of the pair of cutters to form a U shape.

The method according to claim 1,
The surgical staple apparatus
An upper body extending rearward from the upper jaw to the upper knob;
A lower body extending from the lower jaw to a rear side of the guide slot;
An engaging projection protruding from left and right sides between the upper jaw and the upper knob of the upper body;
A fastening portion formed between the lower jaw of the lower body and the guide slot to receive the fastening protrusion of the upper body and fasten the upper body and the lower body together;
A lower knob hinged to a lower portion of the lower portion of the lower body to provide a resilient repulsive force to an elastic body provided at a front side to bring the lower jaw of the lower body closer to the upper jaw of the upper body;
The rear end is fixed to a guide block moving along the inside of the guide slot, and the guide block advances forward as the guide block moves forward, pushing the press block received in the plurality of staple- A pair of wedged sled bars pushing upward while increasing staples;
A push bar disposed between the pair of wedge sled bars to advance the cutter forward as the guide block moves forward;
A stopper provided rotatably in a state where a torsion spring is provided in the fastening part and rotated backward by a repulsive force of the torsion spring to prevent the advance of the wedge sled bar and the push bar; And
And a slide knob connected to a guide block moving along the inside of the guide slot to manipulate the movement of the guide block.

The method of claim 6,
And a hook which is formed at a rear end of a guide slot of the lower body and is engaged with one side of the lower knob when the lower jaw is brought close to the upper jaw so as to maintain the state of proximity of the jaws, Staple device.

The method according to claim 1,
The surgical staple apparatus
A support handle formed to be downward from the front side of the body and held on the palm of the user, hinged to the front side of the support handle, the user's fingers being positioned, A main body having an operation handle to be operated;
A stroke bar embedded in the inside of the main body and connected to the operation handle of the main body to selectively move forward or backward as the operation handle is operated by a user;
A rotary head coupled to rotate in a forward direction of the main body with the stroke bar incorporated therein and rotated 360 degrees around the stroke bar by a user's operation;
An extension shaft coupled to a front end of the rotary head with the stroke bar incorporated therein; And
A rear end is coupled with the front end of the extension shaft, and one end of each of an upper jaw and a lower jaw is hinged to the pivot part at the front end, and a push bar penetrating from the rear of the pivot part is operated by a user A stapling shaft for clamping a biotissue positioned between the upper jaw and the lower jaw by rotating one jaw of the upper jaw or the lower jaw along an axis of the hitch, The staple staple device having a dual blade.