JPS5918058B2 - step pull cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a cartridge for a surgical instrument for stabilizing two separate parts of a hollow organ together in a closed pattern. The present invention relates to a staple cartridge of two-member construction for use in the manufacturing process.

In the prior art, several types of instruments are known for suturing hollow organs in the body in a circular manner by means of staple pulls.

US Pat. Nos. 3,638,652, 3,552,626, 3,388,487 and 3,193,165 all relate to this type of instrument, which is useful in surgical procedures performed on the colon and esophagus.

Although these devices are known in the art, they have not been practically introduced in the United States due to lack of variety.

For example, these devices disclosed in the above-mentioned patents have a major drawback in that the device's staple pull magazine must be manually filled with suture staples each time the device is used.

This means that after using the instrument, firing and bending the Stelapul, the instrument must be set aside and then the magazine must be manually refilled with Stelapul.

The refilling device is of course inoperative and cannot be used in an ongoing surgical procedure.

In the aforementioned U.S. Pat. No. 3,552,626, the stere pull magazine and the associated anvil of the instrument are interchangeable so that magazines of different sizes can be mounted on the same instrument body, but not to accommodate hollow body organs of different sizes. Discloses equipment that can only be used for that purpose.

The present invention provides a Stellapull cartridge for a Stellapull suturing surgical instrument of the above-mentioned type which overcomes the drawbacks and inconveniences experienced when trying to use similar instruments according to prior art ideas, especially the ideas contained in the above-mentioned patents. It is in.

The present invention overcomes the problems experienced in the prior art by means of an instrument designed to removably house a stair pull support member and a stair pull bending member so that these members can be manufactured as a disposable cartridge.

Therefore, continued use of the instrument during a surgical procedure is easily accomplished by removing the used cartridge and replacing it with a new cartridge.

It is also a feature of the invention that proper coupling and wedging of the disposable cartridge to the instrument body ensures proper orientation and proper indexing of all components.

Thus, when using the instrument, the staple pull is injected into the tissue of the hollow body organ and bent to form the desired suture line.

The stelae pull cartridge of the present invention includes an anvil support member, a stelae pull support member, a stelae pull ejection member attached to said stelae pull support member for driving the stelae pull, and a stelae pull ejection member attached to said stelae pull ejection member for cutting an end portion of said hollow organ. It is characterized by having an attached knife.

By changing the design of the cartridge, the size and arrangement pattern of the stere pulls can be easily changed.

According to the invention, the actuating member of the suturing surgical instrument includes only two
Only one member (not three or more) needs to be attached, which has the advantage of a simple construction and quick attachment and detachment to the actuating member.

Also, no tools are required to attach or detach the IJ joint from the actuating member of the surgical instrument.

For example, the above-mentioned U.S. Pat.
-12036), a tool such as a spanner must be used to attach and detach the knife.

According to the present invention, in order to make the cartridge disposable, the knife can be irremovably fixed to the stabilizing injection member.

Therefore, there is no need to form a thread for attaching and detaching the knife, making the structure simple and inexpensive to manufacture.In addition, since the knife is mounted within the stabilizer support member, the operator can use a sharp knife to prepare suturing surgical instruments. There is no need to handle it, so handling is not cumbersome and there is no risk of injury from the knife.

The invention will be explained with reference to the drawings.

A preferred embodiment of a device comprising a disposable stapler pull cartridge according to the present invention is shown in FIGS. 1 and 6.

As shown, the instrument includes a body or housing 10 having a through hole 11 formed therein and a rear handle portion 12 integrally provided therein.

A pivot connection handle part 14 is projected from the main body 10, and the handle part 14 is rotatably attached to the main body 10 by a pivot pin 16.

The handle part 12 is placed in the palm of the operator's hand, and the handle part 14 is grasped with the fingers of this hand.

When the fingers are squeezed toward the palm, the handle portion 14 is pressed against pin 1.
60 and moves in the direction of the handle portion 12.

A knob 20 is provided at the end of an ordinary safety bar 18 so that the knob 20 can be crimped onto the pivotable handle portion 14, and the safety bar 18 is rotatably attached to a pin 22 provided on the main body 10. It acts as a safety device to prevent the handle portion 14 from being accidentally operated.

This safety bar is conventional in operation and construction.

An outer tube 30 projects from the front end of the main body or housing 10 and is spaced a considerable distance from the end of the tube.

A disposable cartridge 40 is housed at the spaced end of tube 30 .

Attachment of the disposable cartridge 40 to the tube 30 is accomplished by means of a threaded connection sleeve 42 (the method of which is described below).

This disposable cartridge 40 has a stellar pull support member 4.
4 and an anvil support member 46 are provided.

A drive tube 50 and rod 52 are attached concentrically to tube 30.

The drive tube 50 is reciprocated in the tube 30 and acts as a pushing member for ejecting the stellar pull.

The rod 52 reciprocates independently of the drive tube 50 to position the anvil support member 46 with respect to the stabilizer pull support member 44.

The rod 52 projects sufficiently from the instrument, with one end of the rod 52 projecting from the front of the instrument to receive and support the anvil retaining member 46, and the other end extending from the rear of the instrument to pass through the wing nut 60.

The rear end of the rod 52 is threaded as shown on the right side of FIG.
Screw it on to 0.

As shown in FIG. 3, the inner diameter of the tube 500 is slightly expanded at the end remote from the main body to reduce the contact between the rod 52 and the drive tube 50 so that there is no operational loss over the effective area.

An end cap 62 is attached to the rear of the instrument to close the through hole 11 as shown in FIG.

Cap 62 causes stepped bushing 304 to abut shoulder 306 of through hole 11 .

The smallest hole in the bushing 304 supports the reduced diameter section 106 of the condo 520, with a sloped shoulder 130 at the end of the hole.
will be established.

A hole 64 is provided in the cap 62 to accommodate a suitable spanner wrench and to allow the cap 62 to be attached to a suitable threaded end of the through hole 11 at the rear of the instrument.

An external thread is provided on the flange portion of the cap 62 so that it can be screwed together with a thread formed at the end of the through hole 11.

6, 7 and 8, the main body or housing 10
The inside of is explained in detail.

As described above, the cap 62 is provided with an external thread that threadably engages a suitably formed internal thread at the end of the through hole 11.

This threaded nB portion is indicated by the reference numeral 66. An external tube 30 is accommodated at the end of the through-hole 11 near the attachment point of the disposable cartridge, and the tube 30 is inserted into the through-hole 11 and reaches the entrance of the enlarged region of the hole 11.

The body 10 and the tube 30 are rigidly interconnected at the bore 11 and are configured such that there is no relative movement between them.

A drive tube 50 extends coaxially to the tube 30 and
The end of the drive tube is inserted into the enlarged region 10 through the enlarged region 10, and the end of the drive tube is connected to the somewhat thick sleeve 72 by means of a screw γ4.

This sleeve 72 is connected to an end cap 78 by screws 76.

An inclined upper shoulder 81 is formed on the inner surface of this end kop 78.

The drive tube 50 and the threaded mating sleeve 72 and cap 78 all move together.

A roller 80 is housed on both sides of a short sleeve 720 that is slightly thicker than the drive tube 50, and this roller 80 is attached to a short shaft 88.
This short shaft 88 is press-fitted into a recess formed in the similar sleeve 72.

Rollers 80 are provided on diametrically opposed side walls of the sleeve 72 to act as a means for reciprocating the drive tube 50 within the instrument.

Furthermore, a suitably internally threaded hole 8 is provided on the underside of the similar sleeve 72.
3 is provided, and the protrusion 82 is screwed into this hole 83.

A stub or protrusion 82 is projected downwardly, as shown in FIG. 6, into the plane of a slot 84 formed in the body 10.

The purpose of the stubs 82 is to maintain proper directivity of the drive tube 50 as the drive tube 50 reciprocates back and forth.

The stub 82 cooperating with the slot 84 thus prevents rotation of the drive tube 50 during reciprocating movement thereof.

The configuration of the reciprocating motion of the drive tube 50 is clearly shown in FIGS. 6 and 7.

As described above, a roller 80 is supported on the diametrically opposite side surface of the similar sleeve 72, and the roller 80 is freely rotatably mounted on a short shaft 88, and the short shaft 88 is attached to the similar sleeve 72 as clearly shown in FIG. 72.

A forked member 90 is provided at the lower end of the bundle portion 14, the leg of this forked member being designated by reference numeral 92.

These legs 92 are formed as forks 94 which engage the rollers 80.

This bifurcated member 90 is provided with an upright central protrusion 96, which is fitted into a slot 97 formed in the lower part of the bundle portion 14.

The bifurcated member 90 is held in the nozzle portion 14 by a pin 98 passing through a hole formed in the protrusion 96.

As shown in FIG. 6, the bundle portion 14 rotates about the pin 16, causing the drive tube 50 to reciprocate in the tube 30 by means of a fork 94 cooperating with the rollers 80.

A spring 56 housed around tube 500 in region 70 crimp sleeve 72 against the reciprocating motion caused by bundle portion 14 .

The left end of spring 56 is held at the end of tube 30.

The entire rod 52 is passed through the tube 30 and body 10 of the instrument.

As can be seen in FIG. 8, the rod is provided with an angled shoulder 100 which connects the main portion of the rod 52 to a reduced diameter section 102 which is also provided with an angled shoulder 104. , further forming a reduced diameter section 106.

The diameter of the rightmost end of the rod is further reduced and the entire length of this reduced diameter section 108 is threaded.

A sleeve extension 11 is attached to the screw nut 60 visible at the rear of the instrument.
Set 0.

A reduced diameter portion 112 interconnects the sleeve 110 and the boss of the nut 60 and defines a groove in which a retaining ring 124 is received to attach the wing nut 60 and sleeve extension 110 to the camp 62. Configure it so that it can be installed.

The rod 52 is attached to the sleeve extension 110 and the nut 60.
A through hole is formed.

The hole in the sleeve extension 110 is threaded and the condo 5
20 so that it can be threadedly engaged with a thread formed in the reduced diameter section 108.

With the configuration as described above, when the camp 62 is screwed onto the main body 10 with the screw nut 60 held on the cap 62 by the retaining ring 124, the wing nut 60 is fixed to the end camp 62 as described above. Therefore, even when the butterfly nut rotates, there is no translational movement.

Sleeve extension 110 thus acts as a nut for the threaded portion of rod 108, allowing rod 52 to reciprocate.

Beveled shoulder 104 acts as a stop that acts on beveled shoulder 130 formed on bushing 304 .

FIG. 8 shows the rod 52 moved to the rightmost position by the sleeve extension 110, with the inclined shoulder 10
4 and the inclined shoulder 130 are in contact with each other.

This means that the anvil support member 46 is closest to the staple support member of the disposable staple cartridge.

This closest position is shown in FIG. 1, and the spacing between these two members is equal to the minimum spacing necessary to accommodate the tissue of whatever hollow body organ is to be sutured with the instrument of the invention. You can choose to do so.

Referring now to Figures i9, 10 and 11, the stapler pull support member 44 of the disposable stapler pull cartridge will now be described in detail.

This member 44 is an assembly composed of a semi-elliptical main body 140, and the right end of the main body 140 is connected to a small diameter neck 1.
41, and an external thread 142 is provided on the neck.

These external threads 142 cooperate with an internally threaded connecting sleeve 42 which is connected to the shoulder 14 of the tube 30.
6 to the tube end.

A protrusion 152 formed on the main body 140 for determining the direction.
A guide member 148, provided with a cooperating slot 150, is attached to the body portion 140 by adhesive or the like (this attachment is indicated by the reference numeral 154).

) The guide member 148 forms a guide surface 156 which defines two spaced apart concentrically spaced stellar pull receiving slots 158.

A stela pull injection member 160 is accommodated in the guide member 148 and the main body part 140, and this injection member is fitted concentrically to the main body part 140. so that it can touch the edge of the

Two ring-shaped fingers 162 spaced apart from each other are formed at the front end of the steal pull injection member 160, and each of these fingers is received in the stir pull receiving slot 158.

Next, when driving the stem pull injection member 160 by the drive tube 50, the finger portion 162 further enters the steer pull receiving slot 158, and injects the stem pull accommodated in the slot 158 outward in the axial direction.

The stabilizer injection member 160 is reinforced with a plurality of ribs 164, at least two of which are provided with suitable plastic protrusions or bosses 166.

An apertured cap-shaped knife 168 having a rim forming a knife edge 170 is attached to the staple pull injection member 160 by a hole 173 through which the boss 166 passes.

In installation, the knife 168 is inserted into the Stella pull injection member 16.
The boss 166 is "hot baked" to tighten at zero, and the knife 168 is configured to be advanced by the advancement of the steal pull injection member 160.

The two-stage head key 180 is press-fitted into the opening or slot formed in the outer tube 30 .

The outer head 182 of the key is slightly enlarged and cooperates with a slot formed in the small neck of the body 140 to maintain a predetermined orientation of the body 140 and associated guide member 148 with respect to the two-headed key 180.

The drive tube 50 is provided with an enlarged groove, the key 180 is passed through the enlarged groove with play, and the rod 52 is provided with an interference fit slot 184, and the other end of the key 180 is accommodated in the interference fit groove. .

Detents 192 are shown in FIG. 13 formed on the outer periphery of the steer pull ejection member 160 with the guide member 148 forming two mutually relative detents 190, 192, respectively, during initial assembly. Assemble it so that it is on the right side of the detent 190.

The purpose of these mutually opposed detents is to prevent the outward movement of the stela pull injection member 160 and associated knife 168, i.e., outwardly from the surface 156, and to prevent accidental ejection of the stera pull prior to assembly into the tube 30. Prevents accidental protrusion of knife.

When the stela pull support member of the disposable cartridge is assembled to the end of the outer tube 30 by interlocking the sleeve 42 and the small neck of the sleeve and body portion 140, the stela pull ejection member 160 engages the free end of the drive tube 50, and the stela pull The main body 140 is retracted until the injection member 160 slightly protrudes outward from the main body 140 .

As a result, the positional relationship of the detents 190 and 192 is reversed from the state shown in FIG. 13 to the state shown in FIG. 10.

At this time, the stabilizer pull support member 44 becomes usable.

A key 200 is provided at the free end of the rod 52 to allow indexing of the anvil support member 460 relative to the rod 52.

Furthermore, a female threaded hole 202 is provided at the free end of the rod 52 to allow an anvil support member 46 to be removably attached thereto.

An anvil support member 46 is shown in FIGS. 16-22 and includes a cup-shaped plastic body 210 having a central boss 212 with a hole 214 formed therein.

A stud 216 is received in the bore 214 and includes a knob 48 at one end of the stud 216 and a thread 220 at the other end, forming a reduced diameter section 222 therebetween.

Align the threaded portion 220 with the internal threads of the hole in the end of the rod 52.

The clip 224 formed by the main body 210 is inserted into the hole 214.
and engages a shoulder formed by reduced diameter section 222 to retain stud 216 within bore 214 but allow free rotation.

A notch 226 is provided in the body portion 210 near the hole 214 to receive and hang the key 200 at the end of the rod 52.

The holes 49 allow ventilation of the anvil support member 46.

The main body 2 includes a metal anvil having two concentrically arranged stellar pull bending grooves 232 spaced apart from each other and a center hole 233.
Attach to 10 by "heat baking".

A plurality of ribs 234 are formed on the main body portion 210, and at least two of the ribs are provided with protrusions or bosses 236.

An alignment hole 238 is formed in the anvil 230, and the installation is done through the rear boss 23.
6 is melted to form a rivet 240 to lock the anvil 230 (see FIG. 22), an extruded lip piece 242 is further provided on the anvil 230 to fix an annular cutting block 244,
This cutting block cooperates with knife 168.

The cutting block 244 is made of rubber or soft plastic.
etc.

Additionally, the anvil 230 is formed with a notch or keyway 231 as an overhang for the hole 233 that cooperates with the key 200 to ensure proper orientation and also to provide a cutout or keyway 231 as an overhang for the hole 233 in cooperation with the key 200 and to ensure proper orientation.
8 to ensure proper indexing of the groove 232 of the anvil 230.

A ventilation hole 47 is provided in the anvil 230, and the ventilation hole 47 is communicated with the ventilation hole 49 of the main body portion 2100.

In use, wing nut 60 is rotated to cause rod 52 to protrude from the end of tube 30.

The staple support member 44 of the disposable cartridge 40 is inserted into the rod 52 and the tube 30 and attached to the tube 30 by the sleeve 42.

The configuration of these members is such that the key 180 engages the neck of the stabilizer pull support member before the threads engage and the member 44 is retracted into the tube 30 to reach the closed position.

During the last revolution of the sleeve 42, the end of the drive tube 50 engages the stellar pull injection member 160 and the detent 190°1
The position of 92 is reversed from the state shown in FIG. 13 to the state shown in FIG.

The anvil support member 46 is then assembled onto the protruding end of the rod 52.

Grasp the knob 48 at this end and introduce the threaded sharp end of the stud 216 into the internally threaded hole in the end of the rod 52.

At this time, before the screws engage each other, insert the key 200 into the anvil 230.
The threaded end of the stud 216 seats in the internally threaded hole in the end of the rod 52 by rotating the knob 48.

Keys 180 and 200 allow slot 158 and slot 232
can be properly aligned.

Next, rotate the wing nut 60 so that the rod 52 retreats,
In this way, the anvil support member is attached to the stellar pull support member 44.
be close to.

In this state, the instrument is inserted into the hollow internal organ of the patient to be sutured.

The patient is then prepared in such a way that a cut is made on the hollow organ to be sutured and there are two cut edges to be joined together by the instrument according to the invention.

The instrument is inserted into the hollow organ and protrudes from one of the cut edges.

Wing nut 60 is rotated to project rod 52, thereby creating a large gap between anvil support member 46 and stele pull support member.

Next, the cut end of the hollow organ into which the instrument was inserted is attached to the drawstring (d
The cut end is delivered to the stabilizer pull support member 44 so that the rawstring) is in a tightened state and tightly attached around the rod 520.

The other cut end of the hollow organ is delivered to the anvil support member 46 and fitted tightly around the rod so that the drawstring is in a taut condition.

In this way, the two cut edges of the hollow organ are connected to the anvil member 4.
6 and the stabilizer pull support member 44.

At this time, the wing nut 60 is rotated to retract the rod 52, and at this time the anvil support member 46 is brought into the vicinity of the stellar pull support member 44.

Wing nut 60 is rotated until sufficient back pressure is felt, which back pressure is created by tightening the tissue sandwiched between sterile pull support member 44 and anvil support member 46.

At this time, the rod 52 assumes the position shown by the solid line in FIG. As shown, the stop 104 is connected to the stop 13.
The position is shifted to the left in the axial direction from 0.

When the instrument is in the above-described condition, i.e. when the cut end of the hollow organ to be sutured has been passed around the two disposable members of the cartridge, the safety bar 18 is inserted into the bundle portion 14 as shown in phantom in FIG. The user releases the safety bar 18 by rotating the handle toward the bundle portion 12, places the bundle portion 12 in the palm of the hand, and grasps the bundle by wrapping the fingers around the bundle portion 140.

When the fingers are drawn toward the palm, as if forming a fist, the bundle portion 14 rotates about the pivot pin 16 in a clockwise direction toward the handle portion 12, as shown in FIG.

As a result, the roller 80 is
Then, the sleeve 72 is advanced to the left in the axial direction as shown by the arrow in FIG.

This action drives the drive tube 50 screwed into the sleeve 72 to the left, as shown in FIG. 6, against the bias of the spring 56.

Movement of the drive tube 50 causes movement of the stellar pull injection member.

That is, the neck portion 161 of this Stella pull injection member is connected to the drive tube 50.
This is because it touches the edge of the

The movement of the stela pull injection member 160 causes the fingers 162 to pass through the corresponding slots 158, and the stela pull 159 accommodated in the slots is injected.

The action of the fingers 1620 on the stellar pull 159 is shown in FIG.

A V-shaped groove 163 is provided on the entire front surface of the finger portion 162, and this V-shaped groove 163
The U-shaped stellar pull 1590 intersection portion is accommodated in the groove.

This will ensure good contact between the fingers and the Stella pull during injection.

In FIG. 21, the effects that occur during injection of the stellar pull 159 are shown.

That is, as the stelae pull 159 advances or emerges from the slot 158, it contacts the groove 232 of the anvil 230 and bends into a B-shape as shown in FIG.

At the same time as the stela pull ejection member 160 is advanced, the knife 168 supported by the stela pull ejection member 160 advances axially toward the anvil support member such that the knife edge 170 of the knife 168 is inserted between the bound hollow organs. 22.

The tissue 3 is cut by the cutting edge 170 of the circular knife 168.
00,302 to reach the annular cutting block 244, which is held on the anvil 230 by the extrusion 242 as described above.

Movement of the drive tube continues until stop 81 engages stop 100 on rod 52, the position of which changes depending on the tissue thickness.

However, regardless of the changing position of the stop 100, the drive tube 50
moves the distance required to bend the Stella pull into the same shape.

There is, of course, a maximum limit to the tissue thickness that can accommodate a particular staple length.

In FIG. 22, two concentric arrays of stere pulls 159 are shown in phantom lines, and these stere pulls connect the ends of the hollow organs to be joined.

A vent hole 47 in the anvil 230 and a vent hole 49 formed in the body portion 210 vent any gas, fluid, or excess tissue that may accumulate in the instrument during suturing operations.

The cut ends 300, 302 of the hollow organ are held in the cavity created between the anvil support member and the stabilizer pull support member.

The next step is to rotate the wing nut 60 to slightly increase the spacing between the anvil support member and the stellar pull support member;
The sutured portion of the hollow organ is removed from between the two parts of the instrument and the instrument is withdrawn through the anvil support member 46.

To this end, the external shape of the anvil support member 46 is dish-shaped to facilitate removal of the suture device between the members 46, 44 and to facilitate passage of the sutured portion into the member 46.

This removal is achieved by the circumference of the anvil support member 46 shown in axial cross-section in FIG. 16 being the circumference of the inner stere pull ring shown in FIG. This can be easily done when it is equal to or smaller than .

The above description merely describes preferred embodiments of the present invention, and it goes without saying that various changes can be made within the scope of the claims.

For example, the anvil support member 46 and the stellar pull support member 44
The installation is shown as a screw connection.

However, it is important that this installation be easy to perform in the operating room and in difficult or extreme situations.

Therefore, members 44, 46, external pipe 30 and condo 52
Known techniques can be applied to the connections between them that allow for quick attachment and detachment.

For example, a bayonet type connection may be used.

[Brief explanation of drawings]

FIG. 1 is a side view of a surgical stapler pull suturing instrument using a preferred embodiment of the disposable staple pull cartridge of the present invention;
FIG. 2 is an end view of the disposable cartridge shown in FIG. 1;
3 is a sectional view taken along the line 3-3 in FIG. 1, FIG. 4 is a sectional view taken along the line 4-4 in FIG. 1, and FIG. FIG. 6 is a partial sectional view of the main body of the suturing surgical instrument using the preferred embodiment of the staple pull cartridge of the present invention, and FIG. 7 is a sectional view taken along line 7, FIG. 8 is a partial sectional view of the main body of the device showing the stop structure in detail, FIG. 9 is a partially sectional plan view of the staple pull support member of the disposable cartridge showing the key structure, and FIG. 10 11 is a longitudinal sectional view of the stabilizer pull support member of the disposable cartridge, FIG. 11 is a sectional view taken along line 1111 in FIG.
FIG. 12 is a front end view of the stela pull support member of the disposable cartridge showing the pushing member and knife;
FIG. 13 is a detailed view of the safety detent arrangement; FIG. 14 is a front end view of the pusher pull and stem guide; FIG. 15 is a side view of the stele pull and pusher; and FIG. 16 is a disposable cartridge anvil. FIG. 16a is a partially sectional side view of the member; FIG. 16a is a top view, partially in section, taken along the line 16a-16a; FIG. 17 is a front view of the anvil support member with the anvil removed; FIG. The figure is a side view of the anvil, Figure 19 is a front view of the anvil, Figure 20 is a partial sectional view of the anvil, Figure 21 is a partial plan view of the anvil showing the state in which the stela pull is bent, and Figure 22 is a partial plan view of the anvil. FIG. 3 is a partial cross-sectional view of the anvil member of the disposable cartridge showing the suture line and the knife cutting the tissue. 10...Housing, 11...Through hole, 12゜14...Handle part, 16...
・Pivot pin, 18...Safety bar, 20...
...Knob, 22...Pin, 30...External tube, 40...Cartridge, 42...
・Sleeve, 44... Stella pull support member, 4
6... Anvil support member, 47, 49...
Ventilation hole, 48...knob, 50...drive tube, 52...lot, 56...spring,
60... Wing nut, 62, 78... End cap, 72... Sleeve, 80...
...Roller, 88...Short axis, 90...
- Bifurcated member, 140... Body part of the Stellar pull support member, 148... Guide member, 156...
... Guide surface, 158 ... Stellar pull accommodation groove, 159 ... Stellar pull, 160 ...
Stella pull injection member, 162...Finger portion, 168
... Knife, 170 ... Knife edge,
180...key, 210...main body of anvil support member, 216...stud, 230...
...Anvil, 232 ...Bending groove, 23
3... Center hole, 244... Cutting block.

Claims (1)

[Scope of Claims] 1. An instrument body having an external tube 30, a rod 52 adjustably mounted within the external tube, and a rod 52 adjustably mounted within the external tube for stabilizing two separate parts of a hollow organ in a closed pattern. A stem cartridge cartridge for use in a suturing surgical instrument comprising a hollow drive tube 50 that accommodates a rod and is movably inserted into an external tube, comprising: a dish-shaped main body part 210; An anvil 2 formed by arranging grooves in an annular shape to bend the
30, and an anvil support member 46 consisting of a means for detachably attaching the dish-shaped main body to the rod 52; arranged in an annular manner and formed with a stela pull receiving groove;
``A main body part 140 having a guide member and detachably attachable to the outer tube 30, which is detachably held in the main body part by a detent means and comes into contact with the drive tube 50 when the main body part is attached to the outer tube 30. a stelaple ejection member 160 for ejecting the stelapule from the stelapule receiving slot in response to actuation of the drive tube 50, and a knife 168 fixed to the stelapule ejection member for cutting the hollow organ when the stelapule is sutured. A support member 44;
The two-part disposable staple cartridge as described above.