Laparoscopic adapter and anastomosis device

Abstract

The present invention discloses a laparoscope adapter connected to an electric mainframe platform, characterized by comprising a clutch-transfer device (1), a transmission device (2), and a stapler device (4); the clutch-transfer device (1), the transmission device (2), and the stapler device (4) are connected in sequence; the first transmission position of the clutch-transfer device (1) controls the closing / opening of the stapler device (4) through the transmission device (2), and the second transmission position of the clutch-transfer device (1) controls the firing / resetting of the cutting knife through the transmission device (2). The present invention separates and modularizes the electric mainframe platform and the adapter, which not only improves the adaptability of the electric laparoscope stapler, but also enables the electric mainframe platform to be reused, effectively reducing the cost of surgical instruments.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a laparoscope adapter for an electric laparoscope stapler. Background Art

[0002] In recent years, minimally invasive surgery in my country has developed rapidly, and laparoscopic staplers occupy an important position in minimally invasive surgery. During minimally invasive abdominal surgery, laparoscopic staplers with more sophisticated performance and structure are needed to achieve tissue cutting and suturing. Traditional laparoscopic staplers can no longer meet surgical needs and are replaced by a new generation of electric laparoscopic staplers. Compared with traditional laparoscopic staplers, electric laparoscopic staplers have the advantages of more stable tissue cutting and suturing, less labor-intensive use, and shorter surgical time. Therefore, it is urgent to develop an electric laparoscopic stapler with better performance. The present invention introduces a laparoscopic adapter with a replaceable stapler cartridge for an electric laparoscopic stapler.

[0003] In recent years, electric laparoscopic staplers have flourished and occupy an important position in minimally invasive surgery. Currently, there are many electric laparoscopic staplers with different structures on the market, including integrated structures and split structures. Among them, the electric laparoscopic staplers with integrated structures need to realize the transmission switching of closing the staple magazine and cutting and suturing tissue functions. The electric main unit and the front-end transmission device of the existing integrated electric laparoscopic staplers cannot be structurally separated, resulting in low adaptability.

[0004] The stapler cartridge of a one-piece electric laparoscopic stapler is fixed in size and has limited adaptability. However, multiple cartridges are required during surgery, and a replaceable cartridge structure reduces surgical costs. The stapler cartridge of a split-piece structure is located on the component, and components can be replaced to accommodate different sizes. This provides strong adaptability, but multiple components must be replaced during a single surgery, which is more expensive than replacing cartridges. Whether the electric laparoscopic stapler currently on the market is a one-piece structure or a split-piece structure with a gun body and components, it is single-use. The gun body cannot be reused, which increases surgical costs.

[0005] How to solve the technical problem of reusable gun bodies in the existing technology is a technical problem that urgently needs to be solved. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to solve the technical problem that the gun body in the prior art cannot be reused.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A laparoscope adapter is connected to an electric host platform, and is characterized by comprising a clutch-transfer device (1), a transmission device (2), and a staple cartridge device (4); the clutch-transfer device (1), the transmission device (2), and the staple cartridge device (4) are connected in sequence;

[0009] The first transmission position of the clutch shifting device (1) controls the closing / opening of the nail magazine device (4) through the transmission device (2), and the second transmission position of the clutch shifting device (1) controls the firing / resetting of the cutting knife through the transmission device (2).

[0010] Furthermore, it also includes a bending device (3); the bending device (3) is located between the transmission device (2) and the nail magazine device (4);

[0011] The bending device (3) is used to realize a bending action of the nail magazine device (4).

[0012] Furthermore, it also includes a housing device (5);

[0013] The housing device (5) is connected to the clutch shifting device (1) and is used to switch the first transmission position and the second transmission position of the clutch shifting device (1).

[0014] Furthermore, it also includes a knob device (6); the knob device (6) controls the bending of the bending device (3) through the transmission device (2).

[0015] Furthermore, the clutch shifting device (1) comprises a first transmission position component and a second transmission position component.

[0016] When the housing device (5) is connected to the first transmission position assembly, the housing device (5) is located in the first transmission position;

[0017] When the housing device (5) is connected to the second transmission position assembly, the housing device (5) is located at the second transmission position.

[0018] Furthermore, the clutch transposition device (1) comprises:

[0019] A locking device (101), a transmission housing (102) and a transmission shaft (103);

[0020] The locker (101) is fixedly connected to the transmission housing (102);

[0021] The locking device (101) further comprises a transmission hole (1013), wherein the transmission hole (1013) is used for installing the transmission shaft (103); the proximal end of the transmission shaft (103) passes through the locking device (101) and is connected to the motor platform.

[0022] Furthermore, the transmission housing (102) includes a clutch shaft (104), a clutch plate (105), a first end face bearing (106), a clutch screw (107), and a nut sleeve (108);

[0023] The distal end of the transmission shaft (103) is fixedly connected to the proximal end of the clutch shaft (104);

[0024] The distal side wall of the clutch shaft (104) is provided with a displacement groove (1043) for accommodating the clutch plate (105), and the height of the clutch plate (105) is greater than the diameter of the clutch shaft (104);

[0025] The first end face bearing (106) is connected to one end of the clutch screw (107) and is used to bear the axial load of the clutch screw (107) and reduce the end face friction of the clutch screw (107);

[0026] The outer side wall of the clutch screw rod (107) is provided with a first thread (1072), and the inner side wall of the nut sleeve (108) is provided with a second thread (1081). The nut sleeve (108) is screwed into the first thread (1072) of the clutch screw rod (107) through the second thread (1081), so that the nut sleeve (108) and the clutch screw rod (107) are fixedly connected to complete self-locking.

[0027] Furthermore, the transmission housing (102) further comprises a clutch converter (109), a second end bearing (111), a driving screw (112), and a fixing sleeve (113);

[0028] The proximal end of the clutch converter (109) is mounted on the distal end of the clutch screw (107);

[0029] There are two second end face bearings (111), which are respectively mounted on both ends of the third annular limiting block (1122) of the driving screw rod (112);

[0030] The third limiting platform (1124) at the proximal end of the driving screw (112) is inserted into the third limiting groove (1092) at the distal end of the clutch converter (109), and then inserted together into the inner cavity (1132) of the fixing sleeve (113).

[0031] Furthermore, the clutch transposition device (1) further comprises a clutch shaft locker (114), a clutch transposition bracket (115),

[0032] A second annular stopper (1042) is provided at the proximal end of the clutch shaft (104), and the clutch shaft locker (114) is mounted on the second annular stopper (1042) of the clutch shaft (104);

[0033] The clutch shaft locker (114) is fixedly connected to the clutch transposition bracket (115).

[0034] Furthermore, the clutch converter (109) is limited in a first limiting groove (1028) of the transmission housing (102);

[0035] A second triangular transposition structure (1091) is provided inside the clutch converter (109);

[0036] The third limiting platform (1124) of the driving screw (112) is inserted into the third limiting groove (1092) of the clutch converter (109).

[0037] Furthermore, the transmission device (2) comprises a transmission restraint (201), a first transmission tube (203), a first transmission tube conversion sleeve (204), a connecting piece (212), and a transfer tube (213);

[0038] The transmission restraint (201) is divided into two upper and lower cavities, which fix the clutch shifting device (1) and the transmission device (2);

[0039] The first transmission tube conversion sleeve (204) is sleeved on the first transmission tube (203), and the distal end of the first transmission tube (203) is connected to the conversion tube (213) via the connecting piece (212).

[0040] Furthermore, the transmission device (2) further comprises a nut sleeve (206), a propulsion nut (207), a firing sleeve (208), a second transmission tube converter (209), a second transmission tube conversion sleeve (210), and a cutting knife (211);

[0041] The nut sleeve (206) and the second transmission tube converter (209) are welded and fixed;

[0042] The propulsion nut (207) and the firing sleeve (208) are axially fixed;

[0043] The propulsion nut (207) and the firing sleeve (208) are inside the nut sleeve (206) and the second transmission tube converter (209);

[0044] The proximal end of the cutting knife (211) and the distal end of the firing sleeve (208) are fixedly connected.

[0045] Furthermore, the transmission device (2) further includes a steering bracket (202) and a second transmission tube (205);

[0046] The steering bracket (202) is sleeved on the transmission housing (102) and moves axially on the transmission housing (102);

[0047] A second positioning protrusion (20222) is provided at the end of the sliding rod (20221) of the steering bracket (202). The second positioning protrusion (20222) passes through the first clearance groove (2032) of the first transmission tube (203) and is installed in the sixth positioning hole (2051) corresponding to the second transmission tube (205), so that the steering bracket (202) can drive the second transmission tube (205) to perform axial movement within the travel range of the first clearance groove (2032).

[0048] Furthermore, the housing device (5) comprises an upper housing (501), a lower housing (502), a switching clutch handle (503), and a spring (504);

[0049] The upper shell (501) and the lower shell (502) are ultrasonically welded to fix the clutch shifting device (1) and the transmission device (2) inside the upper shell (501) and the lower shell (502);

[0050] The conversion clutch handle (503) is provided with a ninth limiting groove (5033). The spring piece (504) is pressed into the ninth limiting groove (5033) so that the spring piece (504) protrudes from both sides of the second positioning block (5031) of the conversion clutch handle (503). The length of the ninth limiting groove (5033) of the conversion clutch handle (503) is greater than the length of the spring piece (504). After being pressed, the spring piece (504) extends into the ninth limiting groove (5033), so that the ninth limiting groove (5033) limits the spring piece (504).

[0051] Furthermore, the bending device (3) includes a transmission base (301), a driving rack (303), a secondary rack (305), a driving gear (306), a bending gear (308), a first bending joint (311), and a second bending joint (312);

[0052] The driving rack (303), the auxiliary rack (305), and the driving gear (306) are respectively mounted on the transmission base (301); the driving gear (306), the driving rack (303), and the auxiliary rack (305) are meshed with each other; the driving rack (303) moves axially in the driving rack groove (3016) of the transmission base (301); and the driving gear (306) transmits the driving force of the driving rack (303) to the auxiliary rack (305);

[0053] The bending gear (308) is fixedly connected to the transmission base (301);

[0054] The distal end of the first bending joint (311) is movably connected to the proximal end of the second bending joint (312), and the distal end of the second bending joint (312) is connected to the nail magazine device (4);

[0055] The first bending joint (311) can perform circular motion around the axis of the second mounting hole (3082) of the bending gear (308);

[0056] The second tooth surface (3121) of the second bending joint (312) is meshed with the first tooth surface (3083) of the bending gear (308);

[0057] The second bending joint (312) bends, driving the first bending joint (311) to bend, thereby causing the staple cartridge device to bend.

[0058] Furthermore, the bending device (3) further includes a first connecting rod (313) and a second connecting rod (314);

[0059] The proximal end of the first connecting rod (313) is fixedly connected to the driving rack (303);

[0060] The distal end of the first connecting rod (313) is fixedly connected to the proximal end of the second connecting rod (314);

[0061] The distal end of the second connecting rod (314) is fixedly connected to the second bending joint (312).

[0062] Furthermore, the knob device (6) includes a knob assembly (601), a knob base (602), a knob positioner (603), a stop sleeve (604), a stopper (605), and a stop spring (606);

[0063] The knob assembly (601) is mounted on the upper housing (501);

[0064] The knob base (602) is mounted on the lower end of the knob assembly (601);

[0065] The knob locator (603) is mounted on the knob base (602);

[0066] The stopper (605) is sleeved with the stop spring (606) and inserted into the stop sleeve (604).

[0067] The present invention also discloses an anastomosis device, comprising any one of the above laparoscope adapters.

[0068] After adopting such a design, the present invention has at least the following advantages:

[0069] (1) The present invention is a laparoscopic adapter with a replaceable staple cartridge based on an electric mainframe platform. The laparoscopic adapter with a replaceable staple cartridge is connected to the electric mainframe platform via a transmission shaft and a locker. The transmission device can realize the transmission switching between closing the staple cartridge and cutting and suturing tissue functions through a clutch shifting device, thereby realizing the modularization of the electric mainframe and the transmission device, enabling the reuse of the electric mainframe platform, and improving the adaptability of the electric laparoscopic stapler.

[0070] (2) The present invention separates and modularizes the electric host platform and the adapter, which not only improves the adaptability of the electric laparoscopic stapler, but also allows the electric host platform to be reused, effectively reducing the cost of surgical instruments.

[0071] (3) The adapter designed by the present invention only needs to provide a drive shaft for the electric host platform. The clutch shifting device of the adapter can switch between two transmission positions by adjusting the clutch shifting bracket outside the transmission housing, thereby realizing that one drive shaft can simultaneously control the two functions of closing the staple cartridge and cutting and suturing tissue.

[0072] (4) The double joints designed in the present invention share the bending curvature of a single joint, so under the same bending curvature, the bending angle of the double joints is larger.

[0073] (5) The present invention has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0075] Figure 1 This is an overall structural diagram of a laparoscope adapter according to an embodiment of the present invention;

[0076] Figure 2 This is an overall structural diagram of a clutch shifting device 1 according to an embodiment of the present invention;

[0077] Figure 3 1 is a schematic structural diagram of a locking device 101 according to an embodiment of the present invention;

[0078] Figure 4 This is a schematic structural diagram of a transmission housing 102 according to an embodiment of the present invention;

[0079] Figure 5 is a schematic structural diagram of a transmission shaft 103 according to an embodiment of the present invention;

[0080] Figure 6 1 is a schematic diagram of the installation of the clutch shaft 104 and the clutch plate 105 according to an embodiment of the present invention;

[0081] Figure 7 1 is a schematic structural diagram of a first end bearing 106 according to an embodiment of the present invention;

[0082] Figure 8 1 is a schematic structural diagram of a clutch screw rod 107 according to an embodiment of the present invention;

[0083] Figure 9 1 is a schematic diagram of the coordination of the clutch shaft 104, the clutch plate 105, the first end bearing 106, and the clutch screw 107 according to an embodiment of the present invention;

[0084] Figure 10 This is a structural diagram of a nut sleeve 108 according to an embodiment of the present invention;

[0085] Figure 11 This is a schematic diagram of the internal coordination of a clutch shifting device 1 according to an embodiment of the present invention;

[0086] Figure 12 This is a schematic diagram of the interior of a clutch shifting device 1 according to an embodiment of the present invention;

[0087] Figure 13 1 is a schematic structural diagram of a clutch converter 109 according to an embodiment of the present invention;

[0088] Figure 14 1 is a schematic structural diagram of a compression ring 110 according to an embodiment of the present invention;

[0089] Figure 15 1 is a schematic structural diagram of a second end bearing 111 according to an embodiment of the present invention;

[0090] Figure 16 This is a schematic structural diagram of a driving screw rod 112 according to an embodiment of the present invention;

[0091] Figure 17 It is a structural schematic diagram and an anatomical schematic diagram of a fixing sleeve 113 according to an embodiment of the present invention;

[0092] Figure 18 1 is a schematic structural diagram of a clutch shaft locker 114 according to an embodiment of the present invention;

[0093] Figure 19This is a schematic structural diagram of a clutch transposition bracket 115 according to an embodiment of the present invention;

[0094] Figure 20 Schematic diagram of a clutch shifting device 1 according to an embodiment of the present invention;

[0095] Figure 21 This is a schematic diagram of the first transmission of the clutch shifting device 1 according to one embodiment of the present invention after firing;

[0096] Figure 22 This is a schematic diagram of the clutch shifting device 1 entering the second transmission according to an embodiment of the present invention;

[0097] Figure 23 1 is a schematic diagram of the installation of a clutch shifting device 1 and a transmission device 2 according to an embodiment of the present invention;

[0098] Figure 24 This is a schematic diagram of the internal installation of the clutch shifting device 1 and the transmission device 2 according to an embodiment of the present invention;

[0099] Figure 25 201 is a schematic structural diagram of a transmission restraint device according to an embodiment of the present invention;

[0100] Figure 26 is a schematic structural diagram of a steering bracket 202 according to an embodiment of the present invention;

[0101] Figure 27 This is a schematic structural diagram of the first transmission tube 203 according to an embodiment of the present invention;

[0102] Figure 28 This is a schematic structural diagram of a first transmission tube conversion sleeve 204 according to an embodiment of the present invention;

[0103] Figure 29 This is a schematic structural diagram of the second transmission tube 205 according to an embodiment of the present invention;

[0104] Figure 30 This is a schematic structural diagram of a nut sleeve 206 according to an embodiment of the present invention;

[0105] Figure 31 1 is a schematic structural diagram of a push nut 207 according to an embodiment of the present invention;

[0106] Figure 32 2 is a schematic structural diagram of a firing sleeve 208 according to an embodiment of the present invention;

[0107] Figure 33 This is a schematic structural diagram of a second transmission tube converter 209 according to an embodiment of the present invention;

[0108] Figure 34 This is a structural diagram of a second transmission pipe conversion sleeve 210 according to an embodiment of the present invention;

[0109] Figure 35 2 is a schematic structural diagram of a cutting blade 211 according to an embodiment of the present invention;

[0110] Figure 36 is a schematic structural diagram of a connecting piece 212 according to an embodiment of the present invention;

[0111] Figure 37 This is a schematic structural diagram of a transfer tube 213 according to an embodiment of the present invention;

[0112] Figure 38 1 is a schematic side cross-sectional view of a clutch shifting device 1 and a transmission device 2 according to an embodiment of the present invention;

[0113] Figure 39 1 is a schematic transverse cross-sectional view of a clutch shifting device 1 and a transmission device 2 according to an embodiment of the present invention;

[0114] Figure 40 1 is a schematic structural diagram of a transmission base 301 according to an embodiment of the present invention;

[0115] Figure 41 This is a schematic structural diagram of a base side limit block 302 according to an embodiment of the present invention;

[0116] Figure 42 3 is a schematic structural diagram of a driving rack 303 and a locking block 304 according to an embodiment of the present invention;

[0117] Figure 43 30 is a schematic structural diagram of the auxiliary rack 305 and the driving gear 306 according to an embodiment of the present invention;

[0118] Figure 44 1 is a schematic structural diagram of a gear cover 307 according to an embodiment of the present invention;

[0119] Figure 45 3 is a schematic structural diagram of a bending gear 308, a limiting tube 309, and an opening retaining ring 310 according to an embodiment of the present invention;

[0120] Figure 46 2 is a schematic structural diagram of the first bending joint 311 according to an embodiment of the present invention;

[0121] Figure 47 1 is a schematic structural diagram of the second bending joint 312 according to an embodiment of the present invention;

[0122] Figure 48 3 is a schematic structural diagram of the first connecting rod 313 and the second connecting rod 314 according to an embodiment of the present invention;

[0123] Figure 49 Schematic diagram of a first connecting pin 315 and a second connecting pin 316 according to an embodiment of the present invention;

[0124] Figure 50This is a schematic diagram of the third connecting rod pin 317 and the gear pin 318 according to an embodiment of the present invention;

[0125] Figure 51 1 is a schematic diagram of the coordination between the bending device 3 and the staple cartridge device 4 according to an embodiment of the present invention;

[0126] Figure 52 This is a schematic diagram of the internal coordination of the bending device 3 and the staple cartridge device 4 according to an embodiment of the present invention;

[0127] Figure 53 1 is a schematic diagram of the coordination between the bending device 3 and the staple cartridge device 4 according to an embodiment of the present invention;

[0128] Figure 54 1 is a schematic structural diagram of a nail magazine base 401 according to an embodiment of the present invention;

[0129] Figure 55 1 is a schematic structural diagram of an anvil 402 according to an embodiment of the present invention;

[0130] Figure 56 1 is a schematic diagram of the zero position analysis of the housing device 5 and the knob device 6 according to an embodiment of the present invention;

[0131] Figure 57 2 is a non-zero position sectional diagram of the housing device 5 and the knob device 6 according to an embodiment of the present invention;

[0132] Figure 58 1 is a schematic structural diagram of an upper housing 501 according to an embodiment of the present invention;

[0133] Figure 59 is a schematic structural diagram of the lower housing 502 according to an embodiment of the present invention;

[0134] Figure 60 2 is a schematic structural diagram of a clutch handle 503 and a spring 504 according to an embodiment of the present invention;

[0135] Figure 61 is a structural diagram of a knob device 6 according to an embodiment of the present invention;

[0136] Figure 62 is a structural diagram of a knob device 6 according to an embodiment of the present invention;

[0137] Figure 63 Schematic diagram of the structure of the stop sleeve 604 and the stopper 605 according to an embodiment of the present invention;

[0138] Figure 64 This is a structural diagram of an initial state of a first transmission position of a laparoscopic adapter with a replaceable staple cartridge according to an embodiment of the present invention;

[0139] Figure 65 This is a schematic structural diagram of a laparoscope adapter with a replaceable staple cartridge according to an embodiment of the present invention, wherein the clutch is switched to the second transmission position;

[0140] Figure 66 This is a schematic structural diagram of the bending device 3 bending to the left at the maximum angle according to an embodiment of the present invention;

[0141] Figure 67 This is a schematic structural diagram of the gear engagement of the bending device 3 when bending to the left at the maximum angle according to one embodiment of the present invention;

[0142] Figure 68 This is a schematic structural diagram of the bending device 3 bending to the right at the maximum angle according to an embodiment of the present invention;

[0143] Figure 69 This is a schematic structural diagram of the bending device 3 bending to the right at the maximum angle according to an embodiment of the present invention;

[0144] Reference numerals,

[0145] Clutch transposition device 1, transmission device 2, bending device 3, nail magazine device 4, housing device 5, knob device 6, locker 101, transmission housing 102, transmission shaft 103, clutch shaft 104, clutch plate 105, first end bearing 106, clutch screw 107, nut sleeve 108, clutch converter 109, clamping ring 110, second end bearing 111, drive screw 112, fixing sleeve 113, clutch shaft locker 114, clutch transposition bracket 115, first positioning protrusion 1011, first positioning hole 1012, transmission hole 1013, locking groove 1014, coupling 1015, first positioning Slot 1021, first positioning pillar 1022, second positioning pillar 1023, second positioning hole 1024, first stroke groove 1025, first limiting plate 1026, second limiting plate 1027, first limiting groove 1028, first limiting protrusion 1029, pressing ring surface 10210, nut sleeve limiting surface 10211, second limiting groove 10212, first limiting platform 1031, first annular limiting block 1032, second limiting platform 1033, third limiting groove 1041, second annular limiting block 1042, displacement groove 1043, first triangular transposition structure 1071, first thread 1072, first thread 1073, first thread 1074, first thread 1075, first thread 1076, first thread 1077, first thread 1078, first thread 1079, first thread 1080, first thread 1081, first thread 1082, first thread 1083, first thread 1084, first thread 1085, first thread 1086, first thread 1087, first thread 1088, first thread 1089, first thread 1090, first thread 1091 Second thread 1081, limiting surface 1082, distal protrusion 1083, second triangular transposition structure 1091, third limiting groove 1092, chamfer 1101, third annular limiting block 1122, third limiting platform 1124, third thread 1125, fourth limiting groove 1131, inner cavity 1132, fourth limiting platform 1133, fifth limiting groove 1141, third positioning pillar 1142, sixth limiting groove 1151, fourth positioning pillar 1152, third positioning hole 1153, eighth positioning pillar 1154, transmission restraint 201, steering bracket 202, first transmission tube 203, first transmission tube Conversion sleeve 204, second transmission tube 205, nut sleeve 206, propulsion nut 207, firing sleeve 208, second transmission tube converter 209, second transmission tube conversion sleeve 210, cutting knife 211, connecting piece 212, conversion tube 213, fourth positioning hole 2011, fifth positioning support 2012, slide rail 2013, second travel groove 2014, fifth positioning hole 2015, axial hole 20211, sliding rod 20221, second positioning protrusion 20222, travel positioning block 2023, third travel groove 20231, first hole 2031, first clearance groove 2032, second hole 2033,Seventh limiting groove 2041, sixth positioning column 2042, seventh positioning column 2043, sixth positioning hole 2051, second making way groove 2052, third making way groove 2054, fifth limiting platform 2061, distal end of nut sleeve 2062, sixth limiting platform 2071, fourth thread 2072, first annular protrusion 2081, second positioning groove 2082, second annular protrusion 2091, annular groove 2092, arc-shaped positioning protrusion 2101, first positioning block 2102, third hole 2131, eighth positioning column 2121, transmission base 301, base side limiting block 302, driving rack 303, locking block 304, auxiliary rack 305, driving gear 306, gear cover 307, bending gear 308, limiting tube 3 09, open retaining ring 310, first bending joint 311, second bending joint 312, first connecting rod 313, second connecting rod 314, first connecting rod pin 315, second connecting rod pin 316, third connecting rod pin 317, gear pin 318, firing rod cavity 3011, seventh positioning hole 3012, gear mounting column 3015, drive rack groove 3016, auxiliary rack groove 3017, bending gear groove 3018, eighth positioning hole 3019, ninth positioning hole 3031, first mounting groove 3033, first mounting hole 3034, sixth positioning support 3081, second mounting hole 3082, first tooth surface 3083, mounting column 3111, third mounting hole 3112, second tooth surface 3121, second mounting groove 3122, fourth mounting hole Mounting hole 3123, connecting rod groove 3124, side mounting hole 3127, upper mounting hole 3128, gear pin 318, protrusion 3131, seventh mounting hole 3132, third mounting groove 3133, sixth mounting hole 3134, fifth mounting hole 3141, eighth mounting hole 3125, third positioning protrusion 3071, eighth mounting hole 3072, gear mounting column 3015, front end 30110, annular limiting groove 30111, limiting block 3101, cutting knife 211, conical surface 3021, yielding groove 3013, nail magazine base 401, fixing pin 404, annular positioning protrusion 3126, tenth positioning hole 4011, side mounting hole 4012, upper mounting hole 4013, upper shell 501, lower shell 502, conversion clutch The closing handle 503, the spring piece 504, the seventh positioning pillar 5012, the ninth positioning pillar 5022, the first travel groove 5016, the second travel groove 5026, the eighth limiting groove 5017, the eleventh limiting groove 5027, the second positioning block 5031, the eleventh positioning hole 5032, the ninth limiting groove 5033, the spring piece 504, the first concave positioning groove 5018, the second concave positioning groove 5028, the knob assembly 601, the knob base 602, the knob positioner 603, the stop sleeve 604, the stopper 605, the stop spring 606, the positioning groove 6021, the stop pillar 6041, the tenth limiting groove 6042, the stopper mounting groove 5019, the positioning rib 50110, the stop tip 6051, and the rod body 6052; DETAILED DESCRIPTION

[0146] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0147] In this document, “upper”, “lower”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0148] In the following, the end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of proximal end and distal end are only used to simplify and clarify the description and should not be understood as any limitation of the present invention.

[0149] like Figure 1-69 As shown, one embodiment of the present invention provides a laparoscope adapter, the proximal end of the laparoscope adapter is connected to the electric host platform, the laparoscope adapter includes a clutch shifting device 1, a transmission device 2, and a nail magazine device 4, the distal end of the clutch shifting device 1 is connected to the proximal end of the transmission device 2, and the distal end of the transmission device 2 is connected to the nail magazine device 4, the first transmission position of the clutch shifting device 1 controls the closing / opening of the nail magazine device 4 through the transmission device 2, and the second transmission position of the clutch shifting device 1 controls the firing / resetting of the cutting knife through the transmission device 2.

[0150] Specifically, the clutch shifting device 1 includes a locker 101, a transmission housing 102 and a transmission shaft 103. The distal end of the locker 101 is connected to the proximal end of the transmission housing 102. The distal end of the locker 101 is provided with a first positioning protrusion 1011, which is used to be inserted into the first positioning groove 1021 at the proximal end of the transmission housing 102; the proximal side wall of the transmission housing 102 is provided with a first positioning pillar 1022, and the first positioning pillar 1022 of the transmission housing 102 is inserted into the first positioning hole 1012 of the locker 101, so that the locker 101 and the transmission housing 102 are completely limited and fixedly connected.

[0151] The locker 101 further includes a transmission hole 1013 and a locking groove 1014. The transmission hole 1013 is used to install the transmission shaft 103, and the proximal end of the transmission shaft 103 is inserted into the transmission hole 1013; the locking groove 1014 is used to connect to the host.

[0152] The clutch shifting device 1 also includes a coupling 1015, which is inside the locker 101 and coaxial with the transmission hole 1013. A first limiting platform 1031 is provided at the proximal end of the transmission shaft 103. The first limiting platform 1031 passes through the transmission hole 1013 and is then inserted into the coupling 1015.

[0153] The transmission housing 102 includes a clutch shaft 104, a clutch plate 105, a first end bearing 106, a clutch screw 107, and a nut sleeve 108;

[0154] A second limiting platform 1033 is provided on the distal side wall of the transmission shaft 103, and a third limiting groove 1041 is correspondingly provided on the proximal inner wall of the clutch shaft 104. The second limiting platform 1033 at the distal end of the transmission shaft 103 is inserted into the third limiting groove 1041 of the clutch shaft 104, so that the transmission shaft 103 is fixedly connected to the clutch shaft 104; the transmission shaft 103 is connected to the output shaft of the motor platform through the coupling 1015.

[0155] A displacement groove 1043 is provided on the distal side wall of the clutch shaft 104. The displacement groove 1043 is a transparent structure from top to bottom and is used to place the clutch plate 105. The height of the clutch plate 105 is greater than the diameter of the clutch shaft 104. The clutch plate 105 is first inserted into the displacement groove 1043 of the clutch shaft 104. Here, the shape of the displacement groove 1043 corresponds to the shape of the clutch plate 105, which facilitates the insertion of the clutch plate 105.

[0156] The first end bearing 106 is sleeved on the proximal side wall of the clutch screw 107 to bear the axial load of the clutch screw 107 and reduce the end friction of the clutch screw 107;

[0157] The inner side wall of the proximal end of the clutch screw 107 is a first triangular transposition structure 1071. When the end of the clutch shaft 104 with the clutch plate 105 is inserted into the proximal end of the clutch screw 107, the clutch plate 105 is inserted into the first triangular transposition structure 1071.

[0158] The end surface of the first triangular transposition structure 1071 is a slope surface;

[0159] The end surface of the clutch plate 105 corresponds to a slope surface;

[0160] Here, the slope design of the first triangular transposition structure 1071 and the clutch plate 105 facilitates the smooth dislocation of the two during installation. Of course, other structural designs can also be used as long as they can ensure that the first triangular transposition structure 1071 and the clutch plate 105 are fixedly installed and locked.

[0161] Specifically, when the clutch shaft 104 with the clutch plate 105 is inserted into the first triangular transposition structure 1071 inside the clutch screw 107 at any angle, one side of the clutch plate 105 will contact the first triangular transposition structure 1071 inside the clutch screw 107. Due to the pressure of the first triangular transposition structure 1071 on the clutch plate 105, the clutch plate 105 is forced to move in the opposite direction in the displacement groove 1043 of the clutch shaft 104. At this time, the clutch plate 104 continues to move toward the inside of the clutch screw 107 until it moves to the gap between the first triangular transposition structure 1071 inside the clutch screw 107, thereby completing the locking connection between the clutch shaft 104 and the clutch screw 107. This locking position is the first transmission position.

[0162] A first thread 1072 is provided on the outside of the side wall of the clutch screw 107, and a second thread 1081 is provided on the inner wall of the nut sleeve 108. The nut sleeve 108 is screwed into the first thread 1072 of the clutch screw 107 through the second thread 1081, so that the nut sleeve 108 is fixedly connected to the clutch screw 107, completing self-locking.

[0163] A limiting surface 1082 is provided at the end of the side wall of the nut sleeve 108 , and the limiting surface 1082 cooperates with the nut sleeve limiting surface 10211 of the transmission housing 102 to enable the nut sleeve 108 to move axially in the transmission housing 102 .

[0164] The transmission shaft 103 , the clutch shaft 104 , the clutch plate 105 , the first end bearing 106 , the clutch screw 107 , and the nut sleeve 108 are connected and installed inside the transmission housing 102 .

[0165] Specifically, the transmission shaft 103 is further provided with a first annular limiting block 1032 , which is placed in the second limiting groove 10212 at the proximal end of the transmission housing 102 , thereby axially fixing the transmission shaft 103 ;

[0166] The clutch screw 107 and the first end bearing 106 are restrained between the first limiting plate 1026 and the second limiting plate 1027 of the transmission housing 102. Therefore, the clutch screw 107 transmits the input torque to the nut sleeve 108 through threaded engagement. Because the nut sleeve 108 is restrained by the nut sleeve limiting surface 10211 of the transmission housing 102, the torque applied to the nut sleeve 108 is converted into axial motion. When the nut sleeve 108 is forced to move distally, the clutch screw 107 is subjected to a reaction force, resulting in an axial load tending to move proximally. The first end bearing 106 effectively bears the axial load of the clutch screw 107, reducing the end face friction caused by the transmission.

[0167] In the embodiment of the present invention, the transmission shaft 103 drives the clutch shaft 104 , and then drives the clutch screw 107 to rotate through the first triangular displacement structure 1071 of the clutch screw 107 .

[0168] The clutch shifting device 1 further includes a clutch converter 109 , a second end bearing 111 , a driving screw 112 , and a fixing sleeve 113 .

[0169] The proximal end of the clutch converter 109 is mounted on the distal end of the clutch screw 107;

[0170] The inner side wall of the proximal end of the clutch converter 109 is a second triangular transposition structure 1091. When the end of the clutch shaft 104 with the clutch plate 105 is inserted into the proximal end of the clutch converter 109, the clutch plate 105 is inserted into the second triangular transposition structure 1091.

[0171] The end surface of the second triangular transposition structure 1091 is a slope surface;

[0172] Here, the slope design of the second triangular transposition structure 1091 and the clutch plate 105 facilitates the smooth dislocation of the two during installation. Of course, other structural designs can also be used as long as they can ensure that the second triangular transposition structure 1091 and the clutch plate 105 are fixedly installed and locked.

[0173] There are two second end bearings 111, which are respectively installed at both ends of the third annular limit block 1122 of the driving screw rod 112;

[0174] The third limiting platform 1124 at the proximal end of the driving screw 112 is inserted into the third limiting groove 1092 at the distal end of the clutch converter 109, and then inserted together into the inner cavity 1132 of the fixing sleeve 113;

[0175] Install the assembled clutch converter 109, the second end bearing 111, the drive screw 112, and the fixing sleeve 113 inside the transmission housing 102;

[0176] Specifically, the fourth limiting groove 1131 of the fixing sleeve 113 is installed on the first limiting protrusion 1029 of the transmission housing 102 ; the clutch converter 109 is limited in the first limiting groove 1028 of the transmission housing 102 .

[0177] The clutch shifting device 1 further includes two clamping rings 110 , which are respectively mounted on the clamping ring surfaces 10210 on both sides of the transmission housing 102 . Here, the clamping rings 110 are sleeved on the outside of the transmission housing 102 to lock the transmission housing 102 .

[0178] Specifically, in order to facilitate installation, the inner surface of the clamping ring 110 is designed with a chamfer 1101 .

[0179] The clutch shifting device 1 further includes a clutch shaft locker 114 and a clutch shifting bracket 115 .

[0180] The clutch shaft locker 114 is provided with a fifth limiting groove 1141, through which the clutch shaft locker 114 is mounted on the second annular limiting block 1042 of the clutch shaft 104. A third positioning post 1142 on the clutch shaft locker 114 passes through the first travel groove 1025 of the transmission housing 102, allowing the third positioning post 1142 to slide within the travel range of the first travel groove 1025.

[0181] There are two clutch transposition brackets 115, and the two clutch transposition brackets 115 are inserted into each other to form a closed loop; the clutch transposition bracket 115 is provided with a sixth limiting groove 1151, and the sixth limiting groove 1151 of the clutch transposition bracket 115 is installed on the third positioning pillar 1142 on the clutch shaft locker 114. Here, the third positioning pillar 1142 can slide 360° in the sixth limiting groove 1151, and the two clutch transposition brackets 115 are installed through the fourth positioning pillar 1152 and the third positioning hole 1153.

[0182] Push the clutch transposition bracket 115 forward, the clutch transposition bracket 115 locks the clutch shaft locker 114 and pushes the clutch shaft 104 with the clutch plate 105 into the second triangular transposition structure 1091 of the clutch converter 109. When the clutch shaft 104 with the clutch plate 105 is inserted into the second triangular transposition structure 1091 inside the clutch converter 109 at any angle, one side of the clutch plate 105 contacts the second triangular transposition structure 1091 inside the clutch converter 109. 91. Due to the pressure of the second triangular transposition structure 1091 on the clutch plate 105, the clutch plate 105 is forced to move in the opposite direction in the displacement groove 1043 of the clutch shaft 104. At this time, the clutch plate 104 continues to move toward the inside of the clutch converter 109 until it moves to the gap of the second triangular transposition structure 1091 inside the clutch converter 109, thereby completing the locking connection between the clutch shaft 104 and the clutch converter 109. This locking position is the second transmission position.

[0183] The transmission housing 102 is divided into an upper housing and a lower housing, and is fixedly installed via a plurality of second positioning pillars 1023 and a plurality of second positioning holes 1024 .

[0184] Here, the clutch converter 109 and the drive screw 112 are transmitted, the transmission shaft 103 drives the clutch shaft 104, and then the drive screw 112 is rotated through the second triangular transposition structure 1091 of the clutch converter 109. Since the screw is subjected to radial rotational motion, the front end of the drive screw 112 needs to cooperate with the transmission device 2 for cutting and suturing tissue. The drive screw 112 will be subjected to the reaction force of the transmission device 2, and there will be an axial load with a tendency to move forward or backward. Similarly, the second end face bearing 111 effectively bears the axial load of the drive screw 112, reducing the end face friction caused by the transmission.

[0185] When the clutch shaft 104 equipped with the clutch plate 105 moves from the first transmission position to the second transmission position, the clutch shaft locker 114 is fixed on the clutch shaft 104, and the clutch shaft locker 114 moves axially with the clutch shaft 104, that is, the clutch shaft locker 114 moves in the first travel groove 1025. The function of the first travel groove 1025 is to make 1142 of the clutch shaft locker 114 protrude outside the transmission housing 102.

[0186] The working process of the clutch-transfer device 1 of the laparoscope adapter in the embodiment of the present invention is as follows:

[0187] In the initial state, the clutch shaft 104 with the clutch plate 105 is inserted into the clutch screw 107, and the clutch plate 105 is inserted into the first triangular transposition structure 1071, thereby completing the locking connection between the clutch shaft 104 and the clutch screw 107, and the clutch shaft 104 enters the first transmission position;

[0188] When the transmission shaft 103 drives the clutch shaft 104 to rotate counterclockwise, the clutch shaft 104 drives the clutch screw 107 to rotate counterclockwise; the rotation of the clutch screw 107 causes the nut sleeve 108 to move axially in the distal direction, closing the staple cartridge device 4;

[0189] When the transmission shaft 103 drives the clutch shaft 104 to rotate clockwise, the clutch shaft 104 drives the clutch screw 107 to rotate clockwise; the rotation of the clutch screw 107 causes the nut sleeve 108 to move axially toward the proximal direction, causing the nail magazine device 4 to open.

[0190] Push the clutch transposition bracket 115 forward, the clutch transposition bracket 115 locks the clutch shaft locker 114, and pushes the clutch shaft 104 equipped with the clutch plate 105 into the second triangular transposition structure 1091 of the clutch converter 109, thereby completing the locking connection between the clutch shaft 104 and the clutch converter 109, and the clutch shaft 104 enters the second transmission position;

[0191] When the transmission shaft 103 drives the clutch shaft 104 to rotate counterclockwise, the clutch shaft 104 drives the clutch converter 109 to rotate counterclockwise; the rotation of the clutch converter 109 causes the axial direction of the driving screw 112 to move toward the distal direction, causing the cutting knife to fire;

[0192] When the transmission shaft 103 drives the clutch shaft 104 to rotate clockwise, the clutch shaft 104 drives the clutch converter 109 to rotate clockwise; the rotation of the clutch converter 109 causes the drive screw 112 to move axially toward the proximal direction, so that the cutting knife is reset.

[0193] The clutch shifting device 1 in the embodiment of the present invention has two transmission positions extending from its front end, namely, the first transmission position is for the nut sleeve 108 to make axial movement; the second transmission position is for the driving screw rod 112 to make rotational movement.

[0194] The transmission device 2 of one embodiment of the present invention includes a transmission restraint 201, a first transmission tube 203, a first transmission tube conversion sleeve 204, a connecting piece 212, and a conversion tube 213;

[0195] The transmission restraint 201 is divided into two upper and lower cavities, which fix the clutch shifting device 1 and the transmission device 2. The upper and lower cavities of the transmission restraint 201 are installed and fixed through multiple fifth positioning pillars 2012 and multiple fifth positioning holes 2015.

[0196] The first transmission tube conversion sleeve 204 is sleeved on the first transmission tube 203, and the distal end of the first transmission tube 203 is connected to the conversion tube 213 through the connecting piece 212. On the one hand, the first transmission tube conversion sleeve 204 is fixed to the transmission restraint 201, so that the first transmission tube conversion sleeve 204 keeps consistent with the circular motion of the restraint 201; on the other hand, the nut sleeve 108 is connected to the proximal end of the first transmission tube conversion sleeve 204. When the nut sleeve 108 moves, it drives the first transmission tube conversion sleeve 204 and the first transmission tube 203 to move, thereby pushing the conversion tube 213 to realize the closing / opening action of the nail magazine device 4.

[0197] The first transmission tube 203 has a second hole 2033 at its distal end, and the transfer tube 213 has a third hole 2131 , which are connected via the eighth positioning post 2121 of the connecting piece 212 .

[0198] The seventh limiting groove 2041 of the first transmission tube conversion sleeve 204 is mounted on the distal protrusion 1083 of the first transmission position nut sleeve 108, and the sixth positioning post 2042 of the first transmission tube conversion sleeve 204 is mounted in the first hole 2031 of the first transmission tube 203, thereby fixing the first transmission position nut sleeve 108 to the first transmission tube 203. The distal protrusion 1083 of the first transmission position nut sleeve 108 can rotate 360 ​​degrees within the seventh limiting groove 2041 of the first transmission tube conversion sleeve 204. In other words, the first transmission position nut sleeve 108 is axially fixed to the first transmission tube 203, but rotationally flexible.

[0199] The nut sleeve 108 moves axially forward and backward through threaded transmission, and the first transmission tube conversion sleeve 204 restricts the nut sleeve 108 and the first transmission tube 203 together, but does not restrict the rotational freedom, so the nut sleeve 108 controls the axial movement of the first transmission tube 203 and the first transmission tube conversion sleeve 204.

[0200] The first transmission tube conversion sleeve 204 is sleeved onto the first transmission tube 203. Specifically, the first transmission tube 203 is further provided with a first hole 2031. A sixth positioning post 2042 is provided on the inner wall of the first transmission tube conversion sleeve 204. The sixth positioning post 2042 is mounted on the first hole 2031 of the first transmission tube 203. The transmission restraint 201 is provided with a second travel groove 2014. The seventh positioning post 2043 of the first transmission tube conversion sleeve 204 is mounted in the second travel groove 2014 of the transmission restraint 201, allowing the seventh positioning post 2043 of the first transmission tube conversion sleeve 204 to move axially within the second travel groove 2014. The first transmission tube conversion sleeve 204 is aligned with the circumferential direction of the restraint 201. Here, the front and rear ends of the travel groove 2014 are slightly larger than the axial movement distance of the first transmission tube conversion sleeve 204 driven by the transmission restraint 201 to prevent accidental interference.

[0201] When the clutch shifting device 1 is in the first transmission position, the clutch screw 107 drives the nut sleeve 108 forward or backward. Since the first transmission position nut sleeve 108 is fixedly connected to the first transmission tube conversion sleeve 204, it will drive the first transmission tube conversion sleeve 204 forward or backward. Since the first transmission tube conversion sleeve 204 is fixedly connected to the first transmission tube 203, the first transmission tube 203 is axially limited by the first transmission tube conversion sleeve 204 and the nut sleeve 108, so that the axial movement of the first transmission tube 203 and the nut sleeve 108 remains consistent, and the circumferential freedom of the first transmission tube 203 is consistent with the transmission restraint 201.

[0202] The transmission device 2 further includes a nut sleeve 206, a propulsion nut 207, a firing sleeve 208, a second transmission tube converter 209, a second transmission tube conversion sleeve 210, and a cutting knife 211;

[0203] The proximal end of the nut sleeve 206 is provided with a fifth limiting platform 2061 that cooperates with the fourth limiting platform 1133 on the fixed sleeve 113. Here, the interior of the nut sleeve 206 is not round, but rather has a structure with the fifth limiting platform 2061. The internal platform 2061 of the nut sleeve 206 cooperates with the platform 2071 of the propulsion nut 207 to limit the propulsion nut 207 in the circumferential direction, allowing 207 to move axially. The proximal end of the nut sleeve 206 is inserted into the distal end of the fixed sleeve 113 and welded to it; the distal end 2062 of the nut sleeve is welded to the second annular protrusion 2091 of the second transmission tube converter 209; the arc-shaped positioning protrusion 2101 of the second transmission tube converter 210 is installed in the annular groove 2092 of the second transmission tube converter 209;

[0204] The advancing nut 207 is installed on the driving screw rod 112, and the fourth thread 2072 cooperates with the third thread 1125 of the driving screw rod 112 to threadably connect the advancing nut 207 to the driving screw rod 112; the advancing nut 207 is installed inside the nut sleeve 206, and the fifth limiting platform 2061 of the nut sleeve 206 cooperates with the sixth limiting platform 2071 of the advancing nut 207, and the advancing nut 207 is inserted into the nut sleeve 206, and the advancing nut 207 can move inside the nut sleeve 206.

[0205] When the advancing nut 207 is driven by the driving screw 112 , the advancing nut 207 moves axially in the nut sleeve 206 .

[0206] The proximal end of the firing sleeve 208 is provided with a first annular protrusion 2081 which is locked in the propulsion nut 207 , and the distal end of the firing sleeve 208 is provided with a second positioning groove 2082 for mounting the cutting knife 211 .

[0207] The nut sleeve 206 and the second transmission tube converter 209 are welded and fixed, and the propulsion nut 207 and the firing sleeve 208 are axially fixed. At the same time, the propulsion nut 207 and the firing sleeve 208 move axially within the nut sleeve 206 and the second transmission tube converter 209 due to the positional restraints of the fifth and sixth restraining platforms 2061 and 2071. The cutting blade 211 and the firing sleeve 208 are fixed, so the propulsion nut 207, the firing sleeve 208, and the cutting blade 211 move in the same manner.

[0208] The nut sleeve 206 is sleeved on the propulsion nut 207, the clutch converter 109 is connected to the drive screw 112, the distal end of the drive screw 112 is connected to the propulsion nut 207, the distal end of the propulsion nut 207 is connected to the firing sleeve 208, and the distal end of the firing sleeve 208 is connected to the cutting knife 211. The clutch converter 109 rotates to control the axial movement of the drive screw 112, and finally makes the cutting knife 211 move forward or backward.

[0209] The transmission device 2 further includes a steering bracket 202 and a second transmission tube 205;

[0210] The steering bracket 202 is sleeved on the transmission housing 102 and can move axially on the transmission housing 102; the steering bracket 202 is provided with an axial hole 20211, which is sleeved on the transmission housing 102 of the clutch shifting device 1. The distal end of the steering bracket 202 contacts the proximal end of the transmission constraint 201. The transmission constraint 201 has two symmetrical sidewalls with slide rails 2013 on the inner sides. The steering bracket 202 has two sides with sliding rods 20221. The sliding rods 20221 of the steering bracket 202 can slide axially on the slide rails 2013 of the transmission constraint 201.

[0211] The first transmission tube 203 is sleeved on the second transmission tube 205;

[0212] The end of the sliding rod 20221 of the steering bracket 202 is also provided with a second positioning protrusion 20222. This second positioning protrusion 20222 passes through the first clearance groove 2032 of the first transmission tube 203 and is installed in the corresponding sixth positioning hole 2051 of the second transmission tube 205. This allows the steering bracket 202 to drive the second transmission tube 205 to axially move within the range of the first clearance groove 2032. Here, the length of the first clearance groove 2032 is slightly greater than the axial movement distance of the second transmission tube 205 driven by the steering bracket 202 to prevent accidental interference.

[0213] It should be noted that the steering bracket 202 drives the axial movement of the second transmission tube 205 without causing the movement of the first transmission tube 203 and the first transmission tube conversion sleeve 204. The first clearance groove 2032 on the first transmission tube 203 is a clearance groove made to avoid simultaneous movement. The second positioning protrusion 20222 passes through the first clearance groove 2032 and is installed in the sixth positioning hole 2051 of the second transmission tube 205 to control the movement of the second transmission tube 205.

[0214] Here, the axial movement of the nut sleeve 108 causes the first transmission tube conversion sleeve 204 to move, thereby causing the first transmission tube 203 to move. Since there is a first give way groove 2032 on the first transmission tube 203, the first transmission tube 203, the first transmission tube conversion sleeve 204 structure and the steering bracket 202, the second transmission tube 205 structure do not interfere with each other, and the steering bracket 202 and the second transmission tube 205 do not move.

[0215] In the present invention, the closing movement and the left and right bending movement respectively control the axial movement of the first transmission tube 203 and the second transmission tube 205. The space is too small, and the second transmission tube 205 is provided with a second make way groove 2052 for make way processing to avoid the second transmission tube 205 from interfering with the sixth positioning column 2042 of the first transmission tube conversion sleeve 204.

[0216] It can be seen that the first transmission pipe 203 and the second transmission pipe 205 are two systems and do not interfere with each other.

[0217] The working process of the transmission device 2 of the laparoscope adapter in the embodiment of the present invention is as follows:

[0218] The nut sleeve 108 is connected to the first transmission tube conversion sleeve 204. When the clutch screw 107 rotates counterclockwise, the nut sleeve 108 moves axially toward the distal end. The nut sleeve 108 pushes the first transmission tube conversion sleeve 204 to move axially toward the distal end. Since the first transmission tube conversion sleeve 204 is connected to the first transmission tube 203, the first transmission tube 203 is connected to the connecting piece 212, and the connecting piece 212 is connected to the transfer tube 213, the transfer tube 213 moves distally, causing the nail magazine device 4 to perform a closing action; similarly, when the clutch screw 107 rotates clockwise, the nut sleeve 108 moves axially toward the proximal end, causing the nail magazine device 4 to perform an opening action.

[0219] When the clutch converter 109 rotates counterclockwise, it causes the drive screw 112 to move axially toward the distal direction. Since the drive screw 112 is connected to the push nut 207, the push nut 207 moves axially in the nut sleeve 206, and the push nut 207 is connected to the firing sleeve 208. The firing sleeve 208 is connected to the cutting knife 211, so that the cutting knife is fired to perform the cutting action; similarly, when the clutch converter 109 rotates clockwise, it causes the drive screw 112 to move axially toward the proximal direction, so that the cutting knife performs the reset action.

[0220] The laparoscope adapter according to an embodiment of the present invention further includes a housing device 5 , which is connected to the clutch-transfer device 1 and is used to switch the clutch-transfer device 1 between a first transmission position and a second transmission position.

[0221] Specifically, the housing device 5 of the laparoscope adapter includes an upper housing 501 , a lower housing 502 , a switching clutch handle 503 , and a spring 504 .

[0222] The upper shell 501 and the lower shell 502 are ultrasonically welded to fix the clutch shifting device 1 and the transmission device 2 inside the upper and lower shells.

[0223] The transmission restraint 201 is provided with a fourth positioning hole 2011, the upper shell 501 is provided with a seventh positioning pillar 5012, and the lower shell 502 is provided with a ninth positioning pillar 5022. The transmission restraint 201 and the upper shell 501 and the lower shell 502 are fastened by the pillars to further enhance stability.

[0224] There is an eighth positioning pillar 1154 on the clutch shifting bracket 115 of the clutch shifting device 1, a first travel groove 5016 is provided on the upper shell 501, and a second travel groove 5026 is correspondingly provided on the lower shell 502. The eighth positioning pillar 1154 protrudes from the first travel groove 5016 of the upper shell 501 and the second travel groove 5026 of the lower shell 502.

[0225] The switching clutch handle 503 has a ninth limiting groove 5033. The spring piece 504 is pressed into the ninth limiting groove 5033 so that the spring piece 504 protrudes from both sides of the second positioning block 5031 of the switching clutch handle 503. The length of the ninth limiting groove 5033 of the switching clutch handle 503 is greater than the length of the spring piece 504, so that the spring piece 504 can extend into the ninth limiting groove 5033 after being compressed. The spring piece 504 has a highly elastic and resettable material property. After the compression is lost, the spring piece 504 returns to its initial position. Here, the ninth limiting groove 5033 plays a limiting role on the spring piece 504.

[0226] The second positioning block 5031 of the conversion clutch handle 503 is aligned with the eighth limiting groove 5017 of the upper shell 501 and the eleventh limiting groove 5027 of the lower shell 502, respectively, and is also aligned with the eleventh positioning hole 5032 of the conversion clutch handle 503 and the positioning pillar 1154 of the clutch shift bracket 115 protruding from the first stroke groove 5016 of the upper shell 501 and the second stroke groove 5026 of the lower shell 502. There are two conversion clutch handles 503. The upper and lower conversion clutch handles 503 are ultrasonically welded to lock the conversion clutch handle 503 and the clutch shift bracket 115. The second positioning block 5031 of the conversion clutch handle 503 moves axially in the eighth limiting groove 5017 of the upper shell 501 and the eleventh limiting groove 5027 of the lower shell 502.

[0227] The limiting groove 5017 of the upper shell 501 has a first concave positioning groove 5018, and the eleventh limiting groove 5027 of the lower shell 502 has a corresponding second concave positioning groove 5028. When the clutch shifting device 1 is in the first transmission position, since the clutch shifting handle 503 is locked with the clutch shifting bracket 115, the spring pieces 504 on both sides of the positioning block 5031 protruding from the clutch shifting handle 503 are stuck in the first concave positioning groove 5018 and the second concave positioning groove 5028 on the left side, so that the clutch shifting handle 503 will not be accidentally shifted without applying force. Similarly, when the clutch shifting device 1 is in the second transmission position, the spring pieces 504 on both sides of the positioning block 5031 protruding from the clutch shifting handle 503 are stuck in the first concave positioning groove 5018 and the second concave positioning groove 5028 on the right side. This design can provide a certain degree of shifting feel for switching between the two transmission positions.

[0228] The working process of the housing device 5 of the laparoscope adapter according to one embodiment of the present invention is as follows:

[0229] In the initial state, the shift clutch handle 503 is at the proximal end, and the spring pieces 504 protruding from the positioning block 5031 of the shift clutch handle 503 are stuck at the proximal ends of the first concave positioning groove 5018 and the second concave positioning groove 5028, thereby being in the first transmission position. The shift clutch handle 503 is pushed distally, so that the spring pieces 504 protruding from the positioning block 5031 of the shift clutch handle 503 are stuck at the distal ends of the first concave positioning groove 5018 and the second concave positioning groove 5028, thereby being in the second transmission position. Similarly, pulling the shift clutch handle 503 proximal returns the shift clutch handle 503 to the first transmission position.

[0230] The laparoscope adapter of one embodiment of the present invention also includes a bending device 3, the distal end of the transmission device 2 is connected to the proximal end of the bending device 3, and the distal end of the bending device 3 is connected to the nail magazine device 4. Here, the clutch shifting device 1 drives the transmission device 2, driving the bending device 3 to cause the nail magazine device 4 to bend.

[0231] The bending device 3 mainly includes a transmission base 301, a base side limit block 302, a driving rack 303, a locking block 304, a secondary rack 305, a driving gear 306, a gear cover 307, a bending gear 308, a first bending joint 311, a second bending joint 312, and a gear pin 318.

[0232] The upper plane of the steering bracket 202 is limited by the bending device 3 , so that the steering bracket 202 can move axially on the transmission housing 102 of the clutch shifting device 1 .

[0233] The bending device 3 includes a first bending joint 311 and a second bending joint 312. One end of the first bending joint 311 is connected to one end of the second bending joint 312. Specifically, the second bending joint 312 is engaged with the first bending joint 311 through a gear. The other end of the first bending joint 311 is connected to the transmission base 301, and the other end of the second bending joint 312 is connected to the staple cartridge device 4.

[0234] Specifically, a driving rack groove 3016 is provided on the side wall of the transmission base 301, and the driving rack 303 is installed in the driving rack groove 3016 of the transmission base 301, so that the driving rack 303 makes axial movement in the driving rack groove 3016 of the transmission base 301; the driving rack 303 is the driving force input end, and the transmission device 2 provides driving force for the bending device 3 through the driving rack 303.

[0235] The proximal end of the transmission base 301 is connected to the distal end of the second transmission tube converter 209, and the firing sleeve 208 passes through the second transmission tube converter 209 and enters the firing rod cavity 3011 of the transmission base 301. Specifically, the second transmission tube 205 is provided with a third clearance groove 2054. The interior of the third clearance groove 2054 is the connection between the second transmission tube converter 209 and the transmission base 301. The first positioning blocks 2102 of the left and right second transmission tube conversion sleeves 210 are respectively inserted into the seventh positioning holes 3012 of the transmission base 301. The arc-shaped positioning protrusion 210 of the second transmission tube conversion sleeve 210 1 is inserted into the annular groove 2092 of the second transmission tube converter 209, so that the second transmission tube converter 209 and the transmission base 301 are axially locked, but with rotational freedom. The arc-shaped positioning protrusion 2101 of the second transmission tube conversion sleeve 210 can rotate 360 ​​degrees in the annular groove 2092 of the second transmission tube converter 209. The locking block 304 is simultaneously inserted into the ninth positioning hole 3031 of the drive rack 303 and the sixth positioning hole 2051 at the front end of the second transmission tube 205, so that the second transmission tube 205 and the drive rack 303 are locked, thereby allowing the second transmission tube 205 to control the bending device 3 to bend left and right.

[0236] The second transmission tube conversion sleeve 210 simultaneously limits the transmission base 301 and the nut sleeve 206 in axial direction, and the circumferential degrees of freedom of the transmission base 301 and the nut sleeve 206 are independent of each other.

[0237] The transmission base 301 is provided with a gear mounting column 3015 for mounting the driving gear 306;

[0238] The transmission base 301 is also provided with a secondary rack groove 3017 for mounting the secondary rack 305;

[0239] The driving gear 306 , the driving rack 303 and the auxiliary rack 305 are meshed with each other to transmit the driving force of the driving rack 303 to the auxiliary rack 305 , that is, the movement direction of the auxiliary rack 305 is always opposite to that of the driving rack 303 .

[0240] The transmission base 301 is provided with a bending gear groove 3018 for accommodating the bending gear 308. The bending gear 308 is provided with a sixth positioning post 3081. The transmission base 301 is provided with an eighth positioning hole 3019. The sixth positioning post 3081 is inserted into the eighth positioning hole 3019 to securely connect the bending gear 308 to the transmission base 301.

[0241] The bending gear 308 is provided with a second mounting hole 3082, and the first bending joint 311 is provided with a mounting post 3111. The mounting post 3111 is mounted on the second mounting hole 3082 of the bending gear 308, so that the first bending joint 311 can perform circular motion around the axis of the second mounting hole 3082 of the bending gear 308;

[0242] The second bending joint 312 is provided with a second mounting groove 3122, and the first bending joint 311 is provided with a third mounting hole 3112. The end of the first bending joint 311 with the third mounting hole 3112 is inserted into the second mounting groove 3122 of the second bending joint 312. The gear pin 318 is inserted into the aligned third mounting hole 3112 of the first bending joint 311 and the fourth mounting hole 3123 of the second bending joint 312, so that the second tooth surface 3121 of the second bending joint 312 is meshed with the first tooth surface 3083 of the bending gear 308.

[0243] The first bending joint 311 makes a circular motion about the axis of the second mounting hole 3082 on the bending gear 308, and the second bending joint 312 meshes with the first tooth surface 3083 of the bending gear 308 to form a planetary gear structure. Since the second mounting hole 3082 and the first tooth surface 3083 are coaxial, and the third mounting hole 3112 of the first bending joint 311 and the fourth mounting hole 3123 of the second bending joint 312 are fixed, the bending motions of the first bending joint 311 and the second bending joint 312 are linked.

[0244] The second bending joint 312 is pushed, and the second bending joint 312 is bent. The second bending joint 312 is engaged with the bending gear 308, and the second bending joint 312 rotates counterclockwise relative to the bending gear 308, thereby driving the first bending joint 311 to bend, causing the staple cartridge assembly to bend in one direction;

[0245] When the second bending joint 312 is pulled, the second bending joint 312 bends, the second bending joint 312 engages with the bending gear 308, and the second bending joint 312 rotates clockwise relative to the bending gear 308, thereby driving the first bending joint 311 to bend, causing the nail magazine assembly to bend in the other direction.

[0246] The eighth mounting hole 3072 of the gear cover 307 is installed on the upper end of the gear mounting column 3015 on the transmission base 301, on which the gear 306 is installed, so as to limit the driving gear 306. A third positioning protrusion 3071 is provided on one side of the gear cover 307. During installation, the third positioning protrusion 3071 is aligned with the groove on the left side of the gear mounting column 3015 on the transmission base 301, so that it can be installed in one direction to ensure that the curved surface at the upper end of the gear cover 307 and the transmission base 301 are coaxial.

[0247] There are conical surfaces 3021 on both sides of the base side limit block 302. The base side limit block 302 is inserted into the clearance groove 3013 of the transmission base 301 to limit the firing sleeve 208 inside the firing rod cavity 3011 and make it move axially.

[0248] The bending device 3 also includes a first connecting rod 313 and a second connecting rod 314. The proximal end of the first connecting rod 313 is provided with a protrusion 3131, which is inserted into the first mounting groove 3033 of the driving rack 303. The protrusion 3131 of the first connecting rod 313 is provided with a seventh mounting hole 3132, and the driving rack 303 is correspondingly provided with a first mounting hole 3034. The first connecting rod pin 315 passes through the aligned mounting hole 3132 on the first connecting rod 313 and the first mounting hole 3034 on the driving rack 303 to fix the proximal end of the first connecting rod 313 to the driving rack 303; the proximal end of the second connecting rod 314 is inserted into the third mounting groove 3133 on the first connecting rod 313, and the first connecting rod 313 is fixed to the driving rack 303. The distal end of the first link 313 is provided with a sixth mounting hole 3134, the proximal end and the distal end of the second link 314 are respectively provided with a fifth mounting hole 3141, the second link pin 316 passes through the sixth mounting hole 3134 and the fifth mounting hole 3141, and fixes the distal end of the first link 313 to the proximal end of the second link 314; the distal end of the second link 314 is inserted into the link groove 3124 on the second bending joint 312, and the second bending joint 312 is provided with an eighth mounting hole 3125, and the third link pin 317 is inserted into the fifth mounting hole 3141 on the second link 314 and the eighth mounting hole 3125 of the second bending joint 312, to fix the distal end of the second link 314 to the second bending joint 312.

[0249] Similarly, the connecting rods on the left and right sides are installed in the same way, so that the racks on the left and right sides are connected to the second bending joint 312 through the connecting rod structure.

[0250] Insert the limiting tube 309 into the transmission base 301 from the left end until the limiting tube 309 presses against the front end 30110 of the transmission base 301. At this time, there is an annular limiting groove 30111 of the transmission base 301 on the left side of the limiting tube 309. Install the open retaining ring 310 on the annular limiting groove 30111 of the transmission base 301. Since there is an inward extending limiting block 3101 on the open retaining ring 310, the open retaining ring 310 is locked in the annular limiting groove 30111 of the transmission base 301, and then the open retaining ring 310 limits the limiting tube 309 in the axial direction.

[0251] At this time, the limiting tube 309 restricts the driving rack 303, the locking block 304, the auxiliary rack 305, the driving gear 306, the gear cover 307, the bending gear 308, the first connecting rod 313, the second connecting rod 314, etc. in the transmission base 301 to form a stable bending device 3.

[0252] The steering bracket 202 is connected to the second transmission tube 205, the second transmission tube 205 is connected to the locking block 304, the locking block 304 is connected to the driving rack 303, and the driving rack 303 is connected to the first connecting rod 313, the second connecting rod 314, and the second bending joint 312 in sequence, thereby controlling the first connecting rod 313 and the second connecting rod 314 to move forward and backward, and pulling the second bending joint 312 to bend left and right.

[0253] Specifically, the working process of the bending device 3 of the laparoscope adapter according to one embodiment of the present invention is as follows:

[0254] The transmission device 2 pushes the driving rack 303. Since the driving gear 306, the driving rack 303, and the auxiliary rack 305 are meshed with each other, the driving rack 303 drives the auxiliary rack 305 to move axially toward the distal end. The driving rack 303 pushes the second bending joint 312, and the second bending joint 312 is bent. The second bending joint 312 is meshed with the bending gear 308, and the second bending joint 312 rotates counterclockwise relative to the bending gear 308, thereby driving the first bending joint 311 to bend, and the first connecting rod 313 and the second connecting rod 314 to bend, so that the nail magazine device 4 is bent in one direction.

[0255] The transmission device 2 pulls the driving rack 303. Since the driving gear 306, the driving rack 303 and the auxiliary rack 305 are engaged with each other, the driving rack 303 drives the auxiliary rack 305 to move axially toward the proximal end. The auxiliary rack 305 pushes the second bending joint 312, and the second bending joint 312 bends. The second bending joint 312 is engaged with the bending gear 308, and the second bending joint 312 rotates clockwise relative to the bending gear 308, thereby driving the first bending joint 311 to bend, and the first connecting rod 313 and the second connecting rod 314 are bent, so that the nail magazine assembly bends in another direction.

[0256] The staple cartridge device 4 of the laparoscope adapter according to an embodiment of the present invention includes a staple cartridge base 401 and a fixing pin 404 .

[0257] The second bending joint 312 is fixedly connected to the nail magazine device 4. Specifically, the annular positioning protrusion 3126 of the second bending joint 312 is inserted into the tenth positioning hole 4011 of the nail magazine base 401. The second bending joint 312 has a side mounting hole 3127 and an upper mounting hole 3128. The nail magazine base 401 has a side mounting hole 4012 and an upper mounting hole 4013. Multiple fixing pins 404 are respectively inserted into the side mounting holes of the second bending joint 312 and the side mounting holes of the nail magazine base 401, so that the second bending joint 312 and the nail magazine base 401 are completely locked.

[0258] The laparoscope adapter according to an embodiment of the present invention further includes a knob device 6 , which controls the bending device 3 to bend left and right through the transmission device 2 .

[0259] The knob device 6 includes a knob assembly 601 , a knob base 602 , a knob positioner 603 , a stop sleeve 604 , a stopper 605 , and a stop spring 606 .

[0260] The knob assembly 601 is installed on the upper shell 501, and the knob base 602 is installed at the lower end. The knob base 602 is installed with a knob locator 603 at a certain distance from the base axis. The lower end of the knob base 602 is the steering bracket 202 of the transmission device 2. The upper end surface of the steering bracket 202 is matched with a small gap between the knob base 602. The steering bracket 202 is limited in the circumferential direction on the clutch shifting device 1. The upper end surface of the steering bracket 202 is provided with a stroke positioning block 2023, and the stroke positioning block 2023 is provided with a third stroke groove 20231. The knob locator 603 installed on the knob base 602 is also installed in the third stroke groove 20231 of the stroke positioning block 2023.

[0261] When the knob assembly 601 and the housing are in the same direction, the knob positioner 603 is inserted into the third travel slot 20231 of the steering bracket 202, so that the steering bracket 202 is in the middle position of the axial forward and backward movement stroke.

[0262] There is a distance between the knob locator 603 and the axis, that is, it is in an eccentric position. When the knob is rotated 90°, the knob locator 603 can be moved from the lateral eccentric position to the axial eccentric position. The knob locator 603 moves the distance of the eccentric radius in the axial direction, thereby driving the steering bracket 202 to move the distance of the eccentric radius. The steering bracket 202 is driven by the knob locator 603 and is at the end position of the stroke.

[0263] When the knob assembly 601 rotates 90 degrees, the steering bracket 202 is driven by the knob positioner 603 and is at the front end position or the rear end position of the stroke.

[0264] The knob base 602 has a positioning groove 6021, and the stop sleeve 604 has a stop pillar 6041 installed in the stopper mounting groove 5019 of the upper shell 501. There are positioning ribs 50110 on both sides of the stopper mounting groove 5019, which cooperate with the limiting groove 6042 on the stop sleeve 604 to further tighten the stop sleeve 604.

[0265] The rod body 6052 of the stopper 605 is sleeved with the stop spring 606 and inserted into the stop sleeve 604 , and the stop tip 6051 of the stopper 605 presses against the knob base 602 .

[0266] When the knob assembly 601 is in the initial zero position, the stop tip 6051 presses against the positioning groove 6021 of the knob base 602. With the stop tip 6051 inserted into the positioning groove 6021 of the knob base 602, the knob assembly 601 will not rotate easily without applying force, preventing accidental activation and providing a firm feel for switching from the initial zero position. When the knob assembly 6 is not in the initial zero position, the stop tip 6051 presses against the annular surface of the knob base 602 outside the positioning groove 6021.

[0267] The knob assembly 601 rotates 90° clockwise. At this time, the steering bracket 202 is driven by the knob positioner 603. The steering bracket 202 moves axially toward the rear end on the clutch shifting device 1 and is at the rear end end position of the stroke. At the same time, the steering bracket 202 pulls the second transmission tube 205 to move toward the rear end. The second transmission tube 205 is connected to the driving rack 303, that is, the driving rack 303 pulls the connecting rod mechanism on the left to make the first bending joint 311 and the second bending joint 312 engage and move to the left through the bending gear 308. The maximum bending angle is 60°.

[0268] The knob assembly 601 rotates 90° counterclockwise. At this time, the steering bracket 202 is driven by the knob positioner 603. The steering bracket 202 moves axially toward the front end on the clutch shifting device and is at the front end end position of the stroke. The steering bracket 202 pushes the second transmission tube 205 to move toward the front end. The second transmission tube 205 is connected to the driving rack 303. The driving rack 303 is engaged through the driving gear 306. The driving gear 306 transmits the driving force to the auxiliary rack 305, that is, the auxiliary rack 305 pulls the right connecting rod mechanism to make the first bending joint 311 and the second bending joint 312 move to the right in linkage. The maximum bending angle is 60°.

[0269] The present invention also discloses an anastomosis device comprising the laparoscope adapter according to any one of the above aspects.

[0270] After adopting such a design, the present invention has at least the following advantages:

[0271] (1) This patent is a laparoscopic adapter with replaceable staple cartridges based on an electric host platform. The laparoscopic adapter with replaceable staple cartridges is connected to the electric host platform via a transmission shaft and a locker. The transmission device can realize the transmission switching between closing the staple cartridge and cutting and suturing tissue functions through a clutch shifting device, thereby realizing the modularization of the electric host and the transmission device, enabling the reuse of the electric host platform and improving the adaptability of the electric laparoscopic stapler.

[0272] (2) The present invention separates and modularizes the electric host platform and the adapter, which not only improves the adaptability of the electric laparoscopic stapler, but also allows the electric host platform to be reused, effectively reducing the cost of surgical instruments.

[0273] (3) The clutch shifting device of the adapter designed in the present invention can realize the switching of two transmission positions by adjusting the clutch shifting bracket outside the transmission housing, thereby realizing that one drive shaft can simultaneously control the two functions of closing the nail magazine and cutting and suturing tissue.

[0274] (4) The double joints designed in the present invention share the bending curvature of a single joint, so under the same bending curvature, the bending angle of the double joints is larger.

[0275] (5) The present invention has a simple structure, good effect, low cost and easy process implementation.

[0276] Those skilled in the art will readily recognize other embodiments of the present invention after considering the invention disclosed in the specification and examples. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0277] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A laparoscope adapter, connected to an electric host platform, characterized in that It comprises a clutch-shifting device (1), a transmission device (2), and a nail magazine device (4); the clutch-shifting device (1), the transmission device (2), and the nail magazine device (4) are connected in sequence; The first transmission position of the clutch shifting device (1) controls the closing / opening of the nail magazine device (4) through the transmission device (2), and the second transmission position of the clutch shifting device (1) controls the firing / resetting of the cutting knife through the transmission device (2); The clutch shifting device (1) comprises: A locking device (101), a transmission housing (102) and a transmission shaft (103); The locker (101) is fixedly connected to the transmission housing (102); The locking device (101) further comprises a transmission hole (1013), wherein the transmission hole (1013) is used for installing the transmission shaft (103); the proximal end of the transmission shaft (103) passes through the locking device (101) and is connected to the electric host platform; The transmission housing (102) includes a clutch shaft (104), a clutch plate (105), a first end face bearing (106), a clutch screw (107), and a nut sleeve (108); The distal end of the transmission shaft (103) is fixedly connected to the proximal end of the clutch shaft (104); The distal side wall of the clutch shaft (104) is provided with a displacement groove (1043) for accommodating the clutch plate (105), and the height of the clutch plate (105) is greater than the diameter of the clutch shaft (104); The first end face bearing (106) is connected to one end of the clutch screw (107) and is used to bear the axial load of the clutch screw (107) and reduce the end face friction of the clutch screw (107); The outer side wall of the clutch screw rod (107) is provided with a first thread (1072), and the inner side wall of the nut sleeve (108) is provided with a second thread (1081). The nut sleeve (108) is screwed into the first thread (1072) of the clutch screw rod (107) through the second thread (1081), so that the nut sleeve (108) and the clutch screw rod (107) are fixedly connected, thereby completing self-locking; The transmission housing (102) further includes a clutch converter (109), a second end bearing (111), a driving screw (112), and a fixed sleeve (113); The proximal end of the clutch converter (109) is mounted on the distal end of the clutch screw (107); There are two second end face bearings (111), which are respectively mounted on both ends of the third annular limiting block (1122) of the driving screw rod (112); The third limiting platform (1124) at the proximal end of the driving screw (112) is inserted into the third limiting groove (1092) at the distal end of the clutch converter (109), and then inserted together into the inner cavity (1132) of the fixing sleeve (113); The clutch transposition device (1) further includes a clutch shaft locker (114) and a clutch transposition bracket (115). A second annular stopper (1042) is provided at the proximal end of the clutch shaft (104), and the clutch shaft locker (114) is mounted on the second annular stopper (1042) of the clutch shaft (104); The clutch shaft locker (114) is fixedly connected to the clutch transposition bracket (115).

2. The laparoscope adapter according to claim 1, characterized in that: It also includes a bending device (3); the bending device (3) is located between the transmission device (2) and the nail magazine device (4); The bending device (3) is used to realize a bending action of the nail magazine device (4).

3. The laparoscope adapter according to claim 2, characterized in that The invention also includes a housing device (5); The housing device (5) is connected to the clutch shifting device (1) and is used to switch the first transmission position and the second transmission position of the clutch shifting device (1).

4. The laparoscope adapter according to claim 3, characterized in that It also includes a knob device (6); the knob device (6) controls the bending of the bending device (3) through the transmission device (2).

5. The laparoscope adapter according to claim 4, characterized in that: The clutch shifting device (1) comprises a first transmission position component and a second transmission position component. When the housing device (5) is connected to the first transmission position assembly, the housing device (5) is located in the first transmission position; When the housing device (5) is connected to the second transmission position assembly, the housing device (5) is located at the second transmission position.

6. The laparoscope adapter according to claim 5, characterized in that: The clutch converter (109) is limited in the first limiting groove (1028) of the transmission housing (102); A second triangular transposition structure (1091) is provided inside the clutch converter (109); The third limiting platform (1124) of the driving screw (112) is inserted into the third limiting groove (1092) of the clutch converter (109).

7. The laparoscope adapter according to claim 6, characterized in that: The transmission device (2) comprises a transmission restrainer (201), a first transmission tube (203), a first transmission tube conversion sleeve (204), a connecting piece (212), and a conversion tube (213); The transmission restraint (201) is divided into two upper and lower cavities, which fix the clutch shifting device (1) and the transmission device (2); The first transmission tube conversion sleeve (204) is sleeved on the first transmission tube (203), and the distal end of the first transmission tube (203) is connected to the conversion tube (213) via the connecting piece (212).

8. The laparoscope adapter according to claim 7, characterized in that: The transmission device (2) further comprises a nut sleeve (206), a propulsion nut (207), a firing sleeve (208), a second transmission tube converter (209), a second transmission tube conversion sleeve (210), and a cutting knife (211); The nut sleeve (206) and the second transmission tube converter (209) are welded and fixed; The propulsion nut (207) and the firing sleeve (208) are axially fixed; The propulsion nut (207) and the firing sleeve (208) are inside the nut sleeve (206) and the second transmission tube converter (209); The proximal end of the cutting knife (211) and the distal end of the firing sleeve (208) are fixedly connected.

9. The laparoscope adapter according to claim 8, characterized in that: The transmission device (2) further includes a steering bracket (202) and a second transmission tube (205); The steering bracket (202) is sleeved on the transmission housing (102) and moves axially on the transmission housing (102); A second positioning protrusion (20222) is provided at the end of the sliding rod (20221) of the steering bracket (202). The second positioning protrusion (20222) passes through the first clearance groove (2032) of the first transmission tube (203) and is installed in the sixth positioning hole (2051) corresponding to the second transmission tube (205), so that the steering bracket (202) can drive the second transmission tube (205) to perform axial movement within the travel range of the first clearance groove (2032).

10. The laparoscope adapter according to claim 9, characterized in that: The housing device (5) comprises an upper housing (501), a lower housing (502), a switching clutch handle (503), and a spring (504); The upper shell (501) and the lower shell (502) are ultrasonically welded to fix the clutch shifting device (1) and the transmission device (2) inside the upper shell (501) and the lower shell (502); The conversion clutch handle (503) is provided with a ninth limiting groove (5033). The spring piece (504) is pressed into the ninth limiting groove (5033) so that the spring piece (504) protrudes from both sides of the second positioning block (5031) of the conversion clutch handle (503). The length of the ninth limiting groove (5033) of the conversion clutch handle (503) is greater than the length of the spring piece (504). After being pressed, the spring piece (504) extends into the ninth limiting groove (5033), so that the ninth limiting groove (5033) limits the spring piece (504).

11. The laparoscope adapter according to claim 10, characterized in that: The bending device (3) comprises a transmission base (301), a driving rack (303), an auxiliary rack (305), a driving gear (306), a bending gear (308), a first bending joint (311), and a second bending joint (312); The driving rack (303), the auxiliary rack (305), and the driving gear (306) are respectively mounted on the transmission base (301); the driving gear (306), the driving rack (303), and the auxiliary rack (305) are engaged with each other; the driving rack (303) moves axially in the driving rack groove (3016) of the transmission base (301); and the driving gear (306) transmits the driving force of the driving rack (303) to the auxiliary rack (305); The bending gear (308) is fixedly connected to the transmission base (301); The distal end of the first bending joint (311) is movably connected to the proximal end of the second bending joint (312), and the distal end of the second bending joint (312) is connected to the nail magazine device (4); The first bending joint (311) can perform circular motion around the axis of the second mounting hole (3082) of the bending gear (308); The second tooth surface (3121) of the second bending joint (312) is meshed with the first tooth surface (3083) of the bending gear (308); The second bending joint (312) bends, driving the first bending joint (311) to bend, causing the nail magazine device to bend.

12. The laparoscope adapter according to claim 11, characterized in that: The bending device (3) further includes a first connecting rod (313) and a second connecting rod (314); The proximal end of the first connecting rod (313) is fixedly connected to the driving rack (303); The distal end of the first connecting rod (313) is fixedly connected to the proximal end of the second connecting rod (314); The distal end of the second connecting rod (314) is fixedly connected to the second bending joint (312).

13. The laparoscope adapter according to claim 12, characterized in that: The knob device (6) comprises a knob assembly (601), a knob base (602), a knob positioner (603), a stop sleeve (604), a stopper (605), and a stop spring (606); The knob assembly (601) is mounted on the upper housing (501); The knob base (602) is mounted on the lower end of the knob assembly (601); The knob locator (603) is mounted on the knob base (602); The stopper (605) is sleeved with the stop spring (606) and inserted into the stop sleeve (604).

14. A stapler, characterized in that: Comprising a laparoscope adapter as described in any one of claims 1-13.

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