An electric stapler capable of recognizing at least four cartridge assemblies

Abstract

The application discloses an electric anastomat capable of identifying at least four kinds of nail magazine assemblies, which comprises a nail magazine assembly and a body, wherein the nail magazine assembly comprises a sub-variety identification protrusion; the body comprises a control chip, and the output end of a motor is connected with a firing connecting rod; a plurality of travel switches are arranged at the bottom or the side of the firing connecting rod, and a notch is formed in the firing connecting rod; a photoelectric sensor set is composed of a transmitting end and a receiving end; a sensing plate is slidingly arranged in the interval between the transmitting end and the receiving end, the front end of the sensing plate is fixedly connected with a pushing connecting rod, and the front end of the pushing connecting rod is used for abutting against the end face of an inner core connecting rod; an auxiliary identification connecting rod is slidingly arranged in the body, an auxiliary identification switch is arranged at the end of the auxiliary identification connecting rod close to the motor, and the other end of the auxiliary identification connecting rod is used for abutting against the sub-variety identification protrusion of the connecting rod. The electric anastomat capable of identifying at least four kinds of nail magazine assemblies has a relatively simple structure and reliable performance.

Description

TECHNICAL FIELD

[0001] The present application relates to an anastomat, in particular to an electric anastomat capable of identifying at least four kinds of cartridge assemblies. BACKGROUND

[0002] An anastomat is a device used in medical field to replace manual suturing, which mainly works by using titanium nails to cut or anastomose tissues, similar to a stapler. Compared with traditional manual suturing, the use of an anastomat has the following advantages: 1. simple and convenient operation, saving operation time; 2. tight and moderate suture using titanium nails or stainless steel nails (skin stapler); 3. smaller wound, thus smaller side effects for patients, and more conducive to avoiding complications.

[0003] An anastomat includes a cartridge assembly for providing titanium nails and a body for medical staff to operate. In order to reduce the use cost of the anastomat, the anastomos present on the market have detachable connection between the cartridge and the body, and medical staff can assemble different specifications of cartridge assemblies with the body according to needs.

[0004] The existing market design, the body is provided with a plurality of identification switches and travel switches, the number of identification switches and travel switches corresponds to the working process of the electric anastomat: different specifications of the nail cartridge assembly and the body are connected to trigger the corresponding identification switch, the identification switch gives the signal of the rotating motor and the travel switch that should work, the rotating motor drives the firing rod to slide to the rear end of the firing rod and the corresponding travel switch. However, in the existing electric anastomat, the identification switch is usually in the space between the operating handle and the rotating shaft sleeve. This design has the following problems: During the use of the anastomat, the medical staff needs to use the index finger to move the rotating shaft sleeve to adjust the angle of the nail cartridge assembly, so that the nail cartridge assembly is adapted to wounds of different angles, so the distance between the operating handle and the rotating shaft sleeve is the length of the index finger, that is, the distance between the operating handle and the rotating shaft sleeve is relatively short, in other words, the space between the operating handle and the rotating shaft sleeve is relatively limited. The existing identification switch is basically arranged in the space between the operating handle and the rotating shaft sleeve. This space can usually only accommodate three identification switches, and in actual use, the style of the nail cartridge assembly may be more than three, so how to identify the style of the nail cartridge assembly is particularly important. For example: the nail cartridge assembly is divided into 30mm, 45mm and 60mm three specifications according to the working stroke of the cutting knife, which respectively represent the working stroke of the cutting knife in this specification as 30mm, 45mm and 60mm; and each specification of the nail cartridge assembly has two sub-styles according to the different widths of the titanium nails, so as to be suitable for human tissues of different thicknesses, so that the style of the nail cartridge assembly can reach six at most. However, the small space between the operating handle and the rotating shaft sleeve cannot accommodate six identification switches, so the existing design is difficult to identify all six specifications of the nail cartridge assembly, and without identification, the rotation parameters of the motor cannot be controlled, and the firing rod cannot be driven to slide to the specified position.

[0005] There are also structures on the market that use electronic technology to realize the identification of different styles of nail cartridge assemblies of the electric anastomat. However, the above structure is relatively complex, and since the electronic components are prone to damage, the use of a large number of electronic components makes the anastomat as a whole unreliable. SUMMARY

[0006] The purpose of the present application is to provide an electric anastomat which is relatively simple in structure, reliable in performance and capable of identifying at least four nail cartridge assemblies.

[0007] The technical scheme: a kind of electric anastomat capable of identifying at least four cartridge assemblies described in the application, including detachably connected cartridge assembly and body, the cartridge assembly includes cartridge inner core tube, the cartridge inner core tube is provided for the inner core connecting rod for being connected with body, the inner core connecting rod is provided with sub-identification protrusion;The body includes motor, control circuit board and power supply, control chip is arranged on the control circuit board, the control chip is connected with motor and power supply respectively, motor is connected with power supply, the output end of motor is connected with firing connecting rod;The bottom or side of the firing connecting rod is interval arranged with several travel switches, the firing connecting rod is opened for the notch for triggering travel switch;Three groups of photoelectric sensors are arranged at the bottom of control circuit board, and the three groups of photoelectric sensors are connected with control chip through data line, and each group of photoelectric sensor is composed of a transmitting end and a receiving end;Sensing plate is slidably arranged in the interval between the transmitting end and the receiving end, the front end of the sensing plate is fixedly connected with the pushing connecting rod, and the front end of the pushing connecting rod is used to abut against the end surface of the inner core connecting rod;Auxiliary identification connecting rod is slidably arranged in the body, and the end of the auxiliary identification connecting rod close to the motor is provided with auxiliary identification switch, and the other end of the auxiliary identification connecting rod is used to abut against the sub-identification protrusion of the connecting rod.In the cartridge assembly is inserted into the body, first, the end surface of the inner core connecting rod pushes the pushing connecting rod and the sensing plate to slide, and after stabilizing, the sensing plate is inserted between the transmitting end and the receiving end, at the same time, according to the design of sub-identification, the sub-identification protrusion may push the auxiliary identification connecting rod to trigger the auxiliary identification switch, or the sub-identification protrusion may not push the auxiliary identification connecting rod to trigger the auxiliary identification switch;After the control chip judges the specific style of the cartridge assembly according to the signals of the photoelectric sensor and the signals of the auxiliary identification switch, the motor is controlled to rotate until the notch on the firing connecting rod moves to trigger the corresponding travel switch, so as to control the forward length of the firing connecting rod.For example: the working stroke of cutting knife is 45mm, and the cartridge assembly has two sub-identifications A and B, the lengths of the inner core connecting rods of A and B are the same, and the main difference between A and B is that the widths of the assemblies are different, and the heights of the titanium nails are different, in order to identify A and B, different lengths of sub-identification protrusions are designed on A and B, that is, the sub-identification protrusion of A is long, and the sub-identification protrusion of B is short, when A is inserted, the end surface of the inner core connecting rod pushes the sensing plate to insert between the transmitting end and the receiving end, triggers the second group of photoelectric sensors, the sub-identification protrusion of A pushes the auxiliary identification connecting rod to trigger the auxiliary identification switch, and the control chip judges that the inserted style is 45mm specification A according to the triggering of the second group of photoelectric sensors and the triggering of the auxiliary identification switch;When B is inserted, the end surface of the inner core connecting rod pushes the sensing plate to insert between the transmitting end and the receiving end, triggers the second group of photoelectric sensors, the sub-identification protrusion of B does not push the auxiliary identification connecting rod to trigger the auxiliary identification switch, and the control chip judges that the inserted style is 45mm specification-B according to the triggering of the second group of photoelectric sensors and the non-triggering of the auxiliary identification switch.

[0008] Further, a plurality of sensing openings are formed on the sensing plate. The sensing openings are used for the signals of the transmitting end to pass through the sensing plate to assist the control chip to determine the style, that is, after the sensing plate is inserted between the transmitting end and the receiving end, which group of signals of the transmitting end can be received by the corresponding receiving end, the control chip can determine the corresponding style of the inserted nail magazine assembly.

[0009] Further, the distance between the two adjacent groups of photoelectric sensors is equal.

[0010] Further, the photoelectric sensor group comprises a first photoelectric sensor group, a second photoelectric sensor group and a third photoelectric sensor group, the distance between the first photoelectric sensor group and the second photoelectric sensor group is greater than the distance between the transmitting end of the second photoelectric sensor group and the transmitting end of the third photoelectric sensor group, the sensing plate is provided with a first sensing opening and a second sensing opening, the width of the second sensing opening is equal to the distance between the transmitting end of the second photoelectric sensor group and the transmitting end of the third photoelectric sensor group, and the distance between the first sensing opening and the second sensing opening is greater than the distance between the first photoelectric sensor group and the second photoelectric sensor group.

[0011] Further, the motor is arranged at the bottom of the body, the output end of the motor is provided with a transmission gear, the firing connecting rod comprises a rack and a firing rod, the front end of the rack is detachably connected with the rear end of the firing rod, and the transmission gear is in meshing connection with the rack.

[0012] Further, one side of the output end of the motor is fixedly provided with a sliding rod, the sliding rod is in sliding connection with the safety gear, in the first position, part of the safety gear is in meshing connection with the transmission gear, and the other part of the safety gear is in meshing connection with the rack, in the second position, the whole safety gear is in meshing connection with the transmission gear, and the safety gear is disconnected with the rack. When the safety gear is in the first position, the anastomat is in normal operation, and when the anastomat encounters an emergency, the safety gear is only needed to be pressed down to disconnect the safety gear with the rack, so that the circuit is disconnected to protect the anastomat.

[0013] Further, the power supply can be a lithium battery pack integrated in the body, or an external direct current power supply or an alternating current power supply.

[0014] Further, the outer wall of the firing rod is sleeved with a rotating shaft sleeve.

[0015] Beneficial effects: compared with the prior art, the present application has the following advantages: the present application classifies the nail magazine assembly, identifies the general category of the nail magazine assembly through the photoelectric sensor group, identifies the sub-category of the nail magazine assembly through the auxiliary identification switch, and combines the signals of the photoelectric sensor and the auxiliary identification switch to achieve the purpose of identifying at least four nail magazine assemblies. Moreover, the present application mainly relies on mechanical structure to realize the identification function, the structure is relatively simple, and the structure is reliable, BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 isometric view of one angle of the invention.

[0017] Figure 2 isometric view of one angle of the key components of the body of the invention.

[0018] Figure 3 isometric view of another angle of the key components of the body of the invention.

[0019] Figure 4 isometric view of Figure 2 enlarged view of A.

[0020] Figure 5 isometric view of Figure 3 enlarged view of B.

[0021] Figure 6 schematic view of the rack and travel switch combination from one angle.

[0022] Figure 7 schematic view of the rack and travel switch combination from another angle.

[0023] Figure 8 isometric view of the rack from one angle.

[0024] Figure 9 isometric view of the rack from another angle.

[0025] Figure 10 schematic view of the combination of the auxiliary identification link and auxiliary identification switch.

[0026] Figure 11 schematic view of the combination of the control circuit board, sensing plate and push link.

[0027] Figure 12 sensing plate in the first embodiment.

[0028] Figure 13 schematic view of the photoelectric sensor group.

[0029] Figure 14 schematic view of the combination of the sensing plate and three groups of photoelectric sensors in the first embodiment.

[0030] Figure 15 position relationship between the sensing plate and photoelectric sensor group in the first embodiment.

[0031] Figure 16 schematic view of the combination of the sensing plate and three groups of photoelectric sensors in the second embodiment.

[0032] Figure 17The position relationship between the induction plate and the photoelectric induction group in the second embodiment.

[0033] Figure 18 The schematic diagram of the cartridge assembly in the present application.

[0034] Figure 19 The position relationship between the induction plate and the photoelectric induction group in the second embodiment. Figure 18 The enlarged view at C.

[0035] Wherein: 1, the body; 101, control circuit board; 102, control chip; 103, rack; 1031, notch; 104, motor; 105, push link; 106, firing rod; 107, auxiliary identification link; 108, safety gear; 109, transmission gear; 110, first induction plate; 1101, induction opening; 110', second induction plate; 1101', first induction opening; 1102', second induction opening; 111, auxiliary identification switch; 112, side plate; 113, bottom plate; 114, first travel switch; 115, second travel switch; 116, third travel switch; 117, fourth travel switch; 118, fifth travel switch; 119, photoelectric induction group; 1191, transmitting end; 1192, receiving end; 1193, first photoelectric induction group; 1194, second photoelectric induction group; 1195, third photoelectric induction group; 120, rotating shaft sleeve; 2, cartridge assembly; 201, cartridge inner core tube; 202, inner core connecting rod; 203, sub-identification protrusion. Embodiment

[0036] The technical solutions of the present application are further described below in conjunction with the drawings.

[0037] Referring to the drawings Figures 1-19 The present application shows an electric anastomat capable of identifying at least four cartridge assemblies, which comprises a cartridge assembly 2 and a body 1 connected detachably.

[0038] The cartridge assembly 2 comprises a cartridge inner core tube 201, an inner core connecting rod 202 provided for connecting with the body 1, and a sub-identification protrusion 203 provided on the inner core connecting rod 202.

[0039] The body 1 comprises a motor 104, a control circuit board 101 and a power supply (not shown), which can be a lithium battery pack integrated in the body 1 or an external DC power supply or an AC power supply; the control circuit board 101 is provided with a control chip 102, which is connected with the motor 104 and the power supply respectively, the motor 104 is connected with the power supply, the output end of the motor 104 is connected with a firing connecting rod, the firing connecting rod comprises a rack 103 and a firing rod 106, the outer wall of the firing rod 106 is sleeved with a rotating shaft sleeve 120, the front end of the rack 103 is detachably connected with the rear end of the firing rod 106; the side of the rack 103 is provided with a side plate 112, the side plate 112 is provided with a first travel switch 114, a second travel switch 115 and a third travel switch 116, the bottom of the rack 103 is provided with a bottom plate 113, the bottom plate 113 is provided with a fourth travel switch 117 and a fifth travel switch 118, and the bottom wall and the side wall of the rack 103 are both provided with notches 1031 for triggering the travel switches.

[0040] The motor 104 is arranged at the bottom of the body 1, the output end of the motor 104 is provided with a transmission gear 109, one side of the output end of the motor 104 is fixedly provided with a sliding rod, the sliding rod is slidably connected with a safety gear 108, in a first position, a part of the safety gear 108 is meshingly connected with the transmission gear 109, and another part of the safety gear 108 is meshingly connected with the rack 103; in a second position, the whole safety gear 108 is meshingly connected with the transmission gear 109, and the safety gear 108 is disconnected with the rack 103. When the safety gear 108 is in the first position, the anastomat is in normal operation, when the anastomat encounters an emergency situation, the safety gear 108 is only needed to be pressed down to be disconnected with the rack 103, so as to disconnect the circuit and protect the anastomat.

[0041] The bottom of the control circuit board 101 is provided with three groups of photoelectric sensors 119, which are a first group of photoelectric sensors 1193, a second group of photoelectric sensors 1194 and a third group of photoelectric sensors 1195, the first group of photoelectric sensors 1193, the second group of photoelectric sensors 1194 and the third group of photoelectric sensors 1195 are connected with the control chip 102 through data lines, each group of photoelectric sensors 119 is composed of a transmitting end 1191 and a receiving end 1192; a sensing plate is slidably arranged in the interval between the transmitting end 1191 and the receiving end 1192, the front end of the sensing plate is fixedly connected with a pushing connecting rod 105, the front end of the pushing connecting rod 105 is used for abutting against the end surface of the inner core connecting rod 202; an auxiliary identification connecting rod 107 is slidably arranged in the body 1, an auxiliary identification switch 111 is arranged at one end of the auxiliary identification connecting rod 107 close to the motor 104, the auxiliary identification switch 111 is fixedly arranged on the other side of the side plate 112, and the other end of the auxiliary identification connecting rod 107 is used for abutting against the identification protrusion 203 of the connecting rod.

[0042] After the cartridge assembly 2 is inserted into the body 1, the end face of the inner core connecting rod 202 first pushes the push link 105 and the sensing plate to slide, and after being stabilized, the sensing plate is inserted between the emitting end 1191 and the receiving end 1192, at the same time, according to the design of the sub-variety, the sub-variety identification protrusion 203 may push the auxiliary identification link 107 to trigger the auxiliary identification switch 111, or the sub-variety identification protrusion 203 may not push the auxiliary identification link 107 to trigger the auxiliary identification switch 111; the control chip 102 judges the specific variety of the cartridge assembly 2 according to the signals of the photoelectric sensor group 119 and the signals of the auxiliary identification switch 111, controls the motor 104 to rotate, and the gap 1031 on the firing link moves to the corresponding travel switch to control the forward length of the firing link. For example, the working stroke of the cutting knife is 45mm, and the cartridge assembly 2 has two sub-varieties A and B, the lengths of the inner core connecting rods 202 of the A and B varieties are the same, and the main difference between the A and B varieties is that the widths of the assemblies are different and the heights of the titanium nails are different. In order to identify the A and B varieties, different lengths of the sub-variety identification protrusions 203 are designed on the A and B varieties respectively, that is, the sub-variety identification protrusion 203 of the A variety is long, and the sub-variety identification protrusion 203 of the B variety is short. When the A variety is inserted, the end face of the inner core connecting rod 202 pushes the sensing plate to be inserted between the emitting end 1191 and the receiving end 1192, triggers the second photoelectric sensor group 1194, the sub-variety identification protrusion 203 of the A variety pushes the auxiliary identification link 107 to trigger the auxiliary identification switch 111, and the control chip 102 judges that the inserted variety is 45mm specification A variety according to the triggering of the second photoelectric sensor group 1194 and the triggering of the auxiliary identification switch 111. When the B variety is inserted, the end face of the inner core connecting rod 202 pushes the sensing plate to be inserted between the emitting end 1191 and the receiving end 1192, triggers the second photoelectric sensor group 1194, the sub-variety identification protrusion 203 of the B variety does not push the auxiliary identification link 107 to trigger the auxiliary identification switch 111, and the control chip 102 judges that the inserted variety is 45mm specification B variety according to the triggering of the second photoelectric sensor group 1194 and the non-triggering of the auxiliary identification switch 111.

[0043] The different designs of the sensing plate make the number of varieties that can be theoretically identified between the three photoelectric sensor groups 119 and the sensing plate different, which is shown in the following segment description.

[0044] If the light signal emitted by the emitting end 1191 can be received by the receiving end 1192, the signal received by the control chip 102 is "1", otherwise, if the signal emitted by the emitting end 1191 is blocked by the inserted sensing plate, the receiving end 1192 cannot receive the light signal, and the signal received by the control chip 102 is "0". Embodiment

[0045] As Figure 14As shown, the distances between the first photoelectric sensor group 1193, the second photoelectric sensor group 1194 and the third photoelectric sensor group 1195, and between adjacent photoelectric sensor groups 119, are equal. A sensing opening 1101 is opened on the first sensing plate 110.

[0046] like Figure 15 As shown in Figure a, the situation is when the nail cartridge assembly 2 is not inserted. At this time, the first photoelectric sensor group 1193 and the second photoelectric sensor group 1194 are not blocked by the first sensing plate 110, while the third photoelectric sensor group 1195 is blocked by the first sensing plate 110. At this time, the signal received by the control chip 102 is "110". After the nail cartridge assembly 2 is inserted, theoretically, the first sensing plate 110 can slide to a maximum of three positions. The first position is shown in Figure b. At this time, the first photoelectric sensor group 1193 and the third photoelectric sensor group 1195 are not blocked by the first sensing plate 110, while the second photoelectric sensor group 1194 is blocked by the first sensing plate 110. At this time, the signal received by the control chip 102 is "101"; the second position is shown in Figure c, at this time, the first photoelectric sensor group 1193 and the third photoelectric sensor group 1195 are blocked by the first sensing plate 110, while the second photoelectric sensor group 1194 is not blocked by the first sensing plate 110, and the signal received by the control chip 102 is "010"; the third position is shown in Figure d, at this time, the first photoelectric sensor group 1193 is not blocked by the first sensing plate 110, while the second photoelectric sensor group 1194 and the third photoelectric sensor group 1195 are blocked by the first sensing plate 110, and the signal received by the control chip 102 is "100".

[0047] In this embodiment, the control chip 102 can identify three specifications of nail box assembly 2 based on the received signal. Each specification of nail box assembly 2 can have two different length sub-types of identification protrusion 203. Therefore, this embodiment can identify at least three types of nail box assembly 2 and at most six types of nail box assembly 2. Example

[0048] like Figure 16 As shown, the distance between the first photoelectric sensor group 1193 and the second photoelectric sensor group 1194 is greater than the distance between the emitting end 1191 of the second photoelectric sensor group 1194 and the emitting end 1191 of the third photoelectric sensor group 1195. A first sensing opening 1101' and a second sensing opening 1102' are opened on the second sensing plate 110'. The width of the second sensing opening 1102' is equal to the distance between the emitting end 1191 of the second photoelectric sensor group 1194 and the emitting end 1191 of the third photoelectric sensor group 1195, and the distance between the first sensing opening 1101' and the second sensing opening 1102' is greater than the distance between the first photoelectric sensor group 1193 and the second photoelectric sensor group 1194.

[0049] As shown in Figure 17 Figure e is the case when the staple cartridge assembly 2 is not inserted, at this time the first photoelectric sensor group 1193 is not blocked by the second sensing plate 110', the second photoelectric sensor group 1194 and the third photoelectric sensor group 1195 are blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "100"; after the staple cartridge assembly 2 is inserted, theoretically the second sensing plate 110' will slide to at most six positions, wherein the first position is shown in Figure f, at this time the first photoelectric sensor group 1193 and the second photoelectric sensor group 1194 are not blocked by the second sensing plate 110', the third photoelectric sensor group 1195 is blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "110"; the second position is shown in Figure g, at this time the first photoelectric sensor group 1193, the second photoelectric sensor group 1194 and the third photoelectric sensor group 1195 are all blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "000"; the third position is shown in Figure h, at this time the first photoelectric sensor group 1193 and the second photoelectric sensor group 1194 are blocked by the second sensing plate 110', the third photoelectric sensor group 1195 is not blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "001"; the fourth position is shown in Figure i, at this time the first photoelectric sensor group 1193 and the third photoelectric sensor group 1195 are not blocked by the second sensing plate 110', the second photoelectric sensor group 1194 is blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "101"; the fifth position is shown in Figure j, at this time the first photoelectric sensor group 1193 is blocked by the second sensing plate 110', the second photoelectric sensor group 1194 and the third photoelectric sensor group 1195 are not blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "011"; the sixth position is shown in Figure k, at this time the first photoelectric sensor group 1193 and the third photoelectric sensor group 1195 are blocked by the second sensing plate 110', the second photoelectric sensor group 1194 is not blocked by the second sensing plate 110', at this time the control chip 102 receives the signal "010".

[0050] In this embodiment, the control chip 102 can identify six specifications of staple cartridge assemblies 2 according to the received signals, and each specification of staple cartridge assembly 2 can have two different length sub-specifications of identification protrusions 203, so this embodiment can identify at least six sub-specifications of staple cartridge assemblies 2, and at most twelve sub-specifications of staple cartridge assemblies 2.

Claims

1. An electric stapler capable of recognizing at least four staple cartridge assemblies, characterized in that: The application relates to a detachable connecting cartridge assembly (2) and a body (1), wherein the cartridge assembly (2) comprises a cartridge inner core pipe (201) provided with an inner core connecting rod (202) for connecting with the body (1), and a sub-variety identification protrusion (203) is arranged on the inner core connecting rod (202); the body (1) comprises a motor (104), a control circuit board (101) and a power supply, a control chip (102) is arranged on the control circuit board (101), the control chip (102) is connected with the motor (104) and the power supply respectively, the motor (104) is connected with the power supply, and the output end of the motor (104) is connected with a firing connecting rod; a plurality of travel switches are arranged at intervals on the bottom or side of the firing connecting rod, and a notch (1031) for touching the travel switches is arranged on the firing connecting rod; three groups of photoelectric sensor groups (119) are arranged at the bottom of the control circuit board (101), the three groups of photoelectric sensor groups (119) are connected with the control chip (102) through data lines, each group of photoelectric sensor groups (119) is composed of a transmitting end (1191) and a receiving end (1192); a sensing plate is slidingly arranged in the interval between the transmitting end (1191) and the receiving end (1192), the front end of the sensing plate is fixedly connected with a pushing connecting rod (105), and the front end of the pushing connecting rod (105) is used for abutting against the end face of the inner core connecting rod (202); an auxiliary identification connecting rod (107) is slidingly arranged in the body (1), an auxiliary identification switch (111) is arranged at the end of the auxiliary identification connecting rod (107) close to the motor (104), and the other end of the auxiliary identification connecting rod (107) is used for abutting against the sub-variety identification protrusion (203) of the connecting rod.

2. The powered anastomosis device capable of identifying at least four staple cartridge assemblies of Claim 1, wherein: A plurality of sensing openings are arranged on the sensing plate.

3. The powered stapler capable of identifying at least four cartridge assemblies of claim 1, wherein: The distance between two adjacent groups of the photoelectric sensor groups (119) is equal.

4. The powered stapler capable of identifying at least four cartridge assemblies of claim 1, wherein: The photoelectric sensor groups (119) comprise a first photoelectric sensor group (1193), a second photoelectric sensor group (1194) and a third photoelectric sensor group (1195), the distance between the first photoelectric sensor group (1193) and the second photoelectric sensor group (1194) is greater than the distance between the second photoelectric sensor group (1194) and the third photoelectric sensor group (1195), a first sensing opening (1101') and a second sensing opening (1102') are arranged on the sensing plate, the width of the second sensing opening (1102') is equal to the distance between the transmitting end of the second photoelectric sensor group (1194) and the transmitting end of the third photoelectric sensor group (1195), and the distance between the first sensing opening (1101') and the second sensing opening (1102') is greater than the distance between the first photoelectric sensor group (1193) and the second photoelectric sensor group (1194).

5. The powered stapler capable of identifying at least four cartridge assemblies of claim 1, wherein: The motor (104) is arranged at the bottom of the body (1), the output end of the motor (104) is provided with a transmission gear (109), the firing connecting rod comprises a rack (103) and a firing rod (106), the front end of the rack (103) is detachably connected with the rear end of the firing rod (106), and the transmission gear (109) is in meshing connection with the rack (103).

6. The powered anastomosis device capable of identifying at least four staple cartridge assemblies of Claim 5, wherein: One side of the output end of the motor (104) is fixedly provided with a sliding rod, the sliding rod is in sliding connection with a safety gear (108), in the first position, part of the safety gear (108) is in meshing connection with the transmission gear (109), and the other part of the safety gear (108) is in meshing connection with the rack (103); in the second position, the whole safety gear (108) is in meshing connection with the transmission gear (109), and the safety gear (108) is disconnected with the rack (103).

7. The powered surgical stapler of claim 1 wherein the at least four staple cartridge assemblies are distinguishable by at least four different colors. The power supply is a lithium battery pack integrated in the body (1) or an external direct-current power supply or an alternating-current power supply.

8. The powered stapler capable of identifying at least four cartridge assemblies of claim 5, wherein: The outer wall of the firing rod (106) is sleeved with a rotating shaft sleeve (120).

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