may decrease toward the second region 1210b.

As a specific example, as illustrated in the drawings, the first region 1210a may be formed to have a width that decreases toward the second region 1210b. As an example, the first region 1210a may have an inclined inner surface.

Furthermore, the sterilized container 1210 may have a shape that becomes narrower from the opening into which the battery pack 1220 is inserted toward the lower end in all inner regions thereof. That is, when the direction from the upper end of the sterilized container 1210, to which the cover part 1211 is coupled, to the lower end of the sterilized container 1210, which is the bottom surface of the accommodation part 1212, is defined as a forward direction that is the insertion direction of the battery pack 1220, the sterilized container 1210 may be formed in a shape that becomes narrower in the forward direction. For example, the sterilized container 1210 may have a funnel shape, a conical shape, a trapezoidal shape, or the like. The concept of the disclosure is not limited thereto, and sterilized containers with various shapes that facilitate the insertion of battery packs may be used.

In the surgical instrument 10 according to an embodiment, when the battery pack 1220 is inserted into the sterilized container 1210, the width of an entrance of the accommodation part 1212 of the sterilized container 1210 is greater than the width of the battery pack 1220, and thus, the insertion of the battery pack 1220 may be facilitated. Due to the structure of the sterilized container 1210 that becomes narrower in the forward direction, the battery pack 1220 may be guided and mounted along the inclined side surface S of the sterilized container 1210, and the central portion of the battery pack 1220 may be naturally aligned toward the center of the sterilized container 1210. (See FIG. 7B)

Meanwhile, hospitals maintain operating rooms in a sterilized state so as to prevent infection in surgical patients, and require thorough management for sterilization treatment and sterilization maintenance of surgical instruments and medical personnel who perform surgery. Accordingly, it is an important issue to maintain the sterilized state of surgical instruments in the medical instrument industry, in particular, the surgical instrument industry.

Therefore, with regard to the use of surgical instruments, it is important to prevent the sterilized container from becoming contaminated in the process of inserting an unsterilized battery pack into the sterilized container. As described above, the sterilized container according to an embodiment adopts the structure that facilitates the insertion of the battery pack, thereby reducing the possibility of contamination due to a user's mistake. That is, the battery pack may be easily inserted into the sterilized container such that the outer surface of the sterilized container is not contaminated by the unsterilized battery pack.

FIGS. 7A to 7B is a perspective view and a cross-sectional view illustrating another alternative embodiment of the driving unit 200 of the surgical instrument 10 of FIG. 1. FIGS. 8A to 8D are perspective views illustrating a process of inserting a battery pack 2220 into a sterilized container 2210 of FIGS. 7A to 7B and a locking structure 2213 of the sterilized container 2210.

Referring to FIGS. 7A and 7B and FIGS. 8A to 8D, the sterilized container 2210 according to an embodiment may further include the locking structure 2213.

Specifically, a structure that protrudes toward a cover part 2211 may be formed on the upper side of the sterilized container 2210, and the cover part 2211 may have a locking groove 2214 formed at a position corresponding to the locking structure 2213 such that the locking groove 2214 is engageable with the locking structure 2213. Here, the locking structure 2213 and the locking groove 2214 are coupled to each other to prevent the cover part 2211 from being opened.

Furthermore, the locking structure 2213 may be damaged when an external force greater than a preset certain level is applied thereto. Specifically, the locking structure 2213 may be damaged when an external force greater than the weight of the battery pack 2220 is applied thereto. In detail, when an external force is applied in a direction in which the cover part 2211 is closed, the locking structure 2213 may be easily deformed, but when an external force is applied in a direction in which the cover part 2211 is opened, the locking structure 2213 may be damaged. In other words, the locking structure 2213 has a built-in structure that is easily foldable in the insertion direction (forward direction) of the battery pack 2220. In the reverse direction in which the battery pack 2220 is removed, when the closed cover part 2211 is opened, a certain opening and closing structure may be damaged and the cover part 2211 of the sterilized container 2210 may not be closed, making it impossible to reuse the sterilized container 2210. As such, since the locking structure 2213 is formed in an irreversible opening and closing structure, the sterilized container 2210 may be formed as a non-reusable disposable consumable. However, the concept of the disclosure is not limited thereto, and a sterilized container with a limited number of uses such that the sterilized container is usable only a certain number of times may be provided.

In addition, one or more locking structures 2213 may be provided, and the locking structure 2213 is not necessarily limited to being formed at the position illustrated in FIGS. 7A to 7B.

Meanwhile, another embodiment is described in relation to a device for preventing the reuse of the sterilized container 210.

FIG. 9 is a cross-sectional view illustrating another alternative embodiment of the driving unit 200 of the surgical instrument 10 of FIG. 1. FIG. 10 is a cross-sectional view illustrating a process of coupling a cover part 3211 to a sterilized container 3210 of FIG. 9.

Referring to FIGS. 9 and 10, the sterilized container 3210 according to an embodiment may further include a coupling part 3215 that supports and fixes a battery pack 3220 inside an accommodation part 3212, and the battery pack 3220 may have a coupling groove 3221 formed at a position corresponding to the coupling part 3215.

The coupling part 3215 may be formed to protrude toward the inside of the accommodation part 3212. However, when the battery pack 3220 is inserted into the accommodation part 3212 of the sterilized container 3210, the coupling part 3215 of the sterilized container 3210 may be deformed to a certain extent due to elasticity. Accordingly, the battery pack 3220 may be easily inserted into the accommodation part 3212 without being caught in the coupling part 3215 when moving in the forward direction. Meanwhile, when the battery pack 3220 is sufficiently inserted into the accommodation part 3212 and the coupling part 3215 of the sterilized container 3210 is fitted into the coupling groove 3221 of the battery pack 3220, the battery pack 3220 is stably supported and fixed and is unmovable in the reverse direction.

In addition, the battery pack 3220 may have a structure in which the coupling groove 3221 is omitted. In this case, the coupling part 3215 is caught on the end portion of the battery pack 3220 in a state in which the battery pack 3220 is completely inserted into the sterilized container 3210, thereby supporting and fixing the battery pack 3220.

In addition, the coupling part 3215 may have a structure that is damaged when an external force greater than a preset condition, that is, a preset certain level, is applied thereto. Specifically, the coupling part 3215 may be damaged when an external force greater than the weight of the battery pack 3220 is applied thereto. In detail, the coupling part 3215 may be damaged when an external force is applied thereto in a direction opposite to the insertion direction of the battery pack 3220. In other words, a state in which the coupling part 3215 and the coupling groove 3221 are coupled to each other is a state in which the reverse movement of the battery pack 3220 is restricted. Unless there are special circumstances, an external force equivalent to the weight of the battery pack 3220 does not damage the coupling part 3215, but when an external force greater than the weight of the battery pack 3220 is applied to the coupling part 3215, the coupling part 3215 may be damaged and the battery pack 3220 may be withdrawn from the accommodation part 3212.

Since the sterilized container 3210 in which the coupling part 3215 is damaged does not stably support and fix the battery pack 3220, the sterilized container 3210 may no longer be used.

As such, since the coupling part 3215 is formed in an irreversible structure, the sterilized container 3210 may be formed as a non-reusable disposable consumable. However, the concept of the disclosure is not limited thereto, and a sterilized container with a limited number of uses such that the sterilized container is usable only a certain number of times may be provided.

Consequently, the reusable battery pack 220 is separated from the sterilized container 210 and recharged when surgery is completed, and the sterilized container 210 is separated and discarded separately.

Meanwhile, a method of inserting the unsterilized battery pack 220 into the sterilized container 210 includes a method using an automatic insertion-type charger and a direct coupling method. A charger for charging a battery pack will be described in detail later.

FIG. 11 is a perspective view illustrating a state in which the driving unit 200 is separated in the surgical instrument 20 according to an embodiment.

The surgical instrument 20 may include a manipulation part 1100, a driving unit 1200, an end tool connection part 1110, and an end tool 1300.

The end tool connection part 1110 is formed in the shape of a hollow shaft, and one or more wires and electric wires may be accommodated therein. The manipulation part 1100 is coupled to one end portion of the end tool connection part 1110, the end tool 1300 is coupled to the other end portion thereof, and the end tool connection part 1110 may serve to connect the manipulation part 1100 and the end tool 1300.

The end tool 1300 may be connected to one region (e.g., the end portion) of the surgical instrument 20 and inserted into a surgical site to perform motions necessary for surgery. In addition, in an example, the end tool 1300 may be connected to the manipulation part 1100. In a specific example, the end tool 1300 may be connected to the manipulation part 1100 through one or more connection parts 1110 and may be driven through the manipulation of the manipulation part 1100.

Although FIG. 11 illustrates that the end tool capable of performing a surgical stapler function is coupled, the disclosure is not limited thereto and various end tools may be coupled as the surgical instrument. A stapler end tool illustrated in FIG. 11 will be described in detail later.

Meanwhile, the driving unit 1200 of FIG. 5 is illustrated as the driving unit, but the disclosure is not limited thereto, and it is of course possible that the driving units of other embodiments described above may also be used.

Hereinafter, other features related to the sterilized container 1210 in the surgical instrument 20 according to an embodiment will be described in more detail.

The sterilized container 1210 may be made of a rigid polymer that maintains an opaque or transparent shape.

The sterilized container 1210 has an ID chip 1216 built inside or outside, and the manipulation part 1100 may include a recognition part that comes into contact with the ID chip 1216.

In an embodiment, when the manipulation part 1100 and the sterilized container 1210 are not completely physically coupled to each other through a certain physical contact structure provided between the manipulation part 1100 and the ID chip 1216 of the sterilized container 1210, the surgical instrument 20 prevents the manipulation part 1100 from coming into contact with the ID chip 1216, and thus, the system may not operate.

When the sterilized container 1210 is coupled to the manipulation part 1100, the ID chip 1216 comes into contact with the recognition part of the manipulation part 1100, and simultaneously, a preset system may operate. This means that system power On and status check begin at the same time as the insertion of the battery pack 1220 into the coupling region of the manipulation part 1100. For example, a product may be operated by the ID chip 1216 to provide a variety of information, such as product authentication, lot and serial number, and reuse or non-reuse.

In addition, the ID chip 1216 may transmit data to the manipulation part 1100 through passive radio frequency identification (RFID) technology that does not require power.

FIG. 12 is a perspective view illustrating a state of charging the battery pack 220 of the surgical instrument 10 according to an embodiment, and FIGS. 13A to 13C is a diagram illustrating a process of inserting a battery pack 2220 of FIG. 12 into a sterilized container 2210 as a specific embodiment of FIG. 12.

An automatic insertion-type charger (hereinafter referred to as a charger) 2400 may include a charging device 2420 including a charger terminal 2421 that charges a battery by coming into contact with the charging terminal of the battery pack 2220, and a support 2410 that protrudes out of the charging device 2420 by a certain region and supports and fixes the battery pack 2220. Here, the support 2410 may be a structure that removes the battery pack 2220 when a certain pressure is applied thereto.

Specifically, the battery pack 2220 may include a protrusion 2223 protruding toward the charging device 2420, and the support 2410 may be a structure that includes a latch member 2411 that is pressed by the protrusion 2223 and engaged with or disengaged from the protrusion 2223, and an elastic member 2412 that presses the latch member 2411 in an outward direction from the inside of the charging device 2420. In other words, when the latch member 2411 provided in the charging device 2400 is pressed by the protrusion 2223 and moved inward, the latch member 2411 may grip the protrusion 2223, and thus, the battery pack 2220 may be charged while being fixed to the charging device 2420. In addition, when the latch member 2411 is pressed once more and moved, the latch member 2411 may be moved outward by the elastic member 2412. Accordingly, the protrusion 2223 gripped by the latch member 2411 may be released and the battery pack 2220 may be separated from the charging device 2420.

To explain this from a different point of view, after the sterilized container 2210 is arranged such that the battery pack 2220 held and fixed to the charging device 2420 is inserted into the sterilized container 2210 in the forward direction, the sterilized container 2210 is moved such that the battery pack 2220 is completely inserted into the sterilized container 2210. The battery pack 2220 may be automatically removed from the support 2410 by applying a certain pressure to the sterilized container 2210 in the forward direction in a state in which the battery pack 2220 is inserted thereinto.

In addition to the automatic insertion method, the direct coupling method may be a method of inserting the battery pack 2220 into the sterilized container 2210 and closing the cover part 2211 while holding a handle (not shown) provided on the fully charged battery pack 2220. At this time, a person in an unsterilized region may carry the battery pack 2220 and insert the battery pack 2220 into the sterilized container 2210 held by a person in a sterilized region.

Hereinafter, a surgical instrument 30 according to another embodiment will be described.

FIG. 14 is a diagram illustrating a surgical instrument 30 according to another embodiment.

Referring to FIG. 14, a driving unit 4200 may be a battery pack itself for supplying power to a manipulation part 4100.

That is, the driving unit 4200 may be a disposable battery pack itself, unlike the battery pack 220 inserted into the sterilized container 210.

When the disposable battery pack is provided, the battery pack is directly inserted into a coupling region 4120 or a coupling groove 4121 of the manipulation part 4100 that has been sterilized before surgery.

Like the reusable battery pack 220, an ID chip is built in the outside of the disposable battery pack. Accordingly, upon insertion into the manipulation part 4100, product authentication and number of uses may be recognized.

In an embodiment, when the manipulation part 4100 and the driving unit 4200 are not completely physically coupled to each other through a certain physical contact structure provided between the manipulation part 4100 and the ID chip of the driving unit 4200, the surgical instrument 30 prevents the manipulation part 4100 from coming into contact with the ID chip, and thus, the system may not operate.

When the driving unit 4200 is coupled to the manipulation part 4100, the ID chip comes into contact with a recognition part of the manipulation part 4100, and simultaneously, a preset system may operate. This means that system power On and status check begin at the same time as the insertion of the driving unit 4220 into the coupling region 4120 of the manipulation part 4100. For example, a product may be operated by the ID chip to provide a variety of information, such as product authentication, lot and serial number, and reuse or non-reuse.

The ID chip may transmit data to the manipulation part 4100 through passive RFID technology that does not require power.

Hereinafter, the end tool of the surgical instrument according to an embodiment will be described in detail.

FIGS. 15 and 16 are perspective views illustrating the end tool of the surgical instrument of FIG. 11, and FIG. 17 is a side view illustrating the end tool of the surgical instrument of FIG. 11. FIG. 18 is an exploded perspective view of the end tool of the surgical instrument of FIG. 11.

The end tool 1300 is formed at the other end portion of the connection part 1110, and performs motions necessary for surgery by being inserted into a surgical site. As an example of the end tool 1300 described above, a pair of jaws 1303 for performing a grip motion may be used as illustrated in FIG. 11. However, the concept of the disclosure is not limited thereto, and various devices for performing surgery may be used as the end tool 1300. For example, a configuration of a cantilever cautery may also be used as the end tool 1300. The end tool 1300 is connected to the manipulation part 1100 by a power transmission part (not shown), and receives a driving force of the manipulation part 1100 through the power transmission part (not shown) to perform a motion necessary for surgery, such as gripping, cutting, suturing, or the like.

Here, the end tool 1300 of the surgical instrument 20 according to an embodiment is formed to be rotatable in one or more directions. For example, the end tool 1300 may be formed to perform a pitch motion around a Y-axis of FIG. 11 and simultaneously perform a yaw motion and an actuation motion around a Z-axis of FIG. 11.

The power transmission part (not shown) serves to connect the manipulation part 1100 to the end tool 1300 and transmit the driving force of the manipulation part 1100 to the end tool 1300, and may include a plurality of wires, pulleys, links, sections, gears, or the like.

In addition, the end tool 1300 may include a pulley 1311, a pulley 1312, a pulley 1313, a pulley 1314, a pulley 1315, and a pulley 1316 that are related to a rotational motion of a first jaw 1301. In addition, the end tool 1300 may include a pulley 1321, a pulley 1322, a pulley 1323, a pulley 1324, a pulley 1325, and a pulley 1326 that are related to a rotational motion of a second jaw 1302.

Although it is illustrated in the drawings that the facing pulleys are formed parallel to each other, the concept of the disclosure is not limited thereto, and the respective pulleys may be formed in various positions and sizes suitable for the configuration of the end tool.

In addition, the end tool 1300 of the first embodiment may include an end tool hub 1380 and a pitch hub 1307.

A rotation shaft 1341 and a rotation shaft 1342, which will be described later, may be inserted through the end tool hub 1380, and the end tool hub 1380 may internally accommodate at least some of the pulley 1311 and the pulley 1321 axially coupled to the rotation shaft 1341. Further, the end tool hub 1380 may internally accommodate at least some of the pulley 1312 and the pulley 1322 that are axially coupled to the rotation shaft 1342.

Meanwhile, a pulley 1331 serving as an end tool pitch pulley may be formed at one end portion of the end tool hub 1380. As illustrated in FIG. 15, the pulley 1331 may be integrally formed with the end tool hub 1380. That is, a pulley may be formed at one end portion of the end tool hub 1380 in the shape of a disk, and a groove around which a wire is wound may be formed on an outer circumferential surface of the pulley. Alternatively, the pulley 1331 may be formed as a separate member from the end tool hub 1380 and may be coupled to the end tool hub 1380. A wire 1403 and a wire 1404 are coupled to the pulley 1331 serving as an end tool pitch pulley, and the pulley 1331 rotates around a rotation shaft 1343 to perform a pitch motion.

The rotation shaft 1343 and a rotation shaft 1344, which will be described later, may be inserted through the pitch hub 1307, and the pitch hub 1307 may be axially coupled to the end tool hub 1380 (and the pulley 1331) by the rotation shaft 1343. Accordingly, the end tool hub 1380 and the pulley 1331 may be formed to be rotatable around the rotation shaft 1343 with respect to the pitch hub 1307.

The pulley 1311 and the pulley 1321, which are end tool jaw pulleys, are formed to face each other and are formed to be independently rotatable around the rotation shaft 1341, which is an end tool jaw pulley rotation shaft. At this time, the pulley 1311 and the pulley 1321 may be formed to be spaced apart from each other to a certain extent, and a staple assembly accommodation part may be formed therebetween. At least a portion of a staple pulley assembly 1360 and a staple link assembly 1370, which will be described later, may be disposed in the staple assembly accommodation part.

The first jaw 1301 is formed in the shape of an elongated bar as a whole, and a cartridge 1500 is accommodated in the first jaw 1301 at a distal end side. The pulley 1311 is coupled to a proximal end of the first jaw 1301, so that the first jaw 1301 is formed to be rotatable around the rotation shaft 1341. In other words, the first jaw 1301 may be formed entirely in the form of a hollow box, of which one surface (upper surface) is removed, such that the cartridge accommodation part capable of accommodating the cartridge 1500 may be formed inside the first jaw 1301. That is, the first jaw 1301 may be formed in an approximately “U” shape in cross section. The cartridge will be described in detail later.

Referring to FIGS. 15 to 18 and the like, the end tool 1300 may include a staple pulley 1361 and a staple auxiliary pulley 1362 related to a linear motion/rotational motion of the respective pulleys and links for stapling and cutting.

The staple pulley 1361 is formed to face the pulley 1311 and the pulley 1321, which are end tool jaw pulleys, and is formed to be independently rotatable around the rotation shaft 1341, which is an end tool jaw pulley rotation shaft. Here, it is illustrated in the drawings that the staple pulley 1361 is disposed between the pulley 1311 and the pulley 1321, but the concept of the disclosure is not limited thereto, and the staple pulley 1361 may be disposed at various positions adjacent to the pulley 1311 or the pulley 1321.

Here, the staple pulley 1361, the pulley 1311, and the pulley 1321 are formed to rotate around substantially the same shaft. As such, by forming the staple pulley 1361, the pulley 1311, and the pulley 1321 to rotate around the same shaft, it is possible to perform a pitch motion/yaw motion/actuation motion while also performing stapling and cutting motions. However, although the staple pulley 1361, the pulley 1311, and the pulley 1321 are illustrated in the drawings as being formed to rotate around one rotation shaft 1341, it is of course possible that each jaw pulley may be formed to be rotatable around a separate shaft that is concentric therewith.

Meanwhile, the end tool 1300 of the first embodiment may further include the staple link assembly 1370 connected to the staple pulley assembly 1360. The staple link assembly 1370 may include one or more link members 1371. The staple link assembly 1370 may serve to connect the staple pulley assembly 1360 to a reciprocating assembly 1550 of a cartridge 1500, which will be described later. In the present embodiment, it is assumed that the staple link assembly 1370 includes one link member 1371, and the link member 1371 includes a first link 1372 and a second link 1373.

When the staple pulley 1361 is rotated in the clockwise direction, the link member 1371 connected to the staple pulley 1361 may be moved toward the distal end of the first jaw 1301 as a whole. In contrast, when the staple pulley 1361 is rotated in the counterclockwise direction, the link member 1371 connected to the staple pulley 1361 may be moved toward the proximal end of the first jaw 1301 as a whole.

Thus, a bidirectional rotational motion of the staple pulley assembly 1360 causes a reciprocating linear motion of the reciprocating assembly 1550 of the cartridge 1500 through the staple link assembly 1370.

The cartridge 1500 of the surgical instrument 20 of FIG. 11 will be described in more detail below.

FIG. 19 is an exploded perspective view illustrating the cartridge of FIG. 15, FIG. 20 is a side cross-sectional view illustrating a stapling-related structure of the end tool of the surgical instrument of FIG. 11, and FIG. 21 is a perspective view illustrating a ratchet drive motion of the end tool of FIG. 20.

The cartridge 1500 is formed to be mountable to and dismountable from a first jaw